Tag: "new" at biology news
New Finding Suggests "HATs" Are Key To Gene Activation Puzzle
...Rochester, Allis and his colleagues have located a new
HAT that is part of atranscription complex, the group of proteins that binds to DNA and starts the process of transcribing DNA into RNA, themolecule that serves as a template for protein production. This is the first HAT discovered that has a known r...
Prostate Cancer May Be Predicted 10 Years Before Diagnosis
... beginning at age 40.In 1996, an estimated 317,100 new
cases of prostate cancer were diagnosed, and prostate cancer was responsible for an estimated 41,400 deaths. Prostate cancer rates are 37 percent higher for black men than white men. Between 1980 and 1990 prostate cancer incidence rates increased 6...
Proteins Interacting With RNA And DNA Are Surprisingly Similar
Chemists trying to produce new
and more effective antibioticshave made asurprising discovery; a protein that attaches itself to RNA,making itpossible for a certain antibiotic to fight bacterial infection,is remarkablysimilar to a class of proteins that bind to DNA. The proteins ha...
ORNL Microscope "Sees" Bumps That Reveal Partial DNA Structure
...olecule. These ORNL scientists are developing this new
imaging approach as analternative technology for DNA mapping. They think their technique will bemore accurate and perhaps faster than conventional methods. DNA, sometimes referred to as the blueprint for life, is a nucleic acidthat carries the geneti...
Selenium Supplements Can Reduce Cancer Rates
...t less total cancer than those taking a placebo, a new
study by Cornell University and the University of Arizona shows. "Although more than a hundred of animal and dozens of epidemiological studies have linked high selenium status and cancer risk, this is the first double-blind, placebo-controlled cancer...
Moving DNA Molecules With Magnetic Tweezers
...ules in ground-breakingresearch that could lead to new
surgical tools and drug deliverysystems. Using Wir...ctoralstudent in Europe, is reconstructing it in a new
lab at Hopkins.Here, he hopes to turn the magnetic surgery idea intoreality. He has attracted more t...
Bog Beetle, Misidentified For 85 Years, Is 'Discovered' At Cornell
...(Dec. 30, 1996) published the official name of the new
species and genus. Other entomologists can use the accompanying key to identify this new
species within their collections. The article was authored by Leibherr and Will. A member of the gr...
Bigger Biology Tackled Through Keyboards
...l ecological processes. Fortunately, a relatively new
field of science known as computational biologyis coming of age, according to a review paper in the Jan. 17 issue of theweekly journal Science by researchers from the University of California, Davis, and other universities. "Important biological is...
ORNL Finds Common Genetic Cause For Epilepsy, Migraine
...ill improvediagnosis and may aid in development of new
treatments for migraine. In addition to the role of genes suggested by family-, twin- andpopulation-based studies, such other factors as emotional stress and certainfoods and additives have been associated with migraine attacks. Isolation of the huma...
The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
...ards of a different sort have concocted a powerful new
way to visualize the full set of human chromosomes in a rainbow of colors. The new
technique, called "spectral karyotyping," translates computer-gathered light waves into a full-color...
Laser Microscope At Cornell Images Serotonin In Live Cells
...d engineering physics, who led the work. "It is a new
way of doing three-dimensional UV microscopy in functioning cells and the best way we know of for doing UV microscopy in thick tissues," Webb said. The studies were reported in a paper, "Measuring serotonin distribution in live cells with three-photo...
Researchers Corral Millions Of Microscopic Membranes
... are uniform in size and fixed in space makes many new
experiments possible. "We started out looking for ...membranes, we've come up with something completely new
and we're still coming to grips with the implications," said graduate student Jay T. Groves. The wor...
Learning From Birds And Bees: Engineers Study Insects For Ideas On Tiny "Micro Air Vehicles"
...apable of these and other tasks are the goalsfor a new
program proposed by the <AHREF="http://www.dar...namic techniques, severe weight restrictionsdemand new
types of flight controls, power sources, propulsion systemsand avionics to fit within the 50 grams (...
U.S. Geological Survey 1998 Budget: Increased Support For Drinking Water, Earthquakes And Biological Sciences
...s has come the opportunity tojoin with hundreds of new
cooperators in every state and more than 100countr...ping investigations. In concert with our old and new
partners andthrough a variety of efforts and products -- from maps and written reportsto our latest ...
Vietnamese Chemist Finds New Use For Old Cashew Shells
...University of Cincinnati and Vietnam could lead to new
rubberproducts improved by the oil squeezed out of...e determined byindustry once the properties of the new
rubber blends are known.But she expects the benefits of her research to stretch farbeyond the Univer...
Plants Need Vitamin C, Too
...for Plant Research Inc. at Cornell University have new
information to explain why plants make this important anti-oxidant. Humans are among the few species that do not produce their own vitamin C and must rely on eating the right foods to obtain it. Researchers at the Boyce Thompson Institute created mu...
A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
... In 1930, 47 years after the eruption, a new
island with its own smoking volcano suddenly appeared in the waters surrounding the battered Krakatau. This was called Anak Krakatau -- or child of the volcano. Over the years this second volcano has been erupting and gradually enlarging the islan...
Molecular Imposter Rebuts Long
...the amazingaccuracy of this genetic blueprint. But new
researchwith a molecular imposter is calling some ... of the Universityof Rochester. Kool adds that the new
information may helpresearchers develop new
drugs that are better able to sneak inand kill sickly ce...
High Levels of Vitamin C Prove Toxic to HIV
...IV infection, and cell metabolism, and may lead to new
therapeutic targets to counter the AIDS virus, he ...han-normal levels of glucose and vitamin C. In the new
study, led by Dr. Coralia Rivas and Dr. Juan Carlos Vera of Memorial Sloan-Ketterings Molecular Phar...
Duke University Students Devise Devices For The Disabled
... for the Disabled" course came to the rescue. The new
course, taught by assistant biomedical engineering research professorLaurence Bohs, challenges biomedical engineering seniors and graduate studentsto apply their knowledge and innovation to a "real world" projectaddressing unmet needs of the handicap...
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