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Science News Archive August 2011 - Page 6


Page 6 of 27

Child-care facilities can do more to promote healthy eating and physical activity among preschoolers

A comprehensive review of research literature highlights the need for child-care facilities to support healthy eating habits and regular physical activity. The study suggests that significant improvements in these behaviors depend on combined strength of interventions and supportive policy changes.

SourceElsevier Health Sciences·JournalJournal of the American Dietetic Association·DateAug 26, 2011

Yale researchers use genetic code to engineer a living protein

Researchers at Yale University have successfully re-engineered the genetic code of bacteria to synthesize special forms of proteins that can mimic natural or disease states. This new technology enables the production of human proteins with their naturally occurring phosphorylation sites, a crucial step in understanding disease processes.

SourceYale University·JournalScience·DateAug 25, 2011

New sensors streamline detection of estrogenic compounds

Researchers have engineered new sensors that can detect estrogenic compounds in human cells, which is crucial for understanding the potential health risks associated with these substances. The sensors, developed by a team led by Huimin Zhao, were found to reliably detect estrogenic compounds within hours, even at low levels.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalBiotechnology and Bioengineering·DateAug 25, 2011

4 decades of the rising obesity epidemic

The global obesity epidemic has grown over four decades, with high-income countries experiencing a rise in the 1970s and 80s. Low-income and middle-income countries are now also affected, particularly women from wealthy urban environments. The authors argue that policy-led solutions, such as government regulations and healthy public se...

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 25, 2011

Making tomorrow's bioenergy yeasts strong

USDA scientists have developed a new biorefinery yeast that can ferment plant sugars into cellulosic ethanol despite the presence of toxic compounds. The yeast, Saccharomyces cerevisiae strain NRRL Y-50049, has shown remarkable tolerance to furfural and HMF, two compounds that inhibit yeast growth and reduce ethanol yields.

SourceUnited States Department of Agriculture - Research, Education and Economics·JournalApplied Microbiology and Biotechnology·DateAug 25, 2011

Workplace stress a growing health hazard

A study by Concordia University economists found that workers in high-stress jobs visit doctors more often, with a 26% increase in healthcare utilization. The study also estimated that workplace stress costs US companies $68 billion annually and reduces productivity by 10%.

SourceConcordia University·JournalBMC Public Health·DateAug 25, 2011

Could a tumor suppressor also fight obesity?

Scientists at Thomas Jefferson University found that silencing the hormone receptor GCC affects appetite in mice, inducing obesity, while mice expressing the receptor know when to stop eating. This new neural-gut axis provides a potential therapeutic target for controlling appetite and obesity.

SourceThomas Jefferson University·JournalJournal of Clinical Investigation·DateAug 25, 2011

A planet made of diamond

Astronomers have detected a planet orbiting a rapidly spinning pulsar, dubbed PSR J1719-1438. The discovery suggests that the planet is composed primarily of carbon and oxygen, likely forming a diamond-like material due to its high density.

SourceUniversity of Manchester·JournalScience·DateAug 25, 2011

A more realistic and accurate weight loss predictive model: 100 calories fewer per day would see weight loss of around 10 pounds over 3 years

A new web-based bodyweight simulation model simulates physiological differences between people based on sex, age, height, and weight. It provides a rough dieting rule for typical overweight adults: every 10 calories per day reduction in energy intake results in about 1 pound of weight loss over 3 years.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 25, 2011