Abstract:Calculus of Multiple Variables is a core course in the Mathematics Education study program and plays a crucial role in developing students advanced mathematical thinking skills. Success in this course relies heavily on mastery…
astery of the prerequisite material, particularly the concepts of derivatives and integrals of functions of one variable. Therefore, understanding mathematical concepts is a fundamental aspect that determines students’ ability to understand the interrelationships between topics and solve problems systematically and logically. This study aims to describe students' conceptual understanding of multivariable calculus. The approach used is a descriptive approach with a purposive sampling technique, namely selecting research subjects based on certain criteria in the form of the highest and lowest levels of mathematical concept understanding. The results of the study indicate that students conceptual understanding varies across different materials. In the partial derivative material, students were not yet fully able to accurately represent the solution concept, especially in applying the rules for derivatives of exponential functions, so the results obtained did not conform to mathematical principles. These errors are conceptual in nature and indicate a weak grasp of certain basic concepts. However, in the material on derivatives of products of two functions and triple integrals, students demonstrated goog conceptual understanding. They were able to select, use, and apply solution procedures appropriately and systematically. This finding indicates that despite weaknesses in certain concepts, students still possess quite good procedural and conceptual abilities in the context of other problems in polynomial calculus.
Abstract:Project-Based Learning (PjBL) has emerged as an innovative educational approach that bridges the gap between theoretical knowledge and practical application. This study explores the impact of PjBL on students' learning experiences,…
xperiences, particularly in real-world engagement, collaborative teamwork, social interaction, and problem-solving skills. Findings from interviews with multiple informants highlight that PjBL provides students with new experiences beyond the traditional classroom setting, allowing them to engage directly with the school environment. Through collaborative projects, students develop interpersonal skills, enhance communication, and strengthen teamwork. Additionally, PjBL fosters adaptability and problem-solving abilities, equipping students with essential 21st-century competencies. These results align with the theoretical perspectives of Krajcik & Blumenfeld (2006) and Blumenfeld et al. (1991), which emphasize the significance of experiential learning and social interaction in deepening students’ understanding. Overall, PjBL offers a transformative learning experience by making education more meaningful, engaging, and relevant to real-world challenges
Abstract:This study aims to determine the effect of price and advertising on the consumptive behavior of students at Bandung International Women’s University in the TikTok Shop marketplace. The growing trend of consumptive behavior…
vior among students is influenced by easy access to social media and digital marketing strategies such as interactive advertisements and discount offers. This research uses a quantitative approach with descriptive and verificative methods. The sample consists of 95 respondents, students of the Business Administration Study Program (2021–2024), selected through proportionate stratified random sampling. Data were collected using questionnaires and analyzed using multiple linear regression through SPSS. The results show that (1) price has a positive and significant effect on students’ consumptive behavior, (2) advertising also has a positive and significant effect, and (3) simultaneously, price and advertising significantly affect consumptive behavior among TikTok Shop users. Therefore, competitive pricing and creative advertising strategies on TikTok Shop have been proven to increase impulsive buying tendencies among students. This research is expected to serve as a reference for digital business practitioners in designing more ethical and educational marketing strategies for young consumers.
Abstract:Food waste in buffet services in the tourism sector is a strategic issue that has significant impacts on environmental, economic, and social aspects, especially in the context of efforts to achieve sustainable tourism. This…
his study aims to analyze in-depth strategies for preventing food waste in buffet services by highlighting operational practices, guest behavior, and managerial policies implemented in the field. The research approach uses qualitative methods with data collection techniques through direct observation, in-depth interviews with hotel managers and staff, and documentation studies related to the food production and serving processes. The research results indicate that the most effective food waste prevention strategies include ongoing guest education on responsible consumption behavior, the implementation of flexible and adaptive portion sizes tailored to guest needs, and staff capacity building through training on food management and waste mitigation. Furthermore, strengthening coordination between the kitchen, restaurant service, and management is also crucial in ensuring optimal strategy implementation.
These findings provide practical and academic contributions to the tourism industry by offering recommendations that can serve as a basis for developing more efficient and sustainable policies and operational practices, thereby reducing the negative impact of food waste while improving the quality of buffet service.
Abstract:This study specifically projects output and predicts economic growth, investment needs, and additional labor requirements sectorally, using labor and output data (GDP by business field at constant prices) for the period…
2001-2019. The analysis method used is labor projection based on the output approach, namely the Incremental Labor Output Ratio (ILOR). The results of the study show that (1) the increase in output in the agricultural sector does not have an impact on the expansion of labor absorption in the sector, but the conditions contrast with the increase in output in the public services, mining and trade sectors which will have an impact on the expansion of labor (2) Additional labor in the agricultural sector does not provide optimal results or additional labor in the agricultural sector and has an impact on decreasing output in the future (3) Additional labor in the mining sector will result in high output in the future.
Abstract:This study aims to determine the effect of soft skills and hard skills on the work readiness of 12th-grade students at SMK Mahardika Batujajar. This study used a quantitative approach with a survey method. The population…
in this study was all 467 12th-grade students at SMK Mahardika Batujajar. The sample size was determined using the Chocran formula with a 10% error rate, resulting in a sample size of 86 respondents. The sampling technique used was simple random sampling. Data were collected through a Likert-scale questionnaire and analyzed using multiple linear regression analysis with the help of SPSS version 24.
The results showed that soft skills partially had a positive and significant effect on students' work readiness, with a calculated t-value of 2.493, which is greater than the t-table of 1.989, and a significance level of 0.015, which is less than 0.05. Hard skills also have a positive and significant effect on students' work readiness, with a calculated t value of 6.597 which is greater than the t table of 1.989 and a significance level of 0.000 which is smaller than 0.05. Simultaneously, soft skills and hard skills have a significant effect on students' work readiness, with a calculated F value of 144.949 which is greater than the F table of 3.11 and a significance level of 0.000 which is smaller than 0.05. The coefficient of determination value of 0.772 indicates that 77.2% of the variation in students' work readiness can be explained by soft skills and hard skills, while the remaining 22.8% is influenced by other factors outside this study.
Abstract:The Aika Gallery store on the Shopee marketplace is the perfect destination for parents seeking children's clothing with guaranteed quality and attractive designs. The objectives of this study were (1) to determine affiliate…
iate marketing for children's clothing products at the Aika Gallery store on the Shopee marketplace, (2) to determine user reviews of children's clothing products at the Aika Gallery store on the Shopee marketplace, (3) to determine purchasing decisions for children's clothing products at the Aika Gallery store on the Shopee marketplace, (4) to determine the influence of affiliate marketing on purchasing decisions for children's clothing products at the Aika Gallery store on the Shopee marketplace, (5) to determine the influence of users on purchasing decisions for children's clothing products at the Aika Gallery store on the Shopee marketplace, and (6) to determine the simultaneous influence of affiliate marketing and user reviews on purchasing decisions for children's clothing products at the Aika Gallery store on the Shopee marketplace. This study used a descriptive quantitative approach with 70 respondents. The results of this study are: (1) Consumer responses regarding Affiliate Marketing are in the good category, (2) Consumer responses regarding User Reviews are in the good category, (3) Consumer responses regarding Purchasing Decisions are in the good category, (4) Affiliate Marketing has a significant influence on Purchase Decision Satisfaction (5) User Reviews have a significant influence on Purchase Decision Satisfaction, and (6) Affiliate Marketing and User Reviews have a significant influence on Purchase Decisions.
Abstract:The identification of error types based on Newman’s Procedure includes reading, comprehension, transformation, process skills, and answer encoding. The objective of this study is to describe the analysis of students’ errors…
errors in solving mathematical logic problems based on Newman’s Procedure. This research adopts a descriptive qualitative approach involving first year students enrolled in the mathematical logic course within the Information Systems program. Data were collected through a diagnostic test administered to three students representing different levels of academic ability: one low ability student, one moderate ability student, and one high ability student. Students’ ability levels were measured based on tests covering compound propositional logic and logical operations. Data analysis was conducted by classifying errors at each stage of Newman’s Procedure, tracing the underlying factors contributing to these errors, and relating them to students’ logical reasoning abilities. Accordingly, the research method employed in this study is descriptive qualitative research. The resulting error classifications were subsequently used by lecturers as a basis for recommending improvements in instructional strategies. The results indicate that students with low ability made errors across all stages from K1 to K5, students with moderate ability tended to make errors at the case exploration and process skills stages, while students with high ability were able to complete all stages systematically and consistently. These findings confirm that the Newman Procedure is effective in mapping students’ thinking errors. Therefore, the implementation of differentiated learning strategies that emphasize problem comprehension, case exploration, and logical verification is recommended to enhance students’ reasoning abilities
Abstract:Enterobius vermicularis is a small intestinal nematode that causes enterobiasis infection. This infection is most commonly found among elementary school–aged children. The aim of this study was to describe the microscopic…
pic findings of Enterobius vermicularis eggs among first- and second-grade students of SDN 12 Langkai, Palangka Raya City, in 2025. This research employed a descriptive approach, with specimen collection carried out using the anal swab technique. Samples were examined microscopically after staining with 5% eosin solution, and observations were performed under a light microscope using 10× and 40× objective lenses. The results showed that no eggs or larvae of Enterobius vermicularis were detected in any of the samples, indicating that all samples were negative. Based on these findings, it can be concluded that no cases of enterobiasis infection were found among the first- and second-grade students of SDN 12 Langkai, Palangka Raya City.
Abstract:Early HIV detection is a key strategy in control HIV/AIDS epidemic in Indonesia. Research This aim For analyze effectiveness of the Rapid Diagnostic Test (RDT) as method detection early HIV in the workplace Marina Permai…
Community Health Center 2025. Research use design descriptive with total sample of 58 people who did HIV test . Examination done use Three immunochromatographic RDT strategies : ViroCheck ® HIV 1/2, Arkan Medical One Step Anti-HIV (1/2), and d3TEKS1 HIV 1/2 Antibody Rapid Test. Research results show that Of the 58 respondents , 5 people (9%) indicated results reactive and 53 people (91%) non- reactive . Based on characteristics demographics , cases reactive found in 3 women (5%), 2 men (3%), with distribution largest in the group aged 18–59 years (4 people, 7%) and 1 case (2%) in the group aged 0–5 years . This study conclude that immunochromatographic RDT effective as tool detection early HIV at the level service primary health with sensitivity and specificity high . Findings This support use of RDT as screening beginning in HIV prevention and control programs in facilities health community .
Keywords: Early HIV Detection, Rapid Diagnostic Test, Marina Permai Health Center