African Women Working Can Hurt Children's Health
New research from Cornell University suggests that African women working outside the home may face
Science News for September 29, 1997
Scientists Develop Powerful Tool For Studying TB
Researchers have created an efficient method to study Mycobacterium tuberculosis (TB) using transposon mutagenesis, allowing them to examine the effect of individual gene mutations on the bacteria's ability to grow or cause disease. This breakthrough enables the development of new drug targets and potential vaccine candidates.
SourceNIH/National Institute of Allergy and Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateSep 29, 1997
Environmental Engineers Demonstrate Effective Method For Trapping Highway Pollutants
Researchers at the University of Cincinnati have developed a modified filtration system that effectively traps heavy metals and improves water quality. The partial exfiltration trench (PET) system shows trapping efficiencies ranging from 82 to 97 percent, even in heavy rainstorms.
Study: Hydrogen Bonds Aren't Key To DNA Pairing After All
Researchers found that growing strands of DNA can accurately incorporate a nucleotide that closely resembles thymine but lacks hydrogen bonding ability. This finding suggests that the distinctive shapes and sizes of DNA bases may underpin the impressive 99.99-percent accuracy of DNA replication.
SourceUniversity of Rochester·JournalProceedings of the National Academy of Sciences·DateSep 29, 1997
New Discovery May Offer Protection Against Stroke
A new study suggests that inhibiting poly(ADP-ribose) polymerase (PARP) enzyme may protect nerve cells from energy loss and prevent irreversible damage after a stroke. The research, published in Nature Medicine, found that genetically modified mice without the PARP gene experienced reduced brain damage compared to unaltered mice.
Notre Dame Paleontologist Finds Damage Done To T. rex Skull
University of Notre Dame paleontologist J. Keith Rigby discovered the largest Tyrannosaur skeleton on record, but it was found to be seriously damaged by poachers on a northeastern Montana cattle ranch. The damage includes two-thirds of the left side of the skull missing and both lower jaws also destroyed.
New Book Reviews The Evolution Of Home Economics
A new book reviews the evolution of home economics, examining its influence on women's options and careers. The book brings together perspectives from historians, educators, and economists to provide a comprehensive understanding of home economics' development.
Novel Death-Receptor Gene Identified: KILLER/DR5 Triggers Cancer Cell Death After Chemotherapy Or Radiation
Researchers at the University of Pennsylvania School of Medicine have identified a novel death-receptor gene called KILLER/DR5 that responds to chemotherapy and radiation by killing cancer cells. The discovery provides new insights into how cancer cells are killed after treatment, with potential implications for improving cancer therapy.