Relativistic Model of Detonation Transition from Neutron to Strange Matter

We study the conversion of neutron matter into strange matter as a detonation wave. The detonation is assumed to originate from a central region in a spherically symmetric background of neutrons with a varying radial density distribution. We present self-similar solutions for the propagation of detonation in static and collapsing backgrounds of neutron matter. The solutions are obtained in the framework of general relativistic hydrodynamics, and are relevant for the possible transition of neutron into strange stars. Conditions for the formation of either bare or crusted strange stars are discussed.Comment: 16 pages, 4 figures. Submitted to IJMP

Special Features of Chemical and Mineralogical Composition and Technological Properties of High-ferriferous Wocheinite

This paper presents the comprehensive study findings of the high-ferriferous wocheinite (a bauxite variety) of Timan deposit to evaluate the possibility of its application in the aluminosilicate ceramics production. The study was carried out by chemical, X-ray phase and thermal analysis on two samples before and after calcination. According to the obtained data, investigated material is of practical interest as a hardening and mineralizing additive to produce high-strength aluminosilicate ceramics. The strength improving ceramic structures, based on clay and bauxite raw materials mixture, is possible due to the binding of silica, which is released from the structure of kaolinite by aluminum oxide as a product of boehmite and hydrargillite dehydration to the secondary mullite

The essence of the conceptual model of service enterprises modernization

The multiplicity of definitions of modernization due to the fact that the very concept of “modernization” has very deep roots, related to the development of human civilization on its inherent social and economic laws. One of the most important laws is the development of the modernization process. Currently, the modernization process scale covers a wide field of human activity that initiates improvement of conceptual provisions of modernization. Modernization theory emerged in the 60s of XX century in the struggle for influence in the third world. Only by the middle of the 80s, when there was accumulated both positive and crisis experience a large number of third world countries that have implemented a variety of projects (both in the West and the socialist pattern) formed the theoretical concepts that are suitable to support a relatively non-ideological modernization politician. The result was the understanding of the transformation of the concept of “modernization” in the subject of analysis for representatives of disciplines, from different sides of the practice of “new” countries and analyse the reasons for successes and failures of the relevant development projects. © 2016, Econjournals. All rights reserved

Alienation and the search for the meaning of life: psychological portrait of a modern teenager

Introduction. The problem of alienation in adolescence is relevant because it can lead to serious consequences such as mental health problems, social isolation and a negative impact on future relationships, so its solution is an important task for psychologists and society as a whole. The purpose of the study is to study the psychological alienation and meaningfulness of the life of adolescents. Materials and methods. The study of the psychological alienation of adolescents in the aspect of the meaningfulness of life was carried out on the basis of a comprehensive school in the city of Yekaterinburg. It was attended by 120 teenage students of the ninth grade (68 boys, 52 girls), the average age is 15 years. The following methods were used in the study: "Test for alienation" (method of subjective feeling of alienation by D. Russell and M. Ferguson); “Test of life-meaning orientations” (method of D. A. Leontiev’s SJO); Subjective assessment of interpersonal relations (S.V. Dukhnovsky). Statistical methods of data processing: methods of descriptive statistics; Mann-Whitney U-test, Kruskal-Wallis H-test, Spearman's rank correlation test, SPSS Statistics 22.0 software package. Research results. The descriptive analysis made it possible to identify the problem areas of the study, they were a high level of alienation in 28.6% in the male and 15.6% in the female groups of adolescents. The lack of formation of meaningful life orientations in more than 28.60% in the male and 15.6% in the female groups, adolescents' dissatisfaction with the nature of interpersonal relations on the scales "Tension of relations", "Alienation in relations", "Conflict in relations" and "Aggression in relations" are expressed in 15.6%, most likely this is due to a high level of alienation. According to the results of a comparative analysis, a tendency to difference was found in the male and female groups of adolescents. Differences were found on the following scales: "Alienation in relationships" (p<0,1), "Conflict in relationships" (p<0,1), "Aggression in relationships" (p<0,1). The indicators are higher in the male group of adolescents; young men are characterized by a lack of trust, understanding, and intimacy. They are cautious about establishing close relationships and choosing those with whom they build deeper emotional bonds, and they tend to maintain control. This may be due to age characteristics, the conditions of upbringing, the unformed culture in interpersonal relations (competition) between boys. Conclusion. Addressing the problem of alienation requires a comprehensive approach and cooperation from parents, schools and other institutions that interact with adolescents. It is important to create a favorable social environment in which adolescents can develop social skills, find like-minded people and receive the necessary support and understanding. © 2023 LLC Ecological Help. All rights reserved

PSYCHOLOGICAL DETERMINANTS OF STUDENTS’ PROJECT ACTIVITY

Determination of psychological components of project activity is an important step towards the formation of a high level of preparation of participants for conducting innovative activities. The psychological determinants of project activity that we study allow us to systematically influence the improvement of project activities. The process of improving educational practice from various angles of its activity is a priority, given the current challenges of reality.Детерминация психологических компонентов проектной деятельности является важным шагом на пути к формированию высокого уровня подготовки участников к ведению инновационной деятельности. Изучаемые нами психологические детерминанты проектной деятельности позволяют системно воздействовать на совершенствование ведения проектной деятельности. Процесс совершенствования образовательной практики с различных углов ее деятельности является приоритетной задачей, учитывая современные вызовы действительности

Combining livestock production information in a process-based vegetation model to reconstruct the history of grassland management

Grassland management type (grazed or mown) and intensity (intensive or extensive) play a crucial role in the greenhouse gas balance and surface energy budget of this biome, both at field scale and at large spatial scale. However, global gridded historical information on grassland management intensity is not available. Combining modelled grass-biomass productivity with statistics of the grass-biomass demand by livestock, we reconstruct gridded maps of grassland management intensity from 1901 to 2012. These maps include the minimum area of managed vs. maximum area of unmanaged grasslands and the fraction of mown vs. grazed area at a resolution of 0.5° by 0.5°. The grass-biomass demand is derived from a livestock dataset for 2000, extended to cover the period 1901–2012. The grass-biomass supply (i.e. forage grass from mown grassland and biomass grazed) is simulated by the process-based model ORCHIDEE-GM driven by historical climate change, rising CO2 concentration, and changes in nitrogen fertilization. The global area of managed grassland obtained in this study increases from 6.1  ×  106 km2 in 1901 to 12.3  ×  106 km2 in 2000, although the expansion pathway varies between different regions. ORCHIDEE-GM also simulated augmentation in global mean productivity and herbage-use efficiency over managed grassland during the 20th century, indicating a general intensification of grassland management at global scale but with regional differences. The gridded grassland management intensity maps are model dependent because they depend on modelled productivity. Thus specific attention was given to the evaluation of modelled productivity against a series of observations from site-level net primary productivity (NPP) measurements to two global satellite products of gross primary productivity (GPP) (MODIS-GPP and SIF data). Generally, ORCHIDEE-GM captures the spatial pattern, seasonal cycle, and interannual variability of grassland productivity at global scale well and thus is appropriate for global applications presented here

Measuring the free fall of antihydrogen

After the first production of cold antihydrogen by the ATHENA and ATRAP experiments ten years ago, new second-generation experiments are aimed at measuring the fundamental properties of this anti-atom. The goal of AEGIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is to test the weak equivalence principle by studying the gravitational interaction between matter and antimatter with a pulsed, cold antihydrogen beam. The experiment is currently being assembled at CERN's Antiproton Decelerator. In AEGIS, antihydrogen will be produced by charge exchange of cold antiprotons with positronium excited to a high Rydberg state (n > 20). An antihydrogen beam will be produced by controlled acceleration in an electric-field gradient (Stark acceleration). The deflection of the horizontal beam due to its free fall in the gravitational field of the earth will be measured with a moire deflectometer. Initially, the gravitational acceleration will be determined to a precision of 1%, requiring the detection of about 105 antihydrogen atoms. In this paper, after a general description, the present status of the experiment will be reviewed

Psychological mechanisms of paternity implementation

Рассматривается участие отца в воспитании ребенка. Предпринята попытка определения механизмов реализации отцовства с точки зрения деятельностного подхода. Выделены внешние и внутренние условия формирования воспитательной деятельности отца. Представленное исследование демонстрирует особенности реализации отцовства посредством оценки мотивации родителя, его установок, родительского отношения и стиля воспитания детей различного возраста.Paternity as an activity connected with child upbringing is considered in the article. An attempt to determine the mechanisms of paternity implementation from the point of view of the activity approach is undertaken. External and internal conditions of forming effective father's upbringing activity are allocated. The present research demonstrates the peculiarities of paternity implementation by means of estimation of parental motives, directives, parental attitude model and style of upbringing children of different age

The influence of important adults to the formation of health value for school children

The task of forming a stable system of life priorities, in which one of the leading places rightfully belongs to the values of a healthy lifestyle, its active implementation and dissemination, becomes vital, especially if seen from the angle of the increase in provocative influences on the younger generation, the loosening up of vital values, the creation of conditions for the formation of the destruction of the individual. In this regard, both theory and practice face the problem of the lack of psychological and pedagogical support of the process of forming the value of the healthy life expectancy of students and the increase of the psychological and pedagogical competence of parents and teachers in terms of preserving the child's physical and mental health. The study involved 357 students of 9-11 grades: 146 boys and 211 girls aged 15-17, 110 parents, 18 teachers. The data of the research have shown that the value of a healthy lifestyle, both for boys and girls of senior school age is important, but not the dominant one. The condition for the formation of a healthy lifestyle is the environment of adolescents and the presence of a number of individuals who are examples for imitation. Introduction of the technology aimed at the formation of the value of healthy life style (HLS) the researchers managed to provide complete information on the role of health and its components, which contributed to a rethinking of life values and motives of actions. © 2018 Transilvanian Association for the Literarure and Culture of Romanian People (ASTRA)