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Science News Archive 2004 - Page 100


Page 100 of 135

Time with patients, staff support boost flu shot rates

A study found that when doctors spend at least 10 minutes with patients, inquire about immunizations before exams, have four staff members, and hold down waiting room time, over 90% of patients are properly vaccinated. Critical path analysis revealed the full sequence of events was more powerful than individual activities.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateApr 16, 2004

Mental health symptoms common at Pentagon after 9/11

A study of Pentagon personnel found that nearly 21 percent experienced mental health symptoms, including generalized anxiety and depression, following the 9/11 attacks. The researchers also discovered that a significant portion of those at high risk for mental health problems sought counseling after the attack.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateApr 16, 2004

Following complex motions

A new study provides support for the ancient origin of the MT visual center in primates, suggesting it evolved early in primate evolution. The researchers used optical imaging to analyze the brain structure of a small nocturnal primate called the galago and found similarities with monkey brains.

SourceVanderbilt University·JournalProceedings of the National Academy of Sciences·DateApr 15, 2004

Brain areas identified that 'decode' emotions of others

Researchers have identified two specific brain areas activated when people make mental state judgments, shedding light on the neural basis of everyday theory of mind. This finding may help develop interventions for individuals with autism who struggle with social skills and mental state decoding.

SourceQueen's University·JournalJournal of Cognitive Neuroscience·DateApr 15, 2004

UCLA study shows Medicaid costs can shrink

A UCLA study found that providing Head Start parents with easy-to-understand health-care guidance can lead to significant reductions in emergency room and clinic visits, resulting in cost savings for Medicaid. The study showed a 48% reduction in unnecessary ER visits and a 37.5% decrease in clinic visits for routine illnesses.

SourceUniversity of California - Los Angeles·JournalJournal of Community Health·DateApr 15, 2004

SAGE-acious prediction of thyroid carcinoma

Researchers developed a preoperative diagnostic test that uses gene expression to distinguish between benign and malignant thyroid carcinoma. The test has the potential to improve diagnosis accuracy and treatment outcomes for patients with thyroid cancer.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 15, 2004

Gulf marine reserves given new life

The Madison/Swanson and Steamboat Lumps marine reserves in the Gulf of Mexico have been given a new life after a two-year extension. Larger fish with greater egg-producing potential were found within the protected sites than outside them, indicating the reserves are working as designed.

Physical beauty involves more than good looks

Research suggests that non-physical traits, such as personality and behavior, have a substantial impact on how people perceive physical attractiveness. Studies involving familiar and stranger participants found that non-physical traits known only to familiars had a large effect on perception of physical attractiveness.

SourceUniversity of Wisconsin-Madison·JournalEvolution and Human Behavior·DateApr 15, 2004

Phytoplankton may stimulate uptake of CO2

Phytoplankton, tiny aquatic plants that convert carbon dioxide through photosynthesis, may play a crucial role in regulating Earth's atmosphere. A new study finds that iron fertilization can enhance the uptake of CO2 by phytoplankton, potentially making them more efficient carbon sinks.

SourceOregon State University·JournalScience·DateApr 15, 2004

The brain's flashy tale

Researchers discovered that the timing of short and long bright light flashes can create optical illusions by activating two parallel pathways in the brain. These pathways adapt to changes in light, suggesting a complex network for handling perception and consciousness.

SourceSalk Institute·JournalNature·DateApr 14, 2004

Storage limits on our visual hard drive

Researchers René Marois and J. Jay Todd found that the human brain's visual short-term memory has a limited storage capacity of about four objects. This is attributed to the posterior parietal cortex, which plays a key role in holding information from visual scenes.

SourceVanderbilt University·JournalNature·DateApr 14, 2004

Lung tumor therapies improved by combining CT and PET scans

Researchers found that combining CT and PET scans significantly enhances radiologists' abilities to precisely define tumor locations for radiation treatments. This improves the efficacy of treatment and limits side effects in non-small-cell lung cancer patients. PET-CT scanning units are now available at hundreds of hospitals nationwide.