bilimselkonular science
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Tree-dwelling ants generally live in harmony with their arboreal hosts. But new research suggests that when they run out of space in their trees of choice, the ants can get destructive to neighboring trees.
The research, published in the November issue of the American Naturalist, is the first to document that ants bore into live trees, [...]
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Oncologists have had their hands tied because more than half of all human cancers have mutations that disable a protein called p53. As a critical anti-cancer watchdog, p53 masterminds several cancer-fighting operations within cells. When cells lose p53, tumors grow aggressively and often cannot be treated.
These tumors might be tough, but they`re not invincible, suggests [...]
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People who become ill from harmless smells are not being silly, says Dutch researcher Patricia Bulsing. Rather, they perceive these smells differently than other people. The smell is detected more rapidly by the brain and processed more deeply. If you expect to become ill from a smell, then the smell in question might really make [...]
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A pair of proteins may help explain why people with surgically removed colorectal cancer and who are overweight, physically inactive, and follow a Western-pattern diet may have an increased risk of dying of the disease or other causes, Dana-Farber Cancer Institute scientists report in a new study.
The researchers found that in people who have undergone [...]
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Aren`t you ashamed of yourself? All these years, you`ve been trying to build up your child`s self-esteem, and now a growing body of research suggests you may be making a big mistake. A study published in the December issue of Child Development finds that early adolescents with high self-esteem are more likely [...]
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Consumers face a barrage of product claims each day. What makes those claims believable? A new study in the Journal of Consumer Research says both marketers and consumers can benefit from information about the way people process product claims.
Authors Elise Chandon (Virginia Tech) and Chris Janiszewski (University of Florida) began their research by identifying four [...]
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In the first worldwide study of pesticides in fruit-based soft drinks, researchers in Spain are reporting relatively high levels of pesticides in drinks in some countries, especially the United Kingdom and Spain. Drinks sampled from the United States, however, had relatively low levels, the researchers note.
Their study is scheduled for the December 15 issue of [...]
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Research conducted by a team in Switzerland suggests that a family of genes involved in regulating the expression of other genes in the brain is responsible for helping us deal with external inputs such as stress. Their results, appearing in the journal Neuron, may also give a clue to why some people are more susceptible [...]
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Statin medications are used to lower patients` cholesterol levels, thus helping prevent coronary heart disease, stroke and other deaths related to high cholesterol levels. Statin use has grown rapidly since 1992, and seems likely to increase in light of the recent, widely-reported Jupiter Study on statin benefits in patients with low cholesterol but elevated C-reactive [...]
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In less than an hour, the immune system of the beetle Tenebrio molitor neutralizes most of the bacteria infecting its hemolymph (the equivalent to blood in vertebrates); this is rendered possible by a cascade of ready-to-use cells and enzymes.
Bacteria that resist these "front-line" defenses are then dealt with by antimicrobial peptides – a sort of [...]
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