Archive: 12/03/2008

New 'control knobs' for stem cells identified

Natural changes in voltage that occur across the membrane of adult human stem cells are a powerful controlling factor in the process by which these stem cells differentiate, according to research published by Tufts University ...

dateDec 03, 2008 in
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Some 70 percent of schoolchildren don't walk to school

Days when schoolchildren walked to neighbourhood schools are long gone. A new study by a team of researchers led by Paul Lewis, a professor of Urban Planning at the Université de Montréal, shows that only 30 percent of ...

dateDec 03, 2008 in Health
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3-D laser scanning: A new soil quality measurement

Soil researchers pay close attention to bulk density, as it is one of the most common soil measurements and it is often used as a measure of soil quality. A soil's bulk density can be indicative of the ease of root penetration, ...

dateDec 03, 2008 in Environment
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Stereotypes, bias and personnel decisions

In an article in the December issue of the journal Industrial and Organizational Psychology, Frank J. Landy questions research that is said to demonstrate that stereotypes about social groups bias personnel decisions. He arg ...

dateDec 03, 2008 in Other
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Understanding the daily variation

For over two centuries, meteorologists were puzzled by the observation that atmospheric pressure in the tropics peaks at 10 a.m. and 10 p.m. nearly every day. In the late 1960s, a theory was proposed that ...

dateDec 03, 2008 in Earth Sciences
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