Arsenic Current Events | Arsenic News | 4
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New toxicity test could cut animal testing
To test whether chemicals are toxic to humans, researchers need to use liver cells that have been freshly harvested from mice or other mammals. A new collection of stable cell lines, described in BMC Biotechnology this week, could reduce the numbers of animals needed in such experiments. The MMH-GH cell lines are derived from the liver cells of... view more... (2004-03-17)
Study shows transfer of heavy metals from water to fish in Huelva estuary
A team of researchers from the University of Cadiz has confirmed that zinc, copper and lead are present at high levels in the water and sediments of the Huelva estuary, and have studied how some of these heavy metals are transferred to fish. view more (2009-06-16)
Waxy plant substance key for absorption of water, nutrients
While proving a long-held theory that suberin blocks water and nutrient absorption in plants, a Purdue University scientist learned more about manipulating the substance to better feed plants. view more (2009-05-26)
Nanoscientists Provide New Picture of Semiconductor Material
For almost a decade, scientists thought they understood the surface structure of cubic gallium nitride, a promising new crystalline semiconductor. view more (2005-10-05)
Finding key to cancer drug Gleevec's limitations
University of Michigan researchers have developed an animal model that provides strong evidence why imatinib, marketed as Gleevec, helps patients with chronic myeloid leukemia survive longer, but does not keep the disease from returning if treatment ends. view more (2009-08-05)
Well water should be tested annually to reduce health risks to children
Private well water should be tested yearly, and in some cases more often, according to new guidance offered by the American Academy of Pediatrics (AAP). view more (2009-05-26)
Combatting groundwater pollution
Groundwater pollution poses a mounting threat to environmental sustainability and public health in Europe, as many countries are becoming increasingly dependent on groundwater for their drinking water supplies. As this water becomes more and more polluted, they are currently faced with two options: develop increasingly complex and expensive... view more... (1998-11-16)
'Racetrack' for fast electrons in semiconductor structures
In order to realize the electrical units of voltage, resistance and current with highest accuracy quantum effects in nano-circuits are nowadays used. Important prerequisites are extremely pure semiconductor layers where high-mobile electrons move through the crystal without collision with residual impurities. view more (2008-08-29)
Silicon with afterburners: Process developed at Rice could be boon to electronics manufacturer
Scientists at Rice University and North Carolina State University have found a method of attaching molecules to semiconducting silicon that may help manufacturers reach beyond the current limits of Moore's Law as they make microprocessors both smaller and more powerful. view more (2009-07-24)
Exposure to Agent Orange linked to prostate cancer in Vietnam veterans
UC Davis Cancer Center physicians today released results of research showing that Vietnam War veterans exposed to Agent Orange have greatly increased risks of prostate cancer and even greater risks of getting the most aggressive form of the disease as compared to those who were not exposed. view more (2008-08-05)
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