WS-BPEL is widely used nowadays for specifying and executing composite business processes within the Service Oriented Architecture (SOA). During the execution however, of such business processes, a number of faults stemming from the nature of SOA (e.g. network or server failures) may occur. The WS-BPEL scenario designer must therefore use the provisions offered by WS-BPEL to catch these excepti...

Web service specifications (WS*) have been designed with the aim of being composable to provide a rich set of tools for secure, reliable, and/or transacted web services. Due to the flexibility of SOAP-level security [1] mechanisms, web services may be vulnerable to a distinct class of attacks based on the malicious interception, manipulation, and transmission of SOAP messages, which are referre...

We study the problem of load balancing in 802.11-based wireless networks, operating in infrastructure mode. In a large wireless network with multiple collocated Access Points (AP), a load balancing policy is necessary for the distribution of the wireless stations (WS) to the AP’s, so as the network performance to be maximized. Already proposed algorithms, which are based only on the received si...

Background. Execution of fitness testing in physical education classes is influenced by students’ motivation. Therefore, addressing new testing approaches seems necessary to more accurately measure student performance. Objectives. This study presents changes in fitness performance after applying a physical fitness tests battery (without external stimuli - WS) and with external stimuli (verbal ...

Originator Control allows information providers to define the information re-dissemination condition. Combined with usage control policy, fine-grained ’downstream usage control’ can be achieved, which specifies what attributes the downstream consumers should have and how data is used. This paper discusses originator usage control, paying particular attention to enterprise-level dynamic business...

Wolfram syndrome (WS) is a rare autosomal recessive neurodegenerative disease with variable symptoms, including neuropsychiatric manifestations. A 26-year-old man was reported with classic symptoms of WS and repetitive psychiatric hospitalizations and at least 16 suicidal attempts. The genetic study demonstrated a novel homozygous stop-codon mutation on the WFS1 gene. This special type of mutat...

This paper proposes an approach to behaviour-based discovery of Web Services by which business rules that govern service behaviour are described as a policy. The policy is represented in the form of ontological information and is based on actions relating to the service and conditions for performing them. The standard WS-Policy is used to associate such a policy to the Web Service. With a frame...

Two experiments (4 X 4 Latin squares) were conducted, using four multiple-cannulated wethers (mean body weight, 65 kg), to determine effects of treating wheat straw (WS) with alkaline solutions (pH 11.5) of hydrogen peroxide (AHP; .26 g hydrogen peroxide/g WS) on site and extent of nutrient digestion in sheep. Diets contained either 33 to 37% (low WS) or 70 to 72% (high WS) AHP-treated (T) or n...