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All Journal IJECA (International Journal of Education and Curriculum Application) Sriwijaya Journal of Forensic and Medicolegal
Hui Wang
Zhenjiang College
Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Social Sciences

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The Potential of Postmortem Imaging in Heatstroke Diagnosis: A Medicolegal Study in Vietnam Nguyen Trangh; Wang, Hui
Sriwijaya Journal of Forensic and Medicolegal Vol. 1 No. 2 (2023): Sriwijaya Journal of Forensic and Medicolegal
Publisher : Phlox Institute: Indonesian Medical Research Organization

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59345/sjfm.v1i2.60

Abstract

Introduction: Heatstroke is a life-threatening medical emergency with a high mortality rate, particularly in tropical regions like Vietnam. Accurate diagnosis is crucial for both clinical management and medicolegal investigations. Postmortem imaging techniques, such as computed tomography (CT) and magnetic resonance imaging (MRI), offer a non-invasive means of assessing internal organ damage associated with heatstroke. This study aimed to evaluate the utility of postmortem imaging in diagnosing heatstroke and its associated complications in the Vietnamese population. Methods: A retrospective analysis was conducted on medicolegal autopsy cases involving suspected heatstroke deaths in Vietnam between 2018 and 2023. Postmortem CT and/or MRI scans were performed prior to autopsy, and findings were correlated with autopsy results, including histopathological examination. Results: A total of 120 cases were included in the study. Postmortem imaging revealed characteristic findings associated with heatstroke, such as cerebral edema, pulmonary edema, and multiorgan congestion. These imaging findings were consistent with autopsy and histopathological results in the majority of cases. In some instances, imaging identified subtle findings, such as early myocardial injury, that were not readily apparent at autopsy. Conclusion: Postmortem imaging, particularly CT and MRI, can play a valuable role in the diagnosis of heatstroke and its complications in medicolegal investigations. These techniques offer a non-invasive means of visualizing internal organ damage and can complement traditional autopsy findings. Further research is warranted to establish standardized imaging protocols and to explore the potential of advanced imaging techniques, such as diffusion-weighted imaging, in heatstroke diagnosis.
Application of the Jigsaw Learning Model to Improve Student Learning Outcomes in Mathematics Almaghfiroh, Violina; Wang, Hui; Purposari, Luthfiya Fathi
IJECA (International Journal of Education and Curriculum Application) Vol 7, No 1 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/ijeca.v7i1.22499

Abstract

The quality of student learning outcomes in science subjects (exact), especially mathematics, is still relatively low and has always been a problem in Indonesia, namely in education. This is supported by the findings of the 2015 PISA (Program for International Student Assessment) study, which found that Indonesian students ranked 62 out of 70 countries, especially in mathematics skills. So, this study aims to improve student learning outcomes in learning mathematics, focusing on quadratic equation material. The research method used is classroom action research (CAR), applying the jigsaw-type cooperative learning model. The subject was class nine grade students of Al-Kautsar Plus Junior High School, Malang City, totaling 20 students consisting of 12 female and eight male students. Data collection using observation and test techniques. Qualitative analysis was carried out of the observation data, which contained information on student interaction. The research design consisted of planning, action, observation, and reflection. Quantitatively, the test data were analyzed, including pre and post-test scores measuring the math learning outcomes of students. The results of this study began from the beginning (pre-cycle) to cycle I, which is an increase from 50% to 65%. Then, in cycle II, there was an increase from 65% to 90% because it had met the success indicator with the number of students who scored ≥ 75 more than 80%, so it stopped in cycle II. Thus, implementing the Jigsaw-type cooperative model can improve students' learning outcomes in mathematics. In conclusion, the findings of this study show that a jigsaw-type cooperative learning model effectively improves mathematics education and teaching in secondary schools. The jigsaw model, which encourages student engagement, collaboration, and critical thinking, is a promising approach to improving mathematics education and preparing students for success in the 21st century, so it has the potential to be widely adopted in other schools by educators.
Co-Authors Almaghfiroh, Violina Nguyen Trangh Purposari, Luthfiya Fathi