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Science News Archive 2003 - Page 74


Page 74 of 108

JCI Table of Contents, May 1, 2003

Researchers have successfully used syngeneic hematopoietic stem cell transplantation to prevent autoimmune diabetes in mice, providing a promising new approach for treating genetic disorders. This breakthrough is made possible by the discovery of natural gene therapy mechanisms that can reverse mutations causing rare inherited diseases...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMay 1, 2003

Anthrax: 'A soil bug gone bad'

Researchers have deciphered the genome of Bacillus anthracis, a deadly soil bacterium that has been weaponized as a biowarfare agent. The analysis reveals that the bacterium's virulence is linked to specific genes and plasmids that enable it to thrive in environments rich in protein.

Earthquake testing lab for nation's lifelines

The Cornell laboratory will be a national center for calculating earthquake effects on structures, including soil deformation and seismic damage. The facility will use customized testing structures and actuators to apply displacements and loads, enabling researchers to study the behavior of structures during earthquakes.

Butterflies are flashers to attract mates

Research found that male butterflies of iridescent genus Heliconius are attracted to female wings displaying polarized light, suggesting a new role for polarization in mate attraction. The study also highlights the importance of polarization in maintaining species diversity among tropical butterflies.

SourceDuke University·JournalNature·DateApr 30, 2003

No sweat!

The Office of Naval Research has developed a chest-mounted air-conditioning system that can cool an aviator's body by up to 10 degrees Centigrade. The system uses zeolite to absorb heat and is designed to be lightweight, compact, and independent of aircraft power.

GenoMyc binding

Researchers have identified Myc binding sites using different experimental approaches in Drosophila and human cells. The findings suggest that Myc regulates a large portion of both the fly and human genome, altering previous views on its activity and interactions.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateApr 29, 2003

African-Americans willing to shoulder higher cigarette taxes

According to a Penn State study, African-Americans are more likely to support higher cigarette taxes, particularly among younger Blacks, those at higher educational levels, and former smokers. The study found that increasing taxes can decrease smoking prevalence rates and generate revenue for tobacco cessation programs.

SourcePenn State·JournalAmerican Journal of Public Health·DateApr 29, 2003