تصفح Research Units حسب العنوان
السجلات المعروضة 3236 -- 3255 من 4763
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Preparation and characterization of wollastonite/titanium oxide nanofiber bioceramic composite as a future implant material
( Elsevier , 2016 , Article)In this study, novel composites consisting of electrospun titanium dioxide (TiO2) nanofibers incorporated into high-purity wollastonite glass ceramics were prepared as materials for use in hard tissue engineering applications. ... -
Preparation and optical parameter characterization of two aldehyde derivative thin films for photonic applications by drop casting method
( John Wiley and Sons Ltd , 2020 , Article)In this study, thin films of polymer poly(methyl methacrylate) were prepared using a drop casting method. Two newly synthesized aldehyde derivatives, 2-bromomalonaldehyde and 5,6-dihydroimidazo[2,1-b]thiazole-2-carbaldehyde, ... -
Preparation and performance evaluation of speek/polyaniline composite membrane for direct methanol fuel cell
( Carl Hanser Verlag , 2017 , Article)Polymer composites comprising sulfonated poly(ether ether ketone) (SPEEK) and 10 to 50 wt% of Poly(trimellitic anhydride chloride-co-4,4'-methylenedianiline) (PTCMA) were prepared by solution casting. The effects of PTCMA ... -
Preparation and Preliminary Dielectric Characterization of Structured C-Thiol-Ene Polymer Nanocomposites Assembled Using the Thiol-Ene Click Reaction.
( Multidisciplinary Digital Publishing Institute (MDPI) , 2015 , Article)Fullerene-containing materials have the ability to store and release electrical energy. Therefore, fullerenes may ultimately find use in high-voltage equipment devices or as super capacitors for high electric energy storage ... -
Preparation and Preliminary Dielectric Characterization of Structured C60-Thiol-Ene Polymer Nanocomposites Assembled Using the Thiol-Ene Click Reaction
( MDPI AG , 2015 , Article)Fullerene-containing materials have the ability to store and release electrical energy. Therefore, fullerenes may ultimately find use in high-voltage equipment devices or as super capacitors for high electric energy storage ... -
Preparation and Preliminary Dielectric Characterization of Structured C60-Thiol-Ene Polymer Nanocomposites Assembled Using the Thiol-Ene Click Reaction
( MDPI , 2015 , Article)Fullerene-containing materials have the ability to store and release electrical energy. Therefore, fullerenes may ultimately find use in high-voltage equipment devices or as super capacitors for high electric energy storage ... -
Preparation and properties of novel activated carbon doped with aluminum oxide and silver for water treatment
( Elsevier , 2020 , Article)Novel activated carbon (AC) composite materials, namely AC doped with aluminum oxide (Al2O3) and AC doped with Al2O3 and silver (Ag) nanoparticles, have been prepared via a one-step thermal decomposition method. The developed ... -
Preparation of multiphase poly(styrene-co-butyl acrylate)/wax-clay nanocomposites via miniemulsion polymerization
( AD Publications , 2015 , Article)In the presence of different wax-clay nanocomposites concentrations, poly(styrene-co-butyl acrylate) P(S-co-BA) copolymers were prepared via free-radical random copolymerization of styrene and butyl acrylate in miniemulsion. ... -
Preparation of progressive antibacterial LDPE surface via active biomolecule deposition approach
( MDPI AG , 2019 , Article)The use of polymers in all aspects of daily life is increasing considerably, so there is high demand for polymers with specific properties. Polymers with antibacterial properties are highly needed in the food and medical ... -
Preparation, characterization, and in ovo vaccination of dextran-spermine nanoparticle DNA vaccine coexpressing the fusion and hemagglutinin genes against Newcastle disease
( Dove Press , 2016 , Article)Plasmid DNA (pDNA)-based vaccines have emerged as effective subunit vaccines against viral and bacterial pathogens. In this study, a DNA vaccine, namely plasmid internal ribosome entry site-HN/F, was applied in ovo against ... -
Pressure retarded osmosis: Advancement, challenges and potential
( Elsevier , 2021 , Article Review)An excessive amount of renewable energy could be possibly produced when solutions of dissimilar salinities are combined simultaneously in a semipermeable membrane. The aforestated energy harnessing for transformation into ... -
Prevalence and associated factors of DSM-5 insomnia disorder in the general population of Qatar
( BMC , 2021 , Article)Background: Epidemiological studies of insomnia in the Middle East remain scarce. The present study aimed to estimate the prevalence of insomnia and explore its associations in the general population of Qatar. With almost ... -
Prevalence and genetic diversity of Blastocystis sp. among autochthonous and immigrant patients in Italy
( Elsevier , 2023 , Article)The prevalence of Blastocystis sp., its genetic diversity and the distribution of circulating subtypes (STs) were molecularly investigated in a cohort of autochthonous and immigrant patients with gastrointestinal symptoms ... -
Prevalence and molecular profiling of Epstein Barr virus (EBV) among healthy blood donors from different nationalities in Qatar.
( Public Library of Science , 2017 , Article)The Epstein-Barr virus (EBV) is the causative agent of infectious mononucleosis. EBV is highly prevalent lymphotropic herpesvirus and has been linked to several malignancies. Transmission is generally by oral secretions, ... -
Prevalence and Phylogenetic Analysis of Parvovirus (B19V) among Blood Donors with Different Nationalities Residing in Qatar
( MDPI , 2021 , Article)Human parvovirus (B19V) is the causative agent of erythema infectiosum in children and is linked to a wide range of clinical manifestations. Studies related to B19V prevalence in the Middle East and North Africa (MENA) ... -
Prevalence and Potential Determinants of COVID-19 Vaccine Hesitancy and Resistance in Qatar
( Qatar University Press , 2021 , Poster)Global COVID-19 pandemic containment necessitates understanding the risk of hesitance or resistance to vaccine uptake in different populations. The Middle East and North Africa currently lack vital representative vaccine ... -
Prevalence and potential determinants of covid-19 vaccine hesitancy and resistance in qatar: Results from a nationally representative survey of qatari nationals and migrants between december 2020 and january 2021
( MDPI AG , 2021 , Article)Global COVID-19 pandemic containment necessitates understanding the risk of hesitance or resistance to vaccine uptake in different populations. The Middle East and North Africa currently lack vital representative vaccine ... -
Prevalence and potential determinants of subthreshold and major depression in the general population of Qatar
( Elsevier , 2019 , Article)Background There is a paucity of epidemiological studies of depression in war-free Arab countries. This study estimated the prevalence and potential determinants of Subthreshold (SUBDE) and Major Depressive Episode (MDE) ... -
Prevalence and sociodemographic correlates of stunting, underweight, and overweight among Palestinian school adolescents (13-15 years) in two major governorates in the West Bank
( BioMed Central Ltd. , 2009 , Article)There is little information about height and weight status of Palestinian adolescents. The objective of this paper was to assess the prevalence of stunting, underweight, and overweight/obesity among Palestinian school ... -
Prevalence of anelloviruses (TTV, TTMDV, and TTMV) in healthy blood donors and in patients infected with HBV or HCV in Qatar
( BioMed Central , 2016 , Article)Background Anelloviruses (TTV, TTMV, and TTMDV) have been associated with non A-G hepatitis. The goal of the current study was to estimate the prevalence of these anelloviruses in Qatar. Methods A total of 607 blood ...
