Galactic disks and their evolution

We consider the key problems related to measuring the mass of stellar disks and dark halos in galaxies and to explaining the observed properties of disks formed in massive dark halos.Comment: 6 pages, 2 figure

SOFTWARE FOR MATHEMATICAL MODELLING AND COMPUTER SIMULATION OF SPORTS MOVEMENTS AND TRAINING APPARATUS

NI

Anxiety and depression in patients with multiple sclerosis

Multiple sclerosis is a chronic progressive inflammatory autoimmune disease of the central nervous system. This disease mainly affects young females and leads to disability of the patient, which causes a significant socio-economic burden which this disease causes. Clinically, multiple sclerosis is characterized by a wide variety of neurological and neuropsychological manifestations: movement disorders, sensory disturbances and cognitive dysfunction. One of the most typical psycho-emotional disorders that occur in patients with multiple sclerosis are anxiety and depression. The article is devoted to the study of the features of these disorders in patients with multiple sclerosis. The purpose of the study is to evaluate and characterize psycho-emotional disorders in patients with relapsing-remitting multiple sclerosis. The study included 105 patients with relapsing-remitting multiple sclerosis who underwent inpatient treatment in the Department of Neurology No. 1 Municipal Institution “Dnipropetrovsk Regional Clinic Hospital named after I.I. Mechnykov" Dnipropetrovsk Regional Council". Among the patients included in the study, there were 74 women (70.5%) and 31 men (29.5%). The largest proportion of those surveyed falls on the age group from 25 to 40 years – 80 (76.2%). All participants were assessed according to the generally accepted scale for multiple sclerosis patients assessment – Expanded Disability Status Scale (EDSS). All study participants were divided into two groups – group 1 and group 2 – according to the degree of disability according to EDSS. Considering that the degree of disability according to EDSS≤3.5 is defined as mild, and most patients had just this level, they were assigned into group 1, patients with a score of 3.5<EDSS≤6.5 points were assigned to group 2 with a moderate degree of disability. The number of participants in group 1 was 73 patients (69.5%), group 2 – 32 (30.5%). The psychoemotional sphere was assessed using validated psychodiagnostic tests: Beck Depression Inventory and the State-Trait Anxiety Inventory. The average level of depression, determined by Beck Depression Inventory, was 16.0 (13.0; 18.0) points among all examined, in patients of the 1st group – 14.0 (11.0; 16.0) points, while in patients of the 2nd group it was significantly higher (p<0.001) and amounted to 19.0 (19.0; 24.5) points. Assessment of the level of anxiety according to State-Trait Anxiety Inventory showed that in the majority of patients (84.8%) the level of reactive anxiety was moderate (31-44 points) and made up 36.0 (34.0; 39.0) points. Indicators of personal anxiety in most cases (69.5%) were low (up to 30 points) and averaged 27.0 (24.0; 31.0) points. It should be noted that the level of reactive anxiety exceeded the level of personal anxiety in the study groups and in general among all examined (p<0.001 for all comparisons). Anxiety and depression are very common psychoemotional disorders in patients with relapsing-remitting multiple sclerosis. The relationship between the degree of depression, as well as personal and reactive anxiety and the degree of disability according to the EDSS, has been revealed, but the origin of these disorders is still not clear. Given the significant influence of psycho-emotional disorders on the quality of life of patients and the course of the disease, timely diagnosis and treatment should be the priority areas of management of patients with multiple sclerosis

Pathogenetic assessment of external respiratory function disturbance and is interrelation with BDNF gene polymorphism in military servicemen in extreme conditions of the Arctic zone

Relevance. To date, the etiopathogenesis of polar hypoxia and its relationship with polymorphismes genes have not been fully studied. The aim of the study is to study the pathogenesis of ventilation disorders and polar hypoxia and their relationship with gene polymorphisms in military personnel serving in the Arctic zone. Materials and methods. 98 servicemen from the Arctic climate zone (above 70°N 30-90°E) and 94 people from the temperate climate zone (50°N 30-90°E) were examined. into three groups: 1st group - 8 (8%) military personnel, length of service up to 5 years, 2nd group - 21 (21%) people - experience from 5 to 10 years, 3rd group - 70 (71%) persons over 10 years. The average annual indicators of atmospheric pressure and air temperature in climatic zones were calculated on the basis of open archival data obtained from LLC Weather Schedule rp5.ru. Blood saturation was measured on a Berry BM1000B pulse oximeter, Tiffno index and FEV1 on a USPTs-01 spirometer; gene polymorphism by PCR on a DT-Prime amplifier. Results. Military personnel in the Arctic zone showed a decrease in blood saturation by 1.1%, a decrease in the level of FEV1 and the Tiffno index by 13.9% and 7.2%, respectively, compared with persons from the temperate climate zone (p<0.01). The Tiffno index was reduced in military personnel with the A/A genotype of the BDNF gene (rs6265) (p<0.01). Conclusion. In the Arctic zone (above 70°N 30-90°E) military personnel have an obstructive type of ventilation disorders and hypoxemia with inertia of long-term protective and adaptive reactions to hypoxia and cold. Servicemen with the A/A genotype of the BDNF gene (rs6265) are less adapted to the conditions of polar hypoxia and cold in the Arctic climate zone

Возможности интеграции нейронной сети в мобильное приложение с использованием фреймворков машинного обучения

В работе рассмотрены основные подходы к интеграции нейронных сетей в мобильные приложения, отмечены их достоинства и недостатки. Представлен обзор наиболее популярных фреймворков машинного обучения, применяемых для интеграции нейронных сетей в мобильное приложение. В качестве примера рассмотрены основные этапы использования TensorFlow Lite для классификации аудиозаписей на мобильном устройстве

Thin films CdS/CdTe solar cells with different activation processes base layer

Shown in this work is the possibility to create industrial technology for production of solar cells FTO/CdS/CdTe. The technology includes annealing in freon processing step for activation of cadmium telluride base layers deposited by thermal vacuum evaporation. Solar cells with efficiency of 7% have been obtained. Structural and morphological researches allowed to identify interrelation between photovoltaic characteristics and features of the recrystalization process in base layers after annealing in freon as compared with the standard chloride treatment

Catalog of Nearby Isolated Galaxies in the Volume z<0.01

We present a catalog of 520 most isolated nearby galaxies with radial velocities V_LG<3500 km/s covering the entire sky. This population of "space orphans" makes up 4.8% among 10900 galaxies with measured radial velocities. We describe the isolation criterion used to select our sample, called the "Local Orphan Galaxies" (LOG), and discuss their basic optical and HI properties. A half of the LOG catalog is occupied by the Sdm, Im and Ir morphological type galaxies without a bulge. The median ratio M_gas/M_star in the LOG galaxies exceeds 1. The distribution of the catalog galaxies on the sky looks uniform with some signatures of a weak clustering on the scale of about 0.5 Mpc. The LOG galaxies are located in the regions where the mean local density of matter is approximately 50 times lower than the mean global density. We indicate a number of LOG galaxies with distorted structures, which may be the consequence of interaction of isolated galaxies with massive dark objects