Article Per Year (5 Year)
p-Index From 2020 - 2025
5.261
P-Index
This Author published in this journals
All Journal Berkala Ilmiah Pendidikan Fisika Jurnal Riset Fisika Edukasi dan Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) ORBITA: Jurnal Pendidikan dan Ilmu Fisika JURNAL PENDIDIKAN TAMBUSAI Jurnal Sehat Mandiri Poltekita : Jurnal Ilmu Kesehatan Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika Jurnal Salingka Abdimas Journal of Climate Change Society Physics Learning and Education Journal of Civil Engineering and Vocational Education Journal of Experimental and Applied Physics Abdi Humaniora: Jurnal Pengabdian Masyarakat Bidang Humaniora
Gusnedi Gusnedi
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

Published : 54 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 54 Documents
Search

 2   3   4   5   6 
Hubungan Ketersediaan dan Pendidikan Tenaga Gizi terhadap Kejadian Stunting di Sumatera Barat, Indonesia Habibi, Nur Ahmad; Gusnedi, Gusnedi; Edmon, Edmon; Yuniarti, Elsyie; Safyanti, Safyanti
Jurnal Sehat Mandiri Vol 20 No 1 (2025): Jurnal Sehat Mandiri, Volume 20 Nomor 1 Juni 2025
Publisher : Poltekkes Kemenkes Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33761/jsm.v20i1.1877

Abstract

The availability of an adequate number of qualified nutrition experts is a supporting factor for the success of nutrition programs and health transformation. The research aims to analyze the relationship between job suitability of nutrition professionals, education level, participation in training, and the competence of nutrition experts in relation to the nutritional status (prevalence of stunting) in West Sumatra, Indonesia. The study was conducted using a cross-sectional design, with a sample size of 698 nutrition professionals working in 16 districts/cities in West Sumatra. Data were collected through a questionnaire in Google Form format. This study revealed that 35.6% of nutrition professionals did not possess an active registration certificate. Around 43.9% had only completed a three-year diploma program, and 13.7% were not working in accordance with their profession. Approximately 65% of nutrition experts had not received training related to their authority, and 76.3% did not possess relevant competency certification to support their performance. There was a significant relationship between the number of nutrition professionals working in accordance with their profession, participation in training, and competency certification with the occurrence of stunting (p<0.05). The conclusion is that the higher the number of nutrition professionals working in accordance with their profession, trained, and competent, the lower the prevalence of stunting in the area. Policy measures and efforts are needed to meet the needs of nutrition experts in terms of quantity and quality in order to strengthen nutrition programs and improve the level of health in West Sumatra.
Implementation of Generative Learning Models with Probing Question Methods in Static Fluid Learning Hendini, Elvira; Akmam, Akmam; Gusnedi, Gusnedi; Sundari, Putri Dwi
Physics Learning and Education Vol. 1 No. 3 (2023): September Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v1i3.85

Abstract

Learners who cannot connect the new knowledge received with previous knowledge will find it difficult to understand learning, causing low learning outcomes. The solution offered is to apply a generative learning model with the probing question method. The purpose of the study was to determine the effect of applying a generative learning model with probing question method on the learning outcomes of students in Static Fluid material class XI SMAN 14 Padang. The type of research is Quasi Experimental. The study population was all students of class XI MIPA. Sampling using purposive sampling technique. The research sample is XI MIPA 4 class as an experimental class and XI MIPA 5 class as a control class. A written page in the shape of an objective serves as the tool. The findings revealed a substantial contrast between classes using PBL learning models with probing question techniques and classes using generative learning models with these techniques in terms of the learning outcomes of the students. When compared to the control class, the experimental class's average learning outcomes were 81, while it was 78.4. At a significant threshold of alpha = 0.05, it was determined that tcount = 8.704 and ttable = 1.995 based on the equality test of the two averages. If ttable< tcount, then H0 must be disregarded. The significance of tcount lies in the rejection of H0 and acceptance of H1, which demonstrate that the generative learning model with the probing question method has a beneficial impact on learning outcomes.
Effect of Sorbitol and Chitosan Addition on Tensile Strength and Degradation Rate of Biodegradable Plastic from Rice Bran Starch Zahra, Hayatun Nufus; Jonuarti, Riri; Gusnedi, Gusnedi; Hidayat, Rahmat
CIVED Vol. 10 No. 3 (2023): September 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i3.498

Abstract

The increasing use of plastic can cause enviromental pollution because plastic takes a very long time to decompose in the soil. Solutions that can be used to accelerate the process of plastic decomposition in the soil by replacing plastic making materials with natural polymer materials. Natural polymers are polymers produced from organic monomers, one of which is starch. Starch is one of the natural polymer materials used in the manufacture of biodegradable plastics, one of the natural materials containing starch is rice bran waste. From rice bran waste starch, bioderadable plastic can be made by adding chitosan and sorbitol by varying then succesively, namely 5:2:8, 5:3:7, 5:5:5, 5:7:3, 5:10:0, then making samples, then the samples are printed and tensile strength testing and degradation testing are carried out. From the tensile strength test results, the values obtained were 0.69 Mpa, 0.74 Mpa, 1.50 Mpa, 1.98 Mpa and 2.28 Mpa, respectively. The finel weight of the sampel after degradation is 0 gram, 0 gram, 0.0189 gram, 0.0226 gram, 0.1017 gram. It is concluded that biodegardable plastic with good tensile strength is in the variation of starch 5 grams, without sorbitol and chitosan 10 grams and for good degradation test in the variation of starch 5 grams, sorbitol 8 ml, chitosan 2 grams and variation of starch 5 grams, sorbitol 7 ml, chitosan 3 grams.
Effect of Variations in Mass Composition of TiO2/Activated Carbon Cassava Peel on Crystal Structure and Size Fauziyah, Faadhilah; Darvina, Yenni; Ratnawulan, Ratnawulan; Gusnedi, Gusnedi
Journal of Experimental and Applied Physics Vol 2 No 1 (2024): March Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i1.45

Abstract

A battery is a tool used to store electrical energy to obtain electricity so that it can be used to power remotes, cellphones, laptops, cameras and other electronic items. The working indicator of a battery is capacity, its electrochemical cycling capability depends on the anode material. In general, battery anodes are made using graphite. However, graphite has limitations, namely that it can easily cause short circuits. Because graphite has limitations, a replacement for graphite from TiO2 nanocomposites with activated carbon will be made. Nanocomposites are new materials that are formed by combining two or more compounds to produce new properties and have nanoscale dimensions. TiO2 is used because it can reduce short cycles, has good stability, high current density and can increase battery performance capacity. Activated carbon is used to expand the surface of the material to obtain a large capacitance. The activated carbon used in this article is cassava peel from unused waste in order to reduce environmental pollution and increase the economic value of the waste. The aim of this research is to produce TiO2/Activated Carbon nanocomposites to test their crystal structure and size using XRD. TiO2/Activated carbon nanocomposites were obtained using the sol-gel method. Variations in the mass composition of TiO2/Activated Carbon used are 40%:60%, 50%;50%, and 60%:40%. Based on the tests that have been carried out, the smallest crystal size was obtained with a variation of 40%:60%, namely 58.4 nm with a Tetragonal structure for TiO2 while Cubic and Rhombohedral for carbon.
Effect of The Camposition Nanocomposite Fe3O4-Graphene Oxide on Optical Properties Synthesized from Coconut Shell Charcoal Angraini, Sri; Gusnedi, Gusnedi; Jonuarti, Riri; Jhora, Fadhila Ulfa
Journal of Experimental and Applied Physics Vol 2 No 2 (2024): June Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i2.60

Abstract

This study aims to determine the effect of Fe3O4 nanocomposite composition: Graphene Oxide on the optical properties of Fe3O4 Graphene Oxide nanocomposite by obtaining the results of absorbance value, transmittance, reflectance, and band gap value based on UV-Vis test. Graphene oxide used in this study is made from biomass waste coconut shell charcoal which contains carbon elements, most of whose pores are still covered by hydrocarbons and other organic compounds and the charcoal is used as activated carbon through an activation process, then synthesized using the modified hummers method. In this study, three variations were used, namely 20%: 80%; 30%; 70%; 40%: The results show that the effect of Fe3O4-Graphene Oxide Nanocomposite Composition on coconut shell waste using a UV-Vis spectrometer, the absorbance value of each sample was obtained in the range of 200-290 nm.. In the results of gap energy research with 3 variations respectively 3.269 eV, 3.79 eV, 3.91 eV obtained that if the variation of graphene oxide is higher than the value of the energy gap produced is smaller, so the addition of graphene oxide from coconut shell waste has the effect of reducing the energy gap of graphene oxide.
Effect of Calcination Temperature of SiO2-TiO2 Composite XRD Characterization of Crystal Size Structure and Phase Putri, Sri Fany Mulya; Ratnawulan, Ratnawulan; Gusnedi, Gusnedi; Jonuarti, Riri
Journal of Experimental and Applied Physics Vol 2 No 3 (2024): September Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i3.65

Abstract

Calcination is often used to activate beneficial metal oxidation in catalysts and improve material stability. In the metal oxidation research used is SiO2-TiO2 nanocomposite because it has advantages over photocatalysts and thermal stability. One important factor that affects is the particle size and crystal phase formed during the calcination process at various temperatures. The purpose of the study was to determine the effect of calcination on changes in phase and crystal structure in SiO2-TiO2 nanocomposites. The material used for the manufacture of nanocomposites is natural silica source from coconut fiber which is burned into white ash. The ash was extracted for the preparation of silica sol by adding Tetraethyl Orthosilicate (TEOS) as a precursor synthesized by the sol gel method then, calcination was carried out with temperature variations of 700 , 800 , and 900 . After calcination, XRD characterization was carried out to obtain crystal sizes of 63.48 nm, 66.87 nm, and 73.83 nm. The phase formed is dominant in TiO2 is rutile and SiO2 is quartz and cristobalite.
Validasi E-Modul Fisika Berbasis Model Pembelajaran Inkuiri Terbimbing Pada Materi Gelombang Kelas XI SMA/MA Asyshifa Astri, Neno; Hufri, Hufri; Gusnedi, Gusnedi; Yulia Sari, Silvi
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13214

Abstract

Sesuai dengan tuntutan kurikulum 2013 yaitu terintegrasinya Teknologi Informasi dalam pembelajaran fisika, maka guru dapat membuat atau mengembangkan suatu bahan ajar. Berdasarkan analisis kebutuhan di SMAS Adabiah Padang sebagian besar bahan ajar yang digunakan berupa buku teks fisika dan lembar kerja peserta didik (LKPD) dalam bentuk cetak pula, sehingga bahan ajar tersebut kurang menunjang dalam proses pembelajaran. Salah satu solusinya dengan mengembangkan e-modul fisika berbasis model pembelajaran inkuiri terbimbing pada materi kelas XI SMA/MA. Jenis penelitian yang digunakan pada penelitian ini yaitu penelitian dan pengembangan (Research and Development). Instrumen pengumpulan data yang digunakan adalah lembar angket validasi diberikan 3 orang dosen Fisika UNP serta 2 orang guru Fisika didua SMA yang berbeda di kota Padang. Hasil dari validitas e-modul fisika sebesar 91,76% dengan kategori sangat valid. Oleh karena itu, e-modul fisika berbasis model pembelajaran inkuiri terbimbing pada materi gelombang kelas XI SMA yang dikembangkan telah valid.
Validity And Practicality of PjBL-Based Teaching Materials Environmental Pollution For Physics Phase E Rahmadini, Fadhilla; Darvina, Yenni; Gusnedi, Gusnedi; Yulia Sari, Silvi
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13528

Abstract

The purpose of this research is to test the validity and practicality of the project-based learning teaching materials that have been developed.. This research is research and development (R&D) with a model-4D development model. Data analysis uses Aiken V. The results of the validity test, gets a score was 0.89846 with valid criteria. Meanwhile, the results of the practicality test by 3 physics teachers obtained an average overall score of 93.25% using practical criteria, and the results of the practicality test by 19 students obtained an average overall score of 88.28% using practical criteria, so it can be concluded that the environmental pollution teaching materials for phase E project-based learning that have been developed have met the validity and practicality requirements and are suitable for use by teachers in teaching and for students in learning.
Validasi E-LKPD Interaktif Berbasis Model Pembelajaran Contextual Teaching and Learning pada Materi Hukum Termodinamika Annisa Wudda, Ami; Hufri, Hufri; Gusnedi, Gusnedi; Satria Dewi, Wahyuni
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13533

Abstract

Dasar pelaksanaan penelitian disebabkan bahan ajar yang digunakan guru dalam pembelajaran fisika berupa buku teks dan lembar kerja dalam bentuk cetak. Penerapan model pembelajaran dan integrasi teknologi dalam lembar kerja fisika juga belum mencapai tingkat optimal. Penelitian berfokus pada pengembangan E-LKPD interaktif berbasis model pembelajaran Contextual Teaching and Learning pada materi hukum termodinamika yang valid. Studi ini termasuk jenis penelitian dan pengembangan dengan berpedoman pada langkah terstruktur model pengembangan ADDIE. Uji validasi produk oleh 3 dosen fisika UNP. Hasil kevalidan produk diperoleh dari analisis angket validasi sebesar 83% terkategori sangat valid. Kesimpulan penelitian adalah E-LKPD interaktif berbasis model pembelajaran CTL pada materi hukum termodinamika sangat valid.
Pengaruh Bahan Ajar Fisika Bermuatan Peta Konsep Dengan Model Creative Problem Solving Terhadap Hasil Belajar Siswa Pada Materi Fluida Dinamis Kelas XI SMA Pertiwi 1 Padang Paramita, Eca; Gusnedi, Gusnedi; Hidayati, Hidayati; Yulia Sari, Silvi
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13661

Abstract

Penelitian ini bertujuan untuk menyelidiki pengaruh bahan ajar fisika bermuatan peta konsep dengan model Creative Problem Solving. Penelitian ini menggunakan metode kuasi eksperimen (quasi experimental design) dengan menggunakan Desain Postest Only . Populasi penelitian ini adalah siswa kelas XI SMA Pertiwi 1 Padang. Sampel dipilih dengan teknik cluster random sampling. Teknik analisis data yang digunakan adalah uji normalitas, uji homogenitas dan uji hipotesis. Analisis data menggunakanan program komputer SPSS v.16.0. Berdasarkan hasil penelitian ini terdapat perbedaan antara kelas eksperimen dengan kelas kontrol. Nilai rata-rata pengetahuan kelas eksperimen 78,57 lebih tinggi dibandingkan dengan nilai rata-rata kelas kontrol 72,74. Hasil pengujian hipotesis diperoleh nilai signifikansi 0,018 pada taraf signifikansi 0,05. Oleh karena itu, H1 diterima dan H0 ditolak, artinya terdapat pengaruh bahan ajar fisika bermuatan peta konsep dengan model Creative Problem Solving terhadap hasil belajar siswa pada materi fluida dinamis kelas XI SMA Pertiwi 1 Padang.
Co-Authors - Asrizal - Asrizal - Asrizal - Murtiani Abdul Azis Aditya Fahlevi Akmam Akmam Angraini, Sri Annisa Wudda, Ami Aris Alfikri Arni Sopianti Asrizal Asyshifa Astri, Neno bachtar, fitrina Dela Prawita Mulza Desnita Dini Aulia Putri Edmon Edmon Elven Hardyus Samadaya Nehe Esy Maestro Fadli Andrias Fatni Mufit Fauziyah, Faadhilah Febri Zola, Nadira Fio Adella Illahi Fitri Nisak Fitriane Salsabila Z Fozza Andresta Putri Hastil Hanifah Hendini, Elvira Hersha Hanifa Hidayati Hidayati Hidayati Hidayati Hufri Hufri Innes Andriani Ismanilda, Ismanilda Jhora, Fadhila Jhora, Fadhila Ulfa Junita, Novia Korry Nilyani Lisma Evareny Mella Roza Mely Afriani Milla Fitri, Aidina Monicha Esti Moulia Fadhilah Murtiani Murtiani Nessa Aqila Nof Putria Tenti Nur Ahmad Habibi Nur Anisa Ornella Frita Paramita, Eca Phobi Juwandari Putri Putra, Amali Putri Dwi Sundari Putri, Sri Fany Mulya Rahmadini, Fadhilla Rahmat Hidayat Rahmi Zulva, Rahmi Ramli Ramli Ratnawulan . Reni Defrianti Reni Saputri Renol Afrizon Rina Desriyenti Riri Jonuarti Safyanti, Safyanti Salwa Salsabilla Satria Dewi, Wahyuni Selvia indri ana Sepna Gitnita Silvi Trisna Silvi Yulia Sari Silvia Agustin Siti Khadijah Solly Aryza Tiara Alwafa Nissa Huang Ulfa Jhora, Fadhila Wahyuni Satria Dewi Wiwi Sartika Yasni Novi Hendri Yenni Darvina Yohandri Yos Sudarman Yulia Sari, Silvi Yuliza Noerman, Kiki Yundari, Yundari Yuni Fitria Yuniarti, Elsyie Yurnetti Yurnetti Zahra, Hayatun Nufus Zaitul Hidayat Zulhendri Kamus