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The Industrial Internet of Things (IIoT) faces various challenges in ensuring secure communication, authentication, and data integrity due to its distributed nature and evolving threat landscape. To address these issues, this paper proposes the integration of blockchain authentication as a robust solution to enhance security and reliability in IIoT networks. By leveraging Federated Learning with blockchain technology, the proposed solution aims to improve authentication mechanisms by training models across multiple edge devices, increasing fault tolerance, and adaptability while reducing the risk of single points of failure. The use of blockchain technology ensures a tamper-proof and transparent ledger for securely storing authentication data and model updates, enhancing security and integrity in IIoT networks. The results and analysis demonstrate that the integration of Federated Learning and blockchain technology effectively addresses interoperability issues, performance optimization concerns, and security vulnerabilities within IIoT networks, offering a more efficient, secure, and scalable authentication alternative.

Micro, Small and Medium Enterprises (MSMEs) are business activities that are able to expand employment opportunities, provide broad economic services to the community, play a role in the process of equalizing and increasing community income, encourage economic growth, and play a role in realizing national stability. MSMEs are very important in implementing and maintaining productive and healthy performance. One of those who need an adaptation plan is MSME Goks which is located on Jl. Aru No. 13, Lubuk Begalung Nan XX, Padang City, West Sumatra, 25221. Goks is an ice cream business that offers attractive promotions and has a very affordable price factor. This community service activity begins with surveys and interviews, mapping and identifying problems, formulating solutions, and implementing mentoring activities. The impact of this activity is the expansion of product marketing and business development of Goks Padang MSME actors.    

The Industrial Internet of Things (IIoT) has revolutionized industrial processes, offering automation and data-driven decision-making. However, this interconnectedness brings new security challenges, especially in crucial infrastructure sectors. Traditional security measures are inadequate, leading to the exploration of innovative solutions. Blockchain technology has emerged as a promising solution due to its decentralized and immutable nature. This paper proposes a Hybrid Blockchain-Based Authentication Mechanism for IIoT, combining Delegated Proof of Stake (DPoS) and Elliptic Curve Cryptography (ECC). The hybrid architecture utilizes public and private blockchains to ensure scalability, efficiency, and security. Lightweight consensus algorithms, DPoS, are incorporated to optimize performance, while ECC provides efficient cryptographic techniques suitable for IIoT environments. An interoperable framework facilitates seamless integration with existing infrastructure, ensuring regulatory compliance and compatibility. Decentralized identity management further enhances security and privacy. Results and analysis demonstrate the effectiveness of the proposed solution, positioning hybrid blockchain architecture as the most suitable approach for enhancing security in IIoT environments.

This research examines the influence of transactional and transformational leadership on honesty, effective leadership, integrity. Transactional leadership focuses on rewards and punishments to achieve goals, whereas transformational leadership inspires and motivates followers to go beyond personal interests. Through surveys and statistical analysis, the results show that transformational leadership more significantly increases performance, job satisfaction, and organizational commitment than transactional leadership. However, transactional leadership remains relevant in situations that require structure and tight control. A combination of these two styles is recommended for optimal results in various organizational contexts.

The purpose of this literature review is to examine the factors that influence dividend policy. This study reviews existing literature on dividend policy and identifies several factors that affect a company's decision to pay dividends. These factors include profitability, liquidity, free cash flow, firm size, leverage, company life cycle, and asset turnover. This study finds that these factors interact with each other and affect a company's ability to pay dividends. The findings of this study provide insights for companies to develop effective dividend policies that balance investor interests and financial performance. This study also highlights the limitations of existing research and suggests avenues for future research.

In a company increasing productivity is very important. This increase can be done by improving technological innovation. The technology that was redesigned was the roaster machine. The aim of this research is to make machine use and maintenance easier with new designs that may be more user-friendly and more sophisticated control technology or more durable materials that can improve machine performance and longevity. The method used in this research is the Zero One method. The Zero-One method is a decision development method that aims to determine alternatives (criteria). The results of the analysis from this research are to create a machine that can be made in accordance with ergonomic standards for workers, thereby reducing downtime and reducing production cycle times, thereby allowing for increased output without increasing working hours.  

The main purpose of this community empowerment activity is to provide guidance on optimising the role of village women in digital marketing innovation literacy to maintain business sustainability in Kelungkung Village. The methods used in this community service activity are tutorial methods, mentoring methods, discussion methods and evaluation. The results achieved from this activity are: (1) The enthusiasm of the PKK of Kelungkung Village for digital marketing innovation literacy activities with various conditions of limited time and age, (2) Can understand and practice how to create a market place account to do online marketing, (3) Can understand material about online marketing strategies, (4) Able to plan a digital marketing business, (5) Able to compile small business performance evaluation management.

Accurate rainfall prediction is needed to improve the performance of land that always uses rainfall data. Data mining or often called knowledge discovery in databases (KDD) is an activity that includes collecting, using historical data to find regularities, patterns or relationships in large data. In predicting rainfall, there are several conditions that can be observed as reference data to predict rainfall, namely wind speed, temperature, and air humidity. In this research, a backpropagation artificial neural network prediction method is developed that can be used in predicting future rainfall. The backpropogation artificial neural network method that was built produced an accuracy value of 95.36%, a precision value of 90.50%, a recall value of 97.50% and an f-measure value of 92.00%

PT Salmanda Jaya Utama is a franchise of Shell Indonesia which is engaged in the business of fuel oil (BBM), lubricants for industry, automotive, transportation, mini market (select). Research shows that improving abilities and skills through training will increase employee effectiveness and efficiency. And a well-structured organization can achieve optimal work results. The purpose of this study was to determine the training and organizational culture affect employee performance. The method of collecting data in preparing the thesis is the observation method, interviews, primary data with the analysis method in the form of quantitative, namely the multiple linear regression analysis method with a saturated sample technique totaling 40 employees. The results of this study state that training partially has a positive and significant effect on employee performance with a significance level of 0.008 <0.05 and a T value> T table of 2.789> 2.022. Organizational culture partially has a positive and significant effect on employee performance with a significant level of 0.000 <0.05 and the value of T count> T table of 5.528> 2.022. Training and organizational culture simultaneously have a positive and significant effect on employee performance with a value of F count> F table of 59.391> 3.24

This research aims to determine the effect of education and job training on the performance of PT employees. Buhler Indonesia Tangerang – Banten. The approach used in this research is quantitative. The population in this study were all employees of PT. Buhler Indonesia, numbering 50 people. Sampling if the subjects to be studied are less than 50 people, it is best to take all of them. in this research is a multiple linear regression analysis technique with SPSS 26 software, the theme of this researcher is the influence of education and job training on the performance of PT employees. Buhler Indonesia. The second level of probability, namely job training, has a significant effect on the performance of PT employees. Buhler Indonesia  

This research aimed to investigate the students’ perceptions of the flipped classroom approach in learning English at SMPN 2 X Koto Tanah Datar. The flipped classroom model, which reversed traditional in-class activities and homework, introduced new content at home through videos or readings, and dedicated class time to interactive, hands-on activities. This method sought to enhance student engagement, promote active learning, and provide opportunities for personalized instruction and immediate feedback. The study employed a descriptive quantitative method, focusing on second-grade students. Data were collected using a questionnaire that was distributed to 64 students, who were selected through purposive sampling. The questionnaire aimed to gauge students' perceptions of various aspects of the flipped classroom, including self-directed learning, collaboration, responsibility, learning performance, flexibility, and student satisfaction. The population for this study consisted of all second-grade students at SMPN 2 X Koto for the academic year 2021/2022, totaling 95 students across three classes. The sample was selected using purposive sampling, focusing on classes VIII.1 and VIII.2, to ensure participants had the specific attributes necessary for the research. Based on the findings and analysis, it can be concluded that students at SMPN 2 X Koto Tanah Datar have a highly favorable perception of the Flipped Classroom approach in learning English. The study, which involved 95 second-grade students, revealed positive responses across various aspects such as autonomy in learning, collaboration, responsibility, learning performance, flexibility, individualized experiences, interactions, and overall satisfaction. With an average score of 81.41%, categorized as "Very Good" by Arikunto's criteria, the Flipped Classroom methodology is well-received and deemed beneficial for English education at SMPN 2 X Koto Tanah Datar.

Babycos.id a home-based business in the distribution of baby and children's supplies, was founded in 2018 in South Tangerang with a focus on sales through online platforms such as Shopee, Lazada, and Tiktok Shop. In facing increasingly fierce business competition, employee management becomes a crucial aspect, especially in the transparent and objective determination of bonuses. The determination of bonuses is considered a form of reward that can boost employee motivation. This outlines the rapid development of Babycos.id's e-commerce in 2022. To motivate employees, the owner of Babycos.id aims to provide significant rewards. Despite the increase in revenue, the management of employee bonus data is still conducted manually through WhatsApp groups, resulting in errors and lengthy calculation times. To address these issues, the author has designed a web-based employee bonus information system, applying the Personal Extreme Programming method. The use of a website-based method with PHP programming language and MySQL database is expected to provide an effective and efficient solution for employee bonus management at Babycos.id. The anticipated outcome is a system capable of addressing existing issues and making a positive contribution to enhancing employee motivation and performance.  

Communication is needed in various areas of human life, including in the economic sector, namely business. Communication is important in an organizational group. Employee performance can also be interpreted as the results achieved by an employee in carrying out his duties and responsibilities in working in the company. This research is to find out how the influence of leadership communication on the performance of employees of PT. Duta Karya Bersatu. The type of research in this study is quantitative research. The scale used by the researcher is the Likert scale. The sample in this study is all employees of PT. Duta Karya Bersatu totaling 34 people. Simultaneous leadership communication has an influence of 13.6%, with a significance value (0.032< 0.05) while 86.4% of employee performance is influenced by other variables that are not studied. It is important for companies to continue to develop strong communication to improve employee performance, in order to advance and strengthen the company's foundation.  

VSAT Sailor is a communication aid in KRI that is able to support communication by working directly with satellites, so that KRI can still communicate with other ships and contact bases on land even though it is in the middle of the sea, but in its use, there are still several obstacles that make the VSAT performance itself not optimal so that communication in KRI becomes disrupted and not real time. In this research, the author tries to find out the source of the problems from the obstacles that are often encountered by VSAT users, one of which is KRI, and tries to provide suggestions so that in the future VSAT at KRI can be used optimally and minimize the obstacles that occur. In this study the authors took the problem formulation "How to optimize the use of VSAT Sailor at KRI?". This research uses descriptive qualitative methods. From the research data, the relevance of the literature review, and various theories used as a reference. The data taken for this study came from several KRIs that use VSAT Sailor in the ranks of Koarmada II. With data taken from several KRIs and processed using management theory, it shows that there are still several obstacles in the use of VSAT Sailor that make its performance not optimal. To optimize the performance of the VSAT Sailor at KRI, steps are needed in the form of routine maintenance and maintenance.    

The public demand for better vehicle performance is increasing. Increasing the compression ratio and fuel octane is one solution to improve vehicle performance. This study aims to determine the effect of increasing the compression ratio and ethanol mixture in fuel on the power and torque of the 125 cc Otto engine. The method used is an experiment using a dynotest. The compression ratio was varied to 8.9, 9.2, and 9.6, with ethanol mixtures of 5%, 10%, and 15%. The test data were analyzed using the two-way ANOVA method. The results showed that increasing the compression ratio and ethanol mixture can increase engine power and torque. The highest peak power and torque occurred at a compression ratio of 9.6 with 15% ethanol, which was 6.11 kW and 10.23 N.m. A compression ratio of 9.2 produces 6.07 kW of power and 10.07 N.m of torque at 15% ethanol. A compression ratio of 8.9 produces 5.62 kW of power at 15% ethanol and 9.73 N.m of torque at 10% ethanol.    

Management is important in all areas of life. With management, an organization's performance can run optimally. Likewise with educational institutions. With good management, an educational institution will be able to develop optimally as expected. In the world of education, the quality of school management will depend on a school principal who plays the role of manager and as a manager, the school principal has a big responsibility in managing, coordinating, mobilizing and harmonizing all educational resources in his school. This is where the essence is that the principal must be able to carry out the role of principal and have abilities in the field of school management. The principal is the administrator who holds the key to improving the progress of the school.      

Airplane Accident Assistance and Fire Fighting (PKP-PK) is a unit at the airport that is responsible for handling aviation emergencies and fires. This research discusses the influence of work discipline and work safety on the work effectiveness of PKP-PK unit employees at airports. Work discipline itself means attitudes and behavior that show compliance and adherence to the rules, norms, procedures and work ethic established in the workplace. Meanwhile Occupational safety itself is a series of actions, policies and procedures implemented to protect the health and safety of employees in the workplace. The aim of this research is to analyze the influence of employee work discipline and work safety on the effectiveness of the PKP-PK work unit. This research also aims to determine the effectiveness of the work of firefighters regarding obstacles and the efforts made to overcome these obstacles.The method used in this research is library research, which involves collecting and analyzing data from various relevant literature sources. This research focuses on previous studies regarding work discipline and work safety on work effectiveness in the PKP-PK unit. The research results show that good work discipline and safety have a positive effect on the work effectiveness of the PKP-PK firefighting unit employees. Discipline that is embedded in the souls of every employee increases work effectiveness and enthusiasm for work, so that responses to emergency situations can be carried out quickly and effectively. Therefore, there is a need for better personnel training and more detailed safety equipment readiness to improve operational performance.

Passport services at the Class 1 Non TPI Immigration Office in Pemalang, Central Java are oriented towards public satisfaction by not abandoning the principles of excellent service, which include: simplicity, clarity, certainty of time, accuracy, security, responsibility, completeness of facilities and infrastructure, convenience access, discipline, politeness and friendliness, as well as comfort. As well as having standards, namely: legal basis, requirements, systems, mechanisms, procedures, settlement period, costs/tariffs, service products, facilities and infrastructure, implementing competence, internal supervision, complaint handling , suggestions, input, number of implementers, service guarantees that provide certainty of time, security and safety guarantees, as well as evaluation of implementer performance.The purpose of this research is to evaluate the level of service provided by the Class 1 Non TPI Immigration Office, Pemalang, Central Java in making passports. This research uses observation, documentation and interviews as data collection methods, with a qualitative descriptive approach.The results show that the Central Java Non-TPI Class 1 Immigration Office in Pemalang usually offers competent passport issuance services. This conclusion is based on an assessment of service quality elements such as dependability, responsiveness, assurance, empathy, and concrete evidence. However, the report also identified a number of challenges, such as staff shortages and a lack of facilities and equipment.The Class 1 Non TPI Immigration Office in Pemalang, Central Java must take a number of steps to improve the quality of its services. These include increasing the number of employees, training to improve human resource capabilities, improving and completing facilities and infrastructure, as well as increasing community collaboration and communication. The office's goal in implementing these changes is to provide services that are faster, easier, and more acceptable to the community.

This study aims to describe and analyze the Changes in the Function of Ngadu Tanduk Dance as a Traditional Dance of the Siulak Panjang Village Community. The type of research used is qualitative with a descriptive method. The instrument of this study is the researcher himself, with supporting instruments such as stationery and mobile phones. The data collection techniques used are literature studies, observations, interviews, and documentation. The data analysis techniques used include data collection, data reduction, data presentation, and data verification/conclusion drawn. The results of the study show that the Ngadu Tanduk Dance is a dance that originated from Siulak Panjang Village, Siulak District, Kerinci Jambi Regency. The change in the function of the Ngadu Tanduk Dance reflects the social and cultural dynamics of the local community that continues to develop. This dance initially only had a traditional function but now it also has an entertainment and performance function. Changes in function in the Ngadu Tanduk Dance are influenced by internal and external factors that interact in the context of the community. The internal factors that affect are changes in people's mindsets and the need for entertainment and cultural identity. While external factors are changes in the agricultural cycle and the influence of globalization and modernization.

The main objectives are to identify emotion patterns hidden in K-Pop music based on audio features extracted from the Spotify API and to build an emotion classification model that can predict the emotions of K-Pop songs.In this approach, the K-Means algorithm is used to cluster K-Pop songs based on audio features such as energy, valence, tempo, danceability, and speechiness. The clustering results reveal several main groups that represent variations in musical characteristics and emotions. Next, the C4.5 algorithm was used to build an emotion classification model based on the clustering results. The C4.5 model showed high performance with accuracy reaching 99.48% on a 90:10 dataset split, 99.21% on an 80:20 split, and 98.95% on a 70:30 split.The Streamlit application was developed to visualize emotion predictions from K-Pop songs with a web-based user interface. In addition, Ngrok was used to provide remote access to this application, allowing users to test and use the application remotely.The results of this study show that the combination of K-Means and C4.5 can effectively cluster and classify emotions in K-Pop music, providing valuable insights into the musical characteristics that influence emotions. This application has the potential to be used in further analysis, development of intelligent features in music applications, and improvement of user experience in listening to K-Pop music.