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All Journal Journal of Geoscience, Engineering, Environment, and Technology Al-Mashrafiyah : Jurnal Ekonomi, Keuangan, dan Perbankan Syariah JOURNAL OF SCIENCE AND SOCIAL RESEARCH Economic: Journal Economic and Business
Syahputra, Reza
Unknown Affiliation
Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Physics Social Sciences

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Strategic Optimization With Decision Theory: Unpacking the Operations Research Framework for Effective Decision Making Munthe, Putri Enjelita; Harahap, Lokot Muda; Hadiwijaya, Rangga; Ginting, Dionisius; Suwarno, Iin; Syahputra, Reza; Ananda, Tanya
Economic: Journal Economic and Business Vol. 2 No. 3 (2023): ECONOMIC: Journal Economic and Business
Publisher : Lembaga Riset Mutiara Akbar (LARISMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/ejeb.v2i3.684

Abstract

Making the right decisions can optimize resource utilization, increase operational efficiency, and strengthen competitive positions in the market. A decision, as a choice of action from various alternatives that fulfill one or more goals, has a significant impact on various related parties. Therefore, decision making is the main function for a leader, both in companies and public institutions. The technique of modifying data to increase its value and usefulness is known as data optimization. This entails converting unstructured data into a structured format, improving data quality, reducing duplication, and retrieving related information. This research was conducted using a narrative review model. The research method used is secondary data collected from various international journals, papers, and previous research papers used as data sources and analyzed by the author taking into account the problems considered in this research.
Cost-Efficient Digital Elevation Model (DEM) Acquisition on Flume Tank Morphodynamic Observation Prasojo, Octria Adi; Aufar, Adlirrahman; Syahputra, Reza
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.04.2311

Abstract

Digital Elevation Model (DEM) is well known for providing solutions to the theoretical and application-related problems around geosciences. The use of DEM in flume tank experiment is getting more common nowadays. Flume tank itself is built to simulate the landscape and stratigraphy at laboratory scale. This physical experiment may have tremendous impacts on understanding the sedimentation process in a laboratory-scaled experiment. Normally, the morphodynamic behaviour of a laboratory-scaled deposit in the flume tank experiment would be observed through its digital elevation model. In this paper, a novel method in constructing cost-efficient digital elevation model was presented. By using this inexpensive tool to create a digital elevation model in a flume tank experiment setup, some challenges and benefits will follow this method. Some challenges including tool’s resolution and time consuming could be diminished in the near future by creating automated motor system to move the laser distance meter sequentially. Automated and integrated system from the LDM to the processing software could also reduce the time consumption. In the other hand, some benefits including financial benefit, reliability in a sedimentary structure scale, and also the practicality to be applied in any flume tank system available in Indonesia. Nevertheless, this method had been tested and some reliable results from the previous studies in Quantitative Sedimentology Laboratory, Universitas Indonesia was presented in this paper. Hopefully, some major improvements could be done to get more accurate and detail digital elevation model in the near future.
PENGARUH MOTIVASI KERJA, BEBAN KERJA, TEAM WORK TERHADAP KINERJA PEGAWAI PADA PT. KOPERASI TELEKOMUNIKASI SELULAR (KISEL) REGIONAL I PROVINSI SUMATERA UTARA Syahputra, Reza
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 3 (2025): August 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i3.3764

Abstract

Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh motivasi kerja, tingkat beban kerja, serta kerja tim terhadap kinerja karyawan di PT. Koperasi Telekomunikasi Selular (Kisel) Regional I Sumatera Utara. Pendekatan yang digunakan dalam penelitian ini adalah metode kuantitatif dengan jenis penelitian asosiatif. Jumlah sampel terdiri dari 110 responden yang dipilih melalui teknik insidental sampling dan perhitungan menggunakan rumus Slovin dengan tingkat kesalahan 10%. Hasil penelitian mengungkapkan bahwa motivasi kerja (X1) menjadi faktor paling dominan dan signifikan dalam mempengaruhi kinerja karyawan, ditunjukkan dengan nilai signifikansi sebesar 0.000 dan nilai t-hitung sebesar 4.864. Selain itu, beban kerja (X2) juga memiliki pengaruh signifikan dengan nilai signifikansi 0.020, diikuti oleh variabel kerja sama tim (X3) yang turut memberikan pengaruh signifikan dengan signifikansi 0.040. Ketiga variabel tersebut secara bersama-sama terbukti memiliki pengaruh signifikan terhadap kinerja karyawan, sebagaimana ditunjukkan oleh hasil uji F dengan nilai signifikansi 0.000. Model regresi dalam penelitian ini mampu menjelaskan 27,8% dari variasi kinerja pegawai (R² = 0,278), sementara sisanya, sebesar 72,2%, dijelaskan oleh variabel lain yang tidak termasuk dalam model. Hasil ini menunjukkan bahwa upaya untuk meningkatkan kinerja karyawan dapat dilakukan melalui penguatan motivasi, pengaturan beban kerja yang seimbang, serta peningkatan efektivitas kerja sama dalam tim.
The Influence of Service Quality on Customer Satisfaction at PT BBRS Al-Washliyah Medan Syahputra, Reza; Maryam Batubara
Al-Mashrafiyah (Jurnal Ekonomi, Keuangan dan Perbankan Syariah) Vol 9 No 1 (2025)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-mashrafiyah.v9i1.60464

Abstract

In the era of increasingly fierce banking competition, service quality is one of the factors that determine the success of a financial institution. This research aims to determine the influence of service quality on customer satisfaction at PT BPRS Al-Wasliyah Medan. This research was conducted on customers of PT BPRS Al-Wasliyah Medan. The type of research used is quantitative research. Sampling used the Purposive Sampling technique, because the researcher only sampled 91 customer respondents. The data collection technique uses a questionnaire whose validity and reliability have been tested. From the findings of the research conducted, it shows that Service Quality, namely, Reliability, Responsiveness, Empathy, Assurance, Tangible is very influential on customer satisfaction of PT BPRS Al-Wasliyah Medan. With a coefficient of determination (adjusted R square) of 0.713 or 71.3%. By improving service quality customer pleasure or satisfaction is fulfilled.
PENGARUH MOTIVASI KERJA, BEBAN KERJA, TEAM WORK TERHADAP KINERJA PEGAWAI PADA PT. KOPERASI TELEKOMUNIKASI SELULAR (KISEL) REGIONAL I PROVINSI SUMATERA UTARA Syahputra, Reza; Lumbanraja, Prihatin; Aritonga, Evawany Yunita
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 9, No 1 (2026): February 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i1.5781

Abstract

Abstract: This study aims to determine the extent of influence of work motivation, workload level, and teamwork on employee performance at PT. Koperasi Telekomunikasi Selular (Kisel) Regional I North Sumatra. The approach used in this study is a quantitative method with an associative research type. The number of samples consisted of 110 respondents selected through incidental sampling techniques and calculations using the Slovin formula with an error rate of 10%. The results of the study revealed that work motivation (X1) is the most dominant and significant factor in influencing employee performance, indicated by a significance value of 0.000 and a t-count value of 4.864. In addition, workload (X2) also has a significant influence with a significance value of 0.020, followed by the teamwork variable (X3) which also has a significant influence with a significance of 0.040. These three variables together are proven to have a significant influence on employee performance, as indicated by the results of the F test with a significance value of 0.000. The regression model in this study was able to explain 27.8% of the variation in employee performance (R² = 0.278), while the remaining 72.2% was explained by other variables not included in the model. These results indicate that efforts to improve employee performance can be done through strengthening motivation, balancing workload arrangements, and increasing the effectiveness of teamwork. Keywords: Work Motivation, Workload, Teamwork and Employee Performance Abstrak: Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh motivasi kerja, tingkat beban kerja, serta kerja tim terhadap kinerja karyawan di PT. Koperasi Telekomunikasi Selular (Kisel) Regional I Sumatera Utara. Pendekatan yang digunakan dalam penelitian ini adalah metode kuantitatif dengan jenis penelitian asosiatif. Jumlah sampel terdiri dari 110 responden yang dipilih melalui teknik insidental sampling dan perhitungan menggunakan rumus Slovin dengan tingkat kesalahan 10%. Hasil penelitian mengungkapkan bahwa motivasi kerja (X1) menjadi faktor paling dominan dan signifikan dalam mempengaruhi kinerja karyawan, ditunjukkan dengan nilai signifikansi sebesar 0,000 dan nilai t-hitung sebesar 4,864. Selain itu, beban kerja (X2) juga memiliki pengaruh signifikan dengan nilai signifikansi 0,020, diikuti oleh variabel kerja sama tim (X3) yang turut memberikan pengaruh signifikan dengan signifikansi 0,040. Ketiga variabel tersebut secara bersama-sama terbukti memiliki pengaruh signifikan terhadap kinerja karyawan, sebagaimana ditunjukkan oleh hasil uji F dengan nilai signifikansi 0,000. Model regresi dalam penelitian ini mampu menjelaskan 27,8% dari variasi kinerja pegawai (R2 = 0,278), sementara sisanya, sebesar 72,2%, dijelaskan oleh variabel lain yang tidak termasuk dalam model. Hasil ini menunjukkan bahwa upaya untuk meningkatkan kinerja karyawan dapat dilakukan melalui penguatan motivasi, pengaturan beban kerja yang seimbang, serta peningkatan efektivitas kerja sama dalam tim. Kata kunci: Motivasi Kerja, Beban Kerja, Kerja Sama Tim dan Kinerja Karyawan
Co-Authors Ananda, Tanya Aritonga, Evawany Yunita Aufar, Adlirrahman Ginting, Dionisius Hadiwijaya, Rangga Lokot Muda Harahap, Lokot Muda Maryam Batubara Munthe, Putri Enjelita Prasojo, Octria Adi Prihatin Lumbanraja Suwarno, Iin