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All Journal Jurnal Kybernan JAM : Jurnal Aplikasi Manajemen Journal of English and Arabic Language Teaching Jurnal Riset Kimia JAKU (Jurnal Akuntansi & Keuangan Unja) (e-journal) SOSIOLOGI NUSANTARA jurnal niara Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Kesehatan Komunitas Upajiwa Dewantara : Jurnal Ekonomi, Bisnis dan Manajemen Daulat Rakyat Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Teknologi Pendidikan AGROMIX Acintya Sospol : Jurnal Sosial Politik Jurnal Akuntansi Kompetif JCOSE Jurnal Bimbingan dan Konseling INFORMASI (Jurnal Informatika dan Sistem Informasi) Jurnal Buana Akuntansi Jurnal Manajemen Bisnis Eka Prasetya JIEB : Jurnal Ilmiah Ekonomi Bisnis Indonesian Journal of Law and Economics Review International Journal Of Science, Technology & Management (IJSTM) Mosharafa: Jurnal Pendidikan Matematika International Journal of Economics, Management, Business, and Social Science Silampari Journal Sport PUBLIKA : Jurnal Ilmu Administrasi Publik International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) International Journal of Science and Society (IJSOC) Majalah Teknik Simes Jurnal Multidisiplin Madani (MUDIMA) Jurnal Amanah Kesehatan jurnal administrasi politik dan sosial Jurnal ABDI MERCUSUAR Berita Kedokteran Masyarakat Jurnal Akuntansi Trisakti Jurnal Pengabdian Masyarakat Tapis Berseri Indonesian Journal of Society Development (IJSD) Junior Medical Journal Jurnal Ekonomi, Teknologi dan Bisnis HISTORICAL: Journal of History and Social Sciences Jurnal Informatika Ekonomi Bisnis Setyaki : Jurnal Studi Keagamaan Islam SOSIO KONSEPSIA: JURNAL PENELITIAN DAN PENGEMBANGAN KESEJAHTERAAN SOSIAL Bagimu Negeri : Jurnal Pengabdian Kepada Masyarakat ICONESTH PEDAMAS (Pengabdian Kepada Masyarakat) Jurnal Pengabdian Masyarakat dan Riset Pendidikan Gudang Jurnal Pengabdian Masyarakat Khadem: Jurnal Pengabdian Kepada Masyarakat ARUS JURNAL SAINS DAN TEKNOLOGI Jurnal Pendidikan & Pengajaran Jurnal Kimia Unand International Health Sciences Journal PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC) Hikamatzu Journal of Multidisciplinary Research Akademika Fortech : Journal of Information Technology Ameena Journal Jurnal Ilmiah Manuntung: Sains Farmasi dan Kesehatan International Journal of Management, Economic and Accounting Menulis: Jurnal Penelitian Nusantara Sinergi : Jurnal Ilmiah Multidisiplin Jurnal Akuntansi dan Sistem Informasi Jurnal Ekonomi Kuantitatif Terapan Jurnal Kesehatan
Afrizal
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Penerapan Algoritma K-Means Clustering pada Mall XYZ Menggunakan Teknik Data Mining Asto Purwanto; Ichsan Ibrahim; Afrizal; Hendra Gunawan
INFORMASI (Jurnal Informatika dan Sistem Informasi) Vol 17 No 2 (2025): INFORMASI (Jurnal Informatika dan Sistem Informasi)
Publisher : LPPM STMIK Indonesia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37424/informasi.v17i2.451

Abstract

Kemajuan dalam teknologi data mining membuka peluang signifikan bagi organisasi untuk mengambil keputusan yang berbasis pada data, terutama dalam mengungkap pola perilaku pelanggan. Studi ini bertujuan menerapkan algoritma K-Means Clustering guna melakukan segmentasi pelanggan di Mall XYZ, dengan fokus pada dua variabel kunci: pendapatan tahunan dan skor belanja. Pendekatan ini memungkinkan pihak manajemen mall merancang strategi pemasaran yang lebih terarah dan efisien. Dataset yang digunakan telah melalui proses normalisasi menggunakan Standard Scaler, sehingga memastikan kedua fitur berada dalam skala yang sebanding. Jumlah klaster optimal ditentukan melalui metode elbow berdasarkan nilai inertia, yang menghasilkan lima kelompok pelanggan. Hasil analisis mengungkap keberadaan segmen pelanggan bernilai tinggi yaitu mereka yang memiliki pendapatan dan frekuensi belanja tinggi yang memberikan kontribusi besar terhadap pendapatan mall. Di sisi lain, juga ditemukan segmen dengan potensi pengembangan, seperti pelanggan berpendapatan tinggi namun jarang berbelanja, yang dapat dimaksimalkan melalui pendekatan pemasaran yang tepat. Analisis centroid setiap klaster memungkinkan perancangan strategi khusus, seperti program loyalitas untuk pelanggan premium, promosi produk eksklusif, atau insentif harga bagi segmen yang sensitif terhadap biaya. Secara keseluruhan, penelitian ini menunjukkan bahwa K-Means Clustering efektif dalam mengelompokkan pelanggan berdasarkan pola konsumsi, sehingga memberikan dasar strategis untuk meningkatkan pendapatan dan memperkuat loyalitas pelanggan.
PEMBERDAYAAN KELOMPOK PEREMPUAN DALAM CONTINUITY OF CARE PADA IBU HAMIL BERISIKO TINGGI DI KECAMATAN SUNGAYANG KABUPATEN TANAH DATAR DEVI SYARIEF; DELVI HAMDAYANI; Afrizal; Winda Listia Ningsih; Nurleni; Eliwarni
JURNAL ABDI MERCUSUAR Vol 5 No 2 (2025): JURNAL ABDI MERCUSUAR
Publisher : LPPM Universitas MERCUBAKTIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36984/9165gk92

Abstract

Latar Belakang : Kematian ibu masih menjadi permasalahan kesehatan masyarakat yang serius dan sebagian besar dapat dicegah melalui deteksi dini serta penanganan kehamilan berisiko secara berkesinambungan. Di Kecamatan Sungayang Kabupaten Tanah Datar, terjadi peningkatan kasus kehamilan berisiko tinggi, sementara keterlibatan masyarakat dalam pemantauan ibu hamil masih terbatas. Kegiatan pengabdian masyarakat ini bertujuan untuk memberdayakan Kelompok Perempuan Bundo Kanduang dalam pelaksanaan continuity of care pada ibu hamil berisiko tinggi melalui peningkatan pengetahuan, keterampilan, dan kemampuan manajemen berbasis siklus aksi empat langkah. Metode: Metode pelaksanaan yang digunakan meliputi pelatihan kelas, simulasi, dan pendampingan lapangan, serta fasilitasi jejaring lintas sektor dengan Puskesmas, RS PONEK, PMI, dan pemerintah setempat, termasuk pembentukan kelompok pendonor darah. Evaluasi dilakukan menggunakan pre-test dan post-test untuk menilai perubahan pengetahuan, sikap, dan peran kader. Hasil: Kegiatan pengabdian ini dilaksanakan pada tanggal 12 November 2025, hasil kegiatan menunjukkan peningkatan pengetahuan kader dari 41,1% menjadi 88,23%, peningkatan sikap positif dari 41,17% menjadi 82,35%, serta peningkatan peran kader dalam penanganan komplikasi dan kegawatdaruratan obstetri dari 33,3% menjadi 73,3%. Kegiatan ini membuktikan bahwa pemberdayaan kelompok perempuan berbasis masyarakat efektif dalam mendukung pelaksanaan continuity of care pada ibu hamil berisiko tinggi.
Pengaruh Good Corporate Governance, IOS, Intellectual Capital, dan Financial Distress terhadap Kualitas Laba Nurmaida Palentin Panjaitan; Afrizal; Misni Erwati
Jurnal Akuntansi dan Sistem Informasi Vol. 1 No. 2 (2026): Edisi Januari-Maret
Publisher : Pustaka Bangsa Indonesia

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

Abstract

Penelitian ini menganalisis pengaruh Good Corporate Governance (GCG), Investment Opportunity Set (IOS), Intellectual Capital (IC), dan Financial Distress (FD) terhadap kualitas laba perusahaan sektor energi yang terdaftar di Bursa Efek Indonesia periode 2021–2024. Pendekatan kuantitatif digunakan dengan data sekunder dan purposive sampling, menghasilkan 47 perusahaan (188 observasi). Kualitas laba diukur berbasis akrual dan FD diproksikan dengan Altman Z-Score. Analisis regresi linier berganda menunjukkan variabel GCG, IOS, IC, FD, dan interaksi IOS×FD berpengaruh simultan signifikan (Sig. 0,000) dengan koefisien determinasi 59,0%. Secara parsial, GCG dan IC berpengaruh negatif signifikan, FD berpengaruh positif signifikan, sedangkan IOS dan interaksi IOS×FD tidak signifikan pada taraf 5%. Hasil ini menegaskan bahwa tata kelola, kesehatan keuangan, dan pengelolaan modal intelektual berperan dalam menentukan kualitas laba perusahaan energi.
Analysis of Macroeconomic Variables on the Existence of Inflation in Indonesia Using the Vector Error Correction Model Approach Afrizal
Jurnal Ekonomi Kuantitatif Terapan Vol. 17 No. 1 (2024): Vol. 17, No. 1, Februari 2024 (pp.1-154)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEKT.2024.v17.i01.p02

Abstract

This research investigates the impact of macroeconomic variables, namely money supply,exchange rate, interest rate, and the joint stock index, on inflation in Indonesia. Employing theVector Error Correction Model (VECM) dynamic model approach, the study reveals a long-termrelationship among each variable (Inflation Rate, Jakarta Composite Index, Interest Rate,Exchange Rate, and Money Supply). Granger Causality Test results indicate a unidirectionalrelationship of interest rate and money supply variables to inflation, interest rate to JakartaComposite Index, and money supply to the exchange rate. Conversely, there is a bidirectionalrelationship between exchange rate and inflation variables. In the short term, Interest Ratesignificantly and positively influences inflation, whereas, in the long term, it exhibits a negativeand insignificant effect. Money supply, in the long run, significantly and positively affects theinflation rate. This study stands out in the macroeconomic literature due to its distinctive choiceof variables and the dynamic model employed.
The Effectiveness of the Roni App in Enhancing the Resilience of Tuberculosis Patients Permana, Roni; Afrizal; Yunus, Faisal; Bachtiar, Adang
Jurnal Kesehatan - STIKes Prima Nusantara Vol 15 No 3 (2024): Jurnal Kesehatan Volume 15 Nomor 3 Tahun 2024
Publisher : LPPM Universitas Prima Nusantara Bukittinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35730/jk.v15i3.1208

Abstract

Tuberculosis (TB) remains a significant global health burden, requiring not only adherence to treatment regimens but also robust psychological resilience for successful recovery. This study evaluated the efficacy of the Roni application, a novel technology-based intervention designed to enhance resilience among TB patients. Employing a quasi-experimental design, 60 TB patients were randomized into an intervention group (n=30) and a control group (n=30). The intervention group utilized the Roni application for one month, while Patients in the control group received standard care. Resilience was assessed at baseline and post-intervention using the Brief Resilience Coping Scale (BRCS). Results demonstrated a statistically significant improvement in resilience scores among participants in the intervention group compared to the control group (p < 0.05). By providing tailored educational resources, motivational support, and opportunities for emotional processing, the Roni application appears to enhance resilience in TB patients effectively. These findings align with theoretical frameworks of stress adaptation and self-efficacy. This study contributes to the growing body of evidence supporting the potential of technology-based interventions to address the psychosocial needs of TB patients and improve treatment outcomes. Future research should investigate the long-term sustainability of these effects and explore the generalizability of this intervention across diverse populations.
STRATEGI PENGURANGAN FOOD WASTE DI RUMAH SAKIT Afrizal; Nila, Kurniasari Fuadiyah; Sarita, Rahmawati Irma
Jurnal Kesehatan - STIKes Prima Nusantara Vol 16 No 3 (2025): Jurnal Kesehatan Volume 16 Nomor 3 Tahun 2025
Publisher : LPPM Universitas Prima Nusantara Bukittinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35730/jk.v16i3.1319

Abstract

Food waste in hospitals is a serious problem that impacts healthcare efficiency, environmental sustainability, and patient well-being. Food waste in hospitals mainly comes from plate waste, which is caused by factors such as food quality, patient diet, and suboptimal food distribution systems. This study aims to assess effective strategies in reducing food waste in hospitals through a systematic review of 12 relevant studies. The method used a systematic literature review with the PRISMA approach, identifying key themes that included determinants of food waste, intervention strategies, and implementation challenges. The results showed that a Life Cycle Assessment-based approach, improved menu design, staff education, and implementation of waste monitoring system were effective in reducing food waste. However, the main challenge lies in the low institutional awareness and lack of binding regulations. Therefore, supportive policies and cross-sector collaboration are needed to create more efficient and sustainable food waste management system in hospitals.
THE EFFECT OF TALKING STICK TECHNIQUE ON STUDENTS’ SPEAKING ABILITY Nurdiana; Zelly Putriani; Afrizal; Salsabila Zahra
Journal of English and Arabic Language Teaching Vol. 17 No. 1 (2026): J/E/A/L/T (June)
Publisher : State Islamic University of Sultan Syarif Kasim Riau

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

Abstract

This study aimed to determine the effect of using the Talking Stick technique on the speaking ability of the eighth-grade students at SMPN 9 Pekanbaru. The researcher used a quantitative method with a quasi-experimental research design in this study. The population of this study was the eighth-grade students which had the total was 348 students. The researcher used convenience sampling to obtain samples. The sample in this study was 77 students from two classes: 37 students in the experimental class (VIII.5) and 40 students in the control class (VIII.8). In collecting the data, the researcher used an oral test as a pre-test and post-test to determine students' speaking ability. The data analysis technique was the T-test using the SPSS 23 version. The researcher found that sig. (2-tailed) was 0.000. It can be stated that 0.000.
Co-Authors Abu Hasan Asy'ari Adang Bachtiar ADIF, RIANDY MARDHIKA Ady Muzwardi Afri Hajiansyah , Thendy Afriani S Ahlul Fikri Ahmad Solihin Akmaluddin Akmaluddin Al Faraby, Ahmad Farhan ALFI SYUKRI RAMA, ALFI SYUKRI Amiarno, Yudi Amna, Hayatul Andani Eka Putra Anggri Yulia Fitri Annisa Dewi P Aprilla, Maya Ardansyah Arf, Nur Azizah aris Asianna Martini Simarmata Asto Purwanto Asyura, Khairun Bardan, Fadhilah Brilian Salsabila, Cherin Budiharjo Budiharjo Christovorus Sintong Situmorang Claudie Tiofanny Crysanda Putri, Bunga Daniya Davit Long Edisyah Dedi Adha Defitriani, Anggun Defriman Djafri DELVI HAMDAYANI Desma Erica Maryati Manik Devi Syarief Dhea Oktaviani Putri Dian Furwasyih Dian Setyorini Dimas Bagaskara Dinda Dwi Putrianti Donny Setiawan Dwi Budi Santoso Dwi Rohmawati Khasanah Efendi, Zulham Eko Martono Eliwarni Elsa Zahara Afrina Enggar Diah Puspa Arum Ernita Arif Ety Aprianti Eza Fitria, Nila Eza Yusnela Fadhila Annisa Afnel Fadhilah Fadil Irada Akram Fadlurrahman Faisal Yunus Fakhrur Rizal FAKRURRADHI Fatahillah, Irfan Femi, Nur Ferdian Achsani Feriyanti Firmansyah, Dino Fitria Alisa Fredy Olimsar Gegoh Ananda Hafifah, Nurul Hajirah Halisah Suriani Hamdiah Handayani KR Hardianti, Haliza Hayati, Ainul Helmi HENDRA GUNAWAN B11211055 Hendry Andry Herlambang, Albert Hery Riyanto Hilal Al Ambia Ichsan Ibrahim Ida Farida Idham, Irhamillah idkham Ilham Wahyudi Imelia Putri Indah Afrianti Indraddin Intan Silviana Irfan Afrinal Irwan Syaputra Ises Reni Isratul Aini Jaka Sulistia Jefri Jodi Setiawan Joni Tandi, Joni Jufri Sani Akbar Juhari Kamarullah, Nugraha Kholid Hidayatullah Kontesa, Meria Kustiawan Ladipin Lenni Sastra Lhokweng, Emier Liany Alhamda Lilik Sulistyowati Linda Wahyu Marpaung Lisye Magdalena Liur Liver Nando Sng, Evin Lola Despitasari M. Duskri M. Rizal Dika Putra Mahdi Mai Efdi Maisarah Marzuki, Fakrurradhi Masni Hayati Masrul Djalal Maulan Aklil Mauliza, Nurul Maya Trisiswati Mesra B MIFTAHUL JANNAH Milandry, Anggraini Dwi Misni Erwati Mohamad Makrus Moriana Kurnia, Rizki Muhammad Donni Muhammad Murtado Muhammad Yassir Muhibussailin Mukti Dian S Mulyati , Sri Muthia, Gina N. Rachmadanur Nadia Sri Rezeki Nadila Aprilia Nadira Nela Safelia Nila, Kurniasari Fuadiyah Norman Ferdinal Norman Ferdinal Nur Wahyuni Nurbaiti Nurdiana Nurleni Nurleny, Nurleny Nurmaida Palentin Panjaitan Nursyirwan Effendi, Nursyirwan Nurvela Panca Tuah Tuha Parwati, Wiwin Dyah Ully Permana, Roni Pesta Gultom Petrus Loo Prasetya, Arnando Pristiyono Putra, Dios Nugraha Putri Hadisti Khairani Putri Nelly Syofiah Rahmad Firdaus Rahmat Efendi Rahmi Vika Ulia Ramadani, Mery RATNA LESTARI Razali, Saidaturrahmah Reni, Ises Revan, Revan Arfian Reynol Devryonda Ria Desnita Rio Sahputra Riski Hernando Romli RR. Ella Evrita Hestiandari Rusnam Saidaturrahmah, Saidaturrahmah Salsabila Zahra sandra dewi Sarita, Rahmawati Irma Sawaluddin Sawaludin Septri Larasati Siswati, Hermaini Siti Mayang Sari Siti Zalikha Situmorang, Irvan Rolyesh Sri Mulyati Sri Rezeki Sri Setiawati Suhardi Suhardi Surati Ningsih Suryati Susanti Syahputra Syawaluddin Symon, Denas Tarigan, Herri Novita Tien Wahyu Handayani Ula, Multazimah Umi Fitri Lestari Valensi Kautsar, Valensi Vivi Silawati Wargianto Wasiah Sufi Weny Amelia, Weny Widalicin Januarty WIJI LESTARI Wiljan Atfentia Kotngoran Winda Listia Ningsih Wiralestari Wirawan W WISANGGARA, RANGGA Wiwik Tiswiyanti Wiwik Tiswiyanti Wulan Sari, Yane Oktavia Yossarika Yuliana, Desi Yusriana Yusriana, Yusriana Zelly Putriani