201 research outputs found
La dimensione territoriale nell\u2019approccio dei living labs. Verso i territorial living labs per il sostegno alle citt\ue0 e alle regioni\u2018smart\u2019
Le politiche comunitarie di sostegno alla pianificazione spaziale centrate sul policentrismo hanno cercato di innestare dinamiche di cambiamento della situazione di stallo economico e sociale delle regioni periferiche a nord e a sud dell\u2019area centrale del continente europeo. Il policentrismo allude alla possibilit\ue0 di generazione di nuove centralit\ue0 in aree deboli come contrasto al declino tendenziale e per rafforzare la coesione territoriale che si affianca alla coesione sociale ed economica nelle principali politiche della UE. Una prosecuzione di queste politiche avviate con l\u2019Esdp e sviluppate in termini di analisi con Espon, \ue8 data dai programmi comunitari sulle ICT che coinvolgono direttamente anche le imprese private specializzate del settore. Il tema quindi \ue8 la creazione di nuove centralit\ue0 in regioni dove i fenomeni urbani non riescono o non possono strutturalmente far parte dei sistemi metropolitani mondiali di accumulazione di capitali prevalentemente finanziari che, a loro volta, sono travolti da una crisi che sembra assumere i caratterini di un declino sistemico e strutturale. Le ICT costituiscono un ambito riflessivo e di elaborazione di politiche che possono cambiare le citt\ue0, non solo di quelle che fanno parte delle aree forti e centrali del continente europeo, ma anche nelle aree deboli dove il concetto di \u2018sviluppo\u2019 sembra essere superato in favore di volont\ue0 diverse e pi\uf9 centrate a fornire risposte autocentrate alla domanda sociale. E\u2019 su quest\u2019ultima che pu\uf2 attestarsi e concentrarsi l\u2019offerta di tecnologia ed \ue8 sulla innovazione sociale che l\u2019avanzamento tecnologico e la creazione di nuovi mercati potrebbero avere una spinta decisiva a livello locale e sovra locale. Il contributo presenta una sintesi dei risultati dell\u2019avvio del progetto Peripheria che riguarda il supporto ad alcune Smart City e Living Labs per sperimentare modi innovativi condivisi in reti di produzione territoriale
Response of a mixed grass prairie to an extreme precipitation event
Citation: Concilio, A. L., Prevey, J. S., Omasta, P., O'Connor, J., Nippert, J. B., & Seastedt, T. R. (2015). Response of a mixed grass prairie to an extreme precipitation event. Ecosphere, 6(10), 12. doi:10.1890/es15-00073.1Although much research has been conducted to measure vegetation response to directional shifts in climate change drivers, we know less about how plant communities will respond to extreme events. Here, we evaluate the response of a grassland community to an unprecedented 43 cm rainfall event that occurred in the Front Range of Colorado in September, 2013 using vegetation plots that had been monitored for response to simulated precipitation changes since 2011. This rain caused soils to stay at or above field capacity for multiple days, and much of the seed bank germinated following the early autumn event. Annual introduced grasses, especially cheatgrass (Bromus tectorum), and several introduced forbs demonstrated strong positive increases in cover the following growing season. Native cool season grasses and native forbs showed limited changes in absolute cover despite continued high soil water availability, while native warm season grasses increased in cover the following summer. Treatments that previously altered the amounts and seasonality of rainfall during the 2011-2013 interval showed legacy effects impacting cover responses of introduced species and warm-season native grasses. Resin bag estimates of inorganic nitrogen flux resulting from the event indicated twice as much nitrogen movement compared to any previous collections during the 2011-2013 interval. Nitrogen additions to a subset of plots made in spring of 2014 demonstrated that the relative cover of introduced species could be further increased with additional soil nitrogen. Collectively, these results support the contention that extreme precipitation events can favor species already benefiting from other environmental change drivers
Anterior Segment-Optical Coherence Tomography features in Blau syndrome.
Blau syndrome (BS) is a rare granulomatous auto-inflammatory disease, characterized by the classic clinical triad of joints, skin and ocular involvements. Ocular manifestation usually consists in a bilateral insidious chronic anterior uveitis with a potential evolution to panuveitis. We describe the case of two siblings, an 8-years old female and a 5-years old male, with a diagnosis of BS, evaluated by Anterior Segment-Optical Coherence Tomography (AS-OCT). In the female patient, slit-lamp examination revealed bilateral anterior granulomatous uveitis and inflammatory sequelae. AS-OCT revealed high intensity reflective layers in the anterior cornea, hyperreflective dots both in the aqueous humor and in the posterior corneal surface. In the male, no signs of inflammation were detected both on slit-lamp examination and AS-OCT scans. AS-OCT is a valuable, non-invasive tool that could improve the diagnosis of ocular involvement, better characterize and follow-up corneal alterations and anterior segment features in pediatric patients with BS
Demo: The Triangolazioni Mobile Guide for Exploring the Interconnections between Science, Art and Territory
Electrical Hole Transport Properties of an Ambipolar Organic Compound With Zn-Atoms on a Crystalline Silicon Heterostructure
In this paper, we investigate the electrical hole transport properties of an organic/inorganic heterostructure consisting of a thin organic film, that combines hole and electron conducting molecules around a bridging Zn-atom, deposited on top of an n-type crystalline silicon substrate. Current-voltage characteristics and capacitance voltage measurements have been used for the determination of the organic layer dielectric and hole conduction parameters
Numerical and experimental transition results evaluation for a morphing wing and aileron system
A new wing-tip concept with morphing upper surface and interchangeable conventional and morphing ailerons was designed, manufactured, bench and wind tunnel tested. The development of this wing tip model was performed in the frame of an international CRIAQ project, and the purpose was to demonstrate the wing upper surface and aileron morphing capabilities in improving the wing tip aerodynamic performances. During numerical optimization with ‘in-house’ genetic algorithm software, and during wind tunnel experimental tests, it was demonstrated that the air flow laminarity over the wing skin was promoted, and the laminar flow was extended with up to 9% of the chord. Drag coefficient reduction of up to 9% was obtained when the morphing aileron was introduced
Mammals adjust diel activity across gradients of urbanization
Time is a fundamental component of ecological processes. How animal behavior changes over time has been explored through well-known ecological theories like niche partitioning and predator–prey dynamics. Yet, changes in animal behavior within the shorter 24-hr light–dark cycle have largely gone unstudied. Understanding if an animal can adjust their temporal activity to mitigate or adapt to environmental change has become a recent topic of discussion and is important for effective wildlife management and conservation. While spatial habitat is a fundamental consideration in wildlife management and conservation, temporal habitat is often ignored. We formulated a temporal resource selection model to quantify the diel behavior of 8 mammal species across 10 US cities. We found high variability in diel activity patterns within and among species and species-specific correlations between diel activity and human population density, impervious land cover, available greenspace, vegetation cover, and mean daily temperature. We also found that some species may modulate temporal behaviors to manage both natural and anthropogenic risks. Our results highlight the complexity with which temporal activity patterns interact with local environmental characteristics, and suggest that urban mammals may use time along the 24-hr cycle to reduce risk, adapt, and therefore persist, and in some cases thrive, in human-dominated ecosystems
Service Interaction Flow Analysis Technique for Service Personalization
Abstract
Service interaction flows are difficult to capture, analyze, outline, and represent for research and design purposes. We examine how variation of personalized service flows in technology-mediated service interaction can be modeled and analyzed to provide information on how service personalization could support interaction. We have analyzed service interaction cases in a context of technology-mediated car rental service. With the analysis technique we propose, inspired by Interaction Analysis method, we were able to capture and model the situational service interaction. Our contribution regarding technology-mediated service interaction design is twofold: First, with the increased understanding on the role of personalization in managing variation in technology-mediated service interaction, our study contributes to designing service management information systems and human-computer interfaces that support personalized service interaction flows. Second, we provide a new analysis technique for situated interaction analysis, particularly when the aim is to understand personalization in service interaction flows
LÃneas de investigación del laboratorio de sistemas de información avanzados: dinámica de tecleo, computación afectiva, extracción de relaciones semánticas, blockchain & smart contracts
El Laboratorio de Sistemas de Información Avanzados (LSIA) de la Facultad de IngenierÃa de la Universidad de Buenos Aires (UBA) cuenta con distintas lÃneas de investigación: Dinámica de Tecleo, Extracción de relaciones semánticas en español, Computación afectiva, Blockchain y Smart Contracts. En varias de estas lÃneas se han obtenido aportes relevantes al área mientras que otras están comenzando y mantienen objetivos prometedores.Eje: Innovación en Sistemas de Software.Red de Universidades con Carreras en Informátic
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