-
321
Throughput of ARQ protocols over Rician, Nakagami and MIMO block fading channels
منشور في 2020"…Keywords: ARQ, throughput, error probability, fading channels, space-time, multiple antennas, transmit diversity, MIMO, Rician, Nakagami.…"
احصل على النص الكامل
احصل على النص الكامل
article -
322
Fixed-interval versus OCT-guided variable dosing of intravitreal bevacizumab in the management of neovascular age-related macular degeneration
منشور في 2012"…Results Compared to baseline, variable dosing had a mean improvement in BCVA of 11.0 letters after 12 months vs 9.2 letters for fixed-interval dosing (P = .81). …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
article -
323
The Triple “S” Impact of COVID-19: Nationwide Evidence of the Impact of the Stress Associated With Restrictive Measures on Substance Use, Sleep, and Social Connectedness in Qatar...
منشور في 2023"…Of tobacco users in our sample, 36% reported increased tobacco use since the start of home confinement, while 41.6% of alcohol users reported decreased alcohol use. Concerning sleep, 46.1% reported an increase in average sleep duration per day (0.77 h mean increase, 95% CI: 0.66-0.88, P<0.001), and a third of participants reported poorer sleep quality. …"
-
324
Healthcare Professionals' Attitudes Toward Patients With Mental Illness: A Cross-Sectional Study in Qatar
منشور في 2022"…</p> <h3>Results</h3> <p>A total of 406 nurses and 92 doctors participated in the study. The nurses' mean MICA score was significantly higher than that of the physicians. …"
-
325
Synergetic effects of dodecylamine-functionalized graphene oxide nanoparticles on antifouling and antibacterial properties of polysulfone ultrafiltration membranes
منشور في 2021"…All membranes were characterized in terms of chemical structure, morphology, hydrophilicity, porosity and mean pore size. Cross-section SEM images showed the distribution of GO and rGO-DDA between the pores and on the polymer walls. …"
-
326
Evaluating the impact of the Minimization of Aggression and Violence (MoAV) intervention on mechanical restraint use in Qatar's acute mental health setting
منشور في 2025"…The percentage of restrained patients decreased from 25 % to 4 %, p = (<0.001). The mean duration of restraint incidents slightly increased from 59.1 min in 2016 to 61.3 min in 2021, though this change was not statistically significant. …"
-
327
Using Data Mining and Text Mining Techniques in Predicting the Price of Real Estate Properties in Dubai
منشور في 2014"…It is found that the results of linear regression prediction have been improved significantly after adding text mining to the experiments. The root mean squared errors RMSEs for all data subsets have decreased leading to enhancing the accuracy of prediction. …"
احصل على النص الكامل
-
328
-
329
Intravenous administration of gold nanoparticles in rats exhibit alterations in sphingomyelins, bile acids, sphingolipids, and cholesterol esters levels
منشور في 2024"…Annotation of metabolites was determined by retention times and specific MRMs for each compound. Results indicate that AuNPs treatment significantly impacted several metabolic pathways. …"
-
330
The effect of Hydrogen Peroxide treatments on dental enamel porosity and protein structure and its long-term implications on tooth hardness and optical properties
منشور في 2025"…<h3>Objective</h3><p dir="ltr">The aim of this study is to investigate how hydrogen peroxide (HP) treatments affect enamel porosity and protein structure, as well as their impact on tooth shade and hardness over time. </p><h3>Methods</h3><p dir="ltr">Fifty healthy teeth were collected from adult patients. …"
-
331
Peripheral inflammatory and metabolic markers as potential biomarkers in treatment-resistant schizophrenia: Insights from a Qatari Cohort
منشور في 2024"…Multivariate analysis highlighted significant differences in platelet count, mean platelet volume (MPV), TG, HbA1c, BMI, neutrophil/lymphocyte ratio (NLR), monocyte/lymphocyte ratio (MLR), and ferritin among the groups. …"
-
332
Brain microstructural changes support cognitive deficits in HIV uninfected children born to HIV infected mothers
منشور في 2020"…Decreased FA along with both increased and decreased MD in different brain regions was present in HUC compared to CHNM. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
article -
333
Vitamin D association with coagulation factors in polycystic ovary syndrome is dependent upon body mass index
منشور في 2021"…In addition, coagulation variables such as thrombin-activatable fibrinolysis inhibitor, plasminogen activator inhibitor-1 (PAI-1), D-dimer, Antithrombin and thrombomodulin have been reported to be elevated in PCOS compared to control subjects, and the functional coagulation tests including prothrombin time, thrombin time and fibrin degradation products may be predictive of PCOS. …"
-
334
Outcomes of POCUS‐Guided Peripheral Intravenous Access in Difficult Venous Access Patients: A Systematic Review and Meta‐Analysis
منشور في 2025"…A systematic review of 15 studies with 1485 patients, sourced from five databases, including PubMed, Cochrane Library, MEDLINE, Web of Science, and Google Scholar, showed POCUS significantly improved success rates (OR: 4.25), first‐attempt success (OR: 5.31), reduced attempts (MD: −0.83), and decreased procedure time (MD: −9.75 min). Fewer complications (OR: 0.49) observed with POCUS compared to standard techniques. …"
-
335
Wild carrot pentane-based fractions suppress proliferation of human HaCaT keratinocytes and protect against chemically-induced skin cancer
منشور في 2017"…Results All fractions exhibited significant cytotoxicity, with HaCaT cells being 2.4–3 times less sensitive than HaCaT-ras A5 (benign tumorigenic), and HaCaT-ras II4 (malignant) cells. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
article -
336
Fixed Shading Scenarios to Optimize Lighting Performance and Energy Efficiency in Office Buildings Case Study of Dubai Design District
منشور في 2021"…The daylight analysis was conducted on one typical office space during three timings, 9:00 am, 12:30, and 17:00, on two dates, 21st of December and 21st of June, to check variations. …"
احصل على النص الكامل
-
337
A Comprehensive Method of Ion Exchange Resins Regeneration and Its Optimization for Water Treatment
منشور في 2020"…Water conductivity, as an indicator of regeneration efficiency, was monitored over time at the different conditions and scenario. In general, it was observed that the conductivity decreases with time until one point is reached and then starts to increase as a result of resin saturation. …"
احصل على النص الكامل
bookPart -
338
Enhanced PSO-Based NN for Failures Detection in Uncertain Wind Energy Systems
منشور في 2023"…The proposed methodology improves the diagnosis abilities, reduces the computation time, and decreased the storage cost. The presented experimental results prove the high performance of the suggested paradigms in terms of computation time and accuracy.…"
-
339
Graph-Guided Regularized Regression of Pacific Ocean Climate Variables to Increase Predictive Skill of Southwestern U.S. Winter Precipitation
منشور في 2021"…Physics-based deterministic models show limited ability to predict precipitation as the lead time increases, due to imperfect representation of physical processes and incomplete knowledge of initial conditions. …"
احصل على النص الكامل
-
340
The effect of the local inertial term on the fluid flow in channels partially filled with porous material
منشور في 2001"…Also, it is found that the deviation between the predictions of the transient and the quasi-steady models is more significant in the porous domain and the deviation decreases as the time proceeds.…"
احصل على النص الكامل