Some of the toxins found in our air and waterways were put there intentionally: DDT, for instance, was introduced to protect against malaria and other insect-borne diseases. Others find their way into the environment unintentionally.
Environment
Jul 1, 2014
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In a new study a team of researchers lead from Uppsala University show how lactase persistence variants tell the story about the ancestry of the Khoe people in southern Africa. The team concludes that pastoralist practices ...
Biotechnology
Apr 3, 2014
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Until now, biofilms—colonies of microbes like bacteria that grow together in a matrix produced by the cells themselves—have been poorly understood. Yet, they can be costly and dangerous. Infections related to hip- and ...
Cell & Microbiology
Mar 11, 2014
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Anthropologists at Johannes Gutenberg University Mainz and geneticists at University College London, working in collaboration with archaeologists from Berlin and Kiev, have analyzed ancient DNA from skeletons and found that ...
Evolution
Mar 10, 2014
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Back in the Middle Ages, Central Europeans were already capable of digesting milk, yoghurt and cheese just as well as us today. Researchers at the University of Zurich's Centre for Evolutionary Medicine have discovered that ...
Evolution
Jan 23, 2014
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Ancient DNA from early Iberian farmers shows that the wideheld evolutionary hypothesis of calcium absorption was not the only reason Europeans evolved milk tolerance.
Evolution
Jan 21, 2014
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Quite by accident, Washington State University researchers have achieved a 400-fold increase in the electrical conductivity of a crystal simply by exposing it to light. The effect, which lasted for days after the light was ...
General Physics
Nov 14, 2013
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The flame retardant HBCD may no longer be produced or used. This was decided by representatives from over 160 countries in late May at a UN conference on chemicals in Geneva. Empa's extensive research on HBCD, formerly used ...
Other
Aug 26, 2013
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Recurrent infection is a common feature of persistent viral diseases. It includes episodes of high viral production interspersed by periods of relative quiescence. These quiescent or silent stages are hard to study with experimental ...
Mathematics
May 31, 2013
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Lars-Otto Reiersen is a marine biologist by training, now working as an environmental scientist in Norway. He has led the Arctic Monitoring and Assessment Programme (AMAP) for over two decades. AMAP advises the governments ...
Environment
May 3, 2013
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