Browsing Research Units by Title
Now showing items 4290-4309 of 4992
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The effect of acute ophiobolin A treatment on HO-mediated inflammatory processes
( SAGE Publications Ltd , 2017 , Article)Many microbial and plant-derived metabolites contribute to the production of inflammatory mediators and the expression of pro-inflammatory molecules. Ophiobolin A (OPA) is a fungal secondary metabolite produced by Bipolaris ... -
The effect of aluminum oxide on red blood cell integrity and hemoglobin structure at nanoscale
( Elsevier B.V. , 2019 , Article)Herein, we explored the interaction of Al2O3 NPs with RBCs and Hb to determine the effect of Al2O3 NPs on hemolytic activity and Hb denaturation. The percentage of hemolysis of extracts and direct contact assays triggered ... -
The Effect of Chronic Endurance Exercise on Serum Levels of MOTS-c and Humanin in Professional Athletes
( IMR Press Limited , 2022 , Article)Background: Humanin and the mitochondrial open reading frame of the 12S rRNA-c (MOTS-c) are mitochondrial encoded peptides involved in energy metabolism, cytoprotection, longevity, insulin sensitivity and their expression ... -
The effect of culture salinity on the harvesting of microalgae biomass using pilot-scale tangential-flow-filter membrane
( Elsevier Ltd , 2019 , Article)In this study, the effect of culture salinity (4–6% NaCl) on the harvesting of two microalgal strains (i.e., Picochlorum sp., and Tetraselmis sp.) was investigated using pilot-scale TFF membranes. The cultures of these two ... -
The effect of electro spinning parameters on polystyrene nano fiber morphology: Oil-water separation
( Desalination Publications , 2018 , Article)This manuscript reports optimized conditions necessary to prepare electro-spun nano fibers and microfibers using two different forms of polystyrene (PS) in dimethylformamide (DMF). We conducted a systematic and methodical ... -
The effect of site-specific spectral densities on the high-dimensional exciton-vibrational dynamics in the FMO complex
( Elsevier B.V. , 2017 , Article)The coupled exciton-vibrational dynamics of a three-site model of the FMO complex is investigated using the Multi-layer Multi-configuration Time-dependent Hartree (ML-MCTDH) approach. Emphasis is put on the effect of the ... -
The effect of sliding speed on the wear of steel-tool steel pairs
( Elsevier Ltd , 2016 , Article)This study examines the effect of sliding speed and surface temperature on the wear behavior of an unlubricated mild steel-tool steel contact pair using the pin-on-disc test. The operating conditions and contact pair are ... -
The effect of sulfur dioxide on the activity of hierarchical Pd-based catalysts in methane combustion
( Elsevier B.V. , 2017 , Article)SO2 poisoning of methane oxidation over alumina-supported, Pd@CexZr1−xO2 nanoparticle catalysts was systematically studied by means of advanced PhotoElectron Spectroscopy (PES) methods. The Pd@CexZr1−xO2 units were synthesized ... -
The Effect of Temperature on Inorganic Electron Transport Materials in HTM-Free Carbon-based PSCs
( Institute of Electrical and Electronics Engineers Inc. , 2024 , Conference Paper)Carbon electrode-based perovskite solar cells (c-PSCs) have attracted significant attention due to their cost-effectiveness and simplified structure, particularly when devoid of a hole transport material. However, the ... -
The effect of vacancy defects on the adsorption of methane on calcite 104 surface
( Elsevier Editora Ltda , 2021 , Article)Density functional theory calculations are used to study the effect of vacancy defects (ionic Ca and charge neutral CO3) on the adsorption properties of CH4 molecule on different calcite surfaces. Both types of vacancy ... -
The effectiveness of applying dynamic lane assignment at all approaches of signalized intersection
( Elsevier Ltd , 2017 , Article)Existing traffic control strategies at signalized intersections aim at the optimization of signal timing parameters while assuming fixed lane assignments to the movements at each approach. Such control results in the waste ... -
The Effects of Class IV Hemorrhagic Hypotensive Shock and Its Resuscitation with Fluids and Adjuvant Vasopressors or Cellular Energy Replenishment on the Splanchnic Microcirculation
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Traumatic exsanguination leading to class IV hemorrhagic shock as defined by the Committee on Trauma of the American College of Surgeons requires aggressive resuscitation with crystalloids and packed cells together with ... -
The efficacy of two household cleaning and disinfecting agents on Lentil (Lens culinaris Medik) and Faba bean (Vicia faba) seed germination
( Qatar University Press , 2021 , Poster)A germination test of Vicia faba and Lens culinaris seeds under the effect of bleach and vinegar was conducted for seven days, and the observations were recorded daily. The completely randomized design (CRD) was used to ... -
The emergence of new immigrant organisations in the USA: collective engagement
( Routledge , 2023 , Article)Immigrant organisations tend to engage with immigrant communities within a host country and their country of origin through various transnational activities. This study explores the emergence of immigrant organisations ... -
The emerging role of biochar in the carbon materials family for hydrogen production
( Elsevier , 2022 , Article Review)The energy crisis is at the top of global priorities. It left us with an option to progress with highly efficient materials for energy conversion, production, and storage systems. Carbon nano-allotropes have more accessible, ... -
The eutherian pseudoautosomal region
( S. Karger AG , 2016 , Article Review)The pseudoautosomal region (PAR) is a unique segment of sequence homology between differentiated sex chromosomes where recombination occurs during meiosis. Molecular and functional properties of the PAR are distinctive ... -
The Existing Initiatives to Establish Regional Security Arrangement in the Region Towards a Desirable Model
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2021 , Conference Paper)Security, stability, and cooperation are the missing links in our region. Over the last few decades, many attempts have been made to establish the security mechanism such as UNSCR 598, where requests UN Secretary- General ... -
The Fabrication of Halogen-Doped FeWO4 Heterostructure Anchored over Graphene Oxide Nanosheets for the Sunlight-Driven Photocatalytic Degradation of Methylene Blue Dye
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Rapid industrialization and urbanization are the two significant issues causing environmental pollution. The polluted water from various industries contains refractory organic materials such as dyes. Heterogeneous ... -
The Family Role of Young Saudi Men in Transforming Kingdom : Case Studies from the Regions
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2023 , Conference Paper)Women's empowerment, widespread entertainment, and a breakdown of gender segregation: in much of international reporting and academic literature, these exemplify the 'new Saudi Arabia' freed from the more restrictive ... -
The Future of Aerial Communications: A Survey of IRS-Enhanced UAV Communication Technologies
( IEEE , 2024 , Conference Paper)The advent of Intelligent Reflecting Surfaces (IRS) and Unmanned Aerial Vehicles (UAVs) is setting a new benchmark in the field of wireless communications. IRS, with their groundbreaking ability to manipulate electromagnetic ...