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All Journal International Journal of Electrical and Computer Engineering International Journal of Informatics and Communication Technology (IJ-ICT) CAUCHY: Jurnal Matematika Murni dan Aplikasi SEMIRATA 2015 Annual Research Seminar JPSriwijaya Science and Technology Indonesia Jurnal Penelitian Sains BAREKENG: Jurnal Ilmu Matematika dan Terapan Justek : Jurnal Sains Dan Teknologi Teorema: Teori dan Riset Matematika QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian Magister Pendidikan IPA Jurnal Gema Ngabdi Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Journal of Applied Science, Engineering, Technology, and Education Griya Journal of Mathematics Education and Application Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) International Journal of Science and Society (IJSOC) Uninus Journal of Mathematics Educations and Science (UJMES) Jurnal Pepadu Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Matematika Integratif Aksi Kita: Jurnal Pengabdian Kepada Masyarakat

Sisca Octarina

Universitas Sriwijaya

Author-ID : 512914

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Transportation Other

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Analysis of Information Service Pricing Scheme Model Based on Customer Self-Selection Indrawati; Fitri Maya Puspita; Resmadona; Evi Yuliza; Oki Dwipurwani; Sisca Octarina
Science and Technology Indonesia Vol. 6 No. 4 (2021): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2021.6.4.337-343

This study attempts to analyze pricing schemes with monitoring cost and marginal cost for perfect substitute and quasi-linear utility functions for achieving Internet service Provider (ISP) in gaining benefit. Two types of customers analyzed, namely customers who are heterogeneous (both high-end and low-end) as well as heterogeneous customers (high-demand and low-demand) based on Flat-fee, usage-based, and two-part tariff are the three types of pricing methods employed. The results show that usage-based pricing schemes gain maximum profit optimal for heterogeneous customers (high-end and low-end), while for heterogeneous customers (high-demand and low-demand) type of pricing scheme two-part tariff obtains maximum profit optimal. The results of this study are more directed to the lemma of the perfect substitute utility function which compares the lemma of heterogeneous customers. This model was solved using LINGO 13.0 software and ISP to get maximum profit.

Set Covering Model Using Greedy Heuristic Algorithm to Determine The Temporary Waste Disposal Sites in Palembang Putra Bahtera Jaya Bangun; Sisca Octarina; Rizka Aniza; Laila Hanum; Fitri Maya Puspita; Siti Suzlin Supadi
Science and Technology Indonesia Vol. 7 No. 1 (2022): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Optimizing the facility location has a vital role in providing services to the community. This study aims to determine the Temporary Waste Disposal Site (TWDS) in Sako District, Palembang City. The distance data between each TWDS in Sako District is used to formulate the Set Covering model, consisting of the Set Covering Location Problem (SCLP) model and the p-Median Problem model. The classical approach is made by solving both models using Lingo 18.0 software. The Greedy Heuristic algorithm is used as the heuristic approach. Based on the results and discussion, Sako District consists of 4 Villages and 9 TWDS. The SCLP and p-Median Problem models with LINGO 18.0 software and the Greedy Heuristic algorithm show a difference. The study results suggest using the optimal solution resulting from the Greedy Heuristic algorithm because it can meet all requests in Sako District. Research shows that there are six optimal TWDS in Sako District. However, several locations are still not optimal, so it is recommended that there are an additional 14 new TWDS facilities in Sako District to serve all requests.

Facility Location Problem of Dynamic Optimal Location of Hospital Emergency Department in Palembang Robinson Sitepu; Fitri Maya Puspita; Ide Lestari; Indrawati; Evi Yuliza; Sisca Octarina
Science and Technology Indonesia Vol. 7 No. 2 (2022): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The Emergency Department (ED) is one part of a hospital that provides initial treatment for patients who suffer from illness and injury, which can threaten their survival. The importance of integrated care in the ED is one of the keys to successfully treating patients at an advanced level. This becomes complex because the ED works in a team consisting of various multi-disciplinary sciences and limited human resources, facilities, and infrastructure. In the City of Palembang, 23 hospitals have emergency room facilities from 18 Sub-Districts, by using the TOPSIS (Technique for Others Reference by Similarity to Ideal Solution) method to vary the distance (radius) the optimal location of the emergency department is obtained according to the number of hospitals that have emergency room facilities, namely Ilir Timur I District, Ilir Barat I District, Sukarami District, and Plaju District. Based on the formulation of the p-median model and the completion of the TOPSIS method, the order of Districts that have optimal locations from 18 Sub-Districts that have emergency department facilities in the City of Palembang is obtained.

Waste Collection Vehicle Routing Problem with TimeWindows for Route Optimization of Garbage Transport Vehicles Evi Yuliza; Bambang Suprihatin; Putra Bahtera Jaya Bangun; Fitri Maya Puspita; Indrawati; Sisca Octarina
Science and Technology Indonesia Vol. 8 No. 1 (2023): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2023.8.1.66-70

The waste collection vehicle routing problem with time windows is an optimization problem on the route of the waste transport vehicle which aims to determine the route of the vehicle by considering the travel time and windows. Garbage transport vehicles transport garbage in several work areas. This affects the optimal time and distance. The working hours of the garbage collectors are divided into two parts. The first working hours are 07.00 - 11.00 West Indonesian Time (WIT) and 16.00-20.00 WIT. The cleaning staff has a break of 5 hours. This study aims to optimize the route of waste transportation vehicles in the problem of transporting waste so as to minimize travel time and distance. Waste collection vehicle routing problem with time windows on determining the route of a garbage transport vehicle which is simulated on the problem of transporting garbage in the city of Palembang. The waste collection vehicle routing problem with the time windows model is solved with an exact approach using LINGO software. The results of this study indicate that the proposed optimization model provides optimization of the route of the garbage transport vehicle, the total travel time, and break time of the cleaning staff.

PENDAMPINGAN PEMANFAATAN APLIKASI WORDWALL SEBAGAI GAME BASED LEARNING PADA GURU-GURU SD Jurnal Pepadu; Evi Yuliza; Putra Bahtera Jaya Bangun; Robinson Sitepu; Elisa Nurnawati; Fitri Maya Puspita; Sisca Octarina; Indrawati
Jurnal Pepadu Vol. 4 No. 1 (2023): Jurnal Pepadu
Publisher : LPPM UNIVERSITAS MATARAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v4i1.2231

Wordwall adalah aplikasi berbasis web yang dapat digunakan untuk membuat media pembelajaran seperti kuis, menjodohkan pasangan, anagram, acak kata, pencarian kata dan mengelompokkan. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengenalkan aplikasi wordwall bagi guru-guru sebagai game based learning sehingga proses pembelajaran menjadi terstruktur, terarah dan menarik. Melalui kegiatan pengabdian ini, guru-guru dapat memahami aplikasi wordwall dan dapat mengaitkan dengan persoalan materi pelajaran. Pada kegiatan pengabdian kepada masyarakat ini diberikan pendampingan pemahaman aplikasi wordwall sebagai based learning sehingga proses pembelajaran menjadi menyenangkan, menarik dan inovatif. Metode yang diterapkan dalam kegiatan pendampingan ini adalah melalui ceramah dan diskusi. Kegiatan pengabdian kepada masyarakat pada guru-guru SD terdiri dari 3 tahap, yaitu pemberian materi, diskusi dan evaluasi. Hasil dari kegiatan pengabdian kepada masyarakat memberikan peningkatan pemahaman guru-guru SD terhadap aplikasi wordwall sebagai based game learning sehingga menciptakan proses pembelajaran yang bervariasi, menarik dan inovatif.

PENDAMPINGAN PEMANFAATAN GEOGEBRA UNTUK MENINGKATKAN KEMAMPUAN TEKNOLOGI INFORMASI GURU SD MATEMATIKA DI KECAMATAN PEMULUTAN DALAM MEMBUAT MEDIA PEMBELAJARAN Jurnal Pepadu; Sisca Octarina; Putra Bahtera; Jaya Bangun; Indrawati Indrawati; Fitri Maya Puspita; Evi Yuliza
Jurnal Pepadu Vol. 4 No. 1 (2023): Jurnal Pepadu
Publisher : LPPM UNIVERSITAS MATARAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v4i1.2241

Kemampuan setiap guru pastilah berbeda. Banyak guru yang belum siap dalam menghadapi perubahan proses pembelajaran termasuk dalam pembelajaran Matematika. Pembelajaran Matematika seharusnya tidak hanya menekankan pada produk akhir, akan tetapi juga berorientasi pada proses. Pembelajaran Matematika membutuhkan visualisasi yang menarik untuk meningkatkan pemahaman siswa dalam belajar. Geogebra merupakan salah satu aplikasi pendukung visualisasi dalam Matematika. Keterampilan guru dalam penggunaan software dan aplikasi untuk pengembangan media pembelajaran dan pendidikan masih sangat kurang. Teknologi penggunaan software baik yang dapat diakses bebas maupun berbayar harus dipelajari sebagai sarana pendukung kegiatan pembelajaran. Kegiatan pengabdian kepada masyarakat ini bertujuan memberikan pendampingan pemanfaatan aplikasi Geogebra bagi guru SD Matematika di Desa Pemulutan Ogan Ilir Sumatera Selatan. Kegiatan diharapkan dapat meningkatkan kemampuan teknologi informasi guru Matematika dalam membuat media pembelajaran. Metode pelatihan yang digunakan adalah metode ekspositori, presentasi, dan tanya jawab. Kegiatan ini dimulai dengan cara instalasi, pengenalan tools yang ada pada software GeoGebra, cara menggunakannya, tutorial hingga evaluasi. Jumlah khalayak sasaran adalah 15 orang guru dan tenaga pendidik di Kecamatan Pemulutan Kabupaten Ogan Ilir. Tim pelaksana kegiatan pengabdian ini terdiri dari 4 orang dosen Jurusan Matematika Fakultas MIPA Universitas Sriwijaya dibantu oleh 10 orang mahasiswa sebagai pembantu pelaksana. Kegiatan pendampingan cukup berhasil yang ditunjukkan dengan hasil evaluasi, yaitu sebanyak 85% peserta mampu menyelesaikan tugas yang diberikan. Peserta aktif dalam kegiatan pendampingan dan dapat membuat media pembelajaran Matematika interaktif menggunakan Geogebra.

Model Matematika Sederhana Pada Pemanfaatan Bayam Brazil Menggunakan Eco Enzyme Pada Lahan Pekarangan Masyarakat Desa Pulau Semambu Fitri Maya Puspita; Sisca Octarina; Evi Yuliza; Laila Hanum; Robeah Aryani; Yulia Anisawati
Jurnal Gema Ngabdi Vol. 5 No. 1 (2023): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v5i1.315

Along with the Covid-19 outbreak around the beginning of 2020, the yard is increasingly being used by the Indonesian people. Availability of land determines which commodity crops are suitable for cultivation. The wider the yard, the more variety of plants that can be planted on the land. So it is hoped that there will be a synergy from planting, with the dosage of fertilizer use, maintenance schedules until the harvest is produced according to the target with a systematic mathematical model. The selected plant is Brazilian Spinach. The choice of fertilizers and pesticides in this activity is eco enzyme, liquids that are not only useful as fertilizers and pesticides, but can also be applied in everyday life. Eco Enzyme (EE) or garbage enzyme is a liquid fermented by organic waste. EE's functions include cleaning floors, cleaning vegetables and fruit, repelling insects and cultivating plants. With that in mind, a community service program was held in the form of mentoring for Brazilian spinach cultivation that utilizes EE techniques and management with the concept of a mathematical model

Formulation of Set Covering Problem Using Myopic Algorithm and Greedy Reduction Algorithm in Determining the Location of Temporary Landfills in Semambu Island Village, Ogan Ilir Regency, South Sumatra Fitri Maya Puspita; Sisca Octarina; Laila Hanum; Chatrin Yohana Simamora; Helena Valenta Br Kemit; Evi Yuliza
Science and Technology Indonesia Vol. 8 No. 2 (2023): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2023.8.2.184-194

This study discusses Set Covering Problem (SCP) in designing the optimal temporary waste disposal site (TWDS) in Semambu Island Village using the Myopic Algorithm (MA) and Greedy Reduction Algorithm (GRA). The analysis was carried out and compared using a maximum distance of 500m and 1000m to get the best solution from two methods. The results of the p Median Problem by LINGO 13.0 software and MA with a maximum distance of 500m show the same TWDS location, namely Working Area (WA) 1, 2, 3, 4, 5, and 6 with the location of the candidate TWDS being at TWDS 2 WA 1, TWDS 1 WA 2, TWDS 2 WA 3, and TWDS 2 WA 5. For 1000m, it will be the location of the candidate’s TWDS being at TWDS 2 WA 1, TWDS WA 2, and TWDS 2 WA 3. Using GRA, results were obtained will be 4 TWDS, namely TWDS 2 Hamlet 1, TWDS 1 Hamlet 2, TWDS 2 Hamlet 3, TWDS 2, Hamlet 5. Then using GRA, 2 solutions are obtained, namely columns 2 and 5 which dominate. Column 2 nomination are Hamlets 1, 2, 3, and 6. Column 5 which dominates will be Hamlets 1, 3, 5, and 6.

PEMANFAATAN APLIKASI QUIZIZZ SEBAGAI INOVASI MEDIA PEMBELAJARAN SISTEM HYBRID SAAT PANDEMI COVID-19 BAGI GURU DAN TENAGA PENDIDIK DI DESA IBUL BESAR PEMULUTAN Sisca Octarina; Putra Bahtera Jaya Bangun; Fitri Maya Puspita; Indrawati Indrawati; Evi Yuliza
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 5 No. 1 (2022): Februari
Publisher : FKIP Universitas Mataram

Situasi pandemi Covid-19 menyebabkan proses pengajaran dan pembelajaran di tingkat sekolah dasar tidak semuanya dapat dilakukan secara daring. Daya tangkap siswa yang satu dengan siswa yang lain tidaklah selalu sama. Terlebih lagi jika proses penyampaian materi atau pembelajaran terlihat membosankan dan monoton. Salah satu cara untuk mengatasi hal ini adalah dengan menggunakan aplikasi pembelajaran berbentuk kuis atau ujian online dengan gambar dan musik yang banyak dikembangkan pada saat sekarang ini. Kegiatan pendampingan ini mengenalkan aplikasi Quizizz kepada guru dan tenaga pendidik di Desa Ibul Besar Pemulutan. Hasil kegiatan menunjukkan bahwa terjadi peningkatan pemahaman dari peserta akan penggunaan aplikasi Quizizz. Aplikasi ini dinilai cukup baik untuk diterapkan pada siswa Sekolah Dasar. Kegiatan pendampingan pemanfaatan aplikasi Quizizz sangat diperlukan sebagai inovasi media pembelajaran sistem hybrid, sehingga diharapkan dapat membantu dan mempermudah pelaksanaan proses belajar mengajar di sekolah.

Optimasi Produksi Dan Analisis Sensitivitas Menggunakan Algoritma Titik Interior (Studi Kasus: UP2K Melati, Prabumulih) Asri Kuntari; Sisca Octarina; Endro Setyo Cahyono
Jurnal Matematika Integratif Vol 11, No 1: April, 2015
Publisher : Department of Matematics, Universitas Padjadjaran

Algoritma titik interior merupakan suatu metode penyelesaian permasalahan pemrograman linear dengan mentransformasikan titik interior awal ke dalam daerah fisibel sehingga mencapai solusi optimal penyelesaian pemrograman linear. Penelitian ini bertujuan mengaplikasikan algoritma titik interior dalam menyelesaikan permasalahan optimasi produksi makanan ringan berbahan baku nanas pada UP2K Melati, Prabumulih. Keuntungan produksi dihitung dengan memperhatikan kendala bahan baku dan proses produksi. Berdasarkan hasil penelitian, diperoleh keuntungan maksimum produksi UP2K Melati sebesar Rp 710.987,00. Produk UP2K Melati yang diproduksi adalah dodol nanas sejumlah 43 kemasan/250 gram, manisan nanas sejumlah 65 kemasan/250 gram, dan keripik nanas sejumlah 128 kemasan/250 gram. Produk wajik nanas tidak direkomendasikan untuk diproduksi, karena produk wajik nanas tidak meningkatkan keuntungan produksi.

Co-Authors Adik Ahmadi Adinda Putri Ramadhany, Adinda Putri Ahmadi, Adik Ani Sahara Br. Simanjuntak Aprilia Nur Sabana Armalia, Divasanda Aryani, Robeah Asri Kuntari Asri Kuntari, Asri Ayu Nursafitri Ayu Wulandari Bambang Suprihatin Bambang Suprihatin Belly Wardhani Chatrin Yohana Simamora Destia Maharani Devi Gusmalia Juita Dewi Lisandra Dian Wahyuni Diyaz Rachmaningtiyaz Diyaz Rachmaningtyas Elisa Nurnawati Endro Sastro cahyono Endro Setyo Cahyono, Endro Setyo Evi Yuliza Evi Yuliza Evi Yuliza Evi Yuliza Evi Yuliza Evi Yuliza, Evi Fidella Oktariana Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Fitri Maya Puspita Gina Sonia Gusti Ahta Virgo Haryati Pane Helena Valenta Br Kemit Helmayanti, Rizky Hernanda, Eggyana Deri Ide Lestari Indrawati Indrawati Indrawati Indrawati Indrawati Indrawati Indrawati Indrawati Jaya Bangun Jurnal Pepadu Laila Hanum Maya Puspita, Fitri Miranda Avifana Nanang Suwandi Narasti Wulandari Ning Eliyati Novi Rustiana Dewi Nur Attina Eliza Nuraini, Anggun Oki Dwipurwani Oki Dwipurwani Prayoga, Nafisah Aura Putra Bahtera Putra Bahtera Jaya Bangun Putra Bahtera Jaya Bangun Putra Bahtera Jaya Bangun Putra Bahtera Jaya Bangun Putra Bahtera Jaya Bangun, Putra Bahtera Jaya Putra BJ Bangun, Putra BJ Rachmaningtiyaz, Diyaz Rahmadia, Putri Rama Dani, M Ardi Ramadani, Diah Putri Rani Elekta Togatorop Ranti Sawitri Resmadona Reza Andeka Rika Apriani Rima Melati Rizka Aniza Robeah Aryani Robinson Sitepu Robinson Sitepu Sabana, Aprilia Nur Sarjani, Ita Sisca Puspita Sepriliani Siti Suzlin Supadi Sugandi Yahdin Tasiah, Mawar Tri Handayani Ulandari, Mazida Venty Yolanda Fitria Yuli Andriani Yulia Anisawati YUNITA Yunita Yunita

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