Research finds that circadian rhythms dominate all life functions
...putational Biology on June 15, refutes the current theory that only 10 percent to 15 percent of all genes were affected by nature's clock. While scientists have long known that circadian rhythms regulate the behavior of the living, the study shows that daily rhythm dominates all life functions and particula...Book makes case for using evolution in everyday life
...ts to bridge the ultimate gap between evolutionary theory and religion. Unlike the futile controversy over creationism and intelligent design, my dialogue with religious scholars and believers is cordial and productive, Wilson reports....Research without borders: Head of Santa Fe Institute to address NSF
... or societies; network dynamics from quantum field theory to social organizations; the physical-chemical ori...rlying networks, leading to a general quantitative theory that captures essential features of many diverse biological systems. Examples will include animal ...Caribbean frogs started with a single, ancient voyage on a raft from South America
...ormed DNA sequencing and analysis. One prominent theory had proposed that frog species on the large island... about 70-to-80-million years ago. A second major theory proposed that they arrived, instead, by rafting across the Caribbean Sea after the giant asteroid im...Bigger horns equal better genes
... are evidence to support the mutation accumulation theory of ageing, which is the idea that, because natural selection weakens with age, genetic mutations have effects that accumulate over time. Therefore, differences in genetic quality become more apparent as an organism ages. Coltman noted that his stu...Human ancestors learned to walk upright in the trees, say experts
... trees for a life on the ground. The traditional theory of human origins states that we evolved to walk upright from ancestors who walked on all fours when on the forest floor. This new study suggests the opposite. Upright walking evolved in the ancestors of all apes, including humans, as a means of for...JCI table of contents -- June 1, 2007
...rnal vaccination against influenza, supporting the theory that the human neonatal immune system is not deficient or incompetent but, rather, capable of responding to environmental exposures. These conclusions have important implications for determining when immune responses to environmental exposures begin....Math that powers spam filters used to understand how brain learns to move our muscles
... part by a special kind of statistical probability theory called Bayesian math. Unlike conventional statistical analysis, a Bayesian probability is a subjective opinion, that measures a learners individual degree of belief in a particular outcome when that outcome is uncertain. The idea as applied to the...Pregnant mom's exposure to flu vaccine kick-starts fetal immune system
...rnal vaccination against influenza, supporting the theory that the human neonatal immune system is not deficient or incompetent but, rather, capable of responding to environmental exposures. These conclusions have important implications for determining when immune responses to environmental exposures begin....Systems characterization of cell surface receptors
...tors. The authors use a new module-based systems theory approach along with quantitative metrics for network function and robustness to show that endocytosis and other receptor/ligand properties can be described by just a few control parameters. Using mathematical analysis, the authors show that the effic...Computer science professor awarded $400,000 from National Science Foundation
...ndation (NSF) to study geometric shape handling in theory in practice. The CAREER award is NSFs most prestigious honor for junior faculty members and is designed to support exceptionally promising college and university faculty members who are committed to the integration of research and education. Wenk...Research finds evidence tropical cyclones have climate-control role
...merica and Europe. These findings support a 2001 theory by Kerry Emanuel, a professor of atmospheric science at Massachusetts Institute of Technology, and suggest that there is an additional factor to be included in climate models that may change predictions of future climate scenarios. "It was thought ...Lessons from the orangutans: Upright walking may have begun in the trees
... had already descended to the savannah, as current theory suggests. These findings appear in the 1 June 2007 issue of the journal Science , published by AAAS, the nonprofit science society. Upright walking, or bipedalism, has long been considered a defining feature of humans and our closest ancestors. ...Yin and yang -- Balance could play key role in progression of Alzheimer's disease
...on the role of AB40 and hope that we can test this theory on human neurons, animal models, and someday in clinical trials. One critical advantage of using AB40 for the prevention or therapy for Alzheimers is that AB40 is already known to be largely free of side effects at near physiological concentration."...Nature surrenders flowery secrets to international team
...orget-Me-Not and Snapdragon. "This is a unifying theory that provides an explanation for the diversity of inflorescences we see in nature," says Dr. Przemyslaw Prusinkiewicz, the papers lead author and a University of Calgary computer scientist. "It was thought that separate mechanisms explained the many ...New genetic data overturn long-held theory of limb development
...s finding overturns a long-held, but much-debated, theory that limb acquisition was a novel evolutionary eve...f the paddlefish fin has longer elements. Accepted theory among scientists has been that the pattern of Hox gene expression seen in zebrafish represents the p...Stem cells may look malignant, not act it
...journal, actually contest the increasingly popular theory that bone marrow stem cells seed cancer. Instead, these cells might simply look like cancer, not act like it. "They have the same kind of surface proteins," said study author Chris Cogle, M.D., an assistant professor of medicine at the UF's College...UVa researcher studying disease that cripples newborns
...aken this research to the next level. To prove the theory that DM is caused by toxic RNA (ribonucleic acid), his team created a new kind of mouse model. It attached many added CTG repeats to the DNA of a gene that made the muscles in mice glow green under a microscope. This enabled easy observation of what ...Novel sugar-to-hydrogen technology promises transportation fuel independence
...the processes together in one pot. They tested the theory using Oak Ridge's hydrogen detectors and documented that hydrogen is produced as they predicted. Mielenz, who heads the Bioconversion Group in ORNL's Biosciences Division, attributed the successful research to a unique collaborative working relatio...Cannibalism of the young allows individual fish to specialize
...s combines literature data and advanced ecological theory in order to look for species-specific life history patterns explaining the presence/absence of resource polymorphism in fish. Interestingly and not at all obvious, the study suggests that early cannibalism, which is found in all species displaying re...