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23 articles for “Usman”
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Research ArticleOpen accessIn the author namesModeling of Rainfall Characteristics for Monitoring of the Extreme Rainfall Event in Makassar CityWahidah Sanusi, Usman Mulbar, Hendra Jaya et al.Flooding is a common problem that occurs in some regions of Indonesia, including Makassar city. In the planning of flood control, rainfall variables are very necessary as the frequency, intensity and duration of rainfall. The relationship of these variables can be expressed in a curve Intensity-Duration-Frequency (IDF). The objectives of this study are to identify the best fitting distribution of … …American Journal of Applied Sciences, Vol. 14, Issue 4 · 10 Apr 2017 · 7,801 accessesView PDFCite
Research ArticleOpen accessIn the author namesGIS-Based Optimal Site Selection for Installation of Large-Scale Smart Grid-Connected Photovoltaic (PV) Power Plants in Selangor, MalaysiaSabo Mahmoud Lurwan, Mohammed Oludare Idrees, Goma Bedawi Ahmed et al.This study presents a GIS-based model to identify optimal sites to install large-scale smart grid-connected Photovoltaic (PV) power plants. Input datasets include digital elevation model, road networks, grid lines and daily average solar radiation. Using multi-criteria decision-making approach, we set constraining conditions for slope, proximity to the road, proximity to grid lines, solar radiation and land use to optimize the … …American Journal of Applied Sciences, Vol. 14, Issue 1 · 30 Jan 2017 · 8,793 accessesView PDFCite
Research ArticleOpen accessIn the author namesDesigning of Disulfide Cyclic Peptide for Inhibiting Polymerase A and B1 (PAC-PB1N) in H1N1 Virus using Molecular Simulation ApproachUsman Sumo Friend Tambunan, Mochammad Arfin Fardiansyah Nasution, Arli Aditya Parikesit et al.The drug resistance A/H1N1 flu virus is emerging rapidly. Therefore, looking for potential therapy is very important. PB2, PB and PA are subunits of viral RNA-dependent RNA polymerase (RdRp). They play an important role in viral replication. The PA and PB1 binding sites can be considered as potential targets for the development of new influenza drugs. The peptide inhibitors can … …OnLine Journal of Biological Sciences, Vol. 16, Issue 3 · 24 Aug 2016 · 7,313 accessesView PDFCite
Research ArticleOpen accessIn the author namesThe Unbelief Thinking among Muslim Youth in MalaysiaNorsaleha Mohd. Salleh, Ahmad Munawar Ismail, Noor Hafizah Mohd. Haridi et al.The unbelief thinking is a term that refers to the absence of adherence to religion in the context of free lifestyle practice which is centred on human rights and it also includes an understanding that is rooted in humanism, secularism, pluralism and liberalism. In relation to this, a research was conducted to identify the level of unbelief thinking among Muslim … …American Journal of Applied Sciences, Vol. 13, Issue 2 · 2 Feb 2016 · 8,105 accessesView PDFCite
Research ArticleOpen accessIn the author namesHOMOLOGY MODELING AND MOLECULAR DYNAMICS STUDIES OF EC1 DOMAIN OF VE-CADHERIN TO ELUCIDATE DOCKING INTERACTION WITH CADHERIN-DERIVED PEPTIDEVivitri Dewi Prasasty, Usman Sumo Friend Tambunan, Teruna Jaya SiahaanVE-cadherin is a protein in the cadherin family that is found at the adherens junctions of the microvessel endothelial cells of the Blood-Brain Barrier (BBB). It is recognized as the homotypic cell adhesion molecules and there is limited structural information on how VE-cadherins mediate cell-cell adhesion. It has been shown that the EC1 domain of cadherins is important for the … …OnLine Journal of Biological Sciences, Vol. 14, Issue 2 · 25 Jun 2014 · 7,534 accessesView PDFCite
Research ArticleOpen accessIn the author namesDESIGN OF CANDIDA ANTARCTICA LIPASE B THERMOSTABILITY IMPROVEMENT BY INTRODUCING EXTRA DISULFIDE BOND INTO THE ENZYMEUsman Sumo Friend Tambunan, Ahmad Randy, Arli Aditya ParikesitCandida Antarctica Lipase B (CALB) is extensively studied in enzymatic production of biodiesel, pharmaceutical products, detergents and other chemicals. One drawback of using CALB is its relatively low optimum temperature at 313 K (40°C). The objective of this research is to design CALB mutant with improved thermostability by introducing extra disulfide bond. Molecular dynamic simulation was conducted to get better … …OnLine Journal of Biological Sciences, Vol. 14, Issue 2 · 18 Apr 2014 · 9,495 accessesView PDFCite
Research ArticleOpen accessIn the author namesIN SILICO DESIGN OF THE M2 PROTON CHANNEL INHIBITORS OF H1N1 VIRUSUsman Sumo Friend Tambunan, Mochamad Reza Rahdiansyah, Arli Aditya ParikesitM2 proton channel of H1N1 Influenza A virus is the target protein anti-flu drugs amantadine and rimantadine. However, the two once powerful adamantane-based drugs lost their 90% bioactivity because of mutations of virus in recent twenty years. The resistance of influenza A virus to amantadine need to develop more effective adamantane-based drugs. Several research by molecular docking method have been … …OnLine Journal of Biological Sciences, Vol. 13, Issue 1 · 5 Jan 2013 · 8,002 accessesView PDFCite
Research ArticleOpen accessIn the author namesInformation and Communication Technology Innovation for Construction Site ManagementNuruddeen Usman, Ilias SaidProblem statement: The industrialization of the world from whole to site as a result of technological innovation made many industries adopting Information and Communication Technology (ICT) for processing of all their activities from inception to completion, especially in the developed nations. But, the developing nations appear to make sluggish progress towards ICT adoption due to apprehensiveness that their fraudulent activities … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 28 Jun 2012 · 7,263 accessesView PDFCite
Research ArticleOpen accessIn the author namesMolecular Dynamics Simulation of DENV RNA-Dependent RNA-Polymerase with Potential Inhibitor of Disulfide Cyclic PeptideUsman Sumo Friend Tambunan, Raima Syahidah Noors, Arli Aditya Parikesit et al.Problem statement: Our researches have proposed two ligands of disulfide cyclic polypeptide, which are CDEEC and CDGSC as potential inhibitor of DENV RNA-dependent RNApolymerase by molecular docking. Approach: Methodological approach was conducted to determine the best ligand to act as inhibitor. Molecular docking simulation was conducted without a solvent in which enzyme was made rigid and ligand was left free … …OnLine Journal of Biological Sciences, Vol. 11, Issue 2 · 30 Sep 2011 · 8,446 accessesView PDFCite
Research ArticleOpen accessIn the author namesBioactive Compounds Screening from Zingiberaceae Family as Influenza A/Swine Flu Virus Neuraminidase Inhibitor through Docking ApproachUsman Sumo Friend Tambunan, Fadilah, Arli Aditya ParikesitProblem statement: Influenza A/H1N1 is a disease caused by infection of influenza a virus subtype H1N1. It is a major health problem in tropical and subtropical countries. This virus constantly mutates and consequently will be developed into new drug-resistant strains. Approach: In this research, we have conducted docking study to screen bioactive compounds from Zingiberaceae family, which has a role … …OnLine Journal of Biological Sciences, Vol. 10, Issue 4 · 31 Dec 2010 · 8,623 accessesView PDFCite