Erosion yields of carbon under various plasma conditions in Pilot-PSI

Fine-grain graphite targets have been exposed to ITER divertor relevant plasmas in Pilot-PSI to address material migration issues in fusion devices. Optical emission spectroscopy and mass loss measurements have been employed to quantify gross chemical erosion and net erosion yields, respectively. Effects of the ion impact energy and target geometry on carbon erosion yields have been studied. It is concluded that temporal evolution of gross chemical erosion is strongly connected with changes in morphology of plasma exposed surfaces. The net carbon erosion yield is increased when the targets are partly covered by insulating boron-nitride rings.Comment: 14 pages, 4 figures, Contribution to the 19th International Conference on Plasma Surface Interaction

ASSESSMENT OF PSYCHOPHYSIOLOGICAL CONDITION OF VARIOUS LEVELS OF MENTAL HEALTH IN PERSONS OF HAZARDOUS OCCUPATION

At Hie present time, studying psychophysiological condition of levels of mental adaptation by means of objective indices is especially actual. Therefore, the identification and assessment of the indices characterizing the functional condition of an organism will allow the expert to decide on the level of mental adaptation. We examined 75 respondents which were divided into groups in correspondence with V.Y. Semke's concept. Primary diagnostic measures included clinical and psychological methods, the assessment of the functional condition of nervous system, short record of variability of cardiac rhythm. Features of psychophysiological condition of processes of regulation and functioning of ground levels of mental health in persons of hazardous occupation are studied. /Is a result of the conducted research, we revealed the reliable changes in the psychoadaptation and psychodisadaptation state in vegetative system of supporting of the processes of regulation of an organism in group (p < 0,05) (according to the indices of spectral analysis of cardiac rhythm and variation ofpulsometry according to R.M. Bayevsky). The tension index increased from 45,92 ± 31,81 to 347,94 ± 434,01 (p < 0,05). Reliable negative dynamics of change of clinical, psychological and psychophysiological indexes is shown upon transition from the first to the third level of mental health (p < 0,05)

Features of molecular mechanisms of insulin resistance pathogenesis in various tissues in obesity

Obesity is a chronic pathology, which experts of theWorld Health Organization regard as an epidemic, based on the high rates of annual growth in the proportion of the overweight population in almost all countries of the world. Obesity is the leading cause of tissue insulin resistance and type 2 diabetes mellitus. This disease is fraught with serious complications: the onset and aggravation of cardiovascular pathology, non-alcoholic fatty liver disease, the appearance of certain types of malignant neoplasms and dysfunctions of the reproductive system. Adipose tissue, skeletal muscle and liver play unique roles in maintaining metabolic homeostasis of the whole organism. These differences are due to the tissue-specificity of the intracellular signaling  pathways of insulin. This review presents the current literature data on the features of the molecular mechanisms responsible for disturbances in the conduction of regulatory insulin signals at the intracellular level in its main target organs in obesity. The data on the nature of disturbances  in interorgan metabolic flows caused by the growth of adipose tissue mass and their participation in the formation of insulin resistance in the liver and muscles are presented. The importance of  further in-depth study of the tissue features of the mechanisms of insulin resistance pathogenesis  for the development of new targeted pharmaceuticals that will serve to improve the complex drug correction of metabolic disorders in patients with type 2 diabetes is discussed

Клинико-лабораторные аспекты новой коронавирусной инфекции у новорожденных и детей грудного возраста

Purpose: to identify clinical and laboratory aspects of a new coronavirus infection in newborns and infants. Materials and methods: a retrospective analysis of 131 observations of newborns and infants infected with SARS-CoV-2 treated in children's infectious diseases departments of Izhevsk was carried out. Results. The course of coronavirus infection in newborns and infants who became ill on an outpatient basis and were hospitalized did not have significant specific clinical and laboratory features and was similar to the symptoms of major respiratory infections. Among the hospitalized, 80.9% of children had a mild severity of coronavirus infection, the rest of the children had a moderate course. The clinical picture was dominated by cough (86.3%), nasal congestion (74%) and fever (71.8%). Significant clinical differences were obtained in newborns in the form of predominance of nasal obstruction, and in infants in the predominance of fever and dry cough. Pneumonia was diagnosed in 19.1% in the form of a mild, mainly bilateral lesion.Цель: выявление клинических и лабораторных аспектов новой коронавирусной инфекции у новорожденных и детей грудного возраста. Материалы и методы: проведен ретроспективный анализ 131 наблюдения новорожденных и детей грудного возраста, инфицированных SARS-CoV-2, получавших лечение в детских инфекционных отделениях г. Ижевска. Результаты. Течение коронавирусной инфекции у новорожденных и детей грудного возраста, заболевших в амбулаторных условиях и госпитализированных, не имело значимых специфических клинических и лабораторных особенностей и было схоже с симптомами основных респираторных инфекций. Среди госпитализированных у 80,9% детей преобладала легкая степень тяжести коронавирусной инфекции, у остальных детей отмечалось среднетяжелое течение. В клинической картине преобладал кашель (86,3%), заложенность носа (74%) и лихорадка (71,8%). Получены достоверные клинические различия у новорожденных в виде преобладания обструкции носовых ходов, а у грудных детей в превалировании лихорадки и сухого кашля. Пневмония была диагностирована в 19,1% случаев в виде нетяжелого, преимущественно двустороннего, поражения

Experimental Substantiation of Cultural Technologies Introduction into Manufacturing of Anti-Rabies Immunoglobulin

The review provides information on the major outcomes of research and development work, performed within the frames of the Federal Target Program “National system of chemical and biological safety” (2009-2014), aimed at elaboration and introduction of cultural techniques into the manufacturing of anti-rabies immunoglobulin. Described are the key phases in methodology engineering, deployed for the large-scale cultivation of fixed rabies virus, concentration of cultural liquid, quantitation of rabies virus using PCR, and immunization of producers. Obtained pilot batches of the enhanced anti-rabies immunoglobulin, complying with normative requirements to commercial formulations, testify to the effectiveness of the developed biotechnological and methodological procedures, as well as of the designed engineering-manufacturing project documentation

Micro-CT-based analysis of fibre-reinforced composites:Applications

The paper presents an overview of cases in which the analysis of the internal structure and mechanical properties of fibre reinforced composites is performed based on the micro-computed X-ray tomography (micro-CT) reconstruction of the composite reinforcement geometry. In all the cases, the analysis relies on structure tensor-based algorithms for quantification of the micro-CT image, implemented in VoxTex software

Nucleotide Sequence and Phylogenetic Analysis of Glycoprotein-G of the Russian Fixed Rabies Virus Strain “Moscow 3253”

Fully sequenced have been glycoprotein-G, sha-psi region, as well as H-end site of the L-gene in the rabies virus strain “Moscow 3253”. Compared are amino acid sequences of proteins of “Moscow 3253” strain and other fixed strains of the virus. Established is 98 % DNA homology with RV-97, and 91% homology with PV (Pasteur virus) strain. Constructed has been phylogenetic tree of the strain under study alongside with various groups of fixed rabies virus. It is revealed that “Moscow 3253” strain has closer genetic relations with Japanese group of strains, than with PV strain. Put forward is an assumption that PV strain does not derive from the virus isolated by Pasteur, but relates to the American group of strains

Levetiracetam Reverses Synaptic Deficits Produced by Overexpression of SV2A

Levetiracetam is an FDA-approved drug used to treat epilepsy and other disorders of the nervous system. Although it is known that levetiracetam binds the synaptic vesicle protein SV2A, how drug binding affects synaptic functioning remains unknown. Here we report that levetiracetam reverses the effects of excess SV2A in autaptic hippocampal neurons. Expression of an SV2A-EGFP fusion protein produced a ∼1.5-fold increase in synaptic levels of SV2, and resulted in reduced synaptic release probability. The overexpression phenotype parallels that seen in neurons from SV2 knockout mice, which experience severe seizures. Overexpression of SV2A also increased synaptic levels of the calcium-sensor protein synaptotagmin, an SV2-binding protein whose stability and trafficking are regulated by SV2. Treatment with levetiracetam rescued normal neurotransmission and restored normal levels of SV2 and synaptotagmin at the synapse. These results indicate that changes in SV2 expression in either direction impact neurotransmission, and suggest that levetiracetam may modulate SV2 protein interactions