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«In Science and Human Behavior, Skinner moved from lever pressing or key pecking to behaviors such as looking, attending, thinking, imagining, and other types of behavior that cannot easily be defined in terms of muscle movements or glandular secretions. In doing so, he expanded the boundaries of what we consider behavior and what is within the reach of science.» – A. Charles Catania, University of Maryland

«A milestone in psychology as a behavioral science. The first systematic study of behavior on its proper scale: the actions and reactions of organisms as a function of their environments, not the brain or mind. A refreshing classic of psychology for the present times». – Marino Pérez Álvarez, University of Oviedo

«A brilliant book that integrates some of the main theories of radical behaviorism with cognitive-behavioral theories and practices in psychotherapy. Among many others, this book gives the most plausible explanations for why people behave the way they do and, especially, why their behavior is sometimes dysfunctional».  – Albert Ellis

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This journal provides immediate free access to its content on the principle of making research freely available to the public, which fosters greater global knowledge exchange.

The Division of Agriculture and Natural Resources (ANR) is a statewide network of researchers and educators at the University of California who are dedicated to creating, developing, and applying knowledge and advances in agriculture, human resources, and natural resources.

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Since September 5, 2001, the Virtual Legal Library of the Instituto de Investigaciones Jurídicas of the UNAM has made available to legal scholars books, journals and other materials in full text and free access.

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CAB Abstracts with Full Text, produced by CABI Publishing, covers important research and development literature in applied life sciences, including agriculture, forestry, human nutrition, veterinary medicine, and the environment. Reference coverage dates back to 1973. Full-text access to over 1300 titles.

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Legislation and jurisprudence database with the added bonus of including analysis of real cases, resolutions, nine calculators, forms and models, doctrine and the big data jurist database, an ambitious scientific-academic database of legal practice developed by leading experts in each of the areas of law, and endorsed by the most prestigious jurists in our country. This work is updated daily and developed in several editorial phases, covering all branches of law, specialized rights and regulated sectorial rights.