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Now showing items 8793-8812 of 49859
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Effects of acute and chronic exercise on immunological parameters in the elderly aged: Can physical activity counteract the effects of aging?
( Frontiers Media S.A. , 2018 , Article Review)Immunosenescence is characterized by deterioration of the immune system caused by aging which induces changes to innate and adaptive immunity. Immunosenescence affects function and phenotype of immune cells, such as ... -
Effects of ambient climate and three warming treatments on fruit production in an alpine, subarctic meadow community
( Wiley , 2021 , Article)Premise Climate change is having major impacts on alpine and arctic regions, and inter‐annual variations in temperature are likely to increase. How increased climate variability will impact plant reproduction is ... -
Effects of amphiphilic pluronic F127 on the performance of PS/SPEEK blend ultrafiltration membrane: Characterization and antifouling study
( Elsevier Ltd , 2017 , Article)The effect of amphiphilic Pluronic F127 additive on the ultrafiltration performance of polysulfone (PSf)/sulfonated poly (ether ether ketone) (SPEEK) blend flat sheet membranes was investigated in the present work. Fixed ... -
Effects of aniline concentrations on the electrical and mechanical properties of polyaniline polyvinyl alcohol blends
( Elsevier , 2015 , Article)Abstract In this work, we present an exclusive study on the effect of the feeding ratio of the monomer (aniline) on the structural, thermal, mechanical and electrical properties of polyaniline (PANI) polyvinyl alcohol (PVA) ... -
Effects of BA.1/BA.2 subvariant, vaccination, and prior infection on infectiousness of SARS-CoV-2 omicron infections.
( Oxford University Press , 2022 , Article)Compared to BA.1, BA.2 was associated with lower RT-qPCR cycle threshold (Ct) value-3.53 fewer cycles (95% CI: 3.46-3.60), signifying higher infectiousness. This may reflect higher viral load and/or longer duration of ... -
Effects of board and ownership structure on corporate performance: Evidence from GCC countries
( emerald insight , 2014 , Article)Purpose The purpose of this paper is to examine the effect of ownership structure and board composition on bank performance as measured by Tobin's Q and market to book value in Gulf Co-Operation Council (GCC) countries. ... -
The Effects of Board Characteristics and Ownership Structures on Compliance with Mandatory IAS/IFRS Disclosure Requirements: Evidence from Qatar
(2020 , Master Thesis)Compliance with internationally accepted and renowned accounting disclosure requirements has presented itself with having utmost importance in times of increased calls for transparency. This study aims to examine the effect ... -
Effects of bottom substratum on survival and growth of early juveniles of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) in captivity
( Triveni Enterprises , 2018 , Article)Aim : Cannibalism remains a limiting factor during the nursery culture of crabs. This study was undertaken to improvetherearingtechniquesbyinvestigating theimpactofbottom substratum on crablet survival and growth. The ... -
Effects of bottom substratum on survival and growth of early juveniles of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) in captivity
( Triveni Enterprises , 2018 , Article)Aim : Cannibalism remains a limiting factor during the nursery culture of crabs. This study was undertaken to improvetherearingtechniquesbyinvestigating theimpactofbottom substratum on crablet survival and growth. The ... -
EFFECTS OF BUSINESS ANALYTICS CAPABILITIES ON BUDGET GOAL COMMITMENT: THE MEDIATING ROLES OF FORECAST ACCURACY AND BUDGET ADEQUACY
(06-2 , Master Thesis)Budgeting processes rely on the use of existing data to forecast future activities, identify predictable resource consumption and provision patterns, and facilitate resource allocation decisions. Prior research suggests ... -
Effects of calcium hydroxide intracanal medicament on push-out bond strength of endodontic sealers: A systematic review and meta-analysis
( Wiley , 2022 , Article Review)Objective: To investigate the effect of calcium hydroxide intracanal medicament on the push-out bond strength of resin-based and calcium silicate-based endodontic sealers. Methods: A comprehensive search of was conducted ... -
Effects of CH4-CO2 replacement in hydrate-bearing sediments on S-wave velocity and electrical resistivity
( Elsevier , 2020 , Article)CH4-CO2 replacement has been considered as a method for methane production from hydrate-bearing sediments to maintain sediment stability. Sediment stability has been studied at both the particle scale and mesoscale. However, ... -
Effects Of Chemical Pesticides On The Gravid Females And Stadia Of The Woodlouse, Porcellio Scaber (Latreille) (Isopoda, Oniscidea)
( Qatar University , 1991 , Article)Studies were made on the mortality rates of the gravid females, and on the survival and growth rates of the stadia of the woodlouse Porcellio scaber (Latreille) exposed for a period of 21 days to sub-lethal concentrations ... -
Effects of Chitosan and Natamycin on Vacuum-Packaged Phyllo: A Pastry Product.
( International Association for Food Protection , 2018 , Article)The effects of vacuum packaging, chitosan (1.5%, w/v), and natamycin (10 mg/L, w/v) on phyllo pastry quality were studied by monitoring microbiological, chemical, and sensory changes. Five lots were prepared with or without ... -
The effects of citizenship status on service utilization and general satisfaction with healthcare: a cross-cultural study
( Oxford University Press , 2016 , Article)Objective: To explore the role of citizenship status as a predictor of general satisfaction with healthcare services in Qatar, including potential interaction with utilization and health insurance coverage type. Design: ... -
Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes
( Frontiers Media , 2021 , Article)Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance ... -
Effects of Colombian oregano essential oil (Lippia origanoides Kunth) and Eimeria species on broiler production and cecal microbiota.
( Oxford University Press , 2019 , Article)The gut microbiota has an important effect on poultry health and production. The aim of this study was to evaluate the effect of Colombian oregano (COO), Lippia origanoides Kunth, essential oil supplementation on broiler ... -
Effects of Combined Calcium Hypochlorite and Chlorine Dioxide on Drinking Water Quality in Qatar and Disinfection by Products Formation
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Chlorite, chlorate, bromate and trihalomethane's (THMs) are included in WHO guidelines for drinking water quality. This study examined dosing different chlorine concentrations as calcium hypochlorite (Ca(ClO)2) to water ... -
Effects of combined calcium hypochlorite and chlorine dioxide on drinking water quality in Qatar and disinfection by-products formation
( Desalination Publications , 2017 , Article)Chlorite, chlorate, bromate and trihalo methanes (THMs) are included in WHO guidelines for drinking water quality. This study examined dosing different chlorine concentrations as calcium hypochlorite (Ca(ClO)2 ) to water ... -
The effects of complementarity of knowledge and capabilities on joint innovation capabilities and service innovation: The role of competitive intensity and demand uncertainty
( Elsevier , 2020 , Article)Service innovation has become increasingly important for the growth of developed and developing countries. Despite an extensive body of literature on the role of joint innovation capabilities in improving a firm's ...