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Circumfusion: a Composition for Real-Time Computer Music Spatialization System

Circumfusion: a Composition for Real-Time Computer Music Spatialization System

Date: August 1998
Creator: Morgan, Christopher R. (Christopher Robert)
Description: Two of the leading methodologies for spatializing audio over multiple channels include non-real-time multi-track tape and variations of real-time systems that often involve complex configurations of hardware. Of the latter, composers relying on MIDI as a control source have used pairs of sound modules, effects units and automation capable mixers to achieve spatialization over four loudspeakers. These systems typically employ intensity panning, Doppler shifts and reverberation. The present research details the development of a compact spatialization system using a MAX patch controlling a Kurzweil K2500 sampler. This system supports real-time diffusion of up to six simultaneous sound files over eight loudspeakers while incorporating intensity panning, Doppler shifts, delays and filtering. The MAX patch allows composers to choose from several automatic sound spatialization trajectories or to use the mouse to draw and store their own trajectories for later playback. The piece, Circumfusion, is an eighteen-minute composition of electroacoustic music utilizing this spatialization system.
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Cognitive Appraisal, Anxiety, and Coping Strategies in Mediating SAM Activation to a Psychological Stressor

Cognitive Appraisal, Anxiety, and Coping Strategies in Mediating SAM Activation to a Psychological Stressor

Date: August 1998
Creator: Ennis, Michael Patrick
Description: The purpose of this study was to examine Dienstbier's (1989) hypothesis that SAM elicitation is prompted by subject's cognitive expectations of an acute stressor ('challenge' or 'threat' appraisal). Reported anxiety was also measured.
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Computational Complexity of Hopfield Networks

Computational Complexity of Hopfield Networks

Date: August 1998
Creator: Tseng, Hung-Li
Description: There are three main results in this dissertation. They are PLS-completeness of discrete Hopfield network convergence with eight different restrictions, (degree 3, bipartite and degree 3, 8-neighbor mesh, dual of the knight's graph, hypercube, butterfly, cube-connected cycles and shuffle-exchange), exponential convergence behavior of discrete Hopfield network, and simulation of Turing machines by discrete Hopfield Network.
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Conceptual Structure of HIV+ Women With PTSD: Trauma Construct Elaboration

Conceptual Structure of HIV+ Women With PTSD: Trauma Construct Elaboration

Date: August 1998
Creator: Jones, Deborah (Deborah Lynne), 1958-
Description: Human immunodeficiency virus (HIV) can result in posttraumatic stress disorder (PTSD) as events related to illness act as traumatic stressors. This study tested some basic hypotheses of Sewell and Cromwell's personal construct model of PTSD in HIV+ women both with and without diagnoses of PTSD. Trauma-related constructs of HIV+ women with PTSD with HIV+ non-PTSD controls at varying stages of illness were compared. The elaboration, rankings, and valence of trauma-related constructs were examined using the Life Events Repertory Grid (LERG) procedure. Findings provided evidence that a clinical diagnosis of PTSD in women was not associated with the degree of construct elaboration. These findings may imply a qualitative difference in cognitive processing of social stressors and violent stressors.
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Contemporary Biology Curriculum for Non-majors

Contemporary Biology Curriculum for Non-majors

Date: August 1998
Creator: Smallwood, Susan
Description: The proposed biology curriculum for non-majors has one main objective, namely to improve scientific literacy among college students. The National Science Education Standards defines scientific literacy as "the knowledge and understanding of scientific concepts and processes required for personal decision making, participation in civic and cultural affairs, and economic productivity". The suggested strategies to accomplish this goal are to limit the number of topics covered, introduce relevant scientific terminology, emphasize general biological concepts and themes, and hone critical thinking and problem-solving skills. Activities such as group projects, written and oral assignments, and class discussions are effective tools to assess student ability to communicate scientifically. It is also important for students to make connections between the course subject matter and how it affects real life events.
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Creating a Mythistory: Texas Historians in the Nineteenth Century

Creating a Mythistory: Texas Historians in the Nineteenth Century

Date: August 1998
Creator: McLemore, Laura Lyons, 1950-
Description: Many historians have acknowledged the temptation to portray people as they see themselves and wish to be seen, blending history and ideology. The result is "mythistory." Twentieth century Texas writers and historians, remarking upon the exceptional durability of the Texas mythistory that emerged from the nineteenth century, have questioned its resistance to revision throughout the twentieth century. By placing the writing of Texas history within the context of American and European intellectual climates and history writing generally, from the close of the eighteenth century to the beginning of the twentieth, it is possible to identify a pattern that provides some insight into the popularity and persistence of Texas mythistory.
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Dangerous Changes? The Effect of Political Regime Changes on Life Integrity Violations, 1977-1993

Dangerous Changes? The Effect of Political Regime Changes on Life Integrity Violations, 1977-1993

Date: August 1998
Creator: Zanger, Sabine C. (Sabine Carmen)
Description: This study develops a model of different types of political regime changes and their effect on life integrity violations. The data covers 147 countries from 1977-1993. Basic bivariate analyses and multivariate pooled cross-sectional time series analyses employing Ordinary Least Squares regression with panel-corrected standard errors are used. The results show that political regime change in general has no effect on state-sponsored violence. Looking at different types of regime changes, the regression analysis indicates that change from democracy to anocracy is positively correlated with levels of repression at the level of p < .001. A change toward democracy from autocracy is negatively related to human rights violations at the level of p < .01, once relevant control variables are considered.
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Determinants of Refugee Production: an Exploratory Analysis

Determinants of Refugee Production: an Exploratory Analysis

Date: August 1998
Creator: Zottarelli, Lisa Katherine
Description: The issue of refugees and the factors which result in forced migration are of growing importance. Currently, one in every 120 people is living outside of his or her nation of origin by force. There appears to be no end in sight to this situation. This paper seeks to examine conditions within a nation which contribute to the production of refugees. Using a model based on Clark's (1989) early warning system, this paper examines both proximate and root causes of refugee migration. The findings suggest that human rights violations have a proximate causal relationship to refugee production. High levels of state autocracy, low per capita energy consumption, larger rural populations, and a recent negative net migration have an associative relationship to refugee production. Further studies are needed to examine the interrelationship between the proximate and root conditions and their effect on refugee flow.
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Development and Validation of a Two Factor Model of Adult Career Orientation

Development and Validation of a Two Factor Model of Adult Career Orientation

Date: August 1998
Creator: Toofanian, Maryam
Description: Subjects in this study were 5,523 respondents from a survey which was sent to households throughout the United States. The purpose of this study was to examine two basic components of career orientation: career indecision and career insight. Correlational analyses found relationships between career indecision and average job tenure, industry leaving intentions, industry staying intentions, and job satisfaction. Correlational analyses found relationships between career insight, industry staying intentions and job satisfaction. Multiple regression analyses were run using both career indecision and career insight as independent variables found that they had useful levels of incremental validity in predicting industry leaving intentions and job satisfaction. Potential uses of the two-dimensional career indecision - career insight model are discussed.
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Development of an In Vitro Protoplast Culture System for Albizia Lebek (L.) Benth., an Economically Important Leguminous Tree

Development of an In Vitro Protoplast Culture System for Albizia Lebek (L.) Benth., an Economically Important Leguminous Tree

Date: August 1998
Creator: Sinha, Debleena
Description: An in vitro system of generating protoplasts from their callus cultures was established. The friable callus was more productive in terms of producing protoplasts than the green compact callus. The concentration of the various cell wall degrading enzymes had an effect on the viability of the protoplasts in the medium. The protoplast system developed from the experiments was stable and could be used for the transformation experiments of Albizia lebek and for other plant improvement practices.
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Documentation of Biodiversity Impacts (Including Cumulative Biodiversity Impacts) in Environmental Impact Statements

Documentation of Biodiversity Impacts (Including Cumulative Biodiversity Impacts) in Environmental Impact Statements

Date: August 1998
Creator: Bhatia, Sarika
Description: In the United States, biodiversity impact assessment has historically received little attention. Responding in 1993, the Council on Environmental Quality (CEQ) released guidelines on incorporating biodiversity into environmental impact assessment under the National Environmental Policy Act of 1969. The objectives of the study here were to identify the level of documentation of biodiversity impact assessment in sample Environmental Impact Statements (EISs); identify whether in the years following the release of 1993 CEQ guidelines any significant changes have taken place in assessment of biodiversity; identify deficiencies, and if the need exists, formulate appropriate recommendations and approaches for addressing biodiversity in EISs. The study involved a systematic review of 30 EISs published since the release of CEQ guidelines, and five EISs published prior to it. The review involved answering a series of standard questions, which attempted to ascertain the level of biodiversity impacts included in each impact statement. Trends in approaches to biodiversity impact assessment were investigated and deficiencies summarized. The analysis resulted in a series of recommendations for improving the manner in which biodiversity impact assessment can be approached.
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Drug Usage Among Community College Students: Their Knowledge, Attitudes, and Practices

Drug Usage Among Community College Students: Their Knowledge, Attitudes, and Practices

Date: August 1998
Creator: Reid, Sandra S. (Sandra Sue)
Description: The problem of this study concerned illicit psychoactive drug use among community college students. A non-experimental design methodology, a survey, was used in this study. The population consisted of 149 students at 14 randomly selected public community college institutions throughout the United States. Three waves of mailings took place to increase response rate. Community college students appear to be knowledgeable regarding the deleterious physical and mental impact upon those who use drugs. Community college students appear to have a negative attitude toward drug use and toward those who use them. Community college students have an aversion to actual drug use. The illicit psychoactive drug of choice among community college students is marijuana.
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The Effect of Study Skills Training Intervention on United States Air Force Aeromedical Apprentices

The Effect of Study Skills Training Intervention on United States Air Force Aeromedical Apprentices

Date: August 1998
Creator: Griffith, John Clark
Description: The study examined the effects of a study skills training intervention course on U.S. Air Force Aeromedical Apprentices with five main purposes. The first was to examine the relationship between study skills training and the number of times students required academic interventions outside of normal class time. The second purpose was to examine the relationship between study skills training and end of course averages. The third was to determine the relationship between study skills training and the amount of additional instruction, measured in time, students required. The fourth purpose examined the relationship between study skills training and graduation rates. The final purpose was to recommend areas for further research.
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Effectiveness of Group Supervision Versus Combined Group and Individual Supervision with Masters-Level Counselor Trainees

Effectiveness of Group Supervision Versus Combined Group and Individual Supervision with Masters-Level Counselor Trainees

Date: August 1998
Creator: Ray, Dee C. (Deanne Castleberry)
Description: This study was designed to investigate the effectiveness of large group supervision, small group supervision, and combined group and individual supervision on counselor trainees. Specifically, instruments were used to measure the progress in counselor efficacy and counselor development. Analyses of Covariance revealed that all supervision formats produced similar progress in counselor effectiveness and counselor development. Large group supervision, small group supervision, and combined group and individual supervision appear to be equivalent in their effectiveness.
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The Effects of an Experimentally-Induced Bodily Focus Experience on a Psychotherapist during a Psychotherapy Session

The Effects of an Experimentally-Induced Bodily Focus Experience on a Psychotherapist during a Psychotherapy Session

Date: August 1998
Creator: Koehler, Gregory C. (Gregory Charles)
Description: The purpose of this study is to contribute to the current process research by investigating a psychotherapist's experience during psychotherapy. Massage therapy and relaxation therapy were used to manipulate psychotherapist's bodily focus, physiology, and affective state. Topics discussed include: the bodily focus of the therapist, neurobiological models of experience, mind-body boundary issues, and a present-time focus. Doctoral level Counseling and Clinical graduate students were used as participants.
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Effects of Experiential Focusing-Oriented Dream Interpretation

Effects of Experiential Focusing-Oriented Dream Interpretation

Date: August 1998
Creator: Kan, Kuei-an
Description: This study was designed to examine the effects of Experiential Focusing-oriented dream interpretation. The process was twofold. The first part of this study involved a preliminary step of developing an instrument, the Dream Interpretation Effects Questionnaire (DIEQ). The DIEQ assessed specific effects of Experiential Focusing-oriented dream interpretation, e.g., a sense of easing, fresh air, or movement, increased positive energy or self-understanding, development of a new step, enhanced valuation of dreams, or enhanced understanding of the meaning of the dream. Fifty-two adult volunteers participated in the first part of this study. All participants completed Part One of the DIEQ after reporting a dream and freely associating its meaning to another participant. The results were computed to establish the reliability of the DIEQ. The researcher then used the DIEQ along with a structured interview in a pretest-posttest control group design to examine the effects of Experiential Focusing-oriented dream interpretation. Twenty adult volunteers experienced in Experiential Focusing participated in the second part of this study. They were randomly assigned to an experimental group and a waiting-list control group. The experimental participants completed the DIEQ before (pretest) and after (posttest) a 45-minute Experiential Focusing-oriented dream interpretation intervention. By contrast, the control participants completed the ...
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The Effects of Forms, Reports, and Consequences on Homework Completion

The Effects of Forms, Reports, and Consequences on Homework Completion

Date: August 1998
Creator: Piland, Jill A. (Jill Anjanette)
Description: The purpose of this study was to analyze the effects of (1) training the accurate completion of an assignment form, (2) providing feedback on accurate reporting of homework completion, and (3) consequences for completion or non-completion of homework. All students exhibited highly accurate recording of information on assignment forms and reports of what homework had been completed or not completed. Delivering consequences for completion or non-completion of assignments had a modest effect on homework completion. This package increased the proportion of homework assignments completed on time for all students in at least one, or as many as three, academic subjects. This package can be an efficient tool for teachers to monitor homework completion.
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The Effects of Reduced Challenge at the Conclusion of Cognitive and Exercise Tasks

The Effects of Reduced Challenge at the Conclusion of Cognitive and Exercise Tasks

Date: August 1998
Creator: Diehl, Nancy S. (Nancy Sue)
Description: Research has suggested that memories for difficult or painful experiences seem related to a combination of the worst and most recent moments. This peak-end theory was tested in relation to an exercise task (eccentric quadriceps using a BIODEX machine) as well as a cognitive task (standardized quantitative test questions). For each type of task there were two trials: short and happy endings. The happy endings trial included the same task as the short trial with an additional 25% duration at a lesser intensity (80% of short task intensity). A 2 (task type) by 2 (trial type) repeated measures design was used. Participants made global ratings of difficulty immediately after each component, thus generating four ratings, and later indicated their preferences for hypothetical future trials. Results indicated support for the theory that the shorter trials are evaluated as more difficult, with the cognitive task being evaluated as more difficult overall than the exercise task. Preference scores, however, revealed a preference only for the happy endings cognitive task, with no preference indicated on the exercise task. Results confirm previous research in suggesting differences between judgements of tasks and future choices. However, confounds complicated interpretations, especially for the cognitive task. The most conservative ...
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The Effects of the Advance Organizer on Student Perception of Teacher Communication Competence

The Effects of the Advance Organizer on Student Perception of Teacher Communication Competence

Date: August 1998
Creator: Thibodeau, Melissa Eades
Description: The problem of this study was to determine whether the advance organizer would affect students' perception of instructor communication competence. The study also sought to determine any effect the organizer would have on student achievement.
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Electroencephalographic Events During the Wisconsin Card Sorting Test

Electroencephalographic Events During the Wisconsin Card Sorting Test

Date: August 1998
Creator: DeBeus, Mary
Description: Quantitative electroencephalography (QEEG) was used in this study to describe cognitive processing, particularly brain locations used, during performance of the Wisconsin Card Sorting Test (WCST). The hypothesis was that significant cognitive functioning is not limited to the frontal lobes. Significant EEG activity was found in non-frontal areas as well as frontal areas.
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An Empirical Investigation of Personal and Situational Factors That Relate to the Formation of Entrepreneurial Intentions

An Empirical Investigation of Personal and Situational Factors That Relate to the Formation of Entrepreneurial Intentions

Date: August 1998
Creator: Summers, David F. (David Frederic), 1948-
Description: New entrepreneurial organizations emerge as a result of careful thought and action. Therefore, entrepreneurship may be considered an example of planned behavior. Previous research suggests that intentions are the single best predictor of planned behavior. Given the significance of intentions, the purpose of this study was to investigate the relationships between the personal characteristics of the entrepreneur and perceived environmental factors, and entrepreneurial intentions.
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Estimated Extent and Fate of Chlorinated Solvent Contamination in the Soil of the Naval Air Station, Dallas, Texas

Estimated Extent and Fate of Chlorinated Solvent Contamination in the Soil of the Naval Air Station, Dallas, Texas

Date: August 1998
Creator: Trescott, Jill V. (Jill Virginia)
Description: This thesis estimates the spatial extent of chlorinated solvent contamination of the soil at the Naval Air Station, Dallas, then estimates the fate and transport of these contaminants, over time, using the Soil Transport and Fate database and the Vadose-Zone Interactive Processes (VIP) modeling software. Geostatistical analysis identifies two areas with serious chlorinated solvent contamination. Fate and transport modeling estimates that this contamination will degrade and disperse from the soil phase to below regulatory limits within one year, although there is a risk of groundwater contamination. Contaminants are estimated to persist in the water and air phases of the soil. Further sampling is recommended to confirm the results of this study.
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Evaluation of Sequential Events in Phagocytosis by Earthworm Coelomocytes as Potential Immunotoxicity Biomarkers

Evaluation of Sequential Events in Phagocytosis by Earthworm Coelomocytes as Potential Immunotoxicity Biomarkers

Date: August 1998
Creator: Murray, Stephanie Mae
Description: This research evaluated the potential of activation and attachment, as sequential companion biomarkers of phagocytosis by earthworm, Lumbricus terrestris, immunoactive coelomocytes for use in immunotoxicology. The potential was assessed by exposing earthworms to sublethal concentrations of CuSO4 and Arochlor 1254®, chemicals used as reference or standard immunotoxicants.
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An Examination of the Criterion-Related Validity of a Developmental Assessment Center

An Examination of the Criterion-Related Validity of a Developmental Assessment Center

Date: August 1998
Creator: Yurkon, Andrew C.
Description: The purpose of this study was to investigate the criterion-related validity of an assessment center's competency dimension ratings, exercise ratings, and standardized test scores. Numerous studies have clearly demonstrated assessment centers display substantial evidence of content and criterion-related validity. However, the inability of assessment centers to display construct-related validity has caused a great deal of concern among researchers. The suggestions of these researchers are addressed through a more detailed examination of the criterion-related validity of an assessment center. Despite a number of methodological issues, two competency dimensions and two components stand out as viable predictors of the criteria used in this study. Examination of individual and incremental validity coefficients reveals the Strategic Focus and Attracting and Developing Talent competency dimensions, the In-Basket exercise, and the Watson-Glaser scaled score consistently predict the criteria used in this study. The implications of these results for future research are discussed.
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