West Virginia chemical spill studied by environmental engineers

submitted by: nsf
A chemical spill near Charleston, West Virginia prompted officials to advise about 15 percent of the state's residents to not use the water. In the aftermath, a West Virginia University environmental engineer and her team rushed to the site to collect samples by the Elk River for further analysis. For more information visit: http://www.nsf.gov/news/news_summ.jsp?cntn_id=130304&org=NSF&from=news

Science Behind the News: Tornadoes

submitted by: nsf

Tornadoes are violent, twisting columns of air with wind speeds over 100 miles per hour that can tear communities apart. Josh Wurman, an atmospheric scientist, explains that tornadoes develop in a special type of thunderstorm called a supercell, but that there are still mysteries to unravel.

Provided by the National Science Foundation & NBC Learn

Science Behind the News: Allergies

submitted by: nsf

Seasonal Allergies affect more than 40 million Americans each year. Plant biologist Dr. Kristina Stinson of Harvard University explains how allergies affect the body, and why warmer weather could lead to longer, more severe allergy seasons. "Science Behind the News" is produced in partnership with NBC Learn.

Provided by the National Science Foundation & NBC Learn

Association between prenatal polychlorinated biphenyl exposure and obesity development at ages 5 and 7y: a prospective cohort study of 656 children from the Faroe Islands

submitted by: jltp@mac.com
Abstract Background: Chemicals with endocrine-disrupting abilities may act as obesogens and interfere with the body's natural weight-control mechanisms, especially if exposure occurs during prenatal life. Objective: We examined the association between prenatal exposure to polychlorinated biphenyls (PCBs) and p,p?-dichlorodiphenyldichloroethylene (DDE) and subsequent obesity at 5 and 7 y of age. Design: From 1997 to 2000, 656 pregnant Faroese women were recruited. PCB and DDE were...
Authors: Jeanett L Tang-Péronard, Berit L Heitmann, Helle R Andersen, Ulrike Steuerwald, Philippe Grandjean, Pál Weihe, Tina K Jensen

Generating Electricity More Efficiently with Multiphase Thermoelectric Converter

submitted by: MFerreiraJr
The Multiphase Thermoelectric Converter is a direct thermal-to-electrical energy conversion system designed in order to harvest most of the waste heat energy efficiently into electricity. Conceptually, it works by ionizing hot coolant in order to force it F=q(v × B) to push its ions against moving magnetic fields doing useful work converting thermal energy directly into electric power at high efficiency with almost no moving parts. Essentially, it can be comprised of two sets of concentric...

Monitoring Long-Term Global Climate Change with Ion Chromatography

submitted by: Chrom Solutions
The British Antarctic Survey (BAS) is a leading environmental research center that focuses on the United Kingdom’s national scientific activities in Antarctica. Some of their current research includes long-term monitoring of global climate change via ice core sample analysis of the polar ice caps in both Antarctica and Greenland. In this video, Dr. Ailsa Benton, Ice Core Analytical Scientist at with the BAS, describes her research and how BAS scientists are able to analyze essential anions...