Browsing Research Units by Title
Now showing items 121-140 of 4830
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Ab initio molecular dynamics study of the interlayer and micropore structure of aqueous montmorillonite clays
( Elsevier Ltd , 2015 , Article)Ab initio molecular dynamics simulations have been performed to gain an understanding of the interfacial microscopic structure and reactivity of fully hydrated clay edges. The models studied include both micropore and ... -
Ab-Initio Molecular Dynamics investigation of gas adsorption on α-quartz (001) for CO2 enhanced natural gas recovery
( Elsevier B.V. , 2021 , Article)In this work, the interaction of methane and carbon dioxide on α-quartz with surface 001, with a siloxane termination (dense) surface was investigated by means of Ab-Initio Molecular Dynamics. Different temperatures were ... -
Aberrant DNA methylation of PTPRG as one possible mechanism of its under-expression in CML patients in the State of Qatar
( Wiley Open Access , 2020 , Article)Several studies showed that aberrant DNA methylation is involved in leukemia and cancer pathogenesis. Protein tyrosine phosphatase receptor gamma (PTPRG) expression is a natural inhibitory mechanism that is downregulated ... -
Aberrant driving behaviors as mediators in the relationship between driving anger patterns and crashes among taxi drivers: An investigation in a complex cultural context
( Taylor & Francis , 2023 , Article)Objective: Taxis have become an integrated component of Qatar’s urban transportation network due to their convenience, comfort, and flexibility. Qatar has seen an uptick in the demand for professional taxi drivers. Most ... -
Aberrant sialylation of a prostate-specific antigen: Electrochemical label-free glycoprofiling in prostate cancer serum samples
( Elsevier B.V. , 2016 , Article)Electrochemical detection method allowing to detect prostate-specific antigen (PSA), a biomarker of prostate cancer (PCa), with PSA glycoprofiling was applied in an analysis of PCa serum samples for the first time. ... -
Abiotic stress applied to Tetraselmis subcordiformis reveals enhanced metabolic responses and increased production of Omega-3 fatty acids: A Metabolomic approach
( Elsevier , 2023 , Article)The appeal of high value algal metabolites is certain due to their sustainability, low energy and space requirements. Yet, commercial-level production of such products is limited and has the potential to be enhanced. In ... -
Abrin inactivating mitochondrial ribosome induced anther abortion in cotton CMS line LD6A by damaging mitochondrial membrane structure
( Elsevier , 2023 , Article)Cytoplasmic male sterile (CMS) system has extensively been exploited for hybrid vigor in plant breeding programs. However, its application in many crops is limited due to poor understanding of molecular mechanism of fertility ... -
Abrogation of ORF8-IRF3 binding interface with Carbon nanotube derivatives to rescue the host immune system against SARS-CoV-2 by using molecular screening and simulation approaches.
( BMC , 2024 , Article)The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has led to over six million deaths worldwide. In human immune system, the type 1 interferon (IFN) pathway plays a crucial role in fighting viral infections. However, ... -
Absorption of CO2 in aqueous blend of methyldiethanolamine and arginine
( John Wiley and Sons Ltd , 2020 , Article)The objective of this research is to study for the first time the effect of adding l-arginine (Arg) amino acid on the solubility of carbon dioxide in aqueous solution of N-methyldiethanolamine (MDEA). The study was carried ... -
AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite
( Taylor and Francis Ltd. , 2022 , Article)Metal–organic frameworks (MOFs) are a class of materials that are increasingly used for the detection and separation of gases. This article presents the influence of gamma radiation on the dielectric properties of a ... -
Accelerated weathering effects on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV/TiO2 nanocomposites
( MDPI AG , 2020 , Article)The effect of accelerated weathering on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV-based nanocomposites with rutile titanium (IV) dioxide (PHBV/TiO2) was investigated. The accelerated weathering test ... -
Accelerating the Transition to a Circular Economy for Net-Zero Emissions by 2050: A Systematic Review
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Achieving net-zero emissions by 2050 will require tackling both energy-related and non-energy-related GHG emissions, which can be achieved through the transition to a circular economy (CE). The focus of climate change ... -
Accumulation of Trace Metals, Petroleum Hydrocarbons, and Polycyclic Aromatic Hydrocarbons in Marine Copepods from the Arabian Gulf
( Springer Verlag New York Inc , 2001 , Article)In this study, zooplankton samples were collected from the coastal waters of Qatar during winter and summer 1998 to assess the impact of growing industrialization on the bioaccumulation of trace metals, total petroleum ... -
Accuracy and Coverage Assessment of House units Frame ,using Post-Frame update survey (PFS) Method
( The Social and Economic Survey Research Institute, Qatar University , 2015 , Conference Paper & Presentation)Basically, the PFS is an independent survey that repeats frame update. The survey results are compared with house units frame results, permitting estimates to be made of : coverage and content errors. Coverage errors ... -
Achieve high ductility and strength in an Al-Mg alloy by severe plastic deformation combined with inter-pass annealing
( Elsevier B.V. , 2014 , Article)Metallic materials processed by severe plastic deformation generally possess very high strength but a rather low uniform elongation, usually <5%. In the present Al-7Mg alloy processed by room temperature equal channel ... -
Achieving Green Building in Qatar through Legal and Fiscal Tools
( Canadian Center of Science and Education (CCSE) , 2019 , Article)This article considers how the advancement of green building can provide multiple dividends in Qatar by enabling reduced resource consumption and producing less waste. LEED® certified “green” buildings consume between 10% ... -
Acrylic acid plasma treatment of polypropylene nonwoven fabric [Włókniny polipropylenowe poddane obróbce plazmowej z zastosowaniem kwasu akrylowego]
( Institute of Biopolymers and Chemical Fibres , 2016 , Article)Nowadays hydrogel materials are being used in medical practice for wound dressing purposes. Hydrogel/textile composites can be formed to increase the mechanical strength and handling capability of hydrogel materials. ... -
Activation and Contraction of Human “Vascular” Smooth Muscle Cells Grown From Circulating Blood Progenitors
( Frontiers Media , 2021 , Article)Blood outgrowth smooth muscle cells (BO-SMCs) offer the means to study vascular cells without the requirement for surgery providing opportunities for drug discovery, tissue engineering, and personalized medicine. However, ... -
Activation Dynamics and Immunoglobulin Evolution of Pre-existing and Newly Generated Human Memory B cell Responses to Influenza Hemagglutinin.
( Elsevier , 2019 , Article)Vaccine-induced memory B cell responses to evolving viruses like influenza A involve activation of pre-existing immunity and generation of new responses. To define the contribution of these two types of responses, we ... -
Active and stable methane oxidation nano-catalyst with highly-ionized palladium species prepared by solution combustion synthesis
( MDPI AG , 2018 , Article)We report on the synthesis and testing of active and stable nano-catalysts for methane oxidation. The nano-catalyst was palladium/ceria supported on alumina prepared via a one-step solution-combustion synthesis (SCS) method. ...