bluuebunny/crossref_metadata_2025 huggingface dataset:
Depresión, ansiedad y calidad de sueño en deportistas ante la contingencia sanitaria COVID-19. Estudio exploratorio.
Authors: Guzmán Cortés Jorge Alberto , Luna Padilla Jesús Antonio , Sánchez Betancourt Javier Tadeo , Villalva Sánchez Ángel Fernando
Published: April 2024

Objetivo: Identificar los síntomas de ansiedad, depresión y calidad de sueño ante la contingencia sanitaria en una muestra de deportistas mexicanos, mediante un estudio descriptivo-exploratorio de corte transversal. Método: La muestra del estudio fue 110 deportistas con una media de edad de 24.4 años, los cuales tenían distintos niveles de experiencia: amateur, semi-profesional y profesional. Se aplicaron los siguientes instrumentos: inventario de depresión de Beck, escala de ansiedad de Hamilton y el índice de calidad de sueño de Pittsburg. Resultados: Se mostraron que los deportistas profesionales muestran menores niveles de ansiedad y depresión, respecto a los semi profesionales y amateur. No obstante, su calidad de sueño fue menor. Conclusión: La pandemia de COVID-19 ha hecho evidente la necesidad de cambios en las prácticas profesionales y en la investigación científica de la psicología del deporte que beneficien a la comunidad de atletas, por ello la presencia de especialistas en la salud mental en los equipos deportivos será una necesidad de alta prioridad, que cumplirá con el fortalecimiento de la preparación psicológica y el cuidado de la salud mental.
Developing the general intertheory of documentology
Authors: Nesterovich Yu. V.
Published: April 2024

The author examines the current status of documentology. The difference between documentary, ontological and theoretical knowledge is explained as related to the sciences of documentary information, and development of documentology is discussed through the lens of the theory of the structure of scientific knowledge. Based on the logical typology of cognition objects as subjects of thought, the just identifications of subjects of thought and concepts related to information units denoted by the term “document” and related terms, are offered. The author analyzes several popular interpretations of various information units. The need for the common intertheory of documentology addressing the phenomena, processes, info units within the documentation activities and provision of socially significant information to the society, is substantiated.
Displaced materials of German origin in Tomsk State University Library
Authors: Portnykh V. L.
Published: April 2024

The article explores available data on displaced materials from Germany in the Research Library of Tomsk State University (TSU), one of the largest academic libraries in Russia. It provides a summary on where and how German books were transported to TSU. The paper also explores what do they represent and where they originate from. Among other sources, the author uses unpublished documents related to negotiations between Russia and Germany on the displaced art in the 1990s. He concludes that the materials mostly have library provenance and arrived to the USSR by train No. 176/8037 Berlin – Leningrad in August 1946. Most probably, the library materials were delivered from Leningrad to Moscow, and later, in 1980, from Moscow to Tomsk. Most of the books belonged to the libraries of Magdeburg, Bremen and Berlin. Some part of the Tomsk collection might have been transported by another train from Berlin to Moscow. However, since these books were stored at the same storage facility at Berlin-Rummelsburg station as those dispatched to Leningrad, we might admit some sorting mistakes. Relatively modern printed books make the core of the collection though there is a small number of medieval manuscripts and archival documents. Possibly, the latter ended up in Tomsk by accident.

The article is prepared in the State Public Library of Scientific Technological Library of the Siberian Branch of the of the Russian Academy of Sciences, project No. 122041100088-9 “Transformation of the book culture in the social communications in the 19th-21st centuries”.
Not to throw the baby out with the bath water… On the approach to assessing research output
Authors: Beskaravainaya E. V.
Published: April 2024

The need for evaluating scientific research demands adjusting methodology. Today, the two existing approaches, namely bibliometrical analysis and expert opinion, will not meet the demands of researchers and administrators if used separately.  

Based on the reviews, reports and personal practical experience, the author examines the pros and cons of these two approaches and concludes on the need to integrate them so they complement one another. The bibliometrical studies related to scholarly publications processing and quantitative analysis enable to identify the most globally important works while the expert opinion enables to distinguish radically new themes at the early stage.

The author argues that the methodology of three components will be the most efficient for science advance; they are: bibliometrical analysis, expert review, and opinion of the professional who would browse the publications in his/her specialty searching for promising themes. Properly synchronized, these three approaches would enable to make economically efficient and informative foundation for rating research activities and to identify the newest vectors in science at the early stage of their emergence.
Tác động của chủ nghĩa vật chất đối với hành vi tiết kiệm của sinh viên đại học tại Hà Nội Việt Nam: Vai trò của khả năng tự quản lý tài chính và tiêu dùng bốc đồng
Authors: Nguyễn Thị Diệu Thu , Nguyễn Thị Kim Oanh , Trần Thị Thủy Anh
Published: April 2024

Nghiên cứu này xem xét mối quan hệ giữa chủ nghĩa vật chất và hành vi tiết kiệm trong số sinh viên đại học tại Hà Nội Việt Nam, vai trò của tiêu dùng bốc đồng, và khả năng tự tin tài chính trong mối quan hệ nêu trên. Bằng cách phân tích dữ liệu từ 253 sinh viên đại học, nghiên cứu này cho thấy rằng những sinh viên có chủ nghĩa vật chất cao thường thực hiện hành vi tiết kiệm so với đồng nghiệp của họ thông qua tác động trung gian của tiêu dùng bốc đồng. Cụ thể, nghiên cứu cho thấy một mối quan hệ tích cực giữa chủ nghĩa vật chất và hành vi tài chính, mặc dù không đạt mức ý nghĩa thống kê. Hiệu ứng trung gian của tiêu dùng bốc đồng trong mối quan hệ này có ý nghĩa thống kê, vì những người có chủ nghĩa vật chất và tiêu dùng bốc đồng thường chi tiêu không kế hoạch. Khả năng tự tin tài chính đóng vai trò quan trọng trong việc thúc đẩy hành vi tiết kiệm. Mối quan hệ giữa khả năng tự tin tài chính và chủ nghĩa vật chất và hành vi tiết kiệm có mức độ tương quan thấp, cho thấy tác động không phụ thuộc lẫn nhau.
Kepastian Hukum Atas Kebocoran Data Pribadi Pengguna Aplikasi Online
Authors: Mochtar Mevanisa Berlian
Published: April 2024

Technology is essential for human progress. Nowadays, everyone is involved in technology. our personal identity is also stored in the electronic state database system. Various new online applications are created to support human life, making human work easier and faster. to use these online applications, we must register our personal data. However, the more sophisticated the technology, the more ways for criminals to carry out their actions. many hackers carry out their actions to steal other people's personal data, not even hesitating to attack government agencies. With the urgency of personal data theft, Indonesia passed a law governing personal data protection. the new rules are still very new and must be applied properly.
El El diálogo entre las comunidades locales y los procesos de conservación-restauración de bienes culturales. Nuevas perspectivas y desafíos.
Authors: Calvo Bayo Isabel
Published: April 2024

El diálogo entre las comunidades locales y los procesos de conservación y restauración del patrimonio es esencial para una gestión cultural eficaz y sostenible. Este intercambio facilita una comprensión más profunda de las necesidades, valores y preocupaciones de las comunidades locales con el patrimonio cultural. Al involucrar a todas las partes interesadas en el proceso de toma de decisiones, se fomenta un mayor sentido de pertenencia y responsabilidad compartida.

Establecer este diálogo puede tener un impacto positivo significativo en la identidad cultural, el desarrollo sostenible y la cohesión social de las comunidades, fortaleciendo así su conexión con su entorno y contribuyendo al enriquecimiento del patrimonio cultural. Además, este enfoque abre nuevas perspectivas y desafíos para desarrollar estrategias que reflejen las necesidades y valores de las comunidades locales, garantizando así la preservación y valorización del patrimonio cultural para las generaciones futuras.

patrimonio, sociedad, restauración, conservación, diálogo, oportunidad
Development and validation of the chromatography-mass spectrometry technique for polyprenols quantitative assessment
Authors: Popov N. S. , Antipina A. A. , Savintsev S. V. , Balabanyan V. Y.
Published: April 2024

Introduction. Polyprenols are known as a class of natural long-chain isoprenoid alcohols, which are natural bioregulators that directly participate in the synthesis of cell membrane glycoproteins. Their hepatoprotective activity is proven, as well other types of their pharmacological effects are known, which is the reason of significant interest in these substances as a promising medicinal product. It is non-trivial task to determine the sum of polyprenols in extracts as include design and implementation of accurate reproducible analytical methods, which will subsequently be used in standardization.

Aim. Development and validation of the chromatographic-mass spectrometric technique for polyprenols identification and their quantitative assessment.

Materials and methods. Chromatographic separation of polyprenols was performed by using an HPLC Agilent 1260 Infinity II (Agilent Technologies, США); with the mixture of methanol, n-hexane, propanol-2, and aqueous ammonium acetate solution as eluent in gradient mode. An AB Sciex QTrap® 3200MD (AB Sciex Pte. Ltd., Singapore) triple quadrupole mass spectrometer was used as a detector, with the registration of polyprenols adducts.

Results and discussion. The conditions for chromatographic separation and detection of polyprenols were identified. The developed technique was validated for the following characteristics: specificity, limit of detection, limit of quantification, linearity, accuracy, precision, range of application, and stability.

Conclusion. It was determined the content of polyprenols in the substance recieved from Ginkgo biloba L. and Picea abies L. The developed technique can be used in the future to assess the content of polyprenols in drug products or pharmaceutical substances.
Heart failure and economic impact: an analysis in real clinical practice in Italy
Authors: Dovizio Melania , Leogrande Melania , Degli Esposti Luca
Published: April 2024

Introduction: Heart failure (HF) affects 1% of subjects aged 45-55 and over 10% of subjects aged ≥ 80 and in Italy represents the third leading cause of hospitalization.
Objective: To analyse the clinical and economic burden of HF in the Italian real clinical practice.
Methods: A retrospective analysis was conducted on the administrative databases of healthcare institutions for 4.2 million health-assisted residents. Between January 2012 and March 2021, patients with a hospital discharge diagnosis for HF were included. Among healthcare utilization and costs, treatments, hospitalizations, and specialist services were evaluated. The HF group was compared with a population without HF (no-HF) similar for age, sex distribution, and cardiovascular risk factors.
Results: The same number of patients with (N = 74,085) and without HF (N = 74,085) was included. A profile of cardiovascular comorbidities emerged in the HF group, mainly hypertension (88.6%), cardiovascular disease (61.3%) and diabetes (32.1%). Hospitalizations from any cause were 635.6 vs 429.8/1,000 person-year in the HF vs no-HF group. At one-year follow-up, all-cause mortality was 24.9% in HF patients and 8.4% in no-HF. Resource utilization/patient was respectively 26.8 ± 15.9 vs 17.1 ± 12.5 for medications, 0.8 ± 1.2 vs 0.3 ± 0.8 for hospitalizations, and 9.4 ± 12.6 vs 6.5 ± 9.8 for specialist services. This resource utilization resulted in significantly higher total healthcare costs in the HF group vs no-HF group (€ 5,910 vs € 3,574, p < 0.001), mainly related to hospitalizations (€ 3,702 vs € 1,958).
Conclusions: HF patients show a significantly higher clinical and economic burden than no-HF, with total healthcare costs being about 1.7 times the costs of the no-HF group.
Keywords: Cardiovascular comorbidities, Healthcare costs, Heart failure, Hospitalizations
Developing Iranian EFL Learners’ Grammatical Knowledge: Insights from Spaced versus Massed Instruction
Authors: Behbahani Hossein Kargar , Darazi Mansoor Ali , Kumari R Lakshmi
Published: April 2024

Despite grammar receiving greater emphasis than other language skills in Iranian schools, Iranian EFL students encounter challenges in acquiring the linguistic structures they are exposed to, resulting in insufficient grammar knowledge. This experiment looked into the effects of spaced versus massed instruction on learning modal auxiliaries among Iranian EFL learners with a lower-intermediate command of English. To this end, through an Oxford Quick Placement Tests (OQPT), 78 lower-intermediate learners were selected and assigned in three conditions, with 26 subjects in each: Spaced condition, Massed condition, Control condition. Using a Levene’s test, it was shown that the subjects were homogenous prior to the experiment. Then, a pretest was used. The results of the pretest showed that there was no between groups’ difference prior to the treatment. Afterward, the spaced group received three 30-minute sessions on modal auxiliaries based on Fundamentals of English Grammar by Azar (2016), while the massed condition received the instruction in just a single 90-minute session. The subjects in all conditions were then posttested. The results of a one-way between groups analysis of variance (ANOVA) showed that both treatment groups outperformed the comparison group (p < .05) with a large effect size (eta squared = .63). The results of post-hoc analyzes using Bonferroni adjustment further revealed that there was a statistically significant difference between the two experimental conditions (p < .05). That is, the spaced subjects gained more compared to their massed counterparts with regard to the targeted L2 form. Pedagogically, this study suggests ESL/EFL instructors could integrate spaced instruction strategies for enhancing students' proficiency in modals. Material developers may also leverage these findings to create more engaging and effective instructional materials.
Cooperative Learning Using Canva to Boost Speaking Activities in a Primary School
Authors: Mafiroh Riza , Agustina Sheila , Megawati Fika , Phumphanit Yupha
Published: April 2024

English is the world's international language and is recognised as one of the languages taught in many schools in certain countries even though English is not their first language. This also happened in Thailand, where English learning and teaching activities have been carried out for more than a century. This research aims to know how cooperative learning using Canva boost speaking activities in primary school. The researcher applies a qualitative case study design by collecting data using field notes, informal interviews, and open-ended questionnaires. The subjects of this research were English teacher and grade- -sixth students at Bannonkokkha School, Thailand. The research results show that most students gave positive feedback towards cooperative learning using Canva which was considered effective to boost speaking activities and increase social skills for students. Students feel happy, enjoy, and comfortable when the teacher applies cooperative learning since students can create positive collaboration. They also helped with the visual representations of images from Canva provided by the teacher in the form of digital and flashcards. In addition, students feel that the activities they have done with the group help them to reach goals and engage motivation to learn together. Hence, cooperative learning is considered suitable for primary levels with supporting media, namely Canva. This research is expected to provide new knowledge for readers so that the implementation of this cooperative learning with the use of Canva in the future can contribute to the development of more innovative and effective learning at the basic education level.
The Contribution of Environmental Vocabulary and Reading Interest in EFL Students’ Writing Skills of Exposition Texts
Authors: Ali Ririn Fujiarti , Thahar Harris Effendi
Published: April 2024

This research is motivated by the low interest in reading that students have. The low interest in reading makes the lack of vocabulary mastery. The purpose of this study is to explain the contribution of environmental vocabulary mastery and reading interest to students' expository text writing skills. This type of research is quantitative research. The method used in this research is descriptive method. The research data were obtained from the final test results of exposition text writing skills of class X students of SMK Negeri 1 Bandar Sungai Kijang, Pelalawan Regency, Riau. Instruments to collect vocabulary mastery data using objective tests, reading interest using questionnaire techniques / research instruments, while to collect data on exposition text writing skills using written tests. The technique of analyzing data used in this research is descriptive and inferential statistics. The results showed that there was a significant contribution between the mastery of vocabulary in the environmental field to the skill of writing exposition texts of Class XI students of SMK Negeri 1 Bandar Sungai Kijang Regency Pelalawan Riau. This means that the better the mastery of vocabulary in the environmental field of students, the better the degree of writing skills of the student's exposition text. Then there is a significant contribution between reading interest and exposition text writing skills of Class XI students of SMK Negeri 1 Bandar Sungai Kijang Regency Pelalawan Riau. This means that the better the student's interest in reading, the higher the degree of skill in writing the student's expository text. Finally, there is a simultaneous contribution between the mastery of vocabulary in the environmental field and reading interest to the exposition text writing skills of Grade XI students of SMK Negeri 1 Bandar Sungai Kijang Regency Pelalawan Riau.
A Study on University Students’ Self-Regulated Motivation to Improve EFL Speaking Skills Across Academic Levels
Authors: Warni Silih , Apoko Tri Wintolo , Martriwati Martriwati , Nongkhai Angsu-orn Na
Published: April 2024

opportunities to speak English in class. Self-regulated learning enables some self-motivated students to find opportunities outside the classroom to have face to face and virtual interaction to enhance their English speaking. This study is intended to examine the level of self-regulated motivation of university students to improve their Speaking of English as a foreign language (SRMIS-EFL). Moreover, this study investigates if students' SRMIS-EFL differ accross academic levels. 156 EFL students from an English Department in a private university in Jakarta took part in this study. Self-reported SRMIS-EFL questionnaire was used as the data collecting method. Descriptive and inferential statistical analysis was then conducted. The findings showed that the overall SRMIS-ELF level of students was high. Moreover, students used various self-regulatory motivation strategies to enhance their EFL speaking skills. As for the aspect of academic level, the results of this study shows that SRMIS-EFL of senior students are lower than SRMIS-EFL of junior students , and there is a statistically significant difference of students’ SRMIS-EFL across academic levels. The findings of this study suggest the need for motivational regulation training into EFL programs to increase students’ awareness of motivational self-regulation strategies to enhance their self-regulated motivation.
Self-Regulated Learning Strategy in the Learning Instructions of Interpretive Reading Courses
Authors: Nurjanah Ratih Laily , Hadi Muhammad Zaki Pahrul , Willems Janou
Published: April 2024

The integration of the SRL strategy into instructional practices is motivated by the desire to nurture students' autonomy in learning, a trait that is increasingly emphasized in contemporary educational discourse. This study investigates the integration of the Self-Regulated Learning (SRL) strategy into the instructional framework of an Interpretive Reading course. Given the emphasis on fostering students' learning independence inherent in the SRL strategy, it becomes crucial to ensure that instructional practices align with this objective, particularly within the context of a course designed for first-semester university students. The study adopts a case study approach within an Interpretive Reading class at a private university in Indonesia. Here, the focus is on evaluating the instructional strategies vis-à-vis the criteria delineated in each phase of the SRL strategy: Forethought and Planning, Monitoring of Performance, and Reflection on Performance. The findings reveal that the instructional interventions implemented by the lecturer predominantly meet the criteria established for each phase of the SRL strategy. These instructions serve as scaffolding mechanisms, guiding students towards developing their autonomy in learning processes. Furthermore, the study underscores the effectiveness of these instructions in enhancing students' interpretive reading skills. Consequently, the outcomes of this study hold implications for the integration of digital texts within the instructional context, suggesting their potential to further support and enhance student learning experiences in Interpretive Reading classrooms.
Linguistic Clarity in Mudharabah Contracts: Ensuring Transparency and Fairness in Indonesian Islamic Financial Institutions
Authors: Zaidi M Zaidi
Published: April 2024

This research aims to analyze the use of language in Sharia financial agreements, with a focus on a case study of mudarabah contracts. Sharia financial agreements play a crucial role in regulating financial transactions in accordance with Sharia principles. In the context of mudarabah contracts, the appropriate and clear use of language becomes a key aspect in maintaining transparency, clarity, and understanding among the parties involved. This research adopts a qualitative method with a case study approach. Research data is collected through document analysis, including mudarabah contract agreements in real practice. The data is then thematically analyzed, focusing on word selection, the use of characteristic clauses, sentence structure, and other language structures in mudarabah contracts. The results of the analysis indicate that the appropriate and clear selection of words in mudarabah contracts is important to reflect Sharia principles and maintain transparency. Furthermore, the use of characteristic clauses helps regulate profit sharing, loss sharing, and the responsibilities of the involved parties. Clear and structured sentence arrangements also ensure clarity and readability of the contract contents. Additionally, the use of distinctive Arabic language structures provides clarity in describing actions that have been taken and instructions that must be followed by the parties involved. This research contributes significantly to understanding the use of language in Sharia financial agreements, particularly in the context of mudarabah contracts. The findings of this research are expected to serve as a reference for practitioners and academics in developing effective Sharia financial agreements in accordance with Sharia principles.
Clinical Outcomes of a New Hydrophobic Trifocal Intraocular Lens with Hydroxyethyl Methacrylate in Cataract Surgery: A Prospective Multicenter Study
Authors: Jo Eunhui , Kim Bokyung , Kim Tae-im , Kim Mee Kum , Choi Chul Young
Published: April 2024

Purpose: To investigate the clinical outcomes of new hydrophobic trifocal intraocular lens with hydroxyethyl methacrylate in the Korean populationMethods: This prospective, multicenter, and observational study evaluated the clinical outcomes of 80 eyes of 40 patients with age-related cataract underwent cataract surgery using CNWT (Clareon PanOptix). Assessment included monocular and binocular uncorrected distance visual acuity, corrected distance visual acuity, uncorrected intermediate visual acuity (at 60cm), near visual acuity (at 40 and 33 cm), uncorrected defocus curves, questionnaires evaluating photic phenomena, spectacle independence, and spectacle free satisfaction.Results: At postoperative 3 months, mean uncorrected binocular visual acuities were 0.04, 0.04, 0.03 logarithm of the minimum angle of resolution (logMAR) at far, intermediate, and near distances, respectively. All patients achieved uncorrected binocular visual acuity of 0.2 logMAR or better. Monocular and binocular defocus curve indicated a mean visual acuity of 0.2 logMAR or better at the defocus range of +1.0 to – 3.0 diopters (100 to 33 cm) and +1.0 to – 3.5 diopters (100 to 28 cm). High spectacle independence was observed at all distances, with 37.5% patients reporting photic phenomena.Conclusions: The Clareon PanOptix intraocular lens has shown positive clinical outcomes, providing a viable option for cataract surgery. These lenses effectively address patients’ visual needs, especially in intermediate and near distance tasks, reducing dependence on glasses.
When the Wind Is Gently Rustling: Film and the Aesthetics of Natural Beauty
Authors: Hanich Julian
Published: April 2024

While experiencing natural beauty is a key appeal of the cinema and other moving-image media, academic film scholarship has rarely paid attention to it. In this article I will use the widespread motif of the gently rustling wind as a pars pro toto to make some general remarks about the experience of natural beauty in film. I will first note the firm place of the motif of the rustling wind in film theoretical debates from the late 19th century until today. Then, I will propose three modes of how viewers can experience this beautiful motif in film. In the following section I will discuss how film's mediation modifies the experience of natural beauty. And in a final step I will explore the reciprocal relation between nature and film, and how one can enhance the appreciation of the other. Ultimately, I follow two – mutually imbricated – goals. On the one hand, I aim to (re)connect the film theoretical discourse about the wind in the trees to natural beauty. On the other hand, I use the motif of the gently rustling wind to say something more general about the aesthetic experience of natural beauty in film.
Even the Sea is Broken: Return and Loss in Razan AlSalah’s Video Works
Authors: Makki Samira
Published: April 2024

This article probes the ways in which returning to Palestine is imagined in Razan AlSalah’s two video works Your Father Was Born 100 Years Old, and So Was the Nakba (2018) and Canada Park (2020). In foregrounding the refusal of configurations substantiated by state concessions and normalisation treaties, the article treats loss as central to the manifold rehearsals of return. In AlSalah’s work, loss is understood not as becoming less, but rather as a proposition for becoming otherwise. Here, the practice of loss is explored through the glitch as both a conceptual framework espousing opacity and a pragmatic tool engaging pixel breaks. Rather than reducing the glitch to a mere erroneous aesthetic, the article underscores the active capacity in encountering a glitch or deliberately engendering it by exploring the tensions between colonial imageries reproduced in digital maps, and, in contrast, montage as AlSalah’s tool for intervention. Finally, the article serves as a theoretical experimentation with what I call “dialectical poethics,” which reads the filmic return through loss as an attempt to go against linearity, intelligibility, and finality, yet insists on a materialist grounding of the glitch as a method that is historically situated rather than always-already emancipatory.
Blue Boys: Maurice Pialat, Nicolas Poussin and the Work of Art
Authors: Gerstner David A.
Published: April 2024

Maurice Pialat (1925–2003) in his Libération article “Éloge de Poussin” (1987) tells us that cinema has made no progress since the Lumière brothers’ first projected images. Provocatively, he informs his readers that only painting has progressed and, as such, remains the far more innovative art form. For all the pointed remarks directed with some force towards French film critics and filmmakers, Pialat’s short notes in Libé offer us something more. It is one of the few opportunities to consider the auteur’s critical and aesthetic approaches to filmmaking. While Pialat emphasises the failure of critics and filmmakers to elevate cinema to the level of art, the article more saliently invites us to analyse Pialat’s understanding of cinematic practice as an intricate enfolding of painterly and cinematic concepts. In this article I contend that, through a reading of the theoretical dimensions Pialat introduces in his “elegy” to the Classicist painter Nicolas Poussin (1594–1665), along with an analysis of a selection of the director’s films, we not only discover Pialat’s film-philosophy; moreover, we discover new ways to study Pialat’s acute rendering of fraught manhood. Significantly, I argue, Pialat’s wrestling with masculinity (fatherhood, sexual desire, boyhood, and so on) reveals itself through a key element critical to Poussin’s aesthetic palette: the colour blue.
PRELIMINARY DATA ANALYSIS AND FEATURE CONSTRUCTION IN FINANCIAL AND ECONOMIC INFORMATION PROCESSING TASKS
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, SEMENOVA P.A. , GRINEVA N.V. , MIKHAYLOVA S.S.
Published: April 2024

Machine learning is the main field of artificial intelligence. This contributes to a new stage in the development of the field of information technology, since now the computer is able to switch to self-learning mode without explicit programming. The aim of the study was to find the optimal set of exogenous variables that ensures the best quality of the model in the task of forecasting output volumes. As a result, several methods of constructing new attributes are implemented and the main aspects in the preprocessing of data from this subject area are highlighted.
CREATING A SUPPLIER UTILITY METRIC AND RESEARCHING IT TO WORK WITH SEGMENTS
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, GRINEVA N.V. , SUKHAN M.A. , KONTSEVAYA N.V.
Published: April 2024

According to Marketplace Research 2022, the e-commerce segment is growing rapidly, but sellers don't always understand what factors affect liquidity. Developing a recommendation system and set of measures based on seller usefulness will potentially improve service quality, positively impact the consumer experience, help the marketplace increase seller support and interaction with sellers, and improve the marketplace's competitiveness and reputation. The purpose of the study is to create a seller usefulness metric to further build a recommendation system and develop a set of measures to work with segments of sellers. Results: the algorithm for assessing the usefulness of the seller can be used to create a recommendation system and develop a set of measures that improve the quality of services and the potential profit of the site.
CAFé'S PERFORMANCE MODELING WITH SPATIAL DATA
Authors:   LLC «BST Digital», Moscow, Russian Federation, IVANOV I.D. , ABLIAZINA N.H. , GRINEVA N.V. ,   The Russian Presidential Academy of National Economy and Public Administration, Moscow, Russian Federation,   Financial University under the Government of the Russian Federation, Moscow, Russian Federation
Published: April 2024

The relevance of the article lies in the importance of the placement problem for the economic performance of organizations and the growth of interest in the use of spatial data in decision support systems in recent years. The main purpose of the research work is to model the estimation of impact of important spatial features for café's turnover prediction. The article analyzes some approaches that combine spatial data with machine learning to solve the placement problem. A correlation analysis of spatial data has been carried out. A multistage feature selection for two sets of features proper for different types of models was made. The hyperparameter optimization for the selected modeling methods (linear regression, decision tree, random forest, gradient boosting) was made and models were created. The main tools are the Python programming language and its libraries pandas, sklearn, XGBoost, hyperopt, shap, boostaroota. The analysis of the obtained results was carried out. The gradient boosting model was identified as optimal in terms of accuracy and interpretation. The result of the work is the created approach to modeling the economic performance of a company using machine learning based on spatial data.
ON THE ISSUE OF PAYMENTS IN FAVOR OF INDIVIDUALS WITHIN THE FRAMEWORK OF LABOR RELATIONS AS OBJECTS OF TAXATION WITH INSURANCE CONTRIBUTIONS FOR COMPULSORY SOCIAL INSURANCE: CURRENT ISSUES OF LEGAL REGULATION AND ENFORCEMENT
Authors:   Mordovian State University N.P. Ogarev, Saransk, Russian Federation, GALAEVA L.A.
Published: April 2024

The article, based on an analysis of the legislation on taxes and fees and law enforcement practice, examines the grounds and conditions for including (attributing) amounts of money paid to employees as individuals to the object of taxation by the insurance premium tariff for certain types of compulsory social insurance. Attention is focused on the problematic aspects of qualifying a number of payments, the mention of which is not contained in Article 422 of the Tax Code of the Russian Federation. The author substantiates the feasibility of improving the current legislation and overcoming the various legal positions of policyholders-employers, tax authorities, insurers and arbitration courts regarding the object of taxation of insurance premiums on payments made in favor of an employee as an insured person.
TYPOLOGICAL SCHEMES FOR THE FORMATION OF DIGITAL SPACE IN RUSSIAN INDUSTRY: KEY ELEMENTS AND BOUNDARIES OF APPLICATION
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, OBOLENSKAYA L.V. , BEKULOVA S.R.
Published: April 2024

The object of study in the article is a variety of typological schemes for the formation of the digital space of industry. In the context of a systems approach, the goal is to develop a classification of objects of this set for use in Russian practices. At the same time, attention is focused on two significant classification features of the schemes for the formation of digital space of industry: the boundaries of application and the structural elements used. Two problems are solved: (1) identification of options for spatial-sectoral boundaries of the application of typological schemes and (2) identification of the types of structural elements used. The methodological basis of the study is the classification approach, methods and means of systemic and economic analysis, generalization and interpretation of the collected information. Based on the results of the study, it is concluded that the use of the proposed and other classification criteria will be useful in creating a structured base of typological schemes that ensures clarity and convenience of information and analytical work in the formation of the digital space of industry. It is advisable to create such a structured base within the Russian GISP system.
INFORMATION INFRASTRUCTURE OF TAX ADMINISTRATION: PROBLEMS AND DIRECTIONS OF DEVELOPMENT
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, SMIRNOVA E.E.
Published: April 2024

The article considers the elements of the information infrastructure of tax administration, their current state based on the performance indicators of the tax authorities. The results of using the information infrastructure in the implementation of the industry approach in tax control on the example of catering were analyzed. An assessment of the effectiveness of the use of software products used by the tax authorities was given based on data on federal budget expenditures. Proposals were given for the expansion of software systems used in control work to improve tax administration. The goals of writing a research work: to determine the main issues that arise when using the information infrastructure of tax administration, to highlight the directions of development. Conclusions obtained in the course of the study: options for the development of the information infrastructure of the tax administration in order to increase its efficiency are highlighted.
DEVELOPMENT OF A BINARY CLASSIFICATION MODEL BASED ON SMALL DATA USING MACHINE LEARNING METHODS
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, MIKHAYLOVA S.S. , GRINEVA N.V.
Published: April 2024

Today, solutions to the problem of binary classification using machine learning find applications in a huge number of spheres of life, such as medicine, energy, marketing, agriculture, financial analytics, etc. This is a great opportunity for companies to gain new sources of profit and improve existing processes. Therefore, new solution methods are being actively developed, existing ones are being improved, and research is being conducted on the possibility of using machine learning to solve classification problems in various fields. The study of the effectiveness of using various machine learning methods, taking into account the existing problems of small data in solving the problem of binary classification, is very relevant due to the significant preponderance of developments towards Big Data. For small data, possible problems that affect the effectiveness of the trained model have been identified, and various options for solving these problems have been proposed. To assess the impact of small data problems on the quality of the trained model, a comparative analysis of the quality metrics of models trained on different variations of data processing was carried out. It is concluded that correct work with small data requires timely elimination of such data defects as class imbalance, outliers, etc. In the course of the study, the most significant quality metrics were selected to obtain a model for analyzing medical parameters. A comparative analysis of diabetes detection models based on preprocessed small data has been carried out. For the task under consideration, the stacking model was chosen as the best option for medical use. The results of the analysis showed that machine learning is able to show high efficiency in solving real problems of binary classification.
THE STUDY OF THE GENESIS OF STATE MECHANISMS TO STIMULATE THE DEVELOPMENT OF THE REGIONAL SECTOR OF THE ECONOMY OF SMALL AND MEDIUM-SIZED BUSINESSES
Authors:   Financial University under the Government of the Russian Federation, Moscow, Russian Federation, BATTALOVA L.M. , ENIKEEV R.N. ,   Ufa University of Science and Technology, Ufa, Russian Federation
Published: April 2024

Purpose of the study. The article examines the genesis and current state of civil law mechanisms aimed at stimulating qualitative and quantitative changes in the structure of regional small businesses participating in the innovative development of the Russian economy. From a critical point of view, the evolution of domestic legislation of the business entities under consideration is analyzed, scientific and practical qualifications of the key stages of transformation of legislative initiatives in the area under study are reasonably proposed, the most significant risks characterizing external threats to the necessary dynamics of small business development are objectively studied. Conclusions. As a result of the research, the author comes to the conclusion that since a distinctive feature of the national economy is its pronounced regional character, the development of the macroeconomics of Russia is possible only if, on the one hand, the balanced and interconnected progression of its regions, on the other, the improvement of federal management processes with the aim of improving the quality and validity of the regulatory environment, capable of taking into account the specifics of both territorial and macroeconomic development of the state. This creates a certain level of requirements for the quality of government mechanisms for federal investment in regional SMB.
THE DIGITAL CODE OF RUSSIA: CURRENT STATE AND PROSPECTS
Authors:   Kutafin Moscow State Law University, Moscow, Russian Federation, BELIKOVA K.M.
Published: April 2024

The article examines the expediency and timeliness of the creation and adoption of the Digital Code of Russia in the context of the current state of scientific thought and prospects from the point of view of the importance, necessity, need for answers to the questions posed in the article for the development of society, and the need to study some approaches of foreign legal systems to the issue under study and the resolution of controversial legal and ethical questions arising as a result of the development of both new technologies and scientific and technological progress in general. The scientific novelty is due to the subject of the study and a set of legal approaches reflected in already adopted regulations and their projects (for example, the «Digital Administrative Code» of Italy and the Model Information Code for CIS member States and foreign initiatives). Among the conclusions reached by the author, the opinion that, in general, supporting the idea of this codification, we consider it necessary to pay attention to the way of construction of some of its sections and the idea as a whole, and to a number of problems that require urgent solutions.
SUSTAINABLE CORPORATE GOVERNANCE OF AMERICAN SOCIAL ENTERPRISES UNDER THE PRESSURE OF NEW TRENDS
Authors:   Gazprom Social Initiatives Foundation, Moscow, Russian Federation, PETROVA A.V.
Published: April 2024

With minimal federal regulation, state legislation and precedent in the United States, the institutional environment for social enterprises, the development of social responsibility of business and sustainable corporate governance has generally been formed. It is distinguished by active support for social initiatives of business, a minimum of administrative barriers and interference in matters of their internal management, and the presence of special legal regimes. At the same time, the economic effectiveness of sustainable corporate governance is not known; its principles are also not enshrined at the federal level, but are implemented through the charters of corporations and social entrepreneurship organizations. The type and specifics of sustainable management depend on the type of organization. They are fully implemented in the organizational and legal forms of SPC and BC. The main problem in implementing the principles of sustainable management by the owners and management of social corporations remains the search for a balance between profit and social interests, including an objective assessment of the level of achievement of the latter. This balance is achieved not by the application of corporate law, which varies from state to state, but by the application of the business judgment rule, based on precedent, which implies a high degree of discretion and the difficulty or even impossibility of an objective assessment. Sustainable corporate governance is under increasing pressure from multidirectional non-economic trends leading to socialization, greening and politicization of business to the detriment of its traditional goals. The American federal, decentralized model of legal regulation of social entrepreneurship does not correspond to the development trends of the Russian legal system, where the trends of centralization of regulation dominate. The American legal model of sustainable corporate governance is implemented mainly in large international corporations, which no longer exist in Russia, which significantly reduces the relevance of the experience.
Environmental land use conflicts and ecosystem services: a paper review
Authors: Pambudi Andi Setyo
Published: April 2024

The topic of potential conflicts related to land use involving human activities in a watershed is an important matter to be discussed. The background of this research is that conditions in mountainous watersheds, and agricultural land use cause changes in ecosystem services, with trade-offs between crop production and erosion regulation. Watershed management with an environmental concept often faces problems with different interests among stakeholders. Although several studies have initiated the mapping of land-use conflicts between human activities and conservation, the spatial assessment of land-use conflicts on environmental issues and trade-offs of ecosystem services in agricultural areas has not been fully considered. The purpose of this study is to map land use, with indicators of measuring conflicts in the value of conservation and agricultural development, through scenarios of the level of erosion hazard on agricultural land. This study provides input to decision-makers regarding watershed conservation efforts that still consider aspects of the economic needs of agricultural land. The objective of the reviewers is to understand how the concept of mapping the potential conflict of land use in the Haean watershed in South Korea can be applied in Indonesia. The methodology used is to apply the agricultural land suitability index based on various analytical criteria to estimate the spatial preferences of agricultural activities. To predict erosion, using the Revised Universal Soil Loss Equation (RUSLE) method and the classification of agricultural land in the watershed is divided into four levels of land use conflict (lowest, low, high, and highest).
The Atomic and Quantum Mechanics Achievements of the Theory of Solar System Wave Packet
Authors: Soltani Abolfazl
Published: April 2024

In the previous article we discussed about Solar System Wave Packet (SSWP). In that article, we showed that due to many reasons, such as the cleanliness of interplanetary space from other planets, the existence of chondrules and igneous rings around them in the solar system, the existence of super earths and hot Jupiters near the parent star, the existence of Titius-Bode law in the solar system, the many problems of current theories in explaining the formation of the planets of solar system and extrasolar planets, and many other reasons, we need the SSWP theory. Now it makes sense if we want to generalize our theory to the subatomic world. So, based on the theory of SSWP, we will enter into the atomic physics and achieve to a new atomic model with considerable results.
Note for the Perfect Numbers
Authors: Vega Frank
Published: April 2024

This paper tackles a longstanding problem in number theory: the infinitude of perfect numbers. A perfect number is defined as a positive integer whose sum of all its proper divisors (excluding itself) is equal to twice the number itself. While Euclid's method provides a framework for constructing even perfect numbers using Mersenne primes, the infinitude of Mersenne primes remains an open question. If there are finitely many Mersenne primes, then there would also be a finite number of even perfect numbers. In this note, showing that there are finitely many Mersenne primes, we provide a partial answer by proving that is false the infinitude of even perfect numbers. The proof utilizes elementary techniques and relies on properties of the divisor sum function (sigma function) and the inherent structure of prime numbers.