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Science News Archive February 2007 - Page 6


Page 6 of 16

Scientists warn of climate change risk to marine turtles

Rising temperatures could lead to extreme infant mortality and declines in nesting beaches across the USA, according to a study analyzing 26 years of loggerhead turtle nesting and climate data. Conservation efforts are recommended for protecting northern breeding grounds, as male turtles are essential for population sustainability.

SourceUniversity of Exeter·JournalGlobal Change Biology·DateFeb 19, 2007

Plant-derived omega-3s may aid in bone health

A team of Penn State researchers found that plant-derived omega-3 polyunsaturated fatty acids (PUFA) may have a protective effect on bone health. The study, which included a controlled diet with three diets high in PUFA, showed significant decreases in biomarkers of bone resorption.

SourcePenn State·JournalNutrition Journal·DateFeb 19, 2007

Psychiatric and neurologic conditions may underlie many cases of chronic dizziness

A study of 345 patients found that chronic dizziness was often caused by underlying psychiatric or neurologic conditions, with anxiety disorders accounting for 60% of cases. The research suggests that careful inquiry about key symptoms during evaluations can lead to more accurate diagnoses and targeted treatment recommendations.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateFeb 19, 2007

Sense and sensibility in short-term memory

A novel Brandeis University study confirms that sight and sound use similar neural mechanisms for encoding and retrieving short-term memories from both senses. The study found that the errors made in memory for sounds are the same types of errors made in memory for sight, suggesting a common brain process.

SourceBrandeis University·JournalPLOS Biology·DateFeb 19, 2007

Universe offers 'eternal feast,' cosmologist says

According to physicist Andrei Linde, recent developments in cosmology have changed our understanding of the structure and fate of the universe. Inflationary theory suggests that our universe could emerge from as little as a milligram of matter or even nothing, with quantum fluctuations creating galaxies along the way.