Browsing QUARFE 2020 by Publisher "Qatar University Press"
Now showing items 41-60 of 305
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Cantilever Beam Metastructure for Active Broadband Vibration Suppression
( Qatar University Press , 2020 , Poster)This paper presents a beam structure of a new metamaterial-inspired dynamic vibration attenuation system. The proposed experimental research presents a designed cantilevered zigzag structure that can have natural frequencies ... -
Capacitive type Humidity sensor based on PANI decorated Cu-ZnS porous micropshere
( Qatar University Press , 2020 , Poster)PANI coated Cu-ZnS porous microsphere structures have been synthesized by hydrothermal method and in-situ polymerization process. The synthesized composite is characterized by different techniques in order to study the ... -
Catalytic decomposition of ethanol over bimetallic NiCo catalysts for carbon nanotube synthesis
( Qatar University Press , 2020 , Poster)In this work we investigate the use of NiCo bimetal/oxide as catalyst for hydrogen production from ethanol, with a focus on the deactivation pattern and the nature of the observed carbon deposition [1, 2]. It is well known ... -
Celebrating Culture - Literary Communities of Practice in Doha
( Qatar University Press , 2020 , Poster)Our paper focuses on the role of arts and culture in Doha. More specifically, we examine literary circles in Doha (both Arab and English speaking) and regard them as 'communities of practice.' According to Etienne Wenger, ... -
Cellulose microfibers (CMFs) reinforced smart self-healing polymeric composite coatings for corrosion protection of steel
( Qatar University Press , 2020 , Poster)The use of organic coating for the metals has been widely being used to protect the surface against corrosion. Polymeric coating incorporated with Nanocontainers loaded with inhibitor and self-healing provides better ... -
Changes in Dietary Habits and Eating Behaviors during COVID-19 Induced Confinement
( Qatar University Press , 2020 , Poster)The purpose of this study was to evaluate the dietary habits (DH) and eating behaviors (EB) among adults during COVID19-induced confinement. For this purpose, an online survey designed to assess the change in DH and EB ... -
Characterization of the Extracellular Polymeric Substances (EPS) of Virgibacillus strains capable of mediating the formation of high Mg-calcite and protodolomite
( Qatar University Press , 2020 , Poster)The origin of dolomite -a common carbonate mineral- is the subject of an ongoing debate. It has been proposed that extracellular polymeric substances (EPS) excreted by microbes contain specific organic molecules that ... -
Child Disciplinary Practices in Relation to Household Head Education and Beliefs in Five Middle East and North African Countries: Cross Sectional Study-Further Analysis of Multiple Indicator Cluster Survey Data
( Qatar University Press , 2020 , Poster)Introduction: Internationally, eight out of ten children are exposed to violent discipline by their caregivers. To reduce the prevalence of violent discipline against children, we should understand the social and economic ... -
Choice and Expenditure: A Double Hurdle Model of Private Tutoring in Qatar
( Qatar University Press , 2020 , Poster)To shed light on the demand for private tutoring, this paper presents new evidence for the case of Qatar. The household demand for private tutoring is estimated using the double hurdle model using a sample of 1226 participants ... -
Clinical Utility and Cost Effectiveness of Complement 3 and Complement 4 in Different Clinical Subspecialties in Hamad Medical Corporation
( Qatar University Press , 2020 , Poster)Background: Complement system is one of ancient innate immune system in our body fighting against pathogens and foreign bodies. It is activated by either one of its three pathways, classical, alternative or lectin. Because ... -
Co-Incidence of Human Papillomaviruses and Epstein-Barr Virus is Associated with Advanced Tumor Stage: A Tissue Microarray Study of Head and Neck Cancers
( Qatar University Press , 2020 , Poster)Background: Human papillomaviruses (HPVs) and Epstein-Barr virus (EBV), are known oncoviruses and can be co-present and hence cooperate in the development of human carcinomas, including head and neck. Methods: We herein ... -
CO-PREVALENCE OF HUMAN PAPILLOMAVIRUS AND EPSTEIN BARR VIRUS IN HEALTHY BLOOD DONORS IN QATAR
( Qatar University Press , 2020 , Poster)Introduction: Infections with human oncoviruses such as high-risk human papillomaviruses (HPVs) and Epstein-Barr virus (EBV) are globally prevalent in the adult population. Both viruses are strongly associated with several ... -
Combustion-Free Synthesis of Lithium Manganese Oxide Composites with CNTs/GNPs by Chemical Coprecipitation for Energy Storage Devices
( Qatar University Press , 2020 , Poster)Nano Spinel Lithium Manganese Oxide (LiMn2O4) was distributed properly on carbon nanotubes ( CNTs) and graphene nanoplatelets (GNPs) using chemical coprecipitation method. The original particle size was less than 40 nm, ... -
Comparison of co-presence of Epstein-Barr virus and high-risk human papillomaviruses in colorectal cancers in the Middle East Region
( Qatar University Press , 2020 , Poster)Background: Several studies have shown the presence of onco viral DNA in colorectal tumor tissues. Viral infection by onco-viruses such as Human papillomaviruses (HPVs) and Epstein-Barr virus (EBV) are well-known to be ... -
Computational investigation of wall shear stress patterns on calcified aortic valve leaflets
( Qatar University Press , 2020 , Poster)Background: Aortic valve diseases affect about 25% of the population over 65 years of age. Aortic valve separates the left ventricle from the aorta, and consists of three half-moon shaped leaflets. The leaflets are highly ... -
Computational modeling of motile cilia generated cerebral flow dynamics in zebrafish embryo
( Qatar University Press , 2020 , Poster)Background: Motile cilia are hair-like microscopic structures which move the fluids along the epithelial surfaces. Cilia cover a wide range of regions in the nervous system, such as the nasal cavity, spinal cord central ... -
Conjugation of CTGF with Reduced Graphene Oxide Nanoparticles for the development of wound healing hydrogel patch
( Qatar University Press , 2020 , Poster)Non-healing chronic wounds are the key concern in type-2 diabetes that frequently leads to chronic infections, finally causes amputation of limbs, organs etc. Decrease in the proliferation and migration of cells such as ... -
Construction of Modified CuO-Co3O4-ZnO Electrode for Acetone Detection in Breath
( Qatar University Press , 2020 , Poster)Acetone in breath can be used as a biomarker for noninvasive detection of diabetes. The acetone level in breath is substantially high for diabetic patients. In this study, mixed metal oxide nanocomposite of CuO-Co3O4 -ZnO ... -
Consumer Behavior in Grocery Shopping: Qatari Community during the GCC Blockade
( Qatar University Press , 2020 , Poster)While Qatar had the highest GDP in the world in 2016, it faced the dilemma of a blockade in June 2017. This had a direct effect on the Qatari community who united and showed clear signs of patriotism. Consumers turned from ... -
Corrosion behavior of Epoxy/ZnO-NiO nanocomposite coating on steel substrate
( Qatar University Press , 2020 , Poster)Corrosion is a very common natural phenomenon which leads to huge losses especially in the building construction, turbines in the industries and several other fields. In this research we synthesized and developed new coating ...