bluuebunny/crossref_metadata_2025 huggingface dataset:
Desenvolvimento e validação de método analítico para quantificação do teor de formaldeído por HPLC em leite
Authors: Canário Ana Carolina de Souza , Cerize Natália Neto Pereira , Marcante Amanda , Sa Ana Paula Nunes de , Rovare Veridiana Petenati da , Santos Wesley Feliciano dos , Oliveira Sandra Souza de
Published: June 2023

O leite é um alimento constantemente sujeito a fraudes, sendo as mais frequentes a adição de água, reconstituintes e conservantes como formaldeído (FA), utilizado para inibir o crescimento microbiano, aumentando a vida útil do produto. À medida que novas técnicas de adulteração surgem, novos métodos para detecção de fraudes devem ser desenvolvidos, com a finalidade de manter a qualidade e a autenticidade do leite. O presente trabalho tem como objetivo desenvolver e validar um método com sensibilidade de detecção de traços e uma boa capacidade em resistir a pequenas variações, com intuito de quantificar FA em leite, empregando a técnica de extração líquido-líquido, juntamente com método de cromatografia líquida de alta eficiência com detecção por arranjo de diodos (CLAE-DAD) no comprimento de onda de 360 nm. Para a validação do método aplicou-se os parâmetros analíticos de linearidade, seletividade, especificidade, precisão, exatidão, limite de detecção (LDM), quantificação do método (LQM) e, robustez. O método demonstrou ser linear na faixa de trabalho de 0,03 a 0,1 mg/L, LDM e LQM de 0,004 mg/kg e 0,01 mg/kg, respectivamente. A exatidão avaliada, apresentou na faixa de 88% a 110% de recuperação. A precisão apresentou coeficiente de variação (CV) na faixa de 1% a 4% demonstrando ser seletivo, preciso e exato. Traços de formaldeídos foi encontrada em apenas uma amostra com valor acima do LQ onde a concentração encontrada de DNPH-FA foi de 0,028 mg/kg com recuperação de 93%. Assim podendo concluir que o método foi eficaz e poderá contribuir para a segurança alimentar.
Falsas coautorías en obras musicales: ¿son lícitas?
Authors: Jiménez Alejandro
Published: June 2023

En el actual negocio de la música en América Latina, existe una controversia en torno a la inclusión de los mánager, A&Rs1 y los llamados productores ejecutivos como falsos titulares de derechos de autor sobre obras musicales en calidad de coautores. Esta tendencia representa un desafío a los principios fundacionales del derecho de autor en el contexto colombiano, ya que dichos acuerdos entre autores y coautores podrían ser ilegales. En este trabajo se intentará abordar esta temática resolviendo la pregunta: ¿Es lícito incluir a no autores en la distribución de derechos sobre una obra musical? El objetivo de este escrito es analizar este fenómeno para dar una respuesta académica a un interrogante que puede afectar el ejercicio de los derechos de autor que tienen los artistas sobre sus obras musicales.
Transferencia de tecnología y Decisión Andina 486: reforma necesaria para un nuevo modelo de desarrollo
Authors: Uribe Arbeláez Martín , Martínez Chirinos Yuranis
Published: June 2023

El fracaso del modelo de desarrollo neoliberal con su legado de pauperización e inequidad social, conlleva la obligación de plantear alternativas para un desarrollo equitativo en armonía con el planeta. Se retoman entonces las sociedades de economía mixta, empresas conjuntas y joint ventures, para mediante ellas asegurar una efectiva transferencia de tecnología, siguiendo el exitoso camino de China en este sentido. De acuerdo con la escuela económica del otro canon, se resaltan los beneficios del comercio regional, la industrialización y el valor agregado a las materias primas para generar sinergias y círculos virtuosos de desarrollo y progreso. También es vital asegurar la soberanía alimentaria. La integración latinoamericana en torno a objetivos comunes, facilitaría su consecución, como en el caso de forjar una industria farmacéutica capaz de elaborar vacunas para no repetir la desastrosa experiencia de la pandemia de la Covid-19. Controlar la inversión extranjera, garantizándole derechos, pero también imponiéndole obligaciones, así como reformar el régimen de patentes para restablecer el equilibrio con el bien común es otra acuciante necesidad, para hacer realidad el derecho de los pueblos al desarrollo.
Rivalidad aparente entre la inexistencia y la nulidad del negocio jurídico
Authors: Mendieta Pineda Jaime Alberto
Published: June 2023

La inexistencia desde sus orígenes ha sido una figura oscura, de difícil definición con disímiles posturas por parte de la doctrina europea y diversas contradicciones en la recepción por la jurisprudencia colombiana, sin embargo, hemos agrupado las tesis del derecho francés, español e italiano en cuatro grandes vertientes, para posteriormente compararlas con la jurisprudencia colombiana, la cual ha sido diversa y contradictoria en su evolución, con el fin de hacer un aporte en el proceso de unificación, garantizar los derechos a la igualdad, seguridad jurídica y legitima confianza.
Criptoactivos como mecanismo defraudatorio de los acreedores en el proceso de liquidación judicial. Una proposición normativa
Authors: Sicard Arenas Juan Felipe
Published: June 2023

Este artículo explica una de las múltiples problemáticas que representan los criptoactivos, a través del análisis de su incidencia en el derecho concursal. Se plantea la pregunta de si son verdaderamente efectivos los mecanismos procesales previstos en el proceso de liquidación judicial, para lograr el acceso a los activos de la sociedad en concurso, cuando estos están integrados en su totalidad o en gran parte por criptoactivos. Para resolver este cuestionamiento, se realiza una confrontación de las etapas del proceso de liquidación judicial con la hipótesis planteada, para arribar a la conclusión de la ineficacia de los mecanismos referidos. Así las cosas, dado que este documento tiene una intención propositiva, se expone un conjunto de soluciones jurídicas, en aras de lograr un derecho concursal efectivo y superar las problemáticas que de suyo representa la práctica.
A Pilot Study of an Educational Intervention to Increase Postpartum Medical Visit Attendance in Home-Visited Mothers
Authors: Cluxton-Keller Fallon , Bruce Martha L.
Published: June 2023

Socioeconomically disadvantaged women experience barriers to attending postpartum medical visits (PMV). This three-phase pilot study explored the feasibility, acceptability, and preliminary effectiveness of an educational intervention to increase PMV attendance in mothers enrolled in early childhood home visiting. Phases 1 and 2 occurred prior to the COVID-19 pandemic, and Phase 3 occurred during the pandemic. Home visitor implementation of the intervention with mothers was feasible and acceptable in all phases. All mothers who received the intervention reported PMV attendance. Overall, 81% of mothers reported they discussed all questions with healthcare providers at the PMV. These findings provide preliminary effectiveness for a brief educational intervention in increasing PMV attendance in home-visited mothers.
In This Issue—The Optimal Time to Give Birth
Authors: Budin Wendy C.
Published: June 2023

In this column, the editor ofThe Journal of Perinatal Educationdiscusses factors associated with determining the optimal time to give birth. The editor also describes the contents of this issue, which offer a broad range of resources, research, and inspiration for childbirth educators in their efforts to promote, support, and protect natural, safe, and healthy birth and postpartum.
The Effectiveness of Combination of Back Massage and Deep Breathing Exercises on Changes in Hemodynamic Status (SpO2) Patients of Congestive Heart Failure
Authors: Fadhila Nabella Ayu Jeihan , Rumahorbo Hotma , Sudirman Sudirman
Published: June 2023

In Indonesia, 25% of deaths are caused by heart defects. 229,696 people, or about 0.13%, were heart failure patients. The main problem that occurs in heart failure is hemodynamic changes. If not treated quickly and appropriately, hemodynamic disorders will result in multiple organ failures. Back massage and deep breathing exercise is a combination of non-pharmacological interventions whose effectiveness is not yet known in improving hemodynamic disorders in CHF patients. To determine the effectiveness of the combination of back massage and deep breathing exercise on changes in the hemodynamic status of patients with congestive heart failure. This type of research is quantitative with a true experimental design, a pre-post test design, and a control group. The sampling technique used is simple random sampling. Data analysis used repeated measure ANOVA, Friedman test, independent t-test, and Mann Whitney. The combination of back massage and deep breathing exercise is given for 3 days with a duration of 15 minutes, effectively increasing oxygen saturation (Mean±SD 98.20±0.616 =1.05 p=0.000). Giving a combination of back massage and deep breathing exercises can improve the hemodynamic status of patients with congestive heart failure. The results of this study can be used as an alternative intervention in improving the hemodynamic status and providing other pharmacological and non-pharmacological therapies.
Pengaruh Keterampilan Berkomunikasi Guru Terhadap Motivasi Belajar Siswa SMP Negeri 1 Dawarblandong Menggunakan Model Pembelajaran Kooperatif
Authors: Putri Claritha Canda , Rosdiana Laily
Published: June 2023

Tujuan dari penelitian ini untuk mengetahui pengaruh keterampilan berkomunikasi guru terhadap motivasi belajar siswa SMP Negeri 1 Dawarblandong kelas VIII. Faktor keterampilan berkomunikasi guru dan motivasi belajar siswa yang diteliti merujuk pada model pembelajaran kooperatif tipe jigsaw pada materi sistem pernapasan manusia. Model pembelajaran kooperatif tipe jigsaw dinilai sesuai dengan karakteristik materi sistem pernapasan manusia dengan mempertimbangkan aspek peran keterampilan berkomunikasi guru terhadap motivasi belajar siswa. Jenis penelitian yang digunakan adalah pendekatan deskriptif kuantitatif menggunakan metode observasi dan pengisian angket. Pengisian angket dilakukan dengan cara menyebarkan angket kepada siswa yang menjadi kelas contoh. Populasi dalam penelitian ini adalah siswa SMP Negeri 1 Dawarblandong kelas VIII. Subjek penelitian sebanyak 32 siswa di kelas VIII-1. Instrumen yang digunakan berupa angket keterampilan berkomunikasi guru berjumlah 11 butir pertanyaan, angket motivasi belajar siswa berjumlah 11 butir pertanyaan, dan lembar keterlaksanaan pembelajaran. Teknik analisis data pada keterampilan berkomunikasi guru dan motivasi belajar siswa menggunakan nilai mean, pada keterlaksanaan pembelajaran kooperatif tipe jigsaw menggunakan nilai modus dengan nilai terendah 3, dan pada pengaruh keterampilan berkomunikasi guru terhadap motivasi belajar siswa menggunakan korelasi product moment . Hasil dari penelitian ini adalah motivasi belajar siswa kelas VIII-1 SMP Negeri 1 dawarblandong tinggi, keterampilan berkomunikasi guru IPA SMP Negeri 1 Dawarblandong baik, model pembelajaran kooperatif tipe jigsaw terlaksana pada materi sistem pernapasan manusia.
STRATEGI PEMBELAJARAN BERDIFERENSIASI DALAM MEMENUHI KEBUTUHAN BELAJAR PESERTA DIDIK
Authors: Maulidia Feny Rahma , Prafitasari Aulya Nanda
Published: June 2023

Differentiated Learning Strategies (SPB) have become a popular approach in meeting the learning needs of diverse students. The purpose of this study was to conduct a literature review on SPB and how this strategy can be effective in meeting students' learning needs. The literature review method is used to collect and analyze articles, books, and other sources relevant to this topic. This study shows that SPB is an approach that involves the use of different strategies and approaches to meet the learning needs of individual students. Several strategies that are often used in SPB include reverse teaching, flexible grouping, different assignments, and the use of different resources. Research also shows that SPB can increase student motivation, engagement, and learning outcomes.

Keywords: differentiated learning strategy, learning needs, literature review, education
Prospective Development of New Service Offerings in the Urban Traffic Flow
Authors: Slobodchikov Nikolay , Dergachev Aleksey , Kuranova Ol'ga
Published: June 2023

Purpose: One of the possible solutions to the problem of congestion of the road network in conditions of a high level of motorization of cities is considered. Methods: The concept of the service “Mobility as a service” as one of the progressive methods of urban traffic management is described. The technologies that allow this service to work, while increasing the efficiency of the use of vehicles, are considered. Results: The analysis of carsharing, kicksharing and bikesharing services as a “first and last mile” transport system was carried out. Practical significance: The solution to this problem can be the integration of all existing transport systems into a single system that can have a greater impact on the efficiency of mobility of urban users.
Creating Comfortable Conditions for the Operation of Exhibition Complexes in Hot Climates
Authors: Ivanova Zhanna , Bogdanova Galina
Published: June 2023

Purpose: To consider the possibility of using modern innovative coating materials, and in particular ETFE film, in the enclosure structures when designing public buildings in different natural and climatic conditions, with the example of regions with hot climates. Method: Generalization of design principles, including those for hot climates. Analysis of climatic parameters of hot climate regions which have a significant impact on comfortable conditions of people staying in public buildings, characterized by multifunctionality, large spatial dimensions, high occupancy rates, and other factor s. To show the possibility of providing favorable conditions for people staying in such buildings in different ways: through planning and design; improvement of adjacent areas; the location of the building. To carry out the analysis of domestic and foreign experience of application of means of sun protection of buildings. To develop space-planning and structural solutions of the exhibition complex. To evaluate the effectiveness of the proposed solution through a computational study. Results: The results of the research of a range of measures aimed at improving the conditions for comfortable stay of people in the exhibition complexes are presented. The constructive solution of sun protection of the exhibition complex taking into account physical and mechanical properties of the membrane system and climatic conditions of the construction areas has been proposed. Practical significance: The versatility of using dome structures as enclosures is demonstrated. The advantage of using innovative covering materials as an alternative to traditional materials is shown.
Dependence of Hydraulic Characteristics of Gravity Sewer Pipelines on the Method of Trenchless Repair
Authors: Petrov Vladimir , Terehov Lev
Published: June 2023

Purpose: When reconstructing gravity sewer networks laid in urban and rural environments, various technologies can be used. Trenchless repairs, which are actively used in a built-up area, subsequently affect the capacity of networks, while the hydraulic characteristics of the flow depend on the accepted technology of work. Assessment of hydraulic characteristics of gravity sewer pipelines depending on the chosen method of carrying out their trenchless repair is the purpose of the study. Methods: Analytical determination of hydraulic flow characteristics in gravity pipelines after their repair by various trenchless methods and comparison of the results obtained. Results: The analysis of the obtained results shows that after reconstruction in various ways, the hydraulic parameters of the pipelines may change and not meet regulatory requirements. The necessity of carrying out analytical calculations at the stage of choosing a method for trenchless repair of gravity sewer networks is shown. Practical significance: The results of the work are recommended to be taken into account when choosing trenchless technologies for repairing gravity sewer pipelines.
The Use of New Generation Disinfectants in Solving Modern Disinfection Problems in the Water Supply and Sewerage Sector
Authors: Paramonova Lyubov' , Amelichkin Stanislav , Mahon'ko Elena , Terehov Lev
Published: June 2023

Purpose: To consider and evaluate alternative methods of water disinfection and disinfection of water supply and sewerage facilities and to select the most effective. To determine the possibility of using several agents at the same time, to select disinfectants with a biodegradable composition, the use of which will help reduce the negative impact on the environment. Methods: Comparison of the composition and effectiveness of existing disinfectants. Results: The necessity of using various combinations of disinfectants to reduce the likelihood of resistance in microorganisms to biocides is indicated. The most promising method for treating structures is the aerosol method, which allows achieving the necessary disinfection effect with small doses of the reagent. The use of multi-component disinfectants (such as the “Silver Bullet” anolyte and biocide) is safe for humans and the environment due to their composition, it also helps prevent microbial habituation to the substances. Practical significance: Due to the conditions of water intake changing for the worse and stricter regulations for the content of harmful substances in drinking water, the use of combined schemes for water disinfection and disinfection of structures has most potetial.
Sector Plate Bending: Using Computer Algebra Systems
Authors: Goloskokov Dmitriy , Matrosov Aleksandr
Published: June 2023

Purpose: To investigate the stress-strain state of a thin homogeneous isotropic plate in the form of a sector by numerical-analytical method. To consider the possibility of using computer algebra systems (CAS) to calculate sectoral plates operating under bending due to a transverse load. To demonstrate the effectiveness of applying one of these CASs through the example of the Maple system for calculations using the Ritz method — performing analytical transformations when calculating the integral that determines the total potential energy functional, forming and solving the main resolving system of linear algebraic equations with respect to unknown numerical coefficients in the formula approximating the deflection of the plate, visualization of the obtained solution. Methods: A direct method is used to solve the variational problem of minimizing the functional of the total potential energy of deformation of a thin homogeneous isotropic plate in the form of a sector — the Ritz method. The solution is constructed in the form of a series in terms of basis functions. As basis functions, polynomial functions are chosen that exactly satisfy all boundary conditions. Results: An approximate numerical-analytical solution has been obtained for the problem of bending a sectoral plate in the form of a quarter of a circle, clamped along the contour and loaded with a uniformly distributed load. The effectiveness of using the Maple analytical computing system for solving the problem of bending a sectoral plate by the variational Ritz method is demonstrated. It is shown that the resulting solution quickly converges both for deflection and for bending moments and stresses. Practical significance: The algorithm proposed in the article for solving the problems of bending sectoral plates can be recommended for practical use in determining the stress-strain state of such plates.
Axonometric Projections in Russia: Yesterday, Today, Tomorrow
Authors: Eliseev Nikolay , Paraskevopulo Yuriy , Eliseeva Natal'ya
Published: June 2023

Purpose: The history of the development of axonometric projections is considered in this work. The contribution of Russian scientists to the theory of this method is established. The analysis of the current state of the regulatory framework has been carried out. The necessity of making changes to the current standard is justified. Archival and handwritten sources have been investigated. The article shows the way of the consistent emergence, development and improvement of the theory of axonometric projections. Examples of its use in different periods are shown. The contribution of Russian scientists to the improvement of the theory of the axonometry method and its application in construction and industry is established. The main advantages of axonometry are shown: visual clarity and the possibility to determine the parameters of a real object based on such images. The inaccuracies of the axonometry theory representation in modern regulatory documents are analyzed. The necessity to depict axonometric axes when creating images is indicated. Axonometric projections are considered as a method of geometric modeling in computer-aided design systems, which allows creating visual planar models of artificial structures and other objects. This also allows to create a unified information model of the object, to carry out joint work of various specialists at the design stages, to ensure the storage and editing of information throughout the entire life cycle of the object. Methods: To achieve results, various research methods have been applied: theoretical analysis of historical, scientific literature, normative and program-methodical documentation, study of the experience of graphic images of foreign and domestic specialists, generalization and systematization of scientific provisions on the research topic, analysis of the results of research work. Results: The necessity of making changes to the existing regulatory documents is justified. Practical significance: The correct display of axonometry in regulatory documents will improve its practical application and specialist training.
Refined Test Procedure for the Parking Brake of Freight Cars
Authors: Zverev Mihail , Komaydanov Aleksey , Smirnov Anatoliy
Published: June 2023

Purpose: A refined test procedure for the parking brake of freight cars is described, which simultaneously satisfies the requirements of two regulatory documents: GOST 26686-96, which establishes the moment applied to the handle (steering wheel) of the parking brake, not more than 300 N, at which a single freestanding loaded car on a slope of at least 30‰ must be retained, and GOST 34434-2018, which sets the design (test) moment of force applied to the parking brake handle at 100 N∙m. Methods: Stage-by-stage processing of test results is carried out: initially, the average values of pressing force and the actual pressing force on a single brake block is determined. Then the coefficient of friction between the blocks and the wheel and the maximum slope of the track, on which the railway rolling stock is retained by the parking brake, are calculated. The solution of the problem is based on the iteration method, which must be applied twice: at the first stage, in order to find the value of the total pressing force on the brake blocks from the action of the parking brake, taking into account that the maximum slope of the track, on which the train is retained by the parking brake, equals 30‰, then at the second stage, such a value of the moment on the parking brake drive shaft is selected so that the value of the required pressing force on the brake blocks from the action of the parking brake is the same as with the maximum slope of the track id = 30 ‰, after which the obtained results are evaluated and compared with the normative values. Results: An updated method for testing the parking brake of freight cars has been developed. Practical significance: The application of this technique will allow taking into account the requirements of two regulatory documents at the same time preventing their contradiction.
Railway Disc Brake with Thermally Insulated Friction Assemblies Containing Materials with Different Friction Properties
Authors: Krivosheya Dar'ya
Published: June 2023

Purpose: Description of the design of the disc brake with thermally insulated friction units and the peculiarities of its manufacture. Methods: Analysis of the properties of friction materials for friction units of the railway disc brake. Results: The design of disc brake with thermally insulated friction units is proposed, a characteristic feature of which is thermal insulation of friction units A and B from each other. In addition, different friction materials are used in friction units – brake discs and brake linings. The basic principle of the disc brake is to compensate for the friction force of the friction assembly A in low temperature conditions where the carbonbased friction material is placed. Features of brake manufacturing are given. It is noted that the recommended material for thermally insulated working parts of the disc brake is chrysotile-asbestos. This material has a low thermal conductivity and an acceptable cost. It is recommended to use adhesive joints based on ABRO TM-185 glue by thermal insulation of brake discs. Practical significance: The design and features of the manufacture of a disc brake with thermally insulated friction units are described, as well as the best friction materials for it are determined. The results of the study can be used in specialized and locomotive manufacturing enterprises in order to eliminate the existing drawbacks regarding the friction characteristics of the friction materials used, as well as to reduce the cost of manufacturing a carbon-based disc brake.
Review of the Software Algorithm for Diagnosing the Residual Life of Lithium-Ion Batteries of Traction Rolling Stock
Authors: Borisov Pavel , Vorob'ev Aleksandr
Published: June 2023

Purpose: Review of the algorithm for assessing the residual life of the lithium iron phosphate battery in the process of functional diagnostics of the electric energy storage device, based on the measurement of disturbing influences of current pulsations. Methods: Using the result of previously conducted experimental studies on the measured parameters of the lithium-ion battery pack when working with the electric energy converter, a set of statistic data is assumed, which by means of the described algorithm will produce an estimate of the remaining life of the battery cell. Results: The software algorithm for functional diagnostics of the lithiumion battery pack when working in the direct current link with the frequency converter based on the previously conducted physical experiment that collected statistical parameters of the lithium-ion battery pack in operation is considered. Practical significance: The conducted review of the statistical data of the investigated storage device gives the possibility to carry out functional diagnostics of the current resource state of the lithium-ion battery pack.
Impactos do feminismo no cinema da China Continental
Authors: Soler Jorge Marina
Published: June 2023

Neste artigo pretendemos pensar a influência do feminismo no cinema da China continental elaborando, em primeiro lugar, um panorama sobre a presença feminina no cinema desse país no período clássico e na era maoísta. Em seguida analisaremos o filme Dead Pigs (2018), uma co-producão sino-estadunidense dirigida pela cineasta Cathy Yan, procurando identificar posturas críticas a certos valores capitalistas e masculinistas que se desenvolvem na China desde a abertura econômica em 1978. Nossa metodologia une a revisão da bibliografia concernente, seja sobre cinema seja sobre a China contemporânea, com destaque para Zheng Wang, e também a análise fílmica. Nossa hipótese é que, ao mostrar o imbricamento de valores capitalistas e masculinistas que permeia a sociedade contemporânea chinesa, Cathy Yan, de certa forma, atualiza o legado do feminismo do cinema chinês, que em momentos importantes de sua história soube elaborar uma crítica indissociavelmente feminista e classista.
Lygia Pape, professora
Authors: Sommer Michelle Farias
Published: June 2023

O texto traça anotações sobre as realizações docentes da artista Lygia Pape (1927-2004) ocorridas no Museu de Arte Moderna do Rio de Janeiro - MAM Rio (1969-1971); Faculdade de Arquitetura Santa Úrsula (1972-1985); Escola de Artes Visuais do Parque Lage - EAV (1976-1977) e Escola de Belas Artes da Universidade Federal do Rio de Janeiro - EBA/UFRJ (1981-1999). Definindo-se como “intrinsecamente anarquista”, suas práticas pedagógicas “anti-aulas” seguem a mesma direção: reivindicavam liberdade irrestrita para a criação e pautavam-se no descondicionamento do ensino em direção às entradas em estados de invenção. Nesse contexto, o projeto “TEIA” - desenvolvido com alunos, na floresta da Escola de Artes Visuais do Parque Lage, no final da década de 1970 - é trazido para o debate a fim de explorar experimentos sobre formas não lineares de participação, colaboração e ação coletiva.  No fundamento de ‘TEIAR’ e ‘o novo princípio de deslocar-se para cima, para baixo, para um lado ou para o outro: sem prejuízo de um só ponto de vista’ está um ponto de partida para modos de criação conjunta no radical experimental convergente entre prática artística e prática pedagógica em Lygia Pape.  O texto explora, à luz dos levantes contemporâneos, a hipótese de um viés feminista presente nas diretrizes educacionais da artista que contribui para a reconfiguração das fontes e conceitos do que hoje debatemos como perspectivas feministas latino-americanas.
Feminist art and art history in state socialist Poland, as seen through all-women exhibitions
Authors: Jakubowska Agata
Published: June 2023

This essay discusses the relationship between feminism and the art world in state socialist Poland. Contrary to the narrations that are centred around the second-wave feminism developed in the West, this essay concentrates on the significance of the socialist project of the emancipation of women. Its meaning is demonstrated through the study of all-women exhibitions, more precisely of three shows that were organised at those moments when women’s issues were intensively discussed in Poland: Women Fighting for Peace (Cracow, 1952), Women’s Art Festival (Poznań, 1980), and Polish Women Artists (Warsaw, 1991). The main questions addressed in the analysis are what discourses on women and women artists influenced the art world at a given period and how they evolved concerning the changing political situation. The study shows that the socialist project of women’s emancipation played an important role, both positively and negatively, in the development of feminist art history and activism in Poland.
Editor’s intro
Authors: Chernykh S.  I.
Published: June 2023

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A set of pedagogical conditions for the professional adaptation of future officers to the specifics of service in special forces units of the National Guard of Russia
Authors: Chernoivanov A. V. , Sidorina T. V.
Published: June 2023

Introduction. The relevance of the article is due to the problem of choosing pedagogical conditions that contribute to the effective adaptation of future officers to the specifics of service in the special forces units of the National Guard of Russia.Purpose setting. The purposes of the study are to analyze the concept of «pedagogical condition», to define it, to create the algorithm for obtaining a set of pedagogical conditions that contribute to the effective adaptation of future officers to the specifics of service in the special forces units of the National Guard of Russia.Methodology and methods of the study. The study includes a review of bibliographic and normative sources on the problem of identifying pedagogical conditions that contribute to the pedagogical adaptation of future officers to the specifics of service in the special forces units of the National Guard of Russia.Results. Three groups of pedagogical conditions for the professional adaptation of future officers to the specifics of service in units of the special forces of the National Guard of Russia have been identified: «Planning and organizational», which includes taking into account in the educational activities of the Faculty of the special forces of the Military institute technologies for the professional adaptation of future officers to the specifics of service in the special forces units of the National Guard of Russia; and the use of the educational and methodological cluster of professional adaptation at the Faculty of special forces; «Motivational and analytical», which includes support for the positive motivation of future officers to serve in the special forces units of the Russian National Guard Troops and psychological and pedagogical support for future officers in overcoming the difficulties of professional adaptation to the specifics of service in the special forces units of the Russian National Guard Troops; «Control and regulation», including the study of the experience of the service of officers who participated in the resolution of local conflicts and a stage-by-stage assessment by future officers of the level of functional (workable) state they have reached; level of discipline and organization; effectiveness in mastering the basics of military professional activity.Conclusion. In the final part of the work, it is said that the research problem is of a practice-oriented nature, it allows us to show that the use of the algorithm of management functions made it possible to substantiate and formulate the pedagogical conditions for the professional adaptation of future officers to the specifics of service in special forces units. Using of them in a military institute increases the efficiency of the technology of professional orientation of future officers to the specifics of service in the special forces units of the National Guard of Russia.
Professional identity and hardiness of future psychologists before and after the COVID-19 pandemic
Authors: Bekhter A. A. , Gagarin A. V. , Grechko A. A.
Published: June 2023

Introduction The impact of the pandemic is prolonged, changing people's attitudes towards the meaning of relationships, life and professional activities. Future psychologists found themselves in a difficult situation during the pandemic: it was assumed that they would be able to show resilience and support their loved ones, to find new meaning in the profession they were acquiring. But in reality, it turned out that the students themselves needed psychological support, many of them showed disappointment in the profession.Purpose setting. The purpose of this study is to assess the parameters of professional identity and resilience before and after the COVID-19 pandemic. The materials of two empirical studies obtained on a sample of students (future psychologists) of different courses at the Pacific State University before and after the COVID-19 pandemic are presented. The 2019 study (N = 78) included respondents aged 17 to 25 (M = 19.8; SD = 0.65), in the 2022 study (N = 78) ‒ aged 17 to 25 (M = 20.3; SD = 0.45).Methodology and methods of the study. The following methods were applied: hardiness survey (adapted by D. A. Leontiev, E. I. Rasskazova), professional readiness method (A. P. Chernyavskaya); questionnaire of professional identity of students – future psychologists (U. S. Rodygina).Results. The analysis of correlations in two different groups allowed us to identify certain specificity of resilience in relation to professional identity before and after the pandemic. So, before the pandemic, autonomy of choice and risk taking were positively related, a passive position in acquiring a profession was negatively related to other parameters of resilience. After the pandemic, a dual nature of relationships was found, which clearly delineated students who remain in the profession and those who passively continue to study, and the indicator of involvement in life is positively associated with an active strategy and positive emotions for the future profession. The main differences among students, confirmed statistically, before and after the pandemic were in the parameters «Negative emotions associated with the dissatisfaction of a person's needs in this profession» and «Risk acceptance».Conclusion. These differences and the nature of correlations indicate a rethinking of their positions in the acquired profession and a change in the possibility of taking risks in a difficult situation. The results can be used in the training of future psychologists, including personal growth trainings and self-help groups.
Social elevators and their perception by students
Authors: Sevostyanov D. A. , Gainanova A. R. , Pechin Yu. V.
Published: June 2023

Introduction. Society is a hierarchical system in which active elements, that is, individuals, are interested in acquiring a higher position. This is especially true for young people who are just determining their life prospects. Social institutions that allow you to move to a higher social position are commonly referred to as «social elevators». The theoretical basis of this study is the doctrine of systemic inversions. System inversion is a form of relations in hierarchical systems, in which some lower element acquires a dominant value in this system, but does not leave its initially subordinate position. Inversion in a hierarchical system occurs due to the fact that several organizational principles operate simultaneously in such a system, each of which determines the hierarchical position of subordinate elements. Systemic inversion occurs when the action of one organizational principle contradicts the action of another such principle (or several ones). The action of one or another social elevator makes it possible for the subject to change his social status in relation to any organizational principle in the social hierarchy. Thus, the action of the social elevator can both create inversions in the social system and contribute to their resolution.Purpose setting. In this study, the university students' ideas about the future use of social elevators were studied. The study was of a pilot nature.Methodology and methods of the study. The study used a specially designed questionnaire. A total of 290 respondents (undergraduate students of various fields of study) were interviewed.Results. Data were obtained on which social elevators students consider to be the most important for themselves. The most significant are such social elevators as business, professional career in employment, marriage, as well as creative self-realization. Further education, as a social elevator, is reliably more often mentioned by girls than boys.Conclusions. The study of the social elevators preferred by students should be continued in the future; this information is necessary for the formation of educational and social policy.
The higher education system of Russia: A look into the future
Authors: Ignatiev V. P.
Published: June 2023

Introduction. In connection with Russia»s withdrawal from the European level system of higher education based on the principles of the Bologna Declaration, the question of which way Russian universities should move on has become acute. It is clear that in modern conditions, a return to the Soviet system of higher education is impossible. At the same time, Russian universities have already managed to adapt to a certain extent to the level system of higher education, seeing in it certain advantages caused primarily by a practice-oriented approach providing for the training of specialists for a market economy.Purpose setting. The purpose of the article is to propose possible ways to modernize the Russian higher education system after abandoning the basic principles of the Bologna Declaration.Methodology and methods of the study. The methodological basis of the study was the systems thinking that reveals the essence of the changes taking place and how certain changes can affect the holistic process of functioning of higher education in Russia.Results. To achieve the purpose of the study, a theoretical analysis of scientific, popular science, educational literature on the subject of the study was carried out; analysis of educational and methodological documentation (curricula, basic professional educational programs, work programs of disciplines), regulatory documents (FSES, professional standards, approximate basic educational programs, professional standards, instructional letters of the Ministry of Education and Science of Russia, etc.). The main features of the functioning of Russian universities in the Soviet and post-Soviet periods are considered. Various aspects of the functioning of higher education are touched upon, on which the quality of training of future specialists depends to a greater extent.Conclusion. Further progressive development of higher education in Russia is possible only if all factors affecting the processes taking place within certain university are taken into account. And the main task today should be a collective search for ways to further modernize the Russian higher education system, taking into account the positive experience accumulated by universities in various areas of their functioning.
Effect of Regenerative Braking on the Life of Battery
Authors: Kumar Ramesh C. , Chatterjee Dipankar , Barman Barnali , Das Partha Pratim , Taler Dawid , Taler Jan , Sobota Tomasz
Published: June 2023

The automobile industry is often believed to be moving towards electric vehicles. Hybrid electric vehicles (HEVs) and electric vehicles (EVs) are anticipated to dominate the automotive industry. Regenerative braking is one of the modern approaches that recharge the battery by extracting the kinetic energy from the braking thus improving the vehicle range. However, the rate of current supplied by regenerative braking to the battery is a major concern as lithium-ion (Li-ion) is susceptible to failure due to the intensity of the charging-discharging rate, and operating temperature. So, this review article focuses on the effect of regenerative braking on the life of the battery and measures being taken to protect the battery from higher charging during regenerative braking. Various research articles are considered for observing the effect of regenerative braking on battery life. It is found that longer duration charging current obtained from regenerative braking that is irrespective of current intensity is the prominent factor of battery deterioration. If the SOC and the temperature are not in the optimal range, the Lithium plating rate increases. However, a higher level of regenerative braking increases the battery life even at high SOC and temperature by reducing the Depth of Discharge (DOD) and by using shorter recharging periods.
Infectious Disease Diagnostic Technologies for People Living in Extreme Poverty: An Unmet Need
Authors: Anyaduba Tochukwu , Irechukwu Obiageli , Anyaduba Uchechukwu
Published: June 2023

Diagnostics is believed to drive about 70% of medical interventions, but this may not be true for all demographics. With more than 30% of the African population living in extreme poverty ($1.9 per day - 2022); and healthcare costs competing unfavorably against unbridled access to antibiotics and herbal concoctions, especially in Sub-Saharan Africa, how do you convince such a people to choose diagnostics first? More importantly, how do you design a medical device targeted at meeting the diagnostic needs of this demographic? In developing diagnostic devices for such a market, what is worth sacrificing? How dire is the need for advanced technologies in devices developed for such a demographic? These are questions that remain unaddressed by the technological breakthroughs and current research in medical device development, especially for infectious disease diagnostics. The objective of this paper is to underscore critical concerns which must be considered in the bid to successfully design medical diagnostic devices for Africa and perhaps, other limited-resource settings. It is also written as a suggestive guidance document for researchers whose interest is in the development of infectious disease diagnostic platforms for rural Africa and similar limited-resource environments.
Obesity in Nursing Home Patients: Association with Common Care Problems
Authors: Bauer Silvia , Eglseer Doris , Großschädl Franziska
Published: June 2023

(1) Background: There is not much research about obesity in nursing homes although knowledge will help us to develop customized treatment plans and prevention strategies, which may help to decrease the burden for all persons involved. The objective of conducting this study was to describe the prevalence of obesity and the association between obesity and care problems in nursing home patients. (2) Methods: This study is a secondary data analysis of data collected in an annually performed cross-sectional study called “Nursing Quality Measurement 2.0”. A standardized and tested questionnaire was used to collect data. (3) Results: 1236 nursing home patients took part and 16.7% of them were obese. The multivariate logistic regression analysis results show that urinary incontinence is significantly associated with the presence of obesity (OR 2.111). The other care problems of pressure injuries, fecal and double incontinence, physical restraints, falls and pain were not associated with obesity. (4) Conclusion: The results indicate that, in the nursing home setting, health care staff should pay special attention to the patients’ nutritional and continence status and help patients maintain a normal, healthy weight. Conducting more studies with larger sample sizes is recommended, as this will allow differentiation among different obesity classes.
Behavior of C70 Fullerene in a Binary Mixture of Xylene and Tetrahydrofuran
Authors: Makhmanov Urol K , Esanov Shaxboz A , Sidigaliev Dostonbek T , Musurmonov Kayyum N , Aslonov Bobirjon A , Chuliev Tohirjon A
Published: June 2023

The self-organization properties of C70 fullerene molecules in a xylene/tetrahydrofuran binary mixture were studied for the first time by optical absorption, refractometry, and dynamic light scattering. A correlation has been established between the change in the refractive index of the C70/xylene/tetrahydrofuran solution and the degree of self-organization of C70 molecules in the medium at various concentrations and storage periods of the solution. It is shown that the features of the optical absorption spectrum of C70/xylene/tetrahydrofuran at a fixed low concentration of the fullerene are sensitive to its storage time. It was determined that the beginning time of the formation of C70 nanoclusters and their final size depend on the concentration of fullerene and the time of keeping the solution. The observed nature of the C70 fullerene solution in a binary mixture may help to elucidate the mechanism of self-organization in the future.
Styletubation in Bariatric Surgery
Authors: Wu Bor-Gang , Luk Hsiang-Ning , Qu Jason Zhensheng , Shikani Alan
Published: June 2023

Direct laryngoscope and videolaryngoscope are the dominant endotracheal intubation tools. Styletubation technique (using a video-assisted intubating stylet) has shown its advantages regarding in short intubation time, high success rate, less stimulation, and operator’s satisfaction. The learning curve can be steep but easy to overcome if the technical pitfalls could be avoided. Conditions make styletubation challenging include secretions/blood, short/stiff neck, restricted mouth opening and cervical spine mobility, anatomical abnormalities over head and neck regions, and obesity, etc. In this clinical report, we present the effectiveness and efficiency of routine use of the styletubation for tracheal intubation in a super-super obese patient (BMI 103 kg/m2) undergoing bariatric surgery with laparoscopic sleeve gastrectomy.