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Now showing items 3899-3918 of 48376
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BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar.
( Nature Researc , 2021 , Article)With the global expansion of the highly transmissible SARS-CoV-2 Delta (B.1.617.2) variant, we conducted a matched test-negative case-control study to assess the real-world effectiveness of COVID-19 messenger RNA vaccines ... -
BNT162b2 antigen dose and SARS-CoV-2 omicron infection in adolescents
( Elsevier , 2023 , Other)COVID-19 vaccine antigen dose might affect protection against SARS-CoV-2 infection,1, 2 but direct evidence to quantify this effect is absent. We conducted a matched, retrospective, cohort study using a regression ... -
Board Diversity and Financial Performance: Empirical Evidence From The United Kingdom
( Emerald , 2021 , Article)Purpose: This study aims to investigate the relationship between board diversity and financial performance from a wide perspective, including multiple dimensions of board diversity. -
Board diversity and firm performance: empirical evidence from the united kingdom
(2019 , Master Thesis)This study examines the relationship between board diversity and firms’ performance in the UK by examining cross-sectional data for 2013–2016 from the Financial Times Stock Exchange (FTSE) 350 companies. Board diversity ... -
Board gender diversity, governance and Egyptian listed firms' performance
( Emerald , 2021 , Article)Purpose: The study aimed to examine the effect of corporate governance mechanisms on the performance of Egyptian firms listed in the Egyptian Stock Exchange (EGX) between 2014 and 2016. Design/methodology/approach: We ... -
Board of directors' composition and carbon emission performance
( Inderscience Publishers , 2023 , Article)The current study examines the relationship between the composition of the board of directors and the three scopes of carbon emission performance as detailed in the Carbon Disclosure Project (CDP) annual reports. The study ... -
BOARD SIZE AND FIRM PERFORMANCE: CASE OF KUWAIT
( Qatar University Press , 2021 , Article)This study examined the relationship between board size and firm performance using a sample of 110 non-financial listed firms on the Kuwait Stock Exchange (KSE) from 2009 to 2017 (9 years). Empirical tests were conducted ... -
Board structure, intellectual capital, cost of capital and firm performance - A path analysis model
(2020 , Master Thesis)This study examines the indirect relationship between board structure and firm performance with the mediating effect of intellectual capital and cost of capital. In addition, the study examines the total, direct and indirect ... -
Body composition, blood pressure and dietary habits among young qatari male adults
(2013 , Poster)Introduction: Due to a rapidly changing lifestyle in Qatar, determinants of non-communicable diseases and linked levels of risk factors have risen. These facts pose a national challenge (1). Information about Qatari adults` ... -
Body mass index and risk of Parkinson, Alzheimer, Dementia, and Dementia mortality: a systematic review and dose-response meta-analysis of cohort studies among 5 million participants
( Taylor and Francis Ltd. , 2022 , Article Review)Objective: Inconsistent results regarding the association between the Body Mass Index (BMI) and brain disorders have been reported. We performed this study to investigate the association between BMI and risk of Parkinson, ... -
Body Shape Index Is a Stronger Predictor of Diabetes.
( MDPI , 2019 , Article)Anthropometric indicators can predict the development of diabetes among adults. Among them, a new indicator (Body Shape Index) was developed. Several cohort observational studies have demonstrated that A Body Shape Index ... -
Bond and shear-strengthening performance of FRCM composites
( ISEC Press , 2019 , Conference Paper)This paper is aimed at studying the bond and shear-strengthening performance of fabric reinforced cementitious matrix (FRCM) systems. Three FRCM systems were compared, namely, polyparaphenylene benzobisoxazole (PBO)-FRCM, ... -
Bond characteristics of different FRCM systems
( Elsevier , 2018 , Article)© 2018 Elsevier Ltd Fabric-reinforced cementitious matrix (FRCM) composites are usually applied on the concrete surface for the purpose of strengthening reinforced concrete structures. The efficiency of FRCM as a strengthening ... -
Bond durability and service life prediction of BFRP bars to steel FRC under aggressive environmental conditions
( Elsevier , 2021 , Article)This study presents an experimental investigation on the bond durability of helically wrapped basalt fiber reinforced polymer (BFRP) bars embedded in plain and steel fiber reinforced concrete (SFRC) under the combined ... -
Bond Durability of Basalt Fiber Reinforced Polymer Bars Embedded in Fiber Reinforced Concrete under the Effect of Saline Environment and Elevated Temperatures
(2019 , Master Thesis)Fiber-reinforced polymer (FRP) is promising to be an alternative solution for conventional steel to prevent the fast infrastructures' deterioration. Moreover, FRPs are utilized by the construction industry to improve the ... -
Bond durability of basalt FRP bars to fiber reinforced concrete in a saline environment
( Elsevier , 2020 , Article)This study investigates the influence of basalt fiber reinforced concrete (BFRC) on the bond durability of helically wrapped basalt fiber reinforced polymers (HWBFRP) bars subjected to harsh saline environmental conditions. ... -
Bond Performance of Near-Surface Mounted BFRP Bars to Concrete
( Qatar University Press , 2023 , Conference Paper)This paper presents the test results of a study on the bond performance of near-surface mounted (NSM) basalt fiber reinforced polymer (BFRP) bars to concrete. Twelve C-shape concrete specimens were tested under direct ... -
Bond performance of tensile lap-spliced basalt-FRP reinforcement in high-strength concrete beams
( Elsevier , 2022 , Article)This paper investigates the bond between high-strength concrete (HSC) and tensile lap-spliced basalt fiber-reinforced polymer (BFRP) bars. Ten large-scale BFRP-reinforced concrete beams (300 x 450 x 3900 mm) were fabricated ... -
Bone benefits of fish oil supplementation depend on its EPA and DHA content
( MDPI AG , 2019 , Article)The preventive effect of high-dose (9%) regular-fish oil (FO) against bone loss during aging has been demonstrated, but the effects of a low-dose (1%–4%) of a highly purified concentrated FO (CFO) has not been elucidated. ... -
Bone marrow mesenchymal stem cells preconditioned with nitric-oxide-releasing chitosan/PVA hydrogel accelerate diabetic wound healing in rabbits
( IOP Publishing Ltd , 2021 , Article)Impaired diabetic wounds are one of the major pathophysiological complications caused by persistent microbial infections, prolonged inflammation, and insufficient angiogenic responses. Here, we report the development of ...
