Synergistic effects and optimization of nitrogen and phosphorus concentrations on the growth and nutrient uptake of a freshwater Chlorella vulgaris by Alketife, Ahmed M.

“…1 and the maximum biomass produced was decreased more than three-fold to 0.5 g/L. The Box Behnken experimental design and response surface method were used to study the effects of the initial concentrations (P, N and C) on P and N removal efficiencies. …”
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Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study by Houssein H., Ayoub

“…Increasing condom use from 10 % to 50 % lowers NG prevalence among FSWs, clients, and their spouses from 12.2 % to 6.4 %, 1.2 % to 0.5 %, and 0.4 % to 0.2 %, respectively. Increasing symptomatic treatment coverage among FSWs from 0 % to 100 % decreases prevalence from 10.6 % to 4.5 %, 0.8 % to 0.4 %, and 0.3 % to 0.1 %, respectively. …”
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Debt maturity, financial crisis and corporate performance in GCC countries: A dynamic-GMM approach by Zeitun, Rami

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Impact assessment of non-indigenous jellyfish species on the estuarine community dynamic: A model of medusa phase by Muha, Teja Petra

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Aldehyde dehydrogenase expression in Metaphire posthuma as a bioindicator to monitor heavy metal pollution in soil by Panday, Raju

“…The ALDH activity was found to be highest in worms cultured in 5 ppm heavy metal contaminated soils. Although, ALDH activities decreased as the heavy metal concentration in soil increased, they were significantly higher when compared to control worms cultured in uncontaminated soils. …”
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Solar hydrogen production via a samarium oxide-based thermochemical water splitting cycle by Bhosale, Rahul

“…The computational thermodynamic analysis of a samarium oxide-based two-step solar thermochemical water splitting cycle is reported. …”
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Type 2 diabetes epidemic and key risk factors in Qatar: A mathematical modeling analysis by Awad, Susanne F.

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Morphology, Nucleation, and Isothermal Crystallization Kinetics of Poly(ε-caprolactone) Mixed with a Polycarbonate/MWCNTs Masterbatch by Gumede, Thandi P.

“…The nanocomposites contained 0.5, 1.0, 2.0, and 4.0 wt % MWCNTs. Even though PCL and PC have been reported to be miscible, our DSC (Differential Scanning Calorimetry), SAXS (Small Angle X-ray Scattering), and WAXS (Wide Angle X-ray Scattering) results showed partial miscibility, where two phases were formed (PC-rich and PCL-rich phases). …”
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Corrosion inhibition of API X120 steel in a highly aggressive medium using stearamidopropyl dimethylamine by Radwan, A.Bahgat

“…The inhibition efficiency of the stearamidopropyl dimethylamine (SAPDA) surfactant for the corrosion of API X120 steel in a 0.5 M HCl solution at different temperatures was investigated using different electrochemical and microscopy techniques. …”
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Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar by Chemaitelly, Hiam

“…In the post-first omicron phase, incidence rate of fatal COVID-19 decreased by 90.0% compared with earlier stages. Both severity and fatality exhibited an exponential increase with age and a linear increase with the number of coexisting conditions. …”
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Regional Difference in the Association between the Trajectory of Selenium Intake and Hypertension: A 20-Year Cohort Study. by Xie, Changxiao

“…The incidence of hypertension was 30.1, 30.5, 30.6, and 31.2 per 1000 person-years among participants with cumulative average selenium intake of 21.0 ± 5.1, 33.2 ± 2.8, 43.8 ± 3.6, and 68.3 ± 25.2 µg/day, respectively. …”
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Qatar Culture Collection of Microalgae: A Sustainable Source for Biodiesel Production and Omega Fatty Acid Compounds by Bounnit, Touria

“…In terms of lipid contents, the results indicate a variety of the amounts. Nannochloris sp. showed the highest amount of total lipid (28.5%) followed by Chlorocystis sp. isolates with a total lipid amount of (19.5–21.5%) and later comes the Tetraselmis sp. strains with a total lipid content of (17.8–20.3%). …”
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Box-Behnken approach for optimization of Cr(III) removal from a real tanning effluent using powdered marble by Boujelben, R.

“…The results showed that the maximum uptake (> 99%) was obtained at a chromium initial concentration of 0.758�g/L, pH = 5.0 and using 6% (w:v) of powdered marble. …”
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Enhanced Filtration Characteristics and Reduced Bacterial Attachment for Reverse Osmosis Membranes Modified by a Facile Method by Nnadiekwe, Chidera C.

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Spectral and Structural Properties of High-Quality Reduced Graphene Oxide Produced via a Simple Approach Using Tetraethylenepentamine by Alkhouzaam A.

“…GO nanosheets, produced using a modified Hummers? method, were functionalized using two different GO:TEPA ratios (1:5 and 1:10). …”
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Optimized intake manifold designs and their effects on the operation and emissions of a gas-to-liquid diesel engine by Abdellatif, Y. M.

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A CFD- RSM study of cuttings transport in non-Newtonian drilling fluids: Impact of operational parameters by Awad A.M.

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Demographic characteristics, laboratory features and complications in 346 cases of brucellosis: A retrospective study from Qatar by Varikkodan, Irfan

“…Results: Of the 346 patients 299 were males. The mean age was 39.62 years. 120 patients had history of drinking raw milk and 116 had a history of contact with animals. …”
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Impact of pharmacist-involved collaborative care on diabetes management in a primary healthcare setting using real-world data by Abdulrhim, Sara

“…Moreover, compared to baseline, pharmacist-involved collaborative care significantly improved (p < 0.05) the levels of HbA1c (7.5% vs. 6.8%), low-density lipoprotein cholesterol (3.7 mmol/L vs. 2.8 mmol/L), total cholesterol (5.43 mmol/L vs. 4.34 mmol/L), and body mass index (30.42 kg/m2 vs. 30.17 kg/m2) after 17 months within the intervention group. …”
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BIOTREATMENT OF GTL PROCESS WATER AND PESTICIDES CONTAMINATED WATER USING PSEUDOMONAS AERUGINOSA: A COMPARATIVE STUDY by AHMED, SOMAYA AHMED ELBASHIR

“…Over 40% of the world's population suffers from water scarcity, a problem that is expected to get worse because of global warming and desertification. …”
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