Tag: "choosing" at biology news

Love at first smell

...perfume had been applied. Smell is important when choosing a partner, not only for humans but also fish. To f... to identify partners with suitable MHC molecules: choosing only males with the correct mix of immune genes critical for the survival of future offspring. In t...

BioMed Central welcomes the new National Institutes of Health public access policy

...es now have a new factor to take into account when choosing where they wish to publish their research. To fulfil the NIH request, authors publishing with most of the traditional subscription publishers will be expected to go through a process of resubmitting their papers to the PubMed Central repository. In a...

Red delicious, Northern Spy apples have most antioxidants, chemists find

...s studied. “When taste and texture do not matter, choosing an apple with a high proportion of polyphenols in the flesh and skin can potentially produce more health benefits,?Tsao said. “But eating any apple is better than eating no apple at all.?/p> Elsewhere, three recent studies by researchers at Corne...

Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage

...f early growth response (Egr) proteins, with cells choosing the gamma-delta lineage expressing far greater quantities of Egr proteins than those adopting the alpha-beta lineage," explained Wiest. "Egr proteins regulate which cellular genes are turned on or off so we think that high-level expression of Egr pro...

Active Vaccine Prevents Mice From Developing Prion Disease

...redesigning the vaccine for deer and cattle. After choosing the appropriate bacteria for each vaccine, they must genetically modify it to carry the prion protein. "These technical issues are not major hurdles," says Dr. Wisniewski. "Developing a marketable vaccine for livestock is something that is very achie...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...n a rapid transition case. "This study shows that choosing energy technologies with an eye toward improving health and quality of life in one of the world's most impoverished areas offers us opportunity to significantly reduce premature deaths, especially among women and children," said Ezzati. ...

Certain fish have a special mating preference

...nd if you think of them that way, females might be choosing just as they would for any morphological trait," he said. "This at least partially explains the variability in male genital morphology." Using this study as a springboard, Langerhans is exploring the role of genital divergence in the process of spec...

IMF Launches World’s First DNA Database for Myeloma Patients

...nd if you think of them that way, females might be choosing just as they would for any morphological trait," he said. "This at least partially explains the variability in male genital morphology." Using this study as a springboard, Langerhans is exploring the role of genital divergence in the process of spec...

Scripps research scientists identify infertility molecule

...cades have seen a dramatic shift in when women are choosing to have their first children. According to the U.S. Centers for Disease Control and Prevention, the average age of first-time mothers increased from about 21.4 in 1970 to nearly 25 in 2000. Many women wait until they are well into their thirties or ...

Gambling monkeys give insight into neural machinery of risk

... There was something intrinsically rewarding about choosing a target that offered a variable juice reward, as ...ld go up in the same way the monkey's frequency of choosing that target would go up. It was amazing the degree to which the activity of these neurons paralleled...

Discarded placentas deliver researchers promising cells similar to embryonic stem cells

...nd, create their own feeder layer, with some cells choosing to spread out at the bottom of the culture dish thereby giving those cells just above them the best environment for replicating and for retaining their stem cell characteristics. With the addition of various growth factors, the authors report the am...

'Patient-choice' C-section rate rises 36%: HealthGrades study

More women choosing C-sections when no medical necessity exists - Flo...orida increase most The number of pregnant women choosing to have a "patient-choice" Cesarean section (C-section) rose by 36.6 percent from 2001 to 2003, acco...

Biologist Discovers What May Be World’s ‘Pickiest?Mates

...hat larger female crabs couldn’t be as picky about choosing mates as their smaller counterparts. They took less time, she noted, because they entered fewer burrows, primarily because many of the burrows they passed were too small to accommodate them and successfully incubate their eggs and release their larva...

DNA size a crucial factor in genetic mutations, study finds

...0,000 times the enzyme will put in the wrong base, choosing for instance a G instead of a T to pair with an A. The rate that the enzyme accurately copies DNA is known as its efficiency. These rare and random mistakes can cause genetic mutations. While we tend to heap negative connotations onto the term, some...

Polio vaccination strategies assessed as eradication nears

...t threats to polio eradication, they conclude that choosing an appropriate vaccination strategy to prevent poliovirus re-introduction is an important and unavoidable task. Founded in 1904, The Journal of Infectious Diseases is the premier publication in the Western Hemisphere for original research on the pat...

'Bad' enzymes may wear white hats after stroke

... where she earned a degree in biochemistry. Before choosing him as her mentor for the HHMI fellowship, she worked in his laboratory for a summer before matriculating at Mt. Sinai School of Medicine in New York. She's scheduled to receive her M.D. in 2007. "I was very fortunate to work on all these projects,"...

Attention shoppers: Researchers find neurons that encode the value of different goods

...e.'" Everyday examples of economic choice include choosing between working and earning more or enjoying more leisure time, or choosing to invest in bonds or in stocks. Such choices have long been studied by economists and psychologists...

Salmonella caught red-handed

... major difficulty for developers of antibiotics is choosing the proper point of attack against bacteria. There are hundreds of possible points of attack, according to genome analysis and laboratory culture experiments ?but validation in in vivo infection models is largely lacking. Infection biologists and p...

UF researchers develop ways to keep the bloom on the rose

...ence in flower longevity, too. For instance, when choosing roses, buyers should look for freshly cut stems. Re-cut the stems, use a commercial flower food and place the flowers in a clean vase. Keep roses in a cool place, away from heat vents and out of direct sunlight. The findings also can be applied to l...

Therapeutic prospects beyond Vioxx

...sk of stomach problems, undermining the reason for choosing COX-2 inhibitors in the first place." A surprising finding came when the investigators turned to a drug target that might substitute for COX-2 ?an enzyme called microsomal prostaglandin E synthase (mPGES)-1. Other investigators had shown previously ...

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