Catégorie :: Livres anglais (6020 livres)

A Field Guide to the Raptors of Europe, the Middle East, and North Africa
de William S. Clark(Ed. Oxford University Press) Isbn : 0198546629
64.97 €
In this thorough new identification guide, author Bill Clark presents the latest information on tried and tested field marks for the diurnal raptors, both perched and in flight, making this book essential for all ornithologists or any bird watcher who wants to accurately identify these extraordinary birds.

Pulsation, Rotation and Mass Loss in Early-Type Stars
de Luis A. Balona, Huib F. Henrichs(Ed. Kluwer Academic Publishers) Isbn : 0792330447
94.06 €
In this Symposium, researchers specializing in pulsation, rotation, magnetic fields and stellar winds are brought together for the first time in order to broaden our understanding of O and B stars. Thanks to advances in digital spectroscopy, new types of pulsating B stars have been discovered. The pulsations can be understood in terms of the recent revision of metal opacities, but the effects of rapid rotation and magnetic fields need further study. Observations in the UV and X-ray regions demonstrate that many B and Be stars show other activity, besides pulsation which is not yet understood. The reason for the enhanced mass loss in Be stars is a question which dominates the Symposium and which remains unanswered, although it is surely to be found in activity at or near the photosphere cou...

Birds Worth Watching
de George Miksch Sutton(Ed. University of Oklahoma Press) Isbn : 0806119756
23.57 €
In this posthumously published volume, a noted author, artist, and ornithologist gathers together decades of field notes regarding 60 species of well-known birds, including representatives from most of the major bird families. Neither a field guide nor a handbook for the beginner, Birds Worth Watching is a pleasantly written collection of bird portraits with accompanying color photographs. Reproductive and nesting activity, migratory behavior, and habitat requirements are among the topics. Both a patient observer and an inquiring scientist, Sutton continually raises questions about unexplained bird behaviors. Libraries in the western states will find this volume most useful since most of the sightings occurred in Oklahoma. Laurie Bartolini, formerly with Lincoln Lib., Springfield, Ill.Copy...

Birds Worth Watching
de George Miksch Sutton(Ed. University of Oklahoma Press) Isbn : 0806124016
12.41 €
In this posthumously published volume, a noted author, artist, and ornithologist gathers together decades of field notes regarding 60 species of well-known birds, including representatives from most of the major bird families. Neither a field guide nor a handbook for the beginner, Birds Worth Watching is a pleasantly written collection of bird portraits with accompanying color photographs. Reproductive and nesting activity, migratory behavior, and habitat requirements are among the topics. Both a patient observer and an inquiring scientist, Sutton continually raises questions about unexplained bird behaviors. Libraries in the western states will find this volume most useful since most of the sightings occurred in Oklahoma. Laurie Bartolini, formerly with Lincoln Lib., Springfield, Ill.Copy...

The Cardinal
de June Osborne(Ed. University of Texas Press) Isbn : 0292760434
9.46 €
In this inviting guide, June Osborne and Barbara Garland follow a year in the life of the Northern Cardinal with a fact-filled text and glowing color photographs. They describe how cardinals stake out territory and choose mates, find a nesting site and incubate their eggs, feed the young and prepare them for full-fledged independence. The Cardinal also explores the special relationship that humans have with their favorite redbirds. Osborne traces the symbolic use of cardinals as state birds (Illinois, Indiana, Kentucky, North Carolina, Ohio, Virginia, and West Virginia) and athletic mascots and shows how they appear on everything from postage stamps to Christmas cards, as well as in fine art, literature, and Native American folklore.

Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution (International Astronomical Union Symposia)
de Karel A. van der Hucht, Peredur M. Williams(Ed. Springer) Isbn : 0792331842
84.35 €
In this IAU Symposium on Wolf--Rayet stars, binary aspects received ample attention, notably because of the recognition that many observations of spectral and photometric variability at all accessible wavelengths are related to colliding winds or other forms of wind interaction. The basic structure of the conference and its proceedings is basic parameters and general properties of WR stars; state of the art model atmospheres for WR stars, anisotropic mass loss and disk formation of WR stars, properties of WR binaries; influence of stellar winds on mass transfer in hot massive binary evolution; dust formation near WR stars and other circumstellar phenomena; and hydrodynamics and high-energy physics of colliding winds in WR O binaries and of WR winds interacting with compact objects. Within ...

Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution - Proceedings of the 163rd Symposium of the International Astronomical Union Held in La Biodola. (International Astronomical Union Symposia)
de 38905(Ed. Kluwer Academic Publishers) Isbn : 0792331834
94.06 €
In this IAU Symposium on Wolf--Rayet stars, binary aspects received ample attention, notably because of the recognition that many observations of spectral and photometric variability at all accessible wavelengths are related to colliding winds or other forms of wind interaction. The basic structure of the conference and its proceedings is basic parameters and general properties of WR stars; state of the art model atmospheres for WR stars, anisotropic mass loss and disk formation of WR stars, properties of WR binaries; influence of stellar winds on mass transfer in hot massive binary evolution; dust formation near WR stars and other circumstellar phenomena; and hydrodynamics and high-energy physics of colliding winds in WR O binaries and of WR winds interacting with compact objects. Within ...

With My Soul Amongst Lions
de Gareth Patterson(Ed. St. Martin's Press) Isbn : 0312147686
23.7 €
In this gripping sequel to Last of the Free (LJ 4/15/95), Patterson continues his heroic struggle to provide a safe haven for the last descendants of the famous "Elsa" (a lioness rehabilitated to the wild by Joy Adamson, as recounted in her classic Born Free). Political and social conditions in Botswana and South Africa continued to work against Patterson, and he and his companion, Julie, survived tremendous hardships to promote their environmental efforts. Patterson describes the appalling cruelty inflicted upon the wildlife of the Tali Bushlands at the hands of poachers, politicians, and landowners. A tale of murder in the bushlands unfolds as he recalls how he often risked his life in the fight to protect the two remaining Adamson lionesses. Patterson is more than a man who lives with l...

Backyard Birdfeeding for Beginners
de Mathew Tekulsky(Ed. Gramercy Books) Isbn : 0517221500
7.59 €
In this fun, informative book, Matthew Tekulsky shows you how to turn your backyard into a bird-friendly garden environment. With charming black and white illustrations throughout, this gift volume explains what plants will attract birds, how to identify the birds that appear, what they like to eat, and how to provide them food and water year-round. Backyard birdfeeding is a hobby that millions of people feel both gives back to the world, and feeds the heart and spirit. Once the backyard space...

Title: Cuckoos Cowbirds and Other Cheats
de Nick Davis(Ed. T. A. D. Poyser) Isbn : 0856611352
116.76 €
In this fascinating new book, Nick Davies describes the natural histories of these brood parasites and examines many of the exciting questions they raise about the evolution of cheating and the arms race between parasites and their prey. Brood parasites fill their armory with adaptations including exquisite egg mimicry, rapid laying, ejection of host eggs, murder of host young, chick mimicry and manipulative begging behavior: ploys shown by recent research to have evolved in response to host...