Simulation is an important tool for computer-based development and pretesting of materials, helping eliminate expensive, dangerous mistakes. Computer-based testing is a specialized field of the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern, not least because materials simulation is a complex process involving a great deal of mathematics.
This is especially true of multiscale materials modeling, the mathematical description of materials across multiple spatial and time scales. Graduate mathematician Jörg Willems has significantly improved our understanding of multiscale problems associated with flow dynamics and thermodynamics. His diploma thesis has greatly facilitated the use of numerical simulation in the development of filter media, insulating materials, composite materials and fuel cells. He has been awarded 2nd place in the Hugo Geiger Prize for his work.
When a stroke is diagnosed, every minute is of high value for limiting its impact. Existing treatment protocols only take effect after three to four hours. Physicians are therefore looking for effective alternatives such as stem cell therapy. Johannes Boltze of the Fraunhofer Institute for Cell Therapy and Immunology IZI in Leipzig is one of them. In his doctoral thesis he established a model for examining strokes in rats, and managed to show that treatment with stem cell containing populations shows promising results: “The ability of untreated animals to move after the infarct is severely impaired,” explains Johannes Boltze. “In behavioural tests, for instance, they have difficulty balancing well enough to run across a bar. Not so in the case of the animals we treated with cells.
They nimbly run across again after only a fortnight.” The stem cells promote endogenous healing and organizational processes in the brain. As a result, the surviving nerve cells are probably more resistant to the damage if the treatment is begun within 72 hours after stroke onset. Thus, cells from umbilical cord blood and bone marrow could be used for the stroke trials – an uncontroversial method that avoids any ethical concerns. The cell therapy procedure is ideal for further clinical usage in a stroke unit. Dr. Johannes Boltze received the 3rd place in the Hugo Geiger Prize for his research work.
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In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
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