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A combined pathway for the synthesis of nitidine family alkaloids
( Springer Netherlands , 2019 , Article)Three related alkaloids, oxynitidine, nitidine and 5,6-dihydronitidine, have been afforded by the new synthetic protocols. In this approach, the Ni-catalyzed annulation reaction is indicated as the key step to construct ... -
A comparative study on the performance of hybrid solar cells containing ZnSTe QDs in hole transporting layer and photoactive layer
( Springer Netherlands , 2016 , Article)In this paper, ZnSTe quantum dots-based hybrid solar cells (HSC) with two different device architectures have been investigated. The improved performance of the poly(3-hexylthiophene) (P3HT) and [6,6]phenyl C71 butyric ... -
Annual performance analysis of adding different nanofluids in stepped solar still
( Springer Netherlands , 2019 , Article)The use of MgO and TiO2 nanofluids at different concentrations was investigated annually to evaluate the distillate output of stepped solar stills. Nanofluids concentrations ranged from 0.1 to 0.2% in the present research ... -
Assessment of the algae-based biofertilizer influence on date palm (Phoenix dactylifera L.) cultivation
( Springer Netherlands , 2019 , Article)Date palm (Phoenix dactylifera L.) is the main fruit crop found in the arid and semi-arid regions of the world. It naturally adapts to the adverse environments of extreme heat and water scarcity and prevents further ... -
Cryopreservation of microalgae from desert environments of Qatar
( Springer Netherlands , 2016 , Article)The Qatar University Culture Collection of Cyanobacteria and Microalgae (QUCCCM) is a unique resource containing a diverse collection of microalgae and cyanobacteria, isolated from the Qatar desert environment. In order ... -
Donating Time or Money? The Effects of Religiosity and Social Capital on Civic Engagement in Qatar
( Springer Netherlands , 2018 , Article)Few studies have examined the role of religiosity and social capital on civic engagement in the context of a Muslim country. In this paper, we explore the impact of religiosity and social capital on charitable donations ... -
DSC investigation of the gelation kinetics of emulsified PAM/PEI system: Influence of surfactants and retarders
( Springer Netherlands , 2015 , Article)Water production in the oilfields has a negative impact on the production and economy. It is highly desired to shut off water paths without affecting the hydrocarbon zones. Polymer gels are frequently used for water control ... -
E-cadherin/catenin complex modulations in human oral cancer
( Springer Netherlands , 2015 , Book chapter)Oral cancer is a common neoplasm in both male and female worldwide; the incidence and mortality of this cancer have increased over the past decades. Cancer metastasis is a major cause of morbidity and mortality in oral ... -
Effect of blend ratio and nanofiller localization on the thermal degradation of graphite nanoplatelets-modified PLA/PCL
( Springer Netherlands , 2019 , Article)A variety of poly(lactic acid) (PLA)-poly(ε-caprolactone) (PCL) samples with different PLA:PCL ratios, containing different contents of graphite nanoplatelets (GrP), were analysed in a thermogravimetric analyser (TG) under, ... -
Effect of microwave sintering on the crystal domain and electrical properties of TiO2 nanoparticles
( Springer Netherlands , 2017 , Article)We report the effect of microwaves sintering on the crystal domain and electrical properties of TiO2 nanoparticles. Commercially available TiO2 nanoparticles of 25 nm size were coated on ITO (indium tin oxide) substrates, ... -
Elastomeric actuators based on ethylene-vinyl acetate and carbon nanotubes
( Springer Netherlands , 2014 , Book chapter)The development of new types of visual-aid tablet for visually impaired people requires the development of cheap, but still very effective photoactuating materials. This requirement can be satisfied by the use of new kind ... -
Elemental compositions of particulate matter retained on air condition unit’s filters at Greater Doha, Qatar
( Springer Netherlands , 2019 , Article)© 2019, The Author(s). Elemental composition of airborne dust samples retained by internal filters of air condition units (ACUs) was determined at 12 locations of Doha city, state of Qatar. Twenty-four elements: Al, Ca, ... -
Graphene oxide reinforced polyvinyl alcohol/polyethylene glycol blend composites as high-performance dielectric material
( Springer Netherlands , 2016 , Article)Novel flexible dielectric composites composed of polyvinyl alcohol (PVA), polyethylene glycol (PEG), and graphene oxide (GO) with high dielectric constant and low dielectric loss have been developed using facile and ... -
Influence of temperature on the confinement effects of micro and nano level graphite filled poly(isoprene-co-isobutylene) composites
( Springer Netherlands , 2016 , Article)Electrically conducting elastomer composites using nanocarbon fillers have utmost significance in the current scenario of flexible electronics. Though a large number of reports have come out in this topic, the influence ... -
Microalgal bioremediation of petroleum-derived low salinity and low pH produced water
( Springer Netherlands , 2019 , Article)Due to the presence of toxic organic compounds and heavy metals, it is essential to treat the produced water before reuse or discharge to the environment. In this study, produced water sample was collected from a local ... -
PAH concentrations and exposure assessment from house dust retained in air-conditioning filters collected from Greater Doha, Qatar
( Springer Netherlands , 2019 , Article)Polycyclic aromatic hydrocarbons (PAHs) bound in dust retained in air-conditioning unit filters from 13 households in Greater Doha, Qatar, were quantified using GC–MS spectrometry. The median concentrations of ∑16PAH and ... -
Potential of novel desert microalgae and cyanobacteria for commercial applications and CO2 sequestration
( Springer Netherlands , 2019 , Article)CO2 fixation by phototrophic microalgae and cyanobacteria is seen as a possible global carbon emissions reducer; however, novel microalgae and cyanobacterial strains with tolerance to elevated temperatures and CO2 ... -
Progress in biocatalysis with immobilized viable whole cells: systems development, reaction engineering and applications
( Springer Netherlands , 2017 , Article Review)Viable microbial cells are important biocatalysts in the production of fine chemicals and biofuels, in environmental applications and also in emerging applications such as biosensors or medicine. Their increasing significance ... -
Solution-processed white graphene-reinforced ferroelectric polymer nanocomposites with improved thermal conductivity and dielectric properties for electronic encapsulation
( Springer Netherlands , 2017 , Article)The recent surge in graphene research has stimulated interest in the investigation of various two-dimensional (2D) nanomaterials, including 2D boron nitride (BN) nanostructures. Among these, hexagonal boron nitride nanosheets ... -
Synthesis and characterisation of Ni–B/Ni–P–CeO2 duplex composite coatings
( Springer Netherlands , 2018 , Article)Abstract: Binary (Ni–B, Ni–P) and duplex coatings (Ni–B/Ni–P, Ni–B/Ni–P–CeO2) with an inner Ni–B layer were electrodeposited on mild steel substrates. A comparison of the structural, surface, mechanical, and electrochemical ...