The self-reported multicultural sports counseling competencies among professional school counselors and Play It Smart academic coaches

Tinsley, Taunya Marie Duquesne University 2005 해외박사(DDOD)

This study compared the self-reported multicultural sports counseling competencies of professional school counselors and Play It Smart academic coaches. Specifically, the study explored the differences in multicultural awareness, multicultural counseling knowledge, multicultural counseling skills, and the multicultural counseling relationship among professionals who provide counseling services to high school student athletes. Defining culture inclusively allows the extension of the definition of multicultural counseling to include the student athlete population. This study compared the multicultural sports counseling competencies of professional school counselors and academic coaches affiliated with high schools throughout the United States that utilize the National Football Foundation's Play It Smart Program. The participants of this study were deliberately sampled and included professional school counselors (n=26), Play It Smart academic coaches with counseling degrees (n=9), and Play It Smart academic coaches without counseling degrees (n=62). The participants in the study completed a demographic questionnaire, the Multicultural Sports Counseling Inventory (MCSCI), and the Marlowe-Crowne Social Desirability Scale (Form C) (MC-SDS Form C). The MCSCI assessed individuals' behavior and attitudes regarding the four multicultural counseling competency factors. The MC-SDS was used to measure social desirability responding. This study was designed to provide a foundation of research that connects multicultural counseling competencies, school counseling, and the student athlete population. The results from this study may provide a preliminary base to inform counseling professionals who provide services to and interact with culturally diverse students, specifically student athletes. Additionally, counselor educators and counselors in training can use these results to develop affirming attitudes and behaviors towards student athletes and to develop culturally sensitive intervention strategies designed to respond to the unique needs of student athletes. Moreover, the information gained from this study may directly help Play It Smart and other programs designed to enhance the development of student athletes by clarifying the relationship between multicultural awareness, multicultural counseling knowledge, multicultural counseling skills, and the multicultural counseling relationship to this specific population.

Probing the structure-function relationship of two non-coding RNAs: The hepatitis delta virus ribozyme andglmS catalytic riboswitch

Tinsley, Rebecca A University of Michigan 2006 해외박사(DDOD)

The hepatitis delta virus (HDV) is a small pathogenic RNA satellite of the hepatitis B virus (HBV). It contains a small ∼85 nucleotide motif, the HDV ribozyme, which requires divalent metal ions for formation of its tertiary structure that consists of a tight double-nested pseudoknot, and for efficient self-cleavage. I have used fluorescence assays to characterize the impact of metal ions on structural changes in the HDV ribozyme. Using fluorescence resonance energy transfer (FRET) and 2-aminopurine fluorescence it was shown that variations in the sequence upstream of the cleavage site have a significant impact on activity, global and local architecture, and flexibility of the ribozyme. Time-resolved FRET was used to measure the Mg 2+ dependence of a global conformational change associated with catalysis. Also, a variety of biochemical and biophysical techniques were used to show that topological alterations impact conformational dynamics and alter metal ion binding, structural changes, and thus catalysis in the ribozyme. These results highlight the important interconnection between metal ions and RNA structure and function. Recently it has been shown that RNA can also serve as a molecular switch (riboswitch) to regulate gene expression, by undergoing changes in structure upon interaction with specific metabolites. The glmS catalytic riboswitch is activated by glucosamine-6-phosphate (GlcN6P), which triggers self-cleavage of the glmS mRNA and reduced expression of the glmS gene involved in GlcN6P production in the cell. We find that cleavage of an external substrate is rapidly activated by nearly 5000-fold to a rate of 4.35 min-1 upon addition of 10 mM GlcN6P. Fluorescence resonance energy transfer reveals that the ribozyme-substrate complex does not undergo a global conformational change upon ligand binding. In addition, structure probing at nucleotide resolution using complementary terbium(III) and RNase V1 footprinting shows no significant change in secondary and tertiary structure upon binding of the ligand. These findings suggest that the glmS ribozyme is pre-folded before it binds its activating ligand, a characteristic that differs from other riboswitches. Thus, our results provide insight into the distinct behavior of the glmS ribozyme and demonstrate the diverse ways riboswitches control gene expression.

Application of a [3+2] annulation reaction to the total syntheses of the annonaceous acetogenins

Tinsley, Jennifer M University of Michigan 2005 해외박사(DDOD)

The application of a Lewis acid catalyzed [3+2] annulation reaction of chiral nonracemic allylsilanes and aldehydes has been applied to the total syntheses of members of the acetogenin family of natural products. The first project entailed the synthesis of asimicin using two sequential chelate-controlled annulation reactions to assemble the bis-tetrahydrofuran core of the natural product. The annulation reaction was found to be an efficient method for assembling this structure type. An improved method for protiodesilylation of the bis-tetrahydrofuran intermediates was also investigated. The second project investigated using the annulation reaction to make several diastereomers of the bis-tetrahydrofuran structure. By modifying the structure of the tetrahydrofuran aldehydes used in the annulation reaction, three additional diastereomers of the bis-tetrahydrofuran structure were synthesized. The annulation reaction was found to be successful in the kinetic resolution manifold. This phenomenon was employed in the total synthesis of bullatacin.

The effects of polymers and asphaltenes upon wax gelation and deposition

Tinsley, Jack F Princeton University 2008 해외박사(DDOD)

Motivated by the need to mitigate problems associated with wax crystallization in crude oil production, the effects of semi-crystalline polymer additives upon model waxy oils and model waxy oils with asphaltenes were examined. Wax gelation properties, particularly yield stress, and wax deposition were studied. A multi-component wax with 85% n-paraffins provided a system where crystalline interactions dominated. Fractionated asphaltenes were added to the oil at concentrations up to 0.2wt%. Tests on model wax/asphaltene solutions showed that the concentration of wax relative to asphaltenes and the asphaltene aggregation state significantly influenced wax crystallization and gelation. Polymer additives included comb-type maleic anhydride co-polymers (MAC), where alkyl tails were appended to the backbone, and polymers with crystalline domains in the backbone (PEB and EVA). Polymer efficacy in reducing yield stress was grouped by polymer type. Yield stress reductions were greater than 1000-fold for the best polymers (MAC), while only 10-fold for the least effective polymers (PEB). Reductions at a higher wax concentration showed the best performance with polymers that could co-precipitate with the wax at higher temperatures. Addition of asphaltenes enhanced the yield stress reduction of the less efficient polymers, while providing no benefit to the most efficient polymer. However, asphaltenes enhanced the effect of the most efficient polymer in depression of the gelation temperature. Effects were explained in terms of crystallization temperature. Modifications to the polymers by incorporation of polar groups (sulfonic acid for MAC; carboxylic acid and hydroxyl groups for PEB) and aromatic groups (styrene co-monomers for MAC and PEB) provided no benefit in reduction of yield stress, gelation temperature or precipitation temperature. No synergistic interactions with asphaltenes were found. A novel laboratory deposition apparatus was constructed to study wax deposition. This apparatus enabled control of the deposition surface temperature (10 to 50°C) and shear stress at the wall (1 to 90Pa). Experiments with volumes of ∼750mL were conducted for times up to four hours. Polymers that decreased the yield stress did not necessarily decrease deposition. Even at wall shear stresses above the yield stress of the parent wax solution, increased wall shear stress had no significant effect on the polymer efficacy due to the increased wax content and to the enrichment of longer n-paraffins in the deposit. The effects of a polymer on deposition rate tracked closely with its effect on the precipitation temperature, with or without asphaltenes. Asphaltenes decreased the initial deposition rate and greatly altered the temporal evolution of the deposit height. They were also found to be enriched in the deposit, to significantly decrease the crystal size and to produce less ordered crystal morphology. The effects of adhesive erosion were also important.

Thiefing sugar: Reading eroticism between women in Caribbean literature

Tinsley, Natasha Alyssa University of California, Berkeley 2003 해외박사(DDOD)

This dissertation investigates Caribbean women's oral, written, and performance texts that refigure landscape metaphors to speak back to (neo)colonial imaginations of the "natures" of race, gender, and sexuality. Collecting texts from Suriname, Haiti, Antigua, Martinique, Cuba, Guyana, and Trinidad, I turn to artistic expressions ranging from couples' dance to experimental novels in order to open dialogue with theorists including Edouard Glissant, Antonio Benitez-Rojo, Joan Dayan, Audre Lorde, Luce Irigaray, Toril Moi, Frantz Fanon, and Chela Sandoval. The songs, dances, poems, and novels I discuss map intersections between women's erotic love for women and pan-Caribbean issues of sex work, colonial law, imperial exhibitions, world wars, and revolutionary politics. Engaging cultural and environmental history as well as postcolonial and feminist theory, I explore how love between Caribbean women shapes and is shaped by concrete geographic and historic situations. This study begins at the opening of the twentieth century and runs through its final decade. Beginning in the colonial period, the first chapter examines reformations of woman-as-flower metaphors in the oral and performance poetry of working-class Afro-Surinamese women who love women in turn of the century Paramaribo. The second excavates the long-buried erotic poems to women written in the 1920s and 30s by Ida Salomon Faubert, daughter of a president of Haiti, who obliquely returns to the tropical gardens of the Caribbean to write her love for women under cover. Moving into the era of decolonization, the third chapter turns to World War II in the Caribbean to perform a queer reading of the river- and sea-side love scenes manques in a novel made infamous by Frantz Fanon's shredding criticism: Mayotte Capecia's Je suis Martiniquaise, the first published novel by a Francophone Caribbean woman. The final chapter enters the linguistic and erotic politics of the nominally postcolonial period to examine Dionne Brand's reclaiming of two similarly exploited topoi---the cane field and women's sexuality---in her novel In Another Place, Not Here. (Abstract shortened by UMI.).

Racial Socialization, Stress, Climate and Coping: an Examination of Educator Perceptions of Classroom Management and Motivation of Students and Colleagues

Tinsley, Brian ProQuest Dissertations & Theses University of Penn 2018 해외박사(DDOD)

Understanding and addressing school faculty stress experienced in primary and secondary school contexts is important in efforts to attract and retain capable teaching staff. With increasing student and staff diversity, issues of race are more pr. Few studies have explored the relationship between racial socialization, race-related stress, and coping among K-12 educators. This study sought to understand how varied forms of racial socialization, as well as perception of school stress, and. The current study hypothesized that educator ethnic group membership, racial socialization, and racial stress would significantly influence perceived abilities to manage classrooms, motivate students, and motivate colleagues. Ethnic minority fac. Racial encounter educational preparation predicted educator perceptions of racial competence, racial coping, racial encounter problem solving, as well as an ability to motivate students and colleagues. Assertiveness concerning racial issues, rac. This study demonstrates how faculty experience and manage the dilemmas of teaching predominantly students of color in varied school climates where racial dynamics and encounters consistently occur. These findings have implications for education.

Responses of rotation-resistant and rotation-susceptible populations of the western corn rootworm to transgenic corn expressing cry toxins and validation of a damage function for corn rootworm larvae

Tinsley, Nicholas Andrew University of Illinois at Urbana-Champaign 2013 해외박사(DDOD)

The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a significant insect pest of corn, Zea mays L. Yield losses and control costs associated with the corn rootworm complex---which includes the northern (Diabrotica barberi Smith & Lawrence) and southern (Diabrotica undecimpunctata howardi Barber) corn rootworms as well---exceed an estimated $1 billion annually in the United States. In Chapter 1 of this dissertation, a comprehensive review of scholarly literature pertaining to the western corn rootworm is presented. The primary goal of the multi-year, multi-state field experiment described in Chapter 2 was to determine if rotation-resistant and rotation-susceptible western corn rootworm larvae differ in their ability to injure transgenic Bt corn roots and cause yield loss. A second goal was to determine if these two populations exhibit differences in emergence or fitness when exposed to Bt corn. A variety of response variables were analyzed, including root injury and yields, as well as cumulative beetle emergence, sex ratios, head capsule widths, and weights. Densities of western corn rootworm beetles were quite low at many of the sites during this experiment. As a result, consistent trends related to root injury and fitness measurements for beetles were difficult to detect. The lack of statistical separation among the various locations and treatments evaluated indicates that many of the variables analyzed are of limited usefulness when densities of western corn rootworm beetles are minimal. The goal of the greenhouse experiment described in Chapter 3 was to determine if rotation-resistant and rotation-susceptible western corn rootworm larvae differ with respect to survival or development on corn expressing one or more Bt toxins---a single-plant bioassay was used. Corn plants were infested with 225 near-hatch eggs at the V5 growth stage (five leaf collar). Larvae were allowed to develop undisturbed on the root systems for 17 d, after which they were recovered using Berlese funnels. Larvae were counted to estimate mortality; head capsule widths were recorded to assess development. No difference between rotation-resistant and rotationsusceptible larvae with respect to mortality caused by exposure to Bt toxins was observed. Head capsule widths suggest that larvae from these two populations develop similarly when reared on Bt corn. Potential explanations for the observed results are discussed. An analysis of readily available field trial data used to validate an existing damage function for corn rootworm larvae is reported in Chapter 4. A nested error component model with unbalanced panel data spanning 19 location-years was used to describe the relationship between yield loss and root injury. The model suggests that for each node of roots injured by larvae, a yield loss of approximately 15% is expected. Statistically significant sources of variation included location and experimental error. Variation in weather across sites was likely the principal factor contributing to the significant effect of location. The large experimental error highlights the limitations of using a multi-year, geographically diverse damage function for predicting yield loss on a small scale. Major factors contributing to the variance components estimated by this model are discussed, and techniques for improving future analyses of the damage function for corn rootworm larvae are suggested.

"Dinner is served". Food, etiquette, and gender in American fiction by women

Tinsley, Teresann Corbelli University of California, Berkeley 2000 해외박사(DDOD)

My project focuses on the fictional meals of American women writers. I argue that, because of the gendering of food, alcohol, and table manners in culture, their dining scenes reflect the evolution, from the mid-nineteenth through the late twentieth centuries, not only of American social ritual, but of conventional definitions of womanhood. Early chapters examine the relationship between the nationalization of Thanksgiving immediately after the Civil War and portrayals of holiday feasts as signs of the nurturing power of the domestic in the novels of Sarah Josepha Hale, Harriet Beecher Stowe, and Louisa May Alcott; between the decline of the tea in the 1880's and depictions of that decline as the loss of feminine community in the work of Sarah Orne Jewett and Mary Wilkins Freeman; and between the rise of the 1890's formal dinner and critiques of the marriage market in the novels of Edith Wharton and Kate Chopin. Chapter Four describes the popularization of the cocktail party as an American institution in the 1920's and argues that its fictional representations in <italic>Save Me the Waltz</italic> by Zelda Fitzgerald, “Big Blonde” by Dorothy Parker and <italic>Nightwood</italic> by Djuna Barnes are tropes for feminine entrapment. The final chapter deals with the role that etiquette books and their association of manners with feminine refinement played in the assimilation of African Americans and immigrants from 1920 to 1980, and critiques of that process by Nella Larsen, Toni Morrison, Anzia Yesierska, and Bharati Mukherjee. In my conclusion, I observe what seems to be a preoccupation with food, etiquette, and gender in the fiction of the writers I have surveyed and argue that this preoccupation represents an acute and conscious awareness of the power of social ritual over the formation of feminine identity. Finally, I suggest that, if like Elaine Showalter, we seek to define “a literature of their own,” this preoccupation with food and dining etiquette constitutes a narrative strategy that unites these women in a feminine literary tradition.

The professional self-esteem of teacher educators in Texas

Tinsley, Ron Texas A&M University - Commerce 2002 해외박사(DDOD)

<italic>Purpose of the study.</italic> The purpose of this study was to gain insights into the professional image teacher educators have of themselves as well as the professional esteem they perceive from their academic colleagues in other departments. The literature suggested that teacher educators were held in low esteem since entering academe through the evolution from teacher institutes to schools, colleges, and departments of education. The literature further suggested that levels of esteem might be affected by the size, type, and accreditations of an institution. The study investigated the relationships among these independent variables and the measured levels of professional self-esteem of teacher educators in Texas. <italic>Procedure.</italic> The study surveyed the beliefs of teacher educators in Texas using an instrument developed by Richard J. Reynolds of Ohio State University in 1992. A total of 549 teacher educators from Texas' 68 college and university teacher preparation programs were identified and sent survey materials. A data set consisting of the responses from 239 returned survey instruments was statistically analyzed to determine any significant differences between levels of professional self-esteem and various factors, including Carnegie Classification of institution and NCATE accreditation status. <italic>Results.</italic> A significant difference was found between how teacher educators in Texas regard themselves professionally and how they feel they are perceived professionally by their academic colleagues in other departments. However, few significant differences were identified in professional self-esteem among teacher educators from different Carnegie Classifications of institutions or between teacher educators from NCATE accredited and non-NCATE accredited institutions. <italic>Conclusions.</italic> Teacher educators in Texas perceived that they were looked down upon as professionals in academe by their colleagues in other departments. The size and output of a teacher educator's institution does not have a significant effect on professional self-esteem. Holding NCATE accreditation appears to have a slightly negative effect on the professional self-esteem of teacher educators within an institution. Further study regarding these matters is called for.