"Nuove forme di comunicazione". Una conversazione con Paola Carbone di Emanuele Monegato

Nuove forme di comunicazione Una conversazione con Paola Carbone di Emanuele Monegat

"Designing Identity: Technology, Media and Politics in Complexity"

During historical transitions, it is a common practice to question the boundaries of identity. Indeed it becomes strategically important to analyse and decodify both the new emerging symbols and the discourses on the Self which define the dynamics of identity representation. Since in our contemporary age contradiction and conflict permeate the categories of values and the mechanisms of representation of reality, it is interesting to investigate the following issues: - the ways in which literature connects cultural innovation, new kinds of knowledge, cognitive practice, and the ethical and the moral dimension of civil and social coexistence. If not fully identified, the 'new' takes on the character of the monstrous; - the renewed individual and/or collective narrative logic(s) and its(their) fields of action, as for example social media storytelling or unsettling web-culture phenomena such as digital after-death; - the complexity of contemporary social systems, including migration and terrorist policies which move the concept of inter/multiculturalism further and mark even more intensely a clear conflict with all those cultural key factors that we perceive as belonging to our cultural identity or heritage. Think, for example, about the sociological concept of ‘super-diversity.’ - the role law plays in describing these new collective dynamics in a renewed negotiation between rights and duties, and the necessity to repossess a strong ethical dimension. The panel aims at investigating the ways in which we can shape, enact/re-enact our existence and our being in the contemporary world within the design of culture, intended as a sense-making intellectual framework

Evaluation of methods for the determination of tortuosity of Li-ion battery separators

The porosities and tortuosities are commonly utilized to characterize the microstructure of a Li-ion battery's separator and are adopted as key input parameters in advanced battery models. Herein, a general classification of the tortuosity for a porous medium is introduced based on its bi-fold significance, i.e., the geometrical and physical tortuosities. Then, three different methods for the determination of separator's electrical tortuosity are introduced and compared, which include the empirical Bruggeman equation, the experimental method using Electrochemical Impedance Spectrum (EIS) testing a the numerical method using realistic 3D microstructure of the separator obtained from nanoscale X-ray Computed Tomography (XCT). In addition, the connection between the geometrical tortuosity and the electrical tortuosity of a separator is established by introducing the electrical phenomenological factor (\b{eta}_e), which can facilitate the understanding of the relationship between the microstructure characteristics and transport properties of the separators. Furthermore, to quantitively compare the values of the tortuosities determined by different methods, the corresponding effective transport coefficients ({\delta}) are compared, which was usually used as a correction for effective diffusivity and conductivity of electrolytes in porous media.Comment: 30 pages, 6 figures, submitted to journal of energy storag

Incidenti stradali in adolescenza. Il ruolo del supporto genitoriale

Gli incidenti stradali sono molto frequenti durante il periodo adolescenziale. Le ricerche in questo campo hanno limitatamente indagato il funzionamento emotivoadattivo degli adolescenti ed il ruolo svolto dalla loro percezione del supporto familiare. Questo studio vuole indagare il funzionamento emotivo-adattivo, la difficoltà nell’identificare e nel descrivere le proprie emozioni ed il supporto familiare percepito, in adolescenti che hanno esperito incidenti stradali. N=144 adolescenti che afferivano al Pronto Soccorso, a seguito di incidenti stradali a bordo di un motoveicolo, sono stati valutati attraverso questionari self-report. Adolescenti con alti tassi di incidenti stradali hanno mostrato un funzionamento emotivo-comportamentale disadattivo e maggiori difficoltà ad identificare e descrivere le proprie emozioni. Inoltre, uno scarso supporto familiare percepito è risultato essere associato con un funzionamento disadattivo dell’adolescente, a sua volta associato ad incidenti ripetuti. Questi risultati possono sostenere la pianificazione di programmi di prevenzione volti ad adolescenti, basati sulla promozione di una maggiore capacità di ascolto e riflessione sulle proprie emozioni.Road collisions are frequent during adolescence. Research in this field has limitedly focused on adolescents’ emotional–behavioral functioning and on the role played by family support. This study aims to investigate the emotional–behavioral functioning, difficulties to identify and describe emotions and family support in adolescents that have experienced motorbikes collisions. N= 144 adolescents who visited an emergency department for motor vehicle accidents were assessed through self-report questionnaires assessing. Adolescents that have experienced a higher rates of motorbike collisions showed more maladaptive emotional–behavioral functioning and more difficulties to identify and describe their emotions. Further, lower perceived family support is associated with adolescents’ maladaptive functioning. These findings may help the planning of prevention programs for adolescents, based on the enhancing of the capacity of ‘‘listening” to and reflecting on one’s own feelings and mood

Choreographies with Secure Boxes and Compromised Principals

We equip choreography-level session descriptions with a simple abstraction of a security infrastructure. Message components may be enclosed within (possibly nested) "boxes" annotated with the intended source and destination of those components. The boxes are to be implemented with cryptography. Strand spaces provide a semantics for these choreographies, in which some roles may be played by compromised principals. A skeleton is a partially ordered structure containing local behaviors (strands) executed by regular (non-compromised) principals. A skeleton is realized if it contains enough regular strands so that it could actually occur, in combination with any possible activity of compromised principals. It is delivery guaranteed (DG) realized if, in addition, every message transmitted to a regular participant is also delivered. We define a novel transition system on skeletons, in which the steps add regular strands. These steps solve tests, i.e. parts of the skeleton that could not occur without additional regular behavior. We prove three main results about the transition system. First, each minimal DG realized skeleton is reachable, using the transition system, from any skeleton it embeds. Second, if no step is possible from a skeleton A, then A is DG realized. Finally, if a DG realized B is accessible from A, then B is minimal. Thus, the transition system provides a systematic way to construct the possible behaviors of the choreography, in the presence of compromised principals

Molecules as building blocks for a CFD-PBE model to describe the effect of fluid dynamics on nanoparticle formation

Recently research efforts have focused on the effect of fluid dynamics on particle formation processes, by using special mixing devices, that allow to perform controlled experiments, and complex models, that allow to quantify its influence on the final particle size. The standard modelling approach consists in considering three different steps: nucleation, molecular growth and aggregation. This is usually done by simulating the process with a population balance equation (PBE) coupled with computational fluid dynamics (CFD), in which these three different steps are considered separately. The PBE is often written using as internal coordinate the actual particle size or volume; here, we propose a new modelling strategy that overcomes the concepts of nucleation and molecular growth, by using as internal coordinate the number of molecules which aggregate, or self-assemble, together forming a nanoparticle. The novel modelling approach is therefore defined as a purely-aggregative model

Use of Conventional and Innovative Technologies for the Production of Food Grade Hop Extracts: Focus on Bioactive Compounds and Antioxidant Activity

This study investigated the use of conventional and innovative extraction methods to produce food-grade hop extracts with high antioxidant capacity and content in bioactive compounds. Conventional extractions (CONV) were performed under dynamic maceration at 25 and 60 °C; innovative extractions were performed using two ultrasound systems, a laboratory bath (US) and a high-power ultrasound bath (HPUS), and a high-pressure industrial process. For CONV, US, and HPUS extractions the effect of the extraction time was also tested. Experimental results showed that extraction method, temperature, and time affect to a different extent the phenolic profile and have a significant effect (p < 0.05) on the total phenolic content, total flavonoid content, antiradical capacity (ABTS), chlorophyll α, and total carotenoids content. Overall, US and CONV 60 °C extractions showed the highest extraction efficiency for almost all the investigated compounds, however, the extraction method and time to be used strongly depends on the target compounds to extract

Constant Chemical Potential-Quantum Mechanical-Molecular Dynamics simulations of the Graphene-electrolyte double layer

We present the coupling of two frameworks -- the pseudo-open boundary simulation method known as constant potential Molecular Dynamics simulations (C$\mu$MD), combined with QMMD calculations -- to describe the properties of graphene electrodes in contact with electrolytes. The resulting C$\mu$QMMD model was then applied to three ionic solutions (LiCl, NaCl and KCl in water) at bulk solution concentrations ranging from 0.5 M up to 6 M in contact with a charged graphene electrode. The new approach we are describing here provides a simulation protocol to control the concentration of the electrolyte solutions while including the effects of a fully polarizable electrode surface. Thanks to this coupling, we are able to accurately model both the electrode and solution side of the double layer and provide a thorough analysis of the properties of electrolytes at charged interfaces, such as the screening ability of the electrolyte and the electrostatic potential profile. We also report the calculation of the integral electrochemical double layer capacitance in the whole range of concentrations analysed for each ionic species, while the QM simulations provide access to the differential and integral quantum capacitance. We highlight how subtle features, such as the adsorption of potassium at the interface or the tendency of the ions to form clusters, emerge from our simulations, contribute to explaining the ability of graphene to store charge and suggest implications for desalination.Comment: 28 pages, 10 figure