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السجلات المعروضة 4710 -- 4729 من 48685
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Characterization of neurobehavioral pattern in a zebrafish 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced model: A 96-hour behavioral study
( Public Library of Science , 2022 , Article)Parkinson’s disease (PD) is the most common brain motor disorder, characterized by a substantial loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc). Motor impairments, such as dyskinesia, bradykinesia, ... -
Characterization of Polymers in Dilute Solutions
( Qatar University , 1997 , Article)Basic moleculer characterisitics of polymers are: molecular architecture, molecular weight and size, and their distributions. All these characterisitics are derived from measurements of very dilute solutions. Methods of ... -
Characterization of polysulfone/diisopropylamine 1-alkyl-3-methylimidazolium ionic liquid membranes: high pressure gas separation applications
( Blackwell Publishing Ltd , 2020 , Article)Membrane separation is gaining great attention in many applications, especially in gas separation. Polysulfone (PSF) is the most widely studied polymeric membrane material for CO2 in its pure or modified state. Ionic liquids ... -
Characterization of regulatory sequences in alternative promoters of hypermethylated genes associated with tumor resistance to cisplatin
( Spandidos Publications , 2014 , Article)The development of cisplatin resistance in human cancers is controlled by multiple genes and leads to therapeutic failure. Hypermethylation of specific gene promoters is a key event in clinical resistance to cisplatin. ... -
Characterization of tbm muck for construction applications
( MDPI , 2021 , Article)This paper investigates the potential utilization of the Tunnel Boring Machine (TBM) muck generated from Doha's Metro Gold Line in different construction applications. The properties of the raw TBM muck were studied, and ... -
Characterization of the Efficacy of a Split Swine Influenza A Virus Nasal Vaccine Formulated with a Nanoparticle/STING Agonist Combination Adjuvant in Conventional Pigs
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Swine influenza A viruses (SwIAVs) are pathogens of both veterinary and medical significance. Intranasal (IN) vaccination has the potential to reduce flu infection. We investigated the efficacy of split SwIAV H1N2 antigens ... -
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 ... -
Characterization of the extracellular polymeric substances (EPS) of Virgibacillus strains capable of mediating the formation of high Mg-calcite and protodolomite
( Elsevier B.V. , 2019 , Article)The origin of dolomite –a common mineral in the geological record– is the subject of an ongoing debate. Among different hypotheses, it has been proposed that extracellular polymeric substances (EPS) excreted by microbes ... -
Characterization of the indoor-outdoor radio propagation channel at 2.4 GHz
( IEEE , 2011 , Conference Paper)We present the site-specific signal strength measurement results for path loss, shadowing, and fading in 2.4GHz band under typical harsh environment (high temperature 4050 C and humidity 8090%). We use spectrum analyzer ... -
A characterization of Top Trading Cycles under trading networks
( Elsevier , 2023 , Article)We consider an object reallocation problem within a specific class of trade restrictions. An agent can only receive the object of someone else connected to him, which is referred to as feasibility. We introduce a Network ... -
Characterization of tunisian Bacillus thuringiensis strains with abundance of kurstaki subspecies harbouring insecticidal activities against the lepidopteran insect ephestia kuehniella
( Springer US , 2010 , Article)The study of 257 crystal-producing Bacillus thuringiensis isolates from bioinsecticide free soil samples collected from different sites in Tunisia, was performed by PCR amplification, using six primer pairs specific for ... -
Characterization of untreated and treated male and female date palm leaves
( Elsevier, Ltd , 2013 , Technical Report)This paper describes the characterization of male and female date palm leaves from two different cultivars, Sheshi female and unknown male leaves. Characterization was done for both untreated and NaOH treated date palm ... -
Characterizing Biaxially Stretched Polypropylene / Graphene Nanoplatelet Composites
( Frontiers Media S.A. , 2021 , Article)In this work, polypropylene (PP) nanocomposites containing different weight concentration of graphene nanoplatelets (GNP) were prepared by melt-mixing using an industrial-scale, co-rotating, intermeshing, twin-screw extruder. ... -
Characterizing biaxially stretched polypropylene/graphene nanoplatelet composites
( International Committee on Composite Materials , 2017 , Conference Paper)During moulding processes such as thermoforming and blow moulding, heated polymer materials are subjected to rapid biaxial deformation as they are drawn into the shape of a mould. It is therefore essential to accurately ... -
Characterizing epidemiology of prediabetes, diabetes, and hypertension in Qataris: A cross-sectional study
( Public Library of Science , 2021 , Article)Objectives To characterize the epidemiologic profiles of prediabetes mellitus (preDM), diabetes mellitus (DM), and hypertension (HTN) in Qataris using the nationally representative 2012 Qatar STEPwise Survey. Methods A ... -
Characterizing fracture toughness using machine learning
( Elsevier B.V. , 2021 , Article)The existing models for fracture toughness characterization based on nanoindentations that account for the fracture length are limited to simple (ideal) geometries that are absent in shales. The present study proposes two ... -
Characterizing pharmaceuticals on data exclusivity in Malaysia
( National Institute of Science Communication and Information Resources , 2015 , Article)This study analyses the occurrence and characteristics of pharmaceutical products containing new chemical entities granted data exclusivity in Malaysia since the implementation of the provision in 2011. Data for the drug ... -
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar’s experience
( International Society of Global Health , 2022 , Article)Background: The effective reproduction number, Rt, is a tool to track and understand epidemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset ... -
Characterizing the Qatar advanced-phase SARS-CoV-2 epidemic
( springer nature , 2021 , Article)The overarching objective of this study was to provide the descriptive epidemiology of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic in Qatar by addressing specific research questions through a ... -
Characterizing the transitioning epidemiology of herpes simplex virus type 1 in the USA: Model-based predictions
( BioMed Central Ltd. , 2019 , Article)Background: Herpes simplex virus type 1 (HSV-1) is a prevalent lifelong infection that appears to be undergoing an epidemiologic transition in the United States (US). Using an analytical approach, this study aimed to ...
