Tag: "effects" at biology news
First-Of-A-Kind Study By University Of Georgia Ecologist Estimates Role Of Natural Forces On Insect Populations
...t collected at an appropriate scale to estimatethe effects
of plant quality on herbivore populations." H... could open new fields of inquiry into therelative effects
of predators, parasites, diseases and thequality or quantity of the food supply on insects. For inst...
Study: Device Prevents Epileptic Seizures, Doesn't Damage Hearts
...y works well in preventing seizures and has no ill effects
onpatients' hearts, according to University of Nor...people inthe United States." Possible side effects
include slight voice alterations and occasionaltight feelings in the throat, Vaughn said. Some patie...
Oak Regeneration In Some Ohio Forests Is Failing, Researchers Find
... change in the habitat, there could be system-wide effects
on all thespecies of insects, birds and mammals that live there, possibly even to thepoint that some species of animals or plants could become locally extinct." This concern is a driving force behind McCarthy's study, which was partof the fir...
No Link Seen Between Breast Cancer And Pesticides, PCB Exposure For General Population
...aby is exposed to these substances, the beneficial effects
of breast feeding appear to outweigh potential risks associated with these organochlorines. Results of the study will be presented at the International Society for Environmental Epidemiology in Taiwan on Aug. 20. The research involved 15...
Jefferson Scientists Find Potential Deadly Effects Of Two Missing Cancer-Suppressor Genes
... gene or genes and are used as models to study the effects
of cancer gene alterations, often helping scientists understand cancer mechanisms and develop effective therapies. The researchers found that male knockout mice died from cancer at an average of 273 days, which is perhaps two to thr...
A New Biochemical Link Established Between Stress, Sex And Dominance
...ears to be a trigger for many of the physiological effects
linked to long-term stress, from sour stomach to heart disease. Territorial rights The Fernald lab is stacked with aquariums equipped to imitate the conditions of life in shallow pools of Lake Tanganyika, where this breed of cichlid fish originated...
Experts: Public Will Accept Irradiation In Wake Of Meat Recall
...itioner's data have been studied to determine what effects
irradiation may have on hamburger and other types of red meat. Three main areas studied are: whether any chemical changes occur that can cause toxicity, how the microbial profile changes, and whether the meat's nutrient value is affected. "The requ...
Researchers To Investigate Years Before Menopause
...ought to lower the age of menopause, while the effects
of hormones from birth control pills and replacement therapy are unknown. "Much of what we know about women's reproductive cycles came from the first cohort of the Tremin Trust," says Mansfield, a faculty member in both Colleges of H...
Scientists To Study Effects Of Global Warming On Wetlands
...ect will determine the mechanisms and quantitative effects
of that phenomenon. In turn, temperature does have...he ecosystem." Chen said that studying the effects
of global warming in bogs and fensis important because peat is a major source of fuel and fertilizer...
Discovery Of Genetic Pathways May Provide New Ways To Combat Candida Infections
... to fight the organism's insidious and devastating effects
on patients with weak immune systems," says Dr. Fink. "Our study also shows that this genetic pathway is a common theme among fungal pathogens and so may provide important insights on how plant and animal pathogens work." The results are reported ...
Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
... Terrain program --a long-term effort to study the effects
that geographical features such asmountains and valleys have on air movement and pollution. The study was fundedby DOE and the Mexican government. Pacific Northwest National Laboratory organized the meteorologicalportion of the project and s...
Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
...e first trimester, so Fisher decidedto measure the effects
of hypoxia on the developing placenta, thestructur... "In both systems cells invade tissue, but the effects
of alack of oxygen are exactly the opposite," says Ludlow. "Bycomparing the two cell types, maybe we...
OHSU Scientists Discover Mice Lacking Dopamine Receptor Are Supersensitive To Alcohol, Cocaine And Methamphetamine
...stigate the role of this receptor in mediating the effects
ofvarious drugs," says Grandy. "We discovered that...hat the D4 receptor isimplicated in modulating the effects
of such drugs," says Grandy. "Consequently, the D4 receptor may be a new target for the treatment of...
CTC Visualizations Help Ecologists See The Forest And The Trees
...nce and explore SORTIE, successivelylooking at the effects
of variations in such processes as tree mortality."This whole exercise is really about identifying details at the individualtree level that are important to the large scale dynamic," explainsDeutschman. He ran hundreds of simulations examining differ...
Plant-Based Therapies Examined For Colon Cancer Prevention
...Ds in hindering cancer, yet may lack theirbad side effects
such as irritating the stomach lining or damaging the liver orkidneys," says Steven J. Shiff, M.D., assistant professor in the Laboratory ofHuman Behavior and Metabolism at Rockefeller. "If as effective or better thanthe drugs, these plant therapies...
Imaging Studies Illuminate Brain's Response To Cocaine
...his study gives us a detailed picture of cocaine's effects
on brain circuitsinvolved in both aspects of the r...ons to either block individualaspects of cocaine's effects
- like the rush versus the craving experience - oras broader treatments for cocaine abuse and addict...
Two-Pronged Attack On Immune System Cells Engineered By HIV Gene vpr: Effects Markedly Reversed By Antisteroid Compound RU-486
...ucing agent, to see if that drug could counter the effects
of Vpr.They added Vpr to populations of cultured l...our cell cultures, it markedly reversed many ofthe effects
of Vpr," says Velpandi Ayyavoo, PhD, lead author on the study and aresearch associate in Weiner's la...
New Way To Drive Chemical Reactions: Collision Of Liquids At High Speed
...iquid," Suslick said. "This is very similar tothe effects
of high-intensity ultrasound in a liquid, where the collapseof sound-driven bubbles generates intense local heating, forming a hot spotin the cold liquid with a transient temperature of about 9,000 degrees Fahrenheit,the pressure of about 1,000 atmos...
Popular 'Cure-All' Tea Can Cause Toxic Reactions
...however, identified these four patientsin whom the effects
were far from healthy: A 55-year-old woman with ... claimed therapeutic benefits nor its adverse side effects
have beenreported widely in scientific literature. Srinivasan and co-authors warn that this ...
Chesapeake Bay Sediment : Home To Pfiesteria-Like Microbes
...reamflow, salinity, and dissolved oxygen and their effects
on the plants and animals of the Bay.Sediment cores taken from the bottom of the Bay and its tributaries allow scientists to "look into the past" by analyzing the fossilpollen, algae, protists, molluscs, crustacea, and fish from as long ago as 3,000 ...
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