El Creative Commons y la Devolución como instrumentos alternativos para incentivar la innovación en la Sociedad del Conocimiento

El hombre del siglo XXI se encuentra inmerso en medio de un nuevo paradigma social denominado sociedad del conocimiento y de la información. Como sistema de organización para el individuo, éste sistema impone la aparición de nuevas lógicas de interacción de los individuos y por ende del replanteamiento de las estructuras institucionales que los rigen. Uno de los cambios que exige esta nueva sociedad se orienta a reformular los sistemas o instituciones legales a través de los cuales se administran los flujos de información y conocimiento, en la medida que estos dos bienes son la fuente básica para la consolidación de la nueva sociedad. Dos de las soluciones que han emergido como muestra clara de esta necesidad de replantear las reglas de juego, en el caso concreto de la propiedad intelectual y los sistemas de patentes son, la Devolución y el Creative Commons, de los cuales este artículo se preocupara de estudiar a partir de sus limitaciones legales y económicas, analizando sus ventajas, desventajas y su posible utilidad en el caso colombiano en donde una de las políticas públicas del Estado busca que la sociedad colombiana inicie el proceso de migración hacia la sociedad del conocimiento.

La circunferencia: herramienta para descubrir, verificar y justificar propiedades en educación básica primaria

El curso presenta una experiencia innovadora para el trabajo en geometría, en donde se estimula la participación de los estudiantes de básica primaria en la resolución de problemas de construcción geométrica con el apoyo de programas de geometría dinámica. Específicamente, se describe, fundamenta y ejemplifica un experimento de enseñanza en donde niños de quinto de primaria usan la circunferencia como herramienta para construir segmentos congruentes, verificar la congruencia de segmentos y justificar dicha congruencia

Service Migration from Cloud to Multi-tier Fog Nodes for Multimedia Dissemination with QoE Support.

A wide range of multimedia services is expected to be offered for mobile users via various wireless access networks. Even the integration of Cloud Computing in such networks does not support an adequate Quality of Experience (QoE) in areas with high demands for multimedia contents. Fog computing has been conceptualized to facilitate the deployment of new services that cloud computing cannot provide, particularly those demanding QoE guarantees. These services are provided using fog nodes located at the network edge, which is capable of virtualizing their functions/applications. Service migration from the cloud to fog nodes can be actuated by request patterns and the timing issues. To the best of our knowledge, existing works on fog computing focus on architecture and fog node deployment issues. In this article, we describe the operational impacts and benefits associated with service migration from the cloud to multi-tier fog computing for video distribution with QoE support. Besides that, we perform the evaluation of such service migration of video services. Finally, we present potential research challenges and trends

I bet you don’t look good on the dance floor: Re-examining the innovation policy dance metaphor in the case of Colombia

Innovation heuristics offer guidance on how to navigate through the complex dynamics of innovation governance. However, further discussion is needed on the premises of such analytical tools to inquire on their implications on innovation policy and practice. This paper builds on the innovation policy dance metaphor to better grasp the ever-changing interplays (or dance) between innovation practice (I), policy (P) and theory (T). We critically assess the basic underlying assumptions of this metaphor, by examining the extent to which its heuristic pretensions are relevant in the Latin American context. To do so, we explore three illustrative cases in Colombia, shedding light on some crosscutting opportunities and gaps for the dancing metaphor across different innovation I-P-T situations. Some derived lessons suggest that dancing occurs within and/or between different governance levels, where variables such as politics shape the innovation I-P-T interplay and time defines first and second order learning pathways

Sound symbolism, speech expressivity and crossmodality

The direct links existing between sound and meaning which characterize sound symbolism can be thought of as mainly related to two kinds of phenomena: sound iconicity and sound metaphors. The first refers to the mirror relations established between sound and meaning effects (Nobile, 2011) and the latter as coined by Fonagy (1983) refers to the relationships based on analogies between meaning and speech sound production characteristics. Four relevant codes to the study of sound symbolism phenomena have been mentioned in the phonetic literature: the frequency code (Ohala, 1994), the respiratory code, the effort code (Gussenhoven, 2002) and the sirenic code (Gussenhoven, 2016). In the present work sound symbolism is taken to be the basis of speech expressivity because the meaning effects attributed to the spoken mode by the listeners are thought to be based on the acoustic features of sounds deriving from the various articulatory maneuvers yielding breath, voice, noise, resonance and silence. Based on the impression caused by the acoustic features, listeners attribute physiological, physical, psychological and social characteristics to speakers. In this way, speech can be considered both expressive and impressive, because it is used to convey meaning effects but it also impress listeners. Both segmental and prosodic elements are used to express meaning effects in speech. Among the prosodic elements vocal quality settings have received less attention regarding speech expressive uses. We argue that the investigation of the expressive uses of voice quality settings can be better approached if these settings are grouped according to their shared acoustic output properties and vocal tract configurations. Results of experiments relating symbolic uses of vocal qualities to semantic, acoustic and visual features by means of multidimensional analysis are reported and the expressive and impressive roles of vocal quality settings in spoken communication are discussed in relation to motivated links between sound forms and meaning effects. KEY WORDS: sound and meaning;  sound symbolism; speech expressivity; voice quality; acoustic analysis; perceptual analysis