The Jack Lisp API Version 1.1

The Lisp interface to Jack will allow general programming of Jack internals and should simplify all forms of Jack development. It will be distributed with Jack-5.7 and will allow users without source code to extend or modify Jack, and users with source code to have a high-level, object-oriented, interactive prototyping environment. After prototyping in lisp, developers can rewrite their code in C++ if speed is crucial, otherwise, code can be left in lisp to simplify maintenance and to insure upward compatibility with future Jack versions

A Brave New World of Free Speech: Should Interactive Computer Service Providers Be Held Liable for the Information They Disseminate?

Millions of people worldwide use online services to communicate via e-mail; to post and read messages on bulletin boards; to receive news, financial information and updated sports scores; and to gather information. Nearly anyone with access to the Internet can post information without having the facts verified or the content edited, so it is extremely likely that if they post defamatory material, it can find its way around the world in a matter of minutes. Due to the anonymous nature of the Internet, the author of the defamatory material may never be discovered. Assuming the author cannot be traced, the question then becomes: Should an interactive computer service provider be held liable for the material it disseminates

Metaphor and "metaphysic" : the sense of language in D.H. Lawrence

This study contributes to the contemporary debate about the language of D. H. Lawrence concentrating on metaphor as the necessary vehicle of Lawrence's 'metaphysic'. The focus is on the different levels of attention to language in his work, and to Lawrence's responsiveness to the levels of metaphor within language. Lawrence is seen here as one who, in the Heideggerean sense, 'poetically thinks'. The texts outlined below are given special consideration, representing a particular body of language and thought within Lawrence's oeuvre Chapter 1 outlines the purpose of the study and establishes the Importance of Nietzsche, Heidegger and Paul Ricoeur on language, specifically metaphor, in setting up the necessary philosophical context for discussion of Lawrence. Chapter 2 addresses the selfconsciously metaphorical language of the nominally 'discursive' essays, Psychoanalysis and the Unconscious and Fantasia of the Unconscious, underlining Lawrence's alertness to the efficacy of metaphor rather than a referential or conceptual idiom. Fresh emphasis is given to Psychoanalysis and the Unconscious as a central text in the language debate. The insights afforded by these essays make it possible to move to the fiction and, in chapter 3, to Women in Love. Here the thesis builds on Lawrence's philosophical understanding of the concept 'metaphor': in this novel, principally through a consideration of 'love', Lawrence is seen to pull metaphor away from its merely rhetorical status. Chapter 4 examines the different mode and language of The Rainbow focusing on its more enveloping, less 'frictional', medium. By chapter 5, called 'Lawrence and Language', the philosophical questions which emerge from a reading of these texts can be addressed more explicitly. Finally, a conclusion underlines the difficulties of talking about language stressing the importance, implicit throughout, of reading Lawrence on his own terms. The conscious and subliminal levels of metaphor within Lawrence's language have been seen to bear his thought. What philosophy generally explains analytically, Lawrence's language communicates metaphorically

The twistor description of integrable systems

The theory of twistors and the theory of integrable models have, for many years, developed independently of each other. However, in recent years it has been shown that there is considerable overlap between these two apparently disparate areas of mathematical physics. The aim of this thesis is twofold; firstly to show how many known integrable models may be given a natural geometrical/twistorial interpretation, and secondly to show how this leads to new integrable models, and in particular new higher dimensional models. After reviewing those elements of twistor theory that are needed in the thesis, a generalisation of the Yang-Mills self-duality equations is constructed. This is the framework into which many known examples of integrable models may be naturally fitted, and it also provides a simple way to construct higher dimensional generalisations of such models. Having constructed new examples of (2 + l)-dimensional integrable models, one of these is studied in more detail. Embedded within this system are the sine-Gordon and Non-Linear Schrodinger equations. Some solutions of this (2 + l)-dimensional integrable model are found using the 'Riemann Problem with Zeros' method, and these include the sohton solutions of the SG and NLS equations. The relation between this approach and one based the Atiyah-Ward ansatze is dicussed briefly. Scattering of localised structures in integrable models is very different from scattering in non-integrable models, and to illustrate this the scattering of vortices in a modified Abelian-Higgs model is considered. The scattering is studied, for small speeds, using the 'slow motion approximation' which involves the calculation of a moduli space metric. This metric is found for a general TV-lump vortex configuration. Various examples of scattering processes are discussed, and compared with scattering in an integrable model. Finally this geometrical approach is compared with other approaches to the study of integrable systems, such as the Hirota method. The thesis closes with some suggestions for how the KP equation may be fitted into this geometrical/twistorial scheme

Imperfection for Realistic Image Synthesis

The precision of image synthesis techniques for rendering naturalistic scenes often works contrary to the realism of the everyday world. Pristine, crystalline, uniform and perfect may describe the most idealized computer images: the surfaces are smooth, neat and crisp in appearance. Efforts to produce realism have recently focused on light and the interaction of light with surfaces. The radiosity methods have shown that proper treatment of light is often critical to the proper visual effect in an image. Even the best of these images is nearly surrealistic in its precision, and thus belies its synthetic origins

Regulation of a formin complex by the microtubule plus end protein tea1p

© 2004 Feierbach et al. This article is distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. The definitive version was published in Journal of Cell Biology 165 (2004): 697-707, doi:10.1083/jcb.200403090.The plus ends of microtubules have been speculated to regulate the actin cytoskeleton for the proper positioning of sites of cell polarization and cytokinesis. In the fission yeast Schizosaccharomyces pombe, interphase microtubules and the kelch repeat protein tea1p regulate polarized cell growth. Here, we show that tea1p is directly deposited at cell tips by microtubule plus ends. Tea1p associates in large "polarisome" complexes with bud6p and for3p, a formin that assembles actin cables. Tea1p also interacts in a separate complex with the CLIP-170 protein tip1p, a microtubule plus end–binding protein that anchors tea1p to the microtubule plus end. Localization experiments suggest that tea1p and bud6p regulate formin distribution and actin cable assembly. Although single mutants still polarize, for3{Delta}bud6{Delta}tea1{Delta} triple-mutant cells lack polarity, indicating that these proteins contribute overlapping functions in cell polarization. Thus, these experiments begin to elucidate how microtubules contribute to the proper spatial regulation of actin assembly and polarized cell growth.This research was supported by National Institutes of Health grant GM R01-GM56836, a research project grant from the American Cancer Society, a Nikon summer fellowship at the Marine Biological Laboratory (Woods Hole, MA) to F. Chang, and a National Institutes of Health postdoctoral fellowship (GM20283) to B. Feierbach

Centro Comercial de Stonestown

El hombre tiene unas tendencias y unas necesidades. Unas y otras ha de satisfacerlas en la sociedad de la que es parte. Esta, a través de sus elementos y organismos directores, debe procurar ordenarse de manera que sus componentes todos, encuentren marco adecuado para ello, es decir, que facilite sus cotidianos menesteres, que haga su vida alegre y en el cual no sólo sea posible y fácil el desarrollo de la personalidad de cada uno, sino que éste se vea estimulado