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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 382 Documents
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Phytoplacton Community In The Asahan River As A Fish Cultivation Rosenta Purba, Ika
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.137

Abstract

This study aims to analyze the structure of the phytoplankton community in the Asahan River. Using a descriptive survey. Determination of the location of phytoplankton sampling was carried out by purposive sampling. The results showed that overall phytoplankton were found in three divisions Crysophyta, Cyanophyta and Chlorophyta and 17 genera. The highest relative abundance (KR) was found in the genus Pediastrum of 12.7 with a diversity index of an average of 2.39, an evenness index of 0.35 and a dominance index of 0.16. The results of the physical factor measurements are an average turbidity of 3.53 NTU, an average water temperature of 32oC and an average water pH of 6. The results of the average water chemical factor measurements are water DO of 5.15 ppm, BOD = 1.85 ppm, COD = 26.45 ppm, CO2 levels = 18.29 ppm and mercury (Hg) levels measured range from 0 - 0.05 ppm. In conclusion, the abundance of phytoplankton is in the low category with a moderate diversity index and the waters are classified as stable.
Operational Effectiveness of Unuja Mini Bank In Improving Sharia Financial Literacy of Students Alief Hidayatullah, Mohammad; Hakim, Lukman
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.138

Abstract

This study aims to describe and analyze the data-driven planning process implemented at Vocational High School (SMK) Negeri 1 Manado. Using a qualitative case study approach, data were collected through observation, interviews, and documentation from February to April 2025. The study focuses on three main stages: data-based identification of educational problems, root cause reflection, and the improvement of school programs and activities. The findings reveal that SMK Negeri 1 Manado systematically conducts problem identification using Education Report Card data and other internal data, involving various stakeholders. The root cause reflection is conducted collectively and systematically using gap analysis and data triangulation methods. Program improvements are designed based on identification and reflection results, with specific goals and measurable indicators, which are then incorporated into the Annual Work Plan and School Activity and Budget Plan. These stages form a sustainable data-driven planning cycle supported by proactive leadership and a collaborative culture within the school. This study contributes as a best practice model of evidence-based educational planning for school quality improvement.
Implications Of Brics Currency Formation On Indonesia's Economic Sovereignty Budi Iskandar, Franciscus; Christupa, Giliman; Bustomi, Yazidil; Lathif, Nazaruddin; Ul Hosnah, Asmak; Siswajanthy, Farahdinny; Sjofjan, Lindriyani
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.139

Abstract

The establishment of a BRICS currency by the alliance of Brazil, Russia, India, China, and South Africa aims to reduce reliance on the US dollar in international trade. This new currency is expected to enhance economic stability for BRICS member countries and mitigate exchange rate fluctuation risks. For Indonesia, an open economy highly dependent on international trade, the presence of a BRICS currency could impact national economic sovereignty. This study aims to analyze the potential effects of the BRICS currency on Indonesia's economic sovereignty, particularly in maintaining national economic stability amid changing global financial architecture. This research utilizes a qualitative approach with a descriptive case study to explore the implications of the BRICS currency on Indonesia's economic policy.  
Implementation of MobileNetV2 Architecture In Rice Disease Detection System Using Digital Images Aginta Pratama Ginting, Yudha; Gusti Ramadhan, Fadil; Josua Sinaga, Sophian
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.140

Abstract

Rice plant diseases pose a significant threat, reducing crop yields. Especially in agricultural areas such as the Tanjung Morawa region of Deli Serdang, accurate and rapid early detection is very difficult. Three main disease types, Bacterial Leaf Blight (BLB), Brown Spot, and Leaf Smut, are identified by the MobileNetV2 architecture in the rice disease detection system. The transfer learning method was employed to enhance training using local public data. Although metrics such as accuracy, precision, recall, and F1 score were used to measure performance, evaluation of the model showed that accuracy and detection efficiency had improved compared to traditional methods. By integrating this system into a Flask-based web application, users can upload photos of rice leaves and receive detection results directly. It is expected that this research will make a significant contribution to the development of intelligent agricultural technologies that will help farmers find rice diseases early and treat them correctly.
Legal Study On The Perpetrators Of Extortion (Pungli) In The Aek Sijorni Tourist Spot In The Perspective Of Law No. 31 Of 1999 Jo. Law No. 20 Of 2001 Concerning The Eradication Of Criminal Acts Of Corruption Pane, Baginda; Abidin Pakpahan, Zainal; Toni, Toni
International Journal of Science and Environment (IJSE) Vol. 5 No. 4 (2025): November 2025
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i3.141

Abstract

The purpose of this study is to discuss extortion. Extortion is an abbreviation of illegal levies, which is the act of asking for something without a clear and official legal basis. Extortion is a form of extraordinary crime and is categorized as a criminal act of corruption regulated by law. Extortion often occurs due to abuse of office authority by an individual or group of individuals from a particular agency. Extortion activities often disturb the community. It even becomes a threat because the perpetrators often use threats or physical violence to achieve their goals. The type of research used is normative research, with an approach method through legislation. Results of the discussion: Extortion is an unlawful act that has been regulated in Law Number 20 of 2001 concerning Amendments to Law Number 31 of 1999 concerning the Eradication of Criminal Acts of Corruption concerning the eradication of criminal acts of corruption. Criminal sanctions for perpetrators of extortion are imposed under Article 368 of the Criminal Code which states that: "Anyone who, with the intention of unlawfully benefiting themselves or others, forces someone with violence or the threat of violence to give something, all or part of which belongs to that person or another person, or to create debt or eliminate receivables, is threatened with extortion, with a maximum imprisonment of nine years." 2. Government efforts to eradicate extortion: Limiting excessive procedures; Transparent in terms of requirements, time, and service costs for the community; Providing a complaint channel for the community if extortion occurs; Placing Satpol PP officers at every tourist location; Taking firm action against perpetrators of extortion.
The Effect of Fomo And The Principle of Qana’ah on The Panic Buying Behavior of Gen Z During Flash Sales of Fashion Products on The E-Commerce Platform Shopee Jamaluddin, Syakir; Sarni, Sarni; Setiadi Ramadhan, Cahyo
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.142

Abstract

The rapid development of digital marketing strategies in e-commerce has increasingly encouraged irrational consumer behavior during flash sales, particularly among Gen Z, who are more familiar with the digital world. This study aims to determine the effects of FOMO and the principle of qana'ah (contentment with what one has)on panic buying behavior in Gen Z during flash sales of fashion products on the e-commerce platform Shopee. The research employed a quantitative method, using primary data collected through questionnaires completed by 250 Gen Z respondents who are active Shopee users. The sampling technique employed was non-probability, purposive sampling, using a Likert scale questionnaire instrument. The data analysis involved validity and reliability tests, classical assumption tests, and multiple linear regression analysis with a focus on partial tests (t-tests). The data analysis was carried out using the Statistic Product and Service Solution (SPSS) software, version 25. The results show that (1) FOMO partially has a positive and significant effect on panic buying behavior; and (2) the principle of qana'ah partially does not have a significant effect on panic buying behavior.
Legal Review Of The Implementation Of Castration Law On Sexual Crime Perpetrators In Indonesia Nainggolan, Randa; Kusno, Kusno; Ansyari Siregar, Ahmad
International Journal of Science and Environment (IJSE) Vol. 5 No. 4 (2025): November 2025
Publisher : CV. Inara in Colaboration with www.stie-sampit.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i3.143

Abstract

The purpose of this study is to analyze the Implementation of Castration Law Against Sexual Crime Perpetrators in Indonesia. The type of research used in this writing is Normative Research, namely legal research conducted by examining library materials or secondary data. Discussion Results: The Implementation of Castration Law Against Sexual Crime Perpetrators in Indonesia has not been effectively implemented. This can be seen from the many cases of sexual crimes decided by judges, not containing additional criminal penalties in the form of castration for perpetrators of sexual crimes. In addition, the implementation of castration punishment for perpetrators of sexual crimes is still a pro and con for the community. Where the punishment is not in accordance with the criminal system regulated in the Criminal Code. Another reason that the implementation of castration punishment is unnecessary is because it clearly violates Law Number 39 of 2009 concerning Human Rights. Where perpetrators of crimes still have the opportunity to live and continue their descendants. Castration punishment is considered very cruel and cruel, and inhumane, even violating medical ethics.
Production Of Acid-Activated Bleaching Earth From Bentonite Clay For Edible Oil Bleaching Hailemariam, Tsiye
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.148

Abstract

The main aim of this study was to produce acid-activated bleaching earth from bentonite clay for edible oil bleaching, which is a clay mineral that can be used in its natural or acid-activated states to clarify and reduce the colour intensity of fats and edible oil. This study was conducted in two stages. The first involved the characterization of activated bentonite clay (moisture content and bulk density determination) and choosing an effect on acid-activated bleaching earth performance by considering the significant parameters, which are sulfuric acid concentration (1, 3, 5M), bleaching time (25, 40 and 60min) and dosage of acid-activated bleaching earth per millilitre of impure edible oil (1.5, 4.5, 6g). The raw bentonite clay acquired from Afar Bentonite Mineral Mining Plc. was activated by diluted sulfuric acid at a temperature of 90℃, neutralized, and the impure edible oil was prepared. A 3M acid concentration at a bleaching time of 40 min and 4.5 g of acid-activated bleaching earth dosage resulted in the highest percentage of colour reduction, which was 97%. In general, the findings of this study support the notion that bentonite clay is an effective adsorbent for edible oil bleaching. This study has strengthened the idea that acid-activated bentonite can eliminate pigments that are the result of different impurities, while also reducing the health impact of unqualified edible oil products. 
Study Of Coffee-Based Agroforestry Systems In Community Forests Susanto, Anang; Harahap, Arman
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.149

Abstract

Climate is an important factor in the growth and productivity of coffee plants. This research aims to determine the climate conditions regarding the use of shade on the development and productivity of coffee plants. This observation was carried out on agroforestry coffee plantations in Kare District, Madiun Regency. The coffee plants observed were 4 to 6 years old, and the shade used in the observations was Gamal, Dadap, and Sengon trees. Thus, based on the results of observations carried out over four months, it was found that the highest results were in Sengon stands, with an average of 27.2-27.7°C in January and March in terms of air temperature. Meanwhile, the highest observed humidity occurred in the first month and January at 76%. The highest wind speed occurs in April at 4 -5 km/hour. The highest intensity of light produced occurs in April at 8005 LUX. The results of these observations prove that the use of shade plants does not significantly affect the production and growth of coffee plants.
The Influence of School Principals' Transformational Leadership and Teachers' Self-Efficacy on Teacher Performance at SMP Negeri 1 Tomohon Pontoh, Suiling; Altje Meiske Rawis, Joulanda; Deity Meity Sumual , Shelty
International Journal of Science and Environment (IJSE) Vol. 5 No. 2 (2025): May 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i2.150

Abstract

This study aims to analyze the influence of transformational leadership of school principals and teacher self-efficacy on teacher performance at SMP Negeri 1 Tomohon. Employing a quantitative approach, data were collected through a survey involving 68 teachers using valid questionnaires. The analysis was conducted using SPSS, encompassing normality, linearity, and regression tests. The results indicate a significant influence between transformational leadership and teacher performance, with a correlation coefficient of 0.672. Teacher self-efficacy also made a positive contribution, evidenced by a significance value of 0.001 and a t-statistic of 6.107. Simultaneously, both variables explained 52.9% of the variance in teacher performance (R² = 0.529). These findings suggest that enhancing transformational leadership and teacher self-efficacy can improve the quality of education at SMP Negeri 1 Tomohon, serving as a reference for educational policymakers in formulating effective strategies.

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