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Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
منشور في 2023"…Incidence rate for severe, critical or fatal COVID-19 throughout the pandemic was 1.43 (95% CI 1.35 to 1.50) per 1000 person years. In the pre-omicron phase, first omicron wave, and combined phases, it was 2.01 (95% CI 1.90 to 2.13), 3.70 (95% CI 3.25 to 4.22) and 2.18 (95% CI 2.07 to 2.30) per 1000 person years, respectively. …"
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Correlation between delta-endotoxin and proteolytic activities produced by Bacillus thuringiensis var. kurstaki growing in an economic production medium
منشور في 2013"…This would allow low-cost selection of overproducing wild isolates or mutants in the screening programmes for the reduction of production cost, which is important from a practical point of view.…"
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Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model
منشور في 2016"…In fact, compared to the WHO's standards for PM10 for the 24-hour average and for the annual average concentration of 50 ug/m3 and 20 ug/m3 the Qatar's national air quality standards are far from these values. …"
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Biodegradable thermoplastic polyurethane composites as potential plating systems in pediatric facial fractures
منشور في 2022"…The H12MDI based thermoplastic polyurethane was prepared using 12% HS 50:50 BD-Poly D, L-lactide -co-glycolide, then the composites were prepared by the addition of 3 and 15% of hydroxyapatite, respectively. …"
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Pollution Characteristics of Particulate Matter (PM2.5 and PM10) and Constituent Carbonaceous Aerosols in a South Asian Future Megacity
منشور في 2020"…For PM10, the concentration of TC varied from 34.52 to 289.21 µg/m3 with an average of 181.50 ± 87.38 µg/m3 (for summer season) and it ranged between 44.04 and 300.02 µg/m3 with an average of 191.04 ± 87.98 µg/m3 (winter season), respectively. …"
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Thermal and mechanical characterization of injection moulded high density polyethylene/paraffin wax blends as phase change materials
منشور في 2014"…Elongation at break decreased as paraffin wax content increased, and Young's modulus decreased with wax content but in the case of blends with a 30vol. % of wax and more, brittle rupture occurred and no yield point was observed.…"
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Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy-combustion supercritical CO2 intercooled and reheated cycles under design and off-design condi...
منشور في 2022"…At off-design conditions with a power demand (PD) of 40% of the design load (50 MW), the thermal efficiency is decreased by 21.82% in DRC, 17.71% in ICC, 22.46% in PIC, and 13.60% in RHC. …"
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