bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling of Automated Guided Vehicles in Material Transport within Flexible Manufacturing Systems Using Fuzzy Logic
Authors: Chandrasekaran Muthumari , Teyi Nabam
Published: September 2024

Modern automated manufacturing environments are highly agile and are confronted with continuous change in market demands/customers’ requirements. Flexible Manufacturing Systems (FMSs) cater to the need of extensive flexibility and ability to manufacture different variety of batch quantity of components simultaneously in the highly dynamic environment. In FMSs, automated guided vehicle (AGV) systems are commonly used to control complex automated material handling systems. Path design as well as planning and control of AVGs are challenging problems for researchers. In this work, an attempt has been made to model AGVs in FMS using fuzzy logic technique as a modeling tool. A hypothetical FMS system with two AGVs, four processing stations, one buffer and an input/output station is considered. Parts routing, processing operations, allotted machines, processing time and part-mix variation are inputted. AGVs movement to be accomplished for movement of parts obtained is based on rule base consisting of ‘If – then’ statements. Movement of AGVs in FMS without any deadlock for moving the part in an optimized path so as to achieve maximum utilization of the system is aimed. The methodology is demonstrated with illustrative examples.
Plasticity of life-history traits in the Draa barbel Luciobarbus lepineyi (Pellegrin, 1939) (Actinopterygii: Cyprinidae) in the sub-Saharan Draa basin, Morocco: effect of change in flow regime and salinity
Authors: Hanfouri Souhaib , Ait Boumallassa Fayçal , Naimi Mohamed , Znari Mohamed
Published: September 2024

The Draa barbel Luciobarbus lepineyi (Pellegrin, 1939), an endemic and unique cyprinid of the arid Draa river basin, southern Morocco, faces a range of multiple environmental stressors, especially in intermittent rivers and ephemeral streams (IRES). We assessed the effects of flow intermittence and salinisation on the somatic condition, and life-history traits in Draa barbels. We used the scaled-mass index (SMi) to evaluate the mean individual somatic body condition in nine populations. For three contrasted localities: Iriri (IR), Mghimima (MG), and Sid El Mokhtar (SM), we aged fish from scales and calculated von Bertalanffy growth parameters using the Beverton-Holt procedure. We used these parameters to estimate growth indices and performance, size and age at maturity, longevity, and mortality rates. Mean SMi decreased markedly with increasing salinity, revealing a normal condition at 0.4 PSU in IR, a poor condition in MG at 4 PSU, and a very poor condition at 10 PSU in SM. Growth rates (k) increased with salinity. Conversely, asymptotic lengths L∞ and growth performances (phi-prime, φ′) decreased with salinity and flow intermittency. The potential longevity tmax decreased with the increase in salinity. On the other hand, the mortality rate increased with flow intermittence and salinity. The Draa barbels in the saline IRES of the arid Draa basin compensate for the high mortality by growing faster but less efficiently. They mature at an earlier age and have shorter longevity. With this high life-history plasticity, the Draa barbel would constitute a good ecological indicator and a sentinel for salinisation in variable aquatic environments in the arid Draa river basin.
The medial parapatellar approach reports earlier knee recovery than the transpatellar approach for intramedullary nailing of tibial fractures
Authors: Abulsoud Mohamed I. , Zayed Emad M. , Al Nahhas Mohammed
Published: September 2024

Background

A tibial fracture is the most common long bone fracture, and intramedullary nailing is the most widely accepted treatment option for tibial fractures. Several approaches for entry points have been described.

Objective

The study aims to evaluate the knee functional outcome, range of motion, and anterior knee pain after intramedullary nailing for tibial fractures using the medial parapatellar approach (MPA) compared to the transpatellar approach (TPA).

Patients and methods

From January 2021 to December 2022, a prospective case–control study was undertaken on patients presented with diaphyseal tibial fractures treated by intramedullary nailing through MPA or TPA, knee range of motion, anterior knee pain, and functional outcome using Lysholm score was used to evaluate the patients after 12 months follow up.

Results

The study included 80 patients who were allocated into both groups, postoperatively, the mean time for regaining full range of motion was 3.2(±1.2) weeks in the MPA group, and 5.8(±2.2) weeks in the TPA group (P=0.001), the anterior knee pain at the end of follow up was present in five (12.5%) cases in the MPA group, and six (15%) cases in the TPA group, The functional outcome of the knee shows the significant difference after 6 weeks and 3 months the follow-up, at the end of the follow-up, the mean Lysholm knee score was 94 in the MPA group in comparison to 91 in the TPA group with no statistically significant difference between both groups.

Conclusion

Using the MPA for intramedullary nailing for tibial fractures leads to earlier regaining of knee range of motion and higher knee scores, but with comparable results after 12 months compared to the TPA.
Functional outcomes of arthroscopic frozen shoulder release in diabetic and nondiabetic patients: a comparative study
Authors: Haroun Yahia , AbdelHady Amr M. , El Dessokey Haitham A.A.A. , Ezzat Mohammed A.H.
Published: September 2024

Background

Adhesive capsulitis (Frozen shoulder) is a disorder that remains poorly understood in terms of pathology and optimal treatment. Frozen shoulder is common among diabetic patients, with diabetes being a significant risk factor. This study evaluated the shoulder function (utilizing Oxford score and range of motion) and visual analogue scale (VAS) pain score after performing arthroscopic 360° capsular release and biceps tenotomy in diabetics versus nondiabetics with primary frozen shoulder.

Patient and methods

This prospective comparative analysis was conducted at Ain Shams University Hospitals between September 2022 and September 2023. Twenty patients with an established diagnosis of idiopathic frozen shoulder, with symptoms for a minimum of three months and failed conservative management were enrolled. All patients underwent arthroscopic 360° capsular release and biceps tenotomy with at least a 6-month follow-up period. Clinical, and functional data (Oxford Shoulder Score and range of motion), VAS pain score, and perioperative data were recorded and analyzed.

Results

The study population included 15 (75%) females and five (25%) males, they were divided into two age and sex-matched groups, 10 patients diagnosed with diabetes in group 1 and 10 nondiabetic patients in group 2, with a mean age of 53 years in group 1 and 48 years in group 2. Both groups demonstrated significant postoperative improvement in VAS pain score, Oxford shoulder score, and range of motion with a P value less than 0.001. When comparing the magnitude of benefit between the two groups, no statistically significant difference was detected (P value ˃ 0.05).

Conclusion

Arthroscopic 360° capsular release and biceps tenotomy effectively lower VAS pain score and improve shoulder function and range of motion in idiopathic frozen shoulder. Both nondiabetic patients and diabetic benefit equally from the procedure.
КОНЦЕПТ «ІНКЛЮЗИВНЕ СЕРЕДОВИЩЕ» У СУЧАСНОМУ ПОГЛЯДІ НА СУСПІЛЬСТВО РІВНИХ МОЖЛИВОСТЕЙ В УКРАЇНІ ТА ЄВРОПІ
Authors: Andreieva Mariia
Published: September 2024

The article is devoted to the conceptualization of the concept of an inclusive environment, taking into account the European integration trends of building a society of equal opportunities. The concepts of «inclusion» and «integration», their relationship and differences are defined. The foreign experience of creating inclusive educational institutions is studied. Modern trends in Ukrainian legislation and society to ensure equal rights and opportunities for all citizens regardless of health status are characterized. The research defines views on the post-Soviet society, which is in a state of not too dynamic and full of contradictions of transformation due to the traditions of family and social education, which create specific conditions that prevent the formation of a society of equal opportunities. The author relates such problems, in particular, the lack of political will to establish parity in power relations and decision-making; lack of guidelines for equal relations in the public consciousness of all social subjects without exception; the transmission of stigmatizing stereotypes in the public consciousness and their active negative influence on the formation of partnership relations between citizens of the country. This scientific publication is devoted to the solution of these problems, and the author proposes ways to solve them, taking into account current trends and the best European experience.
HARMONIOUS INTERPERSONAL RELATIONS AS A SCIENTIFIC PROBLEM: PHILOSOPHICAL, PSYCHOLOGICAL AND PEDAGOGICAL ASPECTS
Authors: Borzyk Olena
Published: September 2024

The article highlights the theoretical substantiation of the problem of harmonious interpersonal relations through the prism of philosophy, psychology and pedagogy. It is emphasised that harmonious interpersonal relations are a complex multidimensional integral category formed by the relatively distinctive concepts of «relations» (forming the basis of the basic concept), «interpersonal relations» (a stable term that is the content centre) and «harmony» (a positive qualitative expression of interpersonal relations). On the basis of the analysis of scientific works in the field of philosophy, psychology, sociology, ethics and aesthetics, and pedagogy, the essence of the basic concepts of the study «relations», «interpersonal relations» and «harmony» is revealed. It is proved that the lexemes «relations», «relations» («interrelations»), «relations» are synonymous, but not equivalent, since they denote different stages of the dynamics of interpersonal relations, the transition to which is accompanied by different quality of feelings and emotions. It is emphasised that in order to emphasise that relations are considered in the «person-to-person» plane and that energy and spiritual exchange is envisaged between the subjects of interaction, it is advisable to use the lexeme «relations» in conjunction with the adjective «interpersonal». It is noted that «interpersonal relations» is now a stable term and appears as a projection of interpersonal interaction, where the latter is the process of performing joint activities in relation to a common material object, mediated by communication of interacting subjects, the main purpose of which is to achieve a common result. The essence of the concept of «harmony» as a philosophical category and its manifestation in interpersonal relations is revealed. The definition of the concept of «harmonious interpersonal relations» is given: the highest degree of manifestation of emotional, spiritual, moral, aesthetic in interpersonal relations, which makes it possible to establish links between individually and psychologically different people in such a way as not to eliminate these differences, but to ensure their unification, thus creating conditions for personal development and growth of all their participants.
ПОНЯТІЙНО-ТЕРМІНОЛОГІЧНИЙ АПАРАТ ФОРМУВАННЯ ІНСТРУМЕНТАЛЬНИХ КОМПЕТЕНТНОСТЕЙ МАЙБУТНІХ УЧИТЕЛІВ МАТЕМАТИКИ ТА ФІЗИКИ У ПРОЦЕСІ ПРОФЕСІЙНОЇ ПІДГОТОВКИ
Authors: Брославская Галина
Published: September 2024

The article analyses the works of scholars on their understanding of the essence of the concepts of «competence» and «competence», and points out the common factors and differences between these concepts. The author draws attention to the fact that the concepts of «competence» and «competence» are not synonymous, and also to the most important feature of competence, namely, that any competence should express the level of mastery of certain competences by a person to solve various professional and life tasks. The paper reveals the problem of the lack of a clear definition of the concept of "instrumental competences"; substantiates the essence and structure of instrumental competences of future teachers of mathematics and physics in the process of professional training, characterises their main features; builds occupational profiles of future teachers of mathematics and physics. Based on the conducted research, it is concluded that the formation of instrumental competences of future teachers of mathematics and physics in the process of professional training should be understood as a controlled process of mastering a set of instrumental competences and developing their personal qualities and abilities through the cross-cutting use of the latest information, communication and pedagogical technologies in the process of professional training.
СУТНІСТЬ ГОТОВНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ПОЧАТКОВИХ КЛАСІВ ДО ОЦІНЮВАЛЬНОЇ ДІЯЛЬНОСТІ В УМОВАХ ІНКЛЮЗИВНОЇ ОСВІТИ
Authors: Volkova Kateryna
Published: September 2024

The article raises the problem of implementing assessment activities in the context of inclusive education. Future primary school teachers need to understand the role of assessment in education for students, including children with special educational needs, the impact of assessment on the dynamics of development of a particular student, his/her psycho-emotional state, quality socialisation and adaptation to the educational environment among healthy peers. The author traces the historical context of the introduction of inclusive education in Ukraine. Attention is drawn to the interpretation of the concepts of «professional competence of a teacher» and «inclusive competence», which reflect the specifics of forming the readiness of future primary school teachers for evaluation activities in inclusive education. The functions of evaluation activities in inclusive education (stimulating and motivational, educational, educational, developmental, diagnostic and corrective, reflective, feedback, socialising) are highlighted. It has been determined that in the process of forming the readiness of future primary school teachers for evaluation activities, the psychological, pedagogical and socio-pedagogical knowledge of a specialist in the field of inclusive education, knowledge of forecasting, planning and organising evaluation activities in inclusive education in accordance with the set pedagogical goals and objectives play a decisive role. The readiness of future primary school teachers for assessment activities in inclusive education involves the integrative unity of the following components: motivational, cognitive, activity and reflective.
СУТЬ ТА ЗМІСТ ГОТОВНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ПОЧАТКОВИХ КЛАСІВ ДО ВИХОВАННЯ КУЛЬТУРИ ГЕНДЕРНИХ ВІДНОСИН У МОЛОДШИХ ШКОЛЯРІВ
Authors: Ильина Елена
Published: September 2024

The article is devoted to one of the important modern pedagogical problems facing the education system, which is the education of the young generation taking into account the gender approach. In the Law of Ukraine «On Education» (2017), «On Higher Education» (2014), the National Doctrine of Education Development (2002), the National Education Development Strategy of Ukraine for the period until 2021 (2012), the Law of Ukraine «On preservation of equal rights and opportunities for women and men» (2005) and the Order of the Ministry of Education and Science of Ukraine «On the implementation of the principles of gender equality in education» (2009), considerable attention is paid to the requirements of ensuring equal rights and opportunities for schoolchildren of both sexes. A wide range of research on gender issues reflects the multifaceted nature of the problem itself and indicates the presence of key characteristics of gender relations in the mass consciousness. Based on the analysis of philosophical (I. Boyko, V. Pashchuk) and psychological and pedagogical (T. Govorun, T. Doronina, O. Lutsenko) literature, the essence of the concepts «gender», «culture», «gender culture» was determined, which made it possible to single out the content of the culture of gender relations of younger schoolchildren as a set of knowledge, forms of thinking, methods of activity, taking into account the age characteristics of primary education recipients, which are based on the gender-role values of gender culture accumulated by society. At the current stage of scientific research, the problem of gender relations is singled out, which become the subject of research in gender psychology, which covers the following areas of research: psychology of gender differences; socio-psychological foundations of gender identity; gender socialization; gender roles and personality characteristics; applied aspects of gender psychology.
APPLYING MIND MAPPING TECHNIQUES TO ACTIVATE GROUP EDUCATIONAL AND COGNITIVE ACTIVITIES OF FUTURE COMPUTER SCIENCE TEACHERS
Authors: Kyselyova Olesya
Published: September 2024

In the modern conditions of the dynamic development of the information society, the training of specialists in the field of pedagogy, in particular computer science teacher, becomes especially relevant. The priority task of higher pedagogical education is the formation of a new generation of educators, who must possess not only thorough knowledge of the subject, but also developed skills of social interaction, cooperation, teamwork, freely navigate in the information space, use modern electronic didactic tools, specialist services, information resources etc. The article examines the essence of the concepts «group educational and cognitive activities», «collective forms of learning», «electronic cooperation», «mind mapping techniques». The author analyzed the possibilities of mind mapping techniques as a means of visualizing thinking processes and structuring information. The classification of digital tools for creating mind maps (free and licensed programs and webservices) is presented. Their advantages and features, methodological techniques and basic principles of working with them are considered. The practical experience of using mind maps to activate the group educational and cognitive activities of students is presented. The method of using mind maps in the training of future computer science teachers is proposed, which includes: determining the purpose and tasks of using mind maps; choosing an online service for their creation; acquainting applicants with the basic principles of working with mind maps; their performance of practical tasks using mind maps; discussion of the results of tasks and summing up. Practical tasks and samples of the results of students' joint work on creating mind maps within the educational component «School computer science course and its teaching methods» are presented. It was found that the use of mind mapping techniques is a promising method of activating the group educational and cognitive activities of future computer science teachers, which contributes to the formation in them of the necessary competencies for successful professional activities in the conditions of the information society.
ЕЙДЖИЗМ:ТЕРМІНОЛОГІЧНИЙ АНАЛІЗ ТА ПРАКТИЧНІ ІНСТРУМЕНТИ СОЦІАЛЬНО-ПЕДАГОГІЧНОЇ КОРЕКЦІЇ У СТУДЕНТСЬКОЇ МОЛОДІ
Authors: Печериця Наталія
Published: September 2024

The article is devoted to the study and analysis of the phenomenon of ageism among student youth. The article examines the problem of ageism in the student environment, analyzes the research of domestic and foreign scientists. A terminological analysis of the concept of «ageism» is carried out, its main characteristics and forms of manifestation in the student environment are determined. The causes of ageism and its negative consequences are analyzed. The essence, types and specifics of ageism are revealed. The social levels at which ageism manifests itself are characterized. The features of the manifestation of ageism in young people are singled out in three main components: cognitive, value, and emotional-behavioral in intrapersonal relationships, interpersonal interaction, and social relationships. The specifics of the concept of «youth ageism» are considered. Age ranges, psycho-age characteristics of the elderly and the specifics of their perception in modern society are considered. Statistical data are provided, which confirm the relevance of the implementation of corrective activities regarding the problem of ageism in Ukraine. The reasons that give rise to ageist attitudes among young people are characterized. Let's consider the meaning of the term «correction», the main directions of correction are revealed. The importance of using a socio-pedagogical approach in correcting this phenomenon is outlined. The term «ageism of student youth» was formulated, the essence of the concept of «social-pedagogical correction» was clarified. Practical tools for socio-pedagogical correction of ageism among students of higher education aimed at creating a tolerant and harmonious environment are proposed.
СУТНІСТЬ ПОНЯТТЯ КРЕАТИВНИХ ЗДІБНОСТЕЙ МАЙБУТНІХ УЧИТЕЛІВ У ПСИХОЛОГО-ПЕДАГОГІЧНІЙ ТЕОРІЇ
Authors: Polyakova Iryna
Published: September 2024

The article, based on the analysis of scientific and pedagogical sources and professional experience in a pedagogical institution of higher education, explores the content of the basic concepts of the development of future teachers' creative abilities – «creativity» and «creative abilities». It has been found that creativity is associated with the abilities and dispositions of the individual, which are general, i.e. universal for everyone, and special, which reflect the peculiarities of the implementation of a particular activity and can develop differently in each person. The development of abilities, in particular creative ones, is influenced by internal (personal qualities, interests, priorities, etc.) and external (society, real opportunities and means of self-realisation) factors. Creative abilities are a set of individual qualities that make it possible to carry out successful creative activity, directing all efforts to optimize the pedagogical process, finding an unlimited number of ways to solve a problem, and the ability to go beyond the standard situation in the educational process. The author comes to the conclusion that the development of future teachers' creative abilities requires the use of appropriate methods and forms to ensure competence-based, differentiated, personality-oriented, individual, creative approaches to achieving the goal and training specialists who are capable of active self-development, aware of their abilities, capabilities, strive for self-improvement and creative solutions to various life and professional tasks. The prospect of the study is to study the methodological basis for researching the problem of developing future teachers' creative abilities in today's conditions.
ІСТОРИЧНИЙ РОЗВИТОК ТА КЛАСИФІКАЦІЯ СУЧАСНИХ ВИДІВ АЕРОБІКИ
Authors: Pyatnickaya Daria
Published: September 2024

Sport is not only about health, but also about entertainment, recreation, teamwork, sustainable motivation, harmonisation of the mental, physical and intellectual state of the individual. The article highlights the importance of sport in modern society, its impact on the physical and mental health of people. The stages of aerobics evolution from its inception (Ancient Greece) to the present are considered. Attention is drawn to the history of the development of the components (types) of cheerleading aerobics (motivational shouts with steps, dance moves, tricks, etc.) and skipping or rope skipping (jumping rope). The author analyses the transformation of aerobics under the influence of scientific research, social change and technological progress. Cheerleading and skipping are interconnected with aerobics, as they have similar features in the context of sports: steps and jumps, rhythm, dancing, muscle development, mass participation. The history of aerobics development shows that the improvement of various types of aerobics has been further developed as a result of the introduction of new methods, forms and means of training. It has been found that aerobics is a specially designed complex of general developmental physical exercises that combines breathing exercises with body movements and is performed to music. The classification of aerobics types is presented: health aerobics, sports aerobics, fitness aerobics, applied aerobics. It is noted that various variations of aerobics originate from classical aerobics, improving and expanding the content, direction, etc. Particular attention is paid to modern types of aerobics, such as Zumba, step aerobics, Pilates, aqua aerobics and others, their classification and disclosure of their specific features. The article provides a thorough understanding of the trends in the development of aerobics and its role in maintaining a healthy lifestyle and sports culture.
ПЕДАГОГІЧНА ІСТОРІОГРАФІЯ ФОРМУВАННЯ ІНДИВІДУАЛЬНОГО СТИЛЮ ПРОФЕСІЙНОЇ ДІЯЛЬНОСТІ ВИХОВАТЕЛЯ
Authors: Syrova Yuliia , Pyvovarenko Maryna , Kolosova Svitlana
Published: September 2024

The article is devoted to the historical description of the process of formation of the individual style of the educator's professional activity in different periods of time. The psychological and pedagogical literature was analyzed, the relevance of this problem in modern research was determined. The essence of the concept of «style», «individual style of the educator's professional activity» is defined. It has been found that the concept of «style» is a general scientific concept and belongs to various fields of human activity − lifestyle and behavior, fashion and thinking, art, literature, science. It was determined that the concept of «style» began to be studied in ancient rhetoric, in particular, by the ancient Greek scientist Aristotle, as an expressive means of speech. This concept was characterized in the artistic direction even in the era of Ancient Egypt, Byzantium, in particular, as Romanesque, Gothic, classicism, baroque, rococo, modern, etc. It was found that the concept of «style» received significant development in the system of general philosophical categories in the 19th century, scientists called it «the pulse of self-fulfillment of culture». Styles of thinking were defined, namely: mythological, natural philosophical, scholastic, analytical or metaphysical and synthetic or dialectical. It has been established that since the second half of the 20th century, psychologists have distinguished behavior styles (avoidance, accommodation, confrontation, cooperation, compromise). It was determined that in pedagogy the concept of «style», «individual style» was the subject of research by modern teachers of the 21st century. The individual style of activity is characterized as natural, innate features of a person and personal qualities acquired during life, which arise during the interaction of a person with the material and social environment.
СУТНІСНА ХАРАКТЕРИСТИКА КОМУНІКАТИВНОЇ КУЛЬТУРИ МАЙБУТНІХ ВИХОВАТЕЛІВ ЗАКЛАДІВ ДОШКІЛЬНОЇ ОСВІТИ В УМОВАХ МАГІСТРАТУРИ
Authors: Kharkivska Aryna
Published: September 2024

The article is devoted to the problem of development of future preschool teachers' communicative culture in the conditions of master's degree. The analysis of scientific and pedagogical literature in the context of coverage of the definitions of the concepts of «development» and «communicative culture of personality» was carried out, on the basis of which the basic concepts of the study were defined: «communicative culture of the future preschool teacher» (a set of personal communicative qualities and skills characterised by the presence of appropriate abilities, a system of knowledge of the basics of both native and foreign languages, age and individual psychological characteristics of preschool development, norms, rules and principles of communicative culture, norms of communicative behaviour in children's and pedagogical multicultural groups with the help of verbal and non-verbal means of communication); «development of communication culture of future preschool teachers in the conditions of master's degree» (conscious purposeful process of positive changes in the level of mastering general and special competences). The key concept of the study is based on and at the same time subordinated to the interdependent components of the structure of future teachers' communicative culture in the context of master's degree, namely: communicative and reflective orientation, communicative literacy, communication ethics, cross-cultural interaction, communicative and organisational readiness. It has been found that the result of the process of developing communicative culture should be their awareness of the importance and understanding of the need for development and improvement to ensure quality education for preschool children through verbal and non-verbal means of communication, continuous updating of communicative knowledge, skills and abilities, improvement of cross-cultural interaction and reflection.
СУТНІСТЬ МОВЛЕННЄВО-КОМУНІКАТИВНОЇ КУЛЬТУРИ МАЙБУТНІХ УЧИТЕЛІВ ФІЗИЧНОЇ КУЛЬТУРИ В ТЕОРІЇ ПЕДАГОГІЧНОЇ ДУМКИ
Authors: Шквир Оксана , Chalyi Vadim
Published: September 2024

The article deals with the problem of developing the speech and communication culture of future physical education teachers in the context of disclosing the essence and content of the conceptual and terminological apparatus of the study. It is noted that future physical education teachers should have a high level of speech and communication culture to transfer their own communicative experience to children and ensure a quality educational process. The results of the analysis of the scientific and pedagogical literature showed the lack of a holistic and clear view of scientists on a single definition of key concepts. The content of the concepts «culture of language», «culture of speech», «speech culture», «communicative culture», «communication», which determine the speech and communication culture of future physical education teachers, is clarified. The author's interpretation of the speech and communication culture of future physical education teachers as the ability to use language means (lexical, grammatical, phonetic, etc.) in different conditions of communication in accordance with the purpose and content of speech to establish mutual understanding with school-age children and their parents, administration and colleagues in the educational institution is presented. In accordance with the content of the concepts, the components of the structure of future physical education teachers' speech and communication culture are highlighted: individual and personal (individual characteristics, ideals, attitudes, values, moral qualities, ethical norms); motivational and volitional (needs for self-knowledge, self-improvement, self-expression, communication); socio-psychological (empathy, self-perception, reflexivity, awareness of social role, etc;) individual-communicative (interconnection, mutual understanding, ability to establish and maintain contact, feedback, language competence, culture of thinking and speech, speech activity, communicative knowledge, skills); practical and active (correct use of the norms of the literary language, as well as compliance with the rules of speech etiquette).
Another Evidence to not Employ Customized Masked Hardware
Authors: Uhle Felix , Stolz Florian , Moradi Amir
Published: September 2024

As a well-studied countermeasure against side-channel analysis attacks, there is a general interest in applying masking to different cryptographic functions executed on different platforms. On the one hand, despite their high performance, masked hardware implementations are dedicated to specific algorithms, making them inflexible. On the other hand, applying masking on software involves serious challenges including significant overhead in terms of efficiency and difficulties to maintain theoretical security guarantees in practice. As a result, a line of research has been devoted to enable masked operations in flexible platforms (i.e., microprocessors) by including some masked modules in their hardware, hence a combination of flexibility and performance. In such scenarios, RISC-V is a natural choice as hardware can be adjusted to the extended instruction set. One such attempt presented at CHES 2021 is known as SCARV, which extends the Instruction Set Architecture (ISA) of a RISC-V core with a rich number of first-order masked operations on both Boolean and arithmetic masked operands. In this work, we conduct a comprehensive analysis of SCARV. Instead of relying on empirical measurements to demonstrate security, we utilize tool-assisted evaluations. Through these evaluations, we identified a couple of design flaws that lead to leakage in the masked implementations hosted by the corresponding processor. These flaws are primarily due to the lack of composability of cascaded components. While heuristic and ad-hoc design principles can result in secure, small, and efficient designs, they lack formal security proofs, which may lead to security flaws, like those we report here. Consequently, this work serves as a motivation for using composable masked modules and tool-assisted evaluations when constructing complex circuits.
A Not So Discrete Sampler: Power Analysis Attacks on HAWK signature scheme
Authors: Guerreau Morgane , Rossi Mélissa
Published: September 2024

HAWK is a lattice-based signature scheme candidate to the fourth call of the NIST’s Post-Quantum standardization campaign. Considered as a cousin of Falcon (one of the future NIST post-quantum standards) one can wonder whether HAWK shares the same drawbacks as Falcon in terms of side-channel attacks. Indeed, Falcon signature algorithm and particularly its Gaussian sampler, has shown to be highly vulnerable to power-analysis attacks. Besides, efficiently protecting Falcon’s signature algorithm against these attacks seems a very challenging task. This work presents the first power analysis leakage review on HAWK signature scheme: it extensively assesses the vulnerabilities of a central and sensitive brick of the scheme, the discrete Gaussian sampler. Knowing the output x of the sampler for a given signature leads to linear information about the private key of the scheme. This paper includes several demonstrations of simple power analysis attacks targeting this sample x with various attacker strengths, all of them performed on the reference implementation on a ChipWhisperer Lite with STM32F3 target (ARM Cortex M4). We report being able to perform key recoveries with very low (to no) offline resources. As this reference implementation of HAWK is not claimed to be protected against side-channel attacks, the existence of such attacks is not surprising, but they still concretely warn about the use of this unprotected signature on physical devices. To go further, our study proposes a generic way of assessing the performance of a sidechannel attack on x even when less information is recovered, in a setting where some protections are implemented or when the attacker has less measurement possibilities. While it is easy to see that x is a sensitive value, quantifying the residual complexity of the key recovery with some knowledge about x (like the parity or the sign of some coefficients) is not straightforward as the underlying hardness assumption is the newly introduced Module-LIP problem. We propose to adapt the existing methodology of leaky LWE estimation tools (Dachman-Soled et al. at Crypto 2020) to exploit the retrieved information and lower down the residual key recovery complexity. To finish, we propose an ad-hoc technique to lower down the leakage on the identified vulnerability points. These modifications prevent our attacks on our platform and come with essentially no cost in terms of performance. It could be seen as a temporary solution and encourages more analysis on proven side-channel protection of HAWK like masking.
Fault-Resistant Partitioning of Secure CPUs for System Co-Verification against Faults
Authors: Tollec Simon , Hadži´c Vedad , Nasahl Pascal , Asavoae Mihail , Bloem Roderick , Couroussé Damien , Heydemann Karine , Jan Mathieu , Mangard Stefan
Published: September 2024

Fault injection attacks are a serious threat to system security, enabling attackers to bypass protection mechanisms or access sensitive information. To evaluate the robustness of CPU-based systems against these attacks, it is essential to analyze the consequences of the fault propagation resulting from the complex interplay between the software and the processor. However, current formal methodologies combining hardware and software face scalability issues due to the monolithic approach used. To address this challenge, this work formalizes the k-fault-resistant partitioning notion to solve the fault propagation problem when assessing redundancy-based hardware countermeasures in a first step. Proven security guarantees can then reduce the remaining hardware attack surface when introducing the software in a second step. First, we validate our approach against previous work by reproducing known results on cryptographic circuits. In particular, we outperform state-of-the-art tools for evaluating AES under a three-fault-injection attack. Then, we apply our methodology to the OpenTitan secure element and formally prove the security of its CPU’s hardware countermeasure to single bit-flip injections. Besides that, we demonstrate that previously intractable problems, such as analyzing the robustness of OpenTitan running a secure boot process, can now be solved by a co-verification methodology that leverages a k-fault-resistant partitioning. We also report a potential exploitation of the register file vulnerability in two other software use cases. Finally, we provide a security fix for the register file, prove its robustness, and integrate it into the OpenTitan project.
Elastic MSM: A Fast, Elastic and Modular Preprocessing Technique for Multi-Scalar Multiplication Algorithm on GPUs
Authors: Zhu Xudong , He Haoqi , Yang Zhengbang , Deng Yi , Zhao Lutan , Hou Rui
Published: September 2024

Zero-knowledge proof (ZKP) is a cryptographic primitive that enables a prover to convince a verifier that a statement is true, without revealing any other information beyond the correctness of the statement itself. Due to its powerful capabilities, its most practical type, called zero-knowledge Succinct Non-interactive ARgument of Knowledge (zkSNARK), has been widely deployed in various privacypreserving applications such as cryptocurrencies and verifiable computation. Although state-of-the-art zkSNARKs are highly efficient for the verifier, the computational overhead for the prover is still orders of magnitude too high to warrant use in many applications. This overhead arises from several time-consuming operations, including large-scale matrix-vector multiplication (MUL), number-theoretic transform (NTT), and especially the multi-scalar multiplication (MSM) which constitutes the largest proportion. Therefore, further efficiency improvements are needed.In this paper, we focus on comprehensive optimization of running time and storage space required by the MSM algorithm on GPUs. Specifically, we propose a novel, modular and adaptive parameter configuration technique—elastic MSM to enable us to adjust the scale of MSM according to our own wishes by performing a corresponding amount of preprocessing. This technique enables us to fully unleash the potential of various efficient parallel MSM algorithms. We have implemented and tested elastic MSM over three prevailing parallel Pippenger algorithms on GPUs. Across various preprocessing space limitations (across various MSM scales), our constructions achieve up to about 1.90×, 1.08× and 1.36× (2.58×, 1.39× and 1.91×) speedup versus three state-of-the-art parallel Pippenger algorithms on GPUs, respectively.From another perspective, elastic MSM could also be regarded as a preprocessing technique over the well-known Pippenger algorithm, which is modular and could be used to accelerate almost all the most advanced parallel Pippenger algorithms on GPUs. Meanwhile, elastic MSM provides an adaptive trade-off between the running time and the extra storage space needed by parallel Pippenger algorithms on GPUs. This is the first preprocessing technique to retain the improved MSM computation brought by preprocessing under varying storage space limitations. Specifically, across various preprocessing space limitations (across various MSM scales), our constructions achieve up to about 192× and 223× (159× and 174×) speedup versus two state-ofthe- art preprocessing parallel Pippenger algorithms on GPUs, respectively.
pyecsca: Reverse engineering black-box elliptic curve cryptography via side-channel analysis
Authors: Jancar Jan , Suchanek Vojtech , Svenda Petr , Sedlacek Vladimir , Chmielewski Łukasz
Published: September 2024

Side-channel attacks on elliptic curve cryptography (ECC) often assume a white-box attacker who has detailed knowledge of the implementation choices taken by the target implementation. Due to the complex and layered nature of ECC, there are many choices that a developer makes to obtain a functional and interoperable implementation. These include the curve model, coordinate system, addition formulas, and the scalar multiplier, or lower-level details such as the finite-field multiplication algorithm. This creates a gap between the attack requirements and a real-world attacker that often only has black-box access to the target – i.e., has no access to the source code nor knowledge of specific implementation choices made. Yet, when the gap is closed, even real-world implementations of ECC succumb to side-channel attacks, as evidenced by attacks such as TPM-Fail, Minerva, the Side Journey to Titan, or TPMScan [MSE+20; JSS+20; RLM+21; SDB+24].We study this gap by first analyzing open-source ECC libraries for insight into realworld implementation choices. We then examine the space of all ECC implementations combinatorially. Finally, we present a set of novel methods for automated reverse engineering of black-box ECC implementations and release a documented and usable open-source toolkit for side-channel analysis of ECC called pyecsca.Our methods turn attacks around: instead of attempting to recover the private key, they attempt to recover the implementation configuration given control over the private and public inputs. We evaluate them on two simulation levels and study the effect of noise on their performance. Our methods are able to 1) reverse-engineer the scalar multiplication algorithm completely and 2) infer significant information about the coordinate system and addition formulas used in a target implementation. Furthermore, they can bypass coordinate and curve randomization countermeasures.
On the Deformation of a Round Three-layer Plate under the Action of a Surface Charge
Authors:   Saint Petersburg State University, Russia, Tikhonov Alexey A. , Naumova Natalia V. ,   Saint Petersburg State University, Russia, Yakovlev Andrey B. ,   Saint Petersburg State University, Russia, Ivanov Denis N. ,   Saint Petersburg State University, Russia, Dorofeev Nikita P. ,   Saint Petersburg State University, Russia
Published: September 2024

In this work there are the charging model and the results of calculations of electric charge density on the surface of the solar sail in the space. These results are used to estimate change of a sail form as a result of its electrifying in space plasma of solar system.
Estimating the Gourava Sombor Index
Authors:   University of Kragujevac, Faculty of Science, Serbia, Gutman Ivan , Kulli Veerabhadrappa R. ,   Gulbarga University, Department of Mathematics, Kalaburgi, India
Published: September 2024

The paper is concerned with the recently introduced vertex-degree-based graph invariant called Gourava Sombor index (GSO). Lower and upper bounds for GSO are obtained, in terms of Gourava index and the two Zagreb indices. For any graph, the upper bound is strict. Its improvements for special types of graphs are established.
Remarks on the Modified Second Zagreb Index on a Line Graph
Authors:   University of Niš, Faculty of Electronic Engineering, Niš, Serbia, Milovanović Igor , Milovanović Emina ,   University of Niš, Faculty of Electronic Engineering, Niš, Serbia, Matejić Marjan ,   University of Niš, Faculty of Electronic Engineering, Niš, Serbia, Stankov Stefan ,   University of Niš, Faculty of Electronic Engineering, Niš, Serbia
Published: September 2024

Let $G=(V,E)$, $V=\left\{ v_{1},v_{2},\ldots ,v_{n}\right\}$, be a simple graph of order $n$ and size $m$. Denote by $\Delta = d_1\ge d_2 \ge \cdots \ge d_n= \delta$, $d_i=d(v_i)$, and $\Delta_e=d(e_1)\ge d(e_2)\ge \cdots \ge d(e_m)=\delta_e$, sequences of vertex and edge degrees, respectively. If vertices $v_i$ and $v_j$ are adjacent in $G$, we write $i\sim j$. The modified second Zagreb index is defined as $M_2^*(G)=\sum_{i\sim j} \frac{1}{d_id_j}$. In this paper we determine some new upper and lower bounds on $M_2^*(G)$ for a line graph L(G) of G.
On Some Selection Principles in the Space of G-permutation Degree
Authors:   State University of Novi Pazar, Serbia, Kočinac Ljubiša D. R. , Mukhamadiev Farkhod G. ,   National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan, Sadullaev Anvar K. ,   Kimyo International University in Tashkent, Tashkent, Uzbekistan
Published: September 2024

In this paper, we study several selection and star selection principles in the space of G-permutation degree SPnGX. In particular, we consider such selection properties P for which SPnGX has P if and only if X has P.
Crowd Scenes in Péter Nádas’ Parallel Stories
Authors: Kenderesy Anna
Published: September 2024

The article examines the representation of the crowd in Péter Nádas’s Parallel Stories. In the plot, there are multiple scenes including the masses that highlight different features of the phenomenon. I argue that the 1956 Hungarian Revolution appears in the novel as a fundamental experience of society, influencing the nature of people’s gatherings even after its defeat. Firstly, I show that the characteristics of the swarm appear in the cooperation of people foraging for food during the revolution. However, the bread queue represents the extreme behaviour and the aggression of the acquisitive masses, whose collective action is always directed at acquiring something. Thereafter, I examine the representations of crowd panic in the basement scene of the 1956 cannonade and of the 1957 railway station gathering. Finally, I scrutinise two scenes with the seemingly liberated and intoxicated crowd. The analysis focuses on the relationship between the crowd and the individual, on the narrative representation of the crowd, on its influence on the participants’ perceptions, and the associated attributes.
Medical Metaphors in the Thirteenth-Century Sermon Collection of Pécs
Authors: Kovács Annamária
Published: September 2024

The Pécs University Sermons were composed at the end of the thirteenth century in Hungary, probably at a studium generale. The sermons contain many references from classical authors and philosophers. Among other things, they use numerous scientific and natural philosophical citations in their argumentation. This article focuses specifically on the medical quotations.
The use of medical motifs in theological argumentation has a long tradition: both the Bible and the Church Fathers drew an analogy between physical and spiritual healing. In the thirteenth century, however, this biblical tradition was transformed as theologians increasingly supplemented the biblical tradition with medical literature. In my paper, I examine how the biblical tradition and medical literature appear in the Pécs University Sermons and with what rhetorical aim medicine is used. Through the exemplary analysis of selected sermons, I present the different rhetorical situations in which medicine appears, and I argue that medical literature is not only used to complement the biblical tradition but that the medical quotations themselves could be the starting point for medical argumentation. I also examine which sources the author used and show that he quotes a lesser-known anatomical source, the Anatomia vivorum.