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Many learners may be successful in mathematics but nevertheless see themselves as existing only on the margins of the practice, or as lacking stability in it – in this sense, they have what can be called a fragile identity. Although this kind of relationship with mathematics is not limited to girls and women, they do appear to express such fragile identities more often or more readily. Drawing on qualitative and quantitative data from undergraduates in three English universities, this paper presents an analysis of the way in which university mathematics is differentially experienced by men and women, and of the part this may play in women’s ongoing narratives of self as mathematicians. It is suggested that some women resist traditional positionings in the mathematics world, drawing on local resources which enable a sense of agency as successful students and a refiguring of their relationships with mathematics. 相似文献
23.
Gerard A. Postiglione 《Higher Education》2011,62(6):789-814
This paper presents a perspective on the capacity of colleges and universities during past and present economic shocks. The
main argument is that the environment of the global recession—an Asia far more economically integrated than during past economic
shocks, with more unified aspirations to be globally competitive and socially responsible—no longer delay reforms in higher
education. In fact, the global recession has become an opportune time for higher education in Asia, specifically developing
countries in eastern (East and Southeast) Asia, to continue reforming governance and administration, access and equity, internal
and external efficiency, and regional collaboration. Economic shocks have accelerated reforms in higher education, especially
those for promoting innovation in their economies, though more is needed in improving governance and access for underserved
populations. This paper examines the cases of China, Mongolia, and Vietnam as examples of how the global recession and regional
integration are growing forces in shaping their higher education reform and development. The paper also identifies a series
of measures for increasing the resilience of higher education systems in serving poor and vulnerable populations during economic
recessions. Responses to the global economic recession by nations in eastern Asia are likely to improve the global shift in
economy and human capital. 相似文献
24.
Dimov N Muñoz L Carot-Sans G Verhoeven ML Bula WP Kocer G Guerrero A Gardeniers HJ 《Biomicrofluidics》2011,5(3):34102-3410212
To prepare a biosynthetic module in an infochemical communication project, we designed a silicon/glass microreactor with anti-adsorption polyelectrolyte multilayer coating and immobilized alcohol acetyl transferase (atf), one of the key biosynthetic enzymes of the pheromone of Spodoptera littoralis, on agarose beads inside. The system reproduces the last step of the biosynthesis in which the precursor diene alcohol (Z,E)-9,11-tetradecadienol is transformed into the major component (Z,E)-9,11-tetradecadienyl acetate. The scope of this study was to analyze and implement a multilayer, anti-adsorption coating based on layer-by-layer deposition of polyethylenimine/dextransulfate sodium salt (PEI/DSS). The multilayers were composed of two PEI with molecular weights 750 and 1.2 kDa at pH 9.2 or 6.0. Growth, morphology, and stability of the layers were analyzed by ellipsometry and atomic force microscopy (AFM). The anti-adsorption functionality of the multilayer inside the microreactor was validated. The activity of His(6)-(atf) was measured by gas chromatography coupled to mass spectrometer (GC-MS). 相似文献
25.
This paper contributes to the literature on the observed research funding and scientific productivity gender gap in science. On the basis of very detailed information for a sample of 276 academics at the University of Turin over a ten year period, we develop a robust new model that takes into account the three main stages of the funding-productivity nexus: applying for a grant, successful fund raising and conducting the research, to investigate at which stage the gender gap emerges. In the model, we control for differences – not previously examined together - in the time allocated to teaching, administration and child care, which might moderate the gender effect. Using a Two-Stage Least Square (2SLS) model we control, for selection into funding, endogeneity of career progress and endogeneity of funding success, and find, first, that researchers who apply for grants are active in teaching and administration and show persistent funding application behaviour, but find no evidence of a significant gender bias; second, when we control for application selection, the negative gender correlation with funding acquisition becomes stronger, while teaching is negatively correlated to the amount of funding raised; and, third, controlling for selection and reverse causality, we find that funding is not associated to higher research productivity. At all stages of the funding-productivity nexus we find negative, albeit insignificant, secondary gender effects associated with administrative tasks, but less so with teaching. In the research impact-quality estimations we provide evidence of a ‘motherhood penalty’ for female academics with young children who did not apply for funding (including evidence of a causal effect). In line with the literature, we find that, after controlling for children, female researchers are less productive in terms of publications, but not in terms of research quality or impact. 相似文献
26.
Roosmarijn M.C. Schelvis Gerard I.J.M. Zwetsloot Evelien H. Bos Noortje M. Wiezer 《Teachers and Teaching》2014,20(5):622-637
In this paper, we will explore the relevance, meaning and perspectives of teacher, team and school resilience. The central research questions are: does the concept of teacher, team and school resilience offer new and promising perspectives on persistent problems in the educational sector? And secondly; how can resilience at individual, team and school level potentially be strengthened? After an insight into the context of the educational system in the Netherlands, we describe the current challenges in the educational system and sector both internationally and for the Netherlands based on a dialogue with stakeholders, scientific literature and data from the Netherlands Working Conditions Survey 2010. We propose that the educational field would benefit from a proactive approach that includes interrelated levels of actors (i.e. individual, team and school). We elaborate on this argument by making use of four resilience-related theories developed in a variety of areas: Resilience Engineering (focusing on four abilities for resilience), organizational mindfulness (focusing on signalling early warnings threatening resilience), the human resource management perspective on resilience (focusing on constraint vs. commitment of employees) and resilience as a social system (focusing on resilience as an interpersonal asset). Each of these theories points out that multilevel approaches for developing resilience are useful. Thereafter, four abilities (anticipation, monitoring, responding and learning) that seem vital for the process of developing resilience are described and discussed at individual, team and school level making use of practical examples based on stakeholders’ experiences. We discuss that the resilience perspective is promising and deserves (co-created) experimentation in the educational sector. Due to the theoretical nature of this paper, the findings could be useful to set agendas, but they need carefully evaluated pilot projects for future confirmation. 相似文献
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28.
Embryoid body (EB) formation forms an important step in embryonic stem cell differentiation invivo. In murine embryonic stem cell (mESC) cultures EB formation is inhibited by the inclusion of leukaemic inhibitory factor (LIF) in the medium. Assembly of mESCs into aggregates by positive dielectrophoresis (DEP) in high field regions between interdigitated oppositely castellated electrodes was found to initiate EB formation. Embryoid body formation in aggregates formed with DEP occurred at a more rapid rate-in fact faster compared to conventional methods-in medium without LIF. However, EB formation also occurred in medium in which LIF was present when the cells were aggregated with DEP. The optimum characteristic size for the electrodes for EB formation with DEP was found to be 75-100 microns; aggregates smaller than this tended to merge, whilst aggregates larger than this tended to split to form multiple EBs. Experiments with ESCs in which green fluorescent protein (GFP) production was targeted to the mesodermal gene brachyury indicated that differentiation within embryoid bodies of this size may preferentially occur along the mesoderm lineage. As hematopoietic lineages during normal development derive from mesoderm, the finding points to a possible application of DEP formed EBs in the production of blood-based products from ESCs. 相似文献
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30.
Helen Askell-Williams Michael J. Lawson 《Asia-Pacific Journal of Teacher Education》2013,41(2):126-143
This paper reports an investigation into Australian primary school teachers’ knowledge and confidence for mental health promotion. Questionnaires were delivered to 1397 teachers. In-depth interviews were held with 37 teachers. Quantitative results showed that half to two thirds of teachers felt efficacious and knowledgeable about selected components of mental health promotion. Independent judgments by staff about students’ mental health status concurred with students’ scores on the Strengths and Difficulties Questionnaire in about 75% of cases, indicating a good level of staff awareness about students’ mental health status. Exposure to the KidsMatter Primary mental health promotion initiative was associated with improvements in teachers’ efficacy, knowledge and pedagogy, with small to medium effect sizes. Qualitative analysis indicated that teachers’ subject-matter and pedagogical knowledge were heavily reliant on curriculum resources. Implications of the findings for the implementation of school-based mental health promotion initiatives are discussed. 相似文献