776 research outputs found

    Lords of Retinue: Middle English Romance and Noblemen in Need

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    This study shows how medieval poets adapted the romance genre to address contemporary concerns about the regulation and exercise of noble power. Analyzing romances alongside chivalric chronicles, medieval didactic texts, and modern historical studies of the English nobility, this dissertation explores the ideals and practices of chivalry in medieval England from the reign of Edward I (1272-1307) through the deposition of Richard II (1399). Chapters on Guy of Warwick (c. 1300), Ywain and Gawain (mid-fourteenth century), and Chaucer’s Knight’s Tale (c. 1388) argue that Middle English poets promote ideals of both prowess and lordship in their narratives of chivalric heroism

    Using regression analysis to assist audit judgments in substantive testing

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    https://egrove.olemiss.edu/dl_proceedings/1088/thumbnail.jp

    The research and development of in situ non-intrusive optical and temperature diagnostics in an internal combustion engine

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    Novel instrumentation has been developed and evaluated in a low-cost, purpose built, single-cylinder internal combustion engine test facility designed to simulate many of the combustion features that are common between an internal combustion engine, a gas turbine combustor and a steel rolling furnace. High bandwidth in-cylinder surface temperature measurements are demonstrated with a new application of platinum thin film resistance thermometers. These gauges are exposed to the combustion gases and are mounted to both the cylinder head and piston. It is shown that calculation of flame speed, determination of heat flux levels and flame structure observation are possible. Fibre optic probes capable of high frequency spectral measurements of the combustion emission are presented. The spectral measurements are shown to complement the temperature measurement by being able to differentiate the flame front from the general combustion emission and hot by-products. Beyond this, other optical techniques have been explored in order to gain an understanding of the flame front and flow within the combustion chamber. The novel spark plug described is capable of combustion imaging and its application to in-cylinder PIV and flow visualisation is demonstrated. Combustion modelling has been undertaken using published engine models and a comparison between measured and predicted values of pressure and heat flux is provided as a validation of the in-cylinder heat flux measurements

    Inquiry, Experience, and Exploration: Rebooting the Research Project and Making Connections Beyond the English Classroom

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    This article describes our efforts to revitalize the research project in the English Language Arts classroom, engage students in the exploration of topics of organic interest, and create opportunities for them to share their findings with authentic audiences

    Confronting Challenges at the Intersection of Rurality, Place, and Teacher Preparation: Improving Efforts in Teacher Education to Staff Rural Schools

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    Recruiting and retaining highly qualified teachers in rural schools is a persistent struggle in many countries, including the U.S. Salient challenges related to poverty, geographic isolation, low teacher salaries, and a lack of community amenities seem to trump perks of living in rural communities. Recognizing this issue as a complex and hard to solve fixture in the composition of rural communities, we sought to understand how teacher preparation programs might better prepare preservice teachers for successful student teaching placements and, ideally, eventual careers in rural schools. In this study, we explore teacher candidatesΓÇÖ perceptions of rurality while examining how specific theory, pedagogy, and practice influence their feelings of preparedness for working in a rural school. Using pre- and post- questionnaire data, classroom observations, and reflections, we assess the effectiveness of deliberate efforts in our teacher preparation program to increase readiness for rural teaching. In our analysis and discussion, we draw on critical and sociocultural theories to understand the experiences of a cohort of teacher candidates as they explore personal histories, the importance of place, expectations, and teaching strategies for rural contexts. While rural education researchers have long lamented the struggle to recruit and retain teachers, there is relatively little known about intentional efforts to prepare teachers specifically for rural classrooms. We conclude our article with recommendations for enhancing teacher preparation programs in ways that might result in significant progress toward the goal of staffing rural schools with the highly skilled teachers all students deserve

    Emerging Dialogic Structures in Education Reform: An analysis of Urban Teachers’ Online Compositions

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    This paper contextualizes contemporary urban teachers’ online dissent in public discussions of education reform in relation to past educational crisis narratives to interpret recent shifts in the structure of education reform dialogue in the United States. It does so by examining the form and content of compositions in which teachers respond to education reform. The analysis is intended to describe the digitally mediated roles teachers are asserting in a complex public debate over the future of education in the United States. The structure and content of education reform discourse has often cast teachers in static roles, which inhibits their active participation in discussions of educational policy. Using Mikhail Bakhtin’s position that language choices serve to stifle and/or reinvigorate dialogue, we examine contributions to online discussions and debate composed ostensibly by urban teachers in response to dominant discourses. The data were analyzed with respect to discursive choices and grouped subsequently as themed arguments and rhetorical moves. We argue that teachers’ strategic responses to education reform challenge stifling truisms that seek to suspend discussion of all other factors besides teacher quality. Teachers’ critical digital compositions thus re-create critical, multi-voiced conversations in place of monologues about school improvement. The online, public compositions point to the dynamic structure of reform discourse that has the potential to benefit those currently faulted for a variety of social problems. Nurturing and even exploiting the dynamic potential of educational reform discourse can create opportunities for teachers, policymakers, and educational researchers to mutually inform one another’s shared interest in educational improvement

    Research Evaluation of the City of Columbus Response to the 2020 Summer Protests

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    This report provides the results of an eight-month research study evaluating how the City of Columbus, Ohio, inclusive of elected officials and the Columbus Division of Police (CPD), managed the protests in Columbus from May 28 through July 19, 2020. The purpose of the research study was three-fold: document interactions between community members and law enforcement personnel as a part of the protests; evaluate the City of Columbus's preparation for and response to the protests; and generate research-informed recommendations about how to improve the performance of the City of Columbus in preparing for and responding to future protests.

    Increasing the effectiveness of coach education: evidence of a parallel process

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    The purpose of this study was to use the results of an exploratory case study to discuss the design and delivery of formal coach education pathways. Nine coaches completed qualitative and quantitative feedback on a formal transformational leadership training program. The theme that was consistently being presented by coaches was the need for learning to be situated within practical demonstrations and discussions where the coach learner and coach educator work collaboratively to facilitate understanding of the applications of program content to coaching practice. These results have been discussed in the light of the parallel processes that are evident in coach education. The relationship dynamics between athlete and coach are paralleled in the relationship between coach learner and coach educator. Formalising the parallel process in coach education is put forward as a conceptually sound approach to facilitate reflection in coaching practitioners through the use of practical demonstrations

    Redesigned and chemically-modified hammerhead ribozymes with improved activity and serum stability

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    BACKGROUND: Hammerhead ribozymes are RNA-based molecules which bind and cleave other RNAs specifically. As such they have potential as laboratory reagents, diagnostics and therapeutics. Despite having been extensively studied for 15 years or so, their wide application is hampered by their instability in biological media, and by the poor translation of cleavage studies on short substrates to long RNA molecules. This work describes a systematic study aimed at addressing these two issues. RESULTS: A series of hammerhead ribozyme derivatives, varying in their hybridising arm length and size of helix II, were tested in vitro for cleavage of RNA derived from the carbamoyl phosphate synthetase II gene of Plasmodium falciparum. Against a 550-nt transcript the most efficient (t(1/2 )= 26 seconds) was a miniribozyme with helix II reduced to a single G-C base pair and with twelve nucleotides in each hybridising arm. Miniribozymes of this general design were targeted to three further sites, and they demonstrated exceptional cleavage activity. A series of chemically modified derivatives was prepared and examined for cleavage activity and stability in human serum. One derivative showed a 10(3)-fold increase in serum stability and a doubling in cleavage efficiency compared to the unmodified miniribozyme. A second was almost 10(4)-fold more stable and only 7-fold less active than the unmodified parent. CONCLUSION: Hammerhead ribozyme derivatives in which helix II is reduced to a single G-C base pair cleave long RNA substrates very efficiently in vitro. Using commonly available phosphoramidites and reagents, two patterns of nucleotide substitution in this derivative were identified which conferred both good cleavage activity against long RNA targets and good stability in human serum

    An Aboriginal family and community healing program in metropolitan Adelaide: description and evaluation

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    This paper describes and evaluates the process, impacts and outcomes of an Aboriginal Family and Community Healing (AFCH) Program based in metropolitan Adelaide, South Australia. The evaluation used participatory action oriented methodology, mixed methods and multiple data sources. The AFCH comprised complex and dynamic activities for Aboriginal men, women and youth built around community engagement, and hosted by the regional primary health care Aboriginal outreach service. The AFCH Program was designed to develop effective responses to family violence that took into account the complexities within Aboriginal families and communities. The evaluation identified strengths of the program including: evidence-based design, holistic approach, clinical focus, committed staff, intersectoral linkages, peer support, mentoring, Aboriginal cultural focus, strategic partnerships and creative use of resources. Clients and workers were unanimous in their enthusiastic support for the program; their stories highlight beneficial impacts on Aboriginal clients, families and community. Other services may be able to adapt strategies from this AFCH to address the needs of their Aboriginal communities
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