The purpose of this study was to determine the effect of display layout and product variation on consumer purchasing interest at Rumah Batik Serunai, Pekanbaru City. The research method used is a quantitative approach with data collection techniques in the form of questionnaires which were responded to by 77 respondents. Respondents were determined using the Accidental Sampling technique. This study uses analysis such as validity test, reliability test, normality test, multicollinearity test, heteroscedasticity test, multiple linear regression, t-test, F-test and coefficient of determination test (R2). Based on the analysis that has been carried out, the results show that the display layout and product variations have a positive and significant effect on consumer purchasing interest at Rumah Batik Serunai, Pekanbaru City

Customer loyalty is a commitment held by individuals or groups to buy or support a product or service again on an ongoing basis. The purpose of this study was to determine the effect of social media marketing and customer experience on customer loyalty in customers of Yong Bengkalis Coffee Shop in Pekanbaru. The population of this study were 14,095 customers and a sample of 99 respondents was obtained using purposive sampling technique. This research uses quantitative methods and descriptive statistics with explanatory research models using SPSS 30.0 tools. The output results of data processing state that partially social media marketing has a significant effect on customer loyalty, customer experience has a significant effect on customer loyalty and simultaneously social media marketing and customer experience have a significant effect on customer loyalty in customers of  Yong Bengkalis Coffee Shop in Pekanbaru.

The purpose of this study was to determine the effect of shopping enjoyment and sales promotion on impulsive buying of shopee marketplace on students of Riau University. The method used is a quantitative method with a data collection technique in the form of a questionnaire responded to by 384 respondents. The sampling technique uses a purposive sampling technique. This study uses analysis such as validity test, reliability test, normality test, multicollinearity test, heteroscedasticity test, multiple linear regression, t-test, F-test, and coefficient of determination (). Based on the analysis that has been done, the results show that shopping enjoyment and sales promotion have a positive and significant effect on impulsive buying of the Shopee marketplace for students at the University of Riau

Musyarakah Mutanaqisah (MMQ) is a form of sharia-based financing that offers a home ownership solution free from elements of interest (riba). This article aims to analyze the application of the MMQ contract in housing finance, compare it with the conventional mortgage scheme (Kredit Pemilikan Rumah/KPR), and evaluate its impact on community welfare. This study employs a descriptive qualitative approach through literature review of academic sources, regulations, and other relevant data. The analysis shows that MMQ is superior in terms of compliance with Islamic principles, fairness in risk sharing, and flexibility in payment structure. Furthermore, the MMQ scheme contributes to the improvement of social and economic well-being, particularly for the lower-middleincome segment of society. Nevertheless, its implementation still faces challenges such as the risk of default and the need for strengthened risk management systems. Therefore, collaboration between Islamic financial j, the government, and the public is essential to optimize the potential of MMQ as a fair and sustainable alternative for home financing

This research was conducted on students of the Faculty of Economics and Business at Slamet Riyadi University in Surakarta who use the e-commerce platform Tokopedia. The purpose of this study is to analyze the significance of the influence of brand ambassadors, electronic word of mouth (e-WOM), and price perception on purchasing decisions in Tokopedia's e-commerce. The type of data used is quantitative data, with primary data sources employed in this research. The data analysis techniques used in this study include multiple linear regression analysis, classical assumption tests, t-tests, F-tests, and the coefficient of determination (R²).
The results of the multiple linear regression analysis from this study are represented by the equation Y = 6.518 + 0.695 X1 + 0.168 X2 - 0.210 X3 + e. The t-test results indicate that the variables of brand ambassador, electronic word of mouth (e-WOM), and price perception have a significant effect on purchasing decisions in Tokopedia's e-commerce. The F-test results show that the model is appropriate for predicting the influence of brand ambassadors, electronic word of mouth (e-WOM), and price perception on purchasing decisions in Tokopedia's e-commerce. The coefficient of determination (R²) obtained is 0.594, meaning that the independent variables X1 (brand ambassador), X2 (electronic word of mouth (e-WOM)), and X3 (price perception) contribute 59.4% to Y (purchasing decisions). The remaining 40.6% (100% - 59.4%) is explained by other variables not included in this study.

Along with the increasing public interest in fun recreational activities such as water parks, the tourism sector has grown rapidly in recent years. This study examines the effect of physical evidence and perceived value on revisit intention through visitor satisfaction as an intervening variable for visitors to Labersa Waterpark Riau Fantasi. This research was conducted using quantitative research methods. The sampling technique used was Accidental Sampling with a sample size of 98 respondents. The data obtained is then processed using SmartPLS 4.0 software. The results of this research are : (1) physical evidence has a significant effect on revisit intention, (2) perceived value has a significant effect on revisit intention, (3) physical evidence has a significant effect on visitor satisfaction, (4) perceived value has a significant effect on visitor satisfaction, (5) visitor satisfaction has a significant effect on revisit intention, (6) visitor satisfaction is able to mediate the effect of physical evidence on revisit intention, (7) visitor satisfaction is able to mediate the effect of perceived value on revisit intention. 

The transition to Industry 5.0 necessitates a robust legal framework to regulate human capital investment, ensuring digital workforce development aligns with labor protections and Sustainable Development Goals (SDGs). This study examines the regulatory structures governing human capital investment in Indonesia, the European Union, and the United States, evaluating their effectiveness in addressing digital transformation challenges, AI-driven employment governance, and workforce adaptability. A mixed-methods approach integrates legal analysis with empirical assessments of policy effectiveness, workforce investment trends, and labor market outcomes. Findings reveal significant disparities in AI workforce governance, skill accreditation, and automation labor rights. Indonesia’s fragmented legal framework hinders workforce reskilling and AI employment governance, while the European Union’s AI Act provides a structured, albeit inconsistently implemented, model for digital employment regulation. The United States, despite its technological leadership, lacks federal AI workforce policies, leading to state-level regulatory variations. The study underscores the necessity of harmonized legal frameworks to bridge workforce skill gaps, protect labor rights, and advance SDG-aligned workforce policies. Future legal reforms must prioritize AI governance, digital workforce training, and cross-border labor protections to ensure equitable workforce transitions. Strengthening public-private partnerships, standardizing AI employment regulations, and enhancing labor rights enforcement will be essential for fostering sustainable human capital investment in the industry 5.0 era. The contribution of research extends beyond theoretical frameworks, providing substantial implications for policy formulation, industry practices, educational advancements, and societal improvements.

The presence of natural antioxidants in medicinal plants plays a crucial role in inhibiting the detrimental effects of oxidative stress. The aim of this research is to explore more deeply all parts of A. esculenta L from flowers, fruits, seeds, leaves, and stems for the levels of compounds and antioxidant and enzyme inhibitor activities. The flowers demonstrated the highest TPC with 173.15942 ± 6.5083 mg GAE/g. The stems exhibited the lowest TPC value at 69.1967 ± 2.8408 mg GAE/g. The flowers also showed TFC value of 83.157 ± 2.021 mg QE/g while the stems displayed the lowest with 36.7240 ± 1.337 mg QE/g. IC50 value that the flowers possessed the highest antioxidant activity with 22.6539 ± 1.6452 mg/mL, whereas the stems displayed a slightly lower. In terms of the inhibitor of a-amylase activity, the flowers had an IC50 value of 102.4885 ± 11.4370 mg/mL whereas the stems had a lower. The highest IC50 value of the a-glucosidase inhibitor was 76.95 ± 12.0888 mg/mL in the flowers, and the lowest was in the stems. The highest IC50 of pancreatic lipase inhibitor was 109.5943 ± 9.7391 mg/mL in the flowers, and the lowest was in the stems. This study show that there is a relationship between the high content of total phenolic and total flavonoids on antioxidants, antidiabetic and antilipase activities.

Indonesia, a leading palm oil producer, generates 1,250 tons of Oil Palm Empty Fruit Bunches (OPEFB) waste daily, typically disposed of through polluting combustion. This study explores repurposing OPEFB as a substrate for erythritol production, a popular sweetener with minimal impact on blood sugar. The research utilized Moniliella pollinis mutant SP5, a yeast capable of producing erythritol from various substrates. The process involved acid hydrolysis of OPEFB followed by fermentation. When fortified with 15% v/v molasses, OPEFB successfully served as an optimal carbon source for erythritol production, achieving a mass yield of 0.2878 g/g. Further improvement came through the use of ethyl methane sulfonate (EMS) mutagenesis, with the best mutant (mutant 7) reaching a yield mass of 0.3298 g/g and volumetric productivity of 0.0534 g/L/h. This research aims to advance Indonesia's self-sufficiency in erythritol production while providing a sustainable solution for OPEFB waste reduction, simultaneously addressing economic and environmental concerns.

The use of synthetic feed additives in Peking ducks has adverse effects on their growth and productivity. Spirulina sp., a blue-green algae, has the potential to be used as a safe feed additive that can enhance the growth and productivity of ducks. This study aims to analyze the effects of Spirulina (Spirulina sp.) powder as a feed additive on the histomorphometry of the duodenum in Peking ducks (Anas platyrhynchos), focusing on the duodenal lumen diameter, villus height, villus width, mucosal tunic thickness, submucosal tunic thickness, and muscular tunic thickness. This study used a Completely Randomized Design (CRD) with 35 ducks divided into 5 treatments and 5 repetitions. The treatments included a control group and the addition of spirulina powder in feed at concentrations of 2.5%, 5%, 7.5%, and 10%. The data were analyzed by ANOVA with a significance level of 5%, followed by Duncan's test. The results of data analysis showed that spirulina powder had a significant effect (P<0.05) on villus height and duodenal mucosa tunica thickness. The conclusion of this study is that spirulina powder has the potential to be used as a feed additive to improve digestive performance in male Peking ducks, as evidenced by the increase in villus height and thick tunica mucosa in the small intestine. The novelty of this study lies in the utilization of spirulina powder as a feed additive to increase the size of the duodenal tissue structure in Peking ducks. The results of this study are expected to be a new reference on the potential of spirulina as a feed additive to improve poultry feed quality and digestive performance, especially in peking ducks.