bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vegetación del Parque Nacional Sierra de las Nieves y su entorno (Málaga, España)
Authors: Pérez Latorre Andrés Vicente , Casimiro-Soriguer Solanas Federico , Hidalgo Triana Noelia , Cabezudo Baltasar 
Published: February 2025

Se ha realizado el estudio de identificación y clasificación de las comunidades vegetales del Parque Nacional de la Sierra de las Nieves y su entorno, así como de los hábitats de interés comunitario (HIC) correspondientes. El área de estudio se encuentra al suroeste de la península Ibérica (Málaga, España) en la cordillera Bética occidental. Es una zona biogeográficamente compleja, con tres sectores: Rondeño (calizas, dolomías y arcillas), Aljíbico (micaesquistos y gneises) y Bermejense (rocas ultramáficas -peridotitas-) a lo que se une su diversidad bioclimática por poseer cuatro termotipos, desde el termo al oromediterráneo y 4 ombrotipos, desde el seco al húmedo (- hiperhúmedo). Se ha utilizado el método fitosociológico, realizándose inventarios distribuidos por todas las macroteselas posibles y en distintas estaciones fenológicas. Como resultado, se han levantado 428 inventarios y se han utilizado además otros 336 bibliográficos. Se han identificado un total de 36 clases fitosociológicas y 122 sintaxones (94 asociaciones y 28 comunidades). Se han descrito 7 nuevas asociaciones y 8 subasociaciones y además hay otras novedades de tipo sincorológico y/o sintaxonómico y 15 nuevas comunidades. El total de HIC en el área de estudio es de 98, de los cuales 20 son prioritarios, siendo novedad para Andalucía el HIC *5230 Matorrales arborescentes con Laurus nobilis.
Application of Pert-CPM Tools for Analyzing the Operative Chain of Archeological Ceramic Objects
Authors: Solórzano-Venegas Maria Soledad , Hidalgo Pablo Fernando Sarango 
Published: February 2025

Objective: The aim of this paper is to present a methodological guide based on contemporary project management tools to estimate the time, personnel, and resources involved in the operative chain of producing of archaeological pottery objects.

Theoretical Framework: Ceramic production in the upper River course became widespread during the second millennium BC. It remains embedded in the social memory of Napu Runa- Quijos populations through the continued use of traditional materials and techniques. Under controlled experimental conditions, the manufacturing process of eight artifacts presenting three typological categories was replicated -urns, globular pots and elliptical pots-. These artifacts were recovered from an archeological context associated with the Cosanga I phase at the Pashimbi archeological site.

Method: Data were obtained through ethnography tools and participatory observation. The information was subsequently processed and analyzed using the combined PERT-CPM methods.

Results and Discussion: The three artifact types were produced at different stages. The fabrication of two urns required 953.17 hours (PERT), involving between four and eight individuals. The production of two globular pots took 772.00 hours (PERT), with the participation of two to four individuals. Finally, the manufacturing of four elliptical pots required 872.54 hours (PERT), with a workforce ranging from four to six individuals.
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Research Implications: The social and historical continuity of the pottery production system in the present has facilitated the recreation of past social processes.

Originality/Value: Contemporary project management tools enabled the generation benchmarks that can be utilized by other researchers.
Environmental Assets of Sustainable Sustainable Companies on the Mexican Stock Exchange
Authors: Martinez Saulo Sinforoso , Mora Oscar Yahevh Carrera 
Published: February 2025

Objective: Identify the environmental assets of sustainable companies on the Mexican Stock Exchange.

Theoretical Framework: The study is based on the Three-Dimensional Accounting Theory, which highlights the importance of integrating environmental aspects into financial information.

Method: The methodology has a descriptive, documentary scope. The environmental assets variable is analyzed in the financial reports and sustainability reports for the 2021 financial year of 30 companies considered sustainable for the year 2022.

Results and Discussion: It is identified that during 2021, sustainable companies in Mexico have environmental assets such as machinery, equipment, certifications and investments, which favors their development in a sustainable environment. It is concluded that the companies studied contribute to the care and conservation of the environment through the acquisition of environmental assets.

Research Implications: From a social perspective, it is identified how ecological taxes contribute to caring for the planet.

Originality/Value: The originality of this work lies in the identification of the development of concepts and theories linked to environmental accounting in the Mexican business sector.
Proactive Competencies in Education: A Systematic Literature Review of the Last Five Years
Authors: Moreira Julio César Rivadeneira , Vera Alex Leonel Merizalde 
Published: February 2025

Objective: This article aims to analyze the impact of proactive competencies in the educational context over the last five years, focusing on their influence on student learning and the most effective pedagogical strategies to promote them.

Theoretical Framework: The review is based on recent literature that highlights the importance of proactive competencies as a set of skills and attitudes that allow students and teachers to anticipate situations, take the initiative and act responsibly.

Method: The methodology is based on the PRISMA method, which includes an exhaustive search in academic databases such as Scopus, SciELO, Redalyc, Dialnet, Erih Plus, Latindex and the César Vallejo University. Inclusion and exclusion criteria were applied to select relevant studies published between 2020 and 2024. Additionally, a data extraction matrix was used to organize key information from each selected article.

Results and Discussion: The results indicate a consensus on the need to transform traditional educational methodologies to promote proactive competencies. Despite its importance, many educational systems still use methods that limit student autonomy. It is highlighted that the personalization of learning and continuous teacher training is crucial to develop these competencies. The review also reveals that active methodologies are effective in involving students in their educational process.

Implications of the Research: Research suggests that it is essential to integrate proactive competencies into the educational curriculum and train teachers to implement pedagogical strategies that promote active learning. This will not only improve academic performance but also contribute to the all-round development of students.

Originality/Value: This article provides an updated view on the state of proactive competencies in education, highlighting both the challenges and opportunities for their implementation. It provides a solid foundation for future research in this field, emphasizing the importance of preparing students to be active and responsible citizens.
Quality of Flowcharts in Meta-Analyses in Education: A Systematic Review
Authors: Sánchez-Martín Micaela , Gutiérrez Sánchez Marta , Olmedo Moreno Eva Mª , Navarro Mateu Fernando 
Published: February 2025

Objective: To evaluate the quality of flow diagrams in meta-analyses published in education. Methods: Systematic review. Inclusion criteria: Meta-analyses of experimental studies on educational interventions focused on academic performance, published in English or Spanish between January 1, 2009, and April 30, 2022. Exclusion criteria: Other study designs, different outcomes, or inaccessible articles. Literature search: ERIC, WoS, Scopus, and PubMed, along with manual searches. Article selection and data extraction were conducted using a pre-established and registered protocol by two independent evaluators. Data collected included study characteristics, risk of bias, and adherence to PRISMA guidelines. Flow diagrams were evaluated based on 16 quality criteria according to PRISMA. Statistical analyses included descriptive statistics, Chi-square tests or Fisher's exact test, and logistic and linear regression analyses to obtain odds ratios (OR) and beta coefficients (ß), respectively, along with their 95% confidence intervals (CI) and p-values. Results: Out of 2,076 studies initially identified, 69 were included (41 [59.4%] with a flow diagram). Six of the 16 criteria had compliance rates below 50%. The presence of a flow diagram was associated with a lower risk of bias and greater adherence to PRISMA guidelines among other described factors. Conclusions: The use and quality of flow diagrams in meta-analyses published in education are unsatisfactory.
Resumen
Objetivo: evaluar la calidad de los diagramas de flujo de los meta-análisis publicados en educación. Métodos: Revisión sistemática. Criterios inclusión: metaanálisis de estudios experimentales sobre intervenciones educativas centradas en rendimiento académico, en inglés o español entre 1/enero/2009 y 30/abril/2022. Criterios exclusión: otros diseños, otros resultados o artículos no accesibles. Búsqueda bibliográfica: ERIC, WoS, Scopus y PubMed y búsqueda manual. Selección de artículo y extracción de datos con un protocolo previamente elaborado y registrado por dos evaluadores independientes. Datos: características de los estudios, riesgo de sesgo y adherencia a la PRISMA. Los diagramas de flujo se evaluaron con una 16 criterios de calidad según la PRISMA. Análisis estadísticos: estadísticos descriptivos, Chi-cuadrado o prueba exacta de Fisher y análisis de regresión logística y lineal obteniendo la OR y el coeficiente ß, respectivamente, con sus IC95% y p-valores. Resultados: De 2076 estudios inicialmente identificados, se incluyeron 69 (41 (59.4%) con un diagrama de flujo. Seis de los 16 criterios tuvieron un cumplimiento inferior al 50%. El diagrama de flujo se asoció con menor riesgo de sesgos y mayor adherencia a la PRISMA, entre otros factores descritos. Conclusiones: la utilización y calidad del diagrama de flujo en los metaanálisis publicados en educación es insatisfactoria.
Оценка и прогнозирование перспектив развития региональных экономических систем для укрепления гражданской защиты
Authors: Дмитриева Е.В. 
Published: February 2025

Цель данного исследования заключается в разработке методологии оценки и прогнозирования перспектив развития региональных экономических систем, направленной на укрепление гражданской защиты. Выявлены ключевые факторы, влияющие на экономику региона, и предложены инструменты для их анализа, который может быть использован для повышения уровня безопасности и устойчивости населения в условиях экономической неопределенности. На примере Ярославской области рассмотрено значение влияния рисков природного, техногенного, биолого-социального и иного характера на стабильность экономического развития региона. Сделаны выводы о необходимости разработки и внедрения современных технологий мониторинга и прогнозирования для повышения уровня готовности регионов к чрезвычайным ситуациям. Доказана необходимость оценки степени и характера рисков, влияния комплекса профилактических мероприятий, направленных на предотвращение кризисных ситуаций, построенном на непрерывном мониторинге с использованием оценок эффективности мероприятий, основанных на системе интегральных показателей и вероятностных моделей расчетов устойчивости региональных экономик. Предложены подготовленные автором методические рекомендации создания условий регионального социально-экономического развития субъектов Российской Федерации в условиях угрозы кризисных ситуаций.
The purpose of this study is to develop a methodology for assessing and forecasting the prospects for the development of regional economic systems aimed at strengthening civil protection. Key factors affecting the economy of the region were identified and tools were proposed for their analysis, which can be used to increase the level of security and sustainability of the population in conditions of economic uncertainty. On the example of the Yaroslavl region, the importance of the impact of natural, technogenic, biological, social and other risks on the stability of the economic development of the region is considered. The methodological recommendations prepared by the author for creating conditions for the regional socio-economic development of the constituent entities of the Russian Federation in conditions of the threat of crisis situations are proposed.
ВЕРОЯТНОСТНАЯ ОЦЕНКА ГИДРОЛОГИЧЕСКИХ ПАРАМЕТРОВ ПРИ ПАВОДКАХ, ВЫЗВАННЫХ ОБИЛЬНЫМИ ОСАДКАМИ
Authors: Акимов В.А. , Иванова Е.О. , Олтян И.Ю. 
Published: February 2025

В статье для прогнозирования чрезвычайных ситуаций, вызванных паводками, предлагается использовать байесовскую статистику – теорию в области статистики, основанную на байесовской интерпретации вероятности, когда вероятность отражает степень доверия событию, которая может измениться, когда будет собрана новая информация, в отличие от фиксированного значения, основанного на частотном подходе. Получена надежная вероятностная оценка гидрологических параметров, характеризующих участки рек при наводнениях.
The article proposes the use of Bayesian statistics, a theory in statistics based on the Bayesian interpretation of probability, where probability reflects the degree of confidence in an event that may change as new information is collected, as opposed to a fixed value based on a frequency approach. A reliable probabilistic assessment of hydrological parameters characterizing river sections during floods has been obtained.
ВЛИЯНИЕ ПОКРЫТИЯ ПРОВОДНИКОВРАДИООТРАЖАЮЩЕГО СЕТЕПОЛОТНА НА ЕГО ЭКСПЛУАТАЦИОННЫЕ СВОЙСТВА
Authors: Даутов О.Ш. , Скачков В.А. 
Published: February 2025

Исследовано влияние электрофизических параметров и толщины покрытия проводников радиоотражающего сетеполотна на мощность потерь, коэффициенты отражения и передачи с учётом шага сетки, радиуса сечения и проводимости проводников. Выявлена экстремальная зависимость потерь сетки от радиуса сечения проводников.
The radio reflective mesh metal shell has high reflective and shielding properties with a significantly low material expenditures and is increasingly used in complex communication systems. Creating an adequate computational model is topical for development and design. The aim of the research was a quantitative description of the operational properties of a mesh shell, depending on the geometric and electro physical properties of its conductors and their coatings. In the paper, it is proposed to use a new method for solving the problem in question - the method of volume integral equations (VIE) that does not require explicit application of boundary conditions. The developed electrodynamic model of a metal mesh shell made of coated conductors allowed to carry out novel studies into the sensitivity of output operational parameters (reflection coefficient, transfer coefficient and coefficient of power absorption by a metal mesh shell) to manufacturing errors of local elements of the mesh shell. The practical significance of the research findings is manifested in the fact that there were considered not only the geometry and properties of the main mesh shell conductors, but also the properties of the coatings. In particular, the found relationship between the electrical properties of an individual mesh shell conductor and the operational properties of the mesh shell in total seems rather promising for practical applications. Findings. For the first time, the energy properties of a mesh shell were studied. The calculations of the balance of the incidence, transmitted and absorbed by the shell power were carried out. Additionally, the boundary conditions were satisfied. The error in the balance and boundary conditions for the considered parameter values did not exceed 0.5, that allow to conclude that the proposed model is highly adequate. An extreme dependence of the losses in the mesh on the conductor thickness and the electro physical parameters of the coating was found. It allows to design a mesh shell, keeping its parameters within the limits preventing the occurrence of the electrical breakdown. Conclusions. Research findings allowed us to achieve the main aim of the research that is to evaluate the influence of the structural parameters of the materials of conductors and coatings on the operational properties of the metal mesh shell as well as to establish a relationship between the electrical properties of the coated conductor with the properties of the mesh shell in total.
ИНИЦИАЛИЗАЦИЯ ЦЕНТРАЛЬНОЙ ДЛИНЫ ВОЛНЫ ВОСХОДЯЩЕГО ПОТОКА ТРАНСПОРТНОГО WDM-PON ДОМЕНА РАДИОСЕТЕЙ ДОСТУПА МОБИЛЬНОЙ СВЯЗИ 5G
Authors: Макаров И.А. , Алюшина С.Г. , Анучин В. О. , Гарипов Н.С. , Мисбахов Р.Ш. , Мисбахов Р.Ш. , Сахабутдинов А.Ж. , Морозов О.Г. , Морозов Г.А. , Ильин Г.И. 
Published: February 2025

Для обеспечения плотного и эффективного развёртывания микроячеек удалённых радиостанций RRH сетей доступа мобильной радиосвязи 5G и простой инициализации центральных длин волн связанных с ними оптических узлов ONU волоконно-оптического пассивного транспортного домена с волновым мультиплексированием WDM-PON используются настраиваемые бесцветные лазерные передатчики, что упрощает настройку и управление длиной волны излучения с помощью различных способов. В ONU управление длиной волны в восходящем направлении WDM-PON канала необходимо из-за возможных ошибок в настройке центральной длины волны при первоначальном соединении с оптическим линейным терминалом OLT, связанным с базовой станцией BBU сети доступа 5G, а также из-за дрейфа длины волны вследствие старения лазерного передатчика. В статье представлен новый двухчастотный метод инициализации длины волны в одном из каналов мультиплексора WDM-PON, построенного на упорядоченной волновой решётке AWG, с использованием процесса определения максимального коэффициента амплитудной модуляции биений огибающей компонентов двухчастотного излучения в качестве параметра, указывающего на расстройку длины волны ONU от центральной длины волны AWG. Знак расстройки определяется с помощью исследования фазовых характеристик указанной огибающей. Использование метода позволяет повысить отношение сигнал/шум измерений, проходящих в канале инициализации, их чувствительность и точность настройки на центральную длину волны канала AWG по сравнению с известными методами, использующими процессы прямого детектирования перестраиваемого одночастотного излучения.
Introduction. The passive optical network with wavelength division multiplexing (WDM-PON) is one of the main technologies for designing transport domains of wireless radio access networks C-RAN, that employ the common public radio interface CPRI. Maintaining upstream wavelengths to ensure stable communication from an optical network unit (ONU) connected to a remote radio head (RRH) to an optical line terminal (OLT) connected to a baseband unit (BBU) becomes even more important in WDM-PON if they are employed as a fronthaul in the radio access domains of 5G mobile networks. In 5G networks, the number of microcells and their associated RRH significantly increases. WDM-PON can use fewer optical fibers to connect BBU and RRH in comparison with other technologies.
ИССЛЕДОВАНИЕ И ОЦЕНКА АМПЛИТУДНО-ЧАСТОТНЫХ ХАРАКТЕРИСТИК БИОНИЧЕСКОГО ПРОТЕЗА УШНОЙ РАКОВИНЫ
Authors: Байдаров А.А. , Безукладников И.И. , Майоров П.В. , Южаков А.А. , Асташина Н.Б. , Арутюнов С.Д. 
Published: February 2025

В статье выполнен анализ амплитудно-частотных и временных показателей предлагаемого научно-исследовательской группой технологического решения для реализации проекта по разработке «бионического протеза ушной раковины». Указанные характеристики определяют качественные показатели протеза и зависят от целого ряда факторов: материал и качество встраиваемого вибратора, параметры взаимодействия вибратора и костной ткани, качество электронной элементной базы и ряд других. Задачей работы является оценка влияния отмеченных факторов и их взаимосвязь. Для решения поставленной задачи был создан тестовый стенд, на котором выполнены экспериментальные исследования, на основании полученных данных определен рабочий частотный диапазон исследуемого бионического протеза ушной раковины, а также определены частоты с наибольшим уровнем усиления сигнала.
Introduction. In the framework of current research into the development of bionic prostheses, taking into account previous findings, obtained with the support of the Government of the Perm Territory within the framework of the scientific project "Development of a bionic ear prosthesis based on intelligent and medical 3D technologies", and the outcomes of the studies carried out by the research group, there was made a decision to assess the amplitude-frequency and temporal characteristics of the bionic prosthesis of the auricle, since, prior the implementation of the proposed technological solution it is reasonable to perform a comprehensive estimation of various factors. The paper presents some outcomes of the research and describes the obtained findings. To solve the posed challenges, there was developed a test facility where experimental studies were carried out. Conclusions were supported by the gathered data. The aim of the research was to determine and study the analytical and experimental dependence of the operating time of the system in question on the power of sound reproduction, as well as the dependence of amplitude of the signal on its frequency, to conclude whether the system meets current requirements of the hearing aid. Conclusion.In the framework of the research, it was found that the operating frequency range of the studied bionic auricle prosthesis lies in the range from 100 Hz to 10 kHz, and the frequencies with the highest signal amplification level were determined. The amplitude-frequency characteristics of the proposed solution for a bionic auricle prosthesis and conventional wireless headphones were compared. Experiments showed that the operating time of the studied bionic auricle prosthesis meets to the requirements of the state-of-the-art hearing aid.