Twelve women recently completed 60 days of voluntary bedrest in order to simulate the physiological effects of weightlessness on the human body. The research team in Toulouse, France, is now actively seeking twelve new volunteers to enable them to continue and enhance the research.
At the beginning of June, the twelve volunteers from the first phase of the WISE study (Women International Simulation Experiment), were progressively released as they were gradually returned to an upright position at the space medicine clinic at the French Institute for Space Medicine and Physiology (MEDES) in Toulouse.
For two months, the twelve women hade been lying in beds inclined at an angle of 6°, with their feet slightly higher than their heads, to induce the same conditions in the body as those experienced during long periods of weightlessness. The volunteers were divided into three groups of four in order to study the effects of special measures designed to counter the loss of muscle, fluid and bone mass and the reduction of certain functions (such as cardiac function and movement).
Dieter Isakeit | alfa
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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.
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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.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
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The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
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