Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

"…Among all severe, critical and fatal cases, 99.5% occurred during the primary infection. Cumulative incidence of fatal COVID-19 was 0.042% (95% CI 0.036% to 0.050%), with an incidence rate of 0.13 (95% CI 0.11 to 0.16) per 1000 person years. …"
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Serum Vitamin D Concentration ≥75 nmol/L Is Related to Decreased Cardiometabolic and Inflammatory Biomarkers, Metabolic Syndrome, and Diabetes; and Increased Cardiorespiratory Fitn... حسب Ganji, Vijay

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Understanding the False Positive of Modified Martensitic Steels in Sweet & Sour Service Conditions Using a Point Defect Model Perspective حسب Martinez, Alan

"…These results indicate a critical point in temperature in the tests with only CO2, where resistance to pitting susceptibility is maximized due to a decrease in the cation vacancy diffusivity.…"
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A robust experimental-based artificial neural network approach for photovoltaic maximum power point identification considering electrical, thermal and meteorological impact حسب Gowid, Samer

"…The results showed a decrease in the MSE of Vmp by 74.3% (from 1.6 V to 0.411 V), and in the MSE of Imp by 95% (from 4.4e−6 A to 2.16e−7 A), respectively. …"
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Blue photobiomodulation LED therapy impacts SARS-CoV-2 by limiting its replication in Vero cells حسب Zupin, L.

"…Our in vitro findings could represent the starting point for translational applications of PBMT as a supportive approach to fight SARS-CoV-2.…"
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Investigation of solar PV performance under Doha weather using a customized measurement and monitoring system حسب Touati, Farid

"…Results predict that the maximum power output from a Poly-crystalline panel decreases by around 30% for a dust exposure of five months. …"
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Pollution Characteristics of Particulate Matter (PM2.5 and PM10) and Constituent Carbonaceous Aerosols in a South Asian Future Megacity حسب Aslam, Afifa

"…Results of the study revealed that the mass concentration of PM2.5 and PM10 is at an elevated level throughout Faisalabad, with ambient PM2.5 and PM10 points that constantly exceeded the 24-h standards of US-EPA, and National Environment Quality Standards (NEQS) which poses harmful effects on the quality of air and health. …"
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The maxima in northerly wind speeds and wave heights over the Arabian Sea, the Arabian/Persian Gulf and the Red Sea derived from 40 years of ERA5 data حسب Aboobacker, V.M.

"…Recent studies point out the importance of northerly winds and waves in the Arabian Sea, especially those due to shamal and makran events in addition to the northeast monsoon system. …"
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Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending حسب MacLean M.

"…In this study, electroless Ni –P-nano-NiTi composite coatings containing 5.14 wt%, 6.07 wt%, and 7.02 wt % NiTi were subjected to three-point bend testing in order to determine bending properties. …"
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Generation, performance evaluation and control design of single-phase differential-mode buck-boost current-source inverters حسب Darwish, Ahmed

"…Since these inverters have continuous input currents, they are suitable for maximum power point tracking (MPPT) operation of photovoltaic systems. …"
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A BRET-based Mpro biosensor containing a nanobody and tandem cleavage sites shows an increased cleavage rate حسب Geethakumari, Anupriya M

"…We envisage that the NB2E3 nanobody-2× Mpro biosensor engineered here will be useful in drug discovery and functional characterization of Mpro mutants in newly emerging SARS-CoV-2 variants as well as in detecting SARS-CoV-2 infection in a point-of-care testing (POCT) format.…"
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Mercury pollution in doha (Qatar) coastal environment حسب Al-Madfa, H.

"…1). Organic Hg (0.6 ng L?1) contributed only 5.0% of total Hg. Mercury showed a strong tendency to be associated with suspended matter in Doha coastal waters, as it represented about 73.0% of the total. …"
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Dynamics of Neisseria gonorrhoeae transmission among female sex workers and clients: A mathematical modeling study حسب 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. …"
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Salicylic acid restricts mercury translocation by activating strong antioxidant defense mechanisms in sweet pepper (Capsicum annum L.) حسب Khalid, Muhammad Fasih

"…So, the experiment was designed to assess the effect of SA on sweet pepper (Capsicum annum L.) seedlings grown under different Hg toxicity concentrations. Spraying of 100 μM SA at three different Hg levels, i.e., 0 μM, 50 μM, 100 μM, and 150 μM. …"
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Phenolic contents-based assessment of therapeutic potential of Syzygium cumini leaves extract حسب Ahmed, Rashid

"…The DPPH assay demonstrated a higher antioxidant potential (IC-50 value of 133 μg/ml), which was comparable to the IC-50 of ascorbic acid (122.4 μg/ml). …"
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Developmental Toxicity of Surface-Modified Gold Nanorods in the Zebrafish Model حسب Zakaria, Zain Z

"…Our data showed that AuNRs caused mortality with a calculated LC50 of EC50,24hpf of AuNRs being 9.1 μg/mL, while a higher concentration of AuNRs was revealed to elicit developmental abnormalities. …"
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Acute and chronic toxicity assessments of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) on the calanoid copepod Acartia clausi: Effects on survival, development, sex-ratio and... حسب Emna, Djebbi

"…The most resistant life stage was N1 with LC50 values > 1500 μg L-1 and >5000 μg L-1, respectively for E2 and EE2. …"
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Molecular properties prediction, anticancer and anti-inflammatory activities of some pyrimido[1,2-b]pyridazin-2-one derivatives حسب Zeiz, Ali

"…Anti-inflammatory assessments revealed that compound 1 displayed the strongest inhibitory activity on NO production with IC50 of 29.94 ± 2.24 µM, and down-regulated the expression of COX-2. …"
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PERFORMANCE OPTIMIZATION OF PROPANE PRE-COOLED MIXED REFRIGERANT (C3MR) PROCESS FOR NATURAL GAS LIQUEFACTION حسب SHADY, ROBA TAWFIK SAAD MOHAMED

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Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor, Izumi

"…Its values in the Gulf ranged from −50 to −310 μmol kg−1 implying CaCO3 precipitation. …"
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