Electrical signals from nerves in the brain cause weak magnetic fields which can be measured by means of magnetoencephalography (MEG). A project supported by the Austrian Science Fund (FWF) has investigated the extent to which direct measurement of neural electrical activity can be coupled with MEG to diagnose and treat epilepsy. The findings are important in view of today’s spiralling health care costs, as the apparatus used to detect magnetic fields in the brain is 30 times as expensive as that used to measure electrical signals directly.
About three percent of all Europeans develop epilepsy in the course of their lifetimes. In Austria 64,000 people are currently suffering from the disease. The illness is typically caused by unusual activity in the nerve cells in certain regions of the brain. This can be measured by electroencephalography (EEG) - a technique that has been around for over 70 years - or MEG which is a much more recent development. Professor Christoph Baumgartner of the Neurological University Clinic at Vienna General Hospital has looked into the effect of combining both methods on the accuracy with which the affected parts of the brain can be localised. The results of the research, which was supported by the FWF, indicate that the new approach is better than either EEG or MEG alone at localising the hyperactive regions of the brain. It also has the advantage that the risky "invasive" methods - introducing electrodes into the brain - do not have to be used as often.
Prof. Christoph Baumgartner | alfa
Improving memory with magnets
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The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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