An arc-colored digraph D is properly (properly-walk) connected if, for any ordered pair of vertices (u,v), the contains a directed path (a walk) from u to v such that arcs adjacent on (on have distinct colors. The proper connection number pc→(D) (the proper-walk wc→(D)) minimum colours make (properly-walk connected). We prove pc→(Cn(S))≤2 every circulant Cn(S) with S⊆{1,…,n−1},|S|≥2 and 1∈S. Fu...

This paper describes a mechanism, called \persis-tent connection," to preserve stream connections after the communicating peer exits and till it restarts. Such connections have many applications: to survive failures that crash one party, network partitions that cut oo the two parties, and temporary disconnection in a mobile computing environment. They can also facilitate suspension of process e...

Minority boys are at risk of academic disengagement. Prior research documents that an aspect of racial-ethnic identity, in-group connection, can buffer against this risk, but that in-group connection is undermined in high-risk neighborhoods. We examined another way that boys may feel connected to the in-group, by looking like in-group members. We hypothesize that physical markers of in-group me...

This report discusses measures for link strength in Discrete Bayesian Networks, i.e. measures for the strength of connection along a specific edge. It is a revised version of Report GT-IIC-07-01 (Jan 2007) with improved literature review and explanations. The target application is the visualization of the strengths of the edge connections in a Bayesian Network learned from data to learn more ab...

Introduction Wireless access to the Internet is now commonly used in schools. Many schools give each student their own laptop and utilize the laptops and wireless fidelity (Wi-Fi) connection for educational purposes. Most children also bring their own mobile phones to school. Since children are obliged by law to attend school, a safe environment is important. Lately, it has been discussed if ra...

Congressman Udall, members of the Committee on Science, members of the audience, ladies and gentlemen, I am glad to be here with you today. I am here to discuss the state of empirical research on the impact of educational facilities on student behavior, attitudes and performance. What we know comes from research from a broad array of disciplines ranging from social and environmental psychology,...