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91.
This paper investigates the determinants of R&D expenditure using a sample of UK listed companies with the highest spend from 2000 to 2005. We investigate the effect of corporate governance and ownership on R&D, using panel data. The results provide some evidence that more governance tends to depress R&D activity, a finding that is robust to whether a composite or disaggregated index of governance is used. One innovation of the paper is that we treat agency and finance effects interactively. The ownership stake of the CEO appears to be supportive for R&D.  相似文献   
92.
93.
The late nineteenth century American mass circulation press developed a style of ‘new journalism’ that gave rise to celebrity journalism. It is widely accepted that this new approach to reporting replaced news values with entertainment as a consequence of the need to cater to the tastes of a mass readership and this is seen to explain the incredible innovations that occurred in the press in the US at the time (Ponce de Leon; Roggenkamp; Tebbel; Turner; Schudson Discovering the News). This article questions this version of American press history by arguing that those papers also had to appeal to the politics of poor immigrants and the working class and that the conventions associated with celebrity overlapped and often coincided with a ‘radical’ populist campaigning style of reporting that was as important (and at times, more important) to building and sustaining mass readerships.  相似文献   
94.

Constructing explanations of scientific concepts is one of the most frequent strategies used in the science classroom and is a high-leverage teaching practice. This study analysed the explanations provided by student teachers in STEM areas from a socio-materiality perspective focused on verbal and nonverbal language and representations. The study was conducted in a hybrid research format by scholars and a preservice teacher. First, the study compared the representational elements used by 86 student teachers to construct explanations about various concepts in a roleplay setting. Next, a positioning analysis was done by a preservice teacher, to a selection of five of these explanations focused on the concept of “force”. The positioning analysis highlighted the embedded voices in the construction of explanations, with a focus on the intersection between science and language. The results showed that the student teachers created explanations as static artefacts, mainly using examples, graphs and images to clarify the concepts. The voices of learners and scientists were mostly absent from the explanations, which led to the presentation of explanations in STEM areas as finished and unquestionable artefacts, with references neither to nature nor to the history of science. We reflect on the meanings attributed to learning to be a practitioner in the context of interconnecting science and language through explanations, as a process of meaning (re)production within the classroom. Implications for teacher education are discussed in order to enhance student teachers’ awareness about constructing knowledge by enacting explanations in the science classroom.

  相似文献   
95.
With conference season upon us, consideration is given to the importance of subject‐specific and library association conferences. The biennial Health Libraries Group (HLG) conference meets both these criteria and takes place in Greater Manchester in July. The conference provides an opportunity for peer‐to‐peer learning, identifying new trends and professional rejuvenation. An open invitation is given to attend the Health Information and Libraries Journal‘Writing for Publication’ workshop at the HLG conference. An overview of three bursaries available from the Health Libraries Group and Library and Information Research, both groups of the UK Chartered Institute of Library and Information Professionals (CILIP) is provided. The bursaries offer opportunities to cover the costs of registration and travel expenses to national and international conference.  相似文献   
96.
This paper explores how mature female flight attendants [FAs] use Selection, Optimization and Compensation [SOC] strategies to cope with age-related diminishing resources at work. The role of FAs is an age-sensitive occupation, and in some organizations, women are under constant pressure to look young and attractive. This Interpretative Phenomenological Analysis study aims to add depth and nuance to our understanding of SOC strategies qualitatively; most published studies are quantitative. A homogenous sample of 5 mature single Filipina FAs, foreign workers employed by Arabian Gulf-based airlines, were interviewed through a semi-structured protocol. Recruitment was through a snowball process. The study found that FAs use SOC strategies to compensate for age-related decline. Off-duty, their focus is directed to activities that help them to meet the organizations’ expectations of youthful appearance and productivity. To achieve this, resources from other life domains are diverted, which leads to negative outcomes from focusing SOC strategies on only one aspect of life. Despite negative personal implications and concerns about the future, the participants still felt attached to their work identities. This shows the importance of understanding the use of SOC strategies within and across life domains, as well as their implications for career sustainability and workability. The use of such strategies at work when detrimental to other life roles is unsustainable. The findings highlight the importance of conducting more qualitative studies on SOC behaviors of specific groups, so the experiences of aging at work can be explored in more depth, allowing areas of concern to be identified.  相似文献   
97.
This content analysis reveals that men and women network news correspondents differed in how they covered 4 presidential elections (1992–2004). There were fewer women than men reporters involved in election coverage, but on average, women reported more stories than men and were tonally tougher watchdogs than men. In terms of framing candidates, male reporters were strongly associated with a masculine approach that emphasized the competitiveness of campaigns. By contrast, women correspondents employed both more feminine and gender-neutral frames than their male colleagues. These findings were interpreted against the backdrop of information derived from in-depth interviews with 5 women reporters who appeared in the sampled content.  相似文献   
98.
This article examines nonmathematical linguistic complexity as a source of differential item functioning (DIF) in math word problems for English language learners (ELLs). Specifically, this study investigates the relationship between item measures of linguistic complexity, nonlinguistic forms of representation and DIF measures based on item response theory difficulty parameters in a state fourth-grade math test. This study revealed that the greater the item nonmathematical lexical and syntactic complexity, the greater are the differences in difficulty parameter estimates favoring non-ELLs over ELLs. However, the impact of linguistic complexity on DIF is attenuated when items provide nonlinguistic schematic representations that help ELLs make meaning of the text, suggesting that their inclusion could help mitigate the negative effect of increased linguistic complexity in math word problems.  相似文献   
99.
Abstract

This paper scrutinises the educational knowledge requirements of craft, technical, and reflective professional conceptions of teaching, as recently outlined by Winch, Oancea, and Orchard. Drawing on Bernsteinian sociology of knowledge we identify the different requirements each conception makes of educational knowledge, and how it is envisaged that this knowledge will be used in educational practice. While craft conceptions dismiss the value of educational knowledge per se, they nevertheless value other forms of disciplined knowledge. Arguing that technical conceptions of teaching may be either narrowly instrumental or autonomous, we suggest that an advanced technical knowledge base requires a disciplinary aspect, while knowledge for purely instrumental purposes offers a reductive view of educational practice. Moreover, the varying notions of reflection suggested by reflective professional conceptions require certain forms of engagement with educational knowledge, which are challenged by contemporary reforms in teacher education globally. It is suggested that there are often interdependencies between forms of educational knowledge and conceptions of teaching, with potential implications for the trajectories of educational reforms. The argument is briefly illustrated with reference to the national contexts of Germany, England, and Finland.  相似文献   
100.
Co-assessment is a type of participatory assessment in which the teacher and student jointly discuss, negotiate and assess the student’s task or performance. Although the literature on co-assessment is scarce, some authors highlight the benefits for students of participating in co-assessment in higher education, including learning, improved communication, and greater assessment literacy. This study has a double objective: on the one hand, to analyse the strengths and limitations perceived by students participating in co-assessment practices; on the other hand, to explore the strengths, weaknesses, opportunities and threats perceived by professors participating in the experience. The study was developed in 8 class groups with the participation of 470 students and 4 teachers. The qualitative analysis of the data obtained from the questionnaires and focus groups indicates that the students acknowledged several strengths, among which learning from mistakes was prominent. Students also noted some limitations, particularly the lack of adjusted scoring. Professors offered another perspective that complemented the vision of their students, noting that co-assessment presents opportunities as well as risks that may jeopardise its implementation.  相似文献   
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