Pengembangan E-Book Berbasis STEM Pada Materi Ekosistem untuk Melatihkan Kemampuan Literasi Sains Siswa

Pada abad 21 media pembelajaran dituntut berbasis teknologi untuk meningkatkan mutu pembelajaran, salah satu upaya yang dilakukan yaitu membuat buku yang disajikan dalam bentuk elektronik atau dikenal dengan Electronic Book (E-book). Pendekatan belajar STEM di dalamnya mencakup pembelajaran yang diajarkan bertumpu pada permasalahan yang muncul di kehidupan sehari-hari, STEM memandu siswa melakukan proses sains dengan melakukan kegiatan eksperimental. Peserta didik dituntut untuk belajar mandiri, dan memiliki kemampuan literasi sains dengan memanfaatkan sumber daya alam untuk menyeimbangkan interaksi makluk hidup, sehingga penting bagi peserta didik memiliki kemampuan literasi sains yang dapat membantu mereka untuk menganalisis dan menyelesaikan permasalahan yang berkaitan dengan Science, Technology, Engineering, and Math. Kemampuan Literasi Sains dapat dilatihkan dengan buku ajar yang diterapkan disekolah. Penelitian ini memiliki tujuan yaitu menghasilkan E-book. E-book berbasis STEM pada materi ekosistem untuk melatihkan kemampuan Literasi Sains siswa yang layak secara teoritis dan empiris. Pengembangan E-book ini menggunakan model 4D (Define, Design, Develop, Disseminate), tanpa tahap disseminate serta diuji cobakan terbatas pada 10 peserta didik kelas X IPA SMA di SMAN 1 WARU. Kelayakan teoritis diperoleh dari hasil validasi E-book yang dilakukan oleh dosen ahli materi, dosen ahli Pendidikan, dan guru Biologi SMA menggunakan instrumen validasi. Kelayakan empiris atau kepraktisan diperoleh dari analisis respon peserta didik menggunakan angket respon peserta didik. Data hasil validitas dan kepraktisan penelitian ini dianalisis secara deskriptif kuantitatif. Hasil dari penelitian ini yaitu E-book berbasis STEM pada materi ekosistem untuk melatihkan kemampuan Literasi Sains siswa yang telah dinyatakan layak secara teoritis dan empiris. Kelayakan teoritis E-book mendapatkan hasil rata-rata persentase 98,92% dengan kategori sangat valid. Kelayakan empiris E-book mendapatkan hasil rata-rata persentase 99,27% dengan kategori sangat positif.Kata Kunci: E-book, STEM (Science, Technology, Engineering, and Math), Ekosistem, Literasi Sains

Software Framework for Customized Augmented Reality Headsets in Medicine

The growing availability of self-contained and affordable augmented reality headsets such as the Microsoft HoloLens is encouraging the adoption of these devices also in the healthcare sector. However, technological and human-factor limitations still hinder their routine use in clinical practice. Among them, the major drawbacks are due to their general-purpose nature and to the lack of a standardized framework suited for medical applications and devoid of platform-dependent tracking techniques and/or complex calibration procedures. To overcome such limitations, in this paper we present a software framework that is designed to support the development of augmented reality applications for custom-made head-mounted displays designed to aid high-precision manual tasks. The software platform is highly configurable, computationally efficient, and it allows the deployment of augmented reality applications capable to support in situ visualization of medical imaging data. The framework can provide both optical and video see-through-based augmentations and it features a robust optical tracking algorithm. An experimental study was designed to assess the efficacy of the platform in guiding a simulated task of surgical incision. In the experiments, the user was asked to perform a digital incision task, with and without the aid of the augmented reality headset. The task accuracy was evaluated by measuring the similarity between the traced curve and the planned one. The average error in the augmented reality tests was < 1 mm. The results confirm that the proposed framework coupled with the new-concept headset may boost the integration of augmented reality headsets into routine clinical practice

The need for national medical licensing examination in Saudi Arabia

<p>Abstract</p> <p>Background</p> <p>Medical education in Saudi Arabia is facing multiple challenges, including the rapid increase in the number of medical schools over a short period of time, the influx of foreign medical graduates to work in Saudi Arabia, the award of scholarships to hundreds of students to study medicine in various countries, and the absence of published national guidelines for minimal acceptable competencies of a medical graduate.</p> <p>Discussion</p> <p>We are arguing for the need for a Saudi national medical licensing examination that consists of two parts: Part I (Written) which tests the basic science and clinical knowledge and Part II (Objective Structured Clinical Examination) which tests the clinical skills and attitudes. We propose this examination to be mandated as a licensure requirement for practicing medicine in Saudi Arabia.</p> <p>Conclusion</p> <p>The driving and hindering forces as well as the strengths and weaknesses of implementing the licensing examination are discussed in details in this debate.</p

Polymicrogyria in Di George syndrome: Brief Clinical Report

We report a girl with DiGeorge syndrome with a VSD, cleft of the soft palate, and development delay, Brain imaging revealed diffuse polymicrogyria, diffuse cerebral atrophy, and ventriculomegaly. A wide range of central nervous system abnormalities have been reported in DGS and VCFS, including gyral abnormalities [lissencephaly, microgyria]. The patient reported herein strengthens the association between the 22q11 deletion spectrum and cortical dysgenesis, but the underlying pathogenetic mechanism [primary neural migration vs. vascular disruption] remains unclear

Predictors and management of right heart failure after left ventricular assist device implantation

Newer generation continuous-flow left ventricular assist devices (LVADs) have overall improved outcomes with lower incidences of right ventricular failure (RVF) than their pulsatile predecessors, yet RVF still occurs in 9% to 40% of LVAD recipients. Post-implant, RVF is associated with poor outcomes, end-organ dysfunction, high mortality, and reduced survival to transplant. Therefore, preoperative risk stratification, appropriate patient selection, and optimal timing of implant are of paramount importance. In this article, we review the definition, incidence, pathophysiology, and current risk prediction models for RVF and touch on the contemporary management of RVF perioperatively and post-LVAD implant

LARGE BOULDERS ALONG THE RABAT COAST (MOROCCO); POSSIBLE EMPLACEMENT BY THE NOVEMBER, 1st, 1755 A.D. TSUNAMI

The rocky coastline south of Rabat (Morocco) shows a large number of boulders lying upon the lithified dune system. The boulders, of 4-100 tons, may be single, in imbricated sets, or forming clusters and ridges. Several of the boulders were lifted and overturned, thus showing pool apertures downwards. Transport distance is generally decametric because of the surface roughness, but it can reach 300 m in flat areas. All boulders have been detached from their initial position at the fractured front of the active cliff. Quantification with the help wave hydrodynamics and rock displacement mechanics shows that dislodgement and transport of these boulders were accomplished rather by tsunami than by storm waves. Although no dating was attempted, post- emplacement bio-erosion by littorinids and the absence of any erosional features below the boulders suggests that they were emplaced during the 1st November 1755 AD Lisbon tsunami

Pulmonary and meningeal tuberculosis patterns in children at King Abdul-Aziz university hospital in Jeddah, Saudi Arabia: A retrospective study

Background: Paediatric Tuberculosis (TB) is a significant health problem worldwide, with the World Health Organization (WHO) reporting almost 550,000 children infected with TB yearly. Several factors have affected the TB infection rate in Saudi Arabia, including Hajj and Umrah (Islamic pilgrimages to Mecca), travel, global migration, indigence, inaccessible healthcare services and drug resistance.&nbsp;Objectives: This retrospective study aimed to describe the patterns of pulmonary TB (PTB) and tuberculous meningitis (TBM) among children admitted to the Paediatric Department at King Abdul-Aziz University Hospital (KAUH) in Jeddah, Saudi Arabia, between January 2010 and May 2015.Methods: The patients’ clinical information was retrieved retrospectively from the hospital TB register and case notes, including the age, gender, clinical features, investigations, treatments and prognosis.Results: The clinical presentation for PTB upon admission was primarily fever (75.0%), followed by cough (65.9%). For TBM, the clinical presentation was mainly convulsions (36.8%), followed by disturbed consciousness (21.1%). The diagnosis of PTB was most often made via TB culture (57.0%) and the Purified Protein Derivative (PPD) test (15.9%). There was a significantly higher number of PTB cases than TBM cases (71.0% versus 29.0%, P=0.0001).&nbsp;Conclusions: Overall, the paediatric TB mortality and morbidity rates in this area were high. Moreover, the diagnostic tools currently being used need improvement.</p