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Showing 201 - 220 results of 722 for search '(((( 50 a decrease ) OR ( 50 a increase ))) OR ((( 50 ppm decrease ) OR ( 5 ng decrease ))))', query time: 0.20s Refine Results
  1. 201

    Unveiling final-year students and new graduates’ concerns, preparedness, and learning experiences during the pandemic in Qatar: A cross-sectional survey by Yasin M. Yasin (14779381)

    Published 2023
    “…While 61 % of new graduates felt well-prepared in their nursing skills, and 87 % felt confident, less than half of the students still in their final year of education felt prepared or confident. Increased stress and a perceived impact on education quality were reported due to changes in learning modalities. …”
  2. 202

    A novel hybrid photovoltaic/thermal-fuel cell system for efficient hydrogen, heat, and power generation: Techno-economic and environmental evaluation by Bashar Shboul (22927252)

    Published 2025
    “…The P<sub>PVT-FC</sub> dropping from 2.0 kW to 0.75 kW and the η<sub>PVT-FC</sub> 16%–8%, while the Q<sub>PVT-FC</sub> remains stable at ∼689.5 kW. Increasing the coolant outlet temperature and electrolyzer efficiency enhances m<sub>PVT-FC</sub> and η<sub>PVT-FC</sub> reaching a maximum efficiency of 18.06% at a 0.5 kg/s flow rate. …”
  3. 203

    SARS‐CoV‐2 infection and effects of age, sex, comorbidity, and vaccination among older individuals: A national cohort study by Mai A. Mahmoud (9620657)

    Published 2023
    “…</p><h3>Methods</h3><p dir="ltr">A national retrospective cohort study was conducted in the population of Qatar aged ≥50 years between February 5, 2020 and June 15, 2023. …”
  4. 204

    Comparative Effectiveness and Safety of Direct Oral Anticoagulants in Low Body Weight Patients with Atrial Fibrillation: A Systematic Review and Meta-analysis by Mohamed Nabil Elshafei (9960500)

    Published 2024
    “…DOAC analogs were associated with increased stroke-related events, composite outcome, and mortality in low body weight patients compared to non-low body weight patients (odds ratio [OR] 1.50, 95% confidence interval [CI] 1.17–1.92), (OR 1.55, 95% CI 1.29–1.86), (OR 2.92, 95% CI 1.87–4.58), respectively. …”
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    High flow nasal oxygen (HFNO) in the treatment of COVID-19 infection of adult patients from – An emergency perspective: A systematic review and meta-analysis by Nabil, Shallik

    Published 2023
    “…HFNO was associated with a significant decrease in mortality and intubation rates (0.28 (95% CI; 0.19, 0.39) and 0.28 (95% CI; 0.18, 0.41), respectively). …”
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  7. 207

    High flow nasal oxygen (HFNO) in the treatment of COVID-19 infection of adult patients from – An emergency perspective: A systematic review and meta-analysis by Nabil Shallik (15900256)

    Published 2023
    “…HFNO was associated with a significant decrease in mortality and intubation rates (0.28 (95% CI; 0.19, 0.39) and 0.28 (95% CI; 0.18, 0.41), respectively). …”
  8. 208

    Automated inferior vena cava distensibility index for assessing fluid responsiveness in ventilated patients after cardiac surgery: a prospective pilot comparative study by Amr Salah Omar (17151028)

    Published 2025
    “…FR was defined as an increase in cardiac output (CO) by more than 10% after receiving a fluid challenge. …”
  9. 209

    Evaluating the invasive plant, <i>Prosopis juliflora</i> in the two initial growth stages as a potential candidate for heavy metal phytostabilization in metalliferous soil by Kamal Usman (11482990)

    Published 2019
    “…<p dir="ltr">Anthropogenic activities leads to increase in toxic metals in the environment. The toxicity of Cd, Cr and Pb to P. juliflora were tested in agar media; Seeds germinated in 25, 50 and 100 mg/L Pb; 5, 10 and 20 mg/ 10 L Cd; and 10 mg/L Cr were mostly unaffected. …”
  10. 210

    Global smart cities classification using a machine learning approach to evaluating livability, technology, and sustainability performance across key urban indices by Aya Hasan Alkhereibi (17151070)

    Published 2025
    “…</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Cleaner Production<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jclepro.2025.145394" target="_blank">https://dx.doi.org/10.1016/j.jclepro.2025.145394</a></p>…”
  11. 211

    Three-dimensional evaluation of pulp chamber volume and dimensions across skeletal and dental malocclusions using CBCT: a retrospective cross-sectional study by Raidan Ba-Hattab (17773230)

    Published 2025
    “…</p><h3 dir="ltr">Materials and methods</h3><p dir="ltr">A retrospective, cross-sectional analysis was conducted using CBCT scans from 184 Jordanian adults(mean age 24.22 ± 7.50 years). …”
  12. 212

    Application of Cyanobacteria (Roholtiella sp.) Liquid Extract for the Alleviation of Salt Stress in Bell Pepper (Capsicum annuum L.) Plants Grown in a Soilless System by Adewale Suraj Bello (18891643)

    Published 2021
    “…A soilless water experiment was carried out in a greenhouse where bell pepper seedlings were grown under five salt concentrations (0, 50, 200, 150, and 200 mM of NaCl). …”
  13. 213

    A kinetic evaluation of nutrient and organic matter removal in greywater for green Walls: Assessing the performance of Mineral-Based, Organic, and Waste-Derived plant support media by Shaheeda Marakkar Anangadan (19239607)

    Published 2024
    “…<p dir="ltr">Greywater recycling provides a means to address rising water demand with reduced environmental impact due to its abundance and lightly polluted nature. …”
  14. 214

    Global burden of 87 risk factors in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019 by Christopher J L Murray (13580635)

    Published 2020
    “…</p><h2>Other Information</h2> <p> Published in: The Lancet<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/s0140-6736(20)30752-2" target="_blank">https://dx.doi.org/10.1016/s0140-6736(20)30752-2</a></p>…”
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    Co-production of high density biomass and high-value compounds via two-stage cultivation of Chlorella vulgaris using light intensity and a combination of salt stressors by Eman A. El-fayoumy (17788952)

    Published 2023
    “…Cultures supplemented with 5 g L<sup>−1</sup> NaCl / 5 g L<sup>−1</sup> MgCl<sub>2</sub> / 5 g L<sup>−1</sup> CaCl<sub>2</sub> and high light intensity exposure attained consistently high carbohydrate content (52.71 ± 2.50%). The combination of 7.5 g L<sup>−1 </sup>NaCl / 7.5 g L<sup>−1 </sup>MgCl<sub>2</sub> also resulted in a marked increase in the protein content (35.32 ± 2.20%) and total carotenoids (0.31 ± 0.03 μg mL<sup>−1</sup>) as compared to the Controls. …”
  18. 218

    A urokinase-activated recombinant diphtheria toxin targeting the granulocyte-macrophage colony-stimulating factor receptor is selectively cytotoxic to human acute myeloid leukemia... by Abi-Habib, Ralph J.

    Published 2004
    “…Novel agents to treat acute myeloid leukemia (AML) are needed with increased efficacy and specificity. We have synthesized a dual-specificity fusion toxin DTU2GMCSF composed of the catalytic and translocation domains of diphtheria toxin (DT) fused to the granulocyte-macrophage colony-stimulating factor (GM-CSF) in which the DT furin cleavage site 163RVRRSV170 is modified to a urokinase plasminogen activator (uPA) cleavage site 163GSGRSA170, termed U2. …”
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  19. 219

    Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy‐combustion supercritical CO<sub>2</sub> intercooled and reheated cycles under design and off‐d... by Wahib A. Al‐Ammari (18877408)

    Published 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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