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السجلات المعروضة 2975 -- 2994 من 49388
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Are Investors Concerned with Stock Market Upgrades? Evidence from Multivariate Framework Analysis
( Routledge , 2017 , Article)This study aims to examine the return and volatility responses to the announcement of stock market upgrades. It measures the direct effects of the recent Morgan Stanley Capital International (MSCI) upgrade of the Qatar, ... -
Are mangroves in arid environments isolated systems? Life-history and evidence of dietary contribution from inwelling in a mangrove-resident shrimp species
( Elsevier , 2013 , Article)The Arabian Gulf represents one of the more northerly extremes of mangrove distribution in the Indo-Pacific, and is populated only by Avicennia marina, due to its tolerance of high salinity and wide temperature extremes. ... -
Are MENA and Pacific Basin Stock Equity Markets Predictable?
( SAGE publications , 2014 , Article)This research uses variance ratio analysis to test whether Middle Eastern, North African (MENA) and Pacific Basin emerging equity markets follow a martingale behavior during the period1980-2004. The conventional Lo and ... -
Are millennials in Qatar making m-commerce the future of online shopping?
( Inderscience Publishers , 2023 , Article)The emergence of mobile commerce has revolutionised consumers’ buying behaviour, particularly among millennials known to be the key driver of the on-demand economy. This study explored the online purchasing behaviour of ... -
Are Professional Drivers more Aggressive than General Drivers? A Case Study from Doha, Qatar
( Elsevier B.V. , 2022 , Conference Paper)Previous studies have revealed that aggressive and reckless driving can largely affect the occurrence and severity of road crashes. There could be intentional aggressive and unsafe acts, which could significantly affect ... -
Are shocks on the returns and volatility of cryptocurrencies really persistent?
( Elsevier Ltd , 2019 , Article)This letter questions the true nature (true versus spurious) of the Long Range Dependence (LRD) behavior observed in the returns and volatility series of four Cryptocurrencies (CC). Using a robust approach, this letter ... -
Are submarine groundwater discharges affecting the structure and physiological status of rocky intertidal communities?
( Elsevier Ltd , 2018 , Article)This study evaluated the impacts of submarine groundwater discharges (SGD) on a rocky intertidal community of South Portugal, during April–November 2011. Chlorophyll-a concentration was higher at the SGD site in respect ... -
Are Sudanese community pharmacists capable to prescribe and demonstrate asthma inhaler devices to patrons? A mystery patient study
( Grupo de Investigacion en Atencion Farmaceutica , 2012 , Article)Although community pharmacists have become more involved in the care of asthma patients, several studies have assessed pharmacists' ability to illustrate appropriately inhalation technique of different asthma devices. Many ... -
Are U.K. Citizens Satisfied With E-Government Services? Identifying and Testing Antecedents of Satisfaction
( Taylor and Francis Inc. , 2016 , Article)Citizens satisfaction is acknowledged as one of the most significant influences for e-government adoption and diffusion. This study examines the impact of information quality, system quality, trust, and cost on user ... -
Are we closer to a solution for the plastics waste disaster which faces the earth
( BME-PT and GTE , 2019 , Article)[No abstract available] -
Are We Ready for this Disaster? Towards Location Mention Recognition from Crisis Tweets
( Association for Computational Linguistics (ACL) , 2020 , Conference Paper)The widespread usage of Twitter during emergencies has provided a new opportunity and timely resource to crisis responders for various disaster management tasks. Geolocation information of pertinent tweets is crucial for ... -
Area spectral efficiency of cooperative network with DF and AF relaying
( IEEE , 2012 , Conference Paper)Most performance metrics for cooperative networks focus on the qualification of either spectrum efficiency or link reliability, without considering the spatial effect of radio transmission. Area spectral efficiency (ASE) ... -
Area spectral efficiency of cooperative network with opportunistic relaying
( IEEE , 2012 , Conference Paper)In this paper, we investigate the area spectral efficiency (ASE) in a three-node cooperative network with opportunistic relaying. On one hand, in conventional cellular network, ASE is defined to be the average data rate ... -
Area spectral efficiency of infrastructure relay enhanced cellular systems
( Institution of Engineering and Technology , 2016 , Article)In this study, the authors investigate the downlink area spectral efficiency (ASE) of infrastructure relay enhanced cellular systems. ASE for cellular systems is defined as the maximum achievable data rate per unit bandwidth ... -
Area spectral efficiency of underlay cognitive radio transmission over rayleigh fading channels
( IEEE , 2013 , Conference Paper)Cognitive radio is a promising technology to improve the spectrum utilization by allowing the unlicensed (secondary) user share a frequency bandwidth with the licensed (primary) owner under the condition that no harmful ... -
Area-Specific Traffic Peak Hour Timing Using Traffic Signal Detectors: A Case Study of Qatar
( Qatar University Press , 2023 , Conference Paper)This case study addresses peak hour traffic timing in Qatar after COVID-19 as traffic conditions returned to normal. Traffic data were provided for multiple areas, mainly around Doha City. Flow data were obtained from ... -
Areadynamic analysis of GMC sierra pickup truck
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)Computational Fluid Dynamics (CFD) was used to simulate the flow field over a GMC sierra pickup truck double cab (manufactured year of 2005). This simulation model was compared to a previous simulation and experimental ... -
Arguments concerming some strategic concepts in sociology and anthropology
( Qatar University , 1984 , Article) -
Argus: Realistic target coverage by drones
( Association for Computing Machinery, Inc , 2017 , Conference Paper)Low-cost mini-drones with advanced sensing and maneuverability enable a new class of intelligent visual sensing systems. This potential motivated several research eforts to employ drones as standalone surveillance systems ...
