270,011 research outputs found

    Bihomogeneity of solenoids

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    Solenoids are inverse limit spaces over regular covering maps of closed manifolds. M.C. McCord has shown that solenoids are topologically homogeneous and that they are principal bundles with a profinite structure group. We show that if a solenoid is bihomogeneous, then its structure group contains an open abelian subgroup. This leads to new examples of homogeneous continua that are not bihomogeneous.Comment: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol2/agt-2-1.abs.htm

    Old Games, Same Concerns: Examining First Generation Video Games Through Popular Press Coverage from 1972-1985

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    This study explores early video game technology by examining video game fears in the popular press in the 1970s and 1980s. This textual analysis examines games during their formative years, assesses risks associated with new technology, and encourages critical examination of technophobia in news media. This topic is particularly relevant in light of the Supreme Court’s recent decision regarding video game regulation. Key findings include: physical ailment fears, deviant behavior fears, fears related to drug use, and violent behavior fears. These fears persist, for the most part, in contemporary mainstream coverage

    Pediatric Heart Conditions: What Do Occupational Therapists Need to Know?

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    Teachers and teaching in upper secondary education: a comparison of systems in place across secondary and FE sectors

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    The training of teachers in upper secondary education varies considerably dependent on whether training is undertaken as a secondary school teacher or as a teacher within the Further Education (FE) system. Indeed, until the late 1990s, the training of teachers in FE had been the focus of little regulation by Government. Differences also occur across the UK with different pathways in place in the home countries. Regardless of the pathway taken to teaching in upper secondary education there are concerns that the teaching in schools and FE is still not good enough. The Coalition Government has proposed many reforms to the training of teachers in schools and a consultation exercise has been undertaken on the training of teachers in the FE sector. This article will review current approaches to the training of teachers in the home countries of the UK. Attention will be given to the proposed reforms in order to consider how these might contribute to raising the standard of teacher training and hence the quality of teaching in schools and FE. © 2011 Institute of Education, University of London

    Child Pornography\u27s Forgotten Victims

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    The goal of this paper is to demonstrate that possession of child pornography is not a victimless crime. It will illustrate the problem and explain the harm suffered by its victims. It will then trace factors that may have contributed to the perception that possession of child pornography is a victimless offense. The first factor is the dual nature of the child pornography laws that addresses both actual and future harm. When this duality is applied to possessors, their link to actual harm appears attenuated because the possessor is not involved in the acts of sexual abuse inherent in producing the images. The second factor is that a number of scholars have criticized generally possession offenses as a tool for preemptive prosecutions, but they have not exempted child pornography from their condemnation. Finally, technology itself is a cause. The growth of the Internet and the ability to find images from the comfort of one\u27s home further weakens the connection between the victim and the viewer; this distance is exacerbated by a general sense that nothing is real in cyberspace

    One Voice, Ancient and Resigned

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    While we know, or at least can imagine, what Gower looked like in his old age, it is hard to imagine or hear his voice. And yet, given what we know about his old age and visual impairments, his voice necessarily was important to his old age and continuing revisions of his texts. In this article, I attempt to reconstruct from some of his later poetry what that voice might have sounded like, at least in-text, and piece together how later authors heard that voice of old age

    On Descriptive Complexity, Language Complexity, and GB

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    We introduce LK,P2L^2_{K,P}, a monadic second-order language for reasoning about trees which characterizes the strongly Context-Free Languages in the sense that a set of finite trees is definable in LK,P2L^2_{K,P} iff it is (modulo a projection) a Local Set---the set of derivation trees generated by a CFG. This provides a flexible approach to establishing language-theoretic complexity results for formalisms that are based on systems of well-formedness constraints on trees. We demonstrate this technique by sketching two such results for Government and Binding Theory. First, we show that {\em free-indexation\/}, the mechanism assumed to mediate a variety of agreement and binding relationships in GB, is not definable in LK,P2L^2_{K,P} and therefore not enforcible by CFGs. Second, we show how, in spite of this limitation, a reasonably complete GB account of English can be defined in LK,P2L^2_{K,P}. Consequently, the language licensed by that account is strongly context-free. We illustrate some of the issues involved in establishing this result by looking at the definition, in LK,P2L^2_{K,P}, of chains. The limitations of this definition provide some insight into the types of natural linguistic principles that correspond to higher levels of language complexity. We close with some speculation on the possible significance of these results for generative linguistics.Comment: To appear in Specifying Syntactic Structures, papers from the Logic, Structures, and Syntax workshop, Amsterdam, Sept. 1994. LaTeX source with nine included postscript figure
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