ScienceDaily Top Science Headlines
for Sunday, November 28, 2010
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Whale sharks use geometry to avoid sinking (November 27, 2010) -- They are the largest fish species in the ocean, but the majestic gliding motion of the whale shark is, scientists argue, an astonishing feat of mathematics and energy conservation. Marine scientists now reveal how these massive sharks use geometry to enhance their natural negative buoyancy and stay afloat. ... > full story
Diabetes drug could work against Alzheimer's, animal study suggests (November 27, 2010) -- The diabetes drug metformin has an effect against one of the main causes of the Alzheimer's disease, according to new research in animal models. ... > full story
Large Hadron Collider experiments bring new insight into primordial universe (November 27, 2010) -- After less than three weeks of heavy-ion running, the three experiments studying lead ion collisions at CERN's Large Hadron Collider have already brought new insight into matter as it would have existed in the very first instants of the Universe’s life. ... > full story
Reliable culture of human embryonic stem cells (November 27, 2010) -- Human embryonic stem cells have enormous potential for use in pharmaceutical development and therapeutics; however, to realize this potential there is a requirement for simple and reproducible cell culture methods that provide adequate numbers of cells of suitable quality. ... > full story
Oldest salt mine known to date located in Azerbaijan (November 27, 2010) -- Archeologists have recently shown that the Duzdagi salt deposits, situated in the Araxes Valley in Azerbaijan, were already being exploited from the second half of the 5th millennium BC. This is the most ancient exploitation of rock salt attested to date. And, to the researchers' surprise, intensive salt production was carried out in this mine at least as early as 3500 BC. ... > full story
Being faced with gender stereotypes makes women less likely to take financial risks (November 27, 2010) -- Last year Nicholas Kristof declared in his New York Times column what banks need to fix their problems: Not just a bailout, but also "women, women, and women." Women are generally thought to be less willing to take risks than men, so he speculated that banks could balance out risky men by employing more women. Stereotypes like this about women actually influence how women make financial decisions, according to a new study. ... > full story
Sewage water bacteria: 'Missing link' in early evolution of life on Earth? (November 27, 2010) -- A common group of bacteria found in acid bogs and sewage treatment plants has provided scientists with evidence of a 'missing link' in one of the most important steps in the evolution of life on Earth -- the emergence of cells with a nucleus containing DNA (eukaryotic cells). ... > full story
Severe asthma more prevalent than thought, related to pronounced nasal symptoms (November 27, 2010) -- People with multi-symptom asthma more often have night-time awakenings due to asthma-symptoms, a sign of severe asthma. Researchers have shown that asthma with multiple symptoms is more highly prevalent than previously suggested, comprising 20- 25% of all asthmatics. ... > full story
Finger-trap tension stabilizes cells' chromosome-separating machinery (November 27, 2010) -- Scientists have discovered an amazingly simple way that cells stabilize their machinery for forcing apart chromosomes. ... > full story
Epilepsy: Women need specific treatment, experts say (November 27, 2010) -- Doctors treating female epilepsy patients have to take account of the specific hormonal situation in women. Such an approach can often reduce the limitations imposed by the disease, according to experts. ... > full story
A new electromagnetism can be simulated through a quantum simulator (November 27, 2010) -- A quantum simulator is a variant of a quantum computer that allows us to outperform classical computers in the understanding of complex quantum systems. ... > full story
Elderly to outnumber children by 2050 in most parts of world (November 27, 2010) -- In just a few decades, there will be more elderly people than children in most parts of the world (with the exception of Africa). Media reports on the world's aging population tend to focus on pensions and care for the elderly. But other changes could be just as important. What will happen to family life, for example? And what will the relationship between the generations be like when so many of us live longer and have fewer children? ... > full story
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