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International Journal of Science and Environment
Published by CV. Inara
ISSN : -     EISSN : 28090551     DOI : https://doi.org/10.51601/ijse.v2i4
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics
International Journal of Science and Environment (IJSE) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Science and Environment . Original theoretical work and application-based studies, which contributes to a better understanding all fields of Science and Environment. The aim and scope of the journal Chemistry, Chemical Analysis, Physical Chemistry, Physics, Biology, Ecology, Biodiversity, Zoology, Biochemistry, Mathematics, Environmental Science, Agriculture, Environment, Forestry.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 300 Documents
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Operational Efficiency Analysis and Ebitda Improvement Strategies: A Case Study of Indonesian Construction Chemicals Distribution Ilman, Faldy
International Journal of Science and Environment (IJSE) Vol. 5 No. 4 (2025): November 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i4.278

Abstract

This study investigates the operational efficiency paradox in a mid-sized Indonesian construction chemicals distributor experiencing significant revenue growth (73.4% from 2022-2024) alongside declining EBITDA margins (from 7.07% to 6.50%). Using Activity-Based Costing, Value Stream Mapping, Porter's Value Chain Analysis, and industry benchmarking, the research identified seven critical operational inefficiencies costing IDR 1.36-1.79 billion annually (37-48% of operating income). Key inefficiencies include inventory management deterioration (turnover declining from 13.21x to 9.60x), warehouse productivity deficits (20-36% below industry benchmarks), and technology underutilization. The study developed a comprehensive three-phase improvement roadmap requiring IDR 1.54 billion investment to generate IDR 2.32 billion in recurring annual savings, projecting operating margin improvement from 6.50% to 10.56%. Phase 1 quick wins (IDR 165M investment) deliver 311% ROI within 3 months, demonstrating self-funding viability. Benchmarking against industry standards validates improvement targets as conservative and achievable. The research contributes to operations management literature by demonstrating integrated framework application in emerging markets and provides practical guidance for mid-sized B2B distributors facing similar profitability challenges.
Prediction of Erosion Using The USLE Method in Community Oil Palm Plantations in Kualuh Selatan District, North Labuhanbatu Syawa Harahap, Fitra; Hilwa, Walida; Rauf, Abdul; Rahmanta, Rahmanta; Harahap, Arman; Sulaiman, Harahap; Sudarijah; Mohamad , Siarudin; Syafrudin , Syafii; Muhammad , Rizwan; Indra, Gunawan
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.280

Abstract

The process of erosion leads to the loss of fertile topsoil and a reduction in the soil's capacity to store and absorb water. At the research site, community oil palm plantations in Tanjung Pasir Village, Kualuh Selatan District, North Labuhanbatu Regency, land clearing was conducted through logging, and in some cases, burning. Subsequent plantation management was carried out without implementing soil conservation measures and while disregarding environmental factors, resulting in soil degradation and productivity decline linked to erosion. This study aims to predict the magnitude of erosion using the Universal Soil Loss Equation (USLE) method, calculate the tolerable soil loss, and analyze the erosion hazard level. The USLE method was applied by calculating the causative factors of erosion: rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), cover management (C), and conservation practices (P). The predicted erosion values were then compared to the tolerable soil loss values to determine the necessity of conservation interventions. The results indicate that the highest predicted erosion value (A) was 521.73 tons/ha/year on plot KS1, while the lowest was 111.09 tons/ha/year on plot KS5. Meanwhile, the tolerable soil loss (TSL) ranged from 43.86 to 64.38 tons/ha/year. Based on this comparison, two classes of erosion hazard were identified: very high and high. Both classes exhibited predicted erosion values far exceeding the permissible limits. Therefore, conservation measures are imperative, one of which involves planting dense Legume Cover Crops (LCC).  
The Impact of Green Marketing on Environmentally Friendly Consumer Behavior in Restaurants in Medan City Maruli Tua Pandiangan, Saut; Alexander Gultom, Josua; Luci Lumbanraja, Pretty; Novandi Tambunan, Hotbona; Betty Tiomsi Simamora, Sarah
International Journal of Science and Environment (IJSE) Vol. 5 No. 4 (2025): November 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i4.286

Abstract

One of the main issues that is a concern for environmental damage is the decline in awareness of environmentally friendly consumer behavior, such as the lack of clear information about environmentally friendly products, higher prices for environmentally friendly products, and the lack of ease in finding and purchasing these products. The problem of declining awareness of environmentally friendly consumer behavior and several factors contributing to this decline have given rise to solutions to environmental issues through green marketing, which includes green product, green price, green place, and green promotion. This study aims to identify the characteristics of environmentally friendly consumer, analyze the impact of green marketing on environmentally friendly consumer behavior, and explore innovative strategies for implementing green marketing policies on environmentally friendly consumer behavior in Restaurants in Medan City. This study used a mixed-methods data analysis approach, incorporating qualitative and quantitative analysis, with 100 respondents representing environmentally friendly consumers in Restaurants in Medan City. Data analysis was conducted using descriptive analysis, multiple linear regression analysis, and the quadruple helix model. The results show that green product variable has a positive and significant effect on environmentally friendly consumer behavior in Restaurants in Medan City. Green price variable has a positive and significant effect on environmentally friendly consumer behavior in Restaurants in Medan City. Green place variable has a positive and significant effect on environmentally friendly consumer behavior in Restaurants in Medan City. Green promotion variable has a positive and significant effect on environmentally friendly consumer behavior in Restaurants in Medan City.
Integration of A Web Mdvr Howen Vehicle Surveillance System (Vss) and An Artificial Intelligence Based in Car Camera (Icc) For Fleet Safety PT. Putra Perkasa Abadi Jobsite Adaro Indonesia Gianina, Lovina; Khadafi, Muammer; Farzan, Arizal; Abidin, Zainal
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.288

Abstract

The main technology widely applied is the Vehicle Surveillance System (VSS) Web MDVR Howen, a digital surveillance platform that utilizes Mobile Digital Video Recorder, multi angle cameras, GPS, and AI alarms to monitor vehicle activity in real time. The combination of visual data, AI alarms, and behavioral analytics, this system supports the process of recording, validating, and analyzing events. This AI based integration is in line with the needs of modern industry to improve fleet safety, operational efficiency, and compliance with evidence based safety standards. The research aims to analyze the integration of the VSS Web MDVR Howen system and Artificial Intelligence based In Car Camera (ICC) for fleet safety. This research uses a qualitative descriptive method. VSS Web MDVR Howen and AI based In Car Camera (ICC) are two complementary fleet surveillance technologies to form a comprehensive driving safety system. The integration of the VSS Web MDVR Howen system and Artificial Intelligence based In Car Camera (ICC) has been proven to be able to improve the safety of the PT Putra Perkasa Abadi Jobsite Adaro Indonesia fleet through real time monitoring of vehicle conditions and driver behavior. Data analysis from October–November 2025 showed that this technology effectively detected critical deviations such as fatigue and drowsiness, which are key risks, while maintaining compliance with other aspects such as phone bans and camera closures. AI based monitoring enables rapid intervention, automated alerts, and the provision of accurate data for safety evaluation, helping companies strengthen a safe work culture, improve compliance with SOPs, and significantly reduce the potential for accidents.
Legal Analysis of the Judge's Decision on the Implementation of Article 93 Paragraph 1 Based on Law No. 45 of 2009 Concerning Fisheries (Decision Study No. 317/Pid.Sus/2013/PU. RHL) Siahaan, Henryco; Ansyari Siregar, Ahmad; Siahaan, Nimrot
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.289

Abstract

This study aims to analyze the application of Article 93 paragraph (1) of Law No. 45 of 2009 concerning Fisheries in Decision No. 317/Pid.Sus/2013/PN.RHL. The focus of the study is on proving the elements of the crime, the suitability of the evidence used, and the judge's legal considerations in issuing the decision. The method used is normative legal research with a statutory approach and a case approach. The results of the study indicate that all elements of the crime regulated in Article 93 paragraph (1) have been fulfilled through valid evidence based on Article 184 of the Criminal Procedure Code. The judge in this case is considered to have applied the provisions of the article appropriately, both in terms of evidence and legal considerations. However, the decision still has weaknesses in terms of strengthening ecological aspects and deterrent effects on perpetrators of fisheries crimes. Therefore, a more comprehensive legal approach is needed that not only provides criminal sanctions, but also considers environmental losses and the need for sustainable protection of marine resources.
Optimizing The Role of The Riau Regional Police Mobile Brigade Unit in Countering Radicalism Based on Law No. 5 of 2018 Concerning The Eradication of Criminal Acts of Terrorism Barus, Lamhot; Ansyari Siregar, Ahmad; Siahaan, Nimrot
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.290

Abstract

Radicalism is a serious threat to national security that develops through various channels, including social media and transnational ideological networks. Riau Province, as a strategic region, has experienced radical actions that threaten security stability, thus requiring optimization of the role of law enforcement officers, particularly the Mobile Brigade Unit of the Riau Regional Police. This study aims to analyze the role of Mobile Brigade in countering radicalism based on Law Number 5 of 2018 concerning the Eradication of Criminal Acts of Terrorism. The research method used is normative juridical with a legislative approach, conceptual, and qualitative analysis. The results show that the Mobile Brigade of the Riau Regional Police plays a role in the preventive, repressive, and deradicalization support aspects, but its implementation still faces obstacles such as limited personnel, technological facilities, and cross-agency coordination. Optimization can be done through increasing personnel capacity, utilizing information technology, mapping vulnerable areas, and strengthening cooperation with the National Counterterrorism Agency (BNPT), Densus 88, and local governments. With this strategy, the Riau Regional Police Mobile Brigade is expected to be able to carry out its anti-radicalism function more effectively and measurably in accordance with the mandate of Law No. 5 of 2018.
Legal Analysis of the Criminal Act of Online Togel Gambling in Dirokan Hilir (Study of Decision No. 296/PID.B/2024/PN-RHL) Ramadhan Pery, Rizki; Risdalina, Risdalina; Kusno, Kusno
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.291

Abstract

The development of digital technology has led to an increase in online gambling practices in Indonesia. This article discusses a legal analysis of online gambling crimes based on Decision Number 296/Pid.B/2024/PN Rokan Hilir, in which the defendant Marihot Sitinjak was charged and sentenced for his actions as an online lottery bookie. This research uses a normative legal method based on court decision data. The results of the study show that the panel of judges stated that the defendant was legally and convincingly proven to have violated Article 303 paragraph (1) point 1 of the Criminal Code for offering and providing opportunities for gambling as a livelihood. This decision confirms the consistency of the application of the law to online gambling practices that are rampant in society. The Decision of the Rokan Hilir District Court Number 296/Pid.B/2024/PN Rhl stated that the defendant Marihot Sitinjak was proven guilty of conducting online lottery gambling as a livelihood, with a prison sentence of 1 year and 8 months based on Article 303 paragraph (1) point 1 of the Criminal Code. This verdict was issued on August 22, 2024, by the Panel of Judges led by Ahmad Rizal, SH, MH, after examining the Public Prosecutor's alternative charges and trial evidence.
Criminal Liability in Premeditated Murder Cases Through the Michat Application Christo Funakosi Simorangkir, Shadrach; Sriono, Sriono; Simon Tampubolon, Wahyu
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.292

Abstract

The development of information technology has had a significant impact on various aspects of life, including the modus operandi of criminal acts. This article discusses criminal liability in a case of premeditated murder mediated by the MICHAT friendship application. The case study focuses on the Bengkalis District Court Decision Number 186/Pid.B/2025/PN Bis, which sentenced defendant Arif Indra Lexmana Shiombing to 13 years in prison. This research uses a normative juridical method with a case study approach. The results show that the elements of intent and planning (dolus et premeditatio) in Article 340 of the Criminal Code are legally and convincingly proven, even though the initial motive was not to kill, but rather as a form of revenge for the fraud experienced by the defendant. These findings underscore the importance of adaptive law enforcement to technological developments, as well as the need for sociological and psychological considerations in sentencing.
The Role of Criminal Investigation Unit Investigators of Rokan Hilir Resort in Combating the Crime of Human Trafficking Based on Law No. 21 of 2007 Concerning the Crime of Human Trafficking and Human Rights Rio Pradana, Wahyu; Risdalina, Risdalina; Kusno, Kusno
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.293

Abstract

Human Trafficking (TPPO) is a serious crime that threatens human dignity and violates fundamental human rights, such as the right to freedom and protection from exploitation. Rokan Hilir Regency, as a border region with high mobility, is one of the areas prone to TIP. This study aims to analyze the role of investigators from the Criminal Investigation Unit (Satreskrim) of the Rokan Hilir Police in efforts to combat TIP based on Law Number 21 of 2007 concerning the Eradication of TIP and its compliance with human rights principles. The method used is an empirical juridical approach through a review of laws and regulations and analysis of field practices. The results of the study indicate that the role of investigators includes preventive, repressive, and coordinative actions, but there are still obstacles such as limited resources, lack of public understanding, and limited victim protection facilities. Synergy between agencies and improving the quality of human resources are key to effective law enforcement.It was concluded that the role of the Rokan Hilir Police Criminal Investigation Unit has been implemented in accordance with the mandate of Law No. 21 of 2007, but requires capacity building, increased inter-agency coordination, and a more victim-centric approach to increase the effectiveness of combating TPPO.
The Influence of Price and Network Quality on the Decision of Tri Card Users (A Case Study of Tri Card Consumers in Pondok Baru Village) Karimi, Karimi; Safri, Hayanuddin; Maulana, Rizkha; Firmansyah, Denny
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.294

Abstract

This study aims to determine the effect of price and network quality on user decisions. Respondents in this study were 70 people from the village of Central Pondok Baru who used the Tri cellular card. Based on the results of multiple linear regression analysis, it was concluded that price and network quality had an effect on usage decisions. In this study using research instruments in the form of validity and reliability tests. Validity means that the instrument can be used to measure what it is supposed to measure. While the instrument reliability means that when used to measure many times will produce the same data. Based on the results of the t test and significance, it is known to have a T Count of 3.327 and a significant level of 0.01 is less than 0.05. It can be concluded that the price variable partially has a significant effect on the user decision variable. This means, the results of the t-test also show the partial influence of network quality on user decisions based on the results of the t-test of 3,048 and a significant level of 0.03 which is smaller than 0.05, so it can be concluded that the product quality variable partially has a significant effect on usage decisions. The results of the F test or t test (simultaneous) show that the variables are price and user quality. This can be seen from the Fhitung of 16.106 > Ftable of 3.13 (16.106> 3.13).

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