649 research outputs found

    Sedimentology, Lithostratigraphy and Geochronology of the Paleoproterozoic Gordon Lake Formation, Huronian Supergroup, Ontario, Canada

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    The Gordon Lake Formation of the Paleoproterozoic Huronian Supergroup is a primarily-siliciclastic succession ranging from 300 to 1100 m thick. Lithostratigraphic and sedimentological analysis of the formation in the Bruce Mines and Flack Lake areas, and Killarney and Lady Evelyn-Smoothwater provincial parks revealed 7 lithofacies, which comprise 3 distinct lithofacies associations. The lithofacies associations are subtidal nearshore, subtidal to shallow shelf, and mixed intertidal flat. Microbially-induced sedimentary structures (MISS) related to microbial mat destruction and decay were recognized in the Flack Lake area. The preserved MISS include sand cracks, mat chips, remnant gas domes, and pyrite patches, and iron laminae. A biological origin for the fossil structures is supported by their similarities to modern and ancient documented examples of MISS, the sand-dominated nature of the substrate in which they are preserved, and key microtextures identified in thin section. The identified MISS support the interpretation of a tidal flat depositional environment. The Gordon Lake Formation contains soft-sediment deformation structures (SSDS) in all four study areas. Identified SSDS include load casts, convolute bedding, pseudonodules, ball-and-pillow structures, flame structures, syn-sedimentary faults, and one dewatering pipe. The primary trigger mechanism is interpreted to be storm or tsunami activity, however seismic shock, overloading brought about by density inversions, or a combination of these processes, may have influenced the development of the structures to a lesser degree. Microbial mats may have played a minor role in the formation of the SSDS, but do not appear to have been a prominent driving mechanism. Detrital zircon U-Pb ages from a sandstone provide new evidence for the maximum depositional age of the formation and reinterpretation of the depositional history of the upper Huronian Supergroup. The average age of the youngest zircon grains constrains the age of deposition to sometime after 2315 ± 5 Ma, but prior to intrusion of gabbro (Nipissing) approximately 95 m.y. later

    Evaluating the feasibility and acceptability of home‐based urinalysis for albumin‐creatinine ratio with smartphone technology: A quality improvement project

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    © 2023 The Authors. Journal of Renal Care published by John Wiley & Sons Ltd on behalf of European Dialysis & Transplant Nurses Association/European Renal Care Association. This is an open access article under the terms of the Creative Commons Attribution License, https://creativecommons.org/licenses/by/4.0/Background: Despite albumin‐creatinine ratio (urine) testing being recommended for detection of chronic kidney disease among adults with diabetes, testing rates are suboptimal. Aim: We implemented and evaluated a quality improvement project in an inner‐city diabetes population in London, UK to assess the feasibility and acceptability of implementing novel home‐based urinalysis using smartphone technology. Methods: After eligible patients were identified and consented, testing kits were sent to the patient's home. Test results and patient feedback were collected through the smartphone application. Focus group discussions were conducted to evaluate primary care staff perspectives on uptake and delivery of the service. Results: In total 2370 patients agreed to take part. Of these, 1244 completed the test (61% of those eligible) and of these, 465 (37%) had clinically significant albuminuria. 98% of patients found the test easy or very easy to use. Staff in primary care found the service to be beneficial for patients, and reported ease of set up and minimal administrative processes. Concerns regarding barriers among patients with lower digital literacy and non‐English speakers were raised although these concerns were not substantiated. Conclusion: Home‐based albumin‐creatinine ratio urine testing may improve the testing rates of people with diabetes at higher risk of chronic kidney disease. This is important post‐pandemic, as healthcare services are trying to return to pre‐pandemic levels of care. The study also found that the use of smartphone technology in an underserved (deprived) community is feasible, despite reservations about levels of digital literacy and possible language barriers. Further evaluation of effectiveness and costs is required.Peer reviewe

    FACS 170 Introduction to Early Care and Education: A Three Year Analysis and Peer Review of College Teaching/Learning

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    I. Peer Review of Teaching Project This project provides a way for college faculty to work with others in a supportive context to document and reflect on both the quantity and quality of student learning. Faculty members work in groups of 3-5 for a semester or year to support each other\u27s exploration of not only what students learn but also how they learn, for a particular selected course. Personal goals: To improve teaching delivery and teaching methods for the enhancement of student learning and student professional development. II. UNL\u27s Peer Review Process The purpose is to improve college teaching and “make learning visible” by: • Carefully describing course objectives and structure and investigating teaching strategies and student understanding and performance • Reflecting with others on the course’s effectiveness and the links between teaching and the learning achieved or not achieved • Documenting the process in a course portfolio • Putting the portfolios on the web to be shared among the universities in the Peer Review of Teaching Consortium (Nebraska, Indiana, Kansas State, Michigan, and Texas A&M

    Investigating the contribution of community empowerment policies to successful co-production: evidence from Scotland

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    Although frequently perceived as a ‘woolly’ policy concept and a means to reduce public service delivery costs, co-production can lead to increased quality and efficiency of services. In this paper, we explore the contribution of a community empowerment policy to co-production processes. Analysing empirical findings from a mixed-method, longitudinal study through the lens of Myers et al.’s (2017) Theory of Change, the paper develops a model of a successful co-production process. We show that changes in working practices and shifts in power can create friction between co-producing actors. By critiquing specific policies, we inform future co-production research, policy, and practice

    The “soft edge”: Heritage, special character, and new planning directives in Aotearoa cities

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    Divergent visions for urban form are currently contesting the future of cities in Aotearoa. Severe pressures of population growth, inadequate housing supply, and unsustainable transport systems are raising a spectrum of voices on the appropriate planning response. The heritage field is enfolded in these debates, as intensification pressures have amplified questions about the value of historic urban fabric and the planning mechanisms that sustain it. To what extent should cities’ existing areas be retained or developed, and who gets to decide? Focusing on the “soft edge” of heritage—early suburbs valorised as “special character”—the paper traces the history of heritage-making in urban Aotearoa and its role in maintaining the ontological security of the settler state. It first explores the processes of identifying and managing historic urban forms that have gradually evolved through Aotearoa’s planning legislation, from the early town planning acts to the Resource Management Act 1991. It then analyses the tension between contemporary urban planning directions and historic places conservation, exploring the concept of “amenity,” which is implicated in both. It concludes with some avenues for deeper collaboration between planning policy and heritage-making for more spatially and culturally equitable cities

    Against the Tide: Household Structure, Opportunities, and Outcomes among White and Minority Youth

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    The authors examine the effects of household structure on young adults and how these effects might have contributed to the negative trends in educational and employment outcomes observed for young minorities over time.https://research.upjohn.org/up_press/1028/thumbnail.jp

    Attitudes towards Black American Sign Language

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    This paper explores how language attitudes and ideologies impact perceptions of language varieties in the American Deaf community, with a particular focus on Black ASL, the variety of ASL developed by African Americans in the South during the era of segregation. Results of multivariate analysis show that on a number of dimensions, Black ASL, particularly as used by signers who attended school before integration, is closer to the standard variety taught in ASL classes and used in ASL dictionaries. Nevertheless, despite evidence that their variety is closer to the standard taught in ASL classes, many of the older signers interviewed felt that white signing was superior. Attitudes among the younger signers were more mixed. While a few younger signers said that white signing was better than Black signing, others said that Black signing was more powerful in expression and movement and it had rhythm and style while white signing was more monotonic and lacked emotion. This paper explores the complex mix of attitudes expressed by study participants in the six Southern states in relation to the historical development of this distinctive variety of ASL
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