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Science News for July 7, 1999


Lowering 'bad' cholesterol as good or better than angioplasty for mild coronary artery disease

The study found that aggressively lowering 'bad' cholesterol with atorvastatin reduced ischemic events by 36% compared to balloon angioplasty, delaying cardiac events in patients with stable coronary artery disease. Researchers concluded that this therapy is a safe and effective initial strategy for reducing ischemic events.

SourceEmory University Health Sciences Center·JournalNew England Journal of Medicine·DateJul 7, 1999

Mentored foster children learn to trust others, researchers find

Researchers found that foster children who receive mentors experience improvements in their peer relationships and develop trust. The study, published in the Journal of Research on Adolescence, sheds light on how mentoring works for foster youth. Preliminary findings suggest that longer-term mentoring relationships yield better outcomes.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Research on Adolescence·DateJul 7, 1999

Very thin polymer films still have the same stuff

A team of scientists discovered that polymer molecules in ultra-thin films of 14 nanometers retain their shape and size comparable to their bulk counterparts. This finding challenges previous simulations, which suggested minimal changes in molecular structure with decreasing film thickness.

SourcePenn State·JournalNature·DateJul 7, 1999

Simulation uses quantum mechanics to understand nanoelectronics

Researchers at the University of Illinois developed a computer simulation to understand nanoelectronics, a field where single electrons control devices. The simulation explores the interplay between quantum mechanics and matter's granularity, enabling scientists to design and optimize next-generation nanoscale electronic devices.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalIEEE Electron Device Letters·DateJul 7, 1999

Sahara's abrupt desertification started by changes in Earth's orbit, accelerated by atmospheric and vegetation feedbacks

German scientists used a climate model to conclude that the Sahara's desertification began abruptly 5,440 years ago due to subtle changes in Earth's orbit. The resulting desertification had significant impacts on ancient civilizations, with some of the most severe changes occurring between 4,000 and 3,600 years ago.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJul 7, 1999

Study suggests need for better pain management in newborns

Researchers found that premature infants respond to pain and can differentiate between more and less painful procedures. They recommend universal pain management in newborns to mitigate the effects of early procedural pain. Premature babies, even those born very prematurely, become more responsive to pain with age.

SourceWashU Medicine·JournalPEDIATRICS·DateJul 7, 1999

Researchers discover treatment that delays onset of insulin-dependent diabetes

Researchers at the University of Utah have discovered a naturally-occurring antibody that significantly reduces diabetic symptoms in mice. The study's findings suggest that masking the foreign nature of affected cells may prevent immunological processes that cause diabetes. Eighty percent of treated mice did not develop diabetic symptoms.

SourceAmerican Association of Pharmaceutical Scientists·JournalPharmaceutical Research·DateJul 7, 1999