For the sake of land and climate, coaxing soil to soak up carbon
... oxygen availability, microbial population and the physical properties of different soils. Amonette's experiments were designed to weigh the importance of these many factors and to learn ways they might be manipulated to increase humification. In the lab, Amonette assembled 72 elaborate plastic-tube configu...East African artifacts support evolution of symbolic thinking in Middle Stone Age
...ficantly after Homo sapiens evolved to its present physical form (circa 120,000 years before present) and first in Eurasia, where human art and sophisticated artifacts begin appearing about 35,000 years ago. Recent evidence, including important discoveries of sophisticated bone tools from Blombos Cave in Sout...Scientists compare rat genome with human, mouse
...ic differences that contribute to the evolution of physical traits may benefit from analyses such as these, which will become more powerful as the repertoire of mammalian genome sequences expands," said Richard Gibbs, Ph.D., director of the Baylor College of Medicine's Genome Sequencing Center and principal i...Scientists seek cause for what makes good cell go bad
...s, which fosters scientific collaborations between physical and biological scientists at the University....Laboratory rat gene sequencing completed
...rom that of chimpanzees, and may contribute to the physical and behavioral difference between the two species. Rodent mutation is due to various different factors, an obvious one being generation time they reproduce faster than humans. The results of the analysis show that the rat has mutated slightly more...Scientists develop new cloning technique that dramatically shortens the search for genes
...he goal is to raise a mutant plant with an obvious physical mutation, then search through the plant's DNA until the mutated gene of interest is identified. For example, if researchers wanted to find the genes responsible for normal root growth, they would look for a mutant plant with defective roots and then ...Bioreactor boosts chemical fermentation by 50 percent: study
...t I know of that is working to optimize the cells' physical environment." The bioreactor can grow cells for a variety of applications including fermentation, animal cell culture, tissue engineering, and waste water treatment. Since 1998, Yang and his colleagues have used the device to make large qua...Scripps Research scientists find deafness gene's function
...hanotransduction, a phenomenon in hearing in which physical cues (sound waves) are transduced into electrochem...ed to have a central function in the conversion of physical cues into electrochemical signals. "In humans, there are mutations in [the gene] c...Southern Californians commonly misinformed about beach water quality, study finds
...es of coastal pollution, as well as estimating the physical sizes of these areas and the rates they are generating pollution. The approach involves collecting shoreline water quality data and then running them through a mathematical model. When applied to Huntington Beach, the approach points to tidal outlets...University of Toronto scientists light a path for new nerve cells
...eating a "channel" through the gel. Although not a physical channel, the interaction created a "growth-friendly" chemical pathway through the agarose. Luo then placed neural cells at the opening of the channels. She and Shoichet found that the cells migrate into and through the channels, filling the pathways ...Rockefeller University scientists take on controversial 'vibration theory' of smell
...m other sensory stimuli that are defined by simple physical properties. Color, for example, is defined by the wavelength of light. While experiments conducted in this study were not designed to confirm the "shape theory," the results support the theory favored by most scientists, that shape of the odor molecu......n compared to humans, they demonstrate accelerated physical and cerebral development, remain fertile into old ...Chair in the Neurobiology of Aging. "The level of physical activity among these human ancestors was much higher than most of us have ever known," he said. "Whe...Scientists discover why not enough choline results in fewer brain cells, poorer memory
...brain function by positively affecting the brain's physical development. Differences in development influenced action, the scientists and their colleagues found. In animal experiments conducted at Duke University, both young and old rats performed significantly better on memory tasks if they received enough c...Diet a major factor in breast cancer time for government action
...y avoiding hormone replacement therapy, increasing physical activity, not being overweight, and eating a more healthy diet", said Dr. Berrino. "The problem with the diet of most people in the West is that it tends to include processed foods high in sugars and fats, too much red meat and dairy products, and ...Study suggests possible way to repair damaged nerve cells
...dy. Damaged neurons are rendered useless by the physical interaction of two cellular proteins proNGF and p75, the researchers report. They learned that treating these injured cells with a proNGF antibody kept the proteins from interacting. In turn the neurons were saved from almost certain loss. "Knowi...Deficits associated with prenatal alcohol exposure can be seen as early as infancy
...the mothers; their infants were given an extensive physical examination; and medical records of the pregnancy and delivery were also collected. Based on the reported drinking habits of the mothers, infants were divided into two groups: high risk (n=18) and low risk (n=100). While sitting in a car seat, each...Gene variants may increase susceptibility to type 2 diabetes
...vironmental influences such as obesity and lack of physical exercise." Translating the discovery into a treatment that benefits people with diabetes or those at risk is still years away. "We need to learn much more about this gene and how to modulate its function," Dr. Collins cautioned. The Finland-United...Newly cloned gene key to global adaptation of wheat
...ovsky and colleagues reported detailed genetic and physical maps for the VRN1 region in wheat, rice and sorghu...C Davis researchers also used detailed genetic and physical maps to discover the VRN2 gene. They determined that VRN2 is a new type of gene involved in the regu...Breaking the rules on artifical blood
... one of a small number of scientists who think the physical characteristics of blood substitutes are to blame. He argues that they thin the blood, reducing shear stress in the capillaries and leading to vasoconstriction. Creating artificial blood with a low affinity for oxygen is also a mistake, says Robert ...As obesity skyrockets, Joslin Diabetes Center urges action to stem the tide of type 2 diabetes
... two simple changes portion control and increased physical activity. No matter what diet regimen you advocate, a calorie is a calorie," Dr. Kahn says. "The overall caloric intake in the U.S. is simply too high. Americans are eating too much. If you regularly eat more calories than you burn, you will become o...