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All Journal Jurnal Sains Materi Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Journal of Degraded and Mining Lands Management The Journal of Pure and Applied Chemistry Research Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer EduChemia: Jurnal Kimia dan Pendidikan Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) SPEKTRA: Jurnal Kajian Pendidikan Sains Journal of Natural Science and Integration Dinamisia: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Electrical Engineering and Computer Science Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Edu Research : Jurnal Penelitian Pendidikan Jurnal Riset Rumpun Ilmu Tanaman

Yus Rama Denny

Department Of Physics Education, University Sultan Ageng Tirtayasa, Banten, 42435, Indonesia

Author-ID : 2456642

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Microbial exploration of the origin of the Pandeglang cocoa plant (Theobroma cacao L.) rhizosphere as potential biofertilizer N Nurmayulis; Fitria Riany Eris; Dewi Hastusi; Abdul Hasyim Sodiq; Yus Rama Denny; Dwi Ningsih Susilowati
Journal of Degraded and Mining Lands Management Vol 8, No 2 (2021)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2021.082.2611

This study aimed to determine the ability of microorganisms originating from the root ecosystem (Rhizosphere) of cocoa (Theobroma cacao L) as a potential superior to biological agents. For the experiment, soil samples were observed from the rhizosphere of cocoa plants in Pandeglang Regency. At this stage, the research was focused on finding out the extent of microbe screening results from cocoa rhizosphere soil in producing phytohormones. The results from the initial selection showed a population of Azotobacter 2.8 x 105 cfu/mL, a population of Azospirillium of 0.3 x 102 cfu/mL, and a population of Phosphate-solubilizing bacteria (PSB) 4.1 x 107 cfu/mL. In the hemolysis test conducted for 9 isolates, only 1 isolate showed a negative result. From the test of the ability to produce phytohormones showed respectively from the highest values were IAA 5.467 mg/L, gibberellin 3.768 mg/L, zeatin 1.321 mg/L, and kinetin 0.886 mg/L. The land rhizosphere of Pandeglang cocoa plant had superior potential microbes which could be used as biological fertilizers.

Pengaruh Frit Gelas Terhadap Karakteristik Keramik Film Tebal FeTiO3 dari Mineral Yarosit untuk Aplikasi Termistor NTC Yus Rama Denny
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 3, No 1 (2014): Edisi Juni 2014
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Pembuatan Dan Karakterisasi Keramik Film Tebal Berbasis FeTiO3 Dari Mineral Yarosit Untuk Aplikasi Termistor NTC. Telah dilakukan studi pembuatan dan karakterisasi termistor NTC dari bahan mineral yarosit. Bahan mineral yarosit dari alam dimurnikan dengan larutan HCl, diendapkan dengan menggunakan NH4OH dan dipanaskan pada suhu kalsinasi 700oC selama 2 jam. Pembuatan termistor NTC dilakukan dengan mecampurkan serbuk yarosit hasil pemurnian dan pengendapan dengan TiO2. Pasta termistor FeTiO3 dicetak dipermukaan alumina substrat dengan metode screen printing, kemudian dilakukan pemanasan pada suhu 500oC selama 1 jam diruangan udara dilanjutkan disinter pada suhu 1100oC selama 1 jam diruangan hidrogen. Sifat listrik keramik film tebal hasil sinter diukur pada berbagai suhu. Struktur kristal dievaluasi dengan difraksi sinar x (XRD), dan struktur mikro dievaluasi dengan menggunakan SEM (Scanning Electron Microscope). Data analisis XRD memperlihatkan bahwa seluruh keramik film tebal berstruktur heksagonal (Illiminite). Data struktur mikro dan sifat listrik memperlihatkan bahwa termistor dari yarosit memenuhi kebutuhan pasar.

PENGEMBANGAN PHYSICS STORIES UNTUK MEMFASILITASI KETERAMPILAN LITERASI SAINS PADA MATERI SUMBER ENERGI Maudi Yuliana Suryana; Yus Rama Denny Muchtar; Yudi Guntara
JURNAL SPEKTRA Vol 7, No 1 (2021): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Program Studi Pendidikan Fisika, FITK, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v7i1.179

Penelitian ini bertujuan untuk mengembangkan media pembelajaran physics stories yang dirancang untuk memfasilitasi keterampilan literasi sains pada materi sumber energi. Jenis penelitian ini menggunakan R&D (Research and Development) dengan model ADDIE (Analysis, Design, Development, Implementation, Evaluation). Data penelitian ini dianalisis dengan deskriptif kuantitatif. Hasil penilaian produk menunjukkan “sangat layak” berdasarkan penilaian ahli media sebesar 86,53%, ahli materi sebesar 80%. Sedangkan penilaian produk berdasarkan pengguna diperoleh 91,76% dengan kategori “sangat menarik” dan dapat dipahami. Maka dari itu, media pembelajaran Physics stories dapat digunakan dalam melatih keterampilan literasi sains pada materi sumber energi

Penerapan Model Pembelajaran Interactive Lecture Demontration (ILD) Menggunakan Simulasi terhadap Conceptual Change (CC) pada Materi Momentum dan Impuls Hilda Nurwianti; Yus Rama Denny; Dina Rahmi Darman
Journal of Natural Science and Integration Vol 2, No 2 (2019): JNSI
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Penelitian ini bertujuan untuk mengetahui sejauh mana model pembelajaran Interactive Lecture Demonstration (ILD) menggunakan simulasi untuk Conceptual Change (CC) pada materi momentum dan impuls, dapat mengurangi kuantitas miskonsepsi siswa pada pembelajaran momentum dan impuls. Metode penelitian yang digunakan dalam penelitian ini yaitu Quasi Eksperimental desain “kelas eksperimen dan kelas kontrol”. Subjek penelitiannya adalah siswa kelas X di SMAN 5 Kota Serang dengan teknik pengambilan sampel berdasarkan pertimbangan tertentu (purposive sampling). Sampel dalam penelitian ini adalah siswa kelas X MIPA 4 (Kelas Kontrol) dan X MIPA 5 (Kelas Eksperimen) yang berjumlah 36 siswa. Data penelitian diperoleh melalui three tier test pada materi momentum dan impuls serta hasil wawancara dengan guru SMAN 5 Kota Serang yang siswanya mengalami miskonsepsi. Tes yang digunakan berbentuk pilihan ganda sebanyak 15 butir soal. Rata-rata kemampuan siswa kemampuan siswa pada saat pre test di awal pembelajaran siswa memiliki paham konsep sebesar 7% setelah dilakukannya pembelajaran persentase paham konsep siswa meningkat menjadi 62%. Sedangkan, pada kategori miskonsepsi dari pretest sebesr 39% menurun menjadi 10%. Pada kategori Lack of Knowledge, siswa mengalamirata-rata kenaikan, karena dari banyaknya siswa yang mengalami tingkatan miskonsepsi dan error masuk pada kenaikan tingkatan yaitu menjadi Lack of Knowledge sebesar 21% menjadi 44%. Sehingga pada persentase rata-rata kategori error persentase ini kembali menurun pada saat pretest sebesar 10% dan turun pada posttest menjadi 7%. Sehingga dari nilai penurunan persentase ini dapat dikatakan bahwa miskonsepsi siswa dapat meminimalisir setelah dilakukannya pembelajaran dengan model pembelajaran Interactive Lecture Demonstration (ILD) menggunakan simulasi untuk Conceptual Change (CC) pada materi momentum dan impuls. Hasil Uji N-Gain sebesar -0,6 dan dikategorikan sebagai G-Sedang. Sehingga model pembelajaran ini dapat efektif untuk digunakan dalam meminimalisir miskonsepsi siswa pada konsep momentum dan impuls.

Pelatihan Komputer Microsoft Office dan Media Pembelajaran Animasi untuk Meningkatkan Kompetensi Guru SDIT Al Muhajirin Endi Permata; Yus Rama Denny M; Irwanto; Mohammad Fatkhurrokhman
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2021): April 2021, Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v5i2.5265

This community service activity aims to increase the competence of information and communication technology (ICT) through Microsoft Office computer training and animation learning media at the Al Muhajirin Integrated Islāmic Elementary School, Cilegon, Banten. The output of this program has an impact on the creation of teachers who are skilled in using technology in learning, trained teachers who are able to use technology especially Microsoft Office and learning animation media. In this training, DIT Al Muhajirin Cilegon Banten teachers were trained on Microsoft office and the theory and principles of animation as a learning medium. Furthermore, the training continued with intensive mentoring of the SDIT Al Muhajirin Cilegon Banten teacher to choose themes and practices for making learning animations. With the training held at SDIT Al Muhajirin Cilegon Banten, this primary school teacher who became a participant in community service has achieved this understanding of the benefits of sustainable professional development in teacher performance assessment. Teachers are able to master how to make animation media for learning using PowerPoint Microsoft Teachers at SDIT Al Muhajirin Cilegon Banten who are community service participants are trained to understand the features and functions in Microsoft PowerPoint which are used for making animation media in learning. From the results of community service activities carried out at SDIT Al-Muhajirin Cilegon Banten, it can be concluded that the assessment of the ability of participants on average is around 84.15% and have mastered and understood Microsoft office materials and learning animations.

Classification of Diseases of Banana plant Fusarium Wilted Banana Leaf Using Support Vector Machine Yus Rama Denny; Endi Permata; Lusiani Dewi Assaat
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 8, No 1 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v8i1.15893

Fusarium wilt is an important disease of various types of bananas and one of the most common diseases that causes destruction of banana plants in tropical and subtropical regions. Fusarium wilt caused by the fungus Fusarium oxysporum f.sp. cubense (FOC). As an inhabitant, invader, soil-transmitted fungus and causes wilt that colonizes xylem vessels, FOC requires penetration through the roots of the host plant, so that in its control it is necessary to try to provide protection and induction of host resistance systems in the root system. in this research.The proposed banana plant disease detection system consists of two phases, in the first phase, namely in the learning process, the images of healthy banana leaves and those affected by fusarium disease are files each measuring 640x480 pixels obtained from the results of taking a digital microscope on the plantation. PT. GGP Lampung. Next is the classification process. The method used for pattern recognition in this study is a support vector machine (SVM). Basically SVM can only be used to classify data into two classes (binary classification). To be able to apply to the problem of classifying healthy banana leaves and those affected by mild, moderate and severe fusarium disease consisting of more than two classes, a multiclass SVM classification method is applied which is built by combining several binary classifications. In the training classification process, the hyperplane variables for each classifier obtained will be stored and will later be used as data for each classifier in the testing process, in other words the training classification process is a process to find support vectors, alpha and bias from the training input data obtained. in the form of a feature vector from the image of healthy banana leaves and those with mild, moderate and severe fusarium disease (four classes). From the results of the classification stage experiment using the support vector machine one against all method, the results obtained are Class I (Healthy Banana Leaf) 90.833%, Class II (Light Fusarium Banana Leaf) 76.688%, Class III (Medium Fusarium Banana Leaf) 77.50, Class III (Medium Fusarium Banana Leaf) IV(Fusarium banana leaf weight) 95%.

IoT and transparent solar cell based automated green house monitoring system for tomato plant cultivation Yus Rama Denny; Endi Permata; Adhitya Trenggono; Vaka Gustiono
Indonesian Journal of Electrical Engineering and Computer Science Vol 22, No 1: April 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v22.i1.pp18-27

This study aimed to develop and test the feasibility of a smart greenhouse prototype media that is used as a planting medium with an automatic watering system. The method in this study was research and development using the waterfall model. In order to test the feasibility, the prototype was validated with material expert validators, media expert, and farmers. The questionnaire instrument was compiled based on Walker and Hess instrument. The results of the research found are as follows: the results of feasibility research by media experts has an average score of 4.35 with the category "very feasible", assessment by experts the material has an average score of 4.4 with the category "very feasible", and the assessment of the user has an average score of 4.06 with "feasible". The purposed controlled system of smart greenhouse and as a media for farmers was validated. Our results demonstrated that the smart greenhouse is suitable media to help farmers cultivating the tomatoes plant.

PENINGKATAN KOMPETENSI PENELITIAN TINDAKAN KELAS (PTK) MELALUI METODE PELATIHAN, PENERAPAN DAN PENDAMPINGAN BAGI GURU SEKOLAH DASAR DI JAWA BARAT DAN BANTEN Indri Sari Utami; Yus Rama Denny; Yudi Guntara
Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Vol 1 (2020): PROSIDING SEMINAR NASIONAL PENGABDIAN KEPADA MASYARAKAT - SNPPM2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.546 KB)

Abstract Classroom Action Research (CAR) is a basic need that must be done by a teacher to find problems in their class to find the right solution in order to produce effective learning. In order to support this CAR for elementary school teachers, this service activity was carried out. This service aims to motivate teachers to carry out CAR, provide understanding to mentoring, from planning the CAR to making the final report. The method of community service is training, implementing and mentoring CAR activities. All activities were carried out online during the Covid-19 pandemic. This activity was attended by elementary school teachers from West Java and Banten. The training process is carried out online by describing material about CAR and discussions until the teachers find problems in their class. After that the implementation of each CAR cycle was recorded and then sent for discussion together. Assistance in making CAR proposals, improving learning every cycle, and making the final report were carried out intensively for one month. The results of this dedication show that teachers have increased their understanding of CAR. Through the results of the questionnaire, it was found that the understanding of CAR was increased, many ideas emerged to become problems and solutions in the CAR. So that they are motivated to carry out CAR to solve other problems in their class. Abstrak Penelitian Tindakan Kelas (PTK) merupakan suatu kebutuhan dasar yang harus dilakukan oleh seorang guru untuk menemukan masalah di dalam kelasnya hingga menemukan solusi yang tepat agar menghasilkan pembelajaran yang efektif. Guna mendukung PTK ini untuk guru-guru sekolah dasar maka dilaksanakan kegiatan pengabdian ini. Pengabdian ini bertujuan untuk memotivasi guru untuk melaksanakan PTK, memberi pemahaman hingga pendampingan dari mulai perencanaan PTK sampai pembuatan laporan akhir. Metode dalam pengabdian adalah pelatihan, penerapan dan pendampingan kegiatan PTK. Seluruh kegiatan dilakukan secara online dalam masa pandemi covid-19. Kegiatan ini diikuti oleh guru-guru sekolah dasar dari Jawa Barat dan Banten. Proses pelatihan dilakukan secara online dengan menjabarkan materi mengenai PTK dan diskusi hingga para guru menemukan masalah dalam kelasnya. Setelah itu penerapan setiap siklus PTK direkam lalu dikirim untuk didiskusikan bersama. Pendampingan pembuatan proposal PTK, perbaikan pembelajaran setiap siklus, hingga pembuatan laporan akhir dilakukan secara intensif selama satu bulan. Hasil dari pengabdian ini memperlihatkan guru-guru mengalami peningkatan pemahaman mengenai PTK. Melalui hasil kuesioner didapatkan peningkatan pemahaman PTK, banyak ide yang muncul untuk dijadikan masalah dan solusi dalam PTK. Sehingga mereka termotivasi untuk melaksanakan PTK untuk menyelesaikan masalah lain di kelasnya.

Pres (Photovoltaic Renewable Energy Resources): Rancang Bangun Esp Berbasis Modul Surya 50 WP Pada Sistem Hidroponik DFT (Deep Flow Technique) Tiya Puspita; Yus Rama Denny; Ilham Akbar Darmawan
Jurnal Riset Rumpun Ilmu Tanaman Vol. 2 No. 2 (2023): Oktober : Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v2i2.1770

In agriculture with the hydroponic method of the DFT system (Deep Flow Technique), the circulation of plant nutrients must occur continuously to prevent decay in plants. Along with the many concerns due to the large electricity costs incurred to run the irrigation system for hydroponic plants, the authors hereby design a tool in the form of a submersible pump as a medium for regulating the flow of water in plants by utilizing a 50 WP PV module instead of a source of electrical energy from PLN. The method used in this research is the method of observation, literature study, design, and testing. The results of the 50 WP solar panel-based submersible pump trial show that a circuit connected to a battery at 1M Head tends to produce a stable water discharge, which is an average of 6.03 liters/minute compared to one that is not connected to a battery, which is only 5.28 liters/minute. Furthermore, the resulting water discharge affects the quality of the plants, especially in root length, number of leaves, leaf length, and leaf size. The test results are used as a reference for the comparison of expenditure costs between irrigation systems run using solar cells and those based on conventional (PLN).

ANALISIS KEMAMPUAN PEMECAHAN MASALAH SISWA SMA PADA MATERI PEMANASAN GLOBAL Rosdiana Rosdiana; Yuvita Oktarisa; Yus Rama Denny
EDU RESEARCH Vol 5 No 1 (2024): EDU RESEARCH
Publisher : IICLS (Indonesian Institute for Corporate Learning and Studies)

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

Kemampuan pemecahan masalah merupakan suatu kemampuan yang perlu di tingkatkan di berbagai tingkatan khususnya pada tingkat SMA. Dengan memiliki kemampuan pemecahan masalah yang baik tentu tidak hanya mengantarkan siswa untuk dapat memahami materi, tetapi juga menuntun siswa untuk dapat mengatasi suatu permasalahan. Penelitian ini bertujuan untuk mengetahui bagaimana kemampuan pemecahan masalah siswa SMA pada materi pemanasan global. Jenis penelitian ini adalah penelitian kualitatif dengan subjek penelitian merupakan siswa kelas X G yang berjumlah 30 siswa. 6 siswa diambil berdasarkan kriteria sedang, rendah, dan sangat rendah. Teknik pengumpulan data menggunakan tes tertulis dan pedoman wawancara. Hasil dari penelitian ini menunjukkan bahwa kemampuan pemecahan masalah siswa masih rendah Hal tersebut disebabkan oleh beberapa faktor internal dan factor eksternal. faktor internal meliputi ketidak paham siswa terhadap materi, kurangnya minat dan semangat belajar siswa, ketidak telitian siswa dalam membaca soal dan tingkat kepercayaan diri siswa terhadap kemampuan yang dimiliki. Sedangkan factor eksternal meliputi proses pembelajaran dan bentuk soal yang diberikan.

Co-Authors Abdul Hasyim Sodiq Adhitya Trenggono Adhitya Trenggono Akbar Hanif Dawam Akbar Hanif Dawam Abdullah Akbar Hanif Dawam Abdullah Andri Suherman Andri Suherman Dani Gustaman Danu Wijaya Dewi Hastusi Dewi Muliyati Dina Rahmi Darman Dwi Ningsih Susilowati Endi Permata Endi Permata Endi Permata Endi Permata Fitria Riany Eris Ganesa Antarnusa Handoyo Hartono, Rudi Herudin Herudin Hilda Nurwianti Ilham Akbar Darmawan Indri Sari Utami Irvan Akram Irwanto Isriyanti Affifah, Isriyanti Lusiani Dewi Assaat M Iman Santoso Maelani Marlo Siswahyu Masitoh Mangsur Maudi Yuliana Suryana Mohammad Fatkhurrokhman Nurmayulis Rahmat Firman Septiyanto, Rahmat Firman Rocky Alfanz romi wiryadinata Rosdiana Rosdiana Ruth Soukaning Nugrah Djati Sadaharu Hamaguchi Sinda Intandiana Siti Rohanah Suhendar Suhendar Sulaeman Deni Ramdani Syamsul Hidayat Teguh Firmansyah Teguh Firmansyah Tiya Puspita Toto Supriyanto Vaka Gustiono Yudi Guntara Yudi Guntara Yuvita Oktarisa Yuvita Oktarisa

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