bluuebunny/crossref_metadata_2025 huggingface dataset:
МЕТОДОЛОГІЧНІ ПІДХОДИ ДО ІНТЕПРЕТАЦІЇ ФІЗИЧНОГО АБО ФУНКЦІОНАЛЬНОГО СТАНУ СПОРТСМЕНІВ І ФАХІВЦІВ
Authors: Ягупов Василь Васильович
Published: January 2025

З’ясовано гостру необхідність системного та водночас контекстного застосування основних принципів сучасних методологічних підходів до обґрунтування змісту поняття «фізичний стан» і з’ясування його співвідношення з поняттям «функціональний стан». Основна мета: дати методологічне обґрунтування змісту поняття «фізичний стан» та визначити його співвідношення з поняттями «фізіологічний стан», «функціональний стан» щодо фізичної підготовленості та готовності спортсменів до спортивних заходів і фахівців до професійної діяльності. Здійснено за допомогою теоретичних методів дослідження методологічне обґрунтування змісту поняття «фізичний стан спортсменів і фахівців» на провідних ідеях і принципах суб’єктно-діяльнісного, контекстного та термінологічного методологічних підходів до їх фізичної підготовки, у тому числі й у системі вищої професійної освіти та водночас доведено помилковість застосування поняття «функціональний стан». У результаті доведено, що фізичний стан спортсменів і фахівців знаходиться у безпосередній залежності від їх фізіологічного стану, оскільки перше поняття наповнюється конкретним змістом другого поняття, а також вони утворюють таку змістовну і процесуальну послідовність у фізичній підготовці фахівців: «професійна підготовка» – «фізична підготовка як важлива складова професійної підготовки фахівця» – «фізична підготовленість» і «фізична готовність» як важлива складова професійної готовності фахівця до професійної діяльності, а щодо спортсменів вона має таку послідовність: «загальна фізична підготовка» – «спеціальна фізична підготовка» – «фізична підготовка за конкретним видом спорту» – «фізична підготовленість» – «фізична готовність до спортивних змагань за конкретним видом спорту». Доведено, що результатом фізичної підготовки спортсменів і фахівців є їх фізична підготовленість, що проваляється в їх позитивному фізичному стані та актуалізується у фізичній готовності спортсменів до відповідальних спортивних заходів і фахівців до певного виду професійної діяльності, а також до успішної спортивної та професійної самоактуалізації у конкретному професійному та спортивному середовищі. Фізична готовність – це системне та водночас контекстне професійно важливе психічне утворення чи інтегральний результат їх фізичної підготовленості як спортсменів і фахівців, що формує їх відповідний позитивний фізичний стан, який проявляється в цінностях фізичної культури як у конкретного спортсмена та суб’єкта професійної діяльності, теоретичній і поведінково-діяльнісній фізичній підготовленості до спортивних заходів і професійної діяльності, сформованості професійно важливих фізичних якостей, серед яких найважливішим є професійна витривалість і суб’єктність як конкретного спортсмена та фахівця.
The influence of employee engagement and organizational culture on organizational citizenship behavior with job satisfaction as mediation for employees
Authors: Primadona Primadona , Watung Sjeddie Rianne , Putra Riyan Sisiawan , Purnomo Albert Kurniawan , Jondar Aloysius , Ananto Niel
Published: January 2025

In the era of globalization and advanced information transparency, competition between companies has become increasingly fierce due to the large number of products and services that have similar characteristics. This situation creates a competitive and dynamic business climate, where companies must adapt quickly to the changes that occur. This study investigates the impact of servant leadership on employee performance at Mandiri In health, focusing on employee engagement and Organizational Citizenship Behavior as relevant mediating variables. The study used a proportionate stratified random sampling method to determine the sample of respondents, which ultimately consisted of 206 individuals who were analyzed using Structural Equation Modeling (SEM) techniques. The main findings of the study show that servant leadership has a significant direct influence on employee performance, employee engagement, and Organizational Citizenship Behavior in the company. This indicates that service-oriented leadership practices not only influence individual performance, but also contribute to employee volunteering and active engagement in the organization. Employee engagement and Organizational Citizenship Behavior affect employee performance directly, there is no evidence that servant leadership affects employee performance indirectly through the mediation of employee engagement. There is an indication that Organizational Citizenship Behavior acts as a mediator between servant leadership and employee performance, indicating the importance of organizational citizenship behavior in facilitating the positive relationship between leadership and performance. These findings provide a deeper understanding of how leadership strategies can significantly contribute to the achievement of organizational goals in a competitive business environment.
Effects of digital technology capability on enterprise innovation performance: Mediating effects of network responsiveness and moderating effects of environmental dynamism
Authors: Lu Feng , Guo Hui
Published: January 2025

In today’s highly competitive environment, enterprises strive for competitive advantages by actively responding to changes in the network environment through digital technology. This approach fosters continuous innovation and establishes new paradigms by creating new network structures and relationships. However, research on the relationship and transmission mechanisms between digital technology and innovation performance in dynamic environments is still in its early stages, which does not fully address the demands of current social practice. Therefore, exploring the impact mechanisms of digital technology applications on enterprise innovation performance is an important research area. Based on the dynamic capability theory, this paper utilized SPSS 26.0 and AMOS 24.0 software to conduct an empirical analysis of 490 valid samples from the network perspective, exploring the pathways through which digital technology capability influences enterprise innovation performance. The results indicate that (1) digital technology capability is positively correlated with enterprise innovation performance; (2) digital technology capability is positively correlated with network responsiveness; (3) network responsiveness is positively correlated with enterprise innovation performance; (4) network responsiveness plays a mediating role in the impact of digital technology capability on enterprise innovation performance; (5) environmental dynamism positively moderates the relationship between digital technology capability and enterprise innovation performance. This paper enhances the understanding of how digital technology capability influences enterprise innovation performance in dynamic environments, offering new insights for future research. The results suggest that enterprises should focus on enhancing their digital technology capabilities, optimizing network structures, and strengthening network relationships to drive digital innovation.
Taraxacum fagacearum sp. nov. (Compositae, Cichorieae), y notas corológicas sobre otros dientes de león de la península ibérica
Authors: Galán de Mera Antonio , Linares Perea Eliana
Published: January 2025

Atendiendo a diferencias morfológicas respecto a otras especies del norte de la península ibérica y el resto de Europa occidental, se describe la nueva especie Taraxacum fagacearum de los hayedos y robledales de la Cordillera Cantábrica. Se dan a conocer por primera vez T. alatum H. Lindb., T. boekmanii Borgv., T. marklundii Palmgr. y T. subhamatum M. P. Christ., en algunas áreas del norte de España.
A new name in Genista (Fabaceae)
Authors: Saez Llorenç , Blanca Gabriel
Published: January 2025

A new name, Genista ernii L. Sáez & Blanca, is proposed for the recognition of Genistella sagittalis subsp. undulata Ern as a separate species from Genista sagittalis L. The epithet “undulata”can not be used at specific rank in Genista because there is a previous G. undulata Link, which is a taxonomic synonym of G. tridentata L. subsp. tridentata.
Senecio angulatus L.f. (Asteraceae) a new addition to the Moroccan alien flora
Authors: Khamar Hamid , El bakhouch Hasna
Published: January 2025

Senecio angulatus L.f. (Asteraceae), native to South Africa, is reported here as a new non-native plant to the vascular flora of Morocco for the first time. The species’ diagnostic morphological characters, photographic illustration, data on geographic distribution and ecology, and probable invasion pathway are provided and commented.
Index of Shelfmarks
Authors: Duba William
Published: January 2025

An index of all shelfmarks and accession numbers cited in reference to manuscript or early print material in Fragmentology 7 (2024).
Dinamika Konflik Petani dan Peternak di Kecamatan Nisam Kabupaten Aceh Utara
Authors: Yunanda Rizki , Fasya Teuku Kemal , Nasution Abdullah Akhyar , Sartika Ayu , Ningsih Sri Wahyu
Published: January 2025

This study aims to identify the root causes, forms of conflict, and solutions to farmers' resistance against free-grazing livestock practices in Nisam Subdistrict, North Aceh Regency. The conflict is triggered by crop damage caused by free-roaming livestock, differing interpretations of regulations, and land-use changes. This research employs a qualitative approach with an ethnographic method and uses James Scott's resistance theory as the analytical framework. Data were collected through non-participant observation, in-depth interviews, and document analysis. The findings reveal that the conflict significantly impacts agricultural productivity and social relations between farmers and livestock owners. Proposed solutions include restricting grazing areas, improving fences, providing compensation to farmers, and strengthening the role of the government and village officials in enforcing regulations, providing facilities, and monitoring. These findings underscore the importance of stakeholder collaboration in fostering harmonious relations and supporting the sustainability of the agricultural sector.AbstrakPenelitian ini bertujuan mengidentifikasi akar masalah, bentuk konflik, dan solusi atas resistensi petani terhadap praktik peternakan lepas liar di Kecamatan Nisam, Kabupaten Aceh Utara. Konflik ini dipicu oleh kerusakan tanaman akibat ternak lepas, perbedaan pemahaman regulasi, serta alih fungsi lahan. Penelitian ini mengunakan pendekatan kualitatif dengan metode etnografi dan menggunakan teori resistensi James Scott sebagaia kerangka analisis. Data diperoleh melalui observasi non-partisipan, wawancara mendalam, dan analisis dokumen. Hasil penelitian menunjukkan bahwa konflik berdampak besar terhadap produktivitas pertanian dan hubungan antara petani serta peternak. Solusi yang diusulkan meliputi pembatasan area ternak, perbaikan pagar, pemberian kompensasi kepada petani, dan penguatan peran pemerintah serta aparatur desa dalam penegakan peraturan, penyediaan fasilitas, dan pengawasan. Temuan ini menegaskan pentingnya kolaborasi antara pemangku kepentingan untuk menciptakan hubungan harmonis dan mendukung keberlanjutan sektor pertanian.
Exploration of Participation And Psychopathological Risks Associated With Online Games in University Students
Authors: Martínez Raquel Suriá , García-Castillo Fernando , Sánchez Carmen López , Castrillo Esther Villegas , Balleste Carmen Carretón
Published: January 2025

Objective: The aim of this research is to investigate whether there are differences in the prevalence of participation in online gaming and betting between students with and without disabilities. Additionally, it aims to understand the profile of players at risk of addiction to online gaming and betting among these students. Lastly, it seeks to determine if there is a relationship between the risk profile and any type of psychopathological symptoms.
 
Theoretical Framework: The topic of online game abuse among university students and its relationship with psychopathological symptomatology is an area of ​​growing interest in psychology and mental health.
 
Method: 704 university students participated (135 with disabilities and 569 without disabilities) who completed the Massachusetts Gambling Screen questionnaire, 1994), aimed at evaluating gambling addiction and the Psychopathological Symptoms Questionnaire (SAS-45).
 
Results and Discussion: The results reflect a small percentage that participates daily in these spaces, with a greater frequency observed in students with disabilities. Likewise, a positive evaluation is reflected between online participation and some psychopathological symptoms, reflecting a greater association in symptoms related to, for example, restlessness, worry, anxiety, depression and obsessive or compulsive behaviors. The results suggest that the abuse of online games can affect mental health. For students with disabilities, these difficulties can be even greater if they do not have a strong support system to help them manage stress.
 
Implications: It would therefore be essential for universities and relevant authorities to address these issues comprehensively, providing adequate resources for disability research and promoting a culture of wellbeing that discourages problematic gaming activities and promotes healthy entertainment alternatives. and stress management.
 
Originality/Value: This study contributes to the literature on the study of the problems derived from addiction to online games and highlights the need to address and prevent participation in games of chance from the university context. This would allow the establishment of policies that promote responsible use of the game and the creation of prevention tools for vulnerable students.
Management Support and Team Effectiveness as a Determinant of Auditor Performance in South Sulawesi
Authors: Muhaimin  , Fanani Zainal , Tjaraka Heru
Published: January 2025

Purpose: Auditors are important to ensure that the client has complied with the provisions as per the applicable accounting standards and regulations. Audit performance is not only measured by technical ability but the presence of a team and management support is also important in achieving audit goals. The collective and hierarchical work culture in South Sulawesi provides a special context that affects the dynamics of relationships in this study. This study aims to obtain empirical evidence that team support and management support play a role as a determinant of auditor performance both directly and mediatedly.
 
Method: An explanatory research approach is used in this study. Data was collected through a questionnaire distributed to auditors in South Sulawesi. The data was processed using the Partial Least Square (PLS) method, with 46 respondents. Respondents consist of junior and senior auditors with a minimum of two years of experience.
 
Results: The results of the study suggest that the support team greatly affects the management support, but either through management support or directly, the support team does not affect the performance of auditors. These findings suggest that, although management support increases team support, this relationship does not lead to improved auditor performance. The finding of this study is that auditors need deeper expertise and relevant technical abilities to navigate complex audit challenges in the field, which require ongoing training and more targeted individual development. This study shows that while structural support is important in South Sulawesi, it is important for management to support auditor performance with a more holistic approach rather than focusing on formal support, such as providing resources or instructions. While structural support is important, improved auditor performance can be achieved through improved technical competence, better workload management, and greater autonomy in audit decision-making. In a hierarchical work environment like South Sulawesi, auditors are often limited in making decisions independently, so providing autonomy is important to increase the effectiveness and creativity of auditors. To achieve greater and sustained performance improvements, compensation and motivation systems must be created taking into account the contributions of individual auditors and valuing ability and professionalism.
Fragile Harmony: Unraveling the Risks in the Development Mosaic
Authors: Corrêa Solange Rodrigues dos Santos , May Peter Herman
Published: January 2025

Objective: To discuss how economic growth based on the “at any cost” paradigm generates environmental and social risks, with an emphasis on the impacts on situations of vulnerability. It proposes the defense of “place” as an alternative for sustainable development, respecting local history and culture, while analyzing the market from the perspective of economic sociology and ecological economics.
 
Theoretical framework: The research is based on Ulrich Beck's (1999) theory of the risk society, which addresses the global risks of reflexive modernity, highlighting the de-localization, incalculability and non-compensability of risks. Polanyi (1980) contributes to criticizing the logic of the market as the absolute regulator of natural resources. According to Martinez-Alier (2007), ecological economics rejects the idea that all environmental values can be reduced to prices, regulating the limits of planetary sustainability.
 
Methodology: It uses a theoretical-conceptual approach, through a bibliographical review of authors such as Beck, Polanyi and Martinez-Alier, to explore interactions between economic development, socio-environmental conflicts and the valuation of natural resources.
 
Results and Discussion: Uncontrolled economic growth increases inequalities and environmental degradation, disproportionately affecting vulnerable populations. The market, analyzed by economic sociology, reveals social and cultural dimensions, while ecological economics highlights the complexity of valuing natural resources, pointing to the need for preservation policies and social justice.
 
Research implications: A review of economic paradigms is proposed, prioritizing alternatives that respect biodiversity and local cultures. We suggest investigating the role of social movements in promoting inclusive and sustainable policies.
The Implementation of Learning Curriculum of Traditional Islamic Boarding School Darul Huda in the Era of Society 5.0
Authors: Erham As’ari  , Ahmad Zainuri  , Yuniar  , Tasurun Amma
Published: January 2025

The objectives of this study were to analyze the concept of learning curriculum and to implement learning curriculum in Darul Darul Huda Kajang traditional Islamic boarding school by focusing on the basic principle of Islamic scientific values that are being the foundation of Islamic boarding school. The study used a qualitative approach of case study type. Furthermore, the object of the study was the curriculum of Darul Darul Huda Kajang traditional Islamic boarding school. The data collection techniques used observation, interviews and analysis of literature documents. Moreover, the informants were determined based on the hierarchy of Islamic boarding school structure. The results of the study showed that the main learning objective was to build student’s pious character, Islamic knowledge mastery, and knowledge implementation in daily life. Continuously, the learning materials focused on yellow books and several references books including journals, digital books, and learning methods involving sorogan method, bandongan, demonstration method/worship practice, deliberation method of bahtsul masa’il and muhafazhah or memorization method. Then, the assessment emphasized on qualitative aspects such as the ability to understand and explain Islamic teachings and their application in daily life. This research has significant relevance in facing the changing paradigm of education in the digital era. Along with the emergence of the Society 5.0 era, Islamic boarding schools must not only be the guardians of scientific traditions but also be pioneers in combining tradition with technology. The implication of the results of this study is the importance of the openness of boarding schools to new things that become demands and the need for resources that are able to face the times but still preserve the values of local wisdom and traditional boarding school culture.
Perfil epidemiológico de violência contra crianças em um hospital do Recife, Pernambuco
Authors: Santos José Luís Silva dos , Nunes Marília Gabrielle Santos , Neves Giselda Bezerra Correia , Pereira Luane Nayara Barbosa Nunes , Londres Silvia Maria Dalla Nora , Barros Gabriele Maciel Pereira , Cruz Cristiane Maria Santana da , Falcão Marcia Roberta Alves de Barros , Moura Maurício José de , Queiroz Aluska Mirtes de
Published: January 2025

Objetivo: Descrever o perfil epidemiológico dos casos de violência contra crianças notificados em um hospital de referência na assistência materno infantil, no período de janeiro de 2019 a julho de 2024. Métodos: Estudo epidemiológico, descritivo, quantitativo a partir de dados secundários do SINAN, dos casos de violência contra crianças, na faixa etária de 0 a 9 anos. Foram analisadas 72 fichas de notificações a partir da exportação de relatórios do SINAN processados pelo programa Tabwin. Resultados: A faixa etária mais acometida foi a de crianças < 1 ano, com 41 (56,9%), a raça/cor parda teve maior proporção 56 (77,8%), o tipo de violência mais crescente foi a negligência 43 (51,2%), seguido de violência sexual 18 (21,4%), a maioria dos atos foi cometido pela mãe 33 (45,80%), a residência da vítima se destacou como o local de maior ocorrência das agressões 25 (34,7%). Conclusão: A violência perpetrada contra crianças constitui um sério problema de saúde pública, acarretando problemas no desenvolvimento durante a infância. Espera-se que este estudo contribua para sensibilizar e nortear os profissionais quanto à importância da identificação e notificação dos casos de violência.
A review article on the sweet scandal: The truth behind rhodamine B
Authors: Nithish G. , Prashanth S. , Chandru S. , Moushmi A.
Published: January 2025

Cotton candy is a popular treat with various names around the world. It debuted toward the end of the 1800s at the St. Louis World’s Fair. Different names for it were used in distinct parts of the world. Rhodamine B (Rh-B), a basic dye developed in 1887, serves diverse industrial purposes. During the metabolism of Rh-B, cytochrome 450 breaks down, generating oxidative stress and reactive oxygen species. It should be cautiously used due to its possible mutagenic qualities and negative effects on cellular function, including binding to DNA. The article examines the physical and chemical characteristics of Rh-B and its applications, mechanisms, and impacts on brain function, particularly in the cerebellum and brainstem. Studies suggest that exposure to Rh-B may result in functional abnormalities and mutagenic effects. In this review, Rh-B poses significant risks to human health and the environment, necessitating careful consideration and regulatory measures in its usage and disposal.
Die Holzmodifikation als Chance für einheimische Holzarten im Musikinstrumentenbau
Authors:   , Zauer Mario
Published: January 2025

Ein Teil der Arbeit beschäftigt sich mit der Aufarbeitung zur anatomischen und chemischen strukturellen Zusammensetzung von vorrangig einheimischen Hölzern, um schließlich die physikalischen Eigenschaften bzw. deren Differenzen, auch im Unterschied zwischen Laub- und Nadelholz phänomenologisch im Sinne der Struktur-Eigenschafts-Beziehungen zu verstehen.
Die Verbesserung von holzphysikalischen Defiziten wird im Rahmen der Arbeit hauptsächlich mithilfe von physikalischen Verfahren erläutert. Dazu erfolgen ausführliche Beschreibungen zum mechanischen Verdichten quer zur Faserrichtung des Holzes, der thermischen Modifikation sowie der Kombination aus beiden Verfahren. Dazu werden sowohl jeweils die verfahrenstechnischen Parameter und Vorgehensweisen als auch die resultierenden anatomischen, chemischen und den damit verbundenen physikalischen Eigenschaftsänderungen erläutert, insbesondere in Abhängigkeit der Parameteranwendung sowie im Unterschied zwischen Laub- und Nadelholz.
Darüber hinaus werden bereits durchgeführte Studien zur physikalischen, chemischen und biologischen Holzmodifikation zur Verbesserung der akustischen Eigenschaften von Hölzern und deren möglicher Eignung für den Musikinstrumentenbau vorgestellt, zusammengefasst und jeweils bewertet.
Schließlich werden zwei ausgewählte Fallbeispiele beschrieben, welche die Zielsetzung verfolgten, einheimische Holzarten mithilfe der physikalischen Holzmodifikation als Tropenholzersatz in Konzertgitarren und Elektro-Bassgitarren bauteilspezifisch zu verwenden. Der jeweilige Lösungsansatz wurde einerseits durch Einsatz der thermischen Modifikation und andererseits mithilfe einer Kombination aus dem Plastifizieren, mechanischen Verdichten quer zur Faserrichtung und der anschließenden thermischen Modifikation verfolgt. Zur Material- und Instrumentencharakterisierung wurden hierbei verschiedene Testmethoden verwendet und bewertet.
Технология работы с программно-аппаратным комплексом для измерения параметров психофизиологии водителя в процессе управления движущимся автомобилем
Authors: Сергей С.Б. , Судки О. , Анатолий А.С.
Published: January 2025

В статье рассмотрен вопрос, связанный с созданием технологии работы с разработанным авторами программно-аппаратным комплексом для измерения параметров психофизиологии водителя в процессе управления движущимся автомобилем. Представлены результаты имитации применения аппаратуры комплекса в реальных дорожных условиях в различных ситуациях.

The article considers the issue related to the development of technology for working with the hardware and software complex developed by the authors to measure the parameters of the driver's psychophysiology in the process of driving a moving car. The results of simulating the use of the complex's equipment in real road conditions in various situations are presented.
Синтезирование фосфатных связующих с целью структурно-химической модификации жаростойких композитов
Authors: Светлана В.С. , Юлия В.С.
Published: January 2025

Основной целью является разработка научных и практических основ структурно-химической модификации огнеупорных фанеровочных материалов, позволяющей значительно повысить физико-термические показатели футеровки и увеличить её стойкость и долговечность. Замена дефицитных и дорогих компонентов жаростойких бетонов, а именно заполнителей и тонкомолотых добавок местными материалами является важной народно- хозяйственной задачей. Изучение состава и свойств сырьевых материалов, а также образцов огнеупорных обмазок и модифицированных фосфатами изделий проводились с помощью химического и рентгенографического методов. Разработаны составы жаростойких кладочных растворов на алюмокальцийфосфатных (АКФС) и железофосфатных (ЖФС) связующих. Доказана возможность улучшения физико-термических свойств керамических огнеупоров и жаростойких бетонов с помощью их структурно-химической модификации растворами фосфатных связок. Технологию структурно-химической модификации рекомендуется применять при ремонте футеровок тепловых агрегатов, выполненных как из штучных керамических огнеупоров, так и с применением жаростойких бетонов.

The main goal is to develop the scientific and practical foundations of structural and chemical modification of refractory plywood materials, which significantly improves the physical and thermal properties of the lining and increases its durability and durability the replacement of scarce and expensive components of heat-resistant concrete, namely aggregates and finely ground additives with local materials, is an important national economic task. The composition and properties of raw materials, as well as samples of refractory coatings and phosphate-modified products were studied using chemical and X-ray methods. Compositions of heat-resistant masonry solutions based on aluminocalcium phosphate (ACFS) and iron phosphate (JFS) binders were developed. As studies have shown, the absolute values of compressive strength of masonry mortar samples are sufficient for their use in linings. The possibility of improving the physical and thermal properties of ceramic refractories and heat-resistant concretes by means of their structural and chemical modification with solutions of phosphate bonds has been proved. The technology of structural and chemical modification is recommended for use in the repair of linings of thermal units made of both piece ceramic refractories and with the use of heat-resistant concretes.
Разработка оптимальной рецептуры специальных составов тяжелого бетона для ответственных конструкций энергетического строительства
Authors: Иван В.Б. , Сергей А.У. , Сергей А.И. , Иван С.Д.
Published: January 2025

Повышение экологичности и удешевления стоимости основного строительного материала бетона на данный момент является актуальной проблемой, которую решают ученые со всего мира. Конечно же основным подходом к решению данной проблемы является замена части основного и самого дорогостоящего компонента цемента различными отходами топливно-промышленного комплекса. Ввиду того, что данные типы отходов имеют нестабильные свойства и химический состав, сложно организовать их массовое применение. В данном исследовании были разработаны рациональные составы экологичных тяжелых бетонных смесей с доменным гранулированным шлаком ISKENDERUN-2, а также получены бетоны с классами по прочности на сжатие В40, В50 и В60, которые прошли опытно- промышленную апробацию и применены при строительстве ответственного энергетического объекта АЭС «Аккую».

Increasing environmental friendliness and reducing the cost of the main building material concrete is currently an urgent problem that scientists from all over the world are solving. Of course, the main approach to solving this problem is to replace part of the main and most expensive component of cement with various waste products of the fuel and industrial complex. Due to the fact that these types of waste have unstable properties and chemical composition, it is difficult to organize their mass use. In this study, rational compositions of environmentally friendly heavy concrete mixtures with ISKENDERUN-2 granulated blast furnace slag were developed. And concretes with compressive strength classes B40, B50 and B60 were obtained, which were pilot tested and used in the construction of a responsible energy facility of the Akkuyu NPP.
К вопросу построения интеллектуальной информационной системы управления автономными источниками электроэнергии
Authors: Валерий А.А. , Монзер А.
Published: January 2025

Автономные системы электроснабжения становятся все более популярными. Их применение обеспечивает уменьшение зависимосты от традиционных электрических сетей и переход к более устойчивым источникам энергии. Эти системы могут быть построены с использованием различных накопителейэлектрической энергии, солнечных панелей, ветряных турбин и дизельных генераторов. Наиболее просто связь этих источниковможет быть обеспечена по шинам постоянного тока. И в то же время данная схема может поставлять энергию в сеть при полных собственных накопителей электроэнергии. Все это позволяет обеспечить не только требуемую надежность системы электроснабжения, но и ее экономичность.

utonomous power supply systems are becoming more and more popular. Their application provides a reduction in dependence on traditional electrical networks and a transition to more sustainable energy sources. These systems can be built using a variety of electrical energy storage, solar panels, wind turbines and diesel generators. The simplest connection of these sources can be provided by DC buses.And at the same time, this scheme can supply energy to the network with full of its own electricity storage.All this makes it possible to ensure not only the required reliability of the power supply system, but also its efficiency.
Особенности гидравлического расчёта закрытых сетей ливневой канализации из полимерных труб
Authors: Андрей В.Б. , Рабазан А.Г.
Published: January 2025

Своевременное водоотведение ливневых и талых вод с покрытия автомобильных дорог является важнейшей функцией, обеспечивающей их безопасную эксплуатацию, и производится с помощью специальных инженерных сооружений – систем водоотведения открытого и закрытого типа. На участках в населённых пунктах, подходах к водным объектам часто применяют закрытую ливневую канализацию, включающую дождеприёмные и смотровые колодцы, соединяемые при новом строительстве, как правило, пластиковыми трубами. Основой выбора сечения трубы является гидравлический расчёт. Сформулирован итерационный алгоритм гидравлического расчёта участков закрытой ливневой канализации с соединением колодцев полимерными трубами диаметрами 250 мм и более. Ключевые слова: водоотведение, закрытая дождевая канализация, гидравлический расчёт, полимерные трубопроводы

Timely drainage of storm and melt water from the surface of highways is the most important function ensuring their safe operation and is carried out using special engineering structures – open and closed drainage systems. In areas in populated areas and on approaches to water bodies, closed storm sewers are often used, including rainwater inlets and inspection wells, connected during new construction, as a rule, by plastic pipes. The basis for choosing the pipe diameter is hydraulic calculation. An iterative algorithm for the hydraulic calculation of sections of closed storm sewers with the connection of wells with polymer pipes with diameters of 250 mm or more has been formulated.
Анализ методов определения усилий в балках ребристых железобетонных пролетных строений мостов
Authors: Александр Н.М. , Тимур В.Т.
Published: January 2025

В статье рассмотрены наиболее распространенные методы пространственного моделирования пролетных строений, состоящих из сборных железобетонных конструкций. Выполнен анализ полученных данных, на основании которого сделан вывод о пригодности для применения выбранных методов расчета. Ключевые слова: методы расчета балочных мостов, метод внецентренного сжатия, метод «ребристой плиты», метод упругих опор, метод конечных элементов

The article discusses the most common methods of spatial modeling of spans consisting of prefabricated reinforced concrete structures. An analysis of the obtained data was carried out, on the basis of which a conclusion was made about the suitability for the application of the selected calculation methods.
Monitored Supplementation of Vitamin D in Preterm Infants. A Randomised Controlled Trial
Authors:   Junior Resident, Department of Pediatrics and Neonatology, SRCC Children’s Hospital Mumbai, India, Bhalla Arshia , Balsekar Mahesh ,   Senior Consultant, Department of Pediatrics and Neonatology, SRCC Children’s Hospital, Mumbai, India, Monteiro Joewin ,   Clinical Associate, Department of Pediatric and Adolescent Endocrinology, SRCC Children’s Hospital, Mumbai, India, Kulkarni Abhishek ,   Consultant, Department Coordinator and Postdoctoral fellowship Program Director, Department of Paediatric and Adolescent Endocrinology, SRCC Children’s Hospital, Mumbai, India
Published: January 2025

Neonatal vitamin D stores at birth are dependent on maternal levels and neonates receive 50–70% of their mother’s 25-hydroxyvitamin D [25(OH)D]. The incidence of vitamin D deficiency could be up to 55% in pre term infants weighing <1000 g. The aim of this study was to assess the effectiveness of monitored supplementation of vitamin D in a population of preterm infants.

Methods: Preterm infants born at 27–36 weeks of gestation were recruited within the first 7 days of life. Depending on the type of feeding, and after reaching partial enteral feeding or at 7 days of life, vitamin D supplementation of 400 IU and an additional 150–300 IU/kg was included in human milk fortifiers (if fed exclusively with breast milk) or 190 IU/kg in milk formulas. Subjects were randomised to either monitored supplementation group with an option of dose modification based on 25(OH)D levels as per protocol) or standard therapy up to 40 weeks of Post-Conceptional Age (PCA).

The primary outcome measure is the number of neonates with deficiency or excess levels of 25(OH)D at 40 ±2 weeks of PCA. Additionally, 25(OH)D levels were measured at birth, 4 weeks, 8 weeks of age, and 40 +/- 2 weeks of PCA. Secondary objectives were to note incidence of osteopenia, nephrocalcinosis and nephrolithiasis. Serum parameters of calcium phosphorus and alkaline phosphatase were measured.

Results: The 25 OHD levels in both groups were significantly higher at 40 weeks PCA as compared to the baseline in both groups but levels were statistically more significant in monitored group (group A) (p <0.001). 16 of the 30 infants in group B were noted to have vitamin D deficiency at 40 weeks PCA as compared to 2 in group A which was statistically significant (p <0.001). A statistically significant difference was also recorded in calcium, phosphorous and ALP values between 2 groups at 40 weeks PCA (P <0.05). No infant in the monitored supplementation group depicted metabolic bone disease of prematurity.

Conclusion: The results of our study suggest that monitored vitamin D supplementation in preterm infants significantly improves 25 OHD levels and other metabolic bone parameters and decreases the risk of development of metabolic bone disease in premature infants.
Advances in sulfur fluoride exchange for chemical biology
Authors: Hansen Tobias N. , San Segundo Marcos , Mergel Annika M. , Olsen Christian Adam
Published: January 2025

Since their introduction as a new strategy for synthesizing diverse chemotypes, sulfur(VI)–fluoride exchange (SuFEx) transformations have found applications ranging from polymer chemistry and covalent probe development to bioconjugation tools and chemistries for the synthesis of compound libraries. The collection of SuFEx reactions has expanded significantly since their introduction as a concept, comprising functionalities with varying reactivities towards different nucleophiles; thus, enabling the generation of a wide array of sulfur-containing functional groups for the linkage of structural elements in diverse chemotypes. In this review, we focus on the most recent developments in the use of SuFEx chemistry as a means for the preparation of compound libraries for biological screening as well as the introduction of SuFEx hubs into various biomolecules.
Enhancing Electrocatalytic Ammonia Oxidation Using Super-Concentrated Electrolytes
Authors: Jin Yongzhen , Ke Changming , Liu Yang , Wang Jianhui
Published: January 2025

The electrocatalytic ammonia oxidation reaction (EAOR) holds significant promise for energy conversion and wastewater treatment applications. However, even the most active Pt-based catalysts are constrained by high overpotentials and poor stability, which hinder their practical implementation. Despite extensive efforts to improve catalyst performance, progress has remained limited. In this study, we propose a simple yet effective strategy utilizing super-concentrated electrolytes to enhance EAOR performance. By increasing the KOH concentration from 1 M to near saturation, we achieve a nearly 150 mV reduction in onset potential for pristine Pt catalyst (0.43 V vs RHE), which is among the lowest ones reported for EAOR to date. Moreover, this is accompanied by a 6.5-fold increase in peak current density and a nearly 100-fold extension in stable operating time. These substantial enhancements are attributed to the unique solution structure of super-concentrated electrolytes, which markedly differs from that of dilute solutions. In these concentrated media, the hydrogen-bonding network is altered, leading to the formation of highly nucleophilic H₃O₂⁻ species. These species effectively lower the activation energy for NH₃ deprotonation, thereby reducing the onset potential of EAOR and significantly boosting current density. Additionally, H₃O₂⁻ species promote the conversion of EAOR intermediates, preventing their accumulation, and thus improving EAOR stability. This super-concentration strategy is also applicable to non-noble metal catalysts, demonstrating its broad applicability for enhancing EAOR.
Modulation of photoacoustic NIR BODIPY self-assembly in theranostic solid lipid nanoparticles via alpha-group variation: influence on spectral and nanostructural properties
Authors: LINGER Clément , Gobeaux Frédéric , Lordez Mathieu , Coïs Justine , Méallet Rachel , Clavier Gilles , Tsapis Nicolas , Gateau Jérome
Published: January 2025

Loading drug nanovectors with a high quantity of near-infrared organic dye considerably increases their absorption cross-section and favors their detection as theranostic agents with photoacoustic imaging. In a previous study, solid lipid nanoparticles (SLNs) of dexamethasone palmitate were labeled with BODIPY-aniline-palmitate and revealed exquisite photoacoustic properties: NIR absorption cross-section comparable to gold nanoparticules and photoacoustic generation efficiency above 1. However, strong and gradual spectral modifications were observed with the increasing dye concentration. The spectral transformations were linked to dye aggregation in the SLNs, and potential further transformations occuring after in vivo injection may hinder longitudinal imaging applications. In the present study, we introduce BODIPY-julolidine-palmitate, a second dye able to label the SLNs, but without any marked aggregation behaviour. We perform a comparative study of labelled SLNs in various matching concentrations of each dye in terms of optical and photoacoustic properties, showing lower modifications of the spectral behaviour with the dye concentration for BODIPY-judolidine and establishing the influence of the lipid core on the photoacoustic generation efficiency regardless of the dye. Cryo-EM and SAXS-WAXS studies reveal a lamellar arrangement at nanoscale for SLNs labelled with a high concentration of BODIPY-aniline whereas SLNs labelled with BODIPY-julolidine display an amorphous structure. Overall, BODIPY-julolidine-palmitate at moderate label concentration appears a better canditate to label SLNs for theranostic applications using photoacoustic imaging.
Formation and Reactivity of Silicon Oxyhydrides in Nickel Hydrogenation Catalysts Supported on Silica
Authors: Kappé Bram T. , Vogel Robin , Louwen Jaap N. , Baumgartner Bettina , Weckhuysen Bert M. , Monai Matteo
Published: January 2025

Silica is generally regarded as an inert support in the field of heterogeneous catalysis, including hydrogenation-dehydrogenation catalysis, on which hydrogen spillover is debated. Since supported hydrogenation and dehydrogenation catalysts are generally activated in H2 as reducing gas at medium-high temperatures (350–500 °C), we suspected that hydride formation could occur during such catalyst pretreatments. In this work, we investigated silicon oxyhydride (SiHxOy, SiHx for brevity) formation during the reduction pretreatment of a set of Ni/SiO2 catalyst materials using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). We observed two distinct vibrational bands located at ~ 2275 and ~ 2257 cm−1, which we assigned to SiH and SiH2 species, as supported by density functional theory (DFT) calculations. Since these vibrational bands are absent after hydrogenation of pure silica, we propose that the formation of hydrides was caused by hydrogen spillover from Ni metal nanoparticles supported on silica. The decrease in the band areas with rising temperature was used in a van t ‘Hoff plot to yield enthalpy values of ~ 26 and ~ 42 kJ/mol for the apparent reaction of hydride species, suggesting an equilibrium with IR-inactive or very mobile species. The reactivity of the SiHx species was also investigated, by dosing methanol, water and CO2 as probe molecules on the pre-reduced Ni/SiO2 catalysts. Methanol reacted the fastest with the hydride species, followed by water, while CO2 did not show any interaction with the hydrides. We anticipate this work will contribute to changing the view of silica as an inert support material, and to the understanding of H spillover in more general.
Optimizing Solid-Phase Protein Synthesis: A Systematic Study of Solid Supports and Mild Cleavage Techniques
Authors: Han Jianyi , Dang Bobo
Published: January 2025

Solid-phase chemical ligation (SPCL) is a powerful method for simplifying protein synthesis, offering streamlined workflows, improved efficiency, and higher yields. However, the broader application of SPCL, particularly for synthesizing larger proteins, is hindered by the complexity of orthogonal protection strategies, suboptimal solid supports, and limited availability of compatible cleavable linkers. In this study, we systematically evaluated solid supports and cleavable linkers to optimize SPCL. By combining the low loading-controlled pore glass (CPG-2000) support with a nickel-cleavable SNAC-tag linker, we developed an optimized system that enabled the successful assembly of five peptide fragments through SPCL. his approach facilitated the efficient synthesis of a 130-amino-acid de novo designed protein with a yield of approximately 25%.
Photoconductivity (Dark Current & Photo Current)
Authors: Sahaya Infant Lasalle B. , Pandian Muthu Senthil , Ramasamy P.
Published: January 2025

Photoconductive crystals have been employed in various photo-detecting devices such as charge coupled devices, photoresistors and infrared-based photonic systems. The dark and photocurrent properties of single crystals grown by the SEST, SR, or other methods were analyzed using a Keithley 485 picoammeter under a DC electric field at room temperature, with a vacuum level of 1 × 10-7 m bar. Generally, for photoconductivity the crystal is coated with silver on opposite faces, and positioned between two copper electrodes and connected in series with a picoammeter. Initially, the dark current was measured without any exposure to light, across the applied field ranging from -5 to +5 V. Light from a 100 W halogen lamp containing iodine vapor was then focused on the sample using a convex lens, and the photocurrent was subsequently recorded. If the photocurrent is greater than the dark current it is called as positive photoconductive nature of the crystal, and if the dark current is greater than the photocurrent it is called as negative photoconductive nature. In this chapter, we examine how single crystals exhibit positive and negative photoconductivity, and explore their various applications. Crystals are used in a rangeof fields, including photodetectors, solar cells, optoelectronic devices, and photonic systems, where their photoconductive properties play a critical role.
Characterization of Thermoelectric Crystals
Authors: Sivakumar M. , Annie Victoria Rose R. , Sidharth D. , Yalini Devi N. , Arivanandhan M. , Jayavel R. , Hayakawa Y.
Published: January 2025

Thermoelectrics is a promising technology for converting the thermal energy into electrical energy, providing an alternative way for power generation instead of burning the fossil fuels. A thermoelectric device is a solid-state device, consists of p-type and n-type semiconductor materials. The performance of a thermoelectric material can be determined based on the Figure of merit. In this chapter, the origin and fundamental laws related to thermoelectrics are described. The classification of thermoelectric materials and thermoelectric parameters are described. Moreover, the thermoelectric characteristics of a few semiconductor crystals are discussed.