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All Journal Teknosains: Media Informasi Sains dan Teknologi Profesi Pendidikan Dasar Jurnal Matematika Sains dan Teknologi Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika International Journal of Computing Science and Applied Mathematics JURTEKSI Dedication : Jurnal Pengabdian Masyarakat JURNAL PENDIDIKAN MIPA Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal IKA PGSD : Ikatan Alumni PGSD UNARS Jurnal Pendidikan dan Kewirausahaan G-Tech : Jurnal Teknologi Terapan JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi As-Sidanah : Jurnal Pengabdian Masyarakat Indonesian Community Journal Dedication : Jurnal Pengabdian Masyarakat KOPEMAS
Darsih Idayani
Universitas Terbuka
Religion Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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Optimization of Public Health Centers Location in Bandar Lampung Using Integer Linear Programming Efiyanti, Rizka; Idayani, Darsih
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7302

Abstract

Public health centers are the primary healthcare services that play an essential role in public health services. Therefore, adequate facilities are needed to ensure that every individual receives proper healthcare services. Bandar Lampung City, the capital of Lampung Province, has a population of approximately 1,100,109 people. According to data from BPS (Statistics Indonesia), Bandar Lampung has a high life expectancy rate in Lampung, reaching 74.53%. To further improve this percentage, efforts are being made to ensure the equitable distribution of healthcare facilities across all regions of Bandar Lampung. This study aims to determine the optimal locations and number of public health centers in Bandar Lampung. Optimization is carried out using integer linear programming with the objective function of minimizing the number of public health centers while considering travel time and the maximum patient capacity each public health center can accommodate. The optimization model is formulated based on the set covering problem model and solved using the branch and bound method with LINGO software. The results indicate that the optimal number of public health centers needed to achieve an equitable distribution in Bandar Lampung is 43, covering 20 districts. This number is expected to fulfill the goal of ensuring equitable access to healthcare services through public health centers in Bandar Lampung.
A SIAR Model Approach to the Impact of Mudik Tradition on Covid-19 Transmission in Indonesia Idayani, Darsih; Tarigan, Asmara Iriani; Kharis, Selly Anastassia Amellia; Kurniawati, Heny
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7308

Abstract

In Indonesia, on March 2, 2020, the government announced the first case of Covid-19. Preventing the COVID-19 spread in Indonesia is challenging because the people are very diverse, and not everyone has the same understanding of the transmission of COVID-19. In addition, the Indonesians has mudik tradition, going home yearly on Eid al-Fitr. This study developed an epidemic model of Covid-19 spread SIAR by adding migration factors to represent the mudik tradition. The disease-free equilibrium point, the endemic equilibrium point, and its stability were determined. Numerical simulations were done using Covid-19 transmission data to analyze the trend of symptomatic and asymptomatic infected subpopulations. The results show that the dynamic characteristics of Covid-19 cases were semi-stable in compartments S, I, and A. This condition means that S, I, and A will rise at a certain time. In a disease-free situation, the susceptible subpopulation S is stable at a certain value. At the same time, other subpopulations are stable at almost zero and at zero. The susceptible subpopulation S in a disease-free situation is larger than during an epidemic. The number of people in disease-free conditions is smaller than those in epidemic conditions. In addition, migration at a certain level can increase the spread of Covid-19.
Eksplorasi Kalkulus Integral dalam Mengukur Volume Benda Hasil Rotasi Kurva Sederhana Berbantu Geogebra Lisma Dian Kartika Sari; Zainul Munawwir; Darsih Idayani
JURNAL PENDIDIKAN MIPA Vol. 15 No. 4 (2025): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v15i4.3518

Abstract

Kalkulus integral merupakan salah satu komponen utama dalam kalkulus yang memiliki peran signifikan dalam berbagai penerapan matematis, salah satunya dalam menghitung volume benda putar. Penelitian ini bertujuan untuk mengeksplorasi penerapan kalkulus integral dalam menghitung volume benda hasil rotasi kurva sederhana dengan memanfaatkan perangkat lunak Geogebra sebagai alat bantu visualisasi. Metode penelitian yang digunakan adalah deskriptif-eksploratif dengan langkah: (1) menentukan fungsi dan interval yang akan dianalisis , (2) menghitung volume secara analitik menggunakan metode integral, (3) memodelkan kurva dan rotasi dalam Geogebra 3D, serta (4) membandingkan hasil perhitungan dengan estimasi visual yang ditampilkan Geogebra. Beberapa fungsi yang digunakan dalam penelitian ini adalah y = x2, y = 2x+1, dan  y = sin(x) dengan rotasi terhadap sumbu-x maupun sumbu-y. Hasil penelitian menunjukkan bahwa nilai volume yang diperoleh melalui Geogebra sangat mendekati hasil analitik, dengan selisih kurang dari 1%. Visualisasi tiga dimensi yang dihasilkan Geogebra terbukti efektif dalam memperkuat pemahaman konsep integral, karena peserta didik dapat mengamati bentuk nyata dari volume benda putar dan memverifikasi hasil perhitungan integral. Simpulan dari penelitian ini adalah bahwa integrasi antara metode analitik dan bantuan Geogebra tidak hanya dapat meningkatkan akurasi, tetapi juga memperkuat aspek visual dan konseptual dalam pembelajaran kalkulus.
ASSISTANCE IN ENTREPRENEURSHIP DEVELOPMENT TUTORING "LESSON-JA" IN SUKAGALIH VILLAGE, MEGAMENDUNG DISTRICT, BOGOR REGENCY, WEST JAVA Muna, Siti Umamah Naili; Tarigan, Asmara Iriani; Herlinawati, Elin; Idayani, Darsih; Hidayat, Wahyu; Septiani, Pani
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 8 No. 1 (2024): MARET
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v8i1.2246

Abstract

The purpose of this service is to provide assistance in entrepreneurial development to students as LESSON-JA tutoring owners. LESSON-JA tutoring have the potential to be developed so that they can become more well-managed tutoring considering that this tutoring is needed by local residents and residents in other villages in learning assistance for students to learn from home. The method used is Participatory Learning through participatory in partners with discussion, practice and demonstration materials. Results Partner assistance has succeeded in determining good management strategies related to tutoring curriculum, calistung learning materials, good management strategies related to human resources and marketing, and completing LESSON-JA tutoring facilities and infrastructure. In addition, online mentoring is carried out to discuss the initial tasks that have been done by partners. The discussion of LESSON-JA tutoring assignments includes how to arrange a lesson schedule on the template provided, fill in student progress cards, and use Google Drive. Other additions such as assignment files are merged in the LESSON-JA tutoring management document. With the availability of LESSON-JA tutoring management documents and LESSON-JA lessons that have been equipped with learning media (books and teaching aids) and classroom facilities, partners have shown progress from mentoring and achieving entrepreneurial change outcomes in a more managed direction, namely from tutoring to tutoring. Other additions such as task files are merged in the LESSON-JA management document. With the availability of LESSON-JA tutoring management documents and LESSON-JA tutoring that have been equipped with learning media (books and teaching aids) and classroom facilities, partners have shown progress from mentoring and achieving entrepreneurial change outcomes in a more managed direction, namely from tutoring to tutoring.
Co-Authors Agatha Anggraeni Dewi Agus Firanto Asmara Iriani Tarigan Asmul Faisi Binsar Samosir Efiyanti, Rizka Elin Herlinawati Hasoloan Siregar Heny Kurniawati Herlinawati, Elin Idah, Linatul Af Irma Noervadila Lisma Dian Kartika Sari Lisma Dian Kartika Sari Lisma Dian Kartika Sari Lisma Dian Kartikasari Muna, Siti Umamah Naili Nur Hasanah Nuril Firdausia Puspitasari, Yesi Ranindya Masyarah Gustiary Selly Anastassia Amellia Kharis Septiani, Pani Siregar, Hasoloan Subchan Subchan Sumartono Sumartono Sumartono Susanti Tefa Tarigan, Asmara Iriani Tri Astindari Ummi Khairiyah Wahyu Hidayat Yesi Puspitasari Yesi Puspitasari Zainul Munawwir Zainul Munawwir