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541
Potential mechanisms of human recombinant arginase I (Co)-PEG5000 [HuArgI (CO) - PRG5000] induced cytotoxicity in glioblastoma cells. (c2018)
منشور في 2018"…The addition of chloroquine, an autophagy inhibitor, increased the sensitivity of cells to [HuArgI (Co)-PEG5000]-mediated arginine depletion at earlier time points. We also concluded that autophagy was activated in response to arginine depletion and plays a protective role at early time points. …"
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masterThesis -
542
Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization
منشور في 2021"…Results show that at realistic and conservative conditions, the geofluid temperature considerably decreases for the first four months of operation (by an average of 30 °C) and tends to be constant after half a year of operation. …"
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543
Genotypic and phenotypic characterization of candida albicans Lebanese hospital isolates resistant and sensitive to caspofungin. (c2018)
منشور في 2018"…Caspofungin sensitive strains showed decreased resistance to Congo red yet increased virulence and biofilm formation. …"
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masterThesis -
544
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"…ObjectiveThe 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. MethodsFifty healthy teeth were collected from adult patients. …"
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article -
545
Kefir exhibits anti‑proliferative and pro‑apoptotic effects on colon adenocarcinoma cells with no significant effects on cell migration and invasion
منشور في 2014"…To assess the effect of kefir on cancer metastasis, wound‑healing and time‑lapse movies, in addition to collagen‑based invasion assay, were used. …"
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article -
546
Adopting Geophysical Testing Techniques in Geotechnical Investigation and Shallow Foundation Design
منشور في 2018احصل على النص الكامل
doctoralThesis -
547
Channel Network Control on Seasonal Lake Area Dynamics in Arctic Deltas
منشور في 2020"…This shrinkage signal, easily extracted from remote sensing observations, may offer the means to constrain estimates of lacustrine methane emissions and to develop process-based estimates of depth to permafrost on arctic deltas.…"
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548
Raising awareness among health educators and educational institutions of the need to overcome the language barrier among Non-Native English speaking students of Health Sciences in...
منشور في 2015"…This study showed a decrease in 2014 for the proportion of students in the foundation year that studied sciences in English with 73% in 2013 to 39% in 2014. …"
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549
Essays on international environmental policy
منشور في 2009"…Such sedimentation negatively affects downstream water delivery and related ecosystem services, and is often the outcome of land erosion caused by agricultural activities along waterways. …"
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masterThesis -
550
Sustainable Detoxification of Methylene Blue in Wastewater via Tea Residue Adsorption: Optimization and Kinetics
منشور في 2025"…The impact of various parameters on MB removal was assessed, including solution pH, adsorbent dosage, pollutant concentration, and contact time. Optimal conditions were identified as pH 10, a dosage of 4 g/L, a concentration of 100 mg/L, and a contact time of 2 h, achieving nearly 99% removal efficiency at 25 °C. …"
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551
Trends in criminal convictions in Japan for vehicle collisions where one driver suffers from an epileptic seizure
منشور في 2015"…<p dir="ltr">For the last fourteen years in Japan, casualties due to traffic collisions have decreased. There were 9,073 traffic fatalities in 2000 and 4,113 in 2014. …"
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552
The effect of type and combination of fertilizers on eukaryotic microbiome of date palm rhizosphere
منشور في 2024"…Samples were collected from one wild population, five cultivars from two farms, and a factorial fertilizer experiment (organic, chemical, and biofertilizer) in Qatar. …"
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553
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.…"
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article -
554
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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555
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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556
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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557
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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558
Stabilization of Sandy Soil Against Internal Erosion Using Lime
منشور في 2021احصل على النص الكامل
doctoralThesis -
559
One-year experience of hybrid closed-loop system in children and adolescents with type 1 diabetes previously treated with multiple daily injections: drivers to successful outcomes
منشور في 2022"…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 3 months (p = 0.02) and remained stable to 7.1 ± 0.6 (54 ± 6.6 mmol/mol) at 12 months (p = 0.02). …"
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560
Error probability of coded STBC systems in block fading environments
منشور في 2006"…Results show that the performance degradation due to channel memory decreases as the number of transmit antennas is increased. …"
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article