Archive for January 27th, 2009

Smallest ever quantum dots bring real world applications closer

Single atom quantum dots created by researchers at Canada’s National Institute for Nanotechnology and the University of Alberta make possible a new level of control over individual electrons, a development that suddenly brings quantum dot-based devices within reach. Composed of a single atom of silicon and measuring less than one nanometer in diameter, these are the smallest quantum dots ever created.

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Tuesday, January 27th, 2009

Nuclear fusion-fission hybrid could contribute to carbon-free energy future

Physicists at the University of Texas at Austin have designed a new system that, when fully developed, would use fusion to eliminate most of the transuranic waste produced by nuclear power plants, making nuclear power a more viable alternative to carbon-based energy sources.

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Tuesday, January 27th, 2009

Biofeedback from the zoo

Tel Aviv University research discovers how to treat OCD by observing bears, gazelles and rats.

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Tuesday, January 27th, 2009

Dog owners more likely to share germs with pets by not washing hands than by …

Dog owners who sleep with their pet or permit licks on the face are in good company. Surveys show that more than half of owners bond with their pets in these ways. Research done by a veterinarian at Kansas State University found that these dog owners are no more likely to share the same strains of E. coli bacteria with their pets than are other dog owners.

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Tuesday, January 27th, 2009

Assessing the real risk of heart disease in young people with low short-term …

Risk stratification has become central to strategies for the prevention of coronary heart disease. However, stratification using the conventional risk estimation models may not be accurately achieved in individuals without symptoms. A new study reported online by Circulation suggests that many younger individuals defined as low risk by conventional risk stratification methods may not remain at low risk throughout their lives.

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Tuesday, January 27th, 2009

Researchers iron out new role for serotonin

Vanderbilt University Medical Center investigators have found a surprising link between brain iron levels and serotonin, a neurotransmitter involved in neuropsychiatric conditions ranging from autism to major depression. Appearing in the Proceedings of the National Academy of Sciences this week, the study by Randy Blakely, Ph.D., and colleagues also demonstrates the utility of a powerful in silico approach for discovering novel traits linked to subtle genetic variation.

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Tuesday, January 27th, 2009

Repeat pregnancies among teenagers on the increase

An expert in health services at the University of Nottingham is calling for urgent action to improve contraceptive advice and services to reduce the growing number of repeat teenage pregnancies in the United Kingdom.

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Tuesday, January 27th, 2009

Easing regulations does not mean lower quality of cardiac care

States that dropped regulations overseeing the performance of two common heart procedures showed no increase in death rates, according to researchers at Baylor College of Medicine, Rice University and Duke University Medical Center. The findings are available online in the journal Health Services Research.

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Tuesday, January 27th, 2009

New generation of orthopedic, dental and cardiovascular prostheses

A multidisciplinary team of scientists led by the Universite de Montreal has discovered a process to produce new metal surfaces that promise to lead to superior medical implants that will improve healing and allow the human body to better accept metal prostheses.

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Tuesday, January 27th, 2009

Magnetic-anchor-guided endoscopic submucosal dissection shows promise for gas…

A prospective clinical trial from researchers in Japan shows magnetic-anchor-guided endoscopic submucosal dissection for large early gastric cancer to be a feasible and safe method in humans. Endoscopic submucosal dissection is useful in the en bloc removal of large gastric lesions because it reduces the risk of a local recurrence caused by removing the lesions piecemeal. The magnetic-anchor-guided endoscopic submucosal dissection technique was developed to facilitate the standard ESD procedure.

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Tuesday, January 27th, 2009