News tagged with control mechanisms
Recycler protein helps prevent disease
Apr 30, 2009 |
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Recycling is important not only on a global scale, but also at the cellular level, since key molecules tend to be available in limited numbers. This means a cell needs to have efficient recycling mechanisms. Researchers at ...
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Ladder-walking locusts show big brains aren't always best
11 hours ago |
5 / 5 (4) |
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Scientists have shown for the first time that insects, like mammals, use vision rather than touch to find footholds. They made the discovery thanks to high-speed video cameras - technology the BBC uses to ...
Knockdown of E2F1 reduces invasive potential of melanoma cells
Dec 23, 2009 |
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Inhibition of transcription factor E2F1 reduced epidermal growth factor receptor (EGFR) expression and reduced the invasive potential but not proliferation of metastatic melanoma cells, according to a brief communication ...
Researchers reveal secrets of duck sex: It's all screwed up
Dec 23, 2009 |
3.7 / 5 (9) |
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Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...
Mystery solved: Scientists now know how smallpox kills
Dec 22, 2009 |
5 / 5 (10) |
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A team of researchers working in a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, GA, have solved a fundamental mystery about smallpox that has puzzled scientists long after the ...
Imaging tests identify role of allergies in chronic sinus disease
Dec 21, 2009 |
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Exposing patients with chronic sinus disease to allergens and then obtaining repeated images by X-ray or ultrasound reveals that nasal allergies may be involved in some cases of chronic sinus disease, according to a report ...
Postural sway among abstinent alcoholics can be improved up to a point
Dec 18, 2009 |
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Excessive sway during quiet standing is a common and significant consequence of chronic alcoholism, even after prolonged sobriety, and can lead to fall-related injury and even death. A new study of residual postural instability ...
How the daisy got its spots... and why
Dec 18, 2009 |
4.5 / 5 (2) |
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Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral ...
Genetic variant may control lung function and risk of COPD
Dec 17, 2009 |
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Researchers have discovered evidence that suggests a genetic variant may be associated with better preserved lung function among children with asthma and adults who smoke, according to a new study funded by the National Heart, ...
Cannabis and adolescence
Medicine & Health / Psychology & Psychiatry
Dec 17, 2009 |
2 / 5 (5) |
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Canadian teenagers are among the largest consumers of cannabis worldwide. The damaging effects of this illicit drug on young brains are worse than originally thought, according to new research by Dr. Gabriella Gobbi, a psychiatric ...
Better education associated with improved asthma
Dec 17, 2009 |
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Individuals with more education suffer less from asthma. Researchers writing in BioMed Central's open access journal Respiratory Research have found that having less than 12 years of formal schooling is associated with w ...
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