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The relation between decoding and comprehensionin the oral and written modalities was studiedin a randomly selected group of nine-year-olds,subdivided into good, average and poordecoders. Performances on two types ofcomprehension tasks (story retelling andcloze tasks) were compared and related tophonological, syntactic and semantic abilities.(Story retelling demanded the ability to retellthe gist of a story, while the cloze tasksdemanded precise skills in drawing anaphoricreference across sentence boundaries.) Atwo-way analysis of variance using IQ ascovariate showed that poor decoders scoredlower than average and good decoders on allcomprehension tasks. This suggests a highdegree of interdependence between listeningcomprehension, reading comprehension anddecoding. The associated pattern of oralcorrelates furthermore varied with task demandsand to some extent, independent of modality.Vocabulary was related to the ability toretell a story. Syntax and, in particularphonemic awareness, were on the otherhand more strongly related to the ability todraw anaphoric reference. The results wereinterpreted in favor of ``the phonologicaldeficit hypothesis', but the interactionbetween linguistic sub-skills and task demandswas also underscored.  相似文献   
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This paper reports two experiments which focus on the object naming deficits of dyslexic readers. In Experiment 1, dyslexic and normal readers were asked to name objects depicted by pictures or following their spoken definition. Ten-year-old dyslexics named fewer objects correctly than other children of a similar age, performing only as well as a younger group of 8-year-old normal readers. This was true irrespective of the modality through which they were tested. In terms of naming latency, however, they were similar to comparison groups. In Experiment 2, nine-year-old dyslexic and normal readers performed as well as each other in a receptive vocabulary test in which pictures had to be matched to spoken words. However, once again, on a picture naming test, the dyslexics did less well than controls. We argue that dyslexic children are subject to verbal naming difficulties which cannot be accounted for by generally low levels of vocabulary knowledge. Their problems are attributable not to difficulties in semantic representation but to difficulties with the lexical-phonological representation of spoken words they know. We propose that, in turn, these difficulties are related to their memory and reading problems.  相似文献   
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ABSTRACT

The development of employees’ skills and competences has become a key driver of economic growth in the developed world. It is widely recognised that enhancing people’s skills and competences will be a major cause of future competitive advantage. Consequently, companies need to be able to identify precise areas where they have, or can build, distinctive competences. To meet these needs, various models and approaches for continuing engineering education have emerged. One such approach is the facilitated work-based learning (FWBL) model, the aim of which is to introduce an approach to tailor-made courses built on work-based learning (WBL) and problem-based learning (PBL). This paper addresses the implementation of tailor-made continuing engineering education in company settings through the use of FWBL. It draws on a huge amount of documentation produced within the Via Nord project, which was supported by the European Social Fund and engaged various companies in northern Denmark. The aim is to investigate how the FWBL model worked in practice when implemented as a means for tailor-made continuing engineering education applied in a company setting.  相似文献   
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The author offers an interpretation of why we resist associating the female sex with competence on the computer, and conversely, why the male sex is not regarded as a problem in terms of learning to deal competently with the computer. The aim of this paper is to investigate the relationship between gender and computers.  相似文献   
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While a good deal of research has examined the uses of Twitter in journalism, comparably few research projects employ comparative research designs in order to provide new insights. The present study details Twitter use by public service broadcasters (PSBs) during recent national elections in Norway and Sweden. Utilizing quantitative analysis of social media content in tandem with qualitative interviews with key PSB journalists, the main results indicate that while the PSB organizations—the Norwegian NRK and the Swedish SVT—are both frequently contacted by “regular” citizens on Twitter, they seem to prefer to retweet and interact with journalists, politicians or other “elite” users. Compared with the interviews performed, the study uncovers an interesting tension as journalists often talk about the need to engage with “regular” users—a practice that is arguably in line with PSB regulations, but that is seldom adhered to in the contexts studied here.  相似文献   
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A pragmatic theory of learning is introduced as a possible way of creating organizational learning and learning organizations. This learning theory rests upon what may be termed the inquiry metaphor. Two other metaphors of learning—the knowledge acquisition and the participation metaphor—are introduced as they are mirrored in the literature and in organizational development in practice. It is argued that the important element of organizational learning and learning organizations is the creation of an experimental arena for learning in which employees are able to engage in inquiry into workplace problems and, by doing so, develop their experiences with work and workplaces.  相似文献   
10.

Introduction:

The aim of the study was to identify biomarkers of alteration in bone mineral density (BMD) in patients on haemodialysis (HD) and peritoneal dialysis (PD).

Materials and methods:

In a cross-sectional, longitudinal study dual-energy X-ray absorptiometry scans were performed in 146 HD-patients and 28 PD-patients. Follow-up after 14 months (mean) was conducted in 73 patients. As potential biomarkers we investigated parathyroid hormone (PTH), 25-hydroxy vitamin-D, ionised calcium, albumin, phosphate, and total alkaline phosphatases (t-ALP).

Results:

Both groups of dialysis patients had lower BMD in the femoral neck (BMDneck) (P < 0.001) and forearm (BMDforearm) (P < 0.001) compared to healthy controls, but comparable BMD in the lumbar spine (BMDspine). BMD did not differ between dialysis types, but patients ever-treated with glucocorticoids had significantly lower BMD, while patients with polycystic kidney disease had higher BMD. BMD correlated with body weight, actual age, age at initiation of dialysis, duration of dialysis and levels of PTH and t-ALP. However, t-ALP only remained associated with low BMDspine after adjusting for other factors (P = 0.001). In the follow-up study all patients had decreased BMD in all three locations, but only for the lumbar spine there was a significant association between BMD and the bone markers t-ALP (P = 0.009) and PTH (P = 0.013).

Conclusions:

Both HD and PD patients have low BMD, and increased concentrations of t-ALP is associated BMDspine after adjustment, while PTH and t-ALP is associated with decrease in BMDspine over time. This substantiates the use of these biomarkers in both types of dialysis patients.  相似文献   
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