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All Journal JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Jurnal Daya Matematis Delta-Pi : Jurnal Matematika dan Pendidikan Matematika Edumatsains Sinkron : Jurnal dan Penelitian Teknik Informatika Justek : Jurnal Sains Dan Teknologi JTAM (Jurnal Teori dan Aplikasi Matematika) JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Jurnal Sisfokom (Sistem Informasi dan Komputer) Zeta - Math Journal Zero : Jurnal Sains, Matematika, dan Terapan JISTech (Journal of Islamic Science and Technology) Jurnal Ilmiah Media Sisfo JURNAL MathEdu (Mathematic Education Journal) JOURNAL OF SCIENCE AND SOCIAL RESEARCH Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Symmetry: Pasundan Journal of Research in Mathematics Learning and Education M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Edugama: Jurnal Kependidikan dan Sosial Keagamaan Mawaizh : Jurnal Dakwah dan Pengembangan Sosial Kemanusiaan Jutisi: Jurnal Ilmiah Teknik Informatika dan Sistem Informasi Imajiner: Jurnal Matematika dan Pendidikan Matematika Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Jurnal Teknik Informatika C.I.T. Medicom INFOKUM Takammul : Jurnal Studi Gender dan Islam Serta Perlindungan Anak Majalah Ilmiah Matematika dan Statistika (MIMS) Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Journal of Computer Networks, Architecture and High Performance Computing Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Asy Syar'iyyah: Jurnal Ilmu Syari'ah dan Perbankan Islam Asimetris: Pendidikan Matematika dan Sains Tawshiyah: Jurnal Sosial Keagamaan dan Pendidikan Islam Leibniz: Jurnal Matematika Jurnal Ilmiah Mahasiswa Perbankan Syariah (JIMPA) Journal of Mathematics and Scientific Computing With Applications International Journal of Science and Society (IJSOC) Jurnal Pijar MIPA East Asian Journal of Multidisciplinary Research (EAJMR) Jurnal Informatika Teknologi dan Sains (Jinteks) JYRS: Journal of Youth Research and Studies Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) Journal Keperawatan Abdimas Indonesian Journal JEBI (Jurnal Ekonomi dan Bisnis Islam) International Conference on Sciences Development and Technology Jurnal Rumpun Ilmu Kesehatan Klinik: Jurnal Ilmiah Kedokteran dan Kesehatan Journal of Educational Innovation and Public Health Jurnal Ilmu Kedokteran dan Kesehatan Indonesia Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Sabangka Abdimas Jurnal Pengabdian Masyarakat Sabangka Quadratic: Journal of Innovation and Technology in Mathematics and Mathematics Education Jurnal Penelitian Progresif (JPP) Jurnal Pengabdian Masyarakat Ekonomi dan Bisnis Digital Jurnal Kebijakan Pembangunan Daerah (JKPD) Bilangan: Jurnal Ilmiah Matematika, Kebumian dan Angkasa Society Al-bank: Journal of Islamic Banking and Finance Semeru Jurnal Pengabdian Masyarakat Jurnal Jendela Matematika Fathana: Jurnal Psikologi Ar-Raniry Madania: Jurnal Kajian Keislaman Jurnal Ilmu Kedokteran dan Kesehatan Indonesia Journal of Industrial Engineering and Management
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SIMULATION OF QUEUE PATIENT SERVICE Cipta, Hendra
ZERO: Jurnal Sains, Matematika dan Terapan Vol 1, No 1 (2017): January - June
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (858.389 KB) | DOI: 10.30829/zero.v1i1.1456

Abstract

Queue is one of the phenomena that occur in everyday activities experienced by everyone. As a result of this queue many people turn to other places to avoid a queue and get more leverage. The purpose of this study is to study the performance of the queue system by modeling a single queue simulation. From the analysis of distribution test calculation will be obtained by queuing model. The measured system parameters are expected average speed velocity, average service speed expectation, chance of busy period, probability of all patient service in system, expectation of queue length, expectation of waiting time in system, and waiting expectation in queue.Keywords: distribution test, queuing model, and system parameters
ANALYSIS OF FACTORS INFLUENCING DRUG ABUSE CASES USING MODELS GEOGRAPHICALLY WEIGHTED REGRESSION (GWR) IN INDONESIA Nurfebriyanti, Endah; Nasution, Hamidah; Cipta, Hendra
ZERO: Jurnal Sains, Matematika dan Terapan Vol 6, No 2 (2022): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v6i2.14917

Abstract

The number of drug abuse cases in Indonesia from 2015-2020 tends to fluctuate. Factors influencing drug abuse cases in each region are thought to vary according to geographical location. This geographic effect is known as spatial heterogeneity. Spatial heterogeneity was analyzed usingGeographically Weighted Regression(GWR). This study aims to model the factors that influence drug abuse in every province in Indonesia, namely Economic Situation (X1), Association/Environment (X2), Convenience (X3) and Lack of Supervision (X4) using a Gaussian kernel. The results showed that the GWR with the Gaussian kernel is better at estimating the model because it has a higher value, namely R^2 with 90.94% and the AIC value equals 598.798979. Factors that significantly affect the number of cases of drug abuse in Indonesia are Economic Conditions, Association/Environment, Convenience and Lack of Supervision.
Faktor Determinan Jiwa Wirausaha Pedagang Minangkabau Perantauan: Determinant Factors of Entrepreneurial Spirits among the Minangkabau Migrant Merchants Cipta, Hendra
Society Vol 7 No 2 (2019): Society
Publisher : Laboratorium Rekayasa Sosial, Jurusan Sosiologi, FISIP Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/society.v7i2.110

Abstract

This research aims to reveal the dominant factors of Minangkabau (the ethnic group native to the highlands of West Sumatra, Indonesia) migrants mainly engaged in merchandise. The Minangkabau hold firmly their customs and traditions which founded upon Islamic law as described in the saying “adat basandi syara’; syara’ basandi kitabullah” (tradition founded upon Islamic law, Islamic law founded upon the Holy Quran). This research was conducted in Ipuh sub-sub-district, Bengkulu province, Indonesia, those 150 respondents of Minangkabau merchants as the samples. The location was selected due to Ipuh sub-district is located near West Sumatra borders, so that the tradition strongly influence the Minang migrant merchants. To answer the research questions, the variables used were independent and dependent. The independent variable is the entrepreneurial spirit, while, the dependent variable is economic factors, adat (in this case, the term used is tradition), descendant, education, and independence. The research used a quantitative method by using multiple linear regressions. The result found that cultural variables influence the entrepreneurial spirits of Minangkabau merchant migrants because they uphold their traditions wherever they are. The insignificant influence of education, economic factor, heredity, and independence are insignificant. To conclude, matrilineal tradition has influenced the entrepreneurial spirits of Minang merchants and the matrilineal tradition can increase entrepreneurs among women.
The Role of Work Facilities, Employee Engagement, and Work Ethic in Enhancing Employee Performance with Job Satisfaction as an Intervening Factor at CV. Anugerah Tirta Persada Pangkalan Bun Cipta, Hendra; Hwihanus
International Journal of Science and Society Vol 6 No 2 (2024): International Journal of Science and Society (IJSOC)
Publisher : GoAcademica Research & Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/ijsoc.v6i2.1187

Abstract

This study explores the intricate relationships between work facilities, employee engagement, work ethic, job satisfaction, and employee performance within CV Anugrah Tirta Persada Pangkalan Bun. The research seeks to determine the impact of these factors on job satisfaction and how job satisfaction mediates their influence on employee performance. Utilizing a saturation sampling method, the study encompasses all 39 employees of the company. Data was collected via a comprehensive questionnaire covering respondent characteristics, work facility scale, work engagement scale, work ethic scale, job satisfaction scale, and employee performance scale, analyzed using SMARTPLS. Key findings reveal that work facilities and employee engagement do not significantly affect job satisfaction, as evidenced by p-values of 0.449 and 0.410, respectively. Conversely, work ethic significantly enhances job satisfaction with a p-value of 0.000. Job satisfaction is confirmed as a substantial predictor of employee performance (p-value 0.000). While job satisfaction significantly moderates the influence of employee engagement on performance (p-value 0.010), it does not moderate the effects of work facilities or work ethic on performance. Additionally, work ethic directly influences employee performance (p-value 0.012), while work facilities do not show a significant direct impact (p-value 0.177). These insights suggest prioritizing work ethic and employee engagement over work facilities to enhance job satisfaction and performance. The findings contribute valuable perspectives to human resource management practices, emphasizing the need for organizations to foster strong work ethics and employee engagement to boost overall performance.
Pengklasifikasian Variabel-Variabel Yang Mempengaruhi Terjadinya Stunting di Kota Medan dengan Metode Chi-Square Automatic Interaction Detection (CHAID) Rakhmawati, Fibri; Arianti, Mei Yunina; Widyasari, Rina; Cipta, Hendra
Asimetris: Jurnal Pendidikan Matematika dan Sains Vol. 4 No. 2 (2023): Asimetris: Jurnal Pendidikan Matematika dan Sains
Publisher : Pendidikan Matematika Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/asimetris.v4i2.2303

Abstract

Tujuan penelitian ini adalah pengklasifikasian dan menganalisis faktor mana yang sangat berepengaruh terhadap kejadian stunting di Kota Medan menggunakan metode CHAID. Metode CHAID ini bekerja dengan mengidentifikasi hubungan antara variabel dependen dan independen lalu menggunakan hubungan ini untuk mengklasifikasikan sampel. Hasil penelitian menunjukkan bahwa faktor-faktor yang berpengaruh pada kejadian stunting terhadap bayi usia 24-59 bulan di Kota Medan berdasarkan hasil analisis metode CHAID adalah Riwayat Pemerian ASI Eksklusif dan Sanitasi. Dari hasil analisis metode CHAID diperoleh tiga pengklasifikasian berbeda yaitu: (1) Bayi usia 24-59 bulan yang mengalami stunting sangat pendek adalah bayi dengan keadaan Riwayat Pemberian ASI Eksklusif tidak diberikan sebesar 54% dan sanitasi tidak layak sebesar 66,7%. (2) Bayi usia 24-59 bulan yang mengalami stunting adalah bayi dengan keadaan Riwayat Pemberian ASI Eksklusif tidak diberikan sebesar 54% dan sanitasi layak sebesar 25% dan (3) Bayi usia 24-59 bulan yang tidak mengalami stunting sangat pendek adalah bayi dengan keadaan Riwayat Pemberian ASI Eksklusif diberikan 23%. Sehingga hasil temuan penelitian ini diharapkan memberikan masukan kepada pihak terkait dalam mengantisipasi terjadinya kasus stunting dengan mengklasifikasi factor-faktor mana saja yang sangat mempengaruhi kasus stunting ini.  
Dampak Perceraian Terhadap Kenakalan Remaja Cipta, Hendra
Edugama: Jurnal Kependidikan dan Sosial Keagamaan Vol. 3 No. 2 (2017): Edugama: Jurnal Kependidikan dan Sosial Keagamaan
Publisher : PASCASARJANA IAIN SYAIKH ABDURRAHMAN SIDDIK BANGKA BELITUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32923/edugama.v3i2.724

Abstract

Abstract In General, factors causing the emergence of juvenile deliquency are a family reason caused by divorce, both parents and the next factor is the environmental factors influenced by playmates and the environment around the dwelling. The media also have a role to cause juvenile delinquency. To minimize this juvenile delinquency that needs to be done is to enforce the rules, listen to teenagers complaints, give attention to teenagers, provide motivation to the teenagers and accompany and play with teenagers' activities they enjoy. Abstrak Secara umum, faktor penyebab munculnya kenakalan remaja adalah alasan keluarga yang disebabkan oleh perceraian, kedua orang tua dan faktor berikutnya adalah faktor lingkungan yang dipengaruhi oleh teman bermain dan lingkungan di sekitar tempat tinggal. Media juga memiliki peran untuk menyebabkan kenakalan remaja. Untuk meminimalkan kenakalan remaja yang perlu dilakukan adalah menegakkan aturan, mendengarkan keluhan remaja, memberikan perhatian kepada remaja, memberikan motivasi kepada remaja dan menemani dan bermain dengan kegiatan remaja yang mereka nikmati.
Perilaku Penggunaan Daun Seurapoh Dalam Pencegahan Penyakit Menular Melalui kontaminasi luka Pada Keluarga Pasca Bencana Gempa Tsunami Di Banda Aceh: Lesson Learn Pasca Bencana Aceh Tahun 2004 Cipta, Hendra
Takammul : Jurnal Studi Gender dan Islam Serta Perlindungan Anak Vol. 13 No. 2 (2024): Takammul
Publisher : Pusat Studi Wanita UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/takamul.v13i2.29127

Abstract

The post  disaster of tsunami-earthquake on December 26, 2004 and predicted severe conditions such epidemic but  not proven, it's an interesting thing to study. The study aims to explore the behavior of the family of  Banda Aceh faces outbreaks diseases through the contamination of the wound so as to prevent an outbreak of post disaster. Exploratory qualitative research with data sources from the family and key persons. Data was collected through interviews in the three districts of Banda Aceh on the different categories of disasters. The results of the study there was a positive family behavior in the prevention of infectious diseases outbreak the disaster. The study concluded the presence of  behavioral local wisdom of the family in the prevention of infectious diseases through wound contamination in the form of caring for his own adapted to the availability of remedy or medicine, wiping the wound with clean water or heated, close the wound with a clean cloth, went to officer / places health services. Suggestions in this study; as learning to be applied other countries as well as necessary to prove the use of leaf Seurapoh wound care family for medicinal.
Goal Programming Model in Tackling The Optimal Building Material for Production Planning Cipta, Hendra; Widyasari, Rina
Journal of Industrial Engineering and Management Vol 1, No 1 (2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/jaiem.v1i1.2

Abstract

The goal achieved in the preparation of production planning is more than one. UD Rezeki Berkah is a small business medium-sized enterprise engaged in the production of building materials. UD Rezeki Berkah aims to meet market demand and must consider the costs used during production to maximize profit. Because of these problems, it will be solved with a goal programming model where this method can solve more than one goal to get a model with optimal goal priority. This research provides an optimal solution, namely achieving the target sales volume and production costs within the Rp limit target. 929,128,971, and profit targets reached Rp. 562,751,890 for a period of one year.
Determinant Factors Of Profitability Of Islamic Banks In 2017-2021 With Capital Adequacy Ratio As a Variable Intervening Wita Sari, Eka; Irvani, Ahmad; Meilani, Reka; Cipta, Hendra
Al-bank: Journal of Islamic Banking and Finance Vol 3 No 2 (2023): July - Desember 2023
Publisher : Universitas Islam Negeri Mahmud Yunus Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/ab.v3i2.9088

Abstract

This study aims to analyze the effect of Non Performing Financing (NPF) and Finance to Deposit Ratio (FDR) on Islamic bank profitability mediated by Capital Adequacy Ratio (CAR). This study uses secondary data in the form of panel data (pooled data), which is a combination of cross section data and time series data. The analysis technique uses path analysis. The results showed that FDR has no influence on CAR while NPF affects the CAR of Islamic banks. FDR and NPF directly have no influence on the ROA of Islamic banks. CAR variable is only able to be intervening between NPF and ROA while FDR variable indirectly through CAR variable has no significant effect on ROA of Islamic banks.
PENERAPAN METODE MONTE CARLO DALAM MEMPREDIKSI JUMLAH PENGANGGURAN DI SUMATERA UTARA dewi, mutia hatina; Lubis, Riri Syafitri; Cipta, Hendra
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 4 (2025): November 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i4.4642

Abstract

Abstract: Unemployment is still a problem that often occurs in every region, including in every area in North Sumatra. Unemployment rates can inevitably lead to an increase in poverty. And this can continuously trigger other losses such as rampant robbery, theft, fraud and even crimes that will harm the general public. The purpose of this study, among others, is to predict the number of unemployed in each district/city of North Sumatra from 2021 to 2025 using the Monte Carlo method and find out whether this method can be used to predict population such as unemployment. The advantage of this method lies in strong numerical calculations in simulating data by producing accurate values and the results of predicting the number of unemployed in 2021, 2023 and 2024 have decreased with the number of unemployed each year ranging from 426383, 426383 and 399403 people. Meanwhile, for 2022 and 2025 it will be an increase of 43260 and 41605 people. Keyword: Predicting, Number of Unemployed, Monte Carlo Abstrak: Pengangguran masih menjadi permasalahan yang kerap terjadi di setiap daerah termasuk di setiap daerah yang ada di Sumatera Utara. Tingkat pengangguran yang tidak terelakan dapat memicu terjadinya peningkatan kemiskinan, kriminalitas. seperti maraknya perampokan, pencurian, penipuan bahkan kejahatan yang akan merugikan khalayak ramai maupun kesenjangan sosial dan dampak negatif lainnya. Tujuan dari penelitian ini antara lain untuk memprediksi jumlah pengangguran di setiap daerah Sumatera Utara perkabupaten/ kota tahun 2021 sampai dengan 2025 dengan menggunakan metode Monte Carlo serta mengetahui apakah metode tersebut dapat digunakan dalam memprediksi kependudukan seperti pengangguran. Keunggulan metode ini terletak pada perhitungan numerik yang kuat dalam mensimulasikan data dengan menghasilkan nilai yang akurat dan hasil dari memprediksi jumlah pengangguran di tahun 2021, 2023 dan 2024 mengalami penurunan dengan jumlah pengangguran disetiap tahunnya berkisar 426383, 426383 dan 399403 jiwa. Sedangkan untuk tahun 2022 dan 2025 mengalami kenaikan sebesar 43260 dan 41605 jiwa. Kata kunci: Prediksi, Jumlah Pengangguran, Monte Carlo 
Co-Authors Adek Kumala Sari Afrina Sinaga, Serly Agustian, Nandi Ahmad Ali Nasution Ahmad Fadholi Aisy Al-Khansa Amalia, Feby Ayu Ambia Nurdin Amiruddin Amiruddin Amiruddin Amiruddin Apriza, Muhammad Amizaeni Arianti, Mei Yunina Arini Arini Aulia, Surayya Ayu Hariati Ayunda, Afrila Barmawi Barmawi, Barmawi Batubara, Fikri Husin Br. Munte, Rahma Nadira Breghi, Willy Bukhari Bukhari Clara, Nur Cellia Cynthia, Mayang Modelina Dalimunthe, Aldiansah Desiana Desiana, Desiana Destiana, Yolanda dewi, mutia hatina Dian Nugraha Dimas Sunanta Dongoran, Raisha Zuhaira Erika Handayani Br Siahaan Fadila Inka Syahfitri Fahlevi, Mahfudz Reza Fauzi Aldina Fauzi Aldina Fernando, Anjas Fitrahadi, Agung Fitriani Gurusinga, Ditha Aulia Gusti Arya Wicaksana Handrianto, Michael Harahap, Baran Enda Hari Kurniawan Harri Santoso Hasibuan, Hani Maulida Hasibuan, Mhd Panerangan Hasibuan, Muhammad Afif Fauzi Hasyim Lubis Hatamar, Hatamar Hazizah, Salsabillah Hwihanus Ida Ayu Putu Sri Widnyani Ika Silvia Ramadani Ilham Syaputra Indra Willy Juliansya Indrawati Indrawati Ir Zulkarnain, Ayu Najmita Binti Irvani, Ahmad Islamiyah, Annisa Rizka Ismail Husein, Ismail Isnani Nurul Deva Kana Nurrohma Khairani, Sabila Lathifah Hanum, Lathifah Lia Lestari Linna Syahputri Linna Syahputri Makmun, Sukran Marina Ulfah Mario Bagus Sanjaya Marpaung, Rizq Alwi Matondang, Agnes Febrianti Mei Yunina Arianti Meilani, Reka Mhd Ikhsan Rifki Mirna Rahmah Lubis Muhammad Alfi Syahri Harahap Muhammad Haikal Muhammad Haikal Muhammad Irham Setiadi Muhammad Muhammad Muliana, Muliana Muslim Mutadhahadi Mutadhahadi Nasrul Mahruf Aznawi Nasution, Faisal Anshori Nasution, Hamidah Nasution, Hanifa Mardiatun Nasution, Mutiah Ningsi, Ria Sagita Nugraha Pratama Ramadhan Nurdin, Ambia Nurfebriyanti, Endah Nurhalimah Ritonga Nurhaliza Nurhaliza Nurhaliza Nurhaliza Nurjannah Nurjannah Nurma Sari Nurul Aprilla Rizki Nurul Huda Prasetya Ok Muhammad Zikri Fadillah oktavia handayani Panca Taufik Kurahman Paramita, Esti Puspita, Reni Putra, Fani Darmawan Putri Harahap, Rahmelia Rahmad Julianto Rahmad Julianto Rahmadani, Artika Rakhmawati, Fibri Rezki Azmi Ricka Afriani Ricky Dear Fitria Ricky Dear Fitria Rico Pradana Dita Rima Aprilia Rima Aprilia Rima Aprilia Rina Filia Sari Rina Filia Sari, Rina Filia Rina Widyasari Rina Widyasari Rina Widyasari Rina Widyasari Riri Syafitri Lubis Rizka Auva Rafiqi Rizky, Aldi Rizq Alwi Marpaung Rohima Almahuwanah Rosnidawati Sajaratud Dur Sajaratud Dur Sajaratud Dur Sajaratud Dur, Sajaratud Salsalina, Iren SANAINI, SANAINI Sartika Dewi Sembiring, Tesya Yunita Setyorini, Winarti Sianipar, Putri Nopriani Sinaga, Melly Nia Fajriani Siregar, Machrani Adi Putri Siti Khadijah Laoly SRI RAHAYU Suhardina Rangkuti Suhendra, Darmiko Syahfitri, Nenna Irsa Syahputra, Bayu Teza Syahputri, Linna Teuku Maulana Uci Rahmadani Ulfa, Khoirina Utami, Ristika Dian Wenny Marta Dolok Saribu widya panjaitan Widyasari, Rina Wilia Usna Winda Risfani Nst Windu Asmoro Wita Sari, Eka Zakirman, Al Fakhri Zakiyuddin Zakiyuddin Zakiyuddin Zakiyuddin Zamzami Zamzami Zamzami Zamzami Zulaika, Zulaika