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Tag: "danger" at biology news

When the label says 'low fat,' calories can pile up, study says

...ic impact on those who are overweight. They are at danger for really overindulging when they see something with a low-fat label. If we are looking for an excuse to eat, low-fat labels give it to us." He recommends that low-fat-labeled foods post larger, more realistic serving sizes, which might deter peop...

Did 'ABCs' cause Uganda's fall in HIV rates?

...against HIV," they say, "puts these girls at great danger of exploitation and ignorance, depriving them of the opportunity to learn the needed tools to approach sexuality in a healthy and informed manner." ...

HIV/AIDS linked to extensively drug resistant TB

...mportance," said Friedland. "MDR and XDR carry the danger of blunting or reversing the success of TB programs and the roll-out of anti-retroviral therapies for HIV where they are desperately needed in resource limited settings. Urgent intervention is necessary, especially now that we know that MDR tuberculo...

Study highlights new and cheaper way to treat heroin addiction

...e risk of infection," he said. "Apart from the danger of contracting AIDS, drug users run the real risk of exposure to the potentially fatal liver disease, Hepatitis C. We face an epidemic of Hepatitis C in Scotland, with 40% of young people who have been injecting drugs for more than two years being i...

Plants give up answers in the war on bacteria

...e part of the plant's immune system that can sense danger and respond by shutting down. The lab performed experiments on Arabadopsis, a common laboratory plant, but the mechanisms could be universal across all land plants. "When we started looking more closely, and put bacteria on a plant surface, stoma...

Malaria treatment efficacy compromised in certain HIV-positive patients

... says Dr. Van geertruyden. This finding exposes a danger that implementing new malaria combination therapies to treat the disease in immune-suppressed patients could lead to the emergence and spread of antimalarial drug resistance. "This is a major concern, as antimalarial drug resistance is now generally...

Global map shows new patterns of extinction risk

... is a hot spot for threatened birds because of the danger posed by introduced rats and cats. Mammals are highly threatened across eastern Africa due to hunting and the bush meat trade The tropical, rainforest-clad mountains of northern Australia are home to many declining frog species, although the prec...

Nonvenomous Asian snakes 'borrow' defensive poison from toxic toads

...owed toxins were more likely to turn and flee from danger than to hold their ground and perform a toxin-releasing defensive maneuver. "Sequestration of toxins in a specialized [neck gland] structure in a vertebrate is a remarkable finding," said William Zamer, IOS deputy director at NSF. "This finding of...

New evidence of 'human' culture among primates

... he said. "They would seem to be communicating the danger to one another at the same time. "We already know that these monkey populations use stones as tools to dig holes or to forage and questions remain about why this happens in this area. Because it is quite dry and barren, it is possible they learn ...

Bats prey on nocturnally migrating songbirds

...orth-south or south-north nocturnal movements. The danger seems especially acute where birds' flight routes ...igratory passerines. Actually, the newly uncovered danger comes from the deep black sky, in the form of a 45 cm wing-spanned aerial-hawking mammal, equipped w...

Manipulating nature: Scientists query wildlife birth-control method

...o combat disease-causing organisms. But there is a danger that the selected minority might be more susceptible to diseases, or that they would be better at carrying disease-causing agents which could affect other animals with which they come in contact. "Unless we are certain about these effects, alteri...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...lu virus is needed when growing vaccine in eggs, a danger when working with a potent bird-flu strain. The technology would also help make it possible to boost the dose that patients receive, by increasing the nation’s capacity to churn out vaccine. That’s especially crucial in the fight against bird flu,...

Mercury contamination of fish warrants worldwide public warning

...opsis of the latest scientific knowledge about the danger posed by mercury pollution. It presents 33 principal findings from five synthesis papers prepared by the world's leading mercury scientists and published in the same issue of Ambio. The declaration and supporting papers summarize what is currently ...

Woman's Day and For Womens of Science

...opsis of the latest scientific knowledge about the danger posed by mercury pollution. It presents 33 principal findings from five synthesis papers prepared by the world's leading mercury scientists and published in the same issue of Ambio. The declaration and supporting papers summarize what is currently ...

Fascinating spider silk

...es of their webs and to rappel away in the face of danger is made of two different proteins. The Munich team has now successfully used genetic engineering to produce one of the spider silk proteins of the European garden spider (Araneus daidematus). While purifying the protein by dialysis, the researchers o...

Spreading viruses as we breathe

...g 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 Hong K...

Double the death rate from cirrhosis for 'blue collar' men

...m lower socio-economic backgrounds were in greater danger of liver cirrhoses because of their heavy and binge drinking. Liver cirrhosis accounted for 3.3 percent of all deaths among men aged between 15 and 64 in Australia in 2002 (543) and is the 10th largest overall killer of men. Cirrhosis is beli...

'Smart' mice teach scientists about learning process, brain disorders

...hat a once-threatening situation no longer poses a danger is a major goal. In addition, Cdk5 is heavily implicated in Alzheimer’s disease and addiction to drugs of abuse, so understanding how the enzyme affects the brain and behavior might aid in the development of new treatments for these and other cond...

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