News tagged with random effect
Physicists observe 'campfire effect' in blinking nanorod semiconductors
When semiconductor nanorods are exposed to light, they blink in a seemingly random pattern. By clustering nanorods together, physicists at the University of Pennsylvania have shown that their combined "on" time is increased ...
Jun 23, 2011 |
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New research finds no evidence that popular slimming supplements facilitate weight loss
New research evaluating the effectiveness of a broad selection of popular slimming supplements sold in pharmacies and health food shops has found no evidence that any of them facilitate weight loss beyond the placebo effect.
Jul 12, 2010 |
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Antioxidants do help arteries stay healthy: study
Long-term supplementation with dietary antioxidants has beneficial effects on sugar and fat metabolism, blood pressure and arterial flexibility in patients with multiple cardiovascular risk factors. Researchers writing in ...
Jul 05, 2010 |
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Can a formula predict the outcome of a soccer match?
(PhysOrg.com) -- Soccer, like most sports, is a game full of surprises and lucky or unlucky breaks. After all, if it was easy to predict the winner of a soccer match, there wouldn’t be much reason to watch ...
Mar 05, 2010 |
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Validity of cost-effectiveness models based on randomized clinical trials
Cost-effectiveness studies are widely used to guide prescribing policy in many countries, as part of health technology assessment programmes. However, a new study published this week in PLoS Medicine by Tjeerd-Pieter van St ...
Medicine & Health / Medical research
Dec 08, 2009 |
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'Colossal' Magnetic Effect Under Pressure
(PhysOrg.com) -- Millions of people today carry around pocket-sized music players capable of holding thousands of songs, thanks to the discovery 20 years ago of a phenomenon known as the “giant magnetoresistance ...
Jun 05, 2009 |
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Cattle respond to magnetic fields from power lines
(AP) -- High-voltage power lines mess with animal magnetism. Researchers, who reported last year that most cows and deer tend to orient themselves in a north-south alignment, have now found that power lines can disorient ...
Mar 16, 2009 |
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