UNT Libraries - 27,646 Matching Results

Search Results

prev Results: 13711 - 13734 next
open access

An Investigation of Methods for the Concentration of Chemical Compounds Produced by Actinomycetes and Their Relation to Tastes and Odors in Municipal Water Supplies

Description: It is the purpose of this investigation to improve upon techniques to enhance the taste of municipal water and attempt to devise one that could desorb the compounds from carbon in an unaltered state. It was decided that the odor character would be the criterion used to decide if the eluted compounds were the same as those in the raw water.
Date: 1957
Creator: Brown, Jerry H.
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Mexican Gravesites in Nuevo Laredo, Mexico and Laredo, Texas

Description: My work already shared some of the characteristics of the gravesites that I proposed to study. They were similar in that they both attempted to integrate sacred and profane imagery. Both called attention to personal events and related these events to a larger scheme. Finally, both were involved with the creation of objects of veneration according to personal edicts, but in relation to already established mythologies. I proposed to create a body of work based on the information gathered from th… more
Date: May 1990
Creator: Ludwig, Lisa M.
Item Type: Refine your search to only Thesis or Dissertation
open access

The Investigation of Molded Units for Assembled Sculptures

Description: The problem being dealt with concerns the investigation of the conceptual and expressive potential of mold-formed units in combination with other media and processes. The questions under consideration are as follows: 1. Do the concepts of pieces vary with the materials and process being used? How? 2. What alterations occur in the visual image as a result of the change in media and processes? 3. What mechanical and technical problems are involved in the mold-formed process?
Date: August 1980
Creator: Wood, Lynda Kay
Item Type: Refine your search to only Thesis or Dissertation

An Investigation of Multiple Articulation as Applied to Saxophone Literature and Its Performance: An Historical and Pedagogical Approach

Description: Multiple articulation is a technique that is becoming commonplace in the saxophone literature. This study provides a detailed explanation of how produce the technique. Its application to saxophone literature is explored with musical examples and commentary by the author. A compilation of pedagogical viewpoints regarding multiple articulation from educators spanning the last century is provided.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2019
Creator: Reséndez, Joey (José Luís)
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Music Teacher Preparation in Selected United Negro College Fund Colleges and Universities

Description: The problem of this study was to determine the perceptions of music educators at selected United Negro College Fund colleges and universities concerning the importance of music teaching competencies and courses for prospective public school music teachers, it was further designed to (a) determine if the music educators were in agreement with the published competency recommendations of the National Association of Schools of Music and the Music Educators National Conference for preparing prospect… more
Date: December 1981
Creator: Claybon, Sibyl Elaine Carr
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Naturally Occurring Tastes and Odors from Fresh Waters

Description: The Problem of the cause and control of tastes and odors in water supplies has been the subject of a great many investigations during the last half-century; however, many questions in this field remain to be answered. Theories relating to the cause of tastes and odors occurring in water are still rather numerous and, at present, only a few of them are compatible. Although several procedures have been employed for the eradication of tastes and odors from water supplies, none of them are complete… more
Date: May 1955
Creator: Pipes, Wesley O'Feral, Jr.
Item Type: Refine your search to only Thesis or Dissertation
open access

Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis

Description: In this research, electrochemical methods are used to synthesize the inorganic fraction of bone, hydroxyapatite, for application in biological implants and as a calibration material for elemental analysis in human bone. Optimal conditions of electrochemically deposited uniform apatite coatings on stainless steel were investigated. Apatite is a ceramic with many different phases and compositions that have beneficial characteristics for biomedical applications. Of those phases hydroxyapatite (… more
Date: December 2012
Creator: DeLeon, Vallerie H.
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Organizational Communication and Its Relationship to Two Organizational Models Involving Job Performance and Job Satisfaction

Description: The correlates of organizational communication to other organizational constructs have been scarcely researched. Two constructs of interest to management researchers and practitioners are job performance and job satisfaction. This interest arises from the fact that the quality of organizational life and effectiveness may be determined by the quality of the two constructs. This study investigates the moderating influence of organizational communication on two models involving the variables of pe… more
Date: August 1985
Creator: Goris, Jose R. (Jose Rafael)
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Paramedical Vocational Interest and Choice for Men of Color in Texas Community Colleges

Description: Although the recent annual growth rate in the US paramedic field has been 4%, Latino and African American men have been significantly underrepresented in the field compared to their proportion in the US population at large. This problem threatens both the quality and quantity of available emergency health care. The purpose of this study was to describe how men of color (MOC) in community college paramedical programs experienced their awareness, interest, and proactive choice of paramedicine a… more
Date: May 2018
Creator: Lineros, Jose Victor
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Perception of a Frequency Modulated Band Location of Pitch Within a Musical Vibrato

Description: The purpose of this study was to investigate aspects of pitch perception of auditors when presented with musical tones whose frequencies were modulated. Research problems were: estimation of the effect of musical training upon pitch perception; estimation of the effect of stimuli of differing tonal qualities and frequency ranges upon perception; and estimation of the effect of solo and ensemble performances upon pitch perception. Subjects for the study were thirty musicians and thirty nonmusici… more
Date: May 1986
Creator: Brown, Steven Franklin
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Personal Investment Levels Among Nonmusic Major Piano Students Using Portfolio Assessment

Description: The purpose of this study was to compare personal investment levels among nonmusic major piano students in the contexts of portfolio and teacher-directed assessment. Three problems were addressed: 1) identifying students' perceptions of direction, persistence, continuing motivation, intensity, and performance in the context of teacher-directed goal setting, choice of instructional activities, and evaluation of performance; 2) identifying students' perceptions of the five personal investment beh… more
Date: May 1998
Creator: Heisler, Paul K.
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Personality Characteristics of Bulimic Women Late Adolescent Through Adult Ages in the Dallas/Fort Worth Metroplex

Description: The incidence of bulimia seems to be increasing dramatically as actors, models, dancers, and college populations are seeking help for this eating disorder. In this study, the Adjective Checklist was administered to 21 bulimic women and 17 normal women to compare personality characteristics on the following scales: abasement, affiliation, autonomy, achievement, aggression, personal adjustment, succorance, and self-control. Results showed bulimic women scored higher on abasement and succorance. A… more
Date: December 1983
Creator: Trevino, Ana Maria
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Plant Fibers for Basketry

Description: The problem of investigating the adaptability of plant fibers for basketry was two-fold. The first part was the selection and preparation of the plants. Suitable collection time, drying methods, and processing and soaking procedures were determined through a series of experiments, performed during each season of the year. In the second part experimental samples were woven by using the basic basketry techniques to illustrate the usability and versatility of each plant fiber. The survey of forty … more
Date: August 1977
Creator: Smith, Virginia Sue M.
Item Type: Refine your search to only Thesis or Dissertation

Investigation of Porous Ceramic Structure by Freeze-Casting

Description: The design and fabrication of porous ceramic materials with anisotropic properties has, in recent years, gained popularity due to their potential application in various areas that include medical, energy, defense, space, and aerospace. Freeze-casting is an effective, low-cost, and safe method as a wet shaping technique to create these structures. To control the morphology of these materials, many critical factors were found to play an important role. In this dissertation, the processing paramet… more
Date: May 2021
Creator: Bakkar, Said Adnan
Item Type: Refine your search to only Thesis or Dissertation
open access

Investigation of Post-Plasma Etch Fluorocarbon Residue Characterization, Removal and Plasma-Induced Low-K Damage for Advanced Interconnect Applications

Description: Modern three-dimensional integrated circuit design is rapidly evolving to more complex architecture. With continuous downscaling of devices, there is a pressing need for metrology tool development for rapid but efficient process and material characterization. In this dissertation work, application of a novel multiple internal reflection infrared spectroscopy metrology is discussed in various semiconductor fabrication process development. Firstly, chemical bonding structure of thin fluorocarbon … more
Date: May 2016
Creator: Mukherjee, Tamal
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Preservice Teachers' Understanding of Buoyancy

Description: The purpose of this study was to examine the conceptual understandings of 55 elementary preservice teachers for the concept of buoyancy. This study used Ausubel’s Assimilation Theory (Ausubel, 1963) as a framework for a 15-week intervention that used pre/post concept maps (Cmaps), pre/post face-to-face semi-structured interviews, and drawings as evidences for change of formation of cognitive structures. Using a convergent parallel design and mixed methods approach, preservice teachers’ concepti… more
Date: May 2016
Creator: Kirby, Benjamin S.
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Principal's Leadership Behavior as Perceived by Secondary School Principals and Teachers in Nakorn Pathom, Thailand

Description: This study sought to investigate the secondary school principal's leadership behavior as perceived by secondary school teachers and principals in Nakorn Pathom, Thailand. The study had two purposes: to determine whether significant differences existed between teachers' perceptions of principal leadership behavior based on the variables of sex, years of teaching experience, educational level, and size of school; and to determine whether significant differences existed between the perceptions of … more
Date: August 1980
Creator: Sukhabanij, Sariya
Item Type: Refine your search to only Thesis or Dissertation
open access

An investigation of prior learning assessment processes in Texas public universities offering nontraditional baccalaureate degrees.

Description: Undergraduate enrollment in colleges and universities has grown and changed drastically over the past 2 decades, with a significant portion of this growth coming from the increased number of nontraditional students who have made the decision to make their way onto college and university campuses to pursue a college degree. Due to these changes, many institutions of higher education have had to rethink the way they have historically operated. In an attempt to better meet the needs and demands of… more
Date: May 2006
Creator: Freed, Rusty
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Psychopathy in a Female Jail Sample: a Study of Convergent and Discriminant Validity

Description: The present study was designed to assess both the construct of psychopathy in a female jail sample as well as the quality of the measures that have been employed to assess this personality style. Utilizing the multitrait-multimethod matrix proposed by Campbell and Fiske (1959), the construct of psychopathy was measured via three instruments: (a) the Antisocial Scale of the Personality Assessment Inventory, (b) the Psychopathy Checklist - Revised, and (c) the Antisocial Scale of the Personality … more
Date: May 1996
Creator: Salekin, Randall T. (Randall Todd)
Item Type: Refine your search to only Thesis or Dissertation
open access

An Investigation of Psychophysical Color Phenomena and their Application to Interior Design

Description: The purpose of this study is to analyze and select those psycho-physical color phenomena adaptable to interior design. Among these are phenomena relating to variations in intensity and purity, visual stimulation, spatial relationships, and psychological factors; this study contains suggestions for possible application of these phenomena to strengthen the quality of interior environments.
Date: August 1970
Creator: Robinson, Donald I.
Item Type: Refine your search to only Thesis or Dissertation
open access

Investigation of Pyrimidine Salvage Pathways to Categorize Indigenous Soil Bacteria of Agricultural and Medical Importance and Analysis of the Pyrimidine Biosynthetic Pathway's Enzyme Properties for Correlating Cell Morphology to Function in All Phases of Growth

Description: This dissertation comprises three parts and is presented in two chapters. Chapter 1 concerns Arthrobacter, a bacterium with an intriguing growth cycle. Whereas most bacteria exist as either a rod or coccus, this bacterium shares the rod/coccus lifestyle. It therefore seemed important to examine the growth regulatory pathways from the rod and coccus. The committed step, that catalyzed by aspartate transcarbamoylase (ATCase), in the pyrimidine biosynthetic pathway was chosen. The ATCase in Arthr… more
Date: May 2003
Creator: Meixner, Jeffery Andrew
Item Type: Refine your search to only Thesis or Dissertation
Back to Top of Screen