Monitoring and Analyzing Air Quality in Several Locations around Medan City Using IoT-Based Integrated Sensors

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This research is motivated by the importance of monitoring air quality in industrial and non-industrial areas, especially in the city of Medan, Indonesia. Increasing growth of the industrial sector and use of transportation can increase air pollution. Air pollution caused by emissions of harmful gases such as NO2 and CO, as well as microscopic particles such as PM2.5 has a significant impact on human health, especially causing respiratory and heart disease and premature death. The rapid development of Internet of Things (IoT) technology can detect air quality and transmit sensor readings wirelessly via the internet to an Android or PC. This research aims to design an air quality monitoring tool related to the presence of dangerous gases NO2, CO and levels of microscopic particles PM2.5 with an integrated mics-6814 sensor and PMS5003 sensor based on IoT accurately and in real-time and analyze the results of air quality monitoring in research area. The research methodology involves measuring air quality parameters such as PM2.5, CO, NO2, temperature, and humidity using IoT-based integrated design tools. The research location consists of 3 points, namely around the industrial and residential areas of the Kawasan Industri Medan (KIM) Mabar, the Industrial Area in Tanjung Morawa, and the University of North Sumatra. Numerical data will be tabulated from the results of research carried out for 7 hours in 3 days based on the specified time. The results of this research show that the air quality monitoring system designed can measure temperature, humidity, PM2.5, NO2 and CO levels in real time and accurately. Air quality data collected at several research locations shows different trends. Overall, the air quality in the research area is in the healthy category, having no impact on the health of humans, animals and plants which is linked to Peraturan Menteri Lingkungan Hidup Dan Kehutanan Republik Indonesia. Suggestions for further research include selecting components that are more sensitive in detecting air quality and paying attention to environmental conditions which can reduce deviation values ​​from the sensor.

The Role of Social Media in Improving the Effectiveness of Accounting Information Systems and the Organizational Performance of Banking Companies in North Sumatra Province

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The main objective of the study is to measure the influence of social media (innovation and knowledge sharing) on the effectiveness of accounting information system, and the effectiveness of accounting information system on organizational performance on banking companies in North Sumatra. Simple random sampling method used and 178 respondents included in this study. SPSS and SmartPLS are used for data analysis for descriptive statistical analysis tests and SEM-PLS analysis. All 3 hypotheses were accepted. Then, the result of this study provide empirical evidence to support the resource based view theory on the variables innovation, knowledge sharing, effectiveness of accounting information system, and organizational performance. All measurement items in the questionnaires have been valid and reliable. The strongest influence is found in the innovation variable. Meanwhile, the weakest influence is found in the knowledge sharing variable. The findings of this study can contribute to the banking and goverment. This study provides empiricial data that can be used as consideration and reference in making future police and strategies. Especially related to innovation, knowledge sahring, effectiveness of accounting information system in improving organizational performance that is increasingly effective in the future.

Development of Problem-Based-Learning (PBL)-Oriented Electronic Student Worksheets (e-Worksheet) to Improve Critical Thinking Skills of Class XI Senior High School Students on Factors that Influence Rate of Chemical Reactions Material

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Education system changes from time to time, and with these changes, the existing curriculum in Indonesia also continues to undergo several curriculum updates. The Merdeka Curriculum is the answer to the high level of competition that occurs in the 21st century. Factors that influence the rate of chemical reactions are one of the materials in chemistry phase F of the Merdeka curriculum, which has abstract characteristics and requires experimentation. Based on these characteristics, the problem-based-learning (PBL) learning model is suitable for use and can improve students’ critical thinking skills. This research aims to determine the feasibility of developing a PBL-oriented student e-worksheet to improve critical thinking skills on factors that influence reaction rates. The method used in this research is R&D with a 4D model. The results obtained are that the student e-worksheet developed is feasible because the content and construct validity results obtained in mode 5 with a very valid category, then the practicality results obtained a response questionnaire score of 98.44%, which was supported by the results of the student activity sheets, and the effectiveness was obtained. From the data from the pretest and posttest results, which were analyzed using the SPSS Paired Sample t-Test, the results showed that there was an increase in students’ critical thinking skills, namely with a significance value of 0.00.

Development of Problem-Solving-Oriented Electronic Module (E-Module) to Improve The Critical Thinking Skills of Class XI Senior High School Students on Acid-Base Material

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The Independent Curriculum is a solution to the tight competition for human resources in the 21st century. The critical thinking skills needed in the 21st century can be improved through studying chemistry, especially acid-base materials. The problem-solving learning model is an appropriate learning model for understanding acid-base materials and can improve students’ critical thinking skills. Learning media that can be used in chemistry learning are electronic modules. The aim of this research is to develop a problem-solving-oriented e-module to improve critical thinking skills in acid-base materials. The development model in this research uses the 4D model by Thiagarajan. The development of problem-solving-oriented e-modules was declared suitable for improving students’ critical thinking skills in acid-base material in terms of validity, practicality, and effectiveness. Validity is seen in content and construct validity, both of which received a mode value of 5 in the very valid category. Practicality can be seen from the results of the student response questionnaire, which obtained a percentage of  98.75℅ in the very practical category and is supported by the results of observations of student activities. Effectiveness can be seen from the results of the students’ critical thinking skills pretest and posttest, which obtained a significance value of 0.00 using the paired sample t-test.

A Proposed Measurement Model for Enhancing Strategic Business Transformation Performance

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This research was conducted at PT XYZ, an Indonesian digital telecommunications leader, to address declining profits and increasing competition which threaten its mission to provide reliable and innovative business services. The study aimed to develop a strategic measurement model to enhance business transformation performance. A mixed-methods approach was utilized, collecting qualitative data through in-depth interviews with 7 key individuals and focus group discussions with 6 participants, along with quantitative data from surveys involving 100 internal employees and 100 external stakeholders. This comprehensive approach helped identify several key factors affecting transformation success. Key findings included the necessity of a progressdriven approach with regular strategic alignment checkpoints, a significant gap in organizational capabilities due to insufficient training, lack of stakeholder engagement resulting in minimal buy-in, and the absence of clear Key Performance Indicators (KPIs) complicating progress tracking and decision-making. To overcome these challenges, the study proposes optimizing resource allocation via a robust management system, investing in ongoing training programs to enhance organizational capabilities, improving stakeholder engagement through continuous communication, and establishing definitive performance metrics and regular evaluation mechanisms. Implementing these strategies could significantly boost PT XYZ’s financial profits, customer satisfaction, and competitive standing in the telecommunications sector.

Challenges and Strategies in the Return of Land Bailout Funds for Toll Road Construction: A Detailed Analysis of PT Hutama Karya’s Approach

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This study explores the factors that cause the delay in the process of returning the Land Bailout Fund (LBF) and examines potential problems related to the inability of the Government of Indonesia to return LBF to PT Hutama Karya (HK) in the context of the Trans Sumatra Toll Road project. Using a qualitative case study methodology in the framework of empirical law, this study integrates Gustav Radbruch’s theory of legal objectives to analyze the current legal regulations. Primary data were collected through interviews with key informants and secondary data on the realization of LBF at PT HK. The findings show that the main cause of the delay is the length of time it takes for the Commitment Making Officer (CMO) to prepare the LBF return submission documents, coupled with the slow verification process at the State Asset Management Agency (SAMI). In addition, problems related to the Land Bailout Fund that cannot be returned arise when the land acquisition is outside the specified area or when the business use right permit is not extended. The current laws and regulations, including the regulations of the Minister of Public Works and Public Housing and the Minister of Finance, are unable to overcome this gap, resulting in the failure to achieve legal goals in terms of justice and legal certainty. This study shows that this legal ambiguity inhibits the effectiveness of the LBF mechanism and recommends legislative changes to address this gap. By refining the legal provisions, the study supports increased fairness and certainty, ultimately benefiting the government and entities such as PT HK.

Moderating Role of Earnings Management on Leverage and Related Party Transactions Influence on the Effective Corporate Tax Rate (ETR) in Indonesian Stock Exchange Listed Industrial Companies for Periods of 2018 – 2022

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This research aims to determine how earnings management moderates the influence of leverage and related party transactions on the Effective Corporate Rate (ETR) in Indonesia Stock Exchange listed industrial sector companies for periods of 2018-2022. This research is conducted based on information obtained on the Indonesian Stock Exchange. The sampling technique for this research is purposive sampling method. The population in this study was 63 industrial sector companies listed on the IDX in 2018-2022 and the samples used are 45 companies. The type of data used is secondary data and the data analysis technique is panel data regression and the Moderate Regression Analysis (MRA) test with analysis tools using Eviews software. The results of this research show that leverage has a negative and significant effect on ETR and related party transactions have no effect on ETR in industrial sector companies listed on the IDX for the 2018-2022 period. Earnings management cannot moderate the influence of Leverage on ETR in Industrial sector companies listed on the BEI for the 2018-2022 period and earnings management cannot moderate the influence of related party transactions on ETR in industrial companies listed on the BEI for the 2018-2022 period.

Conversions API and Other Signal Resilient Ad Products in a Cookieless World

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As the digital marketing landscape evolves towards a cookieless future, advertisers must pivot to new technologies for user tracking and ad personalization. This white paper delves into Conversions API and other signal resilient advertising products that promise to maintain and enhance ad targeting capabilities without infringing on user privacy. We explore the technical underpinnings, industry applications, and best practices for integrating these tools, presenting a comprehensive guide for businesses looking to thrive in a post-cookie world. Through expert insights and actionable strategies, this paper offers a blueprint for advertisers to navigate this paradigm shift and leverage emerging technologies to gain a competitive edge.

Characteristics of Beef Cattle Breeders in Merak Hamlet who Utilize Natural Resources in the Baluran National Park

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Study this aim for analyzes characteristics breeder to utilization resource nature in the area park national smear. A study was carried out in Merak Hamlet from March to August 2023 against beef cattle breeders. The research methods used​ are descriptive qualitative through survey field and interviews with breeder cow cut Merak Hamlet. Characteristic results show that beef cattle breeders cut hamlet peacocks aged (>39 years) and included category age productive with low background education, namely (school base). Experience raising cow broilers for quite a long time, namely >20 years. The main livelihood is the worker’s family (raising livestock). Ownership of land from land is narrow, non-rice field farming. In conclusion, characteristics of beef cattle breeder, cow broiler, hamlet peacock, including category breeder productive ones who do not need other people’s labor, the consequences often activity illegal grazing and utilization has nature in the Baluran National Park area.

Transformation of Jember Regency, East Java, Indonesia to Become as a MICE Industry in Collaboration with Among Natural and Cultural Advantages

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One of the sectors in tourism that is currently the main focus is Meeting, Incentive, Conference, Exhibition (MICE). MICE relates to the organization of business meetings, incentive programs organized by companies, large-scale meetings involving participants from various places, exhibitions, and many more. MICE contributes greatly to the economic growth of a region by bringing in revenue streams from event participants, as well as driving consumption in the local tourism sector, such as accommodation, restaurants and transportation. Jember Regency, located in East Java Province, has the potential to develop a promising MICE sector. Jember has a number of advantages to attract attention as a MICE destination and is one of the largest regencies in East Java with a variety of natural, cultural and creative economy tourism potential. Jember’s natural beauty, from beautiful beaches such as Papuma Beach to verdant mountains such as Mount Argopuro, provides an enchanting backdrop for many MICE events. Cultural treasures, such as the internationally renowned Labako Dance and Jember Fashion Carnaval, add to the appeal.