Tag: "the" at biology news

Ocean Sediments Contain Record of Past Vegetation Fires in Africa

... much more past burning, at least in Africa during the Pleistocene era, than researchers expected. ...e geologists David Verardo and William Ruddiman of the University of Virginia in Charlottesville have found in their research on ocean sediments the first ...

Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease

...Duke University Medical Centerreports finding that the chemical nitric oxide is a universal signalingmole...cule that can control basic life processes down to the level of thegene, the master plan of a cell. The study findings, published in the Sept. 6 i...

Environmental Reform: The Next Generation Project

...eform: The Next Generation Project" will focus on the future of environmental policy over the next 25 years. Organized by the Yale Center for Environmental Law and Policy, the workshop will bui...

Asian Beetle, New In This Country, Threatens Brooklyn's Shade Trees

...ity scientists have confirmed what they believe is the first known infestation of an Asian longhorned bee... Norway maple tree population. The Norway maple is the most planted shade tree throughout New York state. This beady-eyed beetle, about 1-inch long, has co...

Study Shows Songbirds Switch From Bugs To Berries To Fuel Fall Migration

PROVIDENCE, R.I.--The early bird gets the worm. The smart birdsnares the berry. A new study by a Brown University researcher suggests that many songbirdsmigrating south eac...

Human-Like Ability, Categorical Perception, Found In Insects

...niversity study of insect hearing has found. Even the lowly cricket employs a sophisticated capability, ...that responds quickly," said Robert A. Wyttenbach, the Cornell postgraduate associate of neurobiology and behavior who gave crickets a perception test orig...

Newly Discovered Bacteria Produce Magnetic Material

...water have been discovered by microbiologists from the Department ofEnergy's (DOE's) Oak Ridge National L...coengineers drilling for oil and gas deposits near the Chesapeake Bay as partof a collaborative arrangement between Texaco and DOE's Office of Health andEn...

Duke Primate Center Sets October Expedition To Find 'Juliet'

...n Oct.2-18 expedition to capture a mate for Romeo, the only diademed sifaka incaptivity. The diademed sif...a graceful bright-eyed lemur, is consideredperhaps the most beautiful of primates, with its silky fur in rich shadesof yellow, orange, gray, white and blac...

Harvard, Duke Researchers Discover 'Off-switch' Inside Human Cells

...M, N.C. -- Researchers from Harvard University and the Duke UniversityComprehensive Cancer Center have di...itch"inside human cells that can deactivate one of the cell's most prevalentbiochemical mechanisms for responding to chemical stimuli such as hormones. Th...

Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'

DURHAM, N.C. -- In findings with implicationsfor the future of a commercially-important tropical wood, ...t new mahogany seedlings will successfully grow in the shadeof other trees -- mahogany trees included. Snook is deeply concerned about the "mahogany deser...

Major Plant Genome Research Project Underway

Scientists will soon have access to the first complete genome sequence of a flowering plant. The National Science Foundation (NSF), the Department of Energy (DOE), and the Department of Agriculture (USDA), have funded three groups of re...

How Birds Sing

...ing, memory and speech acquisition, researchers at the University of Chicago Medical Center have correlated the simple notes and more complex passages of a bird's song to activity in different areas of the brain....

PET Project Helps Reduce Pollution Threat From Heavy Metals

Cincinnati -- Researchers in the University of Cincinnati College of Engineering ha...f. The system isbeing field tested this fall along the second busiest stretch ofinterstate in Ohio. Doctoral candidate John Sansalone developed the new sys...

Discovery Of Cell Sites May Shed Light On How Bodily Systems Interact

...tain receptors for a hormone-like substancemade by the immune system and associated with declines in grow...stems to regulate animalgrowth and disease. First, the receptors were found on cells in the pituitarygland, and, second, they were on somatotrope cells, wh...

Discovery Could Help Understand Breast-Cancer Therapies

CHAMPAIGN, Ill. -- Breast-cancer researchers at the University of Illinoishave identified four amino acids viewed as leading actors in the bindingof estrogen and anti-estrogen hormones to receptor proteins in the femalereproductive system....

Component In Soy Products May Be Substitute For Estrogen Treatment

...um, by Universityof Illinois researchers attending the second International Symposium onThe Role of Soy i...rm study for evaluating changesin bone parameters, the results suggest a potential role for soybean isoflavonesin maintaining bone health, particularly in ...

Researchers Identify A New Cellular Structure: The "Dumposome"

A team of researchers studying the one-celled organism Tetrahymena has discovered a c...o be an entirely new organelle. It's introduced in the cover story of the October 4 issue of Cell . "The dumposome surrounds the DNA it's gobbling up...

Green Glow: Not Only For Halloween

More than two millennia ago, the Roman natural philosopher Pliny the Elder wrote of a "slime" that could be obtained from marine creatures and used to make objects glow ...

End Of World Population Growth Projected For 21st Century

...0;The world'spopulation, which has quadrupled over the past 80 years, may never double again,according to new population forecasts by the Population, Development andEnvironment Project at the International Institute for Applied SystemsAna...

New Software Provides Quick Analysis of ion-Channel Activity

BUFFALO, N.Y. -- The interpretation of the activity of ion channels -- the protein structures that regulate the flow of electrical current in cells -- can be so difficult and ...

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