Biodegradation

Biodegradation is the decomposition of material by microorganisms. It is often used in sewage treatment.

Biodegradable matter is material that can be biodegraded. For example, most plastic bags are not biodegradable, but paper bags are. In managing waste disposal, this can sometimes be an important difference, because plastic bags stay around forever if left as litter, whereas paper bags eventually decompose. However, in anaerobic landfills, whether a material is biodegradable makes little difference: biodegradable matter usually does not decay, because of the lack of oxygen required by the microorganisms.



In the News

Idea Photographic: After Modernism
Companion to a 2002-2003 photography exhibition that "draws upon the work of more than 126 artists, ranging from well-recognized masters in the field to emerging young talents."Explore themes (such as "Photogram Aesthetic"and "Beyond Realism"), artists (such as Henri Cartier-Bresson, Margaret Bourke-White, and Man Ray), and images. Includes essays and exhibition materials. From the Museum of Fine Arts, Santa Fe, New Mexico.

Edible Food Wrap Kills Deadly E. Coli Bacteria
Researchers have improved upon an edible coating for fresh fruits and vegetables by enabling it to kill deadly E. coli bacteria while also providing a flavor-boost to food. Composed of apple puree and oregano oil, which is a natural antibacterial agent, the coating shows promise in laboratory studies of becoming long-lasting alternative to conventional produce washes, according to a team of scientists from the US Department of Agriculture (USDA) and the University of Lleida in Spain.

Longer Hormone Therapy Doesn't Help Prostate Cancer Patients Live Long
Prostate cancer patients treated with either radiation or surgery who use hormone therapy for longer than six months do not survive any longer than patients who use the treatment for a shorter amount of time, according to a study presented November 5, 2006, at the American Society for Therapeutic Radiology and Oncology's 48th Annual Meeting in Philadelphia.

Apple's Parallel Realities
While Mac users get busy running Windows virtually, what's Apple got cooking? In Monkey Bites.

Little Evidence Behind Bronchodilator Therapy For Cystic Fibrosis
Little evidence exists to support the widespread use of bronchodilators to treat children and adults with cystic fibrosis, according to a new systematic review of published research.

Study Shows Protective Equipment Not Very Effective For Rugby Players
A new study conducted by researchers at the universities of North Carolina at Chapel Hill and Otago in Dunedin, New Zealand, shows that protective equipment used in rugby union has only limited effectiveness in preventing injuries.

No Strong Evidence Linking Amateur Boxing With Long-term Brain Injury,
The evidence linking amateur boxing and chronic traumatic brain injury is not strong, concludes a new study. As this runs counter to some earlier findings, the researchers say they cannot firmly prove nor reject the theory that amateur boxing leads to chronic brain injury.

K-State Professor Researching Whether Simulators Help Young Teenagers
Researchers at Kansas State University are studying whether using driving simulators helps make young teenagers safer when they take to the road. At the American Psychological Society meeting May 26-29, K-State professor Renee Slick and students will give two presentations on the STAR Lab's research: "Psychophysiological measures as a proxy for psychological fidelity: A pilot study of college drivers,"and "Workload and perceived distraction from secondary tasks in teen drivers."

Overweight Toddlers And Those Not In Day Care At Risk For Iron Deficie
Overweight toddlers and those not enrolled in day care are at high risk for iron deficiency, according to a new study. Based on data from a national survey of 1,641 toddlers, the study found that 20 percent of overweight toddlers were iron-deficient, compared to 8 percent of those at risk for being overweight, and 7 percent of normal-weight toddlers.

More Kids 'On Track' at School -- 1 in 4 Gifted -- According to Census
This January 2007 press release is for "A Child's Day: 2003,"the "third examination of children's well-being and their daily activities based on the Census Bureau's Survey of Income and Program Participation (SIPP)". Topics include education, child care arrangements, and participation in sports. Features highlights of the report, and link to the full report, detailed tables, and podcasts related to the report. From the U.S. Census Bureau.


MP3 Music Downloads

Preview songs, Download Free Music,Burn CDs at ITunes.com
iTunes_RGB_9mm

 


Google




InformationQuickFind.com - Find Information Fast

Links