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Existence of a Sign-Changing Solution to a Superlinear Dirichlet Problem

Description: We study the existence, multiplicity, and nodal structure of solutions to a superlinear elliptic boundary value problem. Under specific hypotheses on the superlinearity, we show that there exist at least three nontrivial solutions. A pair of solutions are of one sign (positive and negative respectively), and the third solution changes sign exactly once. Our technique is variational, i.e., we study the critical points of the associated action functional to find solutions. First, we define a codimension 1 submanifold of a Sobolev space . This submanifold contains all weak solutions to our problem, and in our case, weak solutions are also classical solutions. We find nontrivial solutions which are local minimizers of our action functional restricted to various subsets of this submanifold. Additionally, if nondegenerate, the one-sign solutions are of Morse index 1 and the sign-changing solution has Morse index 2. We also establish that the action level of the sign-changing solution is bounded below by the sum of the two lesser levels of the one-sign solutions. Our results extend and complement the findings of Z. Q. Wang ([W]). We include a small sample of earlier works in the general area of superlinear elliptic boundary value problems.
Date: August 1995
Creator: Neuberger, John M. (John Michael)

Existence of an Alpha One-Adrenoceptor-Mediated Coronary Vasoconstrictor Reflex During Acute Systemic Hypoxia, in Anesthetized, Open-Chest Dogs

Description: The presence of an alpha-adrenoceptor--mediated coronary vasoconstrictor reflex during acute systemic hypoxia was examined in thirteen chloralose-anesthetized dogs. Local vasodilator effects were avoided by perfusing the left common coronary artery (LCC) with normoxic blood, while the dogs were ventilated with 5% 02-95% N2 . Left ventricular afterload was held constant and positive cardiac inotropic responses and beta two-adrenoceptor-mediated coronary vasodilation were blocked by propranolol. Parasympatheticmediated bradycardia and coronary vasodilation were blocked with atropine. Systemic hypoxia decreased LCC flow to normoxic myocardium by 19.4+2.6 %. Although myocardial oxygen extraction increased 9.7+2.9 %, myocardial oxygen consumption decreased 16.5+2.6 %. Intracoronary prazosin prevented the reflex vasoconstriction during repeated hypoxia.
Date: December 1987
Creator: Grice, Derald Preston

An Existence Theorem for an Integral Equation

Description: The principal theorem of this thesis is a theorem by Peano on the existence of a solution to a certain integral equation. The two primary notions underlying this theorem are uniform convergence and equi-continuity. Theorems related to these two topics are proved in Chapter II. In Chapter III we state and prove a classical existence and uniqueness theorem for an integral equation. In Chapter IV we consider the approximation on certain functions by means of elementary expressions involving "bent line" functions. The last chapter, Chapter V, is the proof of the theorem by Peano mentioned above. Also included in this chapter is an example in which the integral equation has more than one solution. The first chapter sets forth basic definitions and theorems with which the reader should be acquainted.
Date: May 1985
Creator: Hunt, Cynthia Young

The Existential Concepts of Time, Death and Choice in the Poetry of Philip Larkin

Description: This thesis examines time, death, and choice in Philip Larkin's poetry, arguing that his approach to these themes is not deterministic, but existential. The argument is based on the similarity between Larkin's views and those of three existential philosophers. Larkin's view of time, like Heidegger's, is that men live not in long stretches of time, but in processions of unconnected yet similar moments. A constant underlying sadness, like Kierkegaard's despair, makes each moment reminiscent of death. Like Sartre, Larkin finds meaning in his choices, and struggles to live authentically without expectation. Although Thomas Hardy influenced Larkin, given these similarities, Larkin's poetry cannot rightly be called deterministic. It is an attempt to preserve experience for its own sake.
Date: December 1982
Creator: Paule, Elizabeth Emily

The Existential Predicament as Theme in the Novels of Alberto Moravia

Description: The phrase "existential predicament" is a summary of Moravia's preoccupation as a novelist. In his fiction there is constant, unrelenting obsession with the situation of a single, particular character confronting, through his own existence in a physical, historical setting, the forces or powers of negation which threaten him with the frightening personal awareness of the possibility, even inevitability, of his own dissolution into nothingness.
Date: August 1965
Creator: Young, Gene Herman

Existentialism and Darwinism in The French Lieutenant's Woman

Description: Existentialism and Darwinism provide a means of viewing the development of personal freedom in a young English gentleman, Charles Smithson. Guided by Sarah Woodruff, a social outcast, Charles approaches freedom through the existential conditions of terror, anguish, and despair; he encounters alienation, human finitude, and the loss of a relationship with God on the way. The realization of his trapped state is aided by the Darwinian analogy present in the novel: the monied leisure class to which Charles belongs is presented as the species approaching extinction because it fails to make the changes necessary to survive changed conditions. The novel's two endings combine existential and Darwinian elements to present to Charles the choice that can help him escape his trapped state and gain freedom.
Date: August 1977
Creator: Lee, Cynthia Bullock

Exogenous Influences and Paths To Activism

Description: The focus of this research was to ascertain the indirect effects upon activism of intervening variables and recognized exogenous influences upon activism. In addition, this research also focused upon the differences and similarities of a recruited activist model and spontaneous activist model. Regression and path analysis were used to measure the direct and indirect effects of the exogenous and intervening variables. This research found that when the intervening variables, political interest, political awareness, exposure to media, altruism, and self-interest were introduced to both the recruited and spontaneous models, the direct effects of the variables were enhanced.
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Date: May 2000
Creator: Ray, Grady Dale

Exon/Intron Discrimination Using the Finite Induction Pattern Matching Technique

Description: DNA sequence analysis involves precise discrimination of two of the sequence's most important components: exons and introns. Exons encode the proteins that are responsible for almost all the functions in a living organism. Introns interrupt the sequence coding for a protein and must be removed from primary RNA transcripts before translation to protein can occur. A pattern recognition technique called Finite Induction (FI) is utilized to study the language of exons and introns. FI is especially suited for analyzing and classifying large amounts of data representing sequences of interest. It requires no biological information and employs no statistical functions. Finite Induction is applied to the exon and intron components of DNA by building a collection of rules based upon what it finds in the sequences it examines. It then attempts to match the known rule patterns with new rules formed as a result of analyzing a new sequence. A high number of matches predict a probable close relationship between the two sequences; a low number of matches signifies a large amount of difference between the two. This research demonstrates FI to be a viable tool for measurement when known patterns are available for the formation of rule sets.
Date: December 1997
Creator: Taylor, Pamela A., 1941-

Exoprotease Production by Aeromonas hydrophila in a Chemically Defined Medium

Description: Wretlind, Heden, and Wadstrom found ammonium sulfate to be inhibitory for the formation of extracellular protease in Aeromonas hydrophila grown in Brain Heart Infusion medium. They demonstrated by manipulating the iron and zinc content within their medium that it is possible to differentially affect the accumulation of hemolysin and protease by A. hydrophila grown in batch culture. Further manipulation of the composition of this medium was done in the present study to determine the effect of other components on the production of protease. The purpose of this study was to determine the factors affecting the level of A. hydrophila protease produced in a chemically defined medium.
Date: May 1985
Creator: Anderson, Paulette S. (Paulette Sue), 1952-

Exotic Femininity: Prostitution Reviews and the Sexual Stereotyping of Asian Women

Description: Studies on prostitution have typically focused on the experiences, problems, and histories of prostitutes, rather than examining men who seek to purchase sex. Race has also been overlooked as a central factor in shaping the sex industry and the motivations of men who seek to purchase sex. This study utilizes online reviews of prostitutes to examine the way men who purchase sex discuss Asian prostitutes in comparison to White prostitutes. This paper traces the history of colonialism and ideas of the exotic Orient to modern stereotypes of Asian women. These stereotypes are then used to frame a quantitative and qualitative analysis of online reviews of prostitutes and compare the ways in which Asian prostitutes and white prostitutes are discussed. Further, the reviews are used to examine more broadly what services, traits, and behaviors are considered desirable by men who use prostitutes. The study finds that there are significant quantitative and qualitative differences in how men discuss Asian and White prostitutes within their reviews, and that these differences appear to be shaped by racially fetishizing stereotypes of Asian women. Prostitution also appears to reinforce male dominance and patriarchy in the form of masculine control and the feminine servicing of male sexual and emotional needs.
Date: December 2014
Creator: Dougherty, Devyn T.

Expanded Perceptions of Identity in Benjamin Britten's Nocturne, Op. 60

Description: A concentrated reading of Benjamin Britten's Nocturne through details of the composer's biography can lead to new perspectives on the composer's identity. The method employed broadens current understandings of Britten's personality and its relationship to the music. After creating a context for this kind of work within Britten scholarship, each chapter explores a specific aspect of Britten's identity through the individual songs of the Nocturne. Chapter 2 focuses on how Britten used genres in a pastoral style to create his own British identity. Chapter 3 concentrates on the complex relationship between Britten's homosexuality and his pacifism. Chapter 4 aims to achieve a deeper understanding of Britten's idealization of innocence. The various aspects of Britten's personality are related to one another in the Conclusion.
Date: May 2008
Creator: Perkins, Anna Grace

Expanding the Notion of Campus Climate: the Effect of Religion and Spirituality on the Perception of Campus Climate

Description: Religion/spirituality is a salient facet of identity for many college students, yet addressing issues related to spirituality/religion is contentious in many higher education institutions. Prior research has shown that various other facets of identity, including race/ethnicity, gender, and sexual orientation, affect a student’s perception of campus climate, but religious/spiritual identity has not been examined in the same manner. Using confirmatory factor analysis and structural equation modeling, this study empirically tests the addition of religion/spirituality to the campus climate theory developed by Hurtado et al. (1999). Data came from the 2010 College Senior Survey administered by the Higher Education Research Institute at the University of California, Los Angeles. Results indicate that religious and spiritual identity have significant direct effects on the perception and other aspects of campus climate. Future research is needed to extend the understanding between religious and spiritual identity and the perception of campus climate.
Date: August 2015
Creator: Herrera, Christina M.

Expanding the Numerical Control Version of Computer Graphics to Include Automatically Computed Machine Feeds and Speeds

Description: The objective of the study is to utilize the cross-sectional computation capabilities of a computer to calculate the revolutions per minute, to determine the volume of metal being removed by the machine cutter at any point in the programmed path, and to output the feed rate that the particular situation requires. The six chapters which present the information are as follows: Chapter I, introduction; Chapter II, analysis of factors affecting the computation of speed and feed rate parameters; Chapter III, organization of the input by the numerical control programmer; Chapter IV, modifications to the computer software; Chapter V, evaluation of the benefits of utilizing computed speed and feed rates; Chapter VI, summary, findings, conclusions, and recommendations.
Date: August 1979
Creator: Berry, Ronny E.

Expanding the Search for Digital Preservation Solutions [Poster]

Description: Poster presented at the 2009 ACM/IEEE-CS Joint Conference on Digital Libraries. The poster provides some preliminary results on factors that affect the adoption of PREMIS (Preservation Metadata Implementation Strategies) in cultural heritage institutions.
Date: 2009
Creator: Alemneh, Daniel Gelaw
Item Type: Poster

The Expansion of a Retail Chain: An Analysis of Wal-Mart Locations in the United States

Description: Retail geography is an expanding field that is becoming increasingly important within academia, the business environment, and the national and global economy. The focus of this study is to provide insight and additional understanding of the site selection processes employed by Wal-Mart in the United States. The research studies Wal-Mart from a national perspective and investigates the patterns of retail store expansion across the United States from 1990 to 2005. The study employs the use of a continuous Poisson model to check for significant clustering, and a single and multiple correlation analysis to identify the types of relationships that exist between retail stores and location. The results of the study make apparent several distinct patterns of retail store dispersion within the United States between the years 1990 to 2005.
Date: May 2011
Creator: Ostrander, Anthony P.

Expansion of Musical Styles, Function of Texture, and Performing Techniques in Brian Lock's Sonic Archaeologies No. 1

Description: British composer Brian Lock merges the composition styles of Alexander Goehr, Henryk Górecki and Witold Lutoslawski in his innovative works for instrumental sounds and electronics. His most recent work for flute, Sonic Archaeologies No.1, was premiered at the University of North Texas by Mary Karen Clardy, flute; Brian Lock, piano/electric keyboard; and Daniel Pardo, laptop/live mixing. The purpose of this dissertation is to provide flutists with artistic and technical guidance in preparing this work for flute, prerecorded orchestra, interactive electronics and improvisatory accompaniment. Sonic Archaeologies No. 1, a piece in five movements (Black Rain, Psychomania, Kodo, Susperia, and Deep in the Machine), incorporates contemporary techniques to create sounds other than the Western concert flute, with the use of live reinforcement devices such as microphones and time-based audio effects within a D.A.W. (Digital Audio Workstation.) Reggae, Hip-Hop and cinematic styles are juxtaposed within the work, fusing current genres with traditional rhythmic forms like the ones found in a bourrée. As the solo instrument, flute provides more textural than melodic elements, and the performer is required to interact with an unpredictable sonic soundscape as a result of the improvisatory element of the keyboards and computer. The notation of Sonic Archaeologies No.1 invites interpretation blending and altering traditional sounds through microphones and a processed signal flow. The performance guide will address acoustical considerations when the flute sound is being manipulated by dynamic and time-based processors in live performance; the interaction between the flute, electronics and acoustic spaces; the elements of sound production that provide interpretation of contemporary popular styles; and the opportunities for the performer to find, explore and develop artistry beyond the limitations of music notation.
Date: May 2016
Creator: Pardo, Daniel A