bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upaya Konservasi Gajah Bersama Masyarakat Sekitar Kawasan Hutan di Kabupaten Bener Meriah
Authors: Muslih Ali Muhammad , Perdana Muhammad Alsy , Ar Rasydi Ulfa Hansri , Anhar Ashabul , Farida Anna , Rosita Ida , Jamilah Maryam , Hayati Durrah , Arlita Tuti , Yanti Lola Adres , Sugara Ayub 
Published: January 2024

Hutan memiliki peran yang sangat penting bagi kehidupan flora fauna endemik, hutan dapat menjadi habitat bagi banyak kehidupan liar. Salah satunya ialah Gajah Sumatera (Elephas maximus sumatranus) yang merupakan salah satu spesies dari ordo proboscidea yang masih ditemukan. Gajah Sumatera tergolong satwa dalam status kritis (critically endangered) dalam daftar Red List yang dikeluarkan oleh IUCN (International Union for Conservation of Nature and Natural Resources). Kegitan upaya konservasi gajah Bersama masyarakat dilakukan di Kabupaten Bener Meriah mulai bulan Februari 2023, dengan tujuan dapat dijadikan acuan dalam pengambilan keputusan dan solusi terkait penanganan terhadap gajah dan mengurangi terjadinya konflik antara masyarakat dengan gajah. Pengumpulan data dilakukan dengan wawancara dan diperkuat dengan studi pustaka. Hasil dari kegiatan menunjukkan bahwa ada beberapa upaya yang dapat dilakukan seperti mengetahui ancaman bagi spesies gajah, melakukan upaya konservasi gajah, upaya pelestarian gajah (membangun kawasan lindung, sosialisasi kepada masyarkat, melakukan penangkaran gajah) dan upaya perlindungan gajah (Penggiringan gajah, pembuatan parit dan kawat kejut, pemasangan GPS Collar).
Peran KH. Zainuddin Usman dalam Pengembangan Ponpes Al-Fattah Lampung 1986-2008
Authors: Putri Riska Iriana , Iryana Wahyu , Hasanah Uswatun 
Published: January 2024

Pesantren merupakan sebuah asrama yang didalamnya terdapat santri yang menuntut ilmu agama. Selain Pendidikan pesantren memiliki misi dakwah serta membentuk kepribadian santrinya. Dalam pesantren terdapat Kyai yang memiliki peran dalam pengembangan. Penelitian ini mengkaji peran KH. Zainuddin Usman dalam mengembangkan pondok pesantren Al-Fattah Mincang Talang Padang yang bertempat di Kabupaten Tanggamus tahun 1986-2008. Penelitian ini menggunakan menggunakan metode penelitian sejarah yang meliputi heuristik, kritik, interpretasi, dan historiografi. Untuk menganalisis terkait penelitian ini peneliti menggunakan teori peran dan Teori kepemimpinan. Teori ini digunakan untuk mengetahui peran kepemimpinan KH. Zainuddin Usman dalam memegang kendali dan keputusan dalam mngembangkanPondok Pesantren Al-Fattah. Hasil penelitian ini diketahui peran KH. Zainuddin Usman melalui biografi dan perjalanan hidup yang Ia jalani. Tidak diragukan lagi bahwa KH.Zainuddin Usman merupakan ulama yang penuh semangat dalam menuntut ilmu dan berdakwah. Ia lahir di Demak dengan latar belakang keluarga yang sederhana, bapaknya seorang kepala desa dan ibunya seorang pedagang ikan asin di pasar. Sejak sekolah dasar ia mempunyai prestasi akademik yang gemilang. Ia juga aktif organisasi ia juga aktif organisasi dan beliau menjadi ketua MUI kabupaten Tanggamus. Ia berhasil menyusun strategi pendidikan santri dengan pendidikan yang yang bermutu dan membagi menjadi beberapa focus program yang diambil dan menambah pengetahuan soft skill.
KELAYAKAN DAN KEPRAKTISAN E-MODUL BERBASIS INKUIRI TERSTRUKTUR DAN TERINTEGRASI SETS (SCIENCE, ENVIRONMENT, TECHNOLOGY, AND SOCIETY) PADA MATERI FLUIDA DINAMIS DI KELAS XI SMA
Authors: Keren Goni Febriani Putri , Panggabean Deo Demonta 
Published: January 2024

Penelitian ini bertujuan untuk mengetahui tingkat kelayakan dan kepraktisan e-modul berbasis inkuiri terstruktur terintegrasi SETS (Science, Environment, Technology, and Society) pada materi fluida dinamis di kelas XI SMA. Penelitian ini menggunakan jenis Research & Development (R&D) dengan model Borg & Gall, serta menggunakan pendekatan mixed method. E-modul dirancang dengan menggunakan aplikasi online Heyzine. Berdasarkan hasil penelitian, e-modul fisika dinyatakan valid menurut ahli materi dengan persentase 98,63% dan ahli media dengan persentase 99%. E-modul fisika dinyatakan sangat praktis berdasarkan uji coba lapangan terbatas pada siswa skala kecil (96,08%) dan respon guru fisika (97,59%). Pada uji coba lapangan besar terhadap siswa skala besar, diperoleh bahwa e-modul sangat praktis dengan persentase 96,56%. Dengan demikian, e-modul fisika berbasis inkuiri terstruktur terintegrasi SETS dinyatakan layak dan sangat praktis untuk dapat digunakan dalam proses belajar mandiri siswa, sehingga potensial meningkatkan pemahaman siswa terhadap materi fluida dinamis. Kata Kunci: E-modul, fluida dinamis, inkuiri terstruktur, SETS
Kelayakan E-Modul Fisika Berbantuan Flippingbook Berbasis Website Dan Aplikasi Android Materi Usaha dan Energi
Authors: Pasaribu Ruth Ramayani 
Published: January 2024

Penelitian ini bertujuan untuk mengetahui kelayakan e-modul fisika menggunakan flippingbook berbasis website dan aplikasi android berdasarkan hasil validasi ahli dan hasil uji coba e-modul. Metode yang digunakan dalam penelitian ialah pengembangan (R&D) menggunakan model ADDIE. Subjek uji kelayakan e-modul ialah dosen ahli materi, ahli media, ahli desain pembelajaran, serta guru fisika. Uji coba dilakukan di kelas XI MIA 1 dan 2 SMAS Kristen Kalam Kudus Medan. Teknik analisis data yang digunakan ialah persentase. Dari hasil penelitian e-modul fisika berbantuan flippingbook berbasis website dan aplikasi android pada materi usaha dan energi diperoleh persentase hasil kelayakan e-modul oleh ahli media 96,6%, ahli materi 97,5%, serta penilaian guru fisika 92,52% termasuk dalam kategori sangat layak. Respon peserta didik sebesar 92,66% kriteria sangat praktis. Pada hasil uji coba peserta didik melakukan pretes dan postes sehingga mendapatkan nilai N-Gain sebesar 0,718 kategori efektif. Dapat disimpulkan e-modul fisika menggunakan flippingbook berbasis website dan aplikasi android sangat layak digunakan dalam pembelajaran.
Effect of feed type on biology and nutritional indices of black soldier fly, Hermetia illucens L. (Diptera: Stratiomyidae)
Authors: Irsyad Andika Muhammad , Dono Danar , Puspasari Lindung Tri 
Published: January 2024

Hermetia illucens L. (Black Soldier Fly) larvae are used as a source of high protein for animal feed, in cultivation they must produce larvae with fast growth and development in large numbers as well as imago with a high reproductive rate. The success factor from the type of feed given, because it can affect the growth and development of the larvae. The research to find a better type of feed for the growth and development of larvae. The research conducted from March 2022 to February 2023 at the Pesticide and Environmental Toxicology Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran. The experiment used a completely randomized design with 4 treatments and 5 replications. The treatment used grain bran feed, rice bran with kale, bran with banana stems, and bran with chicken manure compost. The results showed that the type of grain bran feed with chicken manure compost produced better scores on net reproduction rate (2210.85 females/mother/generation), intrinsic rate of increase (46.43%), population doubling (3.6 days), proportion of live individuals (0.84 individuals), number of eggs (528.8 eggs), average weight (6.534 g), consumption rate (0.0112 g/day), relative consumption rate (0.0104 g/day), growth rate (…0,0123 g/day..), relative growth rate (0,0115 g/g/day), digestibility (3.1940%), efficiency conversion of food consumed (2.0033%), and efficiency consumption of digested food (2,2029%) with increase respectively 4.58 times, 9.63 times, 4.61 times, 2.1 times, 2.27 times, 3.11 times, 2 times, 2.03 times, 1.14 times, 1.16 times, 2.88 times, 1.98 times, and 3.10 times compared to rice bran feed.
Pengembangan LKPD Berbasis Problem Solving Bermuatan Ethnomatematika Terhadap Kemampuan Pemecahan Masalah Siswa
Authors: Pernanda Restiana , Darma Yudi , Irvandi Wandra 
Published: January 2024

Tujuan penelitian ini adalah untuk mengembangkan LKPD berbasis Problem Solving bermuatan etnomatematika terhadap kemampuan pemecahan masalah siswa yang dilihat dari tingkat kevalidan, kepraktisan, dan keefektifan. penelitian ini menggunakan metode penelitian dan penegmbangan atau Research and Development dengan rancangan penelitian Borg and Gall. Penelitian ini dilakukan di SMP Negeri 5 Tanah Pinoh, Melawi, Kalimantan Barat dengan subjek penelitian 16 siswa kelas VIII. Instrumen yang digunakan berupa lembar validasi media dan materi, angket respon guru dan siswa, serta lembar posttest kemampuan pemecahan masalah matematis. Dari hasil penelitian yang dilakukan dapat disimpulkan bahwa LKPD yang dikembangkan layak untuk digunakan dalam pembelajaran dengan tingkat kevalidan dengan kategori sangat valid dengan kevalidan media mencapai 86% dan kevalidan materi mencapai 84%, tingkat kepraktisan dengan kriteria sangat praktis ditunjukan dengan angket respon siswa yang mencapai nilai 95 % dan angket respon yang diberikan guru mencapai nilai 96%, tingkat keefektifan dengan kriteria efektif berdasarkan nilai ketuntasan yang ditentukan sekolah. Hasil tes menunjukan rata-rata siswa mendapatkan nilai 82,5.
Hakikat Belajar dalam Perspektif Anwar Muhammad al-Syarqawi
Authors: Ghufron Imam Fayyadil , Baitiyah Baitiyah 
Published: January 2024

kajian ini bertujuan untuk membahas hakikat belajar dalam perspektif Anwar Muhammad al-Syarqawi. Belajar suatu proses perubahan semi-permanen dalam prilaku individu yang tidak bisa diamati secara langsung, tetapi dapat disimpulkan dari prilaku individu yang tampak setelah belajar itu sendiri. Ada beberapa persamaan dan perbedaan terkait hakikat belajar yang ditawarkan oleh Anwar Muhamma d al-Syarqawi dengan tokoh-tokoh yang lain. Persamaannya yaitu; (a) Belajar yaitu suatu proses yang mengakibatkan perubahan yang terjadi terhadap perilaku individu, (b) Belajar itu merupakan proses penyaluran ilmu terhadap individu yang dilakukan dalam keadaan sadar. Adapun perbedaannya yaitu; (a) Menurut Anwar Muhammad al-Syarqawi belajar itu merupakan proses perubahan yang terjadi terhadap individu yang tidak bisa diamati secara langsung, Sedangkan tokoh-tokoh yang lain mendefinisikan sebaliknya bahwasanya belajar sendiri yaitu suatu proses perubahan yang terjadi terhadap individu yang bisa diamati secara langsung oleh orang lain.
The Variational Iteration Method for a Pendulum with a Combined Translational and Rotational System
Authors: Amir Muhammad , Ashraf Asifa , Haider Jamil Abbas 
Published: January 2024

Abstract
The dynamic analysis of complex mechanical systems often requires the application of advanced mathematical techniques. In this study, we present a variation iteration-based solution for a pendulum system coupled with a rolling wheel, forming a combined translational and rotational system. Furthermore, the Lagrange multiplier is calculated using the Elzaki transform. The system under investigation consists of a pendulum attached to a wheel that rolls without slipping on a horizontal surface. The coupled motion of the pendulum and the rolling wheel creates a complex system with both translational and rotational degrees of freedom. To solve the governing equations of motion, we employ the variation iteration method, a powerful numerical technique that combines the advantages of both variational principles and iteration schemes. The Lagrange multiplier plays a crucial role in incorporating the constraints of the system into the equations of motion. In this study, we determine the Lagrange multiplier using the Elzaki transform, which provides an effective means to calculate Lagrange multipliers for constrained mechanical systems. The proposed solution technique is applied to analyse the dynamics of a pendulum with a rolling wheel system. The effects of various system parameters, such as the pendulum length, wheel radius and initial conditions, are investigated to understand their influence on the system dynamics. The results demonstrate the effectiveness of the variation iteration method combined with the Elzaki transform in capturing the complex behaviour of a combined translational and rotational system. The proposed approach serves as a valuable tool for analysing and understanding the dynamics of similar mechanical systems encountered in various engineering applications.
Thermal and Visualisation Study of the HFE7100 Refrigerant Condensation Process
Authors: Bohdal Tadeusz , Sikora Małgorzata , Formela Karolina 
Published: January 2024

Abstract
Technological advances are contributing to the search for highly efficient energy designs, and increasing interest in compact heat exchangers. Indeed, small channel diameters determine large heat transfer coefficients and condition a significant heat transfer area about the overall volume of the heat exchanger, as well as a smaller amount of refrigerant flowing in the system. Nevertheless, the operating stability and energy efficiency of compact heat exchangers are influenced by two-phase flow structures, which depend on thermal flow parameters. Knowledge of the structures formed during the condensation process is therefore essential for optimising the operation of refrigeration and air-conditioning equipment. This article presents the results from experimental studies of the HFE7100 refrigerant, from the hydrofluorocarbon group, condensation process in mini-channels with hydraulic diameters dh = 2.0 mm, 1.2 mm, 0.8 mm and 0.5 mm. Thermal flow characteristics were determined, and the forming structures of two-phase flow were recorded. The results of visualisation were subjected to morphological image analysis, based on a special algorithm written in MATLAB software. The algorithm makes it possible to determine the void fraction, which is necessary for calculating the vapour quality, as well as the area of vapour bubbles and their number, directionality and length along the x- and y-axes.
Multiple traumatised upper incisors in children treated by autotransplantation and orthodontics — a 4-year follow-up
Authors: Koo Chieh Shen , Chan Boon Hui , Yee Ruixiang 
Published: January 2024

Abstract

Objective
To present two young patients treated by the autotransplantation of developing premolars and subsequent orthodontic space closure and to report a 4-year follow-up result.

Case and method
Two 11-year-old patients suffered traumatic anterior dental injuries resulting in ankylosis and subsequent extractions. After consulting the multidisciplinary team, the developing lower second permanent premolars with immature root apices were chosen to replace the injured upper incisors using autotransplantation.

Results
Six months after autotransplantation, orthodontic treatment was initiated to close the upper arch spaces, correct the dental midline deviation and to camouflage the transplanted teeth. Normal overbite and overjet were achieved and Class I canine and molar relationships were obtained. After the removal of the orthodontic appliances, composite resin restorations were placed on the upper anterior teeth. During a 4-year follow-up, the pulp vitality of the transplanted teeth was normal with no periodontal nor pathological findings. Pulp canal obliteration with adequate apical length was observed in all the teeth.

Conclusion
In children presenting with upper incisors lost to trauma, autotransplantation of developing lower premolars into the upper anterior region followed by orthodontic space closure can be a viable treatment modality producing satisfactory aesthetics and function.
Symmetrical Piecewise Linear Functions Composed by Absolute Value Function
Authors: Mitsuishi Takashi 
Published: January 2024

Summary
We continue the formal development of the application of piecewise linear functions and centroids in the area of fuzzy set theory. The corresponding piecewise linear functions are symmetrical and composed by absolute function. In this paper we prove that the membership functions of isosceles triangle type and isosceles trapezoid type can be constructed by functions of this type.
Optimised technology for repair of vertical surface of concrete bridge elements
Authors: Skazlić Marijan , Borovina Berislav , Gabrijel Ivan 
Published: January 2024

Abstract
A large number of concrete bridges need to be repaired due to durability problems. This research focuses on evaluating the bond quality of the repair material, which has the highest influence on the durability of the repair. Onsite experimental research is performed on the vertical surfaces of the column of the Klara Jug bridge, which is located in the southern part of the Zagreb. Since the experimental research is carried out in parallel with the ongoing repair works on other bridge elements, the experimental conditions correspond to the real construction site conditions. Simulation of the actual site rehabilitation process was carried out on the test fields, which included removal of the damaged concrete by hydrodemolition at a depth of 1.5–2 cm, washing of the concrete by roto nozzle and wet spraying of the repair mortar. The results of the pull-off tensile bond strength show that there is an optimum period for spraying of repair mortar after washing the concrete surface. Optimal time for application of mortar is 90 min after completion of washing of the vertical concrete surface by the roto nozzle. In other weather conditions, the application time depends on the expected evaporation of water from the surface. The tensile strength of the bond between concrete and the repair mortar is 62% lower if the concrete is not washed by the roto nozzle prior to the application of the repair mortar. This investigation can serve as a practical guide for the repair of vertical surface of concrete elements of bridges, overpasses and viaducts.
The role of competency-based certification in ensuring sustainable project delivery
Authors: Rastovski Tomislav , Vlahov Golomejic Rebeka D. , Vukomanovic Mladen 
Published: January 2024

Abstract
An increasing number of organisations are basing their operations on temporary forms of work such as projects to cope with the needs of the modern business environment, which consequently leads to a significant growth in the demand for competent individuals who can not only adequately manage projects, but also seize the opportunities that this new way of doing business brings in the creation of strategic value for organisations. To be considered competent in the field, individuals should therefore demonstrate a certain level of knowledge, skills and abilities that are assessed, developed or improved through certification systems. Although professional certification was previously driven exclusively by the aspirations of individuals for improvement in a business context, to ensure a more professional project practice, the conditions for performing this type of work are starting to be more formalised at the level of employers (requirements in job advertisements) or the state (regulation of certification bodies or legally prescribed requirements for project positions). With the aim of examining the attitude of project professionals towards the competency-based certification in the field of project management and its legal regulations, as well as its role in ensuring the sustainable project delivery, quantitative empirical research was conducted among 246 certified project, programme and portfolio managers in Croatia. The obtained results not only indicate the importance of certification in project delivery and continuous professional development of individuals, but also emphasise insufficient recognition of certification within organisations, its connection with career progress and compliance of practices at the state level.
Impact of Takt-Time Planning on Plastering Work Productivity: A Case Study
Authors: Kozlovská Mária , Kempecova Daria 
Published: January 2024

Abstract
This article aims to analyze productivity issues during the implementation of plastering works on the case study of a residential complex. The results of the study revealed that establishing a proper work schedule and adhering to the Takt schedule resulted in a 19% increase in plastering productivity compared to non-Takt schedules. Furthermore, the study identified the existence of waste, which had a negative impact on the progress of the plastering work and could have been prevented through better project planning during the initial project phases.
Optimization of a Self-Compacting Paste Based on Glass Powder Using Mixture Design and the Desirability Function
Authors: Boulkhiout Messaouda Ch. , Amdoun Ryad , Benyoussef El Hadi , Bali Abderrahim 
Published: January 2024

Abstract
The partial replacement of cement by supplementary cementitious materials is an opportunity for reducing fossil energy consumption and greenhouse gas emissions. In this study, forty (40) pastes were formulated by applying a 4-factor mixture plan, consisting of cement, glass powder (GP), superplasticizer and water. Third order models “special cubic” established for the flow time, spreading diameter, and flow velocity, responses were statistically significant. The analysis of the models allowed the study of the individual and combined effects of the different factors, highlighting the predominant effect of the superplasticizer on the dispersion GP fines. The multi-criteria optimization allowed the development of two optimal pastes SCP1 and SCP2 incorporating 25 and 7% GP, respectively. SCP1 was chosen because at this GP amount, unlike at 28 days, the paste presents the best strengths at 90 days with 4.5% increase for flexural tensile strength and 15.69% increase for compressive strength while maintaining satisfactory workability.
Improvement of Productivity in Buildings Construction
Authors: Dehchar Chemseddine , Boudjellal Khaled , Bouabaz Mohamed 
Published: January 2024

Abstract
Improving productivity in construction projects has long been a major concern, and much research has been carried out to try to ameliorate construction productivity. To this end, this study aims to improve and increase the productivity rate of flat slab formwork used in residential construction projects. A survey consisting of 150 questionnaires was undertaken to identify the factors that influence on the productivity. Based on the relative Importance Index (RII), data on eleven factors deemed to affect productivity were selected. A collection of 100 data points from various sites were utilized to develop two models. Firstly, an Artificial Neural Network (ANN) model was employed, and secondly, a parametric approach was investigated. The data were divided into two sets, with 70% of the data used for training and the remaining 30% used for testing. The models’ performance was evaluated using the Mean Squared Error (MSE) and Mean Absolute Percentage Error (MAPE) values. In the test phase, the artificial neural network model yielded an MSE value of 2.6610e−4 and a MAPE value of 4.9227, whereas the parametric model produced an MSE of 0.040 and a MAPE of 9.525. It was found that the artificial neural network model provided reliable prediction accuracy compared to the parametric model. However, the artificial neural network approach can be selected as a robust model in predicting and controlling the productivity rate in local construction projects by using the developed model based on the identified factors.