Did Fur Trappers Trigger Landscape Changes?
...tofind signs of howhumans changed the ecology of a region once dominated by dense forests andmeanderingwater...carbon-14dating. The oldest core collected in this region so far is 15,000 years old. Itcame from IndianCreek, a tributary of the Anacostia River near Washing...North America Absorbing Carbon Dioxide At Surprisingly High Rate, Team Reports
... claiming thatpre-existing carbon sinks in a given region act to offset that region'scombustion-produced carbon dioxide. The findings are the result of a collaboration among geoscientists andbiologists from several institutions: Song-Miao Fan and Emanuel Gloor,Princeton research scientists; Jerry M...New Contaminant Invades Arctic Air
...orinated naphthalenes ' in the air over the arctic region of theglobe. PCNs, predecessors to the infamous PCBs (polychlorinated biphenyls),previously have been found in humans, birds, fish, water, air and sediment innon-polar regions in North America and Europe. They also have been found infish from the A......, tangled tau protein in the cells' cytoplasm, the region outside thenucleus. (Normally, tau protein helps stabilize microtubules, which are vitalfor transportation of molecules within cells and maintaining the shape ofcells.) Wilhelmsen and other members of the presenting team previously determined thatt...Common Type Of Aircraft Wing Susceptible To Hazardous Icing
...le -- strike farther back onthe wing surface, in a region currentlyunprotected by the boots. A ridge of ice can quickly form, which increases dragand decreases lift, with potentially deadlyconsequences. "On this particular airfoil, we saw an 80 percent loss in the maximum liftingability of the wing due to a...... Neuroscientists have long established that a region in the lefthemisphere plays a role in language function. In the past decade it also hasbecome evident that left hemis- phere specialization for language extends todeaf people who use sign languages, as well as for those who speak. However,scientists ...Sex-Specific Behavior Controlled By Peripheral Nervous System
... "The results are surprising, showing that a brain region normally wiredto process touch, vibration and pres...onsthat sensed visual stimuli connected to a brain region that normally processedauditory information. But researchers were only able to produce a limited num...Counting X Chromosomes To Determine Sex
...f the SEX-1 protein grabs on to DNA, while another region in the proteinmay bind to an as yet unidentified small molecule. The small molecule might needto be present to activate SEX-1 so that it can bind DNA and turn an individualinto a hermaphrodite. Meyer points out that if SEX-1 needs to bind to a smal......anding theecological roles of such invaders in one region may help predict invasive rolesin other areas. According to the researchers, the ecological roles of invasive, non-indigenousspecies in forest ecosystems are poorly understood. Some analyses have proposedthat such invaders become established prima...Ancient Antarctic Environment Rocked By Volcanic Eruptions
...vity than waspreviously suspected for the Ross Sea region of Antarctica, but it is alsouseful because it provides material for accurately dating the strata. The layers of volcanic debris are encased within muddy sands, indicatinga relatively quiet seafloor with occasional weak currents before and af...Montana State University Scientist Contributes To Latest Dinosaur Discovery
... had found a rare dinosaur embryo in the Patagonia region ofArgentina. Frankie Jackson, a research associate in the Museum of the Rockies andearth sciences department at Montana State University-Bozeman, is one of sixscientists who described the discovery in the Nov. 19 issue of the journalNature. ...Christmas Travellers Are Warned Of Malaria Risks
... on which malaria drugs are most effective for the region they are visiting, and to ensure that they comply with this advice. In their paper, Dr Andrew Reid and colleagues from the Hospital for Tropical Diseases in London report that there was an increase in the number of cases of severe malaria in the UK...Fall Meeting: Updated Press Conference Schedule
...e shortest distance between Asia and the U.S. This region is also home to many volcanoes of the "Ring of Fire" that erupt ash clouds hazardous to aviation. USGS Deputy Director Thomas Casadevall, a well-known expert in the field of volcanic ash and aviation safety, will discuss efforts by scientists world...Oldest Ice Core From The Tropics Recovered, New Ice Age Evidence
... The new cores also showed that the in the region waseight times less dusty during the height of that last ice agethan it is now. A decrease in dust indicates that the regionalclimate was the much wetter at the time, he said. ...NCAR Team Tags 'Imported' Pollutants Over The Pacific Northwest
...culate the percent of sulfates transportedfrom one region to another. The source regions considered are NorthAmerica, Asia, and Europe, with the rest of the world grouped as thefourth region. NCAR is managed by the University Corporation for Atmospheric Research,a consortium of more than 60 universities off...Tracking A Legacy Of Waste In The West Siberian Basin
...dby Russia. West Siberia is the largest basin and region of low relief on earth. Next, it is proposedthat the scientists will model the Tomsk site and, possibly, Krasnoyarsk. "We need to know thechemistry of how radioactive plumes move below the surface," Foley said. "That knowledge could beapplied to ...Amid Albanian Turmoil, Archaeologists Unearth Secrets Of The Stone Age
...vis and the team began field work in the Apollonia region of Albania in May and June 1998 and will continue ...s to survey in the Mallakastra (Fier-Patos-Ballsh) region about a four-hour drive south of Tirana before commercialism and looting interfere with the region's......anagement Project area advisor for the South Coast region and UC Davis Weed Science Specialist Clyde Elmore. (Methyl bromide has also been widely used as a fumigant to rid nursery potting mix of weeds.) "The mulches all worked great," Wilen said. However, currently there isn't a good way to apply m......y. The rails favored historic stopover site in the region has been the wild rice marshes bordering the tidal Patuxent River. The principal investigative technique researchers are using to study the sora rail stopover ecology and migration characteristics are large-scale bandings and radio telemetry. The tra......r words, these proteins are coiled, and each has a region with ahigh propensity to wrap around its target protein like a snake wrapping around alimb. Uncovering these structures is an important step forward for Lipscomb inunderstanding just how these transport proteins work. Before her work,researc...