An incredible number of centrality indices has been proposed to date (Todeschini & Consonni, 2009). Four of them, however, can be considered prototypical because they operationalize distinct concepts of centrality and together cover the bulk of analyses and empirical uses: degree, closeness, betweenness, and eigenvector centrality. In teaching any mathematical science, it is instructive to cons...

Although little is known about how preferences develop in childhood, work in adults suggests that evaluative responses to stimuli can be acquired through classical conditioning. In two experiments children were exposed to novel cartoon characters, that were either consistently paired with a picture of a disliked food (Brussels sprouts) or a liked food (ice cream). Relative preferences for these...

—This paper presents a new rate based call gapping method. The main advantage is that it provides maximal through-put, priority handling and fairness for traffic classes without queues, unlike Token Bucket which provides only the first two or Weighted Fair Queuing that uses queues. The Token Bucket is used for call gapping because it has good throughput characteristics. For this reason we prese...