Hanging Together Higham, John; Guarneri, Carl J
2008, 2013-09-02
eBook
How has America, with its many ethnic, class, and ideological divisions, allowed divergent groups to 'hang together' as Americans? This book explores the ways in which Americans have conceived of a ...national identity and demonstrates that an appreciation of America's kaleidoscopic diversity can be reconciled with an affirmation of its common national culture.
The electric industry has no standard practice for forecasting customer enrollment with Community Choice Aggregations (CCAs). We propose an analytical approach that treats potential CCA formations ...and dissolutions in specific communities as a diagnosis relying on expert opinions, rather than as a pure statistical exercise characteristic of traditional load forecasting. Our approach relies on an investigation into customer needs and preferences, systematically gathered insights from community experts, and a relatively simple application of Bayesian economics.
This book presents three decades of writings by one of America’s most distinguished historians. John Higham, renowned for his influential works on immigration, ethnicity, political symbolism, and the ...writing of history, here traces the changing contours of American culture since its beginnings, focusing on the ways that an extraordinarily mobile society has allowed divergent ethnic, class, and ideological groups to “hang together” as Americans. The book includes classic essays by Higham and more recent writings, some of which have been substantially revised for this publication. Topics range widely from the evolution of American national symbols and the fate of our national character to new perspectives on the New Deal, on other major turning points, and on changes in race relations after major American wars. Yet they are unified by an underlying theme: that a heterogeneous society and an inclusive national culture need each other.
The Rise of Multiprecision Arithmetic Higham, Nicholas John
2017 IEEE 24th Symposium on Computer Arithmetic (ARITH),
2017-July
Conference Proceeding
Recenzirano
"There is a growing demand for and availability of multiprecision arithmetic: floating point arithmetic supporting multiple, possibly arbitrary, precisions. For an increasing body of applications, ...including in supernova simulations, electromagnetic scattering theory, and computational number theory, double precision arithmetic is insufficient to provide results of the required accuracy. On the other hand, for climate modelling and deep learning half precision (about four significant decimal digits) has been shown to be sufficient in some studies. We discuss a number of topics involving multiprecision arithmetic, including:* The need for, availability of, and ways to exploit, higher precision arithmetic (e.g., quadruple precision arithmetic).* How to derive linear algebra algorithms that will run in any precision, as opposed to be being optimized (as some key algorithms are) for double precision.* For solving linear systems with the use of iterative refinement, the benefits of suitably combining three different precisions of arithmetic (say, half, single, and double).* How a new form of preconditioned iterative refinement can be used to solve very ill conditioned sparse linear systems to high accuracy."
Dialogic Teaching (DT) is effective in fostering student learning; yet, it is hard to implement. Little research focused on secondary teachers' learning of DT and on the link between teachers' ...understanding and practices, although these two are usually strongly intertwined. Using a wide range of evidence, this case study systematically investigated and compared two secondary teachers' understanding and practice of DT during their participation in a continuing professional development programme (CPDP). The CPDP appeared effective to some extent. The History teacher's understanding of DT, i.e. being a co-learner, appeared highly effective in implementing DT, whereas the Mathematics teacher's understanding of DT, i.e. creating a democratic learning environment, seemed only effective to some extent. Focusing on both teachers' understanding and practice when developing DT seemed fruitful in explaining differences in practice. Future research could further explore to what extent understanding DT as being a co-learner facilitates professional development.
Never before has the legitimacy of a dominant American culture been so hotly contested as over the past two decades. Familiar terms such as culture wars, multiculturalism, moral majority, and family ...values all suggest a society fragmented by the issue of cultural diversity. So does any social solidarity exist among Americans? In Diversity and Its Discontents, a group of leading sociologists, political theorists, and social historians seek to answer this question empirically by exploring ideological differences, theoretical disputes, social processes, and institutional change. Together they present a broad yet penetrating look at American life in which cultural conflict has always played a part. Many of the findings reveal that this conflict is no more or less rampant now than in the past, and that the terms of social solidarity in the United States have changed as the society itself has changed. The volume begins with reflections on the sources of the current "culture wars" and goes on to show a number of parallel situations throughout American history--some more profound than today's conflicts. The contributors identify political vicissitudes and social changes in the late twentieth century that have formed the backdrop to the "wars, " including changes in immigration, marriage, family structure, urban and residential life, and expression of sexuality. Points of agreement are revealed between the left and the right in their diagnoses of American culture and society, but the essays also show how the claims of both sides have been overdrawn and polarized. The volume concludes that above all, the antagonists of the culture wars have failed to appreciate the powerful cohesive forces in Americans' outlooks and institutions, forces that have, in fact, institutionalized many of the "radical" changes proposed in the 1960s. Diversity and Its Discontents brings sound empirical evidence, theoretical sophistication, and tempered judgment to a cultural episode in American history that has for too long been clouded by ideological rhetoric. In addition to the editors, the contributors are Seyla Benhabib, Jean L. Cohen, Reynolds Farley, Claude S. Fischer, Frank F. Furstenberg, Jr., John Higham, David A. Hollinger, Steven Seidman, Marta Tienda, David Tyack, R. Stephen Warner, Robert Wuthnow, and Viviana A. Zelizer.
Dialogic theories and practices in education have grown over the last decade; in the United Kingdom, however, most research in the field has been carried out in primary schools. Six leading academic ...researchers in the field are interviewed to explore the reasons for this primary bias to date, and their perceptions of both the difficulties and the potential benefits of dialogic education in secondary schools. Primary schools are portrayed as having greater flexibility and a more holistic approach that is conducive to dialogue; secondary schools, as restricted by organisational, psychological and assessment pressures. These issues are seen as significant but not insurmountable; furthermore, a consensus emerges about the validity and necessity of dialogic approaches in secondary schools. Distinct affordances are suggested and explored. The case is then made for greater research and practice of dialogic secondary education: away from the study of individual subjects as unitary and segregated bodies of knowledge, and towards encouraging dialogues within and across academic subjects as a way of increasing students' motivation, enriching their learning, and promoting more flexible thinking.
Its volume fluctuates, its sources change. Immigration of some kind, however, is one of the constants of American history, called forth by the energies of capitalism and the attractions of regulated ...freedom. From the outset those energies and attractions have also characterized the country at large. Capitalism, Carl Degler (1959, 1) once observed, came in the first ships. The same westerly breezes carried the seeds of freedom, which have swelled into the most celebrated, though equivocal, feature of American society and institutions.
The resulting congruities between immigrants as a type and migration as a national style have nourished both the
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