Add BrightSurf on Google Email

Science News for March 30, 1998


Insect Taste Buds Target Of Control Method

Researchers at Penn State aim to protect crops by targeting insect taste buds, which are a direct connection between the central nervous system and the outside. By identifying chemicals that stimulate or suppress feeding behavior, scientists hope to develop more effective control methods for corn rootworm pests.

Seeing How the Brain Changes During Aging

A team of researchers used radiotracer chemicals to study the dopamine system in older adults, finding that dopamine receptors decrease with age. The findings have implications for understanding Parkinson's disease and cognitive decline, suggesting that enhancing dopamine activity could help slow down these effects.

New Book On Composite Materials Available

A new book on composite materials has been published by Virginia Tech professor Michael W. Hyer, focusing on the mechanics aspects of fiber-reinforced composite materials. The book provides a comprehensive approach to understanding the stresses due to applied deformations, loads, and temperature changes.

To Prevent Ice Buildup, Charge It

A Dartmouth physicist has discovered that applying a small electric voltage across an ice-metal interface can break the bond between ice and metal surfaces, potentially preventing or reducing icing on airplane wings. The effect of the voltage can be reversed to increase ice adhesion, which could improve traction on icy roads.

SourceDartmouth College·JournalJournal of Applied Physics·DateMar 30, 1998

Targeted Genetics, M.D. Anderson Cancer Center And University Of Pittsburgh Report Phase I Clinical Trial Results Of Gene Therapy Treatment For Cancer

Researchers successfully delivered and expressed an E1A gene in both diseased and normal human cells using a proprietary non-viral liposomal delivery mechanism. The study showed decreased levels of surrogate tumor markers in three patients with breast and ovarian cancers, indicating potential as a treatment for various types of cancer.