Showing 161 - 180 results of 894 for search '(( 5 ppm decrease ) OR ((( 50 ng decrease ) OR ((( 5 g decrease ) OR ( 5 a decrease ))))))', query time: 0.25s Refine Results
  1. 161

    Mn-ferrite based solar thermochemical water splitting cycle: A thermodynamic evaluation by Bhosale R.R.

    Published 2019
    “…allied with the Mn-ferrite was observed to be increased as the PO2 was decreased from 10?1 to 10?5 atm and the TH was upsurged from 1500 to 2100 K. …”
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  2. 162

    Qatar Culture Collection of Microalgae: A Sustainable Source for Biodiesel Production and Omega Fatty Acid Compounds by Bounnit, Touria

    Published 2016
    “…In terms of lipid contents, the results indicate a variety of the amounts. Nannochloris sp. showed the highest amount of total lipid (28.5%) followed by Chlorocystis sp. isolates with a total lipid amount of (19.5–21.5%) and later comes the Tetraselmis sp. strains with a total lipid content of (17.8–20.3%). …”
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  3. 163
  4. 164

    Corrosion behavior of API X100 steel material in a hydrogen sulfide environment by Okonkwo, Paul C.

    Published 2017
    “…The results indicate that the corrosion rate of API X100 steel decreases with increasing H2S bubbling time due to the increase in H2S concentration in 3.5% NaCl solutions. …”
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  5. 165

    HYPERTENSION MANAGEMENT AND PRESCRIBING PRACTICES IN PRIMARY HEALTHCARE SETTINGS IN QATAR: A MULTI-METHODS by ABDELKADER, NADA NABIL

    Published 2023
    “…Results: Between 2018 and 2021, the most prescribed antihypertensives were calcium channel blockers (CCBs) (22.9%, 26.5%, 32.5%, and 33.0% respectively). Angiotensin converting enzyme inhibitors prescribing decreased from 27.0% in 2017 to 18.0% in 2021 and thiazide diuretics prescribing decreased from 19.0% in 2017 to 8.0%. …”
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  6. 166

    Tailoring optical absorption in silicon nanostructures from UV to visible light: A TDDFT study by Hassan, Walid M.I.

    Published 2016
    “…(ii) The exciton binding energy is seen to decrease by approximately 45% from 0.67 eV to about 0.3 eV with length increase, for a nanostructure with a cross-section diameter of approximately 12 Å. …”
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  7. 167

    Adult Hospital Inpatient Experience in Qatar And Associated Factors: A Cross-Sectional Study by Salem, Noora Abdulla Awad

    Published 2020
    “…Also, recommendation of hospital showed a higher score in 2019 compared to 2017 (87.6% to 88.7%; F=8.5, p=0.004). …”
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  8. 168

    Urology Residents' Perspectives on the In-House On-Call Systems: A Study in an Accredited Academic Center by Khalil, Ibrahim A. and Ibrahim, Tarek and Aldeeb, Maya and Mohamed, Ahmed and Ben Salah, Rym and Aboumarzouk, Omar M. and Al-Naimi, Abdulla

    Published 2022
    “…Quality of life and education: We adopted a validated survey based on a 5-point Likert scale to assess the residents' perception of the transition to a 12-hour on-call system on their quality of life and education. …”
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  9. 169

    Sorption of benzene and naphthalene on (semi)-arid coastal soil as a function of salinity and temperature by NgueleuS.K.

    Published 2018
    “…The sorption of naphthalene was not affected by the change in salinity but increased by 18% when the temperature decreased from 35 to 5 �C. A sorption kinetic model was also applied to define the sorption behavior of benzene and naphthalene for the coastal soil collected in Qatar and the best fits were achieved with the Langmuir sorption isotherm.…”
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  10. 170

    Basophil-VAMP7 is a vital regulator of skin barrier integrity and chronic itch by Zhang, Wenhao

    Published 2025
    “…MethodsBasophil-specific VAMP7 knockout (Ba-V7KO) and control V7fl/fl mice were used to model chronic itch and AIF in AD. …”
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  11. 171

    Limiting the Rise in Core Temperature During a Rugby Sevens Warm-up With an Ice Vest. by Taylor, Lee

    Published 2019
    “…Athletes in VEST demonstrated a decrease in ΔTS (-1.59; ±0.72) and ΔTC (-1.63; ±0.73) pre- to post-warm-up, with a lower RPE post warm-up (-1.01; ±0.46), compared to CONTROL. …”
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  12. 172

    Optimization of performance and emission characteristics of CI engine fueled with Jatropha biodiesel produced using a heterogeneous catalyst (CaO) by Singh, A.

    Published 2020
    “…The heterogeneous transesterification delivered a yield of 81.6% at 5 wt% catalyst concentration and 12:1 methanol to oil molar ratio. …”
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  13. 173
  14. 174

    Effect of Carbonyl Iron Particle Types on the Structure and Performance of Magnetorheological Elastomers: A Frequency and Strain Dependent Study by Salem, Ayman M. H.

    Published 2022
    “…Each MRE composition have three different concentrations, which is 5%, 10%, and 20% by volume. The dynamic properties of the fabricated samples are tested by compression oscillations on a dynamic mechanical analyzer (DMA). …”
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  15. 175
  16. 176

    Preparation and characterization of chemically synthesized polyaniline–polystyrene blends as a carbon dioxide gas sensor by J., Bhadra

    Published 2013
    “…The SEM results of the above polymerized blends reflect the formation of spherical nanoparticles with diameter ranging from 50nm to 90nm with a decrease in PS concentration that facilitates the formation of clusters. …”
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  17. 177

    Synergistic effects and optimization of nitrogen and phosphorus concentrations on the growth and nutrient uptake of a freshwater Chlorella vulgaris by Alketife, Ahmed M.

    Published 2017
    “…1 and the maximum biomass produced was decreased more than three-fold to 0.5 g/L. The Box Behnken experimental design and response surface method were used to study the effects of the initial concentrations (P, N and C) on P and N removal efficiencies. …”
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  18. 178

    Post stroke health-related quality of life, stroke severity and function: A longitudinal cohort study by Hartley, Tasneem

    Published 2022
    “…The anxiety/depression domain showed a non-significant change (p = 0.378). A weak negative significant correlation existed between EQ5D VAS and mRS scores (rs = -0.362; p = 0.02); indicating a trend that HRQoL was not improving to the degree stroke severity decreased. …”
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  19. 179

    Enhanced photovoltaic performance with co-sensitization of a ruthenium(ii) sensitizer and an organic dye in dye-sensitized solar cells by Mehmood, Umer

    Published 2016
    “…Upon optimization, the device made of 0.3 mM N3 + 0.2 mM RK-1 yielded Jsc = 18.1 mA cm2, Voc = 888 mV, FF = 57.44, and ? = 9.23%. …”
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  20. 180

    THE ROLE OF QATAR COMMUNITY PHARMACISTS IN DEPRESSION CARE: A SURVEY OF ATTITUDES, PRACTICES AND PERCEIVED BARRIERS by SHAMI, RULA

    Published 2020
    “…Out of a possible score of 5, the mean score of attitudes was 3.41, with a standard deviation of 0.94. …”
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