bluuebunny/crossref_metadata_2025 huggingface dataset:
Implementación de estrategias de difusión digital para asociaciones del instituto de economía popular y solidaria
Authors: Omar Cruz-Oña Ariel , Cornejo Mayorga Ana del Rocio , Samaniego Arias Mayra Alexandra , Córdova Durán Edmundo Guillermo
Published: December 2024

El estudio aborda la implementación de estrategias de difusión digital en asociaciones del Instituto de Economía Popular y Solidaria (IEPS) de las zonas 5 y 8 en Ecuador, con el objetivo de mejorar la comercialización de productos agrícolas y artesanales. Se desarrolló un programa de capacitación dirigido a 300 beneficiarios, enfocándose en el manejo de herramientas tecnológicas, creación de contenido audiovisual y promoción de marca. La metodología incluyó talleres y actividades prácticas para fortalecer las competencias digitales y de mercadeo. Los resultados evidenciaron una mejora significativa en las habilidades digitales de los participantes, aumentando su visibilidad y competitividad en el mercado. El uso de aplicaciones móviles y contenido digital impactó positivamente en sus ventas y presencia en plataformas en línea. Se destaca la necesidad de continuar con capacitaciones periódicas para garantizar la sostenibilidad de estos logros.
Natural heritage analytical study of old beech forests and primeval beech forests as a potential for nature tourism sustainable development
Authors: Matušíková Daniela , Vargová Tünde Dzurov , Lukáč Michal , Švedová Milena , Ganobčík Ján
Published: December 2024

Natural and cultural wealth in the tourism market plays a significant role in tourism development ideally in a sustainable way. The papers´ research evaluates the potential of old beech forests and primeval beech forests in Europe as targets for possible future nature tourism, emphasizing their ecological, aesthetic, and cultural significance. The analysis, which utilizes a combination of qualitative and quantitative methods including the Shapiro-Wilk normality test, Mann-Whitney test, Kruskal-Wallis test, and Spearman correlation coefficient processed through Gretl software, highlights the significant role these forests play in biodiversity conservation, climate regulation, and sustainable development in the context of the area of the country, where they are located. These forests, rated as premium destinations for nature tourism or ecotourism, should be integrated into broader tourism strategies. Their preservation and proper utilization can significantly contribute to the development of the local economy while also providing educational and recreational opportunities for residents and tourists.
Investigation of the Influence of Bulbous Bow on the Wake Field and Power Demand
Authors: Mohamed Elhadad Alaaeldeen , Abo El-Ela Ahmed Mokhtar , Hussien Mohamed Mostafa
Published: December 2024

Ship resistance is one of the main factors affecting the ship's design and the selection of her propulsion system. Propeller designers must accurately estimate the wake field in waves behind the ship in order to create effective propeller geometry under actual operating circumstances. In this study, various bulbous bow shapes of the DTMB 5415-51 surface combatant were numerically investigated using a CFD method. The aim of the study is the evaluation of the impact of the bulbous bow shape variation not only on the ship resistance but also on the wake field as well as on the propulsion performance. Three-dimensional URANS numerical flow simulations of combatant ship were applied and systematically altered bow shapes in calm water and waves were carried out. For the validation of the numerical simulations, three alternative mesh sizes for Froude numbers ranging from 0.10 to 0.40 are considered; results are compared with those of the towing tank in terms of wave field, resistance coefficients, and propulsive efficiency. The results show a considerably different hydrodynamic characteristics for different bow shapes.
Investigation of Vibrational Response of Bio-Lubricants and SAE40 for Journal Bearing Application
Authors: Noorazzmy Muhammad Hafizzuddin , Sadiq Muhammad Imran , Mohd Sabri Mohd Anas , Mohamed Intan Fadhlina , Salleh Hamidon , Muhalhal Hasan Abdualatif , W Ghopa Wan Aizon
Published: December 2024

Amidst the burgeoning landscape of contemporary industrial growth, journal bearings have become integral components extensively employed across diverse rotating machinery. The intricate dynamics of journal bearings, particularly the robust nonlinear characteristics manifesting in the oil film pressure, constitute a focal point in this study. The research endeavours involve designing a journal bearing test rig (JBTR) to unravel the dynamic properties of journal bearings through a series of experimental trials. The operational speed for the analysis is set to 900 rpm and 1200 rpm to simulate low and high speed operations. The test sample includes conventional lubricants, SAE40 and bio-lubricants, palm olein, soybean and rapeseed oil. The bio-lubricants are compared to SAE40 to validate its vibrational response. The static characteristics (viscosity, eccentricity ratio, attitude angle) which represent the operational factors are also presented. A thorough analysis of the influences of bearing load, eccentric mass and rotational speed on dynamic characteristics yields nuanced insights and specific findings. Journal bearings, essential machine components facilitating relative movement among working parts, bear the dual role of load distribution and preservation of positional stability. Vibrational diagnostics, tantamount to the meticulous scrutiny of vibrational parameters, emerges as a pivotal technique for the comprehensive diagnostics of critical machinery in industrial plants. Earlier studies underscore the significance of bearing issues, attributing approximately 40% of machine failures to such concerns. Consequently, researchers actively discern the causative factors of bearing damage and pioneering innovative techniques for detecting destructive bearing issues. The experimental result from JBTR showcase the capabilities of bio-lubricants during operations yielding results such that, at 900 rpm the velocity reactions is at 14% average difference compared to SAE 40, displacement value at 1% and 46% average percentage diffenrence at 25%. While at 1200 rpm, the velocity value also shows at 14% differences compared to SAE40,displacement percentage at 25% and acceleration percentage difference of 44%. The initial hypothesis may suggest a probable applications of bio-lubricants within rolling bearings system.
Experimental Study on Heat Transfer Characteristics of a ⊥-shaped Oscillating Heat Pipe Used in the Battery Thermal Management System
Authors: Hongkun Lu , Noor Muhamad Mat , Shuigen Ning , Kadirgama Kumaran , Badruddin Irfan Anjum , Kamangar Sarfaraz
Published: December 2024

This paper introduces a ⊥-shaped oscillating heat pipe (OHP) with the purpose of improving the volumetric utilization of the battery thermal management system (BTMS) for electric vehicles. Distinguished from standard OHP structures, the evaporator and condenser sections of the ⊥-shaped OHP are oriented vertically in spatial arrangement. Experimental investigations were conducted on two types of ⊥-shaped OHPs and a standard OHP, employing filling ratios from 13.1% to 32.6%, working fluid mixtures of acetone with methanol, ethanol, and water, and thermal loads from 10 to 100W. The results indicate that all the OHPs with an acetone filling ratio of 19.6% exhibit minimum thermal resistance at 30W. When employing mixed working fluids, the acetone-ethanol and acetone-methanol combinations display the least and most temperature fluctuations, respectively. The OHP with mixed working fluids achieves no more improved thermal performance than the use of acetone. As the heating power increases, the operational stability of the ⊥-type OHP improves, however, the trend is opposite for the R-⊥-type OHP. In comparison to the standard OHP, the ⊥-type OHP demonstrates stronger oscillation stability at 100W and achieves a 3.3°C lower maximum temperature on the heat collector plate.
Effect of Heat Treatment on Mechanical Characteristics and Microstructure of Aluminium Alloy AA6061
Authors: Bin Yeow Khai , Sheng Ewe Lay , Yew Weng Kean , Balasubramani Senthil Rathi , Pramono Andika Widya
Published: December 2024

Aluminium alloy 6061 (AA6061) is widely used across various industries. It has untapped potential in diverse sectors due to its exceptional strength, lightweight characteristics and corrosion resistance. It finds value in aerospace, automotive, marine, sports gear, architecture, renewable energy, electronics, healthcare devices, packaging and defence. This study investigates the impact of heat treatment on AA6061 on its microstructural and mechanical properties (tensile strength and microhardness). The main goals of this study involve assessing the mechanical properties of AA6061 after subjecting it to solution heat treatment at various temperatures and time intervals. Furthermore, the study aims to understand the relationship between microstructural alterations and mechanical properties in AA6061 following heat treatment. A combination of tensile tests, hardness tests, and scanning electron microscopy (SEM) to examine the material's microstructure. The findings reveal that the sample subjected to the heat treatment of 450°C for 60 minutes exhibited the highest tensile strength, boasting an impressive 130.9 MPa, coupled with a remarkable hardness of 19.8 HRB. Conversely, the sample treated at 550°C for 60 minutes displayed the most significant elongation percentage, reaching a remarkable 46%. These results can be explained by analysing the microstructure. Finer grain boundaries led to increased tensile strength and hardness, while a larger dendritic microstructure was linked with lower tensile strength and hardness. Remarkably, the second one led to higher elongation percentages. Therefore, precise control of the heating temperature and duration is crucial to enhance the performance of aluminium alloy, AA6061. With continuous research, alloy improvement and creative design, AA6061 have the potential to enhance performance and efficiency in these areas, driving technological advancements and better products.
Investigating Thermal Performance of Substrate Board through Forced Convection and Machine Learning
Authors: Dhumal Amol , Kulkarni Atul , Ambhore Nitin , Karvinkoppa Mathew
Published: December 2024

In this study, the thermal performance of substrate board exposed to forced convection with different heat source configurations was investigated. Seven asymmetric integrated circuit chips (heat sources) positioned at various points on the substrate board were cooled through steady-state experiments using laminar forced convection heat transfer mode. The objective was to determine the optimal layout of the seven integrated circuit chips on the board for lowering the maximum temperature. The optimal configuration was determined experimentally and was further validated by employing a machine-learning optimization strategy. Various correlations have been proposed to investigate the effect of the substrate board arrangement on the integrated circuit (IC) Chip temperature and heat transfer coefficient. These findings imply that the size and configuration of the substrate board, input heat flux, and placement of the IC chips have a significant impact on their temperature. Because the heat is discretely placed in this scenario, the temperature of the integrated circuit (IC) chips is the lowest for higher values of the non-dimensional parameter λ. This aids in efficiently reducing the temperature of chips through cooling. Another important factor in the cooling of IC chips is air velocity. The maximum temperature reduction is 14.02% at an air velocity of 3.5 m/s.
Prediction of Lateral Loads of a Propeller in Oblique Flow by CFD Method
Authors: Nam Tran The , Hoa Nguyen Thi Ngoc , Van-Vu Huynh
Published: December 2024

Significant lateral loads on the propeller can be produced under oblique flow conditions, which is critical to the integrity and safety of a ship's stern tube bearing. This paper investigates the effect of oblique flow on lateral loads of a propeller in open water condition based on CFD method. Firstly, the paper provides the theoretical basis for appear the lateral loads of a propeller when working in oblique flow. Then, PPTC propeller was employed as case study. The open water condition is simulated for different inclining angle range of 0 to 120. The numerical obtained results indicated that, the lateral loads increase with the oblique flow increasing, and the hydrodynamic forces acted on each propeller blades will be changed over time depending on the relative position of propeller blade as well as the attack angle to the propeller blade. Finally, the paper provides details of flow characteristics around the propeller at different oblique flow angles to explain the change in lateral loads of a propeller when changing the inclining angle.
Triiodothyronine Is Associated with Incidence/Resolution of Steatotic Liver Disease: Longitudinal Study in Euthyroid Korean
Authors: Kim Hye In , Kim Jun Young , Cho Jung Hwan , Han Ji Min , Suh Sunghwan , Bae Ji Cheol , Kim Tae Hyuk , Kim Sun Wook , Hahm Jong Ryeal , Chung Jae Hoon
Published: December 2024

Background: The positive relationship between triiodothyronine (T3) and steatotic liver disease (SLD) demonstrated only in crosssectional study. We aimed to evaluated whether total T3 (TT3) is associated with the development/resolution of SLD in longitudinal design.Methods: This retrospective, longitudinal, population-based cohort study included 1,665 South Korean euthyroid adults with ≥4 thyroid function test. We explored the impact of mean TT3 during follow-up on development/resolution of either SLD (diagnosed by ultrasound) or modified metabolic dysfunction-associated steatotic liver disease (MASLD) using Cox proportional hazards regression models.Results: During about median 5 years follow-up, 807/1,216 (66.3%) participants among participants without SLD at baseline developed SLD, and 253/318 (79.5%) participants among participants with SLD at baseline SLD resolved fatty liver. Mean TT3 rather than thyroid stimulating hormone or mean free thyroxine was significantly related with development (adjusted hazard ratio [HR], 1.01; 95% confidence interval [CI], 1.00 to 1.02; P=0.002) and resolution (adjusted HR, 0.97; 95% CI, 0.96 to 0.99; P=0.005) of SLD. Compared with low mean TT3 group, high mean TT3 group was positively associated with development of SLD (adjusted HR, 1.20; 95% CI, 1.05 to 1.38; P=0.008) and inversely associated with resolution of SLD (adjusted HR, 0.66; 95% CI, 0.51 to 0.85; P=0.001). The statistical significance remained for development (adjusted HR, 1.29; 95% CI, 1.10 to 1.51; P=0.001) and resolution (adjusted HR, 0.71; 95% CI, 0.54 to 0.94; P=0.018) of modified MASLD.Conclusion: In Korean euthyroid adults, TT3 level was associated with development and resolution of either SLD or modified MASLD.
Analysis of Factors Affecting Profitability (Study on Islamic Commercial Banks Registered with the Financial Services Authority in 2018 - 2022)
Authors: Nur Fadhilah Hilya Nisa , Nuryaman Nuryaman
Published: December 2024

This study aims to examine the effect of NPF, FDR, and GCG on the profitability of Islamic commercial banks. The data used is secondary data in the form of annual financial reports from 17 Islamic Commercial Banks in Indonesia registered with the Financial Services Authority for the period 2018-2022 so 69 observation data were obtained. The independent variables used are NPF, FDR, and GCG which are proxied by the number of boards of directors and the frequency of board meetings. At the same time, the dependent variable used is return on assets (ROA). The results of this study indicate that FDR has an effect on the profitability of Islamic commercial banks, while NPF, the board of directors, and the board of commissioners have no significant effect on the profitability of Islamic commercial banks.
Analysis of Brand Awareness and Halal Label on Brand Attitude
Authors: Rismawati Rika , Komariah Kokom , Mulia Z Faizal
Published: December 2024

This study aims to analyze the effect of brand awareness and halal label on brand attitude of Wardah cosmetic customers in Sukabumi City. The method used is descriptive-analytical approach with quantitative research techniques. Data were collected through observation, interviews, questionnaires, literature study, and documentation, involving 94 respondents who are consumers of Wardah products. Data analysis used multiple correlation analysis and multiple linear regression, supported by partial (t-test) and simultaneous (f-test) significance tests with the help of SPSS 26 software. The results showed that there is a strong relationship between brand awareness and halal labeling on brand attitude, with a correlation value of 0.742. The contribution of the two variables in influencing brand attitude is 88.8%, while 11.2% is influenced by other variables not studied. The t-test reveals that both brand awareness and halal labeling partially have a positive and significant influence on brand attitude. In addition, the results of the f-test show that the two variables simultaneously significantly influence brand attitude
Peningkatan kemampuan literasi dan numerasi melalui program kampus mengajar di SDK Wolomeli, desa Inegena
Authors: Nay Cesarius , Nay Yohana Aurelia , Nari Sae Floranida , Coo Reldiana Lidivika , Nenu Maria Agnes Roswita , Lili Bile Robertus
Published: December 2024

Pengabdian ini dilatarbelakangi oleh pelaksanaan program Kampus Mengajar angkatan 5, sebagai bagian dari implementasi program Merdeka Belajar Kampus Merdeka (MBKM) oleh Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi. Program ini bertujuan mengatasi tantangan pembelajaran setelah pandemi Covid-19 yang menunjukkan penurunan minat belajar, pemahaman peserta didik, serta kemampuan literasi dan numerasi. Kendala tersebut berdampak pada sekolah-sekolah yang berlokasi di daerah 3T seperti SDK Wolomeli. Hasil observasi dan wawancara awal menunjukkan tantangan signifikan dalam literasi dan numerasi siswa, terutama akibat dampak pandemi COVID-19. Dalam pengabdian ini, metode yang diterapkan yaitu pendampingan dan pelatihan terhadap siswa siswi oleh mahasiswa, yang melakukan kegiatan pembiasaan literasi dan numerasi. Observasi dan wawancara di awal penugasan dan pelaksanaan program dilakukan di SDK Wolomeli, Nusa Tenggara Timur, dan sampai pada mengevaluasi dampak program Kampus Mengajar yang telah dilakukan. Mahasiswa Kampus Mengajar merespon dengan mengimplementasikan berbagai inovasi pembelajaran, seperti kegiatan literasi pagi, penggunaan teknologi, dan permainan matematika. Hasil akhir dari kegiatan ini mencakup pembiasaan literasi dan numerasi bagi peserta didik di SDK Wolomeli serta meningkatkan peran serta kontribusi nyata perguruan tinggi dan mahasiswa dalam mendukung pembangunan nasional. Hasil wawancara menunjukkan bahwa program berhasil meningkatkan pemahaman siswa terhadap materi pembelajaran serta memungkinkan guru untuk merancang strategi mengajar yang lebih efektif. Diharapkan bahwa program ini akan memberikan kontribusi positif dalam meningkatkan keterampilan literasi dan numerasi siswa di SDK Wolomeli, menggambarkan pentingnya peran mahasiswa sebagai agen perubahan dalam meningkatkan mutu pendidikan di Indonesia.
Desa wisata yang berkelanjutan: pengembangan pariwisata melalui metode perencanaan partisipatif di desa Kertawangun
Authors: Dikky Nur Hidayat  , Yati Haryati  , Putri Adinda Sari  , Triyana Ega , Ainnurofiq  , Gunawan Muhammad Fajar , Syahidaniyah Marwa , Alam Muhammad Nur , Laksono Adil Nugrah , Shidqiya Raida Hanifi , Khoerunnisa Widya , Febrianti Rita , Hasbianur Romy Rizki , Suryawijaya Virdand Hafiz , Nofiansyah Muhammad Farhan
Published: December 2024

Desa Kertawangun merupakan salah satu desa wisata yang ada di Kabupaten Cirebon. Desa Kertawangun memiliki potensi wisata yang sangat luar biasa, seperti Bukit Pasir Salawe dan Agrowisata Budidaya Taman Lebah. Namun, potensi wisata yang ada belum dapat dimaksimalkan. Oleh karena itu, tujuan diadakannya KKN IAIN Syekh Nurjati Cirebon hadir di Desa Kertawangun untuk membantu dalam rangka pengembangan objek wisata di Desa Kertawangun dengan baik dan berkelanjutan. Pendampingan yang dilakukan oleh KKN IAIN Syekh Nurjati Cirebon berfokus kepada pengembangan wisata dengan menggunakan metode perencanaan partisipatif, antara lain: 1) Peningkatan infrastruktur dan fasilitas pendukung di Desa Kertawangun, 2) promosi dan pemasaran objek wisata Desa Kertawangun, dan 3) Sosialisasi penguatan SDM dalam mengembangkan objek wisata. Hasil dari kegiatan KKN di Desa Kertawangun sangatlah positif. Pertama, dengan dipasangnya rute jalan menuju objek wisata, semakin banyak masyarakat sekitar yang mengetahui keberadaan objek wisata Bukit Pasir Salawe dan Agrowisata Budidaya Taman Lebah. Kedua, pembuatan akun sosial media membuat objek wisata Bukit Pasir Salawe semakin dikenal masyarakat serta menjadi alat promosi yang efektif. Ketiga, melalui diadakannya kegiatan sosialisasi penguatan SDM, menjadikan perangkat desa, karang taruna, dan kelompok sadar wisata semakin baik dalam rangka mengembangkan objek wisata di Desa Kertawangun.
Sosialisasi 3 dosa besar pendidikan untuk nilai karakter melalui program kampus mengajar di SDK Bejo
Authors: Sayangan Yohanes V , Dhiu Konstantinus Dua , Laksana Dek. Ngurah Laba , Wela Herkuliana Natalia
Published: December 2024

Kegiatan sosialisasi ini membahas tentang 3 dosa besar pendidikan yang belum banyak diketahui oleh pelajar di Indonesia. Tujuan dari kegiatan ini adalah untuk mencegah tiga dosa besar dalam pendidikan bagi peserta didik di SDK Bejo. Metode yang digunakan meliputi ceramah, pemutaran video edukasi, dan sesi tanya jawab. Sosialisasi ini bertujuan membantu memperluas pemahaman peserta didik tentang tiga dosa besar serta dampak negatifnya, dan menawarkan solusi praktis untuk mendukung pengembangan kepribadian dan nilai karakter. Hasilnya, peserta didik belajar mengenai dampak perundungan, kekerasan seksual, dan intoleransi, serta cara mencegahnya. Selain itu, sekolah berkolaborasi dengan DPL dan mahasiswa untuk memberikan edukasi tentang adab berteman, adab belajar, serta dampak negatif dari perundungan dan kekerasan seksual. Sosialisasi ini melibatkan 114 peserta didik dari kelas I hingga VI, serta kepala sekolah dan beberapa guru. Kegiatan dilaksanakan pada Rabu, 3 April 2024, secara tatap muka oleh DPL dan mahasiswa Kampus Mengajar angkatan 7 dari STKIP Citra Bakti Ngada.
IMPLEMENTASI E-MODUL BERBASIS FLIPBOOK PADA PEMBELAJARAN IPAS DALAM MENINGKATKAN PEMAHAMAN SISWA KELAS V DI SEKOLAH DASAR
Authors: Yulianti Restu Eri , Purwati Panca Dewi
Published: December 2024

Penelitian ini bertujuan untuk menguji keefektifan penggunaan E-modul berbasis Flipbook sebagai upaya meningkatkan pemahaman siswa kelas V di Sekolah Dasar Negeri Gondoriyo Kecematan Ngaliyan, Semarang.Penelitian ini merupakan jenis penelitian kuantitatif eksperimen one group. Populasi yang digunakan dalam penelitian ini adakag seluruh siswa kelas V SDN Gondoriyo yang berjumlah 28 orang siswa. Teknik pengumpulan data melalui pre-test, post-test, serta angket pemahaman siswa pada materi komponen pada peta mata pelajaran IPAS. Teknik analisis data dilakukan dengan uji normalitas data, dan uji deskriptif pre-test diperoleh dengan nilairata-rata 39,57 dan post-test diperoleh nilai rata-rata 85,05. Hasil dari uji normalitas pre-test sebesar 0.200, signifikansinya 0.200>0.5 artinya berdistrubusi normal, dan hasil dari post-test sebesar 0.83, signifikasinya0.83>0.05 artinya berdistrubusi normal. Hasil dari uji homogenitas dengan nilai 0.239, signifikasinya 0.239>0.05 maka Ho ditolak dan Ha diterima dari hasil penelitian ini dapat disimpulkan bahwa terdpaat efektvitas mediapembelajaran flipbook dalam memotivasi pembelajaran IPAS pada siswa
PENGEMBANGAN MEDIA KARTU BILANGAN BERGAMBAR BERORIENTASI PADA PENGUATAN KARAKTER TERHADAP PRESTASI BELAJAR MATEMATIKA SISWA SD
Authors: Dewi Made Sri Astika , Artini Ni Putu Juni , Febryan Irwan
Published: December 2024

Penelitian pengembangan ini dilaksanakan karena rendahnya hasil dari prestasi belajar Matematika pada siswa kelas IV SD. Hal ini penyebabnya adalah kurang ketersediaan media pembelajaran yang relevan. Penelitian ini bertujuan untuk menjelaskan desain media kartu Bilangan bergambar yang berfokus pada penguatan karakter, menggambarkan hasil uji validasi media tersebut dari aspek penguatan karakter, dan menilai keefektivitasan penerapan media kartu bilangan bergambar dengan orientasi penguatan karakter. Metode yang digunakan dalam penelitian ini adalah Model ADDIE, dengan subjek penelitian berupa media kartu bilangan bergambar dan objek penelitian mencakup validitas isi media, kepraktisan, dan efektivitas media. Hasil dari penelitian ini menyatakan bahwa (1) media kartu bilangan bergambar dikembangkan menjadi 15 pasang kartu bilangan dengan isi angka-angka penyusunan operasi hitung, (2) media kartu bilangan tersebut memiliki tingkat validitas yang tinggi, yang dinilai oleh ahli desain pembelajaran, ahli media pembelajaran, dan ahli isi mata pelajaran, (3) media kartu bilangan bergambar mencapai tingkat kepraktisan yang sangat baik, baik menurut guru maupun hasil dari uji coba kelompok kecil dan perorangan, dan (4) melalui uji-t berkorelasi, media kartu bilangan bergambar terbukti efektif meningkatkan prestasi belajar Matematika siswa kelas IV SD, dengan nilai signifikansi yang memenuhi kriteria statistik yang ditetapkan.
INTERNALISASI PROFIL PELAJAR PANCASILA PADA DIMENSI GOTONG ROYONG MELALUI PEMBELAJARAN PENDIDIKAN PANCASILA SEKOLAH DASAR
Authors: Ikromah Siti , Jamaludin Ujang , Damanhuri
Published: December 2024

Penelitian ini mengkaji strategi dan proses internalisasi nilai gotong royong dalam pembelajaran pendidikan Pancasila pada siswa kelas IV di SDN Ciwandan. Penelitian ini menggunakan pendekatan kualitatif deskriptif, data diperoleh melalui wawancara, observasi, dan dokumentasi. Hasil menunjukkan peran signifikan dari strategi perencanaan pembelajaran, kegiatan pembiasaan, dan keteladanan dalam menanamkan nilai kolaborasi, kepedulian, dan berbagi 1) Strategi yang dilakukan guru dalam menginternalisasikan dimensi gotong pada pembelajaran pendidikan Pancasila yaitu melalui strategi perencanaan pembelajaran, kegiatan pembiasaan dan keteladanan. 2) Proses pelaksanaan internalisasi nilai gotong royong dilakukan melalui beberapa tahapan internalisasi yaitu tahap Transformasi Nilai (melalui metode ceramah, pemberian arahan dan motivasi), tahap Transaksi Nilai (melalui kegiatan tanya jawab, diskusi, presentasi, simulasi prakti), Trans-Internalisasi nilai (melalui keteladanan dan pembiasaan)
PENGEMBANGAN BUKU AJAR SEJARAH SENI BERBASIS AUGMENTED REALITY UNTUK MAHASISWA PENDIDIKAN SENI DAN BUDAYA KEAGAMAAN
Authors: Juliawan I Nengah , Palguna I Kadek Edi , Ardiyasa Putu , Yasa I Kadek Abdhi , Wahyuni I Gusti Ayu Desy
Published: December 2024

Penelitian ini bertujuan untuk mengembangkan buku ajar berbasis Augmented Reality (AR) yang inovatif guna meningkatkan kualitas pembelajaran Sejarah Seni. Kebaruan penelitian ini terletak pada pengembangan buku ajar berbasis AR di Indonesia yang belum banyak diterapkan dalam konteks pembelajaran seni, khususnya di bidang seni dan budaya keagamaan. Metode yang digunakan adalah Research and Development (R&D) dengan model pengembangan 4-D, yaitu pendefinisian, perancangan, pengembangan, dan penyebaran. Buku ajar yang dihasilkan menyajikan materi tentang jejak kesenian Nusantara, khususnya seni Bali, dalam format interaktif yang mengintegrasikan elemen visual dan narasi audio, serta dilengkapi dengan barcode untuk akses AR. Hasil penelitian menunjukkan bahwa penerapan AR secara signifikan meningkatkan minat dan pemahaman mahasiswa terhadap objek seni, serta menciptakan pengalaman belajar yang lebih menarik dan mendalam. Namun, penelitian ini juga mengidentifikasi tantangan dalam hal aksesibilitas teknologi, literasi digital di kalangan pengajar dan mahasiswa, serta infrastruktur pendidikan yang belum merata. Untuk mengatasi hal ini, penting diadakan pelatihan bagi pengajar agar mereka dapat memanfaatkan teknologi AR secara efektif. Implikasi praktis dari penelitian ini adalah memberikan wawasan baru dalam pendidikan seni berbasis teknologi, sekaligus memperkaya metode pembelajaran seni dengan cara yang mendukung pelestarian budaya lokal. Pengembangan buku ajar berbasis AR ini diharapkan tidak hanya memperkaya proses pembelajaran seni, tetapi juga menegaskan pentingnya integrasi teknologi dalam pendidikan untuk menghadapi tantangan abad ke-21.
The Effect of Tunçbilek Thermal Power Plant Waste Fly Ash on Mechanical Properties of Portland Cement
Authors: Sheikhrajab Ahman Hosseinpour , Osmanlioglu Ahmet Erdal
Published: December 2024

Cement production incorporates pozzolanic materials, with fly ash being a common waste utilized for its pozzolanic properties. Using fly ash has positive or negative effects on the cement, especially its physical and mechanical properties. In this study, the effect of substituting fly ash, a waste product from Tunçbilek thermal power plant, one of the significant Turkish power plants, instead of cement at 5%, 10%, 15%, 30%, and 50% weight on unit weight, 2-, 7-, and 28-days compressive strength, 28-day ultrasonic property, and 150-day porosity of cement has been investigated. Resultantly, compared to the Portland cement a decrease was determined in unit weight, ultrasonic property and 2-, 7- and 28-days compressive strength. Conversely, an increase was observed in porosity. According to the obtained results and the standard number EN 197-1, the compressive strength of the samples with 5%, 10% and 15% fly ash are between standard values.
Ethnobotany and Bioactive Constituents of Tabernaemontana pachysiphon Stapf (Apocynaceae) Used in Indigenous Medicine Practices in Abia State, Nigeria
Authors: Enyiukwu David Nwazuo , Amadıoha Anderson Chidi , Bassey Inemesit Ndarake
Published: December 2024

This work surveyed the ethno-botanical relevance of Tabernaemontana pachysiphon in the indigenous medicine practices of the people of Ekebedi ancient Kingdom, Abia State, Nigeria. In rural tropical localities of Africa such as the Kingdom, modern western Medicare is scarcely available, and plants over the years provide substantial part of the medicines used by the natives to treat both metabolic and pathological diseases as well as fractures amongst many other health conditions. Questionnaires and oral interviews were utilized to capture relevant data about the plant from 102 indigenous herbal doctors, traditional medicine vendors and, natives of the Kingdom and its environs. The phytochemical analysis of the test extract was conducted using GC-MS fingerprinting. The results obtained from the survey indicated that preparations of seeds, leaves, stem and root barks of the plant are used by traditional medicine men and natives of the Kingdom to treat fevers, diabetes, hypertension, stomach troubles, ringworms, malaria, gonorrhea, syphilis, venereal diseases, tumors and bouts of poison etc. GC-MS profiling identified 32 bioactive principles in the methanol leaf extract of the plant, with 9, 12-Octadecadienoic acid (Z, Z)-, methyl ester (16.35%); Octadecenoic acid, methyl ester, (E)-, (19.17%); Dodecanoic acid 1, 2, 3-propanetrieyl ester (29.69%) being the major ingredients. Amongst many others were Hexadecanoic acid, methyl ester (2.91%); Cyclopentadecanone, oxime (1.01%); Z,Z-8,10-Hexadecadien-1-ol (1.82); 9-Octadecenoic acid, 1,2,3-propanetriyl ester, E (5.86%); 9-Octadecenoic acid, 1,2,3-propanetriyl ester, (E- (1.72%); d-Mannitol, 1-O-(22-hydroxydocosyl)- (6.00); and Dodecanoic acid, 1,2,3-propanetriyl ester (6.73%). These principles may underpin the efficacy of T. pachysiphon in folk-medicine and, possibly explains the reasons for the medicinal uses of this plant by natives of the Kingdom.
Determination of the Optimum Laser Processing Parameters Required to Obtain a Stable Hydrophobic Surface on the Surface of AA1050 Aluminum Alloy
Authors: Ürgün Satılmış , Bora Mustafa Özgür , Fidan Sinan , Tosunoğlu Şeref , Canel Timur
Published: December 2024

In this study, the surfaces of sheets made of AA1050 aluminum alloy, which has high aluminum purity and also high strength, were roughened with a fiber laser. The aim of the study is to obtain a surface with a highly stable contact angle. For this purpose, it was aimed to minimize the change in the contact angle with time. Three different laser processing parameters were used. The effects of the laser parameters on the stability of the contact angle were investigated. According to the data obtained as a result of the study, the texture type created on the surface was calculated as the most effective parameter to obtain a stable surface. The rate of influence of the texture type parameter on the result is 61.61 %. The parameter with the least effect on the result was calculated as laser scanned factor with 15.31%. The parameter that moderately affected the result was calculated as laser power with 23.08%. In addition, according to the ANOVA calculations, it was suggested that a more stable surface pattern could be obtained in the experiment with different parameters.
XMM-Newton High-resolution Spectroscopy of EXO 0748–676 after Its Reemergence from a Long Quiescence
Authors: Bhattacharya Sayantan , Bhattacharyya Sudip , Shaw Gargi
Published: December 2024

EXO 0748–676 is a well-studied, high-inclination, dipping and eclipsing neutron star low-mass X-ray binary that has recently emerged from 16 yr of quiescence into a new outburst. We present results from 55.5 ks of XMM-Newton observation, focusing on high-resolution spectroscopy with the same instrument (the Reflection Grating Spectrometer) that produced significant insights during the previous outburst. The XMM-Newton European Photon Imaging Camera light curve reveals a type I X-ray burst that leads to a corresponding optical burst by 3 s. To understand the effects of the burst on the ionization structure, the data are divided into burstless and pre- and postburst spectra, with additional analysis for dip and nondip phases. The primary spectral feature in all phases is a broad O vii recombination line, accompanied by velocity-broadened O viii, N vii, and Ne ix lines. Notably, the Ne ix line shows different ionization states for the preburst (11.65 Å) and postburst (13.56 Å) phases, while the dips also substantially affect the spectral lines. The current outburst mirrors many traits from the earlier one, such as a similar spectral state, plasma components with similar ionization structure, and spectral features from the same elements, implying a stable long-term accretion behavior across outbursts.
Partial Alignment of Astrometric Position Excursions of International Celestial Reference Frame Quasars with Radio Jet Structures
Authors: Makarov Valeri V. , Cigan Phil , Gordon David , Johnson Megan C. , DiLullo Christopher , Lambert Sébastien
Published: December 2024

Published analyses of very long baseline interferometry data for the sources included in the third International Celestial Reference Frame catalog have revealed object-specific, excess astrometric variability and quasi-coherent trajectories as functions of time. A fraction of these sources show markedly elongated distributions of positions on the sky measured with diurnal observations. Here we apply a novel statistical and data-processing method to the diurnal position measurements stretching over 40 yr to quantify the degree of elongation and its position angle, for each source with more than 200 data points. We find that 49% of the examined sources have distribution elongations in excess of 1.3. Robust uncertainties of the directions of maximal astrometric dispersion are computed by the bootstrapping method, and the results are compared with a larger catalog of radio jet directions by A. V. Plavin et al. (2022). Nearly one-half of the sources with smaller position angle uncertainties are found to have astrometric position excursions from their mean positions aligned with the radio jet structures within ±30°.
Ki-67 and Histological Grade in Breast Cancer
Authors: Pirić Mirela , Jusufović Edin , Osmić Hasan , Hasukić Begzada , Sejdinović Rifat , Mosorovic Nehra , Brkić Selmira , Prnjavorac Besim
Published: December 2024

AIMS: The aim of the study was to investigate the prognostic value of Ki-67 and histological grade in patients with estrogen receptor (ER) positive and human epidermal growth factor receptor 2 (HER2) negative early breast cancer. Although the proliferation activity of different tumors assessed with antigen Ki-67 was extensively studied in the last decade and showed that Ki67 expression was a useful prognostic factor in breast cancer, there is still a controversy about the utility value of Ki-67.
METHODS: The retrospective study covered the period from 2016 to 2022. Year included 106 patients from Brcko District, with early estrogen-positive and HER2 receptors-negative breast cancer. The average patients’ age was 62.37 ± 11.65 years. Patients were divided into groups with high/low Ki-67 and high/low histological grade. Multiple linear regression analysis was performed for disease relapse and mortality.
RESULTS: Patients with high Ki-67 were more frequent postmenopausal, had higher histological grade, cancer ˂2 cm, more frequent lymph nodes’ metastases, more frequently underwent to axillary surgery, and had a higher mortality rate. Patients with high histological grade were older, more frequent postmenopausal, had more frequent metastases to the lymph nodes, more frequent occurrence of high Ki-67, more frequent relapse of disease, and more frequent of death.
CONCLUSION: Combination of high Ki-67 with high histological grade in ER positive and HER2-negative early breast cancer is an important prognostic factor.
Antimicrobial activity and mechanisms of action of Origanum vulgare L. essential oil: effects on membrane-associated properties
Authors: Moghrovyan Armenuhi , Sahakyan Naira
Published: December 2024

Historically, essential oils (Eos) have been applied in diverse ways, with modern science confirming their antimicrobial, antioxidant, anti-inflammatory, and neuroprotective properties. Origanum vulgare (oregano) is a notable source of EOs, being particularly rich in compounds like thymol, carvacrol, and β-caryophyllene, which contribute to its potent antibacterial effects. These include disruption of bacterial cell membranes, interference with quorum sensing, and inhibition of biofilm formation. Oregano EO has shown effectiveness against both antibiotic-resistant and non-resistant bacterial strains, such as Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa. The components of this EO disrupt membrane integrity, ion transport, membrane surface charge, biofilm formation, and other biophysical parameters, eventually leading to cell death. Research highlights its potential in combatting antibiotic resistance, either alone or in synergy with traditional antibiotics. Additionally, oregano EO holds promise as a natural therapeutic agent. Continued study of its complex chemical interactions will further elucidate its full potential in antimicrobial therapy. This review article presents the possible mechanisms of the antimicrobial action of oregano essential oil and its application prospects.
Cities as innovation poles in the digital transition. The Italian case
Authors: Borruso Giuseppe , Balletto Ginevra
Published: December 2024

Since the beginning of settled civilizations, cities have represented places of innovation and meeting points for flows of goods, services, people, ideas, and cultural expressions. Cities as places of interaction help to develop new ideas, solutions, and applications. If the spreading of innovation in the past appeared as a spontaneous process, nowadays it is inserted into more structured business models for enterprises and companies and in development policies at central, regional, and local levels. This also involves cities, as investing in innovation can represent opportunities for their growth. Urban geography literature, for instance, examines the urban life cycle, which has evolved into what Florida terms the "New Urban Crisis". Based on the "demographic winter" facing Italy and other industrialized countries, the present work aims to observe the most recent urban dynamics in spatial and demographic changes, innovation, and digital transitions. This research combined an analysis of innovative cities in Italy, based on the innovation index (ICity Rank) with demographic data, considering metropolitan cities and their functional urban areas (FUAs), along with a set of mid-sized cities identified as "innovative" and dynamic. Cities were ranked within the urban life cycle model, employing LISA (Local Moran's I) as a method for analysis and clustering. Using spatial analytical techniques, the work focused on the Italian urban system, its capital cities and mid-size innovative cities, considering urban dynamics in terms of population change, income, and innovation, observing their characteristics and recent evolution (2019–2023). The findings highlight the formation of urban "champions" and their characteristics in terms of ability to attract people and expertise. The results show that innovative metropolitan cities are able to maintain population levels, particularly in suburban rings, while populations in the core areas tend to decline. However, certain innovative metropolitan cities in Southern Italy maintained or increased the core population. In general, medium-sized cities present more interesting dynamics, showing either population stability or a slower rate of decline.
Density Increases in Clearcuts Restored with Fire in the Largest Remaining Population of Florida Scrub-Jays
Authors: Miller Karl E. , Shea Colin P. , Ohanyan Araks , Ragheb Erin L. Hewett , Barrett Mark A.
Published: December 2024

Managers often use mechanical disturbance in conjunction with, or in place of, prescribed fire to maintain pyrogenic plant communities in the southeastern United States. However, information on the effects of mechanical fire-surrogates on disturbance-dependent wildlife is lacking. The Florida scrub-jay Aphelocoma coerulescens is an endemic bird species reliant on Florida scrub, a pyrogenic shrubland plant community narrowly distributed on sandy ridges in peninsular Florida. Ocala National Forest in north central Florida supports the largest remaining population of Florida scrub-jays, and historically, maintenance of most scrub habitat at the site is through the commercial harvest (clearcutting) of mature sand pines Pinus clausa. Recently, a habitat restoration program established Scrub-Jay Management Areas by converting clearcut stands to scrub maintained in an early-successional condition by prescribed fire. We studied Florida scrub-jays in Scrub-Jay Management Areas (2016–2023) to better understand how family-group density changed over time since fire management compared with time since harvest in clearcut stands. In scrub treated with prescribed fire, Florida scrub-jay family-group density increased more rapidly postdisturbance and was consistently higher than in clearcut stands. Based on model predictions, the maximum mean density of family groups occurred at 8.5 y postfire (11.8 family groups/41 ha) in Scrub-Jay Management Areas and 6.2 y postharvest (5.5 family groups/41 ha) in clearcut stands. Our study provides the first quantitative data on the response of Florida scrub-jay populations to new forest management practices in this large and critically important population. These data provide an essential component for developing population models for Ocala National Forest under current conditions and for modeling the potential effects of future management decisions.
Two Reasons Why the Future of the City May Teach Us Something Key: Abstracting and Being Wise
Authors: Chiodo Simona
Published: December 2024

We may think of the city as a kind of symbol of what most characterises our era: if it is true that our era is most characterised by complexity and uncertainty, it is also true that the city may be what can most clearly show what complexity and uncertainty actually mean. Our era’s harshest lesson is precisely that, when we move from the village to the city, specifically contemporary cities becoming not only exponentially big but also exponentially interconnected, complexity and uncertainty increase as our era’s equally harsh global challenges, from climate change to pandemics to wars. Yet, contemporary cities’ global challenges may be not only harsh lessons but also unmissable opportunities. In what follows, as a philosopher, I shall work on at least two reasons why contemporary cities, specifically their future as what is likely to further increase complexity and uncertainty, may teach us something key from an epistemological perspective: first, to abstract more and, second, to be wiser, which are two epistemological capabilities that may be more crucial than ever in the future.
Aesthetics, Authenticity & City Place-Making
Authors: El Moussaoui Mustapha
Published: December 2024

Cities’ constructed environments position urban areas at the center of importance. The concept of “urban place” has mainly evolved into a marketable and branded good as a result of the advent of numerous design-led place-making policies and practices. In this effort of place-making, aesthetics play a significant role. Despite apparent conceptual ambiguities and conflicts, the interpretation of “commodified aesthetics of place” stresses specific phenomenological and qualitative place-attributes, such as authenticity. To provide clarity on this complex issue, a reexamination of core place-concepts is necessary. This article offers an understanding of urban settings and the accompanying aesthetic elements from another perspective. Such a strategy highlights the clear distinction between an object-based and a contextual interpretation of place, as well as offering a framework for reexamining the aesthetics of place and its vital role in forming the lived world. Moreover, I correlate the relation between individuals’ existential phenomena in relation to the city’s place-making theory.
Exploring the Duality of Urban Living Through the Aesthetics of the Nighttime City
Authors: Epting Shane
Published: December 2024

Research in the emerging area of the philosophy of the city has blossomed significantly in the last decade. One research strand is urban lighting, which offers several insights into how cities appear, focusing on a range of issues. This paper aims to contribute to this conversation by interrogating what it means to have a city that functions 24 hours a day. In turn, the author fleshes out the view that we can almost say that two cities exist within the exact location but opts to examine the differences between the daytime and the nighttime city instead. This process helps identify a few issues that arise when a municipality exists with such a duality at play. This paper concludes with some suggestions for dealing with these affairs.