Tag: "tend" at biology news

Aerosol pollutants in atmosphere likely masking global warming

...louds, the droplets formed on aerosol particulates tend to be smaller in size. Clouds harboring smaller droplets have larger surface areas, making them more reflective and sending more sunlight back to space, said Toon. Because of their diminutive size, the chances of the droplets coagulating into rai...

Protein that stimulates blood vessel growth also helps repair broken bones

...geon who works in Helms' lab. "The fractures that tend not to heal are open fractures and those from high energy accidents, such as high speed auto, or pedestrian vs. auto accidents,' he said. In addition to studying VEGF's role in bone healing, Helms' lab is examining whether it might also be importa...

The little protein that could

...compounds or anti-oxidants such as metallothionein tend to decrease. So you could say that someone who is older may have less of an ability to defend themselves, their brains may not be able to compensate for insults." Drinking alcohol could produce the kind of neurotoxic "insults" noted by Aschner. A...

Sea slug's shopping habits dictated by hunger, scientists report

...vior of most foraging animals," he said. "Animals tend to make wise decisions when they forage, and they do so whether or not they have lots of brain power."...

Analytical chemists earn national recognition for metals research

... seafood and sea plants. "Seafood and sea plants tend to accumulate arsenic," said Caruso. "We're inter...eople are looking at metals and toxicity, but they tend to follow the organism, and don't follow the metal. It changes. The difficulty is that it occurs a...

Researchers develop new technique for identifying remaining unknown human genes

...llenging. These elusive, as yet undiscovered genes tend to be expressed at low levels or only in certain cell types, or turned on only during specific developmental stages or growth conditions. Yet these genes may play important roles in normal processes or in the development or prevention of various dis...

Extinction-prone sunfish and suckers identified

...on notes that because the extinction prone species tend to have very specialized habitats, if they were introduced in other areas in an effort to save them, they would likely not make it. In a recent interview, the Penn State researcher said that the species he identified as extinction prone were prob...

Environmental issues fail to capture national interest, says Temple University professor on eve of 30th Earth Day celebration

...hey were around 1970." Today, Mason says, people tend to view crime and education as more pressing issue... As gas prices continue to remain affordable, "we tend not to be as concerned about energy efficiency as we were during the gas crises of the 1970s and ear...

Medical imaging shows dinosaur heart more like bird's or mammal's than reptile's

...of birds and mammals. In contrast, living reptiles tend to be more sluggish and can get by with less oxygen. The team therefore suspects that their dinosaur may have also had a metabolic rate higher than that of a typical reptile. Since most modern animals with high metabolic rates are also warm-blooded,...

Biomarkers: testing for alcohol consumption among women

...lihood of problem drinking. Biochemical markers tend to be less sensitive for women than for men. In addition to direct questioning of patients, biochemical markers may indicate drinking problems. The unique advantage of biomarkers is that they can not be feigned. They may confirm or bring into q...

Scientists on scent of better coyote management

...s without puppies have a smaller need for food and tend to choose smaller prey, like rodents and rabbits. One of the new fragrances tested elicited strong chewing behavior, a response that would be useful for getting the coyotes to absorb vaccines, says Mason. Vaccines must be delivered to the lining of ...

New genes and old genes contribute to personality traits

...its. Persons who have the 'short' form of the gene tend to be more anxious, worried, fearful, pessimistic, and cautious than people who have only the 'long' form. AUTHORS: Y Osher, D Hamer, J BenjaminBeer Sheva Mental Health Center, Faculty of Health Sciences, Ben Gurion University of the Negev, POB 4600,...

Key DNA enzyme can tolerate more mutations than expected

...minate most cancer deaths through delay. "People tend to think of mutations as constant -- as if you get a certain level a year," Loeb says. "You can manipulate the rates of mutation. In the case of cancer, the goal is to delay the rate of mutation. In the case of Taq, the goal is to increase mutations ...

Success of introduced Argentine ants tied to reduced genetic variation

...ere colonies are set up as family structures, they tend to recognize other members of their colony by how closely related they are." Tsutsui and his colleagues conclude that the low genetic diversity among the California ants is the result of the introduced ants having gone through a "genetic bottleneck...

Some alcoholics may self-medicate with carbohydrates between drinks

...d depression - are major cues for craving. People tend to drink more often when they're in good moods or ... don't have a problem with alcohol, but alcoholics tend to drink more when they're depressed, stressed, or angry." "What's interesting about this study," sa...

$16.3M grant will fund program to develop mouse models for neurological research

... "But spontaneous mutations arise infrequently and tend to hit the same genes over and over again, those that are easily mutated and whose unusual appearances are readily noticed by animal caretakers. The combination of chemical mutagenesis with dedicated, state-of-the-art physiological screening will giv...

Spiders get better web sites by rising early

...nts on their own webs. So the smaller individuals tend to back off without a physical confrontation when the big spiders are building their webs." Interestingly when the researchers removed the big spiders from the colonies, the little ones finished their webs over an hour earlier because they were not ...

Fragmented Forest, Fragmented Food

...have different microclimates. Edges of the forest tend to have drier soil and leaf litter and insects prone to desiccation may be excluded from these areas, she says. "In addition to understanding whether food supply varies with fragment size, we need to know why it may vary, " says Zanette. "A clear co...

Nurses, alert janitors boost seniors' mental health

...from earlier studies that people in public housing tend to be in greater need of psychiatric help." The PATCH project involved an unusually tight collaboration between an academic center and state and city agencies --in this case Hopkins, the Maryland Department of Health and Mental Hygiene and the Housi...

Researchers develop tastier low-fat cheddar

...an, buttery, "young cheese" flavors that consumers tend to prefer. "Most of the existing low-fat cheeses tend to be bitter, without many buttery notes," says Howard Morris, Ph.D., professor emeritus of food sci...

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