The Mexican Plateau, in its magnificent dimensions and material wealth, stood among the first and perhaps most alluring discoveries of European explorers. Bur- ied deeper in the verbal histories of a now vanquished people, the American Indians, must be the primordial human awareness of the inverted complex triangle that dominates the Mexican topography, climate and biota. It always has been viewed by man as a source of wealth and a center of authority. The plateau is the pillar upon which all Mexican conquerors have erected their capitols, tilled their crops and mined for their treasure, and from which they dispersed the forces of their authority. Ironically, the same size and diversity that give the plateau its value, also make it an immense barrier. Its broad desert and three to five thousand meter high crests constitute severe obstacles in the path of North American man. What has just been said of mankind in general, can be applied to the biologist in particular. He too has termed the goliath southern plateau as the crucible of the arid biotas of the continent (i. e. , 'Madro-Tertiary'). The biologist found the plateau to be a region of tremendous richness and diversity. But he also has been inhibited both physically and intellectually by its high mountain and vast desert barriers.
Surface crystallography is a discipline which has come of age. There exist in the literature several hundred complete determinations of atomic configurations at surfaces: yet the number is not so great that cataloguing these structures is too daunting a task. We felt that now was the right moment to begin a compilation that could be updated at frequent intervals to give a comprehensive picture of the known surface world. The following pages are the product of our labours. Our target community is the large number of surface chemists, materials scientists, physicists and others whose work involves surfaces. As the compilation expands with time our hope is that it will become one of the standard reference works for structures: in the manner that Wyckoff and other X-ray tables are for bulk crystals. We have devoted considerable thought to the format. The system we have chosen will no doubt have its critics, and in subsequent editions may well be improved, but it has been arrived at after extensive consultation. A problem that we faced in putting structures into standard format was the diversity of conventions used in the literature. It is to be hoped that our system will have sufficient virtue to serve as a standard format for future reporting of structures. That would make it much easier for surface crystallographers to use the work of others.
A Biographical Encyclopedia of Contemporary Genocide: Portraits of Evil and Good is a unique study of humanity's most reprehensible actions. It documents genocides that have occurred after World War II--a period that was supposed to be the fulfillment of the promise "never again"--by providing biographies rather than extensive historical narratives. The entries describe the personal backgrounds; careers; and relationship to genocidal events, humanitarian actions, or international initiatives relevant to each person in the book. Beyond examining the genocidaires who played key roles in mass murder, individuals who contributed to efforts to stop genocide are also profiled. By adopting a biographical approach to post- World War II genocide, the author sheds light on why people behave the way they do toward their fellow human beings and provides vital insights into the extremes of human positivity and negativity that have characterized this period of history. Serving as a vital tool for scholars and students of genocide as well as compelling reading for general audiences, the book highlights individual human behaviors, motivations, backgrounds, and intentions that can form a platform from which to raise and discuss issues of morality and ethics in the modern world.
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