A test case for DNA barcodes to identify species
...ity of California, Berkeley, also point out in the correspondence section of this issue, the Hebert et al. study is "not yet a definitive test of the utility of DNA barcoding for either diagnosis of individuals or discovery of species." Future studies will have to determine whether these results can be generalized ...Bird's song may be linked to speech disorders
...xP2 in embryonic human brains and found a striking correspondence between bird and human expression," said White, a member of UCLA's Brain Research Institute. "The similar expression patterns suggest that songbirds can be studied to investigate neural mechanisms for vocal learning that may be parallel to those use...Scientists at Scripps discover a genetic cause for primary iron overload
...fessors Pietrangelo and Beutler discovered through correspondence that they had independently found the same mutation they decided to publish their results together in the same journal. Another paper by James C. Barton of the Southern Iron Disorders Center and the University of Alabama at Birmingham (3) and his col...New biography details adventures of 'Fritz Muller, A Naturalist in Brazil'
...atural world of southern Brazil, and his extensive correspondence with Charles Darwin make him a pivotal figure in the history of Darwinism and the development of the theory of evolution. "For these reasons," West wrote in the introduction, "a new biography of Fritz Mller seems desirable." He used for its narrati...Darwin Correspondence project receives Queen's Anniversary Prize
...10 of the Correspondence. Now, as director of the correspondence project, he has done work ranging from fund raisin... correspondence. In addition to his work with the correspondence project, Porter is co-editor, with Peter Graham, professor of English at Virginia Tech, of the book ...Three inferior prefrontal regions of the brain found receptive to somatosensory stimuli
... stimulation. The areas identified show reasonable correspondence to areas previously observed to possess somatosensory input in monkeys and thus appear to indicate a conservation of these pathways in humans. Future studies will hopefully clarify the specific task conditions that engage these areas....Darwin's letters being sent to Galapagos Islands as part of Darwin Correspondence Project
...ridge, where, as senior editor and director of the correspondence project, he has done work ranging from fund raising, researching and writing preliminary footnotes for the letters, and, along with Frederick Burkhardt, approving the finished volumes. "The Galapagos Islands," Porter said, "were essential to Darwin'...Biomarkers of aging news advisory
... stringently limit their caloric intake. The short correspondence appears in the August 2, 2002 issue of the journal Science. The NIA investigators compared more than 700 healthy men*, ages 19 to 95, who participated in the Baltimore Longitudinal Study of Aging (BLSA) with 60 rhesus monkeys, ages 5 to 25. The men w...Ancient supernova may have triggered eco-catastrophe
...cord would show whether there was a tight temporal correspondence between the supernova explosion and the extinction event. Isotope searches could also offer crucial information about the physical processes involved in supernova explosions. People study supernovae using telescopes and supercomputer simulations. In ...Alzheimer's genetic susceptibility could bring fear and misunderstanding, religious scholars say
...genes provide higher probability there is a closer correspondence between the presences of the susceptibility and the risk of the diseasefor those people whose have 1) family member already affected with AD and 2) who have both genes. This study does not tell us whether the probability would be as high for a person...Singing silently during sleep helps birds learn songs
...ral code. Now, much to our surprise, we find this correspondence in single cells of matched sensory and motor patterns. Forming this mapping of sound and action is the process of learning," said Margoliash. During undisturbed sleep, the researchers discovered, the neurons spontaneously fired the same complex so...NLM exhibit features Nobelist Joshua Lederberg
...uments, including notebooks, manuscripts, personal correspondence with other scientists, diary entries, newspaper clippings, video interviews, and photographs. New images are added regularly to this site. Other scientists represented in Profiles in Science are Oswald T. Avery, Julius Axelrod, and Martin Rodbell....Mechanical forces found to exert larger role in blood vessel health and disease
...oratory, recentlyshowed that there is a one-to-one correspondence between certain effects ofshear stress, the frictional force exerted by blood flow, and a growth factorthat stimulates the production of new blood vessels. The Penn State group compared the effects of shear stress with that of vascularendothelial gro...NYU researchers: Plants have signaling mechanism similar to one in human brain
...n the November 12th issue of Nature in ascientific correspondence entitled "Glutamate receptor genes in plants." For acopy of the article, contact Lauren Funkhouser at Nature at (202) 737-2355. Examining the DNA of Arabidopsis (a common lab plant), Coruzzi's lab found genesthat encode for glutamate receptors (iGlu...Promiscuous Plants May Spread Genes To Weeds
.... Her findingswill be reported in the September 3 correspondence pages of Nature. Artificially created plants, like wild plants, can breed with closelyrelated species to produce hybrids in what is called out-crossing. For example,corn, which is a grass, can cross with timothy grass, an abundant weed. If t...Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...s, the authors were able toestablish a statistical correspondence between diversity and climatechanges that were caused by cycles of the Earth's orbit relative to thesun. The astronomical or orbital theory of climate holds that changes inthe seasonal and geographical distribution of the sun's energy reaching theup...