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The nexus between debt structure, firm performance, and the financial crisis: non-linear panel data evidence from Japan
Published 2022“…<p dir="ltr">This study seeks to analyze the non-linear relationship between a firm’s debt structure and performance based on evidence from Japan through the use of a panel data fixed effects model for a sample of 1,670 listed firms. …”
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Mixed precision iterative refinement with adaptive precision sparse approximate inverse preconditioning
Published 2025“…<p dir="ltr">Hardware trends have motivated the development of mixed precision algorithms in numerical linear algebra, which aim to decrease runtime while maintaining acceptable accuracy. …”
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A GRASP Approach for Solving Large-Scale Electric Bus Scheduling Problems
Published 2021“…The results of the conducted computational experiments indicate that an increase in infrastructure investment through high speed chargers can significantly decrease the size of the necessary fleets. …”
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Serum 25-hydroxyvitamin D concentrations are inversely associated with body adiposity measurements but the association with bone mass is non-linear in postmenopausal women
Published 2021“…In a continuous variable analysis, the association between 25(OH)D and bone mass was significant, non-linear, inverse ‘U’. In conclusion, serum 25-hydroxyvitamin D was inversely associated with adiposity measures and non-linearly associated to bone mass in postmenopausal Qatari women.…”
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Serum 25-hydroxyvitamin D concentrations are inversely associated with body adiposity measurements but the association with bone mass is non-linear in postmenopausal women
Published 2021“…In a continuous variable analysis, the association between 25(OH)D and bone mass was significant, non-linear, inverse ‘U’. In conclusion, serum 25-hydroxyvitamin D was inversely associated with adiposity measures and non-linearly associated to bone mass in postmenopausal Qatari women.…”
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Investigating the Impact of Salinity Variations on Aerobic Granules and Activated Sludge Flocs: Emphasis on Performance Monitoring and Identification of Influential Salinity Compon...
Published 2022“…Immediate increase in polysaccharide concentrations was observed where Na<sub>2</sub>SO<sub>4</sub> >> KCl > NaCl and was the predominant reason for the large changes in sludge morphology. Consequent to the changes in the extracellular polymeric substances (EPS), there was an immediate decrease in sludge hydrophobicity resulting in a deterioration of settling, indicated by an increase in the sludge volume index (SVI), and loss of biomass for all the reactors. …”
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Analyzing the Influence of Climate and Anthropogenic Development on Vegetation Cover in the Coastal Ecosystems of GCC
Published 2025“…Our results revealed significant changes in land cover, as seen by an increase in artificial built-up areas by 15.5% in two decades and a corresponding decrease in bareland and dense vegetation. …”
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Preterm birth in low-middle income Countries
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COVID-19 biomarkers for severity mapped to polycystic ovary syndrome
Published 2020“…<p dir="ltr">Large scale multi-omics analysis has identified significant differences in the biomarkers between COVID-19 disease and control subjects [1]. …”
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A customised fetal growth and birthweight standard for Qatar: a population-based cohort study
Published 2024“…Constitutional coefficients significantly affecting birthweight were gestational age, height, weight, and parity. …”
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Initial approximation of the implications for architecture due to climate change
Published 2019“…In general, it can be concluded that future heating demand could decrease (7–52%), while cooling demand could increase significantly (up to 1050%). …”
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Exponential Particle Swarm Optimization for Global Optimization
Published 2022“…The leaping strategy is integrated into the velocity equation and a new linear decreasing cognitive parameter (including a dynamic inertia weight strategy) is integrated into the proposed method. …”
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Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar
Published 2020“…The overall landward increase in salinity is accompanied by a decrease in the diversity of benthic fauna and their skeletal remains. …”
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Optimizing the number of players and training bout durations in soccer small‐sided games: Effects on mood balance and technical performance
Published 2025“…Therefore, coaches should consider longer continuous bouts when planning SSGs‐based training to significantly decrease TMD and enhance technical‐tactical performance in soccer SSGs.…”
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Qatar’s immigrants at higher risk of diabetes
Published 2015“…They found that one fifth of the study participants had elevated glycated haemoglobin levels, but more significantly, there were large differences between the ethnic groups studied. …”
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Do near-bedtime usage of smartphones and problematic internet usage really impact sleep? A study based on objectively recorded usage data
Published 2023“…Regarding sleep distraction, multivariate linear regression analysis revealed that two hours before sleep was a significant and positive predictor of sleep distraction (β = 0.197, p = 0.003), whereas PIU was not significant. …”
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Redox Homeostasis and Inflammation Responses to Training in Adolescent Athletes: a Systematic Review and Meta-analysis
Published 2020“…</p><h3>Conclusions</h3><p dir="ltr">The results showed significant alterations in oxidative stress and cytokine levels after acute exercise, ranging from moderate to extremely large. …”
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Formation of Trihalomethanes during Seawater Chlorination
Published 2010“…Chlorination of seawater has shown significant increase in total THMs (TTHMs) and in bromoform concentrations. …”
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An Improved Genghis Khan Optimizer based on Enhanced Solution Quality Strategy for Global Optimization and Feature Selection Problems
Published 2024“…Feature selection (FS) is the activity of defining the most contributing feature subset among all used features to improve the superiority of datasets with a large number of dimensions by selecting significant features and eliminating redundant and irrelevant ones. …”
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Khalasa date palm leaf fiber as a potential reinforcement for polymeric composite materials
Published 2021“…CE proposes a paradigm shift from a linear economy to a circular economy with the principles of 3Rs: reduce, reuse, and recycle. …”