Migratory birds: Innocent scapegoats for the dispersal of the H5N1 virus
... cold spell on the Black Sea showed that virus can spread through infected wild birds travelling short distances, but no evidence for long distance transmission during seasonal migration has yet been found. The evidence overwhelmingly supports the hypothesis that human movements of domestic poultry have bee...Immune response to cancer stem cells may dictate cancer's course
...ting evidence is showing that a tumor's growth and spread may depend on "cancer stem cells," which comprise only a very small subset of the tumor. Now, a new study by Rockefeller University scientists shows that immunity to cancer stem cells may help protect people with a precancerous condition from develop...Ladybugs may be cute, but watch out when they get near wine
...ybean aphid, an invasive species that has recently spread across the Midwestern areas of the United States. With this new prey, the abundance of one species of lady beetle, Harmonia axyridis or the multicolored Asian ladybird beetle, has also increased, says study co-author Matt ONeal, Ph.D., an entomolo...New evidence of 'human' culture among primates
...r Moura also speculates that because the Capuchins spread out widely in the dry forested areas of north-east Brazil when they forage, the noise could be an alarm-call. In addition, the use of stones provides biological anthropologists with a rare and highly-prized example of primates using stone technolog...Making mice with enhanced color vision
... enhancement, which may have allowed this trait to spread quickly. "If you gave mice a new sensory input at the front end, could their brains learn to make use of the extra data at the back end?" asks Jeremy Nathans M.D., Ph.D., professor of molecular biology and genetics, neuroscience, and ophthalmolog...Will the plague pathogen become resistant to antibiotics?
...livestock, antibiotic resistance could potentially spread to other Y. pestis and also other bacterial pathog...the possibility that wild animals might be able to spread MDR far beyond the livestock where it originated, Ravel notes. "When we identified the first Y. pe...UBC discovery may lead to 'smart' therapies for breast, ovarian cancer
...monstrated that the protein not only predicted the spread of breast cancer cells, it likely helped to cause ... can block the protein, we may be able to stop the spread of cells." Post-doctoral Fellow Julie Nielsen, of UBCs Biomedical Research Centre, and PhD studen...ACS News Service Weekly PressPac -- March. 14, 2007
...and other animals in lime may actually enhance the spread of those infectious proteins through soil, a new s...to foster quick decay of bodies and to prevent the spread of disease. The study is scheduled for the April 15 issue of ACS Environmental Science & Technology,...Study identifies risk factors for spread of respiratory infections in hospitals
...s lessons to teach hospitals on how to prevent the spread of other respiratory diseases, according to new re... most significant risk factors associated with the spread of SARS in 26 hospitals in Guangzhou and Hong Kong. These findings have implications for controll...Alien predators are more dangerous than native predators
...rinking during the 1900s following the release and spread of foxes and rabbits across the continent. Many other species up to two dozen -- are thought to have become extinct during this initial wave of invading alien species. By the 1970s, the bettong was considered as an endangered species with the on...New technologies coming too fast for Indian farmers
...ion as "de-skilling." "The bottom line is that the spread of Bt cotton doesn't so much reflect that it works...ound it to be a good technology," Stone says. "The spread more reflects the complete breakdown in the cotton cultivation system."...Disease opened door to invading species in California
...t the characteristics of the new grasses helped to spread the disease much more efficiently," Borer said. "It just beat them down, and they were not able to compete successfully." This virus had been in the native California grasses for a long time, the scientists said, but when the annual grasses were ad...Human pubic lice acquired from gorillas gives evolutionary clues
...our knowledge about what makes a good host for the spread of disease." Working with other scientists who collected lice from primates in Ugandan wildlife sanctuaries, the research team extracted DNA from the lice and used fossil data from humans and gorillas to estimate how long ago these two types of li...Paper challenges 1491 Amazonian population theories
...us occupationof more than 5,000 years that did not spread to the adjacent, 8 to 10kilometer distant lakes." The findings are published in a paper titled "Holocene fire andoccupation in Amazonia: records from two lake districts" that appears ina recent issue of Philosophical Transactions of the Royal Soci...Largest physics meeting of the year, in Denver
...ew model shows that if too many of the individuals spread false information, the result is a global breakdown of the network, with true information sent on ever longer paths and essentially lost (P22.2; multimedia at http://cmol.nbi.dk/research.php?topic=27 ) NANOMECHANICS OF BONE Bone contains importa...MIT engineer works toward clean water, more
...g and Sloan School of Management students, hope to spread ceramic filters to reach more than a million people in northern Ghana in the coming years. Murcott is also leading MIT teams to Nicaragua, Haiti, Peru and Kenya to address water and sanitation issues in those countries. She concludes, "We hope to...2-step process filters evolution of genes of human and chimpanzee
...nation process, and confers some benefit, can then spread quickly through positive selection. The more radi...survive early negative selection are the ones that spread most quickly once they gain a foothold," said the studys senior author Chung-I Wu, Ph.D., professor ...NIST 'micro-rack' measures cell mechanical properties
...s placed on the center of the platform, allowed to spread and adhere for several hours, and then pulled slowly apart until it detaches. In NIST experiments, the cells let go of the substrate at a force of about 1500 nanonewtons. (One nanonewton is the approximate amount of force required to break a single c...Green tea and COX-2 inhibitors combine to slow growth of prostate cancer
...ith low doses of a COX-2 inhibitor, could slow the spread of human prostate cancer. In the March 1 issue of Clinical Cancer Research, researchers from University of Wisconsin-Madison demonstrate that low doses of the COX-2 inhibitor celecoxib, administered with a green tea polyphenol called pigallocatec...