THE DEGREE OF EFFECTIVENESS OF DISTANCE LEARNING IN LIGHT OF ‎THE OUTBREAK OF THE CORONA VIRUS FROM THE POINT OF VIEW OF ‎STUDENTS IN HIGHER EDUCATION INSTITUTIONS IN BEERSHEBA

The study aims to identify the degree of effectiveness of distance learning in light of ‎Covid-19 outbreak from the point of view of students in higher education institutions ‎in Beersheba. In this study, the researcher used the descriptive approach through a ‎questionnaire that was given to (150) students in higher education institutions in ‎Beersheba. The students were chosen randomly, and the validity of the study tool was ‎verified by presenting it to a group of arbitrators, and its stability was verified, as the ‎value of Cronbach's alpha was (94.4%), which has a high degree of stability, and ‎appropriate statistical methods were used for: Reaching the results The results were as ‎follows: ‎ ‎1.‎ The degree of effectiveness of distance learning in light of the outbreak of the ‎Corona virus from the point of view of students in higher education institutions in ‎Beersheba region came to a medium degree.‎ ‎2.‎ The degree of continuity of distance learning in light of the outbreak of the Corona ‎virus from the point of view of students in higher education institutions in Beersheba ‎region came to a medium degree.‎ ‎3.‎ The degree of e-learning obstacles from the point of view of students in higher ‎education institutions in Beersheba region came to a medium degree.‎ ‎4.‎ The degree of interaction of faculty members with distance education in light of the ‎Corona crisis from the point of view of students in higher education institutions in ‎Beersheba region came to a medium degree.‎ ‎5.‎ The degree of students' interaction with distance learning in light of e-learning from ‎the point of view of students in higher education institutions in Beersheba region ‎came to a high degree.‎ ‎6.‎ There are statistically significant differences in the responses of the study sample ‎members towards the degree of effectiveness of distance learning in light of the ‎outbreak of the Corona virus from the point of view of students in higher education ‎institutions in Beersheba region due to the gender variable, and the differences were ‎in favor of females versus males.‎ ‎7.‎ There are differences in the average responses of the sample members about the ‎degree of effectiveness of distance learning in light of the outbreak of the Corona ‎virus from the point of view of students in higher education institutions in Beersheba ‎region due to the variable of the teaching stage in the college in favor of those ‎studying a teaching certificate versus those studying a first and a second title.‎ ‎8.‎ There are no differences in the average responses of the sample members about the ‎degree of effectiveness of distance learning in light of the outbreak of the Corona ‎virus from the point of view of students in higher education institutions in Beersheba ‎region due to the variable of the year of study in the college.‎

Robust Stabilization via Super-Stable Systems Techniques

In this paper, we propose a direct method for the synthesis of robust systems operating under parametric uncertainty of the control plant model. The developed robust control procedures are based on the assumption that the structural properties of the nominal system are conservated over the entire range of parameter changes. The invariant-to-parametric-uncertainties transformation of the initial model to a regular form makes it possible to use the concept of super-stable systems for the synthesis of a stabilizing feedback. It is essential that the synthesis of super-stable systems is carried out not on the basis of assigning eigenvalues to the matrix of the close-loop system, but in terms of its elements. The proposed approach is applicable to a wide class of linear systems with parametric uncertainties and provides a given degree of stability.

Theoretical Study on Compliance and Stability of Active Gas-Static Journal Bearing with Output Flow Rate Restriction and Damping Chambers

The design is considered and theoretical research of operability of the active radial gas-static bearing with restrictors of output flow rate in the form of mobile rings with an elastic supports and the dampers working by Helmholtz acoustic resonator principle is done. The mathematical model of the bearing dynamics and method of calculating its degree of stability are developed. The device is steady against vibrations; it has smaller power consumption compared to the known devices with input regulators, a zero and negative compliance of a gas-lubricated film.

Exogenous factors of memory formation about the great soviet era in contemporary Russia

This article is devoted to the analysis of exogenous factors in the formation of the historical memory of Russian society about the Soviet era. The author refers to those components of the Russian information and cultural space that are created and broadcast into the consciousness of Russian society with direct influence and interest of foreign entities external to Russia. On the basis of facts and texts, conclusions are made about the systematic and consistent nature of attempts to influence the historical memory of Russian society in order to radically transform Russian national-historical consciousness and a sense of historical identity. The diversity of such effects is also noted. Despite the long and cumulative nature of attempts at external influence on the Russian memorial culture and social memory, a high degree of stability of the collective memory of Russian society should be stated. Not least, this is achieved thanks to the thoughtful historical policy of the Russian state over the past 15-20 years.

ENGINEERING GEOLOGICAL AND GEOTECHNICAL CHARACTERISTICS OF LANDSLIDE IN GORNJI HRGOVI, MUNICIPALITY OF SREBRENIK

Natural disasters during May 2014 caused a flood of water outside the unregulated bed of the river Tinja in the local area of Gornji Hrgovi. The flood effect affected the undermining and destruction of the foot part of the slope, reactivation and regressive development of the landslide, which was manifested by further secondary "breaking" of the sliding body towards the hypsometrically top part of the slope and intersection of the primary water pipeline. Gravitational displacement of the colluvial material resulted in significant degradation of the agricultural land surface in the central part of the unstable slope, while in the accumulation zone the accumulated slide mass destroyed the earth road communication. Based on the conducted geotechnical researches, determined engineering-geological and hydrogeological composition and properties of the terrain, the zoning of the terrain according to the degree of stability was performed, important recommendations and conditions of the landslide remediation method were presented.

Cluster Design and Optimization of SWIPT-Based MEC Networks with UAV Assistance

In recent years, service isolation and service miniaturization have become very popular. The large services are dismantled into multiple low-cost and simple small services to improve the scalability and disaster tolerance of the entire services. A service network composed of unmanned aerial vehicles (UAVs) and MEC servers is proposed in this paper, which aims at decoupling multiple services of the SWIPT-MEC network. In this network, UAVs take charge of energy transmission and calculation task scheduling and MEC servers are focused on task calculation. To meet the resource requirements of the ground nodes (GNs) in the network, we designed a distributed iterative algorithm to solve the resource allocation decision problem of GNs and used the modified expert bat algorithm to complete the UAV’s trajectory planning in a two-dimensional space. The results show that the algorithm can formulate a more fair resource allocation strategy, and its performance is improved by 7% compared with the traditional bat algorithm. In addition, the algorithm in this paper can also adapt to changes in task length and has a certain degree of stability.

An analysis on Quantum mechanical Stability of Regular Polygons on a Point Base Using Heisenberg Uncertainty Principle

It is a well-known fact in physics that classical mechanics describes the macro-world, and quantum mechanics describes the atomic and sub-atomic world. However, principles of quantum mechanics, such as Heisenberg’s Uncertainty Principle, can create visible real-life effects. One of the most commonly known of those effects is the stability problem, whereby a one-dimensional point base object in a gravity environment cannot remain stable beyond a time frame. This paper expands the stability question from 1- dimensional rod to 2-dimensional highly symmetrical structures, such as an even-sided polygon. Using principles of classical mechanics, and Heisenberg’s uncertainty principle, a stability equation is derived. The stability problem is discussed both quantitatively as well as qualitatively. Using the graphical analysis of the result, the relation between stability time and the number of sides of polygon is determined. In an environment with gravity forces only existing, it is determined that stability increases with the number of sides of a polygon. Using the equation to find results for circles, it was found that a circle has the highest degree of stability. These results and the numerical calculation can be utilized for architectural purposes and high-precision experiments. The result is also helpful for minimizing the perception that quantum mechanical effects have no visible effects other than in the atomic, and subatomic world. Keywords: Quantum mechanics, Heisenberg Uncertainty principle, degree of stability, polygon, the highest degree of stability

Analysing intra-party power: Swedish selection committees over five decades

Unlike political parties in many other countries, Swedish ones have not adopted more inclusive methods for choosing their election candidates and party leaders. While the party congress formally selects important party offices, the process is managed, prior to the formal vote, by a selection committee vested with the task of filtering the pool of potential leaders and proposing one of them as the new leader. In this article, we survey the composition of these selection committees over time to investigate the extent to which change has taken place. Specifically, we investigate whether the composition of these powerful committees, which decide who joins the ranks of the country’s political leaders, has developed over time in relation to what prominent theories of intra-party power might lead us to expect. We derive testable expectations from prominent conceptualisations of intra-party power and apply these empirically. Specifically, we study the composition of party selection committees in Sweden over 50 years, 1969–2019. In total, this includes 40 different selection committees and almost 400 individuals. Contrary to conventional wisdom on intra-party power relations, the empirical analysis reveals a surprising degree of stability, raising questions about common claims of general power shifts within parties.

ASSESSMENT OF THE SUSTAINABILITY OF THE ECONOMY OF KAZAKHSTAN TO THE CONSEQUENCES OF THE CORONACRISIS

В статье раскрыта степень устойчивости экономики Казахстана к последствиям коронакризиса. В частности, рассмотрено влияние нефтяных цен на темпы роста ВВП и достаточность денежных резервов, хранящихся в Национальном Фонде, для поддержания национальной экономики в случае длительного сохранения низких цен на нефть. Для построения более целостной модели использовались также данные по внешнеторговому обороту страны и притоку прямых иностранных инвестиций. Автором проанализированы тенденции развития мировой экономики в период пандемии коронавируса. Выявлены предпосылки возможной рецессии стран, в основу которой заложена возникшая инверсия доходностей двухлетних и десятилетних казначейских облигаций США. Анализируя вопрос инверсии доходности установлено, что ее причиной стали спад финансовых рынков, обесценивание нефти и снижение деловой активности по всему миру, которые вынудили участников рынка перевести средства в 10-летние трежерис. Относительно Казахстана в статье проанализированы экономические последствия коронакризиса, а также изучена степень зависимости экономики от нефтяных цен. Отмечено, что переход к диверсифицированной экономике становится для Казахстана особенно актуальным и приоритетным в условиях волатильности цен на нефть. The article reveals the degree of stability of the economy of Kazakhstan to the consequences of the coronavirus crisis. In particular, the impact of oil prices on GDP growth rates and the adequacy of the monetary reserves stored in the National Fund to support the national economy in the event of long-term persistence of low oil prices are considered. To build a more holistic model, data on the country's foreign trade turnover and the inflow of foreign direct investment were also used. The authors analyzed the development trends of the world economy during the coronavirus pandemic. The prerequisites for a possible recession of countries are identified, which is based on the emerging inversion of the yields of two-year and ten-year US Treasury bonds. Analyzing the issue of income inversion, it was found that it was caused by the recession in financial markets, the depreciation of oil and the decline in business activity around the world, which forced market participants to transfer funds to 10-year Treasuries. With regard to Kazakhstan, the article analyzes the economic consequences of the coronavirus crisis, and also studies the degree of dependence of the economy on oil prices. It was noted that the transition to a diversified economy is becoming especially relevant and priority for Kazakhstan in the context of volatility in oil prices.

An Investigation of Stability and Species and Strain-Level Specificity in Bacterial Volatilomes

Microbial volatilomics is a rapidly growing field of study and has shown great potential for applications in food, farming, and clinical sectors in the future. Due to the varying experimental methods and growth conditions employed in microbial volatilomic studies as well as strain-dependent volatilomic differences, there is limited knowledge regarding the stability of microbial volatilomes. Consequently, cross-study comparisons and validation of results and data can be challenging. In this study, we investigated the stability of the volatilomes of multiple strains of Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli across three frequently used nutrient-rich growth media. Volatilomic stability was assessed based on media-, time- and strain-dependent variation across the examined bacterial volatilomes. Strain-level specificity of the observed volatilomes of E. coli and P. aeruginosa strains was further investigated by comparing the emission of selected compounds at varying stages of cell growth. Headspace solid phase microextraction (HS-SPME) sampling coupled with gas chromatography mass spectrometry (GC-MS) was used to analyze the volatilome of each strain. The whole volatilomes of the examined strains demonstrate a high degree of stability across the three examined growth media. At the compound-level, media dependent differences were observed particularly when comparing the volatilomes obtained in glucose-containing brain heart infusion (BHI) and tryptone soy broth (TSB) growth media with the volatilomes obtained in glucose-free Lysogeny broth (LB) media. These glucose-dependent volatilomic differences were primarily seen in the emission of primary metabolites such as alcohols, ketones, and acids. Strain-level differences in the emission of specific compounds in E. coli and P. aeruginosa samples were also observed across the media. These strain-level volatilomic differences were also observed across varying phases of growth of each strain, therefore confirming that these strains had varying core and accessory volatilomes. Our results demonstrate that, at the species-level, the examined bacteria have a core volatilome that exhibits a high-degree of stability across frequently-used growth media. Media-dependent differences in microbial volatilomes offer valuable insights into identifying the cellular origin of individual metabolites. The observed differences in the core and accessory volatilomes of the examined strains illustrate the complexity of microbial volatilomics as a study while also highlighting the need for more strain-level investigations to ultimately elucidate the whole volatilomic capabilities of microbial species in the future.