يعرض 1 - 20 نتائج من 61 نتيجة بحث عن '(( 50 ppm decrease ) OR ((( 50 we decrease ) OR ((( 5 wt decrease ) OR ( k nn decrease ))))))', وقت الاستعلام: 0.16s تنقيح النتائج
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    Ecotoxicological Assessment of Thermally- and Hydrogen-Reduced Graphene Oxide/TiO<sub>2</sub> Photocatalytic Nanocomposites Using the Zebrafish Embryo Model حسب Halema Al-Kandari (6316961)

    منشور في 2019
    "…Using the zebrafish embryo model, we investigated the environmental impacts of two thermally (RGOTi)- and hydrogen (H<sub>2</sub>RGOTi)-reduced graphene oxide/TiO<sub>2</sub> semiconductor photocatalysts recently employed in AOPs. …"
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    Insights Into SARS-CoV-2 S1-RBD-ACE2 Interaction Using Computational Tools and Membrane Microarray Platform حسب Angelin Mary Philip (21547421)

    منشور في 2024
    "…This revealed clustering of S1-RBD on membrane and more importantly, a depletion of the Omicron S1-RBD from membrane corrals, which was not seen with the WT S1-RBD. Further, treatment of cells with pitstop2, but not blebbistatin, resulted in a decrease in the S1-RBD depletion. …"
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    SARS‐CoV‐2 infection triggers more potent antibody‐dependent cellular cytotoxicity (ADCC) responses than mRNA‐, vector‐, and inactivated virus‐based COVID‐19 vaccines حسب Hadeel T. Zedan (12535521)

    منشور في 2024
    "…Notably, omicron infection showed reduced overall ADCC activity compared to WT SARS‐CoV‐2 infection. Although post‐mRNA vaccination BTI elicited high levels of binding and NAbs, ADCC activity was significantly reduced. …"
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    Impact of aluminium acetate particles size on the gelation kinetics of polyacrylamide‐based gels: Rheological and molecular simulation study حسب Ahmed Hamza (7224470)

    منشور في 2023
    "…The addition of bentonite at low crosslinker concentrations (0.5–1 wt.%) did not decrease the gel strength of 7 wt.% PAM/1 wt.% AlAc significantly. …"
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    Corrosion Evaluation of 316L Stainless Steel Exposed to CNT-Water Nanofluid حسب Dana Abdeen (18147583)

    منشور في 2019
    "…The electrochemical testing was performed at different CNTs loadings of 0.05, 0.1, 0.3 and 0.5 wt.% that were suspended in deionized water using the surfactant Gum Arabic (GA). …"
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    Thermally Conductive Polyethylene/Expanded Graphite Composites as Heat Transfer Surface: Mechanical, Thermo-Physical and Surface Behavior حسب Patrik Sobolčiak (4401364)

    منشور في 2020
    "…Moreover, the surface wettability of the HDPE/EG composite was enhanced by corona and RF plasma treatment as demonstrated by the increase in surface free energy from 28.5 mJ/m2 for untreated HDPE/EG to 55.5 and 54.5 mJ/m2 for HDPE/EG treated by corona and RF plasma, respectively. …"
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    Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles حسب Mariem Chamakh (14150481)

    منشور في 2021
    "…The samples were synthesized with different concentrations of hydrous ruthenium chloride of 2 wt%, 5 wt%, and 10 wt%, and then annealed at a temperature of 300 °C for 4 h to form the ruthenium oxide nanoparticles. …"
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    Enhancing the corrosion resistance of reinforcing steel under aggressive operational conditions using behentrimonium chloride حسب A. Bahgat Radwan (9631720)

    منشور في 2019
    "…Using only a 50 μmol L<sup>−1</sup> of BTC, we are able to measure an inhibition efficiency of 91, 79, and 71% in SCP solution with 3.5% NaCl at pH of 12.5, 10 and 7, respectively without showing any effect on the mechanical properties on the cured mortars. …"
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    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 حسب Oguz Yigiterhan (14151006)

    منشور في 2020
    "…As expected, we found that Ca was removed in Qatari dust; however, the concentrations (ppm) for most elements actually increased after leaching because the reduction in sample mass resulting from the removal of CaCO<sub>3</sub> by the leach was more important than the loss of metals solubilized by the leach. …"
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    Improved properties and salt rejection of polysulfone membrane by incorporation of hydrophilic cobalt-doped ZnO nanoparticles حسب Muneer M. Ba-Abbad (14151660)

    منشور في 2024
    "…The hybrid PSf membranes were fabricated with 0.5 wt. % of ZnO and doped ZnO NPs. These membranes were characterized using XRD, TGA, FESEM-EDX, and salt rejection performance. …"
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    Recyclable polyaspartate-coated magnetic nanoparticles for sustainable control of calcite and barite scales in oilfield operations حسب Abdelrahman T. Abdelaal (14674629)

    منشور في 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. …"
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    Adult appendicitis score versus Alvarado score: A comparative study in the diagnosis of acute appendicitis حسب Mohamed Said Ghali (16810713)

    منشور في 2023
    "…We aim to assess the adult appendicitis score (AAS) in the diagnosis prediction of AA.…"
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    The Impact of COVID-19 on the HIV Cascade of Care in Botswana – An Interrupted Time Series حسب Alice Sehurutshi (21842696)

    منشور في 2024
    "…In multivariable Poisson interrupted time series regression, the COVID-19 lockdown was associated with a 27% decrease in the monthly numbers of HIV tests (IRR 0.73, 95%CI 0.72–0.73), a 25% decrease in HIV positive tests (IRR 0.75, 95%CI 0.71–0.79), and a 43% reduction in ART initiations (IRR 0.57, 95%CI 0.55–0.60). …"
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    Enhanced thermoelectric properties of Bi<sub>2</sub>Te<sub>2.55</sub>Se<sub>0.45</sub> nanocomposites using eco-friendly Eocene Midra Shale palygorskite nanofillers: A sustainable... حسب Farah M. El-Makaty (14157090)

    منشور في 2025
    "…The EMS was obtained from one of Qatar’s substantial hydrocarbon reservoirs and mixed with the Bi2Te2.55Se0.45 alloy using ball-milling and hot-pressing techniques. Different wt% of EMS (0.025, 0.05, 0.1, 0.5, and 1) were considered. …"
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    Excess pCO<sub>2</sub> and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor Izumi (17337868)

    منشور في 2022
    "…Its values in the Gulf ranged from −50 to −310 μmol kg<sup>−1</sup> implying CaCO<sub>3</sub> precipitation. …"
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    Ablation of LAT2 Transporter Causes Intramuscular Glutamine Accumulation and Inhibition of Fasting‐Induced Proteolysis حسب Meritxell Espino‐Guarch (22565774)

    منشور في 2025
    "…</p><h3>Results</h3><p dir="ltr">LAT2KO mice experienced a notable reduction in body weight during fasting (WT:14% and LAT2KO:18%, <i>p</i> = 0.02), with a greater reduction in fat mass (0.5‐fold, <i>p</i> = 0.013) and a higher relative retention of muscle mass (1.3‐fold, <i>p</i> = 0.0003) compared with WT. …"
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    Investigating the Role of FOXA2 Transcription Factor in Adipogenesis Using Human-Induced Pluripotent Stem Cells حسب Hafsa Madni (22674428)

    منشور في 2025
    "…Furthermore, mature adipocytes differentiated from <i>FOXA2</i> KO derived MSCs showed elevated apoptosis indicated by the Annexin V staining, lipid accumulation detected by Oil Red O staining, and decreased expression of adipocyte maturation and functional genes utilizing the RT-PCR technique. …"