123 research outputs found
Assessment and analysis components of physical fitness of students
It is assessed components of a physical fitness of students. It is analyzed the internal and external factors affecting the quality of life for students. The study involved more than 200 students. Found that students represent a category of people with elevated risk factors, which include the nervous and mental tension, constant violations of the food, work and leisure, in their way of life there is a lack of care about their health. It is noted that the existing approaches to promoting physical fitness of students are inefficient and require the development and implementation of brand new contemporary theoretical foundations and practical approaches to the problem of increasing the activity of students. It is proved that sold today in the practice of higher education forms, methods, learning tools do not allow to fully ensure the implementation of approaches to promoting physical fitness of students do not meet the requirements for the preparation of the modern health professional
Probiotics: controversial issues
Recent studies have strongly confirmed the health benefits of a variety of probiotic microorganisms. However, some issues regarding the use of probiotics currently remain unresolved or ambiguous. This article highlights some controversial issues of probiotic use in clinical practice such as regulatory status of probiotics, co-administration of probiotics and antibiotics, potential impact of probiotics on antimicrobial resistance emergence and spread, dosing and duration of probiotic use, contraindications and some other debatable topics
Rhino-cerebral mucormycosis in patients with COVID-19: clinical cases and treatment in a regional hospital
Mucormycosis is a serious fungal infection, which increased significantly during the COVID-19 pandemic. We retrospectively analyzed 5 histopathologically confirmed cases of rhino-cerebral mucormycosis, which were diagnosed in patients admitted to Smolensk regional clinical hospital from November 2021 to January 2022. All patients were older than 60 years of age and had a recent history of laboratoryconfirmed severe COVID-19 and were treated in infection hospitals. All patients had decompensated type 2 diabetes mellitus; 80% of patients had concomitant cardiovascular diseases (coronary heart disease, arterial hypertension), 100% of patients received previous treatment with systemic corticosteroids for COVID-19 in hospitals. All patients underwent surgical treatment. Antifungal therapy (amphotericin B) was administered, and one patient received posaconazole due to a lack of efficacy of amphotericin B. The length of hospital stay ranged from 14 to 56 days. The overall 3-month survival rate of patients with rhinocerebral mucormycosis was 80%
Современные аспекты терапии беременных с гипертонической болезнью
The article discusses pregnancy course and labor outcomes in women with chronic hypertension. We divided all pregnant into two groups in dependence on the kind of antihypertensive treatment. The main group treatment was nebivalol monotherapy, the control group took combined medications in different compositions (atenolol, methyldopa, nifedipin). We revealed nebivalol therapy significantly decreased the number of gestational complications and adverse perinatal outcomes and in pregnant with chronic hypertension.В статье представлен анализ течения гестации и исходов родов у беременных, страдающих гипертонической болезнью. В зависимости от вида антигипертензивной терапии все беременные были разделены на основную и контрольную группы. Основную группу составили беременные, находящиеся на монотерапии небивололом, контрольную – женщины, получавшие комбинированную терапию в различных сочетаниях: атенолол, допегит, нифедипин. Терапия небивололом с ранних сроков гестации позволила существенно снизить частоту осложнений гестации и улучшить перинатальные исходы у беременных с гипертонической болезнью
Fragmentation and Multifragmentation of 10.6A GeV Gold Nuclei
We present the results of a study performed on the interactions of 10.6A GeV
gold nuclei in nuclear emulsions. In a minimum bias sample of 1311 interac-
tions, 5260 helium nuclei and 2622 heavy fragments were observed as Au projec-
tile fragments. The experimental data are analyzed with particular emphasis of
target separation interactions in emulsions and study of criticalexponents.
Multiplicity distributions of the fast-moving projectile fragments are inves-
tigated. Charged fragment moments, conditional moments as well as two and three
-body asymmetries of the fast moving projectile particles are determined in
terms of the total charge remaining bound in the multiply charged projectile
fragments. Some differences in the average yields of helium nuclei and heavier
fragments are observed, which may be attributed to a target effect. However,
two and three-body asymmetries and conditional moments indicate that the
breakup mechanism of the projectile seems to be independent of target mass. We
looked for evidence of critical point observable in finite nuclei by study the
resulting charged fragments distributions. We have obtained the values for the
critical exponents gamma, beta and tau and compare our results with those at
lower energy experiment (1.0A GeV data). The values suggest that a phase
transition like behavior, is observed.Comment: latex, revtex, 28 pages, 12 figures, 3tables, submitted to Europysics
Journal
The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65
Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in 2019–2020 by the Transiting Exoplanet Survey Satellite (TESS) and by the Whole Earth Blazar Telescope (WEBT) Collaboration. The 2-min cadence optical light curves provided by TESS during three observing sectors of nearly 1 month each allow us to study the fast variability in great detail. We identify several characteristic short-term time-scales, ranging from a few hours to a few days. However, these are not persistent, as they differ in the various TESS sectors. The long-term photometric and polarimetric optical and radio monitoring undertaken by the WEBT brings significant additional information, revealing that (i) in the optical, long-term flux changes are almost achromatic, while the short-term ones are strongly chromatic; (ii) the radio flux variations at 37 GHz follow those in the optical with a delay of about 3 weeks; (iii) the range of variation of the polarization degree and angle is much larger in the optical than in the radio band, but the mean polarization angles are similar; (iv) the optical long-term variability is characterized by a quasi-periodicity of about 1 month. We explain the source behaviour in terms of a rotating inhomogeneous helical jet, whose pitch angle can change in time.Accepted manuscrip
Multiwavelength behaviour of the blazar 3C 279: decade-long study from γ-ray to radio
We report the results of decade-long (2008–2018) γ-ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, Fermi and Swift data, as well as polarimetric and spectroscopic data. The X-ray and γ-ray light curves correlate well, with no delay ≳ 3 h, implying general cospatiality of the emission regions. The γ-ray–optical flux–flux relation changes with activity state, ranging from a linear to a more complex dependence. The behaviour of the Stokes parameters at optical and radio wavelengths, including 43 GHz Very Long Baseline Array images, supports either a predominantly helical magnetic field or motion of the radiating plasma along a spiral path. Apparent speeds of emission knots range from 10 to 37c, with the highest values requiring bulk Lorentz factors close to those needed to explain γ-ray variability on very short time-scales. The Mg ii emission line flux in the ‘blue’ and ‘red’ wings correlates with the optical synchrotron continuum flux density, possibly providing a variable source of seed photons for inverse Compton scattering. In the radio bands, we find progressive delays of the most prominent light-curve maxima with decreasing frequency, as expected from the frequency dependence of the τ = 1 surface of synchrotron self-absorption. The global maximum in the 86 GHz light curve becomes less prominent at lower frequencies, while a local maximum, appearing in 2014, strengthens toward decreasing frequencies, becoming pronounced at ∼5 GHz. These tendencies suggest different Doppler boosting of stratified radio-emitting zones in the jet.First author draf
Modern approaches to preservation of health at students in the course of physical education.
The analysis of the special scientific literature is conducted on issue health of economy for students, approaches and features of forming for the students of requirement in the healthy physically active way of life in the process of physical education. It is set that creation of environment, cooperant the physical and moral making healthy of students must become the strategic purpose of higher education. Also - to maintenance of health level, strengthening of health, forming of skills of healthy way of life. It is marked that education of culture of health is reduced negative action of external and internal средовых factors. The theoretical going is generalized near research of problem health of economy for the participants of educational process. Possible directions activity are rotined on realization health of saving technologies in the institute of higher. Essence, components, criteria and directions of development, is certain health of saving technologies in the process of teaching in the system of trade education. It is well-proven that development and realization of ideology and policy of economy of health of students, overcoming of crisis demographic situation, must be fixed in basis of activity of all of public organs of power. Main strategies of decision of problems of national development and safety of Ukraine are rotined, further effective socio-economic development of country
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