يعرض 1 - 20 نتائج من 72 نتيجة بحث عن '(( 5 _ decrease ) OR ((( 50 _ decrease ) OR ( 19 a decrease ))))~', وقت الاستعلام: 0.15s تنقيح النتائج
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    An evidence base for school health policy during the covid-19 pandemic حسب Badran, S.

    منشور في 2021
    "…Objective: Children represent a small fraction of confirmed COVID-19 cases, with a low case fatality rate (CFR). …"
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    The impact of COVID-19 pandemic on tobacco use: A population-based study حسب Alomari, Mahmoud A.

    منشور في 2023
    "…Conclusions Changes in the SH during COVID-19 have been reported in about 50% of participants who smoke tobacco, with a more reported decrease than increase in use. …"
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    Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

    منشور في 2023
    "…Objective To assess the evolution of COVID-19 severity and fatality in a unique setting that consistently applied, throughout the pandemic, rigorous and standardised criteria for defining severe COVID-19 outcomes. …"
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    Global age-sex-specific mortality, life expectancy, and population estimates in 204 countries and territories and 811 subnational locations, 1950–2021, and the impact of the COVID-... حسب Schumacher, Austin E.

    منشور في 2024
    "…Uncertainty intervals (UIs) were calculated for every metric using the 25th and 975th ordered values from a 1000-draw posterior distribution. Findings: Global all-cause mortality followed two distinct patterns over the study period: age-standardised mortality rates declined between 1950 and 2019 (a 62·8% [95% UI 60·5–65·1] decline), and increased during the COVID-19 pandemic period (2020–21; 5·1% [0·9–9·6] increase). …"
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    Effect of BPA on CYP450s expression, and nicotine modulation, in fetal rat brain حسب Mohammad H., Merii

    منشور في 2022
    "…Results showed a BPA-induced significant decrease in CYP1B1 expression levels at GD14 (p = 0.001), and CYP19A1 (aromatase) expression at both mid- and late-stage development (p < 0.001). …"
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    Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor حسب Al Ketife, Ahmed MD

    منشور في 2017
    "…At 22% CO2 the Rc and μ decreased by around an order of magnitude, and nutrient removal also decreased to 79% and 50% for N and P, respectively. …"
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    Synthesis and characterisation of Co2+-incorporated ZnO nanoparticles prepared through a sol-gel method حسب Ba-Abbad, Muneer M.

    منشور في 2016
    "…The band gap of the Co2+-doped ZnO samples decreased from 3.19 to 2.66 eV as the content of dopant Co2+ increased from 0.0 to 1.0 wt.%. …"
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