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A vast literature on technology transitions within industries suggests that early phases of new technologies are marked by periods of intense experimentation, but we know little about the conditions under which these periods emerge. We apply inductive, grounded theory-building techniques to examine what prompts firms to experiment across one emerging technology platform—plug-in electric vehicles (PEVs)—in China. Triangulating annual vehicle make and model sales data from 2003 to 2016 (plus monthly data from 2010 to 2016); 112 English and Mandarin archival documents from industry, academic, and news outlets; and 51 semi-structured interviews with industry, government, and academic stakeholders, we develop four in-depth case studies. We find that in contrast to the innovation trajectories of multinational and Chinese arms of joint venture (JV) firms, independent domestic Chinese firms (those with no history of international JV partnerships) are undertaking significant experimentation across multiple levels—infrastructure, core system, subsystem, and component—of the emerging PEV technology platform. We propose the concept of “institutional complementarities” to describe how interactions among institutions—here the national JV regulation and local market support and subsidies—may have turned regional markets into protected laboratories, extending the incubation periods for independent domestic firm experimentation. While this diverse experimentation may be an important antecedent of technology transition, consolidation induced by national policy standardization or competitive pressure may be required for PEV innovations to scale beyond their early, protected regional markets.  相似文献   
23.
This prospective study examined romantic partner selection and socialization among a sample of 78 young adolescents (6th–8th graders). Independent assessments of adolescent and romantic partner adjustment were collected before and after relationships initiated via peer nomination and self‐report. Prior to their relationship, adolescents and partners were significantly alike on popularity, physical attraction, and depressive symptoms. Controlling for initial similarity, partners’ popularity, depressive symptoms, relational aggression, and relational victimization significantly predicted changes in adolescents’ functioning in these areas over time. However, the magnitude and direction of change varied according to adolescents’ and partners’ prerelationship functioning. In general, adolescents who dated high‐functioning partners changed more than those who dated low‐functioning partners, and partner characteristics predicted greater change among low‐ versus high‐functioning adolescents. Results were consistent even when controlling for best friend characteristics. The current findings are among the first to demonstrate unique contributions of romantic partner characteristics to adolescents’ psychosocial functioning.  相似文献   
24.
It appears that being young and queer seems to be all about woundedness: it means experiencing suffering, including the risk of suicide, increased drug use, homelessness and violence. Yet how are these wounded truths told, and further, why is it that people in education seem to tell them "unproblematically"? This paper considers these questions by analysing wounded truth telling in the recent debate over the Western Australia Lesbian and Gay Law Reform Bill. Using <citeref rid="b7">Foucault's (2001)</citeref> discussion of Greek parrhesia (truth telling), the Western Australian debate is analysed in terms of its problematisation of wounded truth telling. Questions are raised regarding the implications of unproblematised educational practices that engage in the telling of wounded truths.  相似文献   
25.
In one study, parameters were estimated for constructed-response (CR) items in 8 tests from 4 operational testing programs using the l-parameter and 2- parameter partial credit (IPPC and 2PPC) models. Where multiple-choice (MC) items were present, these models were combined with the 1-parameter and 3-parameter logistic (IPL and 3PL) models, respectively. We found that item fit was better when the 2PPC model was used alone or with the 3PL model. Also, the slopes of the CR and MC items were found to differ substantially. In a second study, item parameter estimates produced using the IPL-IPPC and 3PL-2PPC model combinations were evaluated for fit to simulated data generated using true parameters known to fit one model combination or ttle other. The results suggested that the more flexible 3PL-2PPC model combination would produce better item fit than the IPL-1PPC combination.  相似文献   
26.
As the last century closed, and a bright new millennium dawned, the concept of ‘student voice’ within education emerged as something to be ‘identified’ and ‘captured’. In effect, it became reified and driven by a raft of government and institutional policies and strategic initiatives; initially within the compulsory sector, but soon followed by the post-compulsory sector as the 2000s moved on. In an increasingly quasi-consumerist environment, a mechanism had emerged with potential to ‘measure’ student satisfaction. Institutions quickly took up the ‘call to arms’, assigning responsibilities to ensure there was evidence of ‘student voice’ engagement; but there was no conversation with the ‘students’ about how this was experienced by them. This concept had become a ‘portmanteau’ term; a ‘catch all’ competing between two narratives—student voice as democratic and transformational; and student voice as ‘policy’ and strategic initiative. Formal research that could contribute to this discussion has been sparse and this paper takes a critical stance to the literature and policy, exploring the current status of student voice and proposing a research focus that has the potential to involve students in a discussion about how their voice is heard, and for what purpose.  相似文献   
27.
Public art is not just sculpture and mural painting: it can take the form of stained–glass windows, textile wall–hangings, mosaic pavements and works of art that are not even designed to be long–lasting or permanent. It is found in city squares, and secluded countryside; in National Health Service hospitals and the national headquarters of major companies. Public art can now be studied at any level from primary to postgraduate, and because art and its context are so closely related in these settings beyond the gallery, it affords a particularly rich object of analysis for all age groups. What has so far received relatively little attention is the way in which public art is read. An examination of works of art from France and America reveals that visual literacy cannot be seen in isolation, for how we read depends as much on what we bring to our reading as it does on the text or image we seek to understand.  相似文献   
28.
Abstract

Experiential learning theory places experience at the center of learning. Kolb’s four-stage cycle of experiential learning suggests that effective learners must engage fully in each stage of the cycle – feeling, reflection, thinking, and action. This research assesses the alignment of Kolb’s experiential learning cycle with the week-long Summer Institute of Assisting, Collaborating, and Training ESL Secondary Content Teachers (ACT-ESL), the first stage of a professional development model designed to train content teachers of English Language Learners (ELLs). Qualitative and quantitative data analysis from pre- and post-surveys determined positive changes in participants’ understanding of key ELL concepts, knowledge, and understanding of instructional strategies and practices. Analysis indicated that the Summer Institute had a large effect (d > 2.00 for each scale), regardless of previous training in ELL instructional strategies. Findings show that the Summer Institute incorporated the cycle of learning and tenets of Kolb’s experiential learning theory and evidenced teacher learning.  相似文献   
29.
Friendship is a generative topic because it covers questions about the self and the social, so encompassing the political, public, personal and interpersonal negotiation of difference. Friends can embody the resistance as well as the enactment of 'fixing' positions as shown within recent ethnographic work on friendship as identity work (Hey, 1997 , 'The Company She Keeps' , Open University Press). Theorised as a practice about making up and breaking up--about coming to understandings and mis/understandings--friendship has been taken as a metaphor as well as a statement about the im/possibilities of citizenship (Hey, 2001, 'Dancing Round Hanbags', University of Lisbon). This collection of Discourse articles on re-theorising friendship is exceptionally timely as the authors contribute to debates about the regulation of childhood as well as new times social theory. They reveal friendship as the site of reflexivity and tradition and in so doing show it as one of the few social and interpersonal relations in which young children can exercise any form of social control. These accounts might then be said to provide a particularly useful reality check upon the competing versions of 'the private (subject)' found in contrasting accounts of late modernity. In this article I seek to set this work on relationship cultures against a brief discussion of the current provenance of the subject in recent social theory. In scanning high abstraction I argue for more modest explorations in the making of inter- and intra-subjectivity associated with feminist poststructuralist work on class, gender and social difference.  相似文献   
30.
We examined Nonsense-Passage oral reading in adults, using data derived from new and previously published studies (Finucci et al 1976, Gross-Glenn et al 1985). Time-scores and error-frequency data are presented for five samples of non-dyslexic readers with a minimum of a high-school education and no childhood history of dyslexia (N=127). Considerable uniformity is demonstrated across these samples, and reading performance of non-dyslexic individuals contrasts sharply with that observed in four samples of adult familial dyslexics. Both affected and compensated-affected dyslexic subjects read the passages significantly more slowly and with more errors than did nondyslexic readers. Results are discussed in relation to the cognitive and neural processes that may underlie this specific reading difficulty in dyslexics. We have found Nonsense-Passage reading to be especially useful in family studies of inherited dyslexia as a means of quantifying oral reading deficits in adults who have learned to compensate for their children reading difficulties.  相似文献   
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