National trends of outcomes in transcatheter aortic valve replacement (TAVR) through transapical versus endovascular approach: From the National Inpatient Sample (NIS). by Abugroun, Ashraf

“…National trends show a steady increase in the number of endovascular-TAVR procedures with a concurrent decrease in procedural complications.…”
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Date palm status and perspective in qatar by 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 by 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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Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar by Ahmedna, Mohamed

“…Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …”
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Complex-impedance response of an Ag/TeO2-V2O5/Ag structure by El-Muraikhi, M.

“…This is reflected in a low-frequency Cole–Cole dependence z″ (z′) for the impedance and in a linear dependence ″(′) for the dielectric constant throughout the temperature range. …”
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Towards energy efficient and quality of service aware cell zooming in 5G wireless networks by Lateef, Hafiz Yasar

“…The exponential growth of mobile data traffic would lead to dense deployment of small base stations and eventually higher energy consumption in Fifth Generation (5G) wireless networks. We formulate a dynamic cell zooming and base stations sleep optimization algorithm for dense heterogeneous networks as a Linear Programming (LP) problem in order to not only minimize the system power consumption but also to guarantee the quality of service to end user. …”
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Hemoglobin, hematocrit and plasma volume variations following combined sprint and strength: Effect of advanced age by Sellami, M.

“…Results: At P1, Hct was significantly (P <.05) greater in young compared to middle-aged groups. At P1, PV decrease during exercise was significantly (P <.05) higher in middle-aged compared to young groups. …”
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Superior photocatalytic activity of Cu doped NiWO4 for efficient degradation of benzene in air even under visible radiation by Tri N.L.M.

“…The obtained experimental result indicated that photocatalytic performance of the prepared Cu-NiWO4 materials were greater than that of the pure NiWO4. This was because Cu effectively acted as novel dopant, which not only affected valence band (VB) top and conduction band (CB) bottom of NiWO4 but also formed a medium energy level between CB and VB of the NiWO4 to decrease its energy band gap and electron-hole recombination rate. …”
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Factors Affecting Waterpipe Tobacco Smoking among University Students in Qatar. by 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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Effect of self-healing calcium nitrate microcapsules on concrete properties by Milla, Jose

“…Overall, the results of this study indicated that although microcapsules caused a decrease in the compressive strength of the concrete, they enhanced the self-healing capability of the concrete that was produced. …”
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Credit bureaus and financial constraints do corruption matter? by Ben Ali, Mohamed Sami

“…This study aims to assess whether or not the presence of credit bureaus is associated with more or fewer financing constraints while considering the interfering effect of corruption in a sample of 18 countries in Eastern Europe and the Middle East and North Africa (MENA) region during the period 2011-2014. …”
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Understanding the mechanisms mediating cardio-renal benefit of empagliflozin in type 2 diabetes mellitus by 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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Tribo-mechanical properties evaluation of HA/TiO2/CNT nanocomposite by Zalnezhad, Erfan

“…The wear rate of HA/TiO2/CNT with the highest CNT content showed a decrease compared with those of the other samples. …”
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Low levels of Vitamin D during pregnancy associated with gestational diabetes mellitus and low birth weight: results from the MAASTHI birth cohort by Deepa, R.

“…For every one-unit increase in Vitamin D levels, Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) decreased by nearly 18%. Furthermore, causal mediation analysis showed that a decrease in one unit of Vitamin D is associated with a decrease of 0.015 units of fasting blood sugar (FBS) and 0.019 units of postprandial blood sugar (PPBS) as it flows through the mediator variable insulin resistance. …”
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PERFORMANCE OPTIMIZATION OF PROPANE PRE-COOLED MIXED REFRIGERANT (C3MR) PROCESS FOR NATURAL GAS LIQUEFACTION by SHADY, ROBA TAWFIK SAAD MOHAMED

“…The achieved SEC of 0.2649 kWh/kg LNG, on a large-scale plant with a natural gas flow rate of 120 kg/s, results in an 18 MW compression power decrease, saving approximately 17.42 million QAR per year for each C3MR process. …”
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Energy Demand Estimation and Forecasting in Qatar by Khalifa, Ahmed Ali

“…For instance, Zarnikau (2003) suggests three possible forms. First, a linear specification involving the levels of the variables, where the energy demand is a linear function of production factors or of other elements affecting demand. …”
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Asymmetric effects of oil price shocks on the demand for money in Algeria by Amirouche, Chelghoum

“…This paper investigates the symmetric and asymmetric effects of real oil prices on real money demand in Algeria over the period 1999:Q1–2020:Q1. Using a linear autoregressive distributed lag model (ARDL), and a nonlinear autoregressive distributed lag model (NARDL), we find no evidence of a long-term relationship among the variables. …”
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Evaluation of pretreatment and membrane configuration for pressure-retarded osmosis application to produced water from the petroleum industry by Dardor, Dareen

“…Pressure-retarded osmosis (PRO) is a promising membrane technology for harnessing the osmotic energy of saline solutions. …”
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Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs by Al-Amodi, Adel O.

“…A decrease in oil/water interfacial tension (IFT) of almost one order of magnitude was observed when adding surfactant‐A. …”
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Absorption of CO2 in aqueous blend of methyldiethanolamine and arginine by Talkhan, Ahmed Gomaa

“…The study was carried out at different mixing ratios of MDEA and Arg at a total concentration of 2 moles per litre. The CO2 partial pressure varied from about 10 to 100 kPa, and the temperature varied from 293 K to 323 K. …”
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