bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Metode Pembelajaran Role Playing pada Mata Pelajaran Fiqoh Materi Shalat Berjamaah pada Siswa Kelas VII MTs Noor Iman Samarinda
Authors: Waris Abdul 
Published: April 2022

Penggunaan metode role playing berdampak positif terhadap prestasi dan motivasi belajar siswa pada materi fiqih sebelumnya, oleh karena itu untuk mengetahui sebab dampak positif dalam penerapan metode role playing pada mata pelajaran fiqih, peniliti ingin mencoba melakukan penelitian dengan metode pembelajaran role playing sebagai teknik belajar pada materi pokok Shalat berjamaah. Tujuan dari penelitian ini adalah untuk mengetahui penerapan metode pembelajaran role playing pada mata pelajaran fiqih materi Shalat Berjamaah pada siswa kelas VII MTs Noor Iman Samarinda. Metodeyang dipakai dalam penelitian ini adalah penelitian kualitatif, yaitu deskriptif kualitatif. Teknik pengumpulan datanya menggunakan teknik observasi, wawancara, dan juga dokumentasi. Teknik analisis yang digunakan adalah pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Keabsahan data dari penelitian ini menggunakan triangulasi. Hasil penelitian ini adalah penerapan metode role playing di MTs Noor Iman pada siswa kelas VII terdiri dari tiga tahapan yaitutahapan satu persiapan dan instruksi, tahapan dua tindakan dramatik dan diskusi, dan tahapan tiga evaluasi bermain peran. Tahapan satu adalah persiapan dan instruksi yang meliputi problem atau dilema guru fiqih sebelum menerapkan metode role playing, persiapan sebelum menerapkan metode role playing, dan instruksi dari guru. Tahapan dua adalah tindakan dramatik dan diskusi yang meliputi guru menetapkan pengamat, situasi yang membuat permainan peran diberhentikan sejenak, dan sikap guru ketika terdapat siswa yang tidak aktif dalam diskusi. Tahapan tiga adalah evaluasi bermain peran yang meliputi hasil pemaparan diskusi siswa, penilaiain keefektivitasan penerapan metode role playing, dan catatan guru tentang metode role playing yang telah dilaksanakan.
Adaptasi Sekolah dalam Mengimplementasikan Pembelajaran Jarak Jauh pada Masa Pandemi Covid-19 (Studi Kasus SMP Muhammadiyah Karanggeneng Kabupaten Lamongan)
Authors: Sumarno Sumarno 
Published: April 2022

Pandemi Covid-19 memberikan dampak yang signifikan terhadap berbagai sector, salah satunya adalah sector pendidikan. Hal ini menuntut pelaksanaan pendidikan dilakukan melalui jarak jauh. Namun faktanya saat ini tidak sedikit sekolah yang masih kesulitan dalam mengadakan dan melaksanakan proses pembelajaran yang update melalui pemanfaatan teknologi informasi pada proses pembelajaran. SMP Muhammadiyah Karanggeneng merupakan salah satu sekolah yang mengalami tantangan tersebut. Oleh karena itu penelitian ini dilakukan untuk mengetahui adaptasi, problematika dan upaya yang dihadapi sekolah dalam mengimplementasi pembelajaran jarak jauh selama pandemi Covid-19. Penelitian ini termasuk kedalam jenis penelitian kualitatif deskriptif. Teknik pengumpulan data dalam penelitian ini meliputi metode interview (wawancara), metode observasi dan metode dokumentasi. Hasil penelitian menunjukkan bahwa adaptasi yang dilakukan oleh sekolah SMP Muhammadiyah Karanggeneng adalah melakukan perubahan manajemen pendidikan dengan system pembelajaran jarak jauh, memaksimalkan peran kepala sekolah, waka kurikulum dan guru, melakukan interaksi secara continue dengan wali siswa dan mengoptimalkan penggunaan aplikasi WhatsApp sebagai media komunikasi dalam pembelajaran. Problematika yang muncul diantaranya masih terdapat guru yang memiliki kompetensi kurang bagus dibidang pemanfaatan teknologi informasi dalam pembelajaran, kurang fokusnya peserta didik sehingga memerlukan pemantauan orang tua dalam proses pembelajaran, tuntutan selalu tersedianya jaringan dan kuota internet baik bagi murid maupun guru. Solusi yang dilakukan diantaranya adalah melakukan seminar, workshop, penataran maupun pelatihan bagi guru yang berkaitan dengan pemanfaatan teknologi informasi dalam pembelajaran dan pembelajaran aktif, melakukan pengawasan dan pembimbingan secara bersama-sama antara guru dengan wali murid. Pihak sekolah memenuhi kebutuhan guru dalam melakukan pembelajaran berbasis internet, membentuk kesepakatan bersama dari sekolah untuk mendapatkan jaringan dan kuota internet yang bisa membantu proses pembelajaran dan menggunakan aplikasi yang lebih bervariasi dalam melakukan pembelajaran jarak jauh.
Implementasi Model Pembelajaran Examples Non Examples dalam Meningkatkan Hasil Belajar Siswa Kelas VIII-1 MTs Negeri 1 Balikpapan
Authors: Katiman Katiman 
Published: April 2022

Kondisi real yang terjadi di lapangan, terkadang minat siswa terhadap mata pelajaran IPS terbilang minim Hal ini disebabkan kelemahan yang dimiliki oleh guru pengampu mata pelajaran IPS yang kurang bisa mendesain atau mengemas materi pembelajarannya secara baik salah satunya minimnya pengetahuan guru tentang model-model pembelajaran yang sekarang sudah banyak dibuat oleh para ahli pendidikan Selain itu guru pendidikan IPS juga belum bisa melakukan manajemen kelas secara optimal mereka lebih memposisikan dirinya sebagai penyaji informasi dari buku atau guru terkesan menyampaikan apa adanya yang ada di dalam buku. Penelitian ini bertujuan untuk implementasi pembelajaran examples non examples pada materi keungulan dan keterbatasan antarruang serta peran pelaku ekonomi Kelas VII-2 di MTs Negeri 1 Balikpapan. Hasil akhir (pada siklus II) maka nilai rata-rata yang dicapai adalah 81,71 atau mengalami peningkatan sebesar 93,75%. Angka persentase ini telah melampaui standar nilai indikator capaian yaitu sebesar 75%. Hal ini berarti bahwa guru telah berhasil meningkatkan hasil belajar siswa dengan menggunakan model pembelajaran examples non examples pada pelajaran IPS materi “Keungulan dan keterbatasan dalam permintaan dan penawaran pelaku ekonomi” di MTs Negeri 1 Balikpapan.
تأثير استخدام طريقة الهدية فى ترقية الرغبة فى تعلم اللغة العربية لتلاميذ الفصل الرابع بالمدرسة الإبتدائية نور الهادي سمارندا
Authors: Narisa Narisa , Pimada Luluk Humaira 
Published: April 2022

Penelitian ini dilatar belakangi bahwa bahasa Arab mempunyai tempat yang khusus di antara bahasa dunia yang sebagaimana pentingnya bahasa hingga sampai saat ini. Dan digunakan di sekolah-sekolah khususnya di sekolah Islam seperti Madrasah Ibtidaiyyah, dan di dalam pembelajaran bahasa Arab sangat penting untuk guru menggunakan metode seperti hadiah, hukuman dan lain-lainnya, sehingga tercapainya materi pembelajaran yang diberikan oleh guru. Membuat mereka semangat dan paham dengan materi pembelajaran tanpa merasa bosan. Dan di sini penulis menggunakan untuk meningkatkan motivasi belajar siswa. Jenis penelitian ini adalah penelitian kuantitatif. Populasi dalam penelitian ini adalah seluruh siswa MI Nurul Hadi Samarinda yang berjumlah 133 mahasiswa, sampel yang digunakan adalah Purposive Sampling yang ditujukan kepada siswa kelas empat, yang berjumlah 18 siswa. Teknik pengumpulan data yang digunakan dalam penelitian ini yaitu Observasi, Angket dan Dokumentasi.Teknik analisis data menggunakan rumus Product Moment Carl Pearson. Adapun hasil penelitian ini adalah Pengaruh Metode Hadiah Terhadap Peningkatan Motivasi Belajar Bagi Siawa MI Nurul Hadi Samarinda berpengaruh, ini terbukti dengan hasil Ttest = 2,20, Ttable = 2,11 rxy = 0,48 dan jika di interpretasikan berada pada skala 0,40 s/d 0,70 yang berarti “berpengaruh”
The Use of Mobile Assisted Language Learning in English Learning of Fourth Semester English Department Students at IAIN Samarinda
Authors: Nafa Anis Hidayah 
Published: April 2022

Mobile Assisted Languge Learning, (MALL,) is a learning tool focused on language learning that used mobile phone. MALL in English learning is handy for students who in need to enhancing their English skills. Especially English department students at IAIN Samarinda, they were required to master the primary English language skill to support the learning process. The research objective was to knew students perspective toward the use of MALL in English learning, how do studnets use MALL to support their English learning activities in English and their perpective toward the advantages and disadvantages of utilizing MALL. The instrument was interview conducted by a brief introduction to the subject of the study and then selected students based on their last GPA. Based on the data finding, MALL are indeed useful and bring advantages for students. They share their experience in using MALL for English learning to facilitate, save time and energy, easy theory learning and information access, and improve motivation. However, besides the advantages MALL can provide, it also has its disadvantages. The students shared that the mobile phone is too small so that it is difficult to type, the application of online classes is not yet perfect, the source of material that cannot be trusted completely and the difficulty of internet access that requires money is limited for some students
Pengaruh Model Pembelajaran Problem Based Learning Terhadap Hasil Belajar Ilmu Pengetahuan Alam Pada Siswa Kelas IV Sekolah Dasar Islam Al-Azhar 47 Samarinda
Authors: Nurhasanah Siti , Suratman Suratman , Dahlan Dwi Nur Aini 
Published: April 2022

Penelitian ini dilatar belakangi rendahnya hasil belajar siswa yang ditandai dengan kurang interaktifnya pembelajaran yang dilakukan antara guru dan siswa. Hal ini disebabkan dari penggunaan metode konvensional. Ketika proses pembelajaran berlangsung, guru menjelaskan dengan metode ceramah dan demonstrasi sedangkan siswa mendengarkan dan mencatat konsep-konsep abstrak yang disampaikan guru, tanpa mengkritisi materi yang dijelaskan. Penggunaan model pembelajaran Problem Based Learning (PBL) yang dilakukan oleh peneliti merupakan model pembelajaran dimana siswa akan diajak untuk berfikir mendalam dengan melihat aktifitas atau materi yang dijelaskan secara langsung. Tujuan penelitian ini untuk mengetahui seberapa besar pengaruh model pembelajaran problem based learning terhadap hasil belajar siswa kelas IV SD Islam Al-Azhar 47 Samarinda. Jenis penelitin ini menggunakan metode penelitian eksperimen. Subjek populasi peneliti seluruh siswa SDI Al-Azhar dan sampel penelitian yang digunakan adalah kelas IV dengan jumlah 34 siswa. Teknik Pengumpulan data yang digunakan adalah observasi, tes dan dokumentasi. Teknik keabsahan data menggunakan uji validitas uji tingkat kesukaran soal, uji daya beda dan uji realibilitas. Teknik analisis data menggunakan uji prasyarat dan uji hipotesis. Berdasarkan uraian hasil penelitian dan pembahasan serta rumusan masalah yang peneliti buat diperoleh data mengenai penggunaan model pembelajaran problem based learning (PBL) pada pelajaran IPA. Hasil penelitian yang didapatkan diketahui bahwa nilai thitung > ttabel = 5,030 > 1,691. sehingga pengaruh penggunaan model pembelajaran problem based learning memiliki tingkat interpretasi 0,40 – 0,599 yang berarti “cukup berpengaruh” pada hasil belajar IPA. Hasil tersebut memberikan gambaran hasil uji kepada 34 responden penelitian ini antara siswa kelas IV A dan IV B. Maka disimpulkan bahwa Ho ditolak dan Ha diterima.
Investigation of Energy Properties of Briquetated Multicomponent Fuel by Thermo-Analytical Methods
Authors: Pekhota A. N. , Filatov S. A. 
Published: April 2022

The paper presents studies on saving energy resources by creating conditions and introducing modern energy-efficient technologies and equipment into production activities that allow to develop the production and use of local fuels, including the use of briquetting of combustible municipal and industrial waste. The purpose and objectives of the work are to study trends and analyze the problems associated with the processing and use of various types of combustible waste generated and accumulated in industrial and agricultural enterprises, as well as in the field of housing and communal services. The main directions of national sustainable development strategy concerning energy and resource saving and rational use of natural and secondary resources are considered in the paper. Methods for briquetting multicomponent compositions of combustible wastes with the possibility of obtaining solid fuels have been studied. An innovative production technology developed by the authors is described that makes it possible to process waste products by briquetting with the use of various binders. The results are presented and the analysis of the conducted experimental studies is carried out in accordance with the theory of experiment planning for multicomponent systems, taking into account phase equilibria. A qualitative assessment of the component composition of the briquetted fuel, which ensures the highest density of the briquette and effective performance, is carried out taking into account of the moisture content of the multicomponent mixture. Qualitative indicators of the produced two- and three-component fuels have been determined using differential thermal analysis on the MOM-1500 derivatograph, which make it possible to identify phase transformations and chemical reactions occurring during heating. Comparative analysis of qualitative indicators has permitted to draw conclusions about the possibility of using the developed fuel compositions in operated fuel combustion plants.
Evaluation of the Energy Efficiency of Industrial Furnaces Based on the Modeling of Fuel Consumption Modes
Authors: Shenets Ya. L. 
Published: April 2022

A number of industrial plants that manufacture modern products use industrial furnaces in their technology. During their operation, it is necessary to comply not only with the current legislation, but also with the norms of consumption of fuel and energy resources. The growth of tariffs for energy resources has led to a significant increase in the energy component of costs price in the structure of the cost of production. As a result, even a small (several percent) change in the cost price can bring any industrial enterprise, including the most modern ones that use gas processing equipment, into the category of unprofitable. Having referred to technical regulatory legal acts, the present article proposes an energy efficiency indicator that allows monitoring energy efficiency at existing industrial plants with industrial furnaces. The world experience of operating glass industry furnaces is considered, existing approaches to determining the energy efficiency of this technology are presented. Based on the analysis of daily indicators of the operating modes of the technological line, methods have been proposed for estimating the rate of reduction in energy efficiency of a flat glass production line and forecasting the total and specific consumption of fuel and energy resources of industrial furnaces (in terms of a continuous glass furnace). The presented methods and the numerical calculations obtained for reducing the energy efficiency of a glass furnace make it possible to predict fuel consumption and form a correct annual application for its required volume to a gas supply organization, as well as evaluate the energy efficiency of production operating an industrial furnace and calculate the energy consumption rate for the output of a unit of production. Ultimately, more accurate determining of the cost of production of a particular industrial enterprise is achieved.
Compact Passively Q-Switched Tm:KY(WO<sub>4</sub>)<sub>2</sub> Laser
Authors: Kisel V. E. 
Published: April 2022

Diode-pumped thulium lasers emitting in the spectral range near 2 μm are attractive for applications in different areas: surgery, rangefinding, and environmental atmosphere monitoring. In this article the latest results of Tm:KYW laser performance with a polycrystalline Cr:ZnSe as the most available saturable absorber for 2 μm spectral region are presented.A maximum continuous-wave output power of ≈ 0.65 W with a slope efficiency of 55 % was obtained at the wavelength of 1940 nm. Laser pulses with energy of 26 μJ and repetiotion rate of 6 kHz coresponding to 156 mW of average output power at 1910 nm were obtained at 2.2 W of incident puwp power for the Cr:ZnSe saturable absorber with initial transmission of 95 %. By using of saturable absorber with lower initial transmission of 90 % laser pulses with energy of 40 μJ and duration as short as 10 ns were realized. The maximal pulse repetition rate was 2.8 kHz at incident pump power of 2.2 W.Based on the obtained results, it can be concluded that Tm:KYW crystals are promising active media for the compact passively Q-switched lasers emitting in the spectral range near 2 μm for the usage in surgery and rangefinding. Also, described laser is planned to be used as a laser source in laser-induced damage threshold measurements setup for investigation of damage threshold of saturable absorbers as well as nonlinear crystals at the wavelength near 2 μm.
Methods for Accuracy Increasing of Solid Brittle Materials Fracture Toughness Determining
Authors: Lapitskaya V. A. , Kuznetsova T. A. , Chizhik S. A. , Warcholinski B. 
Published: April 2022

Method for determining of the fracture toughness of brittle materials by indentation is described. The critical stress intensity factor KIC quantifies the fracture toughness. Methods were developed and applied to improve the accuracy of KIC determination due to atomic force microscopy and nanoindentation. It is necessary to accurately determine parameters and dimensions of the indentations and cracks formed around them in order to determine the KIC . Instead of classical optical and scanning electron microscopy an alternative high-resolution method of atomic force microscopy was proposed as an imaging method.Three methods of visualization were compared. Two types of crack opening were considered: along the width without vertical displacement of the material and along the height without opening along the width. Due to lack of contact with the surface of the samples under study, the methods of optical and scanning electron microscopy do not detect cracks with a height opening of less than 100 nm (for optical) and less than 40–50 nm (for scanning electron microscopy). Cracks with opening in width are determined within their resolution. Optical and scanning electron microscopy cannot provide accurate visualization of the deformation area and emerging cracks when applying small loads (less than 1.0 N). The use of atomic force microscopy leads to an increase in accuracy of determining of the length of the indent diagonal up to 9.0 % and of determining of the crack length up to 100 % compared to optical microscopy and up to 67 % compared to scanning electron microscopy. The method of atomic force microscopy due to spatial three-dimensional visualization and high accuracy (XY ± 0.2 nm, Z ± 0.03 nm) expands the possibilities of using indentation with low loads.A method was proposed for accuracy increasing of KIC determination by measuring of microhardness from a nanoindenter. It was established that nanoindentation leads to an increase in the accuracy of KIC determination by 16–23 % and eliminates the formation of microcracks in the indentation.
Method for Increasing of Lens Gluing Technological Process Efficiency and a Reliable Evaluation of Output Controlled Parameters
Authors: Fiodоrtsev R. V. , Metelskaya E. A. , Marchik V. A. , Kuznetsov A. V. , Makarevich A. E. 
Published: April 2022

The use of glued lens components in optical devices improves the image quality of telescopic and photographic lenses or inverting systems by eliminating a number of aberrations, and also reduces light losses in the optical system of the device. The traditional production process of lenses gluing involves the sequential execution of a set of technological operations and takes a significant period of time. The purpose of the research was to improve the accuracy and productivity of the technological process of lenses gluing by improving the optical system of the control and measuring device and automating the operation of lenses optical axes combining by introducing an electronic reference system and mechanisms for micro-movements of optical parts.A technique is proposed for centering of two and three-component optical blocks by an autocollimation flare which provides a matching accuracy of less than 0.5 μm. The possibility of constructive modernization of the classic ST-41 autocollimation microscope with parallel separation of the displayed output information in the visual and television channels is shown. An automated system for controlling of the process of convergence of autocollimation points in the device is proposed. Using software methods an electronic grid template is formed on the monitor screen, onto which images of autocollimation points are projected. The decentering value 2Δe is determined and a corrective control voltage is applied to three stepper motors and pushers for transverse movement of the glued optical part.Specialized software has been developed for automatically bringing the position of the autocollimating crosshair to the center of the measuring scale of the grid based on a combination of two methods of “least squares” and “successive approximation”. Compliance with a number of technological transitions and the accompanying control of geometric parameters make it possible to achieve greater accuracy in determining the eccentricity of the crosshairs of the aligned optical axes of the glued lenses.
Comparison of Liver Fibrosis and Function Indices with Extracellular
Volume Using Dual-energy CT: A Retrospective Study
Authors: Kokubo Reiji , Saito Kazuhiro , Yamada Takafumi , Tanaka Taro , Tajima Yu , Suzuki Kunihito 
Published: April 2022

Background:
Dual-energy computed tomography (DECT) enables the direct measurement
of iodine accumulation in the extracellular space.

Objective:
To compare measures of liver fibrosis and function with extracellular volume (ECV) from
iodine/water images using DECT.

Methods:
Data was obtained from 119 consecutive patients who underwent abdominal DECT. A region
of interest was set in the right lobe of the liver, pancreas, spleen, and aorta on iodine density images.
ECV was calculated using the following formula: ECV = (1 − hematocrit) × [iodine concentration
in the liver (or pancreas, spleen) / iodine concentration in the aorta]. The severity of liver fibrosis
was estimated using the aminotransferase/platelet ratio index (APRI) and the Fibrosis-4 (FIB-4) index.
Liver function was assessed by the Child-Pugh classification and albumin-bilirubin (ALBI) grade. Data
were analyzed by the Spearman rank correlation coefficient, one-way analysis of variance, and post
hoc analysis.

Results:
The correlation between ECV and fibrosis indices (APRI and FIB-4) was only significant,
with a weak magnitude for liver ECV quantification at the equilibrium phase (r=0.25 and r=0.20, respectively).
The correlations between liver function index and ECV quantification were more robust
than with fibrosis index. The highest correlations (r=0.50) were found between ALBI grade and liver
ECV at the equilibrium phase. Liver ECV values at the equilibrium phase had a significant difference
between ALBI grade 1 vs. 2 and grade 1 vs. 3.

Conclusion:
Liver ECV quantification by DECT is more suitable for evaluating liver function than
liver fibrosis severity.