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461
EEG-Based Semantic Vigilance Level Classification Using Directed Connectivity Patterns and Graph Theory Analysis
Published 2020“…Behaviorally, all subjects demonstrated vigilance decrement as reflected by the significant increase in response time and reduced accuracy. The strength and directionality of information flow in the connectivity network by RWTE/PDC and the GTA measures significantly decrease with vigilance decrement, p<0.05. …”
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462
Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions
Published 2021“…Using an MD<sub>dose</sub> as low as 10 mg/L attained a %<sub>hdem</sub> in the range of 93% - 4.3% for O/W mixtures with C<sub>oil</sub> < 2000 mg/L, which slightly decreased to ~90% for higher concentrations. The reported %R<sub>oil </sub>(p-value <0.05) was >90 ± 0.1 for tests carried out with pH 7 and C<sub>sur </sub>0.1 g/L and declined at higher pH and Csur to % 86.5 due to the increase in emulsion stability. …”
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463
Adaptation of a Mice Doppler Echocardiography Platform to Measure Cardiac Flow Velocities for Embryonic Chicken and Adult Zebrafish
Published 2019“…Theoretically, as the size of the imaged sample decreases, the frequency of the ultrasound transducer needed to image the sample increases. …”
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464
ROS-Mediated Autophagic Death in Glioblastoma Cells Upon Treatment by Human Recombinant Arginase I (Co)- PEG5000 [HuArgI (Co)-PEG5000]
Published 2021“…Addition of N-acetyl-cysteine (NAC); being a reactive oxygen species (ROS) scavenger, led to a significant decrease in the cytotoxicity of arginine deprivation to U251 and A172 cells, indicating that ROS generation reversed the cytotoxicity of arginine deprivation to GBM cells. …”
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masterThesis -
465
Deep Learning-Based Fault Diagnosis of Photovoltaic Systems: A Comprehensive Review and Enhancement Prospects
Published 2021“…The performance of the FDD method depends mainly on the quality of the extracted features including real-time changes, phase changes, trend changes, and faulty modes. …”
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466
Intracellular Ionic Strength Sensing Using NanoLuc
Published 2021“…Therefore, there is a demand for the development of sensitive tools for real-time monitoring of intracellular ionic strength. …”
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467
Privacy-Preserving Fog Aggregation of Smart Grid Data Using Dynamic Differentially-Private Data Perturbation
Published 2022“…We describe our differentially-private model with flexible constraints and a dynamic window algorithm to maintain the privacy-budget loss in infinitely generated time-series data. Our experimental results show a possible decrease in data perturbation error by 51.7% and 61.2% for smart meters and fog-computing data aggregators perturbed data, respectively, compared to the commonly used Gaussian mechanism.…”
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468
Grid integration of renewable energy in Qatar: Potentials and limitations
Published 2021“…A one-year dynamic analysis based on an hourly time step is conducted using the EnergyPLAN tool. …”
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469
Insights on the effect of water content in carburizing gas mixtures on the metal dusting corrosion of iron
Published 2022“…At later stage, the formation of oxide scale leads to an elevated concentration of H<sub>2</sub>O/OH molecules on the surface due to the decrease in Fe affinity to dissociate water. This results into blocking the Fe catalytic sites leading to lower C and O diffusion to the bulk of the sample.…”
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470
Inland Treatment of the Brine Generated from Reverse Osmosis Advanced Membrane Wastewater Treatment Plant Using Epuvalisation System
Published 2013“…The increasing of channel number or closed loop time is estimated for enhancing the treatment process and increasing the nutrient uptake. …”
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471
Factors affecting acoustically triggered release of drugs from polymeric micelles
Published 2000“…The measurements were based on the decrease in fluorescence intensity when drug was transferred from the micelle core to the aqueous environment. …”
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472
Unraveling the future productivity burden of cardiovascular disease in Qatar: Investigating the modifiable risk factors control in type 2 diabetes
Published 2025“…The financial value of PALYs was determined based on the gross domestic product (GDP) per full-time worker (i.e. US$80,573). The base-case model estimated the productivity burden of CVD, and interventional scenarios were simulated to assess potential gains resulting from improved control of modifiable risk factors, including reduced incidence of T2D, lower systolic blood pressure (SBP), decreased number of smokers, and reduced total cholesterol. …”
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473
Rapid mercury removal using living indigenous microalgal communities for water treatment applications
Published 2025“…Kinetic studies showed superior correlation with the pseudo-second-order model (R<sup>2</sup> > 0.996), with rate constants decreasing systematically from 767.5 to 216.0 g/mg·min as concentration increased, suggesting secondary chemical interactions may also contribute to the overall mechanism. …”
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474
Design and analysis of PV fed high-voltage gain DC-DC converter using PI and NN controllers
Published 2022“…The performance and analysis of the modified converter were described in detail with the help of both controllers. Here, 48 V is doubled to 400 V. By modifying the converter's parameters, its behavior is evaluated. …”
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475
Impact of trace noble metals on the catalytic performance of LaNiMgO towards methane dry reforming
Published 2024“…In durability measurements, and after 140h LaNiMgO-Rh exhibited slight decay in the CO<sub>2</sub> conversion from 77.6 % to 70.5%, the CH<sub>4</sub> conversion decreased from 72.3% to 64.2%. …”
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476
An Exploration of Smoking Patterns Among People with Serious Mental Illness Attending an Outpatient Clinic in Qatar
Published 2022“…Many countries worldwide have observed a decrease in the prevalence of tobacco smoking; however, the smoking rates among people with SMI have declined much less than in those without mental illness. …”
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477
Optical coherence tomography findings in autoimmune retinopathy
Published 2012“…Macular OCT showed reduced central macular and foveal thicknesses in 6 patients (mean thickness 143 ± 30 μm and 131 ± 29 μm respectively). …”
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478
Total hip arthroplasty: Evolution of the use of dual mobility cups in Lebanon
Published 2018“…Recurrent dislocation, being a major reason for revision total hip arthroplasty (THA), was found to decrease significantly using dual mobility cup (DMC) compared to standard cups (SC), and that in both primary and revision THA. …”
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479
Reducing terrorism with development ; the United Nations' new path. (c2009)
Published 2009Get full text
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masterThesis -
480
Crunching the numbers of food poisoning in Qatar
Published 2016“…The trend was generally decreasing during the investigated time period, which can be attributed to improvements in the food chain and sanitation in the country, they say.…”