The Online Newsletter: ScienceDaily Top Science Headlines -- for Sunday, September 5, 2010

ScienceDaily Top Science Headlines

for Sunday, September 5, 2010

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Magnetism's subatomic roots: Study of high-tech materials helps explain everyday phenomenon (September 4, 2010) -- Theoretical physicists have created a new model that helps define the subatomic origins of ferromagnetism -- the everyday "magnetism" of compass needles and refrigerator magnets. The model was created to explore the inner workings of ferromagnetic compounds that are related to high-temperature superconductors. ... > full story

Hair provides proof of the link between chronic stress and heart attack (September 4, 2010) -- Researchers have provided the first direct evidence using a biological marker, to show chronic stress plays an important role in heart attacks. The scientists developed a method to measure cortisol levels in hair providing an accurate assessment of stress levels in the months prior to an acute event such as a heart attack. ... > full story

Novel nanotechnology collaboration leads to breakthrough in cancer research (September 4, 2010) -- A multidisciplinary group of researchers has produced a 3.6-angstrom resolution structure of the human adenovirus. Scientists are working with adenovirus as a vector for gene therapy, but have needed better structural information. ... > full story

Functional motor neuron subtypes generated from embryonic stem cells (September 4, 2010) -- Scientists have devised a method for coaxing mouse embryonic stem cells into forming a highly specific motor neuron subtype. The research provides new insight into motor neuron differentiation and may prove useful for devising and testing future therapies for motor neuron diseases. ... > full story

Helping corn-based plastics take more heat (September 4, 2010) -- A team of agricultural scientists are working to make corn-derived plastics more heat tolerant -- research that may broaden the range of applications for which these plastics could be used as an alternative to petroleum-based plastics. ... > full story

Next step in evolution? A technical life form that passes on knowledge and experience (September 4, 2010) -- Dutch biologist Gerard Jagers op Akkerhuis has developed the ‘operator hierarchy’ -- a system based on the complexity of particles and of organisms, which can predict the next step in evolution: a technical life form, that can pass on its knowledge and experience to the next generation. ... > full story

Most new farmland in tropics comes from slashing forests, research shows (September 4, 2010) -- A new study shows that more than 80 percent of the new farmland created in the tropics between 1980 and 2000 came from felling forests, which sends carbon into the atmosphere and drives global warming. But the research team also noted that big agribusiness has largely replaced small farmers in doing most of the tree cutting in Brazil and Indonesia, which may make it easier to rein in the trend. ... > full story

When it comes to the immune system, we're all more alike than previously thought, study finds (September 4, 2010) -- When it comes to the mechanics of the human immune system, we are all more alike than previously thought, according to a new study. ... > full story

Why fish oils work swimmingly against inflammation and diabetes (September 4, 2010) -- Researchers have identified the molecular mechanism that makes omega-3 fatty acids so effective in reducing chronic inflammation and insulin resistance. ... > full story

New animal model for hemophilia A developed (September 4, 2010) -- Researchers have developed a new animal model for studying hemophilia A, with the goal of eventually treating people with the disorder. Hemophilia A, a hereditary defect that prevents blood from clotting normally, is caused by a variety of mutations in the factor VIII gene. ... > full story

Many urban streams harmful to aquatic life following winter pavement deicing (September 4, 2010) -- The use of salt to deice pavement can leave urban streams toxic to aquatic life, according to a new study on the influence of winter runoff in northern US cities, with a special focus on eastern Wisconsin and Milwaukee. ... > full story

Verbal snippets offer insights on well-being amid separation, divorce (September 4, 2010) -- A new study of romantically separated people shows they offer clues to their emotional status in just a few seconds of conversation. ... > full story

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