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Modern infrastructure development often involves the use of mass concrete in large structural elements such as pile caps and foundations. However, massive concrete volumes trigger a significant temperature increase due to the heat of hydration that is difficult to dissipate, posing a risk of thermal stress and structural cracking. This study aims to analyze the temperature rise behavior of mass concrete and evaluate the effectiveness of combining chilled water and fly ash substitution in minimizing these thermal cracking risks.The research method employs a quantitative approach through laboratory testing at PT Adhimix RMC Plant Kaligawe. Specimen blocks measuring 40 x 40 x 100 cm were divided into three variations: normal concrete (BN), concrete with chilled water and 15% fly ash (BAF), and concrete with 25% fly ash (BF). Temperature was monitored using thermocouples at the core and surface for 14 days, then validated using the Portland Cement Association (PCA) formula. The results indicate that the integration of chilled water with 15% fly ash and the use of 25% fly ash significantly controlled extreme temperature surges at the 5th hour. The combination of chilled water and 15% fly ash produced the lowest core temperature of 37.3°C, far below the control concrete which reached 62.4°C. This proves that the combination of precooling methods and fly ash substitution is effective in reducing the heat of hydration during the early hardening period, although the use of 25% fly ash was found to be more stable in maintaining mass concrete temperature.

Population growth and socio-economic activities increase traffic volume, affecting the performance of the Raden Kusno – A. Djaelani – Sujarwo signalized intersection. This study aims to analyze the intersection’s current performance, estimate its condition over the next five years, and formulate alternative treatment strategies. The research data include geometric characteristics, signal timing, vehicle speed, and traffic volume obtained from CCTV recording over a three-day observation period from moning to evening, as well as population and vehicle data for projection. The intersection performance was analyzed using the PKJI 2023 approach and VISSIM simulation. Under current conditions, the intersection operates at LOS E with delays of 45,12 seconds (PKJI 2023) dan 60,56 seconds (VISSIM). In the five-year projection, delays increase to 48,97 seconds with LOS E (PKJI 2023) and 131,29 seconds with LOS F (VISSIM). Modifying the signal from four to three phases with a 70-second cycle improves the current condition to LOS C, with delays of 24,50 seconds (PKJI 2023) and 29,43 seconds (VISSIM). For the five-year projection, adding a continuous left-turn lane results in LOS D with 27,04 seconds (PKJI 2023) and LOS C with 32,01 seconds (VISSIM).

This study aims to analyze the influence of product quality, brand image, and promotion on purchasing decisions for Nivea products in Batam City. The population in this study were consumers who use Nivea products in the Lubuk Baja District area with an unknown population size. The sampling technique used the Jacob Cohen formula, resulting in a sample size of 204 respondents using a purposive sampling method. The research data were analyzed using multiple linear regression methods supported by data quality testing, classical assumption tests, influence tests, and hypothesis tests. The results of the regression analysis showed that product quality had a 31.5% influence on purchasing decisions, brand image had a 62.7% influence, and promotion had a 27.4% influence on purchasing decisions. Furthermore, the results of the coefficient of determination test showed that the variables of product quality, brand image, and promotion were able to explain 83.2% of the variation in purchasing decisions. In addition, the results of the T test and F test proved that the three independent variables had a positive and significant influence, both partially and simultaneously, on purchasing decisions for Nivea products in Batam City.

This research focuses on the vocational interest and readiness to enter the workforce of students in the Light Automotive Engineering (TKRO) program at SMK Negeri 2 Sungai Penuh. The purpose of this study is to determine the relationship between students' vocational interest and their readiness to enter the workforce. This type of research is a descriptive study with a correlational approach. The study involved 64 students enrolled in Light Automotive Engineering (TKRO). The sample size taken for this research was 39 students, selected through stratified random sampling using the Taro Yamane formula. Questionnaires that have been declared valid and reliable were utilized to collect data regarding the students' vocational interest and their readiness to enter the workforce. The data analysis was conducted using the Product Moment correlation formula. The results of the data analysis indicate a positive and significant relationship between vocational interest and the readiness to enter the workforce among Light Automotive Engineering (TKRO) students at SMK Negeri 2 Sungai Penuh, with a correlation coefficient of 0.442 (greater than 0.316) and a significance coefficient of 2.9982 (greater than 2.02269) at a 5% significance level.

This literature study aims to analyze the strategies of local cosmetic brands in providing product variants for different skin types, setting affordable prices for the teenage segment, and minimizing side effect risks to increase purchase intention among beginner users. The method used is qualitative library research with a thematic synthesis approach following systematic literature review procedures. The results indicate that complete product variants enable beginner users to find products suitable for their skin conditions, reducing confusion and increasing confidence. Affordable prices are crucial for the teenage segment with limited budgets, allowing them to try products without excessive financial burden. Minimizing side effect risks through safe formulations, dermatological testing, ingredient transparency, and usage education builds a sense of security essential for beginner users. These three strategies are interconnected and collectively create a foundation of trust that drives purchase intention. Beginner users who feel their needs are understood, products are affordable, and risks are minimal will be more motivated to purchase and have the potential to become long-term loyal customers. This study contributes theoretically to enriching cosmetic marketing literature with a teenage and beginner user segmentation perspective and practically provides foundations for local brands in designing products, pricing strategies, and safety communications targeting this segment.

This study aims to analyze the effect of Brand Image, Product Quality, and Promotion on Purchase Decisions of Crocs sandals in Batam City. The research employs a quantitative approach using a survey method. Data were collected through questionnaires distributed to 119 respondents who are consumers of Crocs products in Batam City. The data analysis techniques include validity and reliability tests, classical assumption tests, multiple linear regression analysis, t-test, F-test, and coefficient of determination analysis, using SPSS version 26. The results indicate that Brand Image and Product Quality have a positive and significant effect on Purchase Decisions. Meanwhile, Promotion shows a positive but insignificant effect on Purchase Decisions. Simultaneously, Brand Image, Product Quality, and Promotion have a positive and significant effect on Purchase Decisions. The Adjusted R Square value of 0.905 indicates that 90.5% of the variation in Purchase Decisions can be explained by the three independent variables, while the remaining 9.5% is influenced by other factors not examined in this study. This research is expected to provide insights for companies in formulating more effective marketing strategies, particularly in strengthening brand image and improving product quality.

This study aims to determine the extent to which product innovation, brand image, and digital marketing influence the purchasing decisions of Scarlett Whitening consumers in the city of Batam. The subjects of this study are individuals who have used Scarlett Whitening products in Batam City in 2025. The population size could not be determined precisely, so the sample size was determined using the Lemeshow formula, with a total of 100 respondents selected through purposive sampling. The analysis method used is multiple linear regression, supported by a series of tests, including data quality tests, classical assumption tests, and hypothesis tests. The analysis results show that product innovation has an influence of 27.7%, brand image of 28.4%, and digital marketing of 26.5% on consumer purchasing decisions. Meanwhile, the coefficient of determination (R²) value indicates that simultaneously, these three variables can explain 28.9% of the variation in purchasing decisions. Furthermore, the results of the t-test and F-test prove that product innovation, brand image, and digital marketing have a significant effect, both partially and simultaneously, on the purchasing decisions for Scarlett Whitening products in Batam City. Keywords: Product Innovation,Brand Image, Digital Marketing, Purchase Decision.

This study was conducted to systematically explore the influence of the level of ease of transactions and the quality of e-commerce services on the process of determining consumer purchasing decisions in Batam City. The research framework was built with a descriptive-oriented quantitative approach through the involvement of 100 respondents who actively utilize digital transaction services, which were determined using a purposive sampling technique based on the Lemeshow formulation to ensure the adequacy and representativeness of the sample. Empirical data were collected through a structured questionnaire and then processed using statistical analysis stages that included testing the validity and reliability of the instrument, evaluation of classical assumptions, multiple linear regression modeling, and verification of hypotheses through t-tests and F-tests. The results of data processing revealed that the variable of ease of transactions contributed 18.8% to purchasing decisions, while service quality contributed an influence of 63.5%. The coefficient of determination (R²) reaching 73.3% indicates that both independent variables simultaneously have substantial explanatory power towards variations in consumer purchasing behavior. Both partial and simultaneous testing confirmed a significant influence, thus confirming that simplifying transaction mechanisms and strengthening digital service quality are strategic determinants in driving e-commerce consumer purchasing decisions in Batam City.

This study aims to elaborate on the determinants of consumer purchasing decisions by emphasizing the role of social media, trust levels, and product quality in the Blibli e-commerce ecosystem in Batam City. The applied methodological framework is based on a descriptive quantitative approach involving 204 respondents with active transaction track records, selected through a purposive sampling technique based on the Jacob Cohen formula to ensure proportionality and validity of sample representation. Empirical data were collected through a structured questionnaire, then processed using comprehensive statistical analysis stages that include instrument validity and reliability testing, classical assumption evaluation, multiple linear regression modeling, and hypothesis testing through partial (t) and simultaneous (F) tests. The analysis results revealed that social media intensity contributed 14.1% to purchasing decisions, trust influenced 36.0%, while product quality influenced 40.4%. The coefficient of determination (R²) value of 86.4% indicates that the three exogenous variables simultaneously have substantial explanatory power towards variations in purchasing decisions. The t-test and F-test findings consistently confirm the significant influence of both individual and collective factors, thus confirming that strengthening digital presence, platform credibility, and consistent product quality are strategic foundations in guiding the preferences and purchasing intentions of Blibli consumers in Batam City.

This study aimed to uncover the extent to which eWOM, perceived brand image, and platform ease of use influence consumer purchasing decisions for Skintific moisturizer on Tokopedia. The method employed was descriptive quantitative, selecting a sample of 96 consumers who had purchased Skintific products, using a purposive sampling technique based on the Lemeshow formula to ensure representativeness. Data were collected through a questionnaire and then analyzed using a series of tests including validity, reliability, classical assumption checking, multiple linear regression, and hypothesis testing using t- and F-tests. The analysis showed that eWOM contributed 13.9% to purchasing decisions, brand image 23.4%, and ease of use 46.1%. The coefficient of determination (R²) of 75.4% indicates that these variables collectively explain most of the variation in purchasing decisions. The t- and F-tests confirmed a positive and significant influence, both individually and simultaneously, on consumer purchasing behavior on Tokopedia.

This study aimed to examine the extent to which trust, perceived security, and ease of use of the GrabFood platform influence consumer transaction decisions in Batam City. The method used was descriptive quantitative, involving 204 respondents who had made purchases through GrabFood, selected through purposive sampling based on Jacob Cohen's formula to ensure representative results. Data were collected using a questionnaire and analyzed through a series of procedures, including validity and reliability testing, classical assumption checking, multiple linear regression, and hypothesis testing using t-tests and F-tests. The study findings revealed that trust contributed 22.0%, security 38.9%, and ease of use 23.2% to purchasing decisions. The coefficient of determination (R²) of 65.6% confirmed that these three factors simultaneously explained a significant portion of the variation in consumer purchasing behavior. Furthermore, t-tests and F-tests confirmed a positive and significant influence, both individually and collectively, on consumer decisions to use GrabFood.

This study aims to determine the influence of price and free shipping on purchasing decisions. This is a quantitative study using primary and secondary data. The sampling technique used was non-probability sampling with purposive sampling using the Slovin formula to determine the minimum number of respondents. The results of this study indicate that price influences purchasing decisions, free shipping does not influence purchasing decisions, and both price and free shipping influence purchasing decisions.

The financial performance of MSMEs is the result of a business's success in sustaining itself thru financial management. This research aims to provide information on the impact of financial literacy, payment gateways, and financial inclusion on the financial performance of MSMEs. This investigative activity involves two types of variables: independent variables consisting of financial literacy, payment gateways, and financial inclusion, while the financial performance of MSMEs is the dependent variable. Food and beverage MSMEs under the auspices of Rumah BUMN are the study population, totaling 337. The method for determining the sample size was determined using Slovin's formula, and sampling was conducted using specific criteria, resulting in a sample size of 77 respondents. The data analysis technique involves multiple linear regression analysis. This research activity found that each of the variables used, namely financial literacy, payment gateway, and financial inclusion, has a significant positive impact on the financial performance of MSMEs. The coefficient of determination shows that 91.3% of the variables of financial literacy, payment gateway, and financial inclusion are able to explain the financial performance variable of MSMEs.

Hotel Naripan is still facing challenges in ensuring its employees can have optimal ability and motivation. This occurs in employee performance which can be caused by the lack of training, the absence of rewards from the company. The purpose of this study is to analyze the effect of work ability and motivation on employee performance at the hotel, so that it can be an evaluation material for management to improve service quality and hotel competitiveness in the increasingly competitive hospitality industry. The research method used is quantitative. This method is used to study a specific population or sample with data collection through research instruments. The analysis carried out is quantitative and uses statistical techniques, with the main purpose of testing the hypothesis that has been previously formulated. The results of this research based on multiple linear regression tests, the value of the multiple linear regression coefficient of the work ability variable, has a positive value of 0.635, the value of the multiple linear regression coefficient of the independent variable work motivation, has a positive value of 0.043

Nursing services are a fundamental part of the hospital service system because nurses interact frequently with patients, particularly in inpatient rooms. The quality of nursing services significantly impacts patient satisfaction. This study aims to determine the relationship between the quality of nursing services and patient satisfaction in the inpatient rooms of UMMI Hospital Bogor. This study used a correlational analytical research design with a cross-sectional approach. The population in the study were 1,944 inpatients at UMMI Hospital Bogor. The sample calculation used the Slovin formula with a simple random sampling technique and obtained 332 respondents. The research instrument for the quality of nursing services was based on the five dimensions of SERVQUAL (tangible, reliability, responsiveness, assurance, and empathy) and a patient satisfaction questionnaire. Data analysis was performed univariately and bivariately using the Chi-Square Test statistic. The results showed that the majority of respondents rated the quality of nursing services as good, namely 214 people (64.5%), while respondents who rated the quality of nursing services as poor were 118 people (35.5%). Patient satisfaction results revealed that of the 332 respondents, the majority (230 people or 69.3%) expressed satisfaction, while 102 (30.7%) expressed dissatisfaction. The statistical test results showed a p-value of 0.000 (p < 0.05). The conclusion of this study is that there is a significant relationship between the quality of nursing services and patient satisfaction in inpatient wards. Therefore, continuous improvement in the quality of nursing services is necessary to enhance patient satisfaction and the quality of hospital services.

At MA Al-Mahdi Serang, there are challenges in the form of psychological distance between students and guidance and counseling teachers, as well as the negative influence of peers in the digital era that threaten students' independence and religious character. Islamic peer counseling is an alternative guidance and counseling strategy to support students' psychological needs while strengthening their independence and religious character. This study aims to (1) analyze the implementation of Islamic peer counseling services, (2) determine their influence on student independence, (3) explore their contribution to fostering religious character, and (4) formulate an effective Islamic guidance and counseling service model at MA Al-Mahdi Serang. This study uses a qualitative approach with a case study design. The research informants were 13 people consisting of the principal who is also a guidance and counseling teacher, the vice principal for curriculum, subject teachers, and students. Data were collected through participant observation, in-depth interviews, and documentation, then analyzed using thematic analysis. The results of the study indicate that: (1) the implementation of Islamic peer counseling is carried out through a peer counselor recruitment process based on the criteria of noble character and communication skills, as well as counseling skills training based on the values ​​of brotherhood and tabayyun; (2) Islamic peer counseling services have a positive influence on student independence, particularly in self-management and decision-making; (3) Islamic peer counseling contributes to the development of religious character through the internalization of the values ​​of honesty, responsibility, discipline in worship, and the culture of tawashau bil haqq; and (4) the formulation of an Islamic peer counseling model based on the values ​​of brotherhood as an adaptive and contextual guidance and counseling service in madrasas.

 The ecological crisis calls for faith formation that can foster contextual ecological awareness among the faithful. One relevant approach is through catechesis that integrates local wisdom, such as the Batang Garing symbol in Dayak culture. This study aims to explore the ecological values embedded in the Batang Garing symbol and to reflect on them in the light of Church teachings in order to formulate a contextual ecological catechesis model. The method used is qualitative research with a literature study approach, employing descriptive-analytical and comparative analysis of theological and cultural sources. The findings show that Batang Garing contains values of relationality, cosmic balance, and moral responsibility that are aligned with the concept of integral ecology in Church teachings. The integration of these values into catechesis enables a more contextual, communicative, and transformative faith formation. The implication of this study highlights the importance of developing catechetical models based on local culture as an effective means to foster ecological awareness among the faithful and to encourage concrete actions in caring for creation as an expression of faith.

The matcha cafe industry in Indonesia is experiencing rapid growth in line with increasing matcha consumption and the growth of matcha-based cafe brands. This growth has led to increasingly competitive competition in the beverage business sector. Feel Matcha, as the first matcha cafe in Indonesia, faces competitive pressure from various new brands such as Uki Matcha and Matchaboy. This study aims to determine the partial and simultaneous effects of Product Quality, User Generated Content, and Brand Image on the Purchase Intention of Feel Matcha consumers in DKI Jakarta. This is a quantitative study. The technique used to determine the population is non-probability sampling. The population in this study is all Feel Matcha consumers, the exact number of which is unknown. The sample used in this study consisted of 97 respondents, with accidental sampling and using the Lemeshow formula. In this study, the data were analyzed using SPSS version 26 and Microsoft Excel 2021. The results of this study indicate that Product Quality, User Generated Content, and Brand Image partially influence Purchase Intention.

Strawberries are horticultural commodities that are highly susceptible to postharvest deterioration due to their high respiration rate, microbial activity, and oxidative degradation, resulting in a relatively short shelf life. This study aimed to evaluate the effectiveness of edible coatings in extending strawberry shelf life through a systematic literature review (SLR) approach. Literature was collected from several scientific databases using keywords related to edible coating, shelf life, and strawberry, covering publications from 2019–2026. From an initial 109 articles, a selection process based on inclusion and exclusion criteria resulted in 35 articles specifically discussing the application of edible coatings on strawberries. The synthesis results showed that all studies reported an extension of shelf life after edible coating application, although the effectiveness was influenced by the type of material, formulation, and storage conditions. Chitosan was the most widely used coating material due to its natural antimicrobial activity and excellent film-forming ability. The incorporation of bioactive compounds such as essential oils, plant extracts, and phenolic compounds was proven to enhance antifungal and antioxidant activities. In addition, nanotechnology-based systems demonstrated better preservation performance compared to conventional systems. However, methodological standardization and industrial-scale validation are still required to support commercial implementation.

Calcium deficiency among Indonesian adolescents remains a nutritional concern that necessitates the development of food products utilizing alternative calcium sources. Eggshell powder has potential as a calcium fortification ingredient due to its high calcium content and abundance as food waste. This study aimed to analyze the effect of eggshell powder substitution on the organoleptic characteristics and acceptability of oatmeal cookies among adolescents aged 10–15 years. This experimental study used a Completely Randomized Design with four substitution levels: 0% (F0), 5% (F1), 6% (F2), and 7% (F3). Organoleptic quality testing was conducted by three trained panelists, while hedonic testing was performed by 30 adolescent panelists on selected formulas (F0, F2, F3), analyzed using the Friedman test (α = 0.05). Organoleptic quality results showed that F2 and F3 had characteristics closest to the control, while F1 showed higher negative attribute intensity in taste and texture parameters. Hedonic test results showed no significant differences between formulas across all parameters (p > 0.05), with mean scores ranging from 3.87 to 4.63 out of a scale of 5 (very much liked). Formula F3 is recommended as the best formula as it demonstrated acceptability comparable to the control while containing the highest calcium substitution level.