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Systems Around The World (system + around_the_world)
Selected AbstractsTK-AKA: using temporary key on Authentication and Key Agreement protocol on UMTSINTERNATIONAL JOURNAL OF NETWORK MANAGEMENT, Issue 4 2009Hsia-Hung Ou Mobile communication is definitely one of the major high-technology applications that offer present-day people a modern life of appropriate convenience. In recent years, the third-generation cell phone system has approached maturity. The Universal Mobile Telecommunication System (UMTS) is currently the most widely used system around the world. The Third Generation Partnership Project is equipped with the Authentication and Key Agreement (AKA) protocol to maintain secrecy and security both during the authentication process and during the telecommunication session through UMTS. However, Hung and Li have pointed out that the UMTS-AKA protocol has three problems, involving bandwidth consumption, space overhead and synchronization of the sequence number, which are yet to be resolved. In addition, they have proposed an extension of the UMTS-AKA protocol, named the X-AKA protocol, to overcome these obstacles. Nevertheless, the X-AKA protocol too appears to have problems of its own. In this article, the weaknesses of X-AKA are enumerated. In addition, a more practical AKA protocol for UMTS is presented. The new protocol, based on the same framework as its predecessor, proves to be more efficient and practical, satisfying the requirements of modern living. Copyright © 2008 John Wiley & Sons, Ltd. [source] Management of type 2 diabetes: the GLP-1 pathwayFUTURE PRESCRIBER, Issue 3 2008Abd A Tahrani MMedSci Type 2 diabetes mellitus (T2DM) is a major challenge to healthcare systems around the world, with an estimated prevalence of 6% (246 million) in 2007 rising to 7.3% (380 million) in 2025 worldwide.1,5 In this article, the authors consider the significance of the GLP-1 path-way in the management of T2DM, and some of the advantages of incretin-based therapy. Copyright © 2008 John Wiley & Sons, Ltd. [source] Measuring and reporting on quality in health care: A framework and road map for improving careJOURNAL OF SURGICAL ONCOLOGY, Issue 8 2009Susan E. Brien PhD Abstract Quality of care measurement and reporting at the provider, hospital, or health system level has become increasingly common in health systems around the world. Health system performance reports, whether they be confidentially distributed to the provider or made available to the public, are not only used as a stimulus for quality improvement, but can also be used to inform policy, apportion funding, or in rare cases, punish poorly performing providers. In this review, we outline several principles of quality of healthcare measurement and performance reporting, and describe a framework for optimal performance reporting that provides the greatest opportunity for the desired outcome,health system improvement. The quality reporting framework and roadmap that we present invokes opportunities for improving care in the domain of surgical oncology. J. Surg. Oncol. 2009;99:462,466. © 2009 Wiley-Liss, Inc. [source] Restoration Ecology and Invasive Riparian Plants: An Introduction to the Special Section on Tamarix spp. in Western North AmericaRESTORATION ECOLOGY, Issue 1 2008Patrick B. Shafroth Abstract River systems around the world are subject to various perturbations, including the colonization and spread of non-native species in riparian zones. Riparian resource managers are commonly engaged in efforts to control problematic non-native species and restore native habitats. In western North America, small Eurasian trees or shrubs in the genus Tamarix occupy hundreds of thousands of hectares of riparian lands, and are the targets of substantial and costly control efforts and associated restoration activities. Still, significant information gaps exist regarding approaches used in control and restoration efforts and their effects on riparian ecosystems. In this special section of papers, eight articles address various aspects of control and restoration associated with Tamarix spp. These include articles focused on planning restoration and revegetation; a synthetic analysis of past restoration efforts; and several specific research endeavors examining plant responses, water use, and various wildlife responses (including birds, butterflies, and lizards). These articles represent important additions to the Tamarix spp. literature and contain many lessons and insights that should be transferable to other analogous situations in river systems globally. [source] | ||||||||||