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All Journal World Chemical Engineering Journal Teknika: Jurnal Sains dan Teknologi JPsd ( Jurnal Pendidikan Sekolah Dasar ) Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika JURNAL PENDIDIKAN TAMBUSAI JURNAL PENA EDUKASI DIFFRACTION: Journal for Physics Education and Applied Physics Jurnal Pendidikan Fisika dan Sains (JPFS) Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Jurnal Ilmiah Wahana Pendidikan Journal of Energy, Material, and Instrumentation Technology NUSRA: Jurnal Penelitian dan Ilmu Pendidikan Lensa: Jurnal Kependidikan Fisika Practice of The Science of Teaching Journal: Jurnal Praktisi Pendidikan Dharma Pengabdian Perguruan Tinggi (DEPATI) Journal of Artificial Intelligence and Digital Business Innovative: Journal Of Social Science Research Islamic Journal of Integrated Science Education Kohesi: Jurnal Sains dan Teknologi
Yuvita Oktarisa
Universitas Sultan Ageng Tirtayasa
Religion Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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The different approaches between Kepler and Newton in determining the force laws Oktarisa, Yuvita
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 2 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v7i2.13085

Abstract

One of Kepler’s most significant contributions to science was finding planetary motion laws, which is the foundation of celestial mechanincs. Kepler’s laws of planetary motion were not merely guesswork. He tried to apply his understanding of the relationship between force and distance to explain his planetary laws’ physical reason. However, there is usually no akcnowledgement in introductory physics textbook to the topic of Kepler’s laws regarding how Kepler tried to explain his planetary laws. Most of the introductory physics textbooks only give Newton’s description explaianing Kepler’s laws of planetary motion. This paper describes different approaches between Kepler and Newton in determining the force law and discusses some of its pedagogical implications. 
PENGEMBANGAN MULTIMEDIA PEMBELAJARAN IPA BERBASIS KEARIFAN LOKAL DI SEKOLAH DASAR Encep Andriana; Mudmainah Vitasari; Yuvita Oktarisa; Dyan Novitasari
JPSD (Jurnal Pendidikan Sekolah Dasar) Vol 3, No 2 (2017): JPSD (Jurnal Pendidikan Sekolah Dasar)
Publisher : Department of Primary education, Faculty of Teacher Training and Education, Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.785 KB) | DOI: 10.30870/jpsd.v3i2.2139

Abstract

Abstrak. Kearifan lokal merupakan salah satu khasanah kekayaan budaya bangsa yang patut untuk dilestarikan. Upaya pelestarian kearifan lokal dapat dilakukan dengan memperkenalkan nilai-nilai kearifan lokal kepada siswa, terutama bagi siswa sekolah dasar sebagai pondasi awal dalam membentuk karakter siswa.  Mengenalkan kearifan lokal pada pembelajaran di sekolah dasar dapat dilakukan dengan cara mengintegrasikan konten kearifan lokal dalam bentuk multimedia untuk memudahkan dan menarik perhatian siswa dalam belajar.  Pengembangan multimedia berbasis kearifan lokal ini diintegrasikan pada mata pelajaran IPA, mengingat IPA merupakan mata pelajaran yang erat kaitannya dengan lingkungan sekitar. Metode penelitian ini dengan menggunakan research and development (R & D) dengan tiga fase, yang terdiri dari fase analisis keperluan, fase desain, fase pengembangan dan implementasi. Berdasarkan hasil pengembangan multimedia diperoleh hasil bahwa multimedia IPA berbasis kearifan lokal disekolah dasar sangat layak digunakan. Kata kunci: IPA, Kearifan lokal, Multimedia   Abstract. Local wisdom is one of the treasures of the nation's cultural riches that deserve to be preserved. Efforts to preserve local wisdom can be done by introducing the values of local wisdom to students, especially for primary school students as the initial foundation in shaping the character of students. Introducing local wisdom in primary school learning can be done by integrating local wisdom content in the form of multimedia to facilitate and attract students' attention in learning. Development of multimedia-based local wisdom is integrated in science subjects, given the natural science is a subject that is closely related to the surrounding environment. This research method using research and development (R & D) with three phases, consisting of phase of requirement analysis, design phase, development phase and implementation. Based on the results of multimedia development obtained the result that multimedia-based IPA based on local wisdom basic school very worthy to use Keywords: Natural Science, Local Wisdom, Multimedia
PENERAPAN MODEL PEMBELAJARAN BERBASIS PENGALAMAN BERBANTUAN MULTIMEDIA UNTUK MENINGKATKAN PENGUASAAN KONSEP DAN KOMPETENSI SAINS SISWA Yuvita Oktarisa
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 2, No 1 (2016)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.311 KB) | DOI: 10.30870/gravity.v2i1.916

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan penguasaan konsep dan kompetensi sains siswa melalui penerapan Model Pembelajaran Berbasis Pengalaman Berbantuan Multimedia (PFBP-BM) serta hubungan diantara keduanya. Penelitian menggunakan metode quasi eksperimen dengan pretest-postest control group design dimana 28 siswa mendapat perlakuan model PFBP-BM sebagai kelas eksperimen dan 28 siswa mendapat perlakuan model PFBP sebagai kelas control. Setelah dilakukan pembelajaran pada topik Momentum Impuls, diperoleh N-gain untuk penguasaan konsep kelas eksperimen 0,56 dan 0,38 untuk kelas kontrol. Untuk kompetensi sains N-gain kelas eksperimen 0,44 dan 0,29 untuk kelas kontrol. N-gain ini membuktikan bahwa model PFBP-BM dapat lebih meningkatkan penguasaan konsep dan kemampuan kompetensi sains dibandingkan dengan model PFBP. Pengujian hipotesa menunjukan, nilai t hitung lebih besar dari t tabel secara berurutan untuk penguasaan konsep dan kompetensi sains yaitu 3,940 dan 5,396 dengan nilai signifikasi α 0.000, sedangkan korelasi antara penguasaan konsep dan kemampuan sains ditunjukan dengan hasil pengujian korelasi pearson dengan nilai r≠0, yaitu 0,396. Berdasarkan hasil tersebut, dapat disimpulkan bahwa hipotesa diterima dan terdapat hubungan dengan kategori cukup antara penguasaan konsep dan kompetensi sains.
Rancang Bangun Alat Praktikum Hukum Ohm Untuk Memfasilitasi Kemampuan Berfikir Tingkat Tinggi (Higher Order Thinking Skills) Asep Saefullah; Mohammad Fakhturrokhman; Yuvita Oktarisa; Resty Dwi Arsy; Hayin Rosdiana; Vaka Gustiono; Seno Indriyanto
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 4, No 2 (2018)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.494 KB) | DOI: 10.30870/gravity.v4i2.4035

Abstract

Tujuan dari penelitian ini adalah pembuatan alat praktikum hukum Ohm yang tidak hanya memfasilitasi siswa untuk melakukan praktikum hukum Ohm, melainkan juga memfasilitasi siswa untuk memiliki keterampilan berfikir tingkat tinggi / Higher Order Thinking Skilss (HOTS) melalui kegiatan praktikum. Proses pembuatan alat praktikum hukum Ohm ini melalaui tiga tahapan yaitu : merancang, membuat, dan menguji. Pada proses merancang, alat praktikum didesain sedemikian rupa agar mampu melatihkan keterampilan berfikir tingkat tinggi, utamanya pada kemampuan menganalisis dan mengkreasi. Pada proses membuat, pembuatan alat praktikum menggunakan bantuan sinar laser, agar alat praktikum tidak mudah pecah dan penampilannya bagus. Pada proses terakhir, yaitu menguji, proses penujian bertujuan untuk membuktikan bahwa alat praktikum dapat digunakan siswa untuk menemukan konsep hukum Ohm. Hasil proses pengujian menunjukan bahwa alat praktikum dapat digunakan untuk menemukan konsep  hukum Ohm, selain itu alat praktikum jug dapat digunakan untuk melatihkan kemampuan berfkir tingkat tinggi pada siswa.
Pendampingan Guru Madrasah di Kota Serang dalam Pembuatan Alat Praktikum Fisika Berbasis Higher Order Thinking Skills (HOTS) Asep Saefullah; Yuvita Oktarisa; Muhammad Fatkhurrokhman; Lukman Nulhakim; Diana Ayu Rostikawati
Dharma Pengabdian Perguruan Tinggi (DEPATI) Vol 1 No 1 (2021): Mei 2021
Publisher : Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.874 KB) | DOI: 10.33019/depati.v1i1.2289

Abstract

Madrasah is one of the formal educational institutions that aims to develop the potential of students to the maximum. The skills acquired by students are expected to be sufficient provisions for students to be able to compete globally, but still pay attention to local wisdom. Madrasah teachers must be able to equip themselves to be able to become reliable facilitators, so that they can lead students to the gates of independence. Madrasah teachers must equip students to have Higher Order Thinking Skills (HOTS). HOTS can equip madrasah students to have the ability to think critically, negatively, logically and systematically. Practicum activity is one of the lessons that can be done so that students have HOTS. However, madrasah teachers are often confronted with the inadequacy of the school's physics practicum tools. Through this community service activity, teachers receive assistance on how to make physics practicum tools and their guidelines. In addition, teachers also receive assistance on how to manage learning that can train HOTS. The results of community service show that madrasah teachers are able to make physics practicum tools that can be used in HOTS-based learning.
Development of Virtual Laboratory Electronic Student Worksheet Using PjBL to Improve Critical Thinking Ability Julianti, Beti; Haryadi, Rudi; Oktarisa, Yuvita
Islamic Journal of Integrated Science Education (IJISE) Vol. 2 No. 1 (2023): March
Publisher : Program Studi Tadris IPA, Fakultas Tarbiyah (IAIN) Kediri, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.617 KB) | DOI: 10.30762/ijise.v2i1.885

Abstract

The use of virtual laboratories is a solution for schools that have not been able to carry out practical activities directly. This study aims to develop virtual laboratory electronic student using PjBL which can improve students' critical thinking ability. The research method used is the research and development (R & D) method with the ADDIE development model (analysis, design, development, implementation, & evaluate). The research subjects used were 30 students of class XII IPA who were selected using a purposive sampling technique. Data collection instruments consist of expert validation sheets, student response questionnaires, and critical thinking ability tests (pretest and posttest). The data analysis techniques used are Likert scale and n-gain analysis. The evaluation of the feasibility of electronic student worksheet by the expert got an average percentage of 85.41% with a very valid category, student test results got a n-gain value of 0.38 with a moderate improvement category, and the results of student responses got an average percentage value of 91.35% in the very good category. Thus, the developed virtual laboratory electronic student worksheet using PjBL can Improve students' critical thinking ability
Hierarchical clustering algorithm-dendogram using Euclidean and Manhattan distance Mukhtar, Mukhtar; Majahar Ali, Majid Khan; Arina, Faula; Wicaksono, Agung Satrio; Ikhsan, Aulia; Budiaji, Weksi; Abdullah, Syarif; Pertiwi, Dinda Dwi Anugrah; Zidny, Robby; Oktarisa, Yuvita; Sukarna, Royan Habibie
Jurnal Teknika Vol 20, No 1 (2024): Available Online in June 2024
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v20i1.23187

Abstract

This paper presents the outcomes of a research experiment on the drying process of seaweed. There are numerous approaches to clustering data, such as partitioning and the Hierarchical Clustering Algorithm (HCA). The HCA has been implemented in binary tree structures to visualize data clustering. We conducted a comparative analysis of the four primary methodologies utilized in HCA, namely: 1) single linkage, 2) complete linkage, 3) average linkage, and 4) Ward's linkage. Clustering validation is widely recognized as a crucial issue that significantly impacts the effectiveness of clustering algorithms. Clustering validation can be identified, such as internal and external validation. Internal clustering validation, in particular, holds significant importance in the realm of data science. With this article, the main goal is to do an empirical evaluation of the traits that a representative set of internal clustering validation indices, namely Connectivity, Dunn, and Silhouette, show. In this paper, the HCA applies two distance functions between Euclidean and Manhattan distances to analyze the entanglement function and internal validity.
Sensors and Mini Photocatalytic Reactor as a Tool for Measure CO2 Gas from the Degradation of the Detergent Active Compound Maryani, Yeyen; Ruhiat, Yayat; Oktarisa, Yuvita
World Chemical Engineering Journal VOLUME 5 NO. 2 DECEMBER 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i2.12289

Abstract

This study aims to test the performance and feasibility of new tools and methods for analysis of detergent based on the photocatalytic degradation of LAS and ABS, which is a detergent active compound. Testing is done by measuring the CO2 gas formed from the degradation at every one-hour for five hours of reaction. The results of the determination of analytical parameters are as follows, sensitivity: 0.394 to 0.460, the limit of detection: 0.16 mg/L, accuracy: 0.94% to 12.88% and punctilio: 0.12% to 0.14%, the range of linearity: 0.4 mg/L to 2 mg/L. Results of calibration using standard solutions obtained regression equation y = 1.033 x - 77.713 with R2 = 0.988, indicating that the instrument has been calibrated and fit for use for the analysis of LAS and ABS with concentrations above or equal to 25 mg/L. The test results showed that the developed method is practical, effective and efficient.
Development of Virtual Laboratory Electronic Student Worksheet Using PjBL to Improve Critical Thinking Ability Julianti, Beti; Haryadi, Rudi; Oktarisa, Yuvita
Islamic Journal of Integrated Science Education (IJISE) Vol. 2 No. 1 (2023): March
Publisher : Program Studi Tadris IPA, Fakultas Tarbiyah (IAIN) Kediri, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/ijise.v2i1.885

Abstract

The use of virtual laboratories is a solution for schools that have not been able to carry out practical activities directly. This study aims to develop virtual laboratory electronic student using PjBL which can improve students' critical thinking ability. The research method used is the research and development (R & D) method with the ADDIE development model (analysis, design, development, implementation, & evaluate). The research subjects used were 30 students of class XII IPA who were selected using a purposive sampling technique. Data collection instruments consist of expert validation sheets, student response questionnaires, and critical thinking ability tests (pretest and posttest). The data analysis techniques used are Likert scale and n-gain analysis. The evaluation of the feasibility of electronic student worksheet by the expert got an average percentage of 85.41% with a very valid category, student test results got a n-gain value of 0.38 with a moderate improvement category, and the results of student responses got an average percentage value of 91.35% in the very good category. Thus, the developed virtual laboratory electronic student worksheet using PjBL can Improve students' critical thinking ability
The Effect of Chitosan Addition on Phase Composition and Detection Sensitivity of Fe3O4/Chitosan Magnetic Label Nanoparticles Based on Giant Magnetoresistance Sensor Prayoga, Galih Aji; Oktarisa, Yuvita; Antarnusa, Ganesha; Fitriani, Nur Shabrina; Aryani, Refi Meilia; Suherman, Andri; Guntara, Yudi
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 4 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i4.282

Abstract

This study describes how phase composition affects the ability of giant magnetoresistance (GMR) chip-based sensors to detect magnetic labels made of Fe3O4 and Fe3O4/chitosan that were synthesized using the co-precipitation method. X-ray diffraction (XRD) analysis revealed that the synthesized nanoparticles were a mixture of magnetite and maghemite phases. The most intense diffraction peak at 2θ = 35.6° (311) confirmed the presence of the magnetite phase. The addition of chitosan significantly increased the proportion of the maghemite phase from 10% to 25%, with the appearance of an additional peak at 2θ = 33° (221). The modification of Fe3O4 nanoparticles into Fe3O4/chitosan nanocomposites resulted in changes in sensor sensitivity. The GMR sensor successfully detected Fe3O4 and Fe3O4/chitosan magnetic labels within 30 seconds with high sensitivities of 0.746 and 0.761 mV/( g/mL), respectively. The limit of detection (LOD) was also very low at 0.419 and 0.428 g/mL. These findings show that Fe3O4/chitosan nanocomposites integrated GMR chip-based sensors can be a dependable instrument for detecting a variety of biomolecules such as Bovine serum albumin (BSA).
Co-Authors Abdul Fatah Alfarouqy, Ahmad Haekal Alzahranitia Annida Andri Suherman Antarnusa, Ganesha Arina, Faula Aryani, Refi Meilia Asep Saefullah Asep Saefullah Budiaji, Weksi Diana Ayu Rostikawati Dyan Novitasari Encep Andriana Fitriani, Nur Shabrina fitriyah Guntara, Yudi Hayin Rosdiana Ikhsan, Aulia Julianti, Beti Junitasari, Junitasari Lukman Nulhakim M, Yus Rama Denny Majahar Ali, Majid Khan Maryani, Yeyen Meldiana, Mela Mohammad Fakhturrokhman Mudmainah Vitasari Muhammad Fatkhurrokhman Mukhtar, Mukhtar Oktarina, Silsa Dwi Paramitha, Devitriana Putri Pertiwi, Dinda Dwi Anugrah Prayoga, Galih Aji Rahmat Firman Septiyanto, Rahmat Firman Rahmawati Sasani Resty Dwi Arsy Rita Septiani, Rita Robby Zidny Rudi Haryadi Rudi Haryadi, Rudi Ruhiat, Yayat Selviani, Fitria Seno Indriyanto Sukarna, Royan Habibie Syarif Abdullah Tiaroh Tiaroh Tiaroh, Tiaroh Tresna Galih Sukma Suryana Tri Upi Hajarwati Juldial Ully Arta Miladia Vaka Gustiono Wicaksono, Agung Satrio Yayat Ruhiat Yayat Ruhiat Yudi Guntara