Daftar Jurnal Penerbit Universitas Negeri Semarang
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Development of Android-Based Mobile Learning Media on Cell Material to Improve Students’ Learning Outcomes
Full text linkThe widespread use of Android-based devices enables the application of mobile learning as a flexible and effective learning method. The development of the Society 5.0 concept emphasizes that humans are the center of innovation in utilizing technological advances born from the Industrial Revolution 4.0 era. The purpose of this study is to develop Android-based learning media on the structure and function of cell organelles, analyze the effectiveness of the media in improving students\u27 cognitive learning outcomes, and determine the responses of teachers and students to the application of Android-based mobile learning media on the structure and function of cell organelles. The research method Research and Development (R&D) with a modified 4-D model design (Define, Design, Development, and Disseminate). This study involved 42 students from grade XI and biology teachers. The analysis was carried out based on validation tests by experts, analysis of student and teacher questionnaire responses, and analysis of cognitive learning outcomes with N-gain. Teacher and student responses were very good to the use of learning media Structure and Function of Cell Organelles with a value of 96% and 92%. The N-gain analysis for improving cognitive learning outcomes was found to be effective with a value of 0.78 and an effectiveness of 77.95%. The development of this Android-based learning media on the Structure and Function of Cell Organelles received a very positive response from teachers and students, and was found to be feasible and effective in improving students\u27 cognitive learning outcomes
Design of a Chemistry Learning on Android Media (CHEMONDRO) Assisted by Articulate Storyline to Improve Students’ Motivation and Learning Outcomes in Green Chemistry
Full text linkThis study aims to design a creative and innovative Android-based chemistry learning media, Chemistry Learning on Android (CHEMONDRO), supported by Articulate Storyline to enhance students’ motivation and learning outcomes, particularly in the topic of green chemistry. The research employs the Research and Development (R&D) method using the Four-D (4D) development model, which was simplified into Three-D (3D): Define, Design, and Develop. The feasibility, effectiveness, and user responses toward the media were the main considerations in this study. CHEMONDRO was validated by experts in both content and media, with results showing a material expert validation score of 97.66%, media expert validation of 97.62%, and teacher validation of 92.86%, indicating a very high level of feasibility. The learning outcome improvement was analyzed using the N-Gain test, which resulted in an average N-Gain of 0.70 and 0.79, categorized as moderate and high improvement. In addition, affective and psychomotor domains of the students showed very good results. Readability testing in a small group reached 95.10%, while the implementation feasibility scored 93.89%. Large-scale student responses showed a very positive result of 94.46%. Based on these findings, CHEMONDRO is considered highly feasible, effective, and well-received as a media tool to support chemistry learning and improve student engagement and outcomes, particularly in green chemistry material
Drivers of Employee Performance: The Role of Institutional Support in Elevating Career Growth
Full text linkThis study aims to analyze the relationship between scientific publication productivity and the academic promotion of lecturers. Scientific publication productivity is a crucial indicator of academic performance, making it important to explore the factors that influence lecturers’ publication productivity to design more effective strategies for improving the quality and quantity of publications. This quantitative study involved 112 lecturers (15% of those promoted in the last five years), using surveys and secondary institutional data. Regression analysis was used to examine the effect of scientific publication productivity on academic promotion, and the data were analyzed using descriptive and statistical methods. The results show that institutional support is the strongest factor influencing academic promotion. Institutional support, research experience, and publication quality significantly affect scientific publication productivity. Moreover, publication productivity mediates the relationship between institutional support and publication quality with academic promotion. These findings imply that improving academic promotion at the local level requires two key strategies: strengthening institutional support and enhancing scientific publication productivity
Enhancing Consumer Loyalty through Product Quality and Word of Mouth in MSME\u27s
Full text linkMSMEs contribute to labor absorption and drive local economic growth. This study aims to analyze the role of product quality and word of mouth on consumer loyalty through consumer satisfaction as an intervening variable among MSME product users in Semarang City. This research is motivated by the important role of MSMEs in employment and their contribution to driving local economic growth. Therefore, understanding the factors influencing consumer loyalty is crucial for maintaining the sustainability of MSME businesses. The approach used in this study is quantitative with an explanatory research method. Data analysis was conducted using SEM (Structural Equation Modeling) based on PLS (Partial Least Squares) to examine the relationships between the variables studied. The study population was MSME product users in Semarang City. The sampling technique used was purposive sampling with 200 respondents. Data collection was conducted through questionnaires. The results show that product quality has a positive and significant effect on consumer loyalty. Word of mouth has a positive and significant effect on consumer loyalty. Consumer satisfaction has a positive and significant effect on consumer loyalty. Product quality has a positive and significant effect on consumer satisfaction. Word of mouth has a positive and significant effect on consumer satisfaction. Furthermore, customer satisfaction has been shown to mediate the influence of product quality and word of mouth on customer loyalty. The implications of this research indicate that improving product quality and optimizing word of mouth, both directly and through increased customer satisfaction, can be an effective strategy for MSMEs to build and maintain customer loyalty in Semarang City. These findings are expected to provide a basis for MSMEs and policymakers to design programs to improve product quality and strengthen word-of-mouth promotion in a more targeted manner
Rancang Bangun Campus Shuttle Tracker Universitas Negeri Semarang Berbasis Modul GPS Smartphone
Full text linkUniversitas Negeri Semarang menerapkan konservasi di lingkungan kampus Sekaran melalui layanan Campus Shuttle yang telah beroperasi sejak tahun 2022. Namun, masih terdapat beberapa keterbatasan mengenai informasi jadwal operasional, lokasi shuttle, dan keterbatasan unit menjadi kendala yang menyebabkan fasilitas ini kurang diandalkan. Penelitian ini bertujuan memberikan solusi inovatif melalui pengembangan aplikasi Campus Shuttle Tracker berbasis web apps untuk meningkatkan akses layanan shuttle. Pengembangan aplikasi ini menggunakan teknologi GPS pada modul smartphone, diintegrasikan dengan framework Laravel berbasis Model-View-Controller (MVC). Proses penelitian berupa studi literatur, survei lapangan terhadap pengguna dan driver shuttle, serta analisis kebutuhan pengguna. Campus Shuttle Tracker menyajikan fitur utama yang disajikan berupa pelacakan posisi shuttle secara real-time, informasi drop-off, status ketersediaan kursi, notifikasi, dan pelaporan oleh pengguna. Penelitian ini menerapkan pengujian menggunakan metode ISO 9126 menunjukkan hasil sangat baik, dengan skor 91,6% pada aspek functionally, reliability, usability, efficiency, dan portability. Prototype berfungsi secara optimal pada lingkungan lokal, meskipun diperlukan penyempurnaan algoritma pelacakan dan konfigurasi sistem untuk penerapan di lingkungan produksi
Correlation Of Nutritional Status, Physical Activity, Protein, and Magnesium Intake with Muscle Endurance Among College Students
Full text linkMuscular endurance is included in the components of fitness related to health. Good muscular endurance is important for college students to reduce muscle fatigue so they can do activities including studying longer. The purpose of this study was to analyze the correlation between nutritional status, protein intake, magnesium, and physical activity with muscle endurance. This study is a quantitative study using a cross-sectional design. The sampling technique used was purposive sampling concerning predetermined criteria and a sample of 99 students in Jakarta was obtained. The instruments in this study used a weighed food record, a physical activity recall form, and a push-up and wall squat muscle endurance test form. The Pearson and Spearman correlation tests analyzed the relationship between independent and dependent variables. Most of the respondents had poor and very poor muscle endurance both based on push-ups (96%) and wall squat tests (79,8%). The majority of respondents had good nutritional status (57.6%), insufficient protein intake (56.6%), insufficient magnesium intake (98%), and light physical activity level (93.9%). Nutritional status, protein intake, magnesium, and physical activity were not significantly correlated with muscle endurance in college students (p-value> 0.05)
The Effect of Active and Passive Cooling Down Exercises on Reducing The Pulse Heart Rate of Female Volleyball Athletes
Full text linkIntroduction: A decrease in pulse rate is the most important part that can be measured to support the effectiveness of the training program. In volleyball, which requires a long game time, coaches must also know the process of effective and efficient cooling exercises that can be used to lower the pulse rate. Cool-down training is one way to reduce the pulse rate. Objectives: This study aims to measure the effects of active and passive cooling exercises on physiological responses, one of which is pulse rate. Method: The method used in this study is a quantitative method with an experimental approach with a research design of a two-group pre-test post-test design. The population in this study was Female Volleyball Athletes of Club Bahana Bina Pakuan Bandung City, with an age group of 15-17 years, many of 16 people. The sampling technique used was total sampling, with a total population of 16 people who became the research sample. The instrument used is a Polar H10 device to measure the pulse rate that drops when given active and passive cooling exercises. Result: The results of this study indicate that a more significant decrease in pulse rate is achieved when using active cooling exercises; the effectiveness obtained is 5.70%, whereas passive cooling exercises result in a significant decrease by 3.68%. Conclusion: This study provides recommendations for coaches to continue to see the decline that occurs when given a cooling exercise program. It is also expected that coaches have polar devices to monitor the condition of athletes
Resting Heart Rate Responses After Three Months of Intensive Exercise
Full text linkIntroduction: Resting heart rate (RHR) is a key indicator of cardiovascular adaptation in athletes, reflecting physiological responses to intensive training. While decreased RHR typically signifies improved cardiovascular efficiency, variability in adaptation based on factors like training duration, intensity, and individual characteristics remains understudied in young athletes. Objectives: This study aims to analyze the resting heart rate (RHR) response in young athletes after participating in an intensive 15-week training program. Method: The study uses a quasi-experimental design with a pre-test and post-test approach. The sample consists of 15 male and female athletes who are members of the National Sports Design Program (DBON). Physiological variables were measured using digital devices: a heart rate monitor for RHR, a pulse oximeter for oxygen saturation (SpO₂), and a digital scale and height measurer to calculate body mass index (BMI). Measurements were taken before and after the training program. Data were analyzed descriptively (Mean ± SD), and statistical tests were performed using SPSS software. Normality was tested using the Shapiro-Wilk test, and homogeneity of variance was tested using Levene’s test. Paired t-tests were used to determine differences between pre- and post-values, while Pearson correlation tests were used to examine relationships between variables, with significance set at p < 0.05. Result: The results showed no significant changes in RHR, SpO₂, or BMI, and no significant relationship was found between RHR and SpO₂. Conclusion: This study recommends long-term physiological monitoring and the use of additional parameters to assess exercise adaptation more comprehensively
Survival Analysis of the Risk Factors Affecting the Survival Time of Diabetic Patients
Full text linkThis study aimed to analyze the risk factors that affect the survival time of diabetic patients. It used the diabetes health indicators dataset (2015) collected from the American population by the “Centers for Disease Control and Prevention,” United States, through the “Behavioral Risk Factor Surveillance System” in 2015. The dataset comprised 70,692 responses, among which every 320th sample was selected to get the estimated sample size of 221 using the systematic sampling method. The collected data was analyzed through a statistical package for the social sciences (SPSS) software 27.0. The outcomes found that risk factors such as age, high cholesterol, smoking, heavy alcohol consumption, physical activity, high blood pressure, heart disease or attack, general health, serious difficulty in walking or climbing stairs, and stroke were significantly associated with the risk of diabetes. General health was a significant predictor of the risk of diabetes. The estimated survival probability of diabetic patients decreases as their age progresses due to risk factors such as smoking, heavy alcohol consumption, stroke, high blood pressure, and heart disease or attack. Also, it decreases with their age if those patients are physically inactive. These findings highlight that more active strategies are required to comprehensively control risk factors to reduce the burden of diabetes among the general inhabitants.
Development of a Problem-Based Learning (PBL) Ethnoscience E-Module on the Biodiversity of Herbal Plants to Enhance Junior High School Students Critical Thinking and Environmental Literacy
Full text linkThis study aims to develop and validate an ethnoscience-based Problem-Based Learning (PBL) e-module on the biodiversity of herbal plants to enhance junior high school students’ critical thinking and environmental literacy. The research used a modified 4D development model (Define, Design, Develop, Disseminate) involving content analysis, expert validation, and practicality testing. The e-module integrates local cultural knowledge with science learning through contextual material and interactive problem-solving activities. Validation was conducted by subject matter and media experts, while practicality was tested by one science teacher and 25 students. Results show the e-module received a content validity score of 90.34% (very valid) and a media validity score of 78.62% (valid). The characteristics assessment by three experts yielded an overall score of 92.69%, categorized as highly suitable for educational use. Practicality scores from teacher and student evaluations were 92.88% and 91.42%, respectively, indicating that the module is easy to use, relevant, and engaging. The findings conclude that the e-module is pedagogically appropriate, practical, and effectively integrates local wisdom into science learning. It supports the development of students’ critical thinking and environmental awareness and can be used as an innovative instructional resource in junior high school science education