bluuebunny/crossref_metadata_2025 huggingface dataset:
The Role of Sustainable Competitiveness Indicator in Malaysian Tourism and Economic Growth
Authors: Soh Ann-Ni , Puah Chin-Hong , Mohammad Affendy Arip , Jong Meng-Chang
Published: January 2025

This paper proposes a sustainable competitiveness indicator for the state of tourism vulnerability in the Malaysian tourism market. Further investigation has also been done on the time-frequency and lead-lag relationship of the indicator with tourism development and economic growth. The resultant indicator is consisted of 12 variables, identified based on the pillars of sustainability and competitiveness to extract a common vulnerability component using a dynamic approximate factor model. The model’s accuracy rate was at a promising 92% based on the variable importance assessment using random forest algorithms. Through the implementation of bivariate wavelet coherence analysis, the empirical results indicated that the constructed indicator has a positive leading role in Malaysian tourism development and economic growth. This indicator can be embedded within an early warning system to signify vulnerabilities in the Malaysian tourism market.
Educational Social Skills: a Study on Emotional Intelligence in Higher Education
Authors: Betinelli Edileusa Bruns , Rosa Josely Cristiane , Braz André Luiz de Oliveira , Kormann Eliane , Zwierewicz Marlene , Silva Edinéia Pereira da
Published: January 2025

Objective: the research aimed to identify the level of emotional intelligence of teachers of Lato Sensu Postgraduate Courses at an HEI in the Itajaí Valley (SC).
 
Theoretical Framework: the text addresses the concept of Educational Social Skills (ESS) and Emotional Intelligence (EI), highlighting the impact of EI on teachers' performance in the classroom and in their interactions with students.
 
Method: from a methodological point of view, the research was classified as qualitative, descriptive and exploratory, using the case study method. Eleven (11) teachers working in higher education took part in the study, specifically in Lato Sensu postgraduate courses at an HEI in the Itajaí Valley (SC). One of the instruments used was the emotional quotient mapping test - EQ Map, by Cooper and Sawaf (1997), to identify the level of emotional intelligence of the teachers.
 
Results and Discussion: the results showed a high level of Emotional Intelligence in the scales relating to Work Pressures, Personal Pressures, Emotional Awareness, Emotional Awareness of Others, Intentionality, Creativity, Interpersonal Connections, Constructive Dissatisfaction, Personal Power, Relationship Quotient and Optimal Performance. On the other hand, the Compassion, Confidence Radius and General Health scales showed low levels. In general, at the time the survey was carried out, the teachers had a good level of Emotional Intelligence, indicating that they feel satisfied with their work at the institution, a fact that has a direct impact on their efficient performance with students in the classroom and, consequently, on their contribution to achieving the HEI's organizational objectives.
 
Implications of the research: the research revealed the need to maintain the development of EI within the institution, exploring the educational social skills of teachers in order to better observe interpersonal relationships in the institutional environment. This analysis could stimulate longitudinal research that follows the evolution of teachers' emotional intelligence throughout their careers.
 
Originality/Value: with the growing interest in research and studies on Emotional Intelligence, the challenges associated with Educational Social Skills (ES) and Emotional Intelligence applied to Higher Education continue to exist, representing a gap to be explored.
Analyzing IFRS 7 requirements for disclosure of information about financial risks in financial statements and analysis of disclosure practices. Part 2
Authors: PLOTNIKOV Viktor S. , PLOTNIKOVA Olesya V.
Published: January 2025

Subject. The article considers the practice of disclosing information about financial risks in the annual consolidated financial statements of the largest companies in the world and Russia, in terms of capitalization.
Objectives. The aim is to disclose information on types of financial instruments that have a significant impact on the financial activities of the organization; to reflect the nature and extent of risks faced by organization when operating in the financial market, and the impact of financial instruments on these risks.
Methods. The methodological basis of the study rests on the institutional theory of contracts, the Conceptual Framework for Financial Reporting that for the first time recognized the need to reflect contractual rights and obligations in reporting as an object of accounting and analysis, which became the theoretical basis for generating information about reporting of derivatives in financial statements when analyzing risks and minimizing them when using derivatives.
Results. We assumed that to sufficiently and adequately meet the requirements of IFRS 7 in terms of disclosure of information about risks inherent in a business, heads of any organization should carry out a number of events outlined in the article.
Conclusions. The analysis of financial risks, their nature, and the degree of influence on the financial position of the reporting organization can significantly increase the transparency of financial statements for external stakeholders, strengthen their trust in the management of the organization and, as a result, contributes to making more balanced and responsible investment decisions.
Analysis of mechanisms for reducing greenhouse gas emissions implemented in the Russian Federation and in some foreign countries
Authors: KOLESNIKOVA Anastasiya V.
Published: January 2025

Subject. The article addresses the climate policy formation as an object of scientific research that requires consideration from the perspective of its detailed synchronization with climate policies implemented in other countries.
Objectives. The study aims to review mechanisms for greenhouse gas emissions reduction in Russia and other countries of the world, identify barriers in the implementation of existing support mechanisms, and formulate proposals to eliminate them.
Methods. The study draws on scholarly papers and applied research of Russian and foreign scientists in sustainable development, environment protection and climate policy, provisions of international law, legal and methodological acts of Russia. The performed research rests on general principles of scientific approach, including systems, comparative, historical approach, acting as a basis for analysis, synthesis, generalization, classification, and systematization.
Results. The study revealed that two types of mechanisms are considered in the world practice that contribute to reducing greenhouse gas emissions, i.e. market and administrative-technical. The mechanisms for greenhouse gas emissions reduction implemented in Russia are generally consisted with those implemented worldwide.
Conclusions. Though the mechanisms implemented within the framework of Russia's climate policy and aimed at reducing greenhouse gas emissions are generally consistent with the world practice, the analysis of their implementation indicates a lack of support at the federal and regional levels.
Studying the relationship between energy footprint and economic development based on the net primary productivity model: Evidence from China and Russia
Authors: SHULIN Zhang
Published: January 2025

Subject. The article addresses energy consumption of China and Russia from 2000 to 2021.
Objectives. The purpose of the study is to investigate the energy footprint intensity and the environmental pressure of energy footprint of China and Russia, to conduct a comparative analysis of relationship between energy footprint and economic development.
Methods. The study draws on general scientific research methods.
Results. China's energy footprint is about seven times higher than Russia's one, and the difference is increasing every year. The structure of energy consumption in Russia is better than in China. The energy footprint intensity of China and Russia demonstrate a downward trend from year to year. Environmental pressure on China's energy footprint is increasing every year. Russia experiences less environmental stress and is in good environmental condition.
Conclusions. According to the gray forecasting model, China's energy footprint will show a linear growth trend from 2022 to 2030, and the environmental pressure of the energy footprint will continue to grow. Being the world's largest consumer (China) and producer (Russia) of oil and gas, their cooperation can bring mutual benefits and win-win results.
Stages of digital maturity in the modernization of water transport
Authors: KIRIL'CHUK Svetlana P. , SHEPELIN Gennadii I.
Published: January 2025

Subject. The article discusses stages of digital maturity in the modernization of water transport.
Objectives. The focus is on the identification of key factors and strategy contributing to the integration of digital technologies into the management and operation of water transport systems, exploration of current trends, the impact of digitalization on production and economic indicators, and successful examples from the practice of water transport management.
Methods. We reviewed scientific papers on the research topic, analyzed data on the digitalization of water transport, and conducted an expert assessment of industry leaders.
Results. The paper presents an overview of digital maturity stages in the modernization of water transport, recommendations for successful implementation of digital solutions in this area. Based on practical examples of successful application of digital solutions in innovative activities, practical recommendations are provided on the sequence of increasing the digital maturity of "smart" activities in water transport. We formulated recommendations for business entities seeking sustainable development in the context of total digitalization.
Conclusions. We developed a comprehensive approach to achieve digital maturity in "smart" activities, with the help of which it is possible to ensure not only sustainable functioning in a changing environment for water transport business entities, but also active development.
Investment policy in the strategizing of regional development in the neo-industrial economy
Authors: ANTIPIN Ivan A. , FROLOVA Natal'ya S.
Published: January 2025

Subject. The article addresses investment policy in regional strategic planning in the context of the neo-industrial economy.
Objectives. The purpose is to examine the processes of investment policy formation within strategic planning of regional development in the era of neo-industrial development.
Methods. The study employs the systems, institutional, methodological approaches, as well as logical, dialectical methods, and comparative analysis.
Results. We established characteristics of emerging paradigm of neo-industrial development in the Russian economy. The paper proves that the strategies of socio-economic development of regions should take into account the existing paradigm of neo-industrial development. Investment policy should be one of the most important components in the implementation of the concept of neo-industrial development of Russia and its regions.
Conclusions. In the context of neo-industrial development, fundamental changes are needed in the management of regional development. Strategic planning and management of regional development require adjustments to current trends in global development, changing environmental conditions, including those in neo-industrial development. Strategic planning and strategic management must be considered in close relationship with investment policy, which is confirmed by global trends in its formation. Investment policy contributes to the implementation of the set directions in regional strategizing.
The study of applicants' preferences in the context of the modern labor market and the education system desynchronization
Authors: ABAEV Alan L. , SEKERIN Vladimir D. , NASYROVA Elena V. , BOLDYREV Mikhail V. , SHARAFUTDINOV Ruslan F.
Published: January 2025

Subject. The article considers the effectiveness of interaction between universities and applicants.
Objectives. The aim is to investigate applicants’ preferences of in the context of desynchronization of the modern labor market and the education market.
Methods. As part of the study, we conducted 46 personal interviews and interviewed 1,562 respondents, using an online questionnaire (51.9% from Moscow, 22.2% from the Moscow Oblast, 21.8% from Russian regions, 2.8% from CIS countries, 1.3% from other countries).
Results. The study of applicants' preferences when choosing a university is an integral part of analyzing the effectiveness of educational institutions and training areas. The factors that influence the choice of a university by an applicant are correlated with the current and projected in the near future requirements of the labor market. Based on the study of current educational practices and preferences of applicants, we formulated recommendations aimed at transforming educational processes in universities, increasing the effectiveness of educational services promotion programs during the admission campaign.
Conclusions. The emergence of programs or individual faculties using the model of free education with the application of an individual educational trajectory is an effective tool for detaching from competitors and, in the future, will help such universities move from the category of universities of mass professions to the category of regional level universities or research universities.
International accounting as a research area: Searching for statutory guidelines
Authors: AKSENT'EV Andrei A.
Published: January 2025

Subject. This article discusses the issues related to international accountingas an area of scientific research.
Objectives. The article aims to show that at present there is no clear understanding of what international accounting is and why research in this area is needed.
Methods. The research is speculative. For the study, I used the dialectical method of scientific knowledge, the method of collecting theoretical and regulatory information, the method of formalization, as well as analysis, synthesis, observation, and comparison.
Results. The article defines two visions for the object of international accounting, namely narrow and broad ones, as well as the subject of international accounting. It presents two formalized models: the relationship between the quality of accounting information and the efficiency of capital allocation, and the relationship between the quality of accounting information and the average market value of capital. Using these models as an example, the article shows that modern research does not provide any convincing arguments in favor of the fact that the use of IFRS leads to an improvement in the efficiency of capital allocation in the economy. This problem is a promising area for the development of the research topic.
Conclusions and Relevance. In the second half of the 20th century and up to the present, a narrow view dominates in the works in the field of international accounting. The broad view does not resonate among researchers, and therefore many important questions remain unanswered. In many works of researchers, econometrics tools are used to prove (disprove) a particular hypothesis, but there are no regulatory guidelines. The results of the work may be useful to a limited group of specialists in the field of international accounting, institutional theory and financial theory.
Technological collaborations as a mechanism for innovative retail development
Authors: SEKERIN Vladimir D. , TIMAEV Roman I.
Published: January 2025

Subject. This article considers the current trends in the development of retail.
Objectives. The article aims to search for methods to reduce financial, material and time costs for the implementation of innovative projects.
Methods. For the study, we used a systems analysis.
Results. The article substantiates the need for the use of technological collaborations in the field of retail.
Conclusions. Considering the limited access to foreign innovative technologies, the formation of various kinds of alliances in the retail sector can significantly accelerate the development, implementation and promotion of new products, technologies, and intellectual property.
Managing innovations in the field of technology and equipment for the oil and gas complex
Authors: LEBEDEVA Nataliya E.
Published: January 2025

Subject. The article deals with technological progress in the oil and gas industry, the impact of international sanctions on Russia's energy security.
Objectives. The study aims to assess development prospects for new methods of oil production, analyze measures to ensure environmental sustainability of industry enterprises, and regulatory and economic restrictions.
Methods. The study rests on comparative and statistical analysis.
Results. Processes like drilling and hydraulic fracturing increase productivity. However, sanctions have an integrated effect on project development schedules and overall competitiveness of the industry. Market volatility caused by changes in oil prices and demand patterns around the world can significantly exacerbate uncertainty.
Conclusions. Digitalization cuts costs, improves plant safety, and reduces environmental impact. Diversification of markets, reduction of dependence on foreign technologies and financing, development of alternative energy sources enable to increase the industry’s stability in difficult geopolitical conditions.
Current problems of trade cooperation between Russia and Egypt
Authors: SIDOROV Aleksei A. , BOLDINA Varvara S.
Published: January 2025

Subject. This article discusses the search for new markets for Russian-made products and the diversification of exports and imports.
Objectives. The article aims to assess the prospects for economic cooperation between Russia and Egypt in the context of geopolitical tensions.
Methods. For the study, we used the methods of analysis.
Results. Based on the analysis of trade cooperation between Russia and Egypt over the past few years, the article assesses the structure of Russian-Egyptian trade and the possibilities of reorientation and increase in its volume as low.
Conclusions. Tariff and non-tariff barriers in the Egyptian market are the main problem for increasing Russian exports. The prospects for the development of trade relations between Russia and Egypt are associated with actions to eliminate or minimize these barriers. The conclusion of a free trade agreement is a priority measure.
Training system for military financiers: Development problems
Authors: ANUREEV Sergei V.
Published: January 2025

Subject. The article addresses the role of military financiers in the structure of the armed forces.
Objectives. The study aims to analyze the need for training of military financiers and determine the composition of academic disciplines in the relevant specialty.
Methods. The study rests on the comparative analysis.
Results. The paper established that the programs of leading civilian financial and economic universities need to be strengthened with a military component. It is advisable to revive the Yaroslavl Higher Military and Finance School.
Conclusions. Military financiers should understand the realities of modern armed hostilities, keep prompt and reliable records. It is necessary to use the scientific potential of leading financial and economic universities for the purposes of the special military operation.
Localization of production under high foreign economic risks
Authors: BOGDANOVA Anna L.
Published: January 2025

Subject. This article discusses the issues of ensuring economic security.
Objectives. The article aims to analyze the ratio of efficiency and safety in the conditions of localization of production.
Methods. For the study, I used the general scientific research methods.
Results. The article differentiates supply chains restructuring both by industry and country. It finds that production gets localized under the influence of increased volatility of the economic environment and due to the development of technologies.
Conclusions. When analyzing the localization of production, it is necessary to take into account its long-term impact on the development of the economy and its future competitiveness.
Quality of life of the population in the system of national interests
Authors: ERMAKOVA Eka R.
Published: January 2025

Subject. The article addresses the growing socioeconomic inequality of the population, deterioration of demographic and environmental situation in many regions of Russia.
Objectives. The study aims at analyzing the theoretical and methodological foundations to assess the quality of life of the population, developing recommendations to reduce the level of identified threats to economic security.
Methods. The study employs general scientific methods (comparison, analogy) and special research methods (horizontal and vertical analysis, indicative method, method of normalized estimates, etc).
Results. When assessing the quality of life of the population, it is necessary to take into account, first of all, such indicators as the level of health of the population, compliance of consumption of various food products with standards, natural increase, healthy life expectancy, housing affordability, employment, level of education, and environmental safety.
Conclusions. Implementation of energy saving principles in production and business processes increases productivity, makes regions (towns) more attractive for investment and competitive. Improving the quality of life is ensured through the integration of modern IT technologies into the infrastructure of settlements, which allows the management system to automatically find optimal solutions and leads to significant resource savings.
Methodological approaches to exploring the resilience of the regional economic system as a basis for sustainable development management in modern realities
Authors: VASIN Aleksandr S. , VOROPAEVA Dar’ya A.
Published: January 2025

Subject. The article addresses features of the regional economic system functioning in conditions of instability.
Objectives. The purpose is to develop organizational and economic mechanism for managing the sustainable development of the region.
Methods. We employed general scientific research methods.
Results. We propose a three-dimensional model of sustainable development management of the region, which considers natural, industrial, financial, demographic factors affecting the economic system, economic development strategies, and the legislative framework.
Conclusions. Practical application of our own developments in the assessment of stability of the regional economic system will ensure the sustainability of the country's economy as a whole.
Cluster approach potential in the progress of the territory of advanced social and economic development
Authors: GAMIDULLAEVA Leila A. , SHEVCHENKO Dmitrii N.
Published: January 2025

Subject. The article discusses the problem of clustering the economy, formation of growth points.
Objectives. The study aims to underpin the advantages of cluster approach to realizing the potential of territories of advanced socioeconomic development.
Methods. The study employs methods of logical and statistical analysis.
Results. The cluster policy to support territories of advanced social and economic development demonstrates its effectiveness. We developed recommendations for the creation of economic clusters in the Penza Oblast.
Conclusions. The findings can be used to devise measures to stimulate the economic growth in the regions of Russia.
Conceptual provisions on improving the quality of customs services based on enhancing the business processes of end-to-end customs control over imported goods under digital traceability
Authors: VALIEV Faridun N.
Published: January 2025

Subject. The article discusses the development of management decision-making systems, optimization of activities of customs authorities.
Objectives. The aim is to devise a system of requirements for business processes implementation in the customs control given the introduction of digital technologies. Methods. The study draws on general scientific research methods.
Results. Customs services should be provided to a specific consumer in a timely manner and mainly in electronic form, and comprehensive information about the result recorded in the information system of the unified departmental digital platform, should be available to interested parties.
Conclusions. Actions are needed to coordinate and develop digital traceability systems at the supranational, national (interdepartmental), intradepartmental levels, to expand the range of goods subject to traceability.
THE ROLE OF ANTI-VEGF THERAPY IN IMPROVING THE EFFICACY OF SURGICAL TREATMENT OF SECONDARY NEOVASCULAR GLAUCOMA
Authors: Sydorchuk Uliana , Novytskyy Ihor
Published: January 2025

Neovascular glaucoma (NVG) is a refractory glaucoma secondary to retinal ischemic diseases.
Aim. To investigate the fluctuation of vascular endothelial growth factor concentration after intravitreal ranibizumab injections and to evaluate the effect of anti-VEGF therapy on the outcome of surgical treatment of NVG.
Materials and Methods. The study included 25 patients (25 eyes) with NVG who underwent surgery due to IOP non-compensation (more than 26 mm Hg) on maximal hypotensive therapy. In 21 cases the cause of IOP was proliferative diabetic retinopathy (PDR), in 4 cases it was central retinal vein occlusion (CRVO) or its branches. The control group consisted of 20 patients (20 eyes) with PDR, but without NVG. Patients underwent trabeculectomy (TE) according to our modification in 18 cases or implantation of the Ex-PRESS mini-shunt in 7 cases. Lucentis was injected intravitreally at a dose of 0.5 mg 5-7 days before surgery. Aqueous humour samples were taken during surgery to determine the concentration of VEGF.
Results and Discussion.. All patients showed a reduction of neovascularisation 3-5 days after ranibizumab injections. Pre-treatment intraocular pressure was 30.2±5.8 mm Hg in all patients and 17.3±3.8 mm Hg after 7 days. The number of antiglaucoma medications before and after surgery decreased by 66.7%. Mean visual acuity before surgery was 0.94±0.48 LogMar and 0.88±0.56 LogMar after surgery. Before treatment, the concentration of VEGF in the anterior chamber fluid ranged from 336.61±270.33 pg/ml to 47.86±12.27 pg/ml - 5-7 days after injection. In the control group, it averaged 54.78±18.56 pg/ml on days 5-7 after injection.
Conclusions. Anti-VEGF therapy and filtering surgery can reduce IOP by 47.2%, achieve IOP compensation in 96.8% of cases, reduce the number of antiglaucoma medications by 66.7% and prevent a significant decrease in visual acuity in 88.2% of cases.
MORPHOLOGICAL AND RADIOLOGICAL ASPECTS OF POST-TRAUMATIC REMODELING OF THE MANDIBULAR BONE AFTER TRANSPLANTATION OF NATURAL COLLAGEN WITH LINCOMYCIN
Authors: Chelpanova Ilona
Published: January 2025

This article presents the research results of the morphological, radiological, and lectin-histochemical characteristics of bone-ceramic regenerate after the transplantation of natural collagen combined with lincomycin into an experimental defect in the rabbit mandible.
Aim. To study in an experiment the dynamics of changes in the mandible bone after its traumatic injury with subsequent replacement of the defect with an osteoplastic material based on natural collagen in combination with lincomycin.
Materials and Methods. Experiments were conducted on 45 male rabbits aged 6-7 months, weighing 2.5-3.0 kg. 20 animals constituted the control group, and 20 the experimental group. Another 5 intact animals were used to study the normal structure of the bone tissue of the studied area of the mandible. The control group included animals with a bone tissue defect that healed under a blood clot. The experimental group consisted of rabbits where the bone defect was filled with natural collagen, with simultaneous intramuscular injection of Lincomycin at a dose of 12 mg/kg of animal weight once daily for 6 days (Col-C-L). Post-traumatic bone tissue status within the defect area was monitored for 84 days. The following methods were employed: bone defect modeling, assessment of jaw macrostructure, radiographic examination, radiovisiography, examination of bone sections under a microscope, and lectin-histochemical analysis of decalcified bone sections.
Results and Discussion. Examination of the macrostructure of the experimental bone defect in the rabbit mandible after implantation of natural collagen in combination with lincomycin revealed numerous regenerative changes that occurred after the injury and correlated with the data of radiographic and radiovisiographic examinations. Microscopic examination of bone sections allowed us to establish the phased nature of the dynamics of the studied regenerative changes and the composition of the regenerate.
Conclusions. It was established that in the experimental group of animals where defect repair was performed using Col-C osteoplastic material with simultaneous prophylactic administration of Lincomycin in the early stages of the experiment, it positively affected the course of the inflammatory process, followed by the formation of new bone tissue.
Paid Work and Care Work in Mexico City: the Effects of the Covid-19 Pandemic on Social Inequalities and Conviviality
Authors: Flamand Laura , Alba Vega Carlos , Aparicio López Rosario , Serna Erick
Published: January 2025

We analyzed the effects of the Covid-19 pandemic on social inequalities and conviviality practices in paid work and care work areas in Mexico City. Through an original research and focus groups, we studied the differences between men and women and between women with different characteristics. Our main contribution is that the pandemic has deepened the gaps between groups of women to the detriment of disadvantaged ones who tend to have fewer material and symbolic resources to (re)negotiate convivial configurations inside and outside the home.
Impact of the Covid-19 Crisis on Employment and Income in Paraguayan Border Cities
Authors: Rojas Raquel , Lachi Marcello , Bruno Sebastián
Published: January 2025

This paper analyzes the impact of the Covid-19 pandemic on three Paraguayan cities: Asunción, Ciudad del Este and Encarnación. Through qualitative and quantitative data, we have identified different socioeconomic impacts according to factors such as gender, social class and labor market participation. The results also show that negative impacts have been exacerbated in areas where populations have historically relied on cross-border relations.
السكن الآيل للسقوط وآثاره على الوضعية الصحية للسكان وسياسات تدبيره: حالة مدينة سلا العتيقة بالمغرب
Authors: عربي نزهة , أنفلوس محمد
Published: January 2025

يطرح السكن الآيل للسقوط بالمغرب تحديات عديدة على المستوى العمراني والاجتماعي والبيئي، وأيضا على مستوى الوضعية الصحية، لاسيما بالمدينة العتيقة لسلا. بذلك تهدف هذه الدراسة إلى الوقوف على خصائص السكن الآيل للسقوط وعوامل تدهوره بالمدينة العتيقة لسلا، وتقييم الوضعية الصحية لساكنته، مع تسليط الضوء على سياسات الدولة لتدبير ومعالجة ومكافحة هذا النوع من السكن بالمجال المدروس. وذلك باستثمار المعطيات المحصل عليها من الدراسة الميدانية التي قمنا بها، على مستوى عمالة سلا والمستشفى الإقليمي الأمير مولاي عبد الله بسلا. وقد توصلت الدراسة إلى أن هذا النوع من السكن يرتبط بعوامل متداخلة أبرزها تزايد عدد السكان بالمدينة، وهشاشة الأوضاع السوسيو اقتصادية للسكان، وتقادم البنايات، إلى جانب محدودية فعالية السياسات السكنية المتعاقبة. لذلك تشكل هذه الظاهرة موضوع انشغال دائم للسلطات العمومية من أجل إيجاد حلول ناجعة وفعالة لمعالجة وضعيتها وضمان سلامة قاطني هذا النوع من السكن، وتوفير سكن يستجيب لشروط الصحة العامة. بذلك، فظاهرة السكن الآيل للسقوط تتطلب استجابة سريعة من خلال بعض التوصيات تشمل تقييم حالة المباني وتطوير خطط تأهيل باستخدام تقنيات بناء مستدامة، مع توفير التمويل المناسب والدعم للأسر المتضررة، وتحديث التشريعات لضمان تطبيق المعايير الهندسية الحديثة. كما يجب تعزيز التعاون مع المنظمات والهيئات المختلفة لزيادة الوعي المجتمعي وتنفيذ مشاريع مشتركة لتحسين الظروف السكنية.
تقييم الملائمة المكانية للمدارس الابتدائية للبنين في مدينة مكة المكرمة باستخدام نظم المعلومات الجغرافية متعددة المعايير
Authors: يماني عبدالله عبدالعزيز , السلمي مرشد معيوض
Published: January 2025

يهدف البحث لنمذجة ملاءمة مدينة مكة المكرمة للمدارس الابتدائية بنين وتقييم مدى ملاءمة مواقع هذه المدارس. واعتمد البحث على نمذجة خمسة عشرة متغير مكاني تندرج ستة منها ضمن مخاطر البيئة الطبيعية كالانحدار والمياه وتلوث الهواء. وتسعة منها ضمن متغيرات الجدوى ككثافة السكان، وسهولة الوصول كالبعد من المساكن والطرق، ومخاطر البيئة البشرية كالبعد من الطرق وخطوط الكهرباء ومحطات الوقود والطاقة والمصانع ومراكز بيع الغاز. وتدرجت منهجية البحث من جمع بيانات المدارس والمعايير التي تحدد انسب المناطق الملائمة للمدارس في المدينة، وتمت معالجة هذه البيانات تمهيدا لاشتقاق خرائط تبين ملاءمة كل معيار، وقيمت ملاءمة المدارس لكل منها، وصولا لتحديد الأهمية النسبية لمعايير النموذج باستخدام عملية التحليل الهرمي  (AHP)، اعقبها استخدام القرار متعدد المعايير (MCDA) لدمج مختلف طبقات المعايير  حسب اهميتها النسبية، وذلك باستخدام الحاسبة الخلوية (Raster Calculator) في نظم المعلومات الجغرافية، للحصول على خريطة تبين ملاءمة مدينة مكة المكرمة للمدارس طبقا لمختلف المعايير. وعليه فقد توصلت نتائج هذا البحث لتراوح ملاءمة مدينة مكة المكرمة للمدارس الابتدائية بنين بين 45.6% جنوب وجنوب غرب وشمال مدينة مكة المكرمة، إلى 97.2% في المناطق الأكثر ملاءمة للمدارس شمال وشمال شرق وجنوب شرق ووسط غرب مدينة مكة المكرمة، بمتوسط مكاني لنسبة الملاءمة على مستوى المدينة 76.8%. وأكدت نتائج تقييم ملاءمة مدارس البنين الابتدائية بمدينة مكة تركز 104 مدرسة، بنسبة 65.83% من إجمالي عددها في المناطق ذات الملاءمة المعتدلة بين 70 - 80%، ونحو 43 مدرسة ابتدائية بنسبة 27.22% من إجمالي المدارس الابتدائية للبنين، بنسبة تتراوح بين 80 - 90% بمناطق عالية الملاءمة.
Decoding Regioselectivity in Cu(I)-Catalyzed Borylation of Al-kynes: Insights from Machine Learning and Artificial Intelligence
Authors: Marcos-Ayuso Guillermo , Quesada David , Fernandez Moyano Sara , Lendinez Sanchez Carlos , Mauleon Perez Pablo , Gómez Arrayás Ramón
Published: January 2025

Vinyl boronates are highly valuable intermediates in chemical synthesis, extensively used in C‒C bond-forming reactions such as catalytic cross-coupling. Transition metal-catalyzed hydroboration of alkynes has emerged as a key method for synthesizing these building blocks. While classical approaches rely on noble metals like rhodium and iridium, copper-catalyzed hydroboration offers a sustainable and cost-effective alternative. This strategy utilizes bench-stable reagents under mild conditions, delivering highly stereoselective trans-vinylboronates. However, predicting regioselectivity re-mains a challenge due to the complex interplay of ligand structures, alkyne substitution patterns, and reaction conditions. To address this, we employed a combination of experimental data, high-throughput computational calculations, and ma-chine learning (ML) to develop predictive models for regioselectivity. Ligand and catalyst descriptors were derived from DFT calculations and literature databases, forming a robust dataset used to train ML algorithms. Further optimization proved effective in guiding experimental efforts by identifying promising ligands and improving hydroboration yields. This workflow integrates experimental and computational tools to achieve a stereocontrolled synthesis of substituted alkenyl boronates from alkynes. As a case study, we demonstrate the successful application of ML-guided optimization, reducing copper catalyst loading while improving yields and regioselectivity.
Gated CO2 permeation across dynamic graphene pores
Authors: Bondaz Luc , Ronghe Anshaj , Ayappa K. Ganapathy , Agrawal Kumar Varoon
Published: January 2025

Oxidation of graphene has been successfully used to incorporate semiquinone (C=O)-functionalized Å-scale pores, yielding attractive carbon capture performance. However, the true potential of such pores has remained unclear due to a lack of dedicated mechanistic studies. Herein, using molecular dynamics (MD) simulations, we show that C=O displays a remarkable molecular-interaction-dependent dynamic motion, leading to a distribution in PLD comparable to the size differences between CO2, O2, and N2. Dynamic open and closed pore states are observed in small pores, making impermeable pores CO2-permeable. The strong molecular interaction eliminates effusive transport, resulting in selective gating of CO2 from O2 and N2, even from large PLD pores expected to be nonselective. Finally, transition-state-theory calculations validated against MD simulations reveal the immense potential of porous graphene for carbon capture beyond the state-of-the-art membranes. These insights will inspire improved graphene membrane design, pushing the carbon capture frontier.
Unlocking A New Biological Interface of Chiral Supramolecular Helical Polymers
Authors: Alcalde Ordóñez Ana , Sarmiento Fuentes Axel , Gómez González Jacobo , Núñez Martínez Manuel , Fernández Míguez Manuel , Rodríguez Riego Rafael , Freire Iribarne Félix , Vázquez Sentís M. Eugenio , Vázquez López Miguel
Published: January 2025

Supramolecular helical polymers and helicates are two well-known and structurally different families of materials that share the same chiral axial motif, the helix. In this work, we describe how it is possible to design a molecule capable of folding in water into either of these two supramolecular entities. To do that we prepared a C3 symmetric benzene-1,3,5-triyltrimethanamine (BTMA) core conjugated to three peptide sequences, i.e. H-Arg-βAla-Bpy-βAla-Bpy-NH2 (BTMA-1). This molecule comprises all the structural requirements to self-assembly in water either into a chiral supramolecular helical polymer or into a chiral discrete helicate in the absence/presence of CoII ions in the aqueous media. We demonstrated that the discrete CoII peptide helicate folded can recognize DNA three-way junctions with high affinity and selectivity against canonical DNA and, moreover, that this recognition process can be operated from both the preformed discrete chiral peptide helicate and the chiral supramolecular helical polymer. Finally, we also proved that the labile CoII peptide helicate can be oxidized in situ in water to generate the corresponding kinetically inert CoIII derivative, which also possess selective 3WJ recognition capabilities. This study opens a new scenario in the biological applications of chiral supramolecular helical polymers, demonstrating that can be maintained inactively dispersed in water with time and further transformed into discrete bioactive molecules by an external stimulus.
A coumarin-30-based method for identification of tubulin ligands with diverse binding sites
Authors: Anisimov Mikhail N. , Boichenko Maksim A. , Sivachev Anton A. , Romanov Alexey N. , Lifshits Ilya A. , Janibekova Marina , Mustyatsa Vadim V. , Borzunova Julia N. , Plodukhin Andrey Yu. , Shorokhov Vitaly V. , Tafeenko Victor A. , Andreev Ivan A. , Ratmanova Nina K. , Zhokhov Sergey S. , Kechko Olga I. , Makarov Alexander A. , Mitkevich Vladimir A. , Vorobjev Ivan A. , Trushkov Igor V. , Ivanova Olga A. , Gudimchuk Nikita B.
Published: January 2025

Tubulins are among the most successful targets for cancer chemotherapy. However, the emergence of drug resistance stimulates the continuous search for novel chemotherapeutics. Here, we discover that coumarin-30, a widely available laser dye, binds to the colchicine site of tubulin and inhibits microtubule dynamics and cancer cell division at submicromolar concentrations. By combining coumarin-30 as a fluorescent probe with the microscale thermophoresis approach, we develop a versatile assay for detecting tubulin–ligand interactions and simultaneously sorting ligands into binders of the colchicine site versus other protein pockets. The assay’s performance is demonstrated on a wide panel of compounds. Using this methodology, we identify several potent tubulin polymerization inhibitors and determine their binding sites. The results are verified with studies of microtubule dynamics in vitro and the cell cycle in cancer cell culture. Thus, the coumarin-30-based assay is a fast, accurate, and cost-effective method for characterizing tubulin ligands with diverse binding pockets.
Reduction by Oxidation: Selective Hydrodehalogenation of Aryl Halides by Mediated Oxalate Oxidation
Authors: White Henry , Beeler Joshua , Walkingshaw Rune , Hamud Safiya
Published: January 2025

Electroorganic reduction reactions are canonically carried out at a cathode at which a significant negative potential is applied. Specifically, aryl bromides and chlorides undergo heterogeneous reduction in organic solvents at potentials more negative than –2 V vs E0’ for the Fc/Fc+ couple (Fc = ferrocene). To decrease the overpotential for reduction reactions, electrocatalysis strategies are often employed. Here, we present an electrochemical method to reduce aryl bromides and chlorides that is initiated by an oxidation reaction at very mild potentials (~ 0 V vs Fc/Fc+). Specifically, electrochemical oxidation of an outer-sphere redox mediator, 1,1-dimethylferrocene, in dry N,N-dimethylformamide (DMF) containing oxalate (C2O42–), results in the homogeneous one-electron oxidation of C2O42–. The resulting C2O4•– decomposes in ~1 µs to release the carbon dioxide radical anion (CO2•–), a potent reductant that is oxidized to CO2 at –2.68 V vs Fc/Fc+. In this way, an oxidation reaction at very low electrode potentials enables the homogeneous reduction of aryl bromides and chlorides, which are otherwise directly reduced at very negative potentials. Using this method, selective hydrodehalogenations of electron-deficient aryl bromides and chlorides are carried out at a reticulated vitreous carbon anode with up to quantitative conversion yields. Cyclic voltammetry and finite difference simulations are used to characterize the hydrodehalogenation of 4-bromobenzonitrile via C2O42– oxidation. Additionally, we show that the efficiency of hydrodehalogenation can be tuned by deliberate additions of water to the DMF solutions, leading to a substantial improvement in overall conversion yields without interference from water or proton reduction.
Photochemistry of Hypervalent Iodo-azide Derivatives
Authors: Gupta Nikita , Jhu Haoran , O'Shea Joseph , Ayitou A. Jean-Luc , Hemley Russell J. , Driver Tom G. , Glusac Ksenija
Published: January 2025

The photochemical properties and reaction mechanisms were studied for a series of hypervalent iodo-azide compounds (R-IN₃), with substituents (-CH₃, -H, -CF₃) modulating electronic density in the phenyl ring. With the help of UV irradiation, ultrafast time-resolved spectroscopy, and density functional theory (DFT) calculations, we elucidate the mechanisms of azide radical (N₃•) release and its subsequent reactivity. UV/Vis spectroscopy reveals that the photo-conversion rates follow the trend CH₃ > H > CF₃, aligning with DFT-calculated ΔG values for ring-opening transitions. Homolytic cleavage of the I-N bond is identified as the dominant pathway for N₃• generation, occurring within 400 ps. The released azide radical reacts with the solvent, and the iodo radical RIC• undergoes an uphill ring opening reaction controlling the rate of the reaction and subsequent downhill hydrogen atom abstraction from the solvent, helping to form R-I-COOH, as validated by NMR and IR spectroscopy. The study also highlights the role of substituents in influencing reaction kinetics and intermediate stability, with electron-donating groups accelerating N₃• release. This work bridges experimental observations with computational predictions, offering a foundation for future advancements in azide-based reactions and materials.
Resolução de Problemas em tempos do Movimento da Matemática Moderna: um estudo a partir das obras de Manoel Jairo Bezerra e Ary Quintella
Authors: Domingues Jonathan Machado
Published: January 2025

Este texto tem o objetivo de investigar a presença da resolução de problemas em tempos do ideário da Matemática Moderna a partir das produções de Ary Quintella e Manoel Jairo Bezerra. Para a elaboração dessa narrativa histórica, restringiu-se a dois livros de ensino, a saber: Iniciando a Matemática Moderna - vol. 1 e Iniciando a Matemática Moderna - vol. 2. Justifica-se a escolha dessas duas materialidades em virtude de se encontrarem em diálogo com os currículos produzidos pela Secretaria de Educação do Estado da Guanabara. Buscar-se-á responder à seguinte questão: Como a resolução de problemas se faz presente nos livros de ensino: Iniciando a Matemática Moderna vol. 1 e vol. 2? A pesquisa, bibliográfica e documental tem, como referencial teórico-metodológico, a utilização dos seguintes conceitos: saberes a ensinar e saberes para ensinar. Em linhas de síntese, a partir dos professores Ary Quintella e Manoel Jairo Bezerra, defende-se que a resolução de problemas em tempos do ideário do Movimento da Matemática Moderna foi um saber para ensinar com grande utilização nos conteúdos direcionados para as operações matemáticas.
Teoria das Situações Didáticas aplicada ao processo do ensino-aprendizagem das equações: uma abordagem da resolução das equações do 1º grau inserida no contexto das situações didáticas
Authors: Sátiro de Oliveira Luiz Renan , Vieira Alves Francisco Régis , Moreira de Alencar Júnio
Published: January 2025

A presente pesquisa se consubstancia em uma investigação qualitativa realizada no âmbito da sala de aula. A proposta visa investigar como a aplicação da Teoria das Situações Didáticas pode facilitar o ensino de equações polinomiais do 1º grau, de modo que a construção do conceito de equação e o processo de resolução da mesma sejam consolidados sem que necessariamente de início o aluno se defronte com cálculos. Para isso, utilizamos a Teoria das Situações Didáticas, teoria de ensino desenvolvida na França por Brousseau, na década de 70. Essa teoria consiste em um modelo teórico de ensino, estruturado a partir de uma situação didática que, por sua vez, proporciona um meio (milieu) que fornece condições para a aprendizagem do estudante, a partir da construção do conhecimento de forma autônoma. Para a elaboração da pesquisa foi construído um jogo, denominado tabuleiro minado que serviu como objeto de interação dos aprendizes. Os resultados dessa pesquisa demonstraram que ao atravessarem as fases da teoria (ação, formulação, validação), os estudantes tiveram a oportunidade de resolver várias equações a partir da elucidação de cada desafio imposto pelo jogo, uma vez que cada movimentação das peças correspondia a um passo na resolução das equações. Nessa perspectiva, o processo de resolução das equações e o seu conceito é construído a partir da percepção, intuição e raciocínio dos estudantes sendo viabilizada principalmente pela recorrência dos seus conhecimentos prévios.
Inclusão, Discalculia e formação continuada colaborativa
Authors: Cordeiro Cintia Aparecida Bodnar , Tardo Jaquelinne
Published: January 2025

O presente estudo tem por objetivo contribuir na aprendizagem de estudantes que apresentam a Discalculia do Desenvolvimento através de curso de formação continuada colaborativa, tendo como questão norteadora: Como a formação continuada colaborativa entre pesquisador e docentes do ensino regular pode contribuir no ensino e aprendizagem de alunos com a Discalculia do Desenvolvimento. Para tanto, a pesquisa se constituiu de uma formação com dois docentes de Matemática que atuam em escola pública da educação básica, no município de Porto União-SC, em que um estudante apresenta Discalculia do Desenvolvimento. Esta formação teve o intuito de compreender melhor o fenômeno e ao mesmo tempo, em uma perspectiva colaborativa buscar melhores condições de trabalho pedagógico e de inclusão. Este estudo apontou que existem poucas produções científicas que tratam do tema Formação Continuada e Discalculia e que a formação realizada proporcionou aos docentes envolvidos, reflexões, trocas de experiências, saberes e materiais de apoio pedagógicos. Verificou-se também, que estudos nessa área poderão contribuir muito para a identificação e a inclusão mais efetiva do estudante que apresentam o transtorno da Discalculia do Desenvolvimento.