An embedding approach is proposed to investigate the stability of some nonlinear sampled data systems. It is shown that the stability criterion so obtained may conclude for stability when other criteria do not apply. The approach could be extended in a more general way. 相似文献
The notion that women in the United States’ electronic sports media face greater standards of appearance is not new (Sheffer, M. L., & Schultz, B. (2007) Double standard: Why women have trouble getting jobs in local television sports. Journal of Sports Media, 2(1), 77–101). What has not been explored, however, is the persistence of this double standard through a Foucauldian lens. Using Michel Foucault’s (Foucault, M. (1978). The history of sexuality:Vol. 1, an introduction. New York: Vintage Books) power/knowledge paradigm, this Foucauldian discourse analysis uses one-on-one interviews with women sportscasters and textual analysis to grapple with this previously unexplored aspect of one of electronic sports media’s longest standing gendered double standards.
Using these data, this article argues that post-feminist discourses (Gill, R. (2007) Gender and the media. Cambridge: Polity Press; McRobbie, A. (2004) Post-feminism and popular culture. Feminist Media Studies, 4(3), 255–264) have a mutually informing relationship with three manifestations of the electronic sports media’s gendered double standard of appearance: sportscaster hiring and retention, inequitable media consumer evaluations of on-screen appearance, and expectations for sportscaster dress, the latter of which have required many women to wear increasingly revealing clothing, a trend this article refers to as nightclubification. While post-feminist analysis explicates the nuances of the appearance double standard and the electronic sports media’s contributions to our culture’s constructions of gender relations, Foucauldian discourse analysis demonstrates how the appearance double standard has been taken for granted and how it might inform other obstacles women in the industry must navigate. 相似文献
Following the election of the Conservative–Liberal Democrat UK coalition Government in 2010, there has been an urgent intensification and focus upon early years numeracy and literacy and promoting systematic synthetic phonics. This paper argues that the current narrowing of early years assessment, along with increased inspection and surveillance, operates as a policy technology leading to an intensification of ‘school readiness’ pressures upon the earliest stage of education. The paper suggests that this governance has encouraged a functional ‘datafication’ of early years pedagogy so that early years teacher’s work is increasingly constrained by performativity demands to produce ‘appropriate’ data. The article argues that early years high-stakes national assessments act as a ‘meta-policy’, ‘steering’ early years pedagogy ‘from a distance’ and have the power to challenge, disrupt and constrain early years teacher’s deeply held child-centred pedagogical values. 相似文献
Purpose: Approaches to build farmers' analytical capacities are said to trigger wide-ranging changes. This article reports on the communication process between participants and non-participants in one such approach, related to the technical and management skills learned by participants and the changes these participants subsequently made, and the outcomes in terms of non-participants' learning.
Design/Methodology/Approach: In this study, we analysed the following: (1) participants' learning and changes in social practices; (2) communication between participants and non-participants regarding technical and management skills and changes in social practices; (3) non-participants' learning and changes in social practices. The case study was a management advice to family farm project in three villages in Benin.
Findings: Most participants learned management skills, which led them to reassess their objectives and to reduce traditional social practices they now considered unproductive. Even in the case of frequent communication, non-participants found it difficult to learn management skills, which hindered their experiential learning. Non-participants consequently had difficulty understanding why participants changed their social practices such as reduction of their traditional gift giving, leading to limited well-argued discussion about these changes in practices between participants and non-participants.
Practical Implications: This study shows that, due to the limited learning process of non-participants communicating with participants, there is a need to design and test approaches to achieve capacity-building while including more participants at a similar cost, and to stimulate explicit discussion at village level about the changes in values and social practices that these approaches may trigger.
Originality/Value: The article analyses both participants and non-participants' experiential learning, and looks at the two sides of the interaction between the communication processes and non-participants' learning. 相似文献
The objective of this study was to examine the nature of preservice teachers’ evaluations of elementary mathematics problems using the Mathematical Tasks Framework (MTF), a model designed to discriminate among tasks according to their cognitive complexity. We also tested the relationship between mathematics content knowledge and problem length on the preservice teachers’ evaluations. Twenty-six undergraduate students enrolled in an elementary mathematics methods course at a large urban university were introduced to the MTF and cognitive complexity during a class lecture and were subsequently required to sort 32 mathematics problems according to the framework. Results demonstrated that overall, the preservice teachers had more difficulty accurately classifying problems considered to represent high levels of cognitive complexity compared to problems that were less complex. Those with strong mathematics content knowledge, as measured by a standardized test, were able to sort the problems more accurately than those with weaker content knowledge. Two open-ended items assessing content knowledge were not related to sorting performance. Finally, the preservice teachers were influenced by the surface characteristic of task length; the data indicated that the teachers tended to label short problems as less cognitively demanding and long problems as more so. Implications for preservice professional development include an increased emphasis on mathematics content knowledge as well as expert modeling of the identification of deep conceptual principles at the heart of the mathematics curriculum. 相似文献
Abstract: Though it is being widely argued that expanding young people's capacity to learn is a viable and desirable goal of education, it it not always clear what this means, how it is to be achieved, and how the effectiveness of interventions is to be assessed. It is argued that the capacity to learn should be interpreted as a portmanteau term that comprises a varied set of positive learning dispositions. These are illustrated, and the idea of 'expansion' is glossed in terms of broadening, strengthening and deepening these dispositions. 相似文献
