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281
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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282
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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283
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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284
The effects of long-term testosterone treatment on endocrine parameters in hypogonadal men: 12-year data from a prospective controlled registry study
منشور في 2022"…In this single-centre, cumulative, prospective, registry study, 321 hypogonadal men (mean age: 58.9 years) received testosterone undecanoate injections in 12-week intervals for up to 12 years. …"
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285
Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
منشور في 2023"…All the scenarios present increasing minimum and maximum temperatures and decreasing precipitation, except for RCP8.5, which predicted a more adverse trend. …"
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286
Response of cauliflower (<i>Brassica oleracea</i> L.) to nitric oxide application under cadmium stress
منشور في 2022"…Our results illustrated that the increasing levels of Cd in the sand, significantly (P < 0.05) decreased shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, germination percentage, germination index, mean germination time, time to 50% germination, chlorophyll a, chlorophyll b, total chlorophyll and carotenoid contents in all genotypes of B. oleracea. …"
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287
P-glycoprotein expression and function are increased in an animal model of amyotrophic lateral sclerosis
منشور في 2010"…In the present study, we used a transgenic mouse model of ALS (G86R mSOD1 mice) to test this hypothesis. Expression and functionality of P-glycoprotein (ABCB1, P-gp) and Breast Cancer Resistance Protein (ABCG2, BCRP), two major efflux pumps, were studied. …"
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288
An empirical study on measuring operating efficiency and revenue of real estate assets in the UAE using data envelopment analysis
منشور في 2022"…Research limitations/implications This study recommends that the FM operational variables that were found to inefficiently contribute to the revenue should be re-examined to test the validity of the findings. This is necessary before generalising or interpolating the results that are presented in this study. …"
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289
Autophagy Mediates the Effects of Physical Exercise on Learning and Memory through Activation of Hippocampal BDNF
منشور في 2020"…Interestingly, we also found that inhibition of autophagy in exercising 10-week-old mice decreases BDNF protein levels in the hippocampus as compared to the control exercising group. …"
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masterThesis -
290
In-Vehicle Performance Validation of the Semi-Active Hybrid Energy Storage System
منشور في 2015"…The UCs supply the dynamic component of the load current which decreases the battery size, limits the battery peak current, and extends its life. …"
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291
Orofacial Clefts
منشور في 2021"…Through functional assays to test the discrepancy in the behavior of both sets of cells, we assessed proliferation, motility, adhesion, and Rho GTPase activity. …"
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masterThesis -
292
Wild carrot pentane-based fractions suppress proliferation of human HaCaT keratinocytes and protect against chemically-induced skin cancer
منشور في 2017"…The cytotoxic effect of fractions (10, 25, 50 and 100 μg/mL) was tested on human epidermal keratinocytes (non-tumorigenic HaCaT cells and tumorigenic HaCaT-ras variants) using WST a ssay. …"
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article -
293
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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294
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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295
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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296
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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297
Evaluation of Lycopus uniflorus water extract for anti-inflammatory, anti-ulcerogenic and antioxidant activities
منشور في 2009"…The same doses were used to test for anti-inflammatory activity against edema induced in hind paw by carrageenan. …"
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article -
298
Breathing regulation and blood gas homeostasis after near complete lesions of the retrotrapezoid nucleus in adult rats
منشور في 2018"…CO2 detection, neuronal modulation) to the central respiratory chemoreflex (CRC). Here we test how important the RTN is to PCO2 homeostasis and breathing during sleep or wake. …"
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article -
299
Prediction of critical total drawdown in sand production from gas wells: Machine learning approach
منشور في 2023"…The RSM correlation decreased the average absolute percent relative error (AAPRE) by 12.7% compared to all published correlations' AAPRE of 22.6%–30.4%. …"
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300
Effect of Mg incorporation on the properties of PCL/Mg composites for potential tissue engineering applications
منشور في 2024"…The findings demonstrated that adding Mg influenced PCL’s mechanical and thermal properties. The mechanical test results showed that the tensile strength of 15% Mg composite filaments improved by around 10% compared to the neat PCL filaments. …"