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Tag: "greater" at biology news

HIV survival improves if patients stay in care

...ess during the year after starting treatment had a greater risk of dying than those who saw the physicians at least once each quarter. Patients with visits in one quarter had nearly twice the risk of dying compared to patients with visits in all four quarters. "The next step is to figure out how to get th...

High-dose anticlotting drug cuts heart attack, death risk in half

...sk of complications related to blood clotting, the greater the benefit from high-dose clopidogrel. The study will be presented at the Orlando SCAI meeting by Antonio Abbate, M.D., an assistant professor of medicine, Virginia Commonwealth University, Pauley Heart Center, Richmond, VA. ...

Confirmed -- deforestation plays critical climate change role

... to 130 billion tonnes of carbon by 2100, which is greater than the amount of carbon that would be released by 13 years of global fossil fuel combustion. So maintaining forests as carbon sinks will make a significant contribution to stabilising atmospheric greenhouse gas concentrations." In the first stud...

Spreading viruses as we breathe

...et drying on a surface could be infectious but the greater danger was droplets drying in the air. "A droplet can travel for 10cm before it dries in the air, it doesn't immediately fall to the ground." She said the study, funded by the Australian Research Council, was motivated by an outbreak of SARS in...

Implanting dopamine generators in brain cells obtains improvement in Parkinson's in monkeys

... On this occasion the research was extended to a greater number of non- human primates and for a longer period of time. The procedure involved implanting cell fragments extracted from the carotid body in the striate area of the brain. The carotid body is a small structure located at the bifurcation of the ...

DNA analysis suggests under-reported kills of threatened whales

...s ?or the number of whales killed is actually much greater than is being reported." To estimate the true number of whales in trade, the researchers used a novel model for "capture-recapture" analysis ?characterized by DNA profiles from each slice of whale meat ?which was developed by one of the co-authors...

Biodegradable microspheres deliver time release vaccines, stimulate different immune response

...e. If we can tailor the immune response, it holds greater promise for vaccines that we do not currently have," says Wilson-Welder. ...

City ants take the heat

... Gore's film, An Inconvenient Truth, has generated greater awareness of global warming, most people remain unaware of the more rapid warming that has occurred within major cities. In fact, large cities can be more than 10 degrees hotter than their surroundings. These metropolitan hot spots, which scientists ...

Scientists see DNA get 'sunburned' for the first time

...onger a DNA molecule was excited by UV energy, the greater the chance that it would sustain damage. So long-lived excited states were thought to be more dangerous than short-lived ones. But this study shows that the most common UV damage is caused by a very short-lived excited state. "The speed of this re...

Natural antibiotics yield secrets to atom-level imaging technique

...make it fit into the membrane better, resulting in greater effectiveness with smaller amounts of AMP. "Our overall mission is to use the kind of basic physical data we obtain from solid-state NMR spectroscopy to help interpret biological functions," Ramamoorthy said. The work is highly interdisciplinary, ...

Researchers find link between food odors and lifespan in fruit flies

...the longevity of the mutant flies was considerably greater than their wild-type controls. The paper will b...the longevity of the mutant flies was considerably greater than their wild-type controls. The paper will be published by Science Express, an online publicat...

BMI not accurate indicator of body fat

.... A person with a higher BMI is thought to be at a greater risk of heart disease, diabetes and other weight-related problems. "The overlying issue is the same criteria for BMI are used across the board," said Joshua Ode, a Ph.D. student in the MSU Department of Kinesiology and an assistant professor of ki...

Helium helps patients breathe easier

...roves the exercise tolerance of COPD patients to a greater extent than oxygen alone, which is currently used for treating patients with this disorder. People with severe COPD typically struggle for every breath while exercising and any improvements that could be made to their ability to perform exercise coul...

Mine runoff continues to provide clues to microbial diversification

...knowledge gained from this research will lead to a greater understanding of genetic diversity in related organisms and should lead to developments in human health and bioremediation.? The combination of mass spectrometry support from ORNL researchers with extensive reconstruction of genomes from community ...

Penn researchers show how nanocylinders deliver medicine better than nanospheres

...re cancer cells and shrinking the tumors to a much greater extent. Spherical nanoparticles typically only stay in circulation for a few hours. The research team used nanoparticles that contained one water-loving chain of a common polymer called polyethyleneglycol (PEG). PEGs are commonly found in everyday...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

Female stem cells derived from muscle have a greater ability to regenerate skeletal muscle tissue than male cells, according to a study at Children’s Hospital of Pittsburgh of UPMC. The study, which is being published in the April 9 issue of the Journal of Cell Biology, is the first ever to report a d...

Power-boosting signal in muscle declines with age

...al muscles of marathon runners typically have much greater mitochondrial content and a greater capacity to burn fat. Those properties can most likely be attributed to chronic activation of the AM...

Cambodian vulture nests offer hope for species

...sing. Satellite-collaring of animals has lead to a greater understanding of which areas are important to the two most threatened species, while simultaneous vulture 'restaurants' across the country provide both an additional food source for the birds and a chance to undertake coordinated counts to monitor th...

Eating with our eyes: Why people eat less at unbused tables

...red with those whose leftovers were removed -- was greater for men than for women. "The results suggest that people restrict their consumption when evidence of food consumed is available to signal how much food they have eaten," said Brian Wansink, the John S. Dyson Professor of Marketing and of Applied Ec...

Metacognition: Faced with a test, rats can check their knowledge first

...n task increased, and this decline in accuracy was greater when rats were not given the choice of declining the test—that is, when they were "forced" to take it. The findings indicate that rats were able to assess, on a trial-by-trial basis, whether they were likely to pass the test if they took it. The f...

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