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Science News Archive 2009 - Page 277


Page 277 of 277

The importance of early childhood monitoring

A federal Commissioner of Children would promote and defend children's needs by bringing together measurement systems across the country. Universal access to high-quality early childhood programs is crucial for young children's potential, according to a recent article in the Canadian Medical Association Journal.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 5, 2009

Doubts make consumers more willing to re-evaluate brands, study finds

A study by Sharon Shavitt found that consumers are more open to new marketing messages if they feel a sense of difficulty when thinking about brands. This can lead to a more favorable view of the brand. Consumers with the greatest need for closure were most likely to reevaluate brands after facing difficulties.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Marketing Research·DateJan 5, 2009

Ophthalmology highlights January 2009

Researchers found that vascular endothelial growth factor (VEGF) and intercellular adhesion molecule (ICAM)-1 are key players in the development of diabetic macular edema (DME), a serious complication of retinopathy. The study suggests that intravitreal injection of steroids like triamcinolone acetonide may be useful in treating DME.

SourceAmerican Academy of Ophthalmology·JournalOphthalmology·DateJan 5, 2009

Childhood trauma associated with chronic fatigue syndrome

Individuals with childhood trauma are six times more likely to develop chronic fatigue syndrome as adults, according to a recent study. Childhood trauma is also associated with neuroendocrine dysfunction and decreased cortisol levels, suggesting a biological pathway that influences adult vulnerability to illness.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateJan 5, 2009

Study: Can nature's leading indicators presage environmental disaster?

Researchers found that key ecological threats can be detected in advance, allowing for swift policy change. Monitoring and analysis of ecosystem data are crucial to preventing regime shifts and averting ecological harm. The study's findings offer a new approach to predicting environmental disaster and informing conservation efforts.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateJan 5, 2009

Describing soils: Calibration tool for teaching soil rupture resistance

A new calibration tool has been developed to help students and soil scientists accurately measure rupture resistance, a key factor in determining soil strength. The tool consists of four pressure calibration assemblies with varying pressures, allowing users to calibrate their thumb and forefinger for precise measurement.

SourceSoil Science Society of America·JournalJournal of Natural Resources and Life Sciences Education·DateJan 5, 2009

Evolution in action: Our antibodies take 'evolutionary leaps' to fight microbes

Scientists have discovered a new mechanism by which the human immune system adapts to infections, involving 'cluster mutations' in antibody genes. This discovery fills a significant gap in our understanding of how we survive microbial invasions and may lead to new ways to prevent illnesses or make them less dangerous.

Removing user fees does not improve health outcomes in Ghana

A new study published in PLoS Medicine found that removing user fees for primary health care changed health utilization behavior but did not improve health outcomes among children under 5 years old in Ghana. The study's findings challenge the assumption that free healthcare leads to better health outcomes.

SourcePLOS·JournalPLOS Medicine·DateJan 5, 2009

Uncultured bacteria found in amniotic fluids of women who experience preterm births

A study published in the Journal of Clinical Microbiology found that 60% of bacteria present in women with intra-amniotic inflammations were missed by traditional culture testing. The researchers identified a comprehensive list of microbial species using new DNA methods, including harmful bacteria not previously linked to preterm birth.

SourceCase Western Reserve University·JournalJournal of Clinical Microbiology·DateJan 5, 2009

MIT develops new way to fuse cells

Researchers at MIT have created a highly efficient method for pairing and fusing cells, which should facilitate the study of genetic reprogramming in hybrids. This innovation, led by Joel Voldman and Rudolf Jaenisch, improves upon existing cell fusion techniques by increasing the success rate to around 50%.

SourceMassachusetts Institute of Technology·JournalNature Methods·DateJan 4, 2009

AGU journal highlights -- Dec. 31, 2008

Scientists analyzed East/Japan Sea CO2 uptake, finding a surprising drop in recent years. Simulations also suggest large raindrops favor tornado formation. Remotely sensed dune celerity revealed the world's fastest moving dunes, while Martian craters indicate hidden ice deposits.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJan 2, 2009

Dormant cancer cells rely on cellular self-cannibalization to survive

Researchers at the University of Texas M. D. Anderson Cancer Center discovered that a tumor-suppressing gene called ARHI acts as a switch for autophagy in ovarian cancer cells, allowing dormant cells to survive by avoiding starvation. Blocking this autophagic pathway could provide a novel strategy for eliminating dormant ovarian cancer...

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJournal of Clinical Investigation·DateJan 2, 2009

Genetic variation may lead to early cardiovascular disease

Researchers at Duke University Medical Center have found a genetic variation in the neuropeptide Y gene that increases susceptibility to early coronary artery disease. The study found six related variations in the gene associated with transmission from generation to generation and association across a population of patients.

SourcePLOS·JournalPLOS Genetics·DateJan 2, 2009

Oral health: Prevention is key

The Lancet's Editorial emphasizes the importance of oral health prevention in reducing dental decay and its consequences. Daily use of fluoride is identified as a cost-effective approach to prevent tooth decay, especially in low- and middle-income countries where access to dentists is limited.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJan 1, 2009