A new study suggests that lead may be harmful even at very low blood concentrations. The study, funded by the National Institute of Environmental Health Sciences of the National Institutes of Health, will appear in the April 17 edition of The New England Journal of Medicine.
The five-year study found that children who have blood lead concentration lower than 10 micrograms per deciliter suffer intellectual impairment from the exposure. The researchers also discovered that the amount of impairment attributed to lead was most pronounced at lower levels. The study was carried out by researchers from Cornell University, Cincinnati Childrens Hospital Medical Center, and the University of Rochester School of Medicine.
An important feature of this new study is its focus on children with blood lead levels below 10 micrograms per deciliter, a threshold currently used by the Centers for Disease Control and Prevention to define an elevated lead level. Previous research has been concerned primarily with leads effects in the 10 to 30 micrograms per deciliter range, yet the new study finds lead-related impairments at lower levels.
Tom Hawkins | EurekAlert!
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Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
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A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
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