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Latest Brown University Stories

2013-02-13 15:04:21

In the journal PLoS Biology, a team of scientists reports experiments showing how the gene defect of Angelman syndrome disrupts neurological processes that may be needed for memory and learning. In tests in mice, the team showed that a novel compound could restore the healthy processes. In a new study in mice, a scientific collaboration centered at Brown University lays out in unprecedented detail a neurological signaling breakdown in Angelman syndrome, a disorder that affects thousands of...

2013-02-06 10:07:58

A study published Feb. 6 in the Journal of the American Medical Association finds that while more seniors are dying with hospice care than a decade ago, they are increasingly doing so for very few days right after being in intensive care. The story told by the data, said the study's lead author, is that for many seniors palliative care happens only as an afterthought. "For many patients, hospice is an 'add-on' to a very aggressive pattern of care during the last days of life," said Dr....

How Plant Communities Handle Stress
2013-01-31 15:01:30

Brown University Ecology is rife with predation, competition, and other dramatic “negative interactions,” but those alone do not determine the course life on Earth. Organisms sometimes benefit each other, too, and according to the Stress Gradient Hypothesis, their “positive interactions” become measurably more influential when ecosystems become threatened by conditions such as drought. Ecologists have argued about the hypothesis ever since Brown University ecologist...

2012-12-26 12:49:22

Practice may elevate chance of death, second heart attack When heart attack patients present in the emergency department with some degree of anemia, or anemic patients have a heart attack, physicians have a tendency, but not much guidance, about whether to provide a blood transfusion. The idea is that a transfusion could help more oxygen get to the heart. Recent national guidelines suggested that there simply isn't good evidence to encourage or discourage the common practice, but a new...

The Evolution Of Grass Photosynthesis
2012-12-26 05:22:06

Brett Smith for redOrbit.com - Your Universe Online In examining the differences in photosynthetic activity among certain types of grasses, researchers from Brown University found that some plants are positioned to take evolutionary advantage of certain situations. According to a report in the Proceedings of the National Academy of Sciences, Brown researcher Pascal-Antoine Christin spent two years analyzing the cellular anatomy of 157 living species of two different grass clades, BEP...

Fate Of Phosphorous Determined By Soil
2012-12-17 17:57:17

Brown University Brazil´s soybean yields have become competitive with those of the United States and Argentina, but the soil demands a lot of phosphorous, which is not renewable. In the United States, meanwhile, historical applications of the fertilizer have polluted waterways. What accounts for these problems? It´s the soils, according to a new study comparing agriculture in the three countries. Just 20 years ago, the soils of the Amazon basin were thought unsuitable for...

2012-12-05 12:55:24

Where the nonspecific thalamus meets the prefrontal cortex Inside the brains of mice and men alike, a relatively big football-shaped region called the thalamus acts like a switchboard, providing the prefrontal cortex, the part that does abstract thinking and decision-making, with most of its information. The thalamus's responsibility even includes helping the prefrontal cortex to maintain consciousness and arousal. Essential as this "thalamocortical" partnership is, neuroscientists have...

Delivering Meals To Seniors Keeps Them In Their Homes
2012-12-04 13:44:19

Brown University Many older adults need only a little support to stay in their homes, but when that isn´t available they can end up in an expensive nursing home where they don´t need most of the available services. According to a new study, states that invest more in delivering meals to seniors´ homes have lower rates of such “low-care” seniors in nursing homes, after adjusting for several other factors. The more states spend on home-delivered meals under the...

Variation In Sperm Length Is Not A Good Sign
2012-11-13 16:38:55

Brown University A new study published online in the journal Human Reproduction finds that the greater the inconsistency in the length of sperm, particularly in the tail (flagellum), the lower the concentration of sperm that can swim well. The finding offers fertility clinicians a potential new marker for fertility trouble that might trace back to how a patient´s sperm are being made. Perhaps variety is the very spice of life, but as a matter of producing human life, it could be...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.