There were two primary goals in this investigation. The first goal was to determine if results from field tests (time-trials and a Conconi incremental test) are related to performance in mass-start long-distance bicycle races. The second goal was to investigate inter-relationships among field test variables. The testing variables measured were critical velocity (CV), Conconi anaerobic threshold (AT) velocity, 4mM AT velocity, fatigue index, peak blood lactate, and anaerobic work capacity. Participants were USCF 30 category 1 through 5 cyclists. Participants performed one 20.75 km and two 10.37 km all-out tests in the field. They also performed an incremental test. The tests were performed at one-week intervals. Results from the field tests were compared to recent mass-start racing performance. Results indicated that Conconi AT velocity was related to performance in a 161-km race. There was also a relationship between 4mM AT velocity and CV and between Conconi AT velocity and 4mM AT velocity. It was concluded that field tests might provide information about performance ability in mass-start long-distance bicycle races.

This thesis studies the style of Native American portrait photographs of William S. Soule (1836-1908), John K. Hillers (1834-1925), and William E. Irwin (1871-1935), who worked in Oklahoma from 1869 to 1904. The examination of the three men's work revealed that each artist had different motivations for creating Native American portrait photographs, and a result, used a distinct style. However, despite the individual artistic styles, each artist conformed to Native American stereotypes common during the nineteenth-century. The thesis includes a discussion of the history of the area, photographer biographies, a stylistic analysis of the photographs, and how the images fit into American Indian stereotypes.

The primary purpose of the study was to investigate stakeholders' opinions concerning campus laboratory school program quality in three areas: (1) quality of teacher education, (2) research, and (3) childcare. There were 653 participants in the study: 246 parents whose children were enrolled in laboratory schools, 200 pre-service students who were taking early childhood or child development classes, and 207 faculty who were associated with campus laboratory schools. The study participants came from 122 campus children centers in the United States. These campus centers were members of either the National Coalition for Campus Children's Centers (NCCCC) or the National Organization of Laboratory Schools (NOLS). The first three research questions investigated whether parents, students, and faculty were satisfied with program quality. A one-way analysis of variance indicated a statistically significant mean difference between the three groups. The parents had a higher mean level of program quality satisfaction than students and faculty. The last three research questions investigated whether parents, students, and faculty supported the ongoing existence of campus laboratory school programs. Opinions were scaled from 1=not ever to 5=definitely. The overall mean ratings for Parents (4.54), students (4.18), and faculty (4.07) indicated that they supported the ongoing existence of campus laboratory …

Assessment of aquatic plant selection by waterfowl has been conducted during the winters of 1997-2000 on 49 0.2-0.79 ha research ponds in north central Texas. Ponds were categorized by dominant plant species into eight habitat types. Census with waterfowl species identification were performed to investigate impacts of aquatic vegetation and water depth on waterfowl. Eighteen waterfowl species were observed. Peak migration occurred in late December/early January. Mixed native ponds and mixed native/hydrilla ponds were the most frequently selected habitat types. The study included correlation analysis between pond water levels and waterfowl use. Full ponds received greatest use followed by half full ponds, while almost empty ponds received minimal use. Time activity budgets were conducted on waterfowl utilizing mixed native and hydrilla ponds to compare waterfowl time partitioning on native aquatic vegetation versus hydrilla. Although only minor differences were found in time budgets, social status appears to be strongly related to habitat selection. Ducks on native ponds were paired (86%), conversely no ducks on hydrilla ponds were paired. Hydrilla pond although frequently utilized, were populated by lower status birds mostly single hens.

A national survey was conducted to assess student perceptions of the helpfulness of specific instructional development factors in a distance education print-based program. Participants were all students who had successfully completed at least one distance education correspondence course with Global University or were currently enrolled in their first course. Instructional development factors studied included lesson openers, lesson outlines, lesson artwork, written objectives, amount of information presented before a study question is asked, typographical features, graphic art, study questions, answers to study questions, self tests, and unit progress evaluations. Basic demographic information was collected and survey respondents located their perceptions of instructional development factor helpfulness both on a Likert scale and on a rank-order scale. Respondents also were asked for comments on the instructional development factors studied. Differences among respondent groups were examined. Major findings include a tiered ranking by all groups showing formative evaluation factors to be the most helpful, content organization and presentation factors next most helpful, and visual enhancement features (graphic art, typographical design) the least helpful. Overall, perceptions of the facilitative nature of the instructional development factors were similar among most groups. Older students seem to focus more on organization while younger students exhibit a balance between …

This study examined the career paths of women administrators serving as chief academic officers in Christian colleges and universities which belong to the Council for Christian Colleges and Universities (CCCU). The CCCU is a professional association of evangelical Christian institutions dedicated to integrating faith and learning. The exploration included each administrator's demographic information; her early, adolescent, college, and graduate school experiences; early vocational experiences; the effect of marriage and motherhood on her career; critical factors she identified as important in achieving her current position; and the importance of spiritual convictions or Christian faith in career decision making. Sixteen of the eighteen identified women holding the rank of chief academic officer agreed to participate in the study. The typical woman administrator was 50, married, and the mother of one or more children. She most likely had received her education in the humanities, with the terminal degree of choice being a Ph.D. She had served at her current institution for more than five years, but in her current administrative position for less than five. As an adolescent she excelled in the humanities, less so in math and science, and was involved in many extracurricular activities, including music endeavors, leadership, and her local …

The Electoral College and Jacksonian Democracy are two subjects that have been studied extensively. Taken together, however, little has been written on how the method of choosing presidential electors during the Age of Jackson changed. Although many historians have written on the development of political parties and the increase in voter participation during this time, none have focused on how politicians sought to use the method of selecting electors to further party development in the country. Between 1824 and 1832 twelve states changed their methods of choosing electors. In almost every case, the reason for changing methods was largely political but was promoted in terms of advancing democracy. A careful study of the movement toward selecting electors on a general ticket shows that political considerations in terms of party and/or state power were much more important than promoting democratic ideals. Despite the presence of a few true reformers who consistently pushed for a constitutional amendment guaranteeing that all states used the same method, the conclusion must be that politics and party demanded a change. This study relies heavily on legislative records at both the state and national level and newspapers throughout t the country from the period. Beginning with a …

The Industrial Laser is firmly established in metalcutting as the tool of choice for many applications. The elevator division of Montgomery KONE Inc., in an effort to move towards quality, ontime, complete deliveries and 100% customer satisfaction, decided to invest in new equipment to improve manufacturing processes. A huge investment is proposed for a laser-cutting machine. It is the responsibility of Manufacturing Engineering to direct the management by justifying its benefits, which includes payback time and financial gains. Factors such as common line cutting, automated material handling system and cutting time were involved in justification of the initial cost of a laser-cutting machine. Comparative statistics on appropriate factors accurately determine and justify the initial cost of a laser-cutting machine.

GABAA receptor binding is transiently increased in rat whisker barrels during the second postnatal week, at a time when neurons in the developing rat cortex are vulnerable to excitotoxic effects. To test whether these GABAA receptors might serve to protect neurons from excessive excitatory input, polymer implants containing the GABAA receptor antagonist bicuculline were placed over barrel cortex for a 4-day period in young (postnatal days 8 - 12) and adult rats. In the cortex of young, but not adult rats, the chronic blockade of GABAA receptors resulted in substantial tissue loss and neuron loss. The greater loss of neurons in young rats supports the hypothesis that a high density of GABAA receptors protects neurons from excessive excitatory input during a sensitive period in development.

This study utilized GIS and statistical methods to map the spatial variability of nitrate and related groundwater constituents in 30 counties above the Seymour Aquifer, analyze temporal patterns of nitrate pollution, identify probable sources of pollution, and recommend water development strategies to minimize exposure to nitrate and reduce future aquifer contamination. Nitrate concentrations in excess of 44 mg/L (US EPA limit) were commonly observed in the Seymour Aquifer region, especially in the central agricultural belt. Data indicated that this is an ongoing problem in the Seymour Aquifer and that agricultural activity and rural septic systems are the likely sources of the nitrate. Inconclusive results emphasized the need for a more comprehensive spatial and temporal water quality monitoring.

This study examines the effects of training in two yoked learning channels (hearsee/say and hearsee/write) on the acquisition, generalization and retention of learning. Four fifth-grade participants were taught the lower-case letters of the Greek alphabet. Twelve letters were taught in the hearsee/say channel and twelve letters taught in the hearsee/write channel for equal amounts of time. The see/say channel reached higher frequencies at the end of training and showed higher acquisition celerations than the see/write channel. However, the see/write channel showed higher accuracy and retention than the see/say channel. The see/write channel also showed greater generalization across learning channels including the see/say, think/say, think/write and see-name/draw-symbol.

Ninety elementary public school teachers were surveyed to find out where they obtained their teaching ideas. Seven popular elementary-level teaching periodicals, dated 1989-1999, were analyzed for aging-related content, and compared with 27 of the National Academy for Teaching and Learning about Aging (NATLA) aspects of aging recommended for students' learning. Results indicate that public elementary teachers obtain their teaching ideas from various places: teaching institutes or workshops; other teachers; ideas or lessons they develop themselves; and teaching periodicals. A large percentage obtain lesson ideas from teaching periodicals that they browse or read. This finding may assist NATLA in making recommendations to particular editorial boards. Surprisingly, few teachers obtain their teaching ideas from state and local curricular mandates. When the periodical issues were analyzed, aging-related content was categorized in four ways: informational articles with selected teaching or learning activities; articles describing intergenerational programs or activities; book reviews with selected learning activities; and book review titles mentioning older adult characters. Category totals among the 7 periodicals were highest in book review titles mentioning older adult characters and book reviews with selected learning activities. The content was compared to NATLA's recommendations for students' learning. The findings were not significant. The aging aspect that …

This paper examines the speech-based musical realization of "The Surface" and its attempt to assimilate the poem at the structural, sonic, and expressive level. The software and analysis/re-synthesis techniques used to create timbres heard in the composition are discussed in detail. In addition to technical and structural issues, the common elements of the two art forms are considered within the context of the digital domain.

The purpose of this dissertation is to investigate the thermochemical properties of nonelectrolyte solutes dissolved in ternary solvent mixtures, and to develop mathematical expressions for predicting and describing behavior in the solvent mixtures. Forty-five ternary solvent systems were studied containing an ether (Methyl tert-butyl ether, Dibutyl ether, or 1,4-Dioxane), an alcohol (1-Propanol, 2-Propanol, 1-Butanol, 2-Butanol, or 2-Methyl-1-propanol), and an alkane (Cyclohexane, Heptane, or 2,2,4-Trimethylpentane) cosolvents. The Combined NIBS (Nearly Ideal Binary Solvent)/Redlich-Kister equation was used to assess the experimental data. The average percent deviation between predicted and observed values was less than ± 2 per cent error, documenting that this model provides a fairly accurate description of the observed solubility behavior. In addition, Mobile Order theory, the Kretschmer-Wiebe model, and the Mecke-Kempter model were extended to ternary solvent mixtures containing an alcohol (or an alkoxyalcohol) and alkane cosolvents. Expressions derived from Mobile Order theory predicted the experimental mole fraction solubility of anthracene in ternary alcohol + alkane + alkane mixtures to within ± 5.8%, in ternary alcohol + alcohol + alkane mixtures to within ± 4.0%, and in ternary alcohol + alcohol + alcohol mixtures to within ± 3.6%. In comparison, expressions derived from the Kretschmer-Wiebe model and the Mecke-Kempter …