The study aims to analyze the occupational safety and environmental health risks due to aircraft painting at the Hangar of PT. XYZ. The study is a descriptive study with a qualitative approach. The results of the study are the analysis of occupational safety risks seen from occupational safety risks and risk control. Occupational safety risks in aircraft painting activities at PT. XYZ are divided into several parts, namely (1) Exposure to hazardous chemicals is included in the high category; (2) The risk of work accidents is included in the moderate category; (3) Equipment damage is included in the low category; and (4) Fire is included in the low category. Risk control can be carried out by (1) Increasing strict supervision of the aircraft painting process; (2) Conducting appropriate occupational safety training for workers; (3) Using PPE; (4) Using adequate safety equipment; and (5) Carrying out proper equipment maintenance. The analysis of environmental health risks is seen from environmental health risks, sources of risk and risk control. Environmental health risks are divided into several parts, namely (1) Air pollution is included in the moderate category; (2) Soil and water contamination is included in the moderate category; and (3) Environmental damage is included in the moderate category. Sources of environmental health risks are the use of hazardous chemicals and painting waste. Risk control can be done by carrying out strict supervision, using safe chemicals and proper waste management.

This study aims to design and build a hydraulic system capable of operating hatch opening and closing automatically and manually, with the application of Internet of Things (IoT) technology to monitor and control the system remotely. This system is designed to improve efficiency and ease of hatch operation on ships or other industrial applications, as well as prevent fires in cargo due to several factors such as unintentional negligence of the ship's crew and also weather factors with increasing temperatures. Where the automatic system uses a rain sensor to optimize time and energy, while manual control remains available as a backup option. This design involves the integration of hydraulic actuators, rain drop sensors, microcontrollers, and IoT communication modules that allow users to control and monitor the position of the hatch through a web-based application or mobile device. In compiling this scientific paper, researchers use experimental methods. This study shows the results that testing will be carried out directly by researchers, by testing the performance of the prototype of the automatic and manual hatch opening and closing hydraulic system design tool based on IoT by testing the effectiveness of the control system and sensor performance. In conclusion, this system successfully combines hydraulic and IoT technology to create an efficient, safe, and easy-to-use solution in practical applications.

Listening ability is one of the basic language skills that is important in supporting the learning process of students in elementary schools. However, in practice, students still have difficulty in capturing information from listening materials, especially when learning is carried out conventionally without the support of interesting media. This study aims to analyze the ability to listen to information from audio media in grade VI elementary school students with a qualitative approach using the case study method. The steps of the case study method are determining the focus of the study, literature, determining the case, data processing, data analysis, negotiating the results of the study, and conclusions. The subjects of the study consisted of five students who were analyzed based on their answers to five thematic audio media-based listening questions. The results of the study showed that students were able to understand the contents of the story, recognize characters and traits, and capture moral messages from the listening materials. However, there were still shortcomings in the aspect of regularity in reorganizing information and in-depth understanding of the character of the character. The novelty of this study lies in the analytical approach based on mapping student difficulties and the use of audio media that is relevant to everyday life, which has been proven to increase students' imagination and involvement in listening activities. This study recommends the use of audio media in a varied and contextual way in learning Indonesian in elementary schools.
 
 

The purpose of the research was to analyze the gap between students' narrative writing knowledge and skills. This research employs a qualitative methodology, specifically descriptive qualitative research. Data is gathered using document study methods, which include gathering and examining written documents, photographs, artwork, and electronic devices. A systematic study is then created by analyzing, comparing, and synthesizing the collected documents. Based on the aforementioned data collection methods, the research tools used are the narrative text knowledge assessment sheet and the narrative text writing skills assessment sheet. It is possible to draw the conclusion that students' knowledge and proficiency in the narrative text material are lacking.

The ability to understand denotative and connotative meanings is important in supporting the development of students' literacy and critical thinking skills in elementary schools. However, in practice, students still have difficulty in distinguishing the two types of meanings, especially in the context of connotative sentences that are figurative and require contextual interpretation. This study aims to analyze the ability of sixth grade elementary school students to identify and understand denotative and connotative meanings through various forms of questions, namely multiple choice, fill-in-the-blank, and descriptive, with a qualitative approach using the case study method. The steps of the case study include determining the focus of the study, literature review, case selection, data collection, data processing, data analysis, negotiation of results, and conclusions. The subjects of the study consisted of five sixth grade elementary school students who were analyzed based on their answers to the instruments that had been prepared. The results of the study showed that students had a good basic understanding of denotative and connotative meanings in explicit form. However, they still had difficulty in interpreting connotative meanings contextually and figuratively. The novelty of this study lies in the use of a contextual learning approach that is relevant to students' social and cultural lives, which has been proven to improve students' ability to understand meaning reflectively and critically.
 

This study aims to analyze the implications of business law on consumer protection in e-commerce transactions in Indonesia. The results of the study indicate that business law plays an important role in protecting consumers in e-commerce transactions. However, the effectiveness of existing laws and regulations is still questionable because there are still many cases of fraud and unfair business practices. Therefore, this study suggests the need for improvements to laws and regulations, increased consumer awareness, effective supervision, and cooperation between the government and business actors to improve consumer protection in e-commerce transactions in Indonesia.

Research aims to design and develop a boiler system for heating Marine Fuel Oil (MFO) 180 CST by integrating Internet of Things (IoT) technology to enhance efficiency and operational monitoring. The methods used include boiler system design, selection of types and materials according to international standards, and the implementation of an optimal combustion system. IoT sensors are strategically placed to monitor key parameters such as temperature, pressure, and fluid flow in real-time. The collected data is transmitted to a cloud platform, enabling remote monitoring and automated performance analysis through a web or mobile-based application.. The research results indicate that IoT integration in the boiler system improves fuel heating efficiency, optimizes energy consumption, and facilitates easier monitoring and process control. Testing includes pressure tests, combustion efficiency, steam capacity, and material durability, with real-time monitoring to support performance analysis and early problem detection. Operational data evaluation allows for design adjustments or system settings to further enhance energy efficiency. With this innovation, the boiler system can operate more optimally, support energy efficiency, and facilitate predictive maintenance for sustainable industrial operations. The implementation of IoT in this system is expected to improve safety, effectiveness, and automation in boiler management, making it a more reliable and modern solution.

This study aims to analyze the effectiveness of Drops app in improving Japanese vocabulary acquisition among beginners. Based on the theory of cognitivism, the study used a descriptive qualitative method with a sample of 21 subjects who answered 11 questions through a Google Form survey. Results showed that the use of Drops significantly increased the average vocabulary score by 43 % (from 28.5 to 40.7), which was influenced by the integration of gamification features and spaced repetition mechanism in the application. The majority of respondents (76 %) reported high satisfaction with ease of use, learning motivation, and effectiveness of visual illustrations, consistent with previous research on audiovisual and gamification-based mobile apps. However, about 24 % of respondents recorded medium to low scores on motivational aspects and interface appearance, indicating the need for UX/UI enhancements to expand adoption. Demographic statistics revealed the average age of respondents to be 18.38 years (Q1=17; median=18; Q3=20), confirming that teenagers and pre-adults are the main group of Drops users. The findings provide recommendations for both language education practitioners and app developers to optimize design and features to maximize vocabulary learning effectiveness.

In aviation, two important factors can affect passenger satisfaction: time efficiency in service, especially in the baggage claim process, and airline image. These two activities also apply to passengers at Halim Perdanakusuma International Airport. This study aims to determine whether there is an influence between the duration of baggage claim and airline image on passenger satisfaction, both partially and simultaneously. This study uses a quantitative approach to data collection. It distributes questionnaires to 105 Citilink Indonesia passengers and 105 Batik Air passengers who claim their baggage in the arrivals area. In addition, it uses baggage manifest data in the form of first baggage (fi-bag) and last baggage (la-bag) time data. The data is then analyzed using the t-test (partial test) and f-test (simultaneous test). The results of the study indicate that partially, the Baggage Claim Duration variable has a significant effect on the Passenger Satisfaction variable, both for Citilink Airlines (sig.=0.30) and Batik Air (sig.0.035). The results of the study indicate that partially, the Airline Image variable has a significant effect on the Passenger Satisfaction variable for both Citilink Airlines (sig.=0.000) and Batik Air (sig.=0.000). Furthermore, the Baggage Claim Duration and Airline Image variables simultaneously affect the Passenger Satisfaction variable, with a significance of 0.000 for both Citilink and Batik Air Airlines.

This study aims to examine the effect of liquidity, profitability, and solvability ratios on investment decisions while also investigating the moderating role of firm size in this relationship. The research focuses on manufacturing companies listed on the Indonesia Stock Exchange for 2019-2023, which are marked by significant economic disruptions, including the COVID-19 pandemic. A quantitative approach was employed, using panel data regression to test the proposed hypotheses. Financial ratios were measured using the current ratio, return on assets, and debt-to-equity ratio, while investment decisions were assessed using the price-earnings ratio. The natural logarithm of total assets measured firm size. The results reveal that liquidity and solvability significantly influence investment decisions, while profitability does not. Firm size was found to moderate the relationship between liquidity and solvability with investment decisions, but not the relationship involving profitability. These findings have practical implications for investors and corporate managers in formulating investment strategies and managing financial performance, highlighting the importance of considering firm size when evaluating the effectiveness of economic indicators. This research also contributes to the empirical literature on investment decision-making in the manufacturing sector.