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All Journal Jurnal Abdimas Mahakam Jurnal Sistem Komputer & Kecerdasan Buatan Indonesian Journal of Law and Economics Review LOSARI: Jurnal Pengabdian Kepada Masyarakat Journal of Education Research Hippocampus: Jurnal Pengabdian Kepada Masyarakat eProceedings of Applied Science Mandiri: Jurnal Akuntansi dan Keuangan Scientica: Jurnal Ilmiah Sains dan Teknologi Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Review: Journal of Multidisciplinary in Social Sciences Journal of Mathematics, Computation and Statistics (JMATHCOS) SELAYAR: Jurnal Pengabdian Masyarakat
Hidayat , Rahmat
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Implementation of the Bayesian Spatial Model for Mapping the Relative Risk of HIV Cases in Makassar City Aisyah Putri , Siti Choirotun; Aprilia Wardani Syam , Dewi; Aswi, Aswi; Hidayat , Rahmat
Journal of Mathematics, Computations and Statistics Vol. 8 No. 2 (2025): Volume 08 Nomor 02 (Oktober 2025)
Publisher : Jurusan Matematika FMIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/jmathcos.v8i2.9770

Abstract

Human Immunodeficiency Virus (HIV) remains a major public health challenge in Indonesia, including Makassar City. This study aims to estimate and map the relative risk (RR) of HIV cases in Makassar City using the Bayesian spatial Conditional Autoregressive (CAR) Leroux model. The dataset comprises the number of HIV cases and the population of each district, with covariates including distance to the city center and population density. Results of Moran's I test indicated significant spatial autocorrelation in HIV cases across Makassar City. Model selection based on the Deviance Information Criterion (DIC) and Watanabe-Akaike Information Criterion (WAIC) identified the optimal model as the CAR Leroux with an Invers-Gamma (IG) hyperprior (0.5;0.0005) and distance as a covariate, yielding the lowest DIC and WAIC values. The estimation results demonstrated that distance is negatively associated with HIV incidence. The highest RR was observed in Ujung Pandang district, while the lowest was in Biringkanaya District. These findings may provide a basis for identifying priority intervention areas and support the development of more targeted and effective HIV elimination strategies.
Product Design and Quality as Determinants of Oppo Purchase Decisions: Desain Produk dan Kualitas sebagai Faktor Penentu Keputusan Pembelian Oppo Hidayat , Rahmat; Indayani, Lilik
Indonesian Journal of Law and Economics Review Vol. 20 No. 4 (2025): November
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijler.v20i4.1345

Abstract

Background: The increasing smartphone usage in Indonesia has intensified market competition, requiring companies to optimize design, brand image, and product quality to influence purchasing behavior. Specific Background: Oppo, as one of the top smartphone brands, remains competitive despite global market fluctuations. Knowledge Gap: Previous studies provided inconsistent results on how brand image and design shape purchasing decisions. Aims: This study investigates how product design, brand image, and product quality affect purchasing decisions for Oppo smartphones. Results: Using quantitative methods with 96 respondents, findings reveal that product design and quality significantly affect purchase decisions, while brand image does not. Novelty: The study identifies quality as the dominant factor influencing consumer behavior among Indonesian smartphone users. Implications: The results suggest that manufacturers should focus on design innovation and maintain product quality consistency to sustain market competitiveness. Highlights:• Product design and quality significantly influence Oppo smartphone purchase decisions.• Brand image does not significantly affect consumer decision-making.• Quality perception is the key driver for Indonesian consumers. Keywords: Product Design, Brand Image, Product Quality, Purchase Decision, Oppo Smartphone
PENERAPAN BAURAN PEMASARAN DALAM MENINGKATKAN VOLUME PENJUALAN PADA TIMELESS COFFEE BAR Kusuma, Febrianita; Hidayat , Rahmat
Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Vol. 2 No. 6 (2024): Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi
Publisher : Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi

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Abstract

Penelitian ini menggunakan Timeless Coffee Bar yang merupakan salah satu sektor usaha yaitu coffee shop sebagai objek penelitian. Timeless Coffee Bar adalah sebuah kedai kopi yang berlokasi di Kota Metro yang menyediakan berbagai makanan berat maupun ringan dan minuman coffee maupun non coffee. Timeless Coffee Bar menghadapi volume penjualan yang berfluktuasi. Hal ini menjadi masalah yang dihadapi Timeless Coffee Bar dalam mempertahankan volume penjualannya. Rumusan masalah Timeless Coffee Bar berkaitan dengan bauran pemasaran. Hasil pembahasan penerapan bauran pemasaran pada Timeless Coffee Bar sudah dilaksanakan dengan cukup baik, namun ada beberapa strategi dari bauran pemasaran pada Timeless Coffee Bar yang perlu ditingkatkan. Saran yang diberikan kepada Timeless Coffee Bar yang perlu dipertimbangkan adalah sumber daya manusia dan proses yaitu perekrutan penambahan karwayan dibagian kasir guna memaksimalkan proses pelayanan yang cepat dan tepat saat ramai sesuai pesanan pelanggan.
PENERAPAN BAURAN PEMASARAN DALAM MENINGKATKAN VOLUME PENJUALAN PADA TIMELESS COFFEE BAR Kusuma, Febrianita; Hidayat , Rahmat
Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Vol. 2 No. 6 (2024): Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi
Publisher : Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi

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

Abstract

Penelitian ini menggunakan Timeless Coffee Bar yang merupakan salah satu sektor usaha yaitu coffee shop sebagai objek penelitian. Timeless Coffee Bar adalah sebuah kedai kopi yang berlokasi di Kota Metro yang menyediakan berbagai makanan berat maupun ringan dan minuman coffee maupun non coffee. Timeless Coffee Bar menghadapi volume penjualan yang berfluktuasi. Hal ini menjadi masalah yang dihadapi Timeless Coffee Bar dalam mempertahankan volume penjualannya. Rumusan masalah Timeless Coffee Bar berkaitan dengan bauran pemasaran. Hasil pembahasan penerapan bauran pemasaran pada Timeless Coffee Bar sudah dilaksanakan dengan cukup baik, namun ada beberapa strategi dari bauran pemasaran pada Timeless Coffee Bar yang perlu ditingkatkan. Saran yang diberikan kepada Timeless Coffee Bar yang perlu dipertimbangkan adalah sumber daya manusia dan proses yaitu perekrutan penambahan karwayan dibagian kasir guna memaksimalkan proses pelayanan yang cepat dan tepat saat ramai sesuai pesanan pelanggan.
Kesalahan Bahasa Whatshapp Messenger Mahasiswa terhadap Dosen di Perguruan Tinggi Rahmawati, Yeni; Romadani, Anggit Tiyas Fitra; Hidayat , Rahmat
Journal of Education Research Vol. 5 No. 4 (2024)
Publisher : Perkumpulan Pengelola Jurnal PAUD Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37985/jer.v5i4.1614

Abstract

Tujuan penelitian ini, yaitu (1) untuk menganalisis berbagai kesalahan berbahasa dalam penggunaan tanda baca antara mahasiswa dengan dosen melalui aplikasi Whatshapp Messenger (2) untuk menganalisis berbagai kesalahan berbahasa dalam penggunaan ejaan antara mahasiswa dengan dosen melalui aplikasi Whatshapp Messenger. Penelitiannya menggunakan deskriptif kualitatif. Dalam penelitian ini, data berisikan hasil percakapan antara mahasiswa dengan dosen melalui aplikasi Whatshapp Messenger. Sumber data penelitian ini merupakan mahasiswa program studi S-1 Pariwisata semester 4 kelas A1 dan A2. Pengambilan data dilakukan pada bulan Maret-April 2023. Penelitian ini menggunakan metode simak dan teknik catat. Hasil penelitian ini menunjukkan terdapat (1) kesalahan penggunaan huruf kapital; (2) kesalahan penggunaan tanda koma; (3) kesalahan penggunaan tanda titik; (4) kesalahan penggunaan tanda tanya; (5) kesalahan penggunaan tanda seru (!); (6) kesalahan penggunaan kata baku; (7) kesalahan penggunaan gabungan kata; (8) kesalahan tanda hubung (-). Hasil penelitian ini menunjukkan bahwa tingkat kesalahan berbahasa mahasiswa terhadap dosen melalui Whatsapp Messenger masih banyak dan perlu diperbaiki. Temuan penelitian memberikan beberapa implikasi (1) kesopanan berbicara dengan dosen harus ditingkatkan walaupun melalui aplikasi Whatsapp Messenger; (2) mahasiswa dalam menulis Whatsapp Messenger kepada dosen lebih memperhatikan penulisan kalimat efektif dan EyD.
Estimating the Relative Risk of Dengue Hemorrhagic Fever in Makassar City Using a Bayesian Spatial Localised Conditional Autoregressive Model Rahmawati; Aswi, Aswi; Hidayat , Rahmat; Palarungi Taufik, Andi Gagah
Journal of Mathematics, Computations and Statistics Vol. 9 No. 1 (2026): Volume 09 Issue 01 (March 2026)
Publisher : Jurusan Matematika FMIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/z0mxxw06

Abstract

Dengue Hemorrhagic Fever (DHF) remains a significant public health challenge in Indonesia, including in Makassar City, which reported an increase of 291 cases in 2024. This study aimed to estimate the relative risk of DHF across 15 districts of Makassar by incorporating covariates such as population density, distance to the city center, and the number of hospitals, using a Bayesian Conditional Autoregressive (CAR) Localised approach. The data were obtained from the publication Makassar City in Figures 2025, issued by the Central Statistics Agency. Spatial autocorrelation analysis with Moran’s I indicated significant clustering of DHF cases. Model selection was conducted using the Deviance Information Criterion (DIC), Watanabe–Akaike Information Criterion (WAIC), and group-level area coverage. The results showed that the best-fitting model was the CAR Localised model with distance as a covariate (M9), specified at G = 3 with hyperprior IG (1; 0.01). Distance exhibited a negative association with DHF incidence, suggesting that the farther a district is from the city center, the lower its relative risk. Among the districts, Rappocini exhibited the highest relative risk followed by Panakkukang, while the lowest risks were observed in Sangkarrang Islands. These findings provide valuable insights for designing spatially targeted DHF prevention and control strategies in Makassar City.
Co-Authors Abdul Barir Hakim, Abdul Barir Agam, Beryaldi Agusman, Yudi Aisyah Putri , Siti Choirotun Alfitra, Muhammad Alfiyani , Yusnia Fitri Anwari, Cici Muthia Aprilia Wardani Syam , Dewi Arafat Asrin Asrin Aswi, Aswi Azahra, Kamila Khairunnisa Danil Danil Erna Erna, Erna Ervandi, Ervandi Farmiansyah, Eko Fatmawati Fatmawati Fauzi , Dede Ahmad Febi Kurniawan Hafizin, Hafizin Kusuma, Febrianita Lamo, Achmad Lilik Indayani Maulana, Tan Dede Nadika , Robby Mulya Nugraha, Risman Nugroho , Setio Palarungi Taufik, Andi Gagah Pandika, Edo Prastyo, Yudi Puspitasari , Dian Rahmawati Ramadhan, Fadzri Riska Aprilina Romadani, Anggit Tiyas Fitra Rosada , Fadia Sangkala Sari, Oktaviani shara, yuni Solehudin , Sihab Akbar Yeni Rahmawati, Yeni Yusuf, Muhamad Sulaiman Nur