Concordia University

About: Concordia University is a education organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Control theory & Population. The organization has 13565 authors who have published 31084 publications receiving 783525 citations. The organization is also known as: Sir George Williams University & Loyola College, Montreal.

A Survey on Service-Oriented Network Virtualization Toward Convergence of Networking and Cloud Computing

Abstract: The crucial role that networking plays in Cloud computing calls for a holistic vision that allows combined control, management, and optimization of both networking and computing resources in a Cloud environment, which leads to a convergence of networking and Cloud computing. Network virtualization is being adopted in both telecommunications and the Internet as a key attribute for the next generation networking. Virtualization, as a potential enabler of profound changes in both communications and computing domains, is expected to bridge the gap between these two fields. Service-Oriented Architecture (SOA), when applied in network virtualization, enables a Network-as-a-Service (NaaS) paradigm that may greatly facilitate the convergence of networking and Cloud computing. Recently the application of SOA in network virtualization has attracted extensive interest from both academia and industry. Although numerous relevant research works have been published, they are currently scattered across multiple fields in the literature, including telecommunications, computer networking, Web services, and Cloud computing. In this article we present a comprehensive survey on the latest developments in service-oriented network virtualization for supporting Cloud computing, particularly from a perspective of network and Cloud convergence through NaaS. Specifically, we first introduce the SOA principle and review recent research progress on applying SOA to support network virtualization in both telecommunications and the Internet. Then we present a framework of network-Cloud convergence based on service-oriented network virtualization and give a survey on key technologies for realizing NaaS, mainly focusing on state of the art of network service description, discovery, and composition. We also discuss the challenges brought in by network-Cloud convergence to these technologies and research opportunities available in these areas, with a hope to arouse the research community's interest in this emerging interdisciplinary field.

Champions of technological innovation: The influence of contextual knowledge, role orientation, idea generation, and idea promotion on champion emergence

Abstract: This study examined the role that champions play in the generation and promotion of ideas in the innovation process, and considered the influence of flexible role orientation and contextual knowledge in this process. Content analysis of interview transcripts from 19 matched pairs of champions and nonchampions revealed that flexible role orientation was positively related to idea generation, and contextual knowledge was positively related to packaging ideas for promotion. Idea generation was positively related to promoting ideas through informal and formal channels. Finally, in comparison with nonchampions, champions demonstrated more enthusiastic support for new ideas, tied the innovation to a greater variety of positive organizational outcomes, and used informal selling processes more often during idea promotion.

Demythologizing Consumption Practices: How Consumers Protect Their Field-Dependent Identity Investments from Devaluing Marketplace Myths

Abstract: Marketplace myths are commonly conceptualized as cultural resources that attract consumers to a consumption activity or brand. This theoretical orientation is prone to overstating the extent to which consumers' identity investments in a field of consumption are motivated by an associated marketplace myth. We provide a theoretical corrective to this tendency by investigating consumers who have become vested in a commercially mythologized consumption field through an incremental process of building social connections and cultural capital. For these consumers, the prevailing marketplace myth is experienced as a trivialization of their aesthetic interests, rather than as a source of identity value. In response, they employ demythologizing practices to insulate their acquired field-dependent social and cultural capital from devaluation. Our findings advance theorizations concerning marketplace myths and consumer identity work and explicate the sociocultural forces that deter consumers from abandoning a consump...

Environmental challenges for the belt and road initiative

Abstract: The Belt and Road Initiative will greatly influence the future of global trade. However, it may also promote permanent environmental degradation. We call for rigorous strategic environmental and social assessments, raising the bar for environmental protection worldwide.

Early Musical Training and White-Matter Plasticity in the Corpus Callosum: Evidence for a Sensitive Period

Abstract: Training during a sensitive period in development may have greater effects on brain structure and behavior than training later in life. Musicians are an excellent model for investigating sensitive periods because training starts early and can be quantified. Previous studies suggested that early training might be related to greater amounts of white matter in the corpus callosum, but did not control for length of training or identify behavioral correlates of structural change. The current study compared white-matter organization using diffusion tensor imaging in early- and late-trained musicians matched for years of training and experience. We found that early-trained musicians had greater connectivity in the posterior midbody/isthmus of the corpus callosum and that fractional anisotropy in this region was related to age of onset of training and sensorimotor synchronization performance. We propose that training before the age of 7 years results in changes in white-matter connectivity that may serve as a scaffold upon which ongoing experience can build.