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151.
R. Rothwell C. Freeman A. Horlsey V.T.P. Jervis A.B. Robertson J. Townsend 《Research Policy》1974,3(3):258-291
Project SAPPHO consists of a comparative analysis of ‘paired’ successful and unsuccessful technological innovations, where one half of the pair is a commercial success and the other a commercial failure. In phase I of the project twenty-nine pairs were investigated, seventeen in chemical processes and twelve in scientific instruments. Five main areas of difference between successful and unsuccessful innovators emerged which related to the innovator's understanding of user needs, efficiency of development, characteristics of managers, efficiency of communications and marketing and sales efforts.In phase II, the project has been extended to include a new total of forty-three pairs, twenty-two in chemical processes and twenty-one in scientific instruments. The results of phase I have been confirmed with the same five underlying factors emerging as strongly differentiating between success and failure and with some inter-industry differences becoming clearer. These differences, by and large, relate to the basic structural and environmental differences which exist between the two industries.Following the statistical analysis a subjective review was made of thirty-four failure cases, and those factors which contributed maximally to the individual failures were identified. The results of this exercise support the results of the statistical analysis, but they also highlight some new and significant factors. Finally, some of the more important of the many hypotheses which have been forwarded as offering explanations for innovative success were tested in the tight of the phase II SAPPHO results. 相似文献
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Shaqwana Freeman‐Green Melissa K. Driver Peishi Wang Jessica Kamuru Dia Jackson 《Learning disabilities research & practice》2021,36(1):12-25
Culturally and linguistically diverse (CLD) students comprise a substantial population of students with learning disabilities, and are historically disproportionately represented in special education. To effectively teach CLD students with learning disabilities, teachers should integrate evidence‐based practices and culturally sustaining pedagogy in their practice. This article highlights several practical examples of culturally sustaining evidence‐based practices across the content areas of mathematics, reading, and writing. Suggestions for practice and future research are presented in the article. 相似文献
155.
Obtaining an electrocorticograms (ECoG) signal requires an invasive procedure in which brain activity is recorded from the cortical surface. In contrast, obtaining electroencephalograms (EEG) recordings requires the non-invasive procedure of recording the brain activity from the scalp surface, which allows EEG recordings to be performed more easily on healthy humans. In this work, a technique previously used to study spatial-temporal patterns of brain activity on animal ECoG was adapted for use on EEG. The main issues are centered on solving the problems introduced by the increment on the interelectrode distance and the procedure to detect stable frames. The results showed that spatial patterns of beta and gamma activity can also be extracted from the EEG signal by using stable frames as time markers for feature extraction. This adapted technique makes it possible to take advantage of the cognitive and phenomenological awareness of a normal healthy subject. 相似文献
156.
Michal Łukomski Vincent Beltran Foekje Boersma James Druzik Ashley Freeman Marcin Strojecki 《文物保护研究》2018,63(5):181-186
ABSTRACTThis experimental program, implemented by the Managing Collection Environment Initiative at the Getty Conservation Institute, has provided data about the response of historic objects to changes in relative humidity (RH). Alongside other less sensitive documentation techniques (visual observation, physical measurements, photography, and 3D scanning), acoustic emission (AE) was monitored for six historic, museum-like wooden objects exposed to gradually increasing RH variations. Quantitative calibration of AE sensors and an anti-correlation measuring scheme to reduce environmental noise allowed the AE system to effectively trace micro-damage development caused by environmentally induced stress. Using an epidemiological approach, with respect to sample selection and experimental protocol, the obtained results can be used to explore the acceptable range of climate fluctuations for museum collections. The study’s well-controlled environmental protocol also allowed for the examination of the concept of ‘proofed fluctuation’ by the analysis of object response to reoccurring conditions. 相似文献
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David Reeder was one of the most important conservers of the traditions of urban history scholarship established during the 1960s at the University of Leicester under the leadership of Professor H. J. Dyos. Among Reeder’s major achievements were the application of the skills and objectives of such scholarship to the history of education, and in turn his reminding of urban historians of the importance of the educational dimension within their studies. Reeder was also a key figure in the international diffusion of teaching and research in urban educational history, and in promoting an interdisciplinary perspective that drew together past and present studies of urban educational policy and related social issues. This tribute article places his work in the context of changing attitudes to the history of urban education from the early 1970s to the early 1990s, and focuses by way of illustration on collaborative work between its writer [BM] and David Reeder in national conferences and in contributions to publications on the subject. 相似文献
159.
Jared T. Freeman Bryan T. Thompson Marvin S. Cohen 《Interactive Learning Environments》2013,21(3):187-209
A Latent Semantic Index (LSI) was constructed from arguments made by navy officers concerning events in an anti-air warfare scenario. A model based on LSI factor values predicted level of domain expertise with 89% accuracy. The LSI factor space was reduced using MDS to five dimensions: aircraft route, aircraft response, kinematics, localization, and an unclassifiable element. Arguments in the localization category were reliably more common among officers with the greatest expertise. Automated classification of arguments into these elements achieved 84% accuracy. LSI may be a useful tool for automating aspects of modeling expertise and diagnosing knowledge deficiencies. 相似文献
160.
This study applies Eysenck's (1967) and Buck's (1984) psychophysiological theories of anxiety development to explain individual differences in anticipatory anxiety and rate of adaptation during public speaking. Sensitivity to anxiety creating stimuli predispose individuals to either an internalizing or externalizing affect management strategy. Because social conditioning and neurological processes combine to create anxiety, internalizing individuals are more responsive to punishment and are more likely to appraise an anxiety‐provoking situation as threatening than are externalizers. However, their overall conditionability permits internalizers to adapt to speaking situations more rapidly than their externalizing counterparts who are less susceptible to negative reinforcement. The findings are reviewed in light of various phobia reducing treatment strategies, such as flooding, systematic desensitization, and cognitive appraisal therapy. 相似文献