Browsing by Title
Now showing items 4702-4721 of 48376
-
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 ... -
Characterizing trapped NAPL in pore networks of unconsolidated sand using synchrotron micro-computed tomography
(2021 , Master Thesis)The purpose of this research paper was to determine the correlation of occupancy percentage against the pore radius and coordination numbers for each pore space. X-ray micro-computed tomography images were taken for the ... -
Characterizing trends and associations for hepatitis C virus antibody prevalence in the Middle East and North Africa: meta-regression analyses
( Springer Nature , 2022 , Article)This study characterized population-level trends and associations with hepatitis C virus (HCV) antibody (Ab) prevalence in the Middle East and North Africa (MENA). Data source was the standardized and systematically gathered ... -
CHARACTERIZING WITHIN-HOST DIVERSITY IN SHORT-TERM AND VACCINATED COVID-19 PATIENTS
(2023 , Master Thesis)SARS-CoV-2 is the etiological agent of the ongoing COVID-19 pandemic, which has caused massive losses in human lives and strained global health resources. The ongoing vaccination campaigns in many countries have spurred ... -
Characters And Characterisation In Durrell's The Alexandria Quartet
( Qatar University , 1992 , Article) -
Charactertistics of preferred gait patterns: Considerations for exercise prescription
( Nova Science Publishers, Inc. , 2016 , Book chapter)Gait patterns have been widely studied in different fields of science for their particular characteristics. A dynamic approach of human locomotion considers walking and running as two stable behaviours adopted spontaneously ... -
Charge transfer complex formation constants of edta with methylviologen And its zwitterionic derivatives
( Qatar University , 1994 , Article)In the photochemical cycle of the labelled, tris (2,2'bipyridine) ruthenium(II), Ru(bpy)32+, the photo excited label is oxidized through electron transfer quenching by methylviologen (l,l'-dimethyl-4,4'-bipyridinium dication, ... -
Charge-transfer complexes formed in the reaction of 1,4,7,10-tetraazacyclododecane with π-electron acceptors
( Elsevier , 2013 , Article)Abstract The reactions of the electron donor 1,4,7,10-tetraazacyclododecane (TACDD) with the π-electron acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone ... -
Charge-transfer complexes formed in the reaction of 2-amino-4-ethylpyridine with π-electron acceptors
( Elsevier , 2016 , Article)Molecular charge-transfer complexes (CT) of electron donor 2-amino-4-ethylpyridine (2A4EPy) with π-acceptors tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and 2,4,4,6-tetrabromo-2,5-cyclohexadienone ... -
Charge-transfer complexes of 4-methylpiperidine with σ- and π-acceptors
( Elsevier B.V. , 2015 , Article)The solid charge-transfer (CT) molecular complexes formed in the reaction of the electron donor 4-methylpiperidine (4MP) with the σ-electron acceptor iodine and π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), ... -
Charge-trapping capability and AC conductivity at different humidities of poly(ethyleneimine)-TiO2-anthocyanin modified cellulose fibres.
( Springer Verlag , 2018 , Article)Modified cellulose materials are finding increasing application in electronics, because of the need for more environmental-friendly electronic circuits. The papers prepared from poly(ethyleneimine)–TiO2–anthocyanin-modified ...
