The nexus between debt structure, firm performance, and the financial crisis: non-linear panel data evidence from Japan حسب Rami Zeitun (17075215)

"…<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. …"

Mixed precision iterative refinement with adaptive precision sparse approximate inverse preconditioning حسب Noaman Khan (19810050)

"…<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. …"

Serum 25-hydroxyvitamin D concentrations are inversely associated with body adiposity measurements but the association with bone mass is non-linear in postmenopausal women حسب Vijay, Ganji

"…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 حسب Vijay Ganji (8710491)

"…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.…"

Investigating the Impact of Salinity Variations on Aerobic Granules and Activated Sludge Flocs: Emphasis on Performance Monitoring and Identification of Influential Salinity Compon... حسب Raghavendran Sivasubramanian (16931775)

Analyzing the Influence of Climate and Anthropogenic Development on Vegetation Cover in the Coastal Ecosystems of GCC حسب Abhilash Dutta Roy (22466830)

"…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. …"

Preterm birth in low-middle income Countries حسب Alim, Swarray-Deen

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A customised fetal growth and birthweight standard for Qatar: a population-based cohort study حسب Thomas Farrell (3933833)

"…</p><h3>Methods</h3><p dir="ltr">The PEARL registry data on women delivering in Qatar (2017–2018) was used to develop a multivariable linear regression model predicting optimal birthweight. …"

Do near-bedtime usage of smartphones and problematic internet usage really impact sleep? A study based on objectively recorded usage data حسب Aftab Alam (5158601)

"…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. …"

Formation of Trihalomethanes during Seawater Chlorination حسب Ahmed Abdel-Wahab (1748986)

"…Chlorination of seawater has shown significant increase in total THMs (TTHMs) and in bromoform concentrations. …"

Khalasa date palm leaf fiber as a potential reinforcement for polymeric composite materials حسب Elsadig Mahdi (9967349)

"…CE proposes a paradigm shift from a linear economy to a circular economy with the principles of 3Rs: reduce, reuse, and recycle. …"

High-Performance Acetic Acid Sensing Using Cerium-MoS₂ Composite for Beverages and Food Processing Industry حسب E. Safamariyam (22330186)

"…Furthermore, the repeatability of the Ce_0.6 -MoS₂ sensor was assessed over 30 days, and a marginal decrease of 5% in response was observed from day 1 to day 30.…"

Unpacking the asymmetric impact of exchange rate volatility on trade flows: A study of selected developed and developing Asian economies حسب Umar Nawaz Kayani (17131781)

"…The non-linear models yielded more significant findings, while the linear models did not indicate any significant effects of exchange rate volatility on trade flows. …"

Associations between Bone Mineral Density and WOMAC Scores in Healthy Individuals: Insights from the Qatar Biobank حسب Al-Hamdani, Mohammed

"…However, BMD measures significantly contributed to predicting stiffness after controlling for sociodemographic variables (R2 = 0.065, ΔF(7, 1724) = 3.34, p = 0.002), with a higher total body BMD associated with increased stiffness and a higher trunk BMD associated with decreased stiffness. …"
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Associations between Bone Mineral Density and WOMAC Scores in Healthy Individuals: Insights from the Qatar Biobank حسب Mohammed Al-Hamdani (16962702)

"…However, BMD measures significantly contributed to predicting stiffness after controlling for sociodemographic variables (R² = 0.065, ΔF(7, 1724) = 3.34, p= 0.002), with a higher total body BMD associated with increased stiffness and a higher trunk BMD associated with decreased stiffness. …"

Exponential Particle Swarm Optimization for Global Optimization حسب Khelil Kassoul (18441114)

"…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. …"

Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abdelrahman Abushanab (17268940)

"…It was also shown that the addition of FA significantly decreased the chloride permeability of TWW concrete by 55%–71%. …"

Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar حسب John M., Rivers

"…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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Healthcare Professionals' Attitudes Toward Patients With Mental Illness: A Cross-Sectional Study in Qatar حسب Suhaila Ghuloum (796180)

"…Descriptive statistics along with multivariate linear and multivariate logistic regression models were used.…"

Peripheral inflammatory and metabolic markers as potential biomarkers in treatment-resistant schizophrenia: Insights from a Qatari Cohort حسب Mohamed Adil Shah Khoodoruth (14589828)

"…Linear regression analysis revealed that MLR and clozapine treatment were significantly correlated with the severity of schizophrenia symptoms. …"