201 frases esenciales en ingles frases basicas y utiles que te ayudara hablar ingles rapido spanish edition

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Where There Is No Doctor

Author : David Werner
ISBN : 0942364155
Genre : Community health aides
File Size : 56. 60 MB
Format : PDF, ePub
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A Neotropical Companion

Author : John Kricher
ISBN : 9781400866915
Genre : Nature
File Size : 35. 78 MB
Format : PDF, Kindle
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A Neotropical Companion introduces armchair travelers, field naturalists, and conservationists to the tropics of Central and South America. In recent years the neotropics have been more and more frequently visited by those interested in rain forests and the exotic birds, mammals, insects, and plants of these ecosystems. At the same time scientific knowledge of the neotropics has bourgeoned. A primer for the student and for the scientific amateur, this well-illustrated volume presents a general and up-to-date view of some of the world's most complex natural environments. In addition, it provides the neotropical specialist with a broad look at the entire field of neotropical biology. After giving an overview of the different kinds of ecosystems in the tropics, the author describes the structure, function, and evolution of tropical rain forests. Tropical trees are then discussed, as are the vast array of vines, orchids, bromeliads, and other plants that live among the branches of the forest giants. A chapter on the "tropical pharmacy" treats the many drugs present in tropical vegetation and the evolutionary influence of these drugs. The book surveys the great diversity of birds, mammals, reptiles, amphibians, and arthropods of the neotropics and provides separate chapters on tropical savannas and on coastal ecosystems. An epilogue deals with the crucially important issues of the conservation of neotropical environments.

The Structure Of Scientific Revolutions

Author : Thomas S. Kuhn
ISBN : 9780226458144
Genre : Science
File Size : 87. 36 MB
Format : PDF, ePub
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A good book may have the power to change the way we see the world, but a great book actually becomes part of our daily consciousness, pervading our thinking to the point that we take it for granted, and we forget how provocative and challenging its ideas once were—and still are. The Structure of Scientific Revolutions is that kind of book. When it was first published in 1962, it was a landmark event in the history and philosophy of science. Fifty years later, it still has many lessons to teach. With The Structure of Scientific Revolutions, Kuhn challenged long-standing linear notions of scientific progress, arguing that transformative ideas don’t arise from the day-to-day, gradual process of experimentation and data accumulation but that the revolutions in science, those breakthrough moments that disrupt accepted thinking and offer unanticipated ideas, occur outside of “normal science,” as he called it. Though Kuhn was writing when physics ruled the sciences, his ideas on how scientific revolutions bring order to the anomalies that amass over time in research experiments are still instructive in our biotech age. This new edition of Kuhn’s essential work in the history of science includes an insightful introduction by Ian Hacking, which clarifies terms popularized by Kuhn, including paradigm and incommensurability, and applies Kuhn’s ideas to the science of today. Usefully keyed to the separate sections of the book, Hacking’s introduction provides important background information as well as a contemporary context. Newly designed, with an expanded index, this edition will be eagerly welcomed by the next generation of readers seeking to understand the history of our perspectives on science.

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