Nuestros Genes Mitos Y Certezas Sobre El Prodigioso Fen Meno Humano

Un panorama general, básico y didáctico sobre la singularidad genética y biológica de la especie humana. Tras la creación del universo con el big-bang hace 13.700 millones de años brotó la vida en un planeta idóneo para su expansión y diversificación. En el libro se detallan los mecanismos de la evolución y de la aparición del Homo sapiens a partir de unos ancestros prehomínidos en el centro de África, hasta su expansión por todo el mundo. Se describen los procesos de la hominización y humanización y las especiales características del ser humano. Se explica el significado del “fenómeno humano” y el por qué y el cómo del resurgir de una especie tan singular. La única que asciende al mundo de la racionalidad y que en consecuencia vive su vida de forma consciente, se comunica con sus congéneres, crea la cultura y domina su entorno con un sentido ético y de trascendencia. En el libro se describen los fundamentos genéticos de nuestros rasgos biológicos, los determinantes genéticos y ambientales que influyen en el comportamiento humano, las enfermedades hereditarias y los detalles de nuestro genoma en relación con el de los demás seres vivos. Se distingue entre lo innato y lo adquirido. Se derriban los mitos y se asientan las pruebas de lo que es genuinamente humano y lo que no lo es. También se aborda el futuro de la humanidad en la era de las tecnologías emergentes, con los desafíos éticos de la manipulación genética y las corrientes materialistas que tratan de conducir a nuestra singular especie a la utopía transhumanista y posthumanista.

In his first book since the bestselling Fermat's Enigma, Simon Singh offers the first sweeping history of encryption, tracing its evolution and revealing the dramatic effects codes have had on wars, nations, and individual lives. From Mary, Queen of Scots, trapped by her own code, to the Navajo Code Talkers who helped the Allies win World War II, to the incredible (and incredibly simple) logisitical breakthrough that made Internet commerce secure, The Code Book tells the story of the most powerful intellectual weapon ever known: secrecy. Throughout the text are clear technical and mathematical explanations, and portraits of the remarkable personalities who wrote and broke the world's most difficult codes. Accessible, compelling, and remarkably far-reaching, this book will forever alter your view of history and what drives it. It will also make you wonder how private that e-mail you just sent really is.

A Frequency Dictionary of Spanish has been fully revised and updated, including over 500 new entries, making it an invaluable resource for students of Spanish. Based on a new web-based corpus containing more than 2 billion words collected from 21 Spanish-speaking countries, the second edition of A Frequency Dictionary of Spanish provides the most expansive and up-to-date guidelines on Spanish vocabulary. Each entry is accompanied with an illustrative example and full English translation. The Dictionary provides a rich resource for language teaching and curriculum design, while a separate CD version provides the full text in a tab-delimited format ideally suited for use by corpus and computational linguistics. With entries arranged both by frequency and alphabetically, A Frequency Dictionary of Spanish enables students of all levels to get the most out of their study of vocabulary in an engaging and efficient way.

This definitive edition of Columbus's account of the voyage presents the most accurate printed version of his journal available to date. Unfortunately both Columbus's original manuscript, presented to Ferdinand and Isabella along with other evidence of his discoveries, and a single complete copy have been lost for centuries. The primary surviving record of the voyage-part quotation, part summary of the complete copy-is a transcription made by Bartolome de las Casas in the 1530s. This new edition of the Las Casas manuscript presents its entire contents-including notes, insertions, and canceled text-more accurately, completely, and graphically than any other Spanish text published so far. In addition, the new translation, which strives for readability and accuracy, appears on pages facing the Spanish, encouraging on-the- spot comparisons of the translation with the original. Study of the work is further facilitated by extensive notes, documenting differences between the editors' transcription and translation and those of other transcribers and translators and summarizing current research and debates on unanswered current research and debates on unanswered questions concerning the voyage. In addition to being the only edition in which Spanish and English are presented side by side, this edition includes the only concordance ever prepared for the Diario. Awaited by scholars, this new edition will help reduce the guesswork that has long plagued the study of Columbus's voyage. It may shed light on a number of issues related to Columbus's navigational methods and the identity of his landing places, issues whose resolution depend, at least in part, on an accurate transcription of the Diario. Containing day-by-day accounts of the voyage and the first sighting of land, of the first encounters with the native populations and the first appraisals of his islands explored, and of a suspenseful return voyage to Spain, the Diario provides a fascinating and useful account to historians, geographers, anthropologists, sailors, students, and anyone else interested in the discovery-or in a very good sea story. Oliver Dunn received the PH.D. degree from Cornell University. He is Professor Emeritus in Purdue University and a longtime student of Spanish and early history of Spanish America. James E. Kelley, Jr., received the M.A. degree from American University. A mathematician and computer and management consultant by vocation, for the past twenty years he has studied the history of European cartography and navigation in late-medieval times. Both are members of the Society for the History of Discoveries and have written extensively on the history of navigation and on Columbus's first voyage, Although they remain unconvinced of its conclusions, both were consultants to the National geographic Society's 1986 effort to establish Samana Cay as the site of Columbus's first landing.

This first English translation makes avail­able to English-speaking readers a power­ful modern Mexican novel, first published in 1961. Fernando Benítez, well-known Mexican author, journalist, and winner of Mexico's 1968 best-book award, exploits a true but little-known incident by build­ing it into a tightly structured, tense, and tragic novel of social protest. The incident on which the novel is based is a bloody rebellion against the village feudal master touched off by joking comment on the "poisoning" of the water as one of Don Ulises's men is pushed into the plaza fountain. Feed­ing on itself, the rumor spreads that the "boss" has poisoned the local spring, and rebellion follows, with its violent and unforeseen consequences. The result is a frightening look at one of Mexico's major social problems and glaring ironies--that over fifty years after a revolution fought by the peasant and for the peasant, most rural groups are still living below the national economic standard.

Dedicated to the life and work of Heinz Von Foerster, this is a double issue of the journal "Cybernetics and Human Knowing".