bluuebunny/crossref_metadata_2025 huggingface dataset:
Agroecología, organizaciones y afectos. Las intervenciones de técnicos agrónomos en el cinturón hortícola platense (Argentina)
Authors: Martínez Darío Gabriel
Published: March 2023

En la Argentina, la mayor producción de hortalizas frescas se encuentra localizada en el cinturón hortícola de La Plata. El incremento del sector, durante los últimos años, ha sido considerable a partir de la mano de obra de trabajadores migrantes bolivianos. Actualmente, organizaciones de productores y profesionales de diferentes dependencias estatales promueven una transición agroecológica que modifique la producción convencional de hortalizas. Entre 2016 y 2018 la combinación de la crisis económica y los temporales climáticos adversos propició que el discurso agroecológico se instale en las organizaciones de productores. Si bien trabajan desde hace tiempo en la región, los profesionales técnicos del Estado tuvieron un lugar preponderante en ese proceso. A partir de la realización de entrevistas etnográficas a técnicos agrónomos, problematizamos sus intervenciones en estos contextos. En este artículo se indaga el trabajo que realizan profesionales estatales, la circulación de saberes y la construcción de vínculos que realizan con productores. De esta manera se pudo reponer tres ámbitos de intervención de estos técnicos: el discurso agroecológico como innovación, la dimensión organizacional y la trama de afectos que construye confianza.
China en el orden liberal internacional: debates globales y lecturas desde América del Sur
Authors: Rubiolo Florencia , Fiore-Viani Gonzalo
Published: March 2023

El debate en torno al rol de China en el orden internacional actual continúa partiendo las aguas dentro de las discusiones teóricas de las Relaciones Internacionales. ¿Está Beijing buscando establecer un nuevo orden? ¿O, partiendo de la relativa debilidad del orden liberal internacional, está redefiniendo algunos principios, pero aun así contribuye a sostenerlo?  El objetivo del artículo es analizar el rol de la República Popular China en el orden internacional y las implicancias que puede tener en la definición de su rol en el orden regional de América del Sur. El abordaje metodológico es de naturaleza cualitativa. Se parte de la revisión de fuentes secundarias para construir la discusión teórica central. Luego se utilizan fuentes primarias estadísticas y secundarias bibliográficas y documentales, para analizar tres casos específicos: Argentina, Brasil y Chile. Se concluye que el rol de China a escala global, y regional en América Latina, debe comprenderse aún dentro del orden internacional actual, en el cual cumple una función de sostenimiento, particularmente mediante la gobernanza global multilateral.
 
Abstract
The debate around the role of China in the current international order continues to split the waters within the theoretical discussions of International Relations. Is Beijing seeking to establish a new order? Or, starting from the relative weakness of the international liberal order, is it redefining some principles, but still helping to sustain it? The main objective of the article is to analyze the role of the People's Republic of China in the international order, and the implications that it may have in the definition of its role in the regional order of South America. The methodological approach is qualitative, with an in-depth review of secondary sources to construct the central theoretical discussion, and then using primary statistical and secondary bibliographic and documentary sources for the analysis of three specific cases: Argentina, Brazil and Chile. It is concluded that the role of China at a global level and in Latin America must still be understood within the current international order, where it plays a role in sustaining it, particularly from the multilateral global governance perspective.
Impacts of Coronavirus Disease 2019 Pandemic on Sleep Pattern
Authors: Rabiei Samira , Nazari Maryam
Published: March 2023

The ongoing coronavirus disease 2019 (COVID-19) pandemic is the third global crisis after two epidemics of severe acute respiratory syndromes. It has affected general public besides health care systems and governments. Confinements and lock downs have changed waking up time and going to bed time, ultimately affecting circadian clocks that can disturb sleep quality which can lead to anxiety, stress, and depression. This puts the most susceptible group -young adults and females- at risk of psychological disorders and even inflammatory events. Several kinds of sleep disorders due to COVID-19 including insomnia, sleep apnea, sleepiness during daytime, post-traumatic-like sleep dysfunction, abnormal dreams, and restless legs syndrome have been reported. As sleep deprivation can alter circadian clock and weaken immunity which makes human more susceptible to pulmonary inflammatory process of COVID-19 and even enhance its manifestations, it should be considered as an urgent complication that needs to be treated. Furthermore, longstanding effects of sleep disturbances during COVID-19 pandemic need to be elucidated.
Applications of Experiential Learning Theory to Graduate Medical Education
Authors: Lee Young Hee , Kim Byung Soo
Published: March 2023

The purpose of this study was to introduce the concepts of experiential learning and the Kolb’s model, and to review some applications of experiential learning theory in graduate medical education. The published literature on GME and education for general practitioners applying the experiential theory and the Kolb’s model was reviewed. Experience learning defined the cyclical learning process which emphasizes the learners’ reflective thinking of the learners’ concrete experiences and their active participation in continuous learning actives. Kolb includes this ‘cycle of learning’ as a central principle in his experiential learning theory. This is typically expressed as a four-stage cycle of learning. Kolb’s cycle moves through concrete experience(CE), reflective observation(RO), abstract conceptualization(AC) and active experimentation(AE). Components of continuing education of the adult learner were based on autonomy, context of learning, and competence and performance as educational objectives. Some strategies for graduate medical education were reflective thinking, self-directed learning, morning reporting and feedback with peer review, etc. Opportunities for learning from experience in practical life can be made to enhance reflective thinking and performance of practitioners. Strategies to develop reflective practice among physicians should be explored by further research.
Competency-Based Medical Education: Possibilities and Limitations
Authors: Kim Young Jon , Lim Cheol Il
Published: March 2023

Competency and competency-based education are topics of great interest to educators and administrators at most stages of undergraduate and postgraduate medical training. A competency-based approach in medical setting has been valued as a more effective way to strengthen learners’ performance compared to the traditional education program. This article aims to explore theoretical and practical possibilities and limitations of competency-based medical education. We approached the topic in 3 gradual steps: the comprehension of background of competency-based education, the conceptual understanding of competency in professional education, and the exploration of possibilities and limitations of competencybased medical education. The last step of analysis was performed in three dimensions: educational objectives, references to judge performance, and performance evaluation criteria. In conclusion, we suggest 4 factors which need to be considered to implement a competency-based medical education.
The Concept and Development Direction of Medical Professionalism
Authors: Kwon Hyojin , · Younghee Lee , Ahn Ducksun
Published: March 2023

This paper summarizes the concept of medical professionalism and presents its direction. Toward this end, the authors compare the characteristics of a professional with those of a craftsman and a technician. The authors describe the construct of medical professionalism on the assumption that knowledge and technical competence are necessary but not sufficient conditions for the professional. The construct of medical professionalism could be defined variously, depending on the time, place, or collectivity. The authors furthermore summarize cases for the development process of medical professionalism and then compare Korean medical professionalism with that of the West. Finally, the authors present the development direction of medical professionalism in Korea.
A Peer Tutoring Program Introduction and Effects Analysis in Medical College
Authors: · Su Hyun Lee , Jeon Woo Taek , Yang Eun Bae
Published: March 2023

This study was conducted to analyze the effects of peer tutoring programs and to introduce the peer tutoring program in medical College. Forty medical students participated in the study and data were collected through surveys and interviews. Through the interviews, we investigated the peer tutoring experiences of tutors and tutees, and what they perceived that they accomplished. Correlation analysis was conducted to investigate the tutoring process variables that affect the academic achievement of tutees. It was found that tutors and tutees reported achievements in the schoolwork, relationships, and emotional aspects.
History and Future of the Korean Medical Education System
Authors: Ahn Duck-Sun , Han Hee-Jin
Published: March 2023

Western medicine was first introduced to Korea by Christian missionaries and then by the Japanese in the late 19th century without its historical, philosophical, cultural, social, political, and economic values being communicated. Specifically, during the Japanese colonial era, only ideologically ‘degenerated’ medicine was taught to Koreans and the main orthodox stream of medicine was inaccessible. Hence, Korean medical education not only focuses on basic and clinical medicine, but also inherited hierarchical discrimination and structural violence. After Korea’s liberation from Japan and the Korean war, the Korean medical education system was predominantly influenced by Americans and the Western medical education system was adopted by Korea beginning in the 1980s. During this time, ethical problems arose in Korean medical society and highlighted a need for medical humanities education to address them. For Korean medical students who are notably lacking humanistic and social culture, medical humanities education should be emphasized in the curriculum. In the Fourth Industrial Revolution, human physicians may only be distinguishable from robot physicians by ethical consciousness; consequentially, the Korean government should invest more of its public funds to develop and establish a medical humanities program in medical colleges. Such an improved medical education system in Korea is expected to foster talented physicians who are also respectable people.
A versatile nuclei extraction protocol for single cell multiome ATAC and gene expression in non model species v2
Authors: Ruiz Daniels Rose
Published: March 2023

Here we present a modified version of : dx.doi.org/10.17504/protocols.io.261genwm7g47/v2 that was used to successfully extract nuclei from an array of different tissue types for single cell sequencing and modify it with the purpose of extracting nuclei for single cell multiome ATAC and gene expression on the 10x chromium. The modifications for this protocol include: different concentration of RNase inhibitors, different quantities for nuclear isolation buffer, removal of unnecessary steps as well as QC specific for multiome analysis. If you are looking to use this protocol for bulk ATAC-seq use of protease inhibitor cocktail PIC is recommended instead of RNase inhibitor on the snRNA-seq version of this protocol (dx.doi.org/10.17504/protocols.io.261genwm7g47/v2) please get in touch with the authors if you are unsure on how to do this.
DNA - Ball Python DNA Amplification with TFEC primers v1
Authors: Avila Cervantes Jose
Published: March 2023

PCR amplification with Tfec set Exon 5 to genotype Piedball morph in Ball python (Python regius) LEFT PRIMER AACTCAGAGCACTCCATGACC RIGHT PRIMER CAGGTGTGCCCCTTTCATAA
Efeito do uso de antidepressivos na redução de escores de depressão em mulheres com câncer de mama em tratamento com quimioterápicos antineoplásicos: Revisão Sistemática e metanálise v1
Authors: not provided brunosilva
Published: March 2023

PRotocol for a sytematic review
Soluble and insoluble A-SYN fractionation v1
Authors: not provided michela.deleidi
Published: March 2023

Soluble/insoluble alpha-synuclein fractionation is a technique used to separate different forms of the alpha-synuclein protein based on their solubility properties.
Selection of buffer for the HPLC estimation of Posaconazole v1
Authors: not provided annamalai.rama
Published: March 2023

Introduction: Posaconazole is a widely used antifungal drug, and its accurate quantification is essential for quality control and assessment of its pharmaceutical products. This study aimed to develop and validate a reverse-phase high-performance liquid chromatography (HPLC) analytical method for quantifying Posaconazole in bulk and dosage form. Methods: The HPLC method was developed and validated based on International Conference on Harmonisation (ICH) guidelines. The developed method was then applied to quantify Posaconazole in a marketed tablet formulation. The method's specificity, linearity, precision, accuracy, robustness, and stability were evaluated. Results: The developed HPLC method showed good linearity over a 2-20 μg/mL concentration range. The percentage recovery of Posaconazole from the bulk and marketed formulations was found to be 99.01% and 99.05%, respectively. The intra-day and inter-day precisions were less than 1%, and the method was stable under different conditions. The HPLC method was successfully applied to quantify Posaconazole in the marketed formulation. Conclusion: The developed and validated HPLC method is reliable and efficient for analyzing Posaconazole in bulk and dosage forms. The method's accuracy, precision, specificity, linearity, robustness, and stability demonstrate its effectiveness. The method can be used for the quality control and assessment of Posaconazole-containing pharmaceutical products.
Neuromelanin staining (Fontana-Masson staining)-DAB staining on midbrain organoids v1
Authors: not provided michela.deleidi
Published: March 2023

Fontana-Masson staining is a silver staining technique that is commonly used to identify melanin-containing cells. That was combined with DAB-TH staining that works by using an antibody to detect the presence of TH, followed by a reaction with a substrate (DAB) that results in the formation of a brown-colored product at the site of the antigen-antibody interaction.
DNA - Ball Python DNA Extraction from sheds v1
Authors: Avila Cervantes Jose
Published: March 2023

Protocol to extract DNA from Ball Python (Python regius) dry sheds using Phenol:Chloroform:Isoamyl Alcohol
Cancer Therapeutics: Structure-Based Drug Design of Inhibitors for a Novel Angiogenic Growth Factor
Authors: Nambigari Navaneetha
Published: March 2023

Angiogenesis, the formation of new blood vessels, is a critical and rate-limiting tumor growth step controlled by pro-angiogenic factors and specific inhibitors. Tumor angiogenesis is essential for cancer progression and metastasis. Platelet growth factors (PDGF) and their receptors (PDGFR) are associated with tumor angiogenesis through overexpression of PDGF. Inhibition of PDGF and its signaling pathway is a new approach to the discovery of anticancer therapeutic agents. The present study focuses on the PDGF-C protein in the identification of novel anti-angiogenic compounds. MODELLER 9.10 software allows users to create and refine a 3D homology model of the PDGF-C protein (345 a.a. length). Secondary structure analysis of the 3D energy model reveals 16 β sheets held together by four cation–π and one π–σ interactions, and three salt bridges. The quality of the model is assessed using the Ramachandran plot (90 percent amino acids in the favorable region) and the ProSA server (Z-score = –2.28). Active site residues are identified using Castp, QSite search engine, site map, and protein docking of the protein to its receptor. In addition, virtual screening is performed at the active site using the Glide module of the Schrodinger Suite. Glide score, glide energy and ADME are being measured to discover new benefits of pyrazolone and pyrrolidine-2,3-dione scaffolds as potent PDGF-C antagonists for anti-angiogenic cancer chemotherapy drugs.
SEARCH FOR A SOLUTION OF THE CAPACITATED VEHICLE ROUTING PROBLEM (CVRP)
Authors:   Taras Shevchenko National University of Kyiv, Ukraine, Golovanenko M.
Published: March 2023

This paper focuses on the capacitated vehicle routing problem (CVRP), which is a challenging optimization problem faced by logistics companies. The objective of CVRP is to determine the optimal routing of a fleet of vehicles to deliver goods to a set of customers, subject to various constraints such as vehicle capacity and distance. The optimization of CVRP can lead to significant cost savings for logistics companies, which is why it has received a lot of attention from researchers and practitioners. To solve the CVRP, the author has proposed an interface based on Dash components, which allows users to input information necessary for setting up and solving the problem in the format of Microsoft Excel files. The service accommodates both the coordinates of the logistics network points and the matrix of distances between them as input data. The graphical visualization of the routes determined by the optimization package is also provided, making it easy for users to interpret the results. One of the key features of the service is its ability to automatically construct the distance matrix, which can be a time-consuming and error-prone process when done manually. The input data for the network of logistics points can be presented in the form of coordinates, and the service can estimate distances in two ways - the method of distances of Manhattan blocks and the method of Euclidean distances. This flexibility allows users to choose the most appropriate method for their particular use case. The service is hosted on the Google Cloud Platform, which enables users to access and work with it from energy-efficient mobile devices as well as computers. This is particularly important in the context of the energy crisis caused by the aggressor in Ukraine, where energy efficiency is critical. The service's accessibility from energy-efficient devices makes it a valuable tool for users seeking to optimize their operations in the face of energy constraints.
THE LABOR MARKET OF POLAND AND UKRAINE UNDER THE INFLUENCE OF THE NEW MIGRATION WAVE
Authors:   Lviv National University, Ukraine, Kravchenko I. S.
Published: March 2023

he new wave of migration caused by the full-scale war in Ukraine has caused massive forced displacement of the population, both within the country and outside its borders. The situation with large-scale external migration is becoming critical and, poses a threat to the national security of Ukraine due to the non-return of a part of migrants in the post-war period: demographic changes due to the rapid reduction of the population of Ukraine, threats to socio-economic development, aging of the population, excess of demand over supply of labor in the labor market, etc. In order to clarify the changes taking place in the labor markets of Poland and Ukraine under the influence of the new migration wave, the role and significance of Ukrainian labor migrants in Poland before the start of the war was analyzed: the volumes, causes, main growth trends and probable consequences of external labor migration were determined; an assessment of the impact of labor migration and transfers on the Ukrainian economy in the pre-war period was carried out. An analysis of the number of Ukrainian forced migrants to European countries, in particular, to Poland, after 02/24/2022 was carried out. The influence of the new wave of migration from Ukraine on the labor markets of Poland and Ukraine is studied. Difficulties and obstacles affecting the employment of Ukrainian migrants in recipient countries are analyzed. Consequences caused by mass labor migration for the economy of Poland and Ukraine are considered. It has been proven that the additional labor force from Ukraine contributes to the rejuvenation of the age structure of the population, supports the economy of Poland and contributes to economic growth. At the same time, it should be noted that for Ukraine, the growing volume of external migration leads to a loss of labor potential, a reduction in consumption within the country, the volume of production of goods and services and, accordingly, an even greater reduction in GDP. It was established that in the conditions of war, a new wave of migration creates a number of challenges for the state and requires the implementation of an effective social and economic policy.
THE ROLE OF FINANCIAL LITERACY IN UKRAINE EUROPEAN INTEGRATION PROCESSES
Authors:   Taras Shevchenko National University of Kyiv, Ukraine, Prykaziuk N.V. , Savitskyi A.K. ,   Taras Shevchenko National University of Kyiv, Ukraine
Published: March 2023

The article defines essence of financial literacy and its role in the Ukraine European integration processes, exposes the European experience and related domestic initiatives in the field of population's financial literacy improvement. It was established that in the process of financial literacy determining, it is important to focus not only on individual financial well-being, but also on positive socio-economic effect for the state. At the same time, the role of financial literacy during the integration processes of the state cannot be underestimated, because financial awareness, financial knowledge, skills, etc. influence people's financial behavior and financial decision-making in new conditions. It was found that the financial literacy issue is very important and critical for Ukraine strategic security. It was proven, based on a comparative analysis of the financial literacy results in Ukraine and foreign countries, that in many European countries financial literacy level needs to be significantly increased, the same as in Ukraine. The experience of implementing initiatives related to the financial literacy problems in the countries that showed the highest indicators according to OECD data (Slovenia, Germany, Austria), as well as Poland and the Czech Republic, was analyzed. It was determined that EU countries pay considerable attention to the initiatives of financial literacy increasing implementation for the population. These issues are dealt with both by the state in the form of ministries of education and regulatory bodies of the financial sphere, and by non-profit organizations, financial and educational institutions. It was argued that with process of Ukraine European integration, the implementation of various financial literacy improvement measures increased, including findings from the successful experience in EU countries. Also, regulators in the financial sphere, adopting the relevant experience from foreign countries, are developing the necessary documents that contribute to level of financial literacy increasing. It was noted, based on the comparison of the Competence Frameworks for the adult population in the EU and Ukraine, that they are quite similar and are based on the original set of basic competencies released by the OECD in 2016, and include digital financial competencies, which have been updated recently. The dynamics of indicators of the level of financial literacy from 2018 to 2021 were positive, and given the fact that the war did not stop the process of creating and implementing new initiatives in this area, there are reasons to expect further growth in the financial awareness of the Ukraine population, which will be an important step on the way integration with the countries of the European Union.
Evaluation of pulsed electromagnetic field therapy to improve muscle strength and functional aspects in the elderly: A pilot study
Authors: Leonardo Patrícia Sardinha , Cardoso Katiele Rodrigues da Silva , Oliveira Silva Bruno , Silva Ruan Oliveira , Silva Helen Cristina de Araújo , França Paulo Ricardo Pinheiro , Souza Beatriz Nascimento , Moreira Isabella Layne Teodoro , Coelho Carly de Faria , Oliveira Cláudia Santos , Filho Alberto Souza de Sá , Lopes-Martins Rodrigo Alvaro Brandão
Published: March 2023

Backgroung: Sarcopenia has been defined as a progressive and generalized disorder of skeletal muscle that involves accelerated loss of muscle mass and function. The prevalence of sarcopenia worldwide is up to 15% in healthy elderly, approximately 76% of acutely hospitalized elderly patients, and up to 69% of patients admitted for post-acute geriatric rehabilitation. The loss of muscle mass results in serious consequences and several chronic diseases and senility, characterized by functional losses, muscle weakness, loss of independence and increased risk of falls and death. Sarcopenia has been defined as a progressive and generalized muscle disorder. Here we investigate the effects of PEMF in muscle strength and functional capabilities of elderly sarcopenic patients. Methods. Fifteen elderly people of both sexes, aged between 65 and 80 years old, classified according to the degree of muscle weakness. The participants were submitted to PEMF therapy in 12 sessions three times a week with the following parameters. In the first two sessions, only submaximal contraction was applied during 30 min with a frequency of 5 Hz at the sport mode of the equipment. In the following 10 sessions we used cycles of Submaximal contractions – frequency of 5 Hz with 5s duration and Supramaximal contractions – frequency of 30 Hz with 5s duration. The intensity of the equipment was adjusted according to the sensitivity of the patient and session duration was 30 min. Results. the TUG functional tests showed a significant reduction in execution time, with an initial average of 40 ± 10s to 22 ± 6s after treatment sessions. The average increase in muscle strength was 27 ± 9% after PEMF treatment. Conclusions. This case series report is the first in the world scientific literature to demonstrate the effectiveness of PEMF (Supramaximus™) therapy in gaining muscle strength and functionality in elderly sarcopenic patients. PEMF therapy, at least for the treatment of sarcopenia in the elderly, can be considered as the definitive evolution of electrical currents, with greater effectiveness and acceptance by the patient.
About Principles of Forming of Legal Mechanism of Citizens Digital Profiling
Authors: Sizemova O. B. , Burova A. Yu.
Published: March 2023

In the article the analysis of stages of development of citizens digital profiling in Russia is carried out. Based on the analysis the authors draw the conclusions on forming of legal mechanism according to principles in reliance on main functions of state. In particular, social function stipulates that categorization of citizens is allowed only for estimation of need in material assistance, supplementary guarantees and favours. Economical function includes execution of financial control and monitoring, stimulation of economical activity of citizens. Law enforcement function is focused on prevention and early recognition of legal wrongs including in digital sphere. Human rights function is realized in actions to stem violations of rights and legitimate interests including electoral. An idea of commercialization of digital profiling, its perception as a product aimed to risk minimization during rendering of financial and other services poses a danger of discrimination of citizens and criminalization of this sphere.
Fracture of a thin-walled spherical vessel affected by internal pressure
Authors:   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Struzhanov V. V. , Chaikin A. E. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences
Published: March 2023

A problem on the fracture of a thin-walled spherical vessel affected by increasing internal pressure is formulated. The material properties both in the stage of hardening and in the stage of softening (prefracture) are described. The mathematics of the catastrophe theory is used to write down the equilibrium equations and to find the critical value of pressure, at which the vessel fails.
The effect of abrasive additives on the tribotechnical properties of lubricants for the wheel–rail system
Authors:   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Koroleva L. F. , Savrai R. A. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Prosviryakov E. Yu. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Kostarev V. A. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Pavlyshko S. V. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Kostarev P. V. ,   B.N. Yeltsin Ural Federal University
Published: March 2023

The paper studies the polishing power of a tribochemically active abrasive material based on a solid solution of iron and aluminum oxides, as well as a solid solution of aluminum and iron oxides modified by zirconium oxide and yttrium oxide additives, and the tribotechnical properties of a lubricant doped with these abrasive materials. The modified Al2O3·Fe2O3·ZrO2·Y2O3 powders prove to have an essentially higher polishing power producing a considerably lower surface roughness than that of the unmodified Al2O3·Fe2O3 powder. By varying the content of the modifying oxides, one can change the tribochemical activity of the abrasive powder and select the best composition depending on the material to be polished. The addition of these abrasive powders is shown to have an essential effect on the tribotechnical properties of the lubricant for the wheel–rail contact. The laboratory testing of the lubricant compositions suggests their effective applicability to the wheel–rail contact.
The study of fuel accumulation in the oil of a gasoline engine with direct fuel injection
Authors: Krasnov Vladimir M. , Terenchenko Alexey S. , Timofeev Dmitriy S. , Shibaev Ivan S. , Stepin Nikita D.
Published: March 2023

BACKGROUND: The worldwide powertrain engineering tendency is reduction of mass and dimension properties of an engine with simultaneous increase of its specific power and power-to-weight ratio. It can be achieved with compression ratio increase, engine cycle improvement, implementation of supercharging system and direct fuel injection. With the direct injection systems implementation, the issue of fuel accumulation in oil became relevant.
AIMS: The article addresses general issues related to fuel accumulation in the motor oil.
METHODS: Analysis of the published data addressing this issue.
RESULTS: The reasons of fuel entry into oil were formulated, the possible acceptable limits of fuel concentration in oil were defined, and the data of vehicle fleet observation performed by specialists during several years was given.
CONCLUSIONS: There is rather considerable range of opinions and recommendations regarding acceptable fuel concentration in oil. Therefore, it may be concluded that the value of fuel concentration in itself makes little difference, and, in order to define the maximal acceptable level of fuel concentration in oil, it is reasonable to carry out studies of determination acceptable limits of particular motor oil properties, primarily viscosity.
Development and research of the control system of the electric drive of panoramic windscreen wipers
Authors: Polyuschenkov Igor S.
Published: March 2023

BACKGROUND: The issue of coordinated control of vehicles windscreen wipers, not linked to each other with mechanical joints, is related to aiming to make the equipment more compact. Modern microprocessor controlling are helpful to solve this issue with use of electric drive as well as problems of logical control and interaction with high-level controlling equipment.
AIMS: The comprehensive solution of the issue of coordinated control of movement of panoramic windscreen wipers without mechanical links as well as the solution of secondary problems of control with use of tools of electric drive considering various factors.
METHODS: The algorithm of windscreen wipers movement coordination in nontracking system of automatic stabilization of electric motors rotation velocities with positioning in trajectories control points. Among the factors, necessary to consider in development, there are design of mechanism of windscreen wipers, the characteristic of mechanical load on them, type and location of sensors, required dynamics and accuracy of coordinates adjustment, behavior of electromagnetic processes in power converter and restriction of computing capabilities of a microcontroller.
RESULTS: The electric drive ensures visually balanced coordinated movement of windscreen wipers, which is resistant to load change caused by the condition of the windscreen as well as torques of gravity force acting on the windscreen wipers. The logical control based on discrete switches ensures selection of the movement mode, whereas the connection through digital circuits ensures data exchange with the controlling equipment. Technical solutions ensuring simple tuning of the electric drive are implemented.
CONCLUSIONS: The given solution of issues of coordination of windscreen wipers movement, automatic adjustment of coordinates considering dynamics of movement control, logical control and coupling with the high-level controlling equipment has practical value for development of various control systems.
Design of equi-strength rotating disk
Authors: Lyamina Elena A. , Novozhilova Olga V.
Published: March 2023

Background: Rotating disks, such as flywheels, are an important machine part of engines, which requires the development of the theoretical methods of their analysis and design.
Aim: Determination of the profile of equi-strength rotating disks.
Materials and Methods: Methods of the mathematical theory of elasticity and plasticity
Results: Methodology for determining the profile of equi-strength rotating disks obeying the von Mises yield criterion and its application
Conclusion: The methodology developed can be used to design equi-strength rotating disks subject to various combinations of internal and external pressures. It can be extended to more general yield criteria.
The development of hepatocellular carcinoma during long-term treatment for recurrent non-small cell lung cancer: a case report
Authors: Na Seong Kyun , Kang Seong Hee
Published: March 2023

Multiple primary malignancies (MPMs) are defined as the presence of two or more malignancies in different organs, without a subordinate relationship. Although rarely reported, hepatocellular carcinoma (HCC) occasionally presents with simultaneous or metachronous primary malignancies in other organs. In this report, we describe a patient with lung adenocarcinoma and lymph node and bone metastases, treated with five chemotherapeutic regimens for 24 months. Changing the chemotherapy regimen based on the suspicion of metastasis of a new liver mass did not lead to improvements. This prompted a liver biopsy and a revised diagnosis of HCC. Sixth-line treatment with the concurrent use of cisplatin-paclitaxel for lung cancer and sorafenib for HCC, stabilized the disease. The concurrent treatment was not tolerated and was discontinued owing to adverse events. Considering our findings, treatment with increased efficacy and lower toxicity for MPMs is warranted.
2015-2021 Yılları Arasında Yapılan Okul Yaşam Kalitesine Yönelik Lisansüstü Tezlerin Analizi
Authors: ÇOBAN Canan , ELLEZ Ahmet Murat
Published: March 2023

Araştırmada, 2015-2021 yılları arasında Okul Yaşam Kalitesine yönelik Türkiye’de yapılmış lisansüstü tezlerin belirli temalar altında incelenmesi sonucunda genel eğiliminin ortaya konulması amaçlanmıştır. Verilerin toplanmasında nitel yöntemin “doküman analizi” tekniği kullanılmıştır. Araştırmanın örneklemini, 2015-2021 yıllarında Okul Yaşam Kalitesi ile ilgili yayımlanmış 20 yüksek lisans tezi oluşturmaktadır. Verilerin analizi içerik analizine göre yapılmıştır. Sonuç olarak “yüksek lisans” türünde, “2019” yılında, “Okula Aidiyet Duygusu” konusunda, “Ankara” ilinde, “Gazi, Çukurova ve Çanakkale Onsekiz Mart Üniversite”lerinde, “Dr. Öğr. Üyesi” danışmanlığında ve “Eğitim Bilimleri Anabilim Dalı”nda daha fazla çalışma yapıldığı görülmüştür. Tezlerde en çok “ilişkisel tarama deseni” ve “bağımsız gruplar t-testi” ile “tek yönlü varyans analizi” kullanılmıştır. Örneklemin daha çok “ortaokul” öğrencilerinden oluştuğu ve en fazla “Okul Yaşam Kalitesi (Sarı, 2007)” ölçeğinin tercih edildiği görülmüştür. Sonuçlar, bulgular ışığında yorumlanarak tartışılmış ileride yapılacak olan çalışmalar için önerilerde bulunulmuştur.
A río revuelto, ganancia de conservadores: un análisis de la despoblación y comportamiento electoral en el corazón de la España vacía
Authors: Sánchez-García Álvaro , Rodon Toni
Published: March 2023

En los últimos años, los partidos políticos se han lanzado a por el voto de la llamada España vacía. Una parte de España, donde la despoblación reciente ha sido acusada, reparte como mínimo 79 escaños en el Congreso de los Diputados y se ha convertido en un gran activo electoral. ¿Pero cuál es la relación entre la despoblación y el voto? ¿La pérdida de población ha conllevado que algunos partidos hayan ganado o perdido votos? ¿O la abstención ha subido/bajado? Utilizando una nueva base de datos que tiene en cuenta los patrones de voto y las dinámicas de despoblación entre 2008 y 2019, este artículo pretende contribuir a la literatura existente analizando ambos fenómenos y dando respuesta a una relación que todavía no conocemos. Para ello utilizamos las cinco comunidades autónomas que según Sergio del Molino (2016) integran la España vacía. Los análisis estadísticos indican que la despoblación está relacionada con un aumento significativo de la movilización y del voto a partidos conservadores, un efecto fundamentalmente debido a cambios composicionales demográficos, esto es, a que los jóvenes, más de izquierdas de media, son los más propensos a irse a vivir a zonas urbanas.
Community Policing in Rural Parts of Slovenia in the time of COVID-19
Authors: Eman Katja , Bulovec Tinkara
Published: March 2023

The focus of community policing is directly on the local community and encompasses various crime reduction and crime preventive initiatives developed and initiated through the interaction of police and local citizens. The history of the development of community policing in Slovenia has shown that, for a thriving community policing approach, police officers had to work actively and hard for many years and cooperate with local leaders and citizens from both rural and urban local communities in various ways to make positive progress. The COVID-19 pandemic has significantly changed police activities and interfered with community policing throughout Slovenia, especially in its rural regions. This article reviews the organization of community policing in eight rural Slovene police directorates. Interviews were conducted with community policing authorities at regional and local levels in all eight police directorates. We found that community policing changed significantly during the pandemic (e.g. use of Facebook, Zoom) and decreased, because police officers were occupied with performing other tasks (e.g. security measures related to the epidemiological situation). The most disadvantaged communities were located in rural areas, where contacts with citizens were almost completely cut off. Unfortunately, the most significant obstacle to community policing practices is long-term staffing shortages of the Slovenian police.
Norwegian Rural Vigilantism during COVID-19: Self-Protection against a Perceived Urban Threat
Authors: Vestad Maja
Published: March 2023

When private citizens mobilise to protect their local community against threats, the rationale is that the local government is unable or unwilling to do so, due to legal restrictions, a lack of organisational resources and capacity – or indifference and discrimination. While these practises are commonly theorised as vigilantism, this conceptual approach draws in large part on studies of urban parts of the United States, Latin/South America, and the Commonwealth countries. This corresponds to a parallel knowledge gap in rural criminology, where there is little knowledge of so-called peripheral areas in the global north as well as a dearth of theoretical conceptualisation about rural vigilantism, and few studies cover areas outside the Anglo-American context. Drawing on qualitative fieldwork in 2020, this paper contributes to knowledge of vigilantism in the Nordics by providing a study on how Norwegian citizens mobilised to protect local communities from an urban pandemic threat, constituting a new form of rural vigilantism.
In memoriam: Professor Rick Ruddell
Authors: Donnermeyer Joseph F.
Published: March 2023

No abstract available.
Editors' Introduction to Vol. 7, Issue 2
Authors: Donnermeyer Joseph F. , Harkness Alistair
Published: March 2023

No abstract available.
Introduction to Volume 7, Issue 2 (Special Issue)
Authors: Peterson Jessica Rene , Mulrooney Kyle
Published: March 2023

No abstract available.
How Did European Universities React to COVID-19? Exemplary Results from Germany, Italy and Sweden
Authors: Annen Silvia , Sailer Sabrina
Published: March 2023

In times of a global crisis with limited social contacts due to social distancing, alternative (digital) communication formats offer a way to maintain sharing information as well as interacting socially. Especially with universities’ physical closing, there is a demand especially for students to obtain information digitally. Therefore, the importance of adequate communication via digital channels arises. The pandemic serves as an amplifier towards informational channeling. However, universities vary greatly regarding their process of information sharing. To address these differences, this paper analyzes how European universities reacted to the disruption caused by the COVID-19 pandemic and how they dealt with communication towards students. The focus points towards the question on how universities strategies aim to supplement, substitute or reconfigure social interaction. Besides an overview of the general meaning of communication for universities, the paper presents general and country-specific results on the communication of universities during the pandemic and provides a comparative overview of alternative strategies.
Educational Technology in English Language Teaching in China: A Review of Policy, Practice and Problem
Authors: Cao Yilin , Li Shangrong
Published: March 2023

The past four decades have seen English Language Teaching (ELT) in China some major and historical transformations in terms of instructional approaches and practice under the influence of Educational Technology (ET). In order to popularize ELT and improve its quality, ET has been increasingly widely employed in English classrooms. This paper presents an overview of the application and evolution of ET in ELT at the secondary level in China, which was based on an analysis of the key national policies and a review of thirteen editions of English syllabi since the late 1970s. The historical evolution of ET in China’s secondary ELT can be divided into three stages, with unique characteristics at each stage in revolutionizing and modernizing the way of teaching and learning. This paper also sketches the influence of ET on China’s ELT, including the major benefits that the technology has brought to ELT and some challenges both teachers and students are confronted with.
Testing Virtual Reality for Eliminating Japanese University Students' English-Speaking Anxiety: Cases of International Conference and Restaurant
Authors: Yamanaka Tsukasa , Miyazaki Yasushi , Yamazaki Atsuko K. , Murakami Kayoko H. , Kimura Syuhei , Yamashita Miho , Kondo Yukie
Published: March 2023

Reflecting COVID-19 outbreak that prevents educators from making close contacts with students, digitalization of language teaching is gradually getting educators’ attention. With respect to this situation, this research conducted an experiment of using Virtual Reality (VR) materials for 69 English as a STEM-major Foreign Language (EFL) learners at a Japanese university. Polishing usability of Virtual Reality (VR) English language education materials could improve the learners’ performance of English language use. However, careless use of VR materials could fail, unless the educators consider its technical and pedagogical limitations. The experiment used pairs of Virtual reality headset with two scenarios (international conference and restaurant). From pre-post experiment surveys on speaking anxiety scale, students with higher Test of English for International Communication (TOEIC) listening scores showed more anxiety on speaking. Also, post-experiment open-ended questionnaires suggested that usability of VR materials should be improved.
Análisis de Políticas Públicas para la adopción de Energías Renovables No Convencionales en Colombia
Authors: Reyes Gil Rosa Eugenia , Turriago Hoyos Álvaro , Cárdenas Piñeros Mauricio , Danna Buitrago Jenny Paola
Published: March 2023

Se espera que la reactivación de la actividad industrial para recuperar la economía post-Covid-19, origine un incremento en los gases de efecto invernadero como consecuencia del uso de recursos naturales no renovables como carbón, petróleo y gas natural. En Colombia, sin embargo, la matriz energética ha mantenido una proporción de capacidad instalada relativamente constante favoreciéndose la energía producida a partir de fuentes hídricas (68% de energía proveniente de hidroeléctricas, 31% de termoeléctricas y 1% de energía eólica y solar). Considerando el potencial del país para el desarrollo de las energías renovables no convencionales, esta investigación busca revisar las políticas públicas vigentes para la adopción y promoción de estas formas de energía como parte de la transición energética hacia fuentes de energía que minimicen aún más los aportes de Colombia al cambio climático. Se realizó una investigación documental y descriptiva fundamentada en la información disponible en fuentes académicas e institucionales reseñada entre el año 2014 y el 2022. Los resultados indican que Colombia tiene un marco legal normativo importante que inicia con la Ley 1715 del año 2014, evolucionando hasta el presente con los aportes de las normativas generadas por la Comisión de Regulación de Energía y Gas (CREG) y la Unidad de Planeación Minero Energética (UPME), entre otras. A partir del año 2019 se han generado decretos o leyes para mejorar los incentivos y facilitar la radicación de proyectos de generación de fuentes de energías renovables no convencionales.