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All Journal Jurnal Geliga Sains: Jurnal Pendidikan Fisika JBIO: jurnal biosains (the journal of biosciences) WAPFI (Wahana Pendidikan Fisika) JURNAL PENELITIAN SAINTIKA SEMIRATA 2015 Jurnal Ikatan Alumni Fisika Universitas Negeri Medan CESS (Journal of Computer Engineering, System and Science) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pendidikan Fisika JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Journal of Physics: Theories and Applications Jurnal Penelitian Pendidikan IPA (JPPIPA) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Journal of Management and Bussines (JOMB) Journal of Technomaterial Physics JURNAL PENELITIAN BIDANG PENDIDIKAN EINSTEIN (E-JOURNAL) INPAFI (Inovasi Pembelajaran Fisika) IPER (Indonesian Physics Education Research) Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat Journal of Learning and Technology in Physics
Rita Juliani
Jurusan Fisika,Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Implementasi pembelajaran diferensiasi berbasis projek dalam mengakselerasi kurikulum merdeka Rita Juliani; Rahmatsyah Rahmatsyah; Rajo Hasim Lubis; Agung Setia Batu Bara; Budiman Nasution; Aji Ibnu Khoir; Tiara Rizka Febriza; Nur Saimah Lubis; Tiara Syahdila; Khairanum Andini
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 3 (2024): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i3.25881

Abstract

AbstrakSMA Negeri 1 Percut Sei Tuan merupakan sekolah yang menerapkan kurikulum Merdeka. Kegiatan PKM Implementasi Pembelajaran Diferensiasi Berbasis Projek dalam Mengakselerasi Kurikulum Merdeka bertujuan untuk memahami dan meningkatkan efektivitas pembelajaran diferensiasi yang didasarkan pada pendekatan projek dalam konteks Kurikulum Merdeka. Fokus kegiatan terletak pada penerapan strategi diferensiasi untuk memenuhi kebutuhan belajar yang beragam di tengah kurikulum yang memberikan kebebasan dan fleksibilitas khususnya dalam menghasilkan media berorientasi diferensiasi. Kegiatan PKM mengeksplorasi integrasi model pembelajaran projek dengan diferensiasi untuk memfasilitasi perkembangan keterampilan dan pemahaman siswa secara holistik, menciptakan landasan untuk penerapan Kurikulum Merdeka yang memungkinkan perkembangan optimal siswa sesuai dengan potensi individu siswa serta melalui pengabdian diharapkan mempercepat kurikulum merdeka. Metode yang digunakan pada kegiatan PKM dengan tiga tahapan yaitu tahap persiapan, pelaksanaan, dan penutup. Tahap persiapan dimulai dari observasi dan wawancara, pemetaan potensi, pendataan calon peserta dan persiapan tim dan bahan. Tahap pelaksanaan kegiatan dengan melakukan sosialisasi, pelatihan dan pendampingan, serta tahap penutup dengan melaksanakan monitoring dan evaluasi. Hasil yang diperoleh guru memahami dan mengimplementasikan pembelajaran diferensiasi berbasis projek dengan membuat inovasi media dan bahan ajar terintegrasi diferensiasi sehingga terwujud efektivitas dalam mengakslerasi kurikulum merdeka. Kata kunci: pembelajaran diferensiasi; proyek; kurikulum merdeka. Abstract SMA Negeri 1 Percut Sei Tuan is a school that implements the Merdeka curriculum. The PKM activity of Optimizing Project-Based Differentiated Learning to Accelerate the Merdeka Curriculum aims to understand and improve the effectiveness of differentiated learning based on the project approach in the context of the Merdeka Curriculum. The focus of the activity lies in the application of differentiation strategies to meet diverse learning needs in the midst of a curriculum that provides freedom and flexibility, especially in producing differentiation-oriented media. The PKM activity explores the integration of the project learning model with differentiation to facilitate the development of students' skills and understanding holistically, creating a foundation for the implementation of the Merdeka Curriculum that allows for optimal student development according to the potential of individual students and through devotion it is hoped that it can accelerate the Merdeka curriculum. The method used in the PKM activity has three stages, namely the preparation, implementation, and closing stages. The preparation stage starts from observation and interviews, potential mapping, data collection of prospective participants and preparation of teams and materials. The implementation stage of the activity by conducting socialization, training and mentoring, and the closing stage by carrying out monitoring and evaluation. The results obtained by teachers understand and implement project-based differentiation learning by creating innovative media and integrated differentiation teaching materials so that effectiveness can be realized in accelerating the independent curriculum. Keywords: differentiated learning; project; independent curriculum.
Analysis of Rare Earth Metal Potential of Parmonangan Area Using X-Ray Fluorescence Rita Juliani; Rahmatsyah; Togi Tampubolon; Erni Halawa; Silvia Dona Sari; Ismayana; Rama Yana Purba
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.10355

Abstract

Rare Earth Elements (REEs) are strategic commodities essential for various high-technology applications, including renewable energy, electronics, and defense systems. However, their uneven global distribution and increasing demand have intensified the need for exploration in undercharacterized regions. This study investigates the REE potential of weathered granitic rocks in the Pamonangan Sub-district, North Sumatra. A total of 200 mesh rock samples from outcrop and subsurface locations were analyzed using X-Ray Fluorescence (XRF) to determine their elemental composition. The geochemical results show high concentrations of SiO₂ and Al₂O₃ relative to Fe₂O₃, suggesting significant weathering of the granitic parent rocks. The combination of elevated SiO₂ and low P₂O₅ contents indicates a predominance of silica-hosted REE phases over phosphate-hosted minerals. Mineralogical analysis confirms the presence of cassiterite, chlorite, monazite, and zircon as secondary REE carriers, particularly of Ce and La. These findings point to a previously unrecognized potential for REE mineralization in the region. This research provides a geochemical and mineralogical framework for future exploration and highlights the importance of weathered granitoids as prospective REE sources in Indonesia.
Implementation of the Problem Based Learning Model on Critical Thinking and Problem-Solving Skills in Dynamic Electricity Material Intan Kemala Sari NS; Nurdin Siregar; Rita Juliani
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.11725

Abstract

This study aims to analyze the effect of problem based learning model on critical thinking ability and physics problem solving of high school students. This study is a quasi-experimental study with a two-group design with two classes, namely the experimental class and the control class. The population of this study consisted of 2 classes and sampling was carried out by saturated sampling. Class XII MIA 1 as the experimental class and class XII MIA 2 as the control class, each consisting of 30 students. The instrument used in this study was a learning outcome test in the form of an essay test of 10 questions. Data analysis was carried out using the MANOVA test. The results of the study showed that the average pretest and posttest scores in the experimental class were 57.00 and 84.00, respectively, while the average pretest and posttest scores in the control class were 53.00 and 73.50, respectively. Data analysis using the MANOVA test concluded that there was an effect of the problem based learning model on critical thinking ability and problem solving of high school students
The IDENTIFIKASI BATUAN BAWAH PERMUKAAN DAERAH PANAS BUMI TAPANULI UTARA MENGGUNAKAN METODE HORIZONTAL TO VERTICAL SPECTRAL RATIO Iswari, Wita; Juliani, Rita
EINSTEIN (e-Journal) Vol. 14 No. 1 (2026): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/b1bd4b60

Abstract

The research aims to identify subsurface rocks in the geothermal area of North Tapanuli using the Horizontal to Vertical Spectral Ratio (HVSR) method. The HVSR method analyzes the spectral response of microtremor waves to obtain dominant frequency parameters (f₀) and amplification factors (A₀) that can describe the depth and type of subsurface layers. Data were collected in four locations, namely Partali Toruan village, Parbubu village, Situmeang Hasundutan village, and Simasom Toruan village. The analysis results show that the f₀ values in Partali Toruan Village, Situmeang Hasundutan Village, and Simasom Toruan Village indicate the presence of breccia, andesite, and basalt bedrock in the subsurface and function as cover rock in the geothermal system. Parbubu Village produces f₀ values that indicate an alluvium sedimentary layer. The shear wave velocity (Vs) profiles obtained show a stratigraphic structure typical of volcanic areas, with a significant increase in Vs with depth indicating a transition from medium soil to hard rock.
Synthesis of bimetallic Ag-Cu nanoparticles using chemical reduction method as antibacterial agents against Escherichia coli Sitorus, Ceria; Sirait, Makmur; Juliani, Rita; Motlan, Motlan; Ginting, Eva Marlina; Siregar, Nurdin; Sinaga, Rafles
Journal of Physics: Theories and Applications Vol 9, No 2 (2025): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v9i2.104323

Abstract

Bimetallic nanoparticles offer enhanced antibacterial properties due to synergistic effects between different metal ions. In this study, Ag-Cu nanoparticles were synthesized using a chemical reduction method with NaBH₄ as the reducing agent and PVP as a stabilizer. The resulting nanoparticles showed a greenish-black color and an average particle size of 308.8 nm with narrow distribution. Antibacterial activity against Escherichia coli was tested using the disc diffusion method at concentrations of 5%, 10%, and 15%. The results showed a concentration-dependent increase in inhibition zones, with a maximum average of 7.8 mm. Although lower than the positive control, the findings confirm the potential of Ag-Cu nanoparticles as alternative antibacterial agents. Further optimization is recommended for biomedical applications.
Co-Authors Abd. Hakim Agung Setia Batu Bara Agus Kembaren Aji Ibnu Khoir Akbar Hasadi Putra S Andil Siregar Ayu, Putri Batubara, Agung Setia Bintang Lesmana Hutasoit Budiman Nasution Chintya Maretti Pandiangan Cika Faradila Derlina . Derlina Nasution Dian Wardana Dita Trisna Panjaitan Ditya Lufita Edward Relius Laoli Eliyana . Elysabeth Luisa Pakpahan Emelia Ginting Erni Halawa Eva Marlina Ginting Evi Juliani Fachry Abda El Rahman Fatuan Arif Sitorus Fauzia, Izza Felisa Irawani Hutabarat Fenny Cloudya Damanik Fitri Meliana Friscylia Tampubolon Friscylia Tampubolon Gilang Ma'arif Priatama Halawa, Erniwati Halimatun Sakdiah Hana Daforosa R Siagian Harahap, Gusniar Hardianti, Suci Hartono, Jessica Kristanti Hengki Sembiring Hilyati Iftinan Lubis Hutasuhut, Asla Tara Roma Ito Ibnu Akbar Ihdi Shabrona Putri Ilan Nia Lestari Irma Sari Minalta Tarigan Ismayana Isti Ullfa Parinduri Iswari, Wita Jeksen Kristian Sinaga Jon Berghauser Aritonang Juli Limbong Khairanum Andini Kiki Santoso Laili Suryani Laina Miska Laurenchus Manurung Laurenchus Manurung Linda Sari Liza Karina Octovyanda Pohan Makmur Sirait Maria Firma S. Ginting Mariana Simangunsong Mariana Simangunsong Mester Sitepu, Mester Miska, Laina Motlan . Nanda Rahmadani Nur Saimah Lubis Nur'aini M, Rida Sitri Nurdin Bukit Nurdin Siregar Nurhikmah Weisdiyanti Nurhikmah Weisdiyanti Nurul Qodri Ompusunngu, Yohana D. Purba, Rama Yana Putri Astuti Rahmadani, Nanda Rahmatsyah Rahmatsyah Rahmatsyah . Rahmatsyah Rahmatsyah, Rahmatsyah Raisa Nabila Rajo Hasim Lubis Rama Yana Purba Rangga Prasetyo Darmawan Rappel Situmorang Rdiansyah, Sultan Lazua Resti Masfidar Waruwu Rini Lestari Rionaldo Tamba Riri Syavira Riri Syavira Riri Syavira Riski Juliandri Tambunan Ruth Fika Ronauli Simbolon Sahyar . Sahyar Sahyar Saima Putrini R. Harahap Sani, Ridwan A Sari NS, Intan Kemala Sembiring, Hengki Sigit Irawan Silvania CarellaPrinst Silvia Dona Sari Simanjuntak, Bill Cklinton Simatupang, Rochayanti N. R. Sinaga, Hari Otta Sinaga, Rafles Sitorus, Ceria Sri Ratika Samosir Sri Ratika Samosir Sulandari Sulandari Sulandari Sulandari Sulandari Sulandari Tiaminah Nasution Tiara Rizka Febriza Tiara Syahdila Timbangen Sembiring Togi Tampubolon Togi Tampubolon Vebrina Adnin Vianola Elisa Karo Sekali Warmi Hartati Sitanggang Yeni Sipangkar Zahra Tazkia Zulfran Silaban