The Herbal as Art     

Marcus MF 《Bulletin of the Medical Library Association》1944,32(3):376-384

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DOUBLE JEOPARDY PATTERNS FOR POLITICAL PARTIES     

Solgaard  Hans S.; Smith  David E.; Schmidt  Marcus 《Int. Journal of Public Opinion Research》1998,10(2):109-120

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Virtual anatomy and point-of-care ultrasonography integration pilot for medical students     

Marcus E. Olivares-Perez  Sally Graglia  Derek J. Harmon  Barbie A. Klein 《Anatomical sciences education》2022,15(3):464-475

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On recursive averaging processes and Hilbert space extensions of the contraction mapping principle     

J.C. Dunn 《Journal of The Franklin Institute》1973,295(2):117-133

If T maps a convex domain D_T into itself, and if {ω_n} is a real sequence with range in (0, 1] then the recursive averaging process, generates a sequence {x?_n}; with range in D_T. Under suitable conditions on D_T, T and {ω_n} the sequence {x?_n} will converge in some sense to a fixed point of T. We prove that if D_T is a closed convex subset of a complex Hilbert space H, if Tω = (1 ? ω) I + ωT is a strict contraction for some ω ? (0, 1], and if {ω_n} satisfies the conditions, and then, for arbitrary ξ ? D_T, {x?_n} converges strongly to (the unique) fixed point of T. We also prove that if D_T and {ω_n} satisfy the foregoing conditions, if T has at least one fixed point, and if Tω is non-expansive for some ω ? (0, 1], then for all ξ ? D_T, {x?_n} converges at least weakly to some fixed point of T. Finally, we apply these results to linear equations involving bounded normal operators and obtain an extension of the classical Neumann operator series.  相似文献   

Professional networks, scientific collaboration, and publication productivity in resource-constrained research institutions in a developing country     

Marcus Antonius Ynalvez  Wesley M. Shrum 《Research Policy》2011,40(2):204-216

We test the hypothesis that scientific collaboration is associated with increased publication productivity. We differentiate our approach from other studies by (a) incorporating professional networks in the productivity model, (b) casting productivity and collaboration as distinct phenomena, and (c) examining these phenomena in the context of resource-constrained research institutions in a developing country. We use survey data and employ negative binomial regression models. Results indicate that publication productivity is significantly linked to professional network factors, but there is no evidence of any association with scientific collaboration. We observe that most scientists collaborate in research projects despite coordination difficulties, and without any measurable impact on their productivity. Our interviews reveal that a possible answer to this puzzle appears to be rooted in a practice that views collaborative research projects not mainly as a means to producing knowledge and gaining recognition, but for acquiring professional opportunities and extrinsic rewards. Our findings suggest a new way of modeling publication productivity, with implications for science and innovation policy in both the developed and the developing world.  相似文献   

Case Study: Improving Customer Satisfaction,Quality, and Performance Using Performance‐Centered Solutions at ADDS Communications     

Aurora Seguinot Cruz  Dwayne Dunn 《Performance Improvement》2014,53(8):19-23

A team of performance consultants looks closely at the operations of a cable services provider to identify existing performance gaps, barriers to performance, declining customer satisfaction ratings, and increased call volumes. The team used performance‐centered design (PCD) solutions in order to overcome technical support challenges through increased first‐call resolution. This article summarizes the root cause analysis, process, and the application of PCD solutions to close performance gaps, along with lessons learned from this case study.  相似文献   

Bias over substance: a critical analysis of Kavale and Forness' report on modality-based instruction     

R Dunn 《Exceptional children》1990,56(4):352-361

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Developing norms for charting classroom progress     

W Dunn 《Journal of learning disabilities》1979,12(5):320-321

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A Comparative Demographic Study of Student Teachers from the North and South of Ireland     

Seamus Dunn  Valerie Morgan 《比较教育学》1979,15(2):143-157

90.4% of the 1977 entrants to concurrent general Teacher Education courses in Ireland North and South responded to a demographic questionnaire. The results are analysed and the two regions contrasted with respect to personal, professional and geographical variables. These indicate that some interesting differences exist but that there are many overall similarities.  相似文献   

How do foreign firms patent in emerging economies with weak appropriability regimes? Archetypes and motives     

Marcus Matthias Keupp  Sascha FriesikeMaximilian von Zedtwitz 《Research Policy》2012,41(8):1422-1439

Foreign firms patent in emerging economies with weak appropriability regimes at an increasing rate. This phenomenon constitutes a paradox since in such a setting foreign firms should have weak incentives to patent. In an attempt to resolve this paradox, we conducted an inductive analysis of 11 foreign firms that patent in such a setting, using the case of China as our empirical context. We identify four archetypes of foreign firms and three key antecedents the interaction of which determines which archetype a firm can be subsumed under.Our study complements the developed-economy focus of the extant appropriation literature by adding an international perspective. We extend previous econometric studies by identifying salient factors on the firm level that determine the extent to which a foreign firm patents in emerging economies with a weak appropriability regime, highlighting that the extent of a firm's motivation to maintain its freedom to operate can supersede imitability concerns. We also comment on the practical implications of these contributions for managers of foreign firms. Highlighting a structural conflict of interest between foreign firms from developed economies and the development goals of an emerging economy, we point to the generalizability of our results to a wide range of other emerging economies worldwide.  相似文献