The service provision problem described in this paper comes from an application of distributed processing in telecommunication networks. The objective is to maximize a service provider's proot from ooering computational based services to customers. The services are built from software applications called subservices. The service provider has limited capacity of some resources and therefore must...

Delivering multimedia services to roaming subscribers raises significant challenges for content providers. There are a number of reasons for this; however, the principal difficulties arise from the inherent differences between the nature of mobile computing usage, and that of its static counterpart. The harnessing of appropriate contextual elements pertaining to a mobile subscriber at any given...

Ad hoc networks are formed opportunistically as mobile devices come within wireless communication range of each other. Since individual devices are typically subject to severe resource limitations, it is both possible and desirable for a device to enhance its functionality by taking advantage (in a cooperative manner) of capabilities available on other devices. Service provision refers to the p...

Femtocells can effectively resolve the poor connectivity issue of indoor cellular users. This paper investigates the economic incentive for the cellular operator to add femtocell service on top of its existing macrocell service. We model the interactions between a cellular operator and users as a Stackelberg game: in Stage I the operator determines spectrum allocations and pricing decisions of ...

The client-server model continues to dominate distributed computing with increasingly more flexible variants being deployed. Many are centered on the notion of discovering services at run time and on allowing any system component to act as a service provider. The result is a growing reliance on the service registration and discovery mechanisms. This paper addresses the issue of facilitating suc...

Many of the factors that are driving the development and the adoption of grids, such as scale, dynamic and distributed characteristics and heterogeneity, are also pushing to the forefront service quality issues in grid computing. These include performance, reliability and security. Although grid middleware can address some of these issues, it has become imperative to ensure adequate service pro...

The generic term 'psychosis' is enduring but imprecise and the traditional division between neurosis and psychosis will be discouraged in the 10th revision oftheIntemnational Classification of Diseases (ICD-10), to be published in 1992.' However, it is used in ICD-92 and in the Diagnostic and Statistical Manual of Mental Disorders (DSM-III-R). It still has an established place in psychiatric pa...

This type of model is similar to Bernus’s “Abstract” (Bernus 1998) reference models or Loo’s “Generic Structures” (Loos et al. 1996). These are reference models that are at a level of abstraction that they require the addition of enterprise specific detail to produce the enterprise specific model. These models require that the user “fill-in-the-blanks” (Bernus 1998) or require 2 The term “deriv...

Over the last years 3G standardization has been quite active, leading in new directions both in the network and the service provision architecture. The explosive growth of the Internet and the increasing demand for all sorts of IP-based services (voice & data, multimedia) has led the wireless industry to evolve its core network towards the IP technology. It is expected that in the near future, ...

BACKGROUND Little has been reported about service provision for children with autism in low-income countries. This study explored the current service provision for children with autism and their families in Ethiopia, the existing challenges and urgent needs, and stakeholders' views on the best approaches to further develop services. METHODS A situational analysis was conducted based on (i) qu...