bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ore Characteristics and Fluid Inclusion of the Base Metal Vein Deposit in Moncong Bincanai Area, Gowa, South Sulawesi, Indonesia
Authors: Asmariyadi Asmariyadi , Langkoke R. , Maulana A. , Nur I. , AstamAn W. 
Published: March 2024

DOI: 10.17014/ijog.v7i4.146This paper is dealing with ore characteristics and fluid inclusion of the Moncong Bincanai, Biringbulu Subregency of Gowa Regency, South Sulawesi Province, Indonesia. The mineralization is a vein type, with the orientation of N170oE /65oSW, hosted in open-space filling within basalt. The mineralization consists of galena, sphalerite, chalcopyrite, and pyrite. Vein thickness ranges from 5 - 17 cm, showing a crustiform banding texture, with a sequence from outer to centre: quartz, carbonate (siderite), sulphide. The quartz displays primary growth textures such as comb, crystalline, saccharoidal, and colloform. Analytical methods applied include AAS and fluid inclusion microthermometry. Chemical composition of the vein indicates an average of Pb = 47.92%, Cu = 1.27%, Zn = 1.02%, and Fe = 9.46%, which shows a significant concentration of Pb. Fluid inclusion microthermometry results indicate a range of formation temperature of 240 - 250C and salinity of the responsible hydrothermal fluid of 2.1 - 2.5 wt.% NaCl eq. The deposit is categorized into low-sulfidation epithermal deposits, which was formed within a range of 410 - 440 m below paleosurface.
Characteristic of Lokon Volcano Deformation of 2009 - 2011 Based on GPS Data
Authors: Kriswati Estu , Meilano I. , Suhartaman Suhartaman , Suparman Y. , Abidin H. Z. , Sinaga Tumpal 
Published: March 2024

DOI: 10.17014/ijog.v7i4.147Precursor of Lokon Volcano eruptions in 2011 is believed to begin since December 2007 which was marked by increasing number of volcanic earthquakes and gas emission. To support this information, deformation method is used primarily to determine deformation characteristics of Lokon volcanic activity in the period of 2009-2011. The period of analysis is adapted to the presence of GPS data. Displacement rate of Lokon GPS observation points in the period of 2009 - 2011 ranged from 1.1 to 7 cm a year. Strain patterns that occur in the areas are compression surrounding Tompaluan crater and extension in the eastern slope. Location of the pressure source for August 2009 - March 2011 measurement was at a depth of 1800 m beneath Tompaluan crater. Deformation in the Lokon Volcano is characteristized by the compression zone in the summit and crater area caused by magma activity raised into the surface from a shallow magma source which is accompanied by a high release of volcanic gases. Accumulated pressure release and deformation rate as measured in the Lokon Volcano remain low.
Interstratified Illite/Montmorillonite in Kamojang Geothermal Field, Indonesia
Authors: Yudiantoro D. F. , Suparka E. , Yuwono S. , Takashima I. , Ishiyama D. , Kamah Y. , Hutabarat J. 
Published: March 2024

DOI: 10.17014/ijog.v8i4.167Kamojang geothermal field located in West Java Province, falls under the Pangkalan Subregency, Bandung Regency. The researched area is a geothermal field located in the Quaternary volcanic caldera system of about 0.452 to 1.2 Ma. The volcanic activity generated hydrothermal fluids, interacting with rocks producing mineral alteration. The minerals formed in the areas of research are interstratified illite/montmorillonite (I/M). Analyses to identify interstratified I/M have been performed by X-ray diffraction using ethylene glycol, while the determination of the type and percentage of interstratified I/M was based on the calculation method of Watanabe. The methodology was applied on core and cutting samples from Wells KMJ-8, 9, 11, 13, 16, 23, 49, 51, and 54. The result of analysis of the samples shows that the type of clay is interstratified illite/montmorillonite and the minerals are formed at temperatures ranging from 180 to 220° C. The type of interstratified I/M in the studied area is S = 0 and S = 1. The percentage of illite type S = 0 is between 20 - 35% illite, whereas type S = 1 has about 45 - 72% illite. Along with the increasing depth, the percentage of illite is getting greater. This is consistent with the vertical distribution of temperature which increases according to the depth. This correlation results in an interpretation that the upflow zone of the geothermal reservoir is located in the centre of the Kamojang geothermal field.
Stratigraphy and Tectonics of the East Ketungau Basin, West Kalimantan during Palaeogene
Authors: Suyono Suyono 
Published: March 2024

DOI: 10.17014/ijog.v8i4.170East Ketungau Basin is one of frontier basins in Indonesia. Some of these basins, especially those in eastern Indonesia, have been identified to possess potential of oil and gas. The existing publications of geological fieldworks and extensive exploration in the East Ketungau Basin are limited. The detailed sedimentological and biostratigraphical studies of the sedimentary succession will be used to reconstruct the tectonic and palaeogeographical history of the basin. The sedimentary Mandai Group consists of three facies such as mudstone facies, clean sand facies and alternation between thinly coal seam, coaly shale, and claystone facies. However, each facies characterizes depositional environment of barrier- island and associated strand-plain systems.
An analysis of indices and ratios in anthropometric body measurements among team sports athletes
Authors: Rahman M. Hamidur , Sharma J. P. 
Published: March 2024

Background: Physical indices and proportions based on anthropometry are crucial for determining the performance of players in team sports. The study aims to analyze the anthropometric status, body mass and shape indices, including waist-to-hip and height ratios, among athletes from different team sports.
Methods: Study involved 135 male team-sport athletes specializing in basketball, handball, and volleyball, with 45 players in each sport. Researchers collected anthropometric data, including chronological age (CA), height (Ht), weight (Wt), body mass index (BMI), waist circumferences (WC) and hip circumferences (HC), waist-hip ratio (WHR), waist-height ratio (WHtR), and a body shape index (ABSI). To compare variables across groups, descriptive statistics and one-way ANOVA with LSD post-hoc tests used. Relationships within each group were examined using correlation analysis.
Results: The ANOVA findings indicated f values (2, 132) for CA at 0.57, p=0.57, BMI at 0.59, p=0.56, WC at 2.10, p=0.13, WHR at 1.37, p=0.27, and ABSI at 1.41, p=0.25, respectively, revealing no significant disparities among the groups. Conversely, Ht at 13.36, p=0.00, Wt at 5.74, p=0.00, HC at 6.33, p=0.00, and WHtR at 3.60, p=0.03, respectively, highlighted significant variations between the groups. Furthermore, the correlation of BMI, WC, HC, WHR, WHtR, and ABSI in each group showed a strong positive correlation (p<0.01).
Conclusions: Athletes in team sports were found to have similar body mass and shape indices, including ratios for WHR, while the WHtR ratio showed significant variations among the groups. Despite these differences, measures of athletes’ health metrics across these sports remain within safe, normal ranges.
High volume stentolith in a case of neglected CBD stent: A case report
Authors: Anandh SM  , Raju Karthikeyan , kumar Senthil , Harikrishnan Archana , Palanigoundar Raju , Babu Ganesh 
Published: March 2024

Endoscopic retrograde cholangiopancreatography (ERCP) with endoscopic sphincterotomy (EST) and stone extraction is widely accepted as the treatment of choice for a patient of any age with choledocholithiasis. : It describes as a forgotten stent post ERCP which acts as nidus for stone formation. Stents has to be removed within 6 weeks. Longer periods of unattended stents leads to wide range of complications like cholangitis, pancreatitis, biliary stricture and biliary cirrhosis. Management involves either endoscopic retrieval of stents or surgical exploration.
ANALISIS KEMAMPUAN DAN KESULITAN SISWA SMP DALAM MENYELESAIKAN SOAL BILANGAN MODEL TIMSS
Authors: Budi Prasetyo Dominikus Arif , Rudhito Marcellinus Andy 
Published: March 2024

Bilangan adalah konsep penting dalam matematika dan merupakan salah satu materi yang diujikan dalam studi TIMSS. Salah satu upaya untuk meningkatkan kemampuan siswa dalam menjawab soal bilangan TIMSS ada-lah dengan mengembangkan soal bilangan model TIMSS. Penelitian ini menyelidiki kemampuan dan kesulitan siswa dalam menjawab soal bilangan model TIMSS dengan 31 siswa di salah satu SMP di Jawa Tengah seba-gai sampel. Kemampuan siswa dalam menyelesaikan soal bilangan model TIMSS diukur melalui tes dengan 32 soal pilihan majemuk, sedangkan kesulitan yang dialami siswa ketika mengerjakan soal tes digali melalui lembar komentar siswa. Rerata nilai tes menunjukkan bahwa kemampuan siswa untuk semua ranah konten dan kognitif tergolong sedang. Kesulitan yang dialami siswa dalam menjawab soal bilangan model TIMSS mi-salnya tidak memahami maksud soal maupun kesalahan dalam mengubah bentuk pecahan dan melakukan per-hitungan. Hasil mengindikasikan bahwa selain belum memiliki pemahaman yang mendalam tentang materi bi-langan, siswa juga belum memiliki kesempatan yang memadai untuk melatih kemampuan dalam menjawab so-al model TIMSS.ABSTRACT Numbers is an important concept in mathematics and one of the tested materials in TIMSS’s study. One of the efforts to increase students’ ability in solving TIMSS numbers questions is by developing TIMSS model-num-bers questions. This current research investigated students’ ability and difficulties in solving TIMSS model-numbers questions, with 31 students in one of junior high schools in Central Java as a sample. Students’ ability in solving TIMSS model-numbers questions was measured by test with 32 multiple choice questions, whereas students’ difficulties when solving those questions were explored by students’ comment sheet. Mean test score indicates that students' ability for all content and cognitive domains was moderate. Difficulties experienced by students in solving TIMSS model-numbers questions were misunderstood the meaning of the questions or er-ror in changing fractional forms and making calculations. The results indicated that in addition to having no deep understanding of numbers, students’ opportunity to train their ability in solving TIMSS model-numbers questions was still insufficient.How to cite: Prasetyo, D.A.B., Rudhito, M.A. (2016). Analisis Kemampuan dan Kesulitan Siswa SMP da-lam Menyelesaikan Soal Bilangan Model TIMSS, Jurnal Pengajaran MIPA, 21(2), 122-128.
PENGEMBANGAN MODEL PEMBELAJARAN AKTIF BERBASIS INKUIRI UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS MAHASISWA CALON GURU
Authors: Prayogi Saiful , Muhali Muhali , Sri Putu Verawati Ni Nyoman , Asy’ari Muhammad 
Published: March 2024

Peran penting guru dalam proses belajar mengajar dan tuntutan abad 21 mendorong program pendidikan calon guru untuk memastikan bahwa seorang calon guru akan dapat melatihkan keterampilan berpikir kritis kepada para siswanya kelak karena keterampilan berpikir kritis adalah keterampilan penting yang dibutuhkan oleh pe-belajar masa depan. Kami mengembangkan model Pembelajaran Aktif Berbasis Inkuiri (ABI) yang diim-plementasikan kepada 34 mahasiswa calon guru fisika di salah satu Lembaga Pendidikan Tenaga Kepen-didikan (LPTK) di Indonesia. Model pembelajaran yang diimplementasikan terbukti dapat meningkatkan ke-terampilan berpikir kritis dan menurunkan jumlah mahasiswa calon guru yang sebelumnya dikategorikan ku-rang kritis. Secara keseluruhan, peningkatan keterampilan berpikir kritis setelah implementasi model pembel-ajaran ABI dikategorikan sedang. Dapat kami simpulkan bahwa sampai taraf tertentu, model pembelajaran ABI yang dikembangkan dapat meningkatkan keterampilan berpikir kritis mahasiswa calon guru fisika.ABSTRACT Teachers’ role in teaching and learning processes as well as 21 century’s demands, prompted pre-service teachers’ education program to ensure that pre-service teachers will be able to train critical thinking skills to their respective students as critical thinking is an important skill needed by future learners. We developed Inquiry-Based Active Learning Model (ABI) which was implemented to 34 Physics pre-service teachers in one of Teacher Training Institution (LPTK) in Indonesia. The implemented learning model was able to increase critical thinking skills and decreased the number of pre-service teachers previously categorized in a less critical category. In overall, critical thinking skills enhancement after the implementation of ABI learning model is categorized as moderate. We concluded that to some extent, the developed ABI learning model en-hanced physics pre-service teachers’ critical thinking skills.How to cite: Prayogi, S., Muhali, Verawati, N. N. S. P., Asy’ari, M. (2016). Pengembangan Model Pem-belajaran Aktif Berbasis Inkuiri Untuk Meningkatkan Keterampilan Berpikir Kritis Mahasiswa Calon Guru, Jurnal Pengajaran MIPA, 21(2), 148-153.
THE EFFECT OF MULTIREPRESENTATION DISCOURSE LEARNING ON STUDENTS PROBLEM SOLVING ABILITY
Authors: Herman Tatang , Artinah Tetin , Usdiyana Dian 
Published: March 2024

Solving mathematical problem for most secondary students was still a very difficult job, particularly in understanding the problem and assigning mathematical models. This research attempted to overcome the lack of mathematical problem solving skills of students by using Multi Representation Discourse model (DMR). The purpose of this research was to improve mathematical problem solving skills of junior high school students by implementing DMR model. The method of the research was quasi experiment method with control group pretest-posttest. The population of this research was 7th grade students the one of junior high school in Bandung city. From this research, the researcher randomly took two classes as sample. Instrument of this research was test for measuring the mathematical problem solving skills and a questionnaire and form observation for describing students’ respons. The result of this research shows that mathematical problem solving skills of students who got DMR learning model is higher than that of students who got direct instruction learning. Also students show positive responses enthusiastic, excited, fun and self-confident in learning mathematics.AbstrakMenyelesaikan soal pemecahan masalah matematika bagi kebanyakan siswa SMP merupakan pekerjaan yang sulit, terutama dalam memahami masalah dan menyusun model matematika. Penelitian ini dilakukan untuk mengatasi rendahnya kemampuan pemecahan masalah matematis menggunakan model pembelajaran Diskursus Multirepresentasi (DMR). Fokus utama penelitian ini adalah mengungkap apakah peningkatan model pembelajaran DMR dapat mengatasi kesulitan siswa dalam menyelesaikan soal pemecahan masalah matematika siswa SMP kelas VII. Metode penelitian yang digunakan dalam penelitian ini adalah metode kuasi eksperimen dengan desain kelompok kontrol pretes-postes. Populasi dalam penelitian ini adalah seluruh siswa kelas VII salah satu SMPN di Kota Bandung dengan dipilih sampel dua kelas VII. Instrumen dalam penelitian ini adalah tes untuk mengukur kemampuan pemecahan masalah matematis dan instrumen non tes berupa angket dan lembar observasi untuk memngetahui respon siswa terhadap pembelajaran yang dilakukan. Hasil penelitian menunjukkan bahwa peningkatan kemampuan pemecahan masalah matematis siswa yang mengikuti model DMR lebih tinggi dibandingkan siswa yang memperoleh pembelajaran langsung. Selain itu siswa menunjukkan respon yang positif, seperti antusias, senang dan percaya diri dalam pembelajaran matematika.
PENGARUH PENGGUNAAN BUKU AJAR BERBASIS STEM BERBANTUAN LEGO MINDSTORM EV3 TERHADAP PEMAHAMAN KONSEP MOMENTUM SISWA
Authors: Ayu Afifah Ratih Mega , Kaniawati Ida , Suwarma Irma Rahma 
Published: March 2024

The purpose of this research is to figure out the effect of using STEM (Science, Technology, Engineering, and Mathematic) based textbook that assisted by using LEGO mindstorm EV3 toward the students’s understanding of momentum subject. The design of this research that is pretest-postest group design. The Samples are composed of 12 students from experimental class and 12 students from control class. The results of this research show that the conceptual understanding of experimental class that using STEM-based textbook that assisted by using LEGO mindstorm EV3 is beter than the understanding of control class which using the conventional textbook in the ordinary class. The implication of this research is applying this textbook to measure the other cognitive dimention such as reasoning.AbstrakTujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan buku ajar berbasis STEM (Science, Technology, Engineering, dan Mathematics) berbantuan LEGO mindstorm EV3 dalam pembelajaran fisika terhadap pemahaman konsep siswa pada materi momentum. Penelitian ini menggunakan desain eksperimen pretest postest group design. Sampel penelitian terdiri dari 12 siswa kelompok eksperimen dan 12 siswa kelompok kontrol. Berdasarkan hasil analisis menunjukkan bahwa pemahaman konsep kelompok siswa yang menggunakan buku ajar berbasis STEM berbantuan LEGO mindstorm EV3 secara signifikan lebih meningkat dibandingkan dengan kelompok yang menggunakan buku yang biasa digunakan di sekolah. Hasil penelitian menunjukkan bahwa penggunaan buku ajar berbasis STEM berbantuan robot LEGO mindstorm EV3 dapat meningkatkan pemahaman konsep siswa pada materi momentum. Implikasi pada penelitian ini adalah menerapkan buku ajar tersebut untuk mengukur dimensi kognitif lainnya seperti penalaran.
MENGEMBANGKAN KEMAMPUAN BERPIKIR KREATIF MATEMATIK MAHASISWA PENDIDIKAN GURU SEKOLAH DASAR MELALUI PEMBELAJARAN ETNOMATEMATIKA SUNDA
Authors: Supriadi Supriadi 
Published: March 2024

This study focuses on the development of creative thinking abilities through ethnomathematics Sunda learning mathematics students primary school teacher reviewed all students, educational background and origin as well as non Sunda Sundanese culture. Subjects used were students semesters 1, 3, 5, and 7 2012/2013 academic year at a State University in West Java and Banten, in the development of teaching materials prepared by the method didactical Design Research (DDR). Then tested through experimentation stage. Instruments used in the form postes. Experimental research with posttest only control group design uses the 135 research subjects first semester students were divided into 3 groups. 2 The experimental group made teaching and Non-DDR DDR and 1 control group.Mathematical creative thinking ability of the students who get ethnomathematics Sunda learning (Non-DDR and DDR) better than students who do not. There is interaction between the learning model and culture of the original group in creative thinking skills mathematical, there is no interaction in a group educational background.AbstrakPenelitian ini berfokus pada pengembangan kemampuan berpikir kreatif matematik mahasiswa PGSD melalui pembelajaran etnomatematika Sunda ditinjau keseluruhan mahasiswa, latar belakang pendidikan dan asal budaya Sunda serta non Sunda. Subjek penelitian yang digunakan adalah mahasiswa semester 1, 3, 5, dan 7 tahun ajaran 2012/2013 di sebuah Universitas Negeri di Jawa Barat dan Banten, dalam pengembangan bahan ajar yang disusun melalui metode Didactical Design Research (DDR). Kemudian diuji melalui tahap eksperimen. Instrumen yang digunakan berupa postes. Penelitian eksperimen dengan desain posttest only control group ini menggunakan subyek penelitian 135 orang mahasiswa semester 1 yang terbagi menjadi 3 kelompok. 2 Kelompok eksperimen berbahan ajar DDR dan Non-DDR dan 1 kelompok kontrol.Kemampuan berpikir kreatif matematik antara mahasiswa yang mendapatkan pembelajaran etnomatematika Sunda (DDR dan Non-DDR) lebih baik daripada mahasiswa yang tidak. Terdapat interaksi antara model pembelajaran dan kelompok asal budaya dalam kemampuan berpikir kreatif matematik, tidak terdapat interaksi dalam kelompok latar belakang pendidikan.
THE INFLUENCE OF SLOWMATION (STUDENT-CREATED SLOW MOTION ANIMATION) ON STUDENTS’ CREATIVITY AND UNDERSTANDING OF HEAT TRANSFER
Authors: Darmawanti Hanifah Putri 
Published: March 2024

The blast in personal digital technologies worldwide, including Indonesia, offers rising opportunities to create digital media. Along with digital media creation for education, both creativity and conceptual understanding must be involved. Therefore, this research is aimed to investigate the influence of Slowmation (Student-created Slow Motion Animation) on students’ creativity and knowledge of heat transfer. The study used a pre-experimental: one group pretest-post-test design. The sample was taken by convenience sampling technique in experimental class (n=20) with the population of 8th-grade students at independence secondary school in Bandung. Students’ understanding result was obtained through the objective test with the development of a normalized gain of 0.30 (0.70 g ≥ 0.30) as medium improvement, while students’ creativity gained through the creative process and product of Slowmation with 78.2 as an above standard category.ABSTRAK Perkembangan personal teknologi digital di seluruh dunia, termasuk Indonesia, menawarkan peluang yang meningkat untuk menciptakan media digital. Seiring dengan penciptaan media digital untuk pendidikan, secara bersamaan, kreativitas dan pemahaman konseptual harus dilibatkan. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh Slowmation (Animasi Gerakan Lambat Buatan Siswa) terhadap kreativitas dan pengetahuan siswa tentang perpindahan panas. Penelitian ini menggunakan pre-experimental: one group pretest-post-test design. Pengambilan sampel dilakukan dengan teknik convenience sampling pada kelas eksperimen (n=20) dengan populasi siswa kelas VIII SMAN Mandiri Bandung. Hasil pemahaman siswa diperoleh melalui tes objektif dengan pengembangan gain ternormalisasi sebesar 0,30 (0,70 g 0,30) sebagai peningkatan sedang, sedangkan kreativitas siswa diperoleh melalui proses kreatif dan produk Slowmation dengan 78,2 seperti di atas kategori standar.