Tag: "difference" at biology news

From Corn Rootworms To Art, Cornell's Reactor Is At The Core

.... Neither X-rays nor neutrons can readily see the difference between water and oil, he explained. With neutron radiography, however, there is the potential for distinguishing between the oil and water by modifying the water phase in one of two ways: add gadolium nitrate to make the water more opaque to neutr...

Nutrition Study Reshapes Strategies For Athletes

...e recommend for thegeneral population to eat. "The difference is that if you are less active, you should eat smalleramounts of the same types of foods: fresh fruits and vegetables, breads,grains, pasta, cereal, small amounts of low-fat milk and meat, and somefoods that make life interesting."...

Human-Like Ability, Categorical Perception, Found In Insects

...lity in some situations is our ability to tell the difference between sounds like 'ba' and 'pa,' " Wyttenbach noted. "Even though there is a continuum of variation between 'ba' and 'pa' based on voice onset time or VOT, which instruments can detect, our ears don't discriminate. We hear either 'ba' or 'pa' and...

New Software Provides Quick Analysis of ion-Channel Activity

...ormation on these proteins could make a tremendous difference in drug design, particularly for conditions where ion channels are implicated. For example, in people who have some kinds of inherited neuromuscular diseases, an amino acid in the receptors for the neurotransmitter has been altered, he said. These ...

An Equal Opportunity Extinction? Cincinnati Geologists Find Global Impact from Permian Die

...t harder than another. Hisanalysis showed no clear difference among regions. Temperateareas were hit just as har...environmental zone. Again,there was no significant difference among zones. The Late Permianextinction event affected them all equally. As a continuation of his re...

New Nonviral Gene Therapy System Could Help Fight Cancer

...themless effective in gene delivery. Another difference between T7 and current gene therapytechniques is that genes expressed using this method are transientand do not become part of the cell's chromosomes. The genesdissipate in a few weeks to a month. "For treatment of genetic birth defects, permane...

Selenium Supplements Can Reduce Cancer Rates

...ity than the placebo group, and almost all of that difference was due to some form of cancer," said Combs, who credits Cornell with having the longest history of research in selenium nutrition research in the world. "This is the first time anyone has shown that any single nutrient can result in such a reductio...

Birds Deal With "Cocktail Party Effect"

... songrecordings, they were easily able to tell the difference betweenthe two pairs. They could do this even when they heard songexamples that contained just one of the two species' songs in thepair, a bird song sound they had never heard before. Theyaccurately chose the correct species more than 80 percent of t...

A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens

... ash was my biggest surprise." Why the difference between the sites of the Washington and the Indonesian eruptions? The researcher's hypothesis is that the ash thrown up in the first days of an eruption is sharp and highly abrasive pumice -- basically powdered glass. But in the later stages, the...

Prostate Cancer's Aggressiveness May Be Predicted Early By The Ratio Of Free To Total PSA

... diagnosis), there was a statistically significant difference in the ratio of free to total PSA between men with aggressive and men with non-aggressive cancers (p=0.008). Among 14 men who had sera available for analysis at 10 years before diagnosis, all eight with aggressive cancers had a free to total PSA rati...

Duke Study Shows Early Marrow Transplant Key To 'Bubble Boy' Disease Cure

...ths andall survived. The Duke researchers found no difference in eventual outcomebetween identical or half-match stem-cell transplants, leading them to supportearly diagnosis and neonatal transplant as key to curing SCID patients. Newborn screenings can detect the genetic defect in SCID babies. Withthe mo...

Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool

...slands inthe parking lot, show as cool spots. The difference has to do with how materials absorb and release he...e tree islands in the lot were at 89 degrees F - a difference of 31 degrees! Nearby wooded areas were only 85degrees F. At night, the parking lot stayed warm, ab...

Cricket And Chemistry Combine To Provide New Understanding Of How Fats Work

...k have found new ways of distinguishing the subtle difference between the "leg stump" and "off stump" of fats th...bails" of the fat. This allows them to monitor the difference in effect of enzymes on the two different stumps. The research is already in use with industrial...

Two Parasitic Wasps Show Promise For Controlling Pest Flies

... That couldbe from the fact that there's a lot of difference in climate between Illinoisand the central plains." The U. of I. study provided the first comprehensive documentation ofnaturally occurring fly parasites in Illinois. The most common speciesin Illinois appears to be Spalangia nigoraenea , the same...

Resistance To Leptin Contributes To Obesity

...an mice by thesubcutaneous injection. "The difference between the increased potency of leptin in leanmic...in givenby injection. The basis for this apparent difference is not clear, but maysuggest that the transport of leptin across the blood-brain barrier, whichallow...

Scientists Discover How Genes Work Together To Control Neural Development

...at the very fundamentalcellular level, there is no difference between the human cell and the flycell," Lai explains. "Plus flies are a very good organism forgenetic engineering." During a fly's development, on about the fourth day of life, certainproto-eye cells receive instructions from the fly's genes to be...

Evolution Re-Sculpted Animal Limbs By Genetic Switches Once Thought Too Drastic For Survival

...l," Patel said. "In theseanimals, there's a marked difference between the appendages of the head and thethorax--the head has tiny appendages used for pushing food into the mouth, andthe thoracic appendages are long and feathery for swimming." But in more advanced crustaceans, the first segment in which Ubx-abdA...

Insulin Resistance Is A Risk Factor For Atherosclerosis In Whites And Hispanics

... other factors, the research showed that amoderate difference in insulin resistance had as large an impact onatherosclerosis in whites and Hispanics as other major risk factors, such ashypertension. However, no such association was present in African Americans. Howard said there is no clear reason why i...

No Link Seen Between Breast Cancer And Pesticides, PCB Exposure For General Population

...rines than healthy women who never breast-fed. No difference was seen for women in either group with a history of breast feeding. "These results suggest that higher blood levels of organochlorines were a risk factor for breast cancer only for women with no history of breast feeding," said Kirsten Moysic...

Planned Burning In Forests A Boon To Several Species Of Birds In Illinois

...such a small difference, Brawn said, can meana big difference in productivity and nesting success. "We haven't been able to find a lot of ways to increase the reproductivesuccess of birds living on the state's fragmented landscape," he said. "It's been a real problem. Illinois has been a population sink forye...

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