Shrinking Habitat Doesn’t Keep Emperor Penguins From Breeding

[ Watch the Video: Emperor Penguins Are Breeding On Ice Shelves ]

Gerard LeBlond for www.redorbit.com – Your Universe Online

The emperor penguins of Antarctica, which have lost much of their breeding habitat due to shrinking ice pack, have shown their resiliency to environmental impacts by moving to new breeding locations where ice is thicker, as has been seen via satellite images, reports BBC News‘ Jonathan Amos.

A new study, published in the online journal PLOS ONE, describes the great distances these penguins march to find an alternate place to breed. These alternate sites are towards the coast, up over ice shelves and onto thicker glaciers. They consist of cliffs sometimes 100 feet tall, but the birds manage to scale them to reach their goal.

Lead author Peter Fretwell, from the British Antarctic Survey said, “We thought that in years when the sea ice was bad, they just didn’t breed, but they’re clearly more adaptable than that.”

The emperor species is the most southerly Antarctic breed of penguin and only breed on seasonal sea ice. The patterns of these in the recent years has caused the emperor penguin to be placed as “near threatened” on the IUCN Red List.

“When they go out from the colony to forage, they go down the steep cliff – the shortest route to the sea. We’re not sure how they get down – they may slide down or jump down. But this cliff is too steep for them to climb back up and so they must return a different way, likely through an ice creek. This route is 5km longer and we know they take it because we can see their tracks in the satellite pictures,” Fretwell told BBC News.

“These charismatic birds tend to breed on the sea ice because it gives them relatively easy access to waters where they hunt for food. Satellite observations captured of one colony in 2008, 2009 and 2010 show that the concentration of annual sea ice was dense enough to sustain a colony. But this was not the case in 2011 and 2012 when the sea ice did not form until a month after the breeding season began. During those years the birds moved up onto the neighbouring floating ice shelf to raise their young,” explained Fretwell in a separate statement.

He added, “What’s particularly surprising is that climbing up the sides of a floating ice shelf – which at this site can be up to [100 feet] high – is a very difficult manoeuvre for emperor penguins. Whilst they are very agile swimmers they have often been thought of as clumsy out of the water.”

Gerald Kooyman, of the Scripps Institution said: “Without satellite imagery these moves onto shelf ice would not have been detected. It is likely that there are other nuances of the emperor penguin environment that will be detected sooner through their behaviour than by more conventional means of measuring environmental changes.”

“These new findings are an important step forward in helping us understand what the future may hold for these animals. However, we cannot assume that this behaviour is widespread in other penguin populations,” Barbara Wienecke, of the Australian Antarctic Division, said in a statement, as cited by the Daily Mail.

“The ability of these four colonies to relocate to a different environment – from sea ice to ice shelf – in order to cope with local circumstances, was totally unexpected. We have yet to discover whether or not other species may also be adapting to changing environmental conditions,”Wienecke added.

Four colony sites were focused on: Barrier Bay, the Jason Peninsula, Ruppert Coast and Nickerson Ice Shelf. The images and data gathered were analyzed to identify the terrain and track the movement of the colony of penguins.

Production Process Changes Make Faster Thin-Film Organic Transistors

redOrbit Staff & Wire Reports – Your Universe Online

Research teams from a pair of US universities have joined forces to develop the world’s fastest thin-film organic transistors, demonstrating that this type of experimental semiconductor technology could become the foundation for low-cost high-resolution television screens and similar electronic devices.

The developers, who hail from the Stanford School of Engineering and the University of Nebraska-Lincoln (UNL), explained in Wednesday’s edition of the journal Nature Communications how they created thin-film organic transistors capable of operating five-times more quickly than previous models.

Engineers from all over the world have been attempting to create organic semiconductors capable of performing high-speed electronic operations using inexpensive, carbon-rich molecules and plastics. The study authors used a new process to create organic thin-film transistors comparable to those found in curved-screen televisions, then altered the basic organic transistor development process in order to achieve their speed boost.

“Typically, researchers drop a special solution, containing carbon-rich molecules and a complementary plastic, onto a spinning platter – in this case, one made of glass. The spinning action deposits a thin coating of the materials over the platter,” the California-based university explained in a statement.

However, Stanford professor of chemical engineering Dr. Zhenan Bao, UNL assistant professor of mechanical and materials engineering Dr. Jinsong Huang, and their colleagues made key changes to this process: they spun the platter faster, and coated a smaller portion of the spinning surface — roughly equal to the size of a postage stamp.

“These innovations had the effect of depositing a denser concentration of the organic molecules into a more regular alignment. The result was a great improvement in carrier mobility, which measures how quickly electrical charges travel through the transistor,” the university said.

The process, which Dr. Bao and Dr. Huang have dubbed “off-center spin coating,” is still experimental. Currently, the engineers are unable to precisely control the alignment of organic materials in their transistors, and they have not been able to achieve uniform carrier mobility.

Even so, their technique was able to produce transistors “with a range of speeds far above those of previous organic semiconductors and comparable to the performance of the polysilicon materials used in today’s high-end electronics,” the researchers said.

Future refinements to the process could allow them to create inexpensive, high-performance electronics constructed on transparent substrates such as glass and plastics, which are flexible and transparent. Despite being at an experimental stage, their organic electronics are already 90 percent transparent to the naked eye.

The research was funded by the US Defense Advanced Research Projects Agency (DARPA), the Air Force Office of Scientific Research and the National Science Foundation (NSF).

Other members of the development team include UNL postdoctoral associate Yongbo Yuan, Stanford graduate assistant in chemical engineering Gaurav Giri and Alex Ayzner, a postdoctoral researcher at the Stanford Synchrotron Radiation Lightsource.

Placebo Effect Enhances Effects Of Real Migraine Drug

redOrbit Staff & Wire Reports – Your Universe Online
A new study of migraine sufferers is the latest to demonstrate the remarkable power of the placebo effect, finding that what a doctor tells you when prescribing medicine can influence your body’s response to it. The study, published Wednesday in the journal Science Translational Medicine, compared the effects of the common migraine drug Maxalt (rizatriptan) to an inactive placebo (sugar pill) in 66 sufferers of chronic migraine headaches, a condition whose symptoms include throbbing headaches, nausea, vomiting and sensitivity to light and sound.
The researchers from Harvard Medical School and Beth Israel Deaconess Medical Center (BIDMC) in Boston found that study participants reported relief from the placebos even when they knew they were taking them.
Interestingly, the researchers also found a ‘reverse-placebo’ effect, whereby patients who believed they were getting the placebo found that the real drug did not work as well as it should have.
The so-called ‘placebo effect‘ is a powerful, effective medical treatment and has been found to help treat or reduce the symptoms of a wide variety of conditions such as irritable bowel syndrome (IBS), depression, anxiety, ADHD, restless leg syndrome and others.
However, the current study is the first to quantify how much pain relief is attributed to a drug’s pharmacological effect, and how much to a placebo effect, and demonstrates that a positive message and a powerful medication are both important for effective clinical care.
The study uncovered three key findings: 1) the benefits of Maxalt increased when patients were told they were receiving an effective drug for the treatment of acute migraine; 2) when the identities of Maxalt tablets and placebo pills were switched, patients reported similar reductions in pain from placebo pills labeled as Maxalt as from Maxalt tablets labeled as placebo; and 3) study participants reported pain relief even when they knew the pill they were receiving was a placebo, compared with no treatment at all.
“One of the many implications of our findings is that when doctors set patients’ expectations high, Maxalt [or, potentially, other migraine drugs] becomes more effective,” said Rami Burstein, PhD, the study’s senior author and Director of Pain Research in the Department of Anesthesia, Critical Care and Pain Medicine at BIDMC.
“Increased effectiveness means shorter migraine attacks and shorter migraine attacks mean that less medication is needed,” he said.
“This study untangled and reassembled the clinical effects of placebo and medication in a unique manner,” said the study’s other senior author, Ted Kaptchuk, Director of the Program in Placebo Studies and Therapeutic Encounter (PiPS) at BIDMC and Harvard Medical School.
“Very few, if any, experiments have compared the effectiveness of medication under different degrees of information in a naturally recurring disease. Our discovery showing that subjects’ reports of pain were nearly identical when they were told that an active drug was a placebo as when they were told that a placebo was an active drug demonstrates that the placebo effect is an unacknowledged partner for powerful medications,” Kaptchuk said.
The researchers studied over 450 attacks in the 66 participants. After an initial “no treatment” episode in which patients documented their headache pain and accompanying symptoms 30 minutes after headache onset, and again two hours later (2.5 hours after onset), the participants were provided with six envelopes containing pills to be taken for each of their next six migraine attacks.
Of the six treatments, two were made with positive expectations (envelopes labeled “Maxalt”), two were made with negative expectations (envelopes labeled “placebo”), and two were made with neutral expectations (envelopes labeled “Maxalt or placebo”). In each of the three situations – positive, negative or neutral – one of the two envelopes contained a Maxalt tablet while the other contained a placebo, no matter what the label actually indicated. The patients then documented their pain experiences in the same manner as they had initially in the no-treatment session.
The results consistently showed that giving the pills accompanied by positive information incrementally boosted the efficacy of both the active migraine medication and the inert placebo.
“When patients received Maxalt labeled as placebo, they were being treated by the medication – but without any positive expectation,” Burstein said.
“This was an attempt to isolate the pharmaceutical effect of Maxalt from any placebo effect.”
Conversely, the inert placebo labeled as Maxalt was an attempt to isolate the impact of the placebo effect from pharmaceutical effect.
“Even though Maxalt was superior to the placebo in terms of alleviating pain, we found that under each of the three messages, the placebo effect accounted for at least 50 percent of the subjects’ overall pain relief. When, for example, Maxalt was labeled ‘Maxalt,’ the subjects’ reports of pain relief more than doubled compared to when Maxalt was labeled ‘placebo.’ This tells us that the effectiveness of a good pharmaceutical may be doubled by enhancing the placebo effect,” said Kaptchuk.
The researchers were surprised to find that even when subjects were given a clearly labeled placebo, they reported pain relief when compared with no treatment.
“Contrary to conventional wisdom that patients respond to a placebo because they think they’re getting an active drug, our findings reinforce the idea that open label placebo treatment may have a therapeutic benefit,” wrote the study’s authors.
The researchers said the study’s findings suggest that placebos may someday provide a therapeutic boost to drug treatments, although further research is needed to explore how this is best applied in clinical care settings.

CES 2014: New Sleep Number Bed Takes Snoring Out Of The Equation

Brett Smith for redOrbit.com – Your Universe Online

Sometimes a snoring sleeping partner requires a little nudge to stop them from ruining your sleep, but what if a little shove isn’t enough? The latest Sleep Number bed may have you covered, as the new x12 model has a Partner Snore button that raises the head of the offending sleeper’s side of the bed.

That button is just one of many new features in the new $8,000 bed. In addition to having the adjustable firmness feature that made Sleep Number famous, the new model boasts extensive sleep monitoring features such as tracking heart and breathing rates. The bed can also track the movements of an entire body to determine sleep quality, instead of simply tracking wrist movement as some wearable devices do.

The bed can gather sleep data from two different people and send it to an iOS app that reports each night’s sleeping performance.

“Too much lately we don’t get enough sleep,” company spokesman Pete Bils told BBC News‘ Dave Lee. “That places a premium on the quality of sleep that we get.”

The new Sleep Number bed was debuted at the Consumer Electronics Show in Las Vegas this week, but it wasn’t the only sleep-oriented device on display this year. The French company Withings also showed off a sleep monitoring system called Aura.

“You spend about a third of your life in bed,” said Withings spokesperson Alain Amador. “As of now we’ve only done tracking, but nothing to help you go to sleep and wake up.”

The Aura system’s most prominent element is a smart lamp that plays some relaxing sounds and emits a soft, red light into the room at bedtime. The company says the color has been scientifically proven to stimulate the body’s release of melatonin, a sleep-inducing hormone. In the morning, the lamp emits a blue light, which is supposed to suppress the secretion of melatonin – encouraging the user to wake up alert.

The system also uses a sensor pad placed under the mattress to record when a user is moving around the most, so the lamp can switch from red to blue at the optimal time.

Another CES product, SleepPhones, are a music-playing headband, described as “pajamas for your ears”, while Lighting Science’s Good Night light bulb is supposed to filter out the light waves that “get in melatonin’s way.”

While some of these products may have the faint aroma of snake oil about them, Brian Blau, an analyst with information technology research and advisory firm Gartner, said the products should be credited for highlighting a long-neglected problem, low sleep quality.

“In the medical field, to diagnose your sleep problems you need to go to a special facility and be there for multiple nights,” he said. “So, maybe these consumer sleep products can help people with issues they have.”

One interesting product, not at CES, takes sleep-oriented technology in a completely different direction. The Remee sleep mask is said to increase the frequency of lucid dreams, dreams where you’re conscious of the fact that you are dreaming. Lucid dreamers are said to have the power to control their own dreams.

Black Hole Consumes Star In Dwarf Galaxy

[ Watch the Video: A Tour of Galaxy Cluster Abell 1795 ]

Lee Rannals for redOrbit.com – Your Universe Online

NASA’s Chandra X-ray Observatory has helped astronomers witness the first event of a black hole destroying a star in a dwarf galaxy.

Two independent studies using data from Chandra and other telescopes have led scientists to believe they have found what appears to be a star being consumed by a black hole.

“We can’t see the star being torn apart by the black hole,” Peter Maksym of the University of Alabama in Tuscaloosa, Ala., who led one of the studies, said in a statement. “But we can track what happens to the star’s remains, and compare it with other, similar events. This one fits the profile of ‘death by a black hole.’”

When a star wanders too close to a black hole, it begins to get ripped apart by extreme tidal forces. As the debris falls toward the black hole, an intense X-radiation is produced as the debris is heated to millions of degrees. The X-rays would diminish in a characteristic manner as hot gas spirals inward.

The newly discovered episode of black-hole-induced violence is different because it has been associated with a dwarf galaxy. This object is located in the galaxy cluster Abell 1795, which sits about 800 million lights years away from Earth. The dwarf galaxy contains about 700 million stars, compared to the Milky Way which carries between 200 and 400 billion stars.

The black hole in the dwarf galaxy could be a few hundred thousand times as massive as the sun, making it ten times less massive than our galaxy’s supermassive black hole. This means that this object would be classified as an “intermediate mass black hole.”

“Scientists have been searching for these intermediate mass black holes for decades,” Davide Donato of NASA’s Goddard Space Flight Center (GSFC) in Greenbelt, Md., who led a separate team of researchers, said in a statement. “We have lots of evidence for small black holes and very big ones, but these medium-sized ones have been tough to pin down.”

Chandra observed Abell 1795 regularly to help calibrate its instruments, so researchers had an unusually large reservoir of data to sift through for the two studies.

“We are very lucky that we had so much data on Abell 1795 over such a long period of time,” Donato’s co-author Brad Cenko, also of GSFC, said in a statement. “Without that, we could never have uncovered this special event.”

Papers describing the research have been published in the Monthly Notices of the Royal Astronomical Society and The Astrophysical Journal.

Study Highlights Snowball Effect Of Overfishing

Florida State University researchers have spearheaded a major review of fisheries data that examines the domino effect that occurs when too many fish are harvested from one habitat.

The loss of a major species from an ecosystem can have unintended consequences because of the connections between that species and others in the system. Moreover, these changes often occur rapidly and unexpectedly, and are difficult to reverse.

“You don’t realize how interdependent species are until it all unravels,” said Felicia Coleman, director of the Florida State University Coastal and Marine Laboratory and a co-author on the study.

Coleman and her co-authors, led by FSU biological science Professor Joseph Travis, examined case studies of several distressed ecosystems that had been thoroughly changed over the years because of overfishing.

For example, in the Northern Benguela ecosystem off Namibia, stocks of sardine and anchovy collapsed in the 1970s from overfishing and were replaced by bearded goby and jellyfish. But the bearded goby and jellyfish are far less energy-rich than a sardine or anchovy, which meant that their populations were not an adequate food source for other sea animals in the region such as penguins, gannets and hake, which had fed on the sardines and anchovies.  African penguins and Cape gannets have declined by 77 percent and 94 percent respectively. Cape hake and deep-water hake production plummeted from 725,000 metric tons in 1972, to 110,000 metric tons in 1990. And the population of Cape fur seals has fluctuated dramatically.

“When you put all these examples together, you realize there really is something important going on in the world’s ecosystems,” Travis said. “It’s easy to write off one case study. But, when you string them all together as this paper does, I think you come away with a compelling case that tipping points are real, we’ve crossed them in many ecosystems, and we’ll cross more of them unless we can get this problem under control.”

The full study appears in the Dec. 23 issue of “Proceedings of the National Academy of Sciences. ”

Travis, Coleman and their colleagues are hoping that their research will accelerate changes in how fisheries scientists approach these ecosystem problems and how fisheries managers integrate system issues into their efforts.  They hope that more effort will be devoted to understanding the key linkages among species that set up tipping points in ecosystems and that managers look for data that can show when a system might be approaching its tipping point.

“It’s a lot easier to back up to avoid a tipping point before you get to it than it is to find a way to return once you’ve crossed it,” Travis said.

Fishing experts do generally understand how overfishing affects other species and the ecosystem as a whole, but it “needs to be a bigger part of the conversation and turned into action,” Coleman said.

Travis and Coleman were joined in their research by eight other scientists from the University of Connecticut, University of California-Berkeley, University of California-Santa Cruz, University of Chicago, University of North Carolina at Chapel Hill, University of Maine and Centre de Recherche Halieutique Méditerranéenne et Tropicale in France.

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Microbe Community Changes May Reduce Amazon’s Ability To Lock Up Carbon Dioxide

UT Arlington researchers focusing on the Amazon recently found that widespread conversion from rainforest to pastureland has significant effects on microorganism communities that may lead to a reduction in the region’s role as a reservoir for greenhouse gas.

The Amazon rainforest is the largest terrestrial reservoir or “sink” for carbon dioxide, a gas that has been linked to climate change. Through photosynthesis, the Amazon absorbs 1.5 billion tons of carbon dioxide from the atmosphere every year in a process that requires input of nitrogen. That nitrogen, for the most part, comes from a process called nitrogen fixation – essentially microbes pulling nitrogen form the air into the soil.

The new paper, featured in the January issue of Applied and Environmental Microbiology, looks for the first time at the reaction of free-living nitrogen-fixing microorganisms called diazotrophs to the deforestation. Jorge Rodrigues, an assistant professor of biology at The University of Texas at Arlington, organized the work. Babur S. Mirza, formerly a postdoctoral fellow in the Rodrigues lab, is the paper’s lead author.

“This study shows that although the diversity of diazotrophic microorganisms remains the same with the conversion from forest to pasture, the types of species found are different,” said Rodrigues. “Our next step is to measure how the rates of biological nitrogen fixation are influenced by community changes. Because the carbon and nitrogen cycles are so strongly linked, our previous results indicated that changes in carbon dioxide sequestration will occur”

Rodrigues’ team gathered samples of soil from the Fazenda Nova Vida site in Rondonia, Brazil, one of three states in the country that accounted for more than 85 percent of deforestation from 1996 to 2005. They analyzed soil from a primary forest, a pasture established in 2004 and a secondary forest that resulted from the abandonment of a pasture in 1999.

The team used DNA analysis, specifically the nifH gene that is characteristic of diazotrophs, to measure the communities in the samples.

Rodrigues said researchers were surprised to find a ten-fold increase in the number of diazotrophic microorganisms in the pasture established in 2004, when compared to the primary forests. They theorize the pasture ecosystems rely on the diazotrophs more for nitrogen because of the continuous grazing from cattle, requiring constant regrowth of grasses.

“We observed a complete shift in the diazotrophic microbial community composition in response to the Amazon rain forest conversion to a pasture,” Mirza said. “These differences an be attributed to the shift in the above ground plant community because we did see partial recovery of diazotroph community composition in the secondary forest, which have more plant species as compared to pasture.”

Mirza said researchers are continuing their work with more more sophisticated sequencing technologies and in-depth sampling.

Other co-authors on the new paper include Chotima Potisap, a visiting Ph.D. student from Khon Kaen University in Thailand; Klaus Nüsslein, professor of microbiology at the University of Massachusetts; and Brendan J.M. Bohannan, professor at the Institute of Ecology and Evolution, University of Oregon.

The paper is titled “Response of Free-Living Nitrogen Fixing Microorganisms to Land Use Change in the Amazon Rainforest” and is available online here:  http://aem.asm.org/content/early/2013/10/21/AEM.02362-13.full.pdf+html.

Despite worries about the effect these changes to the microbial communities may have on the carbon cycle, Rodrigues said there are some encouraging results. After pastures were abandoned and a secondary forest grew, partial restoration of the original diazotrophic communities was achieved, researchers said.

Growth of secondary forest is ongoing for about 50 percent of the abandoned pastures in the Amazon, but more needs to be done to encourage secondary forests and limit deforestation in the first place, Rodrigues said.

“There is still time to recover if we act now,” he said.

An Agriculture and Food Research Initiative grant from the U.S. Department of Agriculture supported the work detailed in the paper.

The University of Texas at Arlington is a comprehensive research institution of more than 33,300 students and 2,300 faculty members in the epicenter of North Texas. It is the second largest institution in The University of Texas System. Total research expenditures reached almost $78 million last year. Visit www.uta.edu to learn more.

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An Avocado At Lunch Helps Curb Those Afternoon Cravings

Lee Rannals for redOrbit.com – Your Universe Online

Adding a little avocado to your lunch not only adds some extra nutrition, but it also may reduce the desire to keep on snacking, according to a new study. Researchers writing in the Nutrition Journal found that adding one-half of a fresh avocado to a lunch helped reduce people’s desire to eat between meals.

The study compared the effects of incorporating fresh avocado into a lunch to determine how it could influence satiety, blood sugar and insulin response and later food intake. Researchers found 26 healthy, overweight adults to participate in the study, some of which added half a fresh avocado to their lunch.

Fresh Hass avocados like the ones used in the study contain three grams of total carbohydrates, less than a gram of natural sugar per one ounce serving and contribute 8 percent of the daily value for fiber.

According to the findings, those who had avocado with their lunch reported a significantly decreased desire to eat, by 40 percent over a three-hour period, and by 28 percent over a five-hour period after the meal. This group of participants also reported increased feelings of satisfaction by 26 percent over the three hours following the meal.

“Satiety is an important factor in weight management, because people who feel satisfied are less likely to snack between meals,” said Joan Sabaté, MD, DrPH, Chair of the Department of Nutrition who led the research team at Loma Linda University.

“We also noted that though adding avocados increased participants’ calorie and carbohydrate intake at lunch, there was no increase in blood sugar levels beyond what was observed after eating the standard lunch. This leads us to believe that avocados potential role in blood sugar management is worth further investigation.”

The researchers said that the avocado contained an additional 112 kcal, which may have accounted for the observed increase in satisfaction and decreased desire to eat.

The team said that more research is still needed to help determine whether the study’s results can be applied to adults with varying BMI and among insulin resistant individuals. However, the findings offer a good basis for future research in how avocados effect satiety, glucose and insulin response.

“These research findings provide support for the emerging benefits of avocados,” Nikki Ford, PhD, Director of Nutrition at the Hass Avocado Board (HAB), said in a statement. “These results further complement our research efforts in weight management and diabetes as well as our continued work to explore the many benefits that fresh avocados have to offer when consumed in everyday healthy eating plans.”

Since First Surgeon General Report On Tobacco Products 50 Years Ago, Tighter Government Regulations Have Saved Countless American Lives

Gerard LeBlond for www.redorbit.com – Your Universe Online

The first Surgeon General’s Report about smoking and its health risks was issued in 1964. This year marks its 50th anniversary. Since then, much progress has been made, with the number of adults smoking being cut by half. However, the use of tobacco products is still the number one cause of disabilities and death in the country.

According to a study published January 7, 2014 in the Journal of the American Medical Association (JAMA), the 1964 report by the Surgeon General that featured tobacco’s effect on health, as well as tobacco control, has helped eight million people extended their lives 20 years.

David T. Levy, PhD, from Georgetown Lombardi Comprehensive Cancer Center, and the senior author of the study says, “The report and subsequent tobacco control efforts represent the most dramatic and successful public health campaign in modern history, in terms of benefit to the entire population.”

He added, “In 1964, more than 40 percent Americans [sic] adults smoked, and now, 50 years later, less than 20 percent use cigarettes. Our research suggests that this dramatic reduction is due to the 1964 Surgeon General’s report and the tobacco control activity that followed. While this is a significant public health achievement, we have much more to do — smoking continues to be the leading contributor to the nation’s death toll.”

In the past 50 years, an estimated 17.6 million smoking-related deaths have occurred, with 6.6 million of them occurring in people below the age of 65, according to the researchers.

The study was led by Theodore Holford, PhD, of Yale School of Public Health, along with others from the University of Michigan and the Fred Hutchinson Cancer Research Center.

The study involved examining smoking patterns up through 1964, then using those statistics to determine what most likely would have happened if there was no tobacco control or warning labels on cigarette packages. They compared the estimated deaths in the study to actual deaths and found that an estimated 157 million years of life were saved. Approximately 5.3 million of the lives saved were in men and 2.7 million were in women.

“An estimated 31 percent of premature deaths were avoided by this effort, but even more encouraging is the steady progress that was achieved over the past half-century, beginning with a modest 11 percent in the first decade to 48 percent of the estimate what we would have seen from 2004 to 2012 in the absence of tobacco control,” said Holford.

“Today, a 40-year-old man can expect on average to live 7.8 years longer than he would have in 1964, and 30 percent of that improvement can be attributed to tobacco control. The gains for women have been slightly less, 5.4 years, but tobacco control accounts for 29 percent of that benefit.”

Tobacco control, consisting of warnings and higher cost per packs, have contributed to reduced smoking among adults.

Although the percentage of smokers has decreased, the number of cigarette smokers has increased worldwide due to the increase in population, according to the study.

The study revealed that smoking among women decreased by 42 percent, and among men by 25 percent between 1980 and 2012. Four countries — Canada, Iceland, Mexico and Norway — have reduced smoking in both men and women by over 50 percent since 1980.

Dr. Christopher Murray, who is the director of the Institute for Health Metrics and Evaluation (IHME) said, “Despite the tremendous progress made on tobacco control, much more remains to be done. We have the legal means to support tobacco control, and where we see progress being made we need to look for ways to accelerate that progress. Where we see stagnation, we need to find out what’s going wrong.”

The study found that more than six trillion cigarettes are smoked around the world and in 75 countries an average of 20 cigarettes per day were lit up by each smoker in 2012.

“Tobacco control is particularly urgent in countries where the number of smokers is increasing,” said Alan Lopez, Laureate Professor at the University of Melbourne. “Since we know that half of all smokers will eventually be killed by tobacco, greater numbers of smokers will mean a massive increase in premature deaths in our lifetime.”

“Although in several countries substantial uncertainty remains in monitoring tobacco exposure and estimating the disease burden associated with it, there can be no doubt that both are large. Policies and strategies to improve global health must include comprehensive efforts to control tobacco use, as envisaged under the Framework Convention on Tobacco Control. But implementation of policies is not enough; countries, and the global health community, need to collect timely, reliable, and detailed information on the effect of those policies, particularly among vulnerable populations and those being directly targeted by the tobacco industry. If global tobacco control is to benefit from concerted policy action, population-level surveillance of tobacco use and its health effects needs to be strengthened and routinely used to evaluate the impact of tobacco control strategies,” the authors write.

The 1964 tobacco report was released by then Surgeon General Luther Terry. He started a committee who reviewed 7,000 scientific articles and worked alongside more than 150 consultants to gather information for his report. The time of the report’s release — which was on a Saturday — was to gain maximum media coverage for Sunday newspapers. He later referred to the report as a “bombshell.”

The original report sparked levels of the government and businesses to initiate efforts to control smoking. Some of them include, warning labels on cigarette packages, increased taxes, advertising restrictions, limit public smoking areas and products and programs to help people stop smoking.

Promising Antidepressant Ketamine Works By Giving Quick Seratonin Boost, Says New Study

Rebekah Eliason for redOrbit.com – Your Universe Online

A new study revealed that the drug ketamine, a potent anesthetic used in human and veterinary medicine and as an illegal recreational drug, is a potential candidate for fast treatment of depression for individuals who do not respond to other types of medications.

From the RIKEN Center for Life Science Technologies in Japan, new research using PET imaging studies has demonstrated that ketamine increases the activity level of serotonergic neurons in brain areas that regulate motivation in macaque monkeys. Researchers concluded that the effects of ketamine on serotonin, often referred to as the ‘feel-good neurotransmitter,’ could provide an explanation for its effects as an antidepressant in humans.

This new study utilizes Positron Emission Tomography (PET) molecular imaging and demonstrates that this technique may be a useful in diagnosing major depressive disorder in humans and in developing new antidepressants.

Recently, ketamine was found to act as an antidepressant with short onset and long-term duration among patients suffering from treatment-resistant major depressive disorder. The typical treatment for major depressive disorder includes selective serotonin reuptake inhibitors (SSRIs), monoamine oxidase inhibitors and tricyclic antidepressants.

The mechanism behind ketamine’s effect on the depressive brain is still unclear. In this study, Dr. Hajime Yamanaka and Dr. Hirotaka Onoe designed a PET imaging method on conscious non-human primates to understand the effects of ketamine on the serotonergic system in the brain. Along with an international team, they performed the PET study on rhesus monkeys.

The researchers performed a PET imaging study on four rhesus monkeys. Two types of molecules known as tracer molecules were used because they bind almost exclusively to the serotonin 1B receptor 5-HT1B and the serotonin transporter.

Analysis of the images generated by the PET scans enabled the researchers to determine that ketamine causes increased binding of serotonin to its receptor 5-HT1B in the nucleus accumbens and ventral pallidum. It also causes decreased binding to the transporter SERT in the same brain regions. Both the nucleus accumbens and ventral pallidum are brain regions which are associated with motivation and are closely related to depression.

Additionally, the researchers discovered that using the drug NBQX, which is known to obstruct the antidepressive effects of ketamine in rodents, cancels the effect of ketamine on the serotonin receptor but not on the SERT transporter.

Combining this information, researchers were able to determine the mechanism for ketamine is possibly caused by an increase in the expression of receptors that is mediated by the glutamate AMPA receptor.

The team’s study was published this week in the journal Translational Psychiatry.

Dieters Beware: Weight Loss Products May Use Deceptive Marketing

April Flowers for redOrbit.com – Your Universe Online

Most New Year’s resolutions include wanting to become healthier, or to lose weight. There are literally thousands of products out there claiming that they can help a person achieve those goals. Not all of them tell the truth, nor do they have ethical practices when advertising.

This week, the Federal Trade Commission (FTC) announced a “law enforcement initiative stopping national marketers that used deceptive advertising claims to peddle fad weight-loss products, from food additives and skin cream to dietary supplements,” along with a $34 million dollar settlement with four companies accused of using deceptive advertising practices.

According to Alison Young of USA Today, the FTC says the companies lured consumers with promises of easy weight-loss.

However, “the chances of being successful just by sprinkling something on your food, rubbing cream on your thighs, or using a supplement are slim to none,” said Jessica Rich, director of the FTC’s consumer protection bureau. “The science just isn’t there.”

The FTC initiative, called “Operation Failed Resolution,” was aimed at stopping misleading claims for products promoting easy weight loss and slimmer bodies.

The four companies in question are Sensa, L’Occitane, LeanSpa, and HCG Diet Direct. All four have been required to drop unsubstantiated claims from their ads, as well as refunding money to customers, according to Diane Bartz of Reuters.

* Sensa made claims that sprinkling its product over food would help customers lose weight without diet or exercise. The FTC charges that the claims are unfounded by scientific studies and the company used misleading endorsements. Sensa, which has had US sales of over $364 million, will pay $26.5 million to its customers. The FTC will also bar the company, its CEO Adam Goldenberg, and creator Alan Hirsh from making weight-loss claims about any dietary supplement, food or drug unless they have two adequate and well-controlled human clinical studies.

* L’Occitane marketed two skin creams, promising that they had “clinically proven slimming effectiveness” and would “visibly reduce the appearance of cellulite.” According to the FTC, these claims were completely without scientific backing. The company will pay $450,000 in reimbursements to customers.

* LeanSpa used fake news sites to promote the acai berry and weight-loss “colon cleanse” supplements. LeanSpa was shut down by the FTC and the state of Connecticut in 2011. Boris Mizhen and his wife Angelina Strano, along with three companies he controls, will surrender over $7 million in cash and real estate in a partial settlement. The FTC is still pursuing lawsuits against other defendants.

* HCG Diet Direct marketed “liquid drops of a hormone called human chorionic gonadotropin, which is produced by the human placenta and found in the urine of pregnant women,” according to the Washington Post. The FTC calls this an “unproven human hormone that has been touted by hucksters for more than half a century as a weight-loss treatment.” The FTC won a $2 million settlement against HCG Diet Direct, but the judgment has been suspended due to the company’s inability to pay.

This is not the first time the FTC has taken action against marketers of weight-loss products.

“We do like to periodically bring new cases and new sweeps, both to deter conduct by companies in this area and also remind consumers about the fact that many of the claims in this area are not accurate, and they should be wary of those,” Rich said.

She also stated that media organizations need to do more screening for, and reject deceptive advertisements. The FTC will be sending letters to 75 publishers, broadcasters and media trade groups asking that their staffs be educated on how to spot bogus claims. The agency has also created a “Gut Check” website that will have updated guidance to identify seven weight-loss marketing claims that evidence show are never true.

Chinese Consumers View Starbucks As Status Symbol

Lee Rannals for redOrbit.com – Your Universe Online

Chinese consumers view Starbucks as a symbol of class status rather than just a place to get your morning pick-me-up.

University of Leicester researchers conducted a study to investigate Chinese attitudes towards western brands, specifically looking at Starbucks.

In 2007, a Starbucks store in Beijing’s Forbidden City closed down after a campaign protested that the presence of the café was tarnishing Chinese culture in the area. Although this protest resulted in a branch closing, the latest study reveals that Starbucks is still a significant asset for Chinese consumers, rather than a liability.

Starbucks has expanded across China since it first opened a store there in 1999. To date, there are more than 400 Starbucks outlets currently open in China.

According to the findings published in Journal for the Study of Race, Nation and Culture, Chinese middle-class consumers view Starbucks as a high class status product, allowing them to feel that they are truly international.

“Consuming at Starbucks offers more than a cup of coffee to the urban Chinese middle class. It is an instrument to demonstrate their status — both their social class and more subjective characteristics, such as being modern, international or fashionable,” stated Dr Jennifer Smith Maguire, a senior lecturer in cultural production and consumption at the School of Management at the University of Leicester.

The team conducted in-depth interviews with 20 members of the Chinese urban middle-class, including entrepreneurs, professionals and civil servants. The researchers looked into the strategies and cues respondents use to understand and authenticate Starbucks as a foreign brand, as well as looked at the socio-cultural context for engagements with the brand as a symbol of status. They also studied how respondents used Starbucks as a bridge to try and experience a Western way of life.

“We suggest that these findings highlight the role of foreign brands – and consumer goods more generally – in the problems of individual and collective identity formation,” the team wrote in the journal.

A 48-year-old Chinese middle-class man interviewed as part of the study admitted that Starbucks’ coffee flavor isn’t the main reason he goes to get his drink on.

“Starbucks coffee is good! But coffee is not the most important factor for me to go to Starbucks. Most of the Starbucks consumers belong to the upper class or middle class. Sitting in Starbucks should be regarded as a business card in order to show my taste and status,” the Chinese man said.

The researchers said a 28-year-old woman told them that because today’s market has a lot of fake products, she goes to trustworthy brands.

“Foreign-made products are better than domestic products in terms of quality or taste,” the woman said.

Another interviewee for the study said that going to Starbucks feels like becoming international, partly because so many foreigners are sitting there too.

Dissecting Diets – Expert Panel Ranks DASH Diet First, Paleo Last

[ Watch the Video: Best Diets Rated – DASH Takes Top Spot ]
Lee Rannals
for redOrbit.com – Your Universe Online

U.S. News & World Report published its fourth annual Best Diets rankings this week, ranking DASH Diet as best and the Paleo Diet as dead last. The latest Best Diets ranking includes a collection of 32 in-depth analyses, reviewed by a panel of nutrition and health experts. In order for a diet to make the top of the list, it has to be relatively easy to follow, nutritious, safe, effective for weight loss and protective against diabetes and heart disease.
The Dietary Approaches to Stop Hypertension, or DASH diet, topped the list, outscoring both the TLC Diet and the much vaunted Mediterranean diet. This diet was developed to help fight high blood pressure, but has also shown nutritional completeness, safety, ability to prevent or control diabetes, and a strong role in heart health. This diet may not be the best for weight loss, but it does provide great nutrition and a healthy heart.
The DASH diet essentially emphasizes foods like fruits, vegetables, whole grains, lean protein and low-fat dairy. It also requires participants to shun things like high-calorie and high-fat sweets and red meat. Finally, the DASH diet says participants should cut back on salt.
The Therapeutic Lifestyle Changes (TLC) diet took second place on the rankings. This diet was created by the National Institutes of Health (NIH) and is particularly good at promoting cardiovascular health. This diet works by asking people to choose a target calorie level, cut saturated fat to less than seven percent of daily calories and consume no more than 200 milligrams of dietary cholesterol per day, which is about two ounces of cheese.
Weight Watchers took home the prize for the best weight-loss diet, while the Biggest Loser diet was tied for second place along with the Jenny Craig diet and Raw food diet. Weight Watchers assigns every food a points value, based on its protein, carbohydrate, fat, fiber, calories and how hard your body has to work to burn it off. This diet also won the award for the easiest diet to follow. Experts say that this diet has been proven to help people lose weight and keep it off.
The Paleo Diet first rose to popularity in the 1970s by asking people to follow a diet similar to what our ancestors in the Paleolithic era 2.6 million to 10,000 years ago would have eaten. People following this diet are asked to eat like hunter-gatherers, consuming lots of produce and animal protein while steering clear of processed sugar, grains, legumes and dairy.
The caveman diet was the most searched term on Google in 2013, but the latest ranking shows it falls dead last in both overall health and weight-loss. Experts say the diet was too restrictive for people to follow long-term and that it limited some essential nutrients. While the idea of eating like our ancestors seems attractive to some, the authors of the new report suggest sticking to modern-day diets like DASH, TLC and Mediterranean instead.

College Students Discover Rare Binary Asteroid

[ Watch the Video: Binary Asteroid System Discovered ]

Brett Smith for redOrbit.com – Your Universe Online

An undergraduate astronomy class for non-astronomy majors at the University of Maryland has made a rare discovery that was completely overlooked by professional scientists: a pair of asteroids that orbit and regularly eclipse each other located in the main asteroid belt between Mars and Jupiter.

There are currently fewer than 100 known eclipsing binary asteroids and the student’s discovery will be presented on Tuesday at the 223rd meeting of the American Astronomical Society in National Harbor, Md.

“Actually contributing to the scientific community and seeing established scientists getting legitimately excited about our findings is a very good feeling,” said Terence Basile, a cell biology major at from Beltsville, Md.

“This is a fantastic discovery,” said Drake Deming, a University of Maryland astronomer who was not involved with the class. “It provides an unprecedented opportunity to learn about the physical properties and orbital evolution of these objects.”

The dual asteroids, collectively known as 3905 Doppler, are just one object from hundreds of thousands in our solar system’s main asteroid belt between Mars and Jupiter. The object was first discovered in 1984, but given little thought over the following decades. In September 2013, students in Dr. Melissa Hayes-Gehrke’s astronomy class picked it and two other asteroids to observe because they were easy to see in the autumn sky and somewhat mysterious.

Over the course of four nights in October, four-person student teams tracked and photographed the asteroids with a privately-owned telescope in Nerpio, Spain, which was controlled remotely over the Internet. The main goal of the assignment was to capture changes in the brightness of each asteroid’s reflected light.

These images were then used to create a light curve, or graph of an object’s light intensity over time. Changes in brightness are often the result of the object’s shape, with asymmetrical objects having a range of brightness and symmetrical objects producing a constant intensity. After finding the time between maximum light intensities, scientists can determine how fast an asymmetrical object is rotating.

When the two teams studying 3905 Doppler created its lightcurve, they discovered that the asteroid’s light sometimes faded to nearly nothing.

“It was incredibly frustrating,” said Alec Bartek, a physics major from Brookeville, Md. “For some reason our lightcurve didn’t look right.”

Hayes-Gehrke suspected that 3905 Doppler was actually two asteroids orbiting one another, with one of the two asteroids occasionally blocking the light of the other.

Lorenzo Franco, an amateur astronomer in Italy, was viewing 3905 Doppler at around the same time and his data was able to confirm that the light curve came from a binary asteroid.

“Even then I was not fully aware of how special the discovery was,” said Brady Bent, an economics major from Arbutus, Md. “I thought it just meant we would have to do more work. As we continued to analyze our data, other professors in the Astronomy Department came over to view our work. At this point I understood just how rare our find was.”

Hayes-Gehrke noted that the students used the same problem-solving methods that a professional astronomer would use to analyze an unanticipated result.

“That’s the whole point of the class,” Hayes-Gehrke said. “I’m hoping they’ll keep in mind, when they read about scientific results, that it’s not a cut-and-dried process, but the scientist probably had to go through some kind of struggle to get results.”

Study Suggests Meditation May Lead To Relief From Depression, Pain

Gerard LeBlond for redOrbit.com – Your Universe Online
A new study from Johns Hopkins University suggests that mindfulness meditation can improve anxiety and depression along with reducing pain.
The study, published in the journal JAMA Internal Medicine, included 47 different trials involving 3,515 different people. Results showed that the meditation had small but positive effects on pain, anxiety and depression.
“Anxiety, depression, and stress/distress are different components of negative affect. When we combined each component of negative affect, we saw a small and consistent signal that any domain of negative affect is improved in mindfulness programs when compared with a nonspecific active control,” wrote the researchers, as cited by HuffPost.
In an email to Reuters Health, study lead author Dr. Madhav Goyal wrote, “Many people have the idea that meditation means just sitting quietly and doing nothing. That is not true. It is an active training of the mind to increase awareness, and different meditation programs approach this in different ways.”
Results from the study indicated that people who did mindfulness meditation had a five to ten percent improvement in anxiety symptoms and ten to twenty percent improvement in depression symptoms over people who participated in other activities.
Some studies review the potential harm of mindfulness meditation, but in nine of the included trials, no harmful effects of any kind were reported.
There are differences between mantra meditation and mindfulness meditation. Mantra meditation focuses on a particular word or sound, whereas mindfulness meditation involves paying attention to whatever enters the mind without becoming too focused on it.
Mantra meditation programs involve “use of a mantra in such a way that it transcends one to an effortless state where focused attention is absent.” Programs such as these seem to show no particular health benefits, although the researchers noted that very few studies meet their criteria to be included in the review.
“This lack significantly limited our ability to draw inferences about the effects of mantra meditation programs on psychological stress-related outcomes, which did not change when we evaluated transcendental meditation separately from other mantra training,” they wrote.
The researchers believe more studies need to be done on meditation to attain results on the health benefits of mindfulness meditation. Mindfulness meditation takes time to acquire the skill and it is presumed that the longer you do it the greater the benefits you will gain.
In the same journal, Dr. Allan H. Goroll, MD, from Harvard Medical School, published an article stating that most of the studies were less than 12 months long so, “longer study duration will be needed to address the question of maximum efficacy.”
“Nonetheless, the small but potentially meaningful reductions in the distress of anxiety and depression associated with limited-term mindfulness programs argue for consideration of their use as a means of moderating the need for psychopharmacologic intervention in these conditions,” he added.
Goroll also noted that some of the studies found no benefit, but the desire to control anxiety is a reason why mindfulness meditation is becoming popular today.
He concurred that more studies are needed because people make treatment decisions on what they believe instead of data.
“That is particularly the case with alternative and complimentary approaches to treating medical problems. It ranges from taking vitamins to undergoing particular procedures for which the scientific evidence is very slim but people’s beliefs are very great,” Goroll concluded.
Roughly nine percent of the people in the US reported some type of meditation in 2007, and one percent said they used it as a form of treatment or medicine.
The study included randomly assigning people who had a certain condition like anxiety, pain or depression to do meditation. The people were found through several electronic databases that catalog medical research.
Goyal suggested that meditation was not created for treating health conditions, “Rather, it is a path we travel on to increase our awareness and gain insight into our lives. The best reason to meditate is to gain this insight. Improvements in health conditions are really a side benefit, and it’s best to think of them that way.”

Make New Friends, But Keep The Old? New Study Claims Otherwise

[ Watch the Video: People Unconsciously Limit Their Social Circles ]

redOrbit Staff & Wire Reports – Your Universe Online

People unconsciously limit their social circles, giving preference to family and close friends while limiting the number of others they interact with regularly, according to new research appearing in Proceedings of the National Academy of Sciences online early edition (PNAS).

According to the study’s authors, people essentially maintain a “one-in, one-out” policy when it comes to their social networks making sure that their communication patterns remain the same even if the actual friendships themselves change. It holds true, even though online social media and mobile technology has made it easier to communicate with large groups of people, the researchers added.

“Although social communication is now easier than ever, it seems that our capacity for maintaining emotionally close relationships is finite,” explained Felix Reed-Tsochas, the James Martin Lecturer in Complex Systems at the University of Oxford.

“While this number varies from person to person, what holds true in all cases is that at any point individuals are able to keep up close relationships with only a small number of people, so that new friendships come at the expense of ‘relegating’ existing friends,” he added.

Reed-Tsochas and colleagues from the University of Oxford and the University of Chester monitored changes in the communication networks amongst 24 UK students over an 18-month span. During that time, the students were either transitioning from high school to college, or beginning their careers by finding employment.

At the beginning of the study, the members of each participant’s friends and family were ranked in terms of emotional closeness, and over the 18-month period the investigators combined survey data and detailed information obtained from mobile phone call records in order to track changes to those social circles.

“They discovered that, in all cases, a small number of top-ranked, emotionally close people received a disproportionately large fraction of calls,” the University of Oxford explained. “Within this general pattern, however, there was clear individual-level variation. Each participant had a characteristic ‘social signature’ that depicted their particular way of allocating communication across the members of their social network.”

Even though the relationships of the study participants changed, and they made new friends during the transitional period, the study authors found that the social signatures remained the same. Participants kept making the same amount of calls to people, on average, based on how they were ranked for emotional closeness – even though the actual people included in their social networks and/or their ratings were subject to change.

“As new network members are added, some old network members are either replaced or receive fewer calls,” Oxford evolutionary psychology professor Robin Dunbar said.

“This is probably due to a combination of limited time available for communication and the great cognitive and emotional effort required to sustain close relationships,” he added. “It seems that individuals’ patterns of communication are so prescribed that even the efficiencies provided by some forms of digital communication (in this case, mobile phones) are insufficient to alter them.”

A Diet Rich In Fish And Olive Oil May Reduce Risk Of Type 2 Diabetes

Gerard LeBlond for www.redorbit.com – Your Universe Online

A diet consisting of fresh produce, chicken, fish and olive oil can reduce the risk of type 2 diabetes even without weight loss, according to a new study led by Spanish researchers from the Centro de Investigación Biomédica.

The new study involved more than 3,500 older adults with a high risk of heart disease. They were placed into three different groups: a low-fat diet and two Mediterranean diets, one with the addition of mixed nuts and the other with extra-virgin olive oil. They also received no special instructions pertaining to weight loss or exercise.

The Mediterranean diet consisted of fruits, vegetables, whole grains and fish. The group who used olive oil was allowed just over three tablespoons a day. The mixed nut group was allowed walnuts, almonds and hazelnuts once a day.

The researchers adjusted for other risk factors for diabetes and found that the olive oil group had a 40 percent reduced risk of developing the disease than the low-fat diet group. For5  the mixed nut group, the risk was only 18 percent reduced.

According to the LA Times, three risk factors the study used to determine the subgroup were active smokers, overweight or obesity; family history of premature heart disease; or hypertension or high cholesterol.

The men and woman ranged in age from 55 to 80 and were monitored over four years and between the years 2003 to 2010. The study revealed that 80 people who were in the olive oil group developed type 2 diabetes, 92 in the mixed nut group and 101 in the low-fat diet group.

The research was published online January 7, in the Annals of Internal Medicine. Editor-in-chief of the journal, Dr. Christine Lane, who was not part of the research, commented that the study, “suggests it is possible to reduce the risk of diabetes by changing the composition of your diet. It is another piece of evidence that the Mediterranean diet has health benefits.”

She also added that people, “should work hard to maintain a healthy body weight.”

Olive oil has anti-inflammatory and antioxidant properties, which may be the reason for the reduced risk. But, even though the study suggests long term olive oil consumption will reduce this risk, it doesn’t determine the cause-and-effect.

People who have diabetes don’t produce the hormone insulin and have trouble controlling blood sugar. Frequency of this disease has more than doubled worldwide in the past 30 years. It can cause blindness, kidney failure and lead to amputation.

Connie Diekman, director of university nutrition at Washington University in St. Louis told Kathleen Doheny of HealthDay, “The important message from this study is the value of a Mediterranean diet plan to satiety and overall health. Inclusion of plant foods, including nuts, along with the use of olive oil in place of solid fats provides a wider variety of phytonutrients, which promote health, aid metabolism and provide feelings of fullness, all important aspects of weight control.”

Dr. David Heber, from UCLA’s Center for Human Nutrition, believes that people should still cut fat from their diets. He stated that when people lose five to ten percent of their body weight by reducing calorie intake as well as exercise, they cut the risk of developing the disease by close to 60 percent.

“Saying that it’s beneficial to consume more olive oil, which has over 100 calories per tablespoon, without weight loss encourages magical thinking about diabetes,” Heber added.

Dr. James B. Meigs, an internal medicine specialist at Harvard, commented that the latest research suggests a Mediterranean diet reduces the risk of the disease as much as preventive medicine. But, he still recommends a low-fat, low calorie diet along with 30 minutes of exercise per day. He also suggest that physicians should still advise weight loss and exercise but sees, “little harm … of also encouraging” a Mediterranean diet.

The groups on the Mediterranean diet were allowed seven glasses of wine per week and the low-fat diet group was told to avoid nuts and vegetable oil, limit store-bought sweets to one per week and remove visible fat from meat. They were also encouraged to eat three servings of low-fat dairy products per day and limit bread, potatoes, pasta or rice to three servings per day.

One factor that may have had an effect on the results was that the groups in the Mediterranean diets stuck to the guidelines more. The researchersnoted that the considerable compliance difference between the Mediterranean groups and the low-fat group were significant. They wrote, “These differences were probably critical.”

Shrinking Cerebellum Leaves Oregon Boy Unable To Blink

redOrbit Staff & Wire Reports – Your Universe Online
A mysterious illness has left a three-year-old Oregon boy with a partially paralyzed face and the inability to blink his eyes due to a shrinking cerebellum, ABC News and other media outlets reported on Monday.
Young Corban Durant has already been to the hospital countless times, including more than 80 times during the first 10 months of his life, according to FoxNews.com. He has a heart valve problem, liver-lung disorder, low muscle tone and neuropathy in his legs, according to reports, but doctors have been unable to locate the root cause of his health issues.
According to Gilliam Mohney of ABC’s Good Morning America, Corban’s cerebellum is apparently shrinking, which can cause nerve degeneration and impair motor function. Despite years of testing, doctors have been unable to provide concrete answers for the boy’s condition. They told Corban and his family that a genetic abnormality is the most likely culprit, but multiple tests searching for specific abnormalities have all come back negative.
His doctors have recommended that Corban be taken to the Mayo Clinic, but as the Daily Mail pointed out, that facility charges an initial consultation fee of $20,000 and the family’s insurance will not cover a visit there. The Durant family has turned to bake sales, car washes, and online fund-raising efforts in an attempt to help Corban get the medical care that he needs.
“We’re really hoping for a diagnosis, an overall diagnosis of his condition, so that we are able to care for him the best that we can and help prolong his life and make it full,” his mother, Natasha Durant, told reporters. She explained that his current doctors “were working on this for four years” and “decided it’s time for him to see a new team.”
“While the disease has taken a physical toll, Durant said Corbin [sic] remains a very outgoing kid and he appears to be aware of how other people perceive his illness,” Mohney said.
Likewise, Natasha said that until three months ago, the energetic Corban “didn’t have a care in the world… [but] he’s starting to understand.” She added that she is hopeful that the Mayo Clinic doctors will be able to find “something to slow it down.”

Mental Strain Significanly Slows Concussion Recovery

Brett Smith for redOrbit.com – Your Universe Online

Although concussions are caused by a physical trauma, a new study showed that mental exertion after suffering a head injury can delay a full recovery. The new study, which was published in the journal Pediatrics on Monday, suggested that kids who suffer a concussion should try to give their brains a few days rest before returning to normal activities.

“After a concussion, we recommend rest because kids tend to do too much,” study author, Dr. Naomi Brown, a physician in the division of sports medicine at the Children’s Hospital of Philadelphia, told HealthDay.

The study included 335 patients between the ages of 8 and 23 who visited the sports concussion clinic at Boston Children’s Hospital. The study team found that almost half of the children and young adults in the study who didn’t reduce their mental strain took 100 days or longer to completely recover. Almost all participants who cut back the most on their daily mental strain had recovered by 100 days, most within two months.

Co-author Dr. William Meehan said while vigorous mental exertion appeared to be detrimental to recovery, more modest levels of mental effort do not seem to delay recovery.

“We recommend a period of near full mental rest after injury – approximately three to five days – followed by a gradual return to full levels of mental activity,” said Meehan, director of the Sports Concussion Clinic at Boston Children’s Hospital.

In the study, participants were asked to describe their symptoms and how much mental work they had done since their last visit. They were given five options for describing their amount of mental work during studies and video games: complete mental rest, minimal mental activity, moderate mental activity, significant mental activity or full mental activity.

The study researchers emphasized that only those who reported the highest level mental activity took the longest time to completely recover and parents should take the study’s findings as a reason to keep their child away from mental activities.

“If you shut down completely, meaning you don’t go to school or do any reading or screen time, or if you do a little bit less than normal, you recover in the same time period – an average of 20 to 50 days,” Brown said.

The doctor said young people who suffer a concussion should slowly resume standard daily mental activity, possibly working only until symptoms such as headaches begin to appear.

“We are not recommending complete abstinence from school, especially after the first week,” she said. “If you go to school for a couple of hours and you are doing OK, then the next day you can go for a little bit more and slowly test it out.”

Brown added that every concussion and every patient is different.

Dr. John Kuluz, a traumatic brain injury expert at Miami Children’s Hospital, said he tells concussion patients to take it easy.

“Rest is the cornerstone of concussion therapy,” he said. “I tell my patients, ‘You have to slow down, but I don’t want you to do nothing. I want you to find the right amount of mental activity for you, and you find that level by paying attention to your symptoms,'” he added.

Using Light Stimulation Therapy To Stop Binge Drinking

Brett Smith for redOrbit.com – Your Universe Online

A team of American researchers has stumbled upon a way to prevent binge drinking in animal subjects, according to a new report in the journal Frontiers in Neuroscience.

By using light to stimulate specific neurons in the brain, the study team was able to show a cause-and-effect relationship between the discharge of dopamine in the brain and drinking behaviors of animals.

“For decades, we have observed that particular brain regions light up or become more active in an alcoholic when he or she drinks or looks at pictures of people drinking, for example, but we didn’t know if those changes in brain activity actually governed the alcoholic’s behavior,” study author Caroline E. Bass, an assistant professor of pharmacology and toxicology in the University at Buffalo’s School of Medicine and Biomedical Sciences.

For the study, the research team trained laboratory rats to model binge-drinking behavior in humans.

“By stimulating certain dopamine neurons in a precise pattern, resulting in low but prolonged levels of dopamine release, we could prevent the rats from binging. The rats just flat out stopped drinking,” Bass said.

The researchers were able to activate dopamine neurons through new type of deep-brain stimulation called optogenetics. The technique uses light instead of the electrical impulses used by traditional methods to stimulate neurons.

“Electrical stimulation doesn’t discriminate,” Bass explained. “It hits all the neurons, but the brain has many different kinds of neurons, with different neurotransmitters and different functions. Optogenetics allows you to stimulate only one type of neuron at a time.”

The pharmacology professor used a virus to place a specially-designed, light-responsive protein into the rodents’ brains. While the protein was activated, it stimulated a specific cohort of dopamine neurons in the subjects’ brains.

“I created a virus that will make this protein only in dopaminergic neurons,” said Bass, who has extensive experience working with viruses.

The UB professor said neuronal pathways explored by this research are involved in many cognitive disorders. This means that the study results have applications in treating mental illnesses and neurological diseases that are dopamine-related. Bass noted that this study’s capacity to target specific dopamine neurons could possibly lead to the use of a novel gene therapy for the brain.

“We can target dopamine neurons in a part of the brain called the nigrostriatal pathway, which is what degenerates in Parkinson’s disease,” she said. “If we could infuse a viral vector into that part of the brain, we could target potentially therapeutic genes to the dopamine neurons involved in Parkinson’s. And by infusing the virus into other areas of the brain, we could potentially deliver therapeutic genes to treat other neurological diseases and mental illnesses, including schizophrenia and depression.”

The new study, which involves mapping the neuronal circuits behind specific behaviors, is a primary focus of President Obama’s Brain Research for Advancing Innovative Neurotechnologies initiative (BRAIN). Run under the National Institutes of Health (NIH), BRAIN aims to “fill major gaps in our current knowledge and provide unprecedented opportunities for exploring exactly how the brain enables the human body to record, process, utilize, store, and retrieve vast quantities of information, all at the speed of thought,” according to a statement on the NIH website.

Specially Designed Fruit Smoothie May Lead To A Healthy Glow

University of Nottingham Malaysia Campus

A group of university students are enjoying a specially designed fruit smoothie a day to discover whether it can improve their appearance and make them feel healthier. Their efforts are part of a study to assess what effect a carotenoid rich fresh fruit drink could have on our skin and perceived attractiveness.

The research, by the Schools of Psychology and Biosciences at The University of Nottingham Malaysia Campus (UNMC), is comparing two different health drinks. One group of students is drinking a smoothie made from carrots and a selection of underutilized Malaysian fruits while the control group received mineral water.

The relationship between skin carotenoid coloration and improved facial appearance has already been demonstrated in a western population by lead researcher Dr Ian Stephen.  In this previous study, published in the academic journal Evolution and Human Behavior, he found that people who ate more fruit and vegetables each day had a more golden color to their skin which, in follow up perceptual studies, made them look healthier and by extension more attractive. The aim of his latest research project is to study what effect a drink made from carrots and local tropical fruits could have on the appearance in an SE Asian population and whether the volunteers looked any healthier as a result.

Carotenoids are natural lipophilic orange and yellow pigments present in most fruit and vegetables. β-carotene is one of the most studied carotenoids and known for its function as pro-vitamin A and dietary antioxidant. The students enjoyed either a smoothie a day or the equivalent volume of mineral water for a duration of six weeks. Each juice contained local Malaysian fruit such as Chiku, Kedondong, Pulasan, Dragon fruit and Star fruit.

After creating 30 different recipes, seven smoothies were chosen for the study each containing up to 50 per cent underutilized fruit. 80 volunteers were recruited by PhD student Tan Kok Wei, who is running the study, and took part in a six week trial. During that time measurements were taken of their body composition, dietary intake, skin color and brightness. Although initial data suggests significant results, these will be scored by an independent group of experts before they are published.

Dr Stephen said: “There is a lot of research out there suggesting that people who look healthier actually are healthy. So hopefully we will be able to find out something about the health benefits of drinking a carotenoid rich smoothie as well as how it affects our perceived attractiveness. Many people tend not to drink enough water or eat enough fruit and vegetables and even fall below the recommended five portions a day. If we discover that a smoothie a day does measurably and demonstrably improve the appearance of our skin hopefully that will encourage people to eat and drink more healthily.”

Dr Brigitte A Graf, a nutrition scientist and an expert in bio-availability of active food ingredients, has designed the intervention product — the smoothies. She said: “I am interested in collaborating with psychologists because nutrition has a lot to do with psychology. My role is to monitor all the nutritional aspects of this study. It is important that bioactive food ingredients — in this case carotenoids — are absorbed from the food into the body. If carotenoids from our smoothie are not absorbed they cannot travel into the skin. Together with Dr Soma Mitra we also assessed the background diet of all the participants before they were allowed to join the study.”

On The Net:

US Seasonal Flu Widespread With H1N1 As The Dominant Strain

Lawrence LeBlond for redOrbit.com – Your Universe Online
The 2013-2014 influenza season is underway in the United States, with more than half the country reporting widespread cases of flu activity, according to the US Centers for Disease Control and Prevention (CDC).
While last year’s flu season was one of the worst in recent years in the US, one of this year’s strains – H1N1 – is making up more than half of the cases so far reported. It was during the 2009-2010 flu season that H1N1 caused a global pandemic, spreading from central Mexico to more than 70 other countries, killing in the neighborhood of 284,000 people, according to the CDC.
In just the past week, the number of states reporting above average cases of seasonal flu jumped from 10 to 25, with widespread activity reported in Alabama, Alaska, Arkansas, Colorado, Connecticut, Georgia, Idaho, Illinois, Indiana, Kansas, Louisiana, Massachusetts, Minnesota, Nebraska, Nevada, New York, North Carolina, Oklahoma, Oregon, Pennsylvania, Texas, Utah, Virginia, Washington state and Wyoming.
According to the CDC, “widespread activity” means that more than 50 percent of geographic regions within a state are reporting flu activity. This particular CDC data measures the overall spread of flu, but not the severity of illnesses.
The flu is responsible for thousands of deaths each year in the US, with peak activity from October to March. This season, the flu is spreading relatively quickly.
“We are seeing a big uptick in disease in the past couple of weeks. The virus is all around the United States right now,” Dr. Joe Bresee, chief of Epidemiology and Prevention in the CDC’s Influenza Division, told Reuters.
During the 2009-2010 flu season, younger people were more susceptible to H1N1. This year it is still too early to tell if the same age group will be most at risk, noted Bresee.
At least six children have died as a result of influenza this year, according to CDC data.
“There is still a lot of season to come. If folks haven’t been vaccinated, we recommend they do it now,” Bresee said.
Dr. Michael Jhung, a medical officer in the CDC’s flu division, told CNN that despite the quick spread, “it’s a typical influenza season.”
He said that flu cases usually peak in January and February, noting that the only difference this year is that H1N1 is the most common strain.
H1N1, which was called swine flu when it broke out around the world in 2009, has maintained a human presence in each flu season since then. Because of this, H1N1 is no longer regarded as swine flu but rather a human seasonal virus, according to Jhung.
In fact, the H1N1 strain is now so common, it was included in this year’s vaccine.
While it is difficult to track illnesses and deaths of each particular strain, CDC data estimates that 381,000 US citizens were hospitalized last year due to influenza; 171 children had also died during the 2012-2013 flu season, which health experts have called a relatively severe season.
Still, flu vaccinations last year prevented 6.6 million illnesses, 3.2 million doctor visits and at least 79,000 hospitalizations, the CDC reported.
Flu vaccines are recommended for all people over the age of six months, especially those who are pregnant and at high risk of complications, which includes the elderly, children under the age of five and those with underlying medical conditions or who have compromised immunity.
For those who do get sick, antiviral medications are a good treatment, Jhung told CNN. He added that antivirals should be administered within two days of the first sign of symptoms for the best effect.
Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota in Minneapolis, told USA Today’s Elizabeth Weise that this year is looking a lot different than last year’s flu season.
H3N2 was the dominant strain in 2012-2013 and was responsible for a larger number of deaths in older people. With H1N1 being the main strain this year, “we fully expect to see many more cases in younger children and middle-aged adults,” Osterholm told Weise.
“Mark my word, by the end of next week we’ll probably see some fear and panic as it starts to hit kids,” Osterholm added.
On a positive note, H1N1 has not had much time to develop a resistance to antiviral drugs such as Tamiflu, noted Bresee.
In Texas, where 25 people have so far died from this season’s flu outbreak, the Texas Department of State Health Services issued an “influenza health alert,” advising clinicians to consider antiviral treatment when necessary, even if an initial rapid-flu test comes back negative. It is also urging all citizens to get the annual flu shot.
“The flu is considered widespread in Texas,” Carrie Williams, a spokeswoman for the state’s health department, said in a statement to Reuters.

Stovepipe Sponge, Aplysina archeri

The Stovepipe Sponge (Aplysina archeri) is a species of tube sponge found mainly in the Atlantic Ocean, including the waters around the Caribbean, Bahamas, Florida, and Bonaire.

This species has long tube-like structures cylindrical in nature and many tubes are attached to one particular part of the organism. The tubes occur in varying colors including lavender, gray and brown.

The Stovepipe Sponge is a filter feeder and eats food such as plankton or suspended detritus as it passes by them. Very little is known about its behavioral patterns except for its feeding ecology and reproductive biology.

It reproduces both asexually and sexually. Sperm is released into the water column where it floats and then settle down on substrate and begins to reproduce cells and grow. It takes hundreds of years for a single sponge to mature and it actually never stops growing until it dies.

Toxic dumping and oil spills are among the main threats of this species.

Image Caption: Stove-pipe Sponge-pink variation. Credit: Nick Hobgood/Wikipedia(CC BY-SA 3.0)

Study Explaining Parasite Gene Expression Could Help Fight Toxoplasmosis And Malaria

A newly identified protein and other proteins it interacts with could become effective targets for new drugs to control the parasite that cause toxoplasmosis, researchers led by investigators at Indiana University School of Medicine have reported.

The discovery could also open new research pathways for treatments for malaria.

The researchers determined that the protein, an enzyme called GCN5b, is necessary for the Toxoplasma parasite to replicate, so interfering with its activities could control the parasite. GCN5b is part of the molecular machinery that turns genes on and off in the parasite, working with other proteins that, the researchers discovered, are more plant-like than their counterparts in humans.

“GCN5b is a very different protein than its human counterpart, and proteins it interacts with are not found in humans,” said William J. Sullivan Jr., Ph.D., associate professor of pharmacology and toxicology.

“That’s what makes this exciting — rather than just having one enzyme that we could go after, there could be a whole collection of associated enzyme components that could be potentially targeted for drug therapies to control this parasite,” he said.

In discovering that some of the proteins interacting with GCN5b are plant-like transcription factors — proteins that bind to DNA — the researchers filled in what had been a missing link explaining how the parasites control the process of turning genes on and off, known as gene expression. The plant-like transcription factors recruit the GCN5b enzyme complex to activate a wide variety of genes for expression.

When the research team disabled the GCN5b complex, parasite replication swiftly came to a halt.

Dr. Sullivan and his colleagues reported their findings in the Jan. 2, 2014, online edition of the journal PLOS Pathogens.

An estimated 60 million people in the United States are infected with the toxoplasmosis parasite, but in most cases the infection produces flu-like symptoms or no symptoms at all. However, for people with immune system problems – such as those undergoing chemotherapy or people with AIDS – the disease can cause serious effects including lung problems, blurred vision and seizures. Also, infants born to mothers who are infected for the first time during or shortly before pregnancy are at risk for severe complications, miscarriages or stillbirths.

One of the most common routes to human infection is via cats, in particular their feces or litter. Eating undercooked meat from infected livestock can also result in human infection.

Although there are anti-parasitic drugs available to treat acute episodes of toxoplasmosis, it’s currently impossible to completely eliminate the parasite because it can switch from an active to a latent cyst form in the body. Since GCN5b is active during both acute and latent stages, the enzyme and its associating components are very promising candidates for drug targeting, Dr. Sullivan said. Because the transcription factors are plant-like proteins not found in humans, drugs targeting them would be much less likely to affect human proteins and cause adverse effects.

Researchers also use Toxoplasma as a model organism for the malaria parasite Plasmodium, meaning much of what is learned about Toxoplasma could lead to new treatments for a disease that struck an estimated 207 million people worldwide in 2012 and caused an estimated 627,000 deaths, most of them children. Dr. Sullivan noted that the malaria parasite also possesses a GCN5 enzyme, as well as the plant-like proteins.

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Odor Receptors In Lungs May Protect Airways

Brett Smith for redOrbit.com – Your Universe Online

New research published in the American Journal of Respiratory Cell and Molecular Biology has revealed that odor receptors aren’t just found in the nose – they also line the lungs as well. However, instead of being used to detect the aroma of blueberry cobbler or a succulent roasting chicken, the odor receptors in the lungs trigger a response designed to protect the airways.

“We forget,” said study author Yehuda Ben-Shahar, “that our body plan is a tube within a tube, so our lungs and our gut are open to the external environment. Although they’re inside us, they’re actually part of our external layer.”

“So they constantly suffer environmental insults, and it makes sense that we evolved mechanisms to protect ourselves,” added Ben-Shahar, and assistant professor of biology and medicine at Washington University in St. Louis.

While odor receptors in the nose are embedded in the cell membranes of nerve cells, receptors in the lungs are found in the membranes of neuroendocrine cells. When the lung receptors detect a harsh smell, they set off a hormonal response that constricts the airways, protecting them from harm.

Since airway diseases are marked by hypersensitivity to volatile molecules, the study team theorized that the lungs must have a way of sensing inhaled chemicals. A study published in the journal Science in 2009 found a group of ciliated cells in the respiratory system that have bitter-taste receptors. When bitter odor molecules were detected, the cilia worked harder to sweep them out of the airway.

In the new study, the research team decided to investigate this phenomenon further. By exposing cultured cells to volatile chemicals, the researchers found that respiratory tissues also express odor receptors. These receptors were not found on ciliated cells, but on neuroendocrine cells that release serotonin and other neuropeptides when they are activated.

Ben-Shahar said his team’s finding should have been expected.

“When people with airway disease have pathological responses to odors, they’re usually pretty fast and violent,” said Ben-Shahar. “Patients suddenly shut down and can’t breathe, and these cells may explain why.”

The researchers noted that the cells in the airways are secretory, not neuronal – meaning they are broadly tuned with multiple receptors. Also, instead of sending signals to the brain, the lung receptors inundate local nerves and muscles with hormones.

“They are possibly designed to elicit a rapid, physiological response if you inhale something that is bad for you,” Ben-Shahar explained.

The study team suspected that these pulmonary neurosecretory cells play a role in the hypersensitivity of patients with chronic obstructive pulmonary disease (COPD) to airborne irritants. COPD is a class of diseases that are marked by coughing, wheezing, shortness of breath and chest tightness.

When the researchers examined tissues from patients with COPD, they found more neurosecretory cells than in airway tissues from healthy donors. Ben-Shahar says that future research should focus on exploring the genetic mechanisms behind these neurosecretory cells.

“Clearly, primates have evolved distinct cell lineages and signaling systems for respiratory-specific functions,” he added.

Traditional Chinese Medicine Proves Effective For Chronic Pain

Rebekah Eliason for redOrbit.com – Your Universe Online

For centuries, Chinese medicine has used the roots of the flowering plant Corydalis, which is a member of the poppy family, as a pain reliever. It appears that the roots of this flowering plant contain the compound dehydrocorybulbine (DHCB), which is key pain-relieving compound.

Olivier Civelli of the University of California, Irvine said, “Our study reports the discovery of a new natural product that can relieve pain. This analgesic acts in animal assays against the three types of pain that afflict humans, including acute, inflammatory, and neuropathic or chronic pain.”

This discovery was made from the herbalome project, an attempt to catalog all of the chemical components in traditional Chinese medicine. “Today the pharmaceutical industry struggles to find new drugs. Yet for centuries people have used herbal remedies to address myriad health conditions, including pain. Our objective was to identify compounds in these herbal remedies that may help us discover new ways to treat health problems. We’re excited that this one shows promise as an effective pharmaceutical. It also shows a different way to understand the pain mechanism,” said Civelli.

The new study focused on the corydalis plants which grow mainly in central eastern China. Their underground tubers are harvested, ground and boiled in hot vinegar. Often the concoctions are prescribed to treat pain that includes headaches and back pain.

Researchers began by searching for compounds in corydalis that seemed likely to function in a manner similar to morphine. Civelli explained, “We landed on DHCB but rapidly found that it acts not through the morphine receptor but through other receptors, in particular one that binds dopamine.” Earlier studies have indicated that the dopamine D2 receptor could be a significant player in pain sensation. This new research adds evidence to this theory.

Although corydalis extracts and isolated DHCB are effective for all types of pain, this compound brings a special hope for people who suffer with persistent, low-level chronic pain. One significant aspect is that DHCB does not appear to lose effectiveness when used over long periods of time like traditional opiate drugs.

“We have good pain medications for acute pain: codeine or morphine, for example,” Civelli says. “We have pain medication for inflammatory pain, such as aspirin or acetaminophen. We do not have good medications for chronic pain. DHCB may not be able to relieve strong chronic pain, but may be used for low-level chronic pain.”

Although various prepared types of corydalis are available to be purchased online, Civelli and Liang say DHCB is not ready for the market yet. Before doctors should consider prescribing it to patients, additional testing for toxicity is necessary. These findings were reported on January 2, 2014 in the journal Current Biology.

Medical Legacy Of Knut The Polar Bear

Leibniz Institute for Zoo and Wildlife Research

Keeping wild animals is an important component of the mission of zoos to educate the public and preserve endangered species. When animals die, tracking the potential cause becomes an investigation of pathogens from around the world. This is because zoo animals are not only potentially exposed to pathogens occurring where the zoo is located, but also to those pathogens harbored by other zoo animals. In other words: the diagnostic challenge is enormous.

In the case of Knut, researchers from the Leibniz Institute for Zoo and Wildlife Research Berlin (IZW), the Freie Universität Berlin, the Friedrich Loeffler Institute – Insel Riems, the Max Delbrück Center for Molecular Medicine in Berlin, the University of California at San Francisco and many others combined their efforts to investigate Knut’s death. Classical pathological, bacteriological, serological, molecular, histological and electron microscopical methods were combined with high throughput microarray and next generation sequencing methods to undertake the most extensive and exhaustive evaluation of the cause of death of any zoo animal to date. The necropsy was headed at the IZW by Dr Claudia Szentiks of the Department of Wildlife Diseases.

“After a detailed necropsy and histology that took several intense days to perform, the results clearly suggested that the underlying cause of Knut’s seizures was a result of encephalitis, most likely of viral origin,” says Dr Szentiks.

Encephalitis can be caused by a large number of viruses, bacteria and parasites, and identifying novel pathogens in wild animals is a huge and often insurmountable challenge. In the case of Knut, the team screened gene sequences from plausible causative pathogens from tens of millions of individual DNA sequences. “The sheer number of experiments undertaken and the sorting of results by many of the top diagnostics groups in Germany and beyond was extremely time consuming but also informative as to what we can and cannot do with current technologies. Many new directions for improvements and novel developments should come from this,” says Professor Alex Greenwood, head of the Department of Wildlife Diseases of the IZW. Although frequently suspected by many to be the likely culprit, the equine herpesviruses found in other polar bears in Germany and elsewhere was not responsible. The analysis of Knut also revealed a novel group of bear retroviruses whose presence was not related to his death. The only pathogen Knut seemed to have been exposed was an influenza A virus, as suggested by the detection of antibodies in his blood. However, it remains unclear and relatively unlikely that the flu was responsible for his death since the actual virus (in the form of viral RNA) could not be detected in his brain.

“After so much hard work, the results appear ultimately sobering. We cannot and therefore should not blame influenza as the source of death,” stated Professor Klaus Osterrieder, holder of the chair for Veterinary Virology at the Freie Universität Berlin.

The results illustrate that while great strides in diagnostics have been made over the last decade, wildlife diseases present unique challenges because less is currently known than remains unknown about them. As a case in point, the research on Knut led to the discovery that a herpesvirus of zebras is able to kill polar bears as documented in the Wuppertal Zoo, infecting Knut’s father Lars, who survived the infection, and his partner, Jerka, who died from the infection. This was a surprising result that has developed into an intensive project on herpesvirus transmission in endangered zoo animals. “It would have been impossible to check for all the suggested culprits without the support by the zoo community which willingly supplied samples from other animals for comparative purposes. This was exemplary. Although it will not help Knut any more, or other bears in the past, because of the new knowledge on pathogens in polar bears the zoos can now begin to develop management strategies to minimise their occurrence,” commented Professor Heribert Hofer, head of the IZW.

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Global Warming Not Primary Cause Of Svalbard-Area Methane Release

redOrbit Staff & Wire Reports – Your Universe Online

Natural processes, not global warming, are primarily to blame for the dissolution of the fragile, ice-like solid fuel substances known as methane hydrates, according to new research published online Thursday in the journal Science.

Methane hydrates, which are composed of water and methane, are only stable in high pressure and low temperature conditions, the study authors explained. In some areas, such as in the North Atlantic off the coast of Svalbard, scientists have detected gas flares regularly, but the reason for this phenomenon was unclear.

One hypothesis suggested that climate change might be helping to cause the dissolution of gas hydrates. However, over the past several years, an international team of researchers have discovered it is very likely that these gas flares are actually caused by natural processes.

“In 2008, when we observed the outgassing of methane for the first time, we were alarmed,” explained lead author Christian Berndt of the GEOMAR Helmholtz Centre for Ocean Research Kiel. “The gas originates from depths where the hydrates should normally be stable. But we knew that a relatively small warming might melt the hydrates.”

Berndt’s team conducted a series of expeditions over several years to help discover the source of the outgassing. One of the more commonly accepted assumptions was these regions of the North Atlantic were being affected by global warming. However, investigations conducted using a German search sub suggested otherwise.

“On one hand, we have found that the seasonal variations in temperature in this region are sufficient to push the stability zone of gas hydrates more than a kilometre up and down the slope,” the professor said.

“Additionally, we discovered carbonate structures in the vicinity of methane seeps at the seafloor,” added Dr. Tom Feseker from the MARUM Center for Marine Environmental Sciences in Bremen. “These are clear indicators that the outgassing likely takes place over very long time periods, presumably for several thousand years.”

However, the authors are quick to point out that this does not mean that climate change plays no role on the potential release of methane on the Svalbard-area seafloor. They explain that, over the course of time, deep oceans will also become warmer – especially in the polar regions, which are home to vast quantities of methane hydrate.

“As a powerful greenhouse gas methane represents a particular risk for our climate. A release of large amounts of the gas would further accelerate global warming,” Berndt said. “Therefore, it is necessary to continue long-term monitoring, particularly in such critical regions as off Svalbard.”

Climatic Variability Has A Significant Impact On Pine Island Glacier

redOrbit Staff & Wire Reports – Your Universe Online

Pine Island Glacier, one of the largest routes for ice to flow from Antarctica into the sea, is far more susceptible to climatic and ocean variability than previously believed, according to research published Thursday in the advanced online version of the journal Science.

Observations from Dr. Pierre Dutrieux of the British Antarctic Survey (BAS) and his colleagues showed sizable fluctuations in ocean heat in Pine Island Bay. They reported that oceanic melting of the ice shelf into which the glacier flows decreased by 50 percent between the years of 2010 and 2012, and that a La Niña weather event may have been to blame.

“Understanding the processes driving ice shelf thinning and the glacier’s response is key to assessing how much it will contribute to rising sea levels,” the British Antarctic Survey explained in a statement. “It’s now known that much of the thinning is due to a deep oceanic inflow of Circumpolar Deep Water (CDW) on the continental shelf neighboring the glacier. This warmer water then makes its way into a cavity beneath the ice shelf melting it from below.”

The ice shelf in the Pine Island region has experienced nearly continuous thinning since scientists started observing it in the 1970s, the researchers explained. While previous studies have demonstrated that warm deep-ocean water was melting the ice from underneath, the investigators found that the issue is more complicated than it appeared.

While the deep ocean has been warming, the more important factor is that warm water has been finding its way to the ice shelf, the researchers said. When conditions are optimal, the continental shelf can become flooded by warm deep water, and that water can make its way to the glacier margin. Over the past 20 years, measurements indicate that a thick layer of warm water has persisted on the continental shelf that has come in contact with the ice shelf.

When Dr. Dutrieux and his associates returned to the region in order to collect additional data last January, they discovered that the warm water layer was actually far thinner than before, and the ice shelf was being surrounded and protected by a thicker than normal layer of cold water.

“They estimated half as much meltwater was being produced from the glacier compared to 2010, making 2012 the year with the lowest summer melting of the Pine Island Glacier on record,” explained the University of Washington, which provided atmospheric modeling expertise to the researchers.

Based on water temperature measurements and ocean circulation models, they found that the reduced melting observed in 2012 was due to the fact that less warm, deep water was able to make it across the underwater ridge.

The reduced flow was due to a change in winds, which are typically westerly but had been coming out of the east for the majority of the preceding year, the study authors noted.

“We found ocean melting of the glacier was the lowest ever recorded, and less than half of that observed in 2010,” Dr. Dutrieux said. “This enormous, and unexpected, variability contradicts the widespread view that a simple and steady ocean warming in the region is eroding the West Antarctic Ice Sheet. These results demonstrate that the sea-level contribution of the ice sheet is influenced by climatic variability over a wide range of time scales.”

“It is not so much the ocean variability, which is modest by comparison with many parts of the ocean, but the extreme sensitivity of the ice shelf to such modest changes in ocean properties that took us by surprise,” added co-author Professor Adrian Jenkins, also from BAS. “These new insights suggest that the recent history of ice shelf melting and thinning has been much more variable than hitherto suspected and susceptible to climate variability driven from the tropics.”

Sun Emitted Two Solar Flares Saying Goodbye To 2013 And Hello To 2014

NASA
The sun ushered out 2013 and welcomed 2014 with two mid-level flares on Dec. 31, 2013 and Jan. 1, 2014. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing, anywhere from minutes to hours.
To see how this event may impact Earth, please visit NOAA’s Space Weather Prediction Center, the U.S. government’s official source for space weather forecasts, alerts, watches and warnings.
The first flare was categorized as an M6.4 and it peaked at 4:58 p.m EST on Dec. 31. The second (above) was categorized as an M9.9 and peaked at 1:52 p.m. EST on Jan. 1. Both flares emerged from the same active region on the sun, AR1936.
Imagery of the flares was captured by NASA’s Solar Dynamics Observatory, which keeps a constant watch on the sun, collecting new data every 12 seconds.

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Zio Patch Beats Holter For Extended Tracking Of Heart Rhythm

redOrbit Staff & Wire Reports – Your Universe Online

A small adhesive wireless patch worn on the chest for up to two weeks is better at detecting abnormal and potentially dangerous heart rhythms than the Holter monitor, the gold standard of care for decades, the Scripps Translational Science Institute (STSI) reported Thursday in the American Journal of Medicine.

The researchers said the ZIO Service – which includes the FDA-approved ZIO Patch, data analysis and a diagnostic report provided by device maker iRhythm Technologies – could replace the Holter monitor as the preferred method of tracking electrical heart activity in ambulatory patients.

“This is the first large prospective validation that this new technology superseded the device invented by Norman Holter in 1949,” said the study’s senior author and cardiologist Eric Topol, MD, STSI director and chief academic officer of Scripps Health.

“By tracking every heart beat for up to two weeks, the ZIO Service proved to be significantly more sensitive than the standard Holter, which uses multiple wires and typically is only used or tolerated for 24 hours.

“For millions of people who present each year with suspected arrhythmia, this may prove to be the new standard for capturing the culprit heart rhythm electrical disturbance, most commonly atrial fibrillation which carries a significant risk of stroke,” he said.

The ZIO Patch is a compact, low profile, noninvasive, water-resistant device that is worn for up to two weeks throughout normal activity, and then mailed by the patient to iRhythm for analysis with a proprietary algorithm. The Holter monitor, which was first introduced in the 1940s, includes a fist-sized recorder typically worn at the waist with up to seven lead wires that attach to the chest.

The STSI study used electrocardiograph data collected from 146 patients who were fitted with a ZIO Patch and a Holter monitor after being referred to the cardiac investigations laboratory at Scripps Green Hospital for ambulatory heart monitoring. The Holter monitor was worn for 24 hours, while the ZIO Patch was worn for up to 14 days.

The results showed that the ZIO Service detected 96 arrhythmia events while the Holter monitor detected 61, something the researchers mainly attribute to the patch’s prolonged monitoring.

Doctors who reviewed data from both devices reported attaining a definitive diagnosis 90 percent of the time when using the patch results, compared with 64 percent of the time when using Holter monitor data. Additionally, a survey of study participants found that 81 percent of them preferred wearing the patch over the Holter monitor, with 76 percent saying the Holter monitor affected their daily living activities.

One unexpected finding from the study was that the Holter monitor detected 11 more arrhythmias than the ZIO Service during the initial 24-hour period when both devices were working simultaneously. However, all of those arrhythmias were detected beyond 24 hours by the patch during the device’s extended monitoring period, and the ZIO Service detected two arrhythmias not captured by the Holter during the initial 24-hour period.

“On the basis of these findings, novel, single-lead, prolonged-duration, low-profile devices may soon replace conventional Holter monitoring platforms for the detection of arrhythmia events in patients referred for ambulatory ECG monitoring,” the study’s authors concluded.

Subvertical Faults Can Create Electrical Light Shows During Earthquakes

April Flowers for redOrbit.com – Your Universe Online

A new study, published in Seismological Research Letters, reveals that rare earthquake lights are more likely to occur on or near rift environments. These environments are where subvertical faults allow stress-induced electrical currents to flow rapidly to the surface.

Scholars have been intrigued by the luminous phenomena known as earthquake lights (EQL) since the earliest days of seismology. EQL appear before or during earthquakes, but rarely after.

Spheres of light floating through the air is one of the variety of forms that EQL can take. Pedestrians observed 4-inch-high flames of light flickering above the stone-paved Francesco Crispi Avenue seconds before the 2009 L’Aquila, Italy earthquake struck. In another example, a bright purple-pink globe of light moved through the sky along the St. Lawrence River near Quebec on November 12, 1988, 11 days before a powerful quake. About 62 miles northwest of San Francisco, a couple saw streams of light running along the ground two nights before the famous 1906 earthquake.

According to the team, the common factor associated with EQL appears to be continental rift environments. The study examined 65 documented cases of EQL since 1600 AD. Eighty-five percent of these appeared spatially on or near rifts, and 97 percent were observed adjacent to subvertical faults — for example, a rift, a graben, a strike-slip or a transform fault.

“The numbers are striking and unexpected,” said Robert Thériault, a geologist with the Ministère des Ressources Naturelles of Québec. Thériault worked with a team of colleagues to cull centuries of literature references, limiting the cases in this study to 65 of the best-documented events in the Americas and Europe.

“We don’t know quite yet why more earthquake light events are related to rift environments than other types of faults,” said Thériault, “but unlike other faults that may dip at a 30-35 degree angle, such as in subduction zones, subvertical faults characterize the rift environments in these cases.”

Of the 65 cases, two are associated with subduction zones, but Thériault suggests there may be an unknown subvertical fault present. “We may not know the fault distribution beneath the ground,” said Thériault. “We have some idea of surface structures, but sedimentary layers or water may obscure the underlying fault structure.”

The 65 earthquakes studied range in magnitude from M3.6 to 9.2. Eighty percent of them were M5.0 or greater. The observed EQL varied in shape and extent, though most commonly appeared as globular luminous masses, either stationary or moving, as atmospheric illuminations or as flame-like luminosities emanating from the ground.

The researchers found that timing and distance to the epicenter varied widely. The fact that most earthquake lights are seen before or during a seismic event, but rarely afterwards, suggests that the processes responsible for EQL formation are related to a rapid build-up of stress prior to fault rupture and rapid local stress changes during the propagation of the seismic waves. Positive holes, which are stress-activated mobile electronic charge carriers, flow swiftly along stress gradients. When they reach the surface, they ionize air molecules and generate the EQLs.

The account of a local L’Aquila resident, who, after seeing flashes of light from inside his home two hours before the main shock, rushed his family outside to safety, interests Thériault.

“It’s one of the very few documented accounts of someone acting on the presence of earthquake lights,” said Thériault. “Earthquake lights as a pre-earthquake phenomenon, in combination with other types of parameters that vary prior to seismic activity, may one day help forecast the approach of a major quake,” said Thériault.

New MRI Scanning Process Allows Doctors To Create Movie Of Wrist Movement

redOrbit Staff & Wire Reports – Your Universe Online
Researchers have developed a new method of diagnosing wrist problems by creating “movies” of the radiocarpal joint in motion using a series of brief magnetic resonance imaging (MRI) scans, according to a study appearing in Tuesday’s edition of PLoS ONE.
The process is known as Active MRI, and according to the study authors, it could be used to diagnose subtle changes in physiology indicative of the onset of conditions such as wrist instability. The high-speed images produced using the technique are “like a live-action movie,” according to lead author and University of California-Davis radiology professor Robert Boutin.
“The movie can be slowed, stopped or even reversed as needed. Now patients can reproduce the motion that’s bothering them while they’re inside the scanner, and physicians can assess how the wrist is actually working,” Boutin said. “After all, some patients only have pain or other symptoms with movement.”
According to senior author Abhijit Chaudhari, an assistant professor of radiology at UC Davis, wrist instability typically occurs when the carpal bones become misaligned and impact joint function. Typically this occurs as the result of trauma that injures the ligaments between those wrist bones, and it can cause chronic pain, impair mobility and ultimately lead to osteoarthritis.
“Good outcomes in managing the condition are more likely with early diagnosis, when less-invasive treatments are possible,” the university said. “Methods such as dynamic computed tomography and fluoroscopy can image the moving wrist, but these approaches involve radiation and do not show soft tissue such as ligaments – a major part of the wrist’s intricate architecture – as well as MRI scans.”
“MRI scans provide detailed anatomical information of wrist structures without using ionizing radiation, but they cannot help diagnose problems with bone or tendon position that are best seen when the wrist is moving,” Chaudhari added. “Active-MRI provides a detailed and ‘real time’ view of the kinesiology of the wrist in action using a widely available and safe technology.”
Ordinarily, a complete MRI exam takes between 30 to 45 minutes, with each image set requiring at least three minutes. That is nowhere near fast enough to create a video, the researchers said, so instead they developed a new MRI protocol that takes one image every 0.5 seconds and delivers a series of images in just 30 seconds.
In addition, Boutin, Chaudhari and their colleagues had to overcome the issue of imaging errors known as banding artifacts. Movement within the wrist bones can interfere with the scanner’s magnetic field, creating signal drop-offs and creating dark bands that can conceal the moving wrist. In order to address this problem, the investigators used dielectric pads to stabilize the magnetic field and give doctors a clear look at the wrist bones.
As part of their latest study, the investigators used the Active MRI process on 15 wrists belonging to 10 different participants, none of whom reported symptoms associated with wrist problems. The scans were taken during 10 minute exam sessions. During each, the subjects performing a variety of movements, including clenching their fists, rotating their wrists and waving their hands from side-to-side, the university explained.
“It’s quite phenomenal that we can look inside the body while it’s in action using MRI,” Boutin said. “Routine MRI provides exquisite details, but only if the body is completely motionless in one particular position. But bodies are made to move. We think Active MRI will be a valuable tool in augmenting traditional, static MRI tests.”
“Our next step is to validate the technology by using it on patients with symptoms of wrist instability,” added Chaudhari. “We also want to use Active-MRI to study sex distinctions in musculoskeletal conditions, including why women tend to be more susceptible to hand osteoarthritis and carpal tunnel syndrome.”

Study Shows Wind Power Can Cause Power Grid Problems, Offers Solution

Lee Rannals for redOrbit.com – Your Universe Online

Increasing the use of wind power generation may make the power grid more fragile, according to research published online in IEEE Transactions on Power Systems.

Researchers from North Carolina State University and Johns Hopkins University found that increasing wind power generation makes the power grid more susceptible to disruptions. However, while the study revealed the potential problem wind power brings, the team also was able to offer a solution.

The team devised a way for coordinating wind power generation and energy storage in order to minimize the potential for power disruptions.

Power flowing through lines on a power grid sometimes suffers from small deviations after a disturbance. These oscillations are mitigated through controllers inside the power generators. However, if controls are not strong enough, then the oscillations may reduce the efficiency of power transfer and pose a threat to the stability of the grid.

According to the study, under certain circumstances, wind power generators can make small oscillations worse. This happens because wind farms produce power erratically, as the amount of power being produced depends on how hard the wind is blowing.

“To counteract this problem, we have designed a technique that coordinates the activity of controllers inside the wind turbines and battery management systems to even out the flow of power from wind farms into the grid,” Dr. Aranya Chakrabortty, an assistant professor of electrical engineering at NC State and senior author of a paper describing the work, said in a statement.

Chakrabortty and colleagues developed several algorithms that match control efforts between wind farms and energy storage facilities. If power output from these wind farms increases, the surplus can be siphoned off to charge batteries at the storage facility, instead of just giving the grid all the power. If the power output at the wind farm begins to decline, then the batteries can push power back onto the grid to help mitigate the changing surges.

“By matching the behavior of the two controllers, we can produce the desired damping effect on the power flow and restore stable grid behavior,” Chakrabortty said in a statement.

Wind energy production in the US has been increasing rapidly over the years due to government mandates and the goal of providing 20 percent of the nation’s power through wind by 2020. Understanding how wind energy will affect the power grid is crucial for a future where this power becomes a large chunk of US energy. Studies like this provide the information scientists need to continue integrating wind power into the existing power grid.

Over One Thousand Applicants Picked To Compete For Spot On Mars One Project

[ Watch the Video: Candidates For Mars Trip Narrowed Down ]

Gerard LeBlond for redOrbit.com – Your Universe Online

Out of 200,000 applicants to establish a colony on Mars by 2025, Mars One announces the selection of 1058 candidates. Mars One is a non-profit organization with the goal of establishing a permanent human settlement on the Red Planet.

Co-founder of Mars One, Bas Lansdorp says, “We’re extremely appreciative and impressed with the sheer number of people who submitted their applications. However, the challenge with 200,000 applicants is separating those who we feel are physically and mentally adept to become human ambassadors on Mars from those who are obviously taking the mission much less seriously. We even had a couple of applicants submit their videos in the nude!”

Criteria for the selected applicants are posted on Mars One website.

The applicants were notified by e-mail of their status, and told that, if they were not selected, they could reapply at a later date. Lansdrop noted that “US astronaut Clayton Anderson was rejected by NASA for its astronaut training program 15 times, yet in 2007 he boarded the Space Shuttle Atlantis for a trip to the International Space Station. He proved anything can happen and the door is never completely closed.”

According to an ABC report, 297 applicants were picked from the United States, Canada had 75 and India had 62. In total, more than 107 countries are being represented with 586 men and 472 woman.

For those 1058 applicants who were picked, the next phase will be for them to be subjected to “rigorous simulations” that will focus on the physical and emotional stability and capabilities of each candidate.

According to Mail Online‘s Sarah Griggiths, the 1058 are all over the age of 18; 357 are under 25 and 415 are under 35 and the oldest person on the list is 81. The candidates will be narrowed down to 40 by the start of training in 2018. Candidates will also go through an interview process with the Mars One committee to determine the finalists for the next round.

The ones who advance will compete against each other in a Mars One-sponsored reality show where the viewers decide who continues to colonize the Red Planet, according to Martin Chilton of The Telegraph.

One of the applicants from Britain is a 20-year-old physics student, Ryan MacDonald, who said, “I still don’t know what exactly it will consist of, as the company is still in negotiations with TV companies, as some parts of the next rounds will be televised.”

The 2014 selection process has not been determined because of negotiations with the media for television coverage. “We fully anticipate our remaining candidates to become celebrities in their towns, cities, and in many cases, countries. It’s about to get very interesting,” said Lansdorp.

On December tenth, Mars One kicked off its first fund raising event to provide financing for the unmanned mission to Mars, scheduled for 2018. Mars One also announced an agreement with Lockheed Martin and Surrey Satellite Technology to develop plans for the 2018 mission.

Some people are a little skeptic about the mission.

John Spencer, founder of the Space Tourism Society, told ABC News, “I respect their interest and wish them well, but I really just don’t take them seriously. I have a bet with a friend of mine whether it’s two or three years before Mars One fades away.”

“You need billions of dollars to do a Mars mission. There have been companies over the last 20 years that have raised money and tested some engines, but then they realize how hard it is,” noted Spencer. “It’s difficult, even for the best of the best with an unlimited budget.”

However, Spencer also believes this to be a good experience. He said, “They proved that there’s an interest worldwide to explore Mars, that it’s no one country’s adventure but Earth’s adventure. They garnered the imagination of millions of people, and that’s actually pretty good.”

According to Lansdorp, a communications satellite could be installed on Mars in less than five years. It would transmit images, data and live video back to Earth, displaying signs of alien life or changing weather conditions.

A lander will be positioned on Mars and transmit signals to a satellite in synchronized orbit. The lander will be built by Lockheed Martin and based on the one used in the 2007 NASA Phoenix mission, also built by the group.

Lansdorp said at a news conference in December that, “Anyone with internet access will be able to see what the weather’s like on Mars.”

In ten years the first team of four is scheduled to make the trip to Mars. By the year 2033, the colony could reach 20 settlers. In 2015, the selected candidates will be subjected to an eight-year training program to learn to deal with long periods of isolation.

The journey to Mars will take approximately 200 days when launched, depending on the planet’s position in orbit.

Study On Pregnancy And Alcohol Fails To Take Psychological Factors Into Account

“It is OK to drink a little bit of alcohol during pregnancy” or “a pregnant woman should not touch alcohol at all during her pregnancy”. These statements represent the contradictory conclusions that large population studies on pregnancy and alcohol can reach. Psychologist Janni Niclasen has just defended her PhD thesis on the subject at the University of Copenhagen.
She was surprised by the different results that were reached, and she decided to get to the bottom of the results by following up on the large population study done by the Danish Health and medicine authorities called “Danish National Birth Cohort” (“Bedre Sundhed for Mor og Barn”) which gathered information about alcohol and pregnancy. And her results are surprising.
“My study shows, among other things, that the children of mothers who drank small quantities of alcohol – 90 units or more – during their pregnancies show significantly better emotional and behavioural outcomes at age seven compared to children of mothers who did not drink at all. At first sight this makes no sense, since alcohol during pregnancy is not seen as beneficial to child behaviour. But when you look at the lifestyle of the mothers, you find an explanation. Mothers who drank 90 units or more of alcohol turn out to be the most well educated and healthiest lifestyle over all”, says Janni Niclasen. She explains the result further:
“Further, it is a question of taking account of childhood related psychological factors like attachment between mother and child in this type of study. This is a problem because we know that i.e. attachment is a very significant predictor for child cognitive and mental health. Therefore it should be taken into account in our statistical analysis”, she says.
Janni Niclasen only examined the alcohol consumption of women who drank small quantities of alcohol during pregnancy. Therefore her study does not show the effect on children whose mothers drank large quantities of alcohol during pregnancy.
The problem of missing variables
Janni Niclasen’s study looks at the results of a large population study conducted between 1996 and 2002. In this study over 100,000 pregnant Danish women were interviewed at three separate occasions about their consumption of alcohol twice in pregnancy and again at age six month of their child. They were also asked among other things about their educational background and lifestyle.
37,000 women who had answered all three rounds of questions were contacted again when their children were now seven years old. At this point in time the aim was to measure the scores of the children on the so-called Strengths and Difficulties Questionnaire (SDQ), which is a tool for screening children and adolescents’s behaviour, emotions and peer relationships. It is these replies from the study that Janni Niclasen used in her research.
“My conclusion was that seven year olds born to mothers who drank small quantities of alcohol during their pregnancies did significantly better emotionally and behaviourally at age seven that the children of mothers who did not drink anything during pregnancy. However it is important to emphasise that this is not an invitation to pregnant women to drink alcohol”, she says.
Among other things it is the failure to include psychologically, socio-demographic and lifestyle factors that makes her question the findings of the large statistical studies about pregnancy and alcohol.
“It is already difficult to control for all the lifestyle factors as it is, and when, on top of that, information is lacking about psychological variables like for instance attachment and intelligence, you need to be careful when interpreting the results”, she says.
Janni Niclasen’s PhD thesis consists, in part, of five scientific papers out of which three are about alcohol and pregnancy. Four of the papers have already been published in scientific journals.
Facts on the scientific papers on alcohol and pregnancy:
Paper 1
Prenatal exposure to alcohol, and gender differences on child mental health at age seven years (2013). Journal of Epidemiology and Community Health, 11. November 2013.
Summary of the conclusions in the paper: children born to mothers engaging in binge drinking (defined as an intake of five or more units of alcohol on a single occasion), there is a slight, but statistically significant, association with behavioural and emotional development at age seven of their children.
Overall, we found no significant associations between exposure to low dose of alcohol and emotional and behavioural development at age seven However we did find that the children with the most favourable outcomes at age seven were the children of the mothers who drank the highest quantities during pregnancy. The children with the poorest outcomes were those whose mother abstained during pregnancy. It was concluded that the cause of this was due to the large discrepancies found in the background characteristics of the participants.
Paper 2
Niclasen, J, Teasdale, T., Strandberg-Larsen, K., Nybo Andersen, AM. Is Alcohol Binge Drinking in Early and Late Pregnancy associated with Behavioural and Emotional Development at Age Seven? (accepted for publication in European Journal of Child and Adolescent Psychiatry, December 2013)
Summary of conclusion: It was concluded that that it is worse for the behavioural development of the child if the mother had engaged in binge drinking in the large part of pregnancy compared to binge drinking in the early part of pregnancy or no binge drinking.
Paper 3
Drinking or Not Drinking in Pregnancy: The Multiplicity of Confounding Influences. Alcohol and Alcoholism (2013).
Janni Niclasen’s study only includes pregnant women who drank small quantities of alcohol. The group that she defines as having been exposed to high quantities of alcohol are women who drank 90 units of alcohol or more (within this group of women she does not distinguish between women who drank 90 units of alcohol and women who drank a lot more).
Summary of the conclusion: The study finds that there are big differences in lifestyle factors between women who drink alcohol during pregnancy and women who do not drink alcohol during pregnancy. There are significant differences on for example educational level and important lifestyle factors. The conclusion is that these factors are insufficiently controlled for in the statistical analyses investigating prenatal exposures to low doses of alcohol and child development. This conceals the (small) effects you might expect from the prenatal exposure to low doses of alcohol. Lifestyle factors, among other things, might explain the inconsistencies in the literature investigating the impact of alcohol on child mental health later in life.
Facts on the scientific papers on alcohol and pregnancy:
Facts on the population study:
The “Danish National Birth Cohort (“Better Health for Mother and Child” in Danish: “Bedre Sundhed for Mor og Barn”/BSMB) is a birth cohort that is administered by the Danish Health and Medicines Authority, and includes information on more than 100,000 pregnancies. Between 1996 and 2002 all pregnant women were given the option to participate in the study.
The women were invited to participate in interviews at the following times:
1) Two telephone interviews during the first and second part of pregnancy. The questions are concerned with her health, alcohol consumption, smoking habits, medicine intake and other lifestyle factors as well as her socio-economic status
2) Two interviews conducted at age 6 and 18 months of the child in which she was asked about her lifestyle during the final part of pregnancy and her child’s health and development
3) Questionnaires filled in at age seven of the child.

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Study Suggests Tripling Tobacco Tax To Curb Smoking

Brett Smith for redOrbit.com – Your Universe Online

While it may cause some grumbling among smokers, high taxes on tobacco products have been shown to be an effective way to reduce the use of cigarettes. A research review published Monday in the New England Journal of Medicine has called for these prohibitive taxes to be taken a step further – suggesting that a tripling of taxes could cut the number of smokers by one-third and stop 200 million premature deaths.

Such a large tax increase, which would double the retail price of cigarettes in some countries, would be especially helpful in low- and middle-income countries where the fairly cheap cigarettes fuel a rising smoking rate, the study authors said.

Study author Dr. Phabhat Jha said the proposed tax increase would also be effective in more affluent countries. He noted that France cut its cigarette consumption in half between 1990 and 2005 by raising taxes well above the rate of inflation. The prohibitively high taxes would also narrow the price gap between the cheapest and most expensive cigarettes, encouraging cessation instead of simply downgrading brands.

“Death and taxes are inevitable, but they don’t need to be in that order,” said Jha, a public health professor at the University of Toronto. “A higher tax on tobacco is the single most effective intervention to lower smoking rates and to deter future smokers.”

Agreements made at the United Nations General Assembly and the World Health Organization’s (WHO) 2013 Assembly were focused on lowering the popularity of smoking by about one-third by 2025, effectively reducing premature deaths from lung cancer and other chronic diseases.

“Worldwide, around a half-billion children and adults under the age of 35 are already – or soon will be – smokers and on current patterns few will quit,” said study author Richard Peto, an epidemiologist at the University of Oxford. “So there’s an urgent need for governments to find ways to stop people starting and to help smokers give up.”

“This study demonstrates that tobacco taxes are a hugely powerful lever and potentially a triple win – reducing the numbers of people who smoke and who die from their addiction, reducing premature deaths from smoking and yet, at the same time, increasing government income,” Peto added. “All governments can take action by regularly raising tobacco taxes above inflation, and using occasional steep tax hikes starting with their next budget. Young adult smokers will lose about a decade of life if they continue to smoke – they’ve so much to gain by stopping.”

The study team emphasized that studies from the past year have found that men and women who began smoking as children and continued throughout adulthood had two or three times the mortality rate of non-smokers. Both Jha and Peto published papers in 2012 showing that people who stopped smoking when they were young were able to regain nearly ten years of life they might otherwise have lost.

According to the Centers for Disease Control and Prevention (CDC), smoking cessation reduces the risk of lung cancer, coronary heart disease, declining lung function and chronic obstructive pulmonary disease (COPD). Women who stop smoking in their reproductive years have been shown to reduce their risk for infertility.

Study Shows Vitamin E Slows Alzheimer’s Symptoms

Brett Smith for redOrbit.com – Your Universe Online

A new study published in The Journal of the American Medical Association on Wednesday has indicated that taking vitamin E supplements during the early stages of Alzheimer’s can slow the progression of cognitive decline symptoms.

Study researchers said they found the supplement allowed patients’ to maintain their ability to perform basic tasks by an average of about six months.

“It will be very interesting to see to what extent this will change practice,” study author Dr. Maurice Dysken told Reuters. “I think it will, but we’ll have to see how people in the field such as providers view the findings and patients too.”

Previous research had revealed that the vitamin hampered the disease’s progression in people with a moderately severe Alzheimer’s. However, vitamin E had not been shown to be an effective treatment for people with a pre-Alzheimer’s condition called mild cognitive impairment.

For the new study, the researchers recruited over 610 volunteers between August 2007 and March 2012 from 14 Veterans Affairs medical centers. Participants were arbitrarily assigned to one of four groups.

One group took a daily supplement containing 2,000 International Units (IU) of vitamin E. A second group received the Alzheimer’s medication memantine. A third group took both the supplement and the drug and the final group took a placebo.

After an average of approximately 2.3 years, the study team found that only the group taking the daily supplements showed a slower decline in the ability to perform daily tasks such as bathing or dressing themselves compared to the placebo group.

“I think it’s a well done study, but I think the results are modest,” said Dr. Ronald Petersen, director of the Alzheimer’s Disease Research Center at the Mayo Clinic. He noted that a previous study showed higher risk of death among people taking vitamin E and effect that was not seen in the new JAMA study.

“Nevertheless, it’s out there and it’s published,” he said. “You have to let people know it could be a small risk.”

The researchers warned that their study shouldn’t be seen as way of preventing Alzheimer’s.

“This is not a prevention trial,” Dysken said. “We were enrolling patients with a diagnosis and what we’re looking at is slowing the rate of progression. It does not stop it.”

In an editorial published alongside the study, a trio of experts agreed that the study simply showed a modest way to treat symptoms of Alzheimer’s.

“Considering the difficulties inherent in trying to treat rather than prevent very high-prevalence diseases and the limitations thus far of the therapeutic efforts for people with AD, shifting to more emphasis on prevention seems warranted,” they wrote.

“I think this is an example that we’re really doing research across the entire spectrum of the disease,” the experts added.

One of the editorial authors, Dr. Denis Evans of Rush University Medical Center in Chicago, said he was considering mentioning the study to his patients as something with which they could consider supplementing their regular treatment regimen.

“I think a six-month delay will be meaningful for many – if not most – patients,” Dysken said. “But it really does depend on the conversation that needs to be had between patient and primary care provider.”

Researchers Map Physical Changes Caused By Different Emotions

redOrbit Staff & Wire Reports – Your Universe Online

That tightening you feel in your chest when you’re anxious, or that warm sensation that washes over your entire body when you feel loved – those sensations aren’t just in your head, according to new research which maps the physiological changes that accompany different emotions.

The study, which appears in the journal Proceedings of The National Academy of Sciences, said that feelings can alter both our mental and physical states in response to various challenges detected in the environment around us. The sensations that arise due to the body changes are an essential part of the emotional experience, and the authors of the study reveal exactly how these emotions are experienced throughout the body.

Dr. Lauri Nummenmaa, an assistant professor in the Aalto University Department of Biomedical Engineering and Computational Science, and colleagues discovered that the emotions most commonly experienced by people trigger strong sensations in the body. Furthermore, they found that the body maps of these sensations were topographically different based on the different emotions experienced.

“The sensation patterns were, however, consistent across different West European and East Asian cultures, highlighting that emotions and their corresponding bodily sensation patterns have a biological basis,” the university explained in a statement. The study was conducted online, and involved over 700 individuals from Finland, Sweden and Taiwan, each of whom were asked to color in the parts of the body when they felt activity increasing or decreasing.

Dr. Nummenmaa and his colleagues conducted five experiments, each involving between 36 and 302 of the 701 total participants. Those subjects reported bodily sensations linked to six basic and seven complex emotions, as well as a neutral state, and colored in the images on a computer based on what they experienced.

Using linear-discriminant analysis, the investigators found that the study participants classified neutral state and basic emotions with a mean accuracy of 72 percent. Furthermore, they were able to discriminate all emotions from each other (complete classification) more than one-third of the time, the study authors reported.

According to Dr. Nummenmaa, by adjusting our bodily states, emotions help prepare us to react quickly to dangers as well as to more pleasurable social interactions present in the environment around us. Awareness of these physical changes could help trigger conscious emotional sensations such as happiness, he added.

“The findings have major implications for our understanding of the functions of emotions and their bodily basis. On the other hand, the results help us to understand different emotional disorders and provide novel tools for their diagnosis,” the university said. The study was funded in part by the European Research Council (ERC) and the Academy of Finland.

Image 2 (below): Different emotions are associated with discernible patterns of bodily sensations. Credit: Dr. Lauri Nummenmaa, Aalto University

Plants Develop Competitive Strategies In Extreme Desert Environments

redOrbit Staff & Wire Reports – Your Universe Online

Plants in extreme desert environments develop effective strategies to compete for the area’s limited resources, according to new research out of the University of Arizona published in the American Journal of Botany.

Although deserts are often thought of as barren, inhospitable places, numerous plants and animals have adapted to this harsh environment, where they are often forced to compete with rivals for scarce resources such as water.

In natural environments, water availability is typically stochastic, with some years and localities receiving lots of rain, while other areas and times remain dry. During dry years, plants that are more efficient with water use often are the most successful. But this comes at a price, with efficient plants struggling more against faster-growing plants during wetter years.

In deserts, where variable weather is common, plant community patterns can change between wet and dry years, with high densities and a diversity of plants in wet years, and a reduction in both quantity and number of species in dry years.

The University of Arizona researchers investigated the effect those variables – competition and water usage – have on plant communities in the Sonoran Desert.

Jennifer Gremer and colleagues looked at three native, widespread and abundant plants that utilize different strategies to survive in this variable desert environment by occupying different positions on a trade-off spectrum between relative growth rate and water use efficiency.

The researchers interpreted how well the plants responded to different conditions, such as high and low water availability and competition, by measuring plant biomass of shoots, stems, and roots.

The results revealed that all species did better in wet environments when grown alone. However, water availability had additional effects when competition was included, with faster growth rate species less affected by competition in wet environments, and more efficient species less affected in dry environments.

“These observed effects explain the patterns seen in long-term data and are counterintuitive to many readers because some plants might actually do better when conditions are not optimal,” said Gremer.

However, in most settings of this research, the intermediate species had the largest overall competitive effect, and also had the highest level of intraspecific competitiveness.

This suggests a reason why the intermediate species does not competitively exclude other species, the researchers said.

The study’s results confirmed that some plants are better at competing in wet environments, while others are better in dry environments. The researchers were able to successfully predict this pattern by looking at important characteristics – water use efficiency and growth rate – to determine how the plants would react to limited resources.

“A major challenge in ecology is to find traits or characteristics that can be used as indicators to predict how plants will respond without having to study each and every individual species,” Gremer said. “In our system, we have had remarkable success at doing that.”

However, these traits may not be the most important factors in all systems, she added.

Additional understanding of how these traits mediate competition under different conditions, for both native and non-native plants, is important considering the threats of climate change and invasive species.

“We need to understand the role of competition and water availability in long-term patterns of diversity in our system,” Gremer said. “This has implications for understanding responses to climate change and predicting what these communities will look like in the future.”

The researchers noted that with the onset of climate change, the deserts are getting hotter and drier, and have been a focus of global change models.

“The Sonoran Desert has already begun to exhibit such changes,” Gremer said. “Specifically, the composition of plant communities has changed over the last 30 years, with species that have high water-use efficiency becoming more common and species with high relative growth rates declining.”

Outgoing NYC Mayor Michael Bloomberg Signs Indoor E-Cigarette Ban

redOrbit Staff & Wire Reports – Your Universe Online

In one of his final acts as the mayor of New York City, Michael Bloomberg signed a law expanding the Big Apple’s ban on indoor smoking to include electronic cigarettes, various media outlets have reported.

According to a CNN.com blog, Bloomberg gave his seal of approval Tuesday to an initiative expanding the city’s Smoke Free Air Act. Now, use of the battery-operated devices will be prohibited in offices, bars, restaurants and even in city parks.

While Columbia University professor Amy L. Fairchild told CNN’s Poppy Harlow that smoking is “one of the most important public health problems” in the US today, Business Insider’s Dylan Love counters that e-cigarette supporters would be “sure to hate this [new law] because the ‘smoke’ coming out of an electronic cigarette is actually nothing more than water vapor.”

“Smokers turn to them to get their nicotine fix in bars and restaurants and funeral homes and operas and anywhere else that smoking is banned,” Love added. Now, however, since the devices “will be legally identified” as equal to cigarettes, “e-cig smokers will no longer enjoy the loophole/exception” that permitted their use anywhere.

After Bloomberg signed the bill, two protesters immediately lit up cigarettes in the City Hall Blue Room in protest, according to the New York Daily News. One of those protestors was Citizens Lobbying Against Smoker Harassment (CLASH) founder Audrey Silk, who had her cigarette seized by security.

“Good people disobey bad laws,” Silk told reporter Erin Durkin. Bloomberg, who Durkin described as “nonplussed” by the protest, said, “We just don’t permit smoking in public buildings. I think it’s time to leave. Thank you very much.” The new bill was one of 22 signed by the outgoing mayor on Tuesday, with the others including a ban on Styrofoam and a measure designed to reduce toxic emissions from trade waste delivery vehicles.

However, it is the bill equating e-cigarettes to the actual tobacco-based products they are designed to replace that has generated the most media buzz, due largely to the controversy surrounding the devices themselves.

While supporters tout that they are safe and effective replacements for cigarettes, a group of 40 state attorneys general petitioned the US Food and Drug Administration (FDA) in September, calling upon the agency to begin regulating e-cigarettes in much the same way that they do tobacco products.

Earlier in December, a poll of American parents conducted by the University of Michigan found that nearly half of them were concerned that their sons and daughters will use e-cigarettes, and 44 percent of those polled feared that the devices will encourage children and teenagers to start using actual tobacco products. Furthermore, 86 percent of those adults were in favor of prohibiting sale of the devices to anyone under the age of 18.

Decreasing Cloud Cover Could Mean Higher Global Temperatures

[ Watch the Video: Fewer Clouds Could Mean Hotter Temperatures ]

Gerard LeBlond for www.redorbit.com – Your Universe Online

A study by the University of NSW (UNSW) claims that the Earth’s temperatures will rise 7.2 degrees Fahrenheit by the end of the century. Earlier predictions that were based on cloud cover forecast a smaller increase and were most likely wrong, according to the study, to be published January 1, 2014 in the journal Nature. This could mean catastrophic results for agriculture, especially for the warmer climates.

The team of researchers claim they have discovered the key to predicting cloud behavior and it will not be as helpful as first predicted. The prediction is for carbon dioxide levels to double, resulting in a 2.7-9F jump in the Earth’s temperature.

Maurice Newman, a top business advisor to Prime Minister Tony Abbott, has produced some controversy, saying that global warming is a “delusion” and climate change policies are destroying Australia’s manufacturing industry.

According to the The Australian newspaper,  Mr. Newman said it was “climate change madness,” as cited by The Sydney Morning Herald.

Australia ended the 2013 year as the hottest year in more than a century topping the record high temperatures of 2005.

In the report, lead author Steven Sherwood, professor at UNSW’s climate change research center, stated the biggest uncertainty for climate change modeling for the past 25 years is the changes in clouds. He said it “cracks open one of the biggest problems in climate science.”

CO2 levels have risen by 41 percent since pre-industrial times and temperatures rose by 0.8C since around 1880. “This degree of warming would make large swaths of the tropics uninhabitable by humans and cause most forests at low and middle latitudes to change to something else,” Sherwood said. It would also take Earth “back to the climate of the dinosaurs or worse, and in a geologically minuscule period of time—less than the lifetime of a single tree.”

Ocean clouds were examined in the study; researchers found that at low altitudes they reflect sunlight resulting in lower temperatures. The mix of higher, drier air will cause thinning of the ocean clouds and thus reduce their cooling effect.

Climate scientists from Japan’s National institute for Environmental Studies stated, “So can we declare the long-running debate about climate sensitivity to be over? Unfortunately, ‘Sherwood and colleagues’ study represents a big advance, but questions persist.”

Sherwood added, “We’ve been hoping for the best and not planning for the worst.”

According to Phys.org, observations show that water vapor is drawn up into the atmosphere by evaporation. This process creates heavy rain clouds if it rises to 9 miles; if it rises only a few miles it will return to earth without forming rain clouds.

When water vapor only rises a few miles, the cloud cover is reduced because the vapor is pulled away from the high clouds. When the process of climate models match the real world observations, water vapor is taken to a broader range of heights, causing fewer clouds as the climate warms.

This will increase heat entering the atmosphere thus increasing the risk of carbon dioxide into our climate. Models show within 50 years the carbon dioxide levels doubling and raising Earth’s temperatures.

“Climate sceptics [sic] like to criticize climate models for getting things wrong, and we are the first to admit they are not perfect, but what we are finding is that the mistakes are being made by those models which predict less warming, not those that predict more,” said Prof. Sherwood.

“Rises in global average temperatures of this magnitude will have profound impacts on the world and the economies of many countries if we don’t urgently start to curb our emissions.”

New Hubble Data Offer More Details About Cloudy Alien World

[ Watch the Video: New Secrets Revealed About Cloudy Exoplanet ]
Lee Rannals
for redOrbit.com – Your Universe Online

Scientists using data collected by the Hubble Space Telescope have discovered new cloudy details about an alien world.
The team said that GJ1214b is a super-Earth class planet because its mass is intermediate between Earth and Neptune. The group of scientists analyzed the characteristics of the exoplanet and published their results in the journal Nature.
Previous research showed that the atmosphere on GJ1214b could consist entirely of water vapor or some type of heavy molecule. These past studies also found that the alien world could contain high-altitude clouds that prevent the observation of the planet’s surface. However, the latest study provides even more details of GJ1214b after using 96 hours of Hubble Space Telescope observations over 11 months.
GJ1214b is located just 40 light-years from Earth towards the constellation Ophiuchus. The exoplanet is the most easily observed super-Earth for scientists because of its proximity to our solar system and the small size of its star. The alien world orbits its parent star every 38 hours, giving scientists plenty of opportunity to study its atmosphere.
The researchers were able to use Hubble to precisely measure the spectrum of the planet in near-infrared light. They found clear evidence of clouds blanketing the planet. These clouds hide information about the composition and behavior of the lower atmosphere and surface.
“We really pushed the limits of what is possible with Hubble to make this measurement,”stated Laura Kreidberg, a third-year graduate student at the University of Chicago and first author of the new paper. “This advance lays the foundation for characterizing other Earths with similar techniques.”
Jacob Bean, an assistant professor at the University of Chicago and the project’s principal investigator, said Hubble really helped the team analyze this exoplanet.
“I think it’s very exciting that we can use a telescope like Hubble that was never designed with this in mind, do these kinds of observations with such exquisite precision, and really nail down some property of a small planet orbiting a distant star,” Bean said in a statement.
Hubble observations from 2012 and 2013 allowed the team to rule out a cloud-free atmosphere made of water vapor, methane, nitrogen, carbon monoxide, or carbon dioxide. Instead, the team says this planet contains high-altitude clouds with an unknown composition. However, models predict that the clouds are potentially made out of potassium chloride or zinc sulfide.
“You would expect very different kinds of clouds to form than you would expect, say, on Earth,” Kreidberg said.

Talking Sex With Teens

Brett Smith for redOrbit.com – Your Universe Online

Just like a visit to the doctor, a frank and honest conversation about sexual health can be uncomfortable at times. The American Academy of Pediatrics (AAP) now recommends that physicians take more time in their annual check-ups with teens to discuss sexual issues. However, less than two thirds of doctors and teenage patients actually have this conversation and when they do it typically lasts less than one minute – according to a study published on Monday in the journal JAMA Pediatrics.

“It’s hard for physicians to treat adolescents and help them make healthy choices about sex if they don’t have these conversations,” said study author Stewart Alexander, an associate professor of medicine at Duke University. “For teens who are trying to understand sex and sexuality, not talking about sex could have huge implications.”
The AAP suggests that annual check-ups are key opportunities to discuss sexual development, sexually transmitted infections and unwanted pregnancy prevention – in addition to other health issues such as such as smoking and drinking alcohol.
Study researchers collected information by surveying teens or physicians after annual visits. The team also made audio recordings of the naturally occurring conversations that took place during annual visits or physicals for over 250 adolescents, ages 12 to 17.
The study team found that physicians broached the issue of sex 65 percent of the time, with an average conversation length of 36 seconds. All of these sexual health conversations were initiated by the physicians. “We saw that physicians spent an average of 22.4 minutes in the exam room with their patients. Even when discussions about sex occurred, less than 3 percent of the visit was devoted to topics related to sex,” Alexander said. “This limited exchange is likely inadequate to meet the sexual health [and pregnancy/STD] prevention needs of teens.”
The researchers found that, perhaps unsurprisingly, the teens were extremely reluctant to discuss sex. When the doctors brought up the topic, about half of the teens simply responded to yes or no questions with limited discussion, and 4 percent of teens had extended discussion with their physicians. The team also found that female adolescents were more than twice as likely to discuss sexual issues than male teens.
“The implication for males is troublesome because as they get older, they become less likely to routinely see physicians outside of checkups or sports physicals,” Alexander said. “Thus, the annual visits become essential and are perhaps the only opportunity for physicians to address the sexual behaviors of adolescent boys.”
When males in the study did discuss sexual issues, they were more likely to be older teens. Current guidelines recommend that doctors start these conversations in early adolescence before teens are sexually active.
“There’s a saying that it’s always better to have the conversation two years too soon than one day too late,” Alexander said. “If you’re one day too late, the teens may already be engaging in sexual behaviors that have consequences for them.”
“Although adolescents have access to information on sex from a variety of sources, physicians could do more in support of teens’ healthy sexual development,” he added. “Initiating conversations demonstrates to adolescents that talking about sex is a normal part of a checkup, and may open the door for more extensive discussions.”

Calorie Content Info Will Soon Be On Vending Machines Everywhere

Gerard LeBlond for www.redorbit.com – Your Universe Online
Next year vending machines will be required to display the calorie information for the products inside as part of Obamacare.
Christine Romans from CNN reports, “The new rules apply to more than 10,000 vending machines companies nationwide that operate 20 or more machines.” In total, about five million vending machines will be affected.
The cost to the companies that supply these machines will be an initial $25.8 million and an estimated $24 million yearly.
The FDA says that if just 0.2 percent of obese people ate 100 fewer calories per week, there would be a savings of $24 million a year in health care costs.
According to the National Automatic Merchandising Association, the initial investment of $2,400 plus an annual cost of $2,200 is a substantial amount for small companies who only profit a few thousand yearly.
Eric Dell, the vice president of the group said, “The money that would be spent to comply with this – there’s no return on the investment.”
Companies will have one year to comply with these new regulations, but the group wants the government to allow more flexibility.
The information may be displayed electronically or some companies may just place stickers on the machine.
Brennan Food Vending Services, a small company in Londonderry, Ohio, doesn’t like the new rules. Owner Carol Brennan, who employs five people and services hundreds of machines, says she’ll be forced to limit items so her employees don’t spend a lot of time updating the calorie information.
“It is outrageous for us to have to do this on all our equipment,” she stated. “How many people have not read a label on a candy bar?” she added. “If you’re concerned about it, you’ve already read it for years.”
A man from Seattle, Kim Gould, said while standing at a vending machine with his 12-year-old daughter, “People have their reasons they eat well or eat poorly.”
Gould said he only makes purchases when he is hungry and when there are no other options. He added, “How do we know people who are buying candy in the vending machines aren’t eating healthy 99 percent of the time?”
A New York study in 2011 found that one in six people look at nutritional information at restaurants, according to an AP report appearing in USA Today. Those who did look at the nutritional content ordered a meal with about 100 fewer calories. Another recent study in Philadelphia determined there was no difference in calorie consumption after the city’s labeling law took effect.
Brian Ebel, an assistant professor at New York University’s department of population health and medicine, said, “There is probably a subset of people for whom this information works, who report using it to purchase fewer calories, but what we’re not seeing though is a change at an overall population level in the number of calories consumed.”
He also noted that the implement of labels on vending machines might be just as ineffective.
In 2005, the vending machine group produced a “Fit Pick” system that includes stickers that display fat and sugar content on the front of products. This system is used by almost 14,000 businesses, schools, government agencies and all branches of the military.

You Eat What You Are – How Social Norms Affect Diet Choices

Brett Smith for redOrbit.com – Your Universe Online

While you may have heard the saying “you are what you eat,” a new research review in the Journal of the Academy of Nutrition and Dietetics has found that, in a sense, you actually eat what you are.

For their review, the researchers considered fifteen different studies from eleven journals. Eight of the studies looked at how food norm information affected consumption by participants. Seven other studies examined the effects of food selection norms on how people choose what foods to eat.

The review showed that a person’s dietary choices are largely influenced by their social identity. For example, if participants were told that others in their group were making low-calorie or high-calorie food choices, it considerably increased the odds that participants would make similar choices.

“It appears that in some contexts, conforming to informational eating norms may be a way of reinforcing identity to a social group, which is in line with social identity theory,” said study researcher Eric Robinson, from the University of Liverpool. “By this social identity account, if a person’s sense of self is strongly guided by their identity as a member of their local community and that community is perceived to eat healthily, then that person would be hypothesized to eat healthily in order to maintain a consistent sense of social identity.”

The research review also found that suggesting others ate large meals boosted food consumption by the participants. These effects were seen when participants ate alone or at work – and whether or not they were aware of any bias.

“Norms influence behavior by altering the extent to which an individual perceives the behavior in question to be beneficial to them. Human behavior can be guided by a perceived group norm, even when people have little or no motivation to please other people,” Robinson said. “Given that in some studies the participants did not believe that their behavior was influenced by the informational eating norms, it seems that participants may not have been consciously considering the norm information when making food choices.”

The review authors called for additional studies to be conducted on how people make decisions about food consumption. They also called for research on how public policy and messaging could be modified to encourage healthy choices.

“The evidence reviewed here is consistent with the idea that eating behaviors can be transmitted socially,” Robinson said. “Taking these points into consideration, the findings of the present review may have implications for the development of more effective public health campaigns to promote ‘healthy eating.’ Policies or messages that normalize healthy eating habits or reduce the prevalence of beliefs that lots of people eat unhealthily may have beneficial effects on public health.”

Two studies published in November found that another non-food factor, bowl size, could bias children toward requesting larger portions and eating more food. Previous research has shown that bigger dishes cause adults to eat bigger portions and the new report found the same phenomenon for children – influencing them to eat 52 percent more in one of the new studies.

Slow Eating Can Lead To Less Hunger Later On

Brett Smith for redOrbit.com – Your Universe Online
You’ve probably been told to slowly chew your food slowly during mealtime, and a new study published in the Journal of the Academy of Nutrition and Dietetics found that eating slowly can help to reduce feelings of hunger later in the day.
The study team set out to investigate what, if any, connection exists between the rate of eating a meal and total calorie consumption, as previous research has indicated that a rapid eating rate may weaken the feedback mechanisms that regulate how much we eat.
In the study, researchers at Texas Christian University (TCU) examined how the rate of eating affects calories consumption in both healthy-weight and overweight or obese subjects. Participants were asked to consume two meals in a controlled setting. The first was eaten at a slow, deliberate pace: participants were told they had no time constraints and instructed to pause and put the spoon down between bites. For the second, ‘fast’ meal, participants were told they had a time constraint, should take large bites, needed to chew quickly, and not pause between bites.
In addition to tracking how many calories were eaten, the investigators also collected data on pre- and post-meal hunger and satiation, as well as water consumption during the meals.
At the conclusion of the trials, the researchers said that they suspected that their results were tainted by participants’ sense of being observed.
“Slowing the speed of eating led to a significant reduction in energy intake in the normal-weight group, but not in the overweight or obese group. A lack of statistical significance in the overweight and obese group may be partly due to the fact that they consumed less food during both eating conditions compared to the normal-weight subjects,” said lead author Meena Shah, a professor of kinesiology at Texas Christian University. “It is possible that the overweight and obese subjects felt more self-conscious, and thus ate less during the study.”
The researchers discovered that the healthy-weight subjects had a statistically significant drop in caloric consumption during the slow meal compared to the fast meal: 88 kcal less for the normal weight group, compared to only 58 kcal less for the overweight or obese group.
Despite a potential tainting of the caloric consumption aspect of the study, researchers discovered that both groups reported being less hungry later on after the slow meal but not after the fast meal.
“In both groups, ratings of hunger were significantly lower at 60 minutes from when the meal began during the slow compared to the fast eating condition,” Shah said. “These results indicate that greater hunger suppression among both groups could be expected from a meal that is consumed more slowly.”
The study team also found that both groups drank more water during the slow meal, 12 ounces compared to 9 ounces during the fast meal.
“Water consumption was higher during the slow compared to the fast eating condition by 27 percent in the normal weight and 33 percent in the overweight or obese group,” Shah said. “The higher water intake during the slow eating condition probably caused stomach distention and may have affected food consumption.”

Lost Photos Of Shackleton’s Antarctic Expedition Found In Cabin

redOrbit Staff & Wire Reports – Your Universe Online

Undeveloped photos taken during one leg of Ernest Shackleton’s Imperial Trans-Antarctic Expedition have been discovered in the hut of another polar region explorer, various media outlets reported on Sunday.

According to CNN’s Ralph Ellis, the negatives were discovered in an expedition hut used by British explorer Capt. Robert Falcon Scott during his unsuccessful 1912 attempt to become the first man to reach the South Pole.

The pictures, which were discovered by a team from New Zealand’s Antarctic Heritage Trust, “were taken during Ernest Shackleton’s 1914-1917 Ross Sea Party, another failed exploration whose members were forced to live in Scott’s hut after their ship blew out to sea,” Ellis said.

“The cellulose nitrate negatives were found clumped together in a small box in the darkroom of Herbert Ponting, Scott’s expedition photographer,” he added. Officials from the Trust took the negatives back to New Zealand, where it was discovered that there were a total of 22 images, many of which were damaged.

The Ross Sea Party was tasked with leaving supplies for the second leg of Shackleton’s land crossing, explained Duncan Geere of Wired UK. Even after losing their ship, they continued to set up food and equipment stations, unaware that the expedition had already been called off.

“By the time the Aurora was able to return to rescue the men the following year, three had died, including Arnold Patrick Spencer-Smith, the party’s photographer,” Geere said. The photos that were recovered likely belonged to Spencer-Smith, and showed views of Ross Island, McMurdo Sound and some of the expedition members.

Nigel Watson, executive director of the Antarctic Heritage Trust, told CNN that the pictures were “an exciting find,” adding that he and his colleagues “are delighted to see them exposed after a century.” The restored images are available for viewing on the organization’s official website.

The Antarctic Heritage Trust was also responsible for the 2010 discovery of three crates of whiskey and two crates of brandy under Shackleton’s 1908 base. Several bottles of those beverages were sent to the original distillers, where they were analyzed and the whiskey recreated. The crates were returned to their original location earlier this year.

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NASA’s Flexible Rover Could Be Used On Future Mission To Titan

redOrbit Staff & Wire Reports – Your Universe Online

While it might look like a squishable mess of ropes and tent poles, NASA’s proposed “Super Ball Bot” could hold the key to making landing a rover on another planet easier and far less expensive, according to a new report published last week in IEEE Spectrum, the journal of the Institute of Electrical and Electronics Engineers.

Under ideal circumstances, modern-day planetary rovers “can require careful choreography of multiple landing stages and involve parachutes, airbags, and retrorockets,” writer Rachel Courtland explained. Once landed, the vehicle would then have to traverse steep terrain that can make a journey slow and arduous.

However, researchers at NASA’s Ames Research Center told Courtland that they are working on a robotic exoskeleton that is flexible and capable of changing its shape – the aforementioned Super Ball Bot. The device will be able to land unassisted and is capable of absorbing impact, eliminating the need for landing gear.

The Super Ball Bot would have all of the scientific instruments required to complete its mission embedded directly into its exoskeleton, and as demonstrated by a prototype unit in recently-released video footage, the robot would be capable of changing the length of its cables in order to roll around a planet’s surface without requiring wheels.

“Made up of hollow cylindrical rods connected by flexible materials such as elastic cable, the clever design draws on the principles of ‘tensegrity’ (a combination of ‘tensional’ and ‘integrity’), allowing any impact to be safely absorbed along multiple paths,” Trevor Mogg of Digital Trends explained. NASA believes it could survive a 60-plus mile drop onto a planet’s surface.

Super Ball Bot is being co-developed by Vytas SunSpiral and Adrian Agogino at the Ames Intelligent Systems Division. Earlier this year, they were awarded a Phase II grant to continue the research, said Phys Org’s Nancy Owano.

According to RT.com, NASA is considering using it for an expedition on Neptune’s moon, Titan. Titan could be a good test for the rover, the website said, because the moon’s dense nitrogen atmosphere would cushion the vehicle’s fall, and it would likely have an easier time traveling on the surface than its traditional wheeled counterparts.

“Another advantage of NASA’s ball bot is its small size when packed, with the space agency envisioning sending hundreds of them on a single mission. Upon arrival their destination, the bots would be able to automatically spring into shape,” Mogg said.

While movement needs to be perfected before the new-type rovers could be deployed, “there’s an excellent chance that these remarkable collapsing robots will one day be rolling across faraway planets and moons, sending back information that could help us unlock the enduring mysteries of our solar system and beyond,” he added.

H1N1, Seasonal Flu Spreading Across South-Central US

redOrbit Staff & Wire Reports – Your Universe Online
The number of US states reporting widespread seasonal flu activity has more than doubled in the last week, and the H1N1 swine flu is the predominant strain of influenza in the south-central part of the country, the Centers for Disease Control and Prevention (CDC) said on Friday.
According to CNN’s Ashley Hayes, the states that are reporting an increase in flu activity being experienced in over 50 percent of their counties or geographical regions jumped from four to 10 last week. Previously, only Alabama, Louisiana, New York and Texas had reported widespread activity, but Alaska, Kansas, Massachusetts, Pennsylvania, Virginia and Wyoming have joined those states.
While the CDC’s flu activity measures only the spread of the flu and not the severity of the illness, Hayes noted six states (Alabama, Louisiana, Mississippi, Missouri, Oklahoma and Texas) have reported a high ratio of outpatient visits to doctors or hospitals associated with flu-like symptoms. CDC medical officer Dr. Michael Jhung told CNN that thus far it has been “a typical influenza season, if I can use that word.”
However, one aspect of the season that has not been typical is the fact that H1N1 has been the most commonly reported strain. In fact, according to Associated Press reporter Juan Carlos Llorca, the so-called swine flu has already resulted in 13 deaths in the Houston, Texas area, including one teenager.
Approximately 95 percent of the influenza A cases reported statewide have been H1N1, Llorca added.
Jhung told reporters the strain is “the same H1N1 we have been seeing the past couple of years and that we really started to see in 2009 during the pandemic,” and Steven Reinberg of HealthDay News explained this particular strain is different from other types of flu because “it tends to strike younger adults harder than older adults.”
“This year, because it’s an H1N1 season so far, we are seeing more infections in younger adults, and some of these folks have underlying conditions that put them at risk for hospitalization or death,” the CDC flu expert added. On the plus side, he noted this year’s version of the flu vaccine protects against swine flu.
The CDC expects flu activity to increase nationally over the next few weeks, and should reach peak levels during the first two months of 2014. While agency officials do not expect the spread of H1N1 to reach pandemic levels like it did four years ago, they nonetheless recommend vaccinations for anyone over the age of six months.