Plastic power: polymers take a step forward as photovoltaic cells and lasers

Article Abstract:

Semiconducting polymers may soon be used for photovoltaic cells and lasers. Researchers at the Advanced Research Development in Athol, MA, have designed plastic solar cells utilizing polyvinyl alcohol and polyacetylene. Films of this copolymer can convert 75% of the light received into electricity.

Usage, Polymers, Photovoltaic cells, Materials

---

Suicide prevention

Article Abstract:

Neurobiological research reveals a significant correlation between suicidal tendencies and serotonin levels in the brain. Brain tissue samples from groups predisposed to high suicide rates, such as alcoholics, showed a high number of serotonin receptors and low levels of serotonin.

Psychological aspects, Research, Physiological aspects, Suicide, Neurobiology, Cellular signal transduction, Serotonin

---

The price of prevention

Article Abstract:

Many quarters had advocated the inclusion of preventive medicine programs in the health care reform proposal in the belief that such efforts would help cut medical spending. However, research shows that preventive medicine is not worth its cost, except in very few cases.

Evaluation, Health care reform, Preventive medicine, Medicine, Preventive

Similar abstracts:

• Abstracts: Blue whale population may be increasing off California. Mapping the cell's nucleus. Ecologists put some life into models of a changing world
• Abstracts: Nucleotide sugar transporters of the Golgi apparatus: From basic science to diseases. Effect of carboxylate-binding mode on metal binding/selectivity and function in proteins
• Abstracts: Once upon a time there was a theory. The Gulliver effect. The insignificance of statistical significance
• Abstracts: The defense initiative of the 1990s. Interfering with atoms to clear a path for lasers. Resurgent mosquitoes, dengue in Cuba
• Abstracts: Contaminant uranium phases and leaching at the Fernald site in Ohio. Comprehensive approach toward understanding element speciation and leaching behavior in municipal solid waste incineration electrostatic precipitator ash

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.