Teamwork: Where the weak help the strong
Group work is the name of the game in many companies. The thinking is that workers will learn more and help each other when they are put into groups composed of people with a variety of expertise. But does this always happen? Some recent research suggests that it may not … at least not always.
Shareholders lose when companies are sued for inflated stock prices
When investors buy stock at inflated prices, they have a right to sue the company for any losses. Unfortunately, securities litigation isn’t paying off for shareholders – even when they win. Instead, large institutional investors and lawyers rake in the money and existing shareholders end up losing out.
Quality of care varies for older adults with depression
When thinking about the well-being of older adults, most people focus on medical care, but mental health care is a growing, pressing concern for older adults and their families. “At least one in five older adults suffer from a mental disorder and experts in geriatric mental health anticipate an ‘unprecedented explosion’ of older adults with disabling mental disorder,” says Enola K. Proctor, Ph.D., mental health care expert and professor of social work at Washington University in St. Louis. “While older adults may receive adequate medical and psychiatric care, they rarely receive the care necessary to deal with the general ‘problems with living,’ or social stresses. These psychosocial problems, such as isolation and family stress, may exacerbate psychiatric problems, depression in particular, and contribute to functional decline.”
Researchers find new learning strategy
In the Thoroughman laboratory, volunteers play games on a computer screeen using a robotic arm so that Thoroughman and his colleagues can study how people learn motor skills.Central to being human is the ability to adapt: We learn from our mistakes. Previous theories of learning have assumed that the size of learning naturally scales with the size of the mistake. But now biomedical engineers at Washington University in St. Louis have shown that people can use alternative strategies: Learning does not necessarily scale proportionally with error.
Researcher gives hard thoughts on soft inheritance
Richards has observed the inheritance of epigenetic factors in plants.Eric Richards, Ph.D., professor of biology at Washington University in St. Louis, writing in the May issue of Nature Reviews Genetics, analyzes recent and past research in epigenetics and the history of evolution and proposes that epigenetics should be considered a form of soft inheritance, citing examples in both the plant and mammalian kingdoms.
August 2006 Radio Service
Listed below are this month’s featured news stories.
• ADHD kids not receiving treatment (week of Aug. 2)
• How tumors cloak themselves (week of Aug. 9)
• New info about macular degeneration (week of Aug. 16)
• Why steroids weaken bones (week of Aug. 23)
• The brain’s ‘cold sheild’ (week of Aug. 30)
Unanue named Paul and Ellen Lacy Professor of Pathology
UnanueEmil R. Unanue, has been named the Paul and Ellen Lacy Professor of Pathology at the School of Medicine. The appointment was announced by Skip Virgin, the Edward Mallinckrodt Professor and head of Pathology and Immunology at the School of Medicine.
Keep the baby, toss the bathwater: How kidneys retain proteins, discard waste
New research may finally settle a decades-old debate about how the kidney keeps valuable blood proteins from harmfully slipping into the urine, a serious health symptom that often precedes kidney failure. WUSM scientists discovered that a structure, known as the glomerular basement membrane, plays a key role in the process.
A shot at conception: New therapy reduces number of fertility injections
A woman trying to conceive a child may receive as many as 1,000 fertility-enhancing injections per year, but a recent discovery at the School of Medicine may help reduce the required number of fertility shots to about one per week.
Nanotechnology enables low-dose treatment of atherosclerotic plaques
These before (left) and after images show the effects of fumagillin-laden nanoparticles in a rabbit aorta.In laboratory tests, one very low dose of a drug was enough to show an effect on notoriously tenacious artery-clogging plaques. But it wasn’t so much the drug itself as how it was delivered. Fumagillin — a drug that can inhibit the growth of new blood vessels that feed atherosclerotic plaques — was sent directly to the base of plaques by microscopically small spheres called nanoparticles.
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