Pilot-scale petroleum refinery wastewaters treatment systems: performance and microbial communities' analysis حسب Karray, Fatma

"…The reduction of the COD, BOD5, phenols, and the total petroleum hydrocarbon (TPH) reached 82.10%, 85.87%, 91.63%, and 81.11%, respectively at high hydraulic residence time (HRT = 10 days). Decreasing HRT to 5 and 2.5 days led to a decrease in the efficiency of the process and a decrease in biomass concentration was also observed (<1000 mg/l). …"
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High temperature thermal stability of innovative nanostructured thin coatings for advanced tooling حسب Cabibbo, Marcello

"…The main problem with steel, isthat itexhibits a relatively low hardness (below 10 GPa) which strongly decreases upon annealing above about 600 K.Thus, the majority of modern tools are nowadays coated with hard coatings that increase the hardness, decrease the coefficient of friction and protect the tools against oxidation. …"
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Do labor remittance outflows retard economic growth in Qatar? Evidence from nonlinear cointegration حسب Alsamara, Mouyad

"…A larger increase in remittance outflows would lead to a decrease in the aggregate demand and produce a deflationary pressure. …"
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Shear Behavior of Green Concrete Beams Reinforced with Basalt FRP Bars and Stirrups. حسب Elahtem, Ayman Ahmed

"…The Reinforced concrete structures when exposed to a harsh environment it will be susceptible to the corrosion of steel reinforcement and shall lead to deterioration process. …"
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Mechanical and microstructure characterization of hard nanostructured N-bearing thin coating حسب Cabibbo, M.

"…The main problem with steel, is that it exhibits a relatively low hardness (below 10GPa) which strongly decreases upon annealing above about 600K. …"
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Date palm status and perspective in qatar حسب Muhammed, Nazir H.

"…For this purpose, several research and development projects have to be planned and implemented. A date palm-based industry needs to be set up to decrease imports of this commodity.…"
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SARS-CoV-2: An Analysis of the Vaccine Candidates Tested in Combatting and Eliminating the COVID-19 Virus حسب Elmancy, Laila

"…Even though research has progressed the understanding of the SARS-CoV-2 virus, the information gathered about the vaccine trials and their findings have been scarcely distributed to the public in a single study. The information available to scientists has therefore given researchers a pathway to building an efficacious vehicle to substantially decrease the spread of the virus. …"
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Structural and electrochemical properties of electrodeposited Ni-P nanocomposite coatings containing mixed ceramic oxide particles حسب Zadeh, K.M.

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Understanding the mechanisms mediating cardio-renal benefit of empagliflozin in type 2 diabetes mellitus حسب Dimitrios, Patoulias

"…They have demonstrated1 that empagliflozin treatment resulted in a significant decrease in pulse pressure (PP), mean arterial pressure (MAP) and cardiac workload, compared with placebo; at week 12, placebo-adjusted mean changes from baseline were − 2.5 mmHg for PP, − 2.2 mmHg for MAP and − 315 mmHg x beats per minute (bpm) for cardiac workload (p < 0.0001 for all). …"
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THE ASSOCIATION BETWEEN SOFT DRINK CONSUMPTION AND BONE MINERAL DENSITY AMONG QATARI WOMEN: ANALYSIS OF QATAR BIOBANK DATA حسب HAMID, AAMNA MOHAMED IDREES ALI

"…Often the first clinical manifestation of osteoporosis might be a fracture, as the women do not recognize the decreases in BMD levels. …"
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The impact of intermittent fasting during Ramadan on psychomotor and cognitive skills in adolescent athletes حسب Bougrine, Houda

"…Results and discussion: The obtained data illustrated that there was a decrease in SRT, CRT, VT, and MRT performances during R1 in comparison to R0 (all p < .001). …"
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Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy حسب Shawaqfah M.

"…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …"
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Integrated planning of spare parts and service engineers with partial backlogging حسب Rahimi-Ghahroodi, S.

"…Moreover, approximation errors decrease as problems get larger. Furthermore, we test how the greedy optimization heuristic performs compared to other discrete search algorithms in terms of total costs and computation times. …"
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Factors Affecting Waterpipe Tobacco Smoking among University Students in Qatar. حسب Al-Jayyousi, Ghadir Fakhri

"…WTS was significantly associated with having a mother ( = 0.015) or a close friend ( < 0.001) who smoked. …"
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Evacuation under flooded conditions: Experimental investigation of the influence of water depth on walking behaviors حسب Dias, Charitha

"…Results explained that the walking speeds monotonically decrease with increasing water depths. Further, for the 0.90 m water level, the mean walking speed of males was significantly higher compared to the mean walking speed of females. …"
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EPIDEMIOLOGY OF CHLAMYDIA TRACHOMATIS IN LATIN AMERICA AND THE CARIBBEAN: SYSTEMATIC REVIEW, META-ANALYSES, AND META-REGRESSIONS حسب ABU-EL-RUZ, RASHA

"…Background: Chlamydia trachomatis (CT) is a Sexually Transmitted Disease (STD); it leads to health complications and infertility if not treated. …"
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Dose of Bicarbonate to Maintain Plasma pH During Maximal Ergometer Rowing and Consequence for Plasma Volume حسب Nielsen, Henning Bay

"…Six oarsmen performed “2,000-m” maximal ergometer rowing trials with BIC (1 M; 100–325 ml) and control (CON; the same volume of isotonic saline). During CON, pH decreased from 7.42 ± 0.01 to 7.17 ± 0.04 (mean and SD; p < 0.05), while during BIC, pH was maintained until the sixth minute where it dropped to 7.32 ± 0.08 and was thus higher than during CON (p < 0.05). …"
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The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments حسب Dlubek, Gunter

"…The mean hole volume, vh, varies in PS between 105 Å3 (27 °C) and 220 Å3 (190 °C), and shows a systematic decrease with increasing AN content, at Tg from 121 Å3 for PS to 102 (±2) Å3 for SAN50. …"
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Radiofrequency Ablation Versus Antiarrhythmic Drug Therapy for Atrial Fibrillation: Meta-analysis of Safety and Efficacy حسب Yi F.

"…BACKGROUND: Radiofrequency ablation (RFA) and antiarrhythmic drugs (AADs) are the main treatments used for atrial fibrillation (AF). In recent years, a number of articles comparing the 2 treatments have begun to emerge. …"
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Effect of concentration of DOC loaded TiO 2 nanotubes on the corrosion behavior of smart coatings حسب Ubaid F.

"…Various contents of the encapsulated TiO2 nanotubes (1, 3 and 5 wt%) were thoroughly dispersed into the epoxy matrix and the resulting composites were then applied on a cleaned steel substrate using doctor blade technique to develop smart coatings. …"
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