143 research outputs found

    The Quality Schools Model Of Education Reform: A Description Of Knowledge Management Beliefs And Practices Using Baldrige In Education Criteria

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    Thesis (Ph.D.) University of Alaska Fairbanks, 2008This study used a concurrent nested mixed-methods approach to analyze the implementation of the Quality Schools Model of education reform through the lens of the seven Malcolm Baldrige Education criteria. Specifically, this study was an inquiry to determine the difference in beliefs and implementation related to knowledge constructs between and within groups of school staff based on professional role, years of education experience and years of experience working in the Quality Schools Model district. This research also used structural equation modeling to examine the fit between the Baldrige in Education theoretical model and actual practice of the Baldrige concepts in the context of rural Alaska school districts implementing the Quality Schools Model of comprehensive education reform. A 72-item questionnaire was used to measure beliefs about importance of concepts and perceptions of the concepts in practice. The questionnaire was administered to a convenience sample of 212 administrators, teachers, and classified staff in three rural Alaska school districts. Qualitative data was gathered through 14 semi-structured interviews with community members, elders, school board members, parents, and school staff. Results from the questionnaire data showed that job classification was the greatest predictor of mean responses. Administrators perceived knowledge activities were in practice to a greater degree than teachers. There were no significant differences in beliefs about importance or practice among participants based on years of education work experience or on experience in the current school district. The results showed ambivalence and sticky transfer in the street-level implementation of the QSM with significant large differences between belief and practice scores for all groups. A structural model of Baldrige in Education factors with leadership as the exogenous factor was created for the QSM. Results showed that leadership had a direct effect on knowledge management, and knowledge management had a direct effect on strategic planning, and an indirect effect on process management and the outcome variables of student, stakeholder and market focus, and results. There was no direct or indirect path between the knowledge factor and staff focus factor, leading to a recommendation to increase knowledge creation and sharing opportunities for that group

    The Cost of Teacher Turnover in Alaska

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    Low teacher retention - high turnover - affects student learning. Teacher recruitment and retention are challenging issues in Alaska. Rates vary considerably from district to district and year to year, but between 2004 and 2014, district-level teacher turnover in rural Alaska averaged 20%, and about a dozen districts experienced annual turnover rates higher than 30%. High turnover rates in rural Alaska are often attributed to remoteness and a lack of amenities (including healthcare and transportation); teachers who move to these communities face additional challenges including finding adequate housing and adjusting to a new and unfamiliar culture and environment. Though urban districts have lower teacher turnover rates, they also have challenges with teacher recruitment and retention, particularly in hard-to-fill positions (such as special education and secondary mathematics) and in difficult-to-staff schools. Annually, Alaskan school districts hire about 1,000 teachers (500-600 are hired by its five largest districts), while Alaska’s teacher preparation programs graduate only around 200. The costs associated with teacher turnover in Alaska are considerable, but have never been systematically calculated,1 and this study emerged from interests among Alaska education researchers, policymakers, and stakeholders to better understand these costs. Using data collected from administrators in 37 of Alaska’s 54 districts, we describe teacher turnover and the costs associated with it in four key categories: separation, recruitment, hiring, and induction and training. Our calculations find that the total average cost of teacher turnover is 20,431.08perteacher.ExtrapolatingthistoAlaska’s2008−2012turnoverdata,thisconstitutesacosttoschooldistrictsofapproximately20,431.08 per teacher. Extrapolating this to Alaska’s 2008-2012 turnover data, this constitutes a cost to school districts of approximately 20 million per year. We focused on costs to Alaskan school districts, rather than costs to individual communities, schools, or the state. Our calculation is a conservative estimate, and reflects typical teacher turnover circumstances - retirement, leaving the profession, or moving to a new school district. We did not include unusual circumstances, such as mid-year departures or terminations. Our cost estimate includes costs of separation, recruitment, hiring, and orientation and training, and excludes the significant costs of teacher productivity and teacher preparation. We suggest that not all turnover is bad, nor are all turnover costs; and emphasize the need to focus on teacher retention as a goal, rather than reducing turnover costs. Even with conservative estimates, teacher turnover is a significant strain on districts’ personnel and resources, and in an era of shrinking budgets, teacher turnover diverts resources from teaching and learning to administrative processes of filling teacher vacancies. Our recommendations include: • Better track teacher turnover costs • Explore how to reduce teacher turnover costs • Support ongoing research around teacher turnover and its associated costs • Explore conditions driving high teacher turnover, and how to address themUniversity of Alaska FoundationExecutive Summary / Acknowledgements / Funding / Contact / What is teacher turnover? / What are the impacts of teacher turnover? / What factors are associated with teacher turnover? / What are the costs associated with teacher turnover? / Challenges in calculating turnover costs / Method / Analysis / Findings / Implications / Recommendations / Limitations / Conclusions / References / Appendix A: Detail costs of teacher turnover / Appendix B: Occupation codes & wages used for cost calculation

    Sex on TV 2

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    Part of a series that examines the nature and extent of sexual messages conveyed on TV. Tracks changes that occur over time in the treatment of sexual topics, including references to possible risks or responsibilities. Based on a 1999-2000 program sample

    Sex on TV 3

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    Part of a series that examines the nature and extent of sexual messages conveyed on TV. Tracks changes that occur over time in the treatment of sexual topics, including references to possible risks or responsibilities. Based on a 2001-2002 program sampl

    Unmanned Aerial Vehicles for High-Throughput Phenotyping and Agronomic Research

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    Advances in automation and data science have led agriculturists to seek real-time, high-quality, high-volume crop data to accelerate crop improvement through breeding and to optimize agronomic practices. Breeders have recently gained massive data-collection capability in genome sequencing of plants. Faster phenotypic trait data collection and analysis relative to genetic data leads to faster and better selections in crop improvement. Furthermore, faster and higher-resolution crop data collection leads to greater capability for scientists and growers to improve precision-agriculture practices on increasingly larger farms; e.g., site-specific application of water and nutrients. Unmanned aerial vehicles (UAVs) have recently gained traction as agricultural data collection systems. Using UAVs for agricultural remote sensing is an innovative technology that differs from traditional remote sensing in more ways than strictly higher-resolution images; it provides many new and unique possibilities, as well as new and unique challenges. Herein we report on processes and lessons learned from year 1-the summer 2015 and winter 2016 growing seasons-of a large multidisciplinary project evaluating UAV images across a range of breeding and agronomic research trials on a large research farm. Included are team and project planning, UAV and sensor selection and integration, and data collection and analysis workflow. The study involved many crops and both breeding plots and agronomic fields. The project's goal was to develop methods for UAVs to collect high-quality, high-volume crop data with fast turnaround time to field scientists. The project included five teams: Administration, Flight Operations, Sensors, Data Management, and Field Research. Four case studies involving multiple crops in breeding and agronomic applications add practical descriptive detail. Lessons learned include critical information on sensors, air vehicles, and configuration parameters for both. As the first and most comprehensive project of its kind to date, these lessons are particularly salient to researchers embarking on agricultural research with UAVs

    TNPO2 variants associate with human developmental delays, neurologic deficits, and dysmorphic features and alter TNPO2 activity in Drosophila

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    Transportin-2 (TNPO2) mediates multiple pathways including non-classical nucleocytoplasmic shuttling of >60 cargoes, such as developmental and neuronal proteins. We identified 15 individuals carrying de novo coding variants in TNPO2 who presented with global developmental delay (GDD), dysmorphic features, ophthalmologic abnormalities, and neurological features. To assess the nature of these variants, functional studies were performed in Drosophila. We found that fly dTnpo (orthologous to TNPO2) is expressed in a subset of neurons. dTnpo is critical for neuronal maintenance and function as downregulating dTnpo in mature neurons using RNAi disrupts neuronal activity and survival. Altering the activity and expression of dTnpo using mutant alleles or RNAi causes developmental defects, including eye and wing deformities and lethality. These effects are dosage dependent as more severe phenotypes are associated with stronger dTnpo loss. Interestingly, similar phenotypes are observed with dTnpo upregulation and ectopic expression of TNPO2, showing that loss and gain of Transportin activity causes developmental defects. Further, proband-associated variants can cause more or less severe developmental abnormalities compared to wild-type TNPO2 when ectopically expressed. The impact of the variants tested seems to correlate with their position within the protein. Specifically, those that fall within the RAN binding domain cause more severe toxicity and those in the acidic loop are less toxic. Variants within the cargo binding domain show tissue-dependent effects. In summary, dTnpo is an essential gene in flies during development and in neurons. Further, proband-associated de novo variants within TNPO2 disrupt the function of the encoded protein. Hence, TNPO2 variants are causative for neurodevelopmental abnormalities

    TNPO2 variants associate with human developmental delays, neurologic deficits, and dysmorphic features and alter TNPO2 activity in Drosophila

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    Transportin-2 (TNPO2) mediates multiple pathways including non-classical nucleocytoplasmic shuttling of >60 cargoes, such as developmental and neuronal proteins. We identified 15 individuals carrying de novo coding variants in TNPO2 who presented with global developmental delay (GDD), dysmorphic features, ophthalmologic abnormalities, and neurological features. To assess the nature of these variants, functional studies were performed in Drosophila. We found that fly dTnpo (orthologous to TNPO2) is expressed in a subset of neurons. dTnpo is critical for neuronal maintenance and function as downregulating dTnpo in mature neurons using RNAi disrupts neuronal activity and survival. Altering the activity and expression of dTnpo using mutant alleles or RNAi causes developmental defects, including eye and wing deformities and lethality. These effects are dosage dependent as more severe phenotypes are associated with stronger dTnpo loss. Interestingly, similar phenotypes are observed with dTnpo upregulation and ectopic expression of TNPO2, showing that loss and gain of Transportin activity causes developmental defects. Further, proband-associated variants can cause more or less severe developmental abnormalities compared to wild-type TNPO2 when ectopically expressed. The impact of the variants tested seems to correlate with their position within the protein. Specifically, those that fall within the RAN binding domain cause more severe toxicity and those in the acidic loop are less toxic. Variants within the cargo binding domain show tissue-dependent effects. In summary, dTnpo is an essential gene in flies during development and in neurons. Further, proband-associated de novo variants within TNPO2 disrupt the function of the encoded protein. Hence, TNPO2 variants are causative for neurodevelopmental abnormalities

    Mapping the landscape: Peer review in computing education research

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    Peer review is a mainstay of academic publication – indeed, it is the peer-review process that provides much of the publications’ credibility. As the number of computing education conferences and the number of submissions increase, the need for reviewers grows. This report does not attempt to set standards for reviewing; rather, as a first step toward meeting the need for well qualified reviewers, it presents an overview of the ways peer review is used in various venues, both inside computing education and, for com- parison, in closely-related areas outside our field. It considers four key components of peer review in some depth: criteria, the review process, roles and responsibilities, and ethics and etiquette. To do so, it draws on relevant literature, guidance and forms associated with peer review, interviews with journal editors and conference chairs, and a limited survey of the computing education research community. In addition to providing an overview of practice, this report identifies a number of themes running through the discourse that have relevance for decision making about how best to conduct peer review for a given venue

    Approach to epigenetic analysis in language disorders

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    Language and learning disorders such as reading disability and language impairment are recognized to be subject to substantial genetic influences, but few causal mutations have been identified in the coding regions of candidate genes. Association analyses of single nucleotide polymorphisms have suggested the involvement of regulatory regions of these genes, and a few mutations affecting gene expression levels have been identified, indicating that the quantity rather than the quality of the gene product may be most relevant for these disorders. In addition, several of the candidate genes appear to be involved in neuronal migration, confirming the importance of early developmental processes. Accordingly, alterations in epigenetic processes such as DNA methylation and histone modification are likely to be important in the causes of language and learning disorders based on their functions in gene regulation. Epigenetic processes direct the differentiation of cells in early development when neurological pathways are set down, and mutations in genes involved in epigenetic regulation are known to cause cognitive disorders in humans. Epigenetic processes also regulate the changes in gene expression in response to learning, and alterations in histone modification are associated with learning and memory deficits in animals. Genetic defects in histone modification have been reversed in animals through therapeutic interventions resulting in rescue of these deficits, making it particularly important to investigate their potential contribution to learning disorders in humans
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