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1.
Bob Franklin 《教育政策杂志》2013,28(3):255-270
This paper explores how recent Labour governments have tried systematically to package educational and other social policies for media presentation and public consumption. This concern has resulted in the criticism that Labour is concerned with policy presentation above content: strong on policy spin but weak on policy delivery. The first section explores Labour’s attempts to set a favourable agenda in news media for its educational policies by implementing a rigorous news management strategy: the subsequent section analyses Labour’s unprecedented use of advertising to promote key areas of government policy. There is a particular focus on government advertising in the run up to the 2001 general election. The paper concludes that governments’ increasing reliance on advertising may cross the line which should separate the provision of public information from any attempt to persuade the public to support particular policy choices. 相似文献
2.
从新的视角引出了电子自旋角动量升降算符,并对自旋角动量三个分量等几方面进行了推论和具体应用,以展示算符理论的内在美和形式美. 相似文献
3.
T. Padmanabhan 《Resonance》2008,13(8):706-715
The Foucault pendulum is an elegant device that demonstrates the rotation of the Earth. After describing it, we will elaborate
on an interesting geometrical relationship between the dynamics of the Foucault pendulum and Thomas precession discussed in
the last installment1. This will help us to understand both phenomena better.
T Padmanabhan works at IUCAA, Pune and is interested in all areas of theoretical physics, especially those which have something
to do with gravity. 相似文献
4.
曹欣伟 《西安文理学院学报》2004,19(3):68-71
本使用严格对角化方法对S=1／2自旋阶梯模型进行了数值模拟计算研究，通过对不同长度自旋阶梯中两条单链和链间耦合部分各自对基态能量、能隙的贡献比例和自旋关联的考察，认为该系统处于自旋液体状态，同时模拟计算的结果对沿链方向形成交错磁场的假设提出了质疑。 相似文献
5.
利用密度泛函理论在B3LYP/6-311+G*基组水平上以两类饱和烷烃分子链体系为研究对象:CnH2n+1OH(n=10,12,14,16,18)和C12H25X(X=Cl,OH,NH2),讨论了烷烃链分子中末端官能团、分子链链长对分子电子结构的影响以及电荷迁移机理.计算结果表明:末端官能团对分子电子结构影响较大,分子链链长对分子电子结构影响则相对较小,而饱和烷烃链分子的电荷迁移属于空穴传输机理,而不是电子传输机理. 相似文献
6.
《Journal of Informetrics》2014,8(3):710-727
By modeling research systems as complex systems we generalize similarity measures used in the literature during the last two decades. We propose to use the mathematical tools developed within the spin-glasses literature to evaluate similarity within systems and between systems in a unified manner. Our measure is based on the ‘overlap’ of disciplinary profiles of a set of research systems and can readily be integrated in the framework of traditional bibliometric profile analysis. The investigation of the distribution of the overlaps provides useful insights on the dynamics of the general system, that is whether it converges toward a unique disciplinary structure or to a differentiated pattern.We illustrate the usefulness of the approach by investigating the dynamics of disciplinary profiles of European countries from 1996 to 2011. We analyze several bibliometric indicators (including publications and citations) of European countries in the 27 Scopus subject categories. We compare the disciplinary profiles of European countries (i) among them; (ii) with respect to the European standard; and (iii) to the World reference.We find that there is a convergence toward a unique European disciplinary profile of the scientific production even if large differences in the scientific profiles still remain. The investigation of the dynamics by year shows that developing countries are converging toward the European model while some developed countries are departing from it. 相似文献
7.
In the current performance and ‘excellence’ culture that has so bewitched politicians and beset educators, there are no discourses available to voice and to make sense of the anxieties that consistently arise for children who are pushed towards ever-higher performance. Drawing on the findings from a study of children's transitions from primary to secondary school, this paper examines some of the structural and emotional consequences of current school-choice policy in the UK. Deep-seated fears of downward mobility held by some sections of the middle classes are potently mobilized when faced with the constraints of local secondary schools markets. Children from professional middle-class families are pushed towards high performance as a response to these fears with parents using a range of strategies to place their child in a high performing school, including entering them for selective schools' entrance examinations. In the pursuit of the kind of attainment seen to be necessary in order to ensure the successful reproduction of professional middle-class status, we argue that difficult emotions have to be suppressed or split off. For middle-class girls in particular, the constant striving for and achievement of high attainment, rather than unproblematically engendering a sense of confidence in their abilities, can produce a sense of never being good enough. Nor is it only the middle classes who are implicated in these processes. There are serious consequences for working-class children and we discuss how they are positioned in relation to UK policy initiatives that prioritize ‘excellence’. 相似文献
8.
《International Journal of Information Management》2016,36(5):793-798
This case study illustrates the issues that arise when a separate “maverick” business unit focusing on developing a new and disruptive innovation is spun off from the parent company. Companies in the high technology manufacturing and development sector have to continually innovate in order to survive and grow in increasingly turbulent and competitive markets. It is common practice for the parent company to spin off separate business units that can incubate and capitalise on the development of new technological innovations in order to grow and create new markets. The case analysis underlines the problems that arise when ICT systems and operational processes are not strategically aligned and imposed by the parent company. It also demonstrates how innovative business units can harness their unique talents and apply them to solving operational problems. By developing a new bespoke system aligned with the maverick unit’s emergent processes, the maverick business unit was pulled back from the brink of disaster to a successful and profitable business unit. 相似文献
9.
卢卯旺 《湖南科技学院学报》2006,27(11):156-159
研究了一般的磁调制半导体纳米体系中电子自旋输运性质，其可以通过在半导体异质结表面沉积具有任意磁化方向的铁磁条带形成。通过对真实InAs材料系统的计算，发现这种系统具有很强的电子自旋极化效应，其自旋极化度在共振时超过80％。因此，我们的系统可以用于电子自旋过滤器。 相似文献
10.