Article Per Year (5 Year)
p-Index From 2021 - 2026
9.841
P-Index
This Author published in this journals
All Journal BERKALA FISIKA Sainstek SEMIRATA 2015 Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Ilmiah Pendidikan Fisika Spektra: Jurnal Fisika dan Aplikasinya JURNAL EKSAKTA PENDIDIKAN (JEP) JURNAL PENDIDIKAN TAMBUSAI Jurnal Teori dan Aplikasi Fisika Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Pelita Eksakta Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Humanities Pengabdian Kepada Masyarakat Jurnal Ilmiah Profesi Pendidikan Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika Journal of Comprehensive Science MASALIQ: Jurnal Pendidikan dan Sains Journal of Innovative Physics Teaching (JIPT) Journal of Climate Change Society Physics Learning and Education Journal of Experimental and Applied Physics
Yenni Darvina
Universias Negeri Padang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 180 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 180 Documents
Search

 14   15   16   17   18 
Pengaruh Variasi Doping Urea terhadap Karakteristik Film Tipis ZnO/Graphene Oxide sebagai Kandidat Katalis Solar Cell Azzahra, Zakia; Jonuarti, Riri; Ratnawulan, Ratnawulan; Darvina, Yenni
Jurnal Pendidikan Tambusai Vol. 8 No. 3 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Solar cell ialah perangkat yang bermanfaat untuk mengalihkan energi matahari menjadi energi listrik. Sekarang, ZnO dan Graphen Oxide menjadi salahsatu material yang mejanjikan sebagai katalis. Namun, pada material ZnO/Graphene Oxide rentan terjadinya efek rekombinasi akibat lebarnya celah pita energi, sehingga penambahan pengotor seperti urea diperlukan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan doping urea pada film tipis Zno/Graphene Oxide terhadap struktur dan ukuran kristal serta celah pita energi yang nantinya akan dijadikan sebagai katalis pada solar cell. Jenis penelitian ini adalah penelitian eksperimen dengan variasi jumlah doping urea yang dipakai sebesar 0,1 mol, 0,3 mol dan 0,5 mol menggunakan metoda sol-gel spin coating. Dari analisis data yang dilakukan semakin banyak jumlah urea maka ukuran kristalin semakin meningkat dari 40,52 nm menjadi 48,53 nm. Sebaliknya, semakin banyak jumlah urea, celah pita energi akan semakin mengecil dari 2,70 eV menjadi 2,66 eV. Hal ini menunjukkan bahwa film tipis ZnO/ Graphene Oxide dengan penambahan pengotor urea dapat meningkatkan konduktifitas elektronik dan berpotensi sebagai katalis solar cell.
IMPROVING ENVIRONMENTAL SANITATION KNOWLEDGE OF SUGARCANE PROCESSING FARMERS GROUP IN NAGARI BATUBULEK, TANAH DATAR REGENCY Ramli, Ramli; Desnita, Desnita; Darvina, Yenni; Mawardi, Mawardi
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 7 No. 3 (2023): SEPTEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v7i3.1828

Abstract

Nagari Batubulek is one of the sugarcane plantation areas in Tanah Datar regency, West Sumatra province, Indonesia. In nagari Batubulek itself, the “Marapalam Indah” farmer group processes sugar cane using a pressing machine and has 10 stoves to cook the cane into cane sugar. Every day this farmer group processes 750 kg of sugarcane into approximately 75 kg of cane sugar and 250 kg of bagasse. Currently, the bagasse produced is burned, as a result the smoke from the burning disturbs workers and pollutes the surrounding environment. Based on the results of interviews with the heads of farmer groups and several visits to the location of the kitchen for making sugar cane, it was found that the partner's problem was that farmers' knowledge in environmental sanitation were still low. The solution offered is to increase the knowledge and skills of partner communities to process bagasse into useful materials and to improve the sanitation of a clean kitchen environment through ongoing training and assistance. After the training and counseling, it was seen that the knowledge of environmental sanitation from the farmer groups had increased.
Validity and Practicality of Project-Based Learning Student Worksheets on The Subject of Environmental Pollution for Physics Phase E Setivawani, Andrisa; Darvina, Yenni
PILLAR OF PHYSICS EDUCATION Vol 18, No 4 (2025)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/15683171074

Abstract

Teaching materials play a crucial role in the learning process and can greatly enhance the quality of education. An autonomous curriculum calls for better educational practices, and one such strategy is the Project Based Learning (PjBL) based Learner Worksheet (LKPD). The purpose of this research is to evaluate the efficacy and viability of a PBL-based LKPD on pollution in the environment lesson plan for physics class X. Using a development model modified from the 4D model, Research and Development (R&D) is the research kind employed. Three professors from FMIPA UNP's Physics department tested the efficacy of PjBL-based LKPD on environmental pollution content for upper-level physics courses. Over the course of the 2023–2024 academic year, 19 students from Fase E at SMA N 3 Bukittinggi, together with two physics instructors from that school and one from SMA N 2 Bukittinggi, participated in the practicality exam. Validity and practicality surveys were utilized as study instruments. The Aikens V formula was used to analyze the validity results, while descriptive statistics were employed to analyze the practicality results. The PJBL-based LKPD on environmental pollution for Physics phase E lessons met the legitimate criteria with an average score of 0.89846, according to the assessment analysis results from the three specialists: linguists, material experts, and media experts. With an average score of 88.286%, the PjBL-based LKPD on environmental pollution for Physics phase E learning fulfilled the practical criteria. This means that the material is valid, practical, and can be used for learning, according to the results of the practicality assessment sheet analysis, which involved 19 people from both the teaching and student populations.
Design and Validity of Electronic Assessments to Assess Students’ Creative Thinking Abilities on The Topic of Newton’s Laws Widara, Rofifah; Mufit, Fatni; Darvina, Yenni; Suherman, Dea Stivani
Physics Learning and Education Vol. 3 No. 4 (2025): December Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v3i4.264

Abstract

This study aims to develop and validate a comprehensive electronic assessment package to measure students' creative thinking abilities on the topic of Newton’s Laws. While creative thinking abilities are important to foster creativity, as one of 21st century skills, physics assessments often do not specifically measure this ability. This research addresses that gap by designing a complete and modern assessment system that uniquely integrates diagnostic, formative, and summative instruments into a single package. The study employed a Research and Development (R&D) method, adapting the Plomp model with a focus on the preliminary and prototyping stages. The feasibility of the product was tested through content validation by three experts, with the data analyzed using the Aiken's V index. The results show that all three instruments (diagnostic, formative, and summative), achieved a high validity category. In conclusion, the developed electronic assessment package is a valid and feasible instrument for comprehensively assessing creative thinking abilities in physics
Optimalisasi Potensi Wisata Desa Lumindai Kota Sawahlunto Sumatera Barat dengan Meningkatkan Kesadaran Masyarakat terhadap Sumber Daya Alam dan Seni Budayanya Hamdi Rifai; Ihsania Ikrima Kinanti; Riri Jonuarti; Yulhendri Yulhendri; Yenni Darvina; Harman Amir; Rifi Wasrika; Fadilla Septiani; Gustika Yonanda; Retna Junia; Chairunnas Chairunnas; Syair Nandi
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 7 No 3 (2025): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v7i3.1379

Abstract

Lumindai merupakan salah satu geosite dari Geopark Nasional Sawahlunto dengan potensi wisata alam seperti Hutan Batu, Gua Batu Kudo, Puncak Panjaringan, dan Air Terjun Batimpo yang dikelola oleh pemerintah daerah melalui POKDARWIS Talawi Hilie. Namun, karena kurangnya kesadaran masyarakat terhadap keunikan alam dan budaya mereka sendiri yang menjadi dasar dari suatu objek wisata serta keterbatasan dalam pengelolaan pariwisata, pemasaran dan sistem informasi, sehingga belum meningkatkan jumlah kunjungan turis dan memberikan dampak ekonomi yang signifikan bagi masyarakat Lumindai. Tujuan dari kegiatan ini adalah meningkatkan kesadaran masyarakat dan pemerintahan Desa Lumindai dengan cara menggali dan mempelajari potensi wisata (Alami dan Kebudayaan) Desa Lumindai agar dapat meningkatkan kesejahteraan masyarakat setempat. Penggalian potensi ini menggunakan teknik participatory action research (PAR) dan pengumpulan data menggunakan observasi, wawancara, dan dokumentasi. Dari hasil penggalian potensi diketahui bahwa didapatkan keunggulan alam, seni, budaya, dan kuliner. Dari segi potensi alam, Desa Lumindai memiliki objek wisata Hutan Batu, Gua Batu Kudo, Puncak Panjaringan, dan Air Terjun Batimpo. Sektor kesenian, Desa Lumindai memiliki berbagai jenis kesenian khas yang mencerminkan budaya setempat, seperti Silek Sitaralak, Barsanji, Randai, Salawat Dulang, Dabuih, Dikia Rabana, dan Tenun Songket. Sektor pertanian, desa ini memiliki potensi perkebunan tembakau berkualitas tinggi dan pohon aren penghasil nira yang menjadi bahan pembuatan gula aren. Sedangkan potensi kuliner Desa Lumindai menawarkan beragam makanan dan minuman. Hasil ini menunjukkan bahwa Desa Lumindai memiliki potensi yang besar untuk dikembangkan sebagai destinasi wisata, taman pendidikan (education park atau edupark) dan sumber ilmu pengetahuan.
The Validity of Context-Based E-modules on Straight Motion Material to Improve the Critical Thinking Skills of High School Students Larasati br Ginting, Putri Zulvia; Desnita, Desnita; Festiyed, Festiyed; Darvina, Yenni
Journal of Innovative Physics Teaching Vol. 3 No. 2 (2025): Journal of Innovative Physics Teaching (JIPT)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jipt/vol3-iss2/96

Abstract

Critical Thinking is one of the important components in the independent curriculum Critical thinking is essential because it allows us to analyze, assess, and evaluate information, as well as make informed and logical decisions. One way to improve students' critical thinking skills is to use teaching materials. One of the teaching materials that is expected to overcome this problem is an E-Module based on a contextual approach to Straight Motion material to improve students' critical thinking skills. The type of research used in this study is Research and Development (R&D) research with a 4D development model. In this report, the results of the research are presented at the define, design, and develop stages. At the definition stage, observations were made to several schools. In the design stage, the design of the CTL integrated e-module framework was carried out. At the development stage, validation tests and practicality tests are carried out on the products that have been developed. The data instruments used in this study were questionnaires for teachers and students, validity test sheets and practicality test sheets. The data analysis techniques used are product validity analysis using Aiken’s V and product practicality analysis. A validity value of 0.90 was obtained with valid criteria. It can be concluded that the E-Module with a contextual approach to Straight Motion material to improve students' critical thinking skills developed is valid.
The Effectiviness of The Generative Learning Model with Cognitive Conflict Strategy on Students’ Science Literacy in Fluid Material in Grade XI Siti Rahma Fitri Yani; Akmam, Akmam; Darvina, Yenni; Novitra, Fuja
Journal of Innovative Physics Teaching Vol. 3 No. 2 (2025): Journal of Innovative Physics Teaching (JIPT)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jipt/vol3-iss2/105

Abstract

Science literacy is an important skill in modern science education, involving understanding concepts, reasoning scientifically, and applying science in everyday situations. However, the level of science literacy among students in Indonesia is still low, as seen in the 2022 PISA results, which are below the global average. This shows the need for learning models that can increase cognitive participation and form a deep conceptual understanding. Generative learning models, which focus on knowledge construction through the integration of prior knowledge with new learning experiences, are considered suitable for improving science literacy, especially when combined with cognitive conflict strategies. This study aims to examine the impact of a generative learning model that uses cognitive conflict strategies on students' science literacy on the topic of Fluids in Grade XI Phase F. This study applied a quasi-experimental method with a single group pretest-posttest design. The results show an increase in the average score from 63.75 on the pretest to 91.25 on the posttest. The hypothesis test produced a significance value of 0.000 (less than 0.05) with an N-Gain of 0.7667, which is classified as high. These findings prove that the generative learning model with cognitive conflict strategies is effective in improving students' science literacy.
The Effect of Learning Using the LKPD-Assisted PjBL Model on Creative Thinking Ability in Class X Phase E of SMAN 2 Sijunjung Idha, Bunga Amanda; Anshari, Rio; Darvina, Yenni; Riyasni, Selma
Physics Learning and Education Vol. 4 No. 1 (2026): March Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v4i1.291

Abstract

Students’ creative thinking skills in physics learning, particularly on alternative energy topics, remain relatively low due to teacher-centered instructional practices. This study aimed to examine the effect of the Project Based Learning (PjBL) model assisted by Student Worksheets (LKPD) on students’ creative thinking skills. This research employed a quantitative approach using a quasi-experimental design with a nonequivalent control group. The sample consisted of two classes of grade X Phase E students at SMAN 2 Sijunjung, with class X E8 as the experimental group and X E7 as the control group. Data were collected using a creative thinking skills test administered as pretest and posttest. The data were analyzed using normality tests, homogeneity tests, and independent sample t-tests. The results showed that the experimental class achieved a higher mean posttest score 76.1 compared to the control class 63.1. The t-test results indicated a significant difference at the 5% significance level. These findings indicate that the LKPD-assisted PjBL model has a significant positive effect on students’ creative thinking skills in learning alternative energy concepts.
Rancang Bangun Sistem Pengukuran Tekanan Udara Menggunakan DT-Sense Barometric Pressure Berbasis Internet of Things dengan Display Smartphone Indah Tri Handini; Yulkifi Yulkifi; Yenni Darvina
Jurnal Teori dan Aplikasi Fisika Vol. 8 No. 1 (2020): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v8i1.230

Abstract

Community Assistance in Promotion Strategy and Tourism Services of Puncak Pato Fuja Novitra; Selma Riyasni; Dea Stivani Suherman; Festiyed Festiyed; Yenni Darvina
Pelita Eksakta Vol 9 No 1 (2026): Pelita Eksakta, Vol. 9, No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol9-iss1/319

Abstract

Puncak Pato possesses rich natural and cultural potential, yet its tourism promotion and service quality remain limited. This community engagement program aimed to strengthen local capacity in developing promotion strategies and improving tourism services. The activities involved socialization, training, focus group discussions, and field mentoring. Post-test results showed a significant improvement, with an average of 87.5% correct responses, particularly in cultural understanding, hospitality ethics, and basic photography and videography skills (90–100%). The program also produced an output in the form of promotional videos of Nagari Batu Bulek, collaboratively created and shared on social media as digital promotion media. These achievements demonstrate the community’s enhanced digital literacy, creativity, and confidence in managing local tourism independently. Overall, the program contributed to strengthening Puncak Pato’s branding and competitiveness while promoting sustainable community-based tourism development.
Co-Authors - Afrizal - Rahmi - Ramli - Ramli - Syakbaniah - Yulkifli - Yulkifli Abdul Azis Abdul Aziz Ade Aprilia Ade Usra Berli Afdatul Zikri Ahmad Fauzi Aifah Fauziah Akmam Akmam Alif Yulanda Putri Almunazar, Fauziyah Alqadri, Dheo Alwi Nofriandi Amali Putra Ambran Hartono amira tiara wulandari Andari Oktafiani Anisa Meysi Wardi Annisa Febriani, Annisa Anofa Liona Anwar, Suci Aprilia Cahaya Ari Arfandi arifaldi arifaldi Asfaha, Auzha Hira Asrad Hafizah Asrizal Asrizal Asrizal Atika Dwi Maharani Zuler Audia, Washilla Aulia, Mhd Reyfanza Aulia Azca Aryadiva Mahengga Azura Carolina Harsani Azzahra, Zakia Baehaqi Bella Salsa Bella Sukma Putri Chairunnas Chairunnas Cici Ramayanti Dara Putri Pratama Dea Stivani Suherman Desnita Desra Yarsina Dicko Maulana Syahdan Diffa Azilia Dila Alhumaira Dola Afriyenti Edi Sanjaya Elsa Imelda Elsa Okta Memori Elsa Rahmayuni everly aberta Fadhila Ulfa Jhora Fadilla Septiani Fadillah Ulfah Fakhrur Rhozy Fani, Meylin Sir Fanny Rahmatina Rahim Fatni Mufit Fatni Mutfit Fauziyah, Faadhilah Febrian Syah Febrian, Nanda Festiyed Fio Adella Illahi Firda Annisa Fitrah Ayu fitri rahmi Fitria Murti Fran Surya Andi Fredy Pratama Frima Suci Agustia Fuja Novitra Gina Fadilah NST Gusnedi Gusnedi Gusnedi Gusnedi Gusnedi, - Gustika Yonanda Hamdi Rifai Hardina, Yuli Harman Amir Hasya Syahmi Hazrati Ashel Hersha Hanifa Hidayati Hidayati Hidayati Hidayati Hidayati Hidayati Hifzi, Zudiya Hilmi Rizki Anjani Hrp, Abdul Maulub Hufri Hufri Idha, Bunga Amanda Ihsania Ikrima Kinanti Ilahi, Fitratul Indah Safira Indah Septia Ningsih Indah Tri Handini Indri Syukra Innes Andriani Iryani Iryani Ismathul Dinny Jasmine, Alifa Jhora, Fadhila Jhora, Fadhila Ulfa Jhora, Fadhilla Ulfa Kasih Syirpia Khairunnisa Khairunnisa Kuwat Triyana Larasati br Ginting, Putri Zulvia Lestra, Dila Ayu Letmi Dwiridal Lidya Agraini Lucya Sinurat Lusi Oktavia masril masril Masril Masril Masril Masril Masril Masril Masril Masril Melani Alvino Miftahurrahmah Miftahurrahmah, Miftahurrahmah Muhammad Ikmal Muhammad Rivai Murtiani Murtiani Murtiani Murtiani Mustika, Dian Putri mutia faizah apriani Mutia Risma Mutia Yussavel Navis Nabila, Aliya Nadia Ardianti Nadia Ramadhanty Nadila Putri Bungsu Nadya Aztifa Nadya Yunestika Nawiyah, Nawiyah Nazifah, Naurah Nia Nursurila Nidya Yulfriska Nidya Yulfriska Novelia Prima Nur Anisa Nur Sahfitri Nurhasanah Nurhasanah Nurhijjah Tiur S Nurmala Sari Lubis Oktavia, Vini Onny Gustira Pakhrur Razi Pertama, Indri Saputri Pratama, Rayvol Dion Pratiwi Mailisa Prima Nora Ananda Puput Mulya Sari Pusri Mela Putra Adil Putra, Amali Putri Diana Putri Dwi Sundari Putri Rasti Ramadhani Radha Firaina Rahma Tilla Dwi Lestari Rahma Yeni Rahmadini, Fadhilla Rahmat Hidayat Rahmat Hidayat Rahmi Zulva Ramadhani, Dinda Ramli Ramli Ramli Ramli Ramli Ramli Ramli Ramli Ramli Ramli Ramli Ramli, - Rara Nur Rida M.Y Ratnawulan . Renol Afrizon Resti Novela Retna Junia Revi Febrina Sari Ria Monica Rifi Wasrika Rima Melani Putri Rio Anshari Rio Anshari, Rio Riolin Putri Artiwi Riri Jonuarti Riri Raihannil Jannah Riyasni, Selma rizka fauziah Rizki Rizki Romizah Marta Salma Amalia As Shidiq Santika, Viera Alvio Sari, Mona Berlian Septia, Zahwa Setivawani, Andrisa Shinta Kumala Silmi Hidayatullah03 Silvi Trisna Silvi Yulia Sari Siti Rahma Fitri Yani Siti Riva Darwata Slivi Yulia Sari Solly Aryza Sonia Nur Riza Sovia Yulianti Srisa Oktaweri Suci Wahyuni Suherman, Dea Stivani Suryani Fadhilah Syafri, Syafri Syafriani - - Syafriani Syafriani Syafriani Syafriani Syafriani Syafriani Syafrinaldi Syafrinaldi Syahputra , Ilham Syair Nandi Tiwi Novalia Syahari Tri Agunaisy Tria Sukma Sandi Trio Junira Fernando Ulfa Jhora, Fadhila Ulfa Jhora, Fadhilla Ully Nuraidina Ummiatul Fitri Vanessa Febta Sindani Varadila Sahanaya wahyu dilla abdullah Wahyudil Hayat wahyuni hafnisyah Wahyuni Satria Dewi Widara, Rofifah Windri Suci Gaitari Yeni Mustika Sari Yogi Putra Yohandri Yohandri Bow Yolvi Oktaviani Yona Sri Mantia Yosi Febriani Yudha, Fauzan Syafril Yulhendri Yulhendri Yulia Febrina Yulia Sari, Silvi Yulkifi Yulkifi Yulkifli Yulkifli Yulkifli Yulkifli Yulkifli Yulkifli, Y Yunita Ela Saputri Yuri Yanti Yurnetti Yurnetti Yurnetti Yurnetti Yurnetti, Yurnetti Zakiya, Zara Zara Zakiya Zoni, Muhammad Ari Zulhendri Kamus Zulma, Degito