Phraseology and institutional discourse: Angela Merkel

Linguosemiotic approach to the study of phraseological units used by an institutional language personality. The language personality of a politician, in particular Angela Merkel, is considered as an active mechanism for the functioning of institutional discours

Multi-mode quasi-periodic pulsations in a solar flare

Context. Quasi-periodic pulsations (QPP) of the electromagnetic radiation emitted in solar and stellar flares are often detected in microwave, white light, X-ray, and gamma-ray bands. Mechanisms for QPP are intensively debated in the literature. Previous studies revealed that QPP may manifest non-linear, non-stationary and, perhaps, multi-modal processes operating in flares. Aims. We study QPP of the microwave emission generated in an X3.2-class solar flare on 14 May, 2013, observed with the Nobeyama Radioheliograph (NoRH), aiming to reveal signatures of the non-linear, non-stationary, and multi-modal processes in the signal. Methods. The NoRH correlation signal obtained at the 17 GHz intensity has a clear QPP pattern. The signal was analysed with the Hilbert-Huang transform (HHT) that allows one to determine its instant amplitude and frequency, and their time variation. Results. It was established that the QPP consists of at least three well-defined intrinsic modes, with the mean periods of 15, 45, and 100 s. All the modes have quasi-harmonic behaviour with different modulation patterns. The 100 s intrinsic mode is a decaying oscillation, with the decay time of 250 s. The 15 s intrinsic mode shows a similar behaviour, with the decay time of 90 s. The 45 s mode has a wave-train behaviour. Conclusions. Dynamical properties of detected intrinsic modes indicate that the 100 s and 15 s modes are likely to be associated with fundamental kink and sausage modes of the flaring loop, respectively. The 100 s oscillation could also be caused by the fundamental longitudinal mode, while this interpretation requires the plasma temperature of about 30 million K and hence is not likely. The 45 s mode could be the second standing harmonics of the kink mode

Fast magnetoacoustic wave trains in magnetic funnels of the solar corona

Context: Fast magneto-acoustic waves are highly dispersive in waveguides, so they can generate quasi-periodic wave trains if a localised, impulsive driver is applied. Such wave trains have been observed in the solar corona and may be of use as a seismological tool since they depend upon the plasma structuring perpendicular to the direction of propagation. Aims. We extend existing models of magnetoacoustic waveguides to consider the effects of an expanding magnetic field. The funnel geometry employed includes a field-aligned density structure. Methods: We performed 2D numerical simulations of impulsively generated fast magneto-acoustic perturbations. The effects of the density contrast ratio, density stratification, and spectral profile of the driver upon the excited wave trains were investigated. Results: The density structure acts as a dispersive waveguide for fast magneto-acoustic waves and generates a quasi-periodic wave train similar to previous models. The funnel geometry leads to generating additional wave trains that propagate outside the density structure. These newly discovered wave trains are formed by the leakage of transverse perturbations, but they propagate upwards owing to the refraction caused by the magnetic funnel. Conclusions: The results of our funnel model may be applicable to wave trains observed propagating in the solar corona. They demonstrate similar properties to those found in our simulations

Light scattering and localization in an ultracold and dense atomic system

The quantum optical response of high density ultracold atomic systems is critical to a wide range of fundamentally and technically important physical processes. These include quantum image storage, optically based quantum repeaters and ultracold molecule formation. We present here a microscopic analysis of the light scattering on such a system, and we compare it with a corresponding description based on macroscopic Maxwell theory. Results are discussed in the context of the spectral resonance structure, time-dependent response, and the light localization problem

Efficiency results of the project to attract applicants to the medical-preventive faculty

The article describes the result of organizing medical quests and quizzes for students from specialized biomedical classes by students of the Ural State Medical University to increase the motivation for choosing the profession of a medical doctor.В статье описаны результаты проведения медицинских квестов и квизов для абитуриентов из профильных медико-биологических классов студентами Уральского государственного медицинского университета для повышения мотивации выбора профессии врача-лечебника

Anaemia in chronic heart failure

The article deals with a clinical case of progressive chronic heart failure in a patient with coronary artery disease on the background of anemic syndrome, which has been fatal. Anemia in CHF is a predictor of death, so it must be identified and adequately treated.В статье рассматривается клинический случай прогрессирующей хронической сердечной недостаточности у больного с ИБС на фоне анемического синдрома, который привел к летальному исходу. Анемия при ХСН является предиктором летального исхода, поэтому ее надо выявлять и адекватно лечить

Anaemia in chronic heart failure

The article deals with a clinical case of progressive chronic heart failure in a patient with coronary artery disease on the background of anemic syndrome, which has been fatal. Anemia in CHF is a predictor of death, so it must be identified and adequately treated.В статье рассматривается клинический случай прогрессирующей хронической сердечной недостаточности у больного с ИБС на фоне анемического синдрома, который привел к летальному исходу. Анемия при ХСН является предиктором летального исхода, поэтому ее надо выявлять и адекватно лечить

Student scientific community and its activities during pandemic and distance education

In this work, various aspects of distance learning (DD) of medical university students and the activities of the student scientific community (SNA) during the pandemic are studied. General data are given on the peculiarities of the educational process, as well as on the experience of introducing an electronic educational environment into it - «Microsoft Teams.» The purpose of the work was an attempt to study some aspects of distance learning in this new and difficult period for the university. The online activity of SNA participants was studied, followed by an assessment of their success; determining the ratio of circles to the DO system; identified the main negative aspects associated with this form of training. The obtained data are of interest to employees of various departments of medical universities and their scientific circlesАннотация. В данной работе изучаются различные аспекты дистанционного обучения (ДО) студентов медицинского вуза и деятельности студенческого научного кружка (СНК) в период пандемии. Приводятся общие данные об особенностях учебного процесса, а также об опыте внедрения в него электронной образовательной среды – «Microsoft Teams». Целью работы стала попытка изучить некоторые аспекты дистанционного обучения в этот новый и непростой для вуза период. Изучалась онлайн-активность участников СНК, с последующей оценкой их успехов; определяли отношение кружковцев к системе ДО; выявляли основные негативные моменты, связанные с подобной формой обучения. Полученные данные представляют интерес для сотрудников различных кафедр медицинских вузов и их научных кружков