This paper is addressed to the inner city and some suburban congregations seeking to express their faith through practical initiatives to revitalize their distressed communities. The paper seeks to inspire and instruct the reader with motivational stories containing illustrations of the valuable role that African-American congregations have played in stimulating economic development in their communities. The paper also shows the importance of African-Americans having some control over the flow of economic funds throughout the community. African-American churches in the inner city should undertake significant ventures in community economic development to minister to the temporal as well as the spiritual needs of their communities. This paper will demonstrate how the African-American church, with assistance from federal, state, local programs, and private concerns, can be effective in the urban revitalization.

I: Quantum information obeys laws that subtly extend those governing classical information, making possible novel effect such as cryptography and quantum computation. Quantum computations are extremely sensitive to disruption by interaction of the computer with its environment, but this problem can be overcome by recently developed quantum versions of classical error-correcting codes and fault-tolerant circuits. Based on these ideas, the purpose of this paper is to provide an approach to quantum information by analyzing and demonstrating Bell's inequality and by discussing the problems related to decoherence and error-correcting. II: The growing need for a better understanding of complex processes has stimulated the development of new and more advanced data analysis techniques. The purpose of this research was to investigate some of the already existing techniques (Hurst's rescaled range and relative dispersion analysis), to develop a software able to process time series with these techniques, and to get familiar with the theory of diffusion processes.