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The Effect of Relationship Quality on Mental Representations of Social Support and Cardiovascular Reactivity

The Effect of Relationship Quality on Mental Representations of Social Support and Cardiovascular Reactivity

Date: May 2011
Creator: Prather, Courtney C.
Description: The aim of the current study was to examine how thinking about qualitatively different social network members may differentially affect cardiovascular reactivity to a subsequent stressor. Eighty-two undergraduates were asked to think and write about different types of relationships preceding a social stressor. No differences between conditions in CVR were found during social support induction phase or the stressor task. Women in the supportive condition were found to have slower SV recovery than those in the ambivalent condition. The results of this study are inconsistent with previous evidence for a relationship between mental representations of social ties and CVR. Future research should seek to rule out confounding variables and clarify this effect.
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Struggling Middle School Readers Learning To Make Intertextual Connections With Texts

Struggling Middle School Readers Learning To Make Intertextual Connections With Texts

Date: December 2011
Creator: Johnson, Sunni
Description: When people read, they often make connections to their lives, the world, and other texts. Often, these connections are not overt, but are a thinking process invisible to observers. The purpose of this study was to explore the intertextual connections struggling middle school students made as they read multiple topically-related texts to build knowledge, through observation of discussions, surveys, and interviews with students. The students received 30 lessons based on the constructivist model of comprehension. Data sources included observations during the delivery of these interactive lessons and surveys regarding their connections, their use of the connection strategies in content area classes, and their knowledge of the topic. The observations and surveys were analyzed using the constant comparative method. Information rich cases were developed from these data, as well as from interviews with selected students. Although the students were considered struggling readers, they did not respond to the instruction as stereotypical struggling readers. They were engaged, and they led discussions and shared connections with the class. The students demonstrated they learned to make connections and more text-to-text or intertextual connections overall. The students made connections when interested in the topic and had opportunities to discuss the texts. Finally, the students sometimes ...
Contributing Partner: UNT Libraries
Measuring Atmospheric Ozone and Nitrogen Dioxide Concentration by Differential Optical Absorption Spectroscopy

Measuring Atmospheric Ozone and Nitrogen Dioxide Concentration by Differential Optical Absorption Spectroscopy

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Date: December 2011
Creator: Jerez, Carlos J.
Description: The main objective was to develop a procedure based on differential optical absorption spectroscopy (DOAS) to measure atmospheric total column of ozone, using the automated instrument developed at the University of North Texas (UNT) by Nebgen in 2006. This project also explored the ability of this instrument to provide measurements of atmospheric total column nitrogen dioxide. The instrument is located on top of UNT’s Environmental Education, Science and Technology Building. It employs a low cost spectrometer coupled with fiber optics, which are aimed at the sun to collect solar radiation. Measurements taken throughout the day with this instrument exhibited a large variability. The DOAS procedure derives total column ozone from the analysis of daily DOAS Langley plots. This plot relates the measured differential column to the airmass factor. The use of such plots is conditioned by the time the concentration of ozone remains constant. Observations of ozone are typically conducted throughout the day. Observations of total column ozone were conducted for 5 months. Values were derived from both DOAS and Nebgen’s procedure and compared to satellite data. Although differences observed from both procedures to satellite data were similar, the variability found in measurements was reduced from 70 Dobson units, with ...
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The Relationship of Force on Myosin Subfragment 2 Region to the Coiled-Coiled Region of the Myosin Dimer

The Relationship of Force on Myosin Subfragment 2 Region to the Coiled-Coiled Region of the Myosin Dimer

Date: December 2011
Creator: Hall, Nakiuda M.
Description: The stability of myosin subfragment 2 was analyzed using gravitational force spectroscopy. The region was found to destabilize under physiological force loads, indicating the possibility that subfragment 2 may uncoil to facilitate actin binding during muscle contraction. As a control, synthetic cofilaments were produced to discover if the observations in the single molecule assay were due to the lack of the stability provided by the thick filament. Statistically, there was no difference between the single molecule assay data and the synthetic cofilament assay data. Thus, the instability of the region is due to intrinsic properties within subfragment 2.
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Electoral System Effects On Anti-muslim Sentiments In Western Europe

Electoral System Effects On Anti-muslim Sentiments In Western Europe

Date: December 2011
Creator: Saleemi, Asmara
Description: The purpose of this thesis is to answer the question, why is there a variation in anti-Muslim sentiments across Western Europe? There is existing literature on individual and country-level variable s to explain why prejudice exists, but this research examines the impact of political institutions on anti-Muslim sentiments. Based on new institutionalism theory, electoral systems can shape public attitudes by providing far-right parties a platform to put their concerns on the agenda, and these parties promote anti-Muslim popular sentiments. The results of this analysis support this argument in that the larger the average district magnitude in a country, the greater the anti-Muslim sentiments. The findings also show that an increase in far-right party vote-share also covaries with an increase in anti-Muslim sentiments.
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Fields and Armor: A Comparative Analysis of English Feudalism and Japanese Hokensei

Fields and Armor: A Comparative Analysis of English Feudalism and Japanese Hokensei

Date: December 2011
Creator: Garrison, Arthur Thomas
Description: Fields and Armor is a comparative study of English feudalism from the Norman Conquest until the reign of King Henry II (1154-1189) and Japan’s first military government, the Kamakura Bakufu (1185- 1333). This thesis was designed to examine the validity of a European-Japanese comparison. Such comparisons have been attempted in the past. However, many historians on both sides of the equation have levied some serious criticism against these endeavors. In light, of these valid criticisms, this thesis has been a comparison of medieval English government and that of the Kamakura-Samurai, because of a variety of geographic, cultural and social similarities that existed in both regions. These similarities include similar military organizations and parallel developments, which resulted in the formation of two of most centralized military governments in either Western Europe or East Asia, and finally, the presence and real enforcement of two forms of unitary inheritance in both locales.
Contributing Partner: UNT Libraries
Arithmetic Computations and Memory Management Using a Binary Tree Encoding af Natural Numbers

Arithmetic Computations and Memory Management Using a Binary Tree Encoding af Natural Numbers

Date: December 2011
Creator: Haraburda, David
Description: Two applications of a binary tree data type based on a simple pairing function (a bijection between natural numbers and pairs of natural numbers) are explored. First, the tree is used to encode natural numbers, and algorithms that perform basic arithmetic computations are presented along with formal proofs of their correctness. Second, using this "canonical" representation as a base type, algorithms for encoding and decoding additional isomorphic data types of other mathematical constructs (sets, sequences, etc.) are also developed. An experimental application to a memory management system is constructed and explored using these isomorphic types. A practical analysis of this system's runtime complexity and space savings are provided, along with a proof of concept framework for both applications of the binary tree type, in the Java programming language.
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Organizational Citizenship Behaviors Among Public Employees In Guadalajara Metropolitan Area, Mexico

Organizational Citizenship Behaviors Among Public Employees In Guadalajara Metropolitan Area, Mexico

Date: December 2011
Creator: León Cázares, Filadelfo
Description: This study develops a theoretical framework to examine the major dimensions of transformational leadership style (TLS), public service motivation (PSM), organizational citizenship behavior (OCB), and public organization performance (POP). It is hypothesized that when employees perceived a public organization is practicing a transformational leadership style, they are likely to have a favorable view on the performance of their organization, but the effect is indirect and mediated by OCB. At the same time, if employees have a strong desire to serve and improve the welfare of others, they are likely to perform beyond their job requirements and thus, likely to express a positive view on the organizational performance. A structural equation modeling was used to examine 1,016 public employees (67.7% response rate) in the Guadalajara metropolitan area, Mexico i.e., concerning their perceptions about leadership style, motivation to serve in the public sector, citizenship behaviors, and public organizational performance. The results suggest that if Mexican public employees perceived their leaders to adopt a transformational leadership style, they were likely to have a favorable view on the performance of their organization (direct effect); and that, the effect is mediated by their tendency to engage in activities that would contribute to the functioning of ...
Contributing Partner: UNT Libraries
Jean-michel Defaye’s Á La Maniére De Debussy Pour Trombone Et Piano: A Compositional Comparison To Claude Debussy’s Harmonic, Melodic, And Rhythmic Practices

Jean-michel Defaye’s Á La Maniére De Debussy Pour Trombone Et Piano: A Compositional Comparison To Claude Debussy’s Harmonic, Melodic, And Rhythmic Practices

Date: December 2011
Creator: Rader, Aaron Christian
Description: Jean-Michel Defaye composed Á La Maniére de Debussy in 2001 as part of a series of trombone solos written to emulate the compositional styles of significant predecessors. This study compares Á La Maniére de Debussy to the harmonic, melodic, and rhythmic practices of Claude Debussy (1862–1918), an innovative French composer and recognized figure of musical Impressionism. At present, there is limited scholarship on Defaye’s Á La Maniére de Debussy and its compositionally imitative nature. The first section of this document presents a survey of historical information, current literature, and methods of examination. The second section provides biographical information on composers Jean-Michel Defaye and Claude Debussy. The third section exhibits a compositional comparison of Á La Maniére de Debussy to Debussy’s use of harmony, melody, and rhythm. The final section draws a conclusion to the piece’s importance to the trombone solo repertoire and includes an interview with French trombonist Jacques Mauger who collaborated with Defaye on Á La Maniére de Debussy. Although this document is not a performance guide, an informed performance of Á La Maniére de Debussy requires a trombonist to understand Debussy’s unique treatment of harmony, melody, and rhythm.
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High School Teachers’ Perceptions Of Their Principals As Culturally Proficient Leaders

High School Teachers’ Perceptions Of Their Principals As Culturally Proficient Leaders

Date: December 2011
Creator: Owens Luper, Willene DeeAndra
Description: This study examined Texas high school teachers’ perceptions of their principals as culturally proficient leaders, focusing specifically on how teacher-, school-, and principal-related factors impacted these perceptions. A sample of 104 teachers in culturally diverse secondary schools from a large urban district in Texas participated. An electronic survey was utilized to collect data. Results yielded an average total cultural proficiency score of 111 out of a possible 175, indicating that teachers perceived their principals “sometimes use” culturally proficient practices. Teachers’ perceptions of their principal’s use of culturally proficient leadership practices varied significantly by years of teachers’ experience and school accountability rating (exemplary, academically acceptable, and academically unacceptable). Perceptions of teachers at an Exemplary school were significantly different (higher than the perceptions of teachers at other schools from the same district). Teachers with 11 to 20 years of teaching experience gave significantly lower ratings (22.45 points) than teachers with 1 to 5 years of experience (125.53) and teachers with over 20 years of experience (118.94). While differences were not statistically significant, black and Hispanic teachers rated their principals’ culturally proficient practices higher than white teachers. Age, subject area taught and teacher’s gender, or race being the same as the principal’s gender ...
Contributing Partner: UNT Libraries