to make the concept of centrality more precise. 3 Consider the network illustrated in In graph theory, a network such as the one illustrated in 6 Networks are not static. Relationships may change, and entry to and exit from the network may change each actor's centrality. We therefore construct our

in all societies. Thus, we should abandon the notion of 'Information Society', which I have myself used some times, as unspeci c and misleading. What is new in our age is a new set of information technologies. I contend they represent a greater change in the history of technology than

2010 to my wife, Joyce, and my family...- Résumé-

and the operator constructed from it. Remembering that the operator space -here taken to be real and of finite dimension -has Hilbert space structure when equipped with the Hilbert-Schmidt inner product, we can interpret the operators as vectors in this space. The POVM can then be seen as a generalization

of the crucial tasks in the CR cycle is therefore spectrum sensing and detection which has to be precise and efficient. Yet, CRs typically deal with wideband signals whose Nyquist rates are very high. In this paper, we propose to reconstruct the power spectrum of such signals from sub-Nyquist samples, rather

is located in the most remote and least desirable sections of the Nation's cities (Bratt, 1989; Kotlowitz, 1991). It is no surprise that in Chicago, where mixed-income housing programs are perhaps more advanced than in any other major U.S. city, the public housing projects being converted to mixed

I would like to thank my parents for always believing in me. I would also like to thank my supervisors Richard Lindner and Johannes Buchmann for their useful comments and suggestions on how to improve the queality of the thesis. Not on last place I would like to thank Vadim Lyubashevsky and Luis Carlos Coronado Garcia for their kindness and readiness to answer my questions. Warranty I hereby warrant that the content of this thesis is the direct result of my own work and that any use made in it of published or unpublished material is fully and correctly referenced. I also warrant that the presented work has

of 'mixed race' and a wedding of neighborhood residential location with mixed-race research. In light of our efforts to make visible the mixed-race household, we return to Salman Rushdie's provocative questions and contemplate where mixed-race households survive and flourish. How do mixed

Abstract not found

Implementational aspects of code-based cryptography