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. …"
احصل على النص الكامل

Effect of concentration of DOC loaded TiO 2 nanotubes on the corrosion behavior of smart coatings حسب Ubaid F.

"…Towards this direction, TiO2 nanotubes with an average size of ⁓10–15 nm (as confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM) analysis) were synthesized through a hydrothermal process and were then impregnated with DOC. …"
احصل على النص الكامل
احصل على النص الكامل

Experimental and numerical investigation of the flexural behavior of one-way RC slabs strengthened with near-surface mounted and externally bonded systems حسب Aljidda, Omar

"…In contrast, the slabs reinforced with EB experienced a decrease in ductility ranging from 38 % to 50 %. …"
احصل على النص الكامل
احصل على النص الكامل

Shear Behavior of Green Concrete Beams Reinforced with Basalt FRP Bars and Stirrups. حسب Elahtem, Ayman Ahmed

"…The beam will be subjected to four-point loads by the universal testing machine (UTM) till the failure takes over. …"
احصل على النص الكامل

Association between Insulin and Nitric Oxide in Human Retinal Microvascular Endothelial Cells in vitro حسب Rizk, Nasser Moustafa

"…In conclusion, this study demonstrated that Hyperglycemia causes an increase in ROS/oxidative stress and apoptosis, while insulin promotes a significant decrease in ROS and apoptosis, eNOS mediated NO production increases with hyperglycemia but remarkably decreases with insulin treatment after 1 hour, 2 hours and 4 hours, insulin could counteract the hyperglycemic effect on AKT/pI3 kinase which mediates NO production and VEGF-A, decreased adhesion molecules p-selectin involved in barrier disorder of retinal endothelial cells. …"
احصل على النص الكامل
احصل على النص الكامل

Blue photobiomodulation LED therapy impacts SARS-CoV-2 by limiting its replication in Vero cells حسب Zupin, L.

"…It was previously shown, in in vitro models of infections, that the LED blue light is able to decrease the viral load of HSV-1 and ZIKV. In our study, LED photobiomodulation therapy (PBMT) at blue wavelengths (450, 454 and 470 nm) was tested in an in vitro model of SARS-CoV-2 infection, employing three experimental settings: SARS-CoV-2 was irradiated and then transferred to cells; already infected cells were irradiated; cells were irradiated prior to infection. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Overconfident results with the bivariate random effects model for meta-analysis of diagnostic accuracy studies حسب Furuya-Kanamori, Luis

"…In 2001, Rutter and Gatsonis proposed the hierarchical summary receiver operating characteristic (HSROC) model,1 and in 2004 Macaskill described an empirical Bayes approach.2 Soon after, in 2005, Reitsma et al. proposed the bivariate random effects model,3 which has been widely adopted and is the most commonly used method for diagnostic meta-analysis.4 However, as pointed out by Diaz,5 the statistical performance of the bivariate model has not been scrutinized. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Uv-l/sulfite advanced reduction process as an efficient method for chlorate reduction in water حسب Bensalah, Nasr

"…A decrease of chlorate reduction yield was observed in presence of dissolved oxygen, nitrite, or nitrate confirming the contribution of SO3 •–, e– aq, and H• in the mechanism of chlorate reduction. …"
احصل على النص الكامل
احصل على النص الكامل

Prevention of oral cancer حسب Malki, Ahmed Mohamed

"…Prevention against oral cancer is divided into three stages, namely, primary, secondary, and tertiary prevention. …"
احصل على النص الكامل
احصل على النص الكامل

Correlation between delta-endotoxin and proteolytic activities produced by Bacillus thuringiensis var. kurstaki growing in an economic production medium حسب Ennouri, Karim

"…Maximal protease activity (540-2468 UI) obtained by BUPM5-1 and BUPM5-2 was 2.34-fold and 10.7-fold, respectively, more than that obtained by the wild strain BUPM5 with a drastic decrease of their delta-endotoxin production. …"
احصل على النص الكامل
احصل على النص الكامل

Trends in prevalence of depression and anxiety symptoms and effects of sociodemographic variables before and after the first wave of COVID-19 in Qatar حسب Khaled, Salma M.

"…The two-week prevalence of anxiety symptoms (≥10 on the GAD-7) was 3.6% in 2018 and 5.1% in 2020/2021 (p = 0.062). …"
احصل على النص الكامل
احصل على النص الكامل

Utilization of Emergency Services by Children with Asthma in Qatar حسب Arafah, Dima

"…Respiratory diseases are the most common conditions seen in Pediatric Emergency Centers (PECs) in Qatar. 2 The five PECs are an essential point of healthcare access for severely sick children, however, many people utilize them for potentially preventable reasons. 3 Methods: This was a quantitative retrospective observational study of children with asthma utilizing the five PECs during 2019. …"
احصل على النص الكامل
احصل على النص الكامل

Self-healing performance of smart coatings modified with different corrosion inhibitors. حسب Habib, Sehrish

احصل على النص الكامل
احصل على النص الكامل

Structural performance and moment redistribution of basalt FRC continuous beams reinforced with basalt FRP bars حسب Abushanab, Abdelrahman

"…Seven beams were longitudinally reinforced with BFRP bars, while the remaining three beams were reinforced with conventional steel bars and served as a control. …"
احصل على النص الكامل
احصل على النص الكامل

Fatigue and Monotonic Behaviors of Corrosion-Damaged Reinforced Concrete Beams Strengthened with FRCM Composites حسب Elghazy M.

"…Test results showed that the corrosion of steel bars dramatically decreased the fatigue life of the beams. …"
احصل على النص الكامل
احصل على النص الكامل

Changes in Copepod Community Structure in Response to Land-Based Activities along Alexandria Coastline, Mediterranean Sea حسب El Din, Nehad M. Nour [نهاد مصطفى نور الدين]

"…Industrial discharge exerted the highest impact on the copepod population by decreasing its density to less than 500 ind./m3. Despite the decrease m copepod abundance during high flow of sewage, the impacted area sustained the maximum copepod density low discharge i.e. 11,222 ind.…"
احصل على النص الكامل

Experimental results and modelling of corrosion-damaged concrete beams strengthened with externally-bonded composites حسب Elghazy M.

"…The investigated parameters included the corrosion levels (10 and 20% mass loss of steel reinforcement), the type of composite (fabric-reinforced cementitious matrix (FRCM) and fiber-reinforced polymers (FRP)), and the number of composite layers (one, two, and four). …"
احصل على النص الكامل
احصل على النص الكامل

Visitors off the trail: Impacts on the dominant plant, bryophyte and lichen species in alpine heath vegetation in sub-arctic Sweden حسب Monika, Rawat

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Visitors off the trail: Impacts on the dominant plant, bryophyte and lichen species in alpine heath vegetation in sub-arctic Sweden حسب Monika, Rawat

احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Mobile Epifauna Associated To Artificial Substrates In Offshore Qatari Waters حسب Abdulaziz Aziz, Naeem

"…Thirty plates were deployed, at depths between 10 and 44 m, in each of six offshore sites, along a transect defined between natural and artificial reefs (i.e., oil platforms). …"
احصل على النص الكامل