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Tecnologias Limpias en las Industrias Extractivas Minero-Metalurgicas y Petrolera
Clean Technologies for the Mining Industry
Based on a sample survey of 102 households. Focuses on Puerto Rican fishers who also engage in paid employment in the USA.
"A new and unique contribution to the study of the history of the early contact between Europe and the Americas."--Gary Urton, Colgate University "A new and unique contribution to the study of the history of the early contact between Europe and the Americas."--Gary Urton, Colgate University
Reprint of the original, first published in 1859.
The comparative study of humans as biological organisms, their evolution, and their physiological and anatomical functions and ecology of primates surveys the entire field and summarizes and organizes the basic knowledge, fundamental principles and development.
Agrarian Landscapes in Transition researches human interaction with the earth. With hundreds of acres of agricultural land going out of production every day, the introduction, spread, and abandonment of agriculture represents the most pervasive alteration of the Earth's environment for several thousand years. What happens when humans impose their spatial and temporal signatures on ecological regimes, and how does this manipulation affect the earth and nature's desire for equilibrium? Studies were conducted at six Long Term Ecological Research sites within the US, including New England, the Appalachian Mountains, Colorado, Michigan, Kansas, and Arizona. While each site has its own unique agri...
This book investigates the emergence of social complexity and state formation in a New World region. Around 500 BC, the Valley of Oaxaca, in present-day Mexico, was the site of one of the earliest Native American states, when a new regional capital was established at Monte Alban. Today one of Mexico's most famous and spectacular archaeological sites, Monte Alban signalled an important series of changes in regional political structure in the direction of greater political complexity and integration within a larger domain. The four authors of this introductory text have over the years produced much of the most important primary information we have about developing complex societies in this region. Drawing on the abundance of excavated remains and a survey of regional archaeological settlement patterns, they provide a succinct account of the causes and consequences of political change in the region.
Without realizing, most archaeologists shift within a scale of interpretation of material culture. Material data is interpreted from the scale of an individual in a specific place and time, then shifted to the complex dynamics of cultural groups spread over time and place. This book discusses the cultural, social and spatial aspects of scale and its impact on archaeology, and shows how an improved awareness of scale offers new and exciting interpretations.
An insider's provocative account of one of the most contentious debates in science today When Niles Eldredge and Stephen Jay Gould, two of the world's leading evolutionary theorists, proposed a bold new theory of evolution—the theory of "punctuated equilibria"—they stood the standard interpretation of Darwin on its head. They also ignited a furious debate about the true nature of evolution. On the one side are the geneticists. They contend that evolution proceeds slowly but surely, driven by competition among organisms to transmit their genes from generation to generation. On the other are the paleontologists, like Eldredge and Gould, who show in the fossil record that in fact evolution ...