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decrease » decreased (Expand Search), increase (Expand Search)
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121
Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability
Published 2021“…Test results revealed that TWW slightly decreased concrete compressive and flexural strengths by 5%–12%, whereas it dramatically increased the porosity and chloride permeability by about 40%. …”
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Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
Published 2018“…More pronounced effect on membrane’s mechanical properties was observed due to compatibility of CNTs with PS matrix when compared to other factors (i.e., changes in the CNT aspect ratio). The water contact angle for PS membranes incorporated with commercial CNT sharply decreased from 73° to 53° (membrane hydrophilization) for membranes with 0.1 and 1.0 wt. % of CNTs, while for the same loading of produced CNTs the water contact angles for the membrane samples increased from 66° to 72°. …”
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Association between thermal responses, medical events, performance, heat acclimation and health status in male and female elite athletes during the 2019 Doha World Athletics Champi...
Published 2022“…Athletes (63%) who performed 5–30 days heat acclimation before the competition: ranked better (18±13 vs 28±13, p=0.009), displayed a lower peak T<sub>core</sub> (39.4°C±0.4°C vs 39.8°C±0.7°C, p=0.044) and larger in-race decrease in T<sub>skin </sub>(−1.4°C±1.0°C vs −0.9°C±1.2°C, p=0.060), than non-acclimated athletes. …”
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Effect of Surface Treatment of Halloysite Nanotubes (HNTs) on the Kinetics of Epoxy Resin Cure with Amines
Published 2020“…Nonisothermal differential scanning calorimetry (DSC) analyses were performed on epoxy nanocomposites containing 0.1 wt.% of P-HNT, A-HNT, and F-HNT. Quantitative analysis of the cure kinetics of epoxy/amine system made by isoconversional Kissinger–Akahira–Sunose (<i>KAS</i>) and <i>Friedman</i> methods made possible calculation of the activation energy (<i>E</i><sub>α</sub>) as a function of conversion (α). …”
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Exploring urban growth–climate change–flood risk nexus in fast growing cities
Published 2022“…Surveying showed that, between 1984 and 2020, urban areas grew by 777%, and bare lands decreased by 54.7%. In addition, Doha witnessed various climatic changes with a notable increase in air temperature (+ 8.7%), a decrease in surface wind speed (− 19.5%), and a decrease in potential evapotranspiration losses (− 33.5%). …”
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The Effect of Chitosan’s Addition to Resorcinol/Formaldehyde Xerogels on the Characteristics of Resultant Activated Carbon
Published 2019“…The total pore volume decreased from 1.040 to 0.238 cm3/g and the total pore surface area decreased from 912.3 to 554.4 m2/g. …”
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Coping strategies, optimism, and resilience factors associated with mental health outcomes among medical residents exposed to coronavirus disease 2019 in Qatar
Published 2023“…</p> <h2>Conclusion</h2> <p>It seems that avoidant coping styles can exacerbate depressive, anxiety, and stress symptoms in medical residents amidst the COVID-19 pandemic. Strategies promoting optimism, resilience, and approach coping styles can decrease the mental health burden of the pandemic on medical residents.…”
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Unraveling the future productivity burden of cardiovascular disease in Qatar: Investigating the modifiable risk factors control in type 2 diabetes
Published 2025“…AimsInsufficient risk factor control can lead to a loss of millions of productivity-adjusted life years (PALYs). …”
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131
Genetic Deletion of DNAJB3 Using CRISPR-Cas9, Produced Discordant Phenotypes
Published 2023“…Male and female KO and WT mice were fed a HF diet (45% kcal fat) for 16 weeks. …”
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How Tax Policies Affect Qatar's Foreign Direct Investment
Published 2024“…However, following the recent blockade of Qatar by other neighboring Gulf Cooperation Council (GCC) countries which went on for nearly three years, Qatar experienced decrease in foreign direct investment compounded by the recent global novel coronavirus disease 2019 (COVID-19) pandemic. …”
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OSRA Grant Cycle 5 Public Reports : Project Title: Coping with prenatal bereavement and perceived stress in current pregnancy: correlates to parental perception of the child and bo...
Published 2023“…<p dir="ltr">This study reveals a significant connection between prenatal bonding or attachment during pregnancy and various factors such as maternal age, anxiety, and stress, including those attributed to specific events like the COVID-19 pandemic. …”
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Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study
Published 2023“…Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' within a circular mini tube (D i = 1.0 mm, L = 330 mm) were analyzed. Experiments were carried out under steady-state and varying flow rates using 0.012–0.048 wt % of NFs and sodium hexametaphosphate (SHMP) and acetylacetone (ACAC) as surfactants (SFs). …”
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Part II.: Dissimilar friction stir welding of nickel titanium shape memory alloy to stainless steel – microstructure, mechanical and corrosion behavior
Published 2021“…Corrosion properties of the weld zone investigated in 3.5 wt. % NaCl solution showed moderately inferior corrosion resistance of dissimilar weld, compared to individual base metals, as characterized by the surface film impedance and corrosion current density. …”
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