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Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
منشور في 2021"…<p dir="ltr">Electrospinning technique was employed to fabricate composite nanofibers/nanoparticles of sulfonated polyether ether ketone, polyvinylpyrrolidone, and ruthenium oxide (sPEEK/PVP/RuO<sub>2</sub>). 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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The role of objectively recorded smartphone usage and personality traits in sleep quality
منشور في 2023"…<h3>Purpose</h3><p dir="ltr">The proliferation of smartphones, accompanied by internet facilities, has contributed to a decrease in sleep quality over the last decades. It has been revealed that excessive internet usage impacts the physical and mental health of smartphone users, while personality traits (PT) could play a role in developing internet addictions and preventing their negative effects. …"
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Hypoglossal nerve stimulation for obstructive sleep apnea in adults: An updated systematic review and meta-analysis
منشور في 2024"…Patient-reported outcomes showed decreased Epworth Sleepiness Scale (ESS) scores by −5.02 (short term) and −4.90 (long term) and improved Functional Outcomes of Sleep Questionnaire (FOSQ) scores by 3.58 (short term) and 3.28 (long term). …"
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Sleeping habits during COVID-19 induced confinement: A study from Jordan
منشور في 2021"…Majority of the participants (53–59%) reported an increase in most of the sleep parameters except a decrease (49.1%) in daytime sleep. …"
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Long-Haul Northeast Travel Disrupts Sleep and Induces Perceived Fatigue in Endurance Athletes
منشور في 2018"…After this time, sleep duration returned to baseline for several days until it was very likely decreased on the night prior to competition (-1.2 ± 1.0 h; 1.18; ±0.93). …"
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Studies on Natural Extracts as Inhibitors of Mild Steel Corrosion in 1M HC1 Solution
منشور في 2011احصل على النص الكامل
doctoralThesis -
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Self-Reported Sleep and Exercise Patterns in Patients with Schizophrenia: a Cross-Sectional Comparative Study
منشور في 2019"…Patients with schizophrenia have shown abnormal sleep patterns and decreased physical activity that were linked to their psychopathology and physical health. …"
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The Effect of Experimental Recuperative and Appetitive Post-lunch Nap Opportunities, With or Without Caffeine, on Mood and Reaction Time in Highly Trained Athletes
منشور في 2021"…<h3>Purpose</h3><p dir="ltr">To investigate the effects of placebo (PLA), 20 min nap opportunity (N20), 5mg·kg<sup>−1</sup> of caffeine (CAF), and their combination (CAF+N20) on sleepiness, mood and reaction-time after partial sleep deprivation (PSD; 04h30 of time in bed; <i>study 1</i>) or after normal sleep night (NSN; 08h30 of time in bed; <i>study 2</i>).…"
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Do near-bedtime usage of smartphones and problematic internet usage really impact sleep? A study based on objectively recorded usage data
منشور في 2023"…</p><h3> Results</h3><p dir="ltr">The multivariate linear regression showed that the increase in PIU (β = −0.231, p < 0.001) and smartphone usage two hours before sleep (β = −0.246, p < 0.001) led to decrease in sleep duration. …"
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Deep learning-based modeling of land use/land cover changes impact on land surface temperature in Greater Amman Municipality, Jordan (1980–2030)
منشور في 2024"…This study aimed to model past, present, and future LULCC on Land Surface Temperatures in the Greater Amman Municipality (GAM) in Jordan between 1980 and 2030. …"
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The Triple “S” Impact of COVID-19: Nationwide Evidence of the Impact of the Stress Associated With Restrictive Measures on Substance Use, Sleep, and Social Connectedness in Qatar...
منشور في 2023"…Of tobacco users in our sample, 36% reported increased tobacco use since the start of home confinement, while 41.6% of alcohol users reported decreased alcohol use. Concerning sleep, 46.1% reported an increase in average sleep duration per day (0.77 h mean increase, 95% CI: 0.66-0.88, P<0.001), and a third of participants reported poorer sleep quality. …"
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Corrosion Inhibition of Mild Steel in 2M HCl Using Aqueous Extract of Eggplant Peel
منشور في 2011"…The objective of this study was to investigate the inhibitive action of eggplant peel extract toward the corrosion of mild steel in 2M HCl solution by employing weight loss measurements and electrochemical techniques. …"
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Full Film, Boundary Lubrication and Tribochemistry in Steel Circular Contacts Lubricated with Glycerol
منشور في 2015"…In fact, water produced in the lubricant decreases traction forces due to the drastic decrease of the viscosity of glycerol with water addition.…"
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احصل على النص الكامل
احصل على النص الكامل
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Assessment of tropospheric NO<sub>2</sub> concentrations over greater Doha using Sentinel-5 TROPOspheric monitoring instrument (TROPOMI) satellite data: Temporal analysis, 2018–202...
منشور في 2024"…<p dir="ltr">This study presents a temporal evaluation of the tropospheric NO<sub>2</sub> column densities over Greater Doha using TROPOMI satellite data from May 2018 to December 2023, and an assessment of the impact of the preparations and hosting of the FIFA Football World Cup Qatar 2022, on NO<sub>2</sub> levels before, during and after the tournament over Greater Doha. …"
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Green Inhibition of Mild Steel Corrosion in a CO2 Saturated Saline Solution
منشور في 2015احصل على النص الكامل
doctoralThesis -
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Corrosion Inhibition of Mild Steel using Potato Peel Extract in 2M HCl Solution
منشور في 2011"…Nyquist plots from Impedance data showed that upon increasing the PPE concentration, the charge transfer resistance increased and the doubled layer capacitance decreased. The adsorption film of extract on the mild steel specimen was also found to follow Langmuir adsorption isotherm.…"
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Critical Review of Steel Column Base Plate Design Codes and Their Relevance to United Arab Emirates
منشور في 2019"…One of which the steel column base plate connection that would perform adequately for the specified demand. …"
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