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All Journal MDJ (Makassar Dental Journal) Nusantara Science and Technology Proceedings
Sitti Rafiah
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Dentistry Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Improving Student Outcomes Using Cognitive Load Theory-Based Multiple-Assessments throughout Online Learning of the Musculoskeletal Block During the COVID-19 Pandemic Asty Amalia Nurhadi; Shelly Salmah; Gita Vita Soraya; Bau Dilam Ardiansyah; Sitti Rafiah
Nusantara Science and Technology Proceedings Federation of Islamic Medical Associations
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2209

Abstract

Since its first emergence in China, the global spread of COVID-19 had reached 269.721.683 cases in over 200 countries in December 2021. The rapid spread of this virus had urged WHO and governments to establish policies on physical distancing. Restriction of offline learning activities in Indonesia forced the educational institution to rapidly adapt. As consequence, we had to change all learning and assessment processes into online forms. We found many challenges in the implementation, particularly in the assessment processes. Therefore, in consideration of Cognitive Load Theory, we decided to intervene in these problems by implementing multiple assessment strategies in Musculoskeletal System Course, for 2020 batch students. We compared the results of the 2020 cohort with the results of the 2019 cohort in the Musculoskeletal System using the Mann-Whitney test (SPSS version 24). There were 256 students (2020 cohort) who participated in this System in comparison to 318 students (2019 cohort). Statistical analysis showed that there was a significant difference between the outcomes of the 2020 cohort that experienced multiple assessments before final examination in comparison to 2019 cohort who only experienced single-end examination (p value <0.000). Mean outcomes of 2020 cohort (334.34) where significantly higher compared to 2019 cohort (240.96). Our study had shown that students’ outcome during online learning due to COVID-19 pandemic can be improved by chunking the volume of learning materials into several parts. This method was in line with Cognitive Load Theory and gave possibility for students to organize their learning as well as to get multiple feedback for their improvement.
Low density lipoprotein sebagai faktor prediktor terhadap penurunan densitas mineral tulang pada osteoporosis Sitti Rafiah; Irene Edith Rieuwpassa; Uleng Bahrun; M. Iqbal Basri
Makassar Dental Journal Vol. 3 No. 2 (2014): Vol 3 No 2 April 2014
Publisher : Makassar Dental Journal PDGI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.004 KB) | DOI: 10.35856/mdj.v3i2.173

Abstract

Osteoporosis merupakan penyakit degeneratif metabolik yang ditandai dengan pengurangan massa tulang dan berisiko terjadi fraktur sehingga mengakibatkan kehilangan kemandirian dan mobilitas. Insiden osteoporosis meningkat sejalan dengan meningkatnya usia harapan hidup. Penulisan makalah ini dimaksudkan untuk mengetahui peranan LDL terhadap penurunan densitas mineral tulang sehingga diharapkan LDL yang merupakan uji laboratorium sederhana dapat digunakan sebagai penanda untuk memprediksi penurunan densitas mineral tulang. Metode yang digunakan untuk menilai penurunan densitas mineral tulang adalah dengan menggunakan dual energy x-ray absorptiometry (DEXA), sedang pengukuran LDL dengan metode fotometri menggunakan Pentra 400. Hiperkolestronemia telah dikaitkan dengan penurunan densitas mineral tulang. Tingginya kadar kolesterol LDL dapat menyebabkan osteoporosis, dengan aktifnya suatu molekul receptor activator of nuclear faktor kappa β ligan (RANKL) yang dikeluarkan oleh sel imun tubuh. Hasilnya menunjukkan bahwa kolesterol LDL yang tinggi dapat meningkatkan aktivitas selular dalam kehilangan massa tulang yang terlihat pada osteoporosis. Produk oksidasi LDL (oxLDL) mempunyai efek toksik terhadap osteoblas dengan menyebabkan apoptosis osteoblas dan menghambat diferensiasi preosteoblas yang mengakibatkan berkurangnya mineralisasi tulang. Hal Ini menunjukan adanya hubungan antara lipid dan metabolisma tulang. Disimpulkan bahwa LDL akan mengaktivasi pembentukan, fungsi dan diferensiasi osteoklas yang terlibat dalam remodeling tulang penyebab penurunan densitas mineral tulang pada osteoporosis.
Co-Authors Andi Nilawati Usman Arsyad, Muhammad Aryadi Asty Amalia Nurhadi Bau Dilam Ardyansyah Gita Vita Soraya Irene Edith Rieuwpassa M. Iqbal Basri Mardiana Ahmad Muh Tamar Nur Hayati Saud Shelly Salmah Uleng Bahrun