Abstract:Laboratory testing plays a crucial role in supporting patient diagnosis and monitoring; therefore, accurate and precise results are essential through the implementation of quality control (QC). Potassium level testing is…
one of the key parameters requiring robust quality control because it is closely linked to patients’ clinical conditions. This study aims to analyze the implementation of QC in potassium level testing using the EasyLyte device at the Kasih Ibu Hospital Laboratory in Surakarta. The research method used was quantitative descriptive with an observational approach using secondary data from QC results for the period from September to November 2025. Analysis was performed by calculating the mean, standard deviation (SD), coefficient of variation (CV), and evaluating the Westgard rules. The results showed that the CV values for normal and abnormal controls were within acceptable limits (≤5%), and no violations of any Westgard rules were found. This indicates that the test results have good precision and there are no deviations, either random or systematic. Overall, the analytical system is in control and the instrument performance is stable. Thus, potassium testing using the EasyLyte instrument meets quality requirements and is suitable for use in laboratory services, while still requiring QC monitoring as well as routine maintenance and calibration.
Abstract:The low level of students’ scientific literacy indicates the need for learning approaches that can train scientific thinking process through inquiry activities. This study aims to compare the effectiveness of Guided Inquiry…
quiry Interactive Reinforcement learning with Guided Inquiry learning without Interactive Reinforcement on the topic of global warming in improving junior high school students’ scientific literacy. This research employed a quantitative approach with a quasi-experimental design conducted at a public junior high school in Sidoarjo Regency. This research subjects were students of class IX F as the experimental class and class IX B as the control class. Data were collected through scientific literacy test instrument, learning implementation observation sheets, and student response questionnaires. The test data were analyzed using the Mann-Whitney U test, effect size calculation, and N-Gain, while the data from the observation of learning implementation and student response questionnaires were analyzed descriptively using quantitative methods. The results showed that there was a significant difference in scientific literacy between the experimental class and the control class with an Asymp. Sig. (2-tailed) value of <0,001. The effect size calculation obtained a value of , categorized as a large effect, indicating a very strong influence. The improvement in scientific literacy in the experimental class was higher with an average N-Gain of 0,927 (high category) compared to the control class with 0,783 (high category). The level of scientific literacy also increased from level 2 in the pretest to level 6 in the experimental class and level 5 in the control class in the posttest. These results were supported by the implementation of learning in both classes, which was categorized as very good, and student responses that showed very good criteria with a higher percentage in the experimental class. Based on these findings, the Guided Inquiry Interactive Reinforcement learning model is proven to be more effective in improving junior high school students’ scientific literacy. This learning model is recommended to be applied to science topics that have contextual characteristics in order to enhance students’ scientific literacy.
Abstract:Inequality is a condition of inequity that results in a wide poverty gap in a country. In the future, challenges will arise due to inequality in wealth and prosperity, including in Indonesia. The Islamic economy is a system…
tem built on the principles of Islamic law and emphasises that the state is responsible for meeting the needs and welfare of its people. This paper uses qualitative methods and a retrospective approach to reveal how food issues are addressed in the construction of the Islamic economic system in Indonesia. Sharia-based food security is imbued with the main characteristics of Islamic economics, namely good and halal muamalah (transactions). Therefore, to achieve this, it is important to develop an Indonesian Islamic economic master plan based on the main indicator of economic independence in food self-sufficiency as an effort to realise national food security. Indonesia's Islamic economy is growing rapidly, and ideally, the construction of economic independence in the context of realising sharia-based food security should be a priority in the development of Indonesia's Islamic economic master plan based on the main indicator of economic independence in food self-sufficiency as an effort to realise national food security.
Abstract:• X is a company engaged in non-construction oil & gas services, namely water base mud (polyamine based) management services, supply of chemical materials, laboratory equipment, and drilling fluid engineers for oil and gas…
gas drilling. problems encountered when drilling through formations containing reactive clay and shale which can cause swelling clay problems and formation damage. This problem can be overcome with a high performance water based mud (HPWBM) mud system which has a super shale inhibition (polyamine) component. Mud which is formulated with the concept of total inhibitor, has inhibitory properties that can stabilize mineral clay and shale. The of this final assignment are to identify and study the high performance water base mud (HPWBM) mud system, then to know the ratio of good polyamines to be used in the KCL polymer polyamine mud formulation, then to look for the value of the physical properties of the KCL polymer polyamine mud formulation. to meet the oil company spec. This test begins with testing the mud properties of the KCl polymer polyamine mud sample from PT. Mitra Mandiri Saktitama before being exposed to Temperature and after being exposed to Temperature. Then analyze the changes in the value of the mud properties that have been made and the specifications of their physical properties, so that they can look for changes in the values of the mud properties of KCl polymer polyamine mud that fall within the specified range of mud properties. This test is carried out under the conditions of a room temperature of 78-300°F.
Abstract:The general objective of this research is to analyze problems in performance-based management within organizations, specifically related to teacher performance management in schools. Specifically, this research aims to analyze:…
nalyze: (1) To analyze and understand the performance of teachers in carrying out their duties and responsibilities in the teaching and learning process at schools. (2) To identify the factors influencing the performance of teachers in carrying out their duties and responsibilities in the teaching and learning process at State Senior High School (SMAN) 7 in Jayapura City. This research uses a qualitative approach with a case study research method that utilizes in-depth interviews as a data collection procedure. The research data includes primary and secondary data. Primary data were obtained through participant observation and interviews, while secondary data were obtained through documentation searches. The data analysis techniques used include data reduction, data presentation, and conclusion drawing.
The results of the study indicate that in general the implementation of teacher performance at State Senior High School (SMAN) 7 Jayapura City consisting of assessment indicator instruments: (a) Learning Planning, (b) Learning Implementation, (c) Learning Outcome Assessment, and (d) Personality and Attitude Development shows good results in the sense that the teachers in carrying out their main tasks and functions have been in accordance with the expected expectations. In addition, this study also revealed that even so there are still several things that need to be improved further such as completing learning facilities and infrastructure. The recommendation that can be given through this study is that schools need to provide increased teacher competence and capacity through training, seminars, technical guidance to improve teacher professionalism in the application of educational technology.
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: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:Hospital digital transformation requires human resource readiness and the quality of the Hospital Management Information System (SIMRS) for effective administrative services. In practice, the effectiveness of administrative…
ive services is still influenced by variations in employee competency and the quality of the system used. This study aims to analyze the influence of HR competency and SIMRS quality on the effectiveness of administrative services at MM Indramayu Hospital. This study uses a quantitative approach with a survey method. The study population included all non-medical support staff who use SIMRS, totaling 84 respondents, so a saturated sampling technique was used. Data were collected through a Likert scale questionnaire and analyzed using multiple linear regression with the help of SPSS. The analysis results show that HR competency has a positive and significant effect on the effectiveness of administrative services (t = 7.075; p < 0.05). SIMRS quality also has a positive and significant effect on the effectiveness of administrative services (t = 6.781; p < 0.05). Simultaneously, human resource competency and the quality of the Hospital Management Information System (MISRS) had a positive and significant effect on the effectiveness of administrative services (F = 28.257; p < 0.05) with a coefficient of determination (R²) of 0.411. This study concludes that improving the effectiveness of hospital administrative services requires synergy between adequate human resource competency and good quality of the SIMRS. Future research is recommended to examine other factors beyond the research model to gain a more comprehensive understanding
Abstract:This study aims to analyze the effect of price and product quality on fertilizer purchases at Am Jaya Tani Store in Rancakasumba Village, Solokan Jeruk District, Bandung Regency. This research is motivated by a decline in…
n the number of visitors and fertilizer purchases, which is presumed to be influenced by consumers’ perceptions of price and product quality. The research method used is a quantitative approach with descriptive and verificative analysis. Data were collected through questionnaires distributed to consumers of Am Jaya Tani Store, with sampling determined based on specific criteria. The data analysis techniques include validity and reliability tests, descriptive analysis, classical assumption tests, multiple linear regression analysis, coefficient of determination, and hypothesis testing using partial (t-test) and simultaneous (F-test) methods. The results indicate that descriptively, price, product quality, and fertilizer purchases are in the fairly good to good category. Partially, price has a significant effect on fertilizer purchases, and product quality also has a significant effect on fertilizer purchases. Simultaneously, price and product quality have a significant effect on fertilizer purchases at Am Jaya Tani Store. The findings of this study are expected to provide practical insights for the management of Am Jaya Tani Store in formulating pricing strategies and improving product quality to increase fertilizer purchases and enhance business competitiveness.
Abstract:Abstract The rapid growth of the Muslim fashion industry in Indonesia has intensified competition among Muslim fashion brands, particularly in the hijab segment. This intense competition requires companies to maintain high…
high product quality and implement effective promotional strategies to create consumer satisfaction. Rabbani, as one of Indonesia’s national Muslim fashion brands, faces challenges related to declining consumer perceptions of product quality and promotional effectiveness, which have an impact on consumer satisfaction, especially in Rancaekek District, Bandung Regency.
This study aims to examine and analyze the influence of product quality and promotion on consumer satisfaction among Rabbani hijab users in Rancaekek District, Bandung Regency, both partially and simultaneously. This research employs a quantitative approach using descriptive and verificative methods. The population of this study consists of consumers who use Rabbani hijabs in Rancaekek District, with a sample of 96 respondents selected through purposive sampling. Data were collected through questionnaires developed based on indicators of product quality, promotion, and consumer satisfaction.
The data analysis techniques used include descriptive analysis to describe the condition of each variable and multiple linear regression analysis to test the influence of product quality and promotion on consumer satisfaction. The analysis was also supported by classical assumption tests, coefficient of determination tests, and hypothesis testing through partial tests (t-test) and simultaneous tests (F-test).
The results of the study indicate that product quality and promotion have a positive and significant effect on consumer satisfaction, both partially and simultaneously. Good product quality and attractive, well-targeted promotional strategies are able to enhance consumer satisfaction with Rabbani products. Therefore, it is recommended that Rabbani place greater emphasis on maintaining consistent product quality and optimizing promotional strategies to improve consumer satisfaction and loyalty amid increasingly competitive conditions in the Muslim fashion industry.