147 research outputs found

    The Getting of Taste: A Child’s Apprenticeship

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    Childhood art experience reflects an apprenticeship to the taste systems which a child\u27s family and the public school subscribe to. This paper sketches my own taste experiences as a school child advancing from age six to eleven. Taste is used here to mean a person\u27s ability to discern among alternatives. Taste judgments rely on not only aesthetic criteria but also status and economic criteria that are part of the social context in which one makes choices in objects and images. Understanding this childhood apprenticeship reveals some of the factors influencing participation in art activity and aesthetic choice. I will outline a range of insights gained at home and in school (some 400 in all, retrieved from storage in my parent\u27s attic). The study proceeded within the method of phenomenological description and the structure of hermeneutic theory. Although they will not be detailed here, severe consistencies, relationships and meaning that shaped the event of childhood art experience were identified, among them the implicit taste systems that underlie family and teacher choices and judgments

    What is the Meaning of “Art Means Work”? (A Critical Response to the A.I.M. Statement)

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    The A.I.M Statement\u27s endorsement of good work is significant; not as a guide that shows us a clear direction to follow, but for its manifestation of the social and economic contradictions that must be critically addressed if we are to forge a path toward realistic and effective art education for this society. It is that these contradictions have been exposed and my critical reflection prodded that I am most appreciative

    Toxic Algae Contamination and Demand for Shellfish: A Case Study of Demand for Mussels in Montreal

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    Toxic algae blooms are a worldwide phenomena, which appear to be increasing in frequency and severity. These natural events cause product contaminations that often have significant economic consequences, including supply interruptions due to closed fishing grounds, losses from human illness, and losses due to a decline in demand for the affected products. This paper evaluates the impacts of a toxic algae bloom contamination event on demand for unaffected shellfish. As an empirical example of the economic losses the shellfish industry experiences for these events, demand for mussels in Montreal is estimated using firm-level data and proxies for consumer information, during and after domoic acid contamination of Prince Edward Island mussels. Sales losses due to decreased demand are calculated. Implications of this issue for seafood safety and management policies are discussed.demand, shellfish, toxic algae, contamination, Demand and Price Analysis, Environmental Economics and Policy, Food Consumption/Nutrition/Food Safety, Resource /Energy Economics and Policy,

    Everyday Advocacy as Part of Everyday Professionalism

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    What would happen if we began to see advocacy as part of teachers’ professional identity, as an integral part of who we all are as teachers—not just in moments of crisis, but every day? This article demonstrates how three teachers have made everyday advocacy part of their identity after participating in advocacy training, by exploring the action plans they created surrounding issues of concern in their local contexts

    Tbx5 is Required for Avian and Mammalian Epicardial Formation and Coronary Vasculogenesis.

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    Rationale: Holt-Oram syndrome (HOS) is an autosomal dominant heart-hand syndrome caused by mutations in the TBX5 gene. Overexpression of Tbx5 in the chick proepicardial organ (PEO) impaired coronary blood vessel formation. However, the potential activity of Tbx5 in the epicardium itself, and Tbx5\u27s role in mammalian coronary vasculogenesis, remains largely unknown. Objective: To evaluate the consequences of altered Tbx5 gene dosage during PEO and epicardial development in the embryonic chick and mouse. Methods and Results: Retroviral-mediated knockdown or upregulation of Tbx5 expression in the embryonic chick PEO as well as proepicardial-specific deletion of Tbx5 in the embryonic mouse (Tbx5(epi-/-)) impaired normal PEO cell development, inhibited epicardial and coronary blood vessel formation and altered developmental gene expression. The generation of epicardial-derived cells (EPDCs) and their migration into the myocardium was impaired between embryonic day (E) 13.5-15.5 in mutant hearts due to delayed epicardial attachment to the myocardium and subepicardial accumulation of EPDCs. This caused defective coronary vasculogenesis associated with impaired vascular smooth muscle cell recruitment, and reduced invasion of cardiac fibroblasts and endothelial cells into myocardium. In contrast to wildtype hearts that exhibited an elaborate ventricular vascular network, Tbx5(epi-/-) hearts displayed a marked decrease in vascular density that was associated with myocardial hypoxia as exemplified by HIF1α upregulation and increased binding of Hypoxyprobe-1. Tbx5(epi-/-) mice with such myocardial hypoxia exhibited reduced exercise capacity compared to wildtype mice. Conclusions: Our findings support a conserved Tbx5 dose-dependent requirement for both proepicardial and epicardial progenitor cell development in chick and mouse coronary vascular formation

    A Public Platform for the Verification of the Phenotypic Effect of Candidate Genes for Resistance to Aflatoxin Accumulation and Aspergillus flavus Infection in Maize

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    A public candidate gene testing pipeline for resistance to aflatoxin accumulation or Aspergillus flavus infection in maize is presented here. The pipeline consists of steps for identifying, testing, and verifying the association of selected maize gene sequences with resistance under field conditions. Resources include a database of genetic and protein sequences associated with the reduction in aflatoxin contamination from previous studies; eight diverse inbred maize lines for polymorphism identification within any maize gene sequence; four Quantitative Trait Loci (QTL) mapping populations and one association mapping panel, all phenotyped for aflatoxin accumulation resistance and associated phenotypes; and capacity for Insertion/Deletion (InDel) and SNP genotyping in the population(s) for mapping. To date, ten genes have been identified as possible candidate genes and put through the candidate gene testing pipeline, and results are presented here to demonstrate the utility of the pipeline

    Families’ roles in children’s literacy in the UK throughout the 20th century

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    This paper explores the changing roles of families in children’s developing literacy in the UK in the last century. It discusses how, during this time, understandings of reading and writing have evolved into the more nuanced notion of literacy. Further, in acknowledging changes in written communication practices, and shifting attitudes to reading and writ- ing, the paper sketches out how families have always played some part in the literacy of younger generations; though reading was frequently integral to the lives of many families throughout the past century, we consider in particular the more recent enhancement of children’s literacy through targeted family programmes. The paper considers policy implications for promoting young children’s literacy through work with families
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