This paper defines and outlines and proposes a heuristic method to detect unavailability on a practical service created on the Internet. It uses a token that is passed between all the nodes. The algorithm is under trial in a set of servers spanning over multiple administrative domains.

However, its commercial success as a biofuel plant is still elusive. Major bottlenecks for the same are significant variations in seed yield and oil content, low seed viability and germination rate. For vegetative propagation to be successful, it would require availability of quality planting material throughout the year. However, this is limited by unavailability of quality planting material a...

The paper presents the results of a survey carried out in the Slavonian village of Vođinci in 2006. The survey focused on the young people’s opinion about the quality of life and disadvantages of living in a rural area, and on their intention to stay in or leave the village. The results indicate that the main drawbacks for the young living in the village are poor working conditions (including u...

Verbal overshadowing refers to a phenomenon whereby verbalization of a non-verbal stimulus (e.g., he had slant eyes) impairs subsequent non-verbal recognition accuracy. In order to understand the mechanism by which this phenomenon occurs, we constructed a computational model that was trained to generate an individual-face-specific representation upon input of a noise-filtered retinotopic face (...

Mobile networks composed of devices interconnected by wireless communication media frequently suffer from partitions. If mobile devices depend on software services running on remote devices, such partitions may render the software services unavailable. We propose the use of code mobility to mitigate the unavailability of software services in mobile networks. We discuss the issues of existing mo...

With the tremendous growth in the dependence of services on the Internet, service disruption has become less and less tolerable. The greatest threat to service availability is the rapid growth in the complexity and frequency of large-scale distributed attacks. These attacks cause economic losses due to unavailability of services and potentially serious security concerns by the incapacitation of...

Existing research on synchronous remote working in CSCW has highlighted the troubles that can arise because actions at one site are (partially) unavailable to remote colleagues. Such ‘local action’ is routinely characterised as a nuisance, a distraction, subordinate and the like. This paper explores interconnections between ‘local action’ and ‘distributed work’ in the case of a research team vi...

The BER and the availability belong among the basic qualitative parameters of free space optical (FSO) links. The BER parameter is usually mentioned by FSO manufacturers, but it is not defined what conditions a certain value of BER stands for. This article deals with problems of measuring the BER of free space optical link and with questions how to determine the probability of unavailability of...

Higher education in Tanzania like in many other Sub-Saharan countries suffers from unavailability of quality teaching and learning resources due to lack of tradition, competence, and experience to develop such resources. Nevertheless, there are thousands of open educational resources (OER) freely available in the public domain that can potentially improve the quality of existing resources or he...

Globally distributed software development is facing challenges brought by geographic distance, temporal separation, and cultural diversity. Yet research regarding the impact of temporal separation and cultural differences is limited. This paper draws on an interpretive case study to examine the influence of culture on temporal separation and coordination of globally distributed software develop...