Technical Specialists Research Articles

Професійна спрямованість математичної підготовки студентів технічних спеціальностей у контексті фундаменталізації освітнього процесу

The article examines the peculiarities of mathematical training of future technical specialists in the context of fundamentalization of the educational process. The study of the definitions of fundamentalization, mathematical preparation was carried out, the main characteristic features of mathematical preparation, proposed by the researchers of the problem of mathematical preparation, were singled out. An analysis of the work of scientists dedicated to the selected research problem was carried out. It has been established that the mathematical training of future technical specialists is a dialectical combination of formed mathematical skills and abilities for their applied application and the direct process of forming these skills. The fundamentalization of mathematical training is considered to be the concept of improving mathematical training, in which basic mathematical invariants are selected for their further application in professional activities. To implement the approach of professional orientation of mathematical training of students of technical specialties, it is recommended to take into account the peculiarities of the construction of the course of higher mathematics and courses of special disciplines in order to enable the integration of educational material, as well as the organization of the educational process in higher education institutions. Based on the analysis of educational programs for students of various specialties of the Vinnytsia National Technical University, a conclusion was made about the difference in program results in mathematics for students of the same lecture stream. On the basis of which it is proposed to unify tasks of professional content. Examples of professional tasks from the "Theory of Probability" section are given.

AUTOMATION OF LABOR PROTECTION SYSTEM MANAGEMENT AT AN INDUSTRIAL ENTERPRISE

In the hearing State, to which the Republic of Kazakhstan belongs, issues related to occupational safety and health at industrial enterprises, regardless of the form of ownership, are given quite a lot of attention. Because the citizens of the country are the main wealth of the country. If at large enterprises, including with the participation of foreign capital, the process of ensuring labor protection measures is organized to some extent, then at medium-sized and small businesses, work is practically not carried out. Today, in the subjects of medium and small businesses, the organization of accounting, control and timely instruction, if conducted in the old-fashioned way with an entry in journals or in word or excel documents, which today is not only not effective, but also does not ensure the full fulfillment of the duties of an occupational safety engineer and safety regulations (FROM and TB). The adopted Law on Digitalization, the tasks set by the President of the Republic of Kazakhstan in, require managers of industrial enterprises, technical specialists dealing with labor protection issues to radically change the organization of the process of ensuring the learning process, monitoring and compliance with safety and sanitary rules using information technology. The article presents a computer program capable of integrating into an automated industrial enterprise management system, in particular, into an automated workplace of an industrial safety engineer. The developed computer program allows employees of an industrial enterprise (of any division) to be instructed and tested in a remote format directly at the workplace; The practical application of the developed program on a small business entity during the year made it possible to increase the effectiveness of labor protection measures by 25 %, eliminate occupational injuries and reduce the level of safety violations by 75 %. Keywords: control automation system, labor protection, industrial enterprise,information systems, program.

THE ROLE OF SCIENTIFIC AND TECHNICAL DISCOURSE IN THE IMPLEMENTATION OF SCIENTIFIC LANGUAGETRAINING OF ENGINEERS

In this article the content analysis of the concept “scientific and technical discourse” is carried out and various aspects of this concept are systematized. Based on foreign and domestic practices, the main components that characterize scientific and technical discourse as a separate category have been revealed. The key characteristics and properties of scientific and technical discourse are identified, the knowledge and use of which will ensure successful communication in the scientific and technical environment. The specific influence of the identified characteristics on the effectiveness of scientific training has been clarified, since their correct use can significantly increase the quality of language education and training of technical specialists as a whole, improve their professional knowledge and language skills, as well as make them more competitive in the labor market.This scientific work is the result of research obtained in the process of project implementation “Intensification of scientific and professional language training of technical specialists in the context of digital transformation of education” (IRN AP19678460) by the grant funding of Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan.

Toward the Definition of a Repertoire of Technical Professional Specialist Competencies for Operating Room Nurses: An Ethnographic Study.

Registered nurses in the operating room require specialized competencies that surpass basic educational training. Existing national and international documents attempt to outline these competencies but often lack comprehensive details. To address this, a repertoire of technical and professional competencies for operating room nurses, aligned with European and National Qualifications Frameworks, is proposed. Aim: Develop a repertoire of technical and professional competencies for perioperative and perianesthesiological specialist nursing roles. Methods: An at-home ethnography design was employed, utilizing participant observation, interviews to the double, and focus groups. Convenience sampling included 46 participants from a university and a public hospital in northern Italy. Data were collected from September 2021 to June 2023 and analyzed using inductive content analysis and data triangulation. Results: Identified 17 specialized technical professional competencies for perioperative and perianesthesiological nursing, divided into 6 areas of activity. These competencies encompass 19 learning outcomes, 152 tasks, 222 knowledge elements, and 218 skills. Conclusions: This competency repertoire aids in the public recognition of qualifications and serves as a valuable tool for identifying, validating, and certifying competencies. Future research should focus on exploring the competencies of central sterilization nurses and transversal competencies.

Evaluation of computed tomography anode voltage in clinical application: the influence of profiled filters

Monitoring of operational parameters of X-ray diagnostic equipment, including computer tomographs, is mandatory during acceptance and periodic tests in medical organizations. The importance of control of anode voltage of X-ray radiator is described (as one of the main technical parameters in diagnostic tests of patients, which can influence the quality of visualization and safe operation of the equipment). Anode voltage is evaluated by non-invasive methods using universal dosimeters in the user mode of equipment operation. The influence of profiled filters of Somatom Definition AS, SOMATOM go.All (Siemens, Germany) scanners on the accuracy of anode voltage measurement was investigated. The tests were conducted in clinic conditions without partial removal of the gantry (a structural element of the tomograph, inside which the system “X-ray emitter – detector” is located) and connection to the high-voltage circuit of the device. The distance between the sensitive elements of the measuring device and the displacement of the center of the sensing area relative to the position of the central axis of the X-ray beam of computed tomography scanner were taken into account. Normalized curves of kerma values, anode voltage values and their approximating analytical functions were obtained using a Piranha R&F/M 657 universal dosimeter (RTI Electronics AB, Sweden) at its displacement relative to the laser centralizer of computed tomography scanner. Based on the scheme for noninvasive estimation of anode voltage value, a formula of the relative deviation of the measured value of the anode voltage associated with the presence of a profiled filter at the output of the X-ray emitter of the tomograph and the displacement of the center point of the sensitive area of the measuring device relative to the central axis of the X-ray beam of the tomograph is obtained. The validity of the data based on the formula is confirmed experimentally. The results of the study will be helpful to technical specialists who maintain or control the X-ray computed tomography operating parameters.

Low-SAPS additives for lubrication in next-generation vehicles

Purpose The purpose of this study is to create sustainable additives for future vehicles, characterized by low levels of sulfated ash, sulfur and phosphorus (SAPS) or even SAPS-free alternatives. These newly developed additives must not only match or outperform the current commercial benchmarks in terms of tribological performance, but also align with the emerging sustainability trends. It is anticipated that this innovative technology will yield promising outcomes in the realm of hybrid and electric vehicles. Design/methodology/approach This research primarily focused on chemical synthesis, performance evaluation and characterizations. These aspects were studied through collaboration between Syensqo, Southwest Research Institute (the USA) and the Lab of the Future in France. The data was generated and analyzed by a team of research scientists, internship students and technical specialists. Findings Two types of additives have been specifically designed and synthesized in accordance with sustainable requirements. Both technologies have exhibited exceptional frictional and wear-resistant properties. Moreover, the leading candidates exhibit a lower rate of copper corrosion, stable electric conductivity and outstanding thermal stability when compared to commercial benchmarks. This study is expected to open a new research avenue for developing next-generation additives for lubricants, with wide potential applications including hybrid electric vehicle and electric vehicle markets. Originality/value In the current lubricant market, there is a lack of effective low-SAPS or SAPS-free additives. This research aims to address this gap by designing sustainable additives for next-generation vehicles that not only meet specific requirements but also maintain optimal lubrication performance. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2024-0033/

Are the Positions in the Word Ranking of Competitive Alpine Skiers Explainable by Prominent Polymorphisms in Regulatory Genes of Mechanical and Metabolic Muscle Functioning?

ABSTRACT Background: The success of competitive alpine skiers with respective to their world ranking (WR) positions might be associated with prominent gene polymorphisms. Methods: Twenty-six competitive alpine skiers were followed from 2015 to 2019 for their WR positions (FIS-ranking). Using PCR, the genotypes of ACE-I/D, TNC, ACTN3, and PTK2 were identified. The correlations between the discipline-specific WR position (slalom—SL, giant slalom—GS, super G—SG, downhill—DH, and alpine combined—AC) and gene polymorphisms were analyzed concerning an influence with multivariate regression models. Results: The WR position and the ACE gene as well as the copy number of the ACE I-allele exhibited reciprocal relationships for speed specialists (SG and DH) but not for technical specialists (SL and GS). Similarly, the gene polymorphisms ACTN3 and (partly) PTK2 were associated with the WR position in disciplines characterized by a high number of turns (technical specialists—SL and GS) and speed (speed-specialists—SG and DH), respectively. Conclusions: Our findings emphasize the contributions of aerobic and cardiovascular metabolism in fueling muscle work and recovering from muscle fatigue for competitive success in slalom-driven skiing disciplines and highlight the contributions of sequence variants in the genes ACE, TNC, and ACTN3.

The synchronic and diachronic evolution of key themes around SDG 4 before and after 2015: From a quantitative analysis of web-downloaded texts

The authoritative ideas of what education should be like under the fourth Sustainable Development Goal (SDG 4) are constructed through discourse among key actors of the “international education community” at large. This article presents the evolution of international education discourse, comparing the periods before and after September 2015. The analysis is presented in two parts. The first part discusses the period before the adoption of SDGs in 2015, during which the agenda was formulated through discourse. The author identifies themes such as cognitive and noncognitive skills, learning outcomes, measurement and indicators. Actors shaping the discourse included mission-driven civil society organisations (CSOs), constituency-based CSOs, technical specialist groups, UN Member States and philanthropic organisations. The second part is based on a large sample text mining using 832 web-downloaded texts published between 2015 and 2022. The list of key themes largely mirrors those identified in the first part, although the relative weight among them has changed over time. The emphasis has shifted from global, structural topics to more local, specific ones, with increased attention on individual learners and their skills and knowledge. It suggests the uprooted nature of global governance, particularly at the time of SDG adoption. The fact that the term “SDGs” has permeated to the household level reflects widening participation in the global discourse on education. The author observes two contrasting perspectives: one discusses education’s contributions to noneducational goals, such as employment, economic growth, achieving sustainability or guaranteeing basic human rights; while another represents traditional educationalism, which tends to equate schooling with the traditional classifications of primary, secondary and higher education.

An Exploration of Technological Innovations in the Audit Industry: Disruption Theory Applied to a Regulated Industry*

ABSTRACTTechnological innovation is increasing throughout the audit industry. Although prior research has explored how specific technological innovations have influenced the audit product and the profitability of the audit, the strategic implications of technological innovation for the audit industry have yet to be examined. To address this issue, we adopt Christensen's seminal theory of technological innovation (introduced in his 1997 book The Innovator's Dilemma) to gain insight into the results of 27 semistructured interviews with auditors and audit technical specialists. Consistent with Christensen's sustaining and efficiency strategic responses, our findings suggest that, at this time, technology is primarily being used by the audit industry to strengthen the audit industry's ability to serve mainstream clients by providing a “higher‐quality” and lower‐cost audit to replace menial tasks that historically have been done by junior auditors. We find that industry‐disruptive new market entry is currently prevented by regulatory and professional barriers; however, strategic disruption to the audit industry appears inevitable as technology is already being used in audits of nonregulated markets by new entrants. Strategically, the audit industry will survive in its current recognizable form only if self‐disruption occurs before the regulatory barriers are dropped, which requires significant upskilling in the industry to ensure that firms have the skills to be first movers whenever technological innovations are introduced.

A ‘design justice’ approach to developing digital tools for addressing gender-based violence: exploring the possibilities and limits of feminist chatbots

ABSTRACT Digital tools, such as safety apps, reporting portals, and chatbots, are increasingly being used by victim-survivors of gender-based violence to report unlawful activity and access specialized support and information. Despite their limitations, these interventions offer a range of potential benefits, such as enhancing decisional certainty, promoting safety behaviors, and fostering positive psychological outcomes. In this paper, we introduce an innovative ‘design justice’ approach to the development of digital tools for addressing gender-based violence. Drawing on our experience of building a feminist chatbot focused on image-based sexual abuse, we argue that the integration of feminist principles throughout the design, content, and evaluation stages is crucial for mitigating the risk of harm and promoting positive outcomes. Our theory-informed and practice-led approach can help to guide the development of other digital tools for addressing gender-based violence. Nonetheless, more scholarly research is needed to investigate the use, efficacy, and impacts of such interventions, at the core of which should be interdisciplinary collaboration between subject matter experts, victim-survivors, technical specialists, and other key stakeholders.

COMPUTER VISUALIZATION IN TEACHING GENERAL TECHNICAL DISCIPLINES: THEORETICAL AND PRACTICAL ASPECTS

The article investigates the development of visual aids and visualization ideas in the organization of the educational process, particularly in teaching general technical disciplines. The article aims to review the development of visual aids and visualization ideas in education, clarify the essence of computer visualiza- tion, classify its types and kinds, and determine the directions of computer visualization usage in teaching general technical disciplines and the software applications that ensure their development for educational purposes. The study operates methods of retrospective, content, and semantic analysis, classification, gen- eralization, and modelling. The historical context of introducing electronic visualization tools in education has been considered in the study, starting from the first projectors in the 1930s to modern computer visualization technologies such as 2D and 3D visualization, stereoscopic 3D, virtual reality (VR), and augmented reality (AR). The es- sence of computer visualization as a general term for graphic methods of creating, analysing, and transmit- ting information has been defined. Differences between the didactic principles of visual aids and visualiza- tion have been clarified. It has been highlighted that visualization has a more complex structure since it in- cludes actions for constructing images of investigated objects or phenomena. The article identifies the directions for implementing computer visualization, including scientific, soft- ware, and information visualization. It has been established that all visual content can be divided into three subgroups: structured, artistic, and demonstrative visual objects, which can be static or dynamic, in one plane or three-dimensional space. The impact of computer visualization on the methods of teaching general technical disciplines has been analysed. It has been shown that modern approaches to using computer visualization provide new opportunities for more effective and interactive learning, promoting the development of students’ technical and spatial imagination, which is crucial for future engineers and technical specialists. An approximate list of software for creating computer visualization tools, which can be useful in teaching general technical disciplines, has been provided. Among them are applications for creating presentations and infographics, 3D modelling, VR and AR-based applications and services, simulators, and emulators. The main directions for using computer visualization aids in teaching general technical disciplines are identified, including auxiliary synopsis, diagrams, tables, block diagrams, graphs, frames, word clouds, domain structures, memory cards, comics, heuristic sketches, knowledge animation, infographics, multimedia presentations, educational videos, static and dynamic 2D and 3D models, VR and AR objects. It has been concluded, that the didactic effectiveness of computer visualization in teaching general technical disciplines is ensured by certain provisions, namely: the focus on the quick and complete memorization of studied concepts, theories, and ideas by students; adherence to the principles of reliability, quality, completeness, sufficiency, logic, simplicity of perception, optimality, unity of graphics and text, and emphasis on key points; encouraging students to independently analyse and construct new, non-trivial didactic tasks allowing them to explore concepts, phenomena, or objects in terms of independent search and educational experimentation.

Влияние online-дискуссий на формирование навыков аргументации у будущих инженеров

The paper presents the results of empirical research on the effectiveness of online discussions (OD) as a tool for forming argumentation skills among technical university students. On the one hand the actuality of the research is conditioned by the significance of discussion-based training of modern technical specialists under conditions of networking and socio-technical transformation of engineering activity. On the other hand, this problem is not elaborated in the domestic, pedagogies and also contradictory and poorly studied aspects in the foreign one. The results of the present study are important for scientifically substantiated methodological implementation of new approaches to engineering training under conditions of digitalization of education and increased requirements for discussion and information competence of a modern technical specialist. The research was conducted on the basis of two Novosibirsk universities and covered 350 second – and third-year students in "construction" and "automation and computer engineering" baccalaureate specialties. The analysis of the OD results conducted in VLE "Moodle" using "debate" (synchronous discussion) and "forum" (asynchronous discussion) methods showed that inclusion of online-discussions in to the educational process of technical universities improves argumentation skills of future engineers by 20-30 %. The data obtained at the stages of the forming and control experiment let us reveal a higher efficiency of asynchronous forms of online-discussions in comparison with synchronous ones. Their advantage is to 28,68 %, depending on the formed component of argumentation. Based on the results of the study recommendations were given to teachers to improve the effectiveness of social interaction of students during OD, including the feasibility of replacing debates with synchronous discussion methods, more focused on the joint search for solutions.

Evaluating Training Methods for Future Technical Specialists

This study evaluates the efficacy of current training methods for technical specialists in higher education, focusing on the development of professional competencies, skills, and personal qualities. Utilizing a mixed-methods approach, including questionnaires and interviews among students of National Technical University “Kharkiv Polytechnic Institute” and National University of Civil Protection of Ukraine, the research identifies gaps in traditional educational frameworks and the challenges posed by distance learning. Key findings reveal a significant satisfaction with the quality of professional training among students, underscored by the effective use of modern teaching methods and technologies. However, difficulties with distance learning and technology utilization were notable concerns. The study recommends the creation of online laboratories, development of training programs for modern technologies, incorporation of joint student projects, and enhanced collaboration between universities and industry to improve training quality. These recommendations aim to align technical education more closely with industry demands and technological advancements. The implications for Technical and Vocational Education and Training (TVET) suggest a paradigm shift towards integrating interactive, technology-driven methods into curricula, addressing the digital divide, and fostering industry-academia partnerships. This approach promises to prepare a workforce adept at navigating the complexities of modern and future job markets, emphasizing the practical application of theoretical knowledge and the importance of continuous learning and adaptability.

Educative capital of online school students: searching for empirical referents

The article is about Russian online schools that issue state-issued certificates to graduates. The relevance of the study is related to the accelerated process of digitalization of education and the need to improve the quality of human capital. The authors present a methodological model for analyzing the educational capital received by students in online schools. Empirical referents, with the help of which it is possible to identify the structure of educational capital and analyze its most developed elements and deficit zones, are substantiated. It was possible to classify the developed indicators and divide them into six groups. Among the proposed indicators are academic performance, participation in Olympiads for schoolchildren, family educational capital, knowledge of foreign languages, computer literacy, profile and rating of schools, attendance at extracurricular activities. To understand the transmission of family educational resources, especially in the dynasties of technical specialists, not only the education and profession of the online school student's parents but also the education and professional activities of older generations of the family are taken into account. The list of referents is made to study the educative capital of online school students but it is also relevant to other groups of students. Indicators can be used in various types of empirical sociological and interdisciplinary research. In general, the methodological model is more suitable for the analysis of reflective technologies: representative polling, standardized questionnaires, focus groups, open-ended questionnaires, biographical interviews and other qualitative sociological methods. The results of the study are useful for various areas of social policy, as well as for evaluating the digital educational environment and distance learning methods at school.

Production of vegetables with biofertilizers based on native microorganisms: A case study in Tixtla, Guerrero, Mexico

In agriculture, the use of fertilizers has increased due to the high demand for food by humanity, causing negative impacts because of high production costs and soil contamination. We evaluated five biofertilizers based on native microorganisms promoters of plant growth (NMPPG) as an alternative to the fertilizers used by small vegetable producers. The evaluation was carried out with three types of vegetables (lettuce, celery and epazote) in the Juan Berbera Catalán Irrigation Unit made up by producers from the community of Tixtla, Guerrero. The results show that Rhizobium sp. R01 (Tx3), Azotobacter sp. C3 (Tx1) and Bacillus licheniformis M2-7 (Tx5) used as biofertilizers promote germination and considerably increase fresh weight in these crops, and Azospirillum sp. M9 (Tx2) and Trichoderma sp. ABC1 (Tx4) present significant differences with the negative and chemical control. The yield of lettuce, celery and epazote was favored using biofertilizers, which can be considered a good alternative to apply to these crops, likewise, the price of biofertilizers (5 liters per Tx) compared to the fertilizer DAP-18-46-00 (50 kg) used by the same producers is $1,200.00 vs. $2,000.00 MXN per hectare produced respectively. In conclusion, the biofertilizers used herein represent a feasible alternative for farmers without disregarding the need for technical specialists and producers to identify optimal conditions that support the sustained application and management of biofertilizers.

Integration of courses within professional and applied training of petroleum technical specialists

Integration of courses within professional and applied training of petroleum technical specialists

Analysis and development of criteria for the operational efficiency of urban electric buses

Problem. Currently, manufacturers and research specialists primarily utilize the amount of autonomous mileage and/or the specific electricity consumption of autonomous DEEs per unit of mileage to describe the general characteristics of urban electric buses. However, the structural mass and the key operational parameter, the nominal passenger capacity, are often disregarded. Therefore, comparing electric buses of the same type with identical dimensional parameters based solely on these criteria is illogical and incorrect. Goal. This study aims to establish criteria for the operational efficiency of urban low-floor electric buses of various types, considering autonomous DEE and their charging or replacement systems. These criteria should account for structural mass and nominal passenger capacity, facilitating a proper comparative assessment and the selection of the most optimal options for use in urban passenger transportation systems. Methodology. Criteria for the operational efficiency of city electric buses of various types are proposed based on an analysis of electricity consumption required for both movement and the operation of heating, ventilation, and air conditioning systems. The criteria consider the mass in the equipped state and the main parameter - nominal passenger capacity. Results. Several operational efficiency criteria for urban electric buses, incorporating mass parameters and passenger capacity, are suggested. The feasibility of their application is demonstrated through a comparison of five sketch projects of electric buses of various types with modern models. Originality. The proposed criteria for the operational efficiency of urban electric buses offer a method for adequately comparing any selected models, regardless of their types and technical specifications. Practical value. The proposed criteria for the operational efficiency of urban electric buses of various types can be beneficial for transport company specialists in selecting suitable rolling stock for specific routes. Additionally, design bureau and scientific and technical center specialists can utilize these criteria during the design process of new urban electric transport models.

Career trajectories of graduates of Russian universities of natural sciences and humanities

Introduction. The process of professional development of the country is influenced by global processes: digitalization, progressive science and institutional education, the emergence of new interdisciplinary scientific fields, the development of new factors of social mobility, the emergence of new professions, etc. This influence can be taken into account in the discrepancy between the desired labor and educational career paths with the fact that university graduates use life guidelines based on the level of dissatisfaction with their acquired profession and career. The purpose of the article is to demonstrate the distinctive features of the formation of career trajectories of university graduates who received education in the natural sciences and humanities. Materials and methods. To achieve this goal, an online questionnaire was conducted, in which 252 graduates of different years from 32 Russian universities of natural sciences and humanities took part. To process the data, sequential analysis of t-Student criteria (p = 0.05), factor analysis, and content analysis were used. Results. Special features of the formation of career trajectories have been identified: the assessment of the demand for knowledge and skills in the labor market among graduates of natural science faculties after a bachelor's degree is higher than among graduates of humanities (7.17 compared to 5.75); More often than not, graduates of natural science faculties (71.6 compared to 43.1) plan to work/continue to work in the specialty acquired as a bachelor’s degree; 67.9% of graduates of natural science faculties have a longer planning horizon (several years) (compared to 43.1). from 32.1%); 26% of “techies” continue their work dynasty (compared with 6%); %); significant values for graduates of humanities are “harmony of personal life and career” (4.49 on average 4.01), “social recognition” (3.42 on average 2.95) and “emotional health” (4.52 on average 4.11), while for “techies” the opportunity to realize their entrepreneurial abilities is more significant (3.2 on average 2.75). “Humanitarians” compared to “technical specialists” are potentially more ready for sabbatical (3.46 on average 2.78), downshifting (2.65 on average 2.18) and relocation (3.40 on average 2.73). Four types of career trajectories were identified among graduates of humanities faculties (using the rotation method – Varimax): balanced multipotential, stagnant uncertain, innovative and altruistic escapism. For graduates of natural sciences, such differentiation is not defined. Conclusion. The data obtained allow us to conclude that graduates of natural science faculties have more employment opportunities due to the compliance of university training with the requirements of employers. For graduates of humanities faculties, the career trajectory is more variable, unstable, has a fluctuating nature and is associated primarily with horizontal mobility, while for graduates of natural science faculties the career trajectory is less variable and has a greater tendency toward upward mobility

Basketball as a means of training technical specialists and issues of implementation in elective courses on physical education at a technical university

Basketball as a means of training technical specialists and issues of implementation in elective courses on physical education at a technical university

Team sports games as a factor in the effectiveness of training technical specialists

Team sports games as a factor in the effectiveness of training technical specialists