The purpose of this study is to determine the effect of service quality and price on customer satisfaction. This study uses an associative method with a quantitative approach. The research sample is the regular customers of the company PT. Indosteger Jaya used accidental sampling technique and obtained 80 respondents. Data analysis using multiple linear regression. The results of this study indicate that service quality has a positive and significant effect on customer satisfaction and price has a positive and significant effect on customer satisfaction (Y). Other results, that together service quality and price have a positive and significant effect on customer satisfaction. Keywords: Service Quality, Price, Consumer Satisfaction

This study aims to explore the value of Randai arts education and integrate it into problem-based learning models to improve the communication skills of prospective science teachers. The study is qualitative research with a descriptive approach focused on the ethnopedagogic field. Data on the exploration of the value of Randai arts education was obtained through interviews and observations. Prospective teacher communication skills data collected through observation during the learning process. Data were analyzed with descriptive statistics and the N-Gain Test. The results of the study revealed that: (1) the educational values contained in Randai art are: Barundiang (conferring), bakarajosamo (collaborating), kaba, garak malingka and drastic practice of kato nan ampek, (2) the value of Randai arts education is integrated in the problem-based learning models with characteristics: learning is built by the collaboration of Kaba (story) and drama in describing the problem, social interaction is built: barundiang, bakarajosamo, duduak basamo balapang-lapang and bulek kato deck mufakat, (3) The results of effectiveness tests show that integrating the value of artistic education Randai in the problem-based learning model is effective in improving the communication skills of prospective science teachers with an average N-Gain of 0.84 (high category). Thus it can be concluded that the value of Randai arts education can be integrated into the learning model as an effort to improve the communication skills of prospective science teachers.

The purpose of this study was to determine the effect of work stress on employee job satisfaction in one of the Directorate in the State Ministry. In this study used associative research methods using a quantitative approach. The population in this study were employees in one of the Directorate in the State Ministry, with a sample of 30 people with data collection techniques through questionnaires and literature study. Data analysis techniques using simple regression through SPSS version 23. The findings of this study that there is a significant influence between work stress on job satisfaction, where both variables have a strong and positive correlation. The magnitude of the effect of work stress on job satisfaction is 86.2%. Keywords: Job Stress, Job Satisfaction

Educational institutions are required to prepare competent and competitive pre-service teacher graduates who have skills according to the needs of the 21st century. This study aims to find the effect of blended Project-Based Learning (PjBL) integrated with 21st-century skills on higher-order thinking skills of students as pre-service biology teachers on immunology. This research is an experimental study with a mixed method, in which the qualitative observation data used a questionnaire with self-assessment and peer assessment methods supported by experimental data using the HOTS instrument analyzed quantitatively. The application of blended PjBL integrated with 21st-century skills used a quasi-experimental research method with a quantitative descriptive approach. Pre-service teachers in this study are still studying at educational institutions, especially teacher faculty, and categorized as pre-service teachers. The research sample was students taking the immunology course in the Biology Education Study Program. They were 57 students from IAIN Palangka Raya, 60 students from Universitas Palangka Raya, and 83 students from Universitas Negeri Malang. Student grouping based on the initial ability of HOTS is carried out in all groups from which the student sample is referred to as a cluster. The total sample of 200 people was then grouped into three groups based on their basic abilities, namely low-level class, medium-level class, and high-level class. The study results proved that the blended PjBL integrated with 21st-century skills significantly affected students' high-level thinking skills based on the paired sample test (Sig. 2-tailed 0.0000.05). The mean value in the experimental group (75.53) and the control group (56.35) strengthens the data significance of students' higher-order thinking skills based on the N-Gain value and the independent sample T-test. The findings of this study are that blended PjBL integrated with 21st-century skills can increase HOTS on indicators of evaluating (78.15) and creating (79.21). This blended learning integration can be used as an innovative learning model solution to increase pre-service biology teachers' higher-order thinking skills according to the demands of 21st-century skills.

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Introduction: Hyperglycemia mediates the production of excess free radicals and reduces endogenous antioxidant in type 2 diabetes mellitus (T2DM). Black soybean (BSB) is rich in antioxidant mainly from isoflavones, whereas the antioxidant of purple sweet potato (PSP) comes from high anthocyanin. The study aimed to evaluate the efficacy of BSB, PSP, and its combination on malondialdehyde (MDA), superoxide dismutase (SOD) concentrations, insulin and insulin receptor substrate-1 (IRS-1) expression in T2DM rats. Methods: T2DM induced by high-calorie diet for five weeks and then injected with a low dose of streptozotocin (30 mg/kg BW) intraperitoneally. The DM rats then treated with black soybean (DM + BSB), purple sweet potato (DM + PSP) and the combination of BSB and PSP 1:3, 2:2, 3:1 respectively (DM + C1-3). Treatments were given for thirty days. The effect of BSB, PSP and its combination evaluated by measuring SOD and MDA, necrosis in pancreas evaluated through hematoxylin-eosin (HE) and insulin and IRS-1 expression in pancreas through immunohistochemistry-fluorescence (IHC-F). Results: Our result indicated that there were no significant differences of BSB and the combination in decreasing MDA concentrations. The ratio of BSB and PSP combination of 2:2 increase SOD towards near normal, decrease necrosis, and improve insulin and IRS-1. Conclusion: The combination of BSB and PSP had the potential to improve insulin sensitivity through the increase of SOD, reduce necrosis, and improve insulin and IRS-1 expression. and Natural Sciences, Brawijaya University, Indonesia. Her research interest field is nutrigenomic. Currently, she has a research projects about garlic and their impact for health.

Overproduction of reactive oxygen species (ROS) will promote oxidative damage and can induce reproductive disorder. A therapeutic strategy to reduce effects of reproductive disorder is by maintaining the balance between ROS and antioxidants. Black soybean (BSB) contains phenolic compounds and has a greater antioxidant capacity than yellow soybean. Purple sweet potato (PSP) also has antioxidant capacity, due to the presence of anthocyanin, but is low in protein. The combination of BSB and PSP is expected to limit symptoms of reproductive disorder through decreasing ROS levels, enhancing testosterone production, and improve sperm quality. The results of this study indicate that the combination of PSP and BSB could restore blood glucose levels, improve seminiferous tubules diameter, decrease ROS production, and improve testosterone and sperm quality. A ratio of BSB to PSP of 2:2 and 3:1 were effective to improve symptoms of reproductive disorder in the type 2 diabetes mellitus (T2DM) rat model.

Background and Aim: Hyperglycemia increases advanced glycation end-product (AGE) production, and the activity of receptor for AGE (RAGE) in testis, which leads to testicular histopathological damage and infertility. This research investigated the effect of black soybean tempeh (BST), purple sweet potato (PSP), and its combination on AGE and RAGE expression and spermatozoa quality in streptozotocin (STZ)-induced diabetic rats. Materials and Methods: The rats were given high-fat diets for 5 weeks, then were injected intraperitoneally with multiple low doses of STZ (30 mg/kg body weight). Diabetes mellitus (DM) rats were divided into seven groups: DM, DM+glibenclamide, DM+BST, DM+PSP, and DM+combination of BST and PSP in ratio 1:3, 2:2, and 3:1 as C1, C2, and C3, respectively. The rats were treated for 30 days. Testicular AGE and RAGE expression and spermatozoa quality were measured. Results: The combination of BST and PSP significantly decreased AGE and RAGE expression in testicular organs and improved spermatozoa quality compared to the normal group. Conclusion: The combination of BST and PSP can be used as future alternatives to improve spermatozoa quality in DM patients.