Shallow water acoustics (SWA), the study of how low and medium frequency sound propagates and scatters on the continental shelves of the worlds oceans, has both technical interest and a large number of practical applications. Technically, shallow water poses an interesting medium for the study of acoustic scattering, inverse theory, and propagation physics in a complicated oceanic waveguide. Practically, shallow water acoustics has interest for geophysical exploration, marine mammal studies, and naval applications. Additionally, one notes the very interdisciplinary nature of shallow water...

This delightful story shows that two young girls from different backgrounds have a lot in common when they visit a zoo for the first time. The author's endearing story-telling abilities, as well as the artist's amazing full-color illustrations on every page, are sure to please readers of all ages around the world. Rudell Kopp published her Just Like Brothers series in 2009, which introduced the readers to the families of two six-year-old boys. This Just Like Sisters book is a continuation of the boys' tale as seen through the eyes of the boys' younger sisters. Children accepting difference,...