Quantitative phase analysis of modified hardened cement paste

The relevance of this research is stipulated by the opportunity to control the properties of construction materials through introducing nanomodifying additives. The study of structure parameters of the crystalline phase of hardened cement paste modified by microsilica and Ts38 additives is of great scientific and applied importance

Origin of Lexical Suffixes in the Salish Languages

Lexical suffixation is an essential feature of the Salish language family. Such suffixes form closed classes of morphemes that express various types of meaning, e.g., somatisms, locatives, natural phenomena, artefacts, phytonyms, etc. Most Salish lexical suffixes are of substantive nature. However, they hardly ever correspond with free forms of substantives, be it synchronically or diachronically. The authors reviewed a number of theories concerning the origin and development of the Salish lexical suffixes. Based on the synchronic and diachronic analysis, they put forward the following hypothesis of the origin of the Salish lexical suffixes. The suffixes stared as a dependent predicative construction, eventually compressed into a morphologically-coherent model according to the following evolution scheme: dependent predication / nominalized predicate → compounding / incorporation → lexical suffix (bound morpheme). Thus, the synchronous Salish substantives are diachronically based on verbal stems with their process semantics. The study adds to the linguistic understanding of the origin of various parts of speech and the borders between substantives and verbs

DIGITAL EDUCATIONAL ENVIRONMENT AS A TOOL OF SYSTEM CHANGES IN THE TEACHER’S PROFESSIONAL ACTIVITY

Purpose: Social and cultural prerequisites of Russia’s transition to an open information society have predetermined new requirements for graduates of modern educational organizations, ready for communicative activities in a digital educational environment. Informatization of education is characterized by increasing virtualization of the educational process and, as a consequence, the predominance of fragmented thinking, and increase in the gap between traditional and innovative educational technologies. Methodology: The basis of the digital educational environment in the context of the use of knowledge management technologies can be specialized knowledge management systems that combine knowledge of related scientific disciplines, which should provide integration, accumulation, and support, as well as the organization of access to knowledge of the educational environment. A distinctive feature of the development of mankind at the present stage is the transition to information society in which information and information processes are becoming one of the most important components of human life and society. Result: The development of the global process of informatization of society leads to the formation of not only the new information environment for people but also new, information way of their life and professional activities. Many researchers as the most acute problem of modern education called the mismatch of software, including for educational purposes, to high technical characteristics of computers, resulting in extremely low efficiency of computer use in training. Critically assessing the effectiveness of the existing software of the educational process and the ways of its development, we see the prospects for a radical change in the situation in the orientation to the use of knowledge management technologies that use software products that can be changed, adapting to the needs of the user and, in particular, to the didactic tasks of training. Applications: This research can be used for universities, teachers, and students. Novelty/Originality: In this research, the model of Digital Educational Environment as a Tool of System Changes in the Teacher’s Professional Activity is presented in a comprehensive and complete manner

The effect of post-procedure care on the effectiveness of skin restoration and correction of side effects after aesthetic procedures

Introduction. The  duration of  the  skin  healing period and the  final result of  cosmetic procedures are influenced not only by the treatment protocol and the type of therapy chosen, but also by skin care in the early post-treatment period.Aim of study. Тo study the effectiveness and safety of the use of the topical agent “Traumeel® Cosmo gel” in patients in the early post-treatment period after cosmetic procedures, accompanied by traumatization of the skin.Materials and methods. 20 female patients aged 19 to 49 years, who sought help for the correction of age-related skin changes, acne vulgaris, scarring of the skin and received the procedure of cosmetological therapy, accompanied by damage to the skin. All patients were assigned to group 1 (20 patients). Depending on the method of cosmetological treatment, the external remedy “Traumeel® Cosmo gel” was applied from 2 to 3 times a day at the treated area for 7 ± 2 days.Results. According to the patients’ assessment of the effectiveness and comfort of the treatment, the use of the “Traumeel® Cosmo gel” in  the  early post-treatment period is an effective and safe method of  regenerative therapy of  the  skin  and has a  high therapeutic effectiveness, which was confirmed by the results of the study.Conclusions. Based on the results of the evaluation of the effectiveness by the doctor and patients, as well as the evaluation of the monitoring of the dermatological status, the quality of life index, the patient’s subjective assessment of their response to therapy, consider the therapeutic effectiveness to be high, significantly contributing to the improvement of the quality of life

Control of microimpurities emitted from polymer construction materials based on polyvinyl chloride

The aim of this article is to improve the degree control of microimpurities emitted from polymeric construction materials into the environment. It is proposed to do this through the modification of the physicochemical nature of the original (source) sorbent and, as a consequence, the improvement of the sorption capacity and the extraction ratio of highly volatile toxic substances. The proposed concentrator columns can be widely used in the analysis of microimpurities of polar organic substances released into the environment from polymeric construction materials based on polyvinyl chloride

Control of microimpurities emitted from polymer construction materials based on polyvinyl chloride

The aim of this article is to improve the degree control of microimpurities emitted from polymeric construction materials into the environment. It is proposed to do this through the modification of the physicochemical nature of the original (source) sorbent and, as a consequence, the improvement of the sorption capacity and the extraction ratio of highly volatile toxic substances. The proposed concentrator columns can be widely used in the analysis of microimpurities of polar organic substances released into the environment from polymeric construction materials based on polyvinyl chloride

Electron-ion plasma modification of Al-based alloys

The paper reports on the study where we analyzed the surface structure and strength properties of coated Al alloys modified by electron-ion plasma treatment. The Al alloys were deposited with a thin (≈0.5 μm) TiCu film coating (TiCu-Al system) and with a hard TiCuN coating (TiCuN–AlSi system) on a TRIO vacuum setup in the plasma of low-pressure arc discharges. The temperature fields and phase transformations in the film–substrate system were estimated by numerical simulation in a wide range of electron energy densities (5–30 J/cm2) and pulse durations (50–200 μs). The calculations allowed us to determine the threshold energy density and pulse duration at which the surface structure of the irradiated Al-based systems is transformed in a single-phase state (solid or liquid) and in a two-phase state (solid plus liquid). The elemental composition, defect structure, phase state, and lattice state in the modified surface layers were examined by optical, scanning, and transmission electron microscopy, and by X-ray diffraction analysis. The mechanical characteristics of the modified layers were studied by measuring the hardness and Young’s modulus. The tribological properties of the modified layers were analyzed by measuring the wear resistance and friction coefficient. It is shown that melting and subsequent high-rate crystallization of the TiCu–Al system makes possible a multiphase Al-based surface structure with the following characteristics: crystallite size ranging within micrometer, microhardness of more than 3 times that in the specimen bulk, and wear resistance ≈1.8 times higher compared to the initial material. Electron beam irradiation of the TiCuN–AlSi system allows fusion of the coating into the substrate, thus increasing the wear resistance of the material ≈2.2 times at a surface hardness of ∼14 GPa

To the question of the dual education system introduction in the colleges of Kazakhstan

В статье рассматриваются вопросы внедрения дуального обучения. Описаны истоки возникновения дуальной технологии обучения. Затронуты законодательные документы Республики Казахстан, в которых отражается сущность дуального обучения и вопросы внедрения в систему образования.The article deals with the problem of the dual education system introduction. The article describes the origin of the dual education system. Legislative documents of the Republic of Kazakhstan, concerned with the content of the dual education system and the problem of the dual education system introduction, are touched upon in the article

Tribological properties of hydraulic fluids modified by peat-based additives

The paper presents physicochemical investigations of the structure and properties of a nano-modifier synthesized from peat, the local raw material subjected to pyrolysis in air-free conditions. This nano-modifying additive is a combination of various forms of nanocarbon and polar and non-polar adsorbing materials such as silica (SiO[2]), calcium carbonate (CaCO[3]) and carbon (C). Different nanocarbon forms (nanotubes, fullerenes, nanodiamonds, nanofiber, nanodispersed carbon) used in different proportions with micro and macro peat components give multifunctional properties to the synthesized nano-modifier and the ability to positively change tribological properties of hydraulic fluids and oil lubricants. Test results of type TMT-600 show that its different percentage is required to modify tribological properties of the steel tribocouple under different loading conditions. At 0.5 wt.% content of this nano-modifier, stabilization of the friction ratio and an increase of seizure load are observed