Quantcast

Latest light energy Stories

2011-06-27 21:08:07

Process uses commercial camera, free software to produce accurate, inexpensive results The productivity and health of horticultural crops depends on the ability of the plant cover to intercept light energy. This ability is a function of the amount of leaf area, the architecture of the vegetation cover, and plants' ability to convert light energy. One estimate of a crop's ability to capture light energy is the leaf area index (LAI). Introduced in 1947, the concept of the LAI was defined as the...

2010-10-22 01:30:55

Uses light energy to silence gene activity Antigene therapy is a promising new treatment strategy that uses a DNA-based drug to pinpoint light energy to a target gene shutting down its activity. A review article published online ahead of print in Oligonucleotides, a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com), details the possibilities and challenges for the clinical application of this novel photo-activated DNA modulating approach. The article is available...

2009-11-25 15:18:57

Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death. Scientists at the Carnegie Institution were part of a team that found that specific proteins in algae can act as a safety valve to dissipate excess absorbed light energy before it can wreak havoc in cells. The research, performed mostly by Graham Peers in the laboratory of Krishna...

2009-05-04 16:00:00

A U.S.-led international team of scientists says it has determined the structure of chlorophyll molecules in green bacteria that harvest light energy. The researchers said their findings might one day be used to build artificial photosynthetic systems, such as those that convert solar energy to electrical energy. We found that the orientation of the chlorophyll molecules make green bacteria extremely efficient at harvesting light, said Pennsylvania State University Professor Donald Bryant,...

2009-04-27 09:42:00

Traditional ceiling fan technology teams up with ultraviolet-C light energy for 99% germ reduction CLEVELAND, April 27 /PRNewswire/ -- Haledyne announced today the introduction of the Healthy Fan, which improves the indoor environment of a home by killing more than 99 percent of airborne germs. The Healthy Fan maximizes air circulation by utilizing traditional ceiling fan technology in combination with a mounted air purifying medallion. It uses Ultraviolet-C (UV-C) light energy to decrease...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.