Teach Yourself to Sing
Everything You Need to Know to Start Singing Now
Paperback ISBN: 0882846655
Learn at your own pace with this proven course for beginners. Learn proper breathing, posture, and warm-up techniques that will keep you singing for a lifetime with confidence and in a variety of styles. Includes practice exercises, demonstrations by professional singers and motivating accompaniments to sing along with.
Pilgrims and Pilgrimage in the Medieval West
Paperback ISBN: 1860646492
Pilgrimage was an integral part of both medieval religion and medieval life, and from its origins in the fourth-century Mediterranean world it spread rapidly to Northern Europe as a pan-European devotional phenomenon. Concentrating on the medieval Latin West, this book covers the period spanning the growth in pilgrimage during the seventh century to the Protestant Reformation in the 16-century, when pilgrimage ceased to be a vital part of European Christian culture. It draws extensively upon original source materials accounts of pilgrimage, guidebooks, chronicles, wills, covert memos, and state documents, thereby seeking to uncover the motives of the pilgrims themselves as well as details of and attitudes towards their preparations, journeys, shrines, and eventual destinations (particularly Jerusalem, Compostela, and Rome).
The Unified Neutral Theory of Biodiversity and Biogeography
Paperback ISBN: 0691021287
Despite its supreme importance and the threat of its global crash, biodiversity remains poorly understood both empirically and theoretically. This ambitious book presents a new, general neutral theory to explain the origin, maintenance, and loss of biodiversity in a biogeographic context. Until now biogeography (the study of the geographic distribution of species) and biodiversity (the study of species richness and relative species abundance) have had largely disjunct intellectual histories. In this book, Stephen Hubbell develops a formal mathematical theory that unifies these two fields. When a speciation process is incorporated into Robert H. MacArthur and Edward O. Wilson's now classical theory of island biogeography, the generalized theory predicts the existence of a universal, dimensionless biodiversity number. In the theory, this fundamental biodiversity number, together with the migration or dispersal rate, completely determines the steady-state distribution of species richness and relative species abundance on local to large geographic spatial scales and short-term to evolutionary time scales. Although neutral, Hubbell's theory is nevertheless able to generate many nonobvious, testable, and remarkably accurate quantitative predictions about biodiversity and biogeography. In many ways Hubbell's theory is the ecological analog to the neutral theory of genetic drift in genetics. The unified neutral theory of biogeography and biodiversity should stimulate research in new theoretical and empirical directions by ecologists, evolutionary biologists, and biogeographers.