Researchers Study How Sediment Basins Stop Silt
Researchers developed a new sediment basin design that reduces silt removal by using a skimmer system. The system removed 37 pounds of soil during simulated events, outperforming other methods tested.
Science News for August 28, 1996
Genetic Alterations Linked To Cancer In Some Blood Samples
A recent study by Johns Hopkins Medicine detected genetic mutations specific to cancer in blood samples of six patients with head and neck cancer. The presence of DNA alterations in the blood was associated with large, advanced tumors and poor outcomes, including increased mortality rates.
Alzheimer's disease center seeks patients for new drug studies
UT Southwestern Medical Center is testing two new oral medications, propentofylline and SB202026, to alleviate major symptoms of Alzheimer's. These trials aim to improve patient conditions or slow symptom progression.
Earthquake Prediction Rests On Faulty Premise
Despite advancements in technology, reliable short-term earthquake predictions remain nearly impossible. Experts recommend redirecting funds to disaster management plans and building codes instead.
Hibernation: The Opposite of Sleep?
Arctic ground squirrels experience long periods of torpor punctuated by costly rewarming periods. Hibernation is about finding rest, not conserving energy, according to zoophysiologist Brian Barnes.
Outcomes Of Prostate Removal Assessed
A multi-institutional study found that surgery is effective for localized prostate cancer, with tumor grade being the best predictor of long-term survival. Ten years after surgery, men with grade 1 tumors had a 6% mortality rate, while those with grade 2 and 3 tumors had 20% and 23% mortality rates, respectively.
New Theory Of Sexual Orientation Could Help Resolve Nature-Nurture Debate
A Cornell psychologist suggests that a child's early preferences for sex-typical or nonconformist activities and peers may shape their future sexual orientation. Studies show that many gay men and lesbians recall being more attracted to those who were different from them in childhood.