bluuebunny/crossref_metadata_2025 huggingface dataset:
Influencia del Tipo de Alcalinizante Sobre el Proceso de Estabilización Química del Agua Tratada en Plantas de Tratamiento Convencional
Authors: Pérez-Vidal Andrea , Gutiérrez-Zapata Héctor Mario , Delgado-Cabrera Luis Germán , Vidal-Guerrero Alex Javier , Ramírez-Medina Lina María , Porras-Castro Christian Felipe , Escobar-Rivera Juan Carlos , Ospina-Rodríguez Juliana , Gutierrez-Marín Juan Pablo , Torres-Lozada Patricia
Published: January 2025

Los bajos niveles de alcalinidad en las fuentes de abastecimiento superficial, aunado al uso de coagulantes y desinfectantes en el tratamiento convencional del agua para consumo humano, que en general consumen alcalinidad y reducen el pH, hacen necesario realizar ajustes en la calidad del agua tratada con el fin de garantizar su estabilización química y prevenir contaminación secundaria en el sistema de distribución de agua potable (SDA) por problemas de corrosión o incrustaciones. En este estudio se revisó la literatura sobre características de diferentes alcalinizantes y posteriormente se evaluó mediante ensayos de pruebas de jarras la estabilización química del agua, previamente desinfectada, de una planta de tratamiento de agua potable – PTAP convencional abastecida con agua cruda del río Cauca; se evaluaron dos condiciones de calidad de agua, previamente tratada y desinfectada, con pH inicial de 5,60 y 3,98 unidades respectivamente (asociadas a agua cruda con turbiedad de 30 y 200 UNT, respectivamente). Se evaluaron cinco alternativas: tres de alcalinización simple (Ca(OH)2, NaOH, Na2CO3) y dos de doble alcalinización (Ca(OH)2+NaOH y Ca(OH)2+Na2CO3). En la doble alcalinización se dosificó Ca(OH)2 hasta alcanzar un pH cercano a 6,5-7,0 y posteriormente se adicionó NaOH o Na2CO3. En todos los casos se evaluaron valores de pH entre 7,04-8,96, y finalmente se determinaron los índices de agresividad (IA) y de saturación de Langelier (ISL). Se identificaron diferentes alternativas de alcalinizantes, cada una con ventajas y limitaciones y cuya selección dependerá, además de sus características químicas y la calidad del agua, de aspectos como costos, facilidad de adquisición, preparación y dosificación, tipo de materiales del SDA, entre otros. La evaluación experimental mostró que, tanto Ca(OH)2 como la doble alcalinización Ca(OH)2+Na2CO3, resultan viables para la estabilización química del agua analizada, lográndose aumentar la alcalinidad y la capacidad amortiguadora del agua, que favorece que el pH sea más estable en el SDA. Se destaca que la eficacia del Ca(OH)2 dependerá del contenido de CaO (>90%) y de una adecuada homogenización de la solución durante su dosificación. El ajuste del pH debe ser del orden de 8,7 a 8,9 para reducir la tendencia corrosiva del agua y permitiendo alcanzar valores cercanos a 12 y 0 de los índices IA e ISL respectivamente.
Modernización del Sistema de Diagnóstico Automático de Eventos en Líneas de Transmisión y Subtransmisión de Energía Eléctrica
Authors: Álvarez-Osorio David , Arenas-Crespo Oswaldo , Arregocés-Guerra Paulina , Rodríguez Suárez Juan Carlos , Tobar-Rosero Oscar A. , Zapata-Madrigal Germán D.
Published: January 2025

En los sistemas eléctricos es fundamental contar con un correcto esquema de protección, en aras de garantizar estabilidad, seguridad y confiabilidad para los usuarios finales. Es así como al momento de ocurrencia de un evento en el Sistema de Transmisión de Energía se genera gran cantidad de información proveniente de los sistemas de control, relés de protección y registradores de fallas, que debe ser analizada en corto tiempo para la definición de acciones correctivas y la declaración de disponibilidad de los activos comprometidos en el evento. Contar con tiempos de respuesta adecuados para dichos procesos, le permite a una empresa tomar acciones efectivas y oportunas ante múltiples contingencias. Aquí juega un papel fundamental el diagnóstico automático de las fallas como una herramienta apoyada en tecnologías de inteligencia artificial (IA) que permiten tener tiempos de respuesta considerablemente bajos en comparación con los análisis operativos convencionales. En este documento se expone el desarrollo de una herramienta como perfeccionamiento de un aplicativo inicial para diagnóstico de eventos en líneas de transmisión y subtransmisión con diferentes niveles de tensión, identificando los modelos de IA que tienen mayor eficacia en el proceso de análisis y diagnóstico, exponiendo el proceso realizado desde la preparación de los datos hasta la validación de la herramienta y comparando los resultados obtenidos con el aplicativo llamado Diagnóstico Automático de Eventos  (DAE), el cual, fue desarrollado por la propia empresa hace varios años y que se utiliza actualmente en los análisis operativos de las fallas. Los resultados obtenidos permiten identificar la alta eficacia del nuevo sistema DAE desarrollado y su aplicabilidad para análisis en líneas de transmisión con voltajes desde niveles de tensión de 34,5 kV hasta 500 kV.
Evaluación de la Problemática Generada por la Presencia de Residuos Sólidos en el Páramo del Bordoncillo Vía Nacional de Santiago Putumayo
Authors: Carlosama - Jansasoy Luis Élber , Juajibioy – Quinchoa Darío Ernestor , Ojeda - Ortiz Mirna Sugey , Llanos - Bravo Tania Alejandra
Published: January 2025

En los últimos años el páramo del Bordoncillo ubicado en Santiago Putumayo, se ha venido deteriorando por la presencia de los residuos sólidos, debido a que no se realiza una adecuada gestión, además, de la falta de conciencia ambiental por parte de los habitantes que se encuentran en sus alrededores y otras personas que transitan por la vía nacional que no son conscientes de sus acciones. Por esta razón se busca darle relevancia a la problemática que se presenta en el páramo, por causa de la mala disposición de residuos sólidos. Por ende, la presente investigación se enmarca en un paradigma mixto, combinando enfoques cuantitativos y cualitativos, se utilizó un diseño descriptivo de campo para determinar la problemática que están generado los residuos sólidos en dicho ecosistema, incluyendo mediciones numéricas, análisis estadísticos por medio de encuestas. Una vez realizadas las fases planteadas en la investigación, se logra obtener como resultado, un total de 119 kg de residuos sólidos dejando evidencia clara de la problemática que está afectando al páramo, además las personas cercanas a dicho ecosistema concuerdan que los residuos sólidos están generando afectaciones negativas y manifiestan que los viajeros y personas de otras ciudades lo han tomado como botadero de residuos. La metodología empleada permitió comprender las actitudes y opiniones de las comunidades, así como cuantificar los residuos sólidos recolectados y clasificados, contribuyendo a la identificación y evaluación de la problemática ambiental en el páramo del Bordoncillo.
Las Comunidades Rurales y el Sistema Pensional Colombiano: Perspectivas y Desafíos Bajo la Ley 2381 de 2024
Authors: Duque Quintero Sandra Patricia , Duque Quintero Monica , Gonzalez Sanchez Patricia
Published: January 2025

Este artículo analiza la inclusión de las comunidades rurales en el sistema de protección social integral para la vejez, invalidez y muerte, establecido en la Ley 2381 de 2024. En primer lugar, se caracteriza a las comunidades rurales a partir de datos de la Encuesta Nacional de Calidad de Vida, destacando problemáticas estructurales como la alta informalidad laboral, los ingresos estacionales y el acceso limitado a servicios básicos. También se realiza un análisis crítico de los pilares del sistema pensional (solidario, semicontributivo, contributivo y de ahorro voluntario y finalmente, se identifican las disposiciones específicas orientadas a la inclusión de las comunidades rurales en el sistema pensional. La investigación es cualitativa con enfoque hermenéutico, utiliza herramientas como el análisis normativo, la revisión bibliográfica y la sistematización de datos estadísticos para contextualizar las disposiciones legales en relación con las realidades del campo colombiano. Se concluye que, aunque la Ley 2381 de 2024 representa un avance hacia la equidad en el acceso a la seguridad social, su efectividad depende de superar desafíos clave en su implementación. Es fundamental fortalecer los recursos destinados a los pilares solidarios y semicontributivos, flexibilizar y simplificar los requisitos del pilar contributivo y desarrollar estrategias adaptadas a las condiciones del campo colombiano, como programas de alfabetización financiera, conectividad tecnológica y apoyo operativo para las comunidades rurales. Sin estas modificaciones, el sistema pensional podría perpetuar las desigualdades históricas que afectan a estas poblaciones, impidiendo que se logre la verdadera universalidad y progresividad consagradas en la Constitución. Solo mediante un enfoque integral y una implementación eficiente será posible garantizar una protección social efectiva y digna para las comunidades rurales en materia pensional.
Principles of Building a System of State Bodies Taking Into Account Political Risks
Authors: Kaplan M. Panesh
Published: January 2025

The aim of this article is to examine the principles of building a system of state authorities taking into account political risks. Currently, there is a discernible interconnection between domestic and foreign policy, as well as an understanding of the overall picture of the world in the public consciousness of the country’s citizens. The author notes that, for state bodies, the category of risks can generate security threats. Ensuring state and public security requires the formation and effective functioning of special mechanisms of strategic management. It is observed that the effectiveness of state authorities in managing political risks is determined by a multitude of factors and varies depending on the structure and condition of the socio-political system. A contradiction is identified between the established political system and the economic form of state organization, as well as the influence of social institutions on the formation of political risks during the implementation of decisions made by state authorities. The laws of development in the dialectical paradigm of the world order and as part of the theory of confrontation are determined by the goals, economic potentials, technological development in the realization of plans, as well as the attitude of the world community. The author concludes that the principles of political decision-making should be grounded in the laws of dialectics – laws of development that do not con-tradict the natural course of global processes and promote the advancement of state power institutions.
The DPRK Nuclear Issue through the Prism of Russia’s and China’s Interests
Authors:   Far Eastern Federal University, Yizhou Dong
Published: January 2025

This article examines China’s and Russia’s views on the DPRK nuclear issue and strategy toward the DPRK, as well as the future direction and impact of the DPRK nuclear issue on the national security of the Northeast Asian region. The subject of the study is the DPRK nuclear issue. The object of the study is regional security in Northeast Asia. The author elaborates on aspects of the topic such as the deepening of the Korean Peninsula problem, why China and Russia are pushing for denuclearization, regional cooperation in Northeast Asia, and the security situation in Northeast Asia. The purpose of this article is to understand the impact of the DPRK nu-clear issue on the national security of the Northeast Asian region at the present stage and propose appropriate solutions. The novelty of the study is that sanctions may not be the right way, and only the joint cooperation of many parties and smooth development can effectively solve the problems.
Euro-Atlantic Activity in the Indo-Pacific Region in the Context of Its Security: Threats to China
Authors:   St. Petersburg State University, Fengting Zhu
Published: January 2025

The article is devoted to the study of the impact of the strategic interaction between the United States and NATO on the Indo-Pacific region in the context of intensifying geopolitical competition with China and Russia. It examines the reasons and consequences of NATO’s expansion in this region, as well as the implementation of the U.S. Indo-Pacific strategy. Particular attention is paid to the role of the conflict between Russia and Ukraine as a catalyst for strengthening cooperation between Western allies and Asian countries in deterring China. The study focuses on the implications for China, including challenges to its territorial integrity, economic and political stability. The aim of the article is to analyze the U.S. and NATO strategy in the Indo-Pacific region, its impact on the regional order and China’s interests, as well as to identify the geopolitical consequences of this strategy for international relations. The objectives of the research include: studying the historical prerequi-sites for NATO’s involvement in the regional politics of Asia, identifying the key aspects of the U.S. Indo-Pacific strategy, analyzing the impact of the Russia-Ukraine conflict on the implementation of the American strategy in Asia, identifying challenges for China in the context of increased U.S. and NATO presence in the region, evalu-ating China’s countermeasures, and assessing the prospects for regional cooperation. The article employs methods of systemic analysis and a historical-political approach. The research draws on the works of leading international relations theorists such as John Mearsheimer and Zbigniew Brzezinski, as well as an analysis of U.S. strategic documents. The comparative analysis method is used to examine interactions between the Unit-ed States, NATO, and their Asian partners. The empirical base includes official U.S. and NATO strategies and statements, as well as data on international alliances and exercises.
Issues in the Design and Validation of Coupled Reverberation Roomsfor Testing Acoustic Insulation of Building Partitions
Authors: Szeląg Agata , Zastawnik Marcin
Published: January 2025

The paper presents the characteristics of the sound field in two pairs of coupled reverberation rooms, designed in accordance with International Organization for Standardization [ISO] (2021c). The analyses are based on the results of the following studies. Firstly, the acoustic airborne sound insulation of selected test samples was measured in the reverberation rooms without using any sound diffusing nor sound absorbing elements. In the second step, the tests were repeated successively with an increasing number of diffusers installed in the rooms. The last stage of the research involved measurements with additional absorbers mounted in the rooms. The results show that although the geometry and construction of the reverberation rooms are in line with the standard guidelines, in most situations it was necessary to use diffusing and absorbing elements to improve the acoustic field in the rooms. Such elements, however, are very undesirable as they significantly limit the usable space of the rooms, making it more difficult to assemble samples and distribute sources and measurement points in the measurement space. Later in the article, the authors prove that even using typically available design tools, i.e., 1st and 2nd Bonello criterions, numerical simulations with the image-source method and the finite element method, or more advanced research methods, such as measurements using scaled samples, it seems impossible to prevent at the design stage the future necessity of using additional diffusing and absorbing elements in the reverberation rooms. Only via verification by measurements performed in the completed rooms provides the assessment if such additional elements are required.
Treatment, prognosis, and outcome of dogs treated for rectal plasmacytoma: a multicentric retrospective study
Authors: Jimeno Sandoval Juan Carlos , Cantatore Matteo , Meakin Lee , Menghini Timothy , Owen Laura , Doran Ivan , Erskine Matthew , Rossanese Matteo
Published: January 2025

OBJECTIVE

The aim of this study was to report the outcome and prognosis of canine patients treated medically or surgically for rectal plasmacytomas and to identify factors associated with recurrence, mortality, or progression to multiple myeloma.

METHODS

The databases of 7 referral hospitals were reviewed. The Kaplan-Meier method and Cox proportional hazards analysis were used to determine the association of a range of variables with recurrence and progression-free interval for the surgically treated patients.

RESULTS

20 dogs were included. Nineteen cases were treated surgically, and 1 case was treated conservatively (analgesia and monitoring). Metastatic lesions were detected in 2 of 20 dogs (10%). Four of 19 dogs (21%) treated surgically developed postoperative complications, 1 major (1 of 19 [5.2%]) and 3 minor (3 of 19 [15.8%]). Tumor recurrence was identified in 6 of 19 dogs (31.5%). The 1-, 2-, and 3-year survival rates were 95%, 72%, and 66%, respectively. None of the variables tested were associated with occurrence of complications. Increased distance from the anus, incomplete surgical margins, and decreasing surgeon experience were associated with an increased risk of recurrence. No progression to multiple myeloma was seen in any of the cases.

CONCLUSIONS

Surgical treatment of rectal plasmacytomas is associated with a low major complication rate and long survival. Metastasis and recurrence rates are significantly higher than previously reported.

CLINICAL RELEVANCE

Conservative surgery leads to long-term survival, but recurrence is common. Future studies should focus on the benefits of adjuvant treatments.
The age and genetics of individual larches in four rural parks and at the Järvselja Educational and Experimental Forest Centre in Estonia
Authors: Sander Heldur , Pâques Luc E.
Published: January 2025

The article investigates the historical presence and current status of larch trees within the parks of five former manors in South Estonia: Kastre and its Peravalla forest district (now Järvselja Educational and Experimental Forest Centre), Mäksa, Kabina and Mõniste. Before 1918, South Estonia was part of the province of Livonia in the Russian Empire. The analysis encompasses taxonomy, habitats and the introduction of various larch species. Selected larch trees within these parks were dated using dendrochronological methods. The research revealed a consistent pattern of larch tree planting over a century, occurring in seven distinct rounds between the 1820s (Kastre Park) and the 1940s (Järvselja) as follows: 1) 1820 and 1895 (Kastre), 2) 1907 and 1920–1940 (Järvselja), 3) 1825–1840 (Mõniste), 4) 1855–1865 (Kabina), and 5) 1870–1880 (Mäksa). Genetic characterization was applied to determine individual tree species based on morphometric determinations. The majority of larch trees within the parks were genetically confirmed as European larches, which was consistent to the morphological assessments conducted at Kastre, Järvselja and Mäksa. The analysis revealed that a younger, naturally propagated larch located at Kastre with morphological characteristics of European larch showed subtle genetic indicators of Japanese larch. The cause of this unexpected finding remains vague. It is hypothesized that this specific tree might represent a hybrid of European and Siberian larches, given its inclusion within a stand hosting both species in proximity. At Järvselja, the genetic method confirmed the morphological identification of four larches as Japanese and two as Dunkeld larches. Six Siberian larches (sensu lato) located at Kastre and Järvselja were genetically identified as hybrids of Japanese and European larches while the cause of this hybridization remains unclear. Utilization of genetic markers not validated for Russian (L. archangelica), Siberian (L. sibirica s. str.), and hybrid (L. decidua × L. sibirica and L. sibirica × L. decidua) larches makes the obtained results inconclusive. In the case of Mäksa, both morphological and genetic analyses confirmed the presence of Japanese and Euro-Japanese larches, which was previously confirmed. It is important to note that the classification of L. leptolepis × L. decidua proposed by Bobrov is considered incorrect. Trees displaying similar characteristics, especially older specimens, should be classified according to Bobrov’s description as L. decidua f. kaempferi or f. marschlinsii.
Pre-sowing treatment of acorns with gibberellic acid and N-hexanoyl-L-homoserine lactone induced changes in growth and hormonal balance of Quercus robur L. seedlings
Authors: Voytenko Lesya , Vasyuk Valentyna , Babenko Lidia , Shcherbatiuk Mykola , Romanenko Kateryna , Kosakivska Iryna V.
Published: January 2025

This study aimed to assess and compare the impact of priming with gibberellic acid (GA3) and N-hexanoyl-L-homoserine lactone (C6-HSL) on acorn germination, seedling growth, and the balance of endogenous phytohormones in 47-day-old seedlings of pedunculated oak (Quercus robur L.). We hypothesized that exogenous GA3 and C6-HSL induce changes in hormonal homeostasis, which activate the germination of acorns and growth of seedlings. Acorns were soaked for 24 hours in water (control) and solutions of gibberellic acid (50 mg/L) and C6-HSL (300 ng/ml). The dynamics and distribution of endogenous cytokinins, abscisic (ABA), indole-3-acetic (IAA), gibberellic (GA3 and GA4) and salicylic (SA) acid in 47-day-old seedlings' organs of Q. robur were analysed using HPLC-MS. Priming with GA3 solution resulted in 85.8% of acorn germination, surpassing the control by 24.6%, whereas priming with C6-HSL solution led to 93.4% germination, surpassing the control by 32.2%. GA3-primed plants (GA3+plants) showed enhanced shoot growth, while C6-HSL-primed (C6-HSL+plants) plants had intensive root development. GA3 also caused epicotyl shoot thickening. Both regulators increased cytokinins, mainly active zeatin forms, with pronounced changes in shoots under C6-HSL and in roots under GA3. ABA content increased in both GA3+ and C6-HSL+plants, with a more significant effect in the roots of C6-HSL+plants. Both regulators negatively impacted IAA accumulation, with GA3 exhibiting a more pronounced effect, causing IAA accumulation to shift from shoots to roots post priming, whereas IAA dominance occurred in the shoots of non-primed acorns (C-plants) and C6-HSL+plants. The total gibberellin content increased in primed seedlings, with GA4 accumulating in GA3+plants and GA3 in C6-HSL+plants, surpassing GA3+plants by 40.7%. GA3+plants exhibited decreased SA in roots, contrasting with increased SA in the roots of C6-HSL+plants. In conclusion, both growth regulators optimized acorn germination, induced changes in hormonal homeostasis and enhanced seedling growth, with increased root growth in C6-HSL plants and shoot growth in GA3 plants.
Degree of Acceptance of the BIS Model in the Mechatronics Course
Authors: García Javier Rossette , Martínez Gabriela Clemente , Hernández José Genaro González , Gámez Julio César Martínez
Published: January 2025

Objective: To identify the areas of opportunity of the Bilingual International and Sustainable (BIS) model, starting from the subjects in formation: the students.
 
Theoretical Framework: It is based on the process of internationalization in vogue at the beginning of the new millennium due to the imperative need of the global economy to demand bilingual professionals. This became important during the six-year term of office of President Peña Nieto, and the UTs had to make the transition from the traditional model to the BIS model, involving curricular transformation, changes in the field of teaching, lack of infrastructure and continuity in the teaching of the lingua franca.
 
Method: This is a quantitative approach with an exploratory, non-experimental scope. The technique used was a Likert scale survey with three points, and the measuring instrument was an Excel database for analyzing the data, whose reliability was obtained by means of Cronbach's Alpha.
 
Results and Discussion: They emphasize that the students decided to study under the BIS modality without considering its implications, such as the lack of clarity of the mobility process and the need for more counselling for the assimilation of the lingua franca; on the other hand, they point out that the didactic teaching aids need to be updated. On the other hand, they were not 100% satisfied with this modality. Despite this, They are trained in a way that makes them competitive and eligible for priority consideration by employers, as they can interact in various national and international contexts.
 
Research Implications: It helps generate strategies for improving students' adaptation to the BIS modality in a practical way; theoretically, it provides the research community with certain bases for future studies.
 
Originality/Value: The work derives from a phenomenon detected in the UT subsystem in Mexico, particularly in the Technological University of Altamira, Tamaulipas. Because the implementation of such an educational model is still recent and the literature developed in this respect is scarce, the document presented here is a contribution to the scientific community, subject to its assessment.
Mathematical Approach to Children’s Mental Health and Well-Being: Perspectives of Public Education in the Municipality of Caucaia-Ceará
Authors: Freires Kevin Cristian Paulino , Gomes Loyane Ellen Silva , Vasconcelos Anailda Fontenele , Nascimento Edinardo Aguiar do , Silva Denise Barbosa da , Sales Francisco Odécio
Published: January 2025

Objective: The research aims to measure students' mental health using mathematical models.
 
Theoretical Framework: The research is based on concepts about mental health, emotional well-being and mathematical methods applied to social sciences. Models such as the Emotional Well-Being Index and Aaron Beck's Cognitive-Behavioral Therapy are used, which highlight the impact of emotional well-being on students' academic performance.
 
Method: The methodology used is a bibliographical research of a qualitative and quantitative nature, with exploratory and descriptive objectives, using a closed questionnaire to obtain research data, complemented by a mathematical analysis of emotional well-being, taking into account socioeconomic factors and the students' living conditions.
 
Results and Discussion: The results indicated high levels of anxiety and stress among students, especially those facing socioeconomic difficulties, as well as a correlation between these factors and emotional well-being, suggesting that the implementation of psychological support programs and activities that promote well-being in schools can be efficient.
 
Research Implications: The research provides data that can support public policies aimed at emotional well-being in schools, especially in vulnerable contexts. It suggests practical interventions, such as psychological support programs, in addition to highlighting the potential of integrating mathematical and socio-emotional methods to improve studies and educational actions.
 
Originality/Value: The study is innovative in combining mathematical models and emotional factors to measure mental health in the school environment. Its results offer a practical and replicable methodology, contributing to educational interventions and public policies that promote student well-being.
Potential of credit organizations in modern Russia
Authors: SMIRNOV Valerii V.
Published: January 2025

Subject. The article investigates the potential of credit institutions.
Objectives. The aim is to determine the potential of credit institutions in modern Russia.
Methods. The study draws on general scientific methods, i.e. data analysis and synthesis, and special economic and mathematical methods, in particular, correlation and regression, neural network, and cluster analysis.
Results. The potential of credit institutions in modern Russia is determined by the actions of the Bank of Russia to target inflation. The paper established a significant increase in the strength of credit institutions due to the growth of customer funds. Liquidity issues are addressed through advance excess of intraday loans provided by the Bank of Russia for the current month, capital in the balance sheet of credit institutions at the beginning of each month. To reduce the risk of monetary claims, the paper shows the actions of the Bank of Russia to ensure the transition of these relations to digital rights.
Conclusions. The identified potential of credit institutions in modern Russia, characterized by an increase in their strength due to the growth of customer funds and intraday loans provided by the Bank of Russia, in the context of the transition of monetary claims to digital financial assets and utility digital rights, enable the expert community to competently determine the critical balance of credit institutions and the overall financial system.
Agrotourism as a driver of rural development in russia: Experience in the development of facilities in the Krasnodar Krai
Authors: P'YANKOVA Svetlana G. , LININ Vyacheslav V.
Published: January 2025

Subject. The article addresses agrotourism as an important tool for diversifying agriculture and stimulating regional economic development.
Objectives. The aim is to analyze experience in developing agrotouristic facilities, using the case of farms in Sochi, Krasnodar Krai, identify key areas for improving the efficiency and sustainability of their operation, make recommendations for further development of this tourist destination to stimulate socio-economic growth in rural regions.
Methods. The study employs abstract-logical, statistical, and dialectical methods of scientific cognition.
Results. The analysis showed an increase in the gross value added of the tourism sector, an increase in the number of agrotouristic facilities and their development. The paper identified key factors influencing the efficiency of agrotouristic enterprises.
Conclusions. The activity of agricultural producers demonstrates positive dynamics. However, there are problems, i.e. insufficient legal regulation and transport accessibility that hold back the potential of agrotourism. It is crucial to strengthen interdepartmental cooperation between agricultural producers, travel agencies, and government agencies, in particular at the regional level. This will contribute to synergistic effect formation, ensuring sustainable economic growth and improving the socio-economic condition of rural areas.
LLM models in economics: New approaches to data analysis
Authors: NAZAROV Dmitrii M.
Published: January 2025

Subject. The article considers LLM models and their key elements in the context of economic research.
Objectives. The aim is to develop a tuple model that formalizes the main components of LLM models, and a methodological approach that defines the essence of the use of LLM models based on GPT-4o in the interpretation of economic texts.
Methods. Based on the analysis of literature on functional and structural interactions of LLM components, a tuple model was developed: LLM = (Data Preparation, Data Processing, Text Generation), enabling to present the mechanism of operation of artificial intelligence algorithms in text generation.
Results. The findings show that using the tuple model helps understand how the key elements of LLM models interact with each other, which hyperparameters of the model allow influencing its creativity in forming answers to questions. The paper offers a methodological approach and proves the effectiveness of its application on pretrained models based on GPT-4o for "temperature" hyperparameter regulation.
Conclusions. The developed approach and the tuple representation of LLM models can be effectively used for further study, including in the framework of economic processes. The results of the analysis can contribute to the creation of strategies aimed at optimizing the use of LLM models in various sectors of the economy, and improving decision-making based on data analysis.
Studying the economic systems with hybrid intelligence based on the theory of utility
Authors: MAKRUSEV Viktor V. , LYUBKINA Ekaterina O.
Published: January 2025

Subject. The article addresses characteristic trends in the evolution of socio-economic systems, taking into account scientific, technical, and technological progress.
Objectives. The study aims to unveil the economic essence of intellectualization of socio-economic systems based on the analysis of utility function of artificial intelligence and limits of organization’s technological potential.
Methods. We employed general scientific and special research methods, like analysis, generalization, economic and mathematical modeling, etc.
Results. The paper presents a new approach to solving the problems of intellectualization of technological platforms of the economy, based on the theory of utility, defines approaches to the economic analysis of artificial intelligence technologies, formulates the hypothesis of dependence of the evolution of economic system’s intellectual transformation on coherence and balance of factors of innovative, institutional, and political development (the hypothesis of reversibility).
Conclusions. The study defines the paradigm of intellectualization of technological platforms as a basic, integrative one, for the development of technological potential of the economy in modern conditions and in a strategic perspective.
СLINICAL AND LABORATORY FEATURES OF LEPTOSPIROSIS DEPENDING ON THE SEASON OF THE YEAR
Authors: Zubach Olena , Zinchuk Alexander
Published: January 2025

This study aimed to describe seasonal features of leptospirosis clinical course and laboratory changes in patients with this disease in the Lviv region.
Material and Methods. We conducted a retrospective analysis of 395 medical cards of patients with a diagnosis of "Leptospirosis" who were treated at the Lviv Regional Clinical Hospital of Infectious Diseases for a period of 15 years. The results were statistically processed using Fisher's bilateral test.
Results and Discussion. This manuscript analyzes the seasonal features of the clinical course of leptospirosis in the territory of the Lviv region. Despite the highest frequency of leptospirosis cases in the summer-autumn period, the most severe course was observed in spring and winter. This can be explained by a decrease in the body's reactivity during these seasons of the year. It has been established that with leptospirosis, the severity of the disease, as well as the severity of the main symptoms and changes in laboratory parameters can be conventionally expressed in the following order: spring > winter > autumn > summer. Jaundice was observed oftenest in patients with leptospirosis during winter, the main complications of leptospirosis (acute kidney failure, toxic shock syndrome and thrombohemorrhagic syndrome) - during the spring months, and pneumonia - in winter. Among the changes in laboratory data, the following deserve attention: thrombocytopenia and significant anemia are more pronounced in patients during spring, and leukocytosis and hyperazotemia in winter.
Conclusions. The obtained data, which characterize the clinical and laboratory seasonal features of leptospirosis, testify to the fact that the course of leptospirosis is more severe in spring and winter compared to other seasons.
SATISFACTION WITH WORKING CONDITIONS AND MENTAL HEALTH OF HEALTHCARE WORKERS ACCORDING TO THEIR SELF-ASSESSMENT
Authors: Borovets Vsevolod , Lyubinets Oleh
Published: January 2025

The ongoing military operations in Ukraine have intensified the pre-existing stress experienced by medical professionals due to the inherent demands of their work.
Aim. This study aims to examine the impact of working conditions on the mental health of healthcare workers based on their self-assessments.
Material and Methods. The study utilized data from a survey of 389 healthcare workers, employing a custom-designed questionnaire. A combination of quantitative and qualitative analytical methods was applied to assess the results.
Results and Discussion. The findings indicate that "Satisfaction with working conditions" exerts the most significant influence on the mental health of healthcare workers. A detailed analysis of this determinant was conducted based on respondents' gender, years of service in the healthcare system, and professional roles. Managers of healthcare facilities gave the highest assessment of the importance of this determinant (3.84±0.16 points), and the group of doctors rated it the lowest (3.19±0.13 points), which was significantly lower than the results of the survey in other groups of respondents depending on their position (p<0.05). Satisfaction with working conditions is significantly associated with the level of personal income and its distribution, as well as with satisfaction with housing conditions. There is a direct correlation between satisfaction with working and living conditions and personal income, which confirms the researchers' conclusions about the importance of the impact of these determinants on mental health.
Conclusions. The specifics of the working conditions of medical staff are an important determinant of their mental health and directly impact life satisfaction, which in turn contributes to improving the quality and productivity of work, increasing staff motivation. Supporting the mental health of medical staff is an integral part of strengthening public health.
Economia da discriminação e estereótipos raciais na mídia brasileira: análise via vetores de palavras
Authors: Jansen Ferreira Mariana R. , O. Silva Jefferson , Silva Gracielle , S. de Paiva Maria Claudia
Published: January 2025

Este artigo analisa como a mídia retrata a inserção da população negra no mercado de trabalho a partir das duas profissões mais bem remuneradas do país (médico e juiz). As publicações da Folha de S.Paulo entre 2018 e 2022 são objeto deste estudo, que combina referenciais teóricos e mapeamento dos salários para realizar a análise de vetores de palavras.
عمل المرأة في القطاع العسكري وأثره على العلاقات الأسرية – دراسة وصفية على عينة من العاملات في قطاع حرس الحدود والقطاع البحري بمدينة جدة –
Authors: الزهراني ريم عبدالرحمن , الرامي رامية خضر , المغربي سميرة سعدالدين
Published: January 2025

لعمل المرأة في القطاع العسكري تأثير على الأسرة بشكل عام وعلى العلاقات الأسرية بشكل خاص، لذا هدفت الدراسة إلى التعرف على مدى تأثير عمل المرأة في القطاع العسكري على العلاقات الأسرية في المجتمع السعودي، المتمثل في علاقتها مع والديها وإخوتها وأقاربها، وقد طبقت الدراسة على عينة مقصودة بلغ عددها(62) من العاملات في قطاع حرس الحدود والقطاع البحري بمدينة جدة ، واستخدمت الدراسة المنهج الوصفي، وكانت الاستبانة هي أداة جمع البيانات، ومن خلال تحليل بيانات الدراسة ظهرت النتائج التالية : أن متوسط محور " العلاقة مع الوالدين " لإجابات عينة الدراسة يساوي 2.1820 وهذا يدل على أن عينة الدراسة أجمعوا على أنهم "موافقين إلى حد ما" كما أن متوسط محور " العلاقة مع الأخوة " لإجابات عينة الدراسة يساوي 2.4401 وهذا يدل على أن عينة الدراسة أجمعوا على أنهم "موافقين"، كما أظهرت نتائج الدراسة أن متوسط محور " العلاقة مع الأقارب " لإجابات عينة الدراسة يساوي 1.7323 وهذا يدل على أن عينة الدراسة أجمعوا على أنهم "موافقين إلى حد ما"، وتوصي الدراسة بعقد ندوات من قبل متخصصين في الإرشاد الأسري لتثقيف وتوعية الوالدين والأقارب حول طبيعة ومتطلبات عمل المرأة في القطاع العسكري، وتوصي بإجراء المزيد من البحوث والدراسات الاجتماعية حول تأثير عمل المرأة في القطاع العسكري على الحياة الأسرية من جوانب مختلفة أخرى.
Cultural Identity Formations in Arabic Children's Literature
Authors: Yehia Rafea Saeid
Published: January 2025

This article explores the intricate relationship between national identity and environmental identity in Arabic children's literature, particularly in the context of globalization. It employs a qualitative approach, analyzing existing children's literature and case studies to understand how globalization impacts these identities. The findings indicate that national identity, defined as a sense of belonging to a specific community with its unique history and culture, is increasingly threatened by globalization. This exposure to diverse cultures can erode cultural specificity, leading to diminished social cohesion. Conversely, environmental identity, which reflects individuals' connections to their natural surroundings and awareness of environmental issues, is gaining prominence. This identity fosters values of sustainability and collective responsibility for natural resource protection. The article concludes that conflicts between national and environmental identities emerge as societies grapple with preserving cultural characteristics while addressing environmental challenges. The interplay of these identities is particularly significant in Arabic children’s literature, where cultural narratives shape children's self-awareness and orientation. Arabic children's literature serves as a critical medium, reflecting the cultural values and traditions of Arab society and contributing to a rich and diverse cultural identity. By embodying children's daily experiences and cultural interactions, this literature plays a vital role in fostering national pride and environmental consciousness among young readers.
Serine Octamer Clusters Direct the Chirality of Peptides Formed in Water Microdroplets
Authors: Cooks R Graham , Shira Brison
Published: January 2025

The chemistry underlying biological homochirality remains challenging. We propose that non-covalent clusters may have served as the means through which homochiral biochemistry emerged. Serine has long been known to exhibit a chiral preference in clustering to form the octamer; we extend this finding by reporting the effects of a non-zero e.e. in serine on the chiral preference seen in the formation of non-covalent clusters with other amino acids and in the formation of their covalent condensation products, peptides. We show (i) enantiopure serine directs racemic leucine and proline toward enantioselective dipeptide formation in water microdroplets and (ii) likely intermediates are seen as amino acid substitution products into the serine octamer cluster. This work indicates the relevance of microdroplet sprays, such as those found in natural aerosols, to molecular clustering phenomena and to homochirality.
Rational Enzyme Evolution by Facilitating Correlated Motion along the Reaction
Authors: Wang Lianxin , Xue Yuanfei , Wang Jia-Ning , Mo Yan , Mei Ye
Published: January 2025

Enzymes are highly efficient and specific protein catalysts that play an essential role in regulating metabolic processes in living organisms. By modulating the rates of chemical reactions, enzymes tune fundamental essential biological functions. Directed evolution is a widely used strategy to enhance protein functionality by selecting variants with desirable traits through random mutation and recombination. However, this approach often relies heavily on chemical intuition and demands substantial experimental resources, including labor-intensive mutagenesis. In contrast, rational enzyme engineering leverages mechanistic insights to enhance efficiency and reduce costs. This study presents a mutation strategy guided by the correlated motion of protein during enzymatic reactions, validated through four mutations across two proteins. The results underscore the potential of this approach to streamline and advance enzyme evolution.
La tutoría como estrategia para el fortalecimiento del perfil de egreso en estudiantes universitarios, Lambayeque
Authors: Díaz de Angulo Doris Margot , Vallejos Trauco Rosa Luz
Published: January 2025

Esta investigación está relacionada con la tutoría como estrategia para el fortalecimiento del perfil de egreso en estudiantes universitarios. La tutoría es un proceso que permite a los estudiantes a fortalecer una formación integral, asimismo para la toma de decisiones, para el desarrollo de habilidades, destrezas y valores en el ámbito académico, esto con lleva al logro con éxito profesional.  El objetivo fue Analizar la tutoría como estrategia para el fortalecimiento del perfil de egreso en estudiantes universitarios, Lambayeque. La metodología tiene en cuenta métodos descriptivos y técnicas de última generación, que permiten un análisis sistemático y reflexivo de la realidad y el contexto, basado en métodos cualitativos y la búsqueda de datos e información científica en un total de 62 fuentes bibliográficas confiables. La obtención de los resultados de la triangulación de datos y teorías permitió verificar la validez de la investigación científica y concluir que la tutoría como herramienta pedagógica fortalece el perfil de egreso de los estudiantes universitarios.
Nutrição e Matrizes: Uma Proposta de Ensino por meio da Modelagem Matemática
Authors: Castellanos Aguirre Uriel José , Gomes Melo Gustavo
Published: January 2025

O seguinte artigo reflete sobre a Modelagem Matemática como caminho possível para abordar processos matemáticos com o uso das tecnologias digitais. O objetivo é desenvolver uma micro-aula com influências da Modelagem Matemática para o planejamento do professor contemporâneo em tempos de pandemia. A partir da “micro-aula” realizada, denominada “Modelagem Matemática: Nutrição e Matrizes”, apresentamos os desafios do distanciamento social, que levou escolas, centros educacionais e Universidades a desenvolver o uso de modelos educativos mediados pelas tecnologias. Para isso utilizamos a metodologia de Pesquisa Baseada em Design (PBD) que apresenta quatro etapas fundamentais de ação, como: a) descrição do problema educativo; b) descrição do desenvolvimento do artefato pedagógico a partir de uma teoria norteadora; c) descrição da intervenção pedagógica; e, d) descrição de princípios de design. Desta forma, a influência da concepção de Modelagem Matemática desenvolvida por Barbosa (2001) nos permitiu gerar um ambiente favorável, para pensar por meio do uso do produto de matrizes a nutrição e explorar diferentes alimentos e contextos locais. Concluímos que a proposta da realização de uma micro-aula de Modelagem Matemática é necessária para refletir nossos espaços locais, porém, exige de tempo além de enfrentarmos algumas dificuldades próprias do ensino remoto, como o acesso às tecnologias digitais, o acesso à internet e a comunicação. Finalmente, consideramos que a estratégia nos permitiu trazer novidades ao ambiente educacional, pois despertou o interesse dos estudantes ao interagir e se comunicar entre eles, a partir do cotidiano e das tecnologias, permitindo fazer acontecer o pensar matemático.
Mapeamento das Pesquisas sobre Sala de Aula Invertida Envolvendo Conteúdos Matemáticos do Ensino Fundamental
Authors: Carvalho de Menezes Douglas , Medeiros de Carvalho Alex , José de Souza Junior Arlindo
Published: January 2025

A metodologia sala de aula invertida no Brasil vem ganhando força nos últimos cinco anos (2017 - 2021), haja vista pela quantidade de trabalhos de dissertação e teses em diferentes programas de pós-graduação. Nesse sentido, buscou analisar e catalogar as dissertações de mestrado e teses de doutorado publicadas sobre a utilização da metodologia sala de aula invertida no contexto do ensino fundamental produzidas no Brasil, produzindo assim um levantamento bibliográfico. Para construir esse trabalho, concentram-se os esforços em produções que estavam online no banco da CAPES, fazendo um mapeamento de 14 dissertações. Os resultados dessas pesquisas apontaram que os dois ambientes virtuais de aprendizagem mais utilizados foram o Google Classroom ou Google Sala de Aula e a plataforma Khan Academy. O aplicativo mais utilizado foi o WhatsApp. Ao utilizar a metodologia sala de aula invertida os professores estão proporcionando aos estudantes a utilização das ferramentas das Tecnologias Digitais de Informação e Comunicação para que os mesmos possam desenvolver as suas próprias trilhas de autonomia no processo de aprendizagem, pois a metodologia sala de aula invertida pode despertar nos discentes o interesse de construírem a sua própria trilha do seu conhecimento.