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Authored by many of the world's leading experts on high-Tc superconductivity, this volume presents a panorama of ongoing research in the field, as well as insights into related multifunctional materials. The contributions cover many different and complementary aspects of the physics and materials challenges, with an emphasis on superconducting materials that have emerged since the discovery of the cuprate superconductors, for example pnictides, MgB2, H2S and other hydrides. Special attention is also paid to interface superconductivity. In addition to superconductors, the volume also addresses materials related to polar and multifunctional ground states, another class of materials that owes its discovery to Prof. Müller's ground-breaking research on SrTiO3.
Hotspots are enigmatic surface features that are not easily explained in the framework of plate tectonics. Investigating their origin is the goal of this thesis, using field evidence collected in the Cape Verde Islands, a prominent hotspot archipelago in the eastern Atlantic Ocean. The approach taken is to document uplift of the islands relative to sea level and use the uplift features to test various models of hotspot development. Island uplift is thought to arise from the growth of the anomalously shallow seafloor on which the islands rest, known as the bathymetric swell, which is characteristic of hotspots. The work comprises a geological summary and detailed mapping of paleo sea level markers on Cape Verde. Isotopic dating of the markers shows that uplift on the islands over the last 6 Myr is up to 400 m, and that the uplift chronology varies among islands. Two processes act to raise the Cape Verde Islands. The dominant process is one that is local to individual islands. The regional, swell-related component is smaller, and possibly episodic. The observations provide strong constraints on swell development and on hotspot models.
This essential book examines the most up-to-date information on scleroderma, offering a clear and concise synthesis of current concepts in pathogenesis and modern approaches to management. Presents a multidisciplinary approach to scleroderma care.
This volume is the product of a technical session organized for the 2002 Geological Society of America Annual Meeting in recognition of Isaac Kaplan's many contributions to various fields of geochemistry. As Kaplan enters his sixth decade of scientific investigation, it is fair to say that his work has touched or influenced innumerable scientists either directly or indirectly. Readers of this volume are presented with a collection of 29 papers written by former students, post-doctoral researchers, friends and colleagues from countries all over the world (including Sweden, Japan, Taiwan, New Zealand, Australia, Israel and the United States) from the fields of stable isotope, forensic, environ...
The Quechua people of southern Peru are both agriculturalists and herders who maintain large herds of alpacas and llamas. But they are also weavers, and it is through weaving that their cultural traditions are passed down over the generations. Owing to the region's isolation, the textile symbols, forms of clothing, and technical processes remain strongly linked to the people's environment and their ancestors. Heckman's photographs convey the warmth and vitality of the Quechua people and illustrate how the land is intricately woven into their lives and their beliefs. Quechua weavers in the mountainous regions near Cuzco, Peru, produce certain textile forms and designs not found elsewhere in t...
The human head has had important political, ritual and symbolic meanings throughout Andean history. Scholars have spoken of captured and trophy heads, curated crania, symbolic flying heads, head imagery on pots and on stone, head-shaped vessels, and linguistic references to the head. In this synthesizing work, cultural anthropologist Denise Arnold and archaeologist Christine Hastorf examine the cult of heads in the Andes—past and present—to develop a theory of its place in indigenous cultural practice and its relationship to political systems. Using ethnographic and archaeological fieldwork, highland-lowland comparisons, archival documents, oral histories, and ritual texts, the authors draw from Marx, Mauss, Foucault, Assadourian, Viveiros del Castro and other theorists to show how heads shape and symbolize power, violence, fertility, identity, and economy in South American cultures.
Biological processes in the oceans play a crucial role in regulating the fluxes of many important elements such as carbon, nitrogen, sulfur, oxygen, phosphorus, and silicon. As we come to the end of the 20th century, oceanographers have increasingly focussed on how these elements are cycled within the ocean, the interdependencies of these cycles, and the effect of the cycle on the composition of the earth's atmosphere and climate. Many techniques and tools have been developed or adapted over the past decade to help in this effort. These include satellite sensors of upper ocean phytoplankton distributions, flow cytometry, molecular biological probes, sophisticated moored and shipboard instrum...
The past one hundred years of ocean science have been distinguished by dramatic milestones, remarkable discoveries, and major revelations. This book is a clear and lively survey of many of these amazing findings. Beginning with a brief review of the elements that define what the ocean is and how it works—from plate tectonics to the thermocline and the life within it—Wolf H. Berger places current understanding in the context of history. Essays treat such topics as beach processes and coral reefs, the great ocean currents off the East and West Coasts, the productivity of the sea, and the geologic revolution that changed all knowledge of the earth in the twentieth century.
Advances in Organometallic Chemistry