Editorial     

Marco Todeschini 《欧洲师范教育杂志》1992,15(1-2):3-4

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Hernán Cortés: Virtù vs. Fortuna     

Marco A. Almazn 《Journal of American culture (Malden, Mass. : 2003)》1997,20(2):131-137

En este trabajo analizo algunas de las hazañas del conquistador Hernán Cortés, en base a los conceptos de “virtu” y “fortuna.” Visto desde esta perspectiva, Cortés aparece como un hombre de indiscutible inteligencia y valentía personal cuyos logros políticos en Mesoamérica han sido sobre-estimados.  相似文献   

I‐‐Italy     

Marco Todeschini 《欧洲师范教育杂志》1994,17(1-2):89-94

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Certainties and mysteries in the within-trial contrast literature: A reply to Zentall (2008)     

Marco Vasconcelos  Peter J. Urcuioli 《Learning & behavior》2008,36(1):23-25

Contrary to Zentall’s (2008) hypothesis that extensive overtraining is required in order to obtain the work ethic effect in pigeons, we find no evidence of this in two separate paradigms designed to assess preference for stimuli encountered after high effort. In light of these findings, along with our previously published results and those of Arantes and Grace (2008), we maintain that the work ethic effect is not a reliable phenomenon in pigeons. On the other hand, we are uncertain about the reason(s) underlying the different preference profiles for high- versus low-deprivation stimuli as a function of successive versus simultaneous discrimination training (Vasconcelos & Urcuioli, 2008). Nevertheless, we disagree with Zentall that additional analyses of the sort he suggests support the conclusion that both training regimens yield within-trial contrast effects.  相似文献   

Music consumption at the dawn of the music industry: the rise of a cultural fad     

Marco Guerzoni  Massimiliano Nuccio 《Journal of Cultural Economics》2014,38(2):145-171

This paper discusses the extent to which sociodemographic characteristics of consumers and their past consumption are less effective in explaining the decision of purchasing a cultural good than the characteristics of the product itself, which allow for imitative behaviors and are at the basis of distinction. While the former approaches are well documented in the literature, the latter refers to Bourdieu’s idea of objectified cultural capital, which has been revisited and empirically explored. Because the various causal effects interact with each other, this paper tests a theoretical model which matches individual characteristics of the consumer with the properties of the cultural product. Specifically, we discussed the emergence of a new version of a cultural good, which is able to broaden the dimension of the market by gaining rapid success in its audience. This diffusion pattern is a quite rare event, but disruptive for the market and extremely profitable for the producer. The authors label this occurrence a disruptive cultural fad and try to understand the determinants of its adoption. The hypotheses of the model are tested on a unique dataset of microdata of purchasing transactions in Milan in the early nineteenth century, when the music by Gioachino Rossini emerged as a disruptive cultural fad at the dawn of the music industry. Results show that key features of a successful disruptive cultural fad are the role of some specific patterns of personal past consumption, the capabilities of generating positive network externalities in the consumption, and, surprisingly, the lack of negative ones due to any possible hip or snob effect.  相似文献   

The fit of planning methods for the part manufacturing industry,a case study     

Philipp Spenhoff  ;Marco Semini  ;Erlend Alfnes  ;Jan Ola Strandhagen 《上海大学学报(英文版)》2014,(2):165-172

This paper investigates the specific planning environment of an automotive part manufacturer and characterizes this environment based on variables regarding the product,its demand and the manufacturing process.The fit of different planning methods,namely material requirements planning,reorder point,cyclic planning,kanban,and heijunka to this specific planning environment is analyzed and evaluated by exploratory research.The results show that different product characteristics make it hard to apply a single planning method.None of the investigated methods show the ability to cover the complex requirements of a combined planning environment of two partly divergent product types with a deep value chain.  相似文献   

Misconceptions,Knowledge, and Attitudes Towards the Phenomenon of Radioactivity     

Morales López  Ana Isabel  Tuzón Marco  Paula 《Science & Education》2022,31(2):405-426

Science & Education - The teaching of the phenomenon of radioactivity is considered a key ingredient in the path towards developing critical thinking skills in many secondary science education...  相似文献   

Students home alone—profiles of internal and external conditions associated with mathematics learning from home     

Hofer  Sarah I.  Reinhold  Frank  Koch  Marco 《European Journal of Psychology of Education - EJPE》2023,38(1):333-366

European Journal of Psychology of Education - This study aims at describing differences in internal and external resources of students to handle mathematics learning from home. Based on data from...  相似文献   

Velocity observer design for the consensus in delayed robot networks     

Marco A. Arteaga–Pérez  Emmanuel Nuño 《Journal of The Franklin Institute》2018,355(14):6810-6829

The consensus problem for networks of multiple agents consists in reaching an agreement between certain coordinates of interest using a distributed controller. It may be desirable that all the agents find a consensus at a given desired leader coordinate (Leader Follower Consensus Problem LFCP), or it may be only necessary that they agree at a certain coordinates value (Leaderless Consensus Problem LCP). Consensus has many practical applications in robot networks systems, where the interconnection of the agents may present variable time delays, hence rendering the stability analysis and control design more complex. Another problem that may arise is the possible lack of velocity measurements. In this work, a Proportional plus damping injection (P + d) controller together with a linear velocity observer is introduced. Our approach is able to solve both the LFCP and the LCP in networks of robots modeled as undirected weighted graphs with unknown asymmetric (bounded) variable time delays. Local (semi global) asymptotic stability is proven and simulation results are provided to test the performance of the proposed scheme.  相似文献   

Searching for innovation knowledge: insight into KIBS companies     

Malgorzata?ZiebaEmail author  Ettore?Bolisani  Marco?Paiola  Enrico?Scarso 《知识管理研究与实践》2017,15(2):282-293

The paper analyses the activity of research for “innovation knowledge”—here defined as knowledge that can lead to the introduction of service innovations—by Knowledge-Intensive Business Services (KIBS) companies. It proposes a classification of the possible search approaches adopted by those companies based on two dimensions: the pro-activity of search efforts and the source primarily used. Such classification is then discussed on the basis of the findings of a multiple case-study investigation involving 15 Italian and Polish KIBS companies. The study confirms that KIBS firms follow various approaches to acquire knowledge for innovation: some companies adopt a passive behaviour (i.e. innovative ideas come as a kind of side effect of their daily business activities), while others an active one (namely, they actively search for new ideas originating from various sources); some rely more on internal resources (employees, in-house R&D, internal documents, etc.), while others on external sources (clients, suppliers, service providers, universities, etc.). The results of the study have implications both for research and management that are discussed in the conclusions.  相似文献