Davidson – författare

Few students have had the opportunity to consider the contrasting social identties pursued by African Americans following abolotion of slavery, nor to understand how whites' skewed construction of those aspirations were a reaction against them. The story of Ida Wells provides a useful narrative frame for understanding the treacherous crosscurrents of race that shaped social identites.Wells was born into slavery in 1862, of mixed parentage, and raised in Mississippi. Her thrist for education and high social aspiration, combined with her strong personality, led her to speak out in ways often at odds with Victorian feminine ideals. She was expelled from Rusk Cllege in a dispute with its white president; she taught school in Memphis, where she brought a suit against the Chesapeake reailroad after being thrown off for refusing to leave the first-class cas; and she spoke out against the increasing segregation in the Memphis school system. After race riots and lynchings in Memphis in 1892, she embarked full-blown on the career for which she is now remembered, as an outspoken writer and lecturer against lynching.

Fast-growing eucalypts help to meet the demand for wood throughout the warmer parts of the world. They are grown in numberous small woods and windbreaks to produce poles and firewood, and in extensive plantations mainly for the pulp and paper industries. This book shows how to breed improved eucalypts that will provide more and better wood on appropriate sites selected through sound land use planning. The emphasis is on making greater use of the immense richness of the genetic resources of the eucalypts, especially in the first generation or two of domestication `wild' eucalypts for wood production. The book covers those aspects of variation, selection, and reproduction that are unique to eucalypts. Large gains in production and quality can be obtained relatively cheaply by choosing the best geographic seed sources (provenances). Once suitable base populations have been assembled, continued long-term genetic gain can be assured through well-planned recurrent selection and mating.This book is essential reading for practising foresters managing eucalypt plantations, and will also be of great interest to planners and administrators in aid agencies.

Considerable recent research has focused on the topic of chemical speciation in the environment. It is increasingly realised that the distribution, mobility and biological availability of chemical elements depend not simply on their concentrations but, critically, on the forms in which they occur in natural systems. Continuing developments in analytical chemistry have made speciation practicable even where analytes are present at trace levels (as is often the case in natural samples). In the second edition of this book, the expertise of scientists involved in chemical speciation in various fields have been brought together to provide an overview of the current status of speciation science and indicate how the field may develop in the future.

Process Fan and Compressor Selection is ideal reference material for engineers, managers and designers in mechanical and chemical engineering, equipment manufacturers, those training to be engineers, and anyone working in the process industries.COMPLETE CONTENTS: IntroductionPreliminary choice of fan or compressor typeFansCentrifugal compressorsAxial compressorsReciprocating compressorsTwin screw compressors – generalOil-free twin screw compressorsOil-injected twin screw compressorsPositive displacement blowersRotary, sliding vane compressorsDrives and transmissionsLubricationSeals for rotary machinesInspection and testingContainment safety.The units used throughout this guide are SI units.

This book is the third in a series with the International Association for the Scientific Study of Intellectual Disabilities (Series Editor: Matthew P. Janicki). These publications are designed to address the issues of health, adult development and aging among persons with intellectual disabilities. For many years it has been recognized that some adults with intellectual disabilities are at elevated risk for mental and behavioral health problems. Often the aging process can complicate the identification, diagnosis, treatment and prevention of this type of dual diagnosis and present complex challenges to clinicians and carers. This book is designed as a practical resource for those involved with the support, care and treatment of persons with intellectual disabilities, and should prove particularly useful as this community achieves increased longevity. The book is divided into three parts: Prevalence and Characteristics; Diagnosis and Treatment; and Service System Issues.