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Tag: "decisions" at biology news

Gene variations explain drug dose required to control seizures

...t rely on a one-size-fits-all approach when making decisions about which drug to use and in what dose," Goldstein said. "This study makes clear that such an approach is not sufficient. People with epilepsy are genetically different from one another, and some of those differences affect their responses to drugs...

Scientists collaborate to assess health of global environment

...noted. By evaluating the trade-offs that accompany decisions about ecosystem services, it will identify priorities on local, regional and global scales. In a particular area, for example, it can help policymakers decide whether the benefits of increasing food production will outweigh the effects on water quali...

Genrate: a generative model that finds and scores new genes and exons in genomic microarray data

... methods rely on separately making threshold-based decisions on intensity of expression, similarity of expression profiles, and arrangements of exons in the genome. We have taken a Bayesian approach and developed GenRate, a generative model that accounts for both genome-wide expression data taken from multipl...

Genetically modified rice in China benefits farmers' health, study finds

...r advice from technicians, making all of their own decisions on whether or not to apply pesticides on both gene...nd non-genetically modified rice. They based their decisions on whether to apply pesticides on observations of the severity of pest infestations, rather than on ...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

...mation that agricultural workers can use in making decisions about their health and the health of their families. ...

Flocking together: Study shows how animal groups find their way

...s not necessary: Large groups easily make accurate decisions about where to go even when no individuals are regarded as leaders and very few individuals have any pertinent information. In addition to shedding light on the graceful coordination of animal groups, the results may be useful in understanding how ...

New insight into regulation of blood stem cells

...entiation. The ability to influence stem cell fate decisions would be expected to have a major impact on the field of stem cell therapy and to provide important in vitro model systems for the identification of genes and compounds that can be used to regulate the process of stem cell differentiation." ...

New book explains antibiotic resistance for a broad audience

...aders will need to form opinions and make informed decisions regarding the use of antibiotics. The authors have carefully sifted through a vast amount of information to ensure comprehensive coverage of topics including the larger issues of economics, politics, health, safety, and the environment. Specific anti...

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

...tee allocated drugs to the most seriously ill, its decisions were viewed as cold-hearted and distant in letters...ding how limited therapies are rationed, and these decisions cannot be made for them by self-appointed experts. We do not want this opportunity to become another...

UN: World in big ecological mess

...ed and further highlights how important it is that decisions related to economic development also protect the environment, in order to ultimately safeguard human health," said Kerstin Leitner, Assistant Director-General for Sustainable Development and Healthy Environments of the Geneva-based World Health Organ...

Scientists discover global pattern of big fish diversity in open oceans

...and single location mindset, addressing management decisions in a larger context that recognizes our cumulative and rapid impact on the ocean system. The good news, say these scientists, is that there is hope for the future. The key pieces of the global biodiversity puzzle are still out there, including the p...

Bees, Brains and Addiction

... can be then applied to studies of how humans make decisions about rewards. And predictions from computer modeling of the bee brain can be tested via human brain imagining studies. For example, Sejnowski said that by using functional magnetic resonance imaging, which measures blood flow to reveal which regions...

Decisions, decisions: Male or female?

...mplicates that pathway as a key regulator of early decisions made by germ cells as to whether to eventually develop into eggs or sperm," Wawersik said. Though the team's observations were limited to the pathway's role in fruit fly germ cell communication, Van Doren said the same conduit also is active in huma...

Assessing the Amazon River's sensitivity to deforestation

...y. "It is that improved understanding of how human decisions about land use directly impact the River and its e...osystems, which can help people make more informed decisions for the future of Amazonia," he adds. ...

Bumblebees copy one another when contending with unfamiliar flowers

...rewarding flowers. The role of other bees in these decisions has been considered only in the context of deterrence because the small scent marks that foragers leave after emptying flowers dissuade others from visiting. In the new study, the researchers offered bumblebees the choice between several artificial-...

Identification of specific genes predicts which patients will respond to Hepatitis C treatment

...ormation as we can, so that they can make the best decisions about their treatment options." Tony Angelini, 42, was one of the patients in the study who responded to treatment. He is now clear of the virus. "Knowing that you are a responder gives you the courage and the fight to go on. It was devastating, but...

Looks matter to female barn swallows

...coloration, and to demonstrate that mate-selection decisions are continual and dynamic. The results of the study have implications for the evolution and upkeep of showy ornamental traits -- such as a peacock's tail or a deer's antlers -- that are costly for males to maintain but give them an edge over rival ma...

Gambling monkeys give insight into neural machinery of risk

...asks can identify brain regions involved in making decisions based on risk, he said. "And then, using these animals, we can do electrophysiological studies that allow us to understand how the fundamental processing units of the brain -- single nerve cells -- actually process information about reward and risk ...

Investigating 'brain shrinkage' in alcoholics

...become impaired and can further contribute to poor decisions and excessive drinking. With prolonged bouts of drinking, dependence may ensue along with neural systems damage, commonly affecting frontal lobe based systems and their functions, which include decision making, inhibition, problem solving, and judgme...

Slipping past the blood brain barrier: Research shows potential treatment for brain cancer

...to the brain and what it keeps out. It makes these decisions based on the physicochemical properties," says Dr. Banks, who also is a staff physician at Veterans Affairs Medical Center in St. Louis. "Most of our drugs that fight cancers are toxic to cancer cells and to other cells, too. That's why the blood br...

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