503 research outputs found
Developments of scientific and methodical competence of the teacher of pedagogical higher education institution of operating conditions of the educational cluster
In article the problem of development of scientific and methodical competence of the teacher of technical college of operating conditions of a regional and branch educational cluster is considered. The structure and the maintenance of the specified competence and functionality of its development is analyzed.Рассматривается проблема развития научно-методической компетентности преподавателя педагогического вуза в условиях функционирования регионально-отраслевого образовательного кластера. Анализируются структура и содержание указанной компетентности и функциональные возможности ее развития
Exclusive reaction at LHC and RHIC
We evaluate differential distributions for the four-body reaction. The amplitude for the process is calculated in the Regge
approach including many diagrams. We make predictions for possible future
experiments at RHIC and LHC energies. Very large cross sections are found which
is partially due to interference of a few mechanisms. Presence of several
interfering mechanisms precludes extraction of the elastic
scattering cross section. Absorption effects are estimated. Differential
distributions in pseudorapidity, rapidity, invariant two-pion mass,
transverse-momentum and energy distributions of neutrons are presented for
proton-proton collisions at = 500 GeV (RHIC) and = 0.9,
2.36 and 7 TeV (LHC). Cross sections with experimental cuts are presented.Comment: 22 pages, 18 figures, calculations have been corrected, new processes
added, discussion expanded in print in Phys. Rev.
SEM and AFM studies of two-phase magnetic alkali borosilicate glasses
The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples whilemagnetic iron atoms formball-shaped agglomerates. The magnetic properties of these agglomerates have been confirmed by magnetic force microscopy. Atomic force microscopy had shown that in these samples two different morphological structures, drop-like and dendrite net, are formed. The formation of dendrite-like structure is a necessary condition for production of porous magnetic glasses. The obtained results allowus to optimize the melting and heat treatment processes leading to production of porous alkali borosilicate glasses withmagnetic properties. The first results for nanocompositematerials on the basis ofmagnetic glasses containing the embedded ferroelectrics KH2PO4 demonstrate the effect of applied magnetic field on the ferroelectric phase transition. The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples whilemagnetic iron atoms formball-shaped agglomerates. The magnetic properties of these agglomerates have been confirmed by magnetic force microscopy. Atomic force microscopy had shown that in these samples two different morphological structures, drop-like and dendrite net, are formed. The formation of dendrite-like structure is a necessary condition for production of porous magnetic glasses. The obtained results allowus to optimize the melting and heat treatment processes leading to production of porous alkali borosilicate glasses withmagnetic properties. The first results for nanocompositematerials on the basis ofmagnetic glasses containing the embedded ferroelectrics KH2PO4 demonstrate the effect of applied magnetic field on the ferroelectric phase transition.DAA
NITRIC OXIDE – BIOCHEMICAL MARKER OF TUBERCULOSIS PATHOGENESIS
Role of nitric oxide in the pathogenesis of pulmonary tuberculosis has been studied in 77 patients with new infiltrate pulmonary tuberculosis and 34 patients with fibrous cavernous pulmonary tuberculosis. The level of cumulative and endogenous nitrite depended on the clinical form of tuberculosis: in infiltrate pulmonary tuberculosis patients it was within the limits of reference ranges, and in fibrous cavernous pulmonary tuberculosis patients it was significantly lower. Results of statistical analysis point out at the significant homogeneity (monofunctionality) of the set of rates, defining the level of NO metabolites in blood serum in infiltrate pulmonary tuberculosis, namely: impact of adenosine deaminase, levels of α1-protease inhibitor, ceruleoplasmin and age. On the contrary in case of fibrous cavernous pulmonary tuberculosis the diverse (multi-functional) complexes were detected including clinical blood rates providing influence on the reduction of NO level in blood. Nitric oxide in the patients with both clinical forms of tuberculosis correlated with classical markers of system inflammatory response, thus nitric oxide can be regarded as an integral component of inflammatory response with potential evaluation of prognosis of specific lesions during follow-up of changes
СУЧАСНИЙ СТАН, ПРОБЛЕМИ ТА ПЕРСПЕКТИВИ ВИКЛАДАННЯ ПЕДІАТРІЇ АНГЛОМОВНИМ СТУДЕНТАМ
The aim of the work – an analysis of the current state and experience of teaching Pediatrics to English-speaking students 4th and 5th years of study at the Department of Pediatrics No. 2 of the Kharkiv National Medical University.The main body. Teaching Pediatrics to English-speaking students requires a high level of professional training, pedagogical skills and fluency in English. In order to improve the quality of foreign students’ training, permanent search and introduction of modern innovative technologies, regular updating of guidance papers, production of manuals and textbooks taking into account international standards for the delivering of medical care for children are required.Conclusion. Reducing the number of students in groups and cohorts, advancing the material and technical resources (computerization, development of phantom classes, etc.) will improve the quality of training and mastery of practical skills.Мета роботи – аналіз сучасного стану та досвіду викладання педіатрії англомовним студентам 4-го та 5-го років навчання на кафедрі педіатрії № 2 Харківського національного медичного університету.Основна частина. Викладання педіатрії англомовним студентам вимагає високого рівня професійної підготовки, педагогічної майстерності та вільного володіння англійською мовою. Для підвищення якості підготовки іноземних студентів на кафедрі проводиться постійний пошук та впровадження сучасних інноваційних технологій, регулярне оновлення методичних матеріалів, створення навчальних посібників та підручників з урахуванням міжнародних стандартів надання медичної допомоги дітям.Висновок. Зменшення кількості студентів у групах та лекційних потоках, удосконалення матеріально-технічної бази (комп’ютеризація, розвиток фантомних класів тощо) дозволить поліпшити якість навчання та оволодіння практичними навичками
COVID-19 Features in Patients with Multiple Sclerosis: Main Approaches to Their Management, Treatment, and Vaccination
The COVID-19 pandemic calls for correct and evidence-based decisions regarding management and treatment of patients with multiple sclerosis. Information on researches, clinical cases, and recommendations for treatment of such patients during the pandemic should be classified. We report COVID-19 features in patients with multiple sclerosis, risk factors for infection and development of severe disease. We also describe management strategies for multiple sclerosis: from relapse treatment to the selection of disease-modifying therapies focusing on patients safety. We analyze the latest observational and comparative studies, clinical cases of multiple sclerosis patients vaccination and demyelinating disease onset after COVID-19 or vaccination
Analysis of the application of the optical method to the measurements of the water vapor content in the atmosphere - Part 1: Basic concepts of the measurement technique
We retrieved the total content of the atmospheric water vapor (or Integrated
Water Vapor, IWV) from extensive sets of photometric data obtained since 1995
at Lindenberg Meteorological Observatory with star and sun photometers.
Different methods of determination of the empirical parameters that are
necessary for the retrieval are discussed. The instruments were independently
calibrated using laboratory measurements made at Pulkovo Observatory with the
VKM-100 multi-pass vacuum cell. The empirical parameters were also calculated
by the simulation of the atmospheric absorption by water vapor, using the
MODRAN-4 program package for different model atmospheres. The results are
compared to those presented in the literature, obtained with different
instruments and methods of the retrieval. The reliability of the empirical
parameters, used for the power approximation that links the water vapor content
with the observed absorption, is analyzed. Currently, the total (from
measurements, calibration, and calculations) errors yield the standard
uncertainty of about 10% in the total column water vapor. We discuss the
possibilities for improving the accuracy of calibration to ~1% as indispensable
condition in order to make it possible to use data obtained by optical
photometry as an independent reference for other methods (GPS, MW-radiometers,
lidar, etc).Comment: 28 pages, 8 figures, 3 tables. In submitting to Atmospheric
Measurement Technique
Another look at scattering in the scalar channel
We set up a general framework to describe scattering below 1 GeV
based on chiral low-energy expansion with possible spin-0 and 1 resonances.
Partial wave amplitudes are obtained with the method, which satisfy
unitarity, analyticity and approximate crossing symmetry. Comparison with the
phase shift data in the J=0 channel favors a scalar resonance near the
mass.Comment: 17 pages, 5 figures, REVTe
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