Tag: "controlling" at biology news

Killer Whales Have Begun Preying On Sea Otters, Causing Disruption Of Coastal Ecosystems In Western Alaska

...stable.Otters maintain the coastal kelp forests by controlling populations of seaurchins and other animals that graze on kelp. The kelp forests in turn providefood and habitat for a broad range of species. Where sea otter populations have dropped, the kelp forest ecosystem iscollapsing, said Estes, who has spent...

UCSF Finding Offers Insight Into Way Genes Regulate Aging And Life Span

...t a genealready known to play an important role in controlling aging in roundworms doesso not by acting within in... previously determined plays a significant role in controlling the agingprocess and life span of the roundworm known as nematode C. elegans. Fertile roundworms wit...

UNC-CH 'Groucho' Research Offers Insights Into How Embryo, Cancer Cells Communicate

...d on and turned off normally, shows the process of controlling signals is astep more complicated than we thought. "In a series of experiments, we found that Groucho and Tcf proteins acttogether to turn genes off like a light switch," Peifer said. "We already knewfrom earlier studies that we and others h...

Why Are The Fish Sick? Local Tip Suspected

...ive handling of the leakage from the landfillsite, controlling andstopping leakage, a survey of the landfill site and a general description ofleakage and sediment,information to the public and scientific review....

Research Suggests New Way To Gauge A Woman's Fertility

...hese ovarian follicles. Inhibins participate in controlling FSH levels, Danforth said. “The decline in ovarian inhibins but not in pituitary FSH suggests that the inhibins may be a better and more direct marker of ovarian age than FSH,” Danforth said. Co-authors for this research inc...

Patented Bait System May Hold Answer To Combating Formosan Termites

... newpatented bait system that holds the promise of controlling dreaded Formosansubterranean termites. Dr. Gregg Henderson and Dr. Jian Chen of the Louisiana State UniversityAgricultural Center developed the bait system that lures termites into a feedingchamber and then entices them into a second chamber ...

Nutrition Therapy Helps Patients Emotionally, Research Shows

...ient on the value of dietin controlling a condition while making sure the new dietfits the patient's lifestyle. "The idea is to manage the disease up front in a way the patient can live with it and prevent or delay long-...

A Protein Switch May Turn On Heart Cells To Combat Heart Disease

...ting that the "retinoblastoma" gene was criticalin controlling cell division, MacLellan and his colleagues focused on theprotein that this gene produces retinoblastoma protein, called Rb. Scientistsbelieve the Rb protein may help keep heart cells "dormant" so they no longer candivide. To test this theory, MacL...

Quicker Implementation Of Research Results

...ms - ADAMES" at the University ofMagdeburg include controlling the wing shape of high-speed aircraft and usingcar body sheets for active vibration damping. Whereas the liver has been well explored as an organ of detoxification, the"Mechanisms of gastrointestinal bioactiviation and biodeactiviation" are stilllarg...

Idun Pharmaceuticals Identifies Cell Type And Molecular Pathway Involved In TransplantationRelated Liver Damage

...novative human therapeutics with a primary focuson controlling apoptosis, or programmed cell death. In addition to its focus onsmall molecule inhibitors of apoptosis for applications in central nervoussystem disorders, cardiovascular disease, inflammation, and organ damage, Idun'sdrug discovery programs focus o...

Garlic Perfumes Poultry Houses

...onducted. While the garlic is effective in controlling odor, it is moreexpensive than basic chicken or hog feed. This means the eggs and pork mayrequire a premium price to be cost effective for commercial producers.However, if the products prove to contain a lower cholesterol level, theycould qualify as ...

Microbiologist Develops Method For Dyeing Fabrics With Gold

...rmed into particlesand grown," Todd explains. "By controlling their size, we can vary the color. "The particles are so small they can't be seen with a microscope," headds. "But they produce a bright signal with a very small amount of metal. Andsince metals can be combined into alloys, different combin...

New Findings On Receptor Regulation May Lead To Better Drugs For Diabetes

...gar in the body. That action is crucial to controlling adult-onset diabetes, whichresults not from a lack of insulin, but from the inability of cells to heedinsulin's signals, says senior author Mitchell A. Lazar, MD, PhD, professor ofmedicine and genetics at Penn. More than 15 million Americans are thou...

Oldest Ice Core From The Tropics Recovered, New Ice Age Evidence

...ssuggest that the mechanism controlling the onset and end ofthese cold, glacial periods may be tied to the changes in thetropical hydrological system. "It's very important to better understand the processesof this ...

Salmonella Vaccine Now Available For Poultry

... St. Louis hasreceived federal approval for use in controlling Salmonella bacteria in poultry. Megan Health Inc., a St. Louis based vaccine discovery company, has beengranted a United States Department of Agriculture (USDA) license for a vaccinethat controls Salmonella contamination of poultry products. The new...

Genetically Engineered Mice Exhibit Anxiety, Offering Insight Into Role Of Serotonin In Brain

...peof behavior, such as feeding, differs from those controlling other responses,such as anxiety, depression and aggression," said the senior author of thestudy, Laurence H. Tecott, PhD, a MD, a professor of psychiatry at UCSF. It does appear that elevated serotonin activity is associated with anxiety, andreduce...

Clemson Fire Ant Research Uses Biological Approach

...research system. The most common method of controlling fire ants is the use of bait thatthe ants discover...he various methods and regulatory requirements for controlling fire ants....

Leibniz Prize Winners 1999 - Most Highly Endowed German Promotional Prize For Ten Scientists

... basis of the function of the thalamusas the organ controlling the diurnal rhythm. Hans-Christian Pape's work ischaracterised by the fact that it covers the various organisational levels ofthe brain in both conceptual and methodological terms. In the person ofHans-Christian Pape a neurophysiologist is awarded th...

Americans Urged To Consume More Folic Acid

...n-traditional riskfactor and that "diet is a major controlling factor for blood levels ofhomocysteine." According to the Science Advisory, "a number of studies have shown inverserelationships of blood homocysteine concentrations with plasma/serum levels offolic acid, vitamin B6 and vitamin B12." Homocysteine is ...

Fruit-Fly Mating May Produce A Game Of Evolutionary Leapfrog

...equent offspring.The results revealed a new factor controlling sperm success:The male's genes had to match in certain ways with thefemale's genes. In theory, under those conditions, males with the mostsuccessful genetic makeups would soon evolve to dominate thepopulation. The researchers suggest that to foresta...

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