Abstract:Menstruation is a physiological process that can cause regular iron loss in adolescent girls, thereby potentially reducing hemoglobin levels and increasing the risk of anemia if not balanced with adequate iron intake. The…
e research problem focuses on whether the consumption of iron supplementation tablets affects hemoglobin levels during menstruation among adolescent girls at SMK Maesan. This study aims to analyze the effect of iron supplementation on changes in hemoglobin levels using a quasi-experimental design with a control group pretest-posttest approach. The sample consisted of 30 respondents selected through purposive sampling based on inclusion criteria. Hemoglobin levels were measured using the cyanmethemoglobin or Sahli method, accompanied by standard procedures for administering iron supplements. The results of the Wilcoxon statistical test showed a p-value of 0.000 with α<0.05, indicating that the null hypothesis was rejected and the alternative hypothesis was accepted, meaning that there was a significant effect of iron supplementation on increasing hemoglobin levels during menstruation. These findings confirm that the intervention of iron supplementation is effective in improving hemoglobin levels in menstruating adolescent girls. The novelty of this study lies in emphasizing the effectiveness of controlled iron supplementation interventions among vocational high school adolescents using a pretest-posttest approach, thereby providing practical contributions to anemia prevention efforts from an early age through structured and sustainable school health programs.
Abstract:This study aims to analyze the influence of shipping cost efficiency and freight forwarder quality on export delivery performance at PT Sinar Sawit Sentosa, a palm oil exporting company facing challenges related to rising…
g logistics costs and increasing demands for delivery timeliness. The research problem focuses on the extent to which shipping cost efficiency and the quality of freight forwarder services can improve export delivery performance in a measurable and sustainable manner. A quantitative approach was applied by collecting survey data from the company’s logistics managers and export managers to capture perceptions and experiences related to the research variables. Data analysis was conducted using structural equation modeling to examine the causal relationships among shipping cost efficiency, freight forwarder quality, and export delivery performance. The results indicate that shipping cost efficiency has a positive and significant effect on export delivery performance through reduced operational costs, improved logistics coordination, and smoother export processes. Freight forwarder quality is also proven to have a positive and significant effect through enhanced service reliability, documentation accuracy, and delivery timeliness. The conclusion confirms that the combination of cost efficiency and logistics service quality constitutes a strategic factor determining the success of corporate export delivery. The novelty of this study lies in integrating the measurement of cost efficiency and freight forwarder quality using a SEM approach applied to the Indonesian palm oil export industry, a context that has received limited empirical attention. This contribution provides empirical evidence for the development of export logistics management and strategic decision-making, enriches the academic logistics literature, and offers practical implications for improving national export competitiveness, formulating corporate policies, and managing long-term logistics partnerships based on measurable performance and efficiency orientation. The findings are expected to serve as a reference for future research and professional practice in agribusiness sectors oriented toward global markets with high logistics risks and intense competition that demand continuous, data-driven managerial innovation grounded in reliable and context-specific empirical evidence for the future of national industries.
Abstract:This study was conducted to evaluate the quality of the electrical installation at Budi Bakti School Building in Samarinda by emphasizing aspects of reliability, safety, energy efficiency, and compliance with applicable…
electrical installation standards. The research approach involved field surveys to obtain empirical data, measurements of lighting intensity, calculations of the required number of lighting points according to the function and characteristics of each room, as well as technical analysis of installation components, including conductors and protection systems. All observed data were compared with theoretical calculations to identify the level of conformity as well as potential deviations that could cause problems. The findings indicate that although the electrical installation remains operational, there are significant discrepancies, particularly in the distribution of lighting intensity, the number of lighting points, and the selection and placement of protective components that do not fully meet the standards. These discrepancies affect the optimality of lighting, reduce user comfort, and present potential safety risks. Therefore, this study recommends adjustments to the installation design, prioritizing the optimization of the lighting system, the use of standard-compliant components, and the implementation of energy efficiency principles as part of a comprehensive improvement effort. The implications of these findings highlight that regular evaluations and updates of electrical installations in educational buildings are essential to create a safe, comfortable, and productive learning environment. Thus, the results of this research not only provide practical contributions for school management but also offer a scientific basis for developing technical standards of electrical installations that are more responsive to educational needs.
Abstract:Cooperatives are membership-based economic entities that play a vital role in driving the growth of the microeconomic sector and improving member welfare through the principles of economic democracy. The sustainability of…
f cooperative performance heavily depends on effective financial management, particularly in maximizing the utilization of cash, receivables, and assets to enhance profitability. This study aims to examine the influence of cash turnover, receivables turnover, and total asset turnover on the profitability of cooperatives, as measured by Return on Assets (ROA) as a financial performance indicator. The research employs a quantitative approach using multiple linear regression analysis, based on secondary data from cooperative financial statements covering the period from 2019 to 2024. The analysis results show that both simultaneously and partially, the three independent variables have a positive and significant effect on profitability. Cash turnover and total asset turnover are the primary determinants in improving ROA, reflecting the importance of efficiency in managing liquidity and productive assets. Meanwhile, although receivables turnover is also significant, it requires strict supervision in the implementation of credit policies to avoid an increase in non-performing receivables. These findings contribute empirical evidence to the literature on cooperative financial management and offer practical implications for cooperative managers in designing financial resource management strategies aimed at improving performance and business sustainability. Therefore, optimizing the management of cash, receivables, and assets should be a strategic priority within cooperative financial systems to withstand increasingly complex and competitive economic dynamics.
Abstract:Indonesia, as an archipelagic country, holds a geographically strategic position while also being vulnerable to various forms of transnational crimes, including the entry of illegal immigrants via maritime routes. Law enforcement…
forcement in maritime areas presents its own challenges due to the need to monitor vast territories, limited facilities and infrastructure, as well as the complex modus operandi employed by illegal immigration offenders. In this context, the Water Police (Pol-Air) serves as the main actor in maintaining maritime security and order, particularly in efforts to prevent the entry of illegal immigrants. This study aims to analyze the strategies and actions undertaken by Pol-Air in performing this function, as well as to evaluate the obstacles faced. The research method used is normative legal research with a qualitative approach, through analysis of existing laws and regulations as well as empirical practices in the field. The results of the study indicate that Pol-Air conducts various preventive measures, such as routine sea patrols in vulnerable areas, the use of maritime surveillance technology, improvement of personnel competencies, and public dissemination of immigration law among coastal communities as a form of participatory prevention. In addition, Pol-Air also engages in cross-sectoral coordination with relevant agencies to strengthen institutional synergy. Nevertheless, the implementation of Pol-Air's duties still faces structural and operational challenges, such as budget limitations, lack of integrated information systems, and weak law enforcement against human smuggling networks. Therefore, a reformulation of policies is needed to support institutional strengthening and sustainable inter-agency collaboration.
Abstract:This study aims to comprehensively investigate the influence of Social Media Marketing and Lifestyle on consumer Purchase Decisions, with Brand Awareness serving as a mediating variable that plays a pivotal role in the consumer…
onsumer decision-making process. The research adopts a causal-quantitative design, intended to identify and test the causal relationships among the predetermined variables. Primary data were collected through the distribution of questionnaires to 130 respondents, consisting of customers of CW Coffee in Pontianak City, West Kalimantan. Data analysis was conducted using the Structural Equation Modeling (SEM) technique based on Partial Least Squares (PLS), operated through SmartPLS 4 software, which facilitates simultaneous evaluation of both the measurement model (outer model) and the structural model (inner model). The model estimation results indicate that both Social Media Marketing and Lifestyle exert a positive and statistically significant effect on Brand Awareness, and contribute both directly and indirectly to Purchase Decisions. Furthermore, Brand Awareness is empirically validated as a partial mediator that reinforces the relationship between the independent variables and the dependent variable. The theoretical implications of these findings underscore that enhancing brand exposure through strategic social media engagement and contextually understanding contemporary consumer Lifestyles are critical determinants in shaping strong brand perceptions and driving purchase intention and realization. Consequently, this study offers practical contributions for business practitioners in formulating digital marketing strategies based on the integration of consumer values and the optimization of digital communication channels, thereby enhancing market penetration effectiveness and fostering long-term customer loyalty.
Abstract:This study aims to analyze and provide recommendations regarding the arrangement of pedestrian facilities in the Campus 1 area of Muhammadiyah University of Bengkulu. This area plays an important role as the center of academic,…
ademic, social, and mobility activities of the academic community, which heavily depends on pedestrian facilities. Field observations reveal several key issues with the pedestrian facilities in this area, including the sidewalk width not meeting the minimum standard, lack of accessibility features for people with disabilities, absence of vegetation or shade, and insufficient signage and road markings to guide users. These conditions result in discomfort and insecurity for pedestrians, as well as failing to support the principles of inclusivity in infrastructure planning. The research employs a descriptive qualitative and quantitative approach with a case study method. Data were collected through field observations, questionnaires, interviews, and literature reviews. Based on the analysis, the majority of respondents expressed the need for improvements to the sidewalk quality, addition of shade trees, enhanced accessibility for people with disabilities, and the installation of supporting facilities such as street lighting. The study then recommends several improvement measures, such as widening the sidewalks to at least 1.5 meters, providing ramps and Guiding blocks, planting vegetation along the pedestrian routes, and installing road signs and markings. These recommendations aim to improve pedestrian comfort and safety. It is hoped that the results of this study can serve as a reference for Muhammadiyah University of Bengkulu in creating a campus area that is more friendly, safe, comfortable, and inclusive for all users, while also supporting sustainable mobility.
Abstract:This study aims to examine the effect of self-efficacy, social support, and optimism on grit in TNI-AD Private members who took the regular Secaba (National Military Commission) transfer test. This study used a quantitative…
ive method with a correlational research design. The sample used was 50 randomly selected Private members. Data were collected through a questionnaire that measured the three independent variables (self-efficacy, social support, and optimism) and grit as the dependent variable. The results of the multiple linear regression analysis showed a significance value of 0.000, indicating that self-efficacy, social support, and optimism had a significant effect on grit. The results showed that social support made the largest contribution to increasing grit, followed by optimism and self-efficacy. Overall, the three variables contributed 75.4% to the grit level of TNI-AD Private members. This finding provides important insight that the combination of self-confidence, support from the surrounding environment, and an optimistic outlook can increase individual persistence in facing challenges, especially in the Secaba selection.
Abstract:East Java Province is a region with significant economic contribution in Indonesia, occupying the third position nationally with a contribution of 14.26%. However, despite its rapid economic growth, East Java still faces…
welfare challenges, especially in terms of poverty which is still relatively high compared to other provinces on the island of Java. The poverty rate in East Java is on a downward trend, but it still remains above the national average. This condition indicates an imbalance in the welfare of the community in the East Java region. Welfare is measured based on the ability of the community to meet decent, healthy, and productive basic needs, with the Human Development Index (HDI) as one of the main indicators. HDI can measure human development achievements based on several basic components of quality of life, including the education dimension, the age and health dimension, and the standard of decent living. Therefore, the government needs to group regions with appropriate characteristics to make it easier to make policies. One of the statistical analyses that can be used in this study is cluster analysis. The results of this study are that East Java Province in 2023 shows a diversity of welfare indicators, such as TPT, HDI, and AHH, reflecting differences in economic, educational, and health conditions between regions. The cluster method with the best assessment in this study is the K-Means method with five clusters. The characteristics in clusters I and II tend to have low welfare, while clusters III, IV, and V show better welfare. The results of this study show a change in the number of clusters compared to previous research conducted by Muhammad Fikry Al Farizi et al. in 2022. The previous study produced four clusters using the average linkage method.
Abstract:This study aims to create and implement a physics learning visualization tool that can be used to determine sound intensity. This teaching aid is designed to help students understand physics concepts related to sound waves…
es and their measurements in a more interactive and practical way. The research method used was a review of 20 articles. The results of literature studies can help students better understand the concept of sound intensity. They have the ability to directly see changes in sound intensity through interactive teaching aids. Based on the research results, it was concluded that this physics learning aid not only helps in learning the concept of sound intensity, but also increases students' motivation and interest in learning. The use of teaching aids/visualization is recommended in physics education at the upper secondary education level or equivalent, as an innovative and efficient learning medium.