In the News
Vietnam War Technology Could Aid Elephant Conservation
Seismic sensors developed to track enemy troop movements during the Vietnam war could help ecologists monitor and conserve elephant populations, according to new research published in the British Ecological Society's Journal of Applied Ecology. Dr Jason Wood and colleagues from Stanford University recorded vibrations caused by animal footfalls using a geophone buried near a path. Researchers were able to estimate the number of elephants passing the sensor by the size and frequency of their footfalls. Earth Systems Research Laboratory, Global Monitoring Division: South P
Website for the South Pole Observatory (SPO), which was "established at the geographical south pole at 2837 m above sea level in 1957 as part of the International Geophysical Year."Features live views of the South Pole, current weather, background about South Pole scientific facilities, material about the ozone hole, photos and time-lapse movies, and links to related websites. From the Earth System Research Laboratory, Global Monitoring Division, National Oceanic and Atmospheric Administration (NOAA). Study Finds Enzyme Activity Promotes Rare Form Of Leukemia, Offers Pot
Scientists at the University of North Carolina at Chapel Hill have identified an enzyme that helps trigger the development of leukemia, a cancer of blood cells. Divergent Mating Systems And Parental Conflict As A Barrier To Hybridi
A new study in the September issue of The American Naturalist argues that with increased self-fertilization, parental conflict decreases. Consequently, parents from frequently selfing groups should be competitively inferior with respect to this parental conflict. Audubon's Birds of America
"Online version of John James Audubon's Birds of America ... from an 1840 'First Octavo Edition' of Audubon's complete seven volume text."Includes Audubon's images and original text descriptions. "Bird species can be found listed alphabetically, or categorized by family. Audubon's drawings of some species' anatomical features are also included in the 'figures' section."The online edition includes a list of species that have become extinct since Audubon's time and a list of state birds. Screening For Osteoporosis Prevents Hip Fractures In Older Adults
Researchers at Johns Hopkins have determined that screening for osteoporosis in men and women age 65 and older can prevent a large number of hip fractures, a debilitating, traumatic experience for 340,000 older adults annually. Promising New Class Of Inhibitors Against West Nile Virus Identified
Researchers have identified a new class of compounds that may inhibit West Nile virus in humans. West Nile virus, a member of the flavivirus family which also includes dengue virus and yellow fever virus, can cause disease in humans, horses, and other vertebrate species when transmitted by infected mosquitoes. Genes Play An Unexpected Role In Their Own Activation, Study Shows
Scientists have discovered how a single molecular "on switch"triggers gene activity that might cause effects ranging from learning and memory capabilities to glucose production in the liver. They showed that each gene that responds to CREB chooses which co-factors, or helper molecules, CREB uses to activate that gene. Timing Is Everything When Treating Viral Infections
A new study has indicated that the timing of treatment with an immune-modifying drug, relative to when a mouse becomes infected with a virus, is crucial in determining whether the treatment is effective or not. If mice were treated with an antibody before being infected, or within 48 hours of being infected, with a particular virus, the immune response failed to clear the virus. By contrast, if treatment was delayed until more than 72 hours after infection the immune response was enhanced and rapidly cleared the virus. CRS Report for Congress: Pages of the United States Congress: Selectio
This Congressional Research Service (CRS) fact sheet, updated in August 2006, describes the selection and duties of the "approximately 100"high school juniors who "serve principally as messengers"in the U.S. Congress each year. "Pages must be appointed and sponsored by a Member of Congress for one or two semesters of a school year, or a summer session."Opens directly into a PDF document.
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