Search results for " Network"
showing 10 items of 6428 documents
Desarrollo, territorio y capital social. Un análisis a partir de dinámicas relacionales en el desarrollo rural
2013
Si bien parece ampliamente aceptada la idea de que una de las principales fuentes de capital social son las redes sociales, llama mucho la atención la escasez de estudios que utilizan el Análisis de Redes Sociales (ARS) para profundizar en el análisis y medición del capital social. Esto es especialmente significativo si tenemos en cuenta la ingente cantidad de publicaciones que existen sobre este concepto. El propósito de este trabajo es llevar a cabo una aproximación al potencial del análisis de redes sociales (ARS) para analizar la presencia y formas de capital, en concreto, en el marco de las agrupaciones para el desarrollo rural (Grupos LEADER), y en su valor complementario a otras técn…
Italian Amateur Pop-Rock Musicians on Facebook
2017
This chapter investigates how and why amateur musicians use social networking sites, employing a mixed-methods approach. Attention is focused on four big Italian Facebook communities of pop-rock musicians: drums, bass, guitar, and keyboard players (overall, 2,101 active users), analyzing the relational and textual data extracted from the web. The chapter analyzes the network structures emerging from the interactions among the users. It also identifies and maps the main areas of discussion (sound shaping, studio recording, marketplace, musical references, computer production, and relations) and the latent semantic dimension characterizing Facebook users’ activities, through social network an…
Evaluación de necesidades y expectativas ante la construcción de un espacio interactivo de comunicación, información y aprendizaje histórico-educativo
2015
Conscientes de las posibilidades pedagógicas, participativas y de colaboración científica de la Web 2.0, los autores del presente artículo se plantean la detección de las necesidades y expectativas hacia la creación de una plataforma virtual delimitada por un espacio interactivo o red social para la Historia de la Educación y el Patrimonio Histórico-educativo. Gracias a la evaluación mediante un cuestionario en el que han participado un grupo de expertos docentes e investigadores de Historia de la Educación, se han obtenido una serie de conclusiones a tener en cuenta respecto a determinados aspectos (conocimiento y uso, expectativas, componentes, etc.) que orientarán la construcción ad hoc …
Positive Psychological Capital as a Predictor of Satisfaction With the Fly-In Fly-Out Model
2021
The flexibility of the markets and international agreements lure a growing number of companies to expand their business beyond frontiers in search for new markets and a bigger business network. Workers, initially called expatriates, become keystones to implant and promote the so desired expansion into the international markets. From the concept of flexpatriate present in the literature in general, we adapted the concept of FLY-in FLY-out (FIFO) to comprehend the organizational flexpatriates. In the midst of the Positive Psychology theories, Luthans et al. underline that workers are the psychological capital of the companies. Therefore, the development of the Positive Psychological Capital b…
Data from: Network analysis by simulated annealing of taxa and islands of Macaronesia (North Atlantic Ocean)
2018
With the aim of explaining the role that taxa and island features have in biogeographical patterns, we processed presence-absence matrices of all the Macaronesian native species of ten different taxa (arthropods, birds, bryophytes, fungi, lichens, mammals, mollusks, pteridophytes, reptiles and spermatophytes) through simulated annealing analysis. Distribution patterns among the archipelagos were pinpointed, along with the different biogeographic roles played by islands and species groups. All the networks analysed resulted to be significantly modular and the structure of biogeographic modules reflects known past connections among the archipelagos and the current drivers of species distribut…
Data from: Species’ ecological functionality alters the outcome of fish stocking success predicted by a food-web model
2018
Fish stocking is used worldwide in conservation and management but its effects on food-web dynamics and ecosystem stability are poorly known. To better understand these effects and predict the outcomes of stocking, we used an empirically validated network model of a well-studied lake ecosystem. We simulate two stocking scenarios with two native fish species valuable for fishing. In the first scenario, we stock planktivorous fish (whitefish) larvae in the ecosystem. This leads to 1% increase in adult whitefish biomasses and decreases the biomasses of the top predator (perch). In the second scenario, we also stock perch larvae in the ecosystem. This decreases the planktivorous whitefish and t…
Artificial Neural Network Based Abdominal Organ Segmentations: A Review
2015
There are many neural network based abdominal organ segmentation approaches from medical images. Computed tomography images were mostly used in these approaches. Applied techniques are usually based on prior information regarding position, shape, and size of organs in these methods. In the literature, there are only a few neural network based techniques that were implemented to segment abdominal organs from magnetic resonance based images. In this paper, we present these methods and their results.
Beyond the word and image: III. Neurodynamic properties of the semantic network
2019
AbstractUnderstanding the neural process underlying the comprehension of visual images and sentences remains a major open challenge in cognitive neuroscience. We previously demonstrated with fMRI and DTI that comprehension of visual images and sentences describing human activities recruits a common semantic system. The current research tests the hypothesis that this common semantic system will display similar neural dynamics during processing in these two modalities. To investigate these neural dynamics we recorded EEG from naïve subjects as they saw simple narratives made up of a first visual image depicting a human event, followed by a second that was either a sequentially coherent narrat…
The number of contacts in random fibre networks
2012
There is a wide range of materials that can be considered as nonwoven random networks of fibres. Such materials include glass-fibre mats, filters, various paper products and structural components of cells and tissues. The mechanical properties of these kinds of networks have been studied extensively for many decades. As many of such networks form more or less two-dimensional structures, they can, to a good approximation, be considered to consist of randomly distributed fibres or filaments connected at their crossings points. Recent development of the resolution of X-ray computed tomography have enabled imaging of the three dimensional structure of such materials with a resolution sufficient…
Linking immune-mediated damage to neurodegeneration in multiple sclerosis: could network-based MRI help?
2021
Abstract Inflammatory demyelination characterizes the initial stages of multiple sclerosis, while progressive axonal and neuronal loss are coexisting and significantly contribute to the long-term physical and cognitive impairment. There is an unmet need for a conceptual shift from a dualistic view of multiple sclerosis pathology, involving either inflammatory demyelination or neurodegeneration, to integrative dynamic models of brain reorganization, where, glia-neuron interactions, synaptic alterations and grey matter pathology are longitudinally envisaged at the whole-brain level. Functional and structural MRI can delineate network hallmarks for relapses, remissions or disease progression, …