5,280 research outputs found

    Different track - same destination? exploring the potential of 'Curriculum for Excellence' to improve educational practice in Scotland

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    This paper provides a commentary on the current opportunities open to policy makers and educators in developing the new national Curriculum for Excellence (CfE) for Scotland. It identifies areas of commonality between educational professionals from different sectors around the notion of curriculum. It explores different interpretations of the concept of curriculum and uses examples from informal education to highlight how youth workers and teachers could develop useful ways of working together. Further, the paper argues that an expression and prioritisation of values within the CfE policy provides the platform on which they can work more closely together in spite of their historically different pedagogical starting points. Ultimately, the paper seeks to convince both sectors that the CfE can be used creatively to offer an enhanced educational experience for young people in Scotland based on equity and social justice. This is an important and current issue for Education in Scotland and it is a debate which needs to be articulated, if we are to succeed in delivering a service which matches the aspirations of our nation and our young people

    Outcomes for youth work : coming of age or master’s bidding?

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    Abstract Providing evidence in youth work is a current and important debate. Modern youth work has, at least to some degree, recognised the need to produce practice information, through its various guises, with limited success as requirements and terminology have continually changed. In Scotland, the current demands for youth work to “prove” itself are through a performance management system that promotes outcome-based practice. There are some difficulties with this position because outcome-based practice lacks methodological rigour, is aligned with national governmental commitments and does not adequately capture the impact of youth work practice. This paper argues that youth workers need to develop both a theoretical and methodological approach to data collection and management,which is in keeping with practice values, captures the voice of the young person and enhances youth work practice. Youth work should not be used as a mechanism to deliver the government’s policies but be liberated from centralist control to become a “free practice” so that some of the perennial problems, such as democratic disillusionment, partly caused by this “performance management industry”, can be effectively dealt with. The generation of evidence for youth work should enable it to freely investigate and capture its impact, within the practice, based on the learning that has taken place, the articulation of the learners’ voice with the most appropriate form of data presentation

    The Causes of Political Integration: An Application to School Districts

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    This paper examines the forces behind political integration through the lens of school district consolidations, which reduced the number of school districts in the United States from around 130,000 in 1930 to under 15,000 at present. Despite this large observed decline, many districts resisted consolidation before ultimately merging and others never merged, choosing to remain at enrollment levels that nearly any education cost function would deem inefficiently small. Why do some districts voluntarily integrate while others remain small, and how do those districts that do merge choose with which of their neighbors to do so? In addressing these questions, we empirically examine the role of potential economies and diseconomies of scale, heterogeneity between merger partners, and the role of state governments. We first develop a simulation-based estimator that is rooted in the economics of matching and thus accounts for three important features of typical merger protocol: two-sided decision making, multiple potential partners, and spatial interdependence. We then apply this methodology to a wave of school district mergers in the state of Iowa during the 1990s. Our results highlight the importance of economies of scale, diseconomies of scale, state financial incentives for consolidation, and a variety of heterogeneity measures.

    Frequency response of underwater ultrasonic transducers in the near field using polarimetric polarization maintaining fiber sensors

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    Near-field ultrasonic response (50-2000 kHz) of an underwater 1-3 piezocomposite transducer is experimentally investigated using a polarimetric polarization maintaining fiber sensor. Measured outputs from our sensor and a reference hydrophone are observed to be comparable

    A new database program installed at the SUERC radiocarbon laboratory

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    The SUERC Radiocarbon Dating Laboratory has recently replaced its spreadsheet-based record keeping with a new database program, custom designed to help laboratory staff manage the high throughput of nearly 5000 cathodes in the past year. The system can accept data from a variety of sources in addition to manual entry; experimental results can be uploaded from spreadsheets, while integration with graphitisation lines means that graphite yields are automatically recorded. The system is able to pass radiocarbon results directly to OxCal 4 for calibration, with the resulting plots incorporated into the dating certificates issued to submitters. There are also benefits to submitters, with electronic sample submission both eliminating transcription errors and speeding up the logging-in process which keeps turnaround times down. For bone samples, data on collagen yields are now stored electronically and are more readily obtainable from the laboratory. The new SUERC Radiocarbon Dating Laboratory database will make a significant contribution to maintaining the high quality of results produced by the laboratory, aiding staff in tracking sample progress and monitoring quality assurance (QA) samples going through the laboratory, eliminating transcription errors and making communication easier between laboratory staff and sample submitters

    Prior in vitro exposure to voriconazole confers resistance to amphotericin B in aspergillus fumigatus biofilms

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    Triazoles are the mainstay of treatment for aspergillosis, although resistance to these antifungal agents may be associated with treatment failure. Refractory infections often necessitate a switch to other antifungal agents, including amphotericin B (AmB), although these infections may not resolve. The aim of this study was to investigate the effect of prior azole exposure on AmB sensitivity in Aspergillus fumigatus biofilms. It was hypothesised that sequential antifungal therapy has the potential to impact adaptive resistance mechanisms. Antifungal sensitivity was determined for each isolate against AmB ± voriconazole (VRZ) exposure by a broth microdilution method and an XTT metabolic assay. To analyse the role of extracellular DNA (eDNA) and Hsp90 activation, sensitivity to AmB ± DNA-digesting enzyme (DNase) or Hsp90 inhibitor [geldanamycin (GDA)] was also tested. Finally, scanning electron microscopy was performed to assess phenotypic changes. The in vitro data revealed that A. fumigatus sensitivity to AmB was decreased when it was tested in combination with VRZ. In addition, a two- to four-fold decreased sensitivity to AmB was recorded against VRZ-exposed germlings compared with controls. It was also shown that depletion of eDNA by DNase treatment enhanced AmB activity against VRZ-exposed cells by eight-fold, which visually could be explained by destabilisation of the biofilm when examined microscopically. Pharmacological inhibition of Hsp90 by GDA significantly improved biofilm susceptibility to AmB by four- to eight-fold. In conclusion, A. fumigatus pre-exposure to VRZ concomitantly induces eDNA release and activates the stress response, which collectively confers AmB resistance in vitro

    Spillovers, Foreign Investment, and Export Behavior

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    Case studies of export behavior suggest that firms who penetrate foreign markets reduce entry costs for other potential exporters, either through learning by doing or through establishing buyer- supplier linkages. We pursue the idea that spillovers associated with one firm's export activity reduce the cost of foreign market access for other firms. We identify two potential sources of spillovers: export activity in general and the specific activities of multinational enterprises. We use a simple model of export behavior to derive a logit specification for the probability a firm exports. Using panel data on Mexican manufacturing plants, we find evidence consistent with spillovers from the export activity of multinational enterprises but not with general export activity.

    Recovery of Benthic Macroinvertebrate Communities after Restoration in Two Intensively Mined Watersheds

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    As the body of literature supporting watershed-scale restoration projects continues to grow, there is need for a greater understanding of the underlying mechanisms that drive it. With data spanning ten years capturing pre- and post-restoration benthic macroinvertebrate communities in two distinct watersheds of West Virginia, we seek to contribute to the developing pool of knowledge regarding these dynamics. Sites were laid out prior to remediation in such a manner as to capture the spectrum of water quality conditions present, these are divided into three treatment types: reference, treated, and abandoned mine drainage (AMD). Our objectives were to: 1) determine if previously documented trends of improvement persisted into 2018, 2) explore specific impacts on community structure, and 3) determine if distance to remediation impacted degree of recovery. We hypothesized that: 1) previously measured improvements would continue, 2) watershed-wide communities would exhibit less variation over time as they grew more similar overall to reference quality, and 3) that sites situated farther from active treatment locations would exhibit greater degrees of recovery. In order to provide meaningful and holistic interpretations of the community data collected, we analyzed how site distance from active treatment dosers impacts scores from indices of biotic integrity as well as Bray-Curtis distance coefficients on community similarity. We found that the previously documented recovery was still in evidence, however at a much lesser rate. Contrary to our other hypotheses, watershed-wide communities became generally more diverse over time; and distance to treatment yielded opposite trends in recovery between our two watersheds

    Floating sensor arrays for wave measurement

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