College of Arts & Sciences: Recent submissions
Now showing items 1481-1500 of 3507
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CGST: Provably Secure Lightweight Certificateless Group Signcryption Technique Based on Fractional Chaotic Maps
( Institute of Electrical and Electronics Engineers , 2022 , Article)In recent years, there has been a lot of research interest in analyzing chaotic constructions and their associated cryptographic structures. Compared with the essential combination of encryption and signature, the signcryption ... -
Multistable dynamics and control of a new 4D memristive chaotic Sprott B system
( Elsevier , 2022 , Article)This work proposes and investigates the dynamic behavior of a new memristive chaotic Sprott B system. One of the interesting features of this system is that it has a bias term that can adjust the symmetry of the proposed ... -
Sustainable and long-term management of municipal solid waste: A review
( Elsevier , 2022 , Article)This study investigates landfill and incineration waste management strategies as potential and prevalent traditional methods of disposing of municipality-generated waste because of their cheapness and simplicity but requires ... -
Holistic health record for Hidradenitis suppurativa patients.
( Nature Research , 2022 , Article)Hidradenitis suppurativa (HS) is a recurrent inflammatory skin disease with a complex etiopathogenesis whose treatment poses a challenge in the clinical practice. Here, we present a novel integrated pipeline produced by ... -
Investigating the simultaneous removal of hydrocarbons and heavy metals by highly adapted Bacillus and Pseudomonas strains
( Elsevier , 2022 , Article)The status, content and availability of heavy metals and hydrocarbons are highly affected by weathering processes – particularly – in areas characterized by harsh conditions. Their concomitant removal by highly adapted ... -
First Impact Assessment of Genotoxic Components in the Qatari Marine Environment
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The Arabian Gulf is a semi-enclosed sea with very high evaporation and low discharge rates resulting in extreme saline and thermal conditions. Additionally the system is characterized by a weak hydrodynamic flushing resulting ... -
Computational Calculation of Midpoint Potential of Quinones in the A1 Binding Site of the Photosystem I
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Quinones are oxidants; colorants; electrophiles and involved in the electron transfer process of important biological functions such as photosynthesis, respiration, phosphorylation etc. In earth, photosynthesis is the main ... -
Phytoremediation of heavy metals using Qatari flora
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Phytoremediation is a natural phenomenon utilizing plants species to reduce or remove organic and inorganic pollutants from contaminated soil, water and sediment sources. Several studies were conducted to demonstrate the ... -
Developing, implementing and improving learning outcomes assessment in Qatar's public higher education
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Article)This study reports on the development and implementation of the Student Learning Outcomes Assessment process and the system implemented at Qatar University. This system consists of two phases, initiation and enhancement, ... -
Natural Dyes in Cyanide and Anion Sensing
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Cyanide is one of anions of concern due to its high toxicity. It causes death at a low dosage (2.6 mM) and the allowable level should be lower than 1.9 mmolar according to World health Organization (WHO). Cyanide contamination ... -
Genome Mining of Secreted Effectors of Fusarium Oxysporum, Fusarium Solani and Rhizectonia Solani
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Introduction: Of the various devastating diseases triggered by necrotrophic fungi, the diseases caused by following fungi Fusarium oxysporum, Fusarium solani and Rhizectonia solani are of particular economic significance ... -
Influence of anionic surface modifiers on the thermal stability and mechanical properties of layered double hydroxide/polypropylene nanocomposites
( Royal Society of Chemistry , 2015 , Article)Organo-layered double hydroxide/polypropylene (LDH/PP) nanocomposites were successfully synthesized via a solution blending method. As an attempt to improve the compatibility with hydrophobic PP, the LDH surface was modified ... -
BIAN N-heterocyclic gold carbene complexes induced cytotoxicity in human cancer cells via upregulating oxidative stress
( Asian Pacific Organization for Cancer Prevention , 2015 , Article)Background: Nanoparticles of gold and silver are offering revolutionary changes in the field of cancer therapy. N-heterocyclic carbene (NHC) metal complexes possess diverse biological activities and are being investigated ... -
Intercalative ion-exchange route to amino acid layered double hydroxide nanohybrids and their sorption properties
( Wiley-VCH Verlag , 2015 , Article)A soft chemical route to amino acid layered double hydroxide (LDH) nanohybrids was demonstrated on the basis of an intercalative ion-exchange reaction. Two different amino acids, phenylalanine and glutamic acid, were ... -
TiO2-pillared clays with well-ordered porous structure and excellent photocatalytic activity
( Royal Society of Chemistry , 2015 , Article)TiO2-pillared clays with well-ordered porous structures are successfully prepared via incorporating TiO2 nanosol particles into the clays, where empty octahedral sites are partially modified with divalent metal ions such ... -
General strategy to synthesize uniform mesoporous TiO2/Graphene/Mesoporous TiO2 sandwich-like nanosheets for highly reversible lithium storage
( American Chemical Society , 2015 , Article)Uniform oxide deposition on graphene to form a sandwich-like configuration is a well-known challenge mainly due to their large lattice mismatches and poor affinities. Herein, we report a general strategy to synthesize ... -
Highly ordered nanoporous carbon films with tunable pore diameters and their excellent sensing properties
( Wiley-VCH Verlag , 2015 , Article)Ordered porous carbon films with tunable pore diameters, immobilized with glucose oxidase (GOD) have been fabricated and employed for the construction of a biosensor for glucose molecules. The as-prepared porous films have ... -
Magnetic mesoporous nanospheres anchored with LyP-1 as an efficient pancreatic cancer probe
( Elsevier Ltd , 2017 , Article)Immobilization of a ligand that selectively interacts with cancer cells to nanomaterials can enhance their diagnostic and therapeutic efficiency. In this study, we firstly demonstrate the high expression of receptor for ... -
Freestanding eggshell membrane-based electrodes for high-performance supercapacitors and oxygen evolution reaction
( Royal Society of Chemistry , 2015 , Article)A type of freestanding, light-weight eggshell membrane-based electrode is demonstrated for supercapacitors and for oxygen evolution reaction (OER) catalysis. As a widely available daily waste, eggshell membranes have unique ... -
Nonenzymatic nitrogen-doped carbon nanofber-supported NiOx glucose sensor
( M Y U Scientific Publishing Division , 2017 , Article)The glucose electrooxidation reaction at NiOx nanoparticles loaded on a nitrogen-doped carbon nanofber (N-CNF)-modifed glassy carbon electrode (NiOx@N-CNF/GCE) in an alkaline medium was studied. The N-CNF was produced by ...