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361
Comparative effectiveness of one versus two doses of COVID-19 vaccines in Qatar: Evidence of converging protection over time
منشور في 2025"…In contrast to the gradual buildup of protection against infection, single-dose effectiveness against severe, critical, or fatal COVID-19 increased rapidly for all three vaccines, exceeding 85 % by day 21 and closely matching the protection achieved after two doses.…"
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362
Durability of Cardiometabolic Outcomes Among Adolescents After Sleeve Gastrectomy: First Study with 9-Year Follow-up
منشور في 2022"…</p> <h2>Results</h2> <p>Follow-up rates were 57.53%, 82.87%, 85.24%, 83.92%, and 83.33% at the five time points. The preoperative mean body mass index (BMI) (45.60 ± 6.50 kg/m2) decreased at year 1 (30.04 ± 4.96 kg/m2, P=0.001) and was maintained up to 9 years (30.20 ± 3.92 kg/m2, P = 0.001). …"
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363
10-Day structured initiation protocol from multiple daily injection to hybrid closed-loop system in children and adolescents with type 1 diabetes
منشور في 2020"…The participants used the sensor for a median of 92% of the time and spent a median of 89% in Auto Mode. The mean HbA1c decreased from 8.2 ± 1.4% (66 ± 15.3 mmol/mol) at baseline to 6.7 ± 0.5% (50 ± 5.5 mmol/mol) at the end of the study (p = 0.017). …"
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364
Hypospadias Reconstruction Training: Development of an Ex-Vivo Model for Objective Evaluation of Surgical Skills
منشور في 2025"…However, EMG measurements showed significant reductions in average EMG power, total time, dominant frequency, and cumulative muscle workload after training. Additionally, the mean power spectral density of the EMG signal decreased notably post-training. …"
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365
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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366
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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367
Public motives and willingness to participate in first-in-human clinical trials in Saudi Arabia: A new era in the making
منشور في 2019"…Results Study participants who were invited and completed the survey were 657. The percentage mean score of participants’ attitudes and concern was 70.1 ± 16.4 and 58.3 ± 15.3 respectively. …"
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368
Rapid mercury removal using living indigenous microalgal communities for water treatment applications
منشور في 2025"…Comprehensive isotherm analysis revealed the Dubinin-Radushkevich model provided the best fit (R<sup>2</sup> = 0.998), indicating physical adsorption as the predominant mechanism, as the calculated mean free energy (E = 5.00 kJ/mol) falls within the 1–8 kJ/mol range characteristic of physical adsorption. …"
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369
An empirical evaluation of the technology cycle time indicator as ameasure of the pace of technological progress in superconductortechnology
منشور في 1999"…This study found the trend in TCT changed abruptly from gradually increasing (slowing in cycle time) to steadily decreasing (speeding up in cycle time) following the discovery of high-temperature superconductors. …"
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370
Current rise criterion
منشور في 2014"…CRC is demonstrated to be capable of monitoring the tool condition for a variety of cutting parameters of speeds and feeds. Another study demonstrated the versatility of CRC as a discriminator of the quality of chisel drills. …"
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371
Changes in Blood microRNA Expression and Early Metabolic Responsiveness 21 Days Following Bariatric Surgery
منشور في 2019"…</p><p dir="ltr"><br></p><h3>Methods: </h3><p dir="ltr">Twenty-nine type 2 patients with severe obesity (mean BMI 46.2 kg/m<sup>2</sup>) and diabetes underwent Roux-en-Y gastric bypass (RYGB) surgery. …"
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372
The impact of metformin therapy for gestational diabetes on fetal growth in women with risk factors for fetal growth restriction- a registry-based study from Qatar
منشور في 2023"…</p> <h3>Conclusion</h3> <p>The results of this study suggest that in women with additional risk factors for FGR, the concurrent use of metformin significantly decreases the birthweight and increases the risk for LBW, SFD, PTB and admission to NICU. …"
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373
SYSTEM DYNAMICS APPROACH FOR WHOLE LIFE CYCLE COST MODELLING OF RESIDENTIAL BUILDING PROJECTS IN UNITED ARAB EMIRATES
منشور في 2020"…The applied adjusting risks are comprising three value levels. Minimum, mean, and maximum cost risks. Simulated costs under adjusting risks' levels can be presented in the same exported data sheet. …"
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374
A Modified Oppositional Chaotic Local Search Strategy Based Aquila Optimizer to Design an Effective Controller for Vehicle Cruise Control System
منشور في 2023"…We also propose a simple yet effective objective function to increase the performance of the proposed algorithm (CmOBL-AO) to adjust the real PIDD2 controller's parameters effectively. …"
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375
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376
Conceptual Skills in Leading Change: A Competence Approach to Public Sector Leadership
منشور في 2019"…These interpretive cognitive acts of meaning construction by leaders and followers include significant elements of conceptual thinking and explanation. …"
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377
Can bitcoin’s volatility be tamed?
منشور في 2018"…Bitcoin is a software for operating a peer-to-peer payment network with its own hard money, without having to rely on a trusted third party. …"
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article -
378
Implementation of corporate governance rules and procedures in lebanese firms
منشور في 2014"…It also helps the organization to determine the means to achieve its objectives and monitor its performance. …"
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379
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380
An assessment of electronic commerce. (c2002)
منشور في 2002احصل على النص الكامل
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masterThesis