background: the number of people aged 60 and older is increasing faster than other age groups worldwide. iran will experience a sharp aging population increase in the next decades, and this will pose new challenges to the healthcare system. since providing high quality aged-care services would be the major concern of the policymakers, this question arises that what types of aged care services s...

Background: In the context of the recent Greek economic crisis and its detrimental impact on healthcare system as well as the complete absence of a mechanism to map and plan human resources, a need for rethinking healthcare workforce management at a national level was emerged. Objectives: The aim of the study was to identify factors that influence the current and future demand for and supply of...

In this paper we develop a novel propositional semantics based on the framework of branching time. The basic idea is to replace the moment-history pairs employed as parameters of truth in the standard Ockhamist semantics by pairs consisting of a moment and a consistent, downward closed set of so-called transitions. Whereas histories represent complete possible courses of events, sets of transit...

Iris Braun ist seit 1997 Mitarbeiterin am Lehrstuhl Rechnernetze der TU Dresden und in zahlreiche nationale und internationale Forschungsprojekte involviert. Nach Abschluss Ihrer Dissertation übernahm sie die Einwerbung und Koordination verschiedener Projekte im SOA-Umfeld. Beispielsweise beteiligt sich ihre Forschergruppe am BMWILeuchtturmprojekt THESEUS und ist im Use Case TEXO für die Unters...

Based on goal setting theory, this study explores the positive effect and influencing process of authoritarian leadership on employee performance, as well as the moderating role of individual power distance in this process. Data from 211 supervisor-subordinate dyads in Chinese organizations indicates that authoritarian leadership is positively associated with employee performance, and learning ...

We have been considering the architecture of the future carrier network which will be the successor to Next Generation Network (NGN). Our assessments have clarified the key problems that will arise in the era when NGN has matured. Based on our studies, we define the vision and the architecture that can solve these problems. This paper provides a snapshot of our work in order to contribute to re...

Testing and evaluating new architectural propositions is a challenge. Given the usual variety of technologies and scales involved in the necessary evaluation, a one-size-fits-all approach does hardly suffice. Instead, a collection of evaluation and experimentation methods must be chosen for a comprehensive testing of the proposed solutions. This paper outlines some of the approaches chosen for ...

The classic Internet architecture is a victim of its own success. Having succeeded so well at empowering users and encouraging innovation, it has been made obsolete by explosive growth in users, traffic, applications, and threats. For the past decade, the networking community has been focused on the many deficiencies of the current Internet and the possible paths toward a better future Internet...

where Ed= fl, bkEZ2,, k 2 1, and with some constraints on bk and sk. Usually we will assume that x is irrational, and thus that the expansion (1.1) is infinite. A special case of an SRCF is the regular continuedfraction, RCF, which is obtained by taking ck = 1 for every k in (1.1). The aim in introducing the OCF was to optimize two things simultaneously. In the first place one wishes the conver...

The lack of abstraction in a growing semantic, virtual and abstract world poses new challenges for assessing security and QoS tradeoffs. For example, in Future Internet scenarios, where Unified Communications (UC) will take place, being able to predict the final devices that will form the network is not always possible. Without this information the analysis of the security and QoS tradeoff can ...