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      • A factor analysis of the preferred learning styles of Industrial Technology and Engineering undergraduate students at North Carolina Agriculture and Technical State University and at Iowa State University

        Fazarro, Dominick E Iowa State University 2001 해외박사(DDOD)

        RANK : 215887

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        This study examined the learning style preferences of African American and European American undergraduate students in the Industrial Technology and Engineering programs at North Carolina A&T State University and Iowa State University. In this study, the independent variables employed were ethnicity, discipline, and the named institutions. The dependent variables were the 20 learning style preferences in the Productivity Environmental Survey (PEPS). Convenience sampling was used to collect 540 students. A factor analysis was used to determine the preferred learning styles for African American and European American students at each institution. In addition, the hypotheses were tested by the Box's M test in the discriminant analysis. The hypotheses were tested at an <italic>a priori</italic> level of .05 to ascertain significant differences in the factor structures or groups. The findings of the study concluded that: (1) there were differences in the factor loading profiles of African American and European American students at each institution, regardless of discipline, and (2) there were no differences between the factor loading profiles of Industrial Technology and Engineering students at either institution. Further analyses were generated to determine additional findings on African American and European American learning styles within their respective disciplines. The analyses consisted of examining if there were differences between factor loading profiles by combining both ethnic groups from each program, regardless of institution. The findings concluded that there were no differences between the factor loading profiles of the students enrolled in the two programs.

      • The Iowa Chemistry Education Alliance, ICEA: Process and product

        Burke, Kathleen Annette Iowa State University 2005 해외박사(DDOD)

        RANK : 215887

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        The Iowa Chemistry Education Alliance, ICEA, supported by Department of Education Star Schools funding (R203F5000198), was both a Process and a Product. The Process included: (a) Design and support of high school teacher training sessions that incorporated distance learning techniques, cooperative learning and guided inquiry strategies, and a constructivist, student-centered classroom focus; (b) Design and incorporation of eight supplemental learning modules, corresponding assessment rubrics, and supporting videotapes into the existing Iowa high school chemistry curriculum; (c) Adaptation of the learning modules throughout the course of the academic year while the units were being integrated into the existing curriculum; (d) Modification and final editing of the curriculum modules and videotapes. The Product consisted of eight supplemental ICEA learning modules with corresponding assessment rubrics, and three supporting videotapes. To integrate ICEA materials into the existing curriculum, students at high schools around the state of Iowa conducted cooperative, guided-inquiry laboratory exercises. Via electronic mail and Iowa's two-way interactive audio-video system, the Iowa Communications Network (ICN), they discussed strategies for experimentation and shared results obtained. Invited guest experts also visited student groups via the ICN. Teachers conducted regular biannual on-site face-to-face planning meetings. These were augmented and supported by weekly or biweekly "staff" meetings conducted via the ICN. From the original three hundred students in four central Iowa high schools (rural, urban, and suburban), by its third and fourth year, the Project evolved to include over 1500 students in twenty-five high schools statewide.

      • Speaking for themselves: The blind civil rights movement and the battle for the Iowa Braille School

        Miller, Brian Richard The University of Iowa 2013 해외박사(DDOD)

        RANK : 215886

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        In the 1960s, a group of blind activists, led by a charismatic young blind leader, attempted to take control of a residential school for the blind in Vinton, Iowa. The group of activists belonged to the Iowa Association of the Blind, the state affiliate of the National Federation of the Blind (NFB); the leader was Kenneth Jernigan, the first blind director of the Iowa Commission for the Blind; and the school was the Iowa Braille and Sight-Saving School (IBSSS), a venerable institution founded in the mid nineteenth century, and a cornerstone and iconic institution in the small northeast Iowa farming community of Vinton. Through the decade of the 1960s, Iowa was the central front of a civil rights movement, led by blind people determined to implement a new philosophy of blindness against what they perceived to be the entrenched power of sighted rehabilitation and education professionals. For ten years the Iowa Commission for the Blind and the Braille School were at odds with each other as both institutions fought for the hearts and minds of blind adults and children. Constant friction marked relations between the director of the Commission and the superintendent of the school, the former a blind activist administrator, the latter a sighted professional educator of the blind. The former, along with the organized blind whom he led, were not willing to let professionals speak for them, but insisted on speaking for themselves. The blind came to see the Braille School as the biggest obstacle to achieving their goals of advancing the civil rights of the blind in Iowa and beyond. The solution was to seek to take control of the school from the University Board of Regents and put it under the authority of the Commission for the Blind. The effort nearly succeeded, but the cost grew too high, and the battle for the Braille School would mark the beginning of the end of Jernigan's time in Iowa and set back the blind movement in ways not recognized until much later. Blind citizens in the 1940s and 50s faced widespread and entrenched discrimination. The ability to work, to own one's home, to travel independently on public transportation, to serve on trial juries, to vote, to adopt children, to raise families, were rights that no law guaranteed. The Architectual Barriers Act, Rehabilitation Act, Education of All Handicapped Children Act, and the Americans with Disabilities Act were all still decades in the future. It was the hope of Kenneth Jernigan and the blind whom he led to use the vocational rehabilitation program for the blind in Iowa to secure some of the rights the blind lacked, and to advance a new vision of what it meant to be blind.

      • Moments of impact: Race, injury, and football history in Iowa's collective memory (Jack Trice, Ozzie Simmons, Johnny Bright)

        Schultz, Jessica Lynn The University of Iowa 2005 해외박사(DDOD)

        RANK : 215886

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        In this dissertation I examine three incidents in which African-American men were seriously injured while playing football for Iowa universities between 1923 and 1951. More specifically, I am interested in the ways in which those injuries have been remembered, re-remembered and forgotten over time through various cultural artifacts. I use these sites of memory as points of entry for interrogating the processes of remembrance and the competing cultural narratives produced in and around the particular moments of impact. A stadium has been dedicated to the memory of Jack Trice, an Iowa State University athlete who died as a result of injuries sustained in a 1923 game against the University of Minnesota. Ozzie Simmons' 1934 injuries, on the other hand, remain relatively obscured from popular knowledge because of the Floyd of Rosedale trophy, for which the University of Iowa and the University of Minnesota football teams vie each year. Drake University's Johnny Bright was assaulted in a 1951 game against Oklahoma A. & M. College. A series of Pulitzer Prize-winning photographs secures remembrance of this episode. The meanings produced around these divergent artifacts speak to the cultural moments, contexts, and groups involved in their construction and interpretation. I consider each piece of material culture at issue in this project---the photographs, the stadium, and the trophy---for its role in the construction and maintenance of collective memories of the injuries the men sustained. These sites of memory are the media through which particular versions of the past are produced, conveyed and experienced. Because of their visibility and the authority with which they are vested, they represent public statements about elements of the past the universities choose to commemorate. Furthermore, the sites direct how the present should acknowledge that history and thus speak to the institutions' collective identities.

      • Evaluation of the surveillance of occupational injuries using a state trauma registry from a rural state

        Diallo, Ousmane The University of Iowa 2015 해외박사(DDOD)

        RANK : 215886

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        1. Introduction Injury is the fifth leading cause of mortality and morbidity among adults in Iowa. Work-related, or occupational injuries, constitute a substantial proportion of the injury burden in the US. The Bureau of Labor Statistics reports about 4.9 million occupational injuries annually in the US and over 50,000 injuries in Iowa. The aims of this study were to assess: 1) the burden of work-related injuries using an algorithm based on analysis of the external cause of injury (i.e., E-codes) combined with injury registry variables; 2) the magnitude of disability following an occupational injury by assessing Disability Adjusted Life Years and Discharge to Long Term Care; and 3) the burden of short-term disability one year after discharge from a Level I trauma center. 2. Methods/Approach: This research consisted of two observational studies of Iowa cases, ages 18-64, reported to the Iowa State Trauma Registry (STR) from January 1st 2007 to December 31st 2010. A retrospective cohort design was used to assess differences in mortality, length of stays, discharge disposition, disability risk and Disability-Adjusted Life Years (DALYs), and their associated risk factors, such as demographic characteristics, nature and severity of injury, pre-hospital and in hospital trauma care (i.e. transport, resuscitation, vascular and airway access, sedative and paralytic drug usage). A prospective follow-up study a cohort of cases discharged from the University of Iowa Resource Trauma Center was used to assess risk factors associated with short-term disabilities one year after discharge. The EuroQol-5 Dimension Questionnaire (EQ-5D) was mailed to the cohort cases, alive one year after discharge, to assess their overall health status and quality of life. The algorithm classified the study population into occupational, "Work-Likely" (WL), and non-work cases. Work-likely was defined based on work-related activities without pay, informal status or self-employed. The registry cases were matched to 2007-2011 death certificates to identify those who died after discharge and to estimate their survival time. Machine learning methods -- logistic regression and 10-fold cross validation were used to validate the algorithm. The survival time from injury to death was assessed using Kaplan Meier and Cox regression modeling. The Generalized Linear Modeling, including multinomial regression, was used to analyze the mean length of stay, the risk of discharge to long term care, DALYs and disability risk. 3. Results: From 2007 to 2010, there were individuals (ages 18-64) admitted (average 5,614 per year) as trauma cases to hospitals in Iowa. Based on the algorithm, 3,115 (14.0%) were classified as occupational, 847 (3.8%) as WL, and 18,454 (82.2%) were classified as non-work cases. There were notable differences in demographics, farm exposure, and rural residence. The 10-fold cross validation showed a 20% misclassification rate for occupational and 30% for WL. The area under the curve (AUC) of the receiver-operating characteristics (ROC) was measured at 0.66, which is indicative of poor discriminating effect. Overall, occupational and WL cases had better outcomes than non-work cases; they had lower mean lengths of stay and better survival rates, as detected by Kaplan-Meier and Cox regression models. WL had lower survival rates on the Kaplan Meier estimates but the Cox regression contrast statement didn't find any difference in survival between occupational and WL 30 days and one year after discharge. Multinomial regression showed major differences in the risk of discharge to long-term care (LTC) or acute care compared to discharge home between occupational, WL, and non-work cases WL cases had less risk of being discharged to LTC compared to non-work cases. There were no differences observed between occupational and non-work cases. When stratified by occupational status, the predictors of being discharged to Long term care or acute care were different for occupational, WL and non-work cases. For WL, care in Level I&II , injury type, triage mechanism, first ER systolic blood pressure were no longer good predictors of discharge to LTC compared to occupational or non-work cases. Mean DALYs were lower in the occupational (mean= 4.8; 95% CI: 4.7-4.8) and WL (mean 4.4; 95% CI: 4.4-4.7) cases than the non-work cases (mean= 5.2; 95% CI: 5.1-5.2). However, when all other risk factors were accounted for, the occupational cases had a 10% reduction in mean DALYs, and WL a 20% reduction in DALYs compared to non-work cases. When the disability was assessed separately by occupational status, the risk factors associated with disability were completely different. For WL cases, only injury location and ISS were significantly associated with DALYs. Conversely for occupational and non-work cases, injury type, coma, pre-hospital management (i.e. airway, paralytic drugs), and cause of injury were significantly associated with DALYs. The one-year follow-up questionnaire administered to 156 trauma survivors resulted in 72 (46%) valid responses. Of those who responded, 58 (81%) were occupational and 14 (19%) WL cases. Overall, from the EQ-5Dresults, 46% of the respondents reported a disability. There were no major differences in the prevalence of disability between occupational and WL injury cases. However, occupational injury cases were more likely to receive rehabilitation services. 4. Conclusions: This study demonstrated the utility of using trauma registry data in epidemiologic research to study occupational injury using a unique algorithm to include informal or self-employed workers. It identified a neglected group of workers subject to occupational injury and subsequent disability.

      • The student movement of the university: The rhetoric of the "idea of a university" and its transformation by "the student" (John Henry Newman, Abraham Flexner, Clark Kerr)

        Deifell, David Chapman The University of Iowa 2003 해외박사(DDOD)

        RANK : 215886

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        This dissertation considers the power of the idea of a university as a discourse that publicly justifies the practices of higher education and legitimizes its institutional self-preservation. By examining a history of public appeals by three representative leaders of higher education and then analyzing the public advocacy of the student New Left, I demonstrate the fundamental changes in interpretations of what academia is and attitudes about what it <italic> should be</italic>. By specifically accounting for the student's position as a constitutive feature of the lexicon about the university, the project explains the epistemological transformation in the idea of a university through radical arguments about student identity. Initially, I visit mid 19<super>th</super>-century Ireland where John Henry Cardinal Newman presented <italic>The Idea of a University</italic>. His lectures represent an originary manifestation for publicly justifying the Anglo-American university to a public. The contextual elements of his performance set a pattern for recognizing subsequent articulation of the idea of a university. Following Newman's argumentative topoi through two cultural-rhetorical descendants, Abraham Flexner's <italic>The Idea of a Modern University</italic> and Clark Kerr's <italic>The Uses of the University</italic>. In this ideological genealogy, we see a dominant progression of ideas and beliefs about the university and delineate consistent depictions that position students as subjects. From this hegemonic trajectory, we turn to its transformation by the student. The third chapter sojourns through two significant rhetorical events, the Greensboro Sit-ins and <italic>The Port Huron Statement</italic>. One led to the formation of the Student Nonviolent Coordinating Committee; the other defined the Students for a Democratic Society. Each served as distinct frameworks through which student radicals operated in the early sixties. Finally, the dissertation travels to Berkeley, California where we bear witness to the forging of the student movement through the rhetorical welding of Free Speech Movement. The student's subject position began to shift. Through free universities and teach-ins, the movement spread throughout the country. The articulation of student power enlivened students' sense of agency and emboldened them to put their bodies on the line. The corporeal and ideological controversy resulted in a movement of people's ideas and beliefs about the university.

      • "To preserve our heritage and our identity": The creation of the Chicano Indian American Student Union at the University of Iowa in 1971

        Solis, Sandra Ellen The University of Iowa 2011 해외박사(DDOD)

        RANK : 215886

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        The 1960s and 1970s represent a pivotal period in US history and there is a growing body of critical research into how the massive changes of the era (re)shaped institutions and individuals. This dissertation furthers that research by focusing its attention on the creation of the Chicano Indian American Student Union (CIASU) at The University of Iowa in 1971 from an Interdisciplinary perspective. CIASU as the subject of study offers a site that is rich in context and content; this dissertation examines the ways in which a small group of minority students was able to create an ethnically defined cultural center in the Midwest where none had existed prior and does this by looking at the intersection of ethnic identity and student activism. Covering the years 1968-1972, this work provides a "before" and "after" snapshot of life for Chicano/a and American Indian students at Iowa and does so utilizing only historical documents as a way of better understanding how much more research needs to be done. I explore the way in which various social movements such as the Anti-War Movement, the Chicano Movement, the American Indian Movement, the Women's Movement and the cause of the United Farm Workers influenced founding members Nancy V. "Rusty" Barcelo, Ruth Pushetonequa and Antonio Zavala within their Midwestern situatedness as ethnic beings. My dissertation draws from and builds upon the work of Gloria Anzaldua in Borderlands/La Frontera by interrogating the ways in which CIASU and its "House" acted as a self-defined "borderlands" for the Chicano/a and American Indian students. I examine the ways in which the idea of "borderlands" is not limited to any one geographical area but is one defined by context and necessity. Also interrogated is how performativity of ethnic identity worked as both cultural comfort and challenge to the students themselves as well as to the larger University community through the use of dress and language, especially "Spanglish". This dissertation examines the activism of CIASU within the University context and out in the Chicano/a and American Indian communities as liberatory practice and working to affect change. Specifically, presenting alternatives for minority communities through actions such as Pre-School classes and performances of El Teatro Zapata and Los Bailadores Zapatista and recruitment of Chicano/a and American Indian high school students. On campus, activism through publication is examined; El Laberinto as the in-house newsletter provides insight into the day-to-day concerns of the students and Nahuatzen , a literary magazine with a wider audience that focused on the larger political questions of the day, taking a broader view of the challenges of ethnic identity as a way to educate and inform. This dissertation views CIASU as a "bridge"; the students worked to create alliances between themselves and the larger University population as well as Chicano/a and American Indian communities. With the recent fortieth anniversary of CIASU it is evident the founding members' wish "to preserve our heritage and our identity" (Daily Iowan, November, 1970) continues and the organization they founded, now known as the Latino Native American Cultural Center, still serves the needs of Latino and American Indian students at Iowa.

      • Bayesian analysis of factors affecting crash frequency and severity during winter seasons in Iowa

        Shaheed, Mohammad Saad B Iowa State University 2014 해외박사(DDOD)

        RANK : 215871

        소속기관이 구독 중이 아닌 경우 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        Traffic safety during winter seasons has been a serious concern in Iowa as hundreds of people are injured on Iowa's highways each winter. As the goal of the state transportation agency is to ensure the mobility of road users without compromising the safety during winter periods, it is important to understand the factors affecting winter-weather crash frequency and occupant injury risk through quantitative prediction models. It is of utmost importance to identify locations prone to winter-weather crashes to utilize the limited resources efficiently for improving safety during winter conditions. This research intended to develop a systematic prioritization technique to identify winter-weather crash hotspots by using Empirical Bayes technique that addresses the serious limitations of the traditional methods to screen road networks for identifying high crash locations. This research also addresses the issue of hierarchical structure in the crash data by developing quantitative models to predict occupant injury risk for crashes occurring during winter seasons to obtain unbiased and accurate estimation of the parameters for better management of road safety during winter seasons. Along with developing site prioritization techniques for identifying roadway segments with potential for safety improvement through traditional statistical methods using raw crash data, Empirical Bayes technique is used to screen roadway segment through developing safety performance functions for winter-weather crashes. A novel approach is adopted to extract weather data from information reported by winter maintenance crew members to incorporate weather related factors in developing safety performance functions at network level for three roadway types in Iowa. Weather factors such as visibility, wind velocity, air temperature are found to have statistically significant effects on winter-weather crash frequency. The ranking of roadway segments based on Potential for Safety Improvement (PSI) by employing Empirical Bayes technique differs from the ranking produced by simple crash frequency. Safety Performance Functions developed in this research can be used to produce ranking based on PSI by using crash observations made over a specific number of years for winter-weather crashes. Models predicting occupant injury risk with binomial logit formulation are developed considering the hierarchical structure of the crash data in a Bayesian framework in this research for weather-related crashes, non-weather related crashes, and all crashes occurring during the four winter seasons (2008/09 to 2011/12) in Iowa. These models are developed using disaggregate crash data with occupants nested within crashes. High values of between-crash variance for the three models underscore the justification of considering the hierarchical nature of the crash data due to the natural crash data collection process. Factors related to occupants (gender, seating position, trap status, ejection status, airbag deployment, safety equipment used) had statistically significant effects on occupant injury risk for all the models. Weather-related variables such as visibility and air temperature were found significant predictors of all crashes and weather-related crashes during the winter seasons. The variable representing road surface condition is also found to be a significant factor in all three models developed to predict occupant injury risk during the winter seasons.

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