Tag: "higher" at biology news

First TableTop Source Of Concentrated X-Rays Built

...g as short as 2nm. The shorter thewavelength, the higher the spatial resolution of the beam. Another benefit of this new device is that the X-ray pulse duration is extremelyshort, enabling high temporal resolution imaging as well. In other words, theX-rays can be used as the world's fastest strobe light, ...

Relatives Of People with Colorectal Polyps Face Increased Risk For Colorectal Cancer

... 12 percent. The study also found that therisk was higher if the affected relative was diagnosed with polyps at a youngerage. The relatives were not at increased risk for other types of cancer. Dr. Neugut feels strongly that relatives of people with colon polypsshould be offered colonoscopy. "The be...

Interleukin-12 Helps Control Mycobacterium Avium Infection

...finterferon gamma, when given by itself, even at a higher dose than IL-12,interferon gamma was not more effective at clearing the bacteria thanantibiotics alone. Speaking of the newly opened protocol, Dr. Sher says, "Ethically, you can't takepatients off of antibiotic regimens known to be partially effectiv...

Pollution, Food Stress Take Toll On Bald Eagles

...ike bay. "All thecontaminants were six to 15 times higher in eaglets south of the mill," saysGill. "North of the mill, contaminants were much lower and nesting success wasabout 20 per cent higher." Each contaminant detected in birds south of the mill was below the levelestimated to cause lower nest...

Georgia Scientists Study Salt Marsh To Understand Global Warming

...he UniversitySystem of Georgia. One reason for the higher than expected results mayhave been the length of time the study was conducted; very few studieshave looked at decomposition rates by microorganisms over a two-yearperiod, as this ongoing study has done, Kostka added. Researchers believe microorganism...

Researchers Show Mechanism And Similarities Of Biological Clocks

...t night. Some neurobiologists believe that higher species evolved morespecialized mechanisms built around the ancient "core oscillator." Theseaccessories would allow an organism to harness the clock to suit to its ownneeds and changing conditions of light or temperature. Other authors on the...

The Fishing Hole Had Better Be Upstream From Commercial And Industrial Centers

...l. Organic matter, also a good food source, can be higher downstream ofsewage plants. Finally, tolerant species can have less competition for resourcesas other species are killed." However, he adds, "some pollution killseverything." Streams in primarily residential watersheds supported greater dive...

New Gene Therapy Technique Results In Efficient Gene Delivery

...hus had beeninfected by the virus. In fact, a much higher percentage of the cells wereinfected than expected. "This is really quite remarkable. I think jumping up anddown is the way you?d describe our reaction," says Young. The success may be due in part to the simplicity of the ALV system.Unlike HI...

Drunken Fruit Flies Reveal Molecular Pathway Regulating Sensitivity To Alcohol

...hat any one gene affects sensitivity to alcohol in higher animals. Thesignificance, said Heberlein "is that... can find homologous, or similarlyacting, genes in higher organisms, including mice and humans." Ultimately, ofcourse, if these genes do exist in humans the ...

Obesity Gene: Possible Link To Heart Disease Risk

...bloodleptin levels in 74 men. They found that the higher the level of leptin themore likely the men were to have the syndrome, and thus "perhaps a greater heartdisease risk," says Francisco Leyva, M.D., specialist registrar in cardiology atCharing Cross Hospital. "We have found that leptin concentr...

Environmental Testimony: Taiwan Mega-Complex Threatens Endangered Spoonbills And Efforts To Cut Greenhouse Gases, UD Prof Says

...Byrne testified. And, any developmentresulting in higher greenhouse gas emissions would place Taiwan in directconflict with the international community, which is trying to meet Kyoto (Japan)treaty targets to cut greenhouse gas emissions, according to Byrne. "Taiwan is the 24th largest source of carbon diox...

A New Molecular Marker For Prostate Cancer

... in regulating cell division faced a significantly higher riskof disease recurrence and death than patients with tumors expressing high levelsof the protein. "Physicians may be able to use this tumor marker to identify prostate cancerpatients most likely to harbor dangerous, life-threatening tumors," says ...

Edible Lily Plant Yields A Natural Pesticide

...ine organisms, they are rarely found interrestrial higher plants. Monde says that they carefully ruled out fungal or microbial origins of thesechlorine compounds, and he is convinced that only the lily plant isresponsiblefor making these compounds to defend itself from attack. These naturalorganochlorine p...

Rewiring The Brain

... platform, the researchers proved that rats on the higher dose-10micrograms-recovered faster than those on the 1 microgram dose (see Graph). Allthe rats receiving OP-1 recovered far faster than those in the control group. New Scientist issue 20th June 1998, page 14 Author : Andy Coghlan PLEASE MENTION NEW S...

Relapsing Fever Spirochete Switches Surface Proteins When It Changes Hosts

...her wild rodents found in coniferous forests inthe higher elevations of the Western United States serve as the primaryreservoirs for the relapsing fever spirochete. The soft-bodied ticks thatassociate with these rodents can remain alive and infectious for years withoutfeeding. Human cases of illness tend t...

Vitamin C May Reduce Angina, Heart Attack Risks

...pectoris or the risk of coronary eventslinked to a higher level of heart attacks, experts say. This, in fact, ishow nitroglycerin tablets work - they are often taken by patients to providenitric oxide and relieve the symptoms of angina attacks. And at least two other mechanisms which can help do that, Frei ...

Brain Antibodies Provide New Clues To Origins Of Tourette's

...ain tissue. The patients had significantly higher levels of antibodies againstproteins from the putamen, an area at the base of the brain involved inmovement. For two other brain areas studied, the caudate and the globuspallidus, there were no significant differences between patients and controls. ...

Life In Antarctic Ice May Compare To Mars

...formed the oxygen-rich atmosphere of Earth andmade higher life forms possible. And in the study, the researchers cite two locations where they feelconditions may exist that are similar to those found in barren Antarctica -Mars, and a large moon of Jupiter, Europa. "It's been suggested that M...

Pediatric Anesthesiologists Risk Halothane-Related Liver Injury

...sand 9 percent of general anesthesiologists showed higher than normal levels ofantibodies to p-58, a liver protein generally found in people with hepatitiscaused by exposure to halothane. The antibody level in the doctors was similarto that of one in five patients tested who had halothane hepatitis. Howeve...

UB Studies Link Low Dietary Calcium, Vitamin C With Increased Risk Of Gum Disease

...periodontal disease later in life than people with higher dietary levels of either nutrient. The two st...more of an insult to the gum tissues, so they need higher levels of vitamin C to help counteract smoke's toxins." Other researchers involved in the studi...

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