Ancient math refines theories of evolution
...to digging into the past--but rarely in a quest to unearth equations. One group of scientists, however, has dusted off a 200-year-old formula to help reconcile discrepancies that crop up among DNA studies designed to sort out how species are related to one another. In the June 30 issue of Science, John Huels...Scientists discover ancient protein and DNA sequences in the same fossil
...and modern species." This approach could possibly unearth new knowledge about evolutionary relationships. "This research is groundbreaking," continues Nielsen-Marsh, "because it finally puts to rest the question of whether indigenous proteins can exist in fossil bones beyond radiocarbon dating age. Moreover...Peoples' household dynamics crucial to biodiversity
...sically has been ignored. It was even difficult to unearth the data. Everyone looks at population size and growth rate, but the number of households and household size are crucial factors affecting the environment." Among the findings: In hotspot countries, the annual rate of growth in the number of hous...University of Pittsburgh scientists awarded for outstanding cancer research contribution
...he basis for KSHV's ability to cause cancer and to unearth new pathogens and undiscovered viruses." Samuel A. Wells, Jr., M.D., president of the GMCRF, called Drs. Chang and Moore exemplary scientists and worthy recipients of the Mott Prize. "They were chosen through a rigorous process conducted by a panel o...One-third of women feel distant from partner post-miscarriage
...s couples, it may stimulate growth or, conversely, unearth inability to support each other through troubling times," says Kristen M. Swanson, R.N., Ph.D., F.A.A.N., professor of family and child nursing at the University of Washington. Swanson and colleagues interviewed 185 women four times over the course o...Ultra-low oxygen could have triggered die-offs, spurred bird breathing system
...c-Jurassic extinctions, but geologists have yet to unearth any indisputable evidence of such an impact, and there is no conclusive evidence of what caused either of the events. Ward said mass spectrometer readings on fossil material, as well as the extinction pattern for fossils in rock outcrops collected f...