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This study is a multi-method exploratory quantitative and qualitative examination of the degree to which students produce, share, and learn vocabulary and cooperative skills as they carry out three types of individually and cooperatively structured art-based tasks regarding carefully selected and sequenced artworks. The artwork was selected from, and the tasks were adapted from Visual Thinking Strategies, an approach for teaching art appreciated and critical thinking skills. There has been little research that reports the degree of vocabulary through the use of images in general, very little research on cooperative learning and language learning, and an extremely limited amount of research on cooperative learning carried out in the field of foreign language learning through the use of artwork in the Japanese context. This study aims to fill these gaps. There were five main purposes of this study. The first purpose was to explore the range of vocabulary elicited through the cooperatively structured art-based tasks regarding the artworks. The second purpose was to measure students’ learning and use of two cooperative skills as they carried out the art-based tasks. The third purpose was to examine the implementation of the art-based tasks adapted for language learning in the Japanese college context investigated in this study. The fourth purpose was to explore the degree to which vocabulary is produced, shared, and learned in the adapted art-based tasks. The fifth and final purpose was a qualitative and quantitative examination of students’ attitudes towards the art tasks and towards working cooperatively in groups. To answer questions based on the purposes listed above, AntWordProfiler was used to analyze students’ production of vocabulary as they wrote their individual comments about the artworks and the RANGE feature of AntWordProfiler was used to analyze the frequency of particular vocabulary within and across groups in the group activities. The degree of learning was measured through pretests and posttests adapted from the Vocabulary Knowledge Scale. Finally an ANOVA was used to compare the vocabulary learned in the individual and cooperative drawing tasks following a Latin Square design. The qualitative study involved examination of many sources of data, including the worksheets students filled out as they carried out the art-based tasks, the artwork they drew, and audio recordings. Finally, a combined qualitative and qualitative survey at the end of the semester allowed an exploration of students’ opinions regarding art-based tasks, working and learning in groups, and the class as a whole. The results to the 12 research questions showed very little predictability in the specific vocabulary elicited, but did find patterns in the frequency of vocabulary elicited through the artworks, especially in terms of the percentage of vocabulary elicited. Students showed a significant increase in vocabulary knowledge between the pretests and posttests on all tasks, although there was a significant difference in vocabulary learned by students who did the drawing task individually for one artwork over those who drew that artwork in cooperative groups. A frequency analysis of student self-reports of their use of the cooperative skills they were taught and an examination of audio recordings showed they used and processed their use of the skills in ways that cooperative research suggests are beneficial for learning. Finally, the results of the quantitative and qualitative course-final survey showed that students had generally positive attitudes towards both the learning vocabulary using artwork and working in groups and that students enjoyed interacting and learning from fellow group members. There were some negative views of the cooperative tasks that need to be addressed in future use of these tasks, primarily making students aware of the reasoning behind the way they were being asked to carry out the tasks. The findings showed teachers can use artwork with confidence that students will learn vocabulary and that students are generally positive to the cooperatively structured art-based tasks. Future research needs to be carried out with other artwork, in different contexts, with students at different levels of language ability, and with additional art-based tasks. / Teaching & Learning

This thesis describes the introduction into Canada, from the United States, of the Cooperative Wage Study (CWS) - a scheme of joint union-management job evaluation for the removal of wage rate inequities in the steel industry. it is especially concerned with the impact of the CWS programme upon the structure of industrial relations in this industry, and with the aims and objectives of both the union and management regarding it. A comparison of the origins of the plan in both the U.S.A. and Canada is made and a survey of the development of the programme carried out in two basic steel plants in Ontario. An evaluation of the results is attempted in the light of the original objectives, together with an assessment of the importance of CWS as an industrial relations technique. / Thesis / Master of Arts (MA)

Doctor of Philosophy / Self-driving cars promise a future with safer roads and reduced traffic incidents and fatalities. This future hinges on the car's accurate understanding of its surrounding environment; however, the reliability of the algorithms that form this perception is not always guaranteed and adverse traffic and environmental conditions can significantly diminish the performance of these algorithms. To solve this problem, this research builds on the idea that enabling cars to share and exchange information via communication allows them to extend the range and quality of their perception beyond their capability. To that end, this research formulates a robust and flexible framework for cooperative perception, explores how connected vehicles can learn to collaborate to improve their perception, and introduces an affordable, experimental vehicle platform for connected autonomy research.

Residential camping has long been used as a tool to reach and teach educational concepts to youth. Since the founding of the first organized residential camp in 1823 at Round Hill School's Summer Camp in Massachusetts, private and public organizations have used camping as a means to teach youth their respective missions and goals. Although a relative newcomer in the camping business when compared to other agencies and groups, 4-H has been involved in camping since the first county camp was conducted in 1915. Virginia has long been in the business of 4-H camping, reaching thousands of youth throughout the years on an annual basis. Now, ranked third nationally in total numbers of youth attending 4-H camping on an annual basis, the 4-H mission "...assisting youth, and adults working with those youth, to gain additional knowledge, life skills, and attitudes that further their development as self-directing, contributing, and productive members of society" continues to be carried out through the residential camping program. The purpose of this dissertation is to describe, record and analyze the concept that provided the foundation for the Virginia 4-H camping program becoming a reality of the 4-H educational centers. It includes the early history of the camping movement in the United States, the beginnings of the 4-H club program in the United States and Virginia, and 4-H involvement in reaching and involving youth audiences through camping programs. The population for this study consisted of early pioneers in the 4-H camping program representing Virginia Cooperative Extension administrators and extension agents, camp staffs, and campers from both white and African-American camping programs, as separate 4-H camping programs were conducted. A systematic document research and structured interviews of the early pioneers was conducted to reach defensible conclusions about the establishment, operation, and purpose of the 4- H camping movement in Virginia. The outcomes of this study are fourfold. First, the study serves to document the organized camping movement in the United States and the beginnings of 4-H. Second, the study explores the early beginnings of the 4-H camping movement in the country with the national 4-H camping movement. Third, the study examined the persons, events, founding and early development of the 4-H camping program in Virginia, including the separate white and African-American camping programs for Whites and African-Americans. Fourth, the study documented the history of Virginia's six 4-H educational centers. The study endeavors to contribute to the body of knowledge concerning the history of the 4-H movement in Virginia. / Ph. D.

Increasing demands for accountability in educational programming have resulted in more frequent calls for program evaluation activity in educational organizations. Many organizations include conducting program evaluations as part of the job responsibilities of program staff. Cooperative Extension is a national system offering non-formal educational programs through land grant universities. Many Extension services require non-formal educational program evaluations be conducted by its locally-based educators. Research on evaluation practice has focused primarily on the evaluation efforts of professional, external evaluators. The evaluation work of program staff that have many responsibilities including program evaluation has received little attention. This study examined how non-formal educators in Cooperative Extension use the results of their program evaluation efforts and what factors influence that use. A conceptual framework adapted from the evaluation use literature guides the examination of how evaluation characteristics, organizational characteristics and stakeholder involvement influence four types of evaluation use; instrumental use, conceptual use, persuasive use and process use. Factor analysis indicates ten types of evaluation use practiced by non-formal educators. Of the variables examined, stakeholder involvement is most influential followed by evaluation characteristics and organizational characteristics. The research implications from the study include empirical confirmation of the framework developed by previous researchers as well as the need for further exploration of potentially influencing factors. Practical implications include delineating accountability and program improvement tasks within Extension in order to improve the results of both. There is some evidence that evaluation capacity building efforts may be increasing instrumental use by educators evaluating their own programs. Non-formal educational organizations are encouraged to involve stakeholders in all levels of evaluation work as one means to increase use of evaluation findings. / Ph. D.

For several decades, a growing realization has evolved that a single entity often cannot address complex issues. Collaboration has been touted as an effective approach to addressing such issues and is generally defined as multiple parties jointly identifying problems, developing a shared vision for addressing those problems, and sharing resources and responsibilities for a determined solution. In spite of the growing literature regarding collaboration, the predominant focus has been on advocacy, leaving a void in the literature concerning the processes and behaviors involved in establishing community collaboration. In essence, the importance of collaboration is widely recognized; how to collaborate is not as noted. Therefore, it is essential to examine the experience of community collaboration. The purpose of this study was to investigate a collaborative community experience in the context of extension education for children, youth, and families at risk in four localities in Virginia. The following research questions were addressed: a) What has been the nature and experience of collaboration for Extension Leadership councils (ELCs) involved with children, youth, and families at risk (CYFAR) projects; b) What has contributed to successful collaboration in Extension education with the CYFAR projects; and c) What have been the challenges to collaboration for the CYFAR projects? The qualitative case study design utilized in-depth face-to-face interviews with seventeen community representatives in the selected localities involved in the experience. The interviews were tape-recorded and transcriptions were analyzed to determine themes, patterns, and common ways of thinking. Findings, which revealed that ELCs were primarily involved in situation analysis, illuminated the following perceived contributions to successful collaboration: having a process for involvement, addressing a need, commitment of those involved, leadership, and paid staff. Challenges to collaboration were identified as lack of time to commit, lack of understanding of collaboration, and pre-existing ways of thinking and acting. The results have implications for Cooperative Extension understanding how ELC involvement can occur in programming and the collaborative nature of their educational process with the community. The findings will also contribute to human service providers' understanding of contributions and challenges to collaboration and to the emerging body of knowledge on collaboration. / Ph. D.

Keeping students engaged in the learning process is a challenge faced by most teachers. Instituting a bell schedule that requires them to make changes in their traditional instructional delivery may increase that challenge exponentially. The benefit of an extended period, also known as the block schedule, is that it permits the opportunity for teachers to alter their instruction with learning experiences that require more than 55 minutes by using engaging student-centered instruction. One reality of teaching on a block schedule is that many teachers lack the knowledge of effective strategies and rely on instructional devices they employed on a shorter time period. The purpose behind this work is to create a manual that demonstrates engaging student centered strategies and becomes a resource for teachers who are searching for instructional models to utilize in the block schedule. It does this in part by featuring actual hands-on strategies from three instructional models that can be readily used by classroom teachers. With the generative information about the models and activities that is provided in the manual, teachers are encouraged to create their own activities. Finally, the work provides solicited teacher feedback on the utility of the manual. / Ed. D.

The demand for access to information when and where you need has motivated the transition of wireless communications from a fixed infrastructure based cellular communications technology to a more pervasive adhoc wireless networking technology. Challenges still remain in wireless adhoc networks in terms of meeting higher capacity demands, improved reliability and longer connectivity before it becomes a viable widespread commercial technology. Present day wireless mesh networking uses node-to-node serial multi-hop communication to convey information from source to destination in the network. The performance of such a network depends on finding the best possible route between the source and destination nodes. However the end-to-end performance can only be as good as the weakest link within a chosen route. Unlike wired networks, the quality of point-to-point links in a wireless mesh network is subject to random fluctuations. This adversely affects the performance resulting in poor throughput and poor energy efficiency. In recent years, a new paradigm for communication called cooperative communications has been proposed for which initial information theoretic studies have shown the potential for improvements in capacity over traditional multi-hop wireless networks. Cooperative communication involves exploiting the broadcast nature of the wireless medium to form virtual antenna arrays out of independent single-antenna network nodes for transmission. In this research we explore the fundamental performance limits of cooperative communication under more practical operating scenarios. Specifically we provide a framework for computing the outage and ergodic capacities of non identical distributed MIMO links, study the effect of time synchronization error on system performance, analyze the end-to-end average bit error rate (ABER) performance under imperfect relaying, and study range extension and energy efficiency offered by the system when compared to a traditional system. / Ph. D.

There were an estimated 11.1% of households experiencing food insecurity in the U.S. in 2018, meaning that they did not have the adequate resources to access safe, nutritious food at some point in the year. In order to support people experiencing food insecurity and related-hunger, national organizations, regional food banks, and local programs operate to recover, organize, and distribute the food available to them. Food recovery work falls into a regulatory grey-area. Should anyone consuming donated food become ill, the food handlers would not be criminally or civilly liable if they distributed it in good faith. There are no federal regulations covering food handling in food recovery, though some states do have such regulations. As a result, safe food handling guidance, education, and training is offered through organized networks and Cooperative Extension. Participating in educational programs increases safe food handling knowledge, however volunteers and employees in food recovery organizations have also been observed to unsafely handle food. Additionally, these resources can be limited in their scope and some are only accessible through membership in pre-existing networks such as Feeding America. The purpose of this work is to further document how food is handled in food recovery and compliment that by collecting the experiences and perceptions of these food handlers as well as Cooperative Extension educators who support them. This work utilized a mixed-methods approach to quantify behaviors and experiences, which compliments qualitatively collected contextual information. Food handlers serving with a university-based student food recovery program, which works to distribute unserved and unsold food from on-campus dining centers, were observed improperly washing their hands, inconsistently keeping records, and using unclean or otherwise contaminated equipment. These behaviors could be addressed through rolespecific education representing their unique operations. Virginia Cooperative Extension (VCE) educators were used as a case study to measure their experiences when supporting food recovery, with 41% of respondents having previously supporting an organization or program. Topics covered ranged from safe food handling, network leadership, financial planning, and farming/gardening. VCE educators expressed a sense of altruism when supporting food recovery organizations, but also experienced challenges such as not having enough time to fully engage or the organization not having adequate equipment to enact their support. VCE educators who had not previously supported these organizations expressed wanting to learn more about food recovery work and how VCE can support them. Employees of food banks believe current food safety education could be improved by offering role-specific information in customizable formats so the food handlers can translate their knowledge into action. Future education should also focus on problemsolving, so food handlers feel empowered to react to expected challenges. Lastly, to account for challenges experienced while conducting this research, future projects within the context of food recovery should consider the limited time available of potential participants, offer compensation for their participation, and maximize pre-existing networks when connecting with them. / Doctor of Philosophy / There were an estimated 11.1% of households experiencing food insecurity in the U.S. in 2018, meaning that they did not have the adequate resources to access safe, nutritious food at some point in the past year. In order to support people experiencing food insecurity and related-hunger, national organizations, regional food banks, and local programs operate to recover, organize, and distribute the food available to them. Food recovery work falls into a regulatory grey-area. Food handlers are not criminally or civilly liable should anyone become ill as a result of consuming food when it is donated in good faith, and guidance in the form of food handling regulations for food recovery varies from state-to-state and is not addressed federally. As a result, safe food handling education and training is offered through organized networks and Cooperative Extension. Participating in educational programs increases safe food handling knowledge, however volunteers and employees in food recovery organizations have also been observed to unsafely handle food. Additionally, these resources can be limited in their scope with some only accessible through membership in pre-existing networks. The purpose of this work is to further document how food is handled in food recovery, which will complement the collection of experiences and perceptions of food handlers and Virginia Cooperative Extension (VCE) educators who support them. Volunteers serving with a university-based student food recovery program, which works to distribute unserved and unsold food from their on-campus dining centers, exhibited a combination of safe and unsafe food handling behaviors which could be addressed through role-specific education representing their unique operations. VCE educators expressed a sense of altruism when supporting food recovery organizations across a range of topics, however they also expressed wanting to know more about their operations and how VCE can support them. Employees of food banks believe current food safety education could be improved by offering role-specific information in a variety of formats paired so the food handlers can translate their knowledge into action. Lastly, to account for challenges experienced while conducting this research, future projects within the context of food recovery should consider limited time potential participants have to serve as well as maximize preexisting networks when recruiting them.