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41.
随着经济的发展、科研实验的剧增和高校的扩招,实验室产生的三废越来越多。因此,将各种实验废水进行回收处理,变废为宝,这对保护环境、节约资源具有重大意义。设计不同方案从"三氯六氨合钴(Ⅲ)的合成和组成的测定"的实验废水中分别提取银、钴、碘等元素并对所得物质进行了定性定量分析。 相似文献
42.
Woong Lim Ji-Won Son Dong-Joong Kim 《International Journal of Science and Mathematics Education》2018,16(3):519-538
This study examined preservice teachers’ (PSTs) capacity for lesson planning in a university-based teacher preparation program in the USA Participants (n?=?126) wrote lesson plans in three approaches: synthesis, creation, and modification. Findings indicate that PSTs who modified preexisting lesson plans produced better lesson plans than their peers and reported higher efficacy in their use of the lesson plan in their field experiences. This study supports the notion that the efficacy of first-year teaching lies more appropriately in the area of enacting curriculum than in the area of designing curriculum. With respect to career-long learning, PSTs’ abilities to do curriculum work are likely to improve, as they grow more familiar with students and existing excellent curricula over years. Although the study presents a snapshot of U.S. preservice teachers’ capacity for curriculum design, the findings may serve to inform the literature on the developmental aspect of curriculum design for teacher education systems across the world. 相似文献
43.
Catherine Krantz-girod Raphae¨l Bonvin Jacques Lanares Seágoleine Cueánot Franc¸ois Feihl Fred Bosman 《Assessment & Evaluation in Higher Education》2004,29(1):123-133
The second preclinical year of the medical curriculum at the Medical Faculty of the University of Lausanne in Switzerland includes nine multidisciplinary organ-system-oriented modules consisting of lectures and problem-based-learning tutorials. This study reports the experience accumulated with the evaluation of lectures during the academic years 1998–1999 and 1999–2000. The ratings of the different modules were highly variable, indicating the ability of students to have a critical view on the teaching and the teachers. There was a close to very close correlation between the ratings obtained during the two study years. The high discriminative capacity of students in evaluating the teaching and the teachers was also supported by their critical point of view expressed in free comments. Our observations stress therefore the reliability of teaching evaluations systematically performed by medical students. 相似文献
44.
专利池究竟是激励还是阻碍了创新？除了专利池本身引致的创新效应，各专利池之间密集的企业间重复联盟关系网络也极有可能产生创新效应。本文着眼于专利池重复联盟关系网络，以国际专利池管理机构MPEGLA管理的12个对外披露信息的专利池联盟内成员为研究样本，构建2 775组专利池联盟配对，实证探究专利池重复联盟关系对其成员技术创新的激励效应，并分析探索性合作、学习强度与相对核心地位在其中所起的作用。研究发现：专利池重复联盟关系与成员创新绩效之间呈倒U形关系；探索性合作、学习强度和相对核心地位均对重复联盟关系与创新绩效之间的倒U形关系起显著负向调节作用。 相似文献
45.
This article examines how South Korean and Japanese public diplomacy organizations employ digital media to embrace the principle of ‘networked public diplomacy’ through analyses of the web and social media practices. A network analysis was used to map interorganizational information networks among core public diplomacy organizations in each country. To reveal the key organizations' communication strategies on Facebook, a content analysis was also conducted. The findings indicate that Japan had a strong internal network infrastructure achieved through dispersed connections and partnerships; however, Korea had a centralized network, including a limited number of dominant actors. The results of content analysis suggest that both South Korea and Japanese public diplomats focused on promoting their cultural products and national values through their use of texts and visual images. In addition, user profile analysis gaged the degree of users' engagement in the organizations' profiles and identified the demographic features of users. Comparative data suggest the Korean public diplomacy organization was more successful at attracting and engaging with foreign public than the Japanese public diplomacy organization. These results imply that although these two countries had similar sociopolitical backgrounds and perspectives of public diplomacy, they had distinct forms of internal information networks, communication strategies, and social networking performances with public. 相似文献
46.
生态翻译学理论的问世给翻译研究带来了新的研究方法和理论支持。本文从生态翻译学视角运用这一理论来研究近代翻译大师苏曼殊的翻译实践,通过研究当时生态翻译环境与译者的选择之间的关系,发现苏曼殊适应翻译生态环境的同时能够发挥自己的主动性和创造性,使翻译作品具有自己的特点。 相似文献
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Seçil Gönültaş Bilge Selçuk Virginia Slaughter John A. Hunter Ted Ruffman 《Child development》2020,91(2):e280-e298
Using a between-groups design and random assignment, this study examined 214 Turkish children's (M = 11.66 years) mindreading and general reasoning about in-group members (Turks), similar out-group members (Syrians within Turkey) and dissimilar out-group members (Northern Europeans). Children heard four mindreading and four general reasoning stories with in-group or out-group members as targets. Whereas children's general reasoning about three groups was equivalent, accuracy of mental state inferences differed by target with more accurate mindreading of in-group targets compared to both sets of out-group targets. In this Turkish sample, mindreading of Syrian targets was the least accurate. Prejudice and perceived realistic threat predicted lower mindreading. These findings have important implications for understanding how similarity and intergroup processes play a role in children's mindreading. 相似文献