bluuebunny/crossref_metadata_2025_split huggingface dataset:
El poder del prosumidor. Identificación de sus necesidades y repercusión en la producción audioviusal transmedia
Authors: Lastra Ana 
Published: February 2016

Un producto audiovisual transmedia se fundamenta en tres pilares: un universo narrativo, un número de plataformas de expansión de ese universo y un prosumidor que interactúe con el contenido. El presente trabajo supone un análisis de este prosumidor. Para ello, se ha realizado una documentación bibliográfica y un desarrollo comparativo de dos estudios de caso: El Ministerio del Tiempo y Kung Fury. Se optan por estos dos proyectos debido a sus diferencias tanto en su sistema de producción como en su prosumidor objetivo. Este análisis se realiza para observar cuáles son las necesidades del prosumidor y su repercusión en la viabilidad del proyecto. Se intenta, además de identificar el poder del prosumidor en la producción audiovisual transmedia, establecer qué aspectos relacionados con la comunicación deben reforzarse y/o mejorar de cara al futuro. Todo ello para obtener un feedback constructivo entre los medios de comunicación y el prosumidor. Transmedia audiovisual products have three basic pillars: a narrative universe, a number of expansion platforms of these universe and a prosumer who interacts with the content. This work represents an analysis of this prosumer. A bibliographic documentation and comparative work have been used for this two case studies, El Ministerio del Tiempo and Kung Fury. These two projects have been chosen because of their differences on production system and objective prosumer. All this analysis was made to determine which are the prosumer´s necessities and repercussion in the viability of the project. As well as identifying the power of prosumer in transmedia audiovisual production, it tries analyzing what communications aspects must be strengthen and/or improve in the future. All this work gives us a constructive feedback between mass media and prosumer.
Mundos transmediales: revisión conceptual y perspectivas teóricas del arte de crear mundos
Authors: Rosendo Sánchez Nieves 
Published: February 2016

El concepto de transmedia storytelling introducido por Henry Jenkins (2003, 2006) ha sido ampliamente desarrollado académicamente en los últimos años, popularizándose y redefiniéndose con el tiempo. Dentro de la propia definición del transmedia storytelling se observa la centralidad del concepto de mundo, que desde una perspectiva teórica y crítica ha sido menos desarrollado que la relación entre la narrativa y los medios presentes en las narrativas transmediales. El presente trabajo recoge y sistematiza una selección bibliográfica de los principales autores que han definido la naturaleza, límites y transferibilidad de los llamados mundos transmediales, estableciendo conclusiones relativas a la necesidad de observar el citado fenómeno de las narrativas transmediales, sus elementos constituyentes y los procesos en los que éstos se ven envueltos, con la finalidad de elaborar unos criterios previos para su análisis y consideración como pieza fundamental de este fenómeno. The concept of transmedia storytelling introduced by Henry Jenkins (2003, 2006) has been widely developed in the academic field, getting popular and being redefined with time. In transmedia storytelling’s definition we can observe the focus on the concept of world, which from a theoretical and critical perspective did not had the development that the relationship among narrative and media had. This work gathers and analyzes a selection of references from the main authors that have defined the nature, limits and transferability of the so called transmedial worlds, proposing conclusions related to the need to observe the phenomenon of transmedia narratives, its founding elements and the processes related to them, with the aim to elaborate a catalogue of criteria for the analysis and consideration of key element of transmedia storytelling.
Estrategias Transmedia y enunciación desde los márgenes: El universo narrativo de The Undocumented, Marco Williams, 2013.
Authors: Arnau Roselló Roberto 
Published: February 2016

El auge de las narrativas no lineales multimedia, ha propiciado un aumento exponencial de la producción de contenidos audiovisuales que exploran las potencialidades discursivas asociadas al tipo de consumo visual contemporáneo caracterizado por la reticularidad y conectividad del medio, la transmedialidad, la posibilidad de interacción, de geolocalización, de navegación, la movilidad de las pantallas, la atomización de las audiencias o la fragmentación del relato.En este contexto multiforme, se abre un espacio para ciertos proyectos independientes de carácter transmediático que despliegan sus propuestas significantes como un modo de poner en cuestión los mecanismos propios de la representación, de llevar más allá de la referencialidad discursiva sus creaciones, de proponer un marco interpretativo alternativo al hegemónico desde el que el interactor pueda construir su propia interpretación del universo narrativo. En este caso, nos detendremos en el estudio y análisis del proyecto The undocumented (Marco Williams, 2013), cuya estrategia discursiva principal estriba en la triple materialización del producto: un documental cinematográfico transmedia que complementa la narración fílmica con una aplicación interactiva multimedia on line The map of the undocumented y el videojuego crítico The migrant trail. La hibridación de formatos y medios propone el camino para una reflexión metalingüística y política, con (y desde) estas nuevas formas audiovisuales, dirigidas a aquellos espectadores dispuestos a sumergirse en experiencias narrativas activas que se extienden indefinidamente.
Assessing the continuity of the blue ice climate record at Patriot Hills, Horseshoe Valley, West Antarctica
Authors: Winter Kate , Woodward John , Dunning Stuart A. , Turney Chris S. M. , Fogwill Christopher J. , Hein Andrew S. , Golledge Nicholas R. , Bingham Robert G. , Marrero Shasta M. , Sugden David E. , Ross Neil 
Published: February 2016

AbstractWe use high‐resolution ground‐penetrating radar (GPR) to assess the continuity of the Blue Ice Area (BIA) horizontal climate record at Patriot Hills, Horseshoe Valley, West Antarctica. The sequence contains three pronounced changes in deuterium isotopic values at ~18 cal ka, ~12 cal ka, and ~8 cal ka. GPR surveys along the climate sequence reveal continuous, conformable dipping isochrones, separated by two unconformities in the isochrone layers, which correlate with the two older deuterium shifts. We interpret these unconformities as discontinuities in the sequence, rather than direct measures of climate change. Ice sheet models and Internal Layer Continuity Index plots suggest that the unconformities represent periods of erosion occurring, as the former ice surface was scoured by katabatic winds in front of mountains at the head of Horseshoe Valley. This study demonstrates the importance of high‐resolution GPR surveys for investigating both paleoflow dynamics and interpreting BIA climate records.
What would happen to Superstorm Sandy under the influence of a substantially warmer Atlantic Ocean?
Authors: Lau William K. M. , Shi J. J. , Tao W. K. , Kim K. M. 
Published: February 2016

AbstractBased on ensemble numerical simulations, we find that possible responses of Sandy‐like superstorms under the influence of a substantially warmer Atlantic Ocean bifurcate into two groups. In the first group, storms are similar to present‐day Sandy from genesis to extratropical transition, except they are much stronger, with peak Power Destructive Index (PDI) increased by 50–80%, heavy rain by 30–50%, and maximum storm size (MSS) approximately doubled. In the second group, storms amplify substantially over the interior of the Atlantic warm pool, with peak PDI increased by 100–160%, heavy rain by 70–180%, and MSS more than tripled compared to present‐day Superstorm Sandy. These storms when exiting the warm pool, recurve northeastward out to sea, subsequently interact with the developing midlatitude storm by mutual counterclockwise rotation around each other and eventually amplify into a severe Northeastern coastal storm, making landfall over the extreme northeastern regions from Maine to Nova Scotia.
High‐resolution auroral acceleration signatures within a highly dynamic onset arc
Authors: Motoba Tetsuo , Hirahara Masafumi 
Published: February 2016

AbstractOn 16 March 2006, the Reimei spacecraft observed dynamic small‐scale vortex‐like structures along an east‐west elongated onset arc, subsequently followed by the auroral expansion. Within a few seconds when Reimei crossed over the arc, detailed comparisons of the simultaneous conjugate auroral imaging and particle observations with high resolution were made to reveal the fine‐scale acceleration processes acting within/around the flux tube of the bright auroral structures. In the surrounding dark region, Alfvénic accelerated electron fluxes—time‐dispersive, field‐aligned electron bursts spanning a broad range of energies—became most noticeable. The dominant contributor to the central bright region, on the other hand, was monoenergetic electron fluxes in 3–7 keV at larger pitch angles (>30°) rather than the Alfvénic electron fluxes. The Reimei observations suggest that the Alfvénic acceleration process operates in the vicinity of small‐scale auroral structures but plays a less significant role in powering the central bright emissions.
Contribution of the topside and bottomside ionosphere to the total electron content during two strong geomagnetic storms
Authors: Zhu Qingyu , Lei Jiuhou , Luan Xiaoli , Dou Xiankang 
Published: February 2016

AbstractIn this study, the ionospheric observations from ionosondes, GPS receivers, and incoherent scatter radars (ISR) at low and middle latitudes were used to investigate the contribution of the bottomside and topside ionosphere to the total electron content (TEC) during the September 2005 and December 2006 geomagnetic storms. It was found that the contribution of the bottomside TEC below F2 peak (BTEC) to the ionosonde ionospheric TEC (ionosonde ITEC), namely, BTEC/ITEC was almost constant during both quiet and storm times, while the ratio of BTEC to GPS TEC (i.e., BTEC/GPS‐TEC) underwent obvious diurnal variations at all stations. The BTEC/GPS‐TEC during the positive phase was similar to that during quiet time, regardless of the formation mechanisms of the observed positive phases. Moreover, our analysis revealed that the ISR calculated BTEC/ITEC during positive ionospheric phases was comparable to that during quiet time. This suggests that the positive phases in these two events mainly occurred around the F2 peak height. There were large differences between the calculated BTEC/ITEC from the ISR observations and BTEC/GPS‐TEC during the negative phase or at night when the plasmasphere possibly contributed significantly to the TEC in the relative sense. Although the absolute changes of the topside TEC were larger than the bottomside TEC at low and middle latitudes associated with the larger topside effective ionospheric thickness, unlike the October 2003 superstorms, the relative changes of the topside TEC to the quiet time reference in these two strong storms were not greater than the changes of the bottomside TEC and peak density NmF2.
MIDAS robust trend estimator for accurate GPS station velocities without step detection
Authors: Blewitt Geoffrey , Kreemer Corné , Hammond William C. , Gazeaux Julien 
Published: February 2016

AbstractAutomatic estimation of velocities from GPS coordinate time series is becoming required to cope with the exponentially increasing flood of available data, but problems detectable to the human eye are often overlooked. This motivates us to find an automatic and accurate estimator of trend that is resistant to common problems such as step discontinuities, outliers, seasonality, skewness, and heteroscedasticity. Developed here, Median Interannual Difference Adjusted for Skewness (MIDAS) is a variant of the Theil‐Sen median trend estimator, for which the ordinary version is the median of slopes vij = (xj–xi)/(tj–ti) computed between all data pairs i > j. For normally distributed data, Theil‐Sen and least squares trend estimates are statistically identical, but unlike least squares, Theil‐Sen is resistant to undetected data problems. To mitigate both seasonality and step discontinuities, MIDAS selects data pairs separated by 1 year. This condition is relaxed for time series with gaps so that all data are used. Slopes from data pairs spanning a step function produce one‐sided outliers that can bias the median. To reduce bias, MIDAS removes outliers and recomputes the median. MIDAS also computes a robust and realistic estimate of trend uncertainty. Statistical tests using GPS data in the rigid North American plate interior show ±0.23 mm/yr root‐mean‐square (RMS) accuracy in horizontal velocity. In blind tests using synthetic data, MIDAS velocities have an RMS accuracy of ±0.33 mm/yr horizontal, ±1.1 mm/yr up, with a 5th percentile range smaller than all 20 automatic estimators tested. Considering its general nature, MIDAS has the potential for broader application in the geosciences.
Wind‐wave‐induced velocity in ATI SAR ocean surface currents: First experimental evidence from an airborne campaign
Authors: Martin Adrien C. H. , Gommenginger Christine , Marquez Jose , Doody Sam , Navarro Victor , Buck Christopher 
Published: February 2016

AbstractConventional and along‐track interferometric (ATI) Synthetic Aperture Radar (SAR) senses the motion of the ocean surface by measuring the Doppler shift of reflected signals. Measurements are affected by a Wind‐wave‐induced Artifact Surface Velocity (WASV) which was modeled theoretically in past studies and has been estimated empirically only once before with Envisat ASAR by Mouche et al. (2012). An airborne campaign in the tidally dominated Irish Sea served to evaluate this effect and the current retrieval capabilities of a dual‐beam SAR interferometer known as Wavemill. A comprehensive collection of Wavemill airborne data acquired in a star pattern over a well‐instrumented validation site made it possible for the first time to estimate the magnitude of the WASV, and its dependence on azimuth and incidence angle from data alone. In light wind (5.5 m/s) and moderate current (0.7 m/s) conditions, the wind‐wave‐induced contribution to the measured ocean surface motion reaches up to 1.6 m/s upwind, with a well‐defined second‐order harmonic dependence on direction to the wind. The magnitude of the WASV is found to be larger at lower incidence angles. The airborne WASV results show excellent consistency with the empirical WASV estimated from Envisat ASAR. These results confirm that SAR and ATI surface velocity estimates are strongly affected by WASV and that the WASV can be well characterized with knowledge of the wind knowledge and of the geometry. These airborne results provide the first independent validation of Mouche et al. (2012) and confirm that the empirical model they propose provides the means to correct airborne and spaceborne SAR and ATI SAR data for WASV to obtain accurate ocean surface current measurements. After removing the WASV, the airborne Wavemill‐retrieved currents show very good agreement against ADCP measurements with a root‐mean‐square error (RMSE) typically around 0.1 m/s in velocity and 10° in direction.
An Abel transform for deriving line‐of‐sight wind profiles from LEO‐LEO infrared laser occultation measurements
Authors: Syndergaard S. , Kirchengast G. 
Published: February 2016

AbstractWe have developed a formula for the retrieval of the line‐of‐sight (l.o.s.) wind speed from future low Earth orbit (LEO) satellite‐to‐satellite infrared laser occultation measurements. The formula involves an Abelian integral transform akin to the Abel transform widely used for deriving refractive index from bending angle in Global Navigation Satellite System radio occultation measurements. Besides the Abelian integral transform, the formula is derived from a truncated series expansion of the volume absorption coefficient as a function of frequency and includes a simple absorption‐line‐asymmetry correction term. A first‐order formulation (referred to as the standard formula) is complemented by higher‐order terms that can be used for high‐accuracy computations. Under the assumptions of spherical symmetry and perfect knowledge of spectroscopy, the residual l.o.s. wind error from using the standard formula rather than the high‐accuracy formula is assessed to be small compared to that anticipated from measurement errors in a real experiment. Applying the new formula just in standard form to future infrared laser transmission profiles would therefore enable the retrieval of l.o.s. stratospheric wind profiles with an accuracy limited mainly by measurement errors, residual spectroscopic errors, and deviations from spherical symmetry.
Estimating groundwater dynamics at a Colorado River floodplain site using historical hydrological data and climate information
Authors: Chen Jinsong , Hubbard Susan S. , Williams Kenneth H. , Ficklin Darren L. 
Published: February 2016

AbstractLong‐term prediction of groundwater dynamics is important for assessing water resources and their impacts on biogeochemical cycling. However, estimating future groundwater dynamics is challenging due to the wide range of spatiotemporal scales in hydrological processes and uncertainty in future climate conditions. In this study, we develop a Bayesian model to combine small‐scale historical hydrological data with large‐scale climate information to estimate groundwater dynamics at a floodplain site in Rifle, Colorado. Although we have only a few years of groundwater elevation measurements, we have 47 years of streamflow data from a gaging station approximately 43 km upstream and long‐term climate prediction on the Upper Colorado River Basin. To estimate future daily groundwater dynamics, we first develop a time series model to downscale the monthly streamflow derived from climate information to daily streamflow, and then transform the daily streamflow to groundwater dynamics at the downstream floodplain site. We use Monte Carlo methods to estimate future groundwater dynamics at the site through sampling from the joint posterior probability distribution. The results suggest that although future groundwater levels are expected to be similar to the current levels, the timing of the high groundwater levels is predicted to occur about 1 month earlier. The developed framework is extendable to other sites to estimate future groundwater dynamics given disparate data sets and climate projections. Additionally, the obtained estimates are being used as input to a site‐specific watershed reactive transport models to predict how climate‐induced changes will influence future biogeochemical cycling relevant to a variety of ecosystem services.
Exogenously produced CO2doubles the CO2efflux from three north temperate lakes
Authors: Wilkinson Grace M. , Buelo Cal D. , Cole Jonathan J. , Pace Michael L. 
Published: February 2016

AbstractIt is well established that lakes are typically sources of CO2to the atmosphere. However, it remains unclear what portion of CO2efflux is from endogenously processed organic carbon or from exogenously produced CO2transported into lakes. We estimated high‐frequency CO2and O2efflux from three north temperate lakes in summer to determine the proportion of the total CO2efflux that was exogenously produced. Two of the lakes were amended with nutrients to experimentally enhance endogenous CO2uptake. In the unfertilized lake, 50% of CO2efflux was from exogenous sources and hydrology had a large influence on efflux. In the fertilized lakes, endogenous CO2efflux was negative (into the lake) yet exogenous CO2made the lakes net sources of CO2to the atmosphere. Shifts in hydrologic regimes and nutrient loading have the potential to change whether small lakes act primarily as reactors or vents in the watershed.
Strong turbulent mixing induced by internal bores interacting with internal tide‐driven vertically sheared flow
Authors: Masunaga Eiji , Fringer Oliver B. , Yamazaki Hidekatsu , Amakasu Kazuo 
Published: February 2016

AbstractWe observed the formation of an internal bore interacting with the vertically sheared flow generated during the previous phase of the internal tide, which resulted in strong turbulent mixing. The rate of turbulent kinetic energy dissipation reached on the order of 10−5 W kg−1 during the event. Numerical simulations reproduced the observed interaction of internal bores with the sheared flow and verified the hypothesized breaking and mixing mechanism. The numerical results indicated that the Iribarren number, or the ratio of the topographic slope to the internal wave slope, plays a major role in the mixing intensity and types of internal bores. It was found that waves with low Iribarren numbers lead to bores that interact with vertically sheared flows induced by the previous phase of the internal tide and are more likely to produce strong wave breaking and mixing.
Predictors and signatures of recovery from neglect in acute stroke
Authors: Umarova Roza M. , Nitschke Kai , Kaller Christoph P. , Klöppel Stefan , Beume Lena , Mader Irina , Martin Markus , Hennig Jürgen , Weiller Cornelius 
Published: February 2016

ObjectiveSpatial neglect can either spontaneously resolve or persist after stroke; the latter is associated with a poorer outcome. We aimed to investigate the neural correlates and predictors of favorable versus poor recovery from neglect in acute stroke.MethodsIn addition to neuropsychological testing, we explored task‐related functional magnetic resonance imaging activation and functional connectivity in 34 patients with neglect and/or extinction. Patients were examined at 2 to 3 days (acute phase I) and 8 to 10 days (acute phase II), and some of them at 4 to 6 months (chronic phase) poststroke.ResultsCourse of recovery was predicted by the strength of functional connectivity between the right parietal and left prefrontal and parietal regions, as early as acute phase I. During acute phase II, favorable recovery from neglect was associated with increased activation in the left prefrontal and right parietal regions, an effect not observed at any time point in patients with poor acute recovery. The extent of neglect amelioration correlated with activation gain in the right attention centers; stronger activation of their left functional homologues correlated with better spatial processing in the neglected hemispace during both of the acute examination phases.InterpretationSystem excitability and early recruitment of contralesional functional homologues represented specific features of favorable recovery in acute stroke. In severe strokes leading to neglect, contralesional functional homologues support recovery by modulating the preserved ipsilesional network, and initial functional connectivity between them might predict recovery course and help to identify patients with potentially poor recovery requiring more intensive early rehabilitation. Ann Neurol 2016;79:673–686