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Science News for May 9, 2000


Sleep apnea likely to lead to hypertension

Researchers found that even mild to moderate sleep apnea significantly increases the risk of hypertension, with graver levels associated with higher likelihood. The study used data from the Wisconsin Sleep Cohort Study and found a substantial risk of hypertension in those with mild to moderate sleep apnea.

SourceUniversity of Wisconsin-Madison·JournalNew England Journal of Medicine·DateMay 9, 2000

Single-isotope silicon helps chips keep their cool

Scientists have discovered that single-isotope silicon can conduct heat more efficiently than natural silicon, with a 60% improvement in thermal conductivity at room temperature. This enhancement is attributed to the suppression of phonon scattering caused by fluctuations in atomic masses, resulting in improved heat transfer rates.

SourceMax-Planck-Gesellschaft·JournalSolid State Communications·DateMay 9, 2000

Report highlights of TRANSPLANT 2000

The meeting featured key findings on pediatric transplantation, mandatory liver sharing benefits, new tests predicting rejection, and advancements in immunosuppression. Researchers discovered a test that can predict organ rejection days or weeks before symptoms appear, reducing valuable treatment time.