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Cyclic voltammetry and XPS studies of poly (aniline-co-3-aminophenol)
Published 2022“…In the electrochemical study, the copolymers differ from PA in the single-electron oxidation and reduction, reversibly at various scan rates ranging from 20 to 50 mV. The current density decreases from PA-co-3-AP20 to PA-co-3-AP80 by increasing the loading weight percentage of 3-aminophenol in the polymeric backbone. …”
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222
Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
Published 2023“…All the scenarios present increasing minimum and maximum temperatures and decreasing precipitation, except for RCP8.5, which predicted a more adverse trend. …”
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Swimming exercise improves short- and long-term memories: Time-course changes
Published 2021“…Young adult Wistar rats were tested for both short-term and long-term memories using the radial arm water maize (RAWM) paradigm following 0, 1, 7, 14, and 28 days of swimming exercise training (60 min per day, 5 days/week)s. The mean total errors on RAWM during the learning phase and memory testing remained the same (p > 0.5) after 1 day of swimming exercise. …”
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Development of CuAg/Cu2O nanoparticles on carbon nitride surface for methanol oxidation and selective conversion of carbon dioxide into formate
Published 2020“…The lower reduction potential of copper ([Cu+(aq) + e− → Cu(s)], + 0.52 eV) compared to Ag ([Ag+(aq) + e− → Ag(s)], +0.80 eV) makes Cu(0) easily exchangeable by Ag+ ions via galvanic exchange without applying any external bias. …”
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227
Molecular dynamics of CH4/CO2 on calcite for enhancing gas recovery
Published 2022“…Focusing on the effect of pressure, RDF peaks intensities increase, although this effect is limited to the 1-5 MPa range. Moreover, the high CO2 presence further decreases the effect of pressure on methane adsorption. …”
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228
Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
Published 2023“…Objective To assess the evolution of COVID-19 severity and fatality in a unique setting that consistently applied, throughout the pandemic, rigorous and standardised criteria for defining severe COVID-19 outcomes. Methods and analysis We conducted a national cohort study on 312 109 Qatari citizens to investigate incidence of severe, critical or fatal COVID-19 classified according to the WHO criteria between 28 February 2020 and 21 April 2023. …”
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Experimental study on effective placement of PCM packets in cooling vest to improve performance in warm environment
Published 2017“…It was found that the core temperature changed slightly when wearing the vest, however the local skin temperature of the back and front torso segments decreased by about 5 °C and 3 °C at the end of the exercise, respectively. …”
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231
STRUCTURAL AND FUNCTIONAL APPROACHES TOWARD ACTIVITY RESTORATION OF NOVEL CYSTATHIONINE BETA-SYNTHASE MUTATIONS
Published 2024“…Utilizing a multidisciplinary approach, including site-directed mutagenesis and DNA cloning, recombinant protein expression, affinity chromatography purification, circular dichroism spectroscopy, enzymatic assays, and in silico modeling, we assessed the impact of these mutations on CBS stability and function. …”
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232
Calmodulin Mutations Associated with Congenital Cardiac Disease Display Novel Biophysical and Biochemical Characteristics
Published 2018“…In contrast, in the presence of Ca2+, there was a significant decrease in the stability of the five proteins following the order CaMWT> CaMN98I > CaMD132E > CaMQ136P > CaMD134H. …”
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Profiling of intestinal microbiota in patients infected with respiratory influenza a and b viruses
Published 2021“…Little is known about the association between respiratory viral infections and their impact on intestinal microbiota. Here, we compared the effect of influenza types, A and B, and influenza shedding in patients’ stools on the gut microbiota diversity and composition. …”
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234
The Role of Qatar Community Pharmacists in Depression care: A Survey of Attitudes, Practices and Perceived Barriers
Published 2020“…Pharmacists' attitudes to depression were moderately positive (mean score=3.41, SD= 0.26). However, the extent of pharmacists' involvement in depression care was very low (mean score=2.64, SD= 0.94). …”
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235
Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf
Published 2018“…Several trends were found in the vertical distribution of the fish community, most species were observed between 20 and 50 m depth and higher fish abundance recorded in the upper layers, down to 40 m depth and decreasing with depth. …”
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236
Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows
Published 2023“…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …”
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Simulation and Optimization of an LNG Plant Cold Section
Published 2018“…Final LNG product comprised of 0.7 mol% nitrogen, 90.7 mol% methane, 5.6 mol% ethane, 2 mol% propane, 0.92 mol% butanes, at a temperature and gross heating value (GHV) of approximately − 161°C and 11.5 respectively. …”
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Effects of financial turmoil on financial integration and risk premia in emerging markets
Published 2016“…Our sample consists of monthly data for 12 emerging stock markets over the period 1988M3-2015M3. We find that while the financial integration of emerging stock markets has registered short-term reversals episodes in countries that have been exposed to national or/and regional financial crises, it has decreased in most of the emerging countries of our sample since the global crisis. …”
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Global, regional, and national burden of upper respiratory infections and otitis media, 1990–2021: a systematic analysis from the Global Burden of Disease Study 2021
Published 2024“…The mortality rate of URIs in 2021 was 0·2 per 100 000 (0·1 to 0·5), a decrease of 64·2% (–84·6 to –43·4) from 1990, when the mortality rate was 0·7 per 100 000 (0·2 to 1·1). …”
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Glycine and Folate Ameliorate Models of Congenital Sideroblastic Anemia
Published 2016“…Based on these findings, we observed that high levels of exogenous glycine, or 5-aminolevulinic acid (5-Ala) a metabolite downstream of Hem25 in heme biosynthetic pathway, were able to restore heme levels to normal in yeast cells lacking Hem25 function. …”
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