Teachers and the emotional dimensions of class in resource‐affected rural Australia     

Barbara Pini  Robin Price  Paula McDonald 《British Journal of Sociology of Education》2010,31(1):17-30

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Things Fall Apart and Come Together: Using the Visual for Reflection in Alternative Teacher Education Programmes     

Claudia Mitchell  David Dillon  Teresa Strong‐Wilson  Kathleen Pithouse  Faisal Islam  Kevin O’Connor 《Changing English: An International Journal of English Teaching》2010,17(1):45-55

In this article, we focus on the use of the visual for reflection in ‘alternative’ pre‐service teacher education and, in particular, we address the question: How and what can we learn about teacher education using the visual? By way of illustration, we focus on the use of pre‐service teachers’ photographs in a public exhibition, participatory video documentary production and pre‐service teachers’ use of photographs in their professional teaching portfolios. The article draws from research done in relation to three alternative pre‐service teacher education projects based at McGill University in Canada and the University of KwaZulu‐Natal in South Africa.  相似文献   

Droplet dispensing in digital microfluidic devices: Assessment of long-term reproducibility     

Elvira KS  Leatherbarrow R  Edel J  Demello A 《Biomicrofluidics》2012,6(2):22003-2200310

We report an in-depth study of the long-term reproducibility and reliability of droplet dispensing in digital microfluidic devices (DMF). This involved dispensing droplets from a reservoir, measuring the volume of both the droplet and the reservoir droplet and then returning the daughter droplet to the original reservoir. The repetition of this process over the course of several hundred iterations offers, for the first time, a long-term view of droplet dispensing in DMF devices. Results indicate that the ratio between the spacer thickness and the electrode size influences the reliability of droplet dispensing. In addition, when the separation between the plates is large, the volume of the reservoir greatly affects the reproducibility in the volume of the dispensed droplets, creating "reliability regimes." We conclude that droplet dispensing exhibits superior reliability as inter-plate device spacing is decreased, and the daughter droplet volume is most consistent when the reservoir volume matches that of the reservoir electrode.  相似文献   

Early Attachment Organization Moderates the Parent–Child Mutually Coercive Pathway to Children's Antisocial Conduct     

Grazyna Kochanska  Robin A. Barry  Sarah A. Stellern  Jessica J. O'Bleness 《Child development》2009,80(4):1288-1300

This multimethod study of 101 mothers, fathers, and children elucidates poorly understood role of children's attachment security as moderating a common maladaptive trajectory: from parental power assertion, to child resentful opposition, to child antisocial conduct. Children's security was assessed at 15 months, parents' power assertion observed at 25 and 38 months, children's resentful opposition to parents observed at 52 months, and antisocial conduct rated by parents at 67 months. Moderated mediation analyses indicated that in insecure dyads, parental power assertion predicted children's resentful opposition, which then predicted antisocial conduct. This mechanism was absent in secure dyads. Early insecurity acts as a catalyst for a dyad embarking on mutually adversarial path toward antisocial outcomes, whereas early security defuses this maladaptive trajectory.  相似文献   

So young and already victims of stereotype threat: Socio-economic status and performance of 6 to 9 years old children on Raven’s progressive matrices     

Michel Désert  Marie Préaux  Robin Jund 《European Journal of Psychology of Education - EJPE》2009,24(2):207-218

The aim of this study was to verify whether children from low socio-economic status (SES) are victims of stereotype threat. Children in first grade (6 to 7 years old) and third grade (8 to 9 years old) performed Raven’s progressive matrices, an intellectual ability test commonly used by psychologists. The test was presented either with the (evaluative) instructions recommended by Raven et al. (1998) or with non evaluative instructions. Children’s SES and beliefs concerning differences of abilities at school as a function of SES were also assessed. The results indicated that, as early as first grade, participants believed that children from high SES are better at school than children from low SES. Furthermore, low SES participants’ performance on the Raven’s matrices was lower in the evaluative condition than in the non evaluative condition. The experimental instructions did not affect high SES participants’ performance. The discussion explores implications of these results in the use of standardized tests to assess the intellectual abilities of low SES children.  相似文献   

Effects of reflection prompts on learning outcomes and learning behaviour in statistics education     

Robin Stark  Ulrike-Marie Krause 《Learning Environments Research》2009,12(3):209-223

Starting from difficulties that students display when they deal with correlation analysis, an e-learning environment (‘Koralle’) was developed. The design was inspired by principles of situated and example-based learning. In order to facilitate reflective processes and thus enhance learning outcomes, reflection prompts were integrated into the learning environment. A total of 57 university students were randomly assigned to two experimental conditions: 28 students were prompted to give reasons for their decisions while working within the learning environment (EG 1); and 29 students dealt with Koralle without being prompted (EG 2). The control group consisted of 67 students who had already attended regular statistics lectures but had no access to the e-learning environment. EG 1 scored significantly higher in the posttest than EG 2, and the effect was practically relevant and sustainable. Reflection prompts did not influence time on task, task choices and motivational outcomes. Both experimental groups clearly outperformed the control group.  相似文献   

Success in Only 10,000 Hours: *Provided you are lucky,have the right connections,speak the right language,and …     

Desiree O. Abu-Odeh  David M. Rittenhouse  Natashay J. Bailey  Yodit A. Tesfaye  Robin Wright 《CBE life sciences education》2009,8(3):169-171

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Speaking but not listening? Accountable talk in an unaccountable context     

Robin Alexander 《Literacy》2010,44(3):103-111

Taking the 2009 UKLA conference theme of “making connections and building literate communities” and recalling Hoggart's plea for literacy to be critically and morally engaged rather than merely functional, this paper calls for a reassessment of the pursuit of literacy in schools so as to connect the language of learning with the language of democratic participation. Given what we know about the way classroom talk mediates both learning and culture, the paper takes such talk as its focus, comparing the author's principles of dialogic teaching with Resnick's criteria for accountable talk. The paper then contrasts these idealised versions of the discourse of pedagogy with the public discourses of power, noting the prevalence of four discourse types – derision, dichotomy, myth and meaninglessness – through which, in pursuit of political goals, governments rewrite history, simplify the problematic, dignify the mundane and marginalise unpalatable evidence. This prompts an addition, in the interests of meaningful citizenship as well as effective learning, to Resnick's criteria of accountability to the learning community, standards of reasoning and knowledge: accountability to language itself.  相似文献   

Early detection of fungal biomass on library materials     

Nick R. Konkol  Christopher J. McNamara  Ethel Hellman  Ralph Mitchell 《Journal of Cultural Heritage》2012,13(2):115-119

Library materials are susceptible to fungal deterioration. The paper constituents of archival materials are subjected to harmful physical and chemical processes as they are slowly consumed by fungi. Remediation of fungal contamination can be costly and risk further damage to fragile or previously degraded materials. Early detection of fungal growth would permit the use of relatively noninvasive treatments to remediate fungal contamination of artifacts before visible or lasting damage has occurred. Current methods used for the detection of microbial biomass, such as colony counts, microscopic biovolume estimation, and ergosterol analysis are expensive, time consuming, or are inappropriate for use with fungi. Beta-N-acetylhexosaminidase (EC 3.2.1.52) activity provides a rapid and reliable means of fungal detection on a variety of cultural heritage materials. Adapted for use on archival materials, fluorogenic 4-Methylumbelliferyl (MUF) labeled substrate N-acetyl-Beta-D-glucosamine (NAG) was used to detect fungal beta-N-acetylhexosaminidase activity. The fluorescence generated by minute quantities of fungi was quickly detected at an early stage of growth. The sensitivity of the assay was comparable to other biochemical techniques. The fluorometric assay was well-suited for early detection of fungal biomass on paper and assessment of the effectiveness of common remediation practices.  相似文献   

The quest for full text: an in-depth examination of Pubget for medical searchers     

Featherstone R  Hersey D 《Medical reference services quarterly》2010,29(4):307-319

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