Bacterial Toxin Surprises Scientists
...lstein. It may eventually be possible to take advantage of this large protein movement as a transport device for the delivery of drugs into human cells, Dr. Finkelstein said. But the researchers are not yet pursuing such applications. Instead, they're trying to fi...Researchers Pinpoint Site For Petit Mal Seizures In Brain
...sway before recovering. "Absence seizures usually take hold at a critical period in a child's initial education, and may be interpreted as a learning disability or isolate them from other children," Caddick said in an interview at Duke. "If these studies lead to more effective treatments, they can have a...Tumor Suppressor Gene Located In Liver Cancer Cells
...sts explained, then pharmaceutical companies could take into account the decreased likelihood of this genetic loss occurring in humans when determining whether to pursue the testing of a promising new drug. Jirtle and his colleagues are continuing their studies of the M6P/IGF2r by investigating whether t...Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
...8 than those that didn't. Foraminifera shells also take up more of one or the other isotope depending on t... glacial and interglacial intervals. "We wanted to take this new technique somewhere where we knew there was a temperature change, so we would be likely to ...Computer Program For Quicker, More Detailed Mapping
...anford Human Genome Center. "Previously, it would take months for us to build a map," saidMyers. "Now we ...s.The computers don't try everything -- that would take forever -- but theycome up with pretty good answers," said Kathleen McKusick, computerscientist at t...Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...ffers this scenario: "You go to a forest today and take a sample from a tree that you know grew to 1996. By counting 200 rings, you know that the tree is 200 years old and started growing in 1776. Then, you compare the pattern of its rings with those from a piece of wood from a building you know was bui......ry, are questions of bottom-line survival. It can take 20 to 30 years of careful breeding, testing, and evaluation before a variety is ready for release. New grapes that have been bred for the climate are eagerly anticipated. Under the leadership of Bruce Reisch, Professor of Grape Genetics in Cornell U...Honeybees In The Wild Nearly Gone In North America
...es arevery specific to certain crops. "Plus, if we take native wild bees and culture them, we'regoing to generate new problems there, too. If we bring together10 to 20 times the number of bees that were ever together before,we could expect to have disease outbreaks and other challengesoccur. We can't just......ur cities have led both politicians and drivers to take action. Drivers want to have more and more sophisticated air quality control within their vehicles and legislators, particularly in the United States, have moved to pass laws to restrict air pollution from cars. However these measures have been und...Bark Beetle Infestation Spurs Multifaceted Study
..., before salvage logging or controlled burning can take place, afull investigation of the archaeological sites and the environment is underway.Archaeologists have already surveyed the area for mill sites, camp sites,remnant roads and both prehistoric and historic occupation. The Comstock Lode, which was......l exploration. The technique allows researchers to take samples as small as a single cell and identify many of its components with unusually high confidence, something that is almost impossible with current analytical technologies, the researchers say. The technique could be used for molecular investigat...Human-Like Ability, Categorical Perception, Found In Insects
...1978 that crickets can detect bats' ultrasound and take evasive action, but those flight studies never answered the question: What is the cut-off line between "good" sounds and "bad", and how does the insect decide? The study is reported in the journal Science,(Sept. 13, 1996), in a report by Wyttenbach...Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...d,"she said in an interview. " 'Mining' means you take it all out until it is gone, and then youwalk away...re you know something happened in the past? Canyou take me there?'" She also used local people's memories to datethe ages of post-disturbance trees. Like S...PET Project Helps Reduce Pollution Threat From Heavy Metals
...ighways. It isessentially an upgrade." But it will take more than one storm to determine how well thePET prototype works in the real world. The researchers mustmonitor the system for several months to see how it holds upunder the freeze-thaw cycles of winter and spring and to see howroad salt and other de...End Of World Population Growth Projected For 21st Century
... serious problems inits pension system, China must take immediate and intensive actions. "The Future Population of the World: What Can We Assume Today?",edited by Wolfgang Lutz, is published by Earthscan (ISBN 1 85383 349 5)....Cholesterol Anchor Helps Signaling Proteins Direct Development
...ively on these results, it might be interesting to take a look clinically at the effect of a mother's diet...f the patterning events directed by these proteins take place before most women know they're pregnant. Hedgehog and other similar proteins act like constr...NCAR Scientists Trek To Africa For Biosphere-Atmosphere Chemistry Study
...several trips to Africa in the past three years to take preliminary air samples, install instruments, and ... problem in biosphere-atmosphere chemistry. Plants take up vast amounts of carbon, particularly in the lush tropics, but plants and soils also release carbo...Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms
... Laboratory System ship Thomas G. Thompson -- will take place from September, 1996 through March, 1998. ...on, it will complete a network of instruments that take continuous measurements of the aurora and the polar ionosphere (the highest layer of the earth's atm...Scientists Trek to Africa for Biosphere-Atmosphere Chemistry Study
...problem in biosphere-atmosphere chemistry. Plants take up vast amounts of carbon, particularly in the lush tropics, but plants and soils also release carbon, and the overall cycling in the tropics may be affected by the perennial fires. This fall's campaign is focused at two sites: one in a rain......they believetheir findings demonstrate the need to take brain effects and the timingof doses into account when considering hormone replacement therapy....