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Tag: "greater" at biology news

Eating less salt could prevent cardiovascular disease

...ressure (pre-hypertension). They were therefore at greater risk of developing cardiovascular disease. 744 people took part in the first Trial of Hypertension Prevention which was completed in 1990, 2382 in the second, which ended in 1995. In both trials participants reduced their sodium intake by approximate...

Old dinosaur research leads to new honor

...re living in now ?and I think my work has led to a greater understanding of what happened then." Reisz earned three degrees in zoology at McGill University during the 1960s and 1970s, culminating in a doctorate in 1975. After spending a year at UCLA, he began research at the University of Toronto under an...

Gene study shows three distinct groups of chimpanzees

...ignificant genetic differences, two to three times greater than the variation between the most different human populations. In the April 2007 issue of the journal PLOS Genetics, researchers from the University of Chicago, Harvard, the Broad Institute and Arizona State show that there has been very little d...

Long-lived deep-sea fishes imperiled by technology, overfishing

...cience. Some of the fish species living at depths greater than 500 meters take decades to reach breeding mat...l said. The harvest of older fish may have an even greater impact on these threatened populations because older fish are more likely to breed successfully than...

Biodiesel won't drive down global warming

...to global warming, and could potentially result in greater emissions of greenhouse gases than from conventional petroleum derived diesel. This is the conclusion of a new study reported today in Chemistry & Industry, the magazine of the SCI. Analysts at SRI Consulting compared the emissions of greenhous...

Speeding 'fingertip' discovery -- 20 years of protein info in 1 place

... help researchers study their favorite proteins in greater depth. After all, there’s no sense in reinventing the wheel.? Pandey and his team now are curious about other chemical modifications of proteins, which are the “business-end?products of our genes. “There is evidence of other, more fragile modifica...

A steady, high-fat diet is bad, but the news gets worse

...ache. "Regardless of the task, we recorded greater reactivity among those who consumed the high-fat meal in several cardiovascular measures we recorded, including blood pressure, heart rate and the resistance of blood vessels," says Fabijana Jakulj, a U of C student who used the study as the basis fo...

Stanford scientists make major breakthrough in regenerative medicine

...primitive spinal cords, distinguishing them in the greater chain of life and on the evolutionary ladder. Specifically, sea squirts, like humans, belong to a group of animals called chordates (organisms with some level of spinal cord development), and many scientists believe that sea squirts approximate what ...

MicroRNA helps prevent tumors

... fact, the more that let-7 sites were damaged, the greater the number of colonies. Mayr also worked with MIT assistant professor Michael Hemann to inject these cells in mice with a compromised immune system. The scientists found that the mice with cells that expressed the version of Hmga2 with the disrup...

Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck

...se, easing pressure on foo d supplies and yielding greater greenhouse gas benefits. The fibrous part that makes up the bulk of plants, cellulose is the cheapest and most abundant plant material, from corn stalks left after harvest to wood chips from papermills and fast-growing weeds. "Our simulations hav...

Cracking open the black box of autoimmune disease

...s, we can now look for possible therapies with far greater precision." The immune system is often described as a kind of military unit, a defense network that guards the body from invaders. Seen in this way, a group of white blood cells called T cells are the frontline soldiers of immune defense, engaging...

New hereditary breast cancer gene discovered

...women with this syndrome run a nearly twenty times greater risk of contracting breast cancer than expected. Moreover, many of the women were young when they were affected by breast cancer," says Göran Stenman. The findings of the study show that women with this syndrome should be receive early mammograms...

2,000 influenza virus genomes now completed and publicly accessible

...ay not protect against another strain. An even greater concern is the potential for an influenza pandemic caused by the emergence of a new, highly lethal virus strain that is easily transmitted from person to person. Influenza pandemics have occurred three times in the last century, the most lethal of wh...

Baby fish 'smell their way home'

...ence of new species is a fresh reason to take even greater care in how we look after them." ...

Honeydew honeys are better antioxidants than nectar honeys

... honeys generated by bees feeding on honeydew have greater antioxidant properties than those produced by bees feeding on nectar. The study is published in this month’s edition of the Journal of the Science of Food and Agriculture. Naturally occurring antioxidants are important ingredients of many foods, and...

Hay fever can send work productivity down the drain

...le under the care of a family physician reported a greater severity of symptoms than did patients treated by an allergist as well as those who self-managed their allergy symptoms. “Family physicians tend to be the gatekeepers to allergists, and as such are more likely to have initial contact with allergy ...

Scientists identify specific enzymes that make meningitis hard to fight

...roles of two enzymes in mending DNA and gives us a greater understanding than ever before into why these infections are so hard for the body to fight. "We have also discovered that this novel combination of enzymes is present in a wide variety of bacteria and that it has a direct impact on the infectivit...

Magnetic system could be key to surgery without scars

...ruments can be locked in place. That allows a much greater range of maneuverability and the surgical team can more easily reposition the camera or instrument, said Dr. Cadeddu. In animal studies, surgeons have been able to successfully remove a kidney using the Magnetic Anchoring and Guidance System. ...

A revolution in the monitoring of unborn babies

...l these fetuses, the more we can monitor them, the greater the chance of us detecting that they are running into difficulties before it is too late to help them. This may involve urgent delivery of the fetus.? The device will be especially helpful in monitoring fetuses whose mothers have medical conditions...

Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates

... results could be achieved in institutions where a greater reduction is desirable. Dr Stone and colleagues used an interrupted time series design, which includes a single group of study subjects assessed before an after an intervention (in this case a change to antibiotic prescribing policy). This design...

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