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History of primary-series and booster vaccination and protection against Omicron reinfection
(
American Association for the Advancement of Science
, 2023 , Article)
Laboratory evidence suggests a possibility of immune imprinting for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We investigated the differences in the incidence of SARS-CoV-2 reinfection in a ...
The impact of the Arab spring on the gulf cooperation council
(
Taylor & Francis
, 2015 , Article)
It is apposite to interrogate the notion of ‘monarchical exceptionalism’ when testing the idea that the ‘Arab Spring’ has not affected the so-called ‘ruling bargain’ in the Gulf Cooperation Council (GCC). The Arab Spring ...
Nonheme Fe(IV) Oxo Complexes of Two New Pentadentate Ligands and Their Hydrogen-Atom and Oxygen-Atom Transfer Reactions
(
American Chemical Society (ACS)
, 2015 , Article)
Two new pentadentate {N5} donor ligands based on the N4Py (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) framework have been synthesized, viz. [N-(1-methyl-2-benzimidazolyl)methyl-N-(2-pyridyl)methyl-N-(bi ...
Application of Pineapple Leaves as Adsorbents for Removal of Rose Bengal from Wastewater: Process Optimization Operating Face-Centered Central Composite Design (FCCCD)
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2020 , Article)
Adsorptive removal of rose bengal (RB) from contaminated water samples was approached using pineapple leaves (PAL). Three adsorbents were utilized for that purpose; raw pineapple leaves (RPAL) and the thermally activated ...
Les représentations de la langue/culture française chez les étudiantes qatariennes inscrites en mineure de français à l’Université du Qatar
(
Slovenska Vzdelavacia a Obstaravacia s.r.o
, 2021 , Article)
Cette recherche s’intéresse aux représentations que se font les étudiantes qatariennes,
inscrites en mineure de français à l’université du Qatar, de la langue/culture française.
Son objectif est d’analyser ces représentations ...
Electrospun nanofibers of PVDF-HFP composites containing magnetic nickel ferrite for energy harvesting application
(
Elsevier Ltd
, 2020 , Article)
Nickel ferrite nanoparticles (NiFe2O4) synthesized by chemical co-precipitation method, are added to poly(vinylidene fluoride-co-hexafluoroproplyene) (PVDF-HFP) in specific concentrations (1, 2, and 3 wt%) and the composite ...
Pinctada radiata (pearl oyster): A bioindicator for metal pollution monitoring in the Qatari waters (Arabian Gulf)
(
Springer Nature
, 1998 , Article)
Bivalves are extensively used in monitoring programmes in the marine environment due to their ability to concentrate pollutants to several orders of magnitude above ambient levels in sea water. Commonly, the levels of ...
Synthesis, spectroscopic and thermal studies of charge-transfer molecular complexes formed in the reaction of 1,4-bis (3-aminopropyl) piperazine with σ- and π acceptors
(
Elsevier
, 2012 , Article)
Abstract In the present study, solid charge-transfer (CT) molecular complexes formed in the reaction of the electron donor 1,4-bis (3-aminopropyl) piperazine (APPIP) with the σ-electron acceptor iodine and π-acceptors ...
Beach tar contamination on the Qatari coastline of the Gulf
(
Elsevier
, 1999 , Article)
Beach tar concentrations were measured along the Qatari coastlines. Tar concentrations, collected from 11 locations, varied in space and time with values ranging between 2 and 1132 g m−1 (average 290 g m−1) of beach front. ...
Ether, sulfide and sulfone derivatives of cinnamaldehyde: Insights into synthesis, structural elucidation and solvatochromism
(
Elsevier
, 2024 , Article)
Symmetric ether, sulfide and sulfone derivatives based on Schiff base functionalized group (3a-c) were synthesized via classical condensation of 4,4′-diaminodiphenyl precursors (1a-c) and cinnamaldehyde (2) in methanol at ...