The principal goals of the study were to articulate the scientific rationale and objectives of the field and then to take a long-term strategic view of U.S. nuclear science in the global context for setting future directions for the field. Nuclear Physics: Exploring the Heart of Matter provides a long-term assessment of an outlook for nuclear physics. The first phase of the report articulates the scientific rationale and objectives of the field, while the second phase provides a global context for the field and its long-term priorities and proposes a framework for progress through 2020 and beyond. In the second phase of the study, also developing a framework for progress through 2020 and beyond, the committee carefully considered the balance between universities and government facilities in terms of research and workforce development and the role of international collaborations in leveraging future investments. Nuclear physics today is a diverse field, encompassing research that spans dimensions from a tiny fraction of the volume of the individual particles (neutrons and protons) in the atomic nucleus to the enormous scales of astrophysical objects in the cosmos. Nuclear Physics: Exploring the Heart of Matter explains the research objectives, which include the desire not only to better understand the nature of matter interacting at the nuclear level, but also to describe the state of the universe that existed at the big bang. This report explains how the universe can now be studied in the most advanced colliding-beam accelerators, where strong forces are the dominant interactions, as well as the nature of neutrinos.

Although particle accelerators are the book's main thrust, it offers a broad synoptic description of beams which applies to a wide range of other devices such as low-energy focusing and transport systems and high-power microwave sources. Develops material from first principles, basic equations and theorems in a systematic way. Assumptions and approximations are clearly indicated. Discusses underlying physics and validity of theoretical relationships, design formulas and scaling laws. Features a significant amount of recent work including image effects and the Boltzmann line charge density profiles in bunched beams.

U.S. Arctic waters north of the Bering Strait and west of the Canadian border encompass a vast area that is usually ice covered for much of the year, but is increasingly experiencing longer periods and larger areas of open water due to climate change. Sparsely inhabited with a wide variety of ecosystems found nowhere else, this region is vulnerable to damage from human activities. As oil and gas, shipping, and tourism activities increase, the possibilities of an oil spill also increase. How can we best prepare to respond to such an event in this challenging environment? Responding to Oil Spills in the U.S. Arctic Marine Environment reviews the current state of the science regarding oil spill response and environmental assessment in the Arctic region north of the Bering Strait, with emphasis on the potential impacts in U.S. waters. This report describes the unique ecosystems and environment of the Arctic and makes recommendations to provide an effective response effort in these challenging conditions. According to Responding to Oil Spills in the U.S. Arctic Marine Environment, a full range of proven oil spill response technologies is needed in order to minimize the impacts on people and sensitive ecosystems. This report identifies key oil spill research priorities, critical data and monitoring needs, mitigation strategies, and important operational and logistical issues. The Arctic acts as an integrating, regulating, and mediating component of the physical, atmospheric and cryospheric systems that govern life on Earth. Not only does the Arctic serve as regulator of many of the Earth's large-scale systems and processes, but it is also an area where choices made have substantial impact on life and choices everywhere on planet Earth. This report's recommendations will assist environmentalists, industry, state and local policymakers, and anyone interested in the future of this special region to preserve and protect it from damaging oil spills.

In October 2016, the Ethiopian administration declared a State of Emergency in response to anti-Government demonstrations and mass riots. Officially said to result from subversive activities channelled from Eritrea, Egypt and diasporic populations in the West, the evidence in fact suggests that the riots stemmed from widespread internal dissatisfaction. Large-scale land dispossessions following bilateral deals with transnational agribusiness, damming of major rivers, construction of sugar estates and industry parks as well as urban sprawl have put pressure on agricultural and rural areas. Today, displacement, drought and widening inequalities surround fears of severe food shortages and political instability. Drawing on informant testimonies, court archives, field reports and other sources, the author examines these developments in Ethiopia's lake region. He shows how transformations over time in spatial politics, state-society relations and the organization of production and exchange have influenced the situation today, and reveals the impact of these changes on a population of smallholder farmers for which agriculture is not only the mainstay of the national economy but a way of life. Getnet Bekele is Associate Professor of History at Oakland University, MI, where he teaches African History and the Environmental and Economic History of Africa and the Global South.

Can the university solve the social and political crisis in America? Higher education occupies a difficult place in twenty-first-century American culture. Universities—the institutions that bear so much responsibility for the future health of our nation—are at odds with the very publics they are intended to serve. As Kathleen Fitzpatrick asserts, it is imperative that we re-center the mission of the university to rebuild that lost trust. Critical thinking—the heart of what academics do—can today often negate, refuse, and reject new ideas. In an age characterized by rampant anti-intellectualism, Fitzpatrick charges the academy with thinking constructively rather than competitively, building new ideas rather than tearing old ones down. She urges us to rethink how we teach the humanities and to refocus our attention on the very human ends—the desire for community and connection—that the humanities can best serve. One key aspect of that transformation involves fostering an atmosphere of what Fitzpatrick dubs "generous thinking," a mode of engagement that emphasizes listening over speaking, community over individualism, and collaboration over competition. Fitzpatrick proposes ways that anyone who cares about the future of higher education can work to build better relationships between our colleges and universities and the public, thereby transforming the way our society functions. She encourages interested stakeholders to listen to and engage openly with one another's concerns by reading and exploring ideas together; by creating collective projects focused around common interests; and by ensuring that our institutions of higher education are structured to support and promote work toward the public good. Meditating on how and why we teach the humanities, Generous Thinking is an audacious book that privileges the ability to empathize and build rather than simply tear apart.

The enteric nervous system (ENS) is a complex neural network embedded in the gut wall that orchestrates the reflex behaviors of the intestine. The ENS is often referred to as the “little brain” in the gut because the ENS is more similar in size, complexity and autonomy to the central nervous system (CNS) than other components of the autonomic nervous system. Like the brain, the ENS is composed of neurons that are surrounded by glial cells. Enteric glia are a unique type of peripheral glia that are similar to astrocytes of the CNS. Yet enteric glial cells also differ from astrocytes in many important ways. The roles of enteric glial cell populations in the gut are beginning to come to light and recent evidence implicates enteric glia in almost every aspect of gastrointestinal physiology and pathophysiology. However, elucidating the exact mechanisms by which enteric glia influence gastrointestinal physiology and identifying how those roles are altered during gastrointestinal pathophysiology remain areas of intense research. The purpose of this e-book is to provide an introduction to enteric glial cells and to act as a resource for ongoing studies on this fascinating population of glia. Table of Contents: Introduction / A Historical Perspective on Enteric Glia / Enteric Glia: The Astroglia of the Gut / Molecular Composition of Enteric Glia / Development of Enteric Glia / Functional Roles of Enteric Glia / Enteric Glia and Disease Processes in the Gut / Concluding Remarks / References / Author Biography