Browsing Research Units by Title
Now showing items 1099-1118 of 4569
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Drivers of employee entrepreneurial intention: a study of the oil and gas sector in Qatar
( Inderscience Publishers , 2023 , Article)Many employees are opting to start new businesses while working full-time for established firms. Although employee entrepreneurship has attracted much attention recently, very little is known on what motivates employees ... -
Drivers' perceptions of smartphone applications for real-time route planning and distracted driving prevention
( Hindawi Limited , 2019 , Article)Given the increasing importance and availability of traffic-related smartphone applications, understanding their potential use is vital, especially in developing countries. This research explores motorist perceptions of ... -
Drivers’ estimation of their travelling speed: a study on an expressway and a local road
( Taylor and Francis Ltd. , 2019 , Article)Correctly estimating the travelling speed is essential for safety on the roads to ensure safer interactions with other drivers and to avoid violations of traffic regulations. Therefore, it is important to create understanding ... -
Drivers’ perceptions of the sharing economy for transport services
( Elsevier Inc. , 2022 , Article)The sharing economy (SE) has been studied from various perspectives, but ridesharing is a particularly popular type of SE that has manifested around the world. Prior studies of the SE have largely explored customers’ ... -
Drivers� crossing behaviour between express and local lanes with soft separation: A driving simulator study
( Gioacchino Onorati Editore , 2018 , Article)In different countries, hard separation is adopted as a technique to separate express and local lanes. However, in case of an incident, especially on the express lane, traffic jams can occur as there is no escape route. ... -
Driving behavior classification at signalized intersections using vehicle kinematics: Application of unsupervised machine learning
( Taylor & Francis , 2022 , Article)Driving behavior is considered as a unique driving habit of each driver and has a significant impact on road safety. This study proposed a novel data-driven Machine Learning framework that can classify driving behavior at ... -
Driving simulation sickness and the sense of presence: Correlation and contributing factors
( Elsevier Ltd , 2021 , Article)Driving simulators are useful and effective tools for conducting studies in the field of traffic safety. Simulation sickness (SS) and the sense of presence (SP) are two well-known factors that could affect the results of ... -
Drug release kinetics from a drug-eluting stent with asymmetrical coat
( IMR Press Limited , 2017 , Article)The aim of this study was to investigate the drug release profiles of biodegradable polymer sirolimus- or paclitaxel-eluting stents with asymmetrical coating (BPSES-A or BPPES-A) both in vitro and in vivo. In vitro, the ... -
Drug-clay nanohybrids as sustained delivery systems
( Elsevier Ltd , 2016 , Article)Biocompatible 2-dimensional layered compounds such as clays and layered double hydroxides (anionic clays) have been explored and utilized in drug delivery system for therapeutic application because they can safely encapsulate ... -
Dry ice-mediated rational synthesis of edge-carboxylated crumpled graphene nanosheets for selective and prompt hydrolysis of cellulose and eucalyptus lignocellulose under ambient reaction conditions
( Royal Society of Chemistry , 2020 , Article)Edge-selectively carboxylated graphene (ECG) crumpled nanosheets are of great importance in potential applications; however, their catalytic activity towards biomass hydrolysis is not yet highlighted. Herein, we rationally ... -
Dry mesophilic anaerobic co-digestion of vegetable wastes with animal manures using leach bed reactor
( Springer Science and Business Media Deutschland GmbH , 2023 , Article)Anaerobic digestion is an environmentally sustainable technology for converting a variety of organic solid feedstocks to energy in the form of methane. To improve methane yield, the digestion of more than one waste is ... -
Dry sliding tribological properties of a hard anodized aa6082 aluminum alloy
( MDPI AG , 2020 , Article)The applications of aluminum and its alloys are still limited by low hardness and low wear resistance properties. Surface modifications, such anodizing and plasma electrolytic oxidation, represent a feasible way to overcome ... -
DSC investigation of the gelation kinetics of emulsified PAM/PEI system: Influence of surfactants and retarders
( Springer Netherlands , 2015 , Article)Water production in the oilfields has a negative impact on the production and economy. It is highly desired to shut off water paths without affecting the hydrocarbon zones. Polymer gels are frequently used for water control ... -
Dual cationic modified high Ni-low co layered oxide cathode with a heteroepitaxial interface for high energy-density lithium-ion batteries
( Elsevier , 2021 , Article)Lithium-ion batteries (LIBs) with high energy density, safety with longer service life, cost-effectiveness, and superior cycling stability is a demand to achieve the driving range of 300 miles per charge in electric vehicles ... -
Dual donor bulk-heterojunction to realize a quick and more sensitive organic visible photodector
( Springer , 2018 , Article)© 2018, Springer Science+Business Media, LLC, part of Springer Nature. We present herein, an interpenetrating organic dual donor bulk-heterojunction platform for promising visible light sensing utility. The photoactive ... -
Dual Role of Lanthanum Oxide Nanoparticles Functionalized Co-Polymeric Micelle for Extended Anti-Cancer Drug Delivery
( Wiley-Blackwell , 2019 , Article)In this study, the paclitaxel (PTX) - loaded A?B type di-block polymeric micelles poly xylitol sebacate-poly methylmethacrylic acid/Lanthanum Oxide/paclitaxel (PXS-PMAA/LO/PTX) were designed and Lanthanum oxide nanoparticles ... -
The Dual Specificity Role of Transcription Factor FOXO in Type 2-diabetes and Cancer
( Bentham Science Publishers , 2018 , Article Review)The FOXO (Forkhead box O) transcription factors are implicated in several signaling pathways and play a vital role in various cellular and physiological processes include for instance, ROS (reactive oxygen species) response, ... -
Dual targeting of carbonic anhydrase and vascular endothelial growth factor as an innovative approach in developing potential cancer-fighting candidates for the management of hypoxic malignancies
( Qatar University Young Scientists Center - Qatar University , 2024 , Conference Paper)Cancer poses a global challenge, and the Middle East is not immune to its impact. According to a 2020 published study, nearly half a million new cancer cases were detected in Arab countries, which equates to approximately ... -
Durability and Microstructure of Cement Composites Containing Qatar's Municipal Wastes
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Qatar produces more than 2.5 million tons of municipal waste per year with an average waste generation rate of 1.8 kg/day/capita which is one of the highest rates in the world. The rapid growth of municipal solid waste has ... -
Durability characteristics of high and ultra-high performance concretes
( Elsevier , 2021 , Article)Durability characteristics of high-performance concrete (HPC) and ultra-high performance concrete (UHPC) are evaluated in comparison to normal strength concrete (NSC). HPC and UHPC are cast using commonly available materials ...