bluuebunny/crossref_metadata_2025 huggingface dataset:
Social Media Usage Among University Students of Mathematics Education in Zambia: A Quantitative Analysis Approach
Authors: Marbán José M. , Mulenga Eddie M.
Published: July 2024

Social media in most Zambian schools, colleges and universities are not yet a sustainable solution for the traditional problems of education. Nonetheless, they provide opportunities that are changing the way we learn especially during this deadly pandemic Omicron variant. Hence,
this study sought to address a single research question: How do student teachers currently use social media, both for personal use and for teaching/learning mathematics? The study was aimed at exploring the impact of and the role social media can play in mathematics education via social networking
among university students. This study is projected to stimulate further discussions on the way to embrace digital platforms in mathematics education whilst simultaneously maximizing their benefits. The study utilized quantitative-methods techniques which aims at analyzing the various strategies
of the integration of social media technologies into the teaching and learning processes of mathematics based on the Activity Theory (AT) and the Technology Acceptance Model (TAM) as the theoretical frameworks of the study. Cluster analysis techniques were performed over the data collected
from 102 participants by completing quantitative survey questionnaires. Results highlights that cluster 1 recorded the highest score displaying that majority of the students agree that social media platforms have a place in their personal, academic and professional lives such as in their mathematics
teaching subject. Results further disclose that year, gender and age have a statistically significant impact in clustering students in terms of social media usage in mathematics education. Implications are discussed.
Sports Tournament Design as a Source of Economic Impact (Through the Example of Russian Premier League)
Authors: Solntsev Ilya V. ,   Financial University under the Government of the Russian Federation, Kurov Andrey A. ,   B1 Group of Companies
Published: July 2024

In today's restricted environment, sport continues to face a lack of funding and to be perceived as an industry that can survive without support. Meanwhile, numerous studies have proven that sport is not about significant investments only, but also creates an economic impact. The aim of this work is to consider such a specific driver of economic impact as tournament design and evaluate the corresponding impact through the example of the Russian Premier League (RPL). The research hypothesis states that changing the design of the RPL tournament will lead to an increase in the total revenue of participating teams, in consumption in the host cities and a reduction in greenhouse gas emissions, which together will lay the foundation for an economic impact at the country level and for individual regions. The paper examines three reform scenarios, which differ in the assumptions made. The authors have developed a calculation model that quantifies the economic impact of these reforms. The main triggers are the attendance at RPL matches and its derivatives (the number of away fans, the distance traveled by away fans), as well as monetary metrics: ticket & travel costs, carbon unit costs. The impact is calculated as the difference between the results achieved in the current tournament design and in potential scenarios. The study showed that the current RPL design has significant potential for economic impact. Thus, the implementation of the Optimum scenario, which does not require additional calendar reserves, will create a positive economic impact in the amount of 479 million rubles. With additional calendar opportunities and implementing the “Maximum” scenario, the effect will be 932 million rubles. This study may be useful for managers of sports competitions, heads of regional and municipal authorities, as well as sports leagues and federations.
PUBLIC INVESTMENT, ECONOMIC GROWTH AND EFFICIENCY
Authors: Danaj Eni , Reçi Lorela
Published: July 2024

The definition of public investment is not as clear and precise as it may seem. Often, public investments are described as public expenditures that contribute to the stock of physical capital, encompassing tangible assets such as properties (excluding land), buildings and other structures (e.g., roads, airports, hospitals, schools, telecommunication structures, government buildings, bridges, etc.), machinery, transportation equipment, and intangible assets like intellectual property (OECD, 2016). Therefore, public investment is the allocation of funds that result in the growth of the aforementioned items. Public investment can be viewed as a political tool in the hands of a government, capable of altering or determining the course that a country's economy and other aspects of life will take. Governments utilize public investments to respond to a variety of challenges over time, addressing global issues such as climate change and local problems like periods of economic decline, diverse demographic trends, rapid urbanization, or adaptation to new technologies. As emphasized by the European Investment Bank, "properly functioning infrastructure networks are the backbone of flourishing economies" (European Investment Bank, 2010). Public investments are integral for economic and social prosperity, contributing to the national capital stock by allocating resources to essential basic infrastructure, education, research and development, thereby leading to increased productivity and improved living standards. The aim of this article is to analyze the role of public investments in the economy in addressing contemporary challenges.
Rises on pitch accents and edge tones affect serial recall performance at item and domain levels
Authors: Grice Martine , Savino Michelina , Schumacher Petra B. , Röhr Christine Tanja , Ellison T. Mark
Published: July 2024

This paper investigates the effect of intonational rises on attention towards, and ultimately, recall of, medial elements in nine-digit lists in German. Non-final triplets (positions 1, 2, 3 and 4, 5, 6) were produced with either a rise or a fall on digits in positions 3 and 6. Rises led to significantly improved recall over falls. Crucially, the nature and shape of the rise determined the position in which better recall was found. A pitch accent rise on specific digits (at positions 3 and 6) had a local effect on recall of those digits. A boundary rise, marking the end of a triplet, not only boosted recall of the specific digits but also boosted recall of the whole triplet. These results support a prosodic hierarchy in which edge tones areassociated with a whole domain (such as an intermediate phrase), rather than simply being placed at its edge, in accounting for the effect on recall of the digits within that domain.
İbnü’l-Enbâri’nin Vakf ve İbtidâ İlmindeki Tercih Gerekçelerinin Analizi
Authors: Eıd Israa Mahmood Eıd
Published: July 2024

Vakf ve ibtida ilmi Kur’an ilimlerinden biridir. Kur’an-ı Kerim’in anlaşılması buna bağlı olduğundan onu okuyan ve okutan herkes için önemli bir ilimdir. İslami ilimler literatüründe bu değerli ilme dair telif edilmiş klasik ve modern birçok eser bulunmaktadır. Muhammed b. el-Kâsım b. Muhammed el-Enbârî’nin (ö. 328/ 940) Kitâbü Îzâhi’l-vakf ve’l-ibtidâ isimli eseri bu literatürün ilk örneklerindendir. Kitâbü Îzâhi’l-vakf ve’l-ibtidâ, vakf ve ibtida ilmindeki ilk kapsamlı eser sayılır ve yaptığı şerhler ve gerekçelendirmelerle öne çıkar. Bu araştırma İbnü’l Enbârî’nin söz konusu kitabındaki vakf ve ibtidâ ilmine dair kullandığı ıstılahları incelemeyi amaçlamaktadır. Yine bu çalışmada İbnü’l Enbârî’nin vakflar arasında tercih yaparken kullandığı, “daha iyi”, “daha güzel”, “bunu tercih ederim”, “tercihimiz budur”, “vakf yapılması güzeldir” gibi lafızlar da ele alınacaktır. Araştırmada, İbnü’l Enbârî’nin bu tercihlerini dayandırdığı gerekçeler de tespit edilmeye çalışılmış ve bu gerekçelerin en önemlilerinin şunlar olduğu ortaya çıkmıştır: Mütevatir ve şâz kıraatlere, tefsire, İmam Mushafına, hadis-i şeriflere, gramere, Arap dilinin aslına ve Kureyş lehçesine uygunluk. Bunun yanında çalışma neticesinde İbnü’l Enbârî’nin, Ebû Hâtim es-Sicistânî’nin (ö. 248/ 862) vakflara dair tercihlerinin çoğuna karşı çıktığı, bu karşı çıkışı gerekçelendirdiği ve en-Nehhâs (ö. 338/ 949) ile Dânî’nin (ö. 444/ 1053) çoğunlukla İbnü’l-Enbârî’nin tercihlerine katıldığı görülmüştür.
Effects of emotional intelligence by university students majoring in hotel, foodservice, and tourism on creativity and problem solving abilities
Authors: Kim Byeong-Yong ,   The Tourism Sciences Society Of Korea
Published: July 2024

This study aimed to suggest implications for enhancing creativity and problem-solving abilities by examining how the emotional intelligence of university students majoring in hotel, foodservice, and tourism influences problem-solving abilities through creativity. Based on previous research, emotional intelligence was divided into four sub-factors: self-emotion appraisal, others' emotion appraisal, use of emotion, and regulation of emotion. The relationships between these sub-factors, creativity, and problem-solving abilities were explored. A convenience sampling method was used to select 285 university students majoring in hotel, foodservice, and tourism from three universities located in Gyeonggi-do and Chungcheongnam-do. A questionnaire created using Google Forms was distributed via mobile phone, and 250 responses were collected. The collected data were analyzed using exploratory factor analysis and structural equation modeling with SPSS 29.0 and AMOS 23.0 programs. The results showed that all four sub-factors of emotional intelligence had significant effects on creativity. Additionally, it was found that creativity had a significant effect on problem-solving abilities. This study is theoretically significant in that it expands the scope of previous research by empirically verifying the relationships between emotional intelligence, creativity, and problem-solving abilities. Practically, it suggests that universities should provide leadership education, creative activities, psychological counseling, club activities, and interpersonal skill improvement programs to promote the understanding of emotions in both oneself and others. Furthermore, it indicates that creative teaching methods and conducive teaching environments are necessary to enhance the creativity of university students.
ANALYSIS AND CREATION OF NEW ENERGY-SAVING DESIGNS OF INSTALLATIONS FOR ENVIRONMENTALLY COMBUSTION OF LIQUID FUEL IN OIL FACTORY FURNACES USING THE HEAT OF OUTLET COMBUSTION PRODUCTS
Authors: Katin V.D. , Zhuravlev A.A.
Published: July 2024

The article analyzes the installations and methods used at oil refineries for recycling the heat of exhaust flue gases in order to increase the efficiency of fuel use in tube furnaces and accompanying reduction in pollutant emission into the air basin. Recommendations on rational type selection of waste heaters for furnace units of oil refining industries are given.The authors present fundamentally new installations for burning liquid fuel in the form of oil-water emulsions using the heat recovery of emitted combustion products of furnace installations for heating the oil-water emulsion and its further environmentally friendly combustion, i.e. reduction of harmful emissions. The proposedoriginal installations differ from well-known analogues in the novelty of their design, a fairly high environmental effect and relatively low material costs.
TECHNOLOGY OF WATER TREATMENT FROM OIL PRODUCTS USING MAGNETIC LIQUIDS FROM INDUSTRIAL WASTE
Authors: Gennadyeva A.M. , Kalaeva S.Z. , Filippova O.P. , Petropavlovskaya V.B. , Kuznetsova G.M.
Published: July 2024

This article explores new perspectives on the use of magnetic fluids for efficient water treatment of petroleum products. A review of existing technologies and their limitations is provided, emphasizing the need for new approaches. The use of magnetic fluids that are highly selective to petroleum products is investigated. Experimental results show that the modified magnetic fluids effectively remove petroleum products from water, providing high quality treatment. The study also examines the durability and cost-effectiveness of the proposed approach, suggesting its practical application in water treatment plants. The paper provides a valuable contribution to the water treatment field, opening up new opportunities for effective removal of petroleum products and protection of water resources. Aims of the study are to reduce the concentration of petroleum products in wastewater; to develop an effective technology for wastewater treatment from petroleum products using magnetic fluid. Objectives of the work are to study the composition of iron-containing waste; to consider the technology of wastewater treatment from petroleum products; to study the parameters of wastewater treatment from petroleum products.The objects of the study are industrial iron-containing waste, magnetite obtained from waste, as well as magnetic liquid synthesized on the basis of magnetite and wastewater.
TECHNOLOGICAL COMPLICATIONS (FORMATION DAMAGE) DURING CO2 INJECTION FOR ENHANCED OIL RECOVERY. Part 1. GEOCHEMICAL PROCESSES INVOLVING ROCK MINERALS, CHANGE OF PETROPHYSICAL AND GEOMECHANICAL ROCK PROPERTIES
Authors: Galimov A.A. , Volkov M.G. , Voloshin A.I. , Dokichev V.A.
Published: July 2024

Decrease in permeability, porosity, change in wettability of oil-bearing formations during field development are defined by a general term - formation damage, which occur at various stages of field development, including drilling, production, application of enhanced oil recovery methods, well stimulation technologies with acid compositions, hydraulic fracturing and well workover. Reservoir damage leads to a reduction in the oil and gas content of reservoirs and in the economic efficiency of operation. In this regard, it is important to understand and prevent formation damage based on experimental and analytical methods, the applicationof which will minimize damage to the oil and gas bearing reservoir. The review considers anthropogenic processes that cause damage to oil and gas reservoir when CO2 is injected by various methods to enhance oil recovery. The processes of interaction of CO2 with formation rock are considered in detail. The main geochemical transformations of rock minerals are given, which lead to changes in the structure of pore space, permeability and porosity, decrease of geomechanical properties. Secondary sedimentation processes and risks of rock particles removal into the borehole are discussed.
Immunofluorescence for adherent cells v1
Authors: C Kokotos Alexandros , Ryan Tim
Published: July 2024

This protocol describes a method to perform immunostaining for adherent cells.
Human Ganglia and Spinal Cord Tissue Procurement from Organ Donors and Tissue Quality Assessment v1
Authors: Shiers Stephanie , Saad Yousuf Muhammad , Mwirigi Juliet , Cervantes Anna , Price Theodore
Published: July 2024

Purpose Describe the human nervous tissue removal, preservation, storage, and transportation procedures during tissue procurement from organ donors. Responsibility The Human Tissue Procurement and Processing core at the University of Texas at Dallas is responsible for maintaining this protocol, ensuring it is updated and controlled, and ensuring that users receive proper training prior to its implementation. Definitions and Abbreviations aCSF = artificial cerebral spinal fluid BD = Brain Dead COD = Cause of Death CTOD = Called Time of Death DCD = Donation upon cardiac death Donor ID = UNOS identification number assigned to each donor; provided by the donor network DRG = dorsal root ganglion HSG = human sensory ganglia NMDG = N-Methyl-D-glucamine OCT = optimal cutting temperature OPO = organ procurement organization ORC = operating room coordinator OR = operating room PPE = personal protective equipment SCG = sympathetic chain ganglion UTD = The University of Texas at Dallas Tissue Recovery Sites OPO headquarters Local hospitals Tissue Recovery Teams OPO Surgical Staff UTD Recovery Teams: 2 members (graduate students and post-doctoral scientists) per team
Psychometry of Latent Characteristics: Tools, Problems of Rank Information Processing, Solutions
Authors: Mitikhin V.G,
Published: July 2024

The paper examines the problems of correctness and adequacy of the use of psychometric tools in psychosocial research and applications. The main attention is paid to the problem of correct processing of rank information, which is non-numeric information that does not allow the use of classical mathematical operations, starting with the addition operation. The approach of forming the results of processing expert, ranked information in the scale of relations based on the Analytic Hierarchy Process (AHP), which includes a measurement apparatus and decision-making algorithms, is presented. An example is given that simulates the situation of an expert council and demonstrates unacceptable contradictions that arise with the "numerical" approach to processing rank information. The algorithms of the AHP normative approach are presented, which allow obtaining numerical, personalized assessments of psychosocial characteristics. The basic concepts of the Rasch Measurement (RM) for comparing the capabilities of AHP and RM in psychosocial applications are described. Some critical remarks about the methods of psychometry are considered. It is shown that the origins of the criticisms are associated with a superficial understanding of the basic concepts of psychometric measurements and the scope of their applications, as well as with elementary errors when using the apparatus of psychometric instruments.
Advancements in 5G Technology: Enhancing Connectivity and Performance in Communication Engineering
Authors: Patel Bhavik , Yarlagadda Vamsi Krishna , Dhameliya Niravkumar , Mullangi Kishore , Vennapusa Sai Charan Reddy
Published: July 2024

The present research delves into how 5G technology developments can improve communication engineering performance and connectivity. The primary goals are to assess 5G's technical viability, performance potential, and real-world obstacles while offering recommendations for best practices in implementation and use. The study synthesizes current literature, research papers, and industry reports using a secondary data-based review technique to examine the technological underpinnings, performance improvements, real-world applications, and future directions of 5G. According to key findings, 5G dramatically improves data rates, lowers latency, and allows for ample device connectivity, opening up new possibilities for revolutionary applications in industries like industrial automation, smart cities, and healthcare. Strategic policy interventions are necessary to address cybersecurity risks, coverage restrictions, interoperability issues, and expensive infrastructure costs. To overcome these issues, provide fair access, and optimize the socioeconomic benefits of 5G, policymakers are encouraged to prioritize spectrum allocation, simplify regulatory frameworks, and provide incentives for investments. Future studies and developments in Edge Computing and AI-driven network optimization are emphasized as essential to improving 5G networks even more. The potential of 5G to alter communication engineering and accelerate inclusive digital transformation is shown by this thorough examination.
Exploring customer preferences to drive successful food supplement placement in Croatia
Authors: Martinović Maja , Čolak Ivana , Barac Zoran
Published: July 2024

This study examines the preferences and influences on the decisions of Croatiancustomers when purchasing food supplements. A survey of 312 customers of foodsupplements in Croatia found that distribution channels and pharmaciessignificantly influence the purchasing process, attributed to the value added bypharmacists. The most important aspects that customers consider are the type andamount of active and auxiliary ingredients (excipients) of the product. Brand-conscious customers consider the manufacturer and the product’s country of originimportant. The greatest influence is the recommendation of family members orfriends. People prefer to choose a food supplement that offers value for money, butthose without previous experience with the product are more price sensitive andbuy on sales promotions such as discounts and packaging at a promotional price.Based on the results of this study, manufacturers and distributors of foodsupplements can create strategies in which, through co-creation with consumers,they achieve a competitive edge, encourage loyalty, and improve business results.
Macroeconomic, institutional and financial determinants of current account deficit in North
Macedonia
Authors: Dauti Bardhyl
Published: July 2024

The role of current account balances in macroeconomic policy is progressivelyhigh, especially in transition countries. Using yearly level data for a 1994-2022period, based on co-integration analysis, this research empirically investigates themacroeconomic, institutional, and financial determinants of the current accountdeficit in North Macedonia. The results of the study reveal that a country’s currentaccount deficit is significantly affected by domestic demand factors like realeffective exchange rate, output gap, and trade openness, the fiscal-related factor ofgross debt position, the institutional-related factor of economic freedom, legal andproperty rights, regulatory index, control of corruption, government effectiveness,as well as financial development captured by money supply. The study also findsout that the country has recorded more deficit in the current account thanpotentially expected during two time periods, the pre-financial crisis period 2001-2008 and during the COVID-19 crisis period 2019-2022.
The performance of Croatian hotel companies – DEA window and Malmquist productivity index approach
Authors: Arbula Blecich Andrea
Published: July 2024

The hospitality industry operates in a dynamic and competitive environment whereefficiency and productivity are crucial for sustainable success. The main goal ofthis paper is to assess the dynamic changes in the efficiency and productivity oflarge and very large Croatian hotel companies and to investigate whether theirlocation influences these factors. It also aims to determine how resilient thecompanies are to macroeconomic shocks and to identify the causes of inefficiencyand productivity changes separately for each location. The analysis is conductedfor 70 large and very large hotel companies in total and separately for those incoastal and the continental Croatia from 2017 to 2022 using the Window DataEnvelopment Analysis and the Malmquist Productivity Index. The results show aslight decrease in relative efficiency in 2020 due to the impact of the COVID-19pandemic. The main cause of inefficiency for coastal hotel companies throughoutthe period is management performance and other exogenous factors. Conversely,the main cause of inefficiency for continental hotel companies shifted from non-optimal production size to management and other exogenous factors after 2020.Productivity declined between 2019 and 2020 due to the decline in technologicalchange for companies in both locations. Prior to 2020, coastal and continentalhotel companies followed a similar trend. While coastal hotels recovered faster in2021, continental hotels recovered more steadily and achieved higher productivityin 2022. This research provides valuable insights for hotel managers andacademics seeking to navigate the ever-changing field of hotel management.
“So, You’re Saying There’s a Chance …”
Authors: Chard Chris , Wigfield Daniel
Published: July 2024

Competitive balance in sport is a desirable state for leagues to aspire to attain. Indeed, uncertainty of outcomes (Kringstad & Girginov, 2018) have been noted to be desirous. At the highest levels of professional sport, measures to promote competitive balance (e.g., amateur drafts, revenue sharing) are commonplace. It has been noted before (i.e., Wigfield & Chard, 2018) that competitive balance is similarly sought after in competitive youth sport settings. Here, the current study was completed to assess the competitive balance in various associations competing in Ontario’s boys’ representative minor hockey system. Results from the provincial championships since the 2005-06 season were analyzed for age groups ranging from U11 to U20 and across all competition levels (i.e., A, AA, AAA) by conducting a chi-square test of independence. Findings indicate that the Greater Toronto Hockey League (GTHL) dominates Ontario rep hockey across all age groups and competition levels—with few exceptions. This article offers an innovative solution to roster construction that Ontario minor hockey associations can implement to combat the GTHL’s dominance.
Clinical Sports physiotherapy practice in India- it’s time to upgrade with technology and evidence based practice
Authors: Alagappan  , Jeyakumar  , Rajalaxmi
Published: July 2024

In India, the job of a sports physiotherapist is very demanding because, due to the increased number of injuries in all sports, it is claimed that athletes require complete care to recover and prevent injuries. At present, the general population in India, looking to lead a healthy life, also participates in recreational sports activities. So sports physiotherapy is also recommended for the general population.

After finishing their education, physiotherapists play a crucial and essential role in the recovery of sports players. Sports physiotherapists' main duties include handling on-field injuries, preventing injuries, treating injuries in the outpatient setting, helping patients recover from arthroscopic surgery, and travelling with sports teams or individuals for short or infrequently longer contract periods. This article summarize the suggestions and solutions to improve the standards of sports physiotherapy practice in india.
Estilos Cognitivos e Estratégias de Aprendizagem dos Alunos de um Curso de Licenciatura em Computação na Modalidade de Educação a Distância
Authors: Silveira Sidnei Renato , Delepiane de Vit Antônio Rodrigo , Cunha Guilherme Bernardino da , Bigolin Nara Martini , Ribeiro Vinicius Gadis
Published: July 2024

Este artigo apresenta uma discussão acerca dos estilos cognitivos e estratégias de aprendizagem, de um grupo de alunos de um Curso de Licenciatura em Computação, ministrado na modalidade de Educação a Distância. Na disciplina de Didática Geral, os alunos responderam a um instrumento, que estabelece os estilos cognitivos dominantes de cada estudante. Além disso, cada aluno, por meio de um fórum de discussão, apresentou suas estratégias de aprendizagem, especialmente no contexto da EaD. Participaram do fórum, dez dos vinte e sete alunos matriculados na disciplina. Dos dez alunos participantes, quatro ficaram compreendidos no estilo reflexivo e, esse mesmo número, no estilo divergente. Dois alunos ficaram compreendidos no estilo convergente e um aluno teve o estilo cognitivo classificado como holista, bem como um aluno como serialista. A soma de alunos aqui é maior do que os dez participantes, já que um aluno pode ter mais do que um estilo dominante. A metodologia de pesquisa adotada foi qualitativa, com base na análise de conteúdo. Como o curso é ministrado na modalidade de EaD, com atividades em sua maioria assíncronas, os alunos precisam estabelecer uma rotina de estudos, para que possam acompanhar as aulas e atividades. Entre as estratégias de estudo, a maioria dos alunos destacou as videoaulas como uma forma de aprofundar o conhecimento. Além disso, os alunos destacaram a importância de buscar fontes de estudo adicionais, bem como aliar teoria e prática. 
 
Palavras-chave: Estilos cognitivos. Estratégias de aprendizagem. Educação a distância.
Can gestures communicate the time of described events? The perception of temporal gestures executed by a companion robot
Authors: Kotov Artemiy A. ,   Kurchatov Institute National Research Center, Zinina Anna A. , Arinkin Nikita A. , Berkuta Daria V. ,   Russian State University for the Humanities,   Moscow State Linguistic University,   Kurchatov Institute National Research Center,   Russian State University for the Humanities,   Moscow State Linguistic University,   Kurchatov Institute National Research Center,   Russian State University for the Humanities,   Moscow State Linguistic University
Published: July 2024

In this paper, we investigate whether temporal gestures indicating different events in time can convey information about the relative timing of these events. We depart from the assertion, that in many cultures time is metaphorically represented as an axis, oriented from left to right, i.e. recent or future events have rightmost position, as compared to the events of the past. We test the hypothesis that temporal gestures, referring to the events on the axis, may communicate to the addressee the temporal reference of the described events. The hypothesis was tested in an experiment (N = 22 people, average age 21.6 years, 17 female) where two companion robots told stories, accompanied by left-oriented, symmetric or right oriented gestures. Each story included events from two different cases – recent and past, and each statement was accompanied by (a) left-oriented or symmetric gesture (first condition), or (b) right-oriented or symmetric gesture (second condition). The task of the subjects was to correlate the described events with time, assigning each statement with recent or past event. As a result of this study, the hypothesis that the orientation of temporal gestures can communicate the time of the designated events was partially confirmed. The results correspond to the concept of time oriented for the narrator from left to right, where the events of the past are in the center, and later events (recent events, or ‘today’) are located on the right. This conceptual orientation in the experiment was interpreted by the human listeners, although from their point of view, “recent events” are located on the left side of the metaphoric axis.
Multi-word expressions for Russian L2 learners: corpora-based selection with expert verification
Authors: Laposhina Antonina N. ,   Pushkin State Russian Language Institute, Khramchanka Tatsiana A. , Lebedeva Maria Yu. ,   Belarusian State University,   Pushkin State Russian Language Institute
Published: July 2024

The article describes the experience of creating a corpus-based list of the most relevant multi-word expressions for Russian L2 learners, distributed across the levels of the Common European Framework of Reference for Languages (CEFR) from A1 to C1. Modern linguistic and cognitive research shows that our speech is patterned and largely consists of stable segments. This fact is supported by the linguodidactic idea of teaching not isolated language units but their combinations of different nature. However, the selection and ranking of multi-word expressions based on language proficiency levels is constrained by the difficulty of automatically extracting them from a corpus of texts and estimating their frequency, as well as disagreements in defining the boundaries, linguistic nature, and terminology of multi-word expressions. This article describes the experience of compiling a list of the most valuable fixed-type multi-word expressions from various sources: two types of existing CEFR-graded vocabulary lists for Russian L2 learners – lexical minimums for the TORFL (Test of Russian as a Foreign Language) system and Russian KELLY (KEywords for Language Learning for Young and adults alike); the most frequent n-grams from the RuFoLa – Russian L2 textbook corpus and from the Russian Web corpus of internet texts; list of discourse formulas from the «Pragmaticon» project. The CEFR level of each multi-word expression is predicted using the frequency-based Max Delta measure, and its effectiveness is subsequently validated through annotation by multiple experts. The resulting list of multi-word expressions contains 1645 entries from A1 to C1 levels. The proposed version of the list has been implemented into an automated text analysis system for learners of Russian as a Foreign Language and can be useful for a wide range of professionals in the preparation of educational content for foreign language learners. The suggested Max Delta measure has demonstrated a high degree of agreement with expert evaluations within proficiency levels A1-B1. This signifies the importance of further exploring its potential in addressing related practical tasks and in selecting language learning content derived for other languages.
Comparative analysis of deep learning algorithms with reinforcement DDPG, PPO and SAC for unmanned car control in CARLA simulator
Authors: Tikhonov Maksim Konstantinovich ,   Institute of Space and Information Technologies SFU
Published: July 2024

This paper presents a comparative analysis of three advanced deep reinforcement learning algorithms: Deep Deterministic Policy Gradient (DDPG), Proximal Policy Optimization (PPO) and Soft Actor-Critic (SAC) implemented in the Stable Baselines 3 library. The aim of the study is to evaluate the performance and applicability of each of the algorithms for the task of driving an unmanned vehicle in the complex and dynamic environment provided by the CARLA simulator, focusing on key metrics such as total distance, total reward, average speed, deviation from the center of the roadway, and success rate of episodes. The authors describe the experimental testing methodology in detail, including the tuning of training parameters and performance evaluation criteria. Experimental results demonstrate differences in the performance of the algorithms, revealing their strengths and weaknesses in the context of autonomous driving. The paper contributes to the understanding of the advantages and limitations of each algorithm in the context of autonomous driving and offers recommendations for their practical application.
Differential expression of CYP19A1 and lncRNA-CTBP1-AS in the granulosa cells of women with polycystic ovary syndrome
Authors: Ali Ruba M. ,   Southern Federal University, Lomteva Svetlana V. , Aleksandrova Anzhela A. , Sagamonova Karina Yu. , Sagamonov Artur S. , Ammar Manar N.A. , Shkurat Tatiana P. ,   Center for Human Reproduction and IVF,   Southern Federal University,   Nauka,   Center for Human Reproduction and IVF,   Rostov State Medical University,   Rostov State Medical University,   Southern Federal University,   Southern Federal University,   Nauka
Published: July 2024

Background: Hyperandrogenism is the basic indicator of polycystic ovarian syndrome (PCOS) and a key factor in its pathological processes. Patients with PCOS have higher testosterone levels along with a decline in the estradiol/testosterone ratio, which may indicate an aromatase dysfunction. The aim of the study: Investigating the expression levels of CYP19A1 and lncRNA-CTBP1-AS in the granulosa cells (GCs) of women with and without PCOS. Materials and methods: We compared the expression levels of CYP19A1 and lncRNA-CTBP1-AS in granulosa cells from 16 PCOS patients and 20 controls who underwent assisted reproductive technology (ART) treatment at the Center for Human Reproduction and IVF (Rostov-on-Don, Russia) using quantitative real-time PCR. Results: We observed a significant downregulation of CYP19A1 expression in the GCs of PCOS patients, with expression levels approximately 4.7 times lower compared to the control group. Furthermore, we found a positive correlation between CYP19A1 expression and the E2/T ratio in PCOS patients. Conversely, PCOS patients exhibited a remarkable upregulation of CTBP1-AS expression in their GCs, with levels up to 23 times higher than those in the control group. Importantly, we also identified a significant negative correlation between the expression level of CTBP1-AS and CYP19A1 in the GCs of PCOS patients. Conclusion: Our results indicate a potential regulatory role of CTBP1-AS in CYP19A1 expression and suggest its involvement in the pathogenesis of PCOS.
Nonlinear regimes of spin wave propagation in a waveguide with a one-dimensional hole array
Authors: Martyshkin Aleksandr ,   Saratov State University, Sadovnikov Aleksandr ,   Saratov State University
Published: July 2024

Purpose. Investigation of spin-wave signal passage in a system of magnetic microwaves separated from each other by a one-dimensional array of holes. Using numerical and experimental methods to show controlled spatial-frequency selection of the signal in linear and nonlinear modes of operation. Methods. Micromagnetic modeling of the spatial intensity distributions of spin waves. Obtaining S-parameters of spin waves propagating in a tangentially magnetized structure using a vector circuit analyzer. Results. The spatially selective properties of the structure in linear and nonlinear modes are demonstrated using micromagnetic modeling. A mechanism for controlling the frequency range of the Bragg zone is revealed using a vector analyzer. Conclusion. The proposed structure can be used as a functional element in planar topologies of magnon networks and parallel signal processing devices based on them.
Transdisciplinarity of modern science as a form of social consensus
Authors: Grishechkina Nataliya V. ,   Saratov State University, V. I. Razumovsky Saratov State Medical University, Ustyantsev Vladimir B. ,   Saratov State University
Published: July 2024

Introduction. Transdisciplinarity can be reinterpreted from a scientific and philosophical category to a socio-philosophical one by referring to the theoretical constructions of social consensus. In this case, its general social functions are emphasized, which are the social and communication effect of transdisciplinary interactions between science and society. Theoretical analysis. The socio-philosophical analysis of transdisciplinarity is formed in the field of categories of sociality, time, object, truth and values. They are revealed in the autopoietic analysis of the society made by N. Luhmann, which continues the Weberian traditions in relation to the study of scientific rationality. Linking the logical, axiological and social plans of the formation of truth into a single whole in the dialogue between science and society is actualized in the real context of social time. The growth of scientific specialization, which breaks the unified image of science, determines the axiologization and ethicization of scientific knowledge. Transdisciplinarity, based on the social recognition of specific scientific knowledge in everyday life, becomes a tool for gathering disparate academic groups into a symbolic social subject of science. Conclusion. Transdisciplinary science as a hybrid social subject is capable of autonomous communicative behavior, which allows it to act as an agent of policy related to the application of scientific knowledge and thereby legitimize its claims to social authority.
Modulatory Effects of Vitamin D: A Possible Approach to Mitigate Air Pollution Related Pregnancy Complications
Authors: Singhal Bharti , Chauhan Sarthika , Soni Nikita , Gurjar Vikas , Joshi Vibhor , Kaur Prasan , Ratre Pooja , Kumari Roshani , Mishra Pradyumna Kumar
Published: July 2024

Approximately 99% of people on the planet breathe air that exceeds the World Health Organization’s permitted threshold for pollution. South Asia is home to the world's most polluted cities. Population-based studies have suggested that women's reproductive health outcomes are worsening due to air pollution. Preeclampsia, miscarriage, gestational diabetes, high blood pressure, and unfavorable birth outcomes, including preterm birth, low birth weight, or even stillbirth are all linked to exposure to air pollution during pregnancy. It is estimated that 0.61 million deaths in India alone were related to indoor air pollution. Females frequently cook in the household using solid fuel as a primary combustion source. Women in the regions with the highest population density are disproportionately affected by high levels of poor-quality indoor air. Recently, it has been proposed that air pollution has a distinct role in the onset of vitamin D deficiency. Numerous studies have explored associations between low vitamin D level and various female reproductive health conditions since the discovery of the vitamin D receptor. It is worthy to note that some of these reproductive health conditions positively correlate with the severity of air pollution. In this study, the evidence has been synthesized on vitamin D's protective properties and dietary and pharmaceutical interventions have been discussed to show their beneficial effects in decreasing the long-term negative impacts of air pollution on women's health.
Exploring the Therapeutic Potential of Sodium Hydrosulfide in Alleviating Oxidative Stress and Ovarian Dysfunction in a Rat Model of Polycystic Ovary Syndrome
Authors: Vaziripour Maryam , Faghihi Mahdieh , Ranjbaran Mina , Asadi Bahareh , Abdi Arash , Kianian Farzaneh , Hajiaqaei Mahdi , Seiﬁ Behjat
Published: July 2024

Background: Oxidative stress is known to play a key role in the occurrence of polycystic ovary syndrome (PCOS) as the most common cause of anovulatory infertility. The purpose of the current study was to investigate whether diminished activity of ovarian enzymes responsible for hydrogen sulfide (H2S) production, cystathionine β-synthase (CBS), and cystathionine γ-lyase (CSE) contributes to oxidative stress in PCOS. The study also explored whether administration of sodium hydrosulfide (NaSH), an H2S donor, could ameliorate PCOS symptoms by reducing oxidative stress.
Methods: The total eighteen rats were randomly assigned into three groups (n=6): control, PCOS, and PCOS+NaSH. PCOS was induced by intramuscular injection of estradiol valerate to induce PCOS in the PCOS and PCOS+NaSH groups. The PCOS+NaSH group received 30 μmol/L of NaSH in drinking water for 27 days after PCOS induction. Ovarian tissue samples were analyzed for oxidative stress indices including malondialdehyde (MDA) levels and superoxide dismutase (SOD) activity. Additional analyses measured H2S levels, CBS, and CSE activity.
Results: PCOS induction led to a significant decrease in SOD activity, H2S levels, and CBS and CSE activity, accompanied by a significant increase in MDA levels (p<0.0001). Furthermore, PCOS caused severe histological alterations in the ovaries. However, administration of NaSH effectively restored all measured parameters to pre-PCOS induction levels (p<0.0001).
Conclusion: This study showed that the decrease in the activity of H2S-producing enzymes and H2S levels may contribute to oxidative stress in PCOS. Therefore, administration of NaSH as a H2S donor can be considered as a potential therapeutic strategy for PCOS patients.
Evaluation of the Effect of Embryo Transfer Methods on Pregnancy Outcomes: A Retrospective Study and Future Perspectives
Authors: Azimi Samira , Modarres Shahrzad Zadeh , Esgandari Mahsa , Fahimi Saba  Abdollahzadeh , Fazeli Ramina
Published: July 2024

Background: Trans-abdominal ultrasound (TAUS) and transvaginal ultrasound (TVUS) are used for embryo transfer. However, few studies were conducted to compare the methods and assess their effect on pregnancy outcomes.
Methods: A retrospective cohort study was conducted at Mahdieh Hospital in Tehran, analyzing 506 ICSI cycles with fresh embryo transfer. The study period was from April 2019 to March 2022. Following the evaluation of patients’ profile, they were divided into two groups of TAUS (n=250) and TVUS (n=256). The pregnancy outcomes included positive test of β-HCG, history of miscarriage, ectopic pregnancy (EP), clinical pregnancy, and the duration of the embryo transfer were compared between two groups. Mann-Whitney U test, Pearson Chi-Square test, Fisher's exact test, and logistic regression were used for data analysis.
Results: The rate of chemical and clinical pregnancy in the TAUS group was higher compared to the TVUS group, which was statistically significant (p<0.05). The rate of live term birth and live preterm birth was higher in the TAUS group compared to the TVUS group, though the difference was insignificant. Moreover, EP and abortion rates were higher in TVUS group compared to the TAUS group, but the differences were not statistically significant. The odds ratio of achieving pregnancy was higher with TAUS compared to TVUS, but this was only statistically significant for the age variable.
Conclusion: The use of TAUS method appears to be associated with improved pregnancy outcome, including higher rates of chemical and clinical pregnancy, compared to TVUS. Yet, further research is needed to confirm these findings and elucidate underlying mechanisms.
Simultaneous Endometrial Cancer with Extensive Pelvic and Vulvar Endometriosis: A Case Report
Authors: Aminimoghaddam Soheila , Abolghasem Nastaran , Jamshidnezhad Niousha
Published: July 2024

Background: Endometrial cancer represents the most prevalent malignant genital tract neoplasm in high-income countries and is the second most common cancer worldwide following cervical cancer. Endometriosis is a benign condition wherein endometrial glands and stroma are found outside the uterine cavity.
Case Presentation: During a routine care and ultrasound examination of the uterus and adnexa of a 64-year-old woman, an increased endometrial thickness (22 mm) was noted. In 2023, according to ultrasound report, the patient underwent diagnostic curettage with immunohistochemistry, revealing a pathological diagnosis of endometrial cancer (endometrioid adenocarcinoma) with positive staining for p16, estrogen receptor (ER), and vimentin. Subsequently, after one week, she underwent complete surgical staging. Extensive superficial endometriosis disseminated in the pelvis and vulva was noted during surgery and preoperative examinations. Final pathology confirmed a well-differentiated typical endometrioid carcinoma (grade 1) with 40% myometrial invasion and positive lymphovascular invasion. The patient was considered to be at stage 1A.
Conclusion: Despite some studies suggesting an unclear association between endometriosis and endometrioid or clear-cell ovarian cancers, the correlation between endometriosis and endometrial cancer and its prognosis remains ambiguous. Additionally, although infertility has been linked to both endometrial cancer and endometriosis in various studies, the presented case exhibited no signs of infertility. Extensive pelvic endometriosis with vulvar involvement was present, yet the patient did not exhibit any symptoms. This is in contrast to the typical initial manifestation of endometrial cancer, which is abnormal uterine bleeding. The patient's condition was incidentally detected through routine care due to an abnormal increase in endometrial thickness, prompting this presentation.