International Journal of Global Operations Research
International Journal of Global Operations Research (IJGOR) is published 4 times a year and is the flagship journal of the Indonesian Operational Research Association (IORA). It is the aim of IJGOR to present papers which cover the theory, practice, history or methodology of OR. However, since OR is primarily an applied science, it is a major objective of the journal to attract and publish accounts of good, practical case studies. Consequently, papers illustrating applications of OR to real problems are especially welcome. In real applications of OR: forecasting, inventory, investment, location, logistics, maintenance, marketing, packing, purchasing, production, project management, reliability and scheduling. In a wide variety of environments: community OR, education, energy, finance, government, health services, manufacturing industries, mining, sports, and transportation. In technical approaches: decision support systems, expert systems, heuristics, networks, mathematical programming, multicriteria decision methods, problems structuring methods, queues, and simulation. Topics Covered: Computational Intelligence Computing and Information Technologies Continuous and Discrete Optimization Decision Analysis and Decision Support System Applied Operations Research in Education Engineering Management Environment, Energy and Natural Resources Financial Engineering Applied Operations Research inGovernment Heuristics Industrial Engineering Information Management Information Technology Inventory Management Knowledge Management Logistics and Supply Chain Management Maintenance Manufacturing Industries Applied Operations Research in Marketing Engineering Markov Chains Mathematics Actuarial Sciences Military and Homeland Security Networks Operations Management Organizational Behavior Planning and Scheduling Policy Modeling and Public Sector Applied Operations Research inPolitical Science Production Management Applied Operations Research inPsychology Queuing Theory Revenue & Risk Management Services management Simulation Applied Operations Research inSociology Applied Operations Research inSports Statistics Stochastic Models Strategic Management Systems Engineering Telecommunications Transportation And so on
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<![CDATA[The Role of Perceived Ease of Use and Perceived Enjoyment in Affecting User Satisfaction on Grabfood Users in Bandung City ]]>
<![CDATA[Rusnendar, Elan]]>;
<![CDATA[Meilanty, Tanti]]>;
<![CDATA[Iswardani, Dwita Leoni]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v4i2.216
<![CDATA[The purpose of this study is to find out how much influence the Perceived ease of use and Perceived enjoyment have on User satisfaction on Grabfood users in Bandung City. The research method used in this research is descriptive and verification with a quantitative approach. The population in this study are users of the Grabfood application in Bandung City. Collecting data in this study using a questionnaire distributed to 100 respondents with probability sampling technique with purposive sampling. The results showed that partially Perceived ease of use had a significant effect on User satisfaction on Grabfood users with a tvalue of 7.328>1.984 or a significance value of 0.000 <0.05 and an coefficient value of 90.9%, The results showed that Perceived Enjoyment had a significant effect on User satisfaction on Grabfood users with a tvalue of 5.404>1.984 or a significance value of 0.000 <0.05 and an coefficient value of 89.1 % While the results of the study simultaneously show that Perceived ease of use and Perceived enjoyment have a significant influence on User satisfaction on Grabfood users with a calculated Fvalue of 643.123>3.09 and a significance value of 0.000 <0,05 and the value of coefficient is 92.8%]]>
<![CDATA[Storytelling of Destinations Through Travel Writing ]]>
<![CDATA[Satrya, I Dewa Gde]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v4i2.219
<![CDATA[Traveling is a pleasant experience. For marketers, the media to promote tourist destinations requires honest recognition from tourists who have visited. Currently, a tourism promotion tool can be carried out using a place storytelling approach that is packaged into a travel writing book. This article is the result of qualitative research using the primary data source of interviewing travel writers and studying travel writing works. Secondary data comes from literature studies. The formulation of the problem in this research is how to implement place storytelling through travel writing? The conclusion of this study is that originality is the main key to place storytelling and travel writing books are an effective promotional tool for marketing tourist destinations.]]>
<![CDATA[Controlling Water Quality of a Firm's Hydropower ]]>
<![CDATA[Al-Matar, Najeeb]]>;
<![CDATA[Tadj, Lotfi]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v4i2.217
<![CDATA[The problem considered in this paper concerns a manufacturing firm located at a lake. The firm uses the lake's water in its production process. However, the production process affects the quality of the water. The manufacturing firm will only survive if the natural resource it uses, namely water in this case, remains available for the long term. Sustainability can be achieved through green manufacturing practices. The problem is dynamic, and optimal control theory, namely model predictive control, is used to determine the optimal production rate and the optimal rate of expenditure for pollution control. A numerical example illustrates the results obtained. ]]>
<![CDATA[The Influence of Capital Adequacy Ratio, Loan to Deposit Ratio, and Net Interest Margin on Return on Asset at Bank Jabar Banten ]]>
<![CDATA[Sari, Widya]]>;
<![CDATA[Putri, Nur Azizah Hasna]]>;
<![CDATA[Apriani, Dina]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
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DOI: 10.47194/ijgor.v4i2.220
<![CDATA[Based on the results of observations, this research is motivated by the fluctuating phenomenon in these ratios and the discrepancy with the theory put forward by experts. This study aims to find out how the effect of CAR on ROA at Bank BJB, find out how the influence of LDR on ROA at Bank BJB, find out how the influence of NIM on ROA at Bank BJB, and find out how the influence of CAR, LDR, and NIM simultaneously on ROA at Bank BJB. The object of research in this thesis is the ratio of CAR, LDR, and NIM to ROA. The type of research is quantitative with an associative approach with secondary data types and uses data collection techniques in the form of documentation and literature study. While taking the sample using purposive sampling technique. The population is Bank BJB quarterly financial report data for the 2017-2021 period. The results of the study show that there is no significant and negative effect between CAR on ROA at Bank BJB, there is no significant effect between LDR on ROA at Bank BJB and in a negative direction, but there is a significant effect between NIM on ROA at Bank BJB. Simultaneously there is no effect between CAR, LDR, and NIM on ROA at Bank BJB.]]>
<![CDATA[The influence of Total Quality Management and Reward on Employee Performance at Bank BJB Sumedang Branch Office ]]>
<![CDATA[Nasution, Ade Iskandar]]>;
<![CDATA[Dewi, Pebrianti Kamisha]]>;
<![CDATA[Puspitasari, Melina Dwi]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v4i2.221
<![CDATA[This study aims to determine how the effect of Total Quality Management and Reward on employee performance at Bank BJB Sumedang Branch Office either partially or simultaneously.The object of research on employee performance reports at Bank BJB Sumedang Branch Office. The type of research is quantitative associative with primary data type and uses data collection techniques in the form of observation, interviews, questionnaires, and literature study. While the sampling technique is Non Probability Sampling with purposive sampling. The population is all employees at Bank BJB Sumedang Branch Office, totaling 110 people with a sample of 86 people.The results showed that there was a significant effect on the Total Quality Management variable on Employee Performance of 57.5% at Bank BJB Sumedang Branch Office, this can be seen from tcount of 2,290 > 1,989 with a significant value of 0.025 < 0.05. There is a significant effect on the Reward variable on Employee Performance of 23.7% at Bank BJB Sumedang Branch Office, this can be seen from tcount of 2,076 > 1,989 with a significant value of 0.041 < 0.05. There is a simultaneous effect on the Total Quality Management and Reward variables on Employee Performance of 58.1% at Bank BJB Sumedang Branch Office, this can be seen from the Fcount of 7.214 > 2.71 and a significant value of 0.002 < 0.05, this indicates that independent variables jointly affect the dependent variable.]]>
<![CDATA[Analysis Of The Influence Of Delivery Service Quality On Customer Satisfaction JNE Trucking Sub Agent Klaten ]]>
<![CDATA[Ekowati, Maria Atik Sunarti]]>;
<![CDATA[Rumekso, Ayub Widhi]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v4i2.194
<![CDATA[The purpose of this study is to analyze the effect of the quality of freight forwarding services on customer satisfaction by using five variables, namely Tangible, Reliability, Responsiveness, Assurance, Empathy, and the variable customer satisfaction as a dependent variable. The population is all JNE customers, sampling on 30 respondents, using non-probability sampling technique and accidental sampling approach, anyone who is met can sample. The method used is descriptive statistics, multiple linear regression, validity and reliability test, T test, F test and the determinant coefficient (R2). The results of the analysis, research indicators are valid and reliable, does not happen heteroscedasticity seta normally distributed.]]>
<![CDATA[Effectiveness of Nebulization Therapy with Chest Physiotherapy After Nebulization on Airway Clearance in Children with Bronchopneumonia ]]>
<![CDATA[M, Denni Fransiska Helena]]>;
<![CDATA[Nurhayati, Siti]]>;
<![CDATA[Khotimah, Nur Intan Hayati Husnul]]>
<![CDATA[ International Journal of Global Operations Research Vol. 4 No. 2 (2023): International Journal of Global Operations Research (IJGOR), May 2023 ]]>
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DOI: 10.47194/ijgor.v4i2.215
<![CDATA[Bronchopneumonia accounts for 15% of all deaths of children under five. The primary nursing problem of bronchopneumonia patients is ineffective airway clearance which can lead to more severe problems such as shortness of breath and even death. Management of airway ineffectiveness can be done by nebulization and corticosteroids, chest physiotherapy, suctioning and effective coughing. Nebulization accompanied by chest physiotherapy can remove secretions or phlegm effectively. This study aims to analyze the differences in airway clearance before and after nebulization and chest physiotherapy in the control and intervention groups in bronchopneumonia children. The research design used is Quasi-Experimental. A sample of 36 respondents with bronchopneumonia children was divided into two groups, namely control and intervention groups, which were obtained by consecutive sampling. Data collection techniques used observation sheets. The data analysis used in this study is the Mann-Whitney Test. The results showed that before chest physiotherapy after nebulization, all respondents had ineffective airway clearance (100%) in both the intervention and control groups. After chest physiotherapy after nebulization, almost half of the respondents in the intervention group had adequate airway clearance (44.4%). In contrast, in the control group, a small proportion of respondents had adequate airway clearance (16.7%). The analysis showed a p-value of 0.001, meaning there is a significant difference in airway clearance after being given nebulization and chest physiotherapy interventions in the intervention and control groups. Researchers hope that in future studies, airway clearance levels can be included. Thus, chest physiotherapy is effectively used for airway clearance in children after nebulization.]]>
