Science News for January 21, 1998

Disability Among Elderly Not Always A One-Way Street: Nearly One Third Regain Independence In Activities Of Daily Living

A recent study by Yale University School of Medicine researchers found that nearly 30% of people over 72 years old regained their ability to perform essential activities of daily living. The strongest predictor of recovery was age, with participants aged 85 or younger being more likely to regain independent ADL function.

SourceYale University School of Medicine·JournalJournal of General Internal Medicine·DateJan 21, 1998

'Rolling Circles' Provide New Way to Amplify and Detect DNA

A new DNA production method dubbed 'rolling circles' has been developed by University of Rochester chemist Eric Kool, allowing for easy and inexpensive production of large quantities of DNA. This technique uses circular DNA strands that can be replicated exponentially without the need for expensive enzymes or complex equipment.

SourceUniversity of Rochester·DateJan 21, 1998

Things That Go Bump In The Night - NASA Team Finds That Pulsars Get Wound Up - And Down

Researchers found that accreting pulsars exhibit strange behavior, including gaining and losing time, due to mass transfer from stellar companions. This phenomenon is caused by the negative torque experienced by the pulsar, which affects its spin rate.

SourceNASA/Marshall Space Flight Center--Space Sciences Laboratory·JournalThe Astrophysical Journal Supplement Series·DateJan 21, 1998

Bible Story May Include First Report Of Anorexia

Researchers link biblical story of Hannah to first documented case of anorexia nervosa and its associated infertility. The article, published in Fertility and Sterility, suggests that extreme weight loss may have contributed to Hannah's inability to conceive.

SourceMassachusetts General Hospital·JournalFertility and Sterility·DateJan 21, 1998

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Businesses Don't Capitalize On Information Advances, Journal Concludes

A recent journal issue concludes that businesses are failing to leverage emerging computer/communications technology for profits. The study highlights the need for commensurate changes in management practices to unlock economic value from technological advancements.

SourceInstitute for Operations Research and the Management Sciences·JournalManagement Science·DateJan 21, 1998