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71.
Volker Trommsdorff Katrin Talke 《科研管理》2004,25(Z1):125-132
本文研究的目的是确定市场开发活动对NPD项目绩效的影响.假设为(a)市场进入战略及活动会直接提高创新绩效;(b)市场进入战略在对内外部市场开发活动不断熟悉的基础上正直接影响着创新绩效;(c)内部市场开发战略是在不断熟悉外部市场开发活动的基础上来提高创新绩效的;(d)市场进入过程中创新绩效的效果取决于创新的程度.为了证明假设的合理性,我们利用特定的测量模型建立了有效可靠的方法对134个NPD项目的数据进行收集和分析,然后根据路径模型验证创新的主要影响因素并对所提出的假设进行了大量的回归分析.结果表明市场进入活动对于NPD项目绩效有很大的影响,特别是市场开发战略及外部市场的开发活动会明显提高NPD项目的绩效. 相似文献
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73.
How top management team diversity affects innovativeness and performance via the strategic choice to focus on innovation fields 总被引:1,自引:0,他引:1
Past innovation research has largely neglected potential effects of corporate governance issues on strategic choices, and thereby on innovation management outcomes. The theory of upper echelon implies that strategic choices result from idiosyncrasies of top management teams (TMT). Building on this theory, we hypothesize that TMT diversity enhances firm performance by facilitating an innovation strategy that increases the firm's new product portfolio innovativeness. Our findings support the relevance of considering a corporate governance view for explaining innovation outcomes. Empirically, we can show that TMT diversity has a strong impact on the strategic choice of firms to focus on innovation fields. Such focus then drives new product portfolio innovativeness and firm performance. As corporate governance arrangements thus seem relevant in the context of innovation management, we can derive implications for both policy makers and innovation researchers. 相似文献
74.
Consolidation of paint on stained glass windows: Comparative study and new approaches 总被引:2,自引:0,他引:2
Stained glass windows belong to the most precious pieces of art in many European countries. Examples of heavily endangered paint on glass are reported in the literature and mainly related to condensation effects and air pollution, as stained glass windows preferably remain in their original architectural surrounding. Several surface coatings and paint treatments have been proposed to consolidate and protect degraded paint. Very often, the selection of the materials is based more on practical aspects than on scientific research. This study concerns the comparison of some traditional, modern and newly developed consolidants for the preservation of historic glass paintings. Experiments have been carried out with model painted glass samples simulating weathering phenomena of originals. Traditional materials like Paraloid B72, modern ones like SZA (proposed by the Fraunhofer-Institut für Silicatforschung, ISC), and three new consolidants prepared by the sol–gel method and based on different hybrid organic–inorganic alkyl-alkoxysilane systems have been considered. The adhesion, penetration, stability, hydrophobicity, mechanical and chemical resistance are properties and requirements tested to prove their effectiveness and range of use. The three new materials developed in this study for the consolidation of paint on glass have the potential to offer alternatives to existing materials. Nevertheless, further research is necessary before their application in restoration workshops can be recommended. A strategic approach is requested to avoid risks for these valuable historical originals and to contribute to the long-term preservation of the paint on stained glass windows in their original sites. 相似文献
75.
Katrin Tiidenberg 《Popular Communication》2017,15(2):141-153
ABSTRACTThis article develops and troubles existing approaches to visual self-representation in social media, questioning the naturalized roles of faces and bodies in mediated self-representation. We argue that self-representation in digital communication should not be treated as synonymous with selfies, and that selfies themselves should not be reductively equated with performances of embodiment. We do this through discussing “not-selfies”: visual self-representation consisting of images that do not feature the likenesses of the people who share them, but instead show objects, animals, fictional characters, or other things, as in the practices of #EDC (“everyday carry”) and #GPOY (“gratuitous picture of yourself”) on platforms such as Tumblr, Facebook, Instagram, and reddit. We present an account of self-representation as an emergent, recognizable, intertextual genre, and show that #EDC and #GPOY practices are best conceptualized as instances of self-representation. 相似文献
76.
Using a picture pointing task, this study examines toddlers’ processing of phonological alternations that trigger sound changes in connected speech. Three experiments investigate whether 2;5‐ to 3‐year‐old children take into account assimilations—processes by which phonological features of one sound spread to adjacent sounds—for the purpose of word recognition (e.g., in English, ten pounds can be produced as te[mp]ounds). English toddlers (n = 18) show sensitivity to native place assimilations during lexical access in Experiment 1. Likewise, French toddlers (n = 27) compensate for French voicing assimilations in Experiment 2. However, French toddlers (n = 27) do not take into account a hypothetical non‐native place assimilation rule in Experiment 3, suggesting that compensation for assimilation is already language specific. 相似文献
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A multiple case study is reported aiming at comparing the degree of taking part and being engaged in classroom activities for children with and without reading and writing difficulties. Observations are made of 23 pupils with reading and writing difficulties (seven with a diagnosis of dyslexia), and 23 pupils in a control group; the observations concern accessibility to, taking part in, engagement and received help in classroom activities. The result is discussed in relation to the two goals in Swedish schools: ‘goals to attain’ and ‘goals to aim for’. A conclusion is that the two goals for the instruction in Swedish language involve a dilemma for teachers, since all children are expected to reach the ‘goals to attain’, while instruction is expected to be directed towards ‘goals to aim for’. 相似文献
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Katrin Muehlfeld Padma Rao Sahib Arjen van Witteloostuijn 《Journal of Media Economics》2013,26(2):107-137
Regulatory and technological changes have resulted in a surge in merger and acquisition (M&A) activity in the newspaper industry since the 1980s. This study investigates the “success” of these activities focusing on a particular facet of acquisition performance. We study the completion likelihood of an announced transaction, using a sample of M&A announcements from the newspaper industry (1981–2000). Results show that although firm-level characteristics are relevant, transaction-specific and regulatory factors are even more important. Not surprisingly, the attitude of the transaction—whether hostile or friendly—is a key factor, as are the method of payment and the percentage of control sought by the acquirer. The latter in particular reaffirms the prevailing view on the importance of regulatory influences on media M&As. 相似文献
79.
Kollmer Julia Schleinschok Katrin Scheiter Katharina Eitel Alexander 《Instructional Science》2020,48(5):569-589
Instructional Science - In this study, we investigated whether drawing after learning supports metacognitive monitoring especially when students are supported in their drawing efforts. Therefore,... 相似文献
80.
Katrin Häggström Westberg Marie Wilhsson Petra Svedberg Jens M. Nygren Antony Morgan Maria Nyholm 《Child development》2019,90(3):970-984
This study aims to understand the role that optimism could play in the context of a health asset approach to promote adolescent health-related quality of life (HRQOL). Adolescents (n = 948), between 11 and 16 years old from a medium-sized rural town in Sweden, answered questionnaires measuring optimism, pessimism, and HRQOL. The findings indicate a significant decrease in optimism and a significant increase in pessimism between early and midadolescence. The study has allowed us to present associational evidence of the links between optimism and HRQOL. This infers the potential of an optimistic orientation about the future to function as a health asset during adolescence and by implication may provide additional intervention tool in the planning of health promotion strategies. 相似文献