Search results for "ICT"
showing 10 items of 7961 documents
Morphological similarities between DBM and an economic geography model of city growth
2009
International audience; An urban microeconomic model of households evolving in a 2Dcellular automata allows to simulate the growth of a metropolitan area whereland is devoted to housing, road network and agricultural/green areas. Thissystem is self-organised: based on individualistic decisions of economic agentswho compete on the land market, the model generates a metropolitan area withhouses, roads, and agriculture. Several simulation are performed. The resultsshow strong similarities with physical Dieletric breackdown models (DBM). Inparticular, phase transitions in the urban morphology occur when a controlparameter reaches critical values. Population density in our model and theelectric …
El tendón de Aquiles de la cirugía coronaria: el ictus postoperatorio
2017
Resumen Los pacientes con factores de riesgo preexistentes de enfermedad cerebrovascular tienen durante la cirugia coronaria un mayor riesgo de presentar un ictus postoperatorio. Entre los principales factores de riesgo a considerar esta la edad, las comorbilidades y la tecnica quirurgica, en especial la manipulacion de la aorta. Este articulo revisa la informacion medico-quirurgica actual de la lesion neurologica tipo ictus durante la CABG aislada.
Artificial Social Ethics: Simulating Culture, Conflict, and Cooperation
2020
In recent years advances in computational modeling and social simulation technologies have enabled scientists to identify some of the conditions under which – and the mechanisms by which – conflict and cooperation within and across human cultures are likely to emerge. There are significant ethical concerns surrounding the increased capacity and growing use of such computer tools to guide public policy discussions. The purpose of this paper is to propose and promote an "artificial social ethics" approach to addressing these concerns and illustrate its application in relation to three agent-based models implemented within the Artificial Society Analytics Platform. We conclude with a brief dis…
Blogs ciudadanos en las elecciones españolas de 2008: asimilación de la agenda y reproducción de la lógica partidista
2012
El presente estudio se propone dilucidar las características de la blogosfera política española durante la campaña de 2008 mediante una muestra de tres reputados blogs ciudadanos y esclarecer si se produce una discusión ciudadana independiente de la agenda partidista y mediática. El análisis de contenido permitirá identificar el tipo de cobertura que estos blogs realizan sobre la campaña a través de las siguientes variables: enlaces, temas principales, protagonistas y valoraciones de los autores. Las conclusiones sugieren una significativa fragmentación de la blogosfera en espacios ideológicos, carentes de conexión entre sí y tendentes a la polarización del discurso. The present study inten…
Managing risk-taking to enhance innovation in organizations
2013
Trabajo presentado al Organizational Innovation Workshop: "Organizational Innovation and its antecedents, performance consequences and technological complementarities: Towards a research agenda" celebrado en Valencia (España) el 21 de Febrero de 2013.
The Book Between Media Convergence, Media Specificity, and Diverse Reading Communities in Present-Day US Culture
2019
Drawing on empirical studies and statistical analyses of how digitization has restructured the American publishing industry during the last decade, Christoph Blasi considers the book’s current position in media culture from the perspective of book studies. He surveys the latest research on the development of print book production, on the market competition between printed books and e-books, and on the differences between screen and print reading. Noting that communication practices and circuits of book value creation have changed in the wake of digitization, Blasi also highlights the significant function that print books possess in the contemporary media ecology—both as part of transmedia s…
Does role stress predict burnout over time among health care professionals?
2012
Abstract The main objective of this study is to test the effects over time of three role stress variables (role conflict, role ambiguity and role overload) on the three burnout dimensions (emotional exhaustion, depersonalization and personal accomplishment). Based on theoretical models on burnout and on meta-analytical research, it is hypothesized that the three role stress variables will predict changes over time in emotional exhaustion and depersonalization, but not in personal accomplishment. The results obtained by means of hierarchical regression analysis partially support the hypothesis. The three role stress variables predict emotional exhaustion over time. Role conflict and role ove…
Second Language Interference during First Language Processing by Arabic-English Bilinguals.
2017
The research investigated whether a bilinguals’ second language (L2) is activated during a task involving only the first language (L1). We tested the hypothesis that the amount of L2 interference can vary across settings, with less interference occurring in testing locations where L2 is rarely used. In Experiment 1, we compared language processing for 50 Arabic–English bilinguals tested in Saudi Arabia and 49 Arabic–English tested in the United States. In the task, participants viewed a picture and judged whether a phoneme presented over headphones was part of the L1 picture name. The results showed no effect of testing location on processing. For both groups of bilinguals, we observed L2 i…
Using a neural network for qualitative and quantitative predictions of weld integrity in solid bonding dominated processes
2014
Solid-state bonding occurs in several manufacturing processes, as Friction Stir Welding, Porthole Die Extrusion and Roll Bonding. Proper conditions of pressure, temperature, strain and strain rate are needed in order to get effective bonding in the final component. In the paper, a neural network is set up, trained and used to predict the bonding occurrence starting from the results of specific numerical models developed for each process. The Plata-Piwnik criterion was used in order to define a quantitative parameter taking into account the effectiveness of the bonding. Excellent predictive capability of the network is obtained for each process.
Dual phase titanium alloy hot forging process design: experiments and numerical modeling
2015
Titanium alloys are considered desirable materials when both good mechanical properties and weight reduction are required at the same time. This class of materials is widely used in those fields (aeronautics, aerospace) in which common steels and light-weight materials, e.g., aluminum alloys, are not able to satisfy all operative service conditions. During the last decade, forging of titanium alloys has attracted greater attention from both industrial and scientific/academic researchers because of their potential in providing a near net shaped part with minimal need for machining. In this paper, a numerical model of the forging sequences for a Ti-6Al-4V titanium alloy aerospace component is…