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161.
In 2002, the Bill & Melinda Gates Foundation started the Early College High School Initiative (ECHSI). Through this initiative, more than 200 Early College Schools (ECSs) opened by fall 2009. All of the schools aim to provide underserved students access to college classes while in high school. This article will provide an overview of the first 6 years of the ECHSI, and key findings across 5 years of the ECHSI evaluation, in particular highlighting how participants have implemented the ECHSI's core principles. However, the ECS is not a rigid model, and this article describes the variations in ECS implementation. Finally, this article documents outcomes such as attendance, grade-to-grade progression and graduation rates, student performance on assessments, and college credit accrual. 相似文献
162.
Andrea Sabina Taverna Olga Alicia Peralta 《European Journal of Psychology of Education - EJPE》2013,28(3):599-617
From an integrative approach, this work focuses on the role of conceptual mechanisms, such as comparison and conceptual-based inference, and sociopragmatic support in young children's taxonomic categorization. “Experiment 1” assessed whether 3-, 4-, and 6-year-old children succeed in detecting taxonomic relations on their own. A clear developmental trend was found: 6-year-olds succeeded, whereas 4- and 3-year-olds relied primarily on perceptually based categories. “Experiment 2” assessed if 3-year-olds are able to change their perceptual response into a taxonomic categorization as a function of the co-occurrence of contingent category information and feedback in an interactive process with an adult (experimenter). A pretest–posttest training study compared 3-year-olds' performance in four conditions: comparison, conceptual-based, information-only, and feedback-only. A perceptual–totaxonomic shift was found only in the comparison and conceptual-based training groups. Children who only received either category information or corrective feedback did not make such a shift. The results show that social interaction with supportive adults is a mechanism that drives conceptual understanding in early childhood. 相似文献
163.
Dr Hilary McQueen Susan Hallam Andrea Creech Maria Varvarigou 《International Journal of Lifelong Education》2013,32(3):353-377
The basis of this article is findings from the Music for Life Project which investigated the benefits and challenges of music activity participation for the over 50s in three case study sites in the United Kingdom. The paper uses a philosophical lens to explore the leaders’ and participants’ views on the purpose of the activities, how learners are characterised, the role of the activity leader, and the use of assessment. Data from 147 participant and 13 activity leader questionnaires, from 28 participant and 13 activity leader individual interviews, and from 15 participant focus groups were analysed within a philosophical framework that refers to six approaches: liberal, progressive, behaviourist, humanistic, radical and analytic. NVivo and SPSS assisted with the quantitative and qualitative analyses. The analyses indicated that humanism was prevalent although other approaches, particularly behaviourist and progressive, were evident. Activity leaders’ emphasis on humanism might lead to more concern with the comfort side of participation than with musical progression. There was very little use of formal assessment or feedback to support progression. There was some discrepancy between purposes for participation between leaders and participants. There might be a need to clarify purpose, particularly if activities are part of adult education rather than adult social groups. 相似文献
164.
Andrea Principi Carlos Chiatti Giovanni Lamura Frerich Frerichs 《Educational gerontology》2013,39(2):83-106
This article reviews recent international literature on the opportunities and restrictions experienced by older people to act as volunteers in civil society organizations. Our aim was to develop a conceptual framework applicable to the European ageing society. This aim was pursued through a computerized database search focused on studies analyzing the individual, organizational, and/or societal levels. Findings show that senior volunteers are characterized by “younger” age, good health, and a high level of both educational and socioeconomical status. Volunteers are involved mainly in religious organizations as well as in social and personal care, while main barriers are represented especially by ageist practices. The review shows that the debate on this topic has been barely developed in Europe, both from an individual and societal point of view. Therefore, European countries might take advantage from experiences made in other contexts, but the identification of how this can occur requires further and more specific cross-national research. 相似文献
165.
ABSTRACTThe present paper considers the use of longitudinal qualitative research (LQR) as a means to capture both change and stability in people’s lives. We use an LQR study conducted in continuing care retirement communities to demonstrate three dimensions that should be taken into consideration when addressing change vs. stability. Three waves of interviews with older adults and their family members as well as memos and reflections concerning interview data are used. The first dimension concerns the question of: “who defines change?” A second dimension raises the question of, “what has changed?” Finally, a third dimension concerns the timeframe of change. We argue that LQR provides a tremendous richness of time dimensions and perspectives. Discrepancies between dimensions, perspectives and timeframes can be particularly enriching. Moreover, LQR allows also for the opportunity to examine stability. 相似文献
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168.
ABSTRACTChalconatronite, Na2[Cu(CO3)]2·3H2O, is formed as a corrosion product when copper alloys are exposed to sodium carbonate solutions in the air. This also happens when metals come into contact with corroding soda glass which forms alkaline surface films in reaction with humidity from clean air. More often, substantial amounts of formaldehyde are present indoors which react to formate via the Cannizzarro reaction and accumulate over time in the films. Twenty cases of chalconatronite (including two mentioned in the literature) are reported as occurring on heritage objects with glass in contact with copper alloys: Baroque reliquaries with set glass gems, enamel on metal (sixteenth century and a modern replica of intentionally unstable composition), Christmas tree glass baubles with wires, glass buttons with metal shanks, a glass figure with a wire support, miners’ lamps, and a glass framed daguerreotype. These confirmed identifications might help conservators in investigating similar cases to shed more light on the formation conditions. 相似文献
169.
The Urban Review - This research article reports on the initial findings of a critical quantitative study, which developed and implemented a series of quantitative scales utilizing... 相似文献
170.