This in an outstanding collection of twelve African-American spirituals arranged for upper voices. Rosephanye and William C. Powell have collaborated with some of the most talented and respected spiritual arrangers in the United States to deliver specially commissioned, authentic settings. You'll find familiar melodies, such as 'Deep River' and 'Somebody's knockin' at yo' do'', alongside lesser-known spirituals, and a range of styles and moods extending from the aspirational to the celebratory. Many of the arrangements include a 'lead voice' part, allowing the opportunity for solo singing, and idiomatic piano parts support the voices for the accompanied spirituals; piano reductions are included for the unaccompanied arrangements. This inspirational journey through the African-American spiritual tradition is sure to captivate and delight all upper-voice choirs.

Perchlorate contamination of drinking water is a problem that has recently gained national attention. The purpose of this research was to develop a tool to predict the costand performance of tailored granular activated carbon (T-GAC), an innovative technology to treat perchlorate-contaminated water. The ability to predict cost and performance is essential to promote transfer and commercialization of innovative technologies.This study investigated how data obtained from small-scale laboratory tests could be applied to predict cost and performance of a full-scale T-GAC system to treat perchlorate-contaminated water. A technology model was developed using GAC design principles and using a multi-component Freundlich isotherm to describe sorption of perchlorate on T-GAC, in the presence of competing anions.