排序方式： 共有4条查询结果，搜索用时 7 毫秒
1
1.
Many eco-innovations have been linked to technical change in the ICT domain. Leveraging the distinctive features of general purpose technologies, ICT have the potential to steer green growth and to help decouple this growth from ecological damage. The paper aims to shed light on innovation dynamics in this emerging sector by investigating the patterns of innovation in the green ICT domains using granted EPO patent data from 1986 to 2006. By means of a network analysis, it identifies existing green ICT domains and examines the characteristics of innovative activity in these domains, focusing in particular on growth and technological pervasiveness, as well as on the variety of innovators. Results indicate that the innovative activity in green ICT domains is characterised by high growth and high levels of technological pervasiveness, considerable entry of new innovators and a variety of actors – with a prevalence of large ICT firms and universities. However, the analysis highlights the existence of three different clusters – emerging fields, established fields and mature fields – that are defined by different structures of innovative activities and by different technological opportunities. 相似文献
2.
Communication is considered to be one of the most essential components of collaboration, but our understanding as to which form of communication provides the most optimal cost-benefit balance lacks severely. To help investigate effects of various communication channels on a collaborative project, we conducted a user study with 30 pairs (60 participants) in three different conditions – co-located, remotely located with text chat, and remotely located with text as well as audio chat, in an exploratory search task. Using both quantitative and qualitative data analysis, we found that teams with remotely located participants were more effective in terms of being able to explore more diverse information. Adding audio support for remote collaboration helped participants to lower their cognitive load as well as negative emotions compared to those working in the same space. We also show how these findings could help design more effective systems for collaborative information seeking tasks using adequate and appropriate communication. We argue that collaboration is an important aspect of human-centered IR, and that our work provides interesting insights into people doing information seeking/retrieval in collaboration. 相似文献
3.
在图书招标采购中,图书馆力争以最合理价格买到满意的图书,实现资金效益最大化,而中标的馆配商则追求利润最大化,意图以最小的成本履行合同,二者利益明显存在冲突。图书馆和馆配商为实现各自目标而各尽所能,效果体现在馆配图书质量上,馆配图书质量高低取决于它们之间利益博弈的结果。因此,图书馆应采取合理的评标标准,尽可能避免"最低价中标"导致合同不完全履行现象发生,并严格验收程序,杜绝不合格图书进馆,以期获得理想的图书采购质量。 相似文献
4.
Research Findings: The present study investigated the social and cognitive precursors of vocabulary knowledge in 239 Turkish preschoolers both concurrently (Time 1 [T1] Mage = 53.29 months, SD = 10.19) and subsequently 1 year later (Time 2 [T2] Mage = 65.40 months, SD = 10.55). We examined the role of parenting behaviors by focusing on emotional and stimulation aspects of parenting (maternal warmth and inductive reasoning) and children’s inhibitory control skills in vocabulary comprehension. The results showed that T1 maternal warmth was linked with neither concurrent nor subsequent vocabulary knowledge, whereas T1 maternal inductive reasoning predicted vocabulary knowledge 1 year later. On the other hand, T1 inhibitory control predicted vocabulary knowledge at both time points, even when the child’s age and SES were controlled. T1 vocabulary knowledge mediated the links from T1 inhibitory control and SES to T2 vocabulary knowledge. The findings highlighted that parenting, children’s regulation skills, and broader contextual variables (SES) are all involved in the development of children’s vocabulary knowledge. Practice or Policy: The findings provided a nuanced understanding of the relation between aspects of parenting and vocabulary knowledge by showing that not maternal warmth but inductive reasoning is crucial for enhancing word comprehension of preschoolers. 相似文献
1