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281
Privacy-preserving federated learning cyber-threat detection for intelligent transport systems with blockchain-based security
منشور في 2022"…The results indicated that the precision and accuracy decreased by 7.1% on average with comparable F1-score and recall. …"
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282
Comparison of seed germination and recovery responses of a salt marsh Halophyte halopeplis perfoliata to osmotic and ionic treatments
منشور في 2016"…In order to partition salinity effects, we studied seed germination and recovery responses of a coastal salt marsh halophyte Halopeplis perfoliata to different isotonic treatments (?S: -0.5, -1.0, - 1.5, -2.0 and -2.5, MPa) of various salts and polythylene glycol (PEG) under two light regimes (12-h light photoperiod and 24-h complete darkness). …"
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283
Spray-Dried Proliposome Microparticles for High-Performance Aerosol Delivery Using a Monodose Powder Inhaler
منشور في 2018"…The lipid phase comprised soy phosphatidylcholine (SPC) and cholesterol (1:1), and the ratios of lipid to carrier were 1:2, 1:4, 1:6, 1:8 or 1:10 w/w. …"
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284
Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar
منشور في 2016"…To each pot, sufficient amount of 0.25-mm sieved biochar was mixed with soil to yield carbon to soil ratios of 0, 1, and 2% (wt/wt). 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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285
Intermediate ozonation to enhance biogas production in batch and continuous systems using animal dung and agricultural waste
منشور في 2017"…Continuous AD with organic loading rate (OLR) of 4 kgVSm−1d−1 showed a %ADefficiency of 62%, an average specific methane production in the range of 98–230 LkgVS−1 and a volumetric methane production rate in the range of 1.94–2.35 m3 m−3d−1. …"
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286
Effect of Fluid Viscosity and Fiber Length on the Performance of Fibrous Fluid in Horizontal Well Cleanout
منشور في 2023"…Various methods have been developed to improve hole cleaning, but their effectiveness decreases as the wellbore inclination increases. One way to solve this issue is to add fibers to the drilling fluid and reduce the settling velocity of the solids to improve the fluid's lifting capacity. …"
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287
Method to prepare ternary methanol electro-oxidation catalysts for direct methanol fuel cell applications
منشور في 2017"…The prepared Fe2O3-MC, CoO-MC and NiO-MC showed large pore volume of 0.72–1.46 cm3/g and high surface area of 686–1589 m2/g, which enabled high dispersion of the Pt-Ru nanoparticles. …"
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288
Monovalent Anion Interaction on the Electron Flow of Photosystem II in Soyabean Cells
منشور في 1994"…Increasing the incubation time up to 3 hours decreased the restoration to 43%. Thus, exposing the cells to N2 gas in the absence of the inhibitory anions caused an irreversible damage of photosystem II reflected by the linear electron transport from H2O to DMQ. …"
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289
Trends and Appropriateness of Sodium-glucose Co-transporter 2 Inhibitors Use in Qatar
منشور في 2023"…Male gender (odds ratio [OR], 1.692; 95% confidence interval [CI], 1.015 to 2.822; P=0.044), patients with a baseline glycated hemoglobin (HbA1c) >7% (OR, 3.219; 95% CI, 1.838 to 5.637; P<0.001) and atherosclerotic cardiovascular disease (ASCVD) (OR, 2.182; 95% CI, 1.053 to 4.523), patients on metformin (OR, 7.556; 95% CI, 4.460 to 12.802; P<0.001), sulfonylureas (OR, 2.301; 95% CI, 1.160 to 4.563; P=0.017), and dipeptidyl peptidase 4 inhibitors (DPP4is) (OR, 3.430; 95% CI, 2.004 to 5.871; P<0.001) were more likely to be prescribed a SGLT2i. …"
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290
Trends and levels of the global, regional, and national burden of appendicitis between 1990 and 2021: findings from the Global Burden of Disease Study 2021
منشور في 2024"…Although mortality rates due to appendicitis decreased in all regions, there were large regional variations in the temporal trend in incidence. …"
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291
Trends and levels of the global, regional, and national burden of appendicitis between 1990 and 2021: findings from the Global Burden of Disease Study 2021
منشور في 2024"…Although mortality rates due to appendicitis decreased in all regions, there were large regional variations in the temporal trend in incidence. …"
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292
Association between central obesity indices and iron status indicators among Qatari adults
منشور في 2021"…Waist circumference was inversely related to serum iron (β:-0.95, 95% CI:-1.50,-0.39) and transferrin saturation (β:-1.45, 95%CI:-2.46, -0.43) in women. …"
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293
Occurence of Phytoplankton in Stomach Content and Its Selectivity by Nile Tilapia (Oreochromis niloticus L.) Cultured in Fertilized Earthen Ponds
منشور في 2003"…Zooplankton did not exceed 1.5% of total stomach's contents. The main algal species found in fish stomach belonged to Cyanobacteria, Chlorophyta, Bacillariophyta and Euglenophyta. …"
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294
The association between serum cortisol, thyroid profile, paraoxonase activity, arylesterase activity and anthropometric parameters of undergraduate students under examination stres...
منشور في 2021"…The results showed that overall cortisol level was increased at pre-examination and during examination time intervals as compared to the post examination time interval while PON-1 and ARE were significantly (p < 0.05) decreased. …"
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295
Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance
منشور في 2018"…The results show that the selected amino acids and ionic liquids exhibit dual functional behaviour by providing the temperature shift of around 1.5-2.3 oC and delaying the hydrate formation time from 0.5-1.5 hr. …"
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296
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297
A process for CO2 capture and brine salinity reduction through reaction with potassium hydroxide: A multi-stage evaluation
منشور في 2022"…The results are promising in terms of the reactor system's adaptability to large-scale processes.…"
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298
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299
Impact Assessment of Land Use Planning on Travel Behavior in Doha, Qatar
منشور في 2017"…This transformed small port cities to large sprawling metropolitan and increased the population. …"
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300
Spatial-temporal pattern of cultivated land productivity based on net primary productivity and analysis of influencing factors in the Songhua River basin
منشور في 2022"…The results showed that: (1) the area of cultivated land in SRB decreased, but NPP of cultivated land area increased, during 2000-2020; (2) spatially, NPP was relatively low in the middle of the basin and gradually increased towards the periphery; (3) The main positive factors were the normalized difference vegetation index (NDVI), slope, precipitation, evapotranspiration, and total nitrogen, while the main negative factors were temperature, Ratio Vegetation Index, and total phosphorus. …"
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