Universitas Ahmad Dahlan Journal
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Assisting Children in Facing Digital Risks: The Role of Values and Communication
Full text linkThe rapid development of the digital world presents numerous potential risks, particularly for children. Compared to other age groups, children are at a heightened risk of exposure to inappropriate content, cyberbullying, and privacy violations due to their limited ability to protect themselves. Parental guidance plays a crucial role in helping children navigate these digital dangers. This study aims to explore the internal factors of parents and their role in supporting children in managing digital risks. Using a qualitative approach and a case study methodology, the study involved four parents of children aged 7 to 12 years who were actively engaged in managing digital risks. Data collection consisted of online surveys, followed by interviews and self-report documents, all of which were analyzed using thematic analysis. The findings highlight that internal factors such as parental values and communication significantly influence how effectively parents can support their children in addressing digital risks. Based on these results, it is recommended that future interventions and support programs for parents focus on strengthening communication skills and aligning family values to better equip parents in guiding their children through digital challenges
Foreign Language Anxiety Reduction Methods Induce Positive Psychological Effects on Japanese Students with Social Anxiety Disorder
Full text linkSocial Anxiety Disorder students have been overlooked in the Second Language Acquisition (SLA) domain. This study addresses this gap by focusing on them and examining the psychological effects engendered by Foreign Language Anxiety Reduction Methods. Using the Japanese version Liebowitz Social Anxiety Scale to measure Social Anxiety Disorder levels, 114 students were categorized into four levels. They participated in a four-month English course incorporating Foreign Language Anxiety Reduction Methods. Questionnaires were conducted thrice— 1st week, 7th week, and 15th week to assess students’ emotional changes. Results revealed that social anxiety manifested particularly in conjunction with communication apprehension within Foreign Language Anxiety. This response was characteristic of Social Anxiety—the fear of negative evaluation by others. Foreign Language Anxiety Reduction Methods mitigated anxieties. The most effective approach was teacher-centered affirmative support. Furthermore, the anxiety reduction order was distinctive, Social Anxiety diminishing first, followed by Foreign Language Anxiety. Additionally, anxiety alleviation increased motivation. These findings enhance our understanding of SAD learners and inform instructional practices in the Second Language Acquisition domain
Passive Leadership and Cyberloafing: The Dual Mediating Roles of Negative Emotions and Interactional Justice among Indonesian Millennial Workers
Full text linkMillennials, known for being “always connected,” use the internet extensively for information but are also at risk of cyberloafing. This study, based on the transactional theory of stress and coping (Lazarus & Folkman, 1987), examined the impact of passive leadership on cyberloafing through the mediating roles of interactional justice and negative emotions among Indonesian millennial workers. This cross-sectional research employed purposive sampling to collect data from 634 workers aged 26 to 42 years. Measurements included the Cyberloafing Scale, the Justice Scale, the Job-Related Affective Well-Being Scale, and the Multifactor Leadership Scale. The findings revealed that negative emotions significantly and partially mediated the effect of passive leadership on cyberloafing (t = 9.014, p = 0.000). However, interactional justice did not significantly mediate this relationship (t = 0.021, p = 0.983), although passive leadership influenced perceptions of interactional justice. These findings suggest implications for leadership development and workplace well-being initiatives. Organizations may benefit from fostering proactive leadership styles, enhancing transparent communication, and creating psychologically supportive environments. Moreover, interventions aimed at improving employees’ emotional regulation and coping strategies could be valuable in mitigating the negative effects of passive leadership on work behavior
Penyelesaian Masalah Pengemasan Produk dengan menggunakan Metode Hungarian dan Metode Divide Row and Subtract Column
Full text linkMasalah Penugasan (Assignment Problem) merupakan suatu kasus khusus dari masalah pemrograman liniear. Masalah penugasan digunakan untuk mengalokasikan sejumlah sumber daya pada sejumlah pekerjaan atau tugas dengan dasar satu-satu. Di mana setiap satu sumber (pekerja) ditugaskan pada satu tujuan (pekerjaan) dengan tujuan untuk meminimalkan biaya produksi atau memaksimalkan pendapatan. Pada penelitian ini, membahas mengenai penerapan masalah penugasan untuk menyelesaikan masalah maksimasi dengan data tidak seimbang (Unballanced) pada studi kasus pengemasan makanan ringan menggunakan Metode Hungarian Dan Metode Divide Row And Subtract Column. Metode Hungarian diawali dengan cara mengurangkan nilai terbesar di setiap baris dan mengurangkan nilai terkecil untuk setiap kolom. Sedangkan, Metode Divide Row and Subtract Column diawali dengan cara membagi nilai terbesar di setiap baris dan mengurangkan nilai terkecil di setiap kolom. Kedua metode tersebut pada dasarnya menghasilkan solusi optimal yang sama akan tetapi memiliki perbedaan pada algortima, entri matriks (dummy), dan jumlah iterasinya. 
Penentuan Cadangan Premi Dengan Metode Fackler Pada Asuransi Jiwa Dwiguna
Full text linkAsuransi merupakan suatu perjanjian antara dua pihak, dimana satu pihak berkewajiban membayar dan pihak lainnya memiliki kewajiban untuk memberikan ganti rugi kepada pembayar premi jika terjadi sesuatu pada pihak yang bersangkutan seperti kematian, kecelakaan, atau kehilangan kemampuan dalam memperoleh penghasilan sesuaai dengan kesepakatan yang telah dibuat. Pada perusahaan asuransi bisa mengalami kerugian apabila pemegang polis meninggal dunia tetapi perusahaan tidak memiliki dana, sedangkan perusahaan wajib mengeluarkan dana santunan kepada pemegang polis, keadaan ini bisa di antisipasi apabila perusaahn sudah mensiapkan cadangan premi secara tepat. Tujuan dari penelitian ini adalah untuk menentukan cadangan premi pada asuransi jiwa dwiguna menggunakan metode Fackler. Variabel yang digunakan pada penelitian ini adalah usia pemegang polis, jangka waktu pembayaran, jenis kelamin, suku bunga dan uang santunan. Pada penelitian ini dilakukan perhitungan cadangan premi untuk usia pemegang polis berusia 35 sampai 45 tahun pada laki-laki dengan jangka waktu 5,10,15 dan 20 tahun pada tingkat suku bunga 5,25% dan nilai santunan Rp.100.000.000, −. Dengan menggunakan metode fackler perusahaan hanya perlu menambahkan nilai cadangan sebesar Rp.34.659, 8 setiap tahunnya pada asuransi jiwa dwiguna untuk pemegang polis usia 35 tahun dengan jangka 5 tahun dan ini sudah melindungi nilai cadangan di tahun berikutnya dan hasil ini sangat mengantisipasi terjadi kelebihan klaim pada peserta asuransi
Cost Effectiveness Analysis (CEA) of Antihypertensives Use in Inpatient Hemodialysis Patients at Abdoel Wahab Sjahranie Hospital Samarinda
Full text linkHypertension is the first comorbid disease that can occur in patients with damaged kidney function. Apart from that, hypertension is a complicating disease that often occurs during the hemodialysis process. The large variations in the use of antihypertensives in patients with chronic renal failure on hemodialysis therapy can affect the cost incurred by these patients. The purpose of this study was to optimize the use of the most cost-effective and pharmacological antihypertensive drugs in patients undergoing hemodialysis therapy. This research is a descriptive study with a pharmacoeconomic approach using the Cost Effectiveness Analysis (CEA) method. The measurement indices used to analyze the data are ACER and ICER. Data collection was conducted retrospectively, taken from the medical records of inpatient hemodialysis patients by reviewing the inclusion data of patients who were eligible to be research objects. Direct medical costs were taken from the average cost of hemodialysis, other procedures, room costs and drug costs. The effectiveness of drug therapy was determined based on the Mean Arterial Pressure (MAP) value that met the normal value. Research data is grouped based on therapy patterns and then analyzed to obtain cost – effective therapy. The results of the study showed that the percentage effectiveness of antihypertensive therapy with Furosemide was 46%, the combination of Amlodipine and Candesartan was 69% and the combination of Furosemide, Amlodipine, and Candesartan was 56%. Based on the ACER value of Rp. 1,726,133.4, the combination of antihypertensive Amlodipine and Candesartan is the most cost-effective therapy option and based on the ICER value of Rp. -6,697,330.3, the combination of antihypertensive Amlodipine and Candesartan is also the most cost-effective therapy option
Effectiveness of augmented reality application on critical thinking skills of elementary school students based on learning interest
Full text linkMathematics learning in elementary schools is still dominated by conventional methods such as lectures and the use of two-dimensional images, which do not support the development of critical thinking skills and students' spatial understanding. This challenge is increasingly relevant in the era of the Industrial Revolution 4.0, which demands the integration of technology in the learning process. This study aims to analyze the effect of the use of Augmented Reality (AR) on critical thinking skills and students' learning interest in learning spatial figures. The study used a quantitative approach with a quasi-experimental method and a Nonequivalent Control Group design. The sample consisted of 60 elementary school students in Banjarsari District who were divided into an experimental group (using AR) and a control group (conventional method). Learning lasted for four weeks, with three sessions per week. The research instruments included a critical thinking test based on Ennis's indicators and a Likert-scale learning interest questionnaire. The results of the analysis using the Shapiro-Wilk and Mann-Whitney U tests showed a significant difference between the experimental and control groups in the critical thinking posttest scores (p = 0.0076). The increase occurred in the aspects of clarification, inference, and argument evaluation. In addition, students' learning interest in the experimental group also increased, indicated by active involvement and higher motivation. In conclusion, using AR effectively improves students' critical thinking skills and learning interests. The implications of this study indicate that AR technology can be an innovative alternative to mathematics learning. The contribution of this study lies in the development of technology-based learning strategies to support the 21st-century skills of elementary school students
MODUL SEMIPRIME
Full text linkSuatu -modul kanan dikatakan prime jika dan hanya jika untuk setiap submodul , berlaku . -modul kanan dikatakan semiprime jika dan hanya jika submodul semiprime. Dalam tulisan ini, diberikan beberapa syarat sehingga didapat pernyataan ; Suatu -modul kanan dikatakan semiprime jika dan hanya jika untuk setiap submodul , maka ideal semiprime di dalam ring
EFEKTIVITAS MAKE A MATCH DAN THINK PAIR SHARE DALAM KEMAMPUAN KOMUNIKASI MATEMATIS PESERTA DIDIK
Full text linkPembelajaran yang monoton menyebabkan rendahnya kemampuan komunikasi matematis siswa. Penelitian ini membandingkan pengaruh model pembelajaran kooperatif Make A Match dan Think Pair Share (TPS) terhadap kemampuan komunikasi matematis siswa kelas VIII SMP Negeri 1 Salam. Penelitian menggunakan metode true experiment dengan dua kelas sampel yang dipilih secara acak. Data dikumpulkan melalui tes dan observasi, lalu dianalisis menggunakan uji Mann-Whitney karena data tidak berdistribusi normal. Hasil menunjukkan rata-rata skor kelas Make A Match (77,39) lebih tinggi dibanding TPS (70,13), dengan signifikansi 0,029 (<0,05). Kesimpulannya, terdapat perbedaan signifikan antara kedua model, di mana Make A Match lebih efektif dalam meningkatkan komunikasi matematis karena mendorong keaktifan siswa dalam kelompok
Geometry Worksheet Based on Augmented Reality to Improve Slow Learner Student's Visual-Spatial Ability
Full text linkThe purpose of this study to develop geometry worksheet to improve the visual-spatial abilities of slow-learner students. This study uses the method is Research and Development (R&D) research which in the development process uses the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The subjects in this study were students in the inclusion class of one of the Muhammadiyah high schools in the city of Yogyakarta. Data collection methods are observation, interviews, pretest-posttest tests, and questionnaires. The instruments used in this study were questionnaire instrument validated by media experts and material experts, an instrument for student responses, and pretest-posttest questions. Based on the validity test, the worksheet is included in the good category in terms of material with an average score of 79.67, and very good in terms of media with an average score of 77 so it is valid. Then, based on student responses, the worksheet is included in the good category with an average score of 78 so it is practical. Meanwhile, based on the results of the pretest-posttest achievements there was an increase, so it is included in the effective category to improve students' visual-spatial abilities