2010 MU dissertations - Access restricted to UM
https://hdl.handle.net/10355/8041
These dissertations are accessible to UM system members only.2024-03-29T08:05:45ZAdding pieces to the monocytic ehrlichiosis puzzle : treatment, etiology and protection with a canine model
https://hdl.handle.net/10355/10922
Adding pieces to the monocytic ehrlichiosis puzzle : treatment, etiology and protection with a canine model
McClure, Jennifer Christine, 1981-
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Infections with Ehrlichia canis cause Canine Monocytic Ehrlichiosis (CME), a disease which causes morbidity and mortality of dogs worldwide. Currently, there are questions in the literature regarding efficacy of treatment, etiology of severe disease and whether previous infections offer protection to dogs when they are challenged. Through careful experimentation it was determined that although treatment with doxycycline successfully ameliorates disease, it is not sufficient to clear bacteria from infected dogs and therefore a different treatment regimen should be explored which would fully clear the bacteria. Furthermore, it was determined that E. canis alone could induce severe acute CME in specific pathogen free dogs. Lastly, dogs were infected with E. canis, treated and then given a homologous challenge. Although the dogs demonstrated less severe signs of disease three out of four had levels of bacteria in their blood higher than what was seen during the initial infection.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.; Title from PDF of title page (University of Missouri--Columbia, viewed on May 31, 2011).; Vita.; Thesis advisor: Roger William Stich.; "May 2010"; Ph. D. University of Missouri-Columbia 2010.
2010-01-01T00:00:00ZAmbrosia beetle habitat use, host use, and influence on early wood colonizing microbes in an oak-hickory forest
https://hdl.handle.net/10355/9024
Ambrosia beetle habitat use, host use, and influence on early wood colonizing microbes in an oak-hickory forest
Reed, Sharon E., 1977-
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Knowledge of how exotic ambrosia beetles influence microbe communities and how forest characteristics affect ambrosia beetle abundance will improve policy and management decision. This study aimed to characterize the ambrosia beetle community in the oak-hickory forest, determine ambrosia beetle habitat and host use, and investigate if Xylosandrus crassiusculus influences early microbe colonization of dead wood. Thirteen native and seven exotic ambrosia beetle species occurred in a central Missouri oak-hickory forest, however, the exotic component dominated the ambrosia beetle community. Stand characteristics influenced ambrosia beetle abundance but not the percent contribution of the exotic component, whereas, dead wood size influenced abundance and the percent contribution of the exotic component. Xylosandrus crassiusculus females increased the diversity and occurrence of microbes for a six month period. Ambrosia beetles likely alter microbe diversity and abundance and modifying forest characteristics by management may be a potential method to manage exotic ambrosia beetle abundance.
Title from PDF of title page (University of Missouri--Columbia, viewed on August 30, 2010).; The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.; Dissertation advisor: Dr. Rose-Marie Muzika.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00ZAssessing the predictability of election victory from a functional theory perspective
https://hdl.handle.net/10355/10919
Assessing the predictability of election victory from a functional theory perspective
Henson, Jayne R., 1979-
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This investigation utilized the Functional Theory of Campaign Discourse (Benoit, 2007) and previous content analyses of television advertisements to determine whether candidate function (positive and negative statements) and topic (policy/character) emphasis influenced election results and shifts in candidate preference. The first study demonstrated that Presidential and Senate candidate messages influenced general election results over and above that explained by incumbency and competitiveness. Gubernatorial and Senate candidate messages also influenced election results in primary competitions. The second study was a time series analysis of advertisements provided by the Wisconsin Ad study from the 2004 presidential general election and participant reports of vote intention obtained from ANES panel data. Separate time series were constructed for Kerry and Bush's average percentage of acclaims (positive statements) and policy emphasis in all ads run during the general season. Both Kerry's message series influence variation; however, neither of Bush's message strategies affected candidate preference.
Title from PDF of title page (University of Missouri--Columbia, viewed on October 21, 2010).; The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.; Dissertation advisor: Dr. William L. Benoit.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00ZAssociations between maternal awareness and children's fearfulness and anxiety
https://hdl.handle.net/10355/9016
Associations between maternal awareness and children's fearfulness and anxiety
Luebbe, Elizabeth J., 1979-
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Fearful temperament in the toddler years is a well-established precursor to risk for childhood anxiety. Less is known about the mechanisms by which stability in risk occurs, or under which conditions stability may be moderated. Mothers may be particularly influential in the developmental trajectories of fearful children. In particular, maternal protective and intrusive behaviors have been identified as occurring with great frequency with fearful children, and this may result from children's elicitations of these behaviors. Certainly, not all mothers react to displays of fear with protection or intrusiveness. The current studies focused on the maternal characteristic of awareness, or mothers' abilities to predict their toddlers' fearful reactions to novelty, as a moderator of the association between fearful temperament and maternal behavior. Two studies examined the role of maternal awareness in early associations between fearful temperament and maternal behavior. In the first study, results suggested that mothers of more temperamentally fearful toddlers who more accurately predicted their fearful behavior demonstrated more protective behavior with them in novel tasks. In this moderated relation, protective behavior then predicted mother-reported anxiety and mothers' self-reported overprotection when children entered kindergarten. In the second study, this moderation was examined further for additional conditions that specify when it occurs. Maternal awareness moderated the relation between fearful temperament and protective behaviors displayed in lower-threat contexts but not high-threat contexts. This moderation occurred for boys but not for girls and when mothers reported having higher parent-centered goals and internal attributions for their children's shy behavior. Results are discussed within the developmental psychopathology perspective of anxiety development and prevention.
Title from PDF of title page (University of Missouri--Columbia, viewed on August 25, 2010).; The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.; Dissertation advisor: Dr. Kristin Buss and Dr. Debora Bell.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00Z