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The last two years have been times of turbulence for the BBC, and other broadcasters, in terms of their coverage of UK politics. Their reporting of the general elections of 2015 and 2017, of the 2016 European Union Referendum and the 2015 election of Jeremy Corbyn to the leadership of the Labour Party have been much criticised (as has that of other mainstream media outlets). And despite the rise of social media, the BBC remains the most used and most trusted source of news in the UK and hence is a vital element in the UK public sphere. Consequently, these journalistic failures—when its political coverage failed to reflect what turned out to be the reality on the ground - are particularly problematic. This brings into focus the issue of “the truth” in election and referendum campaigns. The example quoted here—about the Labour Party and antisemitism—illustrates the difficulties in arriving at the “truth”, even in the less frenetic atmosphere between campaigns. It demonstrates how there can be many truths and this, in itself, raises urgent questions about the nature of political journalism which pose challenges for public broadcasting in Britain with implications that go much wider.  相似文献   
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Hypersecretion of prolactin by lactotroph cells of the anterior pituitary may lead to hyperprolactinemia in physiological, pathological and idiopathic conditions. Most patients with idiopathic hyperprolactinemia may have radiologically undetected microprolactinomas, but some may present other causes of hyperprolactinemia described as macroprolactinemia. This condition corresponds to the predominance of higher molecular mass prolactin forms (big-big prolactin, MW > 150 kDa), that have been postulated to represent prolactin monomer complexed with anti-prolactin immunoglobulins or autoantibodies. The prevalence of macroprolactinemia in hyperprolactinemic populations between 15-46% has been reported. In the pathophysiology of macroprolactinemia it seems that pituitary prolactin has antigenicity, leading to the production of anti-prolactin autoantibodies, and these antibodies reduce prolactin bioactivity and delay prolactin clearance. Antibody-bound prolactin is big enough to be confined to vascular spaces, and therefore macroprolactinemia develops due to the delayed clearance of prolactin rather than increased production. Although the clinical symptoms are less frequent in macroprolactinemic patients, they could not be differentiated from true hyperprolactinemic patients, on the basis of clinical features alone. Although gel filtration chromatography (GFC) is known to be the gold standard for detecting macroprolactin, the polyethylene glycol precipitation (PEG) method has offered a simple, cheap, and highly suitable alternative. In conclusion, macroprolactinemia can be considered a benign condition with low incidence of clinical symptoms and therefore hormonal and imaging investigations as well as medical or surgical treatment and prolonged follow-up are not necessary.  相似文献   
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The 2009 MPs' expenses scandal was one of the most significant political stories of modern times. It raised questions, not just about the ethics and behaviour of MPs but also about the relationship between politicians at Westminster and the political correspondents who follow them on a daily basis, known as ‘the lobby’. For the significance of this scandal, in media terms, was that the story was not broken by members of the lobby but came from outside the traditional Westminster news gathering process. This paper examines why this was the case and it compares the lobby today with that which was described and analysed by Jeremy Tunstall and Colin Seymour-Ure in their respective studies more than 40 years ago. The article concludes that the lobby missed the story partly because of the nature of the lobby itself and partly as a result of a number of specific changes which have taken place in the media and the political systems over the past 40 years.  相似文献   
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Due to the broad acceptance of the Programme for International Student Assessment (PISA) and other comparative studies as instruments of policymaking, its accuracy is essential. This article attempts to demonstrate omissions in the conceptualisation, and consequently in calculation and interpretation, of one of the central points of PISA 2006 and 2009. The authors point to the danger of such omissions for possible evidence-based education policymaking. With regard to the reproduction of social inequalities through education, we focus on variance in student performance between schools and within schools on the science scale (PISA 2006) and in the mother tongue (PISA 2009). The thesis of the PISA study is that there are countries (Finland, Iceland and Norway) where between only 14 and 29% of the average OECD variance (33%) is attributed to between-school variance – which is good – and there are countries (Germany, Bulgaria, Austria, Hungary, Belgium, Slovenia, the Netherlands, etc.), where the variance between schools is at least ‘one-and-a-half times that of the OECD’ – which is bad. For Slovenia, we demonstrate a significantly different share of variance explained by between-school variance of the same or similar cohort if we move the point of research by only nine months. Our main argument is that such a difference in the share of variance is not the result of a substantial change in the results (grooving difference in the performance) but the result of formal organisational change – the transition of the cohort to upper secondary education. The difference in calculations also radically changes policy implications, which is crucial. While PISA data suggest the necessity of policy measures to reduce between-school variance, our calculations suggest the need for reconsideration of policy measures aimed at the reduction of within-school variance, gender differences, and differences in performance between native and immigrant students.  相似文献   
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The paper develops the argument of two faces of censorship as a form of symbolic violence over individuals directed either inward or outward. In both instances, the resistance to disclosure and an effort to keep things hidden are normally complemented by strategic control over the process of making things visible. Silence is usually considered a sign of censorship, but in reality it can indicate not only the suppression of, but also a resistance to, communication. Despite the changes leading toward the “structural censorship” in modern complex societies, the essential questions remain: What are the strategies to confront the (hidden) forces of censorship, and how successful can they be?  相似文献   
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