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This volume surveys our current scientific understanding of the
terrestrial aurora. It is organized into eleven reviews detailing
theoretical and observational aspects of characteristic auroral
morphologies, and how these in turn are organized according to
local time, latitude, and activity level. Popular descriptions
often attribute the aurora to the interaction of charged particles
from the solar wind with atoms in the upper atmosphere. In fact,
most auroras are not the result of direct entry of solar wind
particles. Rather, as detailed in this volume, auroral particle
acceleration and generation of auroral forms occur primarily within
the magnetosphere. Importantly, many key aspects of the aurora -
most notably, the physical mechanisms responsible for the
generation of discrete arcs - are still unexplained, and auroral
physics continues to be an active area of scientific research. Each
review chapter therefore includes a summary of open questions for
further investigation. Providing the first comprehensive review of
the terrestrial aurora in two decades, this book will aid both
active researchers and newcomers interested in understanding the
current state of the field. Previously published Space Science
Reviews in the Topical Collection "Auroral Physics"
"Bioarchaeology and Identity in the Americas" represents an
important shift in the interpretation of skeletal remains in the
Americas. Until recently, bioarchaeology has focused on
interpreting and analyzing populations. The contributors here look
to examine how individuals fit into those larger populations. The
overall aim is to demonstrate how bioarchaeologists can uniquely
contribute to our understanding of the formation, representation,
and repercussions of identity. The contributors combine historical
and archaeological data with population genetic analyses,
biogeochemical analyses of human tooth enamel and bones, mortuary
patterns, and body modifications. With case studies drawn from
North, Central, and South American mortuary remains from AD 500 to
the Colonial period, they examine a wide range of factors that make
up identity, including ethnicity, age, gender, and social,
political, and religious constructions. By adding a valuable
biological element to the study of culture--a topic traditionally
associated with social theorists, ethnographers, and historical
archaeologies--this volume highlights the importance of skeletal
evidence in helping us better understand our past.
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