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International Journal of Global Operations Research

ijgor
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Published by Indonesian Operations Research Association

ISSN : 27231747 EISSN : 27221016 DOI : https://doi.org/10.47194/ijgor

Core Subject : Economy, Science, Education, Engineering,

Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Mathematics

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

Arjuna Subject : Umum - Umum

Articles 10 Documents

Search results for , issue "Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024" : 10 Documents clear

Multi-Item Inventory Control Using Economic Order Quantity (EOQ) Model with Safety Stock, Reorder Point, and Maximum Capacity in Retail Business Mubasysyir, Muhammad Hanif; Supian, Sudradjat; Hertini, Elis
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.237

The presence of retail businesses in Indonesia has many positive impacts on the community, especially in improving the economy. The existence of buying and selling transactions involving suppliers, retailers, and the community as consumers can play a role in improving the national economy. Retail can be called a bridge for suppliers and consumers to meet their needs. The diversity of consumer needs requires retailers to provide a variety of products from many suppliers. Efforts that need to be made by retail businesses in order to minimize costs incurred are by controlling inventory. To prevent excessive expenditure, the inventory control method used is to apply the Economic Order Quantity (EOQ) model. The EOQ model can provide the optimum total inventory cost by adjusting the frequency of orders placed over a period of time. After obtaining the total inventory cost, the calculation of safety stock, reorder point, and maximum capacity can also be applied so that the inventory costs incurred can be minimal.

Analysis of Policy Strategy for Empowerment of Fisherman in Teluk Village, Labuan Sub-District, Pandeglang Regency Jumiati, Ipah Ema; Budiati, Ayuning
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.287

The community empowerment approach is sought to provide guidance for the sustainability of the livelihoods and lives of the fishing communities of Teluk Village, Labuan District, Pandeglang Regency, especially after being hit by the tsunami (22/12/2018) and the Covid-19 pandemic. Ecosystem preservation also requires commitment from stakeholders. The policy strategy is the government's task that needs to be analyzed, while the community has strong social capital, as a form of survival in facing opportunities, challenges and threats in the management of marine and fishery resources. This study aims to analyze the policy strategy for empowering fishermen in Teluk Village, Labuan District, Pandeglang Regency. The key theory used is the concept of strategy according to Hunger-Wheelen (2003: 9), through observing the external environment to describe opportunities and threats, then observing the internal environment of the organization to describe strengths and weaknesses known as Strengths, Weaknesses (weaknesses). Opportunities (opportunities), and Threats (threats). The approach used in this research is descriptive qualitative. Through this approach it is intended to be able to take a full picture of various phenomena that aim to describe, summarize various conditions, various situations or various social realities of empowering the fishing community in Teluk Village, Labuan District, Pandeglang Regency. The results of the study show that the policy strategy for empowering fishermen in Teluk Village refers to strengthening the internal and external sources of the Pandeglang Regency Maritime Service organization, including efforts in the field of empowering fishermen by carrying out various fisheries business development programs, carrying out fishermen technical guidance for business groups with fishermen. Furthermore, monitoring and evaluation, as well as carrying out reports. The suggestion that the researchers put forward is to increase various efforts to empower fishermen in the Bay Village by encouraging fishermen's involvement in accessing various institutional fishermen empowerment programs and revitalizing various facilities and infrastructure that require development and repair due to the tsunami disaster.

Potential Analysis of Drug Interactions in Schizophrenia Cases At One of the Bandung District Pharmacy, Indonesia Herliany, Yane Srie; Nurdin, Hari
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.291

Schizophrenia is a heterogeneous syndrome of thought disturbances, delusions, hallucinations, emotional disturbances, decreased cognitive function and disturbed psychosocial functions. Treatment of schizophrenia aims to prevent hospitalization, ensure the patient's symptoms are stable and independent such as work or school. The purpose of this study was to determine the potential for drug interactions in schizophrenia cases based on their mechanism of action and severity. This research method is a descriptive study using data collected retrospectively on prescription drug data sheets in the pharmacy. The collected data were analyzed quantitatively and qualitatively. The results of the study from a total of 133 prescriptions found potential drug interactions in 509 cases. Drug interactions based on the mechanism of action, pharmacodynamics were found in 494 cases and 15 cases of pharmacokinetic . Based on the level of severity, there were interactions with 15 cases of mild severity, 287 cases of moderate severity and 217 cases of severe severity

College Students' Perceptions Toward Usability of Simulator Application as a Form of Virtual Experiment at the Distance Learning Nurdiana, Dian; Hasanah, Siti Hadijah; Maulana, Muhamad Riyan
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.269

The use of simulator applications as one of the learning media is used in face-to-face classes. Its use is rarely used to support distance learning. In fact, the distance learning process must have the same quality as face-to-face learning. The role of technology and media is one of the keys to success in conveying material to students. This study examines the use of simulator applications in distance learning in terms of its reusability. The simulator application used is Cisco Package Tracer on learning computer networks with modules as the main teaching material used by students. The use of this media aims to understand and practice computer network simulations. By involving 60 participants, a case study regarding usability feasibility was measured by using the USE Questionnaire which consisted of 4 usability dimensions: Usefulness, Ease of Use, Ease of Learning, and Satisfaction. The findings show that the use of simulator applications in distance learning gets good or positive responses in the context of usability. This shows that the use of simulator applications is suitable for use in distance learning.

Analgetic Effects of Kangkung (Ipomea reptans Poir) Extract on Swiss Webstesr Mice Handayani, Andi Ika Julianti; Hidayat, Saepul
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.288

One of the efficacious plants as an empirical analytic is kangkung (Ipomea reptans Poir). The purpose of this study was to determine the analgesic effect of kangkung and determine the dose of kangkung extract compared to ibuprofen. The benefit of this research is to know the analgesic effect of kangkung extract. The contents of extract kangkung are flavonoids. The research method of this experimental test is divided into 5 groups, each group consisting of 5 mice with weight 20-30 grams and age 2-3 months. Group 1 Negative control (Aquadest), group II Positive control (the suspension of ibuprofen), group III, IV, and V respectively were given the ground kangkung extract dose 6 mg/30 g, 12 mg/30 g, 24 mg/30 g. The treatment is administered orally, and for the introduction of the induction using acetic acid 0.5% dose 0.2 ml/20 g mice are intraperitonial. The result of analyzed by Test homogeneity followed by a Variant analyze Test (ANOVA) one way with SPSS for window version 16. The homogenized results of the research of extract kangkung land extract (P = 0.24), a one-way test is obtained significant result 0.00, the dose I, II, III differs significantly with negative and positive control. Conclusion of the ground Kangkung extract has an analytic effect by lowering the amount of stretched. The results showed at a dose of 28 mg/30 g mice caused the best analytic effect among the variations of the dose tested.

Comparative Analysis of Network Development Local Area Network (LAN) Fiber Optical Cable with Unshielded Twisted Pair (UTP) Cat 6 Cable at SMK Negeri 2 Tasikmalaya Ashari, Ami; Rubiani, Hani; Manova, Yovi
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.286

The LAN Network at SMK Negeri 2 Tasikmalaya previously used media UTP Cat5e network with poor performance due to bandwidth UTP Cat5e is only 200 Mb/s, therefore the school choose to replace it network media with fiber optics, with a bandwidth that can reach 1 Gb/s. On the other there is still UTP Cat6 with the same bandwidth of 1Gb/s at a cost installation is lower than fiber optic network installation. Data collection on performance is carried out using the Quality of Service (QoS) approach with the parameters measured, namely Delay, Jitter, Packet loss and Throughput using Wireshark software. Performance of fiber optic and UTP Cat6 networks at SMK Negeri 2 Tasikmalaya in categorize â€œGoodâ€ according to Telecommunications and Internet Protocol Hormonization Over Network (TIPHON) standards. Test results from optical fiber obtained a delay of 2.58 ms, jitter of 2.38 ms, packet loss of 0.254 and throughput of 805.92 Mbps. The test results of the UTP Cat6 cable were obtained delay of 5.59 ms, jitter of 5.21 ms, packet loss of 0.559 and throughput of 623.73 Mbps.

Evaluation of the Use Off Label Drugs At the Obstetrics and Gynecology Polyclinic at Bandung Private General Hospital Rahayu, Susi Afrianti; Santika, Nita
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.290

Off label drugs are drugs outside the indications listed on the label or outside the approval by the authorized institution. This research is a non-experimental type of research that is presented in a quantitative descriptive manner with retrospective data collection. The research sample is the same as the population (total sampling), namely all prescriptions containing off label drugs from an obstetrics and gynecology polyclinic at a private public hospital in Bandung district from May to August 2021. The purpose of the study was to evaluate the use of off label drugs in the indication category based on age, domicile, the type and use of off label drugs. The data obtained from this study were 154 drug users. off label, based on the age range of adolescents 27 (18%), adults 111 (72%), middle 16 (10%), while based on domicile most of the patients came from Baleendah sub-district 37 (24%). The types of drugs used were Mefenamic Acid 38%, Dexamethasone 3%, Metformin 12%, Misoprostol 23%, Nifedipine 8% and Ondansetron 16%. Patients using off label drugs are more common in adults with the drug used is mefenamic acid.

Yemeni and regional maritime doctrine in light of the decline of the liberal theory of freedom of navigation in EEZ Humran, Mohammed Ali
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.285

The presence of the USCENTCOM , AFRICOM Â and 34 foreign countries in the vital Yemeni, Arab, and national maritime spheres contributed to a flagrant violation of maritime laws and international political relations. Likewise, the presence and activities of the strategic and tactical military naval units of the aircraft carrier, submarines, and American and British nuclear naval destroyers in the Red Sea. The Gulf of Aden is a breach and violation of international law and agreements regulating freedom of navigation and a blatant assault on Yemeni sovereignty in its vital maritime sphere, as it is located in exclusive Yemeni economic waters, in addition to its nuclear effects in destroying the marine environment and human security. It constitutes a source of danger to food and maritime security, stability, and international peace. The study aims to clarify the influence of Western geopolitical thought and the behavior of American foreign policy in international relations and maritime laws, which is witnessing a major decline and failure in its global policy because it used the policy of American military force to achieve its own political goals and imposed the methodology of Western liberal maritime thought to control and limit the rights of the Yemeni, Arab, and Islamic coastal states. Which contradicts customs, laws, and agreements and affects historical rights and the Yemeni, Arab, and regional maritime domain. The study is expected to confirm the modern Yemeni, Arab, and Islamic hypothesis that the high seas and international maritime waters are within a distance of 200 nautical miles from the baseline and to affirm the right of Yemen and the Arab nation to be protected. The vital area of the United Arab Emirates and the Islamic and regional countries extends from the Atlantic Ocean to the Mediterranean, the Arabian Gulf, the eastern and western Indian Ocean to the Antarctic Ocean, and there is a call for holding maritime conferences in order to develop traditional Western maritime legal theories and concepts that seek to limit the rights of coastal states, establish perceptions, and reach an update to the laws regulating freedom of maritime navigation in accordance with the views of the peoples of the world and in response to global changes in multipolarity.

Supply Control Of Oil Filter Spareparts Using EOQ And Min-Max Methods Based On Sales Forecast (Case Study: PT Astra International Tbk Soekarno Hatta) Arfemitha, Nurlia Asih; Supian, Sudradjat; Nahar, Julita
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.284

Planning and controlling product inventory is very important for a company to ensure demand is met and maximize profits from sales effectively and efficiently. In addition, inventory planning and control are carried out to prevent excess or shortage of inventory. This study aims to predict sales and calculate inventory control to overcome excess stock and increased inventory costs on oil filter spare parts. The forecasting method used is Holt's Double Exponential Smoothing method to determine the number of sales of the four types of oil filter spare parts in the future and overcome the problem of oil filter spare parts inventory using the EOQ and Min-Max methods. Based on the research results, the resulting forecasting is accurate and the EOQ method results in a lower total inventory cost than the Min-Max method.

Citronella (Cymbopogon nardus (L.) Rendle) Leaves Infusion: Sedative Activity in Swiss-Webster Strain Male Mice Vitamia, Cszahreyloren; Handayani, Wahyuni Mega
International Journal of Global Operations Research Vol. 5 No. 1 (2024): International Journal of Global Operations Research (IJGOR), February 2024
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v5i1.289

Insomnia is one of the sleep disorders and more severe symptoms can culminate in the onset of stress disorder. The high threat of being affected by COVID-19 causes insomnia, so drugs such as sedatives are required to treat this disorder. Research has been carried out on the sedative activity of infusion of citronella leaves (Cymbopogon nardus (L.) Rendle) in Swiss webster strains of male mice by the traction test method. The study used twenty-five mice randomly divided into five groups. Each group was given different preparations such as negative control given Na CMC 0.5%, the positive control group was given suspension of diazepam and the infusion group of citronella leaves with concentrations of 10% w/v, 30% w/v and 50% w/v as the test groups sequentially. The results showed that citronella leaves infusion had increased sedative activity along with in conjunction with an increment in test concentration. The infusion concentration of citronella leaves that have maximum sedative activity was found at a concentration of 50% w/v in the variations tested and have significantly different results compared to the control group.

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Editorial Address Jl. Merkuri Timur VI No. 1, RT. 007, RW. 004, Manjahlega, Rancasari, Kota Bandung, Jawa Barat, INDONESIA

Location Kota bandung, Jawa barat INDONESIA

Abstract

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Contact Name
-

Contact Email
ijgor.iorajournal@gmail.com

Phone
+6285841953112

Journal Mail Official
ijgor.iorajournal@gmail.com

Editorial Address
Jl. Merkuri Timur VI No. 1, RT. 007, RW. 004, Manjahlega, Rancasari, Kota Bandung, Jawa Barat, INDONESIA

Location
Kota bandung,

Jawa barat

INDONESIA