Biologists probe the machinery of cellular protein factories
...s and how it evolved, but there are also practical reasons to pursue this research. Many of the most effective antibiotics work by targeting bacterial ribosomes, and findings by Noller and others have led to the development of novel antibiotics that hold promise for use against germs that have developed resi...The subtleties of tropical forest demise
...erm field studies," said Peres. "That's one of the reasons they're so universally underestimated. Even big parks and nature reserves are suffering in many important ways." "We immediately notice when forests burn or trees come crashing down, but not when frogs disappear or plants stop reproducing because ...Major new osteoporosis study to recruit people in Orkney
...city had osteoporosis there might be 100 different reasons why they had it, many of which would be genetic. But on a small island there would be many fewer genetic reasons, which would make each one easier to identify." Although the gene pool among Orkney families is isolated from the rest of the UK popula...A new tool against brain disease
...in our brain, but they are in our brain for better reasons than to enjoy a cigarette," McIntosh says. Different forms or subtypes of nicotinic receptors control the release of different neurotransmitters. "That's important because if you had compounds to facilitate the release of one neurotransmitter and not...Americans less likely to accept evolution than Europeans
... comparable across countries. There were several reasons for these inflated U.S. numbers. Miller said the most significant factor was the influence of fundamentalist religions. "The total effect of fundamentalist religious beliefs on attitude toward evolution was nearly twice as much in the United States...Unique Huntington's study moves forward
...ast four years of education after high school. For reasons that researchers don't understand, more than twice as many women as men, 689 compared to 312, have signed up for the study. ......olic economy is higher than in Caucasians, but the reasons for that are still unknown. We monitored Nepalese porters both during 90 km trekking in Khumbu Valley and at two different altitudes (3490 and 5050 m a.s.l.) where they were compared to Caucasian mountaineers during (22%) gradient walking. Both subje...Regular multivitamin use near time of conception significantly reduces preeclampsia risk
...y these findings." Researchers are unsure of the reasons why multivitamin use appears to have no benefit to preeclampsia risk in overweight women, Dr. Bodnar said. "It may be that typical multivitamins, which contain low nutrient doses, may not be adequate to overcome the metabolic challenges associated wi...Early fetal gender test demands rapid ethical policymaking
...eclared that choosing the sex of a baby for social reasons would be banned and the Department of Health has been conducting a review of the 1990 Human Fertilisation and Embryology Act the legislation governing human fertilisation. "Such debates need to consider the way that policy, guidelines and legal fr...Dietary modifications may not benefit cancer patients
...rtmouth Medical School in Lebanon, N.H., discusses reasons the two studies may have come to negative conclusions and suggests changes that could have been made to the study designs. He writes, "Together the two articles in this issue of the Journal well illustrate the contemporary status of chemopreventi...Centuries of land-use practices profoundly impact earth system, UNH scientists report
... the carbon-climate system, not just for technical reasons but also for policy reasons. One of the big policy debates is to what extent carbon sinks in ecosystems should be able to offset carbon emissions. "It is important to know if a carbon sink in an ecosystem today is simply the result of recovery from h...Yellowstone ecosystem may lose key migrant
...rger says there are both biological and historical reasons to preserving this particular population, which numbers around 200-300 animals. "The protection of this migration corridor is more than symbolic," He added, "An entire population from a national park could be eliminated, leaving a conspicuous gap in...Reversing 'hibernating' heart muscle focus of UB researchers
...y dysfunctional and do not return to normal. The reasons for this remain unclear, researchers say, but in most circumstances do not appear to be caused by replacement with scar tissue. The new grant will allow researchers to determine if the metabolic changes that myocytes undergo in order to remain via...HHMI helps physicians launch careers in research
...ian who wants a career in biomedical research. Two reasons why new faculty physicians abandon plans for research careers are lack of flexible funding to accommodate the needs of new labs and lack of time to actually do research. In fact, focus groups of young physicians--all of them alumni of training pro...USC study shows environment plays big role in women starting to smoke
Researchers have long known that reasons for smoking include social pressure and other environmental factors, as well as genetic factors based on results of previous twin studies. Now a more comprehensive study of twins by researchers at the University of Southern California (USC) has provi...Global atmospheric carbon level may depend primarily on southernmost ocean
...s. Though climate scientists have long debated the reasons behind the variation in atmospheric levels of carbon dioxide that occur over lengthy periods in Earth's history, the Princeton team may have found a clue to where the answer can be found. In a new research paper, the team reveals that the waters in t...Egg donation for stem cell research -- balancing the risks and benefits
...oups and regulators regard these concerns as extra reasons to oppose human embryonic stem cell research," says Mertes, "and clearly, asking women to donate eggs for research purposes can only be acceptable if the benefits outweigh the risks. These issues need to be addressed as soon as possible, since the ...The downside to diversification
...itions per day for the average adult. Dr. Ramsden reasons that "Evolution tamed a transposon for our adaptive immune response: our results indicate its domestication is less complete than hoped."...Drug that battles resistance to leukemia pill Gleevec 'extremely effective' against cancer
...of a drug target you can very quickly decipher the reasons for response and failure to therapy and quickly co...ome resistant to Gleevec, Sawyers said. One of the reasons Sprycel works so well to combat that resistance is that it binds to the mutant proteins in a differe......different in animal and humans. This is one of the reasons many drugs clear animal testing but end up toxic in patients. This type of sensor could help us predict human liver responses without patient exposure." "Because the Smart Petri Dish gives a continuous readout of cell damage," she adds, "this type o...