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Now showing items 61-70 of 1378
Secondary chain motion and mechanical properties of γ-irradiated-regenerated cellulose films
(
Wiley-VCH Verlag
, 2017 , Article)
Regenerated cellulose films prepared using NaOH/urea solvent system were exposed to different doses of γ-radiation, ranging from 5 to 50 kGy to modify their properties. Change in relative crystallinity as a function of ...
Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO
(
Royal Society of Chemistry
, 2017 , Article)
Photoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra ...
The Cellular Interplay Between CD44 and Na+/H+ Exchanger1 in Cardiac Remodeling
(
Hamad bin Khalifa University Press (HBKU Press)
, 2018 , Conference Paper)
Background: Extracellular matrix (ECM) remodeling is a characteristic feature of cardiac remodeling which, if left untreated, progresses to heart failure. Cardiac fibroblasts, the major cellular component of the myocardium, ...
Molecular epidemiology and genotype distribution of Human Papillomavirus (HPV) among Arab women in the state of Qatar
(
BioMed Central Ltd.
, 2014 , Article)
Background: Human Papilloma Virus (HPV) infection is the major cause of cervical cancer worldwide.
With limited data available on HPV prevalence in the Arab countries, this study aimed to
identify the prevalence and ...
USE OF EPORTFOLIOS IN K-12 TEACHER HIRING IN NORTH CAROLINA: PERSPECTIVES OF SCHOOL PRINCIPALS
(
Association for Supervision and Curriculum Development
, 2012 , Article)
This study explored the perceptions of principals involved in the hiring process of K–12 teachers in 11 counties in southeastern North Carolina. Forty-nine principals responded to a survey on ePortfolio use in the hiring ...
Utilization of Two Microalgae Species, Synechococcus sp. and Cheatoceros sp., for Aquatic Toxicity Assessments in the Qatari Marine Environmen
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
Microalgal bioassays are currently used worldwide to help assess the impacts of contaminants on aquatic ecosystems. Algae are particularly important to such assessments because they represent the basic trophic level of the ...
Highly ordered mesoporous silica and halloysite nanotubes loaded with diethylenetriamine DETA for smart anti corrosion coatings
(
Hamad bin Khalifa University Press (HBKU Press)
, 2018 , Conference Paper)
The development of nanoscience and technology has devoted significant attention to conducting studies on hollow particles. Among the available materials, mesoporous silica nanoparticles have recently gained attention as ...
Determination of Optimum Iron Requirement for Production of Microalgae Biomass as Biofuel Feedstock
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
Microalgae biomass is considered as one of the promising alternative feedstock for biofuel production. The biomass productivity of some of the microalgae can exceed an order of magnitude compared to any other terrestrial ...
Anti-microbial Activity Of Graphene Oxide Against Bacteria And Fungi
(
Hamad bin Khalifa University Press (HBKU Press)
, 2014 , Conference Paper)
Graphene Oxide (GO) is a promising material for various applications. The team prepared GO from graphite and studied the interaction with different microorganisms. Anti-microbial properties were detected for the prepared ...
Shedding Light on the Roots of Dissatisfaction with Health Care Services in the State of Qatar An Exploratory Study
(
The Social and Economic Survey Research Institute, Qatar University
, 2016 , Poster)
Dissatisfaction with health care performance is an important source of information about health system quality as perceived by the public.
It has long term negative impacts on:
*Relationship between health care users ...