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Latest Yale Stories

2009-04-16 15:35:19

A single crafty protein allows the deadly bacterium Salmonella enterica to both invade cells lining the intestine and hijack cellular functions to avoid destruction, Yale researchers report in the April 17 issue of the journal Cell. This evolutionary slight-of-hand sheds new insights into the lethal tricks of Salmonella, which kills more than 2 million people a year. "In evolutionary terms, this hijacking of cellular machinery to diversify the function of a bacterial protein is mind...

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2009-03-30 08:00:00

Observing how a child reacts to animated cartoons may aid in identifying autism, new research has implied. Babies normally start watching movement shortly after birth, and retrieve information from the things they observe, but children afflicted with autism usually do not. A study, available in the journal Nature, was conducted by showing two-year-olds simple animations linked with sound. In the Yale study, researchers fashioned five different kinds of animated children's games, like...

2009-03-24 11:44:00

Learners Around the World Gain Access to Academic Superstars NEW YORK, March 24 /PRNewswire/ -- Academic Earth, a social entrepreneurship venture focused on expanding the availability of high-quality educational opportunities for people around the globe, announced Tuesday the launch of its website at http://AcademicEarth.org. Academic Earth offers free access to online video of full courses and guest lectures from leading educational institutions including Yale, Harvard, and MIT. "The...

2009-03-19 09:38:44

Even in the midst of a growing economic crisis last fall, over 90 percent of Americans said that the United States should act to reduce global warming, according to a national survey released today by researchers at Yale and George Mason Universities. The results included 34 percent who said the United States should make a large-scale effort, even if it has large economic costs.Two-thirds of Americans said that the United States should reduce its emissions of greenhouse gases regardless of...

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2009-02-27 07:35:00

A team of Yale geologists has a new perspective on the greenhouse-to-icehouse shift where global climate changed from an ice-free world to one with massive ice sheets in the Antarctic nearly 34 million years ago. The study, which is detailed in the February issue of Science, disproves a long-held theory that massive ice growth was accompanied by very little global temperature change. According to the report, there was an estimated 18°F drop in latitude temperatures, and nearly as great a...

2009-02-26 08:48:40

Yale researchers have filled in a missing gap on the molecular road map of Alzheimer's disease. In the Feb. 26 issue of the journal Nature, the Yale team reports that cellular prion proteins trigger the process by which amyloid-beta peptides block brain function in Alzheimer's patients. "It has been a black box," said Stephen M. Strittmatter, senior author of the study and the Vincent Coates Professor of Neurology and director of Cellular Neuroscience, Neurodegeneration and Repair at the Yale...

2009-02-03 10:57:25

Most animals, like humans, have separate sexes "” they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then switch to the other sex, a phenomenon called sequential hermaphroditism. What remains a puzzle, according to Yale scientists, is why the phenomenon is so rare, since their analysis shows the biological "costs" of changing sexes rarely outweigh the advantages.A report by Yale scientists in the...

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2009-01-27 15:00:53

Three billion years ago, a "new" amino acid was added to the alphabet of 20 that commonly make up proteins in organisms today. Now researchers at Yale and the University of Tokyo have demonstrated how this rare amino acid "” and, by example, other amino acids "” made its way into the menu for protein synthesis. The study appeared in the December 31 advance online publication of the journal Nature. The rare amino acid the Yale researchers studied, pyrrolysine (Pyl), gave the...

2009-01-27 08:23:00

In a world of nutrition confusion, NuVal scores all foods to help consumers take charge of health BRAINTREE, Mass., Jan. 27 /PRNewswire/ -- As changes in leadership and social attitudes herald a new era of personal responsibility in the U.S., the nation's nutrition experts are urging consumers to take individual action in reversing the alarming trends of obesity, diabetes and heart disease. Still, as more and more Americans look to take charge of their diets and overall health, they often...

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2009-01-23 08:53:09

In an upcoming issue of Proceedings of the National Academy of Sciences, Yale researchers used newly developed mathematical models to analyze huge amounts of data on physical characteristics such as temperature and salinity in different ocean habitats and metabolic activity in marine micro-organisms. They were able to see in unprecedented detail how environment influences molecular changes within living organisms. As the technology dubbed "metagenomics" progresses, scientists might be able to...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'