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All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan ULIN: Jurnal Hutan Tropis Jurnal Riset Teknologi Industri Jurnal Abdi: Media Pengabdian Kepada Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat Jurnal Layanan Masyarakat (Journal of Public Service) Journal of Multidisciplinary Applied Natural Science Jurnal Hasil Pengabdian Masyarakat (JURIBMAS) Journal of Bio-molecule Research And Engineering Aksi Kita: Jurnal Pengabdian Kepada Masyarakat Andan Jejama: Indonesian Journal Of Community Engagement
Rico Ramadhan, Rico
Departement Of Chemistry, Faculty Of Science And Technology, Universitas Airlangga
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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MODELLING CRIME RATES IN INDONESIA USING TRUNCATED SPLINE ESTIMATOR Juniar, Muhammad Althof; Fania, Azzahra; Ulya, Diana; Ramadhan, Rico; Chamidah, Nur
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 18 No 2 (2024): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol18iss2pp1201-1216

Abstract

Criminal acts are actions that violate the law and can arise from various factors such as emotions, psychological pressure, and others. Crime rate is a number that indicate the level of crime vulnerability in a certain area at a certain time. Higher crime rates correspond to increased vulnerability in an area, and vice versa. Among various forms of criminal acts, the number of criminal acts and narcotics crimes in Indonesia tends to increase in 2020 and 2021. The aim of the research is to identify the characteristics of crime rate data based on the number of decency and narcotics incidents in Indonesia using a nonparametric regression approach. This research uses a nonparametric regression method spline truncated and linear regression as comparison. It was found that West Papua Province has the highest crime rate, based on a comparison between linear regression model and truncated spline nonparametric regression model, it can be concluded that the best model is the truncated spline nonparametric regression model with a Generalized Cross Validation (GCV) of 2468.487 and a coefficient of determination of 0 .7389091, indicating that approximately 73% of the variability of the dependent variable can be explained by the independent variables included in the model.
Phytochemistry and Chemdraw : Innovative Learning Materials for Implementing the "Merdeka Belajar" Program: Fitokimia dan Chemdraw : Bahan Pembelajaran Inovatif untuk Melaksanakan Program “Merdeka Belajar Kristanti, Alfinda Novi; Aminah, Nanik Siti; Ramadhan, Rico; Haq, Kautsar Ul; Wardana, Andika Pramudya; Suhaili, Suhaili; Hariyanto, Geraldo Figo
ANDAN JEJAMA: Indonesian Journal of Community Engagement (IJCE) Vol. 2 No. 1 (2023): Indonesian Journal of Community Engagement (IJCE) ANDAN JEJAMA
Publisher : FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ijceaj.v2i1.15

Abstract

The city of Mataram, the capital of West Nusa Tenggara province, consists of 6 sub-districts and 50 sub-districts and has 28 public and private high schools. Lecturers and students of the Department of Chemistry, who are members of the community service team, on August 5th, 2023 carried out a workshop for chemistry and biology teachers in the City of Mataram. The title of the activity was "Application of Phytochemical Screening as a medium to increase the insight of Biology and Chemistry High School Teachers in Mataran City, NTB as an alternative implementation of Merdeka Belajar". The workshop was held at SMAN 5 Mataram City involving 51 chemistry and biology teachers as participants. The material provided includes Phytochemicals and the Chemdraw application. Both of these topics are given by lecturing and discussion and also complemented by practical activities. The successful of the activity is reflected in the increase in posttest scores compared to the pretest score. Evaluation of activities in the form of filling out the questionnaires by participants also reflected the participant satisfaction, in which the majority of participants gave positive answers to each question. Similar activities remain relevant and still need to be carried out, especially in areas outside Java to broaden teachers' insight
Utilization of Coconut into Virgin Coconut Oil (VCO) to Improve the Economy of the Residents of Kalibatur Village, Tulungagung Widati, Alfa Akustia; Zakki Fahmi, Mochamad; Nanik Siti Aminah; Budi Prasetyo, Antonius; Adiarto, Tokok; Rico Ramadhan
ANDAN JEJAMA: Indonesian Journal of Community Engagement (IJCE) Vol. 4 No. 2 (2025): Indonesian Journal of Community Engagement (IJCE) ANDAN JEJAMA
Publisher : FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ijceaj.v4i2.16

Abstract

The coastal community of Sine Beach, Kalibatur Village, Tulungagung, Indonesia, has long thrived on fishing activities. In response to this, a community development service explores the alternative utilization of coconut, particularly the production of Virgin Coconut Oil (VCO), as a means of economic diversification. By integrating scientific principles with local traditions, the community learned to extract VCO and create various coconut-based products. This initiative not only broadened economic horizons but also fostered environmental sustainability. The programs aims to give economic impact to residents in Pantai Sine Tulungagung.
Uji aktivitas antibakteri ekstrak propolis lebah Heterotrigona itama dari beberapa lokasi budidaya di Kalimantan Timur terhadap bakteri Propionibacterium acnes Arung, Enos Tangke; Dikarulin, Sarah Azzara; Dewi Listyaningrum, Dyah Ayu; Ananda, Bayu Susetya; Putri, Tasya Ananda; Amirta, Rudianto; Yuliansyah, Yuliansyah; Kusuma, Irawan Wijaya; Ramadhan, Rico; Rosamah, Enih; Suwinarti, Wiwin
ULIN: Jurnal Hutan Tropis Vol 6, No 2 (2022)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v6i2.7824

Abstract

Propolis merupakan produk penting bagi lebah yang banyak digunakan sebagai salah satu alternatif pengobatan alami karena mengandung senyawa bioaktif yang dapat memberikan efek positif pada tubuh. Sebagai produk yang dihasilkan lebah untuk menutupi sarangnya dan mencegah predator maupun infeksi bakteri atau virus dari luar, propolis memiliki salah satu manfaat sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui daya hambat ekstrak propolis lebah Heterotrigona itama yang berasal dari 4 lokasi budidaya (perkebunan, persawahan, hutan sekunder, dan perkotaan) di Kalimantan Timur terhadap bakteri Propionibacterium acnes atau P.acnes dengan metode difusi lubang/sumuran pada media nutrient broth (NB) dengan kloramfenikol sebagai kontrol positif dan aseton sebagai kontrol negatif. Propolis diekstrak menggunakan metode maserasi dengan larutan etanol 96% yang kemudian dibuat dalam 3 (tiga) konsentrasi yaitu 500ppm, 250 ppm, dan 125 ppm. Hasil penelitian menunjukanfitokimia dari propolis di 4 lokasi budidaya dominan mengandung alkaloid, flavonoid dan kumarin. Uji bakteri pada konsentrasi 500 ppm,propolis H.itama dari lokasi perkebunan dan persawahan tergolong dalam kategori kuat dalam menghambat pertumbuhan bakteri, dari lokasi hutan sekunder tergolong sedang, dan dari lokasi perkotaan tergolong rendah.
Edukasi Mengenai Kebutuhan dan Keinginan pada SD Negeri Antasan Besar 7 Banjarmasin Nur Anisa; Muetia Rahma; Muhammad Aldi Arrasyid; Wulan Anggraini; Rico Ramadhan
Aksi Kita: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 6 (2025): DESEMBER
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/sj55rb54

Abstract

Literasi keuangan perlu diperkenalkan kepada anak-anak sejak usia dini sebagai dasar untuk membentuk kemampuan mengelola keuangan secara bijaksana. Selain memahami pentingnya menabung, anak-anak juga perlu mengenal konsep kebutuhan dan keinginan agar mampu membedakan prioritas dalam pengeluaran sehari-hari. Kegiatan pengabdian masyarakat ini dilaksanakan di SD Negeri Antasan Besar 7 Banjarmasin dengan tujuan meningkatkan pemahaman siswa mengenai perbedaan kebutuhan dan keinginan. Metode yang digunakan adalah pendekatan kualitatif deskriptif yang dilengkapi dengan pre-test dan post-test untuk mengukur peningkatan pemahaman peserta. Hasil kegiatan menunjukkan bahwa seluruh siswa peserta memperoleh nilai sempurna pada post-test, yang menandakan bahwa penyampaian materi berjalan efektif. Program edukasi ini diharapkan dapat menumbuhkan kebiasaan positif bagi siswa dalam mengelola keuangan secara bertanggung jawab sejak usia dini.
Co-Authors A. Budi Prasetyo Abdjan, Muhammad Ikhlas Ahlan Riwahyu Habibi Ahmadi Jaya Permana Al Fatiha, Nazwa Putri Alamsyah, Jumadil Aldrisya Alfa Akustia Widati Alfinda Novi Kristanti Amirta, Rudianto Ananda, Bayu Susetya Andika Pramudya Wardana Aning Purwaningsih Ardana, M. Tara Mico Artama, Riro Iraga Atik Widiyanti Aulianitha Salsabella Baharin, Siti Nor Atika Budi Prasetyo, Antonius Dewi Listyaningrum, Dyah Ayu Dikarulin, Sarah Azzara Dinda Enos Tangke Arung, Enos Tangke Fania, Azzahra Fatiha Khairunnisa fatimah Fatimah Firdaus, Yazdaniar Fajri Halimi Handoko Darmokoesoemo Haq, Kautsar Ul Hariyanto, Geraldo Figo Hariyanto, Nova Alfian Harsasi Setyawati Hartati Hartati Hasan, Muhammad Iqbal Irawan Wijaya Kusuma, Irawan Wijaya Juniar, Muhammad Althof Kariza Makanty Kautsar Ul Haq Khoso, Mir Hasan Kurnia, Irmayanti Tri Lestari, Dinda Ayu Mahmuda, Nur Fariha Miratul Khasanah Mochamad Zakki Fahmi Muetia Rahma Muhammad Aldi Arrasyid Mulyadi Tanjung Nanik Siti Aminah Ni'matuzahroh, Ni'matuzahroh Nur Anisa Nur Chamidah Nurliana Phontree, Kiettipum Phuwapraisirisan, Preecha Pujiati Pujiati Purba, Dwiky Julius Purkan Purkan Putri, Tasya Ananda Qurrota A’yuni Rahmadani, Nisfa Amalia Rambe, M. Sofyan Sauri Rimuljo Hendradi Rosamah, Enih Rudi Kartika, Rudi Saragih, M. Setya Perdana Sholikhah, Oktaviariesta Habibatus Simbolon, Hasanal Fachri Satia Siti Wafiroh Sofijan Hadi Sri Sumarsih Sri Utami Subur P Pasaribu Suhaili, Suhaili Suwandari, Suhartini Suwinarti, Wiwin Takaya, Yoshiaki Tio Christiawan Bramayudha Tokok Adiarto Tokok Ardiarto Ulya, Diana Wardana, Andika Pramudya Wulan Anggraini Yanuardi Raharjo, Yanuardi Yuliansyah Yuliansyah