1,745 research outputs found
Correspondence from Hugh Thompson, January 14, 1991
No full textCorrespondence from Hugh Thompson to "Friends" to develop alternatives for predator management and control on the Dixie National Forest
Arizona -- 1961-65 -- Correspondence, OPV National -- letter, 1962-05-11
No full textLetter from Thompson, Hugh C. to Sabin, Albert B. dated 1962-05-11.Sabin Collection Fair Use Policy</a
Reverberation enhancement for small rooms
No full textReverberation enhancement is a technology which allows the reverberation time of a room to be increased through the use of an electronic system. These systems have traditionally been applied to improve the acoustics of large concert halls but the technology can also be used in smaller spaces with several possible applications. Previous uses of reverberation enhancement in small rooms have largely consisted of direct transplants of systems designed for large concert halls. This work investigates the complications which arise when using reverberation enhancement in a small room due to the differences in the acoustic properties of the space and also the restriction on the channel count of the system due to physical constraints.The first part of this work deals with increasing the resultant reverberation time of the room without requiring additional system channels. This is achieved through the use of processing within the system. Two methods have been investigated. The first extends the resultant reverberation time without changing the feedback gain. The processing used for this purpose is either electronic reverberation or simple delay, both of which have been shown to allow significant increases in resultant reverberation time. These changes can be predicted accurately using diffuse field theory. The other method uses time-varying processing to increase the maximum stable feedback gain. This has been shown to allow increases in resultant reverberation time but also causes undesirable artefacts which limit the usability of this technique.The second part of this work focuses on the differences in the acoustic properties of small rooms and especially the ways in which these rooms differ from a diffuse field. This includes the consideration of the modal properties of the room at low frequency which are insignificant in a large room. It has been shown that the spatial and frequency variations of the room at low frequency can be reduced through numerical optimisation of the processing within the reverberation enhancement system. Finally, the diffusion of the sound field and the early energy in the impulse response have been considered. It is shown that restrictions on the resultant reverberation time may be required in order to create a subjectively acceptable acoustic response. Overall, this work has shown that by accounting for the properties of the room, excellent performance of the system can be achieved
Referential Integrity of Links in Open Hypermedia Systems
No full textThis paper is concerned with broken hypertext links. These are links which do not refer the reader to the information that was intended by the author of the link. The paper presents three distinct models which have been adopted by various developers for the storage of hypertext links, and considers the problems that may result from adopting each of these models, and reviews and classifies a number of methods that may be adopted for preventing these problems. The link models that are reviewed range from the tightly coupled links implemented by html in the World Wide Web, through to the loosely coupled links adopted by some link server systems. The paper concludes that there can be no universal solution to this problem; rather there is a range of approaches from which hypertext developers must choose a solution appropriate to their needs
URI Disambiguation in the Context of Linked Data
No full textThe Linked Data initiative has given rise to an increasing number of RDF datasets, many of which are freely accessible online. These resources often arise as a result of database exports; however sufficient consideration may not be given to the unseen implications caused when they are used in the wider context of the Semantic Web. This paper investigates two popular resources, DBLP and DBpedia, and discusses whether the issues regarding identity management and co-reference resolution have been suitably addressed. We find that a large percentage of authors in DBLP have been conflated, and that disambiguation pages have been incorrectly linked using owl:sameAs within DBpedia. Systems for dealing with these issues are presented, and directions are given for future research
Reconciling Versioning and Context in Hypermedia Structure Servers
No full textContextual structure servers and versioning servers share a similar goal in allowing different views on a stored structure according to the viewer’s perspective. In this paper we argue that a generic contextual model can be used to facilitate versioning. In order to prove our hypothesis we have drawn on our experiences with OHP-Version to extend FOHM’s contextual model
The Cambridge history of Christianity. 9: World Christianities c. 1914-c. 2000 /
No full textThe twentieth century saw changes as dramatic as any in Christian history. The Churches suffered serious losses, both through persecution and through secularization, in what had been for several centuries their European heartlands, but grew fast in Africa and parts of Asia. This volume provides a comprehensive history of Catholicism, Protestantism and the Independent Churches in all parts of the world in the century when Christianity truly became a global religion. Written by a powerful team of specialists from many different countries, the volume is broad in scope.Includes bibliographical references (p. 648-690) and index.The Cold War, the hegemony of the United States and the golden age of Christian democracy / Dianne Kirby -- The religious ferment of the sixties / Michael Walsh -- The crisis of Christianity in the west : entering a post-Christian era? / Hugh McLeod -- The revolutions in eastern Europe and the beginnings of the post-communist era / Philip Walters -- The transformation of Latin American Christianity, c. 1950-2000 / Edward L. Cleary -- Religion and racism : struggles around segregation, "Jim Crow" and apartheid / Steve De Gruchy -- Post-colonial Christianity in Africa / David Maxwell -- South Asia, 1911-2003 / Chandra Mallampalli -- Christianity in south-east Asia, 1914-2000 / John Roxborogh -- East Asia / Richard Fox Young -- Liturgy / Bryan D. Spinks -- Relations between Christians and Jews, 1914-2000 / Daniel R. Langton -- Relations between Christians and Muslims / David Thomas -- Relations between Christians and Buddhists and Hindus / David Cheetham --^Theologies of religions / David Cheetham -- Wealth and poverty / Duncan B. Forrester -- Marriage and the family / Adrian Thatcher -- Homosexuality / David Hilliard -- Patriarchy and women's emancipation / Pirjo Markkola -- The Church as women's space / Pirjo Markkola -- Christianity and the sciences / Peter J. Bowler -- Literature and film / David Jasper -- Music and Christianity in the twentieth century / Andrew Wilson-Dickson -- Christianity and art / Jutta Vinzent -- Church architecture / Nigel Yates -- Role models / Hugh McLeod -- Being a Christian at the end of the twentieth century / Hugh McLeod.Introduction / Hugh McLeod -- Being a Christian in the early twentieth century / Hugh McLeod -- The papacy / John Pollard -- Ecumenism / David M. Thompson -- Christianity, colonialism and missions / Kevin Ward -- The pentecostal and charismatic movements / Allan Anderson -- Independency in Africa and Asia / Allan Anderson and Edmond Tang -- The great war / Michael Snape -- The Christian churches and politics in Europe, 1914-1939 / Martin Conway -- Latin America, c. 1914-c. 1950 / Christopher Abel -- African Christianity : from the world wars to decolonisation / Ogbu U. Kalu -- The African diaspora in the Caribbean and Europe from pre-emancipation to the present day / Roswith Gerloff -- Christianity in the United States during the inter-war years / Colleen McDannell -- Christian churches in Australia, New Zealand and the Pacific, 1914-1970 / Katharine Massam -- Catholicism and protestantism in the second world war in Europe / Andrew Chandler --^The twentieth century saw changes as dramatic as any in Christian history. The Churches suffered serious losses, both through persecution and through secularization, in what had been for several centuries their European heartlands, but grew fast in Africa and parts of Asia. This volume provides a comprehensive history of Catholicism, Protestantism and the Independent Churches in all parts of the world in the century when Christianity truly became a global religion. Written by a powerful team of specialists from many different countries, the volume is broad in scope
The rise and fall of the Labour league of youth
No full textThis thesis charts the rise and fall of the Labour Party’s first and most enduring youth organisation, the Labour League of Youth. The history of the League, from its birth in the early nineteen twenties to its demise in the late nineteen fifties, is placed in the context of the Labour Party’s subsequent fruitless attempts to establish and maintain a vibrant and functional youth organisation. A narrative is incorporated that illuminates the culture, organisation and political activism of the League and establishes it as a predominantly working class radical organisation. The reluctance on the part of the Labour Party to grant autonomy to its youth sections resulted in the history of the League of Youth being one of control, suppression and tension. This state of affairs ensured that subsequent youth groups, the Young Socialists and Young Labour, would be established in an atmosphere of reservation and scepticism.
The thesis places the prime responsibility for the failure of the party’s youth organisations with the party leadership but also considers the contributory factors of changing social and political circumstances. A number of themes are explored which include the impact of structure and agency factors, the power of the Parliamentary Labour Party, the political socialisation of leading figures within the party, the social context in which each of the groups emerged and the extent to which the youth groups were prey to intra-party factionalism.
The thesis redresses the balance of research where most accounts have focussed on the Young Socialists and traces the common characteristics that are prevalent in the way the party leadership has approached its relationship with its youth organisations. Use has been made of previously unpublished primary source material, the major source being the League of Youth members themselves whose recollections have helped to demonstrate the arguments put forward in this thesis
Dynamic augmentation of SCORM pre-authored course materials with adaptive links to supplementary resources
No full textIn a SCORM compliant courseware, content and the pedagogic approach to be taken are predefined by the course author. As a consequence, users are unable to learn according to their preferences, and implicitly they will all encounter the same learning experience. Recent attempts to personalise learning in SCORM often resulted in either modifying or substituting SCORM specification elements. Nonetheless, SCORM is a widely-used solution to interoperability problems. For this reason, this work focuses on supplementing SCORM rather than redefining it. This is accomplished by dynamically associating each pre-authored learning material in a SCORM package with adaptive links to relevant supplementary resources upon delivery. As a result, we have developed a Personalised Link Service (PLS) to deliver these links into user’s SCORM-compliant learning environment. In this paper, we present the design of a PLS authoring architecture which enables the automatic generation of a concept map from a SCORM package and consequently links to alternative learning resources, and a PLS run-time service oriented architecture which delivers these alternative resources, alongside the SCORM defined resources, according to a user model. We demonstrate the feasibility of our architecture by implementing a service to support a simple notion of a user model (Preferred Learning style)
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