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1,210 Matching Results
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Adult Survivors of Childhood Sexual Abuse : Characteristics of the Mother-child Relationship
This qualitative study examined the characteristics of the mother-child relationship of adult survivors of childhood sexual abuse at the time of the abuse. The study consisted of data from the McMaster Family Assessment Device (FAD), the Family of Origin Scale (FOS), and a set of structured interview questions designed by the researcher. Autonomy/intimacy concepts from the FOS examined constructs of clarity of expression, responsibility, respect, openness, acceptance of loss and separation, expression of a wide range of feelings, conflict resolution, mood and tone, and empathy.
Date:
December 1994
Creator:
Motley, Rebecca Roper
System:
The UNT Digital Library
Susceptibility to the Mueller-Lyer Illusion as a Function of Conflicts in Self Concept and the Characteristics of the Stimulus
While various studies have related susceptibility to the Mueller-Lyer illusion to mental health, to developmental maturity, and to self-differentiation, there have been no studies in which susceptibility to the illusion has been related to a wide spectrum of self-concept dimensions. It is one of the purposes of the present study to analyze susceptibility to the Mueller-Lyer illusion as a function of errors in self-perception. To the extent that an individual suffers conflicts with regard to his self-concept, in any of its significant dimensions, it is expected that he will suffer a greater susceptibility to the illusion.
Date:
January 1969
Creator:
Khan, Ehsan Ullah, 1933-
System:
The UNT Digital Library
Low-Velocity K-Shell Ionization Cross Sections for Protons, Deuterons and Alpha Particles Bombarding Thin Metal Targets
The purpose of this work was to examine the effect of the use the assumption κω2K/ΕCM «1 in calculating K-shell ionization cross sections in the plane wave Born approximation (PWBA) where κω2K is the observed binding energy of the K-shell and ECM is the energy of the incident particle in the center of mass system. Avoiding this assumption produces a threshold for ionization at Ecm = κω2K. Calculations employing the assumption, which leads to the use of approximate limits of integration, do not go to zero for even the .Lowest values of the incident energy.
Date:
May 1981
Creator:
Rice, Roger Karl
System:
The UNT Digital Library
Electrophysiological and Morphological Analyses of Mouse Spinal Cord Mini-Cultures Grown on Multimicroelectrode Plates
The electrophysiological and morphological properties of small networks of mammalian neurons were investigated with mouse spinal cord monolayer cultures of 2 mm diameter grown on multimicroelectrode plates (MMEPs). Such cultures were viewed microscopically and their activity simultaneously recorded from 2 of any 36 fixed recording sites. The specific aims achieved were: development of techniques for production of functional MMEPs and maintenance of mini-cultures, characterization of the spontaneous activity of mini-cultures, application of inhibitory and disinhibitory agents, development of staining methods for cultured neurons and initial light microscopic analysis with correlation of electrophysiological and morphological characteristics.
Date:
December 1988
Creator:
Hightower, Mary H. (Mary Helen)
System:
The UNT Digital Library
A Study of the Leadership Styles of the Chief Student Affairs Administrators in Southern Baptist Colleges and Universities
The problem with which this investigation was concerned was the level of knowledge about the leadership style of the chief student affairs administrators in Southern Baptist colleges and universities. The four purposes of the study were as follows: 1. To determine the prevalent leadership style of the chief student affairs administrators in Southern Baptist colleges and universities in terms of the Blake and Mouton Managerial Grid concept• 2. To determine if self-reported leadership style is congruent with the leadership style determination obtained through an instrument developed to analyze leadership style; 3. To determine if the following are factors in the leadership choice of the chief student affairs administrators in Southern Baptist colleges and universities: - Size and complexity of the institution. - Age. - Years of experience as a chief student affairs administrator. - Educational preparation, i.e. academic, administrative, or religious
Date:
August 1980
Creator:
Richardson, Dennie K.
System:
The UNT Digital Library
Biological Nitrogen Fixation in Two Southwestern Reservoirs
This investigation has determined the presence of biological nitrogen fixation in two reservoirs in the southwestern United States: Lake Arlington and Lake Ray Hubbard. Subsequent tests have gathered baseline data on the effects of various biological, chemical, and physical parameters on in situ nitrogen fixation in these reservoirs. Of specific importance is the relationship between nitrogen fixation arid occasional blooms of blue-green algae which produce such problems as testes and odors in these water-supply impoundments.
Date:
August 1973
Creator:
Lawley, Gary G.
System:
The UNT Digital Library
Self-Complexity and Physiological Responses to Facial Self-Reflection: An Investigation into Women's Self-Image
In this study, effects of facial self-reflection and complexity of self on physiological responses were investigated. Skin conductance levels were measured during baseline and neutral conditions, then under a self-focusing condition provided by mirror reflection of the face. Subjects completed measures of self-complexity, depressive affect, self-esteem, anxiety and body image satisfaction. Eye tracking data was collected during the mirror condition. Results showed a significant effect of mirror self-reflection on physiological reactivity as measured by differences between mirror and baseline mean responses. Pre-test depressive affect was correlated with low self-esteem but not with self-complexity. Self-complexity was negatively correlated with orientation to physical appearance and positively correlated with greater differences between baseline and mirror mean reactivity. Self-complexity and depressive affect did not significantly predict physiological reactivity, although a trend was found for the influence of each variable. Post-hoc analyses showed significant group differences for both self-complexity and depressive affect on physiological reactivity, although the influence of self-complexity was in the unexpected direction. Results of this study are consistent with general findings that negative self-esteem, anxiety and depression are strongly correlated. In addition, a strong correlation was found between negative self-esteem and dissociative symptoms. Exploratory analyses of eye tracking data found no significant …
Date:
December 1996
Creator:
Baldwin, Carol L. (Carol Louise)
System:
The UNT Digital Library
Perceptions of Faculty Development: A Study of a North Texas Community College
This dissertation study deems faculty development critical to meeting challenges associated with retirement, potential professor shortages, increasing adjunct populations, unprepared faculty, and accreditation standards in the community college. The study centers on seeking a current, in-depth understanding of faculty development at Metro Community College (a pseudonym). The participants in this qualitative study consisted of adjunct and full-time faculty members and administrators who communicated their perceptions of faculty development. The analysis discovered faculty member types (progressive and hobbyist adjunct and proactive, active, and reactive full-time faculty) who invest themselves in development differently depending on their position and inclination to participate. Faculty members generally indicated a desire for collegiality and collaboration, self-direction, and individualized approaches to development whereas administrators exhibited a greater interest in meeting accreditation standards and ensuring institutional recognition. The study also discovered a need to consider development initiatives for adjunct faculty members. The dissertation proposes an improved partnership between the adjunct and full-time faculty and the administration.
Date:
December 2008
Creator:
Bodily, Brett Hogan
System:
The UNT Digital Library
A Comparison of Cognitive Moral Development of Accounting Students at a Catholic University with Secular University Accounting Students
Previous research has shown that accountants may be inadequate moral reasoners. Concern over this trend caused the Treadway Commission (1987) and the Accounting Education Change Commission (1990) to call for greater integration of ethics into the student's training. Ponemon and Glazer (1990) found a difference in cognitive moral development (CMD) between accounting students at a public university and a private university with a liberal arts emphasis. This study expands Ponemon and Glazer's research by examining two liberal arts universities, one a private, secular institution and one a Catholic institution. The primary research question asks if Catholic university accounting students manifest greater CMD growth than secular university accounting students. Additionally, this study examines and compares the priority that accounting students from the different institutions place on ethical values versus economic values. It was expected that Catholic university accounting students would manifest both greater CMD growth and a greater concern for ethical values over economic values when compared with non-Catholic university accounting students. The study utilized a two-phase approach. In the first phase, an organizational study of two institutions was made to determine how each strives to integrate moral development into their accounting students' education. In the second phase, lower-division and senior …
Date:
April 1998
Creator:
Koeplin, John P. (John Peter)
System:
The UNT Digital Library
Infrared-Microwave Double Resonance Probing of the Population-Depopulation of Rotational States in the NO₂ and the SO₂ Molecules
A 10.6 ym C02 laser operating a power range S P 200 watts was used to pump some select vibrational transitions in the NO2 molecule while monitoring the rotational transitions (91/9—'100/10), (232f 22 ~~"*242,23> ' (402,38 "393,37) in the (0, 0, 0) vibrational level and the (8q,8—*"^1,7) rotational transition in the (0, 1, 0) vibrational level. These rotational transitions were monitored by microwave probing to determine how the population of states in the rotational manifolds were being altered by the laser. Coincidences between some components of the V3-V2 band of N02 and the C02 infrared laser lines in the 10 um region appeared to be responsible for the strong interaction between the continuous laser beams and the molecular states.
Date:
December 1982
Creator:
Khoobehi, Bahram
System:
The UNT Digital Library
Dna Profiling of Captive Roseate Spoonbill (Ajaia Ajaja) Populations As a Mechanism of Determining Lineage in Colonial Nesting Birds.
Roseate spoonbills are colonial nesting birds with breeding grounds extending from the United States Gulf coast to the pampas of Argentina. The U.S. population suffered a severe bottleneck from 1890 to 1920. The population's recovery was slow and partially credited to migrations from Mexican rookeries, but a gene pool reduction would be expected. Five polymorphic Spoonbill autosomal short tandem repeat (STR) loci [three (GAT)n, one (AAAG)n and one (GT)n] and one Z/W-linked microsatellite exhibiting sex-specific dimorphism were isolated and characterized. The Z/W-linked STR locus accurately confirmed the sex of each bird. Allelic profiles for 51 spoonbills obtained from Dallas (Texas), Fort Worth (Texas) and Sedgwick County (Kansas) zoos revealed a non-continuous distribution of allele frequencies, consistent with the effects of a population bottleneck. Allelic frequencies also differed significantly between the isolated zoo populations. Although extra-pair copulations were suspected and difficult to document, zoos commonly used observational studies of mating pairs to determine familial relationships among adults and offspring. STR parentage analysis of recorded family relationships excluded one or both parents in 10/25 cases studied and it was further possible to identify alternative likely parents in each case. Mistaken familial relationships quickly lead to the loss of genetic variability in captive …
Date:
May 2002
Creator:
Sawyer, Gregory M.
System:
The UNT Digital Library
Psychological Correlates of Anorexic and Bulimic Symptomatology
The purpose of this study was to examine the degree to which several psychological and personality variables relate to anorexic and bulimic symptomatology in female undergraduates. Past research investigating the relationship between such variables and eating disorders has been contradictory for several reasons, including lack of theoretical bases, discrepant criteria, or combination of anorexia and bulimia nervosa. Recent investigators have concluded that it is important to examine subdiagnostic levels of eating pathology, especially within a college population. Thus, the present investigation used a female undergraduate sample in determining the extent to which several psychological factors--obsessiveness, dependency, over-controlled hostility, assertiveness, perceived control, and self-esteem--account for anorexic and bulimic symptomatology. Regression analyses revealed that anorexic symptoms were best explained by obsessiveness and then two measures of dependency, emotional reliance on another and autonomy. Bulimic symptoms were related most strongly to lack of social self-confidence (a dependency measure) and obsessiveness. Clinical implications and directions for future research are addressed.
Date:
August 1997
Creator:
Rogers, Rebecca L. (Rebecca Lynn)
System:
The UNT Digital Library
A Comprehensive Model for the Rotational Spectra of Propyne CH₃CCH in the Ground and V₁₀=1,2,3,4,5 Vibrational States
The energy states of C₃ᵥ symmetric top polyatomic molecules were studied. Both classical and quantum mechanical methods have been used to introduce the energy states of polyatomic molecules. Also, it is shown that the vibration-rotation spectra of polyatomic molecules in the ground and excited vibrational states can be predicted by group theory. A comprehensive model for predicting rotational frequency components in various v₁₀ vibrational levels of propyne was developed by using perturbation theory and those results were compared with other formulas for C₃ᵥ symmetric top molecules. The v₁₀=1,2,3 and ground rotational spectra of propyne in the frequency range 17-70 GHz have been reassigned by using the derived comprehensive model. The v₁₀=3 and v₁₀=4 rotational spectra of propyne have been investigated in the 70 GHz, and 17 to 52 GHz regions, respectively, and these spectral components assigned using the comprehensive model. Molecular constants for these vibrationally excited states have been determined from more than 100 observed rotational transitions. From these experimentally observed components and a model based upon first principles for C₃ᵥ symmetry molecules, rotational constants have been expressed in a form which enables one to predict rotational components for vibrational levels for propyne up to v₁₀=5. This comprehensive model also …
Date:
December 1986
Creator:
Rhee, Won Myung
System:
The UNT Digital Library
An Immunological Study of Adults with Down Syndrome
The high susceptibility to infection in persons with Down Syndrome (DS) has led some investigators to explore the possibility of a defect in the immune system. Studies to date indicate no defect in humoral immunity suggesting that the defect might be in the cellular immune functions, but no specific defect has been found. Our investigation of the cellular immune system of adult DS patients was conducted by examining (1) the number and function of T-lymphocytes, (2) the phagocytic function of granulocytes, (3) the level of superoxide dismutase-1 (SOD-1) in leukocytes, and (4) the effects of SOD-1 on lymphocyte and granulocyte functions.
Date:
August 1983
Creator:
White, Olivia Masih
System:
The UNT Digital Library
Baptists and Racial and Ethnic Minorities in Texas
This study examines the relations of white Baptists with racial and ethnic minorities in Texas from the beginning of organized Baptist work in Texas in the mid-nineteenth century, through the United States Supreme Court decision in the Brown v. Topeka case in 1954, Emphasizing the role of attitudes in forming actions, it examines the ideas of various leaders of the chief Baptist bodies in Texas: the artist General Convention of Texas, the Baptist Missionary Association of Texas and the American Baptist Convention. The minorities included in the work are the Negroes, the Mexican-Americans, non-Anglo-Saxon Europeans, American Indians, Orientals, and Jews. Several factors tend to justify a study of this subject. First, there is the prominence of race relations in the nation which has aroused interest in the effect which race relations have had upon affairs in Texas, Second, the widespread changes which have taken place in Texas during, the last two decades suggest the feasibility of a study of that phenomenon, and the fact that many consider the race problem to be a moral and religious issue indicates the relevance of the churches' relationships to these changes. As the largest religious denomination in the state, the Baptists offer a viable …
Date:
December 1972
Creator:
McLeod, Joseph Alpha, 1921-
System:
The UNT Digital Library
Phagocytosis by Earthworm Coelomocytes : A Biomarker for Immunotoxicity of Hazardous Waste Site Soils
Several biomarkers (cell viability and phagocytosis) based on earthworm (Lumbricus terrestris) immune cells (coelomocytes), together with whole-worm mortality (LC/LD50's), were used to assess a bioremediation attempt to reduce pentachlorophenol (PCP) toxicity in a former wood processing hazardous waste site (HWS).
Date:
December 1997
Creator:
Giggleman, Marina A.
System:
The UNT Digital Library
Catalytic Calcination of Calcium Carbonate
The calcination of calcium carbonate in a cement or a lime kiln uses approximately two to four times the theoretical quantity of energy predicted from thermodynamic calculation depending upon the type of the kiln used (1.4 x 10^6 Btu/ton theoretical to 6 x 10^6 Btu/ton actual). The objective of this research was to attempt to reduce the energy required for the calcination by 1. decreasing the calcination temperature of calcium carbonate, and/or 2. increasing the rate of calcination at a specific temperature. Assuming a catalytic enhancement of 20 percent in the industrial applications, an energy savings of 300 million dollars annually in the United States could be reached in the cement and lime industries. Three classes of compounds to date have shown a positive catalytic effect on the calcination of calcium carbonate. These include alkali halides, phospho- and silico-molybdate complexes, and the fused carbonates system.
Date:
August 1985
Creator:
Safa, Ali Ibrahim, 1953-
System:
The UNT Digital Library
Comprehension of Prose: Strategies Affecting Good and Poor High School Readers
The problem of this study was to investigate how good and poor comprehenders utilize passage structure and task instructions to acquire information from a prose passage. To give a more detailed picture of what type of information processing occurred during reading, both verbatim and paraphrase items were used to assess comprehension.There were two strong but nonsignificant patterns in the data for task instructions. Poor readers were sensitive to both attribute and relation instructions. Good readers, however, were not affected by attribute instructions, but were sensitive to relation instructions. The results for good readers tentatively suggest that they encode attributes as a natural part of reading, but only encode relationships when they are specifically instructed to do so. Based on these results, three observations were made. First, good readers appear not to be easily affected by text organization, but poor readers may be aided in comprehension by slight improvements in the organization of the text. Second, all students need more assistance and practice in drawing inferences from the text. Third, written instructions may be a weak aid for increasing the comprehension of poor readers and may help good readers attend to information they would normally miss.
Date:
May 1980
Creator:
Doyle, Mary Jean
System:
The UNT Digital Library
An Exploratory Study of the Information Search Stage of the Consumer Decision Process: Based on Elderly Consumers' Selection of a New Housing Bundle
This dissertation deals with the decision-to-move process of elderly persons—from a marketer's perspective. The central problem addressed is the lack of empirical knowledge concerning the factors and influences associated with the information search process of elderly persons in making a residential move decision. The purpose was to investigate and understand the key factors and influences which are viewed as important by elderly individuals in their search for and use of information.
Date:
May 1993
Creator:
Judd, Vaughan C. (Vaughan Charles)
System:
The UNT Digital Library
Individual attachment styles and the correspondence/compensation hypotheses in relation to depression and depressive experiences.
Two hundred twenty individuals participated in the present study from a university population. The study examined the relationship among attachment styles to caregivers, relationship with God, depressive symptomology, and depressive experiences. Attachment theorists have suggested a connection between childhood attachment to caregivers and current attachment to God through the idea that individuals have "working models" that form how they interpret present relationships. For the most part, the results of the current study supported the idea of correspondence between attachment to caregiver and attachment to God. Individual attachment styles to caregivers matched their attachment style to God. However, when caregiver religiousness was included as a moderating variable, results supported the theory of combined compensation-correspondence for those with insecure attachments to caregivers. Individuals with insecure attachment to caregivers were more likely to compensate for their insecure attachment bonds through participation in religious activity, whereas their internal, private relationship with God corresponded with their previous insecure attachment bonds. Individuals with insecure attachment to caregivers were more likely to endorse symptoms of depression and report introjective, but not anaclitic, depressive experiences. With respect to attachment to God, introjective depressive experiences were positively related to both anxious and avoidant attachments, whereas, anaclitic depressive experiences were …
Date:
August 2008
Creator:
Hill, Mary Kathleen
System:
The UNT Digital Library
Grandparents Raising Grandchildren: A Model of Psychological Functioning
A sample of 203 grandparents, 103 of whom were surrogate parents for their grandchildren, were assessed to construct a model of their psychological functioning. Four measures of psychological functioning (i.e., well-being, satisfaction with grandparenting, meaning of grandparenthood, and perceived relationships with grandchildren) were evaluated. Path analysis of data suggested that the resumption of the parental role negatively impacted all measures except the meaning of grandparenthood. Data also suggested a sense of isolation among those raising grandchildren, as well as a sense of role confusion. These factors may have been exacerbated by behavior difficulties of many grandchildren as a result of family conflict preceding the loss of their parents, and by a lack of parenting skills of grandparents who assumed parental responsibilities. These results reinforce other work that found a preference for fulfilling voluntary, nonparental relationships with grandchildren among grandparents.
Date:
August 1990
Creator:
Shore, R. Jerald (Robert Jerald)
System:
The UNT Digital Library
The Effect on Marital Adjustment of Teaching Basic Marital Communication in a Conjoint Couples' Group Using Videotape Feedback
The purposes of this study were (1) to determine the immediate effects, if any, on marital adjustment of a marital enrichment program entitled Marital Skills Training. Program (MSTP); (2) to determine the residual effects, if any, on marital adjustment after MSTP had been terminated; and (3) to determine the differences, if any, in the effect on marital adjustment of an on-going group and extended session group using MSTP. Measures of marital communication and marital adjustment served as the dependent variables while the MSTP training served as the independent variable. Instruments used for data collection were the Marital Adjustment Test (Short Form), the Primary Communication Inventory, and the Semantic Differential. The study concluded that teaching marital communication skills in a conjoint couples' group in an on-going setting is an effective way to increase marital adjustment. However, the passage of time appears to be a necessary factor in integrating MSTP into behaviors which affect marital adjustment since the significant increase did not appear until five weeks following training and was found to exist only in the On-going training group.
Date:
May 1979
Creator:
Latham, Noreen V.
System:
The UNT Digital Library
Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz
The rotational microwave spectra of the three isotopes (^13CH_3^12C^15N, ^12CH_3^13C^15N, and ^13CH_3^13C^15N) of the methyl cyanide molecule in the v_8=3, v_8=2, v_7=1 and v_4=1 vibrational energy levels for the rotational components 1£J£5 (for a range of frequency 17-95 GHz.) were experimentally and theoretically examined. Rotational components in each vibration were measured to determine the mutual interactions in each vibration between any of the vibrational levels investigated. The method of isotopic substitution was employed for internal tuning of each vibrational level by single and double substitution of ^13C in the two sites of the molecule. It was found that relative frequencies within each vibration with respect to another vibration were shifted in a systematic way. The results given in this work were interpreted on the basis of these energy shifts. Large departure between experimentally measured and theoretically predicted frequency for the quantum sets (J, K=±l, ϑ=±1), Kϑ-l in the v_8=3 vibrational states for the ^13c and ^15N tagged isotopes of CH_3CN showed anomalous behavior which was explained as being due to Fermi resonance. Accidently strong resonances (ASR) were introduced to account for some departures which were not explained by Fermi resonance.
Date:
December 1990
Creator:
Al-Share, Mohammad A. (Mohammad Abdel)
System:
The UNT Digital Library
Resistance Exercise and Alcohol: Combined Effects on Physiology and Performance
Resistance exercise (RE) training is a well-known and effective method for promoting increases in muscle mass and strength. A single bout of RE induces physiological disturbances that require coordinated activation of the immune system and intramuscular signaling in order to return the tissue to homeostasis and adapt to the RE challenge. On the other hand, acute binge alcohol consumption can affect the immune response to an inflammatory challenge, intramuscular anabolic signaling, and muscle protein synthesis, and the effects of alcohol on these processes are opposite that of RE. Furthermore, individuals who report more frequent exercise also report a greater frequency of binge drinking. However, few investigations exist regarding the effects of binge alcohol consumed after a bout of RE on RE-induced physiological changes and performance recovery. Therefore, the overarching purpose of the investigations contained within this dissertation was to investigate the effect of alcohol consumed after RE on the RE-induced changes in mTOR pathway signaling, muscle protein synthesis, inflammatory capacity, strength recovery, and power recovery. Although RE increased mTOR pathway signaling and inflammatory capacity after exercise and reduced maximal strength and explosive power the day after exercise, we observed no effects of alcohol (1.09 g ethanol∙kg-1 lean body mass, designed …
Date:
August 2018
Creator:
Levitt, Danielle E.
System:
The UNT Digital Library