Expert says the government must do more to eliminate lead from the environment
Exposure to lead may be one of the most significant causes of violent crime in young people, according to one of the nation’s leading researchers on the subject. "When environmental lead finds its way into the developing brain, it disturbs neural mechanisms responsible for regulation of impulse. That can lead to antisocial and criminal behavior," reported Herbert L. Needleman, M.D., professor of psychiatry and pediatrics at the University of Pittsburgh School of Medicine, at the 2005 American Association for the Advancement of Science (AAAS) Annual Meeting. "The government needs to do more to eliminate sources of lead in the environment."
According to the U.S. Environmental Protection Agency, humans can encounter lead through deteriorating paint and dust, air, drinking water, food and contaminated soil. Sources of lead are plentiful – until the 1970s lead was used in paint, gasoline and older water pipes. Today, much of that lead is still out there – on old window frames, in the soil of the vegetable gardens and in the drinking water of many American cities.
Craig Dunhoff | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
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A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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