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  Partner: UNT Libraries
 Degree Level: Doctoral
 Collection: UNT Theses and Dissertations
Intentions and Implementation of the Professional Development and Appraisal System in Texas

Intentions and Implementation of the Professional Development and Appraisal System in Texas

Date: December 2000
Creator: Davis-Frost, Diane
Description: The purpose of this study was to describe the intentions of the designers of the Professional Development and Appraisal System (PDAS) in Texas and the perceptions of teachers regarding its implementation. Information for the study was gathered in two phases using two methodologies. The first was a semi-structured interview with four expert informants instrumental in the design and implementation of the PDAS at the state level. The second component of the study was conducted with teachers using a 37-item Likert survey. The population for this phase of the study was 150 elementary and 150 secondary teachers chosen randomly from three school districts in North Central Texas. The districts were selected to represent a variety of sizes in regard to student population and represent diverse student population characteristics and socioeconomic levels. Data from the semi-structured interviews and the returned surveys were analyzed to determine the designers' intentions and areas of emphasis and to describe the alignment the teachers' perceptions and the designers' intentions. Quantitative data gathered from the surveys were analyzed using descriptive statistics as well as a correlation and function analysis and analysis based on a Cronbach alpha coefficient. The analysis of data revealed the following: 1. Teachers perceived that ...
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The Interacting Effects of Anxiety Levels, Task Complexity, and Warm-Up Conditions on Learning a Serial Type Motor Task

The Interacting Effects of Anxiety Levels, Task Complexity, and Warm-Up Conditions on Learning a Serial Type Motor Task

Date: June 1970
Creator: Craig, Bruce Porter
Description: The major purpose of this study was to determine the effects of manifest anxiety, task complexity, and warm-up conditions on learning a two-phase serial type motor task. Another purpose was to consider the implications of these effects for physical educators, coaches, and others interested in improving educational practices and securing optimum performance levels.
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Interaction Effects of Office Education Programs, Community Size, and Teacher Attitude on the Attitudes Held by High School Office Education Students Toward Office Employment

Interaction Effects of Office Education Programs, Community Size, and Teacher Attitude on the Attitudes Held by High School Office Education Students Toward Office Employment

Date: August 1971
Creator: Pitko, Anita Jane, 1922-
Description: The purpose of the study was to ascertain whether significant differences in attitudes held by office education students are associated with (l) the type of office education program in which students were enrolled, (2) the size of the community in which the students lived, and (3) the attitude held by the classroom teacher.
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Interaction of learning approach with concept integration and achievement in a large guided inquiry organic class.

Interaction of learning approach with concept integration and achievement in a large guided inquiry organic class.

Date: August 2009
Creator: Mewhinney, Christina
Description: A study was conducted to investigate the relationship of students' concept integration and achievement with time spent within a topic and across related topics in a large first semester guided inquiry organic chemistry class. Achievement was based on evidence of algorithmic problem solving; and concept integration was based on demonstrated performance explaining, applying, and relating concepts to each other. Twelve individual assessments were made of both variables over three related topics - acid/base, nucleophilic substitution and electrophilic addition reactions. Measurements included written, free response and ordered multiple answer questions using a classroom response system. Results demonstrated that students can solve problems without conceptual understanding. A second study was conducted to compare the students' learning approach at the beginning and end of the course. Students were scored on their preferences for a deep, strategic, or surface approach to learning based on their responses to a pre and post survey. Results suggest that students significantly decreased their preference for a surface approach during the semester. Analysis of the data collected was performed to determine the relationship between students' learning approach and their concept integration and achievement in this class. Results show a correlation between a deep approach and concept integration and a ...
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Interactions between Carotid and Cardiopulmonary Baroreceptor Populations during Dynamic Exercise in Man

Interactions between Carotid and Cardiopulmonary Baroreceptor Populations during Dynamic Exercise in Man

Date: May 1993
Creator: Potts, Jeffrey Thomas
Description: During dynamic exercise the arterial baroreflexes have been thought to reset to the prevailing level of systemic pressure in order to modulate transient changes in blood pressure with the same sensitivity (gain) as at rest. To test this hypothesis, cardiovascular responses to dynamic exercise and carotid baroreflex responses to graded neck suction and neck pressure (NS/NP) were examined in seven men of moderate fitness (V02 = 41.4±3.6 ml O2*kg^-1*min^-1) during two levels (20% and 40% of peak oxygen uptake) of steady-state exercise. In addition, deactivation of cardiopulmonary baroreceptors has been thought to increase carotid baroreflex responsiveness in the quiescent state in man.
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Interactions Between Texts, Illustrations, and Readers: The Empiricist, Imperialist Narratives and Polemics of Sir Arthur Conan Doyle

Interactions Between Texts, Illustrations, and Readers: The Empiricist, Imperialist Narratives and Polemics of Sir Arthur Conan Doyle

Date: December 1995
Creator: Favor, Lesli J.
Description: While literary critics heretofore have subordinated Conan Doyle to more "canonical" writers, the author argues that his writings enrich our understanding of the ways in which Victorians and Edwardians constructed their identity as imperialists and that we therefore cannot afford to overlook Conan Doyle's work.
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Interactions of Clean and Sulfur-modified Reactive Metal Surfaces with Aqueous Vapor and Liquid Environments : A Combined Ultra-high Vacuum/electrochemistry Study

Interactions of Clean and Sulfur-modified Reactive Metal Surfaces with Aqueous Vapor and Liquid Environments : A Combined Ultra-high Vacuum/electrochemistry Study

Date: May 1998
Creator: Lin, Tien-Chih, 1966-
Description: The focus of this research is to explore the molecular-level interactions between reactive metal surfaces and aqueous environments by combined ultra-high vacuum/electrochemistry (UHV-EC) methodology. The objectives of this work are to understand (1) the effects of sulfate ions on the passivity of metal oxide/hydroxide surface layer, (2) the effects of sulfur-modification on the evolution of metal oxide/hydroxide surface layer, and (3) the effects of sulfur adsorbate on cation adsorption at metal surfaces.
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The Interactions of Plasma with Low-k Dielectrics: Fundamental Damage and Protection Mechanisms

The Interactions of Plasma with Low-k Dielectrics: Fundamental Damage and Protection Mechanisms

Date: August 2011
Creator: Behera, Swayambhu Prasad
Description: Nanoporous low-k dielectrics are used for integrated circuit interconnects to reduce the propagation delays, and cross talk noise between metal wires as an alternative material for SiO2. These materials, typically organosilicate glass (OSG) films, are exposed to oxygen plasmas during photoresist stripping and related processes which substantially damage the film by abstracting carbon, incorporating O and OH, eventually leading to significantly increased k values. Systematic studies have been performed to understand the oxygen plasma-induced damage mechanisms on different low-k OSG films of various porosity and pore interconnectedness. Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy and atomic force microscopy are used to understand the damage kinetics of O radicals, ultraviolet photons and charged species, and possible ways to control the carbon loss from the film. FTIR results demonstrate that O radical present in the plasma is primarily responsible for carbon abstraction and this is governed by diffusion mechanism involving interconnected film nanopores. The loss of carbon from the film can be controlled by closing the pore interconnections, He plasma pretreatment is an effective way to control the damage at longer exposure by closing the connections between the pores.
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Interactions of Presentation Formats and Decision-Maker Characteristics upon Multiple Decision-Making Tasks: an Experiment Using Multiple Cognitive Assessments

Interactions of Presentation Formats and Decision-Maker Characteristics upon Multiple Decision-Making Tasks: an Experiment Using Multiple Cognitive Assessments

Date: December 1994
Creator: Henson, Kerry L. (Kerry Lynn)
Description: Information systems research tends to ignore individual differences in users. This laboratory experiment sought to illuminate contributions of decision-makers' cognitive processes to decision outcome as reflected in four hypothesis sets: the impact of imagery preference and presentation format upon (HI) recall accuracy and upon hemispheric activation during (H2) encoding and (H3) recall, and (H4) to examine the relationship between hemispheric activation differences and accuracy differences. Point-value (specific values) and intraset-pattern (relationships between values) recall were considered. Thirty MBA students, grouped by imagery preference (cognitive style) as favoring verbal (textual) or visual (graphical) information presentation, performed computer-based recall tasks using tabular and graphical formats in a repeated measures design. Hemispheric activation (cognitive process) was assessed using ratios of EEG activity in six frequency bands captured from six pairs of homologous electrode sites during encoding and recall.
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The Interactive Effect of Fund Balance and Revenue Diversification on Local Government Fiscal Sustainability

The Interactive Effect of Fund Balance and Revenue Diversification on Local Government Fiscal Sustainability

Date: August 2013
Creator: Wachira, David W.
Description: This dissertation explores how cities achieve fiscal sustainability—the financial capacity to consistently meet basic public service responsibilities regardless of economic conditions. Two research questions arise from the interplay between the local economy and fiscal sustainability. First, what management tools do cities use to achieve fiscal sustainability given that economic conditions are largely outside their control? Second, what explains the variation among cities in the financial management tools used to achieve fiscal sustainability? The financial management tools of interest in this study are revenue diversity and the size of the fund balance. It is conjectured that financial management tools interact with each other prompting the tools to function as policy substitutes for each other. Cities achieve fiscal sustainability by strategically choosing budget-balancing tools appropriate to their economic conditions. The study utilizes a cross-state comparison from 351 Massachusetts municipal governments using panel data from 2000 to 2009 and 993 New York municipal governments using panel data from 2001 to 2010. Using theories of fiscal sustainability and revenue diversification, several models are proposed that test the interactive effects of fund balance size and revenue diversity on fiscal sustainability. The results from the empirical analyses show that cities use various financial management tools to ...
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