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Saving data in vortex structures21.02.2012 - Faster, smaller and more energy-efficient – that is what computers of the future should be like. A new phenomenon stands to make a major contribution in this direction: It needs 100,000 times less current than existing technologies, and the number of atoms needed for a data bit could diminish significantly. A team of physicists from the Technische Universitaet Muenchen (TUM) and the University of Cologne are driving this technology forward. They have now developed a simple electronic method for moving and reading data bits. The journal Nature Physics reports on their results.
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Determination of the immunoproteasome crystal structure16.02.2012 - Like a shredder, the immunoproteasome cuts down proteins into peptides that are subsequently presented on the cellular surface. The immune system can distinguish between self and nonself peptides and selectively kills cells that due to a viral infection present non-self peptides at their surface. In autoimmune diseases this mechanism is deregulated and the immune system also eliminates uninfected cells by mistake. However, inhibition of the immunoproteasome may alleviate disease symptoms and progression. Biochemists at the Technische Universitaet Muenchen (TUM) now succeeded in determining the first crystal structure of an immunoproteasome. The results are reported in the renowned journal “Cell” and will enable the development of new drugs that selectively target the immunoproteasome.
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The world’s strongest and purest neutron beam13.02.2012 - The world’s strongest neutron beam is produced by a scientific instrument at the research neutron source FRM II (Forschungs-Neutronenquelle Heinz Maier-Leibnitz) at the Technischen Universitaet Muenchen (TUM). But that is not all: During the long maintenance break in 2011, the instrument PGAA (Prompt Gamma Activation Analysis) was improved to give it the best ratio between usable neutrons and noisy background radiation worldwide. It is now possible to determine the elementary composition of even smallest samples in the milligram range. The instrument is operated by the Universities of Cologne (Germany) and Bern (Switzerland).
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