220 research outputs found

    Dialogue on Public Broadcasting in Canada: An Interview with Wade Rowland

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    In framing the call-for-papers that kicked off this special issue, we asked potential contributors “what considerations might guide our attention as we think through public media as a socially central symbolic space that ought to be returned to the public interest? How might we come to re-inhabit public institutions?†Further to this, we queried possible contributors about the role and potentials of public broadcasting (notably the CBC) in a changing mediascape, and the possibilities for public media – not limited to the specific domains of established public broadcasters such as the CBC and the provincial educational networks, but rather appealing to an open interpretation of the term – that might be prefigured or imagined at present. As outlined in the introduction to this issue, the written pieces that arose from this line of questioning are varied and vital in their contributions. To place this exercise in context, it is important to note that this special issue of Stream was conceived and produced in conjunction with a public event held at the Wosk Centre for Dialogue at Simon Fraser University on February 6th, 2014 under the title ‘Occupy Public Broadcasting: Alt. Futures for the CBC’. That evening’s discussion brought together an eclectic panel and participating audience of media scholars, practitioners, activists, and concerned community members in dialogue and debate over the relative merits, limitations, and – most importantly – the future prospects for the CBC, other public broadcasters, and public media beyond this (circumscribed) context

    Barriers to Exercise and Nutrition for Special Olympics Athletes

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    Problem People with intellectual disability (ID) have higher rates of obesity. Special Olympics Vermont (SOVT) athletes compete in sports events throughout the year. Athletes may lose fitness between seasons. Their nutrition habits remain unknown. •Barriers to exercise and nutrition remain unknown. Goal We were tasked with designing a successful exercise and nutrition program for SOVT athletes.https://scholarworks.uvm.edu/comphp_gallery/1215/thumbnail.jp

    Reversing the Downward Trend: Innovative Approaches to IS/IT Course Development and Delivery

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    It is well known that student enrollment, and quite likely interest, has fallen in many IS/IT related courses in recent years, by our count as much as 75 percent. This downward trend has become a frequent topic of conversation among IS academics at conferences and on discussion lists such as ISWorld. However, there is a small but growing number of IS educators who are reexamining what it means to study information systems. The purpose of this panel, presented at the 2007 International Conference on Information Systems (ICIS), was to present and discuss diverse and innovative approaches to IS/IT teaching and course development

    Parsnips in ELT: stepping out of the comfort zone (Vol. 2)

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    The PARSNIP is, as many of you will know, a reference to all those topics that are commonly left out of the standard ELT coursebook: Politics, Alcohol, Religion, Sex, Narcotics, -Isms, Pork. And it is easy to understand why these things are not included - in simple terms coursebooks are written for the largest possible market and therefore can only ever concentrate on the safest common denominator in terms of topics. You might be able to get away with a discussion on the differences between democratic governments and dictatorships in Portugal, but the chances are you might find it more difficult in Belarus. So if you want to sell a coursebook in both Portugal and Belarus, you have to make sure that the topics are not going to prove overly contentious or possibly lead to the arrest and deportation of the teacher and closing of the school. The result though, is what Mario Rinvolucri described as ““the soft, fudgey, sub-journalistic, woman’s magaziney world of EFLese course materials” - endless worthy discussions about the environment, the role of technology in life and how to have a healthy lifestyle. The Parsnips in ELT project is an attempt to provide resources and support for teachers who do want to engage their classes in more meaningful topics and discussions. Or at the very least to do something different! It is however, up to you and your own personal and professional judgment whether you choose to use these lesson plans in your context and with your classes, or even if you choose to read them at all! Inevitably, there will be some lessons that you will feel are inappropriate to use and some that you feel will really get the class engaged in the topic and the discussion

    Thyroid hormone-regulated gene expression in juvenile mouse liver: identification of thyroid response elements using microarray profiling and in silico analyses

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    <p>Abstract</p> <p>Background</p> <p>Disruption of thyroid hormone signalling can alter growth, development and energy metabolism. Thyroid hormones exert their effects through interactions with thyroid receptors that directly bind thyroid response elements and can alter transcriptional activity of target genes. The effects of short-term thyroid hormone perturbation on hepatic mRNA transcription in juvenile mice were evaluated, with the goal of identifying genes containing active thyroid response elements. Thyroid hormone disruption was induced from postnatal day 12 to 15 by adding goitrogens to dams' drinking water (hypothyroid). A subgroup of thyroid hormone-disrupted pups received intraperitoneal injections of replacement thyroid hormones four hours prior to sacrifice (replacement). An additional group received only thyroid hormones four hours prior to sacrifice (hyperthyroid). Hepatic mRNA was extracted and hybridized to Agilent mouse microarrays.</p> <p>Results</p> <p>Transcriptional profiling enabled the identification of 28 genes that appeared to be under direct thyroid hormone-regulation. The regulatory regions of the genome adjacent to these genes were examined for half-site sequences that resemble known thyroid response elements. A bioinformatics search identified 33 thyroid response elements in the promoter regions of 13 different genes thought to be directly regulated by thyroid hormones. Thyroid response elements found in the promoter regions of Tor1a, 2310003H01Rik, Hect3d and Slc25a45 were further validated by confirming that the thyroid receptor is associated with these sequences <it>in vivo </it>and that it can bind directly to these sequences <it>in vitro</it>. Three different arrangements of thyroid response elements were identified. Some of these thyroid response elements were located far up-stream (> 7 kb) of the transcription start site of the regulated gene.</p> <p>Conclusions</p> <p>Transcriptional profiling of thyroid hormone disrupted animals coupled with a novel bioinformatics search revealed new thyroid response elements associated with genes previously unknown to be responsive to thyroid hormone. The work provides insight into thyroid response element sequence motif characteristics.</p

    Identification of thyroid hormone receptor binding sites in developing mouse cerebellum

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    Background: Thyroid hormones play an essential role in early vertebrate development as well as other key processes. One of its modes of action is to bind to the thyroid hormone receptor (TR) which, in turn, binds to thyroid response elements (TREs) in promoter regions of target genes. The sequence motif for TREs remains largely undefined as does the precise chromosomal location of the TR binding sites. A chromatin immunoprecipitation on microarray (ChIP-chip) experiment was conducted using mouse cerebellum post natal day (PND) 4 and PND15 for the thyroid hormone receptor (TR) beta 1 to map its binding sites on over 5000 gene promoter regions. We have performed a detailed computational analysis of these data.Results: By analysing a recent spike-in study, the optimal normalization and peak identification approaches were determined for our dataset. Application of these techniques led to the identification of 211 ChIP-chip peaks enriched for TR binding in cerebellum samples. ChIP-PCR validation of 25 peaks led to the identification of 16 true positive TREs. Following a detailed literature re

    Evidence of Resistance to Cry34/35Ab1 Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae): Root Injury in the Field and Larval Survival in Plant-Based Bioassays

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    Western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a serious pest of corn in the United States, and recent management of western corn rootworm has included planting of Bt corn. Beginning in 2009, western corn rootworm populations with resistance to Cry3Bb1 corn and mCry3A corn were found in Iowa and elsewhere. To date, western corn rootworm populations have remained susceptible to corn producing Bt toxin Cry34/35Ab1. In this study, we used single-plant bioassays to test field populations of western corn rootworm for resistance to Cry34/35Ab1 corn, Cry3Bb1 corn, and mCry3A corn. Bioassays included nine rootworm populations collected from fields where severe injury to Bt corn had been observed and six control populations that had never been exposed to Bt corn. We found incomplete resistance to Cry34/35Ab1 corn among field populations collected from fields where severe injury to corn producing Cry34/35Ab1, either singly or as a pyramid, had been observed. Additionally, resistance to Cry3Bb1 corn and mCry3A corn was found among the majority of populations tested. These first cases of resistance to Cry34/35Ab1 corn, and the presence of resistance to multiple Bt toxins by western corn rootworm, highlight the potential vulnerability of Bt corn to the evolution of resistance by western corn rootworm. The use of more diversified management practices, in addition to insect resistance management, likely will be essential to sustain the viability of Bt corn for management of western corn rootworm
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