bilimselkonular science
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One in three UK adults—or 13 million people—will be obese by 2012, finds research published ahead of print in the Journal of Epidemiology and Community Health.
And almost half of them will be from low income and disadvantaged communities, widening the health gap between the haves and have-nots even further, say the authors.
The researchers draw their [...]
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For three years it was possible to do without it. But now it`s become necessary again. This coming New Year`s Eve, the radio controlled clocks will, after 0:59:59, instead of jumping to 1 o`clock at the next tick of the second, pause shortly in order to insert a small portion of extra time: a leap [...]
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Why do some species of birds lay only one egg in their nest, while others lay 10 or more?
A global study of the wide variation among birds in this trait, known as the "clutch size," now provides biologists with some answers. The study, published in the current issue of the journal PLoS Biology, combined data [...]
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Researchers who have been following the health of more than 120,000 residents of the Netherlands for more than two decades have found that smoking is associated with two forms of esophageal cancer as well as a form of stomach cancer, and that drinking alcohol is strongly linked to one form of esophageal cancer.
Researchers say that [...]
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Asthma may be overdiagnosed in countries like Canada, suggests a longitudinal study of 540 obese and non-obese adults that found approximately one third of Canadians with physician-diagnosed asthma do not have asthma when objectively tested.
Asthma rates have increased in Canada and the US by 75% between 1980 and 1994, and studies suggest a possible link between obesity [...]
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One of the most critical stages in establishing a pregnancy is the implantation of the embryo in the wall of the uterus. Although the accumulation of immune cells known as DCs has been observed in the uterus after fertilization and prior to implantation, their function was not known.
However, Steffen Jung and colleagues, at The Weizmann [...]
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Research from the University of Pittsburgh published in the Nov. 20 edition of the journal Heredity could finally provide evidence of the first stages of the evolution of separate sexes, a theory that holds that males and females developed from hermaphroditic ancestors. These early stages are not completely understood because the majority of animal species [...]
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Why do poppies and sunflowers grow as a single flower per stalk while each stem of a tomato plant has several branches, each carrying flowers? Dr. Zachary Lippman and colleagues have identifed a genetic mechanism that determines the pattern of flower growth in the Solanaceae (nightshade) family of plants that includes tomato, potato, pepper, eggplant, [...]
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A colon cancer cell isn`t a lost cause. Vitamin D can tame the rogue cell by adjusting everything from its gene expression to its cytoskeleton. In the Nov. 17 issue of the Journal of Cell Biology, Ordóñez-Morán et al. show that one pathway governs the vitamin`s diverse effects. The results help clarify the actions of [...]
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Molecular metallurgists galvanize and gild atoms and discover main principle for alloys.
They turned out to be steelworkers, running their steel mill in the nanoworld – the chemists around Prof. Dr. Roland A. Fischer (faculty of chemistry of RUB). In the neverland between molecule and metal they discovered a new family of compounds. The prototype of [...]
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