Tag: "decreases" at biology news

Pool Of Latently Infected, "Resting" Cells Established Early In HIV Infection

...iated early in infection, may result in pronounced decreases in the pool oflatently infected, resting CD4+ T cells," says Dr. Chun. "A smaller pool of latently infected cells would be more likely to ultimately becontrolled by the immune defenses of the patient," adds Dr. Fauci. The NIAID investigators and ot...

New Long-Term Ecological Research Site Funded For Plum Island Sound Ecosystems Study

...creases sediment in a drainage basin, whiledamming decreases sediment discharge. Climate variability and long-termpatterns of climate change can also have immense effects on the timing,magnitude and nature of material inputs. Infrequent storms can accomplish indays what would normally occur over decades. ...

New Environmental Monitoring System To Reduce Costs And Improve Efficiency

...roundwater and air.The speed of light increases or decreases when passing through materialsof differing optical properties, Hartman explained. Detection ofcontaminants becomes possible by measuring a contaminant's influence onthe optical properties of the sensor. Then researchers observe theeffects on these pr...

School Breakfast Participation Leads To Academic, Psychosocial Improvements

... increases inmath grades and significantly greater decreases in absence and tardiness duringthe four-month study period than did students whose school-breakfastparticipation remained the same or decreased. They also showed greaterimprovement in student-reported levels of depression and anxiety and, for theBal...

Common Type Of Aircraft Wing Susceptible To Hazardous Icing

...e of ice can quickly form, which increases dragand decreases lift, with potentially deadlyconsequences. "On this particular airfoil, we saw an 80 percent loss in the maximum liftingability of the wing due to an ice accretion thatwas only three-quarters of an inch high," Bragg said. "This type of airfoil isvery...

Gene Influences How Lifestyle Affects Blood Cholesterol

...k can be influenced by factors such as smoking and decreases or increases inbody fat," says Srinivasan. Currently the test for (apo)E genes is only used in genetics laboratories and isnot available to the general public. The findings came from the Bogalusa Heart Study, based at Tulane UniversityMedical Center...

Cholesterol Inhibitors In Garlic Identified

...have identified agroup of chemicals in garlic that decreases cholesterol production by livercells 40 to 60 percent in laboratory tests. The study is among the first to pinpoint the specific garlicconstituents that may be responsible for the cholesterol-lowering effectsobserved by researchers earlier i...

Native Gray Ants Play Positive Role In Valley Peach Orchards

... for foragingterritory, any cultural practice that decreases one species may allow the otherspecies to increase in numbers," Daane said. The only cultural practice that dramatically lowered native gray antabundance was in-season application of organophosphate, carbamate or pyrethroidinsecticides. And ...

Global Climate Change Model Predicts Changes In U.S. Ecosystems

...r, produces a range of scenarios from increases to decreases in annual water yield. Under all scenarios, winter runoff would increase because of a decreased snowpack, with the possibility for widespread flooding in the West. What can be done to manage global warming? "These changes likely willresult...

UI Researcher's Study On Termite Bacteria May Aid In Greenhouse Gas Understanding

... could lead to improvements in cattlenutrition and decreases in their methane emissions, Leadbetter said. As a contributor to global warming, methane is second only to carbon dioxide,according to the EPA. Over the last 200 years, methane concentrations have morethan doubled, largely due to human-related activ...

Life Among Dead Brain Cells: Discovery Could Help Improve Memory Capacity Of Stroke Victims

... the numbers of stem cells and newly formedneurons decreases as the brain ages. For stroke survivors, recovering speech or motor skills typicallyrequires many years of speech and physical therapy. Sharp cautions that moreresearch is needed to determine whether or not sparking the growth of stem cells...

Use Of Protease Inhibitors For HIV Associated With Dramatic Rise In Oral Warts

...searchers conclude.The increases in oral warts and decreases in the other three conditions werehighly significant statistically, according to study The UCSF team includes John Greenspan, BDS, PhD, director of the Oral AIDSCenter and the AIDS Clinical Research Center, and chair of the stomatologydepartment; Al...

H Pylori Screening To Reduce The Risk Of Gastric Cancer

...her the elimination of H pylori infection actually decreases an infectedperson's already-increased risk for thi...ombinationof two antibiotics and a medication that decreases acid product in the stomach. This treatment plan is successful more than 90 percent of the time inpe...

Trees Need Calcium Too

...er temperatures. Thesestresses have been linked to decreases in calcium available to the trees.Although the spe... has identified a new mechanism by which acid rain decreases theavailability of calcium in the soil," said Gregory Lawrence, USGS researchscientist, Troy, N.Y., ...

Striking A Healthy Balance For The Elderly

...se copper deficiency. "While the need for calories decreases with age, the vitamin and mineral needsremain the same as in the 20s and 30s. The older adult should be advised toconsume a nutrient-dense diet to fulfill micronutrient needs," Kannan said. Kannan is currently working with David M. Hamby, U-M assist...

Purdue Study: Calcium May Curb Weight Gain In Young Women

...t in check, but can beassociated specifically with decreases in body fat," says Dorothy Teegarden,assistant professor of foods and nutrition at Purdue. She presented her findings Tuesday (4/20) in Washington at a conference ofthe Federation of American Societies for Experimental Biology. The women in t...

Reproductive Signals Affect Lifespan In Roundworm C. Elegans, Offering Possible Insight Into Human Aging Process

...r. This told them that a germ cellsignals somehow decreases lifespan. They then determined what gene the germ cell signal targets to exact its toll,the suspicion being that it acted on either the DAF-16 or DAF-2 gene, or both. They did so by deleting both the DAF-16 gene and the germ cells from a group ofnem...

Cardiac surgery patients at higher risk

...these results will change the impression that mild decreases inpotassium are within normal limits," says Joyce Wahr, M.D., principalinvestigator and associate professor of anesthesiology in the University ofMichigan Health System. "There is a consequence and we should have a heightenedawareness that it could b...

Meditation decreases blood pressure

Transcendental Meditation decreases blood pressure by reducing constriction ofthe blood vessels and thereby decreases the risk of heart disease, new researchshows. Scientists at the Medical College of Georgia examined ...

Prescription for your heart: Relax

...ncreases the levels of atherogeniclipoproteins and decreases the rate at which fats are cleared from the blood after a meal. The longer fats reside in the body, the greater the risk ofcardiovascular consequences."...

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