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Air quality in Western Java is highly dynamic and shaped by environmental changes influenced by intense human activities. Aerosols—tiny particulate matter that affects air quality, weather, and climate—can be quantified using Aerosol Optical Depth (AOD), which measures aerosol concentrations in the atmospheric column. This research uses spatial regression analysis to examine the spatial distribution of AOD from GEE’s platform (Google Earth Engine) and its relationship with rainfall and wind patterns during both the wet and dry seasons. The findings indicate that wind speed does not significantly impact AOD values, but wind direction does affect the distribution of rainfall and AOD, likely due to the monsoon system. During the wet season (December to March), high-intensity and widespread rainfall effectively cleanses the atmosphere of aerosols, leading to no significant effect on AOD (p-value > 0.05). In contrast, during the dry season, rainfall significantly influences AOD spatial patterns (p-value < 0.05). These results highlight the intricate interplay between meteorological factors and aerosol’s behavior, emphasizing the seasonal variability in their interactions.

Global climate change demands immediate technological advancements, particularly in the transport industry that continues to use fossil fuels. One viable solution is to reduce the size of vehicle engines to make them more fuel-efficient and lower carbon emissions. The purpose of this research is to assess the effect of reducing engine size on fuel consumption and CO₂ emissions in low-cost green car hatchbacks in Indonesia. The technique employed is straightforward analytical modeling, employing Pearson correlation analysis and linear regression among three significant variables: engine capacity, fuel economy, and CO₂ emission. The data are obtained from the technical specifications of four hatchback automobile models, all of which have an engine capacity of less than 1,200 cc. Findings indicate that smaller engine capacity is accompanied by greater fuel economy and lower carbon emissions. The lowest engine size of 998 cc is used in the Toyota Agya, which demonstrates the most efficient fuel and lowest emissions. The statistical analysis shows that there is an inverse relationship between engine size and fuel efficiency, but a positive relationship between engine size and CO₂ emissions. The limitation of sample size causes reduced statistical power of the model. In conclusion, engine downsizing can prove to be a productive approach in promoting green schemes, but additional research with a larger data set and other determinants must be undertaken to establish a more advanced and precise model.

The rapid advancement of the internet and social media has led to the emergence of social commerce, which integrates e-commerce with social media platforms. Reviews, as a form of electronic word-of-mouth (e-WOM), have become a key information source relied on by consumers in social commerce. However, the growing presence of buzzers and paid endorsements producing fake reviews has weakened the relevance and trustworthiness of e-WOM, including both online customer reviews and influencer reviews. This study aims to examine the impact of online customer reviews and influencer reviews on the purchase intention of Somethinc products on TikTok’s social commerce platform. The research adopts a quantitative approach with purposive sampling, involving 120 TikTok users in Bandar Lampung as respondents. Data were analyzed using multiple linear regression with SPSS 27 software. The findings reveal that both online customer reviews and influencer reviews significantly and positively influence purchase intention. These results suggest that exposure to online customer and influencer reviews can enhance consumers’ purchase intention toward Somethinc products on TikTok social commerce.

The rapid advancement of digitalization has transformed marketing communication, driving significant changes that directly affect company stability. To maintain and increase sales, businesses must adopt effective marketing strategies that boost consumer purchasing intentions. PT. Nutrifood Indonesia, a leading food and beverage company, has successfully sustained high sales for its product Nutrisari, achieving first place in the Top Brand Index for powdered fruit juice drinks in Indonesia with a 55.60% sales index in 2024. This success is closely linked to the company’s use of integrated marketing communication tools to compete in a dynamic market. This study aims to analyze the influence of advertising, activities & experiences, and social media marketing on consumers’ purchase intention of Nutrisari products in Lampung Province. Employing a quantitative research approach, data were collected through questionnaires distributed to 150 respondents residing in Lampung Province who expressed purchase intention toward Nutrisari. The data were analyzed using multiple linear regression with the assistance of SPSS version 27. The findings indicate that advertising, activities & experiences, and social media marketing each have a positive and significant impact on consumers’ purchase intention. These results underscore the importance of integrated marketing communication strategies in enhancing consumer engagement and driving purchase intention in competitive markets

This study aims to examine the influence of Islamic Corporate Governance on the performance of Maqasid Shariah in Islamic Commercial Banks in Indonesia. The performance of Maqasid Shariah is measured using the Maqasid Shariah Index, which consists of three main dimensions: educating individuals, establishing justice, and promoting public interest. The independent variables in this study include components of Islamic Corporate Governance, namely the Board of Commissioners, the Sharia Supervisory Board, and Independent Commissioners. Firm size and firm age are employed as control variables. The study uses a sample of Islamic Commercial Banks in Indonesia that are registered with the Financial Services Authority (OJK) during the period of 2021–2023, with a total of 33 data observations. Data analysis was conducted using panel data regression with the Stata 17 application. The results indicate that the Board of Commissioners and Independent Commissioners do not have a significant effect on Maqasid Shariah performance, while the Sharia Supervisory Board has a significant negative effect on the Maqasid Shariah performance of Islamic Commercial Banks in Indonesia registered with the Financial Services Authority (OJK).

This study aims to determine the effect of lecturers' teaching styles on student achievement at Stella Maris University, Sumba. The research method used is quantitative with a survey approach through questionnaires and observations. Lecturers' teaching styles are categorized into four types, namely facilitator, demonstrator, delegator, and authoritarian styles. The results of the observation show that the facilitator style is the most dominant style used (45%), followed by demonstrator (35%), delegator (15%), and authoritarian (5%). Data analysis using simple linear regression shows an R Square value of 0.468, which means that the lecturer's teaching style explains 46.8% of the variation in student achievement. In addition, a significance value of 0.000 (<0.05) is obtained, which indicates that there is a significant influence between the lecturer's teaching style and student achievement. This finding confirms that the application of the right and participatory teaching style can improve student learning outcomes.

Firm value is the company's performance reflected in the stock price, which is determined by the demand and supply in the capital market, representing public perception of the company's performance. This study aims to obtain empirical evidence on the influence of millennial leaders and CSR disclosure on firm value, with firm age as a control variable, in companies listed in the LQ45 Index from 2021 to 2023. The population of this study consists of 45 companies. Sampling was conducted using a non-probability sampling method with a purposive sampling technique, resulting in a total of 16 company samples. The analysis technique employed is multiple linear regression analysis. The results show that millennial leaders positively affect firm value, while CSR disclosure negatively affects firm value. This study provides theoretical implications by offering additional information and empirical evidence regarding the influence of millennial leaders and CSR disclosure on firm value. It also offers practical implications for company leaders to pay more attention to factors that can enhance firm value.

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.

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.

This study aims to examine and analyze empirically the influence of gratitude and self concept on optimism patient cancer in the Hospital Dr. Cipto Mangunkusumo Jakarta. The method used in this research is correlational quantitative, sampling technique using the incidental sampling  used in this research were 100 persons respondent. Data collection was carried out through questionnaires, interviews and observation. Self report technique is used in collecting instrumen data. The data collected was analyzed with a multiple regression test with the help of the Statistical Package for Social Sciences (SPSS) program 20.0 for Windows. The research results show that gratitude and self concept together can be a significant predictor of optimism in patient cancer. in the Hospital Dr. Cipto Mangunkusumo Jakarta. This means that the higher gratitude and self concept, the higher the optimism. Conversely, the lower the gratitude and self concept, the lower the optimism for patient cancer. It is recommended to improve optimism by increasing gratitude in cancer patients through the sosialisation, education and social support by family, friends, community members and health workers    

 This study aims to test and analyze the influence of leadership style , organizational culture and organizational justice partially and simultaneously on the performance of employees of the Bank Indonesia Jember Representative Office. The population in this study were all employees of Bank Indonesia Jember with a sampling technique of saturated sampling technique totaling 42 employees. The analysis method used is multiple linear regression analysis. Based on the results of the data analysis, it shows that partially, leadership style does not have a significant effect on employee performance. However, certain aspects such as decision making, motivation, communication, employee control, and emotional control play an important role. Improvements in this aspect can support performance indirectly. Organizational culture significantly affects employee performance. Self-awareness, aggressiveness, personality, performance, and team orientation play a role in creating a productive work environment. Organizational justice does not significantly affect employee performance. Indicators such as resource allocation, procedural fairness, and personal relationships play an important role. The three variables ( leadership style , organizational culture, and organizational justice) together affect employee performance. In addition, the researcher's suggestions for further research are expected to complement the limitations of the researcher's problems such as increasing the number of samples, for example all employees of KpwBI Jember, or adding independent variables to be studied, for example motivation, discipline, workload, occupational health and work life balance.

The Influence of Crew Skills, Safety Equipment Maintenance, Safety Regulation Compliance, and Crew Work Coordination on Crew Performance at PT. Pelni (PERSERO) in Tanjung Wangi Port. This study aims to analyze the influence of crew skills, safety equipment maintenance, compliance with safety regulations, and work coordination on crew performance at PT Pelni (Persero) in Tanjung Wangi Port. This study uses a quantitative approach with a survey method through questionnaires and multiple linear regression analysis. The results of the study indicate that partially, crew skills (X1), safety regulation compliance (X3), and crew work coordination (X4) do not have a significant effect on crew performance (Y). However, safety equipment maintenance (X2) is proven to have a significant effect partially on crew performance (Y). Meanwhile, simultaneous analysis reveals that the four variables, namely crew skills (X1), safety equipment maintenance (X2), safety regulation compliance (X3), and crew work coordination (X4), together have a significant impact on improving crew performance (Y). These findings indicate that although some factors are not significant individually, the combination of the four variables makes a significant contribution in determining the overall level of crew performance.

The purpose of this Study was to determine the effect of skills and work abilities on employee work productivity at PT. Bastian Olah Sawit Simpang Tungkal? I simultaneously and partially. This study is a associative study, the variables used are skills, abilities on employee work productivity. The populationin this study was 133 employees taken as many as 58 samples. Primary data needed as a basis for analysis, while the data collection technique was a questionnaire, the analysis technique used was multiple linear regression, hypothesis testing. f-fees ,t-test and coofecient of determination. The results of this study are:there is a significant influence of skills and abilities on the work productivity of employees of PT. Bastian Olah Sawit Simpang Tungkal. there is a significant influence of skills on the work productivity of employees of PT. Bastian Olah Sawit Simpang Tungkal. there is a significant influence of abilities on the work productivity of employees of PT. Bastian Olah Sawit Simpang Tungkal. As evidenced by the calculated t value being smaller that the t table

To determine the effect of financial inclusion based on the number of savings accounts, the number of ATM machines, and the number of deposit accounts on bank stability in banking sector companies listed on the Indonesia Stock Exchange The data used is secondary data, with data collection techniques using the documentation method. The sample in this study used the purposive sampling method, namely 19 banking sector companies listed on the IDX in 2019-2023. The quantitative analysis technique uses a multiple linear regression model using SPSS Version26.The results of this study indicate that 1) There is a significant influence of financial inclusion simultaneously on bank stability 2) There is an influence of financial inclusion based on savings accounts partially on bank stability 3) There is an influence of financial inclusion based on the number of ATM machines partially on bank stability 4) There is an influence of financial inclusion based on the number of deposit accounts partially on bank stability in banking sector companies listed on the Indonesia Stock Exchange in 2019-2023. The limitations of this study are only banking sector companies listed on the IDX in 2019-2023. This study only covers 19 companies from the banking sector listed on the Indonesia Stock Exchange. This sample only represents 40.4% of the population of companies in the banking sector. Several companies do not meet the criteria because they do not consistently publish and present complete financial reports, so the number of samples used in this study is limited. This research can be used as a consideration for the Company in formulating the Company's strategy to be taken. To improve access to financial services for people in the lower classes through the resilience of the banking funding base. This research update introduces a new method in data analysis using SPSS version 26 and banking data for 2019-2023.

In this study, teenage social media users in Bukittinggi are asked to examine the connection between social anxiety and husnudzon, or optimistic thinking. Purposive sampling was used to choose 114 teenagers, ages 15 to 19, who then took part in survey design. Positive thinking and social anxiety levels were assessed using standardized questionnaires, the Husnudzon Scale and the Social Anxiety Scale for Adolescents, respectively. Product moment analysis was used in the data analysis. Higher levels of positive thinking are linked to lower levels of social anxiety, according to the research, which showed a substantial negative association between husnudzon and social anxiety. Husnudzon's role as a strong predictor of social anxiety was further validated by multiple regression analysis, which also helped to explain a large variation in the participants' social anxiety levels.    

Customer satisfaction is a key factor in the success of a company, especially in the technology industry that demands fast, accurate, and quality service. This study aims to analyze the effect of Speed, Maintenance, Accuracy, and Marketing Strategy variables on Customer Satisfaction at CV. Andi Jaya Technology. The research method used is regression analysis with t-test to measure the effect of each variable partially and F-test to see the effect simultaneously. The results of the study show that partially, the Speed ​​variable has a t-count value of 4,352, Maintenance of 5,573, Accuracy of 6,167, and Marketing Strategy of 3,166. All t-count values ​​are greater than t-table (1,677 at α = 5%), so it can be concluded that each variable has a significant effect on Customer Satisfaction. In addition, the results of the simultaneous test show that the variables Speed, Maintenance, Accuracy, and Marketing Strategy together have a significant influence on Customer Satisfaction with an F-count value of 9.515, greater than the F-table (2.58 at α = 5%). The results of this study confirm that factors such as speed of service, system maintenance, accuracy in work, and effective marketing strategies play an important role in increasing customer satisfaction. Therefore, CV. Andi Jaya Technology needs to continue to improve these aspects in order to maintain customer loyalty and increase the company's competitiveness in the technology industry.

This study aims to analyze the influence of organizational support and work environment on employee adaptation at the Tembalang District Office, Semarang City. Employee adaptation is a crucial factor in achieving work effectiveness in the government sector, especially in facing organizational dynamics and policy changes. The research sample consisted of 93 district employees selected using a census method. Data was collected through a questionnaire using a Likert scale (1–5) and analyzed using multiple linear regression in SPSS version 25. The results show that organizational support has a positive and significant effect on employee adaptation. Similarly, a conducive work environment significantly influences the improvement of employees’ adaptability. The implication of this study indicates that government organizations need to enhance support for employees and create a better work environment to foster optimal employee adaptation and performance

This study aims to analyze the influence of digital transformation and change management on the performance of investigators at the Ditreskrimum Polda Bali in implementing the Electronic Investigation Management (E-MP) application. The research focuses on understanding the extent to which these factors affect investigative effectiveness and identifying key drivers of investigator performance improvement in a digital system. A quantitative approach was employed using a survey method. Data were collected from 128 investigators at Ditreskrimum Polda Bali through questionnaires and analyzed using multinomial logistic regression. The analysis included the Likelihood Ratio Test, Wald Test, and Pseudo R-Square to assess model significance and explanatory power. Principal Component Analysis (PCA) was applied to address multicollinearity and enhance regression model stability. The findings indicate that digital transformation and change management significantly influence investigator performance. The Nagelkerke R-Square value of 0.866 suggests that the model explains 86.6% of variability in investigator performance. Furthermore, the Likelihood Ratio Test results confirm that predictor variables have a significant impact on the dependent variable with a p-value < 0.05. the regression equation is as follows ln(P(Y=0)P(Y=1))=β0+β1X1+β2X2. In conclusion, effective implementation of digital transformation and change management positively contributes to improved investigator performance in the use of E-MP. Therefore, enhancing digital technology training and strengthening change management strategies are highly recommended to optimize the utilization of E-MP in investigative environments.

In the era of the Industrial Revolution 4.0, the performance of the National Police, especially the Intelligence and Security Unit, is very important for maintaining public security and order. The increasing work demands in securing the stages of the General Election and Regional Election are one of the main challenges faced by the members of the Intelkam Police Resort of Kediri. The performance of the members can be influenced by several factors, including work discipline, psychological capital, and burnout. Work discipline is adherence to rules and procedures, and psychological capital is related to optimism and mental resilience. Burnout is physical and emotional exhaustion due to high work pressure. Therefore, the objective of this research is to determine the influence of work discipline (X1), psychological capital (X2), and burnout (X3) on the performance (Y) of the members of the Intelkam Unit of the Kediri Police. This research uses a quantitative approach with a survey method conducted on all members of the Satuan Intelkam Polres Kediri, totaling 83 respondents. The data analysis technique was preceded by conducting an instrument test, classical assumption test, and hypothesis test by calculating the multiple linear regression value, which resulted in the regression equation: Ŷ = 2.769 + 0.151X1 + 0.701X2 - 0.002X3. In the analysis of the research data, it shows that work discipline and psychological capital partially have a positive and significant effect on performance, while burnout has a negative effect on performance. The t-test value for work discipline, 13.477, is greater than the t-table value of 1.66342, and the t-test value for psychological capital, 16.475, is also greater than the t-table value. This indicates that both variables significantly affect performance. The adjusted R square value of 76.6% indicates that work discipline, psychological capital, and burnout affect the performance of the members of the Satuan Intelkam Polres Kediri.

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.