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441
STEM: spatial speech separation using twin-delayed DDPG reinforcement learning and expectation maximization
منشور في 2025"…In this paper, a novel speech separation algorithm is proposed that integrates the twin-delayed deep deterministic (TD3) policy gradient reinforcement learning (RL) agent with the expectation maximization (EM) algorithm for clustering the spatial cues of individual sources separated on azimuth. …"
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442
"Thunderstorm distribution and frequency in Saudi Arabia"
منشور في 2005احصل على النص الكامل
article -
443
Isolation and study of Lipase activity of an olive oil degrading Thermoactionomyces SP. (c2002)
منشور في 2002"…The isolate grew optimally at a temperature of 60°C, a pH of 7.3, and an orbital shaking of 250 r.p.m. It showed an efficient olive oil degrading ability. …"
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masterThesis -
444
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445
Grid integration of renewable energy in Qatar: Potentials and limitations
منشور في 2021"…The results show that large-scale installations of renewable energy technologies can decrease the emission rate from electricity production at a relatively lower cost. …"
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446
Unraveling the future productivity burden of cardiovascular disease in Qatar: Investigating the modifiable risk factors control in type 2 diabetes
منشور في 2025"…However, implementing interventions to decrease the T2D incidence, lower SBP, reduce the number of smokers, and improve the total cholesterol could yield gains of 200,408, 198,173, 194,725, and 113,462 PALYs, respectively. …"
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article -
447
Reducing terrorism with development ; the United Nations' new path. (c2009)
منشور في 2009احصل على النص الكامل
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masterThesis -
448
Changes in Physical Activity and Sedentary Behavior Amid Confinement: The BKSQ-COVID-19 Project
منشور في 2020"…Among the participants who were regularly involved in PA, the majority (41.8–42.2%) of the participants reported a “decrease” (p<0.05) in walking, jogging, and sports while the majority (46.3–53.1%) reported a “no change” (p<0.05) in swimming, cycling, and weight lifting. …"
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449
Leveraging sentiment analysis of Arabic Tweets for the 2022 FIFA World Cup insights, incorporating the gulf region
منشور في 2024"…After data cleaning, a refined dataset of 43,658 tweets, was categorized into positive, neutral, and negative sentiments based on sentiment scores.</p><h3>Findings</h3><p dir="ltr">Arabic tweets, initially held a positive sentiment towards the World Cup, which increased during the tournament, accompanied by a decrease in negative sentiment.…"
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450
IoT‐based mock oxygenator for extracorporeal membrane oxygenation simulator
منشور في 2023"…For the context of simulation-based training (SBT) oxygenators are often expensive and cannot be recycled owing to contamination issues.</p> <h3> Methods</h3> <p>Consequently, it is advised that the training process include a simulated version of oxygenators to optimize reusability and decrease training expenses. …"
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451
PD-L1 Expression in Human Breast Cancer Stem Cells Is Epigenetically Regulated through Posttranslational Histone Modifications
منشور في 2019"…The active demethylation of PD-L1 promoter was confirmed by the increase in the distribution of 5hmC and decrease in 5mC levels and the upregulation of TET3 and downregulation of DNMTs enzymes in MCF-7 tumorspheres, compared with the cell line. …"
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452
Muscle protein anabolism in type 2 diabetes
منشور في 2013"…Recent findings: T2DM accelerates age-related decreases in muscle mass. This could be related to insulin resistance of whole-body protein anabolism demonstrated in hyperglycemic obese men. …"
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article -
453
Determining the influencing factors in the residential rooftop solar photovoltaic systems adoption: Evidence from a survey in Qatar
منشور في 2022"…<p>Renewable energy sources have developed rapidly, decreased in cost, and proven to have the potential to limit global warming. …"
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454
Walking around the preferred speed: examination of metabolic, perceptual, spatiotemporal and stability parameters
منشور في 2024"…Thirty-four young sedentary adults (18 women) volunteered to walk at seven speeds relative to their PWS in 3-min trials interspaced with 3-min rest intervals. …"
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455
Coping strategies, optimism, and resilience factors associated with mental health outcomes among medical residents exposed to coronavirus disease 2019 in Qatar
منشور في 2023"…Strategies promoting optimism, resilience, and approach coping styles can decrease the mental health burden of the pandemic on medical residents.…"
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456
Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles
منشور في 2019"…The εʹ and dielectric loss (εʹʹ) values for the HA nanoparticles decrease with increase in the applied frequency as well. …"
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457
Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows
منشور في 2023"…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …"
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article -
458
Crunching the numbers of food poisoning in Qatar
منشور في 2016"…The trend was generally decreasing during the investigated time period, which can be attributed to improvements in the food chain and sanitation in the country, they say.…"
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459
Total hip arthroplasty: Evolution of the use of dual mobility cups in Lebanon
منشور في 2018"…Recurrent dislocation, being a major reason for revision total hip arthroplasty (THA), was found to decrease significantly using dual mobility cup (DMC) compared to standard cups (SC), and that in both primary and revision THA. …"
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article -
460
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. …"