Somos polvo de estrellas【電子書籍】[ Jos? Maza ]
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＜p＞"Hace muchos a?os ー1976ー estuve en Tucson, Arizona, y en el planetario de la ciudad hab?a un ciclo de charlas de divulgaci?n. Una de ellas me llam? poderosamente la atenci?n. La ofrec?a el astr?nomo de la Universidad de Arizona, Nick Woolf, y se titulaba ≪The Universe: I can Feel it in my Bones≫. El t?tulo era tan provocativo que me inspir? para una charla p?blica que, ya de vuelta en Chile, he dictado durante a?os: ≪Somos polvo de estrellas≫. A miles de j?venes y no tan j?venes les he contado lo que yo considero una de las m?s grandes historias de la astronom?a. Carl Sagan dec?a que somos ≪material estelar≫; Mar?a Teresa Ruiz, en Chile, hace unos a?os nos dijo en su libro que somos ≪hijos de las estrellas≫. La historia cambia de nombre pero el contenido es el mismo: todos los ?tomos que componen su cuerpo, amigo lector, y el m?o, salvo el hidr?geno, han sido fabricados al interior de una estrella", Jos? Mar?a Maza Sancho.＜br /＞ ＜em＞En Somos polvo de estrellas＜/em＞, Jos? Maza nos gu?a a trav?s de un incre?ble viaje que conecta las transformaciones del universo con las revoluciones cient?ficas en la Tierra, relacionando la formaci?n de las estrellas con nuestro propio organismo. Con datos e informaci?n privilegiada, el Premio Nacional de Ciencias Exactas (1999) nos narra de manera c?lida y cercana c?mo la historia del cosmos es tambi?n nuestra, y que no podemos perder esa curiosidad con la que miramos el mundo cuando fuimos ni?os, pues es esa la llave del conocimiento.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。・・・楽天Kobo電子書籍ストア
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＜p＞In the latter half of the twentieth century, legions of industrial pioneers came to northwestern British Columbia with grand plans for mines, dams, and energy-development schemes. Yet many of their projects failed to materialize or were abandoned midstream. ＜em＞Unbuilt Environments＜/em＞ reveals that these lapsed resource projects had lasting effects on the natural and human environment. Drawing on a range of case studies to analyze the social and environmental impacts of unfinished projects, Jonathan Peyton considers development failure a productive concept for northwestern Canada. He looks at a closed asbestos mine, an abandoned rail grade, an imagined series of hydroelectric installations, a failed LNG export facility, and a transmission line ? and finds that these unrealized developments continue to shape contemporary resource conflicts.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。
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＜p＞Bioengineering is the application of engineering principles to address challenges in the fields of biology and medicine encompassing the principles of engineering design to the full spectrum of living systems. In surgery, recent advances in minimal invasive surgery and robotics are the culmination of the work that both engineers and surgeons have achieved in the medical field through an exciting and challenging interface. This interface rests on the medical curiosity and engineering solutions that lead eventually to collaboration and development of new ideas and technologies. Most recently, innovation by surgeons has become a fundamental contribution to medical research in the surgical field, and it is through effective communication between surgeons and biomedical engineers and promoting collaborative initiatives that translational research is possible. Bioengineering for Surgery explores this interface between surgeons and engineers and how it leads to innovation processes, providing clinical results, fundraising and prestige for the academic institution. This book is designed to teach students how engineers can fit in with their intended environment and what type of materials and design considerations must be taken into account in regards to medical ideas. - Introduces engineers to basic medical knowledge - Provides surgeons and medical professionals with basic engineering principles that are necessary to meet the surgeons' needs＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。
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＜p＞Differential equations require a good understanding of derivatives so you can understand how they work. This study guide discusses in detail the differential equations, how they are used and even how they look like. A solution process is also included so you get the help you need to practice your math skills in this area. Be sure to grab a copy.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。
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＜p＞The second annual Frank M. Norfleet Forum for the Advancement of Health was convened November 30, December 1 and 2, 1981 at The University of Tennessee Center for the Health Sciences, Memphis, Tennessee. The Norfleet Forum is a continuing series of discussions on issues related to national health policy and organization of health care at all levels. Application of the competitive model for containing costs and assuring high quality of medical care (1980 Forum) is jeopardized in part by rapid introduction of expensive medi cal technology. Decision-makers in business and industry, government and health care provider groups recognize the benefits of high technology and are reluctant to impose controls that might reduce the effective level of scientific creativity. And yet, some technologies are rushed into routine use before their efficacy and safety are assured, and without measuring the benefits to be achieved against the harsh reality of cost. In this volume, 11 of the worldls experts on technology issues summarize current ideas for understanding and coping with the technological imperative of the 1980s. James R. Gay, M.D.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。
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＜p＞The first part of this book is devoted to methods seeking relevant dimensions of data. The variables thus obtained provide a synthetic description which often results in a graphical representation of the data. After a general presentation of the discriminating analysis, the second part is devoted to clustering methods which constitute another method, often complementary to the methods described in the first part, to synthesize and to analyze the data. The book concludes by examining the links existing between data mining and data analysis.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。
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＜p＞This book provides a single-source reference to the state-of-the-art of high-level programming models and compilation tool-chains for embedded system platforms. The authors address challenges faced by programmers developing software to implement parallel applications in embedded systems, where very often they are forced to rewrite sequential programs into parallel software, taking into account all the low level features and peculiarities of the underlying platforms. Readers will benefit from these authors’ approach, which takes into account both the application requirements and the platform specificities of various embedded systems from different industries. Parallel programming tool-chains are described that take as input parameters both the application and the platform model, then determine relevant transformations and mapping decisions on the concrete platform, minimizing user intervention and hiding the difficulties related to the correct and efficient use of memory hierarchy and low level code generation.＜/p＞画面が切り替わりますので、しばらくお待ち下さい。 ※ご購入は、楽天kobo商品ページからお願いします。※切り替わらない場合は、こちら をクリックして下さい。 ※このページからは注文できません。