bluuebunny/crossref_metadata_2025 huggingface dataset:
MUSCULOSKELETAL CHANGES IN PREGNANCY
Authors: Deuja Pratigya
Published: February 2025

Pregnancy is a normal physiological condition that alters the biomechanics, hormone regulation and vascular dynamics to provide a suitable environment for fetal growth. These physiological alterations are associated with a diverse array of musculoskeletal problems. The musculoskeletal changes vary and intensify as pregnancy progresses through the trimesters. The first trimester includes low back pain and muscle cramps the second includes low back pain, cramps, edema, and carpal tunnel syndrome, whereas the third includes mental stress, leg cramps, edema, and carpal tunnel syndrome. Low back pain is the most common condition, with a prevalence of approximately 30% to 70%.The higher prevalence is due to socio-cultural and environmental factors like housework and working conditions, multipara, increased body mass index before pregnancy, anxiety, depression, violence, and poor antenatal care. The major reasons for musculoskeletal pain include 1) Hormonal surges that increase joint laxity, creating joint pain 2) Weight gain, changing the center of gravity and altering posture, producing low back pain and pelvic girdle pain 3) Fluid retention compressing the soft tissue, presenting conditions like carpal tunnel syndrome and tarsal tunnel syndrome and 4) Neuro-mechanical changes which can disrupt gait, leading to imbalance and reduced equilibrium, which increases the risk of falls. These factors lead to changes in the structure from decreasing bone density to softening the ligament, changes from posture to neurological and vascular alterations. This literature will have an explanation about how the given factors hormonal surges, weight gain, fluid retention, along with other factors work synchronously to create the pain during and after pregnancy.
FAMILIAL HYPERALDOSTERONISM: ABOUT A REVEALING SIBLING OF TWO AND SYSTEMATIC REVIEW
Authors:   Department of Endocrinology, Diabetes and Metabolism, Mohamed 6 University Hospital- Faculty of Medicine and Pharmacy - Cadi Ayyad University - Marrakech - Morocco., Dassoufi Rania , Chaari Inass ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco., Idrissi Ayoub ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco., Abainou Lahoucine ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco., Jadi Hamza El ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco., Meftah Azzelarab ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco., Baizri Hicham ,   Department of Endocrinology, Diabetes and Metabolism, Avicenne Military Hospital- Marrakech- Morocco.
Published: February 2025

Introduction:Bilateral primary aldosteronism may be caused by genetic forms, including familial hyperaldosteronism (FH) types I to IV. The management of this particular condition refers to medical treatment in spite of surgical procedures. In this article, we report on the family case of a sibling through 2 index patients followed in our department.

Case Report: 59-year-old patient followed in our training for a secondary hypertension due to a confirmed left conn adrenal adenoma family history of a similar case in the sister with confirmed adrenal Conn adenoma causing hypertension diagnosed in the early forties in all the siblings and some other family members with a history of cerebral strokes. Our department postponed the surgical management planned for the sister in favour of a medical approach, which will be decided on the basis of the response to dexamethasone treatment in our two patients, in the absence of possibilities for genetic typing tests.

Discussion and Conclusion: There are 4 types of familial hyperaldosteronism, whose characteristics and genotype/phenotype correlation are very diverse. Type 1, as we suspected in our family, is characterised by a prevalence of stroke and a satisfactory response to corticosteroid therapy, particularly dexamethasone, as both a diagnostic and therapeutic test. Management has long depended on the attitudes of the medical teams, but the scientific societies of endocrinology have now issued well-coded diagrams and guidelines for screening and treatment of these cases, increasingly favouring a medical approach rather than the invasive, and often bilateral, surgery previously practised.
RECURRENT MOLAR PREGNANCY: MANAGEMENT APPROACH FOR A WOMAN WITH AN EIGHTH MOLAR PREGNANCY AND A DESIRE FOR CONCEPTION - A RARE CASE REPORT
Authors:   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., Laaouini K. , Lamsyah S. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., BendahouIdrissi M. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., Mamouni N. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., Errarhay S. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., Bouchikhi C. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1., Banani A. ,   Hassan II University Hospital of Fez, Department of Gynecology and Obstetrics 1.
Published: February 2025

Molar pregnancy belongs to the group of gestational trophoblastic diseases. It is a relatively rare condition, with recurrent forms being exceptional. In most cases, treatment consists of simple aspiration of the conception product followed by biological monitoring however, chemotherapy or even hysterectomy may be required in some cases. Proper and rigorous management is crucial for prognosis. We report the case of a young woman treated for an eighth molar pregnancy without a living child. The objective of this study is to investigate the risk factors associated with recurrent molar pregnancies and to discuss the management of this extremely rare case through our clinical observation and a literature review.
Constitutional Meaning of the European Court of Auditors(ECA) in the European Union (EU)
Authors:   European Constitutional Law Association, Jeong Munsik
Published: February 2025

If we look at the constitutional meaning of the European Court of Auditors(ECA) through the financial control carried out by the ECA within the European Union, it can be summarized as follows.
First, from the perspective of democratic principles, the financial control of the EU budget carried out through the audit work of the ECA supports the financial control of the European Parliament, which can be seen as the representative body of EU citizens, and the European Council, which can be seen as the representative body of member states. It can be evaluated as being responsible for the following functions. In terms of democratic principles, the financial control function of the Board of Audit and Inspection can be said to be similar.
Second, the audit scope of the ECA is recognized for all institutions that have made EU budget income and expenditures, but in terms of audit work efficiency and independence in audit work performance, the ECA exercises independent authority in that it determines and performs the audit scope at its discretion.
Third, due to the limitations of the authority under the European Union Treaty, the member state audit institutions and the ECA establish a cooperative relationship in auditing the EU budget execution while recognizing the independence of each other's audit institutions. On the other hand, this is an aspect that passively confirms how important and necessary the financial control of a community is, whether a member state or the European Union.
Fourth, the ECA's audit can confirm that the rule of law principles are being realized in terms of evaluating the legitimacy and efficiency of EU budget execution. However, in this case, the ECA's audit results are not legally binding, but in fact have a real influence on EU institutions or member state institutions, so their effect is limited to having a political or advisory effect, not a legal enforcement effect.
Étude juridique comparative sur le territoire de la collectivité territoriale : En analysant des exemples français
Authors:   European Constitutional Law Association, KIM Ji-Young
Published: February 2025

Condition de l'existence de l'État, le territoire est aussi un élément de l'organisation de l'Etat. Dans chaque Etat, les pouvoirs publics procèdent à un découpage du territoire pour le gouverner et l'administrer. L’État a le pouvoir de décider une délimitation et une modification des territoires de sa volonté. Lors de la modification ou délimitations des limites des collectivités territoriales, l'État ne peut pas porter atteinte à la libre administration des collectivités territoriales qui est reconnue par la Constitution. Il faut tenir compte des dispositions de la Constitutiton qui réserve au législateur la détermination des principes fondamentaux de la libre administration des collectivités locales. Si l'État possède un pouvoir central relatif au territoire, il a l’obligation de respecter des procédures démocratiques pour tenir compte des avis de l’habitant. L’existence et les limites territoriales des collectivités ne sont garanties que par la loi. Les citoyens d’une collectivité territoriale peuvent, parfois, avoir l’initiative des changements de périmètre d’une collectivité territoriale, mais ils n’ont plus la décision finale à cet égard.
En analysant le système juridique en Corée et en France, on peut trouver des ressemblances; en premier lieu, l'Etat est seul compétent pour décider de déterminer des limites des collectivités territoriales. En seconde lieu, discrétionnaires, les décisions d’autorité compétente en matière des délimitations du territoire sont soumises au contrôle du juge de recours pour excès de pouvoir ou le recours d’annulation qui est jugé par le contrôle restreint. En troisième lieu, la loi relative à la collectivité territoriale ne dispose explicitement pas les critières de la délimitation du territoire. Cela provient des caractères de la législation propre.
En analysant le système juridique en Corée et en France, on peut constater les distinctions. En France, les juges du fond n'ont pas reconnu l'erreur de droit du préfet qui s'était estimé lié par la consultation. Ils ont repoussé ensuite l'erreur manifeste d'appréciation qu'il aurait commise en tenant compte de l'échec de la consultation, de la brièveté du délai imparti pour se prononcer et de la sortie de vigueur programmée des dispositions considérées. De plus, l’initiative des modifications aux limites territoriales des communes appartient aux assemblées délibérantes, à la population, ou au représentant de l’État. La modification des limites territoriales n’est pas un droit pour le demandeur. Le préfet peut en contrôler la régularité et l’opportunité. Sa décision n’est soumise qu’à un contrôle restreint. Toutefois, en Corée, en ce qui concerne les contentieux realtive à la modification du territoire, la possibilité du recours de la collectivité locale est fortement restreinte. De plus, il faut réviser la législation pour tenir compte de la légitimité procédurale et démocratique.
Current research status on the occupational hazards of hand-transmitted vibration: a case study in China
Authors: Yang Jian , Wu Mingzhong
Published: February 2025

The hazards arising from long-term hand-transmitted vibration operations can cause significant damage to the human body. As China is a populous country, understanding the current situation of vibration exposure among workers in various related fields in China holds significant reference value. To this end, this paper analyzes data from core journal literature in China from the 1980s to the present based on the keywords hand-arm vibration disease, hand-transmitted vibration, and occupational exposure. This paper provides an overview of the current status of hand-transmitted vibration hazards, including the distribution characteristics, hazards, and diagnostic methods of hand-arm vibration disease, as well as the deficiencies in these diagnostic methods. It also integrates data on the vibration intensity, frequency, and prevalence of vibration tools to analyze the relationship between the prevalence of hand-arm vibration disease and the vibration intensity and frequency of vibration tools. The results indicate that the vibration tools causing occupational hand-arm vibration disease are primarily found in the mining and manufacturing industries, with rock drilling jobs and positions being dominant in the mining industry and grinding jobs and positions being dominant in the manufacturing industry. The A(4) values of grinding tools, jobs, or positions are significantly higher than China’s limit value of 5 m/s2 for hand-transmitted vibration. The A(4) distribution of rock drilling tools is more concentrated, while the A(4) distribution of grinding tools is broader. The current diagnostic methods have poor specificity and sensitivity. There is insufficient awareness of the hazards of hand-transmitted vibration. There is no significant correlation between A(4) and the prevalence of vibration white finger (P>0.05), and A(4) alone is insufficient to reflect the extent of harm caused by hand-transmitted vibration operations to the human body. Both low-frequency and high-frequency vibrations may be harmful to the human body, and there may be a positive correlation between the fundamental frequency of vibration tools and the prevalence of disease (r>0,P<0.05).
LA IMPORTANCIA DEL APRENDIZAJE ORGANIZACIONAL EN LA CALIDAD DE LAS UNIVERSIDADES: UN ESTUDIO CUALITATIVO
Authors: Rodriguez-Ponce Emilio , Rodriguez Carmen
Published: February 2025

Este estudio tiene como objetivo explorar la posible influencia del aprendizaje organizacional en la calidad de las universidades. Para ello, se lleva a cabo un diseño metodológico cualitativo y se entrevista a 10 altos directivos de una universidad chilena calificada con un nivel de excelencia por la Comisión Nacional de Acreditación. La información recopilada fue codificada, analizada e interpretada, teniendo en cuenta elementos clave de las entrevistas para identificar los principales hallazgos sobre la relación entre ambas variables. Los resultados indican que, en la universidad analizada, el ámbito académico ha experimentado mejoras significativas en los últimos años. Además, se considera que los sistemas de adquisición de información y conocimiento son esenciales para lograr un aprendizaje organizacional sistemático y mejorar la calidad institucional, mientras que la memoria organizacional es fundamental para el mejoramiento cualitativo de la institución. Se concluye que la mejora de la universidad está estrechamente ligada al aprendizaje que ha experimentado la institución en un proceso de crecimiento continuo y sistemático.
Compostagem de Resíduos Orgânicos e Educação Ambiental: Uma Análise do Ciclo de Vida em uma Escola de Educação Básica
Authors: Walgenbach Patrícia Jardim Silva , Graciano Marcos Junio de Souza , Dias Lucas Danilo
Published: February 2025

Os resíduos orgânicos representam mais de 50% dos resíduos sólidos no Brasil, e a compostagem oferece uma solução viável para seu tratamento. Este estudo teve como objetivo implementar um sistema de compostagem em uma escola de ensino básico da rede estadual no município de Anápolis-GO e avaliar o impacto do composto no cultivo de hortaliças, além de promover a conscientização ambiental entre os estudantes da escola. Foram coletados resíduos orgânicos verdes durante 19 dias, que passaram por compostagem ao longo de 90 dias. O composto resultante foi utilizado no cultivo de alface (Lactuca sativa) e cebolinha (Allium schoenoprasum), comparando-se com o crescimento em solo virgem. O composto apresentou características de alta qualidade, como coloração escura e odor de terra. As hortaliças cultivadas no composto mostraram maior massa fresca e altura em comparação ao solo virgem. Os resultados indicam que o composto produzido a partir de resíduos escolares é eficaz como adubo, promovendo o crescimento das plantas e reforçando o papel da compostagem na educação ambiental e na sustentabilidade no ensino básico.
The Dynamics of Climate Change and Environmental Security in Nigeria
Authors: Nwanegwo Kelechi Christopher , Fajemoroye James Oluwagbamigbe , Udochu Eke , Dutra e Silva Sandro
Published: February 2025

Climate change and environmental security are ongoing challenges in Nigeria. This literature review explores the dynamics of climate change and environmental security alongside proposed solutions. The study employs qualitative research, primarily drawing on reports from international NGOs that address climate change and ecological security in Nigeria. It also utilizes content analysis based on literature, additional bibliographies, and published academic works. The results indicate that the issue of climate change in Nigeria still requires further exploration, as no reports provide in-depth investigations. However, they also show the emergence of debates concerning the problem in both the political and academic spheres. Regarding official documentation, they highlight that Nigeria has adopted policies aimed at significant domestic adaptations to international agreements and treaties to mitigate the effects of climate change. However, research indicates that these efforts have not effectively addressed the consequences of climate change, resulting in more significant environmental degradation. The article highlights the shortcomings in the ways government agencies and other institutions have addressed climate change in Nigeria, including legal and institutional limitations, corruption, and governance deficiencies.
Personalidade e Ruptura Conjugal de Casais Heterossexuais: Uma Revisão Integrativa
Authors: Espindola Marisa Mota da Silva , Costa Neto Sebastião Benício da
Published: February 2025

O objetivo deste estudo é realizar uma revisão sistemática de artigos científicos sobre personalidade e ruptura conjugal de casais heterossexuais, analisando o que a literatura discute sobre esta temática, a partir da Teoria dos Cinco Grandes Fatores (big five) como referencial teórico para análise da personalidade. Por meio de consultas às bases de dados Scielo, CAPES e BVS, foram encontrados 7 artigos, dos quais 2 foram selecionados. Um deles, que mais se aproximava desta pesquisa, foi colocado no programa de Inteligência Artificial Research Rabbits, que rastreou 5.200 artigos relacionados. Após o filtro dos últimos 8 anos, foram selecionados 9 artigos, totalizando 11 artigos para avaliação depois da verificação de um juiz independente. A análise da literatura mostrou um panorama internacional e nacional sobre o estudo do tema proposto, evidenciando que há poucas publicações e estudos no Brasil que correlacionam a personalidade como elemento de ruptura conjugal em casais heterossexuais. Observou-se, contudo, que há um consenso de que a personalidade está diretamente ligada à satisfação no relacionamento e que ela interfere no processo de ruptura, principalmente quanto ao fator neuroticismo.
Palavras-chave: Personalidade; ruptura; conjugalidade; satisfação.
Digital crime: the concept, criminological features, problems of counteraction
Authors:   Penza State University, G. Romanovskiy Vladislav
Published: February 2025

Background. The development of digital technologies has led to the emergence of a new type of crime – digital, which in the broadest sense of the word is understood as a set of crimes committed in cyberspace with the help of digital technologies. At the same time, additional terms are used – cybercrime, high-tech crime, which in most studies are considered synonymous. This contributes to the emergence of a new section – digital crim-inology, which largely overcomes the established conservative principles of analysis of modern crime. These circumstances update research on digital crime. The presented theses and proposals can be used both in Russian legal science and in the practice of investigating crimes committed in cyberspace. The purpose of the study is to conduct a study of the con-cept of digital crime; highlight its features; systematize the main features proposed in both domestic and foreign doctrine; identify the key problems of combating crimes in cyber-space. Materials and methods. Research problems were solved through scientific analysis of a wide range of sources on key aspects of digital crime. As a research method, first of all, a comparative legal one was used, which made it possible to explore the concept of digital crime and compare it with similar terms used by foreign law enforcement agencies (USA, UK, People's Republic of China). Methods of legal statistics were used, thanks to which trends in the development of cybercrime are identified. Results. The general concept of dig-ital crime is presented, its influence on modern criminological science is shown. Conclu-sions. The article formulates general conclusions about the continued trend of expanding digital crime, the emergence of new subjects of criminal law (Artificial intelligence, an-thropoid robots), the development of digital criminology, and the transformation of the principles of criminal law.
Features of tactical and special training for police officers in modern conditions
Authors:   Penza State University, V. Elistratov Denis
Published: February 2025

Background. The issues of improving the theory and practice of tactical and spe-cial training of employees of internal affairs bodies (IAB) in modern conditions, in which fundamentally new threats arise - attacks on the internal affairs bodies' own facilities by army armed groups, including sabotage ones, have been updated. Therefore, the aim of the study was to find new approaches to organizing and conducting classes on tactical and spe-cial training of the personnel of the Internal Affairs Directorate, including abandoning the principle of causing the least harm to the attacker, in the event of an armed attack on a In-ternal Affairs Directorate facility, taking into account, within the framework of tactical and special training, certain training elements used in the Armed Forces. Materials and meth-ods. The study was conducted by analyzing the norms of Russian legislation and the works of domestic legal scholars. Regulatory legal acts, the provisions of which should be taken into account in the framework of tactical and special training, were considered. Results. Tactical and special training of police officers in modern conditions can be criticized from the point of view of the lack of deep differentiation depending on the employee’s previous training. When determining options and models of behavior, police officers must take into account the requirements of the law and not allow the permissible limits of violent influ-ence on the offender to be exceeded. Conclusions. When armed army units encroach on objects of the Internal Affairs Directorate, the principle of causing minimal harm to the encroacher is extremely inappropriate and erroneous, and its application will only lead to the death of the Internal Affairs Directorate employees and the seizure of the object. It would be advisable to introduce into the practice of tactical and special training the meth-ods that are used in training army units.
The nature and features of ageism manifestation in relation to the younger generation in the labor market
Authors:   Financial University under the Government of the Russian Federation, V. Prokazina Natalia , A. Yukhnevich Yana ,   Financial University under the Government of the Russian Federation
Published: February 2025

Background. In modern conditions, manifestations of discrimination in the labor market are quite common. One of the grounds for discrimination in modern society, in general, and in the labor market, in particular, is age discrimination – ageism. However, re-search into this problem and assessment of its real scale have certain limitations. Therefore, the study of problems of discrimination in the labor market from the standpoint of sociological analysis will allow us to assess the real nature, scale of discrimination in the labor market and identify the forms and features of manifestation. The purpose of the article is to identify the essential characteristics and features of ageism manifestation in relation to the younger generation in the labor market. Materials and methods. The conclusions and provisions are based on the results of international studies on the topic of ageism, the results of all-Russian studies of problems of discrimination based on age in the labor market and the results of the author's pilot study of ageism. The theoretical basis for the conclusions ob-tained was the theory of generations by W. Strauss – N. Howe and the concept of public opinion formation by Walter Lippmann. Results. The conducted analysis allows us to con-sider ageism as a social phenomenon that includes behavioral and emotional components based on the age stages of a person's life. It is argued that ageism manifests itself both in relation to representatives of the older and younger generations. The essential characteris-tics of ageism manifestation in relation to the younger generation are defined: disrespectful attitude on the part of older colleagues; disbelief in the formation of personal and professional qualities; an attitude towards lack of initiative, infantilism, irresponsibility of representatives of the younger generation; shifting routine and meaningless types of work to them; low level of trust. Conclusions. In the labor market, not only discrimination against older age groups is manifested. Today, ageism is noticeable in relation to the younger generation. A demand is being formed for research into ageism in relation to the younger generation as a manifestation of a form of discrimination in the labor market.
FLIGHT NAVIGATION ELEMENTS AN UNMANNED AERIAL VEHICLE
Authors:   Penza State University, I. Godunov Anatoly , A. Kukanov Sergei ,   Branch of the Military Academy of Logistics named after Army General A.V. Khrulev in Penza, S. Suzdaltsev Pavel ,   Branch of the Military Academy of Logistics named after Army General A.V. Khrulev in Penza
Published: February 2025

Background. This article discusses the problem of navigation and control of unmanned aerial vehicles (UAVs). To ensure the effective performance of the flight task, it is proposed to take into account the calculations of the navigation elements of the flight of an unmanned aerial vehicle, the feature of the proposed method is the ability to evaluate the characteristics and parameters of elements that affect the trajectory and accuracy of flight. Various factors are taken into account, such as the aerodynamic properties of the UAV, environmental conditions, navigation and control systems. Materials and methods. The article presents mathematical models and algorithms for calculating optimal navigation elements, which allow to achieve the best efficiency of the flight task. The proposed approach differs from existing methods in the possibility of more accurate determination of the trajectory and maneuvers of the UAV. Results and conclusions. The results of the study can find practical application in the development of UAV control and navigation systems for various purposes, increasing their accuracy, reliability and efficiency of tasks. The presented methods can be used in civil and military aviation, as well as in other areas where unmanned aerial vehicles are used.
INVESTIGATION OF ALGORITHMS FOR MEASURING THE COMPONENTS OF THE VELOCITY VECTOR OF RADIO ALTIMETER SYSTEMS ADAPTIVE TO THE UNDERLYING SURFACE
Authors:   Ural design bureau "Detal", V. Vasilieva Anna
Published: February 2025

Background. The current stage of aviation development is characterized by a steady tendency to increase requirements for the tactical and technical characteristics of aircraft, including navigation systems. A natural consequence of this tendency is the increasing role and importance of radar sensors of navigation information. These include radio altimeter systems (RAS), which measure the altitude and components of the velocity vector in a linked coordinate system. At present, an urgent task is to improve the accuracy of RAS characteristics over heterogeneous complex surfaces. Materials and methods. Considers the following methods for solving the problem: adaptation of algorithms for estimating the components of the RAS velocity vector to the underlying surface by changing the pulses time depending on the value of the aircraft flight altitude; adaptation of algorithms for estimating the components of the RAS velocity vector to the underlying surface by changing the antenna system configuration; adaptation of algorithms for estimating the components of the RAS velocity vector to the underlying surface by switching the RAS frequency. Results and conclusions. Methods usage will significantly improve the tactical and technical characteristics of both existing RAS and new developments, and will reduce the time of development.
ASSESSING THE PERFORMANCE QUALITY OF MULTICRITERIA NEURAL NETWORK STATISTICAL ANALYSIS USING THE EXAMPLE OF TESTING THE HYPOTHESIS OF INDEPENDENCE OF SMALL SAMPLE DATA
Authors:   Penza Scientific Research Electrotechnical Institute, I. Ivanov Aleksandr , I. Ermakova Anna ,   Penza State University
Published: February 2025

Background. The purpose of the article is to create a quality criterion for assessing the effectiveness of neural network processing of small samples in multicriteria testing of the independence hypothesis. Materials and methods. To date, about 200 statistical criteria for testing the hypothesis of independence of a small sample are known. Using them together can significantly improve the quality of decisions made by the neural network. In this regard, the problem of effective comparative assessment of the achieved quality by one or another neural network arises. Results and conclusions. It is proposed to evaluate the quality of a neural network solution by the achieved increase in the sample when analyzing it using a single Pearson-Edleton-Edgeworth criterion of the late 19th century on a large sample in the most difficult situation of testing the independence hypothesis.
PHYSICAL FEATURES OF THE PROCESSES OF DEFORMATION AND DESTRUCTION OF THE MATERIAL BY THE FINITE NODE METHOD
Authors:   Penza State University, I. Godunov Anatoly , A. Kukanov Sergei ,   Branch of the Military Academy of Logistics named after Army General A.V. Khrulev in Penza, V. Baklanov Dmitry ,   Branch of the Military Academy of Logistics named after Army General A.V. Khrulev in Penza
Published: February 2025

Background. In this article, deformations and destruction of the composite sleeve material in the contact area of two different materials (steel and polyamide) are studied using a mathematical model of the Galerkin discontinuous method. The peculiarity of the study is that this method preserves the mass and kinetic characteristics in the nodes of the model, destruction occurs when the yield point is reached. Also, for an adequate description of the destruction, the Mi-Gruneisen equation of state of matter is given for each material. Materials and methods. The procedure of modeling is considered in order to optimize and select optimal technical solutions using software systems for modeling fracture based on the finite node method and comparing the results obtained with mathematical calculations based on the mathematical model of the discontinuous Galerkin method. Results and conclusions. As a result of the study, the problem of calculating the strength of the developed composite sleeve was solved not only along its entire length, but also at the junction of two different materials, taking into account the shearing force in the area of their adhesive connection.
DESIGNING A SIMULATION MODEL OF A TEMPERATURE SENSOR UNDER CRITICAL TEMPERATURE AND SINUSOIDAL VIBRATION CONDITIONS
Authors:   Penza State University, A. Fokina Ekaterina , A. Trofimov Aleksei ,   Penza State University, N. Ponomarev Vladislav ,   Penza State University, A. Zbodnov Sergey ,   Penza State University
Published: February 2025

Background. Vibration measurement is one of the most popular and cost-effective methods of diagnosing the overall condition of equipment and is of undeniable importance in modern technology. Thanks to this process, manufacturers and consumers can be sure of the reliability and quality of technical systems, as well as prevent possible breakdowns and failures. And the wide scope of vibration measurements in various fields confirms their versatility and importance in modern technical progress. The purpose of measuring the effects of critical temperatures on a temperature transducer is to determine how a change in critical temperature can affect the accuracy and reliability of the transducer. This will improve the quality of temperature measurement, eliminate inaccuracies and errors in equipment performance, and increase the efficiency of the equipment in various operating conditions. Materials and methods. The research method in this paper is a simulation model of the sensor, which is used to test for vibration and exposure to critical temperatures. Ansys and SolidWorks Simulation software are used to create the model to avoid costly and time-consuming test cycles. Results. As a result of the simulation modeling, the epuples of mechanical stress distribution under sinusoidal vibration and the epuples of temperature distribution under critical temperatures were constructed.
THE LAYOUT OF ON-BOARD ELECTRONIC SYSTEMS WITHOUT RESONANT BLOCKS USING DOUBLE-LAYER PRINTED CIRCUIT BOARDS WITH A RIGID BASE
Authors:   independent researcher, I. Frolov Sergey , A. Danilova Evgeniya ,   Penza State University, I. Kochegarov Igor ,   Penza State University
Published: February 2025

Background. The aim of the work is to develop an engineering methodology for calculating printed circuit board assemblies with a rigid substrate. The analysis of methods and techniques for calculating resonance-free (in the operating frequency range) electronic units of on-board radio-electronic equipment (OREEq) and, in general, the design of resonance-free electronic units is carried out. The modeling of natural oscillation frequencies for various methods of fixing printed circuit board assemblies is carried out. Matherials and methods. The mathematical principles of the theory of mechanical oscillations are applied to obtain analytical expressions for the natural oscillation frequency of structures. The ANSYS software package was used for test comparison of the obtained results. Results. The modeling of natural oscillation frequencies for various methods of fixing printed circuit board assemblies is carried out. Numerical solutions are obtained for various variants of multilayer printed circuit boards differing in thickness and substrate materials. The accuracy of calculations of the natural oscillation frequency is assessed. A method for creating resonance-free electronic units of OREEq is proposed and recommendations are given for creating technological resonance-free designs of OREEq units based on the use of modern substrate materials for printed circuit boards. Conclusions. The results of the work in the form of recommendations for increasing the rigidity of the cylindrical structures of onboard electronic equipment will allow creating more reliable structures due to improved vibration resistance. Prompt, well-founded selection of printed circuit board mounting schemes at early design stages will reduce the work time.
A MODEL STUDY OF THE INFLUENCE OF THE SHAPE OF VARIABLE-PHASE FIELD DISTRIBUTION AREAS ON ANTENNA RADIATION
Authors:   Saint Petersburg State University of Aerospace Instrumentation, N. Yakimov Aleksandr
Published: February 2025

Background. In radio engineering systems for various purposes, microwave antennas with a radiation pattern of a sector type are used to solve problems at maximum ranges in a wide range of angles. To form such a directional pattern in an antenna, it is necessary to create a variable-phase distribution of excitation sources (currents or fields). A model study of the influence of the shape of individual areas by the variable-phase field distribution in the aperture of a microwave antenna on the parameters of its quasi-sector radiation pattern can be carried out by representing this distribution by a combination of mathematical functions using predicate logic. Materials and methods. An approach to solving this problem is proposed based on the use of the additivity property of a definite integral, which allows replacing it with the sum of definite integrals taken over partial intervals and independently controlling the distribution of the field over these intervals. At the same time, it becomes possible to additionally control the shape of individual areas of the variable-phase field distribution in the aperture of the microwave antenna by changing the degree of functions describing these areas. The possibility of software implementation of the proposed mathematical model in the MATLAB system using predicate logic is shown. Results and conclusions. The results of a model study of the influence of the shape of individual sections of the variable-phase field distribution in the aperture of a microwave antenna on the main parameters of its radiation pattern are presented. The results obtained indicate the prospects of a model representation of the variable-phase field distribution in the aperture of a microwave antenna with a quasisector radiation pattern by combination of trigonometric functions of arbitrary degree using predicate logic to study the influence of the shape of its individual areas on the radiation pattern of this antenna and improve its parameters.
O ensino de ciências e a avaliação da aprendizagem: uma abordagem dialógica na escola pública por meio dos grupos interativos
Authors:   , Ferreira José dos Santos
Published: February 2025

A relevância problematizada pelo dialogismo trabalhado nos Grupos Interativos e a aplicação deles na escola, possibilita aos alunos a compreensão das transformações que ocorrem no mundo físico, das informações adquiridas ou de conhecimentos pré-estabelecidos. O objetivo geral desta pesquisa é compreender os possíveis impactos causados na práxis educacional vigente na escola, a partir dos processos da avaliação da aprendizagem escolar, nos anos finais do ensino fundamental, relacionando com a aprendizagem dialógica, paradigmas educacionais e tendências tradicionais avaliativas no ensino de Ciências por meio dos Grupos Interativos. Para isso, seguimos um caminho metodológico onde realizamos um levantamento de dados através da produção de dois estados do conhecimento, investigando produções referentes à temática problematizada. Realizamos também, uma Pesquisa-Ação e uma entrevista em Grupo Focal, ambas aplicadas a uma turma do último ano do ensino fundamental. Classificamos a pesquisa como descritiva e quanto a abordagem dos dados coletados, foram realizados de forma qualitativa, embasada e dialogada com teóricos que discutem a Aprendizagem Dialógica como Vygotsky (1983, 1999, 2008), Freire (1983, 1996, 2001), Freire e Schor (1996), Flecha (1997), Ferrada e Flecha (2008), Braga, Gabassa e Mello (2010) e Braga e Mello (2014). Ênfase na avaliação com Luckesi (2000, 2011, 2013), Vasconcellos (1998), Perrenoud (1999) e ênfase na epistemologia da educação em Ciências, com Santos (2003), Alves (2009) e no ensino de Ciências com Bizzo (2002), Cachapuz et al. (2005), Pozo e Crespo (2009), dentre outros. Os dados analisados e discutidos seguem a Análise de Conteúdos de Bardin (2009, 2011) e estão caracterizados em relação ao teor bibliográfico e documental. Os resultados sugerem pertinência ao nortear processos avaliativos sobre o ensino de Ciências, fidelidade nas características atribuídas ao nível de ensino, que são os anos finais do ensino fundamental, interrelação entre paradigmas e tendências tradicionais com práticas dialógicas e interativas na avaliação da aprendizagem. Sugerem também, melhores relacionamentos entre aluno/aluno e professor/aluno, indicam caminhos possíveis de serem seguidos a partir de metodologias avaliativas que utilizem da interação e do dialogismo, dentre outros resultados que contribuem para facilitar a aprendizagem, aperfeiçoar o ensino e melhorar a qualidade da educação básica
Fractais na formação de professores: um estudo interdisciplinar no curso de licenciatura em matemática da Universidade do Estado do Rio Grande do Norte
Authors:   , Oliveira Paula Roberta Mendes de
Published: February 2025

Esse trabalho tem como objetivo compreender as potencialidades da Geometria Fractal como proposta didático-metodológica interdisciplinar na formação do professor de Matemática a partir de discussões com os alunos de Licenciatura em Matemática, futuros atores responsáveis também por esse processo. Para isso, realizamos uma pesquisa de natureza qualitativa exploratória com algumas características da pesquisa-ação com uma turma de alunos da disciplina Laboratório de Prática de Ensino-Aprendizagem em Matemática II do 5º período do Curso de Licenciatura em Matemática da Universidade do Estado do Rio Grande do Norte, Campus Central. Assim, trazemos como resultado, o olhar dos licenciandos sobre os materiais didáticos apresentados que tem como base a Geometria Fractal para o ensino de matemática, essa geometria que surgiu junto com a Teoria do Caos, algo novo, diferenciado para os licenciandos e intimamente ligada a interdisciplinaridade. Além disso, realizamos um estado do conhecimento sobre a abordagem dessa nova geometria, sua relação com a interdisciplinaridade e a formação do professor de matemática, em dissertações e teses do Catálogo de Teses e Dissertações da Capes no período de 2005 a junho de 2017. Desta forma, concluímos que a proposta didático-metodológica apresentada possui um potencial desejável e que sua utilização poderá contribuir para facilitar o processo de ensino e aprendizagem em todos os níveis, desde que adequada a cada um deles, desde a Educação Básica ao Ensino Superior, apesar de ainda existir uma lacuna interdisciplinar, o que gera novos caminhos a serem percorridos por professores que gostam e estão sempre em busca de novas possibilidades para melhoria de sua prática em sala de aula
Estudo sobre os investimentos dos recursos dos Planos Benefício Definido (BD)
Authors: Kataoka Sheila Sayuri , Carmona Charles Ulises de Montreuil
Published: February 2025

O objetivo desse estudo foi verificar a propensão ao risco dos investimentos dos planos Benefício Definido (BD) comparando a tipificação jurídica da patrocinadora. Para tal foram analisados 134 planos BD e suas respectivas patrocinadoras, no período de 2013 a 2019, através de um modelo de regressão logística multinomial, com o uso dos programa estatístico R,  RStudio e StataBE versão 17. A alocação dos recursos (variável dependente) foi dívida em 7 categorias de decisão (D1 a D7), de acordo com as composições das carteiras dos planos, e os planos foram divididos em dois grupos: G0 planos em que a patrocinadora não é empresa de capital aberto; e G1 planos em que a patrocinadora é empresa de capital aberto. Após análise dos resultados, foi possível constatar que existem diferenças nas escolhas de categoria de decisão entre os grupos G0 e G1. O grupo G1, tende a ter estratégia de alocação um pouco mais agressiva que G0, porém os planos de ambos os grupos, optam, em sua maioria, pela diversificação da carteira especialmente nas composições D4 e D5. Apesar desses resultados, não há evidências estatísticas para aceitar a hipótese de que os planos em que a patrocinadora é empresa de capital aberto adotam estratégia de investimentos com maior propensão à risco.
Contribuição para análise do valor agregado proveniente dos incentivos fiscais da Lei do Bem
Authors: Silva Edivaldo Batista da , Galegale Napoleão  Verardi , Ribeiro Rosinei Batista
Published: February 2025

Este artigo tem por objetivo avaliar se o incentivo fiscal da Lei do Bem, impactou de forma estatisticamente relevante a geração de riqueza das companhias abertas brasileiras, não financeiras, listadas na CVM. Utilizou-se o “Valor Adicionado Bruto” da Demonstração do Valor Adicionado (DVA) como variável dependente, e como variáveis independentes os elementos de distribuição do valor adicionado e o total do ativo para definir o tamanho da empresa. A variável categórica considerou se a empresa usufruiu ou não da Lei do Bem, teve como base os relatórios de prestação de contas enviados ao Ministério da Ciência, Tecnologia e Inovações (MCTI). A pesquisa é exploratória e descritiva (quanto aos fins) e bibliográfica e documental (quanto aos meios). Empregou abordagem quantitativa e analisou 190 empresas entre 2010 e 2020. Para a análise estatística, foram usados Modelos Lineares Generalizados (GZLM) com a técnica Mixed Model. O estudo revelou que 80% das empresas não usufruíram do incentivo fiscal da Lei do Bem, enquanto 20% usufruíram. O valor adicionado bruto médio das empresas que aderiram à Lei do Bem é 361,62% superior as que não aderiram. Ressalta-se que as empresas beneficiárias da Lei do Bem representam 20% do total da amostra, evidenciando que são as grandes empresas que mais fazem uso dos incentivos da Lei do Bem. Os resultados confirmaram que a Lei do Bem tem influência positiva na geração de riqueza pelas empresas que a utilizam.
Trabalho pedagógico na Pós-Graduação em Educação Profissional e Tecnológica: sentidos de (re)estruturação
Authors: Ferreira Liliana Soares , Castaman Ana Sara , Souza Francisco das Chagas Silva
Published: February 2025

Este estudo tem por objetivo analisar como professores do Programa de Pós-graduação em Educação Profissional e Tecnológica, em seus discursos, elaborados mediante entrevistas, descrevem e caracterizam o trabalho pedagógico realizado nesse nível de ensino e observar movimentos de sentidos quanto (re)estruturação. Para tanto, aplicou-se um questionário por meio do Google Forms, para 12 professores que trabalham em uma unidade curricular específica no referido Programa, e os dados produzidos foram analisados a partir do fundamento teórico-metodológico da Análise dos Movimentos de Sentidos. Constatou-se uma preocupação dos professores com seu trabalho pedagógico, olhado a partir de seus discursos, na relação dialética estruturação e desestruturação. Por um lado, intencionam realizá-lo coadunando-se o melhor possível ao que lhes é demandado institucionalmente. Por outro, sentem-se pressionados por essa exigência, alterando o que produzem para evadir-se do intenso produtivismo que, muitas vezes, desvia sua energia do efetivo trabalho pedagógico em aula, para concentrar-se na elaboração de produtos que devem ser publicizados.