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Endocrine active substances and non-monotonic dose response

EFSA’s ongoing work

22-May-2015

EFSA is currently involved in a number of initiatives to develop scientific knowledge in the field of endocrine active substances and also on overlapping issues such as non-monotonic dose-response relationships and biological relevance in risk assessment. This work follows up on a 2013 scientific ...

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Tunable liquid metal antennas

Using electrochemistry, researchers have created a reconfigurable, voltage-controlled liquid metal antenna

21-May-2015

Researchers have held tremendous interest in liquid metal electronics for many years, but a significant and unfortunate drawback slowing the advance of such devices is that they tend to require external pumps that can't be easily integrated into electronic systems.So a team of North Carolina ...

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New options for spintronic devices: Switching magnetism between 1 and 0 with low voltage near room temperature

21-May-2015

Scientists from Paris and Helmholtz-Zentrum Berlin have been able to switch ferromagnetic domains on and off with low voltage in a structure made of two different ferroic materials. The switching works slightly above room temperature. Their results, which are published online in Scientific ...

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Nature inspires first artificial molecular pump

Simple design mimics pumping mechanism of life-sustaining proteins found in living cells

21-May-2015

Using nature for inspiration, a team of Northwestern University scientists is the first to develop an entirely artificial molecular pump, in which molecules pump other molecules. This tiny machine is no small feat. The pump one day might be used to power other molecular machines, such as ...

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ECETOC Task Force reports on thresholds in chemical respiratory sensitisation

21-May-2015

A variety of chemicals are known to cause allergic sensitisation of the respiratory tract associated with allergic rhinitis and asthma. It is generally accepted that the development of sensitisation of the respiratory tract to chemicals is a threshold phenomenon. That is, a certain minimum level ...

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Pulling crystals for semiconductor technology

Parallel production reduces energy consumption by two thirds

20-May-2015

Crystalline semiconductor components form the core of many modern communication technologies such as computers and mobile phones. They are produced during a multi-day pulling process that uses considerable energy. The BINE-Projektinfo brochure “Efficient production of monocrystalline ...

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Electricity generating nano-wizards

Quantum dots are an ideal nanolab to study the means to turning heat into electricity

20-May-2015

Just as alchemists always dreamed of turning common metal into gold, their 19th century physicist counterparts dreamed of efficiently turning heat into electricity, a field called thermoelectrics. Such scientists had long known that in conducting materials the flow of energy in the form of heat ...

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Efficiency record for black silicon solar cells jumps to 22.1 percent

Aalto University's researchers improved their previous record by over 3 absolute percents

20-May-2015

The researchers from Finland's Aalto University and Universitat Politècnica de Catalunya have obtained the record-breaking efficiency of 22.1% on nanostructured silicon solar cells as certified by Fraunhofer ISE CalLab. An almost 4% absolute increase to their previous record is achieved by ...

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Quantum physics on tap

Nano-sized faucet offers experimental support for longstanding quantum theory

20-May-2015

We all know intuitively that normal liquids flow more quickly as the channel containing them tightens. Think of a river flowing through narrow rapids. But what if a pipe were so amazingly tiny that only a few atoms of superfluid helium could squeeze through its opening at once? According to a ...

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New test detects drug use from a single fingerprint

20-May-2015

Led by the University of Surrey, a team of researchers from the Netherlands Forensic Institute (NL), the National Physical Laboratory (UK), King’s College London (UK) and Sheffield Hallam University (UK), used different types of an analytical chemistry technique known as mass spectrometry to ...

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