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Science News Archive 2007 - Page 62


Page 62 of 203

Nutrition model stresses positive experience of eating

A new eating model, ecSatter, suggests that managing weight and staying healthy requires a positive experience of eating. The model, developed by Ellyn Satter and Barbara Lohse, emphasizes permission and discipline to cultivate effective eating attitudes and behavior.

SourcePenn State·JournalJournal of Nutrition Education and Behavior·DateSep 18, 2007

Bats add their voice to the FOXP2 story

A new study has found that bats exhibit unparalleled genetic variation in the FOXP2 gene, which is linked to their unique ability of echolocation. This discovery adds weight to the theory that FOXP2 plays a crucial role in the sensory-motor coordination of vocalizations.

SourcePLOS·JournalPLOS ONE·DateSep 18, 2007

Muscle patterns in women may be linked to at risk positioning for ACL tears

A new study suggests that training programs promoting balanced activity of the inner and outer thigh muscles may help protect the ACL from injury. The research found that women tend to activate their outer thigh muscles more than their inner thigh muscles when preparing to land from a jump, leading to a larger valgus knee angle.

SourceUniversity of Michigan·JournalJournal of Electromyography and Kinesiology·DateSep 18, 2007

Why conservation efforts often fail

Elinor Ostrom proposes a flexible framework for resource management, considering factors such as governance systems, resource users, and innate productivity. The framework aims to improve conservation strategies by working with local people and adapting to unpredictable human behavior.

SourceIndiana University·JournalProceedings of the National Academy of Sciences·DateSep 18, 2007

A study proposes a new universal rule to explain the equilibrium of plant populations

A new study proposes a universal rule to explain the equilibrium of plant populations, identifying phytoplankton as the shortest-lived species and trees that can live for centuries. The research suggests that plant mortality is highly temperature-sensitive, with potential increases of 40% in land temperatures above 4ºC.

SourceFundación BBVA·JournalProceedings of the National Academy of Sciences·DateSep 18, 2007

Metagenomics of the deep Mediterranean

A recent study using metagenomics reveals a surprising high number of quorum sensing genes in the deep Mediterranean, indicating microbes associate with detritus particles. These bacteria have been found to be luminescent, possibly to attract prey in the food-scarce environment.

SourcePLOS·JournalPLOS ONE·DateSep 18, 2007

Smoking can harm the long-term effects of some oral surgery procedures

A recent study published in the Journal of Periodontology found that smokers experience greater residual gum recession after periodontal plastic surgery. The two-year study showed smokers had less desirable long-term outcomes compared to non-smokers. Quitting smoking before oral surgery can improve treatment success, according to experts.

SourceAmerican Academy of Periodontology·JournalJournal of Periodontology·DateSep 18, 2007

Story tips for journalists

The RT3 accelerometer measures walking intensity, providing an accurate alternative to traditional questionnaires. Researchers found that only 15% of Americans meet the recommended physical activity level, with people with disabilities getting even less.

SourceJournal of Rehabilitation Research·JournalThe Journal of Rehabilitation Research and Development·DateSep 18, 2007

Species still have more viable offspring if they can choose their best mate

A new study by the University of Georgia shows that when animals cannot choose their preferred mate, females and males find ways to compensate, increasing the chances of their offspring's survival. This supports the Compensation Hypothesis, which suggests individuals can pass on genes even under less-than-ideal circumstances.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateSep 18, 2007

Chronic infection persists by targeting stromal cell network in lymphoid organs

A recent study found that chronic viral infections can persist by targeting fibroblastic reticular cells (FRC) in lymphoid organs, disrupting the function of these cells. The researchers discovered a potential link between this mechanism and the PD-1 pathway, which may inhibit immune responses to chronic infections.

SourceEmory Health Sciences·JournalProceedings of the National Academy of Sciences·DateSep 18, 2007

Eating competence may lower risk of heart disease

A study by Penn State found that individuals with higher eating competence have a lower risk of cardiovascular disease. The research suggests that training people in becoming eating competent may be an effective way to encourage healthy eating behaviors.

SourcePenn State·JournalJournal of Nutrition Education and Behavior·DateSep 18, 2007