Social Labs in Universities: Innovation and impact in Medialab UGR

Los laboratorios sociales, como espacios de experimentación y cocreación, se han convertido en una de las principales instituciones de innovación en nuestros días. En este marco, los medialabs surgen como un tipo de laboratorios centrados en la experimentación con tecnologías y medios de comunicación y evolucionan, con el desarrollo de la sociedad digital, hacia laboratorios de mediación ciudadana e innovación social. En los últimos tiempos se ha producido una expansión de estos modelos en el contexto universitario, generando casos de gran interés para el desarrollo de nuevas métricas del impacto académico en la sociedad. El presente trabajo aborda, en primer lugar, el concepto, origen y desarrollo de los laboratorios sociales en España y globalmente, centrándose específicamente en el espacio universitario y en los medialabs. En segundo lugar, expone la problemática de las métricas alternativas del impacto social, aportando una propuesta de análisis basada en Twitter como herramienta para identificar los distintos tipos de públicos que muestran interés y el nivel de participación que despierta su actividad. Por último, se aplica este análisis al caso de Medialab UGR en la Universidad de Granada, un laboratorio de cultura digital enfocado en la cocreación y colaboración social. Los resultados muestran la pluralidad de actores vinculados a este tipo de redes, así como la dificultad y complejidad de establecer indicadores que concilien tanto intereses académicos como socialesSocial laboratories, defined as experimental spaces for co-creation, have recently become the main centers of innovation. Medialabs are experimental laboratories of technologies and communication media which have co-evolved along with the digital society into mediation laboratories of citizen experimentation, observing a confluence of both models. In recent years, these centers have expanded within the higher education context, generating new forms of innovation and posing the question of how to measure the impact of such open spaces. This paper analyzes the origin and development of social laboratories in Spain. It first reviews their historical development from their antecedents in the 19th Century to the most recent initiatives. It focuses specifically on initiatives launched within the university context, highlighting their role as motors of innovation. Then, it presents the case of Medialab UGR, a co-creation and digital culture center of social collaboration framed in the digital context. Finally, it offers a first approach towards the assessment of its social impact by using Twitter and analyzes its capacity to mobilize and reach non-academic audiences. The findings show the plurality of actors involved in this type of networks as well as the difficulty and complexity of the task for the development of indicators that can comprise both, academic and social interest

What Drives Students' Loyalty-Formation in Social Media Learning Within a Personal Learning Environment Approach? The Moderating Role of Need for Cognition

Our study analyzes an educational experience based on the integrated use of social media within a higher education course under a personal learning environment approach and investigates the factors that determine students' loyalty to social media learning. We examined the moderating role of need for cognition (NFC) in students' formation of attitudes, satisfaction, and loyalty toward this learning experience. The results indicate that NFC has an influence on these variables, significantly moderating how loyalty toward social media learning is formed. For high-NFC students, satisfaction with the learning experience is the most important variable to explain loyalty; whereas for low-NFC students, attitudes have a stronger effect. Different strategies are suggested, according to the learners' NFC levels, for increasing the use of social media in personal learning environments. Practical implications for improving the integration of such informal resources into formal education are discussed.Junta de Andalucía – Programa Andaluz de I + D P12 SEJ 259

Exploring jet-launching conditions for supergiant fast X-ray transients

Context. In the magneto-centrifugal mechanism for jet formation, accreting neutron stars are assumed to produce relativistic jets only if their surface magnetic field is weak enough (B ∼ 108 G). However, the most common manifestation of neutron stars are pulsars, whose magnetic field distribution peaks at B ∼ 1012 G. If the neutron star magnetic field has at least this strength at birth, it must decay considerably before jets can be launched in binary systems. Aims. We study the magnetic field evolution of a neutron star that accretes matter from the wind of a high-mass stellar companion so that we can constrain the accretion rate and the impurities in the crust, which are necessary conditions for jet formation. Methods. We solved the induction equation for the diffusion and convection of the neutron star magnetic field confined to the crust, assuming spherical accretion in a simpliflied one-dimensional treatment. We incorporated state-of-the-art microphysics, including consistent thermal evolution profiles, and assumed two different neutron star cooling scenarios based on the superfluidity conditions at the core. Results. We find that in this scenario, magnetic field decay at long timescales is governed mainly by the accretion rate, while the impurity content and thermal evolution of the neutron star play a secondary role. For accretion rates Ṁ ≥ 10-10 M⊙ yr-1, surface magnetic fields can decay up to four orders of magnitude in ∼107 yr, which is the timescale imposed by the evolution of the high-mass stellar companion in these systems. Based on these results, we discuss the possibility of transient jet-launching in strong wind-accreting high-mass binary systems like supergiant fast X-ray transients.Facultad de Ciencias Astronómicas y GeofísicasInstituto Argentino de Radioastronomí

Conditions for jet formation in accreting neutron stars: the magnetic field decay

Accreting neutron stars can produce jets only if they are weakly magnetized (B~10^8 G). On the other hand, neutron stars are compact objects born with strong surface magnetic fields (B~10^12 G). In this work we study the conditions for jet formation in a binary system formed by a neutron star and a massive donor star once the magnetic field has decayed due to accretion. We solve the induction equation for the magnetic field diffusion in a realistic neutron star crust and discuss the possibility of jet launching in systems like the recently detected Supergiant Fast X-ray Transients.Fil: García, Federico. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Aguilera, Deborah N.. Ohio University; Estados UnidosFil: Romero, Gustavo Esteban. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaInternational Astronomical Union SymposiumReino UnidoInternational Astronomical Unio

Reparación a víctimas de violencia política entre la administración estatal del dolor y la superación política del trauma

La presente investigación busca comprender la compleja relación entre poder, sufrimientos sociales, violencia y rehabilitación. El propósito de la investigación es hacer una lectura crítica e interdisciplinar con énfasis en los estudios políticos sobre la rehabilitación como experiencia social.Politólogo (a)Pregrad

Personal Learning Environments Acceptance Model: The Role of Need for Cognition, e-Learning Satisfaction and Students' Perceptions

As long as students use Web 2.0 tools extensively for social purposes, there is an opportunity to improve students' engagement in Higher Education by using these tools for academic purposes under a Personal Learning Environment approach (PLE 2.0). The success of these attempts depends upon the reactions and acceptance of users towards e-learning using Web 2.0. This paper aims to analyse the factors (e-learning satisfaction and students’ perceptions, among others) that determine the intention of use of a PLE 2.0 initiative. The study in addition analyses the moderating role of the Need for Cognition (NFC) in the model. The results indicate that the model proposed has a high explanatory power of the intention to use a PLE 2.0 and gives support to the moderating role of NFC. The study discusses how this analysis can help to improve course designs by teachers

Exploring how student motivation relates to acceptance and participation in MOOCs

In recent years, MOOCs have become firmly established as valid e-learning environments and, as such, have been developed by many universities using different types of platform. Given the voluntary nature of MOOC enrolment, motivation is crucial to our understanding of why students register for and complete these courses. The present study explores the motivations that characterize MOOC participants and how they relate to technology acceptance variables (data collected via questionnaires) and participation variables (observational data collected via the platform). Our results indicate that students show exceptionally high levels of intrinsic motivation. However, extrinsic motivation also plays a relevant role, suggesting that the two are not mutually exclusive. Although only intrinsic motivation appears to be systematically associated with differences in technology acceptance, both are associated with differences in participation, but in contrasting ways. Our results provide insights that will enable us to improve MOOC design in order to enhance participant satisfaction, particularly when different sources of motivation are involved. Future research based on the modeling of technology acceptance and participation will also benefit from this study

Social Labs in Universities: Innovation and impact in Medialab UGR / Laboratorios sociales en Universidades: Innovación e impacto en Medialab UGR

Social laboratories, defined as experimental spaces for co-creation, have currently become the main centres of innovation. Medialabs are experimental laboratories of technologies and communication media which have co-evolved along with the digital society into becoming mediation laboratories of citizen experimentation, observing a confluence of both models. In the last years, these centres have expanded within the higher education context, generating new forms of innovation and posing the issue on how to measure the impact of such open spaces. This paper analyzes the origin and development of social laboratories in Spain. It first reviews their historical development since its antecedents in the 19th Century until the most recent initiatives. It focuses specifically on initiatives launched within the university context, highlighting their role as motors of innovation. Then, it presents the case of Medialab UGR, a co-creation and digital culture centre of social collaboration framed in the digital context. Finally, it offers a first approach towards the assessment of its social impact by using the Twitter and analyzes its capacity to mobilize and reach non-academic audiences. The findings show the plurality of actors involved in this type of networks as well as the difficulty and complexity of the task on the development of indicators that can comprise both, academic and social interests

Co-Existence of Inoculated Yeast and Lactic Acid Bacteria and Their Impact on the Aroma Profile and Sensory Traits of Tempranillo Red Wine

This study investigates the effects of simultaneous inoculation of a selected Saccharomyces cerevisiae yeast strain with two different commercial strains of wine bacteria Oenococcus oeni at the beginning of the alcoholic fermentation on the kinetics of malolactic fermentation (MLF), wine chemical composition, and organoleptic characteristics in comparison with spontaneous MLF in Tempranillo grape must from Castilla-La Mancha (Spain). Evolution of MLF was assessed by the periodic analysis of L-malic acid through the enzymatic method, and most common physiochemical parameters and sensory traits were evaluated using a standardized sensory analysis. The samples were analyzed by GC/MS in SCAN mode using a Trace GC gas chromatograph and a DSQII quadrupole mass analyzer. Co-inoculation reduced the overall fermentation time by up to 2 weeks leading to a lower increase in volatile acidity. The fermentation-derived wine volatiles profile was distinct between the co-inoculated wines and spontaneous MLF and was influenced by the selected wine bacteria used in co-inoculation. Co-inoculation allows MLF to develop under reductive conditions and results in wines with very few lactic and buttery flavors, which is related to the impact of specific compounds like 2,3-butanedione. This compound has been also confirmed as being dependent on the wine bacteria use

Structure of neutron stars in R-squared gravity

The effects implied for the structure of compact objects by the modification of General Relativity produced by the generalization of the Lagrangian density to the form R plus alpha R-squared, where R is the Ricci curvature scalar, have been recently explored. It seems likely that this squared-gravity may allow heavier Neutron Stars (NSs) than GR. In addition, these objects can be useful to constrain free parameters of modified-gravity theories. The differences between alternative gravity theories is enhanced in the strong gravitational regime. In this regime, because of the complexity of the field equations, perturbative methods become a good choice to treat the problem. Following previous works in the field, we performed a numerical integration of the structure equations that describe NSs in f(R)-gravity, recovering their mass-radius relations, but focusing on particular features that arise from this approach in the profiles of the NS interior.We show that these profiles run in correlation with the second-order derivative of the analytic approximation to the Equation of State (EoS), which leads to regions where the enclosed mass decreases with the radius in a counter-intuitive way. We reproduce all computations with a simple polytropic EoS to separate zeroth-order modified gravity effects.Instituto Argentino de RadioastronomíaFacultad de Ciencias Astronómicas y Geofísica