Metadatos en DSpace

El documento describe de manera general el esquema de metadatos que utiliza DSpace, la inserción de metadatos al esquema DC y la inserción de nuevos esquemas de metadatos en DSpace

Personalización de la interfaz JSPUI en DSpace

El documento describe los elementos básicos para la personalización de la interfaz gráfica JSPUI en DSpace

“Historia o Ideología, un transcendental sin sujeto” A propósito del libro de L. Bértola y J. A. Ocampo, El Desarrollo Económico de América Latina desde la independencia, México, fce 2013

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Modelling Complex Dynamics and Distributed Generation of Knowledge with Bacterial-Based Algorithms

This study aimed to test that connected and heterogeneous societies with peer-to-peer (P2P) exchanges are more resilient than centralized and homogeneous ones. In agent-based modeling, agents with bounded rationality interact in a common environment guided by local rules, leading to Complex Adaptive Systems that are named 'artificial societies'. These simplified models of human societies grow from the bottom up in computational environments and can be used as a laboratory to test some hypotheses. We have demonstrated that in a model based on free interactions among autonomous agents, optimal results emerge by incrementing diversity and decentralization of communication structures, as much as in real societies Internet is leading to the emergence of improvements in collective intelligence. In order to achieve a real “Knowledge Society”, what we have named a “P2P Society”, it is necessary to increase decentralization and heterogeneity through information policies, distributed communication networks, open e-learning approaches and initiatives like public domain licenses, free software and open data

Biological Peer-to-Peer Networks: From Bacterial Communication to the Development of Synthetic Distributed Systems

Poster presented at the ESC-EBSCO Conference: Biology of plastids: Towards a blueprint for synthetic organelles which took place in 2014 June 21-23, in Pultusk (POLAND). The Web Site of the event: http://bioplastids.esf.org/This communication was supported by a European Science Foundation gran

Decentralization and heterogeneity in complex adaptative systems

Following a bacterial-based modeling approach, the authors want to model and analyze the impact of both decentralization and heterogeneity on group behavior and collective learning. The paper aims to discuss these issues. Inspired by bacterial conjugation, the authors have defined an artificial society in which agents’ strategies adapt to changes in resources location, allowing migration, and survival in a dynamic sugarscape-like scenario. To study the impact of these variables the authors have simulated a scenario in which resources are limited and localized. The authors also have defined three constraints in genetic information processing (inhibition of plasmid conjugation, inhibition of plasmid reproduction and inhibition of plasmid mutation). The results affirmed the hypothesis that efficiency of group adaptation to dynamic environments is better when societies are varied and distributed than when they are homogeneous and centralized.The authors have demonstrated that in a model based on free interactions among autonomous agents, optimal results emerge by incrementing heterogeneity levels and decentralization of communication structures, leading to a global adaptation of the system. This organic approach to model peer-to-peer dynamics in complex adaptive systems (CAS) is what the authors have named “bacterial-based algorithms” because agents exchange strategic information in the same way that bacteria use conjugation and share genome

P2P Societies: The impact of Decentralization and Heterogeneity in Complex Systems

Poster presented at the 16th WOSC Congress: Our Self-organising World: from Disruption to Reparation which took place in 2014, 15-17 October, in Ibagué (COLOMBIA). The Web Site of the event: http://wosc-congress.unibague.edu.co

Chunky graphite in spheroidal graphite iron: review of recent results and definition of an predicting index

International audienceGraphite degeneracy in heavy-section spheroidal graphite cast irons is mostly associated with the formation of chunky graphite which consists of large eutectic cells with interconnected graphite strings. At low level, appearance of chunky graphite is limited to its non-aesthetic effect on machined surfaces, while at higher level it is detrimental for mechanical properties of the components. Chunky graphite is often related to high silicon levels and too high cerium additions during the spheroidization treatment. The appearance of this defect may be limited by controlled additions of antimony that is thought to tight the excess of cerium, but other impurities and low level elements may have to be considered during melt preparation. This contribution proposes a review of recent results and approaches on chunky graphite appearance, primarily but not exclusively in the case of heavy-section cast irons. Based on this literature review and series of experimental data, a predictive index for evaluating the risk of chunky graphite appearance is proposed. Lines for further research work aimed at a better understanding of graphite degeneracy are finally suggested. Introduction The need for melt control before casting of spheroidal graphite cast irons have led for long to look for graphite degeneracy as resulting from melt chemistry. Thielemann developed a trace element evaluation number S b for assessing the ability of the charge to give well-formed nodules [1]

Desarrollo de un prototipo de sistema para potenciar la relación de los Clientes con la Empresa IOB

79 p.El presente proyecto tiene como objetivo principal el desarrollo de un prototipo de sistema que permita potenciar la relación de la empresa lob con sus clientes. Además el prototipo terminado, da una posibilidad concreta a la empresa de tener una comunicación directa con sus clientes, posibilitando la venta de helados a todo el país, con sus respectiva facturación y pagos. Para el desarrollo del prototipo de sistema se utiliza el lenguaje de programación PHP, además de utilizar el servidor web APACHE y cl administrador de base de datos MySQL

“DEMOCRATIZACIÓN DEL PROCESO LEGISLATIVO DE LA REFORMA CONSTITUCIONAL EN MÉXICO. PROPUESTA DE REDISEÑO DESDE LA DEMOCRACIA PARTICIPATIVA”

El presente trabajo aborda el problema en torno a la ausencia de controles y/o contrapesos en el proceso legislativo de reforma constitucional en México y, en ello, las consecuencias en relación no solo al sistema jurídico sino, también, en la representación y legitimidad política de la Norma Suprema