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161.
Complementarities of innovation activities: An empirical analysis of the German manufacturing sector 总被引:2,自引:0,他引:2
Claudia Schmiedeberg 《Research Policy》2008,37(9):1492-1503
Innovation strategies in manufacturing often involve internal R&D activities as well as external partnerships. Thereby it is not clear if internal and external activities are complements or substitutes. This paper tests for complementarity of different innovation activities, i.e. internal R&D, R&D contracting, and R&D cooperation. The empirical analysis of cross-sectional firm level data of the German manufacturing sector comprises both indirect and direct complementarity tests; it is based on data from the German part of the Community Innovation Survey (CIS 3). The results provide evidence for significant complementarities between internal R&D and R&D cooperation, but cast doubt on the complementarity of internal and contracted R&D, since a productivity effect on firms’ patenting probability or sales with new products cannot be found. 相似文献
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163.
Teresa Schaefer Claudia Magdalena Fabian Tobias Kopp 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(4):1406-1419
Research stresses the importance of social components in learning. The social contact with peers and tutors stimulates reflection and supports higher processes of learning necessary for the internalisation and application of new knowledge. However, merely proposing opportunities for interaction does not necessarily lead to fruitful discussion and collaboration. Social presence and facilitation are key concepts for successful mutual learning. Both are represented in Murphy’s collaboration model; social presence forms the basis of collaboration on which discussions and co-construction of knowledge evolve. Facilitation supports the entire collaboration process. In this paper, an adjusted version of Murphy’s model was applied to analyse 1085 comments shared in an online course between career practitioners of a public employment service. The results show that without a dedicated tutor, learners can still be involved in collaborative learning and co-construction of new knowledge provided that the topic under discussion is highly relevant and controversial. Learners themselves take over social presence and facilitation activities, but less frequently than when a professional tutor facilitates discussions. Ex post summative evaluation revealed that only a few learners applied the gained knowledge in the long-term. As comparisons with related research suggest, higher facilitation support leading to a higher cognitive interaction with the learning could have better supported the transfer to practice. 相似文献
164.
This study continues research previously conducted by a nine‐university collaborative, the Salish I Research Project, by exploring science teachers' beliefs and practices with regard to inquiry‐oriented instruction. In this study, we analyzed the relationship among secondary science teachers' preparation, their beliefs, and their classroom practices after completion of a course designed to provide authentic inquiry experiences. From Teacher Pedagogical Philosophy Interview data and Secondary Science Teacher Analysis Matrix observational data, we analyzed links between the teachers' conveyed beliefs and observed practice regarding the teachers' actions (TA) and students' actions (SA). Also presented is a listing of teachers' perceived influences from university preparation course work. Results indicated that 7 of the 8 teachers professed a belief in teacher‐centered or conceptual style with regard to TA and SA. The observational results indicated that 7 of the 8 teachers displayed a teacher‐centered or conceptual style with regard to TA and SA. Inconsistencies between interview and observational data were unexpected, as half of the teachers professed slightly greater teacher‐centered styles with regard to TA than what they actually practiced in their classrooms. All teachers reported that an inquiry‐based science course was valuable. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 938–962, 2006 相似文献
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166.
Claudia Pineda Marin Maria Teresa Munoz Sastre Diego Alfonso Murcia Mateo Bernal Castañeda Angie Briceño Hernández 《Sex education》2019,19(5):582-596
The goal of this study was to investigate the attitudes of Colombians with respect to what can and what must not be said to young people of different ages and genders regarding sexuality. A convenience sample of 329 adults, aged 18–64 years, living in Bogotá participated in the study. They were presented with a set of 36 vignettes describing situations in which either a young girl or a young boy seemed to be concerned about sexuality and sexual relationships. Each scenario contained three items of information: the child’s gender, age and the parent’s decision (e.g. not to say anything regarding sexuality). Through cluster analysis, seven qualitatively different sets of attitudes were found. The five most common ones were: (i) it is never appropriate to talk about sexual matters (6%); (ii) delegate this responsibility to the school nurse (4%); (iii) provide incomplete information restricted to the biology of sexuality (11%); (iv) provide comprehensive information but with a recommendation of abstinence (28%); and (v) provide comprehensive information and a recommendation of pre-marital sexual experience (36%). Although it was expected that attitudes would vary as a function of the young person’s gender and age, such variations proved to be limited in their extent. 相似文献
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168.
Ann M. Berghout Austin Michael K. Godfrey Claudia Weber Cherie A. Martin Linda B. Holmes 《Early education and development》1991,2(3):214-226
Block (1984) postulated that children develop a personal premise system concerning the nature of relationships from the kind of responsiveness, balance, and control they experience when interacting with the caregiver and the caregiver's degree of accessibility during caregiver-child interactions. Block's theory was used in this review to discuss how children's personal premise systems or models of relationships develop through the process of attachment to the caregiver, and how, as children establish more extensive social relationships, this premise system becomes a more generalized model of self and others which shapes all interactions with others including peer relationships during early and middle childhood. The review also suggests continuity in the organization of behavior, for just as the nature of the early personal premise system is shaped by caregiver responsiveness, control, consistency, and availability, so the quality of ties youngsters form with their peers seems also to be shaped by the tone of children's responsiveness to peers, the degree and kind of control youngsters exert in peer interactions, the consistency of behaviors with peers, and children's emotional and physical availability to peers. 相似文献
169.
Claudia Mills 《Children‘s Literature in Education》2002,33(3):167-174
This essay provides a close reading of The Hundred Dresses by Eleanor Estes. It argues that the story's two themes—a celebration of artistic creativity and a ringing denunciation of prejudice—are closely related through their reliance on the importance of imagination, both artistic and moral. The role of moral perception in ethical decision making has recently come under new scrutiny in moral philosophy. This essay employs recent work in moral theory to analyze the way in which the resolution of Estes's story turns on the characters' growth in both moral courage and moral imagination. 相似文献
170.
Tanya Tavassolie Claudia López Jessica De Feyter Suzanne C. Hartman Adam Winsler 《The Journal of educational research》2018,111(3):331-344
Little is known about the early educational performance of children in migrant farmworker families. The authors examined the school readiness and early school success of 289 four-year-old preschool children of migrant families attending Redlands Christian Migrant Association centers. Children's school readiness was assessed and public school records were used for longitudinal follow-up. Children improved on age-4 school readiness domains, and although some struggled with emergent English literacy, many performed well on school readiness measures and later coursework. Children quickly became proficient in oral English, and had above-average school attendance. Many scored low on high-stakes tests; however, typically well enough for grade promotion. Students in the sample were comparable to similar students in poverty. School teachers and administrators should have high expectations for students from migrant families because many of them do stay in the public school system, and appear to be quite resilient despite many challenges they face. 相似文献