Biophysicists at Stanford University have finally answered one of the most fundamental questions in molecular biology: How does the tiny motor molecule, known as kinesin, move across a living cell? According to the researchers, the solution to this longstanding problem will provide new insight into how motor proteins function, and may open new avenues of investigation for the treatment of cancer and various neurodegenerative diseases, such as Alzheimers and Huntingtons.
The study, published in the Dec. 4 online edition of the journal Science, was co-authored by Steven M. Block, a professor of applied physics and of biological sciences at Stanford.
"Motion at the cellular level is a hallmark of being alive," Block said. "A fundamental question is, how did living organisms figure out how to move? The answer is they developed kinesin and several other very efficient protein motors. If kinesin were to fail altogether, you wouldnt even make it to the embryo stage, because your cells wouldnt survive. Its that important."
Mark Shwartz | EurekAlert!
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Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.
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With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
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