bluuebunny/crossref_metadata_2025 huggingface dataset:
Enabling the vision of a perpetual innovative product – predicting function fulfillment of new product generations in a circular factory
Authors: Grauberger Patric , Dörr Matthias , Lanza Gisela , Kaiser Jan-Philipp , Albers Albert , Düser Tobias , Tusch Leonard , Seidler Moritz , Dietrich Stefan , Schulze Volker , Matthiesen Sven
Published: September 2024

The need for sustainability is driving the transition from linear to circular production. Customers, driven by the desire for innovation, prefer new products with the latest cutting-edge functions and design. The problem is that used products from older product generations are hence less attractive, leading to a limited market for remanufactured products and generating less revenue than their new counterparts. Therefore, this research addresses the problem of reprocessing and technologically updating used products into the newest product generation. To address this problem of reprocessing and technological updating with a Circular Factory, the product’s function fulfillment must be predicted in different situations in a Circular Factory. Three key challenges in which the function fulfillment must be predicted are identified as: Analysis and Diagnostics of Used Products and Subsystems, Prediction for Pairing and Reprocess of the Embodiment and Design for Circular Factory. A model-based approach is presented to address these three key challenges by predicting product function fulfillment to enable cross-generational use of subsystems and components. Five different types of models are proposed: A Functional Model, a Reliability Model and a Reference Architecture Model at the high level of general product modeling, as well as a Digital Twin of an object instance and a Tolerance Scheme at the level of individual instances. A theoretical case study shows the possible application in a Circular Factory using the example of an angle grinder. However, it’s essential to acknowledge that substantial work is needed for the enhancement or development of these models before practical application. Successful application of these models allows the Circular Factory not only to maintain but also to increase the value of reprocessed products to enable offering on the primary market and contribute to the vision of realizing a perpetual innovative product.
On generalized concise words
Authors: Delizia Costantino , Gaeta Michele , Monetta Carmine
Published: September 2024

The study of verbal subgroups within a group is well known for being an effective tool to obtain structural information about a group.
Therefore, conditions that allow the classification of words in a free group are of paramount importance.
One of the most studied problems is to establish which words are concise, where a word 𝑤 is said to be concise if the verbal subgroup

w
⁢

(
G
)

w(G)

is finite in each group 𝐺 in which 𝑤 takes only a finite number of values.
The purpose of this article is to present some results, in which a hierarchy among words is introduced, generalizing the concept of concise word.
Asymmetric and Threshold Effect of Military Expenditure on Economic Growth: Insight from an Emerging Market
Authors: Dada James Temitope , Sharimakin Akinwumi , Al-Faryan Mamdouh Abdulaziz Saleh , Tabash Mosab I. , Adeiza Adams
Published: September 2024

This study aims to investigate the asymmetric effect of military expenditure on economic growth in Nigeria. Furthermore, it determines the threshold level of military expenditure that spurs or hinders economic growth in Nigeria. To achieve the study’s objectives, the nonlinear autoregressive distributed lag (NARDL) and dynamic threshold autoregressive (TAR) techniques are applied as estimation techniques to data from 1981 to 2020. The findings from the study show that (1) positive shocks in military expenditure negatively impact economic growth in the short run, while the effect turns positive in the long run. (2) Negative military expenditure shocks negatively influenced economic growth in Nigeria in both periods. (3) The result from the threshold regression found a threshold value of 0.579 for military expenditure. Based on these findings, policymakers must consider the inherent tendency of asymmetry and nonlinearity in military expenditure when formulating policies related to government spending.
Casualization of work, free riding and institutional distrust: Explaining social protection preferences of platform workers in Germany
Authors: Beckmann Fabian , Hoose Fabian , Obereiner Lara , Topal Serkan
Published: September 2024

The social protection of platform workers is widely recognized as a major political challenge but remains vastly understudied. The few existing investigations focus on social protection coverage and the employment status of platform workers, while their social protection preferences remain a black box to date. In this article, we investigate the social protection preferences of platform workers using a mixed methods design based on an online survey (n = 719) and qualitative in-depth interviews (n = 20) with self-employed platform workers in Germany. While the quantitative data indicate that the vast majority of respondents reject compulsory social insurance contributions for platform workers and favour self-employment over dependent employment, the qualitative interviews reveal three main types of explanations for this regulation aversion in different segments of platform work: The casualization of work in the platform economy, free riding on protection derived from ‘regular’ employment and distrust in established welfare state institutions. Against this background, we discuss challenges for social policies aiming at improving social protection for platform workers.
African Entrepreneurship in urban colonial Zimbabwe: The case of Highfield, 1953–1965
Authors: Chambwe Tawanda V. , Gwande Victor M.
Published: September 2024

This paper examines the importance of Highfield to the African entrepreneurship history of colonial Zimbabwe, then known as Southern Rhodesia. The Southern Rhodesia colonial state established the township of Highfield in its capital city, Salisbury (now Harare), in 1936 as part of its spatial and racial segregation policy. The policy made Africans temporary residents in the urban areas. However, the post-Second World War industrial growth forced the colonial state to revisit its stance on African urbanisation. Seen as critical for the expanding manufacturing sector, African labour now had to be accommodated in the urban areas, which triggered the colonial state to expand the township of Highfield in 1956. That very year, enterprising Africans responded by taking up the expanded township’s entrepreneurial opportunities. This response and the subsequent evolution of African entrepreneurship in Highfield township are the focus of this paper. The paper provides a historical kaleidoscope of Highfield as a place of African entrepreneurship, which thus far has been occluded and separated from the dominant literature on the township’s role in the rise of African nationalism and anti-colonial struggles. Highfield emerged as a cultural milieu hosting an African Renaissance in food, fashion and lifestyle inspired by a mix of modernity and indigenous ethos. Thus, the paper argues that Highfield was the entrepreneurial centre of various businesses and startups. These colourful stories of African entrepreneurship are gleaned from handwritten business stand applications by African traders, archival documents, and newspapers in piecing together an urban history of African entrepreneurship in the township of Highfield in colonial Zimbabwe.
Cocoa Transfer Agreements, moneylenders, public letter writers and the rise of business elites in South West Nigeria, 1986–2000
Authors: Ajiola Felix Oludare
Published: September 2024

This paper focuses on the subject of the cocoa transfer agreements and the transformation of rural agrarian livelihoods in the cocoa belt of South West Nigeria under the Structural Adjustment Programme (SAP). The paper maps the trajectory and career of three dominant agricultural entrepreneurs in the cocoa produce trade in South West Nigeria during the 20th century. The paper demonstrates that while the cocoa business in Nigeria has received considerable scholarly attention, the impact of moneylenders, public letter writers (PLWs) and cocoa transfer agreements on cocoa business, rural livelihoods and entrepreneurship in the aftermath of SAP is yet to be fully investigated. Analysing the accumulative strategies and contributions of Emmanuel Akintan, Isaac Adegbuyi Akingboye and Rufus Orosundafosi to rural capital formation, the paper highlights the impacts of liberalisation policies on African rural businesses in the aftermath of SAP. The paper combines primary sources, such as oral interviews, personal observation and ethnography, with information collected from the archives, newspapers, diaries, and extant literature to analyse the dynamics of rural accumulation in the cocoa producing South West Nigeria during the 20th century. The paper argues that the acquisition of wealth and the thin line between standard procedures and clandestine deals stimulated accusations of dispossession of peasant farmers by the capitalist moneylenders and merchants in the post-SAP era.
The state and the development of business organisations in Benin, ca. 1440–1897
Authors: Ojo Idahosa Osagie
Published: September 2024

The focus of this paper is on business organisations in Benin and their interplay with the state from the era of Oba Ewuare up to the fall of the Kingdom in 1897. The paper analyses economic nationalism in the kingdom and the roles in the protection and development of identified business groups during the period. Knowledge of business organisations in pre-British Benin and their relationship with the state, which aided their development between ca. 1440 and 1897 is a vacuum in the study of African business organisations and will be useful in understanding economic nationalism from an African perspective. The study adopts the historical method and requires a multidisciplinary approach for interpretation and reliability. As such, both primary and secondary sources were utilised, and the findings confirm that several business organisations in manufacturing, trading and in large scale crop farming existed. The work provides insights into the entrepreneurs, composition and operations of these businesses. The findings also reveal how trading and industrial activities were controlled and what implications this had for the development of these businesses and the state. The work shows in addition how these businesses benefited from the security and licences granted by the state as well as how the state used these businesses to mount up economic power and political stability.
Exploring Margaret Mahler's Theory: Applications in Borderline Personality Disorder Treatment within Psychiatric Wards
Authors: Nitzan Uri
Published: September 2024

This article delves into fundamental themes within Margaret Mahler's separation-individuation theory, placing particular emphasis on the rapprochement phase. It illustrates how these themes are crucial for comprehending and effectively managing inpatients grappling with borderline personality disorder. Mahler's conceptual framework offers valuable insights for caregivers and staff, equipping them to navigate the clinical and emotional complexities inherent in the treatment of this distinct patient population during their stay in psychiatric wards.
Toxicologic Profile and Anti-Nociceptive Effect of Two Semi-Synthetic Triterpene Derivatives from Combretum Leprosum in Mice
Authors: Passos Maria Juliane , Chaves Hellíada V. , Barbosa Francisco G. , Mafezoli Jair , Silva-Filho Carlos J. A. , Capistrano André Luiz de O. , Freire Jordânia M. O. , de Souza Nayara A. , Júnior Manoel V. N. , dos Reis Tiago S. , Costa José Jackson do N. , Pereira Karuza Maria A. , de Souza Tamiris de Fátima G. , Rabelo Liviane Maria A. , de Alencar Nylane Maria N. , de Moraes Maria Elisabete A. , Braz Helyson Lucas B. , Goes Paula , Bezerra Mirna Marques
Published: September 2024

Background and aim: Combretum leprosum Mart. serves as a medicinal plant in traditional Brazilian medicine. The beneficial effects of C. leprosum Mart. are attributed to the triterpene, 3β,6β,16β-trihydroxylup-20(29)-ene (CL-1). Herein we evaluate the toxicity of two semi-synthetic derivatives from CL-1 (CL-P2 and CL-P2A) in vitro and in vivo, and determine the efficacy in zymosan-induced writhing response and the putative mechanism of action.

Experimental procedure: Toxicity prediction was assessed using the PROTOX-II and ADMETlab 2.0 prediction tools, and SMILES codes for structure identification. In vitro cytotoxicity of the derivatives was tested using the sulforhodamine B assay in L929 and HaCaT cells at 24, 48, and 72 h. Mice received (oral gavage) CL-P2 or CL-P2A (10 mg/kg/d) for 14 days in in vivo toxicity assays. Blood samples and organs (stomach, liver, and kidneys) were collected for AST/ALT level determination and H&E staining, respectively. The anti-nociceptive effect of CL-P2 and CL-P2A (0.1, 1, or 10 mg/kg) was evaluated in the zymosan-induced writhing response. The peritoneal exudate was collected to determine myeloperoxidase (MPO) and superoxide dismutase (SOD) activity, and nitrite concentration.

Results: CL-P-2 and CL-P2A derivatives exhibited low cytotoxicity and did not change body mass, AST/ALT levels, or organ weight. The histopathologic analysis did not reveal significant changes in organs. Both derivatives inhibited the writhing response in a dose-dependent manner. In addition, both derivatives failed to reduce MPO activity. However, CL-P2A increased SOD activity and CL-P2 decreased nitrite/nitrate levels.

Conclusion: CL-P2 and CL-P2A were shown to exhibit anti-nociceptive effects without toxicity. Our data suggest that CL-P2 and CL-P2A efficacy is mediated, at least in part, via antioxidant activity by modulating nitrite/nitrate levels and SOD activity, respectively.
CO-BUILDING INCLUSIVE SOCIAL TRANSFORMATION FOR SUSTAINABLE DEVELOPMENT
Authors: Engelbrecht Lambert K , Lombard Antoinette
Published: September 2024

The demands made by a rapidly changing society are embodied in persistent issues such as inequality, poverty, hunger, conflict and displacements, all exacerbated by climate change and its impacts. This reflects a world in crisis. Social work, committed to social justice and human rights for all, is at the forefront of social transformation. The International Association of Schools of Social Work (IASSW) strives to enhance the visibility of social work as a global actor in building an inclusive, just, peaceful and sustainable society. Realising this vision requires multi-level partnerships at the international, regional and local levels, facilitated by social work educators and practitioners, in collaboration with marginalised individuals and communities who are disproportionally affected by social and economic exclusion and environmental injustices.
STRENGTHENING FAMILY CONNECTEDNESS IN FAMILIES WITH CHILDREN WITH BEHAVIOURAL PROBLEMS: KEY EXPERTS’ AND PRACTITIONERS’ EXPERIENCES IN THE IMPLEMENTATION OF PARENTING PROGRAMMES
Authors: Danhouse Merle Heather , Erasmus Charlene J.
Published: September 2024

Parenting enhancement contributes to the development of positive child behaviour and strengthening of family connectedness. This qualitative study explores the experiences of 10 experts (social workers, child and youth care workers, and researchers) in the field of parenting through semi-structured interviews to strengthen family connectedness in families with children with behavioural problems (FCBPs). Using Tesch’s qualitative analysis, three main themes emerged: (a) barriers to family connectedness, (b) parenting styles, and (c) parenting programmes in strengthening family connectedness. The findings of the study highlight the barriers experienced by experts and the lack of evidence-based parenting programmes in the strengthening of family connectedness in FCBPs in rural areas in South Africa. The study therefore recommends that practitioners in the field of parenting should receive specialised parenting training on how to strengthen family connectedness in FCBPs. Keywords: children with behavioural problems, family connectedness, parenting, parenting programmes
ENHANCING CHILDREN’S SAFETY AND WELLBEING: EXPLORING THE ROLE OF A NEW SOCIAL SERVICE PROGRAMME IN FREE STATE TOWNSHIP SCHOOLS
Authors: Reyneke Roelf
Published: September 2024

In response to the pervasive violence affecting children's psychosocial wellbeing in South Africa, the Adopt-a-School Foundation introduced the Thari programme, targeting behavioural challenges that manifest in gangs, substance abuse and classroom disruptions. This article presents findings from a pilot project in Botshabelo, Free State, where gangsterism, academic struggles and social issues prevailed. The main study used an exploratory sequential mixed-methods design (qualitative/quantitative), but this article reports only on a part of the qualitative data from group and individual interviews that explored participants' perspectives. The study focused on children's behavioural challenges and observed school changes during implementation of the Thari programme. Results show a notable reduction in gangsterism and psychosocial issues, leading to decreased disruptive behaviour among children and highlighting improved behaviour after the introduction of psychosocial services. Keywords: child and youth care worker, psychosocial services, school safety, school social work, vulnerable children
A Model for Preparing a Vocational Teacher for the Implementation of a Work Education Program based on Students’ Project Activities
Authors:   Yelabuga Institute (branch), Kazan (Volga Region) Federal University, Sedov Sergey A.
Published: September 2024

Introduction. One of the important updates to the Professional Standard of a college teacher in 2024 was the inclusion of labor actions “formation of personal results of students based on a project”. The data of the study conducted by the author indicate that the majority of college teachers find it difficult to implement these labor actions. The purpose of the study is a theoretical description of the model of college teacher training for the formation of personal results of students based on project activities. Methodology. Substantive and formalized approaches are the basis of the methodological premise of the model; essential and phenomenological approaches are used to highlight the requirements and procedures for the implementation of the described model. The studentsʼ project activities are based on the technology of modern project-based learning (G. K. Selevko), classes are considered through the structure of a modern lesson (M. I. Makhmutov), the taxonomy of pedagogical goals (B. S. Bloom), authorʼs methods tested with college teachers. Research methods: theoretical analysis and synthesis, modeling, study and generalization of pedagogical experience. Results. A model of college teacher training for the formation of personal results of students based on project activities is described. The model is based on updating the technology of modern project-based learning in accordance with the requirements for the results of mastering the educational program by college students. The expediency of including a wide range of educational results is substantiated. Conclusions. The technology of modern project-based learning is justified as a promising technology for preparing a college teacher for the formation of personal results of students based on project activities.
Analysis of the Existing Forms and Practices of Interaction between Russian and Chinese Educational Organizations at Different Levels in the Framework of Promoting Education in Russian (the Example of the Siberian Federal District)
Authors:   Novosibirsk State Pedagogical University, Basalaeva Elena G. , Shpilman Marina V. ,   Novosibirsk State Pedagogical University
Published: September 2024

Introduction. The research problem is caused by the need to study the features of Russian-Chinese educational cooperation in order to more effectively scale the best practices for the promotion of the Russian language and Russian education in China. The purpose of the article is to analyze the established forms and practices of interaction between Russian and Chinese educational organizations at different levels in the field of teaching Russian as a foreign language and promoting Russian education on the example of the Siberian Federal District. Methodology. A summary review of research on forms of international cooperation in the field of education on the example of certain regions of the Russian Federation and the Peopleʼs Republic of China, an analysis of the official websites of educational organizations in Russia in terms of their participation in the processes of internationalization of education. Results. The authors have compiled a database of Siberian and Chinese partner universities, which has enabled a clear demonstration of the degree of presence of Siberian Federal District universities in the educational space of the Peopleʼs Republic of China. Additionally, the article analyses the formats of cooperation between the two countries: educational network programs, academic mobility, preparation of students for admission to Russian universities, summer and winter schools, centers for open education in Russian and Russian language teaching, scientific and technical relations and joint research projects. Conclusions. The analysis has revealed that, despite the existence of a large number of bilateral agreements between educational organizations, interaction is uneven (both in terms of territorial distribution and from a substantive point of view). Furthermore, it would appear that not all Russian universities in the Siberian Federal District are as active as they could be in carrying out international cooperation with Chinese educational organizations.
Cultural Approach in Teaching Visual Arts and Literary Reading at the Primary General Education Level: Principles and Methodological Solutions
Authors:   Ural State Pedagogical University, Simbirtseva Natalia A. , Kusova Margarita L. ,   Ural State Pedagogical University, Semenova Elena V. ,   Ural State Pedagogical University
Published: September 2024

Introduction. Introducing elementary school students to the values of artistic culture in the lessons of fine arts and literary reading is an important aspect of primary education. The authors of the article focus on the cultural approach, which contributes to the expansion of space for interpersonal and intercultural interaction, self-expression and realization of essential, creative in nature, human forces, allowing to rely on the dominant system of values in society and build educational strategies based on the ideas of dialogue and humanism as a basic basis for common approaches in teaching different subjects. Methodology. The article presents a number of principles, including: the principle of continuity, continuity, the principle of combining theory and practice-oriented, communicative interaction, openness, inclusiveness of the educational environment, cultural appropriateness. The integration of these principles in the process of implementation of the subjects “Fine Arts” and “Literary Reading” at the level of primary general education allows the teacher to strengthen the educational context of the taught subject, to expand the possibilities of searching and justification of actual methodological solutions in the context of cultural approach in education. Results. The research resulted in methodological solutions presented in the form of variants of tasks for students on the material of studying watercolor painting and works of various genres in elementary school. Conclusions. The solutions proposed by the authors can be considered by teachers as methodological guidelines that demonstrate and reveal the specifics of the implementation of the cultural approach in teaching the subjects “Fine Arts” and “Literary Reading”.
Effect of Differentiated Approach to Physical Activity Dosing on Mental Performance of Adolescents
Authors:   Novosibirsk State Pedagogical University, Odintsova Marina A. , Yachmenev Nikolay V. ,   Novosibirsk State Pedagogical University
Published: September 2024

Introduction. The article deals with an innovative approach to the dosing of physical activity taking into account the functional capabilities of adolescents and its impact on the mental performance of students. The aim of the study is to identify the impact of physical activity associated with the manifestation of general endurance on the mental performance of middle school students under different conditions of its dosing. Methodology. The study compares the effect of the load on general endurance without taking into account the physical capabilities of the organism of schoolchildren of grades 5–8 and in accordance with their functional fitness on the indicators of various properties of attention, semantic memory, and logical thinking. Results. The obtained data reflect the percentage ratio of adolescents with improvement, deterioration of mental performance indicators, as well as those in whom no changes were revealed taking into account individual intellectual development. It was revealed that after the differentiated approach, in contrast to the undifferentiated one, the majority of adolescents improved the indicators of attention span, the rate of intellectual tasks performance in the absence of mental efficiency exhaustion, also the number of memorized pairs of words increased, the number of errors in establishing semantic relations in judgments decreased. Conclusion. Differentiated approach to dosing of physical load in comparison with undifferentiated more often promotes improvement of stability and volume of attention, semantic memory and logical thinking of adolescents.
Application of Computer vision Technologies in Health-Improving Physical Education
Authors:   Novosibirsk State Pedagogical University, Boris A. Boris A. , Zhomin Konstantin M. ,   Novosibirsk State Pedagogical University
Published: September 2024

Introduction. The article presents the areas of use of computer vision technologies in the field of physical education and sports activities. Methodology. Innovative methods for assessing motor action based on video material, pattern recognition, object tracking are analyzed, the possibility of automated control of motor action based on the use of artificial intelligence and neural networks is shown. Particular attention is paid to the possibilities to integrate computer vision technologies from the field of professional sports and fitness industry into fitness physical culture, educational process. Results. A computer program based on the MediaPipe system has been developed for automated assessment of the effectiveness of physical exercise based on biomechanical properties of motor action, taking into account individual proportions of the body, determining the load on key points of the body in order to obtain an optimal health effect. Conclusions. The prospects for using this program to optimize the methodology of health-improving physical education are discussed.
Analisis Pengaruh Investasi terhadap Produk Domestik Regional Bruto dalam Kerangka Pembangunan Berkelanjutan
Authors: Ngabiyanto Ngabiyanto , Nurkhin Ahmad , Rahman Yozi Aulia , Fauzi Ahmad Syahrul , Lestari Puji , Saputro Iwan Hardi , Algifari Algifari
Published: September 2024

Tujuan penelitian adalah menganalisis pengaruh investasi terhadap Produk Domestik Regional Bruto (PDRB) dalam kerangka pembangunan berkelanjutan. Investasi yang dimaksud dalam penelitian ini adalah penanaman modal asing (PMA) dan investasi sumber  daya yang diukur dengan indeks pembangunan manusia (IPM). Di samping itu, analisis pengaruh jumlah angkatan kerja, ekspor, dan impor juga dilakukan. Jenis penelitian adalah penelitian kuantitatif dengan model analisis regresi data panel. Melalui teknik dokumentasi, diperoleh 102 unit data dari pemerintah provinsi di Indonesia selama tahun 2020-2022. Teknik analisis data yang dilakukan adalah analsisis regresi data panel. Hasil penelitian mengindikasikan bahwa PMA mempunyai pengaruh positif dan signifikan terhadap PDRB. IPM, jumlah angkatan tenaga kerja, ekspor, dan impor tidak berpengaruh signifikan terhadap PDRB. Temuan penelitian menegaskan bahwa pemerintah daerah harus mengambil kebijakan yang tepat untuk meningkatkan PMA di wilayahnya masing-masing.  Peningkatan investasi dengan indikator kontribusi PMA terhadap PDB merupakan salah satu pilar yang telah ditentukan oleh pemerintah sebagai bagian dari tujuan dan indikator keberhasilan pilar pembangunan ekonomi berkelanjutan. 
 Abstract
The purpose of this study is to analyze the effect of investment on Gross Regional Domestic Product (GRDP) within the framework of sustainable development. The investment referred to in this study is foreign investment (FDI) and investment in resources as measured by the human development index (HDI). In addition, an analysis of the effect of the number of workforce, exports, and imports was also carried out. The type of research is quantitative research with a panel data regression analysis model. Through documentation techniques, 102 data units were obtained from provincial governments in Indonesia during 2020-2022. The data analysis technique used is panel data regression analysis. The results of the study indicate that FDI has a positive and significant effect on GRDP. HDI, the number of workforce, exports, and imports do not have a significant effect on GRDP. The research findings emphasize that local governments must take appropriate policies to increase FDI in their respective regions. Increasing investment with an indicator of FDI contribution to GDP is one of the pillars that has been determined by the government as part of the objectives and indicators of the success of the pillars of sustainable economic development.
Bezhetsk painter Mikhail Tyranov and his students: on the attribution of church wall-painting in north-east Tver region
Authors: Krylov Ivan
Published: September 2024

The article introduces for the first time archival documents into scientific circulation, revealing the names of masters and customers, the exact time and circumstances of the creation of the most significant monuments of monumental church art in the North-East of the Tver region. Analysis of sources shows that church wall-painting flourished in the region in the second quarter of the 19th century is largely associated with the name of Mikhail Tyranov, an art teacher and guild master painter from the district town of Bezhetsk, Tver province. The name of this master was known far beyond the borders of his hometown, and his works were highly valued by his contemporaries. During the period from the early 1830s to the mid-1850s. The artel of M. Tyranov painted dozens of churches, not only in the Tver province, but also in the territories bordering it in the Yaroslavl province. The paintings made in the style of classicism by the artel of M. Tyranov have been preserved in the churches of the Bezhetsky district of the Tver region: church of the Tikhvin Icon of the Mother of God in the village of Sukromny, church of the Epiphany in the village of Yes’ky, church of the Smolensk Icon of the Mother of God in the village of Alabuzino; church of the Kazan Icon of the Mother of God in the village of Shablykino, Krasnokholmsky district, Tver region; church of the Smolensk Icon of the Mother of God in the village of Knyazhevo, Uglich district, Yaroslavl region. The traditions of church wall-painting during the period of transition from classicism to eclecticism (1850–1860s) were continued by the students of M. Tyranov. The most successful among them were masters from the city of Vesyegonsk, Ivan and Andrey Smirnov. Among the outstanding monuments of monumental art, the work of the Smirnov artel: church of the Transfiguration in the village of Nikola-Vysoka (Vesyegonsky district of the Tver region) and church of the Ascension in the village of Novokotovo (Molokovsky district, Tver region). The article attempts to reconstruct the creative biographies of previously unknown masters. Analysis of the continuity of art schools within the Tver province, as well as the establishment of connections between masters and Moscow and St. Petersburg, helps to deepen the understanding of the development of provincial art in the 19th century.
Phthorai and Scale modulations in Middle Byzantine chant with the standard abridged version of the Sticherarion of the 13th — 14th centuries as an example
Authors: Tyurina Olga
Published: September 2024

The Middle Byzantine diastematic notation knows a number of particular signs – the phthorai – indicating modal changes. Being added to the interval neumes, they convey information that could not be seen from the neumes themselves, namely, about scale structure of Middle Byzantine hymns.Phthorai of archaic type are placed on the intonation of ascending forth g-c in a melodic element of the mode “nana”. Latest phthorai, which had been added to Middle Byzantine singing manuscripts in post-Byzantine period, are of different types. The paper deals with one of them, the phthora of the tritos mode (c). It is found in chants of all eight modes, in different melodic context, placed on c and one fifth downwards, on f. It indicates small interval, i.e. one half-step below the neume on which the phthora occurs. However, in few other cases phthorai “c” are found on another pitch. From these transposed phthorai we can learn about interval structure of melodic formulae and, more specifically, about scale modulations.The paper presents an analysis of two stichera: “To tritto tes eroteseos” to Saint Peter, in tetartos mode, and “Deute makarisomen apantes Iosef” for Holy Saturday, in plagios deuteros mode. The author draws conclusion that their modal structure contains a scale modulation. Some melodic configurations or more large melodic formulae should be transcribed to the modern notation system with accidentals, in these cases, f-sharp. Modulations may serve as an artistic mean to stress the structure of the hymn and to convey its author’s line of thought.
Tėvų emigracijos įtaka Lietuvoje likusių jų vaikų sveikatai
Authors:   , Račaitė Justina
Published: September 2024

Impact of parental emigration on the health of their children remaining in Lithuania
INFLUENCE OF PULSATIONS OF THE PULSE CONVERTER ON THE ERROR OF FOLLOWING THE SPEED OF THE ON-BOARD ELECTRIC DRIVE
Authors:   Chernihiv Polytechnic National University,  str. Shevchenka, 95, Chernihiv, 14035, Ukraine, Roslik O.A. , Skuhariev V.A. ,   Chernihiv Polytechnic National University,  str. Shevchenka, 95, Chernihiv, 14035, Ukraine
Published: September 2024

An analysis of the tracking error was performed without taking into account the pulsations of the electric motor supply voltage and taking into account the pulsations of the electric motor supply voltage. The results of the calculation of the constant tracking error are presented, taking into account the influence of pulsations, which is a consequence of the pulse width modulation (PWM) process. Ref. 7, fig. 2.
CHARACTERISTICS OF RESONANT SYSTEMS FOR OBTAINING HIGH VOLTAGE ON A CAPACITIVE LOAD
Authors:   Institute of Electrodynamics of the National Academy of Sciences of Ukraine,  Beresteiskyi ave., 56, Kyiv, 03057, Ukraine, Vinnychenko D.V.
Published: September 2024

The work is devoted to the comparative analysis of currents in inverter circuits of transformerless resonant and transformer resonant and non-resonant systems of the same power for obtaining high voltage on a capacitive load. The purpose of the work is to determine the type of system characterized by the smallest average operating current of the inverter switches. The dependence of the currents in the circuits of the inverters on the parameters of the resonant circuits was obtained, the results of calculations according to which allow us to state that the use of a transformerless circuit to ensure the same power of systems for obtaining high voltage on a capacitive type load will allow to almost halve the average operating current in the inverter circuit. Simulation modeling of the processes in the studied schemes was carried out, which confirms the obtained theoretical results. The use of high-voltage transformerless resonant systems to obtain high voltage on a capacitive load will allow to halve the nominal and maximum permissible current characteristics of the power elements of the converters. Ref. 10, fig. 3.
Percepciones de estudiantes universitarios relacionadas con el aspecto socio-afectivo y el aprendizaje durante el confinamiento
Authors: Brigitte Voisin Stéphanie Marie , Ramos Obregón Andrea Bridget , Olivos Pérez María Eugenia , López López María Lilia
Published: September 2024

Hoy en día los aspectos socioafectivos se consideran factores preponderantes en el desarrollo del aprendizaje en lo general y del aprendizaje de lenguas extranjeras en lo particular. A fin de conocer su incidencia en nuestro contexto de estudio durante el confinamiento causado por el virus SARS-COV-2, se diseñó un instrumento bajo un enfoque cualitativo, el cual fue aplicado a los estudiantes pertenecientes a la Licenciatura en la Enseñanza del Francés de la BUAP durante el otoño del año 2021. Los resultados obtenidos permitieron identificar los aspectos socioafectivos que afectaron a los universitarios durante la educación remota, los cuales intensificaron las emociones y sentimientos negativos en su participación en clase.
Relações étnico-raciais:
Authors: Vicenzi Renilda , Guarese Maicon Fernando
Published: September 2024

O ensino de educação para as relações étnico-raciais na educação básica pode promover acolhimento, positivação de identidades e compor a luta contra silenciamentos, preconceitos e racismo. Ainda, a presença e o diálogo sobre relações raciais auxiliam para termos uma sociedade mais igualitária e democrática, visto que não há “democracia com racismo”. O objetivo deste texto é analisar a presença da educação para as relações étnico-raciais em imagens e textos tendo como referência a história, a cultura afro-brasileira e indígena em materiais didáticos na área de Ciências Humanas disponibilizados aos alunos da rede estadual catarinense no novo ensino médio. A pergunta de pesquisa que nos guia é esta: como os temas referentes a essas temáticas por meio de imagens e textos são abordados nos materiais didáticos disponibilizados para o novo ensino médio? A fonte de análise é o livro didático Moderna em Projetos: Ciências Humanas e Sociais Aplicadas (2020). Trata-se de material didático que integra os demais distribuídos e utilizados em escolas públicas de Santa Catarina, e que enfatiza uma metodologia de aprendizagem baseada em problemas (ABP). A perspectiva teórico-metodológica usada para análise é a da decolonialidade, uma alternativa à razão moderna-ocidental-cristã-colonial, que luta contra a desumanização do Outro, sobremaneira dos afrodescendentes e indígenas na interlocução com referenciais bibliográficos que abordam a temática de relações raciais. A evidência preliminar indica uma abordagem superficial que pode ensejar processos de exclusão e racismo.
Determination of free formaldehyde in cosmetics products through derivatization with 2,4-DNPH using an optimized and validated HPLC-PDA method
Authors: Echerfaoui Fouad , El Orche Aimen , El Bourakadi Khadija , Benomar Abdelhafid , Adade Casimir Adade , Laouni Amine , El Kacemi Mounir , Bouatia Mustapha , El Karbane Miloud
Published: September 2024

Formaldehyde plays a significant role in the global economy due to its unique chemical properties and widespread use in both the medical field and various industrial sectors. However, formaldehyde (HCHO) is classified as a persistent organic pollutant and is known to be harmful. Exposure to formaldehyde, both direct and prolonged, can cause severe health issues and potentially lead to death. It is recognized as a human carcinogen by numerous organizations and can negatively impact the endocrine system, as well as having mutagenic or teratogenic effects. Formaldehyde has been detected in various matrices at levels exceeding those permitted by international health regulatory bodies. Chromatography, particularly high-performance liquid chromatography (HPLC) coupled with detection methods, is an analytical technique frequently used to determine volatile organic molecules, including formaldehyde. This investigation aimed to develop and validate an assay method to identify and quantify formaldehyde in cosmetic products using HPLC-PDA. The chosen isocratic system consisted of a ZORBAX RX-C8 column (250 mm × 4.6 mm; 5 μm) and a mobile phase mixture of acetonitrile and water in a 55:45 (v/v) ratio, with a flow rate of 1.5 mL min−1. Formaldehyde was detected at 353 nm after derivatization with a 0.1N 2,4-dinitrophenylhydrazine solution, with a retention time of approximately 5.0 min and a total run time of 7.0 min for formaldehyde. The method was validated according to ICH Q2 (R1) guidelines. The validation parameters demonstrated high selectivity, precision (RSD <2%), accuracy (mean recovery of 101.3%), linearity (r > 0.995 in the 1,000–2,400 ppm range), and a limit of quantification (LOQ) of 0.1 ppm. The validated analytical method was applied to 35 cosmetic products. None of these products were labeled as containing formaldehyde, although 6 imported products were labeled as containing formaldehyde-releasing preservatives. The results indicated that 88.6% of the samples tested positive for formaldehyde, with free formaldehyde levels ranging from 20 to 981 ppm. All samples contained formaldehyde levels below the 2000 ppm threshold.
Rosyjskie ustawodawstwo wojskowe doby panowania cara Pawła I (1796–1801) – wprowadzenie do problematyki
Authors: Krokosz Paweł
Published: September 2024

This article examines the changes in Russian military legislation implemented during the reign of Tsar Paul I (1796–1801). Under the ruler’s decision in the years 1796–1797, the Russian infantry and cavalry adopted entirely new military regulations inspired by the rules in force in the Prussian army under King Frederick II (1740–1786). It quickly became apparent that the provisions of the introduced regulations had certain shortcomings, leading to the necessity of amendments and supplements through subsequent documents. Representatives of the tsarist general staff, particularly the then General Field Marshal Alexander Suvorov, author of the famous work “The Science of Victory” (1795), also developed their own military instructions.
„Sprawiedliwi wśród Narodów Świata” – międzynarodowy kontekst analizy statystycznej
Authors: Kupczewska Marta , Łopatecki Karol
Published: September 2024

The article shows the complex context of issues and problems related to statistical analysis of the “Righteous Among the Nations” phenomenon. Using databases based on the activities of Yad Vashem, it attempts to show the interpretative complexity in the compilations made with their help. The main part of the work is preceded by a description of the origin of the concept of honouring people who saved Jews during the Second World War, the scope of commemorations, the principles of awarding the title and the activity of the Commission for the Designation of Righteous Among the Nations.
Badanie zależności między eksportem a rentownością przedsiębiorstw na przykładzie spółek produkcyjnych notowanych na GPW w Warszawie w latach 2003-2010
Authors: Wyrobek Joanna
Published: September 2024

The purpose of the study is to verify the hypothesis holding that the positive effects of exports improve the profitability of businesses. The positive impact of exports on return on equity is confirmed by both a dynamic panel data model and Granger causality test. Calculations were performed for 50 manufacturing companies listed on the Warsaw Stock Exchange. The dynamic panel data model was estimated using the Blundell-Bond estimation technique.
Regional Market Integration in the SADC region: a Comparative Case Study of Botswana and Zambia
Authors:   University of Amsterdam (The Netherlands), Teixeira Elena Acebes
Published: September 2024

Regional market integration is crucial in increasing development for emerging economies. However, research has shown that, in the case of developing countries, the process of market integration faces various obstacles. This study aims to analyse the key determinants of successful market integration for developing countries, as well as to investigate under what conditions some countries may benefit more (or less) than others from market integration, particularly in the SADC region. Based on the existing literature on the main debates and theories on regional market integration of developing countries, this study has used the method of process-tracing to investigate the causal relationship between governance and institutions, market integration and development. The analysis based on this study has found that good and sound policies aimed at increasing domestic capabilities deriving from both public and private governance and institutions is vital in determining relative market integration success. The results indicate that the discrepancies found among SADC Member States hinder the process of regional market integration. On this basis, it is recommended that the linkages between the SADC Member States be strengthened through increased levels of coordination and integration.
The Development of China’s Economic Cooperation in the Horn of Africa: Special Reference to the Belt and Road Initiative
Authors:   Amity University, Noida (India), Bharti Mukesh Shankar
Published: September 2024

The study deals with China’s trade and Economic cooperation in the Horn of Africa. This research aims to focus on infrastructural development in the region under China’s Belt and Road Initiative framework. Further, the central purpose of this research is to discuss Chinese investment in Ethiopia, Eritrea, Djibouti, Kenya and Somalia. The research uses a qualitative analysis approach to discuss the research problems and tries to find out core findings. The following question deals with this study, how does China expand its trade and investment in the Horn of Africa? To what extent has China developed ties with the Horn of African countries in the context of BRI projects? As a result, China has developed a strong stance in the Horn of Africa in the context of trade and investment. This study concludes that China has enormous challenges within these countries to manage interstate issues for security purposes that are necessary for the success of infrastructure development and other BRI-related projects.