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161
Evaluation of highly active and stable SiO<sub>2</sub> supported Fe-based catalysts for the catalytic methane decomposition into COx free hydrogen and CNTs
منشور في 2023"…Moreover, the catalytic activity in terms of methane conversion, methane decomposition rate, growth activities as well as carbon yields increased with an increase in the Fe loading. At an operating temperature of 650 °C and a GHSV of 8000 h<sup>−1</sup>, the 75FS catalyst, with a composition of 75 wt%/SiO<sub>2</sub>, demonstrated the highest methane decomposition rate of 0.75gCH<sub>4</sub>/g-cat.h among the investigated catalysts. …"
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162
Disrupted harvests: how Ukraine – Russia war influences global food systems – a systematic review
منشور في 2024"…This systematic study delves into this intricate interaction, examining scholarly literature to determine the magnitude and complexities of the war’s impact on global agri-food systems. Utilizing a rigourous methodology, we screened 236 articles from the Web of Science database as of March 2023, narrowing the corpus to 62 significant publications that meet comprehensive eligibility criteria. …"
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163
Drive‐up INR testing and phone‐based consultations service during COVID‐19 pandemic in a pharmacist‐lead anticoagulation clinic in Qatar: Monitoring, clinical, resource utilization...
منشور في 2023"…</p> <h3> Objective</h3> <p>To evaluate the impact of transitioning from clinic-based anticoagulation management services to drive-up and phone-based services during COVID-19 pandemic in Qatar.…"
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164
Biomolecular alterations in acute traumatic brain injury (TBI) using Fourier transform infrared (FTIR) imaging spectroscopy
منشور في 2021"…<p dir="ltr">Acute injury is one of the substantial stage post-traumatic brain injury (TBI) occurring at the moment of impact. Decreased metabolism, unregulated cerebral blood flow and direct tissue damage are triggered by acute injury. …"
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165
Colloid retention and mobilization mechanisms under different physicochemical conditions in porous media: A micromodel study
منشور في 2021"…However, for hydrophobic colloids, changes in solution chemistry significantly increase colloid retention where the colloid interaction become attractive with the increase in ionic strength and decrease in pH values. …"
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166
Cross-Cultural Awareness and Attitudes Toward Threatened Animal Species
منشور في 2022"…<p dir="ltr">The preservation of our planet’s decreasing biodiversity is a global challenge. Human attitudes and preferences toward animals have profound impacts on conservation policies and decisions. …"
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167
Proteome analysis of Candida albicans cell wall mutants. (c2011)
منشور في 2011احصل على النص الكامل
احصل على النص الكامل
masterThesis -
168
Effects of ethanol addition to diesel–biodiesel blends on the CI engine characteristics
منشور في 2024"…Ethanol addition has a more significant impact, with an increase in engine power of 16% at 1700 rpm and 13% at 2500 rpm for 2.5% and 5% ethanol blends, respectively. …"
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169
Advanced direct air capture of CO<sub>2</sub> using air conditioning systems: a life cycle assessment
منشور في 2025"…The integrated system exhibits significantly reduced environmental impacts compared to a standalone DAC unit. …"
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170
The impact of board gender diversity on the Gulf Cooperation Council’s reporting on sustainable development goals
منشور في 2024"…<p dir="ltr">The topic of gender diversity on corporate boards is becoming increasingly significant globally, particularly in the Gulf Cooperation Council (GCC) region. …"
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171
Shared Clean Mobility Operations for First-Mile and Last-Mile Public Transit Connections: A Case Study of Doha, Qatar
منشور في 2022"…Moreover, adding the carpooling option can significantly decrease the number of relocations operations at a minimal impact on the commuters’ trip performance.…"
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172
Role of family in supporting children with mental disorders in Qatar
منشور في 2023"…<h3>Background</h3><p dir="ltr">Mental disorders can significantly impact children's lives and affect their emotional, cognitive, and behavioral development. …"
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173
Stemming cardiovascular diseases in Qatar
منشور في 2015"…<p>A new study by researchers at the Weill Cornell Medical College in New York and in Doha, Qatar, suggests that public health strategies could have a major impact on the incidence of cardiovascular diseases in the Qatari population.…"
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174
Influence of Casting Solvents on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Polysulfone Membranes
منشور في 2021"…Furthermore, the study declares that with the increase in pressure, the permeability and selectivity values drop for CF and THF. …"
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175
Ecotoxicological Assessment of Thermally- and Hydrogen-Reduced Graphene Oxide/TiO<sub>2</sub> Photocatalytic Nanocomposites Using the Zebrafish Embryo Model
منشور في 2019"…However, both nanocomposites should be used with caution at concentration higher than the NOEC (400 mg/L), in particular RGOTi, which significantly (i) caused pericardial and yolk sac edema; (ii) decreased the hatching rate, locomotion, and hematopoietic activities; and (iii) affected the heart rate. …"
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176
Strengthening of thin reinforced concrete slabs with CFRP laminates
منشور في 2016احصل على النص الكامل
article -
177
Synthesis and analysis of silver–copper alloy nanoparticles of different ratios manifest anticancer activity in breast cancer cells
منشور في 2020"…Furthermore, we observed the cell death pathway by the apoptosis marker Annexin-V which showed non-significant results, while the exposure of AgCu-NP in MCF-7 cells leads to toxicity and also caused significant increase in MMP-9 level, which suggests the cell death may be associated with other pathways such as autophagy and oxidative stress related.…"
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178
Psychological inoculation against problematic social media use among adolescents: An experimental study
منشور في 2025"…The passive inoculation group showed a significant decrease in deception only. No changes were observed in the control group. …"
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179
Hypoxic Stress Induces Complement-Mediated Lysis of Mesenchymal Stem Cells by Downregulating Factor H and CD59
منشور في 2024"…Severe hypoxia found to decrease the survival chances of MSCs after transplantation; however, little is known about the impact of severe hypoxia on modulating the complement system activity and its effect on MSCs survival. …"
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180
Feasibility of a group-based laughter yoga therapy on anxiety and happiness among community-dwelling older adults: A quasi-experimental study
منشور في 2024"…</p><p><br></p><h3>Results</h3><p dir="ltr">A statistically significant decrease in anxiety level among the study group compared to the control group (Pre = 16.68 (7.35), immediate = 6.65 (2.89), post three-month = 7.68 (2.75), p=<0.001 and effect size = 0.715). …"