bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH MODEL PEMBELAJARAN INOVATIF DAN INTERAKTIF BERBASIS INKUIRI TERSTRUKTUR TERHADAP HASIL BELAJAR SISWA KELAS 4 SDN MAUMARU DALAM MATERI PERBANDINGAN DAN PENGURUTAN PECAHAN
Authors: Pedi Melkianus Domu
Published: December 2024

Penelitian ini bertujuan untuk mengembangkan dan mengimplementasikan model pembelajaran interaktif yang inovatif berbasis inkuiri terstruktur untuk meningkatkan hasil belajar dalam membandingkan dan mengurutkan pecahan untuk siswa kelas 4 di SDN Maumaru. Model pembelajaran ini dirancang dengan mengintegrasikan kearifandan budaya lokal, termasuk tradisi berbagi pada acara-acara besar dan penggunaan produk lokal (pepaya,Ubi Kayu, Labu Lilin,dan pisang) sebagai sarana pembelajaran. Prosedur penelitian melibatkan pengelompokan siswa berdasarkan gaya belajar mereka (auditori, visual, dan kinestetik) dan kemampuan awal yang diidentifikasi dalam asesmen awal. Sebanyak 22 siswa,12 siswa laki-laki dan 10 siswa perempuan,dibagi menjadi 5 kelompok yang seimbang. Hasil asesmen awal menunjukkan bahwa 9 siswa berada dalam kategori belum berkembang, 9 siswa mulai berkembangdan 4 siswa sudah berkembang. Pelajaran dilaksanakan dalam 6 JP (35 menit/JP) dan media pembelajaran seperti video dan alat peraga dengan bahan lokal disediakan. Guru juga menggunakan layer in-focus untuk mendukung penjelasan konsep pecahan dan membantu penyelesaian lembar kerja peserta didik (LKPD). Setelah pelaksanaan penelitian, penilaian formatif dan sumatif menunjukkan peningkatan yang signifikan dalam pemahaman siswa.Hasil penilaian akhir menunjukkan bahwa hanya satu siswa yang masih berada dalam kategori kurang berkembang dalam memahami konsep membandingkan dan mengurutkan pecahan,dua siswa mulai berkembang, dan 19 siswa menunjukkan kemajuan yang sangat baik. Penelitian ini menyimpulkan bahwa penerapan model pembelajaran interaktif yang inovatif berdasarkan inkuiri terstruktur dapat secara signifikan meningkatkan hasil belajar siswa dan mengembangkan keterampilan berpikir kritis dan kreatif. Sebagai tindak lanjut, model ini dapat diterapkan secara lebih luas dengan berbagai materi lain yang diadaptasi dari media lokal untuk mendukung pembelajaran yang lebih kontekstual dan bermakna.
Efektivitas Konten Instagram @meovv_idn di Kalangan Mahasiswa Sekolah Vokasi IPB University Terhadap Pemenuhan Kebutuhan Informasi Penggemar
Authors: Gunadi Sabila
Published: December 2024

Media sosial, sebagai platform online yang diakses melalui internet, telah menjadi bagian integral dari kehidupan remaja, salah satunya melalui Instagram. Masalah yang diangkat dalam penelitian ini adalah efektivitas penyebaran informasi melalui Instagram di kalangan penggemar grup MEOVV. Penelitian ini bertujuan untuk menganalisis dan mengevaluasi kualitas konten pada akun Instagram @meovv_idn, dengan fokus pada aspek relevansi, daya tarik, dan kelayakan menurut persepsi audiens. Metode yang digunakan dalam penelitian ini adalah pendekatan deskriptif kuantitatif, dengan populasi dari penggemar grup MEOVV. Sampel diambil menggunakan Rumus Slovin dengan margin of error 15%, sehingga diperoleh 43 responden dari Departemen Sekolah Vokasi IPB University. Data dikumpulkan melalui studi literatur dan kuesioner yang relevan. Hasil penelitian menunjukkan bahwa efektivitas penyebaran informasi memperoleh nilai rata-rata 3,20, sedangkan kualitas konten memperoleh nilai rata-rata 3,02, keduanya masuk dalam kategori “efektif”. Simpulan dari penelitian ini menegaskan bahwa konten yang diposting oleh akun tersebut cukup efektif dalam mempengaruhi pemahaman, minat, dan perilaku audiens terhadap informasi yang disampaikan.
Impact of Artificial Intelligence in Building Supply Chain Resiliency
Authors: Kumawat Priyank
Published: December 2024

Supply chains are frequently exposed to disruptions, which can be either positive, driven by technological advancements, or negative, caused by natural and man-made disasters. This study aims to explore the possibilities and implications of building supply chain resilience through AI-driven AR/VR simulations. In light of the disruptions experienced during the COVID-19 pandemic, there has been a growing interest among both researchers and practitioners in the role of digital technologies in enhancing end-to-end visibility within supply chains and their potential for boosting resilience.The study provides insights into how leveraging the dynamic capabilities of supply chains through AI technology can strengthen resilience. It offers a forward-looking perspective on how emerging technologies will shape modern supply chains and play a crucial role in improving their resilience. The article underscores the transformative potential of AI, highlighting its ability to equip supply chains to better withstand disruptions and mitigate associated risks.
Political Mediatization in Memes: A Netnography Study on Ganjar Pranowo & Mahfud MD Candidate Memes for The 2024 Period
Authors: Pandutama Alfa , Habsari Almira Kusumowardani , Achmad Azizah Laurensia , Hidayat Muhammad Alviansyah
Published: December 2024

Memes as digital content with humorous characteristics are an important part of online interaction on social media. The existence of memes in politics acts as a rhetorical tool and discursive argument, with its use to convey messages with political content. The use of memes as political mediatization in the 2019 elections in Indonesia as an expressive form of the success team of the Presidential and Vice Presidential candidates at that time. This study examines political mediatization through memes that occurred in the candidates Ganjar Pranowo and Mahfud MD in the 2024 Indonesian President and Vice President elections. Using a netnographic method, the research identifies five categories of meme usage- pure humor, ridicule, general political information, candidate information, and expressions of support.. These memes, originally light-hearted, evolved into strategic tools shaping a relaxed and approachable political image. This study highlights how media logic has transitioned into social media logic, prioritizing personalized content and user engagement to influence public perception. This transition underscores the effectiveness of memes in altering political narratives and fostering voter interaction during campaigns.
Reformulation of Legal Norms Regarding the Spread of Criminal Radicalism Through Social Media in Indonesia
Authors: Nugroho Marsudianto Dwi , Santiago Faisal
Published: December 2024

The spread of radical ideology through social media has become a serious challenge that requires more effective legal attention and action. This research proposes the need for a revision of existing regulations, particularly in defining radicalism and establishing strict actions as radical offenses, as well as the formation of implementing regulations that support the monitoring of harmful content. Furthermore, the importance of social media platforms' responsibility in managing radical content is outlined as part of the cooperation between the government, digital service providers, and society. This research also emphasizes the need for a comprehensive implementation strategy and the active role of law enforcement agencies to ensure effective law enforcement, aimed at creating a safer environment free from the influences of radicalism.
Legal Reform of Mediation Towards Fair Industrial Conflict Resolution
Authors: Kristiani Enny , Santiago Faisal
Published: December 2024

Legal reform of mediation in the resolution of industrial conflicts is a crucial concern given the increasing complexity of disputes between workers and employers. The mediation process, which is expected to serve as an effective and fair middle ground, often encounters obstacles due to regulatory weaknesses and the lack of understanding and trust from the parties involved. This research aims to evaluate the effectiveness of the current legal framework for mediation and propose solutions for improvements in order to achieve more equitable conflict resolution. This study employs qualitative methods with both normative and empirical approaches. Data is collected through literature reviews, legal analysis, and interviews with relevant stakeholders such as mediators, employers, and workers. The research findings indicate that although mediation has significant potential in resolving industrial conflicts, weaknesses in implementation and regulatory oversight often render this process suboptimal. Therefore, legal reform is necessary, encompassing the enhancement of mediator capacities, the revision of regulations pertaining to the rights and obligations of the parties, and the strengthening of monitoring and evaluation mechanisms. This reform is expected to improve public trust in mediation and create fair and equitable resolutions for all parties.
Transformation of Consumer Protection Against Loss of Customer Funds in Digital Banking
Authors: Azis Miftakul , Santiago Faisal
Published: December 2024

Digital banking has become a major trend in the global financial sector, offering ease of access and efficiency for customers. However, this development also brings new risks, particularly related to the loss of funds due to cyber attacks. This research analyzes the legal vacuum in the regulations protecting customers of digital banking in Indonesia, particularly as regulated by POJK No. 12/POJK.03/2021 and POJK No. 13/POJK.03/2021. Despite the existing legal framework, this study identifies the weak legal protection for customers regarding the risk of losing funds due to cyber attacks, as well as the lack of clarity regarding the bank's responsibility in such situations. By examining national and international case studies and providing recommendations for regulatory enhancement and security standards, this study aims to contribute to the ongoing efforts to protect consumers in the increasingly complex context of digital banking.
Innovation of Business Models in the Digital Economy: A Case Study of Start-up Companies
Authors: Ningsih Rita , Murti Wahyu
Published: December 2024

This research aims to analyze the impact of digital technology adoption on the business performance of startup companies in Indonesia. Using a random sampling method, five startups were selected as respondents, and data were collected through a questionnaire that has been tested for validity and reliability. The validity test results show that all questionnaire items are valid, with the calculated r value greater than the r table value. The reliability test using Cronbach’s Alpha coefficient produces a value of 0.78, indicating that the research instrument is consistent and can be reused. Descriptive analysis reveals that the majority of startups operate in the fintech, edutech, and healthcare sectors, with most having utilized technologies such as artificial intelligence (AI) and data analytics. The findings indicate that digital technology adoption positively impacts business performance, especially in enhancing operational efficiency and expanding market reach. Startups that maximize the integration of digital platforms experience significant growth in terms of user numbers and revenue. However, challenges such as cyber security, the digital divide, and marketing competition remain major obstacles. This research also emphasizes the importance of government policies in supporting a conducive digital ecosystem so that startups can overcome these hurdles and continue to innovate. With the right strategies and optimal utilization of technology, startups in Indonesia have great potential to grow and contribute significantly to the national digital economy.
SUPPORTING FRAMES OF THE LEADING INDUSTRIAL COMPLEXES OF THE MANUFACTURING INDUSTRY OF THE FAR NORTH OF RUSSIA
Authors: Maryakhin Vladimir M. , Chasovskii Vladimir I.
Published: December 2024

The development of the northern territories of the Russian Federation is a crucial element of the country’s sustainable development, as emphasized by the Strategy for the Development of the Arctic Zone of the Russian Federation until 2035. In light of the active policy of import substitution, which is a key component of the national goal of “Technological Leadership,” increasing attention is being paid to the manufacturing industry, including in the Far North. This study analyzes data on the operations of manufacturing enterprises in the cities of the Far North and equivalent regions from 2016 to 2022, utilizing municipal and state statistical sources as well as databases such as SPARK-Interfax, zavody.rf, and fabricators.ru. As a result, the sectoral structure of the manufacturing industry in the Far North was identified, forming the basis for a proposed classification of industrial hubs divided into four categories. The study also highlights general trends in the development of the supporting frameworks of the manufacturing industry in the northern territories of Russia in recent years. The findings indicate that the manufacturing industry in the Far North has undergone minimal transformation in recent years, with changes primarily limited to the modernization of existing facilities or the closure of unprofitable enterprises.
STUDYING THE FEATURES OF SOIL COVER AND BIORECLAMATION OF COAL DUMPS
Authors: Osintseva Maria A. , Dyukova Evgenia A.
Published: December 2024

Industrial dumps serve as natural habitats for numerous biocenoses due to the specific features and directionality of early soil formation processes. The purpose of this study is to investigate the characteristics of soil cover and bioremediation on coal dumps. It is demonstrated that the lithological heterogeneity of disturbed territories in Kuzbass is influenced by mining technologies, which directly affect the methods of coal extraction. The study establishes that eluviated material on technogenically disturbed lands shows significant variations in physical and chemical properties depending on the conditions of formation. These differences determine the varying quality of the resulting soils and underscore the need for reclamation efforts. Phytocenoses at later metastable stages of development exhibit impoverished composition and structural deficiencies upon reaching this stage. It is proven that the impact of vegetation on young soils, supplemented by fertilization, can lead to the accumulation of biophilic elements in the upper soil profile. The presence of rare earth and radioactive elements in anthracite slows the development of biota on dump surfaces due to their potentially toxic effects on microorganisms and vegetation. Bioremediation is shown to focus on restoring soil formation processes, enhancing soil self-purification capabilities, and re-establishing phytocenoses. The selection of plant species for reclamation is based on their ability to thrive in technogenically disturbed landscapes. These species should belong to a group of resilient plants with high phytoremediation potential, such as Pinus sylvestris, Picea pungens, Larix decidua, Physocarpus opulifolius, Betula pubescens, Populus nigra, Caragana arborescens, Rosa rugosa, and Elaeagnus commutata. These species are characterized by high resistance to adverse factors and are considered promising for biological reclamation of technogenically disturbed landscapes.
MOLECULAR GENETIC IDENTIFICATION OF BACTERIAL ISOLATES — XYLANASE PRODUCERS
Authors: Dyshlyuk Lyubov S. , Agafonova Svetlana. V. , Kazimirchenko Oksana V.
Published: December 2024

Microbial xylanases are widely used across various industries, making the search for new microorganisms capable of producing these enzymes a highly relevant task. A source for isolating strains with xylanolytic activity is plant-­based materials rich in hemicelluloses, such as lignocellulosic biomass. In the Kaliningrad region, such materials include the meal of industrial hemp seeds (Cannabis sativa), seed hulls and seeds of white lupine (Lupinus albus), unroasted soybean hulls, roasted soybean hulls, granulated soybean hulls, and seeds of common horse chestnut (Aesculus hippocastanum). Among the 23 bacterial isolates obtained from the mentioned lignocellulosic materials, the highest xylanolytic activity was observed in nine strains. Based on morphological and staining characteristics, these strains were identified as Gram-positive spore-­forming rods. Molecular genetic identification using the 16S rRNA method revealed that the strains belong to the species Peribacillus acanthi, Bacillus cereus, Bacillus zanthoxyli, and Bacillus badius. The identified microbial strains have the potential to be used as industrial producers of highly active xylanases, enabling the biodestruction of lignocellulosic biomass to produce valuable products.
La inteligencia artificial generativa como herramienta de apoyo en la personalización del aprendizaje: Implicaciones y desafíos éticos en el aula para estudiantes de EGB
Authors: Salazar Sisalima Martha Cecilia , Lapo Fernández Jury Marisela , Romero Sobenis Félix Fernando , La Rosa Navarro Yadilka
Published: December 2024

Este artículo explora el uso de la inteligencia artificial generativa (IAG) como una herramienta educativa para personalizar el aprendizaje de los estudiantes de Educación General Básica (EGB). El objetivo principal del estudio es analizar las implicaciones y desafíos éticos de su implementación en el aula, con el fin de entender cómo la IAG puede facilitar la adaptación de los contenidos a las necesidades individuales de los estudiantes. Los resultados destacan que la IAG ofrece un gran potencial para personalizar el aprendizaje, al permitir que los docentes diseñen experiencias educativas adaptadas al ritmo y estilo de aprendizaje de cada estudiante. Sin embargo, también se identifican riesgos éticos relacionados con el uso de esta tecnología, como el refuerzo de sesgos en los algoritmos, la pérdida de habilidades cognitivas esenciales y las preocupaciones sobre la privacidad de los datos de los estudiantes. Los principales hallazgos sugieren que, aunque la IAG puede mejorar la educación, su implementación debe hacerse con precaución, garantizando que se utilice de manera ética y que se protejan los derechos de los estudiantes.
La influencia de la carga de tareas escolares en el bienestar emocional de los estudiantes en entornos educativos.
Authors: Hallo Caiza Eduardo Paúl , Toapanta Toapanta Ana Rocío
Published: December 2024

El estudio trata sobre el impacto de la carga de tareas escolares en el bienestar emocional y las interacciones sociales de los estudiantes en una institución educativa fiscal. El problema radica en que las tareas asignadas no siempre consideran las capacidades y necesidades de los estudiantes, afectando aspectos emocionales y sociales del alumnado, reduciendo su motivación y tiempo para actividades personales y familiares. El objetivo principal fue analizar cómo esta dinámica influye en el estrés, la ansiedad y las relaciones interpersonales de los estudiantes. La metodología combinó enfoques cuantitativos y cualitativos, utilizando encuestas aplicadas a 120 estudiantes de Básica Superior. Los datos se recopilaron mediante un cuestionario estructurado con escala Likert, permitiendo medir dimensiones como cantidad de tareas, tiempo disponible y bienestar emocional. Los resultados muestran que un 45% de los estudiantes se siente frecuentemente estresado por las tareas, y un 35% menciona que estas limitan su tiempo para actividades sociales, evidenciando un impacto significativo en su bienestar. El estudio concluye que la carga excesiva de tareas no solo genera estrés y ansiedad, sino que también afecta el sentido de pertenencia y las interacciones sociales en el entorno educativo. Se recomienda replantear las prácticas pedagógicas, diseñando tareas más equilibradas y promoviendo programas de apoyo emocional. Estas acciones pueden mejorar tanto el aprendizaje como el bienestar integral de los estudiantes, creando un ambiente más inclusivo y colaborativo.
METODOLOGÍA ACTIVA PARA INCREMENTAR EL RENDIMIENTO ACADÉMICO DE ESTUDIANTES EN INSTITUTOS DE EDUCACIÒN SUPERIOR TECNOLÓGICOS DEL PERÚ
Authors: Diestra Vásquez Julio Ermógenes
Published: December 2024

The research developed aimed to: Identify the relationship that exists between active methodology and the academic performance of higher education students at technological institutes in Peru. Methods: It is an applied study, at a correlational descriptive level, worked with a sample of 100 students and 10 teachers from the technological institute, 2 questionnaires of 20 questions each, previously validated, were used as instruments. For the normality test, Kolmogorov-Smimov was applied, which indicated that the population has a non-normal distribution, so non-parametric tests such as Spearman's Rho were used. Results: 60% of those surveyed stated that the active methodology is of a regular level, 65% of those surveyed stated that the academic performance of the students is in process Conclusion: it was concluded that there is a positive relationship between high reliability between both variables, with a correlation of 0.845 between the active methodology and academic performance.
Interactive textbook for algorithms and data structures
Authors: Marinković Vesna , Marić Filip
Published: December 2024

In this paper, an electronic and interactive version of the textbook for the course "Construction and Analysis of Algorithms", which is held at the Faculty of Mathematics, University of Belgrade, is presented. The material covered in the textbook includes advanced data structures, graph algorithms, algebraic algorithms, string processing algorithms, and geometric algorithms. What makes this textbook different from traditional textbooks is its interactive component, which is implemented in JavaScript language using modern Web technologies. This feature enables students to understand better how described algorithms and data structures work. Namely, besides being able to follow the execution of the algorithm step-by-step, the textbook often asks readers to independently carry out certain procedures, controlling the correctness of the results. In this way, students can gain information on how well they understand the algorithm. This is consistent with a constructivist approach to teaching in which the student does not acquire knowledge only passively but must have an active role during the entire teaching process. Since algorithms and data structures play an essential role in computer science studies at all faculties, we believe this textbook can be useful for computer science students of different study programs studying in the Serbian language. The textbook, together with its interactive Web version, is freely available online. Libraries developed for the implementation of this textbook are also freely available and can be used to develop similar textbooks for other fields of computer science or mathematics.
Learning through games in mathematics teaching
Authors: Teokarević Dalibor
Published: December 2024

Of all the human activities, the game gives a person the most pleasure. Whether it's sports, computer, social, educational or other games, people are happy to get involved in their implementation. As the game is one of the most important needs of children, it is also the most effective way to bring the teaching contents closer to the students. One learns through the game, because based on the rules, settings and own skills, existing and new concepts and relationships between them are defined. That is why learning through play is one of the most productive teaching methods, which encourages students' creativity, logical thinking, emotional expression and motivation for work and learning. Learning through play also affects the all-round development of the student's personality, as it encourages the child's cognitive, emotional, social and physical development. In this way, it comprehensively prepares him for his future life in the world of adults.
Spontaneous development of mixed stands of fir, spruce and beech on Mt. Tara
Authors: Obradović Snežana , Medarević Milan , Pantić Damjan , Šljukić Biljana , Petrović Nenad , Borota Dragan , Popović Aleksandar
Published: December 2024

The main objective of this study is to analyze the structural production and dynamic changes of mixed forests of fir, spruce and beech on Mt. Tara, in permanent sample plots which were exempt from the regular management over a period of more than 60 years (1955-2017). The results of the research indicate that during the analyzed period mixed forests of fir, spruce and beech have undergone a number of changes in structural and production terms. The significant presence of trees of large dimensions (volume accumulation) slowed down the developmental dynamics of these stands and made regeneration and recruitment difficult, which had a negative impact on their structural development and, in general, on the stability of these stands. The results show that selection forests are possible to achieve only with a permanent management approach and adherence to the modern principles of close-to-nature forest management. In this sense, selection cutting in the context of close-to-nature forest management is imposed as a means of accelerating the dynamics of development of these forests, repairing their structural development (by achieving and preserving their selection structure), ecological stability and functional values. On the contrary, the absence of activity and spontaneous development of these stands leads to a general devitalization and a deviation from the desired goals.
A contribution to the knowledge of the mites (ACARI) fauna of the hornbeam in Serbia
Authors: Mladenović Katarina , Vemić Aleksandar , Hadrović Sabahudin , Kabiljo Milan , Jović Đorđe
Published: December 2024

This paper provides an analysis of the biodiversity of species within the families Phytoseiidae and Tetranychidae found on common hornbeam (Carpinus betulus) in both forest and horticultural habitats. For the first time worldwide, three predatory mite species from the family Phytoseiidae-Amblyseius andersoni, Euseius finlandicus, and Phytoseius soleiger-have been identified on hosts from the family Betulaceae, specifically within the genus Carpinus and the species Carpinus betulus. Additionally, the presence of a phytophagous mite species, Eotetranychus carpini, from the family Tetranychidae has been documented on hornbeam.
The possibility of creating an educational trail inspired by the medicinal and useful properties of the shrub species present in the Arboretum of the Faculty of Forestry
Authors: Gajanić Olga , Jović Biljana , Bjedov Ivana , Nešić Marija
Published: December 2024

Vegetation supports the life of many other organisms, ensures the development of ecosystem functions, and regulates geomorphological and atmospheric processes. Important coeenobionts of different types of vegetation are medicinal plants. Medicinal plants represent a significant, both biological and economic resource of every country. People use them as a source of active substances that have an important impact on human health, and at the same time they find their application in landscape design because they are characterized by great decorativeness. The aim of this work is the analysis of woody shrub species in order to determine the possibility of forming an educational trail in the Arboretum of the Faculty of Forestry, with a focus on medicinal, aromatic and edible species, as well as the research of existing biomimetic solutions, products and technologies based on plant species present in the Arboretum of the Faculty of Forestry in Belgrade.
The importance of applying the circular bioeconomy concept in forestry
Authors: Brašanac-Bosanac Ljiljana , Čule Nevena , Đorđević Ilija , Češljar Goran , Lučić Aleksandar , Šumarac Predrag , Ćirković-Mitrović Tatjana
Published: December 2024

Over the past few years, EU countries have been intensively adopting strategic documents and policies that guide and promote processes towards a circular bioeconomy. One of them is the European Green Deal, which was presented in December 2019. It is a package of policy initiatives, which aims to transform the EU into a fair and prosperous society with a modern, competitive economy based on efficient resource consumption and the protection of the environment and human health. The ultimate goal is to reach climate neutrality by 2050. The concept of circular bioeconomy has been recognized as an important strategic concept for the green transition. In this context, the forest-based sector plays a key role in ensuring sustainable and balanced environmental, economic, and social development using bio-based resources. Application of the circular bioeconomy concept requires innovation in forestry. The end result will be healthier ecosystems that consume and waste fewer resources. However, integrating the concept of circular bioeconomy into forestry is a challenge due to the numerous conflicts and interests in space. In the coming period, innovative methods in the use of forestry biomass should be more actively promoted in Serbia, including circular business models, by increasing the efficiency of scientific, technical and financial support for innovations in this area. The key solution is in the knowledge transfer.
Forest fires as a factor of ecological safety and their implications for sustainable development
Authors: Đorđević Goran , Petković Martina , Tomić Marko , Mijatović Andreja
Published: December 2024

Ecological safety represents an important segment of every country, with each nation striving to strengthen it by reducing risks that can compromise it. Forest fires are a significant factor of ecological safety due to their capacity to disrupt ecosystems by generating a range of harmful by-products. By reducing the frequency of forest fires and the resulting damage-both material and environmental-ecological safety can be enhanced. Ecological safety, in turn, contributes significantly to the sustainable development of regions, given the broad impacts of forest fires on natural and human systems.
MAG welding of the tram-rail 5g2 to a Cogidur block with a copper backing
Authors: Mitić Dragan , Jović Nikola , Gruber Davor
Published: December 2024

The paper presents the technology of MAG welding of the tram switch of butt joint of tram-rail 54G2 (W.N.1.0623, group 11.3) to a block of Cogidure (W.N.1.8715, group 3.2) using a solid wire and a copper backing. In addition, an overview of non-destructive testing of the welded joint is given (VT, PT, UT), as well as macrostructure and hardness was given. Two qualification tests were performed, one of which passed the fracture test with variable load and frequency, and the other passed the macro-test.
The Role of Learning Organization and Talent Management in the Effect of the Transformational Leadership Styles of School Principals in Innovation Management in their Schools
Authors: Hiçyılmaz Yasin , Sahin Semiha
Published: December 2024

This research aims to examine the mediating role of learning organization and talent management in the impact of transformational leadership levels of school principals on innovation management according to the perceptions of teachers working in vocational and technical anatolian high schools. In accordance with the purpose and approach of the study, quantitative research method was used in the research. The sample consisted of 30 official vocational and technical anatolian high school principals and 562 teachers. The research data were collected with The Scale of Leadership Styles of School Principals, The Scale of Talent Management in Education, and The Scale of Learning Organization in Schools and The Scale of Innovation Management in Schools. Basic statistics and Structural Equation Modelling (Path diagram and fit indices) were used to analyze the data. The data gathered was analyzed with programs of SPSS 23.0 and AMOS. The research findings showed that there is a significant relationship between the transformational leadership styles of school principals and innovation management according to teacher perceptions, and that there is a partial mediating role of learning organization and talent management in this relationship. According to this, it can be concluded that school principals with a high level of transformational leadership will exhibit a higher level of innovation management characteristics in their schools with teachers with a high level of learning organization and talent management.
Marine algae: a sustainable and eco-friendly aqua-feed resource for the replacement of fish meal and fish oil
Authors: S Akhila , Saivenkat Chundru , Varghese Tincy , Mohanta K. N.
Published: December 2024

As wild fish stocks are dwindling due to overfishing and ecosystem imbalances, the aquaculture industry faces significant sustainability challenges. Fish oil and fish meal, traditionally vital for aquafeeds, are derived from these dwindling wild resources. To address these issues, there is a growing shift towards alternative ingredients such as plant-based sources, algae, and insect meals. Marine algae, rich in w-3 fatty acids like EPA and DHA, present a promising alternative to fish oil and meal. They offer high-quality proteins and essential amino acids, though they require supplementation to match the nutritional profile of traditional fish feeds. Algal oil, particularly from microalgae like Schizochytrium and various photoautotrophic species, demonstrates the potential to maintain feed quality while reducing environmental impacts. Algae cultivation is more sustainable, with minimal land use and carbon sequestration capabilities. However, high production costs and complex bioreactor requirements are significant hurdles. Advances in bioreactor technology, strain optimization, and integration with renewable energy sources could enhance cost-effectiveness and efficiency. This review explores the current state of algal alternatives in aquafeeds, examining their nutritional benefits, environmental advantages, and economic challenges. The development of these alternative feed sources is crucial for reducing dependency on wild fish, ensuring the sustainability of aquaculture, and meeting global seafood demand.. KEYWORDS :Sustainable Aquaculture, Aqua-feed, Marine Algae, Alternative Feed Ingredients, Algal Oil, Fish Meal, Fish Oil, Replacement, Fatty Acids, Fish Nutrition
Gillnet selectivity of commercially important fish Labeo rohita, Hamilton,1822 and Catla catla, Hamilton,1822 in kosi river, Madhepura, Bihar
Authors: Kumar Manoj , Kumar Arun
Published: December 2024

Application of fishing gears in fishery is the result of experiences gained over a long period of time. Every water body has a unique pattern of fishing activity. The present study was aimed to evaluate the selectivity of gillnets and the size at first maturity of commercially important fish species in Kosi river mainly the Rohu Labeo rohita and Catla Catla catla. Experimental fishing was conducted using gillnets of different mesh sizes (60, 80, 100, 120 and 140 mm) in six sampling occasions from 2023 - 2024. A total of 2671 fish specimens consisting of 1184 L. rohita and 1523 C. catla were analyzed. Gillnet selectivity parameters for each mesh sizes were estimated for each species using the SELECT method. The size at first maturity (Lm) and its 95% CI for L. rohita and C. catla were estimated at 23.9 cm (23.3 - 24.5 cm), and 32.5 cm (31.6 - 33.4 cm), respectively. Results showed that a Log-normal model best described gillnets selectivity for C. catla, while a Normal location model best described for L. rohita. Capture probability estimates indicate that the optimum length of capture (LCAP) of > 80 mm mesh size nets are smaller than the Lm of both target species, while LCAP of >120 mm mesh net selects above the Lm value for both L. rohita and C. catla. Although the 100 mm mesh selects above the size of Lm value for L. rohita, it still selects below the Lm value for C. catla. Based on the results obtained, it was concluded that gillnets of mesh size 100 and 120 cm may safely be applied in Kosi river fishery if proper level of effort is applied that ensures sustainability of both target species. This study provides the baseline scenario for formulating a sustainable fisheries management strategy since many aspects of the L. rohita and C. catla fishery are not disclosed.. KEYWORDS :Rohu, Catla, optimum length of capture, SELECT model, gonad maturity, Gillnet.
Thanatosis impact of Athalianevadensis lacourt (Hymenoptera: Tenthredinidae), a case study on Brassica napus (l), at Ramgarh (Jharkhand, India).
Authors: Upadhyay Rajesh Kumar
Published: December 2024

Athelia nevadensis Lacourtis aninsect pest of Brassica napus widely distributed in Indian subcontinent. It comprises the great degree of adaptation to protect itself from predators as well as adverse climate. The larvae of Athalianevadensis Lacourthaving a special character when it feel any disturbance or threat it falls down on ground from the host plant , turn curl and show feigning death to confuse the predators, later theyspeedily escape to cracks of soil or under the fallen leaves this character is called thanatosis. Larvae of the pest feed on the leaves of the host plant. It is the only infective stage damage the crop of Brassica napus (L) and tender a significant loss to the farmers of Ramgarh (Jharkhand,India ) .Brassica napus ( L ) is an important cash crop.Farmers cultivate it for marketing; green shoot of this plant as edible green vegetable (sarso sag) later as seed for oil and various uses. Infestation not onlydecline the production of crop but it directly decline the financial status of farmers also.Athelia nevadensis Lacourt is a small insect about 05mm to 6.6mm long orange yellow in colour.It is active in morning and evening. The female lay egg singly at the margin of tender leaves in morning and evening. After incubation period tinygrubs appear,and voraciously feed the lamina of leaf and skeletonise it. The infested host plant retarder in their growth, flowers and seed production.Infestations on Brassica napus is very difficult to control. To makeeffective pest management strategies attractthe researcher to observe the impact on pest and execute for effective control of pest. Farmers are advised for biological control, and apply some parasite as Perilissus cingulator and bacterium serratia marcescens.For quick relief chemical control require Malathion,fenitrothion,endosulphan and quinalphos application.. KEYWORDS :Insect,adaptation,climate,survival,crop,feigning death, biological control, chemical control.
Histopathological changes and elaboration of Mucosubstances induced by metacid in the large intestine of fingerlings of Channa punctatus (Bloch)
Authors: Kumari Pushpa
Published: December 2024

The Communication reports the metacid (an organophosphate pesticide) induced histopathological and histochemical alterations in the large intestine of fingerlings of a fresh water air breathing snake headed murrel fish, Channa punctatus (Bloch). The fishes were exposed to sublethal concentration (8.4ppm) of metacid for 96 hrs. Histologically large intestine contained usual four layers mucosa, submucosa, muscularis and serosa. Metacid intoxication caused histopathologically changes in the large intestine were intestinal villi was totally destroyed, the mucosal layer was entirely separated from the submucosa; submucosa showed necrosis; muscularis was thickened; villi showed fusion of their bases; mucosal cells showed vascuolation. Histochemically after Simazine Intoxication submucosal neutral mucins showed intense staining with PAS; serosal lining showed slight PAS reactivity, number of acid mucosubstances secreting cells increased, musculars showed reduced glycogen concentration.. KEYWORDS :Metacid, Histopathology, Large Intestine, Channa punctatus (Bloch).
Studies on changes in blood glucose in Prometon (weedicide) induced fresh water fish, Mystus bleekeri (day)
Authors: Kumar Purushottam , Keshri Dr. D.K.
Published: December 2024

Zooplankton, the microscopic and free-swimming animal component of an aquatic ecosystem plays an important role on its energy flow process. From the fishery point of view, zooplankton forms the vital links in the pelagic food chain. Many micro zooplanktons also constitute the major food items of the larvae of crustaceans, molluscs and fishes. Thus, abundance of zooplankton practically acts as an ideal index to assess the fertility of given water mass. The present study deals with the quantitative and quantitative diversity of zooplankton in Chilika lagoon. Four zooplankton group viz.,Copepoda, Protozoa, Cladocera and Rotifera were recorded. Theabundance of zooplankton during the sampling period varied between 1775-4840 u/l. Pre-monsoon registered highest abundance (4675-4217 u/l) with average value (2223 u/l) followed by post-monsoon (u/l) with average value 2047 u/l and monsoon (1775-3522nos/m-3) with an average value 1324nos m-3. Copepods had emerged as the most dominant group (57%) throughout the study period. The shared group followed by protozoa (19%), cladocera (14%) and rotifera (10%).. KEYWORDS :Chilika, Zooplankton, Diversity, Abundance.
Diversity and abundance of zooplankton in chilika lagoon, Odisha
Authors: Mishra Suman
Published: December 2024

Zooplankton, the microscopic and free-swimming animal component of an aquatic ecosystem plays an important role on its energy flow process. From the fishery point of view, zooplankton forms the vital links in the pelagic food chain. Many micro zooplanktons also constitute the major food items of the larvae of crustaceans, molluscs and fishes. Thus, abundance of zooplankton practically acts as an ideal index to assess the fertility of given water mass. The present study deals with the quantitative and quantitative diversity of zooplankton in Chilika lagoon. Four zooplankton group viz.,Copepoda, Protozoa, Cladocera and Rotifera were recorded. Theabundance of zooplankton during the sampling period varied between 1775-4840 u/l. Pre-monsoon registered highest abundance (4675-4217 u/l) with average value (2223 u/l) followed by post-monsoon (u/l) with average value 2047 u/l and monsoon (1775-3522nos/m-3) with an average value 1324nos m-3. Copepods had emerged as the most dominant group (57%) throughout the study period. The shared group followed by protozoa (19%), cladocera (14%) and rotifera (10%).. KEYWORDS :Chilika, Zooplankton, Diversity, Abundance.
Distribution of spider mite, Tetranychus ludeni zacher on cowpea
Authors: Shukla Abhishek , D.S. Rabari
Published: December 2024

A study was carried out during April 2022 to study the distribution pattern of spider mite, T. ludeni on cowpea plant. The study revealed that the spider mite, T. ludeniprederred top canopy leaves followed by middle and lower canopy leaves. Further, the spider mite, T. ludeni preferred lower leaf surface as compared to upper surface of the leaf.. KEYWORDS :Spider mite, Tetranychus ludeni, cowpea, distribution, plant canopy
Ecology and diversity of zooplanktons in an aquaculture pond of Madhepura
Authors: Kumari Amrita , Kumar Arun
Published: December 2024

Present study was conducted in an aquaculture pond of Madhepura town. Physicochemical parameters of water studied. Altogether, 11 genera of zooplanktons were identified belonging to 8 families. Rotifera was represented by 4 families and 4 genera, Cladocera with two families and 3 genera and Copepoda with two families and 4 genera. Rotifera dominated throughout the year. Maximum population of Rotifera were found in winter season and minimum in rainy season. Cladocera population was largest in summer season and lowest in winter. Copepoda population was maximum in rainy season and minimum in winter season. Seasonal variation in abundance of zooplanktons was maximum in summer (152 ind/l) and minimum in rainy season (116 ind/l). Percentage population of Rotifera was recorded as 54.63%, that of Cladocera 26.80% and that of Copepoda 18.55%.. KEYWORDS :Zooplanktons, Abundance, Diversity, Rotifera, Cladocera, Copepoda.
Screening of diacetyl producing Lactobacillus isolates isolated from raw cow milk
Authors: Simmi Kumari , Kumar Arun
Published: December 2024

In the present study, diacetyl production by isolates of Lactobacillus was examined. Lactobacillus isolates were isolated from raw cow milk. Altogether 13 isolates were isolated from milk out of which 4 isolates belongs to L. acidophilus, 3 belongs to L. brevis, 2 belongs to L. casei, 2 from L. fermentum and 2 from L. rhamnosus. Diacetyl production was tested in isolates of L. casei, L. brevis and L. rhamnosus at different pH, temperature and multiple susbtrate. All isolates produced maximum diacetyl at pH 6.5. Effect of temperature on diacetyl production varied in different isolates. Isolates of L. casei produced maximum 0 0 diacetyl at a temperature of 8 C, isolates of L. brevis produced maximum diacetyl at a temperature of 18 C 0 and isolates of L. rhamnosus produced maximum diacetyl at a temperature of 20 C. Glucose, lactose and citrate were used as substrate and diacetyl production by isolates was tested. Maximum diacetyl production was observed when lactose and citrate were supplied as substrate.. KEYWORDS :Lactobacillus, Diacetyl, pH, temperature, glucose, lactose, citrate.
Bicycle commuting beyond short distances: built environment, socio-demographic factors and type of bicycle influencing the choice to cycle to three university campuses.
Authors: Rybels Stijn , Vanoutrive Thomas , Corradi David , Coppens Tom
Published: December 2024

Promoting cycling as commuting mode has gained interest due to the increasing consensus among policymakers, supported by scientific evidence on the benefits of cycling. While the convenience of cycling as main commuting mode tends to decrease as commuting distances increase, emerging travel modes such as e-bikes and speedpedelecs, and the promotion and development of cycle highways could overcome distance as barrier to commute by bicycle. This paper uses the commuting data (n= 6,425) of a mid-size university in Belgium to identify the commuter characteristics and built environment determinants that are associated with a higher prevalence of battery-assisted and long-distance regular cycling through a multinomial logistic regression analysis. The case offers a wide range of workplaces and residential locations in terms of density as well as other built environment factors. The paper discusses the potential of long-distance bicycle commuting to shift individuals from motorized commuting towards more active modes. The results suggest that e-bikes and speedpedelecs offer broader geographical reach and appeal to a more diverse demographic. The development of a comprehensive network of cycle highways, emphasizing safety and separation, holds promise for promoting these types of bicycles. Additionally, mixed-use dense (peri-)urban neighbourhoods can stimulate cycling commuting also beyond short distances.
DEVELOPMENT OF GELATIN-SODIUM ALGINATE MICROPARTICLES FOR ORAL INSULIN DELIVERY
Authors: CHIBUZOR AMADI BEN , AKPA PAUL
Published: December 2024

Oral delivery of peptide drugs in the management of diabetes remained a major challenge among formulation scientists in the pharmaceutical industry. In this study, insulin-loaded microparticles for oral delivery were prepared with gelatin and sodium alginate and combined at different ratios using the double emulsion technique. The insulin-loaded microparticles (MPs) were evaluated for yield, and particle size, shape and thermal properties were determined. The in vitro release of insulin and blood glucose reduction after oral administration to diabetic rats were determined. The microparticles formed were spherical and pitted. The prepared insulin-loaded microparticles showed a lag phase before insulin release. The gelatin:sodium alginate (Na-Alg) ratio of 0:1 was the only formulation that released the most in vitro. The percentage blood glucose reduction for subcutaneously administered insulin was significantly greater than that for the formulation (p < 0.05). The reduction effect observed after orally administered insulin-loaded MPs in batch with Na-Alg-gelatin (1:1) was observed after 9 h. However, this effect was like the effect observed in subcutaneously insulin solution. There was gradual release with a sustain effect of lower blood glucose level for a period of 24 h. These results are indicative of its effectiveness as an alternative for the delivery of insulin.