تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 3037 -- 3056 من 3338
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Valorization of palm tree (Phoenix dactylifera L.) leaves from harsh weather climate by silage using endogenous lactic acid bacteria, and application of MALDI-TOF MS for study of populations dynamics
( Elsevier , 2023 , Article)Preservation of green palm leaves by silage preserves them as green feed in addition to the added value of probiotics and prebiotics. In this work, the characterization of fresh palm tree leaves was performed. The isolation ... -
valuation of salt tolerance in selected Qatari halophytes at the two initial growth stages
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Scarcity of water and availability of land for agricultural production are the most environmental issues that facing the (GCC) countries and Qatar one of them. Qatar lies in region which characterized by having high ... -
Vanadium(V) complexes with hydrazides and their spectroscopic and biological properties
( Springer Netherlands , 2017 , Article)The present study explores the synthesis and inhibitory potential of vanadium(V) complexes of hydrazides (1c-12c) against oxidative enzymes including xanthine oxidase and lipoxygenase (LOX). In addition, non-enzymatic ... -
Variability of Physical and Biogeochemical Parameters in the Exclusive Economic Zone of Qatar
( Qatar University Press , 2021 , Poster)The oceanographic data collected along a transect in the Exclusive Economic Zone (EEZ) of Qatar during late summer (September 2014) and winter (January 2015) have been analyzed to investigate the spatial and temporal ... -
Variant Enrichment Analysis to Explore Pathways Disruption in a Necropsy Series of Asbestos-Exposed Shipyard Workers
( MDPI , 2022 , Article)The variant enrichment analysis (VEA), a recently developed bioinformatic workflow, has been shown to be a valuable tool for whole-exome sequencing data analysis, allowing finding differences between the number of genetic ... -
Variant Enrichment Analysis to Explore Pathways Functionality in Complex Autoinflammatory Skin Disorders through Whole Exome Sequencing Analysis.
( MDPI , 2022 , Article)The challenge of unravelling the molecular basis of multifactorial disorders nowadays cannot rely just on association studies searching for potential causative variants shared by groups of patients and not present in healthy ... -
Variation in plant litter decomposition rates across extreme dry environments in Qatar
( University of Akron , 2017 , Article Review)Decomposition of plant litter is a key process for transfer of carbon and nutrients in ecosystems. Carbon contained in decaying biomass is released to the atmosphere as respired CO2, a greenhouse gas that contributes to ... -
Variations in the temperature sensitivity of spring leaf phenology from 1978 to 2014 in Mudanjiang, China
( Springer New York LLC , 2019 , Article)Continuous long-term temperature sensitivity (ST) of leaf unfolding date (LUD) and main impacting factors in spring in the period 1978–2014 for 40 plant species in Mudanjiang, Heilongjiang Province, Northeast China, were ... -
Vegetation composition of a maritime salt marsh in Qatar in relation to edaphic features
( Blackwell Publishing Ltd , 1990 , Article)Coverpercentage values for plant species were estimated using the line-intercept method along two belt transects starting at the lower mangrove frontier and ending at the upper height of the salt marsh. Twelve perennial ... -
Vegetative insecticidal protein of Bacillus thuringiensis BLB459 and its efficiency against Lepidoptera
( Elsevier Ltd , 2017 , Article)Bacillus thuringiensis strain BLB459 supernatant showed a promising activity against Lepidopteran pests with extremely damages in the larvae midgut. Investigations of the genes that encode secreted toxin demonstrated that ... -
Ventifacts distribution in Qatar
( John Wiley & Sons, Ltd , 1985 , Article)This study attempts to investigate the distribution of ventifacts in Qatar. It is believed that ventifacts are confined to the areas within about 5 km of the Miocene or Mio-Pliocene Hofuf formations and the spreads of ... -
Versatile Bifunctional and Supported IrNi Oxide Catalyst for Photoelectrochemical Water Splitting
( MDPI , 2022 , Article)Designing a high-performance electrocatalyst that operates with photon-level energy is of the utmost importance in order to address the world’s urgent energy concerns. Herein, we report IrNi nanoparticles uniformly distributed ... -
Versatile synthesis of dendritic mesoporous rare earth–based nanoparticles
( American Association for the Advancement of Science , 2022 , Article)Rare earth–based nanomaterials that have abundant optical, magnetic, and catalytic characteristics have many applications. The controllable introduction of mesoporous channels can further enhance its performance, such as ... -
Versatile synthesis of Pd and Cu Co-doped porous carbon nitride nanowires for catalytic CO oxidation reaction
( MDPI AG , 2018 , Article)Developing efficient catalyst for CO oxidation at low-temperature is crucial in various industrial and environmental remediation applications. Herein, we present a versatile approach for controlled synthesis of carbon ... -
Vertical distribution and radiological risk assessment of 137Cs and natural radionuclides in soil samples
( Nature Publishing Group , 2019 , Article)The aims of this study were to investigate the vertical distributions of natural radionuclides 232Th, 226Ra and 40K as well as anthropogenic radionuclide 137Cs in soil samples and to analyze the correlation among the ... -
Vertical orientation of solvent cast nanofilled PS-b-PEO block copolymer thin films at high nanoparticle loading
( Elsevier Ltd , 2016 , Article)We demonstrate selective dispersion of photosensitive electron acceptor phenyl-C61-butyric acid methyl ester (PCBM) in cylinder forming polystyrene-b-poly (ethylene oxide) (PS-b-PEO) block copolymer (BCP). Neat PS-b-PEO ... -
Vertical silicon nanowire-based racetrack resonator optical sensor
( Springer Verlag , 2019 , Article)We propose a highly sensitive optical sensor which is built from silicon nanowires. The silicon nanowires are arranged to form a ring resonator. The silicon nanowires cladding and voids are filled with the analyte. The ... -
Vertical Silicon Nanowires Based Directional Coupler Optical Router
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)A fully complementary metal-oxide-semiconductor compatible optical router is demonstrated. The router structure is built using the silicon-organic hybrid platform, while its mechanism is based on the directional coupler ... -
Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf
( Blackwell Publishing Ltd , 2017 , Article)An assessment of vertical distribution, diel migration, taxonomic and functional diversity of fishes was carried out at offshore platforms in The (Arabian-Iranian-Persian) Gulf. Video footage was recorded at the Al Shaheen ... -
Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)About one third of the oil and gas extracted worldwide comes from offshore sources. There is currently thousands of large-scale oil and gas platforms spread across the seas and coastal oceans, from the North Sea to the ...