Comets are small bodies, but of great cosmic relevance. Given its pristine nature, they may preserve valuable and unique information on thechemical and physical processes that took place in theearly solar system, and that may be occurring in the formation of other planetary systems. They might have even played a very important role in the origin of life on Earth. Beyond that, since ancient times comets have inspired awe, superstition, and also curiosity anddebate. Their sudden apparitions challenged the long-held view of the immutability of the heavens, which triggered a long debate on whether comets had a heavenly or terrestrial nature. Therefore, comets have a prominent role in the history of scienti?cthought, that goes back to the most ancient civilizations. The last apparition of comet Halley in 1986 was a landmark since it arouse a great expectation in the scienti?c community and in the public at large. For the ?rst time, a ?otilla of spacecrafts visited a comet. Agreat number of popular and technical books were written on Halley, and comets in general, around the mid-eighties. The interest in comets never subsided after Halley’s passage which is re?ected in the large volume of printed material on these bodies. I have taken the challenge to write a new book on comets that summarizes most of the recent advances on thesubject, including my own workdeveloped during the last 25 years.
The United States is a nation whose identity is defined by the idea of democracy. Yet democracy in the U.S. is often taken for granted, narrowly understood, and rarely critically examined. In Democracy as a Way of Life in America, Schneirov and Fernandez show that, much more than a static legacy from the past, democracy is a living process that informs all aspects of American life. The authors trace the story of American democracy from the revolution to the present, showing how democracy has changed over time, and the challenges it has faced. They examine themes including individualism, foreign policy, the economy, and the environment, and reveal how democracy has been deeply involved in these throughout the country’s history. Democracy as a Way of Life in America demonstrates that democracy is not simply a set of institutions or practices such as the right to vote or competing political parties, but a complex, multi-dimensional phenomenon, whose animating spirit can be found in every part of American culture and society. This vital and engaging narrative should be read by students of history, political science, and anyone who wants to understand the nature of American democracy.
This book covers the history, botany and agricultural aspects of the crop, summarising the techniques that have been developed to improve harvesting, processing and packaging of olives. Full details are provided relating to the physico-chemical and microbiological aspects of processing of each of the olive types. It will serve as a practical guide to agricultural scientists, food scientists and technologists who are involved in the preparation of table olives.
The shipping industry has been growing in leaps and bounds over the past few decades. The answer to reduced manning, together with demanding operating schedules, has more often than not been automation. Hence the need of the hour for a seafarer is adequate knowledge of UMS environments and their supporting systems onboard ships. With almost 30 years of first-hand experience by each of us in this mammoth industry, we have seen the evolution from control elements and systems of the post 2nd world- war era to the most sophisticated components and networks available today. It has indeed been a wonderful journey through time! These experiences have been our guiding light; they have prompted us to share our acquired knowledge with our counterparts and students of the maritime industry.
In November 1999, fifty-thousand anti-globalization activists converged on Seattle to shut down the World Trade Organization’s Ministerial Meeting. Using innovative and network-based strategies, the protesters left police flummoxed, desperately searching for ways to control the emerging anti-corporate globalization movement. Faced with these network-based tactics, law enforcement agencies transformed their policing and social control mechanisms to manage this new threat. Policing Dissent provides a firsthand account of the changing nature of control efforts employed by law enforcement agencies when confronted with mass activism. The book also offers readers the richness of experiential detail and engaging stories often lacking in studies of police practices and social movements. This book does not merely seek to explain the causal relationship between repression and mobilization. Rather, it shows how social control strategies act on the mind and body of protesters.
Offers a definitive and timely account of the interdependent histories of the U.S. and Mexico, including the making of the Chicano population in America, while also providing a history of 20th-century Mexico and its cultural interactions with the U.S.
Recently, a wall was built in eastern Germany. Made of steel and cement blocks, topped with razor barbed wire, and reinforced with video monitors and movement sensors, this wall was not put up to protect a prison or a military base, but rather to guard a three-day meeting of the finance ministers of the Group of Eight (G8). The wall manifested a level of security that is increasingly commonplace at meetings regarding the global economy. The authors of Shutting Down the Streets have directly observed and participated in more than 20 mass actions against global in North America and Europe, beginning with the watershed 1999 WTO meetings in Seattle and including the 2007 G8 protests in Heiligendamm. Shutting Down the Streets is the first book to conceptualize the social control of dissent in the era of alterglobalization. Based on direct observation of more than 20 global summits, the book demonstrates that social control is not only global, but also preemptive, and that it relegates dissent to the realm of criminality. The charge is insurrection, but the accused have no weapons. The authors document in detail how social control forecloses the spaces through which social movements nurture the development of dissent and effect disruptive challenges.
Using results from geological mapping, detailed stratigraphy, mineral chemistry, and geochemistry, the authors have developed a model to explain characteristics of Dominica not seen on many island arcs worldwide. The model suggests that during the Pleistocene partial melting of the island-arc crust generated a single magma body of batholithic proportions beneath the island"--Provided by publisher.
Two of the most powerful tools used to study magnetic materials are inelastic neutron scattering and THz spectroscopy. Because the measured spectra provide a dynamical fingerprint of a magnetic material, those tools enable scientists to unravel the structure of complex magnetic states and to determine the microcscopic interactions that produce them. This book discusses the experimental techniques of inleastic neutron scattering and THz spectroscopy and provides the theoretical tools required to analyze their measurements using spin-wave theory. For most materials, this analysis can resolve the microscopic magnetic interactions such as exchange, anisotropy, and Dzyaloshinskii-Moriya interactions. Assuming a background in elementary statistical mechanics and a familiarity with the quantized harmonic oscillator, this book presents a comprehensive review of spin-wave theory and its applications to both inelastic neutron scattering and THz spectroscopy. Spin-wave theory is used to study several model magnetic systems, including non-collinear magnets such as spirals and cycloids that are produced by geometric frustration, competing exchange interactions, or Dzyaloshinskii-Moriya interactions. Several case studies utilizing spin-wave theory to analyze inelastic neutron-scattering and THz spectroscopy measurements are presented. These include both single crystals and powders and both oxides and molecule-based magnets. In addition to sketching the numerical techniques used to fit dynamical spectra based on microscopic models, this book also contains over 70 exercises that can be performed by beginning graduate students.
The "Physics in Collision" conference aims to provide an overview of the main topics of high energy physics. This annual international meeting consists of three days of exclusive review talks, given by invited speakers. As a result, it has taken on a unique character, ideal for those who wish to be brought up to date on the current status of particle physics."--Publisher's website.
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