80 research outputs found
Liquid metals for solar power systems
No full textThe use of liquid metals in solar power systems is not new. The receiver tests with liquid sodium in the 1980s at the Plataforma Solar de Almería (PSA) already proved the
feasibility of liquid metals as heat transfer fluid. Despite the high efficiency achieved with that receiver, further investigation of liquid metals in solar power systems was stopped due to a sodium spray fire. Recently, the topic has become interesting again and the gained experience
during the last 30 years of liquid metals handling is applied to the concentrated solar power community. In this paper, recent activities of the Helmholtz Alliance LIMTECH concerning liquid metals for solar power systems are presented. In addition to the components and system
simulations also the experimental setup and results are included
Система отбора найма персонала в сфере ресторанного бизнеса
No full textСтатья посвящена особенностям формирования системы подбора персонала ресторана, а также основным критериям найма сотрудников. Автором рассматриваются особенности кадровой политики и ее влияние на рекрутинг персонала. Особое внимание уделяется мероприятиям, направленным на удовлетворение мотивации сотрудников.
The article is devoted to the peculiarities of the formation of the system of selection of staff to the restaurant, as well as the basic criteria for the selection of staff. The author considers the peculiarities of personnel policy and its impact on the recruitment of personnel. Special attention is paid to the activities aimed at satisfying the motivation of employees
Non-traditional Methods in Speech Therapy Assistance to Preschoolers with Speech Impairments
No full textThe article substantiates the role of non-traditional methods of work in speech therapy work with preschoolers. The content of the most effective non-traditional methods for eliminating speech disorders in preschoolers is reveale
Stability and invariant norms of arbitrary sets of 2x2 matrices
No full textInvariant norms, also called Barabanov norms, are defined in for any
compact family of matrices. They correspond to the
linear switching system, which is a differential equation , where for each . The invariant norm
identifies the trajectories of the fastest asymptotic growth as . It also solves the stability problem. This norm is difficult to
construct even for a pair of matrices. We show that in case the invariant
norm can be found explicitly for every compact matrix family . If
does not contain a dominant matrix with a real spectrum, then this
norm is always unique (up to a multiplier) and is , otherwise, there may
be infinitely many norms. All of them can be found and classified
Foraminifera of the Paleogene and Neogene of the Auminzatau Mountains (Central Kyzylkum)
No full textThis article is the result of a study of Paleogene and Neogene boundary deposits based on the foraminifers of the Auminzatau Mountains. The urgency of setting these works was due to the fact that the Oligocene-Early Miocene sediments due to the paucity of faunal remains in them, did not have sufficient paleontological substantiation. The paleontological material collected and studied by the author of the article made it possible to determine the boundary between the Paleogene and Neogene based on foraminifers. The need to subdivide the Oligocene-Early Miocene deposits on the territory of the Auminzatau Mountains (Central Kyzylkum) is dictated by the fact that the current state of the validity of their subdivision and correlation does not provide the necessary accuracy of comparison with the International Stratigraphic Scal
Comparison of rems, news and qsofa scales in mortality prediction for patients with confirmed sars-cov-2 infection upon admission to icu: A retrospective observational trial
No full textObjective. To compare REMS, NEWS, qSOFA scales in predicting mortality for patients with confirmed SARS-CoV-2 infection upon admission to ICU. Material and methods. A retrospective study included 132 patients with confirmed SARS-CoV-2 infection. Results. REMS (0.917 [95% CI 0.834—0.967]) and NEWS (0.904 [95% CI 0.817—0.959]) scales were significant for mortality prediction while qSOFA scale (0.866 [95% CI 0.771—0.932]) was less effective. All scales showed good calibration. Conclusion. REMS and NEWS scales showed good resolution and calibration. These scales may be used for prediction of mortality in patients with confirmed SARS-CoV-2 infection upon admission to ICU
Validity of Qsofa, news and rems express-scales in patients with COVID-19 (Virus not identified): A retrospective observational study
No full textObjective. To compare the informative value of the Quick Sequential scales (Sepsis-Related Organ Failure Assessment, qSOFA), National Early Warning Score (NEWS) and Rapid Emergency Medicine Score (REMS) in patients with COVID-19 (no virus iden-tified) admitted to ICU. Material and methods. A single-center retrospective observational study included 100 medical records of patients hospitalized to the Regional Clinical Hospital 2 in April — July 2020. Mean age of patients was 73.2 (range 37.0—94.0) years. ROC analysis of the qSOFA, NEWS and REMS scales regarding prediction of mortality was performed. Results. AUC for the NEWS scale (0.887 [95% CI 0.805—0.942]) was significantly higher compared to the qSOFA (0.802 [95% CI 0.708—0.877]) and REMS scales (0.836 [95% CI 0.746—0.904]) in prediction of mortality in patients with COVID-19 (no virus identified). There were significant differences between AUC for the NEWS and qSOFA scales (p=0.0032), while these values were similar for NEWS and REMS (p=0.2117), REMS and qSOFA (p=0.4669). Conclusion. NEWS, qSOFA and REMS scales showed good calibration and resolution. The NEWS scale has a high statistical accuracy for resolution data, qSOFA — for calibration data
Author as a corporal subject of a. Huxley’s works
No full textThe relevance of the problem studied in the article is conditioned by the fact that A. Huxley’s works are regarded in the context of the modern theory of mimesis for the first time. The aim of the article is to analyze the author’s problem as a corporal subject of Huxley’s works in the context of the modern theory of mimesis. The leading method for studying this problem is the analytical anthropology of literature which allows describing mimetic features and the author’s image as a corporal subject of Huxley’s works. The main attention in the article is paid to the artistically embodied forms of the author’s corporality. The article may be useful for philologists, philosophers, for developing courses and seminars on the history of the English literature, and also within courses on the anthropology of literature. © 2016 Falaleeva et al
Author as a corporal subject of a. Huxley’s works
No full textThe relevance of the problem studied in the article is conditioned by the fact that A. Huxley’s works are regarded in the context of the modern theory of mimesis for the first time. The aim of the article is to analyze the author’s problem as a corporal subject of Huxley’s works in the context of the modern theory of mimesis. The leading method for studying this problem is the analytical anthropology of literature which allows describing mimetic features and the author’s image as a corporal subject of Huxley’s works. The main attention in the article is paid to the artistically embodied forms of the author’s corporality. The article may be useful for philologists, philosophers, for developing courses and seminars on the history of the English literature, and also within courses on the anthropology of literature. © 2016 Falaleeva et al
Sedimentation-resistant and moderately expanding grouting composition
No full textThe results of the conducted studies allow us to conclude that an increase in the number of micelles per unit volume of the grouting solution will lead to an increase in its sedimentation stability. The desired effect can be achieved by increasing the concentrations of surfactants in the mixing fluid or by introducing an electrolyte. Since the presence of sites with adsorbed surfactant additive on the surface of the dispersed phase particles significantly changes the conditions for the formation of phase contacts, which, accordingly, will affect the properties of the hardening grouting system
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