Despite success of molecular genetics that developed efficient methods for educing mitochondrial DNA from fossil bones, anthropologists prefer primary sources as before and keep investigating skulls. Each skull possess multitude of distinctive and well-perceptible signs: these are supplementary and fontanel bones, sutural bones (epactal ossicle), accessory and inconstant orifices, appendices and protuberances.
As peculiarities of the skull structure are genetically determined, the set of signs allows to judge about the genotype of its owner, and the frequency at which some feature is found reflects genetic peculiarities of the population. In this case, the idea about genetic diversity of populations including the fossilized ones, and about their kinship may be compiled without resorting to molecular methods, thus making the process much easier and less expensive. But will this information be trustworthy?
In various anthropological museums, researchers collected and described 3,475 skulls of representatives of 62 nations of the world. The analysis was carried out based on 35 signs. The obtained level of inter-ethnic diversity is comparable with the already known level of genetic diversity, therefore, signs of skull bones structure represent a trustworthy source of information that is particularly precious in the cases when only bones remain from studied nations.
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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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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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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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