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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.
181

ROVER| A DNS-based method to detect and prevent IP hijacks

Gersch, Joseph E. 26 February 2014 (has links)
<p> The Border Gateway Protocol (BGP) is critical to the global internet infrastructure. Unfortunately BGP routing was designed with limited regard for security. As a result, IP route hijacking has been observed for more than 16 years. Well known incidents include a 2008 hijack of YouTube, loss of connectivity for Australia in February 2012, and an event that partially crippled Google in November 2012. Concern has been escalating as critical national infrastructure is reliant on a secure foundation for the Internet. Disruptions to military, banking, utilities, industry, and commerce can be catastrophic. </p><p> In this dissertation we propose ROVER (Route Origin VERification System), a novel and practical solution for detecting and preventing origin and sub-prefix hijacks. ROVER exploits the reverse DNS for storing route origin data and provides a fail-safe, best effort approach to authentication. This approach can be used with a variety of operational models including fully dynamic in-line BGP filtering, periodically updated authenticated route filters, and real-time notifications for network operators. </p><p> Our thesis is that ROVER systems can be deployed by a small number of institutions in an incremental fashion and still effectively thwart origin and sub-prefix IP hijacking despite non- participation by the majority of Autonomous System owners. We then present research results supporting this statement. We evaluate the effectiveness of ROVER using simulations on an Inter- net scale topology as well as with tests on real operational systems. Analyses include a study of IP hijack propagation patterns, effectiveness of various deployment models, critical mass requirements, and an examination of ROVER resilience and scalability.</p>
182

An investigation of explicit teaching for literacy in science :

Bills, Dianne Unknown Date (has links)
Thesis (MEd) -- University of South Australia, 1993
183

An investigation of explicit teaching for literacy in science :

Bills, Dianne Unknown Date (has links)
Thesis (MEd) -- University of South Australia, 1993
184

Science Olympiad students' nature of science understandings

Philpot, Cindy J. January 2007 (has links)
Thesis (Ph. D.)--Georgia State University, 2007. / Title from file title page. Lisa Martin-Hansen, committee chair; Geeta Verma, Olga Jarrett, Michael Dias, committee members. Electronic text (147 p. : ill.) : digital, PDF file. Description based on contents viewed Nov. 16, 2007. Includes bibliographical references (p. 131-143).
185

Hermes Recidivus : a postmodern reading of the recrudescence of the Hermetic imagary /

Marvell, Leon. Leibniz, Gottfried Wilhelm, Fludd, Robert, January 1998 (has links)
Thesis (Ph.D.) -- University of Western Sydney, Hawkesbury, 1998. / Thesis submitted for the degree of doctor of philosophy. Includes bibliographical references (leaves 215-220).
186

Toward a richer vocabulary for epistemic attitudes mapping the cognitive landscape /

McKaughan, Daniel J. January 2007 (has links)
Thesis (Ph. D.)--University of Notre Dame, 2007. / Thesis directed by Don Howard for the Program in History and Philosophy of Science. "July 2007." Includes bibliographical references (leaves 385-420).
187

Experiments on theories : the construction of scientific computer simulation /

Dowling, Deborah Caitlin. January 1998 (has links)
Thesis ((Ph.D.)--University of Melbourne, Dept. of History and Philosophy of Science, 1998. / Includes bibliographic references.
188

Teacher attitudes toward science at the early childhood level /

Visone, Kerry F., January 2009 (has links) (PDF)
Thesis (M.S.) -- Central Connecticut State University, 2009. / Thesis advisor: Maxine Howell. "... in partial fulfillment of the requirements for the degree of Master of Science in Early Childhood Development." Includes bibliographical references (leaves 99-103). Also available via the World Wide Web.
189

Mining help desk emails for problem domain identification and email feature engineering for routing incoming emails /

Rathi, Dinesh. January 2008 (has links)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008. / Source: Dissertation Abstracts International, Volume: 69-05, Section: B, page: 3106. Adviser: Michael B. Twidale. Includes bibliographical references (leaves 267-280) Available on microfilm from Pro Quest Information and Learning.
190

Project science inquiry an exploration of elementary teachers' beliefs and perceptions about science teaching and learning /

Wilcox, Dawn Renee, January 2008 (has links)
Thesis (Ph.D.)--George Mason University, 2008. / Vita: p. 868. Thesis director: Anastasia P. Samaras. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Education. Title from PDF t.p. (viewed July 3, 2008). Includes bibliographical references (p. 856-867). Also issued in print.

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