Security is a major concern when service environments are implemented. This has led to the proposal of a variety of specifications and proposals based on soft computing methods to provide the necessary security for these environments. However, most proposed approaches focus only on ensuring confidentiality and integrity, without putting forward mechanisms that ensure the availability of service...

Providing service differentiation in wireless sensor networks while proposing simple and highly scalable solution is a challenging problem. We retain the use of CSMA/CA as access protocol because of its simplicity, versatility and good scalability properties. We developed CoSenS on the top of it to address its weaknesses while facilitating the implementation of scheduling policies. In this arti...

The Open Hypermedia model is based upon the separation of hypertext links from documents, treating them as separate, first class entities. Distributed link services take this approach a stage further, with separate link services providing and managing the links. In this paper, we describe the development of a system infrastructure for link services using the Web Services architecture. More prec...

a quasi experimental study was made to determine the effect of in-service education on knowledge, attitude and behavior for controlling hospital infections among nurses aids working in teaching hospitals supervised by the ministry of medical sciences and health care services (tehran,1994).   the sample consisted of 75 randomly selected nurses aids who answered the pre and post in service educat...

Service composition is a major challenge in an open environment populated by large numbers of heterogeneous services. In such a setting, the efficient interaction of directory-based service discovery with service composition engines is crucial. In this article we present a Java-based directory that offers special functionality enabling effective service composition. In order to optimize the int...

Public service announcements (PSAs) are non-commercial advertisements aiming to improve knowledge, attitudes and/or behavior. No evaluations of epilepsy PSAs exist. This study sought to evaluate a televised PSA showing first aid for a seizure. A multilevel regression analysis was used to determine the effect of the PSA on epilepsy knowledge and attitudes taking into account school-level cluster...

objective: this study was conducted to identify the characteristics of patients with psychosis who had escaped from hospital or were discharged prematurely and against medical advice. method: we carried out this retrospective study on 72 patients with psychosis who were discharged prematurely over a 38-month period and compared them to 76 patients with psychosis who were discharged according to...

Introduction. Shiraz university of medical sciences presents surgical facilities in two services, the morning and the afternoon services. In this study,the number and type of ENT operations performed in these two services during a 12 months period in Khalili Hospital were compared to find out the differences between the operations performed in these services and the role they have in the edu...

Quality of Service (QoS) refers to a set of rules or techniques that help the network administrators use the available network resources optimally to manage the effects of congestion and to treat the applications according to their needs. The differentiated services architecture (DiffServ) allows providing quality of service to users. The major DiffServ premise is that individual flows with sim...