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Science News Archive October 2006 - Page 6


Page 6 of 17

Social medicine in the 21st century

A unique study published in PLoS Medicine found significant differences in street-based drug use patterns between African American and white men, with implications for tailored interventions. The research highlights the importance of understanding cultural backgrounds and motivations to improve patient access and adherence to care.

SourcePLOS·JournalPLOS Medicine·DateOct 23, 2006

Mineral discovery explains Mars' landscape

A Queen's University researcher has discovered a mineral that could explain the mountainous landscape of Mars, suggesting the planet was likely wetter in the past. The study reveals layering in rocks indicative of sediment manipulated by water, which would require significant water on the planet at some point.

SourceQueen's University·JournalGeology·DateOct 23, 2006

Gulf bay double whammy: Rising seas, dammed rivers

New research reveals that every US Gulf Coast bay in Texas and Louisiana is at risk of significant flooding and expansion within the coming century. The bays' delicate balance between river-borne sediments and rising sea levels will be disrupted by the construction of dams, leading to rapid flooding events with devastating consequences.

Polycystic ovary syndrome more prevalent in overweight women

Researchers report that polycystic ovary syndrome is significantly higher among overweight and obese Spanish women compared to lean women. The study, which evaluated 113 consecutive patients, found a marked increase in the prevalence of polycystic ovary syndrome among unselected overweight and obese women.

SourceJAMA Network·JournalArchives of Internal Medicine·DateOct 23, 2006

A little of what you fancy does you no good

Researchers found that high-fitness parents led to lower reproductive success for their offspring, particularly sons and daughters. This challenged the theory that females benefit from passing on good genes through sons.

SourcePLOS·JournalPLOS Biology·DateOct 23, 2006

Geological feature key to finding, protecting tombs

Researchers have identified a connection between fracture traces and rock-cut tombs in Egyptian valleys, which may aid in locating and protecting previously undiscovered tombs. The discovery also offers insights into preserving the tombs from water damage, ensuring their preservation for future generations.

Researchers share $900,000 in funding

Seventeen Australian researchers have been awarded funding from Pfizer Australia to conduct studies on various aspects of cardiovascular medical research. The grants, worth over $900,000, are seen as a stepping stone for researchers and will be recognized at the Sydney Hilton Hotel on October 21.

People living in highly black concentrated neighborhoods more likely to report their health as poor

Researchers at Columbia University's Mailman School of Public Health found that individuals living in high Black concentrated neighborhoods were twice as likely to report poor health compared to those in low concentration areas. This association persisted even after adjusting for socioeconomic factors.

Ethnic identity gives teens daily happiness boost

A new study by Wake Forest University psychologist Lisa Kiang suggests that positive feelings toward one's ethnic group can provide an extra boost of positivity in individuals' daily lives. Adolescents with higher ethnic regard rated their daily happiness levels higher than those with lower ethnic regard.

SourceWake Forest University·JournalChild Development·DateOct 20, 2006

Mass extinction's cause: 'Sick Earth'

Research led by USC earth scientist David Bottjer suggests the Earth's environmental stressors led to mass extinction, contradicting meteorite strike theory. The study proposes a warming Earth and reduced ocean circulation as key factors in creating an environment where toxic hydrogen sulfide dominated, leading to species disappearances.

Researchers reveal mystery of bacterial magnetism

Researchers discovered that magnetotaxis, a phenomenon where bacteria align like tiny swimming compass needles, helps them detect lower oxygen concentrations more efficiently. This subtle advantage allows the bacteria to thrive in environments with limited oxygen, making their magnetic properties beneficial in nature.

SourceNaval Research Laboratory·JournalBiophysical Journal·DateOct 20, 2006

Asia's odd-ball antelope gets collared

The Wildlife Conservation Society has fitted GPS collars on eight saiga antelopes in the Mongolian Gobi Desert, aiming to better understand their movements and develop a comprehensive conservation strategy. The saiga numbers have plummeted by 95% due to poaching for Chinese medicines and competition with livestock.