Browsing College of Arts & Sciences by Title
Now showing items 660-679 of 3324
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Cryptanalysis of nonlinear confusion component based encryption algorithm
( Elsevier , 2021 , Article)Recently many substitution box based encryption algorithms ensuring privacy have been proposed. Many, chaotic map based S-boxes have been generated posing high nonlinearity and strong cryptographic properties. Encryption ... -
Crystal structure and spectral of new hydrazine-pyran-dione derivative: DFT enol↔hydrazone tautomerization via zwitterionic intermediate, hirshfeld analysis and optical activity studies
( Elsevier , 2020 , Article)A novel functionalized Schiff base derivative, (E)-3-(1-(2-(9H-fluoren-9-ylidene)hydrazineyl)ethylidene)-6-methyl-2H-pyran-2,4(3H)-dione, was synthesized via subsequent condensation/tautomerization processes in a high ... -
Crystal structure of (E)-2-{[(6-methoxy-1,3-benzothiazol-2-yl)imino]methyl}phenol
( International Union of Crystallography , 2015 , Article)The title compound, C15H12N2O2S, crystallizes in the orthorhombic space group Pna21, with two molecules in the asymmetric unit (Z′ = 2). Each molecule consists of a 2-hydroxy Schiff base moiety linked through a spacer ... -
Crystal structure of (E)-furan-2-carbaldehyde O-benzoyloxime
( International Union of Crystallography , 2017 , Article)In the title compound, C12H9NO3, the benzoate and furan rings are almost coplanar, making a dihedral angle of 11.68 (9)°. The twist angle between the –COO group and the benzene ring is only 2.79 (16)°. In the crystal, ... -
Crystal structure of the thalidomide analog (3aR∗,7aS∗)-2-(2,6-dioxopiperidin-3-yl)hexahydro-1H-isoindole-1,3(2H)-dione
( International Union of Crystallography , 2018 , Article)The title compound, C13H16N2O4, crystallizes in the monoclinic centrosymmetric space group, P21/c, with four molecules in the asymmetric unit, thus there is no crystallographically imposed symmetry and it is a racemic ... -
Crystal structure, spectral, thermal and experimental/computational investigation of Anthracen-benzo[d]thiazol-2-amine new Schiff base derivative
( Elsevier B.V. , 2021 , Article)The N-S-N-tridentate ((E)-N-(anthracen-9-ylmethylene)benzo[d]thiazol-2-amine product was made available by dehydration of 2-Aminobenzothiazole with 9-anthraldehyde under non-classical microwave condition, five-minute ... -
CS<inf>2</inf> mediated synthesis of corrosion-inhibiting mercaptobenzothiazole molecule for industrial zinc: Experimental studies and molecular dynamic simulations
( Elsevier B.V. , 2021 , Article)In this study, 2-mercaptobenzothiazole (MBT) was synthesized from a CS2 mediated formation scheme involving a catalyzed reaction between aminophenyl disulfide with metal sulfide under N2 atmosphere. The formation mechanism ... -
Cu-Ce-O catalyst revisited for exceptional activity at low temperature CO oxidation reaction
( Elsevier B.V. , 2018 , Article)In the present study, CexCu1−xO2−δ (x = 0, 0.3, 0.5, 0.8, 0.9, and 1) catalysts were synthesized using a facile and reproducible combustion method and were evaluated towards the CO oxidation (CO-OX) and CO preferential ... -
Cultivating Change: Perceptions and Attitudes of Agricultural Experts towards the Sustainable Development Goals
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)The agricultural sector is crucial to attaining the Sustainable Development Goals (SDGs) since it ensures food security, protects natural resources, and promotes rural livelihoods. However, the success of sustainable ... -
Cultivating Creativity of Graphic Design and Multimedia Students: The Perceptions of Arab Faculty and Experts
( SAGE Publications , 2021 , Article)While a consensus has emerged on the importance of creativity in graphic design and multimedia field, little systematic research has attempted to understand its facilitators or inhibitors in the graphic and multimedia ... -
Culture and the World Cup: The Case of Qatar
( Taylor and Francis Group , 2022 , Book chapter)The hosting of the World Cup is certainly a monumental achievement by the state of Qatar. Not only it brings the country to more international exposure, and helps it rip the potential economic benefits, but also it offers ... -
Culture, social contestation and Turkey's failed coup: The rivalry of social imaginaries
( SETA , 2016 , Article)This article explores the processes involved in the emergence of rival social imaginaries, as they develop in a cultural ecosystem, relating it to Turkey’s failed coup. To accomplish that, it unravels how people construct ... -
Curcumin a Colorimetric and Fluorimetric Cyanide Probe in Aqueous System and Living Cells
( Royal Society of Chemistry , 2019 , Article)Curcumin, 1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-hepta-diene-3,5-dione, is a natural product obtained from the rhizome of Curcuma longa. Curcumin has been demonstrated to be a strong antioxidant with anticancer properties ... -
Current biodiversity and biogeography trends of reef-building corals in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Coral reefs represent one of the most biologically and socio-economically important natural assets in the Arabian region, particularly in Qatar. Stress through increasing sea temperatures and salinities, growing development, ... -
Current injection 1.54 µm light-emitting devices based on Er-doped GaN/AlGaN multiple quantum wells
( OSA - The Optical Society , 2016 , Article)We report on the growth, fabrication and electroluminescence (EL) characteristics of light-emitting diodes (LEDs) based on Er-doped GaN (GaN:Er) and GaN/AlGaN multiple quantum well (MQW:Er) active layers. The LED structures ... -
Curved Beam Computed Tomography based Structural Rigidity Analysis of Bones with Simulated Lytic Defect: A Comparative Study with Finite Element Analysis
( Nature Publishing Group , 2016 , Article)In this paper, a CT based structural rigidity analysis (CTRA) method that incorporates bone intrinsic local curvature is introduced to assess the compressive failure load of human femur with simulated lytic defects. The ... -
Cyanobacteria, oil - And cyanofuel?
( Springer Netherlands , 2012 , Book chapter)Summary: Global warming, the global carbon cycle, and current and future global trading in carbon credits (the carbon market), are beginning to dictate radical changes in human behaviour. In this context, the cyanobacteria ... -
Cyanomatrix and Cyanofilm
( OMICS International , 2015 , Article)Cyanobacteria are diverse in their habitats, structure, and metabolism that can grow as unicellular or long filaments and secreting high molecular mass polymers (extracellular polymer substances, EPS), which can either be ... -
Cyclic AMP-Rap1A signaling activates RhoA to induce α2c-adrenoceptor translocation to the cell surface of microvascular smooth muscle cells
( American Physiological Society , 2012 , Article)Intracellular signaling by the second messenger cyclic AMP (cAMP) activates the Ras-related small GTPase Rap1 through the guanine exchange factor Epac. This activation leads to effector protein interactions, activation, ... -
Cyclic AMP-Rap1A signaling mediates cell surface translocation of microvascular smooth muscle α2C-adrenoceptors through the actin-binding protein filamin-2
( American Physiological Society , 2013 , Article)The second messenger cyclic AMP (cAMP) plays a vital role in vascular physiology, including vasodilation of large blood vessels. We recently demonstrated cAMP activation of Epac-Rap1A and RhoA-Rho-associated kinase ...