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536 Matching Results
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Differences in Mother and Father Perceptions, Interactions and Responses to Intervention with a Special-needs Adoptive Child.
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Use of this item is restricted to the UNT Community
Parents' perceptions of their child's behavior may differ for mothers and fathers. Differences in parental perception may also be apparent in cases of special needs adoptive families with high demands of their child for time, interventions and attention. This paper examines the differences in mother-child and father-child interactions, child behavior as reported by mothers, and fathers and changes in both after participation in an intervention program. Results suggest notable differences between mothers' and fathers' parent-child interaction scores and reports of child behavior. In addition, interaction scores and behavior reports showed some correlations. Finally, there seemed to be notable differences in the trends for the Child Behavior Checklist compared to the two attachment measures (Randolph Attachment Disorder Questionnaire and Beech Brook Attachment Disorder Checklist). Several possible explanations for mother and father differences are discussed.
Date:
August 2004
Creator:
Meland, Angela M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Dissolved Organic Carbon Assessment on Selected Creeks and Rivers within the Elmfork Subwatersheds of Denton, Texas
The primary focus of the study was to compare dissolved organic carbon (DOC) at baseline stream flow to DOC at a higher post-rain stream flow, with a secondary focus on comparison of DOC between sites. Comparisons were also done on suspended solids at baseline flow to those of the higher post-rain flow, as well as suspended solids between sites. Significant differences did exist between DOC sampled at baseline flow and DOC in samples taken at peak flow. The study found no difference in suspended solids among sites neither on either baseflow sampling nor on the post rain event sampling.
Date:
May 2004
Creator:
Jackson, Pamela J.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
"Distance" and Other Stories
"Distance" and Other Stories is a collection of four short stories and a novella that explore the themes of isolation and personal revelation. The dissertation opens with a preface which describes my background as a writer and the forces that shape my work, including science fiction, technology and the internet, cultural marginalization, and Joseph Campbell's hero's motif.
Date:
August 2004
Creator:
Drummond-Mathews, Angela
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Distorted Traditions: the Use of the Grotesque in the Short Fiction of Eudora Welty, Carson Mccullers, Flannery O'connor, and Bobbie Ann Mason.
This dissertation argues that the four writers named above use the grotesque to illustrate the increasingly peculiar consequences of the assault of modernity on traditional Southern culture. The basic conflict between the views of Bakhtin and Kayser provides the foundation for defining the grotesque herein, and Geoffrey Harpham's concept of "margins" helps to define interior and exterior areas for the discussion. Chapter 1 lays a foundation for why the South is different from other regions of America, emphasizing the influences of Anglo-Saxon culture and traditions brought to these shores by the English gentlemen who settled the earliest tidewater colonies as well as the later influx of Scots-Irish immigrants (the Celtic-Southern thesis) who settled the Piedmont and mountain regions. This chapter also notes that part of the South's peculiarity derives from the cultural conflicts inherent between these two groups. Chapters 2 through 5 analyze selected short fiction from each of these respective authors and offer readings that explain how the grotesque relates to the drastic social changes taking place over the half-century represented by these authors. Chapter 6 offers an evaluation of how and why such traditions might be preserved. The overall argument suggests that traditional Southern culture grows out of …
Date:
August 2004
Creator:
Marion, Carol A.v
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Does Natural Resource Wealth Spoil and Corrupt Governments? A New Test of the Resource Curse Thesis
Countries with rich natural resource endowments suffer from lower economic growth and various other ills. This work tests whether the resource curse also extends to the quality of regulation and the level of corruption. A theoretical framework is developed that informs the specification of interactive random effects models. A cross-national panel data set is used to estimate these models. Due to multicollinearity, only an effect of metals and ores exports on corruption can be discerned. Marginal effects computations show that whether nature corrupts or not crucially depends on a country's institutions. A broad tax base and high levels of education appear to serve as inoculations for countries against the side-effects of mineral wealth.
Date:
August 2004
Creator:
Petrovsky, Nicolai
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Domestic Influences for Interstate Cooperation: Do Domestic Conditions Affect the Occurrence of Cooperative Events in Democratic Regimes?
This research addressed two main issues that have become evident in studies of interstate cooperation. The first issue has to do with the relationship between cooperation and conflict. Can they be represented on a single, uni-dimensional continuum, or are they better represented by two theoretically and empirically separable dimensions? Granger causality tests were able to clarify the nature of cooperative events. The second issue is related to factors that might facilitate or discourage cooperation with other countries as a foreign policy tool. Factors used to explain cooperation and conflict include domestic variables, which have not been fully accounted for in previous empirical analyses. It is hypothesized that economic variables, such as inflation rates, GDP, and manufacturing production indices affect the likelihood of cooperative event occurrences. The effect of political dynamics, such as electoral cycles, support rates and national capability status, can also affect the possibility of cooperative foreign policies. The domestic factors in panel data was tested with Feasible Generalized Least Square (FGLS) in order to take care of heteroscedasticity and autocorrelations in residuals. The individual case analysis used linear time series analysis.
Date:
August 2004
Creator:
Yi, Seong-Woo
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Domestic Violence Study for Counselor Education Masters Students
The issue of domestic violence continues to be of great concern to society. It is crucial counselors have an understanding of dynamics of domestic violence and the impact it has on victims. Even with heightened awareness of the past decade, the issue continues to be misunderstood, missed altogether by counselors, and sometimes misdiagnosed. This study was created to explore the level of understanding masters level counseling students have of domestic violence, battering behavior, victimization, socioeconomic preconceptions, and counseling victims. Masters level counseling students from the University of North Texas, Denton, TX and staff members of two battered women's shelters from the Dallas, TX area participated in a survey to identify the level of knowing and sensitivity to the issue of domestic violence. Upon completion, an independent t-test was conducted to measure differences in these areas between the two groups. Results indicate a need for counseling students to better understand this issue and implications for client/victims.
Date:
December 2004
Creator:
Beechler, Judith
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Economic Impact of Hospitals: the Case of Baylor Regional Medical Center at Grapevine.
This report analyzes the economic impacts of the Baylor Regional Medical Center at Grapevine, Texas. The economic impacts are analyzed using the IMPLAN impact modeling system developed by the Minnesota IMPLAN Group. The analysis evaluates construction activities by Baylor-Grapevine as well as procurement spending and employment. Additionally, the impact of ancillary facilities surrounding Baylor-Grapevine and the impact of patient visitor spending is also reviewed. Total recurring impacts of procurement spending at Baylor-Grapevine, employment at Baylor-Grapevine and its ancillary facilities, and visitor spending will generate over $227 million in economic activity for the Dallas/Fort Worth Metroplex. This activity will support more than 3,300 direct, indirect, and induced jobs paying over $138 million in annual earnings.
Date:
August 2004
Creator:
Graves, Jennifer M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effect of Amines as Corrosion Inhibitors for a Low Carbon Steel in Power Industry
Commonly used amines in power industry, including morpholine, DBU (1,8-diazabicyclo[5.4.0]undec-7-ene), and DMA (dimethylallylamine) were evaluated for their effect on AISI 1018 steel at 250oF. Samples were exposed to an autoclave containing amine added aqueous solution at pH of 9.5 for 1, 2, 4, 6, 8, and 12 hours. Morphology studies were carried using scanning electron microscope (SEM), phase analysis was done utilizing Fourier transform infrared spectroscopy (FTIR), and weight loss was performed to assess kinetics of oxidation. Control samples showed the highest metal dissolution rate. DBU showed the best performance in metal protection and SEM indicated the presence of a free-crack layer formed by fine particles in that set. FTIR showed that DBU apparently favored the formation of magnetite. It is believed that fine particles impede intrusion of aggressive ions into the metal surface by forming a barrier layer. FTIR demonstrated that DMA formed more oxyhydroxides, whereas morpholine presented magnetite to hematite transformation as early as 2 hours. SEM revealed that control and DMA produced acicular particles characteristic of oxyhydroxides while morpholine and DBU presented more equiaxed particles.
Date:
December 2004
Creator:
Díaz, Jorge G.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Breastfeeding Education on Breastfeeding Initiation Rates Among Teenage Mothers
Access:
Use of this item is restricted to the UNT Community
The purpose of this study was to examine the effect of a breastfeeding education program on breastfeeding initiation rates, breastfeeding knowledge, and attitude towards breastfeeding among teenage mothers at an urban school for pregnant and parenting teens. Breastfeeding initiation rose from 35.7% in the control group to 85.2% in the treatment group. The mean score on the Breastfeeding Knowledge Subscale was significantly higher for the treatment group but not the control group. There was not a significant increase in mean scores on the Breastfeeding Attitude Subscale. Participants who initiated breastfeeding scored also had a significant increase in scores from pretest to posttest on the Breastfeeding Knowledge Subscale, while participants who did not initiate breastfeeding did not.
Date:
May 2004
Creator:
Brown, Amber L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effect of Chronic Alcohol Abuse and Resistance Training on the Skeletal Muscle Androgen Receptor Concentration of Rats
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Use of this item is restricted to the UNT Community
The purpose was to examine the effect of chronic alcohol abuse on the androgen receptor content (AR) in skeletal muscle, and to determine if this effect was influenced by resistance training. Thirty-four male rats (456 ± 1 g; mean ± SE) were divided into 4 groups: Sham exercise-Ethanol, Sham exercise-Normal diet, Exercise-Ethanol, and Exercise-Normal diet. Both Exercise groups underwent a 6-week "squat" resistance training protocol and both Ethanol groups received an alcohol-rich diet throughout the 6-week period. Western blot analysis showed no effect of alcohol or resistance training on the AR of the extensor digitorum longus. For the rectus femoris, alcohol caused a decline in the AR (p=0.01). This reduction was not attenuated by resistance training. The AR of the soleus was not affected by chronic alcohol abuse alone; however, the resistance training induced increase in the AR was prevented by chronic alcohol abuse (p=0.03).
Date:
August 2004
Creator:
Vingren, Jakob L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Individual Versus Collective Creative Problem Solving Experiences on Fourth- and Fifth-grade Students' Compositional Products.
The purpose of the study was to explore the effects that individual vs. collective structured creative musical problem solving tasks had on students' compositional products. Subjects in a convenience sample of 32 fourth-graders and 32 fifth-graders were randomly assigned to either the individual or collective condition. The 3 treatment sessions were characterized by an open-ended creative problem solving task, which included questions intended to guide subjects through 3 stages of the creative problem solving process: Understanding the Problem, Generating Ideas, and Planning for Action. Subjects participated in the pre- and posttest individually. Three experienced music educators assessed the compositional products in terms of pattern use, cohesiveness, and creativity. The originally intended MANCOVAs could not be carried out because the data did not meet the necessary assumptions. Pretest and posttest scores were explored with individual ANOVAs. The Bonferroni technique was used to adjust the alpha level. The statistical analyses showed that subjects exposed to the individual condition obtained higher scores than subjects exposed to the collective condition on six of the eight explored subtests, but these differences were not significant. The level of interjudge reliability decreased at each of the three measurements of the study: pilot test, pretest, and posttest. The …
Date:
December 2004
Creator:
Aguilar, Beatriz E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Information Literacy Instruction on Library Anxiety Among International Students
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Use of this item is restricted to the UNT Community
This study explored what effect information literacy instruction (ILI) may have on both a generalized anxiety state and library anxiety specifically. The population studied was international students using resources in a community college. Library anxiety among international students begins with certain barriers that cause anxiety (i.e., language/communication barriers, adjusting to a new education/library system and general cultural adjustments). Library Anxiety is common among college students and is characterized by feelings of negative emotions including, ruminations, tension, fear and mental disorganization (Jiao & Onwuegbuzie, 1999a). This often occurs when a student contemplates conducting research in a library and is due to any number of perceived inabilities about using the library. In order for students to become successful in their information seeking behavior this anxiety needs to be reduced. The study used two groups of international students enrolled in the English for Speakers of other Languages (ESOL) program taking credit courses. Each student completed Bostick's Library Anxiety Scale (LAS) and Spielberger's State-Trait Anxiety Inventory (STAI) to assess anxiety level before and after treatment. Subjects were given a research assignment that required them to use library resources. Treatment: Group 1 (experimental group) attended several library instruction classes (the instruction used Kuhltau's information search …
Date:
May 2004
Creator:
Battle, Joel C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Response Preclusion on Stereotypy and Play in a Child with Autism.
This study investigates the effectiveness of response preclusion on stereotypic behavior (climbing and licking) and on play for a child with autism. Data were collected on stereotypic responses, play behavior, and the types of play materials the participant contacted. Implementation of response preclusion was followed by both a decrease in stereotypic behavior as well as an increase in play behavior. Play behavior did not return to baseline levels of responding during reversals to baseline, and stereotypic behavior decreased across reversals. These results suggest the current antecedent manipulation not only reduces stereotypic behavior, but also can establish an environment that is more conducive to learning new, desired behavior.
Date:
December 2004
Creator:
Delgado, Veronica
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effect of Silyation on Organosilcate Glass Films
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Use of this item is restricted to the UNT Community
Photoresist stripping with oxygen plasma ashing destroys the functional groups in organosilicate glass films and induce moisture uptake, causing low-k dielectric degradation. In this study, hexamethyldisilazane (HMDS), triethylchlorosilane and tripropylchlorosilane are used to repair the damage to organosilicate glass by the O2 plasma ashing process. The optimization of the surface functionalization of the organosilicate glass by the silanes and the thermal stability of the functionalized surfaces are investigated. These experimental results show that HMDS is a promising technique to repair the damage to OSG during the photoresist removal processing and that the heat treatment of the functionalized surfaces causes degradation of the silanes deteriorating the hydrophobicity of the films.
Date:
August 2004
Creator:
Kadam, Poonam
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Child-Centered Play Therapy and Curriculum-Based Small-Group Guidance on the Behaviors of Children Referred for Aggression in an Elementary School Setting
The purpose of this study was to determine the effectiveness of child-centered play therapy and curriculum-based small-group guidance on the behaviors of aggressive children in an elementary school as determined by (a) the reduction of aggressive behaviors, (b) the decrease in internalizing problems, and (c) the decrease in externalizing problems of aggressive children. Two types of behavioral instruments, the Behavioral Assessment System for Children-Teacher Rating Scale/Parent Rating Scale and the Child Behavior Checklist-Caregiver/Teacher Report Form, were used to provide multiple measures of the same construct in this matched pretest-posttest comparison group experimental designed study. Qualitative data was also collected. The population studied was comprised of 37 volunteer children identified as aggressive in kindergarten through fourth grade, ages 5-12, who qualified for counseling services at a Title I public elementary school in North Texas . Children who were referred by teachers and parents, and met the required criteria, were matched in pairs on grade level and randomly assigned to one of the two real-world setting interventions; play therapy treatment group (n=20), which received 12-15 individual child-centered play therapy sessions, or the curriculum-based small-group guidance group (n=17), consisting of 12-19 lessons. Major strengths of the study included utilizing students referred for counseling …
Date:
December 2004
Creator:
Schumann, Brandy R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Culturally Responsive Child-centered Play Therapy Compared to Curriculum-based Small Group Counseling with Elementary-age Hispanic Children Experiencing Externalizing and Internalizing Behavior Problems: a Preliminary Study.
This study was designed to determine the effectiveness of culturally responsive child-centered play therapy when compared to a curriculum-based small group counseling intervention as a school-based intervention for Hispanic children experiencing behavioral problems that place them at risk for academic failure. Specifically, this study measured the effects of the experimental play therapy treatment, compared to Kids' Connection, on reducing Externalizing and Internalizing behavior problems of elementary school-age Hispanic children. Twenty-nine volunteer Hispanic children were randomized to the experimental group (n=15) or the comparison group (n=14). Subjects participated in a weekly 30 minute intervention for a period of 15 weeks. Pre- and posttest data were collected from parent and teachers using the Behavior Assessment Scale for Children (BASC). A two factor mixed repeated measures analysis of variance was computed for each hypothesis, to determine the statistical and practical significance of the difference in the pretest to posttest behavior scores of children in the two groups. According to parents' reports, the children receiving play therapy showed statistically significant decreases in externalizing behaviors problems, specifically conduct problems, and moderate improvements in their internalizing behavior problems, specifically anxiety. Teacher BASC results showed no statistical significance and negligible-to- small practical significance between the two groups …
Date:
December 2004
Creator:
Garza, Yvonne
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Descriptive Praise on Instructional Control Over Varied and Stereotyped Play of a Five-Year-Old Boy
This study investigated the effects of instructional cues on varied and stereotyped play responses of one typically developing 5-year-old child. Responses were observed across four sets of play materials: blocks, DUPLO® blocks, markers and paints. Training included praise contingent upon forms consistent with the instruction. Two instructions were each trained with corresponding instruction signs, "Try something different" (on blue paper) and "Do the same thing" (on yellow paper) for block and DUPLO block forms. Results show differentiated novel responding during the experimental phase. The same differential effect in marker forms occurred in the sign alone phase. When the sign plus instruction was introduced for painting sessions, novel forms in the same condition discontinued and began to occur in the different condition. These findings suggest stimulus control of behavioral variation and behavioral consistency. The implications for both science and society are discussed.
Date:
December 2004
Creator:
Bank, Nicole L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Methanol, Atrazine, and Copper on the Ultrastructure of Pseudokirchneriella Subcapitata (Selenastrum Capricornutum).
The toxicity of methanol, atrazine, and copper to Pseudokirchneriella subcapitata (Korshikov) Hindák historically referred to as Selenastrum capricornutum Printz were determined following 96 hrs growth in a modified Goram's growth media. Methanol and atrazine inhibited fluorescence readings in the cultures by 50% (IC50) at concentrations of 2% and 82 µg/l respectively. These toxicity values compared favorably to other published reports. The IC50 for copper was 160 µg/l which is substantially higher than reported values. This is understandable because of the high chelating capacity of Goram's media. The use of stereologically derived relative volume in the chloroplasts, mitochondria, lipid bodies, phosphate bodies, and nucleus was investigated to determine if it could be used as a sensitive endpoint in toxicity tests. The volume fractions for the chloroplasts and mitochondria were normally distributed in control cells while the nuclei, phosphate bodies, and lipid bodies were not. The chloroplasts were the most dominate organelle occupying a mean relative volume of 46% and mitochondria occupied a mean relative volume of 3%. The nucleus and phosphate bodies occupied a median relative volume of 7% and 2% respectively. The lipid bodies were rare in section profile and no meaningful median relative volume could be calculated. Up to …
Date:
May 2004
Creator:
Garrett, David C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Multicultural College Courses on Intercultural Experiences and Attitudes.
This study examined college undergraduates' intercultural experiences and attitudes at the beginning and the end of a semester-long course on multicultural issues. Participants were 290 undergraduate college students at the University of North Texas , 202 of whom were enrolled in one of the university's core global studies, cross-cultural, or diversity courses for the fall 2001 semester, and 88 of whom were enrolled in courses outside the core. It was hypothesized that the multicultural group's Positive Inventory of the Consequences of Multicultural Experiences scores would increase and Social Dominance Orientation Scale scores would decrease more than they would for the control group. Findings did not support these hypotheses.
Date:
December 2004
Creator:
Soule, Amy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Parent Training on the Amount and Variety of Food Consumed By a Child with Autism.
Access:
Use of this item is restricted to the UNT Community
The current study assessed the effectiveness of a training package, delivered in the form of a manual, to teach a parent to increase the variety and amount of food consumed by her son. The participant was a 5-year-old boy with Pervasive Developmental Disorder and limited food consumption. A changing criterion design across two variables, variety of food and quantity of food, was used. Results were that the parent who used the manual, with limited assistance from the experimenter, did succeed in increasing food variety and quantity of target foods.
Date:
May 2004
Creator:
VanKirk, Tessa Schreiber
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Perceived Locus of Control and Dispositional Optimism on Chronic Pain Treatment Outcomes.
The financial cost for health care and lost productivity due to chronic pain has been estimated at over $70 billion per year. Researchers have attempted to discover the psychosocial and personality factors that discriminate between people who learn to cope well with chronic pain and those who have difficulty adjusting. The purpose of the present study was to examine the effects of perceived locus of control and dispositional optimism on chronic pain treatment outcomes. Subjects reported significantly lower post-treatment pain levels as compared with pre-treatment levels (M = 0.66, SD = 1.58), t(45) = 2.85, p = .007 (two-tailed), but decreased pain was not associated with scores on the internality dimension of the Pain Locus of Control Scale (PLOC) or on the Life Orientation Test-Revised (LOT-R) (a measure of dispositional optimism). Overall, participants' increased coping ability was associated with scores on the LOT-R, but not with scores on the internality dimension of the PLOC. Subjects with the lowest pre-treatment scores on the LOT-R demonstrated significantly greater increases in post-treatment coping ability than those with the highest scores (F(2,40) = 3.93, p < .03). Participants with the highest pre-treatment scores on both the PLOC internality dimension and the LOT-R demonstrated greater …
Date:
December 2004
Creator:
Worsham, Scott L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Prompting and Fading Procedures to Establish Following the Line of Regard in A Child with Autism
Children with autism show deficits in communication skills, including joint attention, a component of which is following the line of regard. Two experiments were conducted. The first experiment examined how prompting and fading procedures effected following the line of regard in a child with autism. The second experiment examined this effect on the child's learning the names of novel objects. One 10-year-old boy, with a primary diagnosis of autism, participated. A changing criterion design was used in Experiment I. Experiment II used a succession of interventions to assess incidental learning of novel object names. Results indicate that prompting and fading with reinforcement was an effective training procedure for teaching this child to follow the line of regard. However, this skill did not automatically lead to the child's learning the names of novel objects.
Date:
December 2004
Creator:
Horr, Amy C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Rate Contingent Consequences and Charting on Response Rates for Two Children with Autism.
This study investigated the effects of a precision teaching package on response rates of children with autism. Prior to both experiments a preference assessment was conducted to identify high preference activities for each participant. Experiment 1 investigated whether response rates would shift as a function of rate-contingent consequences during an academic task. Different activities were associated with different rates of responding. The experimental package of 1 minute timings, rate contingent consequences, and charting was successful in increasing the rates of responding when the most highly preferred activity was associated with high rates of responding. When the contingencies were switched and the most highly preferred activity was contingent on lower rates of responding, the participant's responding did not decrease. Experiment 2 was an attempt to replicate the results of Experiment 1 using a multiple baseline across tasks. The experimental package was not successful in increasing the rate of responding.
Date:
May 2004
Creator:
Berman, Christine M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library