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All Journal International Journal of Public Health Science (IJPHS) Perfecting a Video Game with Game Metrics
Johan Harlan
Gunadarma University
Computer Science & IT Health Professions

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The role of nutrition in COVID-19 pandemic Lestari Octavia; Johan Harlan
International Journal of Public Health Science (IJPHS) Vol 10, No 2: June 2021
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijphs.v10i2.20662

Abstract

In the ongoing coronavirus disease 19 (COVID-19) pandemic, the most vulnerable groups are those with pre-existing health problems and the elderly due to their reduced immune system to prevent infection. Nutrition plays a significant role in maintaining the immune system to prevent pathogen manifestation. This review aimed to identify and discuss the role of nutrients in COVID-19 in developing immunity. Studies included in this review were obtained from articles published in reputable journals accessed from the National Center for Biotechnology Information (NCBI) website, leading search engine, in a retrospective timeframe from January 1 to May 2, 2020, using specified keywords. The search resulted in seven articles relevant to the objective of the review. They highlighted the role of nutrients, namely the deficiency of essential nutrients that might exacerbate the health status. The consumption of certain nutrients, micronutrient and omega-3 might be tolerated up to the upper level of recommended dietary allowance (RDA) to benefit the health status. This review can assist in providing the prevention and mitigation approach to improve immunity amid the COVID-19 pandemic. The government should expand the continuous delivery of messages regarding the benefit of appropriate nutrients in maintaining health and immune system. Furthermore, the current condition gives the best opportunity to educate the community on a healthy and balanced diet for daily life.
Hybrids Otsu method, Feature region and Mathematical Morphology for Calculating Volume Hemorrhage Brain on CT-Scan Image and 3D Reconstruction Sumijan Sumijan; Sarifuddin Madenda; Johan Harlan; Eri Prasetya Wibowo
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 1: March 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i1.3146

Abstract

Traumatic brain injury is a pathological process of brain tissue that is not degenerative or congenital, but rather due to external mechanical force, which causes physical disorders, cognitive function, and psychosocial. These disorders can be permanent or temporary and accompanied by the loss of or change in level of consciousness. Segmentation techniques for Computed Tomography Scanner (CT scan) of the brain is one of the methods used by the radiologist to detect abnormalities or brain hemorrhage that occurs in the brain.  This paper discusses the extraction area of a brain hemorrhage on each image slice CT scan and 3D reconstruction, making it possible to visualize the 3D shape and calculating the volume of a brain hemorrhage. Extraction of brain hemorrhage area is based on a combination of Otsu algorithm, the algorithm Morphological features and algorithms region. For the reconstruction of a 3D brain hemorrhage area of the bleeding area on a 2D slice is done by using a linear interpolation approach.
Image Processing of Panoramic Dental X-Ray for Identifying Proximal Caries Jufriadif Na'am; Johan Harlan; Sarifuddin Madenda; Eri Prasetyo Wibowo
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 2: June 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i2.6856

Abstract

This study aims to facilitate the identification of proximal caries in the Panoramic Dental X-Ray  image. Twenty-seven X-Ray images of proximal caries were elaborated. The images in digital form were processed using Matlab and Multiple Morphological Gradient. The process produced sharper images and clarifies the edges of the objects in the images. This makes the characteristics of the proximal caries and the caries severity can be identified precisely.
Co-Authors Eri Prasetya Wibowo Eri Prasetyo Wibowo, Eri Prasetyo Jufriadif Na`am, Jufriadif Lestari Octavia Sarifuddin Madenda Sumijan Sumijan