Results 11 to 20 of about 384,763 (269)
Mechanical Mechanisms of Chromosome Segregation [PDF]
Cells, 2021 Chromosome segregation—the partitioning of genetic material into two daughter cells—is one of the most crucial processes in cell division. In all Eukaryotes, chromosome segregation is driven by the spindle, a microtubule-based, self-organizing subcellular structure.
Maya I. Anjur-Dietrich +2 more
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Genome Research, 1998 A number of recent studies have provided new insights into mechanisms that regulate genomic imprinting in the mammalian genome. Regions of allele-specific differential methylation (DMRs) are present in all imprinted genes examined. Differential methylation is erased in germ cells at an early stage of their development, and germ-line-specific ...
Constância, Miguel +3 more
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Ribosome Mechanics Informs about Mechanism [PDF]
Journal of Molecular Biology, 2016 The essential aspects of the ribosome's mechanism can be extracted from coarse-grained simulations, including the ratchet motion, the movement together of critical bases at the decoding center, and movements of the peptide tunnel lining that assist in the expulsion of the synthesized peptide. Because of its large size, coarse graining helps to simplify
Michael T. Zimmermann +2 more
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External Ballistics Simplified Model of the “RT – 400” Rocket Aerial Target [PDF]
Problemy Mechatroniki, 2018 “RT-400” rocket aerial target system is described in the paper; research method of its simplified external ballistics characteristics is presented and the obtained results are discussed.
Algimantas FEDARAVIČIUS +3 more
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Dynamics and Control of Gyroscopic System of Bomb Guidance on a Ground Target [PDF]
Problemy Mechatroniki, 2015 The paper presents an algorithm of guiding the bomb on a ground target using the gyro system. There are considered different cases of the execution of flight path program combined with bomb homing in the final stretch of the flight. There are also quoted
Zbigniew KORUBA, Marta GRZYB
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Informaciâ i Innovacii, 2018 The article considers the indicators of publication activity in 2013-2017 and citation of Russian scientists in the field of biology, mathematics, Geology and mechanics, reflected in the Web of Science Core Collection (WoS CC) and the Russian science ...
V. V. Arutyunov, V. A. Tsvetkova
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Layered Perforated Steel Armour [PDF]
Problemy Mechatroniki, 2014 The article presents design and testing methods of layered perforated steel armour developed by HTK Company and Military Institute of Armament Technology, which can be used as add-on-armour of vehicles and other light armoured objects.
Wiesław Stępniak +2 more
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A Probabilistic Model of Optimising Perforated High-Strength Steel Sheet Assemblies for Impact-Resistant Armour Systems [PDF]
Problemy Mechatroniki, 2017 This paper presents a concept for optimising an assembly of perforated metal sheets with a probabilistic theory, and the results of testing perforated bainite steel sheets with a nanocrystalline structure.
Wojciech BURIAN +3 more
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Life, 2023 The multifarious internal workings of organisms are difficult to reconcile with a single feature defining a state of ‘being alive’. Indeed, definitions of life rely on emergent properties (growth, capacity to evolve, agency) only symptomatic of intrinsic functioning. Empirical studies demonstrate that biomolecules including ratcheting/rotating enzymes,
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Annals of Indian Academy of Neurology, 2022 Large vessel occlusion stroke contributes to disability and mortality out of proportion to its incidence. Over time it was noted that intravenous thrombolysis alone was not sufficient for this stroke type. Slowly, endovascular approach and mechanical clot retrieval have come out to be the biggest advances in the field of ...
Chintan Prajapati +3 more
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