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Selected AbstractsParallel bandwidth characteristics calculations for thin avalanche photodiodes on a SGI Origin 2000 supercomputerCONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 12 2004Yi Pan Abstract An important factor for high-speed optical communication is the availability of ultrafast and low-noise photodetectors. Among the semiconductor photodetectors that are commonly used in today's long-haul and metro-area fiber-optic systems, avalanche photodiodes (APDs) are often preferred over p - i - n photodiodes due to their internal gain, which significantly improves the receiver sensitivity and alleviates the need for optical pre-amplification. Unfortunately, the random nature of the very process of carrier impact ionization, which generates the gain, is inherently noisy and results in fluctuations not only in the gain but also in the time response. Recently, a theory characterizing the autocorrelation function of APDs has been developed by us which incorporates the dead-space effect, an effect that is very significant in thin, high-performance APDs. The research extends the time-domain analysis of the dead-space multiplication model to compute the autocorrelation function of the APD impulse response. However, the computation requires a large amount of memory space and is very time consuming. In this research, we describe our experiences in parallelizing the code in MPI and OpenMP using CAPTools. Several array partitioning schemes and scheduling policies are implemented and tested. Our results show that the code is scalable up to 64 processors on a SGI Origin 2000 machine and has small average errors. Copyright © 2004 John Wiley & Sons, Ltd. [source] Recapturing the Universal in the UniversityEDUCATIONAL PHILOSOPHY AND THEORY, Issue 6 2005Ronald Barnett Abstract The idea of ,the university' has stood for universal themes,of knowing, of truthfulness, of learning, of human development, and of critical reason. Through its affirming and sustaining of such themes, the university came itself to stand for universality in at least two senses: the university was neither partial (in its truth criteria) nor local in its significance (at least, the university was an institution of the nation state and even had global significance). Now, this universalism has been shot down: on the one hand, universal themes have been impugned as passé in a postmodern age; in the ,knowledge society', knowledge with a capital ,K' is giving way to multiple and even local knowledges (plural). On the other hand, the very process of globalization has been accused of being a new process of colonization. Global universities, accordingly, may be seen as a vehicle for the imposition of Western modes of reason (often suspected in turn of being no more than Western economic reason at that). Diversity is the new watchword, a term that,we may note,has come to be part of the framing of the contemporary policy agenda for higher education. Accordingly, in such a situation of multiple meanings, both within and across institutions, the university becomes an institutional means for developing the capacities,at both the personal and the societal levels,to live with ,strangeness': perhaps here lies a new universal for the university? But, then, if that is the case, if strangeness is the new universal for the university, some large challenges await those who would claim to lead and manage universities. [source] Family History as National History: Peter Henisch's Novel Die kleine Figur meines Vaters and the Issue of Memory in Austria's Second RepublicORBIS LITERARUM, Issue 2 2004Anthony Bushell This article examines an early but key text in Austria's belated examination of its citizens' role in the Third Reich. It shows how Peter Henisch's novel exposed unresolved generational conflicts within a prosperous and stable post-war Austrian society and how the text provided an example of the discussion of uncomfortable societal issues in post-war Austria through the intimate sphere of family life. Simultaneously, the book reflected upon the limitations and distortions inherent in all creative works of art, distortions that Henisch shows are present in the very process of remembering. Crucially, the work continues to invite the reader to associate the integrity of national memory with the integrity of private memory. [source] Shopping in Jenin: women, homes and political persons in the GalileeCITY & SOCIETY, Issue 2 2001Tania Forte For the past fifteen years, Palestinian women from the Galilee, who are citizens of Israel, have been going to Jenin, a large town in the West Bank, in order to shop. These excursions have profoundly modified home life, gender relations, and domestic and political identities. This paper examines the very processes by which women's shopping activities significantly contribute to the making and transformation of the household and social roles. Moreover, this new mobility among women has spurred both men and women in the Galilee to reflect upon citizenship, nationalism, and modernity. Thus an in,depth analysis of shopping provides insights on the relationship between consumption and social production, on the one hand, and political identities on the other. [Consumption, shopping, women, Israel, Palestinians] [source] |