Physical activity in the elderly ruled in part by genetics
...e's inherent physical activity level. However, to date there has been no study to suggest potential genetic factors related to one's physical activity level as one ages. Therefore, a new study has been undertaken to investigate the likelihood that physical activity level regulation with aging is control...OHSU scientists define adult stem cell healing abilities
...eas or heart muscle. Although the OHSU research to date has demonstrated cell fusion only in liver, it is likely that cell fusion is responsible for many of these other cases of stem cell flexibility. The liver is able to heal using these cells. However, it's possible that abnormal fused cells would not f...Scientists debate meaning of 40-million-year-old primate fossils in Nature
...ht. Analyses of DNA sequences confirm this early date and indicate that, contrary to a widespread assump...r bushbabies and lorises. The well-preserved teeth date from about 40 million years ago, twice as old as the already known fossils for these two groups of p...Rockefeller scientists identify 'natural' proteins that push stem cells to produce hair, not skin
The clearest picture to date of how two proteins determine the destiny of a stem cell that is genetically programmed to develop into either hair or skin epidermis is emerging with mouse embryos as models for human biology from the Howard Hughes Medical Institute at Rockefeller U...Dinosaur, crab fossils reveal ecosystem secrets
...s are about 94 million years old, which means they date back to the Cretaceous Period, which lasted from 130-65 million years. "The two normally don't hang with each other, or they are at least not commonly discovered together," said Smith, of crabs and dinosaurs. Smith made international news in 2001 w...Perlegen scientists find genetic basis for difference between humans and non-human primates
...mans, chimpanzees and other non-human primates. To date it has been commonly thought that single base pair changes in these genomes, not larger DNA rearrangements, would underlie the majority of these postulated genomic regulatory differences. Comparative genome analysis of human and non-human primates i...Squirrels' evolutionary 'family tree' reveals major influence of climate, geology
...neages of modern African ground and tree squirrels date to shortly after that. "So squirrels seem to have arrived in Africa and begun their diversification shortly after land animals first had access," Roth said. At about 11 million years ago, their research points to what Roth called "an explosive divers...Genetics may help solve mysteries of human evolution
...at the gene evolved closer to 50,000 years ago - a date that would support a biological cause for the chan...reasingly efficient ways to isolate and accurately date genes. Technological advances have allowed them to analyze vast amounts of genetic data in ever-shor...New life discovered in deep ocean floor
...owever. Colwell will present the team's results to date on Feb. 14, 2003, at the American Association for the Advancement of Science annual meeting in Denver. His presentation is part of the Environmental and Biological Diversity Symposium on Microbes Beneath the Earth's Surface. The journey to study meth...Risk of future Exxon Valdez declines 92% since risk assessment, safety measures, says O.R. study
...ional Safety Management program. Key Benefits To date the various organizations comprising the risk-management teams have taken the following actions based on the results: Oil companies introduced enhanced capability tug service to escort oil-laden tankers through Prince William Sound's Hinchinbrook En...Folic acid supplements not linked to multiple births
...multiple birth, whether taken before the estimated date of ovulation, around the estimated time of fertilisation, or after conception."...Male groundhogs hibernate less to visit the ladies
...Berks-Lehigh Valley College. Zervanos defines the date of immergence as the last day they monitored the g...dhog above ground in the autumn and he defines the date of emergence as the first date they monitored the groundhog above ground in the spring. Groundhogs ...American Physical Society March Meeting 2003
Note: Each story is embargoed until the date and time of presentation. College Park, MD, January 23, 2003: The biggest physics meeting of the year, the American Physical Society (APS) March Meeting, will be held March 3-7, 2003 in Austin, Texas. An estimated record 5600 talks will be delivere...From slime to saviors: Sorting out the fungal family tree
...eful products. Fungal-produced drugs discovered to date include penicillin; griseofulvin, used on athlete's foot; and the cephalosporins, which are similar to penicillin. "Some fungi are crucial for life, but others cause many medical, plant and animal diseases, and it's important to learn which ones are ...Applied Biosystems announces SNPlex ultra high throughput genotyping system
...All information in this press release is as of the date of the release, and Applera does not undertake any duty to update this information, including any forward-looking statements, unless required by law. Copyright 2003. Applera Corporation. All rights reserved. Applied Biosystems is a registered tradema...Effects of global warming already being felt on plants and animals worldwide
...st 40 years, concluded that the average egg-laying date for female swallows has advanced by nine days - a phenomenon that mirrors other North American studies confirming higher temperatures and the earlier arrival of spring. Similar long-term observations of flowering plants in Wisconsin revealed that wil...Cocaine harms brain's 'pleasure center,' addict study finds
...l of Psychiatry. "This is the clearest evidence to date that the specific neurons cocaine interacts with don't like it and are disturbed by the drug's effects," says Karley Little, M.D., associate professor of psychiatry at the U-M Medical School and chief of the VAHS Affective Neuropharmacology Laborator...People from distant lands have strikingly similar genetic traits, study reveals
... Dec. 20.Science study the largest of its kind to date have implications for understanding ancient human migrations and for resolving the ongoing debate about the use of ancestry information in medical research, said Marcus W. Feldman, the Burnet C. and Mildred Finley Wohlford Professor in Stanford's Sc...Researchers reveal new secrets of the brain
...research team present the most convincing proof to date that the adult brain can rewire itself in response to outside world. While many neuroscientists had begun to speculate that adult brains might be more dynamic than once thought, neuroscience orthodoxy still held that adult brains are relatively stabl......estern portion of the Dominican Republic. She can date these corals to an accuracy of up to plus or minus 44 years using an uranium/thorium method. The fossil corals she is looking at are the same species, Montastraea annularis, as the modern samples she studies and these fossil corals also show a laye...