The purpose of the study was to investigate the effects of play materials on the interactions between a child with autism and her sibling. Three conditions were assessed: open choice, materials chosen by the child with autism, and materials chosen by the typically developing sibling. Within each activity, measures of social interactions were assessed. Results of the assessment showed that more interactions occurred with a material chosen by the child with autism. After sibling training (targeting specific teaching skills), social interactions remained highest in the condition with materials chosen by the child with autism. The results are discussed in terms of a material assessment to optimize sibling training conditions and the importance of sibling relationships.

Ecological restoration is quickly becoming a major approach to how humans interact with the natural world. Some view restoration as another land management technique on par with conservation and preservation. Others view it as a way to make reparations for our misdeeds and to reincorporate humans into the natural world. Ideas regarding restoration from key academics and restorationists are evaluated here. Their views have set the stage for the contemporary paradigm. Values that may be attributed to restoration and received from it are evaluated. I discuss my own reservations regarding potential problems with the product and practice of restoration. What is at stake regarding the involvement of people in restoration is examined, focusing on the different impacts volunteers and paid workers have on the value of the practice and outcome of the product.

The following premise is based on the ideas of social theorists who have contributed to understanding the importance of image in society. This proposal argues that political participation is susceptible to exploitation in the form of conspicuous consumption as defined by Thorstein Veblen. The analyses that follow will test the degree to which Americans who demonstrate more traditional forms of conspicuous consumption also tend to show more activity in political venues. While the correlation of these two variables is not sufficient to demonstrate cause and effect, it may be significant enough to attract more researchers to this question: are Americans using political involvement to positively influence the way that their social status is perceived by others?

An iodine surface layer has been prepared on Ru(poly) and Ru(0001) electrodes by exposure to iodine vapor in UHV and polarizing in a 0.1 M HClO4/0.005 M KI solution, respectively. A saturation coverage of I on a Ru(poly) electrode passivates the Ru surface against significant hydroxide, chemisorbed oxygen or oxide formation during exposure to water vapor over an electrochemical cell in a UHV-electrochemistry transfer system. Immersion of I-Ru(poly) results in greater hydroxide and chemisorbed oxygen formation than water vapor exposure, but an inhibition of surface oxide formation relative that of the unmodified Ru(poly) surface is still observed. Studies with combined electrochemical and XPS techniques show that the iodine surface adlayer remained on top of the surface after cycles of overpotential electrodeposition/dissolution of copper on both Ru(poly) and Ru(0001) electrodes. These results indicate the potential bifunctionality of iodine layer to both passivate the Ru surface in the microelectronic processing and to act as a surfactant for copper electrodeposition. The electrodeposition of Cu on Ru(0001) or polycrystalline Ru was studied using XPS with combined ultrahigh vacuum/electrochemistry methodology (UHV-EC) in 0.1 M HClO4 with Cu(ClO4)2 concentrations ranging from 0.005 M to 0.0005 M, and on polycrystalline Ru in a 0.05M H2SO4/0.005 M CuSO4/0.001 …

This study examined the effectiveness of employing videoconferencing and Web-based instruction in the preparation of special education personnel. Due to the acute shortage of special education personnel, it was anticipated that the use of videoconferencing and online instruction would provide a convenient way for students to attend class without having to travel to the actual location of the educational site. Further, it was believed that this initiative would result in higher student enrollment in special education teacher certification programs, consequently leading to an increase of personnel in the field. Moreover, the increase in personnel would enhance the ability of educational institutions to address the dismal academic, social, and behavioral outcomes of students with disabilities. Information for the study was collected from surveys that investigated how students perceived the use of videoconferencing and web-based instruction in the preparation of special education personnel. Ninety-four graduate students responded to the videoconferencing surveys while 88 responded to the Web-based instruction surveys. Six respondents were randomly selected to participate in face-to-face interviews designed to investigate the effectiveness of both approaches. Findings indicated that videoconferencing and Web-based instruction are convenient ways for students to attend class although videoconferencing sites may not be conveniently located to all …

To illustrate the intersection of ethical language and ethical frameworks within technical communication, this dissertation analyzes the history and documentation of the human radiation experiments of the 1940s through the 1970s. Research propositions included clarifying the link between medical documentation and technical communication by reviewing the literature that links the two disciplines from the ancient period to the present; establishing an appropriate historiography for the human radiation experiments by providing a context of the military, political, medical, and rhetorical milieu of the 1940s to the 1970s; closely examining and analyzing actual human radiation experiment documentation, including proposals, letters, memos, and consent forms, looking for established rhetorical constructions that indicate a document adheres to or diverts from specific ethical frameworks; and suggesting the importance of the human radiation documents for studying ethics in technical communication. Close rhetorical analysis of the documents included with this project reveals consistent patterns of metadiscourse, passive and nominal writing styles, and other rhetorical constructions, including negative language, redundancies, hedges, and intensifiers, that could lead a reader to misunderstand the writer's original ethical purpose. Ultimately this project finds that technical communicators cannot classify language itself as ethical or unethical; the language is simply the framework with which …

Four experimentally naïve white Carneau pigeons learned to match three colors to each other in a variant of an Identity matching-to-sample procedure with an FR20 on samples and a response-initiated FI8-s on comparisons. In Experiment 1, the extent to which subjects were matching on the basis of identity was assessed by presenting, in extinction, test trials comprising novel stimuli serving as the sample (and matching comparison) or as the nonmatching comparison. The results from Experiment 1 suggested intermediate or little to no transfer on the basis of identity. Experiment 2 reassessed transfer on the basis of identity with differential reinforcement on the test trials. Under these conditions, two of the four birds demonstrated substantially better than chance levels of performance. These data imply that while the extended response requirements may be necessary, other procedural aspects may be responsible for generalized identity matching in the pigeon.

The industrial uses of cottonseed oil are limited by its fatty acid composition. Genetic modification of cotton lipid profiles using seed-specific promoters could allow cotton growers to produce valuable new oils in the seed without adverse effects on fiber quality and yield, therefore making this crop more commercially profitable. Transgenic cotton callus harboring a diverged fatty acid desaturase gene (FADX) from Momordica charantia was characterized for production of alpha-eleostearic acid (conjugated double bonds: 18:3 D9 cis, 11 trans, 13 trans), not normally found in cotton. Gas chromatography (GC) in conjunction with mass spectrometry (MS) confirmed production of alpha-eleostearic acid in the transgenic cotton tissues. A second series of transformation experiments introduced the cotton fatty acid thioesterase B (FATB) cDNA, fused to the seed-specific oleosin promoter into cotton to promote the over-expression of FATB, to generate cotton with increased palmitate in the cottonseed. PCR amplification, as well as fatty acid analysis by gas chromatography, confirmed introduction of the FATB cDNA in transgenic tissues. Collectively, these results demonstrate the feasibility of manipulating the fatty acid composition in cotton via transgenic approaches and form the basis for continued efforts to create novel oils in cottonseed.

This study was designed to determine how willing private schools are to participate in a limited school voucher program if various state regulations are required and whether willingness to participate varies among types of schools. Provisions of voucher bills proposed in the Texas legislature and requirements included in other states' legislation were used to determine the sample, hypothetical voucher amount, and possible state regulations. Three hundred eighteen surveys were sent, and 150 were returned, giving a 47% return rate. Data were entered into SPSS and analyzed using chi-square and crosstabs. Initially chi square was used to see if findings were significant at the .0041 level. This alpha level was reached by using the Bonferroni correction factor, which holds experiment wise Type I error to .05. Crosstabs was used to determine if relationships between regulation acceptance and type of schools were significant. Overall, as the amount of regulation increased, private school willingness to participate in a voucher program decreased. The regulations rejected by a large majority of schools in all categories were open admissions and student religious exemptions. In the areas of testing, curriculum, and teacher qualifications, private schools were much more willing to participate if they were allowed to utilize …

This work explores identity positions of speakers in modern and contemporary poetry with respect to themes of subjectivity, self-awareness, lyricism, heteroglossia, and social contextualization, from perspectives including Bakhtinian, queer, feminist and postructuralist theories, and Peircian semiotics. Tony Hoagland, W.H. Auden, Adrienne Rich, and the poetic prose of Hélène Cixous provide textual examples of an evolving aesthetic in which the poet's self and world comprise multiple dynamic, open relationships supplanting one in which simple correspondences between signifiers and signifieds define selves isolated from the world. Hypertext and polyamory serve as useful analogies to the semantic eros characteristic of such poetry, including the collection of original poems that the critical portion of this thesis introduces.

Dining out has become an important part of the American lifestyle, greater frequencies as well as increased portion sizes have led to concern. The number of Americans that are classified as overweight or obese has also increased considerably, and the foodservice industry has become a target. Mandatory labeling of menu items has been avoided to this point, but the subject has moved to the forefront and continues to be debated. This study surveyed 502 patrons at a student-run restaurant in Texas. Respondents provided information concerning their health and dining habits as well as their attitudes toward and intended usage of nutritional information (NI) on menus in full-service restaurants. Gender, education levels, age, and household income affect the attitudes toward and intended usage of NI. Exercise frequency, the current use of nutritional information on packaged foods, and the practice of healthy eating habits are all related to the intended use of NI while dining out.

Interview with longtime Denton residents Frank and Betty Ann Barrow for the Denton County Historical Commission. The interview includes Frank's personal experiences about his childhood and moving to Denton, having a career as a radio announcer, serving in the Special Services division of the Army Air Forces, having a career as an automobile dealer, insurance agent, and haberdasher in Denton, working with a Methodist church, being involved in the Denton Community Theatre, serving on the Denton City Council, and his political career as mayor of Denton. It also includes Betty Ann's family history and how they coped with the Great Depression, information on her education at North Texas State College, and her personal experiences about marriage, the death of her husband in a flying accident, widowhood, her marriage to Frank Barrow, her clothing business, and working to liberalize Denton race relations. The interview includes an appendix with photographs, a photograph legend, a letter sent out to family members, a pamphlet for The Barrow Society, and an editorial piece about Frank Barrow.

The effects of multiple interventions in organizational development change were studied in a comprehensive meta-analytic review. Thirteen organizational interventions were assessed on five outcome variables based upon previous research of six major meta-analytic reviews. Findings based on 138 studies indicated that there were no significant effects of multiple interventions on positive organizational change as opposed to individually implemented interventions. The findings are not congruent with previous findings of organizational development change, and possible issues surrounding these differences are discussed.

Organizational change and development (OCD) has been studied by researchers to identify the effectiveness of change initiatives. Because of the broad scope of interventions in OCD, these studies have covered a range of areas including multiple interventions and the methodological rigor used by researchers. However, few have looked at organizational versus individual change within an organization, to examine whether individual change is more effective than organizational change. The purpose of this study is to determine if organizational change occurs in a top down or bottom up manner. A meta-analysis was conducted using 238 field experiments. Each study was coded for intervention and organizational outcome and for individual or organizational level variables. Effect sizes were calculated for each study, each level, and each level by intervention and outcome measure. Results indicate that while OCD interventions overall had a moderate effect size, the level of intervention or outcome was not a moderating variable.

This study investigated if the use of a team feedback system resulted in peers perceiving a change in behavior. Personality variables such as conscientiousness, agreeableness, and extraversion were examined as possible moderators. Self-ratings and peer ratings were collected from 164 individuals through the use of the Center for Collaborative Organizations' Team Feedback System. Using polynomial regression, it was determined that time 1 peer ratings predicted behavior change and the combination of conscientiousness variables moderated peer perceived behavior change.

People living with HIV/AIDS (PLH) struggle with depression. Recent research suggests that depression affects medical regimen adherence, disease progression, and risky sexual behaviors. The present study uses a stress and coping theory viewing HIV-related stigma and physical symptoms as stressors in PLH. Results suggest whereas symptoms and stigma consistently predict negative affect, positive affect, and overall depression, the role of optimism, pessimism, active coping, denial, and behavioral disengagement is not as clear. Pessimism and denial predict negative affect and depression. Optimism and behavioral disengagement predict depression and positive affect. Active coping only predicts positive affect. Focusing on positive and negative affect as distinct components that contribute to overall depression may help researchers develop interventions more effectively.

This study explored public safety programs in publicly controlled American community colleges. The need for accurate and complete information in an era of homeland security and defense is paramount as government, education, the private sector, and the citizenry interact to ensure a safer nation. The general purposes of this study were to compile current descriptive information on public safety programs and curricula in America's publicly controlled community colleges, and to identify problems and prospects inherent in the administration of these programs. Information is critical as community colleges continue to struggle with decreased funding and seek alternative sources of revenue. Community colleges represent a tremendous network for course delivery, such as homeland security training, but struggle to obtain the attention or the funding from the federal government. A review of pertinent literature provided the foundation of a 100-item survey questionnaire that was mailed to a random sample of 200 public safety administrators at American community colleges. The study also included a review of archival data to further describe the programs. Of the 200 instruments sent, 97 (48.5%) were completed, returned, and useable. From the literature, the survey results, and the archival data, a comprehensive list of community colleges with public safety …

The purpose of this dissertation is two-fold: one is to analyze the narratives of Acis and Galatea written by Ovid, and the two libretti by Handel's librettists including Nicola Giuvo (1708) and John Gay (1718) with John Hughes and Alexander Pope; the other is to correlate this textual analysis within the musical languages. A 1732 pastiche version is excluded because its bilingual texts are not suitable for the study of relationships between meaning and words. For this purpose, the study uses the structural theory- -mainly that of Gérard Genette--as a theoretical framework for the analysis of the texts. Narrative analysis of Acis and Galatea proves that the creative process of writing the libretto is a product of a conscious acknowledgement of its structure by composer and librettists. They put the major events of the story into recitative and ensemble. By examining the texts of both Handel's work, I explore several structural layers from the libretti: the change of the characterization to accommodate a specific occasion and the composer's response to contemporary English demand for pastoral drama with parodistic elements, alluding to the low and high class of society. Further, Polyphemus is examined in terms of relationships with culture corresponding to …

Adherent Cu films were electrodeposited onto polycrystalline W foils from purged solutions of 0.05 M CuSO4 in H2SO4 supporting electrolyte and 0.025 M CuCO3∙Cu(OH)2 in 0.32 M H3BO3 and corresponding HBF4 supporting electrolyte, both at pH = 1. Films were deposited under constant potential conditions at voltages between -0.6 V and -0.2 V versus Ag/AgCl. All films produced by pulses of 10 s duration were visible to the eye, copper colored, and survived a crude test called "the Scotch tape test", which involves sticking the scotch tape on the sample, then peeling off the tape and observing if the copper film peels off or not. Characterization by scanning electron microscopy (SEM)/energy dispersive X-ray (EDX) and X-ray photon spectroscopy (XPS) confirmed the presence of metallic Cu, with apparent dendritic growth. No sulfur impurity was observable by XPS or EDX. Kinetics measurements indicated that the Cu nucleation process in the sulfuric bath is slower than in the borate bath. In both baths, nucleation kinetics does not correspond to either instantaneous or progressive nucleation. Films deposited from 0.05 M CuSO4/H2SO4 solution at pH > 1 at -0.2 V exhibited poor adhesion and decreased Cu reduction current. In both borate and sulfate baths, small …

Comprising many airplanes, airports, aircrew, and employees, aviation industry is a large sector that is very vulnerable to attacks, whether it is from terrorists or criminals. Aviation history is fraught with examples of airport bombings, hijackings, and sabotage terrorist attacks. The most destructive of which is the tragedy of September 11, 2001, the cornerstone of today's aviation security policies. This study uses risk assessment tools to determine the dimensions of danger and threats against the aviation industry and addresses how vulnerable the aviation sector is. After vulnerabilities and threats are examined, possible impacts of attacks against the aviation security are discussed. This study also explores the pre and post September 11 policies that governments and policy makers develop to reduce risks in aviation sector. In addition, it discusses weaknesses and strengths of these policies which surfaced during the implementations. Finally, this study proposes some recommendations based on vulnerabilities and threats of aviation security.

This study evaluated the effectiveness of a procedure for teaching a caregiver to shape vocal language in a young child with autism. A multiple baseline design was employed to assess caregiver use of shaping procedures, child vocal language progress, and the social validity of the procedures. Following baseline and introductory sessions, the coach and caregiver reviewed video from the previous session and the coach gave descriptive feedback to the caregiver about her performance. Following the review of the videotaped segment, procedures to increase skills were selected and practiced. Rates of responsive opportunity arrangement, model presentation, responsive model delivery, and responsive event delivery, as well as the child's rate of requests, vocalizations, diversity of vocalizations, and social validity were measured. Data suggested that the procedures effectively taught the skill of shaping to a caregiver, which in turn seemed to produce increases in the child's vocal responding.

William Grant Still's musical achievements are legion. Because he was the first African American to break the color line in America's concert halls, Still earned the sobriquet "Dean of Negro Composers." Paradoxically, Still's reception suffers from this list of "firsts." The unintended consequence of cataloging his achievements venerates his position as an iconoclast while detracting critical attention from his music. Conversely, if we ignore the social context in which Still produced his music, we risk misinterpreting his compositional choices or trivializing the significance of his accomplishments prior to the Civil Rights Movement in America. Still's so-called symphonic trilogy-Africa, Symphony No. 1 ("Afro-American"), and Symphony No. 2 ("Song of a New Race")-is the subject of an intertextual analysis that demonstrates how extra-musical concerns, such as race, and musical elements can be brought into alignment. Chapter one discusses black music scholarship in general and Still scholarship in particular by tracing the development of black music historiography. The second chapter explores one of the various modes of inquiry used to study black music-intertextuality. The context for Still's self-titled racial and universal periods is the subject of chapter three. For the first time, arguments from both sides of the racial divide are reconsidered in …

Trained musicians cannot use the same breath process in daily living as for singing. Also, the normal breath cycle applied to speech is not efficient. Therefore, students who are learning to sing need to know proper breathing techniques. In this thesis, I will describe the breathing process and the correct way to breathe while singing, based on studies of four American pedagogues; Appleman, Reid, Vennard and Miller. To understand the breathing process for singing, it is necessary to study and understand the anatomical system and the mechanics of the respiratory system. Therefore, the first chapter contains anatomical system of breath management. Then, in the second chapter, the specific breath management techniques of four American pedagogues will be examined and compared. Three of them, Appelman, Vennard, and Miller, suggested some exercises in order to develop correct and efficient breathing habits.

Both the upper and lower temperature tolerances of red fluorescent protein transgenic zebra danios and wildtype zebra danios, Danio rerio, were significantly different via two different methods; however, all differences are small (< 1°C) and probably not ecologically important. The U.S. geographic distributions of both transgenic and wildtype zebra danios will not be restricted by their upper thermal tolerances, but will be limited to the southern and western portions of the U.S. by their lower thermal tolerances. Largemouth bass did not preferentially prey upon transgenic zebra danios compared to wildtype danios or wildtypes relative to a native fish. If transgenic or wildtype zebra danios are released into southern or western U.S. waters, it is possible they could be eliminated by predation.