bluuebunny/crossref_metadata_2025 huggingface dataset:
Prácticas argumentativas en la educación matemática costarricense
Authors: Ramírez Oviedo Luis Fernando
Published: July 2024

El objetivo de este escrito es presentar elementos por considerar en las prácticas argumentativas de docentes de Matemáticas de la enseñanza secundaria de Costa Rica en el 2023. Se abordan las diferentes nociones de argumentación y sus diferencias con explicar y demostrar. Costa Rica, al igual que muchos países pertenecientes a la OCDE, se enfrenta al reto de formar personas ciudadanas competentes en diferentes áreas del saber; una de ellas es la Matemática y dentro de esta se debe desarrollar la competencia de argumentar, entre otras. Sin embargo, los resultados alcanzados por el país en su última evaluación en las pruebas PISA (2018) no son buenos y tienen múltiples factores que se vinculan en el presente ensayo con datos de una experiencia piloto con docentes en ejercicio, graduados de diferentes universidades y que laboran en distintas instituciones, sobre sus creencias acerca de la argumentación. Finalmente, se revisa la importancia de fomentar la argumentación desde la formación inicial de docentes en las universidades públicas del país. La principal conclusión hallada destaca la necesidad de formar profesionales con una noción amplia de argumentación, con experiencias y modelos que le permitan desarrollar una mediación pedagógica de esta competencia en su labor docente.
Buenas prácticas desde la gestión para la promoción de la educación inclusiva
Authors: García-Martínez José Antonio , Chen-Quesada Evelyn
Published: July 2024

En la actualidad, las personas directoras tienen desafíos en la concreción de buenas prácticas para promover entornos inclusivos. Esto implica un compromiso institucional de la comunidad educativa para el logro de procesos de calidad a largo plazo. Al respecto, el presente estudio tiene como objetivo analizar las prácticas de gestión curriculares y administrativas que realizan las personas directoras para promocionar la educación inclusiva en los centros educativos costarricenses. La investigación se llevó a cabo desde un enfoque mixto, con un diseño cuantitativo no experimental y transeccional, y cualitativo a través de estudio de casos. La recogida de datos se realizó mediante un cuestionario en línea aplicado a una muestra probabilística simple de 146 personas directoras; una entrevista estructurada a seis personas directoras y cuatro grupos focales con los colectivos de directores y docentes. Los resultados evidencian nueve prácticas de gestión asociadas a la promoción de la educación inclusiva. Estas prácticas administrativas no solo están orientadas hacia el cumplimiento de los objetivos curriculares, sino que incorporan aspectos esenciales para garantizar la inclusión de todo el estudiantado, independientemente de sus características individuales. No obstante, se sugiere el fortalecimiento de estas prácticas involucrando a todos los actores implicados en la comunidad educativa. Además, se recomienda impulsar la participación activa y cultivar una cultura de inclusión como pilares fundamentales para desarrollar entornos educativos que aborden de manera efectiva la diversidad del estudiantado.
The relationship among macroeconomic indicators and foreign direct investments in Greece, Cyprus, Portugal and Ireland: A strategic outlook
Authors: Efthimiou Stavros G.
Published: July 2024

The main purpose of undertaking this study is to examine the relationship between macroeconomic variables and foreign direct investments. The study includes a statistical analysis of the relationship between macroeconomic indicators on one hand, and foreign direct investment on the other (Roukanas, 2020), for the period 2010–2015, in Greece, Cyprus, Portugal, and Ireland. The aforementioned analysis focused on European Union (EU) member states that were hit by the global economic recession and received assistance from the Institutions. The criterion for their selection was the implementation of fiscal adjustment programmes with the aim of enabling their stabilisation and recovery. The data that will be used were drawn from the statistical databases of the EU, where official data are published and processed with the use of the Stata statistical software. Initially, various combinations of models were explored and the most appropriate ones were selected. These selected models show the dependent variables to be dynamically influenced by the independent variables and provide an opportunity for future research to enrich the model with additional interdependent variables showing variations in the findings.
Riding the Wave: The Growing Preference for Public Transit System among Customers
Authors: Fahim Syed Muhammad , Butt Dr. Rehan Muzamil , Khan Saima Sardar , Ali Syed Zulfiqar , Lohana Manoj Kumar
Published: June 2024

Public transport is essential for urban mobility, reducing traffic congestion, and minimizing environmental impact. However, inadequate public transport conditions in Karachi have shifted interest towards private vehicles. The Green Line Bus Rapid Transit (BRT) System aims to offer a modern alternative and improve the current situation. This study aims to explore the role of technological developments, best practices, and standard operating procedures (SOPs) in improving service quality and attracting people to public transportation in Karachi. A cross-sectional study and survey were conducted in Karachi to gauge residents’ perceptions and expectations of the Green Line BRT System. Data were collected from 450 participants using a non-probability sampling technique. The findings reveal that technological advancements contribute to improved service quality and are considered significant by consumers when evaluating and selecting public transport services. Improved road quality further reinforces this connection. These insights are essential for policymakers and transport authorities to develop strategies that increase the attractiveness of public transportation and ensure sustainable urban mobility. Addressing core issues with modern technological methods can improve public transport systems and inspire further research.
Financial Distress Prediction of Islamic Banks in Top Sukuk-Issuing Countries: An Application of Altman’s Z-Score Model
Authors: Ibrahim Siti Nurulhuda , Ismail Shafinar , Abd Rahman Nur Hayati , Malan Irfah Najihah Basir , Ismail Wan Musyirah Wan
Published: July 2024

Financial stability and solvency are essential for manufacturing and service businesses driven by profit, especially the banking sector. As a service sector organization, the banking industry is vital to economic growth. Along with the financial market, both achieved significant progression, particularly in the sukuk market. Despite the possibility of complementary interaction between the sukuk market and Islamic banking institutions, there are also concerns about competitive likelihood. Thus, the study of the finance scope of these Islamic banks in top sukuk issuing countries is crucial. This study applies the Altman Z-score model to measure private-sector banks’ financial health from 2018 to 2022. The sample comprises of Islamic banks in the top sukuk-issuing countries (i.e. Malaysia, Saudi Arabia, Indonesia, Turkiye, United Arab Emirates, Bahrain, and Pakistan). It concludes that UAE, Indonesia, and Saudi Arabia are experiencing financial distress since these banks fall into the “Distress Zone” according to Z-score criteria. Meanwhile, Turkiye, Bahrain, and Pakistan are categorized under the “Grey Zone” and require further improvement on specific financial ratios. Lastly,  Malaysia is the only country under the top sukuk-issuing countries that merely achieved the “Safe Zone” criteria, implying that the Islamic banks in this country have greater financial stability rather than others.
Academic Performance (CGPA) Influences Mental Health: A Study of Students at Seremban Medical Assistant College (SMCA)
Authors: Bakri Nur  Hani Syazwani , Mat Razi Nur Aisyah Nabilah , Ahmad Mohd Firdaus , Safwan Nur Syazwani Zulaikha , Dahlan Nur Dalilah , Mokhtar Ummi Kalthum
Published: July 2024

Medical students, especially in Malaysia, face many challenges due to their field of study and expectations of their profession. It is widely acknowledged that medical courses are among the hardest academic pursuits. In Malaysia, medical students must undergo a five-year undergraduate program, continuing with a clinical rotation and practical experience to sharpen their knowledge and skills. Despite the awareness given, the stigma of mental health persists, leading medical students to hesitate in seeking help out of fear of being perceived as weak. The study identifies whether mental health influences academic performance (CGPA) among medical students at Seremban Medical Assistant College (SMCA). This study used a quantitative method, and a questionnaire was distributed to 215 respondents. The data were analyzed using the Statistical Package for Social Science (SPSS). It was found that there were significant areas where CGPA influenced the mental health of SMCA medical students. Specifically, it was observed that as CGPA increased, there was a corresponding decrease in mental health among the students. This shows that the students are experiencing mental health issues due to their responsibility to maintain a good academic performance in their field of study. In addition, this study offers valuable insight to health practitioners and students on the importance of maintaining mental health and helps in raising awareness.
The Positive Impact of the Problem Based Learning Model Assisted by Audio Visual Media on the Science Knowledge Competency
Authors: Astuti Ni Kadek Sri , Agustika Gusti Ngurah Sastra , Wiyasa I Komang Ngurah
Published: June 2024

The number of students' deficiencies in understanding science learning material is caused by the use of learning components that are less than optimal. The purpose of this study was to analyze the effect of the problem-based learning model assisted by audio-visual media on the competence of science knowledge in fifth-grade elementary school. This research is a quasi-experimental study with a non-equivalent control group design. The population in this study was fifth-grade students. The sample in this study was determined by cluster random sampling technique. The sample in this study was fifth-grade elementary school students. Data in this study were collected using the test method in the form of multiple choices. The collected data were then analyzed using descriptive statistical analysis techniques and t-test inferential statistical analysis techniques. The results of the t-test analysis obtained tcount = 8.413 and ttable = 4.027 with a significance level of 5%. The results of these calculations show that tcount>ttable, so that H0 is rejected and H1 is accepted. Therefore, it can be concluded that there is a significant influence of the problem-based learning model assisted by audio-visual media on the science knowledge competence of fifth-grade elementary school students. The implication of this research is to improve students' science knowledge competence.
An Evaluation of Graduate Students' Perceptions in ICT Utilization
Authors: Suleiman Yusuf , Ibrahim-Raji Tinuke Bilikis
Published: June 2024

Currently there is a gap in perception, use and access to ICT among postgraduate students at private universities. This is caused by factors related to aspects of the individual, such as gender and educational attainment. Therefore, this study was conducted to analyze postgraduate students perceived the use of and influence of ICT in their research efforts. The study used a descriptive survey design. The researcher chose 100 postgraduate students at random from each of the faculties at university to complete the survey questionnaire. To find out if the measurement tools were reliable and consistent, a reliability test was done. The results show that ICT utilization among postgraduate students is essential for their research work. However, many students are not perfect in the usage of ICT devices despite their availability in the school and their environment. Therefore, students should be encouraged to use ICT devices in their research activities. The usage of ICT would help the students to be more effective and efficient in their research activities.
New Design of Interactive Academic Supervision using the Waterfall Method to Improve Teachers' Pedagogical Competence
Authors: Pramita Septiana , Satyawati Sophia Tri , Wahyudi
Published: June 2024

One strategy for increasing a teacher's pedagogical competence is through academic supervision. However, its implementation has experienced many obstacles so far, so it has yet to be successful in improving teachers' pedagogical competence. This research aims to develop a new design for interactive academic supervision using the waterfall method to improve teacher pedagogical competence. This type of research is Research and Development (R&D) using the ADDIE model with a Mixed Method (sequential exploratory) approach. Research subjects included school principals, deputy principals for curriculum, and teachers—data collection techniques are done through interviews, documentation studies, observation, FDG, and questionnaires. The data collection instrument is a questionnaire. The data analysis techniques used in this research are qualitative descriptive analysis and quantitative descriptive analysis. The research results produce a waterfall-based academic supervision model and guide called SUPER WATER. Product validation results by supervision experts were 88%, and IT experts were 94% in the very high category. The test results by the principal were 91%, and five teachers were 91%. It was concluded that this product is suitable for use. The implication of this research is that Waterfall is an alternative technology that can be used to overcome problems that arise at this time.
Sorogan-Based Learning to Stimulate Early Counting Skills
Authors: Komara Osfir Candikia Rara , Sumaji  , Wahyudi  , Qoyyimuddin Ahmad Azzam Al
Published: June 2024

Beginning counting ability is an important basic ability for students to be able to answer and understand further mathematical problems, including the introduction of numbers and basic mathematical concepts. The problem discussed here is an attempt to change the conventional teaching method (lecture) at the beginning counting learning stage towards a learning approach that can better facilitate children's learning needs and create meaningful learning. This study aims to analyze the application of the Sorogan method assisted by graded student worksheets (LKS) in stimulating student’s counting skills in Calistung class. The research method used is descriptive qualitative, with a case study approach. This research was conducted involving Calistung B class students consisting of 5 children as research subjects. The research techniques used were observation, interview, and documentation. The results showed that the Sorogan method assisted by graded worksheets was able to make a positive contribution in stimulating student’s beginning counting skills. Components such as initial apperception, practice problems, discussion, and reflection applied in Sorogan learning activities play an important role in supporting the formation of deep understanding. The student-centered learning process of the Sorogan method, which prioritizes a focus on exploring aspects of individuality, supported by the use of graded worksheets, gradually helps students understand numeracy concepts, thus becoming the foundation for the continuous development of numeracy skills. This method can be an alternative for educators to improve the quality of learning early counting.
Small Sided Games Training Model to Improve Basic First Touch Football Technical Skills of Football School Students
Authors: Putra Aldo Naza , Edmizal Eval , Wulandari Indri , Amra Frizki , Atradinal  , Zarya Fiky , Munir Ali
Published: June 2024

Training modification is an important strategy in sports training to improve athlete performance, and in the context of football, SSG is one promising method. Therefore, this study aims to analyze the effectiveness of the Small Sided Games (SSG) training model in improving basic football technique skills in Muspan U-12 Year Football School (SSB) students. This study used a quantitative approach with Quasi-Experimental method, adopting Pre-test Post-test Non-Equivalent Control Group design to measure exercise effectiveness. The sample of this study consisted of SSB Muspan U-12 Year students. Data was collected through tests that measured basic football technical skills, namely passing, dribbling, and shooting. This test is carried out before and after the application of the SSG exercise model, to assess changes in basic engineering skills. The results of the data analysis showed a significant improvement in basic football technical skills after the implementation of SSG training. This is evidenced by the sig (2-tailed) value of the Independent Sample t-Test test which reaches 0.000, far below the threshold of 0.05. These findings confirm that SSG practice is effective in improving basic football technique skills in SSB Muspan U-12 Year students. The conclusions of this study are important for football coaches working with younger age groups, suggesting that exercise modification through the SSG model can be an effective strategy for improving basic technical skills.
Investigating the suitability of Subcoal® as an alternative blast furnace reductant.
Authors:   , Ojobowale Fawaz
Published: July 2024

The blast furnace is the most widely used means to producing pig iron for steel production. In the blast furnace, iron oxide is reduced to metallic iron using carbonaceous materials usually from fossil sources. The steel industry aims to reduce coke consumption and minimise CO2 emissions by improving the energy efficiency of the process and by investigating the use of carbon-neutral materials. Climate change is being driven by increases in greenhouse gases which absorb heat radiation in the atmosphere which is changing global temperatures and weather patterns. The most abundant greenhouse gas is carbon dioxide which is produced by combustion of fossil fuels such as coal, oil and natural gas. Fossil fuels are widely used in energy intensive industries such as the steel industry. This thesis, which is co-sponsored by the EPSRC and Tata Steel – Port Talbot, reports studies of alternatives to fossil fuels which have the potential to replace them particularly in blast furnace ironmaking. The alternative carbon source studied has been Subcoal® which is a refuse-derived fuel (RDF) produced by N&P Ltd. Subcoal® consists of non-recyclable carbon-based waste (mainly paper and plastic) which would otherwise be landfilled. Instead, this material is processed by sorting and heating before being extruded into pellets which was the main material supplied for this thesis work. The thesis describes an initial characterisation of Subcoal® to understand the key components. Then the thermal chemistry of Subcoal® has been studied using TGA in different gaseous environments (N2, air and CO2) to understand the kinetics of how this material might behave if injected at the bottom of a blast furnace. The data has been compared with coals supplied by Tata Steel. Then blends of Subcoal® and coal have been produced to study the thermal chemistry of mixtures of fossil fuel coal and non-fossil fuel Subcoal® and to understand if these sub-components react synergistically or antagonistically. As part of this work, the devolatilisation of coal was compared using drop tube furnace versus a horizontal tube furnace. The drop tube furnace closely mimicks the conditions in the raceway of a blast furnace. Finally, the thesis reports studies of the torrefaction or hydrothermal carbonisation of Subcoal® as potential methods to upgrade this material in terms of its potential use in ironmaking. This was the first time thermal treatment was done on Subcoal® samples. Thermal treatment was found to increase the reactivity of Subcoal®
Phraseological picture of the world of students in the system of secondary vocational education: cognitive research
Authors: Асадулина Галия Спартаковна
Published: July 2024

Представления о мире объективированы во фразеологических единицах, отражающих общечеловеческие ценности, которые являются приобретенными в период взросления и вступления во взрослую жизнь. В статье поднимается вопрос формирования фразеологической картины мира у обучающихся в учебных заведениях среднего профессионального образования России. Отмечается разница между сформированными фразеологическими картинами мира обучающихся на базе девяти (десяти) классов основного общего образования и обучающихся в высших учебных заведениях. Сопоставляются фразеологические картины мира русскоязычных и иноязычных обучающихся. Отмечено влияние возраста, уровня образования и жизненного опыта на широту используемых в речи фразеологизмов. Доказывается, что формирование картины мира зависит не только от семьи и социальной среды, в которой рос и воспитывался человек, но и от его умений и желаний познавать этот мир. Определяются основные факторы, влияющие на формирование концептов фразеологических картин мира. На основании интерпретации обучающимися фразеологических единиц делается вывод об эволюции языка.

Ideas about the world are objectified in phraseological units reflecting universal human values that are acquired over time growing up and entering adulthood. The article raises the issue of the formation of a phraseological picture of the world among students in educational institutions of secondary vocational education in Russia. There is a difference between the formed phraseological pictures of the world of students on the basis of nine/ten grades of basic general education and students in higher educational institutions. The phraseological pictures of the world of Russian-speaking and foreign-speaking students are compared. The influence of age, level of education and life experience on the breadth of phraseological units used in speech is noted. It is proved that the formation of a picture of the world depends not only on the family and the social environment in which a person grew up and was brought up, but also on his skills and desires to explore this world. The main factors influencing the formation of concepts of phraseological pictures of the world are determined. Based on the interpretation of phraseological units by students, a conclusion is made about the evolution of the language.
Efforts to Improve Learning Outcomes of Myob Subjects Through Interactive Learning Media Based Video Tutorial for Students Class XII Accounting SMK
Authors: Rizki Aulia Muhammad , Hidayat Nurdin , Yanti Zainal Vetri
Published: June 2024

The problems in this research are: (1) The use of conventional learning models is not something bad, but itis felt to be less effective because students cannot realize their activeness in the learning process.(2) Students are less active in the learning process. (3) Low Myob learning outcomes. This research aims to analyze the increase in activity and learning outcomes of students using interactive learning media based on Video Tutorials in class XII Accounting in the odd semester of SMK PGRI 2 Bandar Lampung for the 2023/2024 academic year. This research is Classroom Action Research (PTK) which was held at SMK PGRI 2 Bandar Lampung in the odd semester of the 2023/2024 academic year in collaboration with the Myob class XII Accounting subject teacher. The subjects of this classroom action research are students of class Based on the research results, Myob learning using interactive learning media based on video tutorials can improve the activities and learning outcomes of class XII Accounting students at SMK PGRI 2 Bandar Lampung. This is proven by the learning activities obtained by students. The percentage increase in overall student learning activity was 74.23 (Quite Active) in cycle 1 and increased to 81.64 (Very Active) in cycle II, there was an increase in student activity from cycle I to cycle II of 7.41. Meanwhile, the student's myob learning results from cycle I to cycle II have increased and have shown the goal of the success indicator being 80%. In cycle 1 there was a percentage of learning completeness of 6 students with an average score of 72.64 (35.3%) and in cycle II there were 14 students with an average score of 79.41 (82.3%) students. which was completed by a total of 17 students, so there was an increase of 47%.
Analysis of Shopee Pay Digital Payment Adoption in Jakarta with Innovation Diffusion Theory
Authors:   Universitas Pembangunan Nasional Veteran Jakarta, Aditya Ricky , Rivaldi Rahmad , Al Mizan Rama , Amalia Romadhon Ismi , Ilham Nofitra Muhammad
Published: June 2024

The increase in internet users has significantly impacted people's behaviour patterns in making payment transactions from offline to online. One of the dominating online or digital payment systems with a large number of e-wallet users and frequency is Shopee Pay. The dominance of this application, which quickly outperforms its competitors, is inseparable from its users' good acceptance of something new. Technological diffusion theory explained how an innovation is adopted over time by examining the decision to adopt the process. Therefore, this research aimed to determine the factors affecting Shopee Pay services adoption in Jakarta.Data were collected from 100 Shopee Pay users in Jakarta. The descriptive statistics and statistical data analysis using Smart PLS software were carried out for outer and inner model analysis and hypothesis testing. The results showed that Relative Advantage, Observability and Perceived Risk significantly affect adoption. In contrast, Compatibility, Complexity, and Trialability have an insignificant effect on adoption. Number of respondent, coverage area of the survey and period of research. Future research is expected to be able to use other models besides the Diffusion of Innovation Theory to better identify other additional factors capable of affecting the adoption of Shopee Pay digital payment services and Shopee Pay digital payment is recommended to offer services that are more compatible with various lifestyle needs and beliefs to meet the expectations of current users. This survey has difference with previous research because of adoption level of digital payment specifically focus on Shopee Pay then using Innovation Diffusion Theory as model of research.
The Effect of Fieldwork Practices, Information on the World of Work and Motivation to Enter the World of Work on Job Readiness
Authors:   Universitas Lampung, Kailan Fikri , Pujiati Pujiati , Suroto Suroto , Komang Winatha I , Rahmawati Fanni
Published: June 2024

A workforce with professional competence is a need for market share in the current era. This effort can be taken through the world of education, one of which is by implementing fieldwork practices. This study aims to determine the effect of fieldwork practices, information on the world of work, and motivation to enter the world of work on job readiness. The research method uses descriptive verification with ex post facto approach and survey. The population in the study was class XII students majoring in marketing SMKN 4 Bandar Lampung with non-probability sampling techniques. Data collection techniques with questionnaires, interviews, and documentation. SPSS software-assisted testing and data processing. The results of this study show that there is an influence of fieldwork practices, information on the world of work, and motivation to enter the world of work on the job readiness of class XII students of SMK Negeri 4 Bandar Lampung. Learners can integrate real experience with formal Education that provides in-depth knowledge of job demands while encouraging motivation and job readiness.
Perancangan aplikasi untuk peramalan penjualan dan perencanaan pembelian persediaan ayam potong
Authors: Dewi Agnes Nanda Puspita , Daryanto Yosef
Published: June 2024

Aplikasi berbasis website banyak dikembangkan untuk membantu aktivitas bisnis yang dapat diakses dari komputer maupun telepon genggam dengan spesifikasi yang beragam sehingga memudahkan penggunanya. Pada penelitian ini dikembangkan aplikasi berbasis website untuk membantu aktivitas peramalan penjualan dan perencanaan pembelian persediaan ayam potong yang akan dijual pada usaha kecil. Peramalan dilakukan untuk mengatasi kekurangan dan kelebihan persediaan yang diakibatkan karena permintaan yang bersifat fluktuatif serta belum adanya pencatatan dan evaluasi penjualan. Peramalan dilakukan menggunakan metode FB Prophet yang memiliki nilai error terkecil. Perhitungan pembelian persediaan ayam dilakukan secara khusus dengan mempertimbangkan penyusutan berat dan kerugian akibat ayam yang mati. Perancangan dimulai dengan perancangan user interface, pembuatan source code, testing, dan deploying program. Aplikasi dibangun menggunakan bantuan Visual Studio Code dengan bahasa pemrograman Python, Flask micro-framework, dan XAMPP localhost. Rancangan aplikasi berbasis website yang telah dibuat membantu owner dan pekerja untuk menentukan jumlah pembelian dan melihat data historis sebelumnya. Aplikasi ini membantu perencanaan yang lebih mudah dan akurat ditunjukkan dengan pengeluaran lebih kecil sebesar Rp. 356.854,09 selama 2 minggu implementasi dengan memberikan service level yang sesuai dan tepat berdasarkan perhitungan biaya yaitu sebesar 85%.
Analisis benchmarking dalam menilai dan meningkatkan kinerja lingkungan industri pupuk
Authors: Marzuki Mohamad , Prasetyo Tri B. , Utami Arie S.
Published: June 2024

Perusahaan X adalah perusahaan yang berpartisipasi dalam PROPER yang berkomitmen mengutamakan pengelolaan lingkungan hidup. Sebagai bukti, perlu dilakukan pengukuran kinerja lingkungan secara berkala. Studi ini bertujuan untuk mengukur dan membandingkan seberapa baik kinerja lingkungan hidup yang dilaksanakan oleh perusahaan dengan perusahaan sejenis selama tahun 2021 dan pemenuhan prasyarat mengikuti PROPER. Metode benchmarking digunakan untuk mengetahui posisi peringkat kinerja lingkungan perusahaan tahun 2021 dibandingkan 17 perusahaan sejenis: 5 perusahaan skala nasional, 6 perusahaan Asia dan 6 perusahaan internasional. Pengumpulan data melalui wawancara dan observasi. Benchmarking dilakukan pada 10 aspek pengelolaan lingkungan hidup mencakup energi amonia, energi urea, emisi GRK (CO2), emisi NH3, emisi partikulat, limbah B3, limbah non B3, konsumsi air, beban pencemaran NH3 dan keanekaragaman hayati vegetasi. Hasil analisis menunjukkan terdapat 3 aspek dengan peringkat 25% terbaik pada skala nasional, 4 pada skala Asia, 4 pada skala internasional, 4 aspek dengan peringkat 50% rata-rata pada skala nasional, 3 pada skala Asia, 3 pada skala internasional, 2 aspek dengan peringkat 25% terbawah pada skala nasional, 1 pada skala Asia dan 1 aspek pada keanekaragaman hayati tinggi.
V2G Uygulamalarında Elektrikli Araçların Dağıtım Şebekesine Optimum Entegrasyonunun Analizi İçin Newton Raphson Temelli Yeni Bir Model
Authors: Kuzu Bünyamin , Nurmuhammed Mustafa , Akdağ Ozan , Karadağ Teoman
Published: June 2024

Son yıllarda, Elektrikli Araç (EA) üretimi ve kullanımı hızla artmaktadır. EA'lar, yapısı gereği enerji depolama kapasitesine sahip olduklarından, elektrik şebekesi üzerinde yedek güç kaynağı ve yardımcı hizmetler sağlama gibi işlevleri yerine getirebilecekleri fikirleri ortaya çıkmıştır. Bu fikirlerden biri, araçtan şebekeye enerji transferi olan Vehicle-to-Grid (V2G) konseptidir. Bu çalışmada, EA'lara ait şarj istasyonlarının şebekeye optimum şekilde entegrasyonu ve EA'ların V2G konsepti ile şebekeye elektrik enerjisi aktarımının incelenmesi için Newton Raphson temelli yeni bir model önerilmektedir. Önerilen çalışmanın etkinliğinin incelenmesi için öncelikle IEEE 33 bara sistemi DigSilent yazılımı ile modellemiştir. Sonrasında bu çalışmada sunulan yeni model ile güç sisteminde EA şarj istasyonlarının optimum entegrasyonu sağlatılmıştır. Çalışma kapsamında, EA'ların şarj/deşarj durumları simüle edilerek V2G konsepti analiz edilmiştir. Böylece, bu çalışma ile EA'ların hem mevcut şebeke üzerindeki etkileri hem de çevresel etkileri detaylı olarak incelenmiştir. Analiz sonucunda, 156 EA radyal dağıtım şebekesine (optimum) entegre edilmiş ve 10 saatte toplam 4464 kWh elektrik enerjisi şebekeye aktarılarak yaklaşık 1519 kg CO2 salınımı azaltılmıştır. Bu çalışma, V2G konsepti ile elektrik şebekesine pik talep saatlerinde destek olmak, yük dengelenmesi, araçlarda depolanan yenilenebilir enerjinin kullanılabilmesi, sistemdeki darboğazların ve karbon salınımının azaltılması için EA'ların şebeke entegrasyonunu teşvik etmektedir.
Bulanık Mantık Tabanlı Rogers ve IEC Metotlar Kullanarak Transformatör Arızaların Belirlenmesi
Authors: Turan Abdurrahim , Çalışkan Abuzer
Published: June 2024

Elektrik enerjisinin iletimi ve dağıtımında kullanılan teçhizatlardan biri olan güç transformatörlerinde meydana gelebilecek arızaların önceden tespit edilmesi; sistemin ve teçhizatın korunmasını sağlar. Arızaların tespiti için kullanılan yağda çözünmüş gaz analizi ile daha arızanın başlangıç aşamasında arızaya müdahale edilebilmektedir. Arızaların sonucu oluşan bu gazlar transformatör yağından örnekler alınarak yağda çözünmüş gaz analiz (DGA) sistemlerinde değerlendirilir. DGA temel olarak iki şekilde uygulanır. Bunların en bilineni klasik yöntemler ve son zamanlarda geliştirilen akıllı sistemler yani esnek hesaplama yöntemleridir. Klasik sistemlerin arıza belirlemedeki doğruluğunu arttırmak için akıllı sistemler kullanılır. Bu çalışmada gaz oranları kullanarak bulanık Rogers ile bulanık IEC (International Electrotechnical Commission) oran ve klasik IEC ve Rogers oran yöntemleri kullanarak arızaların tespiti yapılmıştır. Bulanık yöntemlerin klasik yöntemlere göre daha iyi sonuç verdiği görülmüştür.
Deep learning approaches for autonomous crack detection in concrete wall, brick deck and pavement
Authors: Şermet Fethi , Pacal Ishak
Published: June 2024

Detecting cracks is vital for inspecting and maintaining concrete structures, enabling early intervention and preventing potential damage. The advent of computer vision and image processing in civil engineering has ushered in deep learning-based semi-automatic/automatic techniques, replacing traditional visual inspections. These methods, driven by autonomous diagnosis, have applications across various sectors, fostering rapid progress in civil engineering. In this study, we present an approach that combines vision transformers and convolutional neural networks (CNN) for autonomously diagnosing cracks in bridges, roads, and walls. Performance enhancement was achieved through transfer learning, data augmentation, and optimized hyperparameters, utilizing popular CNN and ViT architectures. The proposed method was tested on the SDNET2018 dataset, comprising over 56,000 images. Experimental results demonstrated the approach's effectiveness, achieving high accuracy in detecting road cracks at 96.41%, wall cracks at 92.76%, and bridge cracks at 92.81%. These findings highlight the promising potential of deep learning in this field.
Farklı soğutma ortamları kullanılarak ısıl işlem görmüş Ti6Al4V alaşımının SBF ve Hank solüsyonlarında biyokorozyon davranışının incelenmesi
Authors: Altınsoy Şakir , Yardımcı Rezzan , Köse Fatma Zehra , Koç Gökçe
Published: June 2024

Ti6Al4V alaşımı mükemmel korozyon direnci, düşük yoğunluk, yüksek mekanik özellikler ve biyouyumluluk özellikleri nedeniyle ortodonti, medikal implant, cerrahi aletler, gıda ve havacılık endüstrisi gibi birçok alanda kullanılmaktadır. Özellikle biyomalzeme olarak kullanımı korozif ortamlara karşı mekanizmasının anlaşılmasını zorunlu kılmıştır. α+β alaşım gurubuna sahip Ti6Al4V alaşımının ısıl işlem sonrası birçok özelliği iyileştirilebilir. Bu çalışmada, Ti6Al4V alaşımına 1100°C sıcaklıkta 20 dak ısıl işlem uygulanarak su, hava ve yağ ortamlarında soğutulmuştur. Farklı soğutma ortamlarında işlem görmüş numunelerin SBF (yapay vücut sıvısı) ve Hank solüsyonlarına maruz kalması sonucu mikro yapıdaki faz dönüşümlerinin sertlik, yüzey kalitesi, işlenebilirlik ve korozyon özelliklerine etkileri incelenmiştir. Sonuçlara göre yüksek sıcaklıklarda oluşan ikincil fazların malzemenin mekanik ve korozyon özelliklerini etkilediği tespit edilmiştir. Soğutma ortamının ve korozif ortamın mekanik özellikler ve korozyon direnci üzerinde önemli bir etkiye sahip olduğu belirlenmiştir. Yağ ve havada gerçekleştirilen soğutma işlemi sonrasında her iki çözeltide de parçaların korozyon direncinin arttığı gözlemlenmiştir. Ayrıca işleme sonrası kesici uçlarda uç yüzeyinde kaplama ayrılması ve serbest yüzey aşınması tespit edilmiştir.
Diyarbakır Meryem Ana Kilisesi'nin Yapım Teknikleri
Authors: Saylık Sultan , Dalkılıç Neslihan
Published: June 2024

Diyarbakır Meryem Ana Kilisesi, 6. yüzyılda inşa edilmiştir. Yapıldığı dönem tetrakonch plan tipinde olan kilise, zamanla uğradığı değişimler sonucunda bugünkü durumuna ulaşmıştır. Bugün, sadece kilisenin ilk yapıldığı dönemde mevcut olan apsis bölümü ve bazı dış duvar parçaları ayakta kalmıştır. Yapının ilk yapıldığı dönemde apsis olduğu düşünülen bölüm, daha sonra yapılan değişikliklerle narteks, naos ve apsis bölümlerinden oluşan bir kiliseye dönüştürülmüştür. Meryem Ana Kilisesi’nde farklı dönemlere bağlı olarak farklı malzemeler ve yapım teknikleri uygulanmıştır. Bu çalışma kapsamında yapılan incelemeler, yapının günümüze ulaşan mevcut durumu üzerinden analiz edilerek sunulmuştur. Tüm yapım detayları fotoğraflar ve çizimlerle detaylandırılarak anlatılmıştır. Kilisenin yapım teknikleri; döşeme, duvarlar, ayak ve sütunlar, kubbe, kemerler, kapı ve pencereler ile çan kulesi başlıkları altında incelenmiştir.
Derin Öğrenme ve Özellik Seçimi Yaklaşımları Kullanılarak Göz Hastalıkları Tespiti
Authors: Ciran Ahmet , Özbay Erdal
Published: June 2024

Göz sağlığı, önemli bir halk sağlığı konusudur ve göz hastalıkları dünya çapında ciddi sağlık sorunlarına neden olmaktadır. Göz hastalıkları, görme yeteneğini etkileyebilen ve yaşam kalitesini önemli ölçüde azaltabilen çeşitli sağlık sorunlarıdır. Bunlar arasında normal göz sağlığı, glukom, diyabetik retinopati ve katarakt önemli yer tutmaktadır. Bu hastalıkların erken tanınması ve uygun tedavi yöntemlerinin uygulanması, göz sağlığının korunması ve görme kayıplarının en aza indirilmesi açısından hayati öneme sahiptir. Son dönemlerde, göz hastalıklarının teşhisi için yapay zekâ tekniklerinin kullanımı yaygınlaşmaktadır. Bu teknikler, görüntü analizi ve derin öğrenme gibi ileri algoritmaları içerir ve hastalıkların erken teşhisi ve tedavisi için önemli bir araç haline gelmektedir. Bu çalışmada, göz hastalıklarının fundus görüntülerinden doğru teşhis edilmesi için derin öğrenme ve özellik seçimi yöntemlerinin kombinasyonu yoluyla metasezgisel yöntemlerle optimize edilmiş bir metodoloji geliştirilmiştir. Bu çalışmada, dört sınıflı bir veri setinden elde edilen görüntüler üzerinde özellik çıkarımı için önceden eğitilmiş derin öğrenme mimarileri olan ResNet101, DenseNet201 ve DarkNet53 kullanılmıştır. Bu mimarilerden elde edilen özellikler birleştirilerek bir hibrit özellik havuzu oluşturulmuştur. Oluşturulan bu havuz, görüntülerin daha etkili bir şekilde temsil edilmesini sağlamak için kullanılmıştır. Elde edilen özelliklerin içinden önemsiz olanları elemek için metasezgisel bir optimizasyon yöntemi olan parçacık sürü optimizasyonu (PSO) kullanılmıştır. Görüntülerin sınıflandırılması için makine öğrenmesi yöntemlerinden olan destek vektör makinesi (SVM) tercih edilmiştir. SVM'in performansını artırmak amacıyla, hiperparametrelerin seçimi için Bayesian optimizasyon yöntemi kullanılmıştır. Bu optimizasyon tekniği, SVM'nin daha iyi bir şekilde ayarlanmasına ve veri setine uyum sağlamasına yardımcı olmuştur. Deneysel çalışmaların sonuçlarına göre, sınıflandırma doğruluğu %93.8 olarak belirlenmiştir. Bu sonuçlar, önerilen yöntemin göz hastalıklarının tespitinde etkili bir araç olarak kullanılabileceğini göstermektedir. Bu çalışma, yapay zeka tekniklerinin tıbbi görüntüleme alanında önemli bir rol oynayabileceğini ve göz hastalıklarının erken teşhisinde kullanılabilecek potansiyel bir araç olduğunu vurgulamaktadır.
Atık Taşıt Lastik Çelik Lifinin Beton Davranışına Etkisi
Authors: Ayhan Ersin , Doğruyol Murat , Kıpçak Fırat , Karaşin Abdulhalim
Published: June 2024

Sürdürülebilirlik kavramı Dünyada ve insan hayatında önemli bir yer teşkil etmektedir. Teknolojinin ilerlemesi ile farklı sektörler çözümler geliştirerek insana yatırım adı ile hayatın zorluklarını kolaylaştırmaya çalışmaktadır. Taşıtlar da bu söylemi doğrulayan etmenlerden birisidir. Dünyanın artan nüfusu karşısında ortaya çıkan taşıt arzı bu sayının çoğalmasına sebep olmaktadır. Böylece artan taşıt sayısına bağlı olarak servis ömrünü tamamlayan atık taşıt lastikleri de ortaya çıkmaktadır. Atıkların düzgün ve akıllı yöntemler ile bertaraf edilmemesi hem ekonomik hem de çevresel zorlukları beraberinde getirmektedir. Bu zorlukların yenilmesi bağlamında gelişen teknoloji bir takım çareleri beraberinde getirmiştir. Atık taşıt lastiklerinin akıllı yöntemlerle bertaraf edilmesine ilişkin enerji üretimi, hammadde sağlama, dönüştürme gibi bir takım uygulamalar bulunmaktadır. Cesaret verici uygulamalar bilim insanlarının daha çok dikkatini çekerek onları, atık lastiklerinin bazı türevlerinin inşaat sektörünün en çok talep gören malzemesi olan betonda kullanımına yönelik çalışmalara itmiştir. Bu türevlerden biri olan atık lastik çelik lifi ile ilgili birçok bilimsel çalışma yapılmıştır. Ancak yapılan araştırmalar çelik lifin betonda kullanımına yönelik daha çok çalışma yapılması ve bu yönde bilgi alınması gerektiğini göstermektedir. Bu bakımdan çalışma kapsamında atık çelik lifler kullanılarak literatürün zenginleşmesi ve neden sonuç ilişkisi ile sonuçların irdelenerek tartışılması amaçlanmıştır. Deneysel çalışmalar kapsamında 150×300 mm ebatlarında silindir ve 150×150×600 ebatlarında kiriş numuneler üretilmiştir. Çelik lifler betona hacimce %0.4 ve %0.8 oranlarında agrega yerine ikame olarak kullanılmıştır. Basınç, Eğilme, Ultrases Darbe Hızı deneyleri yapılarak sonuçlar tartışılmıştır. Yapılan deneysel çalışmalar sonucunda atık araç lastik çeliği katkısının beton basıncına bir olumlu katkısının olmadığı ancak eğilme dayanımını artırdığı, beton basıncı ile ultrases dalga hızları arasında paralel bir ilişki olduğu sonucuna varılmıştır.
Lefkoşa Selimiye Camii Yapısal Özellikleri ve İyileştirilmiş Deprem Performansı İçin Bir Ön Çalışma
Authors: Alan Tuğçe , İlki Alper
Published: June 2024

Tarihi yapılar, kültürel mirasın gelecek nesillere aktarılabilmesinde önemli rol oynayan unsurlardır. Bu devamlılığın sağlanabilmesi için tarihi yapıların depremlere rağmen asırlar boyunca ayakta kalabilmesi esas amaçlardan olmuştur. Depremin neden olabileceği yıkımların önüne geçebilmek için öncelikle tarihi yapıların deprem güvenliği belirlenmeli ve gerekmesi halinde deprem performansının iyileştirilmesi için çalışmalar yapılmalıdır. Bu makale kapsamında Kuzey Kıbrıs Türk Cumhuriyeti’ne ait Lefkoşa ilinde yer alan gotik kilise örneklerinden Selimiye Camii taşıyıcı sistemi yapısal davranışı, makro modelleme yaklaşımı ile tepki spektrumu analizi yapılarak değerlendirilmiştir. Makalede, yapının düşey yükler ve deprem etkileri altındaki performansının iyileştirilmesine yönelik müdahale önerilerine yer verilmiştir. Modelleme, analiz ve öneriler sadece tez ve makale çalışması kapsamında yapılmış olup, yapı üzerinde gerçekleştirilmekte olan restorasyon çalışmaları farklı modelleme, analizler ve müdahalelere dayanmaktadır.
ARKA Model Implementation (Aktivitas, Refleksi, Konseptualisasi, Aplikasi) in Islamic Education Learning: Building 21st Century Competencies
Authors: Ilyasa Faisal Fauzan , Rahardja Muhammad Nurfaizi Arya , Firmansyah Mokh. Iman , Faqihuddin Achmad , Muflih Abdillah
Published: June 2024

Learning models play a vital role in supporting the achievement of learning objectives as conceptual frameworks that describe systematic procedures and guide designers.  This study aims to describe the ARKA Model (Aktivitas, Refleksi, Konseptualisasi, Aplikasi) in PAI learning at SMA Negeri Bandung through learning system theory, including planning, implementation, and evaluation. This research uses a qualitative approach and case study method with data collection techniques through observation, interviews, and documentation, which are then analyzed through the reduction stage. This research found three essential things: (1) planning the use of the ARKA model in PAI learning consists of preparing lesson plans, which include objectives, materials, methods, media, and teaching resources. The curriculum used is the 2013 national curriculum. (2) The implementation of PAI learning using the ARKA model consists of four stages adapted to the syntax of this ARKA model: Activity, Reflection, Conceptualization, and Application. These four steps have been included in the core activities. (3) The evaluation of PAI learning using the ARKA model is divided into formative and summative evaluation. The evaluation results of the ARKA learning model in PAI learning positively impact students in improving their ability to think critically, communicate well, collaborate, and be creative.
Metode Suku Kata sebagai Strategi Eskalasi Kemampuan Membaca Permulaan Siswa
Authors: Marisa Aida , Restela Rika
Published: June 2024

Riset ini bertujuan buat mendeskripsikan keefektivan metode suku kata terhadap siswa kelas rendah yang bersumber pada kenyataan dilapangan masih banyak siswa yang membaca mengeja. Oleh sebab itu, 2 pelaksanaan tata cara suku kata ini efisien digunakan buat siswa supaya membaca mudah tanpa mengeja. Riset ini memakai tata cara riset kualitatif dengan tipe riset studi literatur. Hasil dari riset ini merupakan metode suku kata bisa tingkatkan keahlian membaca spesialnya membaca permulaan pada siswa kelas rendah. Perihal tersebut bisa dilihat dari kenaikan keahlian membaca siswa. Perihal tersebut pula tidak terlepas dari kedudukan orang tua di rumah yang wajib senantiasa mendampingi anaknya buat belajar membaca. Ada kelebihan serta kekurangan pada pelaksanaan tata cara suku kata dalam pendidikan membaca permulaan. Kelebihan dari tata cara suku kata ini merupakan siswa bisa membaca dengan mudah tanpa wajib mengeja terlebih dulu, perihal ini sangat menolong siswa terlebih pada dikala pendidikan di kelas. Sebaliknya kekurangan pada tata cara ini merupakan siswa belum mudah membaca ataupun kesusahan bila membaca teks yang terdapat huruf tunggal di akhir ataupun“ ng”. Supaya tata cara suku kata ini tercapai cocok yang diharapkan lebih baik guru memetakan keahlian membaca dini siswa setelah itu guru pula mengkomunikasikan dengan orang tua, perihal ini diharapkan apa yang telah dibelajarkan di sekolah bisa dilanjutkan di rumah guna tingkatkan pendidikan membaca permulaan siswa.
Inovasi Monopoli Games Smart dalam Pembelajaran Tematik
Authors: Waruwu Agnes Novitasari , Sembiring Masta Marselina , Aulia Sri Mustika , Nasution Yusra
Published: June 2024

Penelitian dilakukan dengan tujuan mengetahui validitas, praktikalitas, dan efektivitas Media Monopoli Games Smart untuk Meningkatkan Hasil Belajar Tematik pada Tema 6 Subtema 1 Kelas VI SDN 081235 Sibolga. Penelitian menggunakan metode penelitian dan pengembangan (research and development) dengan model pengembangan ADDIE yang terdiri dari 5 tahapan diantaranya Analisis (Analysis), Desain (Design), Pengembangan (Development), Implementasi (Implementation), dan Evaluasi (Evaluation). Berdasarkan hasil penelitian pada uji validitas diperoleh hasil uji validasi media memperoleh persentase kelayakan 96% dengan kategori “Sangat Valid”, hasil uji validasi materi memperoleh persentase kelayakan 96% dengan kategori “Sangat Valid”, hasil uji praktikalitas memperoleh persentase 94,66 dengan kategori “Sangat Praktis”, dan uji efektivitas dengan rata-rata n-gain sebesar 10,95 dengan kategori “tinggi” dan rata-rata persentase n-gain mencapai 72,99% dengan kategori “Cukup Efektif”. Berdasarkan hasil tersebut dapat disimpulkan bahwa Media Monopoli Games Smart valid, praktis, dan efektif digunakan untuk meningkatkan hasil belajar tematik siswa. Kata kunci: Monopoli Games Smart, Hasil Belajar, Pengembangan