bluuebunny/crossref_metadata_2025 huggingface dataset:
Pyrolysis of Medical Mask Waste into Liquid Fuel Using Activated Natural Zeolite Catalyst
Authors: Fitria Yulistiani  , Agati Risdo Satriya , Haidar Aria Henry , Ayu Ratna Permanasari
Published: February 2025

Due to the COVID-19 pandemic, there has been a rise in the amount of mask waste, which can be recycled using catalytic pyrolysis. The method targets polypropylene, the primary material used in mask production, and utilizes activated natural zeolite as a catalyst. This process can enhance the selectivity of oil product compounds such as benzene, toluene, ethyl benzene, and xylene. This research aims to investigate the impact of the Catalyst Feed mass ratio (C/F) and time on the distribution and recovery of oil products and to identify the optimal operating conditions for generating oil products comparable to the gasoline fraction. The steps are preparation, activation of zeolite catalysts, pyrolysis, component distribution analysis, and pyrolytic oil physical properties test. The variations in this study are C/F of 0.05, 0.1, and 0.2; and pyrolysis times of 30 and 60 minutes. Increasing the C/F to 0.2 reduced the oil yield to 41.18 %w/w, while increasing the time to 60 minutes reduced the char yield to around 3 %w/w. Pyrolysis at C/F = 0.05 for 30 minutes produced the highest monoaromatic composition of 22.884 %w/w, while pyrolysis at C/F = 0.2 produced the highest monoaromatic contents of 20.274 %w/w. The best operating conditions, namely 60 minutes of pyrolysis with C/F = 0.05, resulted in an oil yield of 47.31 %w/w and an octane number of oil products of 80.645. These conditions produce oil with properties of kerosene fraction with a density of 0.778 g/mL and viscosity of 1.005 cSt.
Starting of three phase permanent magnet synchronous motor using BLDC Motor driven
Authors: Darwati Endang
Published: February 2025

Three phase permanent magnet motor has many advantages including simple construction that makes it easy to maintain, has dynamic performance, high power density, reliability and durability. Permanent magnet motors can be operated as stepper motors, brushless direct current motor (BLDCM) and synchronous motor without having to change the three-phase driver motor circuit. The BLDCM are supplied with square or trapezoidal voltages, while the synchronous motor are supplied with sinusoidal voltages. The synchronous motor have advantages in terms of torque and power efficiency but cannot operate from a stationary condition, so it requires starting techniques to run it. The starting technique in this paper is the motor initially operated as the BLDCM until it approaches the desired synchronous frequency then moves into the synchronous generator for a while and then becomes the synchronous motor. The frequency of the motor and the phase difference between the stator field and the rotor field are critical points for this operating displacement. When the stator field precedes the rotor field, the displacement is smooth and the displacement time is very short, that is 1 second. Whereas when the stator field is left behind from the rotor field, the motor experiences a moment of jerking during its displacement and takes 3 seconds.
CÁC NHÂN TỐ ẢNH HƯỞNG ĐẾN CẤU TRÚC TÀI CHÍNH CỦA CÁC CÔNG TY KHOÁNG SẢN NIÊM YẾT TRÊN THỊ TRƯỜNG CHỨNG KHOÁN VIỆT NAM
Authors: Nguyễn Thị Kim Quyên
Published: February 2025

Bài báo trình bày các nhân tố ảnh hưởng đến cấu trúc tài chính của các công ty khoáng sản niêm yết trên thị trường chứng khoánViệt Nam giai đoạn 2019–2023. Nghiên cứu đã sử dụng phương pháp nghiên cứu định lượng kết hợp với phân tích hồi quy. Kết quả của nghiên cứu cung cấp cái nhìn thực tế cấu trúc tài chính trong các doanh nghiệp ngành khoáng sản niêm yết trên thị trường chứng khoán Việt Nam cùng với tầm quan trọng của từng yếu tố đối với cấu trúc này. Một số khuyến nghị đối với các doanh nghiệp ngành khoáng sản Việt Nam dựa trên ảnh hưởng của từng yếu tố đối với cấu trúc tài chính trong ngành, bao gồm: hiệu suất kinh doanh, rủi ro kinh doanh, cấu trúc tài sản, quy mô công ty và tốc độ tăng trưởng.
Feasibility of resonant vibration of piezoelectric material for noncontact evaluation of electrical resistance
Authors: Yoshida Aya , Adachi Kanta , Nakamura Nobutomo
Published: February 2025

When a conductive material is placed near a piezoelectric material vibrating at a resonant frequency, the electric field excited around the piezoelectric material is suppressed, and the apparent piezoelectric coefficient decreases, resulting in a decrease in the resonant frequency. In this study, we investigated availability of this phenomenon for noncontact electrical resistance measurement. The resonant frequencies of lithium niobate and quartz oscillator were measured for the eight different resonant modes, and changes in the resonant frequencies when the conductor and semiconductor were placed near the piezoelectric materials were evaluated. In all cases, the resonant frequency decreased, and the change ratio depended on the resistivity of the conductor and semiconductor. In addition, as the resonant frequency of the measured mode increased, the change ratio became smaller. From these results, we proposed a resistance measurement methodology and confirmed that it can be used for estimating the electrical resistivity qualitatively.
Surface activated Cu/SiO2 hybrid bonding for room temperature 3D integration
Authors: Abadie Karine , Renaud Pablo , Fournel Frank , Michaud Laurent Gaëtan , Danner Matthias , Dornetshumer Michael , Lecouvey Christophe , Papon Anne-Marie , Chevalier Isabelle , Monniez Theo , Matei Constantin , David Thomas , Dominguez Sebastien , Dubarry Christophe
Published: February 2025

We evaluated Surface activated bonding (SAB), a room temperature bonding, for hybrid surfaces bonding. At first, SAB process was evaluated on copper and silicon oxide full sheet surfaces, in order to separately study the impact of the SAB activation on both types of materials embedded in a hybrid surface layer. Then, 200 mm wafers with 2.5 µm copper pads 2.5 µm apart in a silicon oxide matrix were used to probe the impact of activation with atomic force microscopy. Two test vehicles were then manufactured in order to morphologically and electrically study the bonding interface. Thus, hybrid wafers were aligned and bonded in an EVG®COMBOND® equipment. Cross-sectional scanning and transmission electron microscopy characterizations were performed on both test vehicles in order to observe the bonding interface. Electrical tests were also performed at the end of full 3D integration on daisy chain structures to demonstrate a high connectivity through the bonding interface.
Analisis Efektivitas Kelompok Tani Terhadap Pendapatan Usahatani Jagung Di Kemelak Bindung Langit Baturaja Timur
Authors: Endang Lastinawati  , Fadilah Nur , Rosmawati Henny , Herdaning Putri Piranti , Chuzaimah
Published: February 2025

Corn is a commodity used to meet food needs, raw materials for the feed industry, and other needs, such as alternative fuels (biofuels) and polymers, so its production is expected to continue to increase. Corn productivity is thought to be able to be increased through the role of farmer groups. This study aims to analyze the effectiveness of corn farmer groups and determine the amount of farming income in those groups. The study was conducted in Kemelak Bindung Langit Village, East Baturaja. The research method used was the survey method. The research sample was taken using the census method, namely farmers who are members of three corn farmer groups, from 27 existing farmer groups. The total number of samples from the three farmer groups was 79 farmers. The results of the study showed that corn farmer groups in Kemelak Bindung Langit Village were not effective in their function as providers of corn production facilities, as a medium for transferring knowledge, or as a place to market production results. In terms of income, corn farming in Kemelak Bindung Langit Village generated an income of IDR 11,355,498.00 per planting season
Faktor-Faktor yang Mempengaruhi Pemasaran Jagung oleh Petani di Kabupaten Boalemo
Authors: Machieu Siti Rahmatia , Hippy Mohammad Zubair
Published: February 2025

The study aims to determine the effect of production capacity, location, capital, transport and marketing management partially and simultaneously on the effectiveness of maize marketing by farmers in Boalemo District. This research is quantitative research. The data source in this study is secondary data in the form of primary data from distributing questionnaires to corn farmers in Gorontalo Regency with a sample size of 77 farmers. The data analysis technique used is multiple regression analysis. The results of this study show that (1) Partially, farm capital, transport, and marketing management have a positive and significant effect on the effectiveness of maize marketing in Boalemo District. Meanwhile, production capacity and farm location have a positive but insignificant effect on the effectiveness of maize marketing in Boalemo District. All independent variables have positive coefficients, indicating that the more optimal these factors are, the more effective maize marketing in Boalemo district will be. (2) Simultaneously, production capacity, farm capital, farm location, transport, marketing management and distance together affect the effectiveness of maize marketing in Boalemo District. the adjusted R2 coefficient of determination is 0.627. This value means that 62.7% of the effectiveness of maize marketing in Boalemo Regency, Gorontalo Province can be explained by production capacity, farm capital, farm location, transport, and marketing management in Boalemo Regency, Gorontalo Province. While 37.3% is explained by other factors outside the model. Other factors outside the model are distribution channels and government policies.
Keywords: Marketing; Maize; Farmers; Agribusiness; Boalemo
Filling the old with new life. Application of original indicators for evaluating ecovillages as village repopulation initiatives
Authors: Acampa Giovanna , Pino Alessio
Published: February 2025

The recently intensified trend of centripetal movements from small to bigger centres has multiplied the number of inhabitants of large cities. In Italy, this has resulted in worrying figures: more than 70% of Italian Municipalities have less than 5,000 inhabitants. Despite several regional and national policies dedicating programs and funds to counteract this progressive phenomenon fostering the repopulation of abandoned villages, this trend is far from being halted. Though the functional gap between cities and villages is evident, this study and previous research on this theme aim to change the perspective on the possible uses and repopulation processes of villages, pivoting on their potential as places where to enjoy different lifestyles. The focus is on the ecovillage model, developing a set of specific indicators to individuate them through their peculiar aspects and assess their benefits and vulnerabilities. An experimental application is also proposed on 7 ecovillages. This set of indicators is not conceived as completely substitutive of those used in current policies, but rather as a suggestion of possible integrations to avoid demoting this category of villages in policy-related evaluations for funding allocation.
Os dois últimos dragões de Strange em tempos de mudanças climáticas
Authors: Corazza Rosana , Fracalanza Paulo Sérgio , Oliveira Souza Maria Cristina
Published: February 2025

After four decades, Susan Strange's critical article on international regimes published in prestigious International Organizations still receives significant citations in major bibliographic databases. By taking up the reading of Hic Dragones, authored by what is considered the "founding mother" of the British current of International Political Economy, this article puts at the focus of attention her last two criticisms of regime analysis - or her last two "dragons": the static and statocentric character of these analyses. Based on a systematic literature review, trends in the literature on international regimes are identified, presented, and discussed, particularly those strands designed to address climate change. Two trends are identified and examined. Looking at the developing literature, advances are reported in the construction of analytical approaches with contributions to climate governance and Earth system governance, which seek to offer interpretative possibilities in the face of the multiplicity of actors and dynamic characters pointed out in this review.
SENTIDOS À VIVÊNCIA DE MULHER JOVEM COM IRC EM DIÁLISE: ANÁLISE DE DISCURSO FRANCESA
Authors: Miranda de Carvalho Hosana de Nazaré , Formigosa Dociana Erica Cabral , Cavalcante Inara Mariela da Silva , Teixeira Elizabeth , Ferreira Maria Goreth Silva
Published: February 2025

Experiências de adoecimento podem ser marcantes, especialmente a Insuficiência Renal Crônica (IRC) em grupos específicos como mulheres jovens, podendo gerar inquietações, rupturas e necessidade de adaptação. Pouco se conhece sobre como a mulher jovem (MJ) sente, vive e expressa suas vivências com a IRC.  O objetivo é identificar os impactos da IRC e da diálise na vida da MJ; identificar as formações discursivas mobilizadas em seu discurso; e analisar os significados e sentimentos atribuídos ao tratamento. O estudo exploratório, qualitativo, baseado no Método Criativo Sensível, com as dinâmicas "Linha da Vida" e "Corpo Saber”, em um serviço de diálise de um hospital público na Amazônia brasileira. Participaram 15 MJs entre 21 e 40 anos. Os dados foram analisados pela Análise de Discurso Francesa, com o aporte teórico de Paulo Freire e da Teoria de Enfermagem de Callista Roy. Nos resultados elementos discursivos como metáforas, silenciamento, paráfrases, polissemia, polifonia e ethos revelaram a dialética de um cotidiano impactado pela IRC. Os impactos da IRC vão além da adesão à dieta, terapia e medicamentos, abrangendo o desejo de engravidar, transplantar, criar e educar filhos, empreender e questões de identidade e gênero.  A vida da MJ é gerenciada pelas demandas da terapia, com a IRC e a diálise influenciando seus processos vitais, distintos dos de outros grupos. Planos terapêuticos dialógicos podem facilitar a vivência da MJ com a diálise.
Business Reputation and Resilience: Digital Skill Strategies in a Transformative Era
Authors:   KROK University, Laptiev Sergii , Mazur Iryna ,   Technological University Dublin, Koval Yana ,   State University of Trade and Economics, Laptiev Mykhailo ,   KROK University
Published: February 2025

In the digital transformation era, businesses must prioritize the development of employees' digital skills to maintain competitiveness and enhance their reputation. With artificial intelligence (AI) revolutionizing industries, organizations face the dual challenge of leveraging technology and addressing workforce readiness. This chapter explores how investing in digital skills contributes to improved customer experiences, innovation, and stronger stakeholder relationships, positioning businesses as leaders in a rapidly evolving digital economy. The research aims to identify the critical role of employee digital skills in building and sustaining a positive business reputation amidst AI-driven changes and digital transformation. It examines strategies to address the digital skills gap and align workforce development with organizational objectives. Key areas of focus include the digital skills gap, training strategies, and stakeholder engagement. The study systematically examines challenges like resistance to change, resource constraints, and rapid technological advancements. It evaluates strategic approaches, including comprehensive training programs, AI-driven personalization, and the cultivation of a learning culture. It also highlights key skills, such as cybersecurity and data analytics, essential for maintaining a competitive edge. The study identifies key challenges to digital skills development, including resilience to change, resource constraints and rapid technological advancement. It suggests strategies to overcome these challenges, such as comprehensive curricula, the use of AI-driven learning platforms and cultivating a culture of continuous learning. It highlights the role of key digital skills, including data analytics, cybersecurity and AI skills, in driving innovation, improving customer engagement and building stakeholder trust. Future studies could explore the quantitative impact of digital skills initiatives on organizational performance, the long-term effects of continuous learning cultures, and the role of emerging technologies like quantum computing in workforce development. Additionally, industry-specific analyses could provide deeper insights into tailoring digital upskilling programs for diverse sectors.
Integrating Digital Skills into Human Capital Management: Optimizing HR Auditing in the Era of Artificial Intelligence
Authors:   Zhytomyr Polytechnic State University, Melnychuk Dmytro
Published: February 2025

This article explores the integration of digital skills into Human Capital Management (HCM), with a specific focus on optimizing personnel auditing in the era of Artificial Intelligence (AI). The purpose of the study is to examine how digital competencies, combined with advanced technologies, transform traditional HR practices into dynamic, data-driven processes that enhance organizational efficiency, strategic decision-making, and workforce optimization. By analyzing the evolution of personnel auditing, the study highlights the shift from manual, compliance-focused methods to AI-enhanced approaches that offer predictive insights, real-time data analysis, and automation. The research methodology employed is qualitative, based on systematic analysis of current practices, technological developments, and strategic HR frameworks. Through a comprehensive evaluation of digital tools, AI-driven systems, and HR Information Systems (HRIS), the study identifies key areas where digital skills are integrated, such as data analytics, talent acquisition, performance management, and change management. Comparative analysis is also utilized to contrast the benefits of traditional digital skills with those of AI-enhanced capabilities in HR auditing and business processes. The findings reveal that digital skills significantly improve the efficiency and accuracy of personnel audits, supporting evidence-based decision-making and proactive risk management. AI-driven technologies amplify these benefits by enabling predictive analytics, continuous monitoring, and real-time compliance tracking. Organizations that embrace digital transformation achieve greater agility, resilience, and strategic alignment, fostering a culture of continuous improvement and innovation. The study concludes that while digital skills are essential for modern HR practices, the integration of AI elevates these functions to a strategic level, driving sustainable growth and competitive advantage. However, challenges such as resistance to change, skill gaps, and data security concerns remain critical barriers. Future research should focus on developing frameworks for effective change management, continuous digital upskilling, and ethical considerations in AI-driven HR practices. This will ensure that organizations can fully leverage the transformative potential of digital skills and AI in Human Capital Management.
Integrating Digital Skills into the Unique Challenges and Opportunities of Education in India
Authors:   CMR University, Gupta Sandeep Kumar , T.S. Saranya ,   CMR University
Published: February 2025

This chapter explores the integration of digital skills into the educational landscape of India, examining the unique challenges and opportunities that arise within this dynamic context. The introduction outlines the transformative journey of digital skills development in India, tracing its evolution from basic computer literacy in the 1990s to the advanced competencies required in today’s rapidly digitizing world. The primary aim of this research is to analyze the pivotal role of digital skills in shaping India’s socio-economic growth, with a specific focus on how these competencies are being embedded into educational systems to prepare a future-ready workforce. The research methodology employed in this study includes a comprehensive review and analytical synthesis of educational reforms, government policies, industry initiatives, and the socio-cultural factors influencing digital skill adoption. This qualitative approach allows for an in-depth exploration of historical developments, current practices, and emerging trends in digital education. Additionally, case studies of key government programs and public-private partnerships are used to highlight practical implementations and their outcomes across different regions of India. The results of the research indicate a significant transformation in India’s digital skill landscape, driven by factors such as economic liberalization, the IT boom, globalization, and the Digital India initiative. The findings reveal that while substantial progress has been made in enhancing digital literacy and creating a digitally skilled workforce, challenges such as the digital divide, skill mismatches, and disparities in access to quality education persist. The research also identifies the rapid adoption of advanced technologies—such as artificial intelligence, blockchain, and the Internet of Things—as critical drivers of new digital competencies required in both urban and rural settings. The practical value of this research lies in its ability to inform policymakers, educators, and industry leaders about effective strategies for integrating digital skills into educational curricula and professional development programs. It offers actionable insights on bridging the digital divide, aligning educational outcomes with industry demands, and fostering an ecosystem that supports continuous learning and innovation. Directions for further research include the need for longitudinal studies to assess the long-term impact of current digital initiatives, as well as comparative analyses to understand best practices from other digitally advanced nations. This will help refine India's digital education strategies and ensure sustainable growth in the digital economy.
Digitalization to Overcome the Challenges of Customs Brokerage
Authors:   Dmytro Motorny Tavriya State Agrotechnological University, Nekhai Viktoriia
Published: February 2025

Customs brokers play a crucial role in international trade, acting as intermediaries between importers, exporters and government customs authorities. They provide basic services that facilitate the smooth movement of goods across borders. One of the main functions of customs brokers is the preparation and submission of the necessary documentation for customs clearance. However, customs brokers encounter difficulties in their work. Uncertainty around trade agreements and border policies, regulatory complexity, corruption and bureaucracy, lack of transparency of procedures, technical limitations, infrastructure problems, technology gaps and inadequate staff skills. Directions for improving the situation are being considered. Comprehensive reforms, optimization of customs procedures, increased transparency of customs operations, ensuring adaptability to a changing environment, improving the efficiency of infrastructure and implementing effective electronic systems are necessary. The main purpose of this study is to determine directions for creating a more favorable environment for the activities of customs brokers based on digitalization to overcome the challenges of the customs fraternity, which in turn will contribute to the expansion of foreign trade and the economy. Digital transformation is a key factor in bridging the technological divide. The lack of integrated digital platforms is a significant obstacle for customs brokers. By investing in digital tools training, brokers can transition from legacy systems to more efficient modern technologies. Customs brokers must adopt a holistic approach to digital transformation, including automating processes, improving customer interactions and ensuring regulatory compliance. The results indicate that digital tools can improve the efficiency of customs processes, allowing brokers to respond quickly to changing conditions and achieve a high level of competitiveness. The digital transformation of the customs fraternity is critical to adapting to uncertainty. Automated systems can reduce human error, speed up processes and improve data accuracy, which is important in a rapidly changing environment. Brokers investing in technology will be better positioned to navigate the complexities created by geopolitical factors.
ASSESSING THE EFFECT OF CARBON CREDIT REVENUE DISCLOSURE ON FIRM’S PROFITABILITY
Authors: Ms. Harshita Jain  , Prof.Jinendra Kumar Jain
Published: February 2025

This study explores the existing practices of firms listed on the National Stock Exchange (NSE) Nifty in India concerning responsible carbon accounting and reporting. To assess the importance and transparency of the revealed financial statements' current accounting practices, it aims to provide a basic comprehension of them. We looked at the financial data to learn more about the firms' carbon disclosure and reporting practices. Many of the companies that are listed on the NSE Nifty have shown that they are genuinely concerned about the environment and that they are willing to take voluntary steps to mitigate the negative effects of carbon emissions. The objective of the study was to know the significance of Carbon Disclosure and the impact of carbon credit revenue on firms’ profitability. To achieve the desired objective 126 NSE listed companies were identified out of which 106 companies were taken for the purpose of study the data has been collected from companies’ financial statements for the period of 2012-2018. On the other hand, our results provide light on the relationship between overall revenue and carbon credit income. The regression model demonstrates strong explanatory power (R-squared = 0.709) and a strong correlation (R = 0.842) between the variables. Moreover, the ANOVA test validates the model's considerable significance in explaining the variance in total revenue. This suggests that carbon credit income has a influence on the company's total revenue and financial performance.
KEYWORDS: Carbon Disclosure, Carbon Credit Income, Carbon Accounting, Profitability, Financial Performance
PEMBERDAYAAN IBU-IBU PKK MELALUI PELATIHAN PEMBUATAN ECOPRINT DARI DAUN DAN BUNGA SEKITAR SEBAGAI PENGEMBANGAN UMKM DI DESA PAGERGUNUNG
Authors: Kusumawati Rizqi Adhyka , Afuan Fajrian Putra  , Selfira Salsabila
Published: February 2025

Desa Pagergunung merupakan salah satu desa dari 16 desa dikecamatan Ngablak kabupaten Magelang Provinsi Jawa Tengah yang terletak di Kawasan kaki gunung Telomoyo dan Gunung andong. Desa Pagergunung merupakan daerah berbukit atau gunung dan bergelombang.Sehingga membuat desa Pagergunung memiliki iklim yang sejuk dan tanah yang subur sehinggakaya akan hasil bumi terutama di bidang pertanian. Desa Pagergunung kini menjadi salah satu desa wisata yang sedang berkembang, dengan adanya pengembangan Embung Sekembang kini membuat desa Pagergunung semakin dikenal oleh masyarakat banyak baik di dalam kota Magelang maupun dari luar kota Magelang. Gencaran pembangunan wisata desa Pagergunung akan berjalan seimbang jika diiringi dengan peningkatan keterampilan dan kreativitas warga sekitar untuk mempersiapakan dan menyuguhkan hasil dari khas warga desa setempat, sehingga harapan kedepannya bisa meningkatkan kesejahteraan warga Desa Pagergunung. Letak geografi yang sangat strategis dikelilingi oleh pegunungan, iklim yang sejuk serta tanah yang subur membuat Desa Pagergunung memiliki banyak jenis tanaman yang bagus, dan unik tumbuh liar dan subur. Potensi tersebut dapat dimanfatkan oleh masyarakat sekitar menjadikan ide ecoprint ini dapat diaplikasikan serta dikembangkan untuk memulai sebuah usaha baru. Di samping itu, Pagergunung masih belum memiliki oleh-oleh/buah tangan yang dapat dijadikan ciri khas daerahnya, dan dapat mengundang daya tarik pengunjung untuk singgah atau berkunjung di Pagergunung. Peluang-peluang yang telah ada ini belum dimanfaatkan secaramaksimal, dengan melihat masih minimnya pengetahuan dan keterampilan warga memanfaatkan potensi yang ada belum bisa dijalan secara maksimal. Berdasarkan permasalahan tersebut di atas maka di perlukan upaya pemberdayaan masyarakat di Desa Pagergunung dengan tujuan yaitu terciptanya peningkatan keterampilan dalam berwirausaha membuat produk ecoprint, sehingga luaran yang dihasilkan dari kegiatan pengabdian ini adalah: 1) Terciptanya peningkatan SDM masyarakat di Desa Pagergunung khususnya untuk ibu-ibu PKK membuat ecoprint, dan 2) terciptanya produk ecoprint oleh-oleh khas desa Pagergunung. Metode yang digunakan adalah pelatihan, pendampingan, dan implementasi.
 
Kata kunci : Ecoprint, ibu-ibu Kelompok Wanita Tani, PKK, Desa Pagergunung
Analisis Sistem Kendali Dan Monitoring Motor Induksi Tiga Fasa Berbasis Scada
Authors: Ulil Amri Ulil Amri , Pratiwi Amelya Indah , Humena Steven
Published: February 2025

Motor induksi tiga fasa merupakan salah satu alat yang digunakan untuk mengubah energi listrik menjadi energi gerak yang biasa digunakan sebagai aktuator atau alat penggerak di industri. Melihat konsumsi daya yang digunakan pada motor induksi tiga fasa dengan metode konvensional serta dilihat dari hasil investigasi dan analisa penyerapan daya di industri masih terbilang tinggi, maka dengan menggunakan variable frequency drive bisa mereduksi penyerapan daya pada motor induksi tiga fasa. Pada penelitian ini dirancang skema kendali motor secara konvensional dan kendali motor menggunakan variable frequency drive dengan monitoring scada. Pada rancangan ini diamati tegangan, arus, dan frekuensi untuk mengetahui penyerapan daya pada motor induksi tiga fasa dengan menggunakan dua metode kendali motor. Hasil pengamatan menunjukan   bahwa kendali motor dengan menggunakan metode konvensional lebih banyak menyerap daya jika dibandingkan dengan kendali motor dengan menggunakan variable frequency drive. Dan juga ketahanan motor yang lebih lama masa penggunaannya yaitu dengan menggunakan variable frequency drive jika dibandingkan dengan menggunakan metode konvensional. Monitoring karakteristik motor induksi tiga fasa lebih ramah pengguna jika mnggunakan variable frequency drive dibanding menggunkan metode konvensional. Kendali motor dengan menggunakan variable frequency drive lebih bervariasi sesuai dengan kebutuhan konsumen.
The Effect of the (Team - Pair - Solo) Strategy in Learning the Accuracy of the Spiking Skill in Volleyball
Authors: Ali Donia , Al-Zuhairi Najla
Published: February 2025

This study aims to prepare educational sessions for the strategy (team-pair-solo) in practical volleyball lessons for female students and identifying its effect on learning the accuracy of the spiking skill in volleyball. An experimental design with experimental and control groups was employed on a purposive sample of (30) female students who were to constitute (42.254%) from their community represented by the sophomores at the College of Physical Education and Sports Sciences for Girls / University of Baghdad who are in good standing in the morning study for the academic year (2022-2023), whose total number is (71) students.
According to the determinants of the experimental design, participants were divided into two equal groups, and the accuracy test of the skill under research was determined, and four educational sessions were prepared that were applied experimentally to the students of the experimental group over four consecutive weeks. One session per unit was presented to participants in the experimental group. Participants in the control group received the conventional learning of the accuracy of this skill.
After the completion of the experimentation, the scores of the pre- and post-tests of the students of these two groups were collected and statistically processed with the statistical package for social sciences. The researchers concluded and recommended that a strategy (team-pair-solo) can be applied in practical physical education lessons to learn the accuracy of the skill performance in volleyball for sophomores at the College of Physical Education and Sports Sciences for Girls. This application helps in learning the accuracy of the spiking skill in volleyball among students and outperforms its learning among students who learn without such a strategy.
It is necessary to pay attention to provide a learning environment that suits the application of a strategy (team-pair-solo) in practical physical education lessons in volleyball, and it is necessary to pay attention to diversifying the combination between cooperative and individual self-learning within one lesson when learning the accuracy of the spiking skill in volleyball among sophomores at the College of Physical Education and Sports Sciences for girls.
Factors that Determine Farmers’ Access to Credit: Insights from Farmers in Kosovo
Authors: Shkodra Jehona , Ibishi Lindita , Ymeri Prespa , Gashi Fjolla
Published: February 2025

This study analyses the determinants of access to credit: Results from five regions of Kosovo (Prishtina, Prizreni, Peja, Gjilani, and Mitrovica). The data at the farm level will be collected between March and July 2023. A sample of 350 farms was selected for the survey using a multi-stage random sampling method. This study used a linear regression model, frequency counts, chi-square tests, and percentages to analyze the data. Access to agricultural credit is relatively low in Kosovo. The results of the study show that the interest rate is the most important factor when it comes to obtaining a loan from farmers, while land ownership has a negative association and reduces the constraints in accessing credit. The results of this study also show that institutional lenders prefer agricultural credit to educated and young farmers to allocate resources efficiently as they are more inclined to adopt new agricultural technologies to improve agricultural production.
Relationship between Competitive Strategy and Firm Performance: Moderated by Environmental Dynamism (ED) and Competitive Intensity (CI)
Authors: Ngatno Ngatno , Prihatini Apriatni Endang
Published: February 2025

This study is intended to examine the effects of strategy on performance moderated by environmental dynamism (ED) and competitive intensity (CI). Survey data was obtained from Batik MSMEs in Central Java - Indonesia. Sampling was carried out in the Yogyakarta, Surakarta, Pekalongan, and Rembang areas with a total sample of 150 Micro, Small, and Medium Enterprises (MSMEs). The results show that the effect of differentiation strategy (DS) on performance is stronger in more dynamic environments. However, this environmental dynamism (ED) weakens the effect of cost leadership strategy (CLS) on firm performance. Furthermore, competitive intensity can increase the effect of CLS and decrease the effect of DS on firm performance.
ПРО ВИКОНАННЯ У 2024 р. НАУКОВИХ ДОСЛІДЖЕНЬ ДЛЯ ПІДТРИМКИ МОЛОДИХ ВЧЕНИХ
Authors: Коваленко Валентина Володимирівна , Бужинецька Ксенія Борисівна , Предко Вікторія Володимирівна
Published: February 2025

У публікації представлені результати виконаних у 2024 р. прикладних наукових досліджень для підтримки молодих вчених, які працюють у наукових установах НАПН України. Дослідження здійснювалися за результатами конкурсного відбору в січні 2024 р., який було проведено з метою підтримки та активізації наукової діяльності молодих вчених НАПН України, сприяння розвитку їх професійних якостей і творчого потенціалу.Здобуті молодими вченими академії результати досліджень спрямовані на науково-методичне забезпечення природничо-математичної освіти учнів, удосконалення методичної підготовленості вчителів щодо використання дидактичних можливостей штучного інтелекту у навчанні; модифікацію технологій для надання психологічної допомоги родинам із дітьми з особливими потребами у період війни; формування стійкого балансу локусу контролю як провідного фактору зміцнення ментального здоров’я української молоді в умовах війни.Наукові результати проведених досліджень упроваджено у закладах освіти різних рівнів, психологічних службах, а також в органах державної влади та органах місцевого самоврядування.
Features of the application of combined steel-reinforced concrete floors based on lightweight steel thin-walled structures in seismic-prone regions
Authors: Bubis Alexander A. , Giziatullin Ilnur R. , Davidenko Aleksey A. , Petrosyan Inna A. , Nazmeyeva Tat’yana V. , Davidenko Alexander I. , Pushko Nikita I.
Published: February 2025

Introduction. The article is devoted to the study of the features of the use of combined steel-reinforced concrete floors made on the basis of lightweight steel thin-walled structures in the construction of buildings in seismic areas. These structures are lightweight, have a high load-bearing capacity relative to their own weight and accelerate the construction process. Together, these properties make them a competitive alternative to traditional technologies used in the construction of buildings erected in seismic areas.

The aim of the study is to review, demonstrate the current progress, problems and future directions of research, features of the use of combined steel-reinforced concrete floors of buildings based on lightweight steel thin-walled structures in seismic areas.

Materials and methods. A systematic review and analysis of domestic and international studies on the seismic resistance of composite steel-reinforced concrete floors based on lightweight steel thin-walled structures were conducted. The study used systematization, structural, comparative, and correlational analyses, as well as theoretical generalization of materials obtained from normative and technical documents and research literature regarding the seismic performance of these floors.

Results. The findings of experimental studies on the seismic resistance of composite steel-reinforced concrete floors based on lightweight steel thin-walled structures were reviewed and summarized. Current achievements, pressing challenges, and future research directions were demonstrated. The analysis confirms that these floors offer a competitive and effective solution for construction of buildings being erected in regions prone to seismic activity. The synergy between the steel frame, profiled decking, and concrete layer ensures an optimal balance of stiffness and ductility, which is critical for resisting seismic loads and ensuring structural reliability and mechanical safety. However, the lack of normative documents regulating the design of such floors in seismic regions hinders their broader adoption in construction practices.

Conclusions. The study confirms the necessity for theoretical and experimental research, as well as the development and refinement of normative and technical documents. These efforts will facilitate the wider application of composite steel-reinforced concrete floors based on lightweight steel thin-walled structures, ensuring the reliability and mechanical safety of buildings constructed with their use, particularly in regions prone to seismic activity.
Issues of applying measures of influence of the prosecutor over the implementation of legislation on irrigated agricultural land
Authors:   Senior prosecutor of the General Prosecutor’s Office, magistracy listener, Uzbekistan, Ashraphodjaevich Rakhmedov Khurshid
Published: February 2025

This article analyzes the importance of prosecutorial oversight and the application of measures to ensure the enforcement of legislation on the efficient use of irrigated agricultural lands. It highlights existing legislative norms, their socio-economic significance, and practical challenges. Scientific proposals and recommendations have also been developed to improve the mechanism of prosecutorial measures. These recommendations aim to enhance the efficiency of rational land resource use and prevent legal violations.
Results of complex treatment of chronic rhinosinusitis in patients with community acquisited pneumonia
Authors:   Republic of Uzbekistan, Tashkent Medical Academy, Department of Otorhinolaryngology, Uzbekistan, Bakiyeva Shahlo Xamidullayevna
Published: February 2025

As world statistics show, 60% of patients with chronic rhinosinusitis develop bronchopulmonary pathology. According to foreign authors, the number of patients with chronic rhinosinusitis increases annually by 1.5-2%, and today more than 2/3 of inpatients are affected by this pathology. Due to the anatomical, physiological and complementary characteristics of the upper and lower respiratory tracts, there is a tendency towards a protracted course of rhinosinusitis, which in turn leads to the spread of the infectious process to the lower respiratory tract. It should be noted that existing foci of infection in the upper respiratory tract spread to the lower respiratory tract through microaspiration after an acute respiratory illness, which is the cause of the development of chronic bronchitis, bronchial asthma, and in particular pneumonia. It should be noted that despite the efforts of a number of specialists in the treatment of penmonia, in recent years there has been a significant increase in the incidence rate, as well as, unfortunately, an increase in mortality among people of various age groups.
The Impact of Extended CO2 Cross Sections on Temperate Anoxic Planet Atmospheres
Authors: Broussard Wynter , Schwieterman Edward W. , Sousa-Silva Clara , Sanger-Johnson Grace , Ranjan Sukrit , Venot Olivia
Published: February 2025

Our interpretation of terrestrial exoplanet atmospheric spectra will always be limited by the accuracy of the data we use as input in our forward and retrieval models. Ultraviolet molecular absorption cross sections are one category of these essential model inputs; however, they are often poorly characterized at the longest wavelengths relevant to photodissociation. Photolysis reactions dominate the chemical kinetics of temperate terrestrial planet atmospheres. One molecule of particular importance is CO2, which is likely present in all terrestrial planet atmospheres. The photolysis of CO2 can introduce CO and O, as well as shield tropospheric water vapor from undergoing photolysis. This is important because H2O photolysis produces OH, which serves as a major reactive sink to many atmospheric trace gases. Here, we construct CO2 cross-section prescriptions at 195 K and 300 K extrapolated beyond 200 nm from measured cross sections. We compare results from the implementation of these new cross sections to the most commonly used CO2 prescriptions for temperate terrestrial planets with Archean-like atmospheres. We generally find that the observational consequences of CO2 dissociation beyond 200 nm are minimal so long as our least conservative (highest opacity) prescription can be ruled out. Moreover, implementing our recommended extended CO2 cross sections does not substantially alter previous results that show the consequential photochemical impact of extended H2O cross sections.
Optical Polarimetry of WR 1 Consistent with a CIR and 17 days Rotation
Authors: Steenken Nicolaus , Ignace Richard , St-Louis Nicole , Lenoir-Craig Guillaume
Published: February 2025

New visible-band linear polarimetry of the star WR 1 (HD 4004) is presented. This early N-rich Wolf–Rayet star has previously been reported as harboring a Corotating Interaction Region structure threading its wind, implying a stellar rotation period of 16.9 days. Polarization measurements in the Q − U diagram obtained over a span of more than 5 weeks with sampling every few days are revealing (a) variability consistent with the previously reported period and (b) a loop morphology consistent with theoretical models.
Borderless Lizards: Unveiling Overlooked Records and the Runaway Invasion of Anolis sagrei in Ecuador
Authors: Romero Víctor , Maxi Edison , Cando Karen , Vega Marlon , Sozoranga Johe , Saa Luis Rodrigo
Published: February 2025

Based on bibliographic records and data from GBIF and iNaturalist, we evaluated the global distribution of Anolis sagrei. This lizard, native to Cuba and the Bahamas, has now spread across mainland America, particularly in the Caribbean, Central America, and parts of the United States. It has also been introduced in Asia, and, according to some iNaturalist observations not covered in previous literature, it has been observed in Israel, Canada, and northern South America. The species is especially abundant in the Caribbean and southeastern United States, with high concentrations of records in these regions and parts of Mexico, indicating significant range expansion. In Ecuador, A. sagrei has been recorded both along the coast and in the Amazon, with notable occurrences in Esmeraldas, Manabí, Guayas, Francisco de Orellana, and, for the first time, in Zamora Chinchipe (southern Amazon), specifically in El Pangui. The capture of 10 individuals in this area (deposited at the Zoology Museum of Universidad Técnica Particular de Loja) confirmed typical A. sagrei morphology, with a scale pattern similar to populations in Honduras and Cuba but showing variations in scalation and body measurements. In Ecuador, the number of lamellae on the fourth toe ranges from 29-33, consistent with individuals from Honduras and Cuba but differing from those in Taiwan. Additionally, dorsal and ventral scale counts within the 5 mm range show variations (dorsal: 11-22 and ventral: 10-25), suggesting environmental adaptations or natural variability. Climate change favors its spread, enabling the colonization of new habitats through increased temperatures and altered precipitation patterns. As an invasive species, A. sagrei impacts local biodiversity by competing with native species and disrupting ecological balance. This study underscores the need for monitoring and control programs in Ecuador, particularly in the Amazon, to protect native biodiversity.
Exploring the bee fauna on the islands of Brittany (France): an initial survey reveals a remarkable species richness
Authors: Le Féon Violette , Garrin Mael , Genoud David , Aubert Matthieu , Dufrêne Éric , Filipe Marie , Flacher Floriane , Ramage Thibault , Stoquert Anthony , Vassel Stéphane , Geslin Benoît
Published: February 2025

Islands are areas where biodiversity conservation is of the utmost importance and is particularly challenging due to the isolation and vulnerability of animal and plant populations. The coastline of Brittany includes a large number of islands, which vary greatly in size, distance from the mainland, landscape composition and climate. Until recently, virtually nothing was known about the bees on these islands, but a number of studies have been carried out in recent years, allowing an initial assessment to be made. The aim of this article is to provide an overview of the bee fauna of the islands of Brittany, in terms of species richness, species composition and rarity status. In total, we gathered records of 188 wild bee species on 25 continental islands, located on both the north and south coasts of Brittany. For most of the islands, we obtained only occasional data, but a few have benefitted from intensive surveys, with data collected throughout the entire flight period and over several years and in different locations and habitat types. For four islands, we considered that the current knowledge is relatively good: Groix (113 wild bee species), Houat (82 species), Hoedic (64 species) and Ouessant (57 species). In addition to the number of species, this study shows that the islands host many species that are rare at regional or national level. Our results highlight the importance of taking bees into account when managing habitats and defining protected areas in islands, in order to conserve both food resources and nesting sites for these pollinator insects.