Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
...analyzed more contemporary ostracod fossil samples collected at another North Atlantic site. Those were alive during the past 200,000 years, representing the last two glacial-to-interglacial cycles. The study found evidence that deep ocean water cooling has intensified in the past 3.2 million years, which the ...Race Plus Roaches: A Breathtaking Link
...fed furniture of homes. The allergen samples were collected using a handheld vacuum cleaner equipped with individual collection bags. Detectable levels of cockroach allergen were found in 26 percent of urban and suburban bedrooms, where children spend the most number of consecutive hours. Over 80 percent of t...Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...about whom Snook read avidlywhile at Grinnell, she collected multiple clues to unravel the mystery. Hurricanes periodically blow through Yucatán forests, she said. "Theyknock down some trees and branches, but most of the trees survive."However, the fallen debris provides ample fuel "that ignites in the......an and McGann then looked at many sediment samples collected in earlier years from the bay, to see if they coul...not find it in any sediment samples which had been collected between 1964 and 1981, they did find it in samples collected from the bottom of the bay in 1987. Evi...Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms
...The AGOs will furnish data that could otherwise be collected only by an entire flotilla of spacecraft. Retrieving the Flare Genesis Telescope One of the world's largest solar telescopes circled Antarctica last year suspended from a giant balloon, and taking advantage of the 24-hour-long light, imaged......al and reproductive history and blood samples were collected for DNA analysis. Researchers were able to obtain genetic data from the blood samples of 398 postmenopausal women (185 cases and 213 controls), and 233 premenopausal women (119 cases and 213 controls). All participants were Caucasian. A f...Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago
...d and well-documented fossil record which Ward has collected -- some 40 species of sea creatures from the Cretaceous period that include clams and squid-like creatures with shells called ammonites. "For the first time, we can estimate the relative importance of all the major factors that led to the ext...Bog Beetle, Misidentified For 85 Years, Is 'Discovered' At Cornell
...ine to Ohio and Ontario to Maryland. The earliest collected specimen found so far belongs to the American Museum of Natural History in New York City, which was found at Palisades on Hudson, N.Y., on April 2, 1907. The collector was not noted on the specimen label. There are also specimens from the Museum of...Laser Microscope At Cornell Images Serotonin In Live Cells
...uently, fluorescence in the UV. These photons are collected as the laser is scanned through the specimen, and the resulting 3-D image can be viewed and analyzed on a computer monitor. For these studies, the researchers used basal leukemia cells from rats. "This three-photon excitation produces very high ener...Stuttering Appears To Have Strong Link To Family Genes, Researchers Say
...m studies of children who begin to stutter, having collected dataon more than 150 children so far. The project has examined numerous areas,such as speech, language, and emotional and cognitive development. Researchers long have known that stuttering tends to run in familiesand that persistent stuttering is mu...Two Parasitic Wasps Show Promise For Controlling Pest Flies
...mans. Researchers from the University of Illinois collected fly pupae frommanure, spilled feed, along fence lines, near water sources and waste pilesof straw and hay at feedlots. The scientists then looked for the presenceof either emerging flies or the parasites that kill them. The predominant parasites th...Penn State Researchers Study Used Mushroom Compost
...the nitrogen content and composition. The leachate collected from thelysimeters will be analyzed for the same organic and inorganic contents. "When we are done, we should know what is going on in the weatheringcompost, what is leaching out of the compost and what the final composition ofthe compost i......ective work. It began with are-examination of data collected by two British scientists, GeorgeVarley and George Gradwell. They collected data for some 16 yearson the interactions of two insect species, the winter moth andthe green oak le...Evolution Re-Sculpted Animal Limbs By Genetic Switches Once Thought Too Drastic For Survival
...tead, Patel and Averof turned to crustaceans. They collected a wide range ofspecimens--13 separate species from nine different orders--many of them at theSmithsonian Field Station in Belize. "Crustaceans have far more variation than insects in their body plan," Patelsaid. "If that's surprising, it's because pe...Newly Discovered Human Protein Provides Important Target For Cancer Therapy
...ivide and multiply without limit. Evidence collected by many laboratories indicates that the clock orcounting mechanism relies on specialized bits of DNA, called telomeres, at theends of each human chromosome. In the absence of telomerase enzyme, thesespecialized end-structures grow shorter with each ...Oak Regeneration In Some Ohio Forests Is Failing, Researchers Find
...ight and has moderately dry soil. McCarthy collected data for the site condition study in 1995, a yearbefore the sites were burned. His preliminary studies of areas that were burnedin 1996 and earlier this year suggest that the burn project is having thedesired effect -- more sunlight is reaching the f...Menstrual Phase Linked To Ineffective Mammograms
...from the Canadian National BreastScreening Study collected from 8,887 menstruating women who were 40-44 years old whenthey entered the study. The investigators compared mammogram results of women inthe follicular phase of their menstrual cycle (days 1 to 14) with those in theluteal phase of their cycle...A New Biochemical Link Established Between Stress, Sex And Dominance
...ft through gravel to eat the decaying plant matter collected there. Overturned flower pots imitate the rocky nooks that male cichlids defend as spawning sites in their territories. By setting up various versions of this environment and introducing various combinations of male and female fish, Fernald has been ...E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab
...s issue of Science is a global analysis ofthe data collected by Blattner's team in collaboration with Monica A. Riley of the Marine Biological Laboratories in Woods Hole, Mass., and Julio Collado-Vides of the University of Mexico at Cuernavaca. The report, first and foremost, represents a record of the...Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
...temperature and humidity. A number of other sites collected concentration data. Other study findings include: Particle concentrations varied widely from site to site. Concentrations peaked around 9 a.m. and 7 p.m. Average concentrations of particles exceeded the EPA standard seventimes, o...