Showing 61 - 80 results of 265 for search '(((( 50 ppm decrease ) OR ( 50 a decrease ))) OR ((( 5 nn decrease ) OR ( 5 we decrease ))))', query time: 0.22s Refine Results
  1. 61

    Global fertility in 204 countries and territories, 1950–2021, with forecasts to 2100: a comprehensive demographic analysis for the Global Burden of Disease Study 2021 by Natalia V, Bhattacharjee

    Published 2024
    “…To capture time-series trends in CCF50 not explained by these covariates, we used a first-order autoregressive model on the residual term. …”
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  2. 62

    A Case Study in Qatar for Optimal Energy Management of an Autonomous Electric Vehicle Fast Charging Station with Multiple Renewable Energy and Storage Systems by Abdulla Al Wahedi (17115613)

    Published 2020
    “…The main objective is to fast-charge a minimum of 50 EVs daily, while the constraints are the intermittent and volatile nature of renewable energy sources, the stochastic nature of EV demand, local meteorological conditions and land space limitations. …”
  3. 63

    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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  4. 64

    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). …”
  5. 65

    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. …”
  6. 66

    A Quadratic Non-Isolated High Step-Up Single-Input Dual-Output DC–DC Topology Based on Coupled Inductors with Low Input Current Ripple by Vafa Marzang (17347048)

    Published 2025
    “…Finally, these features are proven based on a prototype at power rating and switching frequency of 500 W and 50 kHz, in which the highest efficiency is measured at 200 W and equals 96.4%.…”
  7. 67

    Hydrothermal and irreversibility numerical analysis of helical coil energy storage tank with nano-encapsulated PCMs: A comprehensive study with magnetic filled, Soret/Dufour, and m... by Mohammed Azeez Alomari (20482592)

    Published 2025
    “…<p dir="ltr">This paper numerically studied double diffusive free convection in a 2-D helical coil energy storage filled with nano-enhanced phase change material and a layer of porous foam. …”
  8. 68
  9. 69

    Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal... by Haidong, Wang

    Published 2020
    “…Global annual livebirths increased from 134·5 million (131·5–137·8) in 2000 to a peak of 139·6 million (133·0–146·9) in 2016. …”
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  10. 70

    Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal... by Haidong Wang (47381)

    Published 2020
    “…Global annual livebirths increased from 134·5 million (131·5–137·8) in 2000 to a peak of 139·6 million (133·0–146·9) in 2016. …”
  11. 71

    Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor, Izumi

    Published 2022
    “…The pCO2 in surface seawater averaged 458 ± 62 which was higher than the atmospheric value of 412 ppm. Hence, the Gulf was a source of CO2 to the atmosphere. pCO2 in seawater is controlled by TA relative to DIC as well as temperature and salinity. …”
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  12. 72

    Recyclable polyaspartate-coated magnetic nanoparticles for sustainable control of calcite and barite scales in oilfield operations by Abdelrahman T. Abdelaal (14674629)

    Published 2026
    “…Dynamic tube-blocking tests at 100 °C and 1000 psi further confirm effective scaling suppression for 60 min at 50 ppm, demonstrating that immobilization of PASP on a magnetic carrier preserves its intrinsic inhibitory function while enabling recyclable deployment not achievable with free PASP. …”
  13. 73

    Excess pCO<sub>2</sub> and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor Izumi (17337868)

    Published 2022
    “…The pCO<sub>2</sub> in surface seawater averaged 458 ± 62 which was higher than the atmospheric value of 412 ppm. Hence, the Gulf was a source of CO<sub>2</sub> to the atmosphere. pCO<sub>2</sub> in seawater is controlled by TA relative to DIC as well as temperature and salinity. …”
  14. 74

    Assessment Tools for Pulmonary Involvement in Patients with Ankylosing Spondylitis: Is Diaphragmatic Ultrasonography Correlated to Spirometry? by Rim Dhahri (21406871)

    Published 2023
    “…Thus, the present study aimed to assess the accuracy of diaphragm ultrasound compared to spirometry in the screening of restrictive pulmonary disorders in radiographic SpA patients. </p><h3>Methods</h3><p dir="ltr">We conducted a cross-sectional study of 50 patients with radiographic SpA, over six months. …”
  15. 75

    Trace element composition of size-fractionated suspended particulate matter samples from the Qatari Exclusive Economic Zone of the Arabian Gulf: the role of atmospheric dust by Oguz Yigiterhan (14151006)

    Published 2020
    “…Size-fractionated suspended particles were collected using net tows with mesh sizes of 50 and 200 µm to examine the composition of small- and large-size plankton populations. …”
  16. 76

    A combined experimental and computational study of the effect of electron irradiation on the transport properties of aromatic and aliphatic molecular self-assemblies by Y. Tong (18394389)

    Published 2022
    “…<p dir="ltr">Intermolecular cross-linking through electron irradiation is proven to be an effective tool to improve the mechanical and electronic properties of molecular self-assembled monolayers (SAMs), which is known to be a key player for material nanoarchitectonics. Here we study the effect of electron irradiation on the electronic transport properties of aromatic 5,5′-bis(mercaptomethyl)-2,2′-bipyridine (BPD; HS-CH2-(C5H3N)2-CH2-SH) and electron saturated 1-dodecanethiol (C12; CH3-(CH2)11-SH) molecules self-assembled on an Au (111) surface. …”
  17. 77

    Aortic valve function post-replacement of severe aortic stenosis by transcatheter procedure versus surgery: a systematic review and metanalysis by Charbel Abi Khalil (14150028)

    Published 2021
    “…However, it is unknown which procedure is associated with better post-procedural valvular function. We conducted a meta-analysis of randomized clinical trials that compared TAVR to sAVR for at least 2 years. …”
  18. 78
  19. 79

    Durability of Cardiometabolic Outcomes Among Adolescents After Sleeve Gastrectomy: First Study with 9-Year Follow-up by Wahiba Elhag (5245547)

    Published 2022
    “…</p> <h2>Results</h2> <p>Follow-up rates were 57.53%, 82.87%, 85.24%, 83.92%, and 83.33% at the five time points. The preoperative mean body mass index (BMI) (45.60 ± 6.50 kg/m2) decreased at year 1 (30.04 ± 4.96 kg/m2, P=0.001) and was maintained up to 9 years (30.20 ± 3.92 kg/m2, P = 0.001). …”
  20. 80

    Hyper-Hypo study: A Retrospective Observational Study of Neonatal Hypoglycemia Related to Maternal Hypertension by Thiruveni Ramkumar (17075051)

    Published 2023
    “…However, a sub-group comparison of neonates (with initial blood glucose <2.6 mmol/L) showed methyldopa to be marginally associated with a 2 mmol/L decrease from the mean initial blood glucose, mean 1.6 ± 0.5 mmol/L, and methyldopa (1.4 ± 0.5 mmol/L; p= .045). …”