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This study aims to analyze the aircraft maintenance procedures following a bird strike incident on Engine #1, focusing on incident identification, maintenance actions taken, damage evaluation, follow-up recommendations, and compliance with aviation industry standards. Data for the study were obtained through official technical documentation such as the Technical Standard Manual (TSM) and Aircraft Maintenance Manual (AMM). Data analysis was conducted using the Miles & Huberman method, which includes stages of data collection, data reduction, data presentation, and conclusion drawing. Data validity was ensured through source triangulation, relying on various related documents to strengthen the findings. The results showed that the maintenance procedures applied were in accordance with international standards. Post-incident maintenance was carried out systematically and well-documented, with no procedural violations or technical neglect. The damage evaluation of Engine #1 revealed that the corrective actions implemented were effective, ensuring the aircraft's safe return to service. Recommendations for further maintenance include enhancing supervision of existing procedures. Overall, the post-incident maintenance met best practices in the civil aviation industry, ensuring aircraft safety and reliability.

This research aims to determine the direct and indirect influence of leadership style and work environment on employee performance through work motivation as an intervening variable. This type of research uses quantitative because it leads to measurement methods and samples to test variables and hypotheses. The data sources in this research use primary and secondary data. The sample in the research was 31 CV employees. Timbul Jaya Motor Kediri uses a saturated sampling technique which uses all members of the population as samples. The analysis technique used is the measurement model test or outer model including the discriminant validity test, average and the structural model test or inner model which includes the R-square, Q-square test and hypothesis test.. The results of the research show that Leadership Style (X1), and Work Environment (X2), Work Motivation (Z) have a significant and positive effect directly on Employee Performance (Y) and Leadership Style (X1), and Work Environment (X2) indirectly has a significant and positive effect on Employee Performance (Y) through Work Motivation (Z) as an intervening variable. This research also shows that the coefficient of determination (R2) of employee performance variables has an influence of 88.9% in influencing leadership style and work environment variables while the remaining 11.1% is influenced by other variables not discussed in this research so that further research uses other variables outside this research. In this study, it is implemented that a company's performance factors are influenced and can be improved through leadership style and work environment variables through work motivation.    

This study aims to examine consumers' perceptions of price influence their decision to purchase local coffee brand Kopi Tuku. Price perception is regarded as a key element influencing purchasing decisions, as consumers tend to judge price based on its quality, benefits, and nominal value. This study conducted quantitative research by surveying 395 Kopi Tuku consumers. Validity, reliability, classical assumptions, simple linear regression analysis, and t and F tests were used. The findings indicated that price perception significantly influences purchase decisions, as demonstrated by a computed value of 22.006 that is higher than the t-table and a significance value of 0.000. In addition,the value of 0.552 for the coefficient of determination (R²) indicates that price perception is responsible for 55.2% of the variation in purchasing decisions. The results suggest that in order to increase customer purchasing choices, Kopi Tuku should maintain a pricing strategy that is reasonable, competitive, and aligned with the worth of the available goods.

This study aims to analyze the influence of brand equity, brand loyalty, work productivity, and organizational commitment on consumer satisfaction at the Medan Palm Oil Research Center. The research method used is a survey with data collection through questionnaires distributed to consumers who interact with the Medan Palm Oil Research Center. The results of this study are compiled based on data analysis conducted to test the influence of brand equity, brand loyalty, work productivity, and organizational commitment on consumer satisfaction at the Medan Palm Oil Research Center. This study involved 177 respondents who were consumers of products from the Medan Palm Oil Research Center. The results of the validity test shown in the table above obtained the results of the correlation coefficient with the highest validity of 0.9123 and the lowest correlation coefficient of 0.0520. The results of the validity test show that the correlation coefficient between the score of each instrument item and the total score of all statement items is greater than 0.3. This means that it can be concluded that all indicators in this study are declared valid. The results of the reliability test shown in Table 3 can be concluded that all of the instruments are reliable because the Cronbach's Alpha of each instrument is greater than 0.60 so that it can be used to conduct research.

Nowadays, the development of the world of technology and information has a great influence on our daily lives. This is marked by the increasing number of new products circulating in the market. To be able to win market share of sales, a strategy is needed. One of the strategies carried out by the company is with a marketing mix pattern consisting of products, prices, venues and distribution. The most used product is Nokia Mobile Phones. To determine the analysis of the influence of the free bound variable, multiple regression analysis was used through a computer with the SPSS Release program with a validity and realiginess test The coefficient of determination (R square) was 0.793. But the number of variables is more than two, then an adjudted square of 0.726 is used, meaning that the change Y (buying decision) is determined by a free variable of 72.6%. The correlation coefficient of the overall independent variable (multiple R) is 0.891 or 8.9%, meaning that the relationship between the purchase decision and the independent variable is strong. Based on the analysis, it can be concluded that the influence of the marketing mix on consumer decisions in buying Nokia Mobile phones in South Ende District, Ende Regency can be said to be very influential Thus the expected target for the public to decide to buy products with trusted brands so that consumer satisfaction can be trusted.

This study aims to identify the relationship between Social Media Addiction and Sleep Quality of Jambi University Psychology Students. This study uses quantitative research with a correlational test approach. The sampling technique was random sampling with the study population consisting of 88 Jambi University Psychology students class of 2024. Data collection was carried out through questionnaires distributed to 88 students of the Jambi University Psychology Department. Data analysis includes two approaches: (1) descriptive analysis, 2) normality testing, 3) validity and reliability testing, and 4) hypothesis testing using Spearman's rho correlation. Based on the results of the analysis in this study, it shows that there is no relationship between Social Media Addiction and Sleep Quality of Psychology Students of Jambi University (UNJA). This is evidenced by the p value having a value of 0.402. The p value has a value greater than 0.05 so that the Working Hypothesis (H1) is rejected and the Null Hypothesis (H0) is accepted.

In everyday life, the practice of making agreements is often done simply without written form, especially in social interactions and informal economic activities. This raises legal questions about whether agreements made orally have valid legal force. This study aims to understand the legal position of oral agreements from the perspective of Indonesian civil law, especially regarding the requirements for the validity of an agreement based on the provisions of Article 1320 of the Civil Code (KUHPerdata). This study uses a normative juridical method, with an approach to laws and legal doctrine. The results of the study show that even though they are not made in writing, oral agreements are still valid as long as they meet the applicable legal requirements. However, the problem that often arises lies in the difficulty of proof when peace occurs. Therefore, it is important for parties to consider written records as a form of legal protection.  

This research aims to develop online mathematics learning tools based on the local wisdom of Papua in the form of Lesson Plan and E-Worksheet products that are oriented to students' critical thinking skills and mathematical problem-solving in materials of polyhedra which (1) validity aspects, (2) practicality aspects, (3) effectiveness aspects. The cultures used in this research are the kariwari traditional house and the kaki seribu traditional house as illustrations to explain the concept of polyhedra. The research method is research and development (R&D) using the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development design model. The subjects in this study are 8 students who are in grade VIII at Golden Gate Junior High School, Sorong City. The instruments used in this study are validation sheets, learning implementation observation sheets, teacher response questionnaires, student response questionnaires, and tests. The learning tool is valid if the results of the experts' assessment are at least in the "good" category. Learning tools are said to be practical if the results of teacher’s responses, student responses, and observations of learning implementation are at least in the "good" category. The learning tool is effective if the percentage of students who complete the critical thinking skills test and the math problem-solving ability test is at least 60%. This research produced online learning tools in Lesson Plan and E-Worksheet mathematics form based on local Papuan wisdom oriented to critical thinking skills and problem-solving skills of grade VIII junior high school students on flat-side space building materials. The validation results show that the product developed meets the valid criteria with a good category. The results of the test show that the product developed meets the practicality and effectiveness criteria. Practicality achieved the category “very good” based on teacher assessment, student responses, and the observation of learning implementation. Effectiveness achieves the effective category based on the test of critical thinking skills and mathematical problem-solving. The percentage of students who completed the critical-thinking skills test reached 87.50%, and the mathematical problem-solving ability test reached 75.00%.

Marriage is an important aspect of social and religious life, regulated by religious and state laws. This study aims to analyze the legal consequences of marriages that take place without the presence of a marriage guardian, especially in the context of a prospective bride whose status is a convert. From the perspective of Law No. 1 of 1974 concerning Marriage and the Compilation of Islamic Law, the presence of a marriage guardian is an absolute requirement for the validity of a marriage. This research uses a normative juridical method by utilizing literature studies as legal material to examine more deeply the hierarchy of marriage guardians and the implications arising from marriage without a marriage guardian. The results of this research show that a marriage that is not attended by a legal guardian can result in the invalidity of the marriage, which will have an impact on the legal status of children and women's rights. The case of Rizky Febian and Mahalini's marriage is a concrete example that shows the importance of the presence of a marriage guardian in maintaining the validity of marriage. This research is expected to provide a good understanding of the importance of marriage guardians and the legal procedures that must be followed in marriage, especially for prospective brides who convert to Islam.

This study aims to test and determine how important the influence of Independence and Work Experience is on audit quality at Public Accounting Firms (KAP) in East Jakarta. The research method used is quantitative because it has conducted tests using SPSS such as respondent identity, gender, age, last level of education, length of service and also conducted classical assumption tests, namely data validity, data reliability, data linearity, multicollinearity, heteroscedasticity, autocorrelation test, simple linear regression, multiple linear regression, coefficient test, correlation coefficient test and also partial and simultaneous hypothesis tests. This study proves that the influence of independence and work experience as variables that are very influential, an auditor must have these two integrities with a responsible basis in order to provide good and quality audit results.

In educational research, identifying variables and determining data sources are essential components in designing a systematic and accurate study. Research variables refer to the elements that are observed and measured within a study. These variables can include student achievement, motivation, teaching strategies, or learning environment conditions. Generally, variables are categorized as independent, dependent, control, or moderator variables. The independent variable is the influencing factor, while the dependent variable is the outcome. Control variables are held constant to avoid interference, and moderator variables affect the strength or direction of the relationship. The process of identifying variables begins with formulating the research problem and objectives. By reviewing theoretical frameworks and previous studies, researchers can focus their investigation on measurable aspects. For instance, in a study about the effectiveness of online learning on student performance, the independent variable is online learning, while the dependent variable is student achievement. Beyond identifying variables, researchers must also determine the appropriate types of data sources. Data sources are generally divided into two categories: primary and secondary. Primary data are collected directly from research subjects, such as through interviews, observations, or questionnaires. Secondary data, on the other hand, are obtained from existing sources like documents, books, journals, or official reports. The choice of data source must align with the research approach—quantitative, qualitative, or mixed methods. In quantitative research, primary data such as test scores or survey responses are used to measure variables numerically. In qualitative research, in-depth interviews and observations are commonly used to explore meanings and context. Using both types of data in combination can enhance data validity through triangulation. Ultimately, researchers must ensure the validity and reliability of their data, while also maintaining ethical standards in data collection and reporting. By understanding how to identify variables and select appropriate data sources, educational research can yield credible findings that contribute meaningfully to educational theory and practice.

This study aims to determine the effect of financial literacy, financial behavior and overconfidence on investment decisions in generation Z of the Faculty of Economics, Islamic University of Kadiri. This type of research is quantitative research. The data for this study were obtained through questionnaires and literature studies. The analysis techniques used were Validity Test, Reliability Test, Classical Assumption Test, Multiple Linear Regression Analysis, t-test, F-test and Determination Coefficient Test. The results of the t-test of the financial literacy, financial behavior, overconfidence variables on investment decisions with sig <0.05. The results of the F test can be concluded that financial literacy, financial behavior, overconfidence on investment decisions have a simultaneous and significant effect with sig. <0.05.

The revitalization of urban heritage areas in Indonesia, exemplified by Panggung Street in Surabaya, faces multifaceted challenges encompassing the preservation of historical character, socio-economic enhancement, and the creation of inclusive public spaces. Current revitalization efforts often misalign with the area’s authentic features such as inappropriate facade treatments while neglecting accessibility for vulnerable groups and failing to foster effective collaboration among stakeholders. This study employs a descriptive qualitative case study approach, synthesizing field observations, in-depth interviews with local actors, comprehensive literature reviews, and precedent analyses of Braga Street in Bandung and heritage zones in Malacca. Data were analyzed using SWOT and root cause analysis to identify systemic barriers and leverage opportunities, while comparative-historical interpretation contextualized Surabaya’s urban identity. Triangulation ensured methodological rigor and validity. The research culminates in a holistic revitalization framework emphasizing three key strategies: restoration of authentic architectural features, including original colors and ornamentation, enhancement of inclusive infrastructure, such as accessible pedestrian pathways and universal signage and active community participation through workshops and cultural initiatives like the Kya-Kya night market. This integrated approach not only preserves the area’s historical integrity but also fosters social cohesion, economic vitality, and collective pride. The study demonstrates that combining heritage conservation with inclusive design principles can transform urban spaces into dynamic, accessible, and sustainable environments. The findings offer valuable insights for other Southeast Asian cities facing similar heritage revitalization challenges.

The Campus Teaching Program is a concrete implementation of the Freedom to Learn policy, which positions students as agents of educational transformation in elementary schools, particularly in disadvantaged, frontier, and outermost (3T) areas. One fundamental problem faced by elementary schools in these areas is students' poor understanding of legal norms and school regulations. This condition contributes to high rates of disciplinary violations and rampant bullying behavior, such as verbal harassment, exclusion, and peer coercion. This study aims to analyze the contribution of the Campus Teaching Program in fostering legal awareness in elementary school students through a character education approach. The study used a qualitative approach with a case study method and was conducted at Budisari Public Elementary School, Cililin District, West Bandung Regency. Data were obtained through in-depth interviews with teachers, students, and student participants; participant observation during the learning process; and documentation of activities. Data validity was ensured through methodological triangulation and member checking techniques. The results indicate that the involvement of student teachers in the Campus Teaching Program facilitated the internalization of legal values through learning that integrates character education into both subjects and extracurricular activities. Students successfully developed various educational strategies, such as simulations of school regulations, role-plays about the consequences of violations, and group discussions on the values of honesty, responsibility, and mutual respect. The implementation of these activities resulted in increased student legal awareness, as evidenced by greater compliance with school regulations, fewer disciplinary violations, and a significant decrease in bullying incidents.

This research examines the Denok Dance as Therapy for Schizophrenia Mental Disorders through a Psychoanalytic Approach at RSJ Prof Dr. Soerojo Magelang. The aim of the research is to find out the form of dance, the method of dance as therapy and the implementation of Denok dance in the media of therapy for patients with the mental disorder Schizophrenia. The research method is a naturalistic qualitative research method. The data collection process includes observation, interview and documentation techniques. The data validity technique used by researchers is triangulation techniques. The researcher used three stages of data analysis, namely data reduction, data presentation, and conclusion drawing. The results of the research show that the therapy method can increase awareness and emotional stimulation in patients with schizophrenia mental disorders.

Ports are critical infrastructure in maritime transportation, facilitating the movement of goods and people while serving as hubs for economic activities. The Tanjung Pakis Class III Harbormaster and Port Authority Office (KSOP) utilizes the Electronic Reporting Information (SIRANI) application for reporting loading and unloading data. However, challenges such as discrepancies, technical disruptions, and delays in data processing often arise. This study aims to describe the loading and unloading data processing and the efficiency of reporting time on the SIRANI application at KSOP Class III Tanjung Pakis. Employing a descriptive qualitative approach through interviews, observations, and documentation, the research finds that data processing is less effective due to low data validity and errors in the Inaportnet platform. Reporting to SIRANI is also inefficient due to delays in data handling and technical issues with the application. Corrective measures, such as early data verification and manual data handling by reporting officers, have improved effectiveness by reducing the process from five to three steps and cutting reporting time from 6 hours to 3 hours and 30 minutes. The study concludes that optimizing data processing and inter-unit coordination can enhance the effectiveness and efficiency of reporting. Recommendations for future research include real-time integration and the development of backup mechanisms to address technical disruptions.

This study aims to determine the influence of Work Motivation, Work Environment, and Job Satisfaction on Employee Productivity at PT. Nihon Seiki Indonesia. This research is motivated by the phenomenon of declining employee productivity as shown by the non-achievement of work targets in recent months. This problem indicates the possibility of a decline in internal quality that needs to be evaluated, such as low motivation, less supportive work environment conditions, and less than optimal job satisfaction. This decline can also have an impact on the company's overall performance, including in terms of efficiency, production quality, and customer satisfaction that are declining over time. The method used in this study is a quantitative method with a descriptive and verifiable approach. The data collection technique was carried out through the distribution of questionnaires to 90 employees as a sample of the total population of 115 employees working in the company. The research instrument was tested through validity and reliability tests. Data were analyzed using multiple linear regression analysis, t-test (partial), F test (simultaneous), and determination coefficient (R²) test, with the help of SPSS software version 26. The results of the study show that Work Motivation, Work Environment, and Job Satisfaction have a significant effect on Employee Productivity, both partially and simultaneously. These findings confirm that the increase in employee work productivity is not only dependent on external factors such as technology and management systems, but is also highly determined by internal factors that are directly related to individual comfort and satisfaction at work. Therefore, company management needs to focus more on efforts to create a conducive work environment, build strong motivation, and increase employee job satisfaction as a strategy to optimize productivity. In addition, continuous training and effective communication between teams also need to be improved to maintain morale, collaboration, and the achievement of overall organizational targets.

The rapid development of artificial intelligence (AI) in the digital era has raised a variety of ethical issues that urgently need to be addressed wisely. In Indonesia, Pancasila as the foundation of the state has significant potential to become an ethical foundation in the development of responsible and humanity-oriented AI. This research uses a qualitative method with a literature study approach, examining various academic sources, such as relevant journals, books, and scientific articles. The analysis was conducted through content analysis techniques and reinforced with source triangulation to ensure the validity of the data. The results showed that the values of each precept in Pancasila are highly relevant to the ethical principles of AI, such as moral and spiritual responsibility reflected in the first precept, respect for human rights in the second precept, and the importance of democratization of technology and equitable distribution of benefits stated in the fourth and fifth precepts. Therefore, the integration of Pancasila values in every stage of AI development and application is crucial. This is so that the resulting technology is not only technically superior, but also reflects justice, inclusiveness, and commitment to human values. Collaboration between government, academia, industry, and society is the key to making Indonesia a pioneer in ethical and humanist AI development.

This study employed a descriptive qualitative approach. Data collection methods included structured interviews, non-participant observation, and documentation. The informants were the principal, the Islamic aqidah and akhlak (belief and moral) teacher, and students at MA Minhajut Thullab. Data analysis techniques included data collection, data reduction, data presentation, and conclusion drawing. Data validity was verified using data source triangulation. This research discusses how Akidah Akhlak learning is implemented to prevent juvenile delinquency at MA Minhajut Thullab Sumberberas in the 2024/2025 academic year. The study was conducted through observation, interviews, and documentation. The results show that Akidah Akhlak learning is designed with thorough planning, interactive implementation, and comprehensive evaluation focusing not only on students’ knowledge but also on their attitudes and behavior. Teachers apply approaches that relate to students’ daily lives, along with motivation and role-modeling. Supporting factors include the religious school environment and competent teachers. Meanwhile, obstacles include limited facilities and the diverse backgrounds of the students. Overall, Akidah Akhlak learning has proven effective in helping students develop discipline, respect, and avoid deviant behavior.

This study aims to determine the influence of Digital Marketing, Taste and Promotion variables on Purchasing Decisions at Mi Ayam and Bakso 45 Burengan. This type of research is quantitative research. The data for this study were obtained through questionnaires, interviews, and literature studies. The analysis techniques used were Validity Test, Reliability Test, Classical Assumption Test, Multiple Linear Regression Analysis, t-test, F-test and Determination Coefficient Test. The results of the t-test of the digital marketing, taste and promotion variables had a significant partial effect on purchasing decisions with sig <0.05. The results of the F test can be concluded that digital marketing, taste and promotion have a simultaneous and significant effect on Purchasing Decisions at Mi Ayam and Bakso 45 Burengan with sig. <0.05.