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737 Matching Results
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Evidentiary Value of Condoms: Comparison of Durable Physical and Chemical Characteristics of Condoms
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Condom trace evidence must not be overlooked in sexual assault cases; understanding the chemical and physical characteristics of condoms is imperative if condoms are to be useful evidence. Previous research shows that condom identification is possible, but it is equally important to evaluate durability of condom residues versus time. Using FT-IR, this study examined vaginal swabs from subjects who self-sampled at intervals for up to 72 hours after having intercourse with a condom. This study investigated whether age and the stage of the menstrual cycle affected the durability of residues in the vagina over time. This study revealed that condoms containing nonoxynol-9, silicone-based lubricants, and particulates provide valuable information for identification, and that nonoxynol-9 specifically withstands the vaginal environment for up to 72 hours. Additionally, age and menstrual cycle both appeared to have an effect on the durability of residues although larger sample size is desirable.
Date:
May 2000
Creator:
Belcher, Kelly Leigh
System:
The UNT Digital Library
The Evolution of Form
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A craftsman’s work evolves with time, new forms arise and old forms become more refined. This research attempts to study the evolution of pots over a designated period of time. The key findings include that the approach to glazing was relatively unchanged by the evolution in the work. However,the refinements that occurred in the work allowed the glazes to impart wonderful characteristics to the forms on which they are used.
Date:
May 2000
Creator:
Dotter, David D.
System:
The UNT Digital Library
Exogenous Influences and Paths To Activism
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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.
Date:
May 2000
Creator:
Ray, Grady Dale
System:
The UNT Digital Library
Growing carbon nanotubes by chemical vapor deposition technique.
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Carbon nanotubes were synthesized in the laboratory using chemical vapor deposition at different methane concentration. I found that a methane concentration of 4 sccm was ideal for well recognizable carbon nanotubes. A higher concentration led to fewer nanotube growth and silicon carbide structure. Coating the sample first with Fe(NO3)3 created a catalyst base on the substrate for the nanotube to adhere and grow on.
Date:
May 2000
Creator:
Rajan, Harihar V.
System:
The UNT Digital Library
Gunther Schuller and John Swallow: Collaboration, Composition, and Performance Practice in Eine Kleine Posaunenmusik, with Three Recitals of Selected Works by Berio, Bogle, Gregson, Pryor, Suderburg and Others
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Gunther Schuller is credited with coining the term Third Stream, meaning compositions where twentieth-century art music forms exist simultaneously with jazz. Furthermore, Schuller specifically states in the liner notes to the debut recording of Eine Kleine Posaunenmusik "The work is not a Third Stream piece." Yet the concerto alludes to jazz through a multitude of slide glissandi and plunger mute effects, Solotone mute passages, specific references to the jazz trombone styles of Tommy Dorsey and Lawrence Brown, musical quoting or indirect reference, and the use of a walking bass line in Movement V, Finale. What makes one piece Third Stream and another simply a modern composition with jazz implications? Is Third Stream primarily a compositional designation or a performance practice stipulation? How does a celebrated trombone soloist inspire and collaborate with a distinguished composer in the creation of a major work? The somewhat conspicuous title, Eine Kleine Posaunenmusik, seems to point towards Mozart's famous string serenade Eine Kleine Nachtmusik. What connection to Mozart, if any, does Schuller's title suggest? All of these questions are elucidated in this study through careful investigation and research of Gunther Schuller's Eine Kleine Posaunenmusik. New interviews with John Swallow and Gunther Schuller are included.
Date:
May 2000
Creator:
Bogle, James Michael
System:
The UNT Digital Library
Humor and Nursing Home Residents
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Although humor is a generally accepted part of everyday life for humans, its existence, importance, and positive influence on older persons are often underestimated. The purposes of this study are to determine whether humor is a normal experience for nursing home residents, enhancing their activities of daily living, and whether it plays a role in contributing to their psychological well-being. The study includes a discussion of research on humor, particularly as it relates to the elderly and the aging process; analysis and comparisons based on interviews with residents on the subject of humor and review of their psychological state as evaluated by the MDS 2.0 nursing facility assessment; individual case studies, and anecdotes illustrating the beneficial contributions humor brings to the lives of nursing home residents.
Date:
May 2000
Creator:
Cecil, David P.
System:
The UNT Digital Library
The Impact of the Balanced Budget Act of 1997 on the Home Health Benefit
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Widespread concern about the rapid growth of Medicare spending in recent years initiated a legislative response that resulted in the Balanced Budget Act of 1997. The effects of the BBA were far reaching and created shock waves throughout the health care industry. This study presents background information on the history of the Medicare home health benefit, enumerates specific provisions and goals of the BBA of 1997, examines how the BBA has changed the delivery of Medicare home health services, and proposes survival strategies for home health care providers.
Date:
May 2000
Creator:
Coker, Joseph E.
System:
The UNT Digital Library
I. Korean address and reference terms between married men and women; II. Metaphorical extension in Korean compound verbs
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I. This study attempts to investigate the address and reference terms between Korean husbands and wives in different situations by means of the questionnaire. In addition to the results by the questionnaire, questions relating to gender, age, culture and society were partially answered through out this survey. II. This study attempts to analyze metaphorical extension of Korean compound verbs. The patterns found in Korean compound verbs are similar to the work of Abby and Chelliah. That is secondary verbs in the construction of compound verbs which have two sequential verbs have bleached meanings in the processes of grammaticalization.
Date:
May 2000
Creator:
Seo, Eun-Jeong
System:
The UNT Digital Library
Long-Term Care Administrator Licensure and Certification: An Emerging Health Profession
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The long-term care administrator profession is one that is both new and evolving. The unique historical perspective of this health profession is brief in the number of years it encompasses and crucial in understanding the current issues facing the profession. Administrator experiences provide a point of reference regarding the profession's structural problems. Ethical considerations play a dynamic role in administrators' daily jobs as well as their continued licensure. The significance of the profession's ongoing problems at the state and national level causes the need for alternatives to the current system. A combination of these alternatives must be embraced to assist in the recruitment and retention of long-term care administrators.
Date:
May 2000
Creator:
Syverson, Thomas
System:
The UNT Digital Library
The Lower Rio Grande Valley: Are Education and Job Training Opportunities Shrinking the Labor Force?
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The purpose of this research project is to examine the educational and job-training opportunities offered in the Lower Rio Grande Valley, and how the skills acquired from these programs assimilate with the job opportunities available in the area. Specifically, we will look at the counties of Cameron, Hidalgo, Starr, and Willacy. The central hypothesis of this project is that the Rio Grande Valley in its efforts for a more highly trained workforce may actually be enabling its workforce to seek better employment opportunities in other areas.
Date:
May 2000
Creator:
Foster, Jodie Randall
System:
The UNT Digital Library
Macroinvertebrate Community Structure as an Indicator of Watershed Health in the Upper Trinity River Basin, North Central Texas
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This study describes macroinvertebrate community structure and assesses its potential in detecting point and non-point sources of disturbance associated with rural and urban areas in the Upper Trinity River Basin. Geospatial techniques were used to quantify landuse within the watershed in a GIS. At rural sites near the headwaters of the Trinity River, collector-gathering burrowers that are adapted to minimal flow comprised the majority of taxa. Destinies of taxa compositions at downstream sites increased and shifted toward psammophilic and rheophilic invertebrates, including primarily collector-filtering clingers, that are characteristic of shifting sand habitats in large prairie rivers. Benthic community structure generally benefited from point source impacts including wastewater treatment plant effluents that maintained higher flow. Community indices were negatively associated with forest landuse and positively associated with urban landuse. Partial CCA determined that flow and landuse contributed equally to species dispersions. Comparisons with historical biomonitoring studies in upper Trinity River Basin indicate improved watershed health.
Date:
May 2000
Creator:
Stephenson, Jaynie M.
System:
The UNT Digital Library
The Meaning of Elder Abuse
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Elder abuse first received national attention in 1980, as the subject of a congressional investigation. Now, 20 years later, establishing successful strategies of identification, subsequent intervention, and prevention of abuse is of paramount importance; but progress toward this goal is hindered by lack of consensus as to the definition of elder abuse, and the use of vague, confusing, and sometimes contradictory terms in its discussion. In this paper, both social research and professional approaches and legal approaches to the definition of elder abuse are surveyed, as are definitions formulated for the National Elder Abuse Incidence Study conducted by the National Center on Elder Abuse. The continuing need for a universal or standard definition is emphasized.
Date:
May 2000
Creator:
Achilli, Raye
System:
The UNT Digital Library
Microstructure and Electronic Structures of Er-Doped Si Nano-particles Synthesized by Vapor Phase Pyrolysis
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Si nanoparticles are new prospective optoelectronic materials. Unlike bulk Si cry-stals, Si nanoparticles display intriguing room-temperature photoluminescence. A major challenge in the fabrication of Si nanoparticles is the control of their size distribution. The rare-earth element Er has unique photo emission properties, including low pumping power, and a temperature independent, sharp spectrum. The emission wavelength matches the transmission window of optical fibers used in the telecommunications industry. Therefore, the study of Er-doped Si nanoparticles may have practical significance. The goals of the research described in this dissertation are to investigate vapor phase pyrolysis methods and to characterize the microstructure and associated defects, particles size distributions and photoluminescence efficiencies of doped and undoped Si nanoparticles using analytical transmission electron microscopy, high resolution electron microscopy, and optical spectroscopy. Er-doped and undoped Si nanoparticles were synthesized via vapor-phase pyrolysis of disilane at Texas Christian University. To achieve monodisperse size distributions, a process with fast nucleation and slow growth was employed. Disilane was diluted to 0.48% with helium. A horizontal pyrolysis oven was maintained at a temperature of 1000 °C. The oven length was varied from 1.5 cm to 6.0 cm to investigate the influence of oven length on the properties of the nanoparticles. …
Date:
May 2000
Creator:
Chen, Yandong
System:
The UNT Digital Library
An Online Academic Support Model for Students Enrolled in Internet-Based Classes
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This doctoral dissertation describes a research study that examined the effectiveness of an experimental Supplemental Instruction (SI) program that utilized computer-mediated communication (CMC) rather than traditional SI review sessions. During the Spring 1999 semester, six sections of an introductory computer course were offered via the Internet by a suburban community college district in Texas. Using Campbell and Stanley's Nonequivalent Control Group model, the online SI program was randomly assigned to four of the course sections with the two remaining sections serving as the control group. The students hired to lead the online review sessions participated in the traditional SI training programs at their colleges, and received training conducted by the researcher related to their roles as online discussion moderators. Following recommendations from Congos and Schoeps, the internal validity of the groups was confirmed by conducting independent t-tests comparing the students' cumulative credit hours, grade point averages, college entrance test scores, and first exam scores. The study's four null hypotheses were tested using multiple linear regression equations with alpha levels set at .01. Results indicated that the SI participants earned better course grades even though they had acquired fewer academic credits and had, on average, scored lower on their first course …
Date:
May 2000
Creator:
Rockefeller, Debra J.
System:
The UNT Digital Library
Parents' Beliefs and Knowledge Regarding Child Development and Appropriate Early Childhood Classroom Practices
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The intent of this study was to assess low-income parents knowledge and beliefs regarding child development and appropriate classroom practice and to compare their responses with those obtained from a previous survey of upper-income parents (Grebe, 1998). This study group (N=21) consisted of parents or guardians with children in a federally subsidized child-care center. Results indicated a high level of knowledge regarding developmentally appropriate practice and child development. Overall, there were no significant differences in the knowledge between the two income-levels, however, responses to several questions revealed slight differences in beliefs.
Date:
May 2000
Creator:
Hughes, Tina M.
System:
The UNT Digital Library
Playing Jaques in As You Like It
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Abstract not available
Date:
May 2000
Creator:
Thomas, Chad
System:
The UNT Digital Library
Playing Jonah's Hand: Poems
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Playing Jonah's Hand: Poems is a collection of poems with a critical introduction. The introduction consists of two independent essays, both of which examine intersections between poetry and Christian theology. In the first essay I identify the imaginative faculty as the primary source of agency for the speaker in John Donne's "Holy Sonnets." Working upon Barbara Lewalski's assertion that these sonnets represent "the Protestant paradigm of salvation in its stark, dramatic, Pauline terms," I consider the role of the imagination in the spiritual transformation represented within the sequence. Donne foregrounds a Calvinistic theology that posits both humanity's total depravity and God's grace and mercy as the only avenue of transcendence. Whatever agency the speaker exhibits is generated by the exercise of his imagination, which leads him to a recognition of his sinfulness and the necessity of God's grace. In the second essay I investigate the presence of a negative theology within "Lachrimae, or Seven Tears Figured in Seven Passionate Pavans," a sonnet sequence by Geoffrey Hill. In this sequence, Hill demonstrates the possibilities that surface through an integration of negative theology with postmodern theories of language, both of which have been influenced by the philosophical writings of Martin Heidegger. The …
Date:
May 2000
Creator:
Dyer, Gregory A.
System:
The UNT Digital Library
The Reformation-Era Church Courts of England: A Study of the Acta of the Archidiaconal and Consistory Court at Chester, 1540-1542
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Much work has been done over the last fifty years in the study of the English ecclesiastical courts. One court that thus far has escaped much significant scholarly attention, however, is the one located in Chester, England. The author analyzes the acta of that court in order to determine what types of cases were being heard during the years 1540-42. His analysis shows that the Chester court did not deviate significantly from the general legal and theological structure and function of Tudor church courts of the period.
Date:
May 2000
Creator:
Mitchener, Donald Keith
System:
The UNT Digital Library
Resident Profile and Considerations for the Development of a Strategic Plan
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The graying of America will have implications for all areas of society, especially the delivery of long-term care services. Many older individuals are aging in place, a phenomenon that is apparent at Dickinson Place, a church-sponsored low-income housing property for the elderly in Dallas, Texas, where the average age of residents has risen from 65 in the early 1970s to 78 in 1999. This change has prompted the board of directors to review the facility's mission, its physical plant, and the services it provides for strategic planning purposes, to ensure that Dickinson Place can continue to meet the needs of its residents both now and in the future.
Date:
May 2000
Creator:
Burgos, Dalila
System:
The UNT Digital Library
Scanning Tunneling Microscopy of Homo-Epitaxial Chemical Vapor Deposited Diamond (100) Films
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Atomic resolution images of hot-tungsten filament chemical-vapor-deposition (CVD) grown epitaxial diamond (100) films obtained in ultrahigh vacuum (UHV) with a scanning tunneling microscope (STM) are reported. A (2x1) dimer surface reconstruction and amorphous atomic regions were observed on the hydrogen terminated (100) surface. The (2x1) unit cell was measured to be 0.51"0.01 x 0.25"0.01 nm2. The amorphous regions were identified as amorphous carbon. After CVD growth, the surface of the epitaxial films was amorphous at the atomic scale. After 2 minutes of exposure to atomic hydrogen at 30 Torr and the sample temperature at 500° C, the surface was observed to consist of amorphous regions and (2x1) dimer reconstructed regions. After 5 minutes of exposure to atomic hydrogen, the surface was observed to consist mostly of (2x1) dimer reconstructed regions. These observations support a recent model for CVD diamond growth that is based on an amorphous carbon layer that is etched or converted to diamond by atomic hydrogen. With further exposure to atomic hydrogen at 500° C, etch pits were observed in the shape of inverted pyramids with {111} oriented sides. The temperature dependence of atomic hydrogen etching of the diamond (100) surface was also investigated using UHV STM, and …
Date:
May 2000
Creator:
Stallcup, Richard E.
System:
The UNT Digital Library
Sorry Guard
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Sorry Guard is a collection of poems with a critical introduction on poetic form. Form in poetry can be revealed vocally (how the poem sounds), temporally (how the poem makes use of time), and spatially (how the poem is visualized, both physically on the page due to typography and imagistically due to the shape and movement of its subject matter). In this preface, I will address these three aspects of form in relation to three distinct twentieth century poets: Robert Hass, W.S. Merwin, and W.H. Auden. I am most interested in how particular formal decisions shape meaning and value in poetry. My aesthetic approach here primarily dwells on what Helen Vendler calls, "the music of what happens." The urgency of Robert Hass's spoken word is important to me because I wish to make poems that should be spoken aloud and remembered. While W.S. Merwin's rejection of punctuation is not my own aesthetic outlook, I strive to achieve through close attention to temporal form the mythic voice of his poemsthe immediacy of his lines and images, especially in his second four books. And Auden's deft use of spatial form is only a small aspect of his remarkable verse. All three poets …
Date:
May 2000
Creator:
Poch, John
System:
The UNT Digital Library
A Study of Graphically Chosen Features for Representation of TREC Topic-Document Sets
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Document representation is important for computer-based text processing. Good document representations must include at least the most salient concepts of the document. Documents exist in a multidimensional space that difficult the identification of what concepts to include. A current problem is to measure the effectiveness of the different strategies that have been proposed to accomplish this task. As a contribution towards this goal, this dissertation studied the visual inter-document relationship in a dimensionally reduced space. The same treatment was done on full text and on three document representations. Two of the representations were based on the assumption that the salient features in a document set follow the chi-distribution in the whole document set. The third document representation identified features through a novel method. A Coefficient of Variability was calculated by normalizing the Cartesian distance of the discriminating value in the relevant and the non-relevant document subsets. Also, the local dictionary method was used. Cosine similarity values measured the inter-document distance in the information space and formed a matrix to serve as input to the Multi-Dimensional Scale (MDS) procedure. A Precision-Recall procedure was averaged across all treatments to statistically compare them. Treatments were not found to be statistically the same and …
Date:
May 2000
Creator:
Oyarce, Guillermo Alfredo
System:
The UNT Digital Library
Teamwork in the Nursing Home: The Art of Caring for Long-Term Care Residents
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The effects of teamwork in a long-term care setting were explored, and four key elements of teamwork in the long-term care facility were discovered. These elements--clarity of purpose, clear communication, well-defined decision-making procedures, and participative leadership--are presented in detail. The literature reviewed as well as observations from personal participation in a case study show that employing the teamwork concept in a nursing home environment significantly enhances the quality of life for the residents of such facilities.
Date:
May 2000
Creator:
Saxon, Juliane M.
System:
The UNT Digital Library
Tuberculosis in the Nursing Home: A Policy and Procedure Manual
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Tuberculosis in the nursing home is an ever-growing problem for the health care community. The incidence of tuberculosis in the United States has risen alarmingly since 1982, and high-population environments such as nursing homes are among the places where it is most prevalent. The first part of this document is an introduction to the current concerns faced by nursing home infection control personnel. It includes information about the history, symptoms, and epidemiology of the disease, as well as other topics. The second part is a policy and procedure manual that contains a basic guide to methodical testing for tuberculosis, steps for dealing with active cases of the disease, and suggestions for education of nursing home health care workers.
Date:
May 2000
Creator:
Mounts, Camilla M.
System:
The UNT Digital Library