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Science News Archive 2009 - Page 178


Page 178 of 277

Home-based diet and exercise intervention can improve physical function in older cancer survivors

A home-based program aimed at improving exercise and diet can lead to significant improvements in physical function among older long-term cancer survivors. The study found that the intervention group had higher levels of physical function compared to the control arm, with declines in functional decline of almost five points versus slig...

Predators ignore peculiar prey

Researchers found that birds target salamanders with dominant traits more frequently, even when the ratio of these traits changes. This suggests that predators prioritize common prey forms, allowing unusual traits to persist.

SourceBMC (BioMed Central)·JournalBMC Ecology·DateMay 12, 2009

Enriched environment improves wound healing in rats

Researchers found that giving rats living in isolation the opportunity to build nests led to faster and more complete healing of burn injuries than isolation-reared rats without nest-building materials. This effect was associated with altered gene expression in stress-associated brain structures.

SourcePLOS·JournalPLOS ONE·DateMay 12, 2009

Participants in antidepressant drug trials are atypical patients, UT Southwestern researchers report

Researchers found that only 22% of participants met trial criteria, had shorter bouts of depression, quicker response to medication, and fewer side effects compared to excluded patients. The study suggests that antidepressants should not be seen as a panacea and calls for more research on treatment-resistant depression patients.

SourceUT Southwestern Medical Center·JournalAmerican Journal of Psychiatry·DateMay 12, 2009

Women with previous abnormal cervical cells at higher risk for recurrence and invasive cancer

A large population-based study found that women who have been treated for abnormal cervical cell growth are at higher risk for a recurrence of the disease or invasive cervical cancer. The study's findings should help guide physicians in making recommendations about follow-up treatment guidelines.

SourceUniversity of California - Davis Health·JournalJNCI Journal of the National Cancer Institute·DateMay 12, 2009

Study outlines how to succeed with refillable packaging

A new study outlines essential elements for successful refillable packaging, including affordability without sacrificing quality. Consumer surveys revealed that environmentally-friendly concerns drive usage, while businesses see it as a way to demonstrate responsibility and reduce costs.

SourceWiley·JournalPackaging Technology and Science·DateMay 12, 2009

22-year study finds adults aren't active enough

A 22-year longitudinal study found that nearly 56% of Canadian adults are consistently inactive, with only 12% remaining active in each subsequent survey. Socio-economic factors, such as education and income level, significantly influence physical activity levels among participants.

SourceUniversity of Montreal·JournalInternational Journal of Behavioral Nutrition and Physical Activity·DateMay 12, 2009

Now or later? Consumer product evaluation depends on purchase timing

A new study finds that consumers evaluate products differently based on the timing of their purchase. When considering future use, desirability is a primary factor, while feasibility takes precedence for immediate use. Reevaluating a product later can also influence judgments, with future-considered products being viewed more favorably.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateMay 12, 2009

Ben-Gurion U of the Negev study demonstrates link between appetite and elderly mortality

A recent study by Ben-Gurion University of the Negev reveals a strong link between daily activity energy expenditure and appetite in elderly adults. Participants who reported improved appetite were found to have lower mortality rates, suggesting that subjective appetite measurement can be an important predictor of death.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalThe journal of nutrition health & aging·DateMay 12, 2009

'Beating' heart machine expedites research and development of new surgical tools, techniques

A North Carolina State University-developed machine allows researchers to test and refine technologies in a realistic surgical environment, saving time and money. The 'dynamic heart system' enables researchers to conduct 'proof of concept' evaluations before testing on live animals, making the development process more efficient.

SourceNorth Carolina State University·JournalAnnals of Biomedical Engineering·DateMay 12, 2009

Biomass as a source of raw materials

Scientists develop catalytic process to convert phenolic components of bio-oil directly into cycloalkanes and methanol. The 'one-pot' reaction uses palladium metal on a carbon support and phosphoric acid as a proton source.

SourceWiley·DateMay 12, 2009

Pandemic warning system keys on 'human factors'

Researchers propose a new system to warn of impending pandemics by monitoring subtle signals in human behavior, such as increased flu-related medication purchases. This approach aims to overcome the traditional challenge of knowing when events leading to pandemics begin, allowing for proactive measures to be taken.