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Tag: "bad" at biology news

Looks matter to female barn swallows

...ver of the journal Science (Sept. 30, 2005). "The bad news for male swallows is the mating game is never over," said lead author Rebecca Safran, who conducted the study while a Cornell postdoctoral researcher in ecology and evolutionary biology, and in the Cornell Laboratory of Ornithology. "It is dynam...

Fundamental discovery -- Bone fracture

... bone loss may have occurred. "As if this weren't bad enough, it is also true that the materials properties of the bone decrease with age," said Hansma. "Not only is there less bone, but what exists is less strong. The cause of this is not well understood. Our research is aimed at understanding that." ...

Expanding forests darken the outlook for butterflies, study shows

...larger forests and smaller alpine meadows. This is bad news for butterflies in the Rockies, such as the Parnasissus, which Roland studies, because they require two things that they can easily find in meadows: sunlight and stone crop. Butterflies need sunlight to elevate their body temperatures in order ...

Study shows eutrophic lakes may not recover for a millennium

...hosphorus tomorrow. It would have water quality as bad as the worst lakes in the world." Lakes that are that highly eutrophic, Carpenter notes, have a higher incidence of toxic algae blooms, which would make the lake unfit for swimming or exposure to domestic animals and pets. "And the odor cannot be u...

The synapse is a shotgun

...ere everybody thinks it is released, we get a very bad match to actual properties of the neuron. But if we model broader neurotransmitter release, where these alpha 7 receptors are located, we can match the actual properties of the synapse very accurately." This type of broader neurotransmitter distribut...

York scientists warn of dramatic impact of climate change on Africa

...ferent variables in lots of different ways and the bad fits are knocked out, leaving the best solutions." The York team collaborated with the Nees Institute for Biodiversity of Plants in Bonn and the South African National Biodiversity Institute to compile the world's largest database of Africa-wide pla...

Once given 'no respect,' cells' tiny RNAS take driver's seat

...e of these or other microRNAs is a good thing or a bad thing -- whether it would contribute to or help prevent cancer -- depends on their targets in the cell," adds Myc specialist Chi Dang, M.D., Ph.D., the Johns Hopkins Family Professor in Oncology Research and a professor of medicine in the McKusick-Na...

Neurotransmitters signal aggressive cancer, offer potential for early diagnosis

...ter July 4. "GABA appears to be an indicator of a bad prognosis for these cancers," says Jeffrey I. Gordon, M.D., director of the Center for Genome Sciences at Washington University. "But there's hope in our ability to identify substances, like GABA, that are associated with metastatic tumors. Usually t...

New factor implicated in allergy and asthma attacks

...rgies or asthma, breathing in pollen can be a very bad thing. Within minutes of inhalation by someone sensitive to their effects, these tiny particles can trigger severe inflammation of the respiratory passages, producing uncontrollable sneezing, coughing, or extreme shortness of breath -- symptoms agoni...

Anti-cancer Compound In Beer Gaining Interest

...own the ability to reduce the oxidation of LDL, or bad cholesterol. ...

New vaccine platform may fight infections with causes from influenza to bioterrorism

...n infection that in most people causes, at most, a bad cold. The findings are being published in the December 1 issue of the journal. The manuscript will be available online after 5 p.m. Nov. 23, 2005, at www.jci.org . "In addition to protection against pneumocystis, our vaccine platform may be effec...

Health benefits of a Christmas brandy

...your mind at rest that this amber liquid isn't too bad for you at all. In moderation, of course." Red wine is famously known as an effective antioxidant so it stands to reason that brandy, technically a grape-based spirit, could offer similar benefits, Dr Troup said. "We thought the antioxidants might ...

Underlying cause of massive pinyon pine die-off revealed

...team's next step is developing ways to predict how bad a drought must be to cause such large-scale die-offs. Breshears, Cobb and Rich's coauthors include Kevin P. Price and Jude H. Kastens of the University of Kansas in Lawrence; Craig D. Allen of the U. S. Geological Survey in Los Alamos, N.M.; Randy G...

Scientists pinpoint inflammation gene

...1' ability to purify the cells by clearing out the bad proteins tend to suffer higher levels of inflammation than people in whom the gene fulfills that role more efficiently, according to the study. The study found the same relationship between SEPS1 and inflammation in two geographically and ethnicall...

Clocking in Pillow Time without the Pillow

...s can't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a heavy backpack: every sleep hour missed adds an extra ...

Noise And Delays Explain Why Some Genes Oscillate In Activity

...s can't focus on the road. You also gain things: a bad mood and increased risk for diabetes, high blood pressure, and heart problems. Indeed, the effects of sleep deprivation can be so serious that some sleep scientists liken lifetime sleep debt to a heavy backpack: every sleep hour missed adds an extra ...

Molecular research suggest shift needed in how some drugs are created

...estern cannot possibly exist in humans, because of bad steric interactions that preclude the formation of this particular complex," Nair said. Steric interactions refer to contacts that result when two protein molecules bind with each other. Bad interactions mean that the proteins cannot line up and con...

Worms know bad food when they smell it

...s like compare the good bacteria they know and the bad bacteria they know to two completely unfamiliar ba...the good bacteria are safe and they learn that the bad bacteria are bad." The worms' avoidance of food that has made them sick in the past is analogous t...

Group proves it's possible to grow new lung alveoli by growing new blood vessels

...allowed us to save many more premature babies. The bad news is they're often at risk of developing bronchopulmonary dysplasia--a chronic lung disease caused by having to place the tiny infants on ventilators and oxygen-rich therapy for acute respiratory failure. It's really a win-lose situation: the bab...

Performing monkeys in Asia carry viruses that could jump species to humans

...uthor on the study. "The animals may be sick or in bad shape there, and they're mixed with other animals that potentially could have pathogens, and then they're put into contact with a dense human population." In this study, the researchers drew blood from 20 urban performing macaques in Jakarta, Indone...

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