Universitas Ahmad Dahlan Journal
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The Impact of Job Demands and Spirituality on Employee Engagement: Evidence from Christian Lecturers in Indonesia
Get PDFThis study investigated the influence of job demands and spirituality on employee engagement, focusing on Christian lecturers in Indonesia. The research is both timely and significant, as it offers a fresh perspective on the typically negative association between job demands and employee engagement. Contrary to conventional assumptions, the findings reveal that job demands can, in fact, enhance work engagement among Christian lecturers, particularly when accompanied by a strong sense of spirituality. Employing a quantitative correlational design, data were collected from 200 lecturers selected through purposive sampling. Employee engagement was measured using the Utrecht Work Engagement Scale, while job demands and spirituality were assessed using established and validated instruments. Data analysis was conducted using Structural Equation Modeling with Partial Least Squares (SEM-PLS). The results demonstrated that job demands had a positive effect on employee engagement, indicating that greater work demands were linked to higher levels of engagement. This finding offers a novel contribution, as it deviates from much of the prior literature. In alignment with the Job Demands-Resources (JD-R) model, the study suggests that under certain conditions, job demands can be reinterpreted as challenges that stimulate motivation and foster engagement, particularly when supported by sufficient job resources. Furthermore, spirituality emerged as a significant predictor of employee engagement, underscoring the importance of meaning and purpose in strengthening lecturers’ dedication to their work. Overall, these findings affirm the JD-R model and highlight the need to balance job demands with both organizational and personal resources, including spiritual well-being. Future studies are encouraged to explore these dynamics across different religious contexts and consider other external factors influencing employee engagement
Studi Komparatif Model ARIMA, ANN, dan Hybrid ARIMA-ANN untuk Peramalan Laju Inflasi di Indonesia
Get PDFModel ARIMA merupakan metode populer dalam peramalan data deret waktu. Namun demikian, model ini memiliki keterbatasan dalam mengenali pola nonlinier yang dapat menyebabkan peningkatan kesalahan peramalan. Sebagai solusinya, Artificial Neural Network (ANN) yang mampu memotret pola nonlinier dapat diaplikasikan. Untuk menggabungkan keunggulan dari kedua model, dikembangkan metode Hybrid ARIMA-ANN. Penelitian ini membandingkan performa model ARIMA, ANN, dan Hybrid ARIMA-ANN pada kajian peramalan laju inflasi di Indonesia. Hasil penelitian menunjukkan bahwa pada data training, model Hybrid ARIMA-ANN memberikan performa terbaik dengan nilai MAPE sebesar 18,73% dan MASE sebesar 1,86. Pada data testing, model Hybrid menunjukkan peningkatan akurasi dengan nilai MAPE sebesar 17,95% dan MASE sebesar 1,16. Hasil ini mendukung penerapan metode Hybrid ARIMA-ANN sebagai pendekatan yang lebih andal dan efektif untuk peramalan deret waktu yang memuat pola linier dan nonlinier secara bersamaan
Profile of emotional intelligence of junior high school students
Get PDFAchieving emotional independence is one of the developmental tasks of adolescents. Previous studies have found differences in levels of emotional intelligence among adolescents. Initial studies show that the emotional intelligence of junior high school students is not optimal, especially in regulating emotions. The existence of gaps between various literature studies, gaps between literature studies and field studies, and the unavailability of research on the level of emotional intelligence, especially among students at one of the junior high schools in Denpasar, raises questions from researchers regarding the actual level of emotional intelligence of students at one of the junior high schools in Denpasar. The purpose of this study was to determine the level of emotional intelligence in students at a junior high school in Denpasar. Emotional intelligence is measured using the Emotional Intelligence Scale. The research method is descriptive quantitative. The sample was students at one of the junior high schools in Denpasar. A total of 387 respondents were determined through simple random sampling technique. The results showed that 3.87% of respondents were in the very low category, 26.87% in the low category, 40.83% in the medium category, 20.16% in the high category, and 8.27% in the very high category. The conclusion of this study is that the emotional intelligence of junior high school students has not developed optimally. The results of the study can be a reference for further researchers regarding psychological interventions to improve respondents' emotional intelligence
Impact of Image Quality Enhancement Using Homomorphic Filtering on the Performance of Deep Learning-Based Facial Emotion Recognition Systems
Get PDFFacial emotion recognition technology is crucial in understanding human expressions from images or videos by analyzing distinct facial features. A common challenge in this technology is accurately detecting a person's facial expression, which can be hindered by unclear facial lines, often due to poor lighting conditions. To address these challenges, it is essential to improve image quality. This study investigates how enhancing image quality through homomorphic filtering and sharpening techniques can boost the accuracy and performance of deep learning-based facial emotion recognition systems. Improved image quality allows the classification model to focus on relevant expression features better. Therefore, this research contributes to in facilitating more intuitive and responsive communications by enabling system to interpret and respond to human emotions effectively. The testing used three different architectures: MobileNet, InceptionV3, and DenseNet121. Evaluasi kinerja dilakukan menggunakan metrik akurasi, presisi, recall, dan F1-score. Experimental results indicated that image enhancement positively impacts the accuracy of the facial emotion recognition system. Specifically, the average accuracy increased by 1-2% for the MobileNet architecture, by 5-7% for InceptionV3, and by 1-3% for DenseNet121
Validation of flourishing scale PERMA on prospective student educators
Get PDFThis study aims to validate the growth scale in the context of educational students. This scale is based on Seligman's PERMA theory, which includes five dimensions: positive emotion, engagement, relationships, meaning, and achievement. The research method used a survey involving 305 students of the education study program aged 18–25 who were selected using the non-probability sampling method with the convenience sampling type. Data were analyzed using the Rasch Model to determine the nature of the psychometric development scale. The analysis showed a 36.1% unidimensionality, indicating a good ability to measure the development construct. As many as 35 of the 55 items were declared valid after item fit and demographic bias analysis. The reliability value is high, with a personal reliability coefficient of 0.87 and an item reliability coefficient of 0.99. Internal consistency is also strong, with a Cronbach's Alpha of 0.90. Wright Map analysis shows that the level of item difficulty is below the student's ability, so the scale is easy to apply. This study confirms that the growth scale is considered relevant to measure the growth of prospective educator students. Further development is recommended to respond to cross-cultural issues so that the scale makes more sense in the context of higher education
The Effect of Methanol and Ethyl Acetate Extracts of Kirinyuh Stem (Eupatorium odoratum L.) on Antifungal Activity of Fusarium oxysporum:
Get PDFFusarium oxysporum is a fungus that has a negative role, namely causing moler disease or Fusarium wilt in shallot plants. The purpose of this study was to determine the effect of methanol and ethyl acetate extracts of kirinyuh stem (Eupatorium odoratum L.) on the antifungal activity of Fusarium oxysporum. This study used a complete randomized design (CRD) with 8 treatments, namely negative control, positive control, concentrations of 10%, 20%, 40%, 60%, 80%, 100% with 3 replicates. The activity test was conducted using the Kirby Bauer method. Data from the study were processed by analysis of variance (one way anova) and continued by Duncan's test. The results showed that methanol and ethyl acetate extracts of kirinyuh stems affect the antifungal activity of Fusarium oxysporum. Ethyl acetate extract is more active to inhibit Fusarium oxysporum fungi compared to methanol extract. The highest inhibition zone diameter in the methanol extract was at 100% concentration which was 7.5 mm and the lowest at 10% concentration which was 2.67 mm. The highest inhibition zone diameter in the ethyl acetate extract was at 100% concentration which was 12.33 mm and the lowest at 10% concentration which was 4.67 mm
Perception of the Influence of Practicum Activities on the Learning Outcomes of Biology Education Students at Ahmad Dahlan University
Get PDFThis study aims to analyze students' perceptions of practicum activities in relation to their learning outcomes. The method applied is descriptive qualitative analysis, with data collection techniques using questionnaires given to students undergoing practicum at Ahmad Dahlan University. The data obtained was analyzed by thematic analysis methods to find the main themes related to students' experiences and views. The results of this study show that students generally believe that practicum activities have a positive impact on their understanding of theoretical concepts and practical skills they get in class. However, some students also said that there were difficulties related to limited time and inadequate facilities. In addition, support from practicum assistants and direct interaction with practicum tools or instruments are key factors in the success of PR activities
Analysis of Biology Learning Difficulties in Virus Material for Grade X Students at Muhammadiyah 3 Yogyakarta
Get PDFLearning is a basic process of human development. By learning, humans make changes so that their behavior develops. Learning is not just an experience, but learning is a process and not a result. In learning activities at school, educators are faced with a number of very diverse student characteristics. The learning difficulties found at SMA Muhammadiyah 3 Yogyakarta were found to be the average class score in biology subjects was still below the KKM. The purpose of this study was to determine the internal and external factors that cause students to experience learning difficulties and to determine the level of difficulty in learning biology in understanding virus material. This type of research is descriptive quantitative. The population used in this study was 152 with a sample of 79 students. This research was conducted on June 6-7, 2024. This study used a cluster sampling technique because the data sources used were very broad. Data collection techniques used questionnaires and interviews. Data collection instruments used questionnaires and interview guidelines. The data analysis technique for this study used descriptive quantitative analysis.The results of the study showed that the internal factors that caused students in class X (E2, E4 and E4) to have difficulty learning biology on the virus material were physiological factors in the moderate category, with a percentage of 48%, 49.11% and 50%. External factors that caused students in class X-E2 to have difficulty learning biology on the virus material were school factors with a percentage of 74% in the high category, for class X-E4 were school factors with a percentage of 75% in the high category and for class X-E5 were family factors with a percentage of 76.78% in the high category. The biology sub-materials that were considered difficult on viruses were types of viruses and the life cycle of viruse
Utilization of Interactive Multimedia in Science Learning at Junior High School MTs N 7
Get PDFScience learning at junior high school level plays an important role in providing students with a good understanding of complex biological concepts. However, conventional learning approaches limited to the use of textbooks and lectures are often less interesting for students and less effective in facilitating their learning. This research aims to explain how the utilization of interactive multimedia can improve science learning at MTs N 7 Sleman. In addition, this study also discusses the role of interactive multimedia in facilitating collaborative learning in the classroom along with the tools applied. The type of research used in this study is qualitative with a descriptive approach. The technique used in data collection uses semi-structured interview techniques conducted virtually using the Google meet platform. By applying interactive multimedia in Biology learning at MTs N 7 Sleman, it is expected that students can be more involved, enthusiastic, and gain a better understanding of Biology concepts. This will help improve the quality of education at MTs N 7 Sleman and prepare students to face the challenges of science and technology in the future
PENINGKATAN LITERASI MATEMATIS SISWA SMP MELALUI PENERAPAN PROBLEM BASED LEARNING DAN TEACHING AT THE RIGHT LEVEL
Get PDFProblem Based Learning (PBL) merupakan model pembelajaran yang menyajikan suatu permasalahan kontekstual sehingga peserta didik dapat mengontruksi pengetahuan dan pemahamannya sendiri. Penelitian ini bertujuan untuk mendeskripsikan model pembelajaran Problem Based Learning (PBL) dengan pendekatan TaRL untuk meningkatkan kemampuan literasi matematika pada materi bilangan bulat kelas VII. Metode penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam 2 siklus pembelajaran. Tindakan yang dilakukan yaitu menerapkan pembelajaran PBL secara berkelompok. Satu kelas dibagi menjadi 8 kelompok berdasarkan hasil asesmen diagnostik terkait penguasaan materi prasyarat, kelompok 1-2 dengan kemampuan tinggi menyelesaikan masalah secara mandiri, kelompok 3-6 dengan kemampuan sedang menyelesaikan permasalahan secara mandiri dan boleh bertanya kepada pendidik ketika menemui kesulitan. Kelompok 7-8 dengan kemampuan rendah, menyelesaikan permasalahan dengan bimbingan dan scaffolding dari pendidik. Hasil penelitian pada 40 peserta didik menunjukkan pada pra siklus kemampuan literasi matematika peserta didik masih dominan berada pada tingkat rendah-sedang dengan rata – rata hasil tes pra siklus 46,75 , siklus I sebesar 69,33 , siklus II sebesar 87,35. Berdasarkan hasil rata – rata tersebut dapat disimpulkan bahwa penerapan model pembelajaran PBL dengan pendekatan TaRL dapat meningkatkan kemampuan literasi matematika pada materi bilangan bulat kelas VII