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521
Performance analysis of a new PV array reconfiguration approach: Simulations and outdoor experiments under fixed and moving shadows
منشور في 2025"…<p dir="ltr">Partial shading can significantly impair photovoltaic (PV) array performance in large-scale systems, by reducing power output and increasing the complexity of wiring and maintenance. …"
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522
Friction stir extrusion of ultra-thin wall biodegradable magnesium alloy tubes — Microstructure and corrosion response
منشور في 2021"…For example, tubular devices such as coronary stents manufacture require defect-free, highquality tubes with thin walls (100 μm – 1 mm) as a precursor. …"
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523
Complete resection of the alar folds in eight standing horses with a bipolar dividing and vessel‐sealing device
منشور في 2020"…The surgery significantly improved race earnings and performance while avoiding the risk associated with general anesthesia and offered a short and complication‐free rehabilitation period.</p> <h3>Clinical impact</h3> <p>This study describes a surgical technique offering a novel approach to resection of the alar folds in the standing horse.…"
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524
Landscape of childhood epilepsies – A multi-ethnic population-based study
منشور في 2022"…At the last follow up, only 36% of patients were seizure-free and 12% (170/1422) had a history of status epilepticus. …"
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525
Comparative life cycle assessment of sustainable energy carriers including production, storage, overseas transport and utilization
منشور في 2021"…<p dir="ltr">Countries are under increasing pressure to reduce greenhouse gas emissions as an act upon the Paris Agreement. …"
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526
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. …"
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527
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. …"
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528
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. …"
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529
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. …"
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530
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. …"
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531
The Effect of High Dose Isoflavone Supplementation on Serum Reverse T3 in Euthyroid Men With Type 2 Diabetes and Post-menopausal Women
منشور في 2018"…Thyroid stimulating hormone (TSH) serum concentrations increased while free thyroxine (fT<sub>4</sub>) concentrations decreased with 3 months of SPI compared to SP supplementation for both men and women. rT<sub>3</sub> correlated with TSH in both studies (<i>p</i> = 0.03) but not with either fT<sub>3</sub> or fT<sub>4</sub>. fT<sub>3</sub> levels did not differ between the SPI and SP preparations.…"
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532
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. …"
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533
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. …"
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534
Single-Cell Transcriptome Analysis Revealed Heterogeneity and Identified Novel Therapeutic Targets for Breast Cancer Subtypes
منشور في 2023"…Given the aggressive nature and lack of targeted therapies for TNBC, elevated expression of ENO1, FDPS, CCT6A, TUBB2A, and PGK1 predicted worse relapse-free survival (RFS) in basal BC (n = 442), while elevated expression of ENO1, FDPS, CCT6A, and PGK1 was observed in the most aggressive BLIS TNBC subtype. …"
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535
A multi-targeted approach to identify potential flavonoids against three targets in the SARS-CoV-2 life cycle
منشور في 2022"…These observations were complimented by the 100 ns molecular dynamics simulation and binding free energy analysis, which showed a considerable stability of docked bioflavonoids in the active site of SARS-CoV-2 target proteins. …"
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536
Deep learning-based cross-device standardization of surface-enhanced Raman spectroscopy for enhanced bacterial recognition
منشور في 2026"…<p dir="ltr">Surface-enhanced Raman spectroscopy (SERS) is a powerful, label-free technique for pathogen detection; however, its broader adoption in clinical diagnostics is hindered by inconsistent spectral quality across portable and laboratory-grade instruments, limited cross-device reproducibility, and the poor generalizability of existing machine learning approaches. …"
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537
Attitudes, motivators, and barriers toward influenza vaccination for children: a study from a conflict-ridden country
منشور في 2024"…<h3>Background</h3><p dir="ltr">Despite the increased recommendations for influenza vaccination, particularly among high-risk groups such as young children, Yemen lacks an influenza vaccination program, and the influenza vaccine is not included in the national immunization regime. …"
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538
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. …"
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539
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. …"
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540
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. …"