The paper presents a visual notation for the Web Ontology Language (OWL) providing an integrated view on the classes and individuals of ontologies. The classes are displayed as circles, with the size of each circle representing its connectivity in the ontology. The individuals are represented as sections in the circles so that it is immediately clear from the visualization how many individuals ...

Instead of delegating control over private data to single large corporations, in friend-to-friend (F2F) systems users take control over their data into their own hands and they communicate only with users whom they know. In this paper we propose a push-pull-clone model for trust-based collaborative editing with contract deployed over F2F network. People specify contracts when they share data to...

Individual privacy settings allow members of Social Networking Sites (SNS) to share personal data with specifically selected contacts, such as close friends. This allows members to use SNS for sharing even more private data they would otherwise not want to share with all of their contacts. Although a considerable part of data sharing activities on SNS is limited to the direct contacts of its me...

I use friendships to define trust and collaboration in Second Life. A friendship is created when one resident asks another to be a friend, and the other accepts. During the observation period, the inquiry could be made by right-clicking on the potential friend's avatar or instant messaging the avatar. Thirty-one percent of the study population had one or more friends. These data have some immed...

the continuous addition of industrial, municipal, and agricultural effluents to the environment has led to a great increase of toxic pollutants. it is well known that these pollutants are hazardous to animals, plants, microorganisms, and other living organisms including humans. as a result, effective technologies should be developed to remove these contaminants. biological remediation, as an ec...

Background: Gender Based Violence refers to acts of sexual or physical violence inflicted on children in and around schools because their sex gendere identity. It results fatal non-fatal injuries, unintended pregnancies, induced abortions, STIs mental health problems. Schools are not isolated from traditions, culture, norms, customary laws governmental policies that exist the country community,...

One of the main characteristics of Semantic Web (SW) data is that it is notoriously incomplete: in the same domain a great deal might be known for some entities and almost nothing might be known for others. A popular example is the well known friend-of-a-friend data set where some members document exhaustive private and social information whereas, for privacy concerns and other reasons, almost ...

BACKGROUND In order to stimulate reflection and continuous professional development, a model of critical friends evaluating each other was introduced in medical education. OBJECTIVE To investigate whether the critical friend concept can serve as a pragmatic model for evaluation of medical teachers and as a fruitful tool for enhancing self-knowledge and professional development among medical e...