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Science News for November 5, 2003


New findings help predict soil production and erosion

New study by Benjamin Burke and Arjun Heimsath predicts future soil production and erosion in similar landscapes, supporting previous research on chemical weathering's role. The researchers studied three sites in Australia and California, finding variability in chemical and physical weathering processes across small areas.

Study: growth hormone-deficient young adults need larger replacement doses than older adults

Researchers found that younger adults with growth hormone deficiency require higher doses of the hormone to maintain healthy bones and reduce the risk of heart disease. The study's findings could change clinical practice in the US and abroad, suggesting that treatment should be restarted at a lower dose for older adults.

SourceUniversity of North Carolina at Chapel Hill·JournalThe Journal of Clinical Endocrinology & Metabolism·DateNov 5, 2003