2010 MU dissertations - Freely available onlineThese dissertations are accessible to the general public.https://hdl.handle.net/10355/80392024-03-28T10:50:40Z2024-03-28T10:50:40Z2,1-Benzothiazines : preparation and reactivityCalkins, Nathan L., 1982-https://hdl.handle.net/10355/83092022-09-27T15:49:54Z2010-01-01T00:00:00Z2,1-Benzothiazines : preparation and reactivity
Calkins, Nathan L., 1982-
The synthesis of chiral ligands to tune the reactivity and stereoselectivity of many catalytic asymmetric reactions has been given considerable attention in synthetic organic chemistry over the past decade. This report will show the results of efforts toward the syntheses of several families of enantiomerically pure 2,1-benzothiazine ligands. These ligands are unique in that they contain a chiral sulfoximine. Several 2,1-benzothiazine ligands were prepared in single one-pot syntheses and others in as many as five or more steps for larger heterocycles. An optimized synthetic route will be shown for a very well known Buchwald Hartwig N-arylation of sulfoximines and haloarenes. The synthetic procedure for the N-arylation of sulfoximines synthetic procedure has virtually been unchanged since its introduction in 1998. The new synthesis herein has dramatically improved reaction time and scope for the N-arylation of aryl bromides and aryl chlorides. Until now, aryl chloride based N-arylations gave extremely poor conversions when attempted thermally. Lastly, unsubstituted and 4-phenyl substituted 2,1-benzothiazine lithiation reactivity will be discussed for the sulfoximine stabilized lithium vinyl carbanions. Mono- and di-substitutions are now synthetically possible. New synthetic strategies for accessing the ortho-S-phenyl ring as a viable carbanion will also be shown.
Title from PDF of title page (University of Missouri--Columbia, viewed on May 24, 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. Michael Harmata.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00Z3D scene description and construction using spatial referencing languageBlisard, Samuel N., 1976-https://hdl.handle.net/10355/102502022-09-27T15:49:57Z2010-01-01T00:00:00Z3D scene description and construction using spatial referencing language
Blisard, Samuel N., 1976-
It has long been a dream of science fiction to have a robot that can understand and communicate using the rich dialog of natural language. Having such capabilities would allow a human collaborator to interact naturally and efficiently with the robot. In this work, I investigate the use of 3D Spatial Referencing Language (SRL) using the Histogram of Forces (HoF) to facilitate better interactions between users and robots or other intelligent systems. SRL in this work is natural language that people use to describe their surrounding environment and includes spatial-relational prepositions such as left, behind, on top of, inside and near. I also compare the HoF spatial referencing tool to Regier and Carlson Attention Vector Sum (AVS)[1] and show that the HoF models human spatial behavior without the limitations of the AVS. A second investigation develops the 3D spatial relationships NEAR, INSIDE, ON TOP OF, and UNDERNEATH using data from a stereo vision system. A final set of investigations and experiments involve the creation of an architectural description language to create 3D models of real buildings, qualitative and quantitative metrics for evaluation, and a walkthrough using a virtual agent to describe the interiors of the constructed 3D model.
Title from PDF of title page (University of Missouri--Columbia, viewed on March 3, 2011).; 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. Marjorie Skubic.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00ZAbsences as causes : a defense of negative causationHartsock, Michael D., 1979-https://hdl.handle.net/10355/83272022-09-27T15:49:58Z2010-01-01T00:00:00ZAbsences as causes : a defense of negative causation
Hartsock, Michael D., 1979-
In this dissertation, I confront the issue of negative causation, (i.e., causation by or of absences). I investigate the causal status of absences with regard to particular philosophical concerns and argue that absences are very often causes and effects. On my analysis, it turns out that absences - at least those absences thought to be causally efficacious - are not metaphysical absences. They are perfectly ordinary entities, thus candidates for causal relata. Generally, I argue that the notion of an "absence" has been ill-understood and that this has been aggravated by focusing on sentences of the canonical form, "the absence of x caused y." Such a focus engenders the view that absences are capable of being causally efficacious only if there exists some entity, absence of x. If such a view were correct, then the case for absences as causes is a non-starter; there are no such entities. Instead, I recast the argument for negative causation as a vindication of our intuitive judgments that statements of the canonical and related forms are very often true and express genuine causal relations.
Title from PDF of title page (University of Missouri--Columbia, viewed on May 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: AndreĢ Ariew.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00ZAdaptation : re-creating the novel as a stage playKnight, Lania, 1968-https://hdl.handle.net/10355/83312022-09-27T15:49:59Z2010-01-01T00:00:00ZAdaptation : re-creating the novel as a stage play
Knight, Lania, 1968-
The critical introduction examines Linda Hutcheon's notion that the process of adaptation is worthy of observation, and that in analyzing a novelist adapting her own work for the stage, we begin to see how the interiority of characters can be externalized for the stage. First, I look at Norman Mailer's adaptation of his novel, The Deer Park, for the stage. Using Robert Breen's method of chamber theatre as a lens, I examine Mailer's stage directions and changes to dialogue. Next, I look at my own adaptation of my novel, Three Cubic Feet, into a stage play, The Lad Sketches. By adding a magical character and incorporating an object into the action of the play, among other changes and additions, I was able to externalize for the stage the inner lives of my novel's characters. I conclude that observing a novelist adapting her own work for the stage is particularly revealing of the process of adaptation and helpful to all adapters of fiction into stage plays. The second section is the text of my novel, Three Cubic Feet, and the third section is the text of my stage play, The Lad Sketches.
Title from PDF of title page (University of Missouri--Columbia, August 11, 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. Marly Swick.; Vita.; Ph. D. University of Missouri--Columbia 2010.
2010-01-01T00:00:00Z