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Science News Archive May 2005 - Page 3


Page 3 of 16

Cure for common cold will need to wiggle to work, scientists say

Researchers at Purdue University found that the flexible structure of WIN compounds allows them to shimmy into the proteins forming the virus' outer shell and alter them. This could potentially stop the infection process. The team believes WIN compounds may be effective in stabilizing proteins, preventing the viral trap door from opening.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·DateMay 25, 2005

The evolutionary triumph of flower power

Researchers found that flowers induce immediate and long-term positive effects on emotional reactions, mood, social behaviors, and memory in both men and women. The evolutionary emotional niche model suggests that humans' emotional connection with flowers is a key factor in their survival and diversity.

SourceRutgers University·JournalEvolutionary Psychology·DateMay 25, 2005

Children develop cynicism at an early age

Children as young as kindergarten begin to question self-interest statements, but only start endorsing biases equally plausible for incorrect statements in sixth grade. Most elementary school age children are harsher judges of others than adults and older children.

SourceYale University·JournalPsychological Science·DateMay 25, 2005

Decoding the logic of olfaction

The study found that individual odors stimulate a small subset of neurons across a large area in the cortex. Different odorants exhibit similar patterns of activation, but with partial overlaps. This suggests a complex logic to the way information is mapped onto the cortex.

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateMay 25, 2005

Corticosteroids do not help head injuries

The CRASH trial found that corticosteroids increased the risk of death at two weeks compared to a placebo. The study also showed higher risks of death or severe disability in the corticosteroid group than in the placebo group. Corticosteroids are widely used to treat head injuries, but this practice may be harmful.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 25, 2005

Prejudices evolved, says ASU study

A new study by Arizona State University researchers found that prejudices exist towards different groups of people, with distinct flavors characterized by fear, disgust, anger, and more. The study suggests that interventions to reduce inappropriate prejudices against different groups may need to be tailored accordingly.

SourceArizona State University·JournalJournal of Personality and Social Psychology·DateMay 25, 2005

Patients' favorite music during surgery lessens need for sedative

Researchers at Yale University found that playing a patient's favorite music during surgery reduces the need for sedatives. In contrast, using white noise or no headphones did not decrease sedative requirements. The study involved 36 patients at Yale-New Haven Hospital and 54 patients at the American University of Beirut Medical Center.

SourceYale University·JournalAnesthesia & Analgesia·DateMay 25, 2005

Road salt affects mitigation wetlands

Researchers monitoring two PennDOT-installed data loggers measure high salt levels in runoff wetland, reaching half the salinity of seawater. The effects on species and soil quality are still unknown but may include decreased midge populations and increased algae growth.

Combating fatigue associated with liver disease

A randomized, double-blind placebo-controlled crossover trial found that ondansetron did not have a fatigue-reduction benefit greater than the considerable placebo effect. The study suggests that other drugs targeting the central nervous system may prove effective in combating fatigue associated with primary biliary cirrhosis.

SourceWiley·JournalHepatology·DateMay 24, 2005