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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 670 Documents
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Association Between Patient Knowledge and The Success of Retainer Treatment In Preventing Orthodontic Relapse Among Adolescents: A Cross-Sectional Study Arya Brahmanta; Meralda Rossy Syahdinda; Budi Handayani; Bambang Sucahyo
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.790

Abstract

Background: Orthodontic relapse remains a common complication after active treatment, with reported rates of 70-90% during the retention period, and retainer-related failure is a major contributing factor. Because the long-term stability of orthodontic correction depends heavily on the patient's own adherence to retainer wear, patient knowledge of the purpose, protocol, and consequences of neglecting retention is considered an important determinant of treatment success, yet this relationship has received limited attention in the orthodontic literature. Objective: This study aimed to evaluate the association between patient knowledge and the success of retainer treatment in preventing orthodontic relapse. Materials and Methods: This retrospective cross-sectional study included 33 orthodontic patients over 18 years of age who were undergoing the retention phase after active treatment at Nala Husada Dental Hospital, Surabaya, Indonesia, between November 2024 and February 2025. Data were collected using a structured online questionnaire distributed through Google Forms, consisting of 12 items covering patient knowledge, therapeutic communication, and compliance regarding retainer use. Responses were coded numerically, and the association between patient knowledge and the success rate of retainer treatment was analyzed using the Spearman rank correlation test, with statistical significance set at p<0.05. Results: Female participants constituted the majority of respondents (81.8%). Most participants demonstrated a very good level of knowledge regarding retainer treatment (72.7%), while 18.2% had poor knowledge and 9.1% had very poor knowledge. A significant positive correlation was found between patient knowledge and the success rate of retainer treatment (r=0.671; p=0.024), indicating a strong relationship: patients with greater knowledge of retainer care achieved more successful treatment outcomes. Conclusion: Patient knowledge was significantly associated with the success of retainer treatment in preventing orthodontic relapse. These findings underscore the importance of structured patient education during the retention phase to improve long-term orthodontic stability.
A Systematic Review of The Characteristics of Herbal Formulations Using Various Ratios of Natural Coating Materials and Their Benefits For Meat Harvey Febrianta; Bitsyi Naviri Ismaniar
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.794

Abstract

Herbal plants contain various secondary metabolites that serve both as plant defense mechanisms and as therapeutic agents for the human body. Additionally, compounds such as alkaloids (e.g., caffeine or curcumin) exhibit stimulating or analgesic effects, while many of these components are utilized as astringents to treat wounds and digestive issues. Therefore, we conducted a systematic literature review of published studies regarding various herbal plants and coating material ratios applied to meat, examining aspects such as composition, application methods, and outcomes. Data extraction from the Scopus database yielded over 500 titles related to various herbal plants and natural encapsulants. A screening process subsequently identified 20 relevant journals for in-depth analysis in this systematic review. The mapping and analysis of these articles indicate that the use of coating materials—applied at varying concentrations to herbal plant extracts—can provide optimal protection for antibacterial and antioxidant components.
Mothers’ Knowledge of Complementary Feeding and Toddlers’Nutritional Status, Bogor Regency Susiana Jansen; Rokhaidah; Lina Ayu Marcelina; Lusyta Puri Arhiyanti
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.795

Abstract

Background: Fulfillment of nutritional needs through complementary feeding is strongly influenced by mothers’knowledge. Knowledge determines the mothers’ability to choose food ingredients, determine the amount and frequency of feeding, adjust food texture, maintain hygiene during processing, and prepare menus that suit the child's needs. Poor nutritional status is an early symptom of stunting. Children with poor nutritional status often experience developmental delays that include social, language, fine and gross motor skills, and cognitive abilities. Nutritional problems in children remain a concern in Bogor Regency. A modeling of the causes of stunting in rural areas of Bogor Regency reported a stunting prevalence of 18.7% and confirmed that maternal education, socioeconomic status, non-exclusive breastfeeding, water and sanitation conditions, and access to health services are related to the complexity ofthe stunting problem. This study is important not only to examine the relationship between variables, but also to support realistic promotive and preventive interventions to improve the nutritional status of children in Bogor Regency. Objective: To analyze maternal knowledge regarding the nutritional status of toddlers in Bogor Regency, West Java. Method: This study used a cross-sectional method, with a sample of 106 respondents who were pairs of mothers with toddlers in Bogor Regency, West Java. Results: Maternal knowledge about complementary feeding did not show a significant relationship with toddler nutritional status. This may be due to knowledge not being fully implemented in practice, limited access to food and household resources, and the influence of biological and environmental factors. This interpretation is more cautiousand consistent with the findings of recent journal studies that also report weak or no significant associations between caregiver knowledge and child nutritional status.
Policy Analysis of The Family Hope Program (PKH): From Context, Input, Process, Product As A Manifestation of Economic Independence Nurinda Ibrahim; Zulaecha Ngiu; Udin Hamim
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.796

Abstract

This study aims to analyze the implementation of the Family Hope Program (PKH) policy based on the perspective of Context, Input, Process, and Product (CIPP) and explain its contribution to the realization of economic independence of beneficiary families in Kota Utara District, Gorontalo City. The research uses a qualitative approach with data collection techniques through observation, in-depth interviews, and documentation of PKH companions, beneficiary families, government officials, and related parties in East Wongkaditi Village and West Wongkaditi Village. Data analysis is carried out through data reduction, data presentation, and conclusion drawn. The results of the study show that in the context aspect, PKH is still very relevant to the socio-economic conditions of the community which is dominated by low-income groups and dependent on the informal sector so that the program becomes an important instrument in meeting the needs of education and health. In the input aspect, the implementation of the program is supported by regulations, funding, and information systems, but still faces limitations in the number of companions, inaccurate data on beneficiary families, and limited support facilities. In terms of the process, the verification mechanism, distribution of assistance, and assistance have run according to the provisions, but their effectiveness is still influenced by inter-agency coordination, the quality of assistance, and technical obstacles in the implementation of the program. In terms of product, PKH is able to increase access to education and health and reduce the burden of household expenses, but it has not been fully able to encourage the realization of economic independence for beneficiary families in a sustainable manner. This study recommends strengthening the synergy of PKH with economic empowerment programs, increasing the capacity of companions, updating beneficiary data regularly, and developing an evaluation system oriented towards achieving economic independence. This study concludes that the effectiveness of PKH is not only determined by the success of the distribution of social assistance, but also by the ability of policies to transform beneficiary families into economically independent families through the implementation of integrated and sustainable policies.
Strengthening Civic Competence Through The Tanggomo Digital Repository In Paguyaman Pantai District, Boalemo Regency Mais Nurdin; Rasid Yunus; Sastro M. Wantu
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.799

Abstract

Civic Education plays a strategic role in shaping citizens who are intelligent, principled, and responsible. One source of civic values rooted in the local wisdom of the Gorontalo community is the Tanggomo oral literary tradition. However, this tradition has become increasingly marginalized as a result of globalization, changing communication patterns, and the dominance of digital media. This study aims to describe the strengthening of civic competence through the Tanggomo digital repository, as well as the role of the digital repository in preserving the local culture of the Tanggomo oral literary tradition in Paguyaman Pantai District, Boalemo Regency. The study employed a descriptive qualitative approach using observation, interviews, and documentation involving the district head, customary leaders, teachers, students, community members, and youth, and the data were analyzed through data reduction, data display, and conclusion drawing. The results show that the strengthening of civic competence through the Tanggomo digital repository is realized in three aspects: civic knowledge, in which Tanggomo serves as a source of knowledge about norms, customs, history, and local identity; civic skills, namely the community’s ability to interpret, communicate, and reflect on cultural messages; and civic disposition, in the form of instilling attitudes of responsibility, social care, and respect for custom. The role of the digital repository, in turn, encompasses strengthening cultural meaning, expanding cultural transmission, and protecting cultural values. The digital repository proves to be a bridge between the preservation of local culture and the strengthening of civic competence in the digital era, and at the same time an adaptive strategy for maintaining the continuity of the Tanggomo tradition across generations.
Political Preferences of First-Time Voters In The 2024 Simultaneous Regional Elections In Boalemo Regency, Gorontalo Province Ais Nurdin; Ramli Mahmud; Lucyane Djaafar
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.800

Abstract

The political preferences of first-time voters constitute an important aspect in determining the quality of local democracy. This study aims to describe the political preferences of first-time voters and the factors that shape them in the 2024 Simultaneous Regional Elections in Boalemo Regency, Gorontalo Province. The research employed a descriptive qualitative approach, using observation, in-depth interviews, and documentation involving the General Elections Commission, the Elections Supervisory Body, the National Unity and Politics Office, and first-time voters; the data were then analyzed through data reduction, data display, and conclusion drawing. The results show that the political preferences of first-time voters are formed through three indicators, namely political values (rights, efficacy, relevance, and authenticity), political perceptions (civic education, environmental habituation, and digital agitation), and political inclinations that are both rational and emotional. Although the participation rate reached 82.78%, the political choices of first-time voters were not yet fully rational because they remained influenced by emotional aspects. The factors that determine these political preferences include the social environment (peers and organizations/communities), the family (the tendency to follow parents and family political communication), and social media (access to digital information, the shaping of candidate image, and disinformation and hate speech). This study affirms that the sustained strengthening of political education and digital literacy is greatly needed so that first-time voters may grow into critical, independent, and responsible subjects of democracy.
Two-Dimensional Magnetotelluric Resistivity Correlation For Estimating The Depth and Distribution of The Geothermal Top Reservoir In Babakan Bogor, Kepahiang Melly Angglena; Fhandy Pandey; Mey Chyntia Yesaya
International Journal of Science and Environment (IJSE) Vol. 6 No. 3 (2026): August 2026
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.v6i3.809

Abstract

Kepahiang Regency, Bengkulu Province, hosts an active hydrothermal system on the flank of the Mount Kaba volcanic complex, marked by hot springs and fumaroles around Babakan Bogor and Air Sempiang, yet subsurface information on the depth and lateral extent of its geothermal top reservoir remains limited. This study estimates the depth and spatial distribution of the top reservoir in Babakan Bogor by correlating three new magnetotelluric (MT) soundings (T1, T2, T3), spaced 0.8–1.3 km apart along a west–east line, into a two-dimensional resistivity cross-section. Data were acquired across low (128 Hz), medium (1024 Hz), and high (4096 Hz) frequency bands, processed using a robust, remote-reference-based approach, and interpreted following a three-layer conceptual model of cap rock, reservoir, and hot rock calibrated against previous Kepahiang and Bogor-segment MT studies. The resulting cross-section reveals two shallower reservoir compartments flanking a markedly thickened cap rock beneath the central station, with a resistive hot-rock body rising toward the surface beneath the western reservoir. The top reservoir shallows to about 0.5–2 km near the western station, closest to the surface manifestation, and deepens beyond 4 km toward the centre and east of the line. This geometry mirrors the neighbouring Bogor-segment section reported in earlier work and is independently supported by gravity modelling of the same area. These findings indicate that reservoir accessibility along the Bogor Fault segment is governed by structural position rather than by a uniform regional depth, and they provide a spatial framework to guide the siting of subsequent exploration lines and wells in the Kepahiang geothermal system.
Automatic University Course Scheduling Using A Multi-Constraint Genetic Algorithm For Room and Time Optimization Sapriansyah; Heny Pratiwi; Ahmad Fahrijal Pukeng
International Journal of Science and Environment (IJSE) Vol. 6 No. 4 (2026): November 2026
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.v6i4.810

Abstract

University course scheduling required simultaneous handling of resource conflicts, room capacity, and schedule quality. This study developed a Multi-Constraint Genetic Algorithm (MCGA) for automatic course scheduling using institutional data from STMIK Widya Cipta Dharma. The final dataset contained 141 optimized course offerings, 12 candidate rooms, five scheduling days, and six nominal time slots; room-capacity compliance was evaluable for 129 offerings (91.49%). A Standard Genetic Algorithm and MCGA were evaluated using identical feasibility domains and hard-conflict repair mechanisms. One-factor-at-a-time screening selected a population of 100, 500 generations, a crossover rate of 0.80, and a mutation rate of 0.02. Across 20 paired runs, both algorithms achieved zero lecturer, room, and cohort conflicts, with zero capacity excess among course offerings for which validated class-size data were available. MCGA increased mean room utilization from 0.6085 to 0.7800 and reduced mean cohort-day time gaps from 11.85 to zero. Paired Wilcoxon tests confirmed significant improvements in room utilization and time-gap reduction. The results showed that hierarchical feasibility handling combined with weighted post-feasibility objectives improved the quality of feasible university schedules without a material runtime penalty.
Laboratory Assistant Performance Analysis At STMIK Widya Cipta Dharma Using K-Means Alisa Nuraini; Heny Pratiwi; Ahmad Fajri
International Journal of Science and Environment (IJSE) Vol. 6 No. 4 (2026): November 2026
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.v6i4.817

Abstract

Laboratory assistants play a crucial role in supporting computer science practicum learning; however, conventional evaluation methods based on agregate average scores are unable to identify hidden performance patterns and characteristics. This study aims to analyze the patterns and characteristics of laboratory assistant performance at STMIK Widya Cipta Dharma using an Educational Data Mining approach based on the K-Means clustering algorithm. This study employed a quantitative research method using questionnaire data collected from 178 student respo ndents with ten performance indicators measured using a five-point Likert scale. The analysis process consisted of several stages, including data collection, data preprocessing through data cleaning and attribute selection, instrument testing using Pearson Product Moment validity and Cronbach’s Alpha reliability analysis, Z-Score normalization to standardize indicator values, K-Means clustering using Euclidean distance calculations, evaluation of optimal cluster numbers using the Elbow Method, Silhouette Score, and Davies-Bouldin Index (DBI), and Principal Component Analysis (PCA) visualization for cluster interpretation. The results showed that the instrument was valid and reliable, and the K-Means algorithm produced three performance clusters consisting of Low Performance (20.8%), Medium Performance (55.1%), and High Performance (24.1%) groups.
Reconstruction of Compensation Rights For Communities Affected By Odor Pollution Through Synergy In Waste Management At Parit Enam Final Disposal Site Pangkalpinang City Decia Rahmadini Prawira; Reimaharsyahya Ramadhan; Laura Enggiyani; Muhammad Fahri; Rio Armanda Agustian
International Journal of Science and Environment (IJSE) Vol. 6 No. 4 (2026): November 2026
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.v6i4.818

Abstract

The guarantee of a good and healthy environment is a constitutional right of citizens as mandated by Article 28H paragraph (1) of the 1945 Constitution of the Republic of Indonesia and Law Number 18 of 2008 concerning Waste Management. This study aims to analyze the operational conditions and environmental dynamics at Parit Enam Final Disposal Site in Pangkalpinang C ity, evaluate the harmonization of technical regulations concerning compensation for negative impacts, and formulate a concept for reconstructing compensation rights based on sustainable governance synergy. The research method employed is empirical legal research (socio-legal research) using a sociological-juridical approach, combining field studies through in-depth interviews and observation with library research. The results show that, with accumulated waste reaching 184,992 m³/year, technical control efforts by the Environmental Agency have been implemented; however, the implementation of compensation for communities in the buffer zone still requires stronger technical legal foundations at the local level so that it can be implemented in a more structured and transparent manner. This study recommends reconstructing compensation rights by transforming them from a passive scheme into a participatory empowerment scheme based on three main pillars: occupational health and safety, environmental infrastructure improvement, and community circular-economic empowerment through the integration of organic waste processing. Collaborative synergy among local government, communities, and the private sector is key to realizing environmental justice and sustainable urban governance.

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