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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Breaking-up is hard to do: A unique methodology for unbundling a “Big Deal”

Dawson, Diane January 2014 (has links)
Academic libraries acquire access to many journal titles through “Big Deal” bundles. As serials prices continue to rise at unsustainable rates it will become increasingly necessary to consider breaking-up these packages and just subscribing to the most important titles individually. Recently, it appeared that the University Library, University of Saskatchewan would likely no longer be able to afford the American Chemical Society (ACS) bundle of 40+ titles, and tough decisions would need to be made. Usage data on each title were readily available – but is that enough evidence? Working under the common assumption that the primary users of this package are the Chemistry Department researchers, a citation analysis was conducted on what ACS journals these users recently published in and cited in their articles. In an effort to engage chemistry researchers and offer them a voice in the process, a survey of their opinions on each ACS title was also conducted. It was hoped that combining data from these three discrete sources: usage statistics, citation analyses, and user feedback, would enable us to arrive at the most conscientious, evidence-based decisions possible. This study took the novel approach of applying a citation analysis technique to usage data and survey responses. Although unconventional, this unique methodology proved useful in this situation. This presentation will describe the steps taken and discuss the benefits and challenges of this method so that librarians may consider whether this approach could be adapted to their own collections analysis needs. / Slides from presentation at the Centre for Evidence Based Library and Information Practice (C-EBLIP) Fall Symposium, October 15, 2014
42

Unbundling a Big Deal: Comparing Three Data Sources to Come to Decisions

Dawson, Diane January 2014 (has links)
Academic libraries in Canada acquire many “big deal” journal packages through a national consortium, the Canadian Research Knowledge Network (CRKN). Recently, negotiations with the American Chemical Society (ACS) broke down and it appeared that member libraries would need to negotiate with ACS individually for the Web Editions bundle of 40+ titles. It soon became clear that the University Library, University of Saskatchewan would likely no longer be able to afford the entire package, and tough decisions would need to be made. Usage data on each title were readily available – but is that enough evidence? Working under the common assumption that the primary users of this package are the Chemistry Department researchers, a citation analysis was conducted on what ACS journals these users recently published in and cited in their articles. The Chemistry Department was kept informed of developments in the ACS/CRKN situation, and expressed interest and concern in the outcome. In an effort to continue to engage chemistry researchers and offer them a voice in the process, a survey of their opinions on each ACS title was also conducted. It was hoped that combining data from these three discrete sources: usage statistics, citation analyses, and user feedback, would enable us to arrive at the most conscientious, evidence-based decisions possible. This presentation will discuss the outcome of this thorough analysis and consider the benefits and challenges of this comprehensive methodology and whether it is practical in every situation. / Slides from "Featured Paper" presentation to STS Research Forum, American Library Association Annual Conference, Las Vegas, June 2014
43

Fibrewise CoHopf spaces

Sunderland, A. M. January 1992 (has links)
A fibrewise coHopf space X over a base B is a sectioned space for which the diagonal map X —> X x <sub>B</sub>X may be compressed into X V<sub>B</sub>X up to fibrewise pointed homotopy. Such spaces have been investigated by I. M. James in the case where X is a sphere bundle over a sphere. The purpose of this thesis is to demonstrate some of the properties of fibrewise coHopf spaces over more general bases. Particular attention is given to sphere bundles and fibrations with spherical fibre. The fibrewise reduced suspension of a sectioned fibrewise space with closed sec- tion is fibrewise coHopf with associative comultiplication (up to fibrewise pointed homotopy) and a fibrewise inversion. Examples of fibrewise coHopf spaces not of this form are exhibited, and sufficient conditions are given to ensure that a fibrewise coHopf space has the primitive fibrewise pointed homotopy type of a fibrewise re- duced suspension, in terms of the dimension and connectivity of the space, its base and the fibres. It is shown that these conditions may be relaxed if the fibrewise coHopf structure on the space is assumed to be homotopy-associative. An example of a non-associative fibrewise coHopf sphere bundle is given. It is shown that, if q > 1 is odd, a sectioned orientable q-sphere bundle over a finite connected complex is fibrewise coHopf if and only if its fibrewise localisation at the prime 2 is fibrewise coHopf. Moreover, the fibrewise rationalisation of an odd-dimensional sphere bundle over a finite polyhedron whose fibrewise unreduced suspension is fibrewise coHopf is shown to be a trivial fibration. As an application, it is shown that new fibrewise coHopf spherical fibrations may be constructed by mixing. The Thorn space is used to determine the cohomology ring of the total space of a fibrewise coHopf sphere bundle in terms of that of its base, and a generalised Hopf invariant is constructed which vanishes on fibrewise coHopf sphere bundles.
44

Knots on once-punctured torus fibers

Baker, Kenneth Lee, Luecke, John Edwin, January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: John Luecke. Vita. Includes bibliographical references. Available also from UMI company.
45

Extensions of stable rank-3 vector bundles on ruled surface /

Fan, Chun-Lin. January 2004 (has links)
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004. / Includes bibliographical references (leaves 20-21). Also available in electronic version. Access restricted to campus users.
46

Classification of almost homogeneous complex surfaces

Potter, Joseph Antonius Maria, January 1969 (has links)
Proefschrift-Leyden. / Summary in Dutch. Vita. Bibliography: p. 70-72.
47

Integralformeln und a priori-Abschätzungen für das [delta bar]-Neumann-Problem

Strauss, Albrecht. January 1988 (has links)
Thesis (doctoral)--Universität Bonn, 1988. / Cover title: Integraldarstellungen und a priori-Abschätzungen für das [delta bar]-Neumann-Problem. Includes bibliographical references (p. 94-96).
48

Der Diracoperator auf Faserungen

Kramer, Wolfram. January 1999 (has links)
Thesis (doctoral)--Bonn, 1998. / Includes bibliographical references (p. 84-86).
49

Vector Bundles and Projective Varieties

Marino, Nicholas John 29 January 2019 (has links)
No description available.
50

Some Applications of Fibre Bundle Techniques in Physics

Jessup, Barry 03 1900 (has links)
<p> Both the theories of differential geometry and of Lie groups and their algebras have been invaluable to the physicist. In the theory of fibre bundles and in the symplectic formulation of mechanics, these fields coalesce to provide a rich structure that enables her/him to obtain a more unified overview of the modern theories in physics. In this short work, we introduce this structure and examine its consequences in general relativity and quantum mechanics.</p> / Thesis / Master of Science (MSc)

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