1,362,725 research outputs found
La valutazione dell’impatto sulle comunità locali .... (in Linee Guida per il monitoraggio e la valutazione degli eventi a valenza turistica in Sardegna, a cura di Andrea Zara)
No full textGli eventi a valenza turistica determinano una ricaduta economica sui territori che li ospitano e su quelli
limitrofi, ma generano anche un impatto complessivoche va oltre a quello strettamente economico perché
chiama in causa ulteriori fattori di natura socialee ambientale. Gli eventi e gli effetti prodotti coinvolgono,
direttamente o indirettamente, numerosi soggetti e portatori di interessi: gli organizzatori, le istituzioni, gli
operatori economici pubblici e privati, i consumatori turisti che partecipano all'evento, la comunità
residente e, in definitiva, il territorio nel suo complesso. Riconoscendo tale natura sistemica, il quaderno di
ricerca intende offrire un contributo utile al monitoraggio e alla valutazione delle ricadute degli eventi a
valenza turistica in Sardegna sui diversi soggetti interessati. In maniera operativa, vengono fornite
indicazioni e metodologie per la raccolta dei dati, l’analisi e l’interpretazione della customer experience, delle
perfomance delle imprese, della percezione delle comunità ospitanti e delle ricadute economiche nel
territorio
La valenza ethica del cosmo
No full textLa valenza "ethica" del cosmo rimanda alla ricerca del significato complessivo di una serie di modelli scientifici elaborati e sviluppati nel corso del Rinascimento e dell'Età moderna, accomunati dalla comprensione della natura come cosmo e dall'individuazione di un principio ordinatore della realtà, Logos valido tanto in ambito morale quanto teoretico. L'itinerario di queste pagine, denso e articolato, riprende posizioni teoretiche di alcuni tra i massimi protagonisti della storia del pensiero sulle connessioni tra ordine del cosmo e ordine dell'ethos (Marsilio Ficino, Giordano Bruno, Leibniz, Kant, Herder, Hegel, Schopenhauer) fino alla "Wissenschaftliche Weltauffassung" di un autore già "contemporaneo" come Moritz Schlick, lasciando intravvedere come il rapporto fra modelli cosmologici ed etica non costituisca una semplice metafora o il pretesto per una estrinseca analogia fra il mondo della natura e quello della prassi, quanto piuttosto l'esito di un radicale approfondimento di carattere scientifico e teoretico sul significato dell'ethos
Viscoelastic behavior of an epoxy resin modified with recycled waste particles analyzed through a fractional model
No full textIt is well-known that the addition of randomly dispersed particles in polymers influences their linear viscoelastic behavior and dynamic mechanical properties. The aim of this study was to describe the viscoelastic behavior of an epoxy resin modified by waste glass and rubber particles using the linear fractional spring-pot model. Unlike complex classical exponential models, fractional models, being only two-parameter dependent, make it easier to characterize the viscoelastic behavior of materials. Isothermal relaxation and single frequency sweep temperature dynamic tests were carried out in a dynamic mechanical analyzer DMA 150 by varying the content of the particles from 0 to 20% by weight. Overall, the results of this study evidence that using waste materials as additives for polymer compounds is a practical and sustainable possibility when it comes to modifying their viscoelastic properties
Epoxy resins as a matrix material in advanced fiber-reinforced polymer (FRP) composites
No full textThis chapter discusses the epoxy resins which, thanks to their good and versatile properties, can be considered nowadays the most important class of thermosetting polymers. In particular the chapter first reviews both the epoxy resins commonly available on the market, including a new class of bio-derived epoxy resins, and the most-used curing agents.
It then describes the principal characteristics of the epoxy resins and how it is possible to enhance them by adding several fillers to the epoxy system.
Finally, the chapter analyzes the main engineering fields in which epoxy resins find application today and their possible future utilization
For a Hermeneutics of Incompleteness: Ricoeur and Jervolino in Dialogue
No full textThe essay deals with two texts within Jervolino's wide scientific production consecrated to Ricoeur's work. The first one, Ricoeur. L’amore difficile (1994), reflecting on the results of Ricœur's work Soi-même comme un autre looks for a philosophical hermeneutics of the biblical faith as fulfilment of ricoeurian project. In his Preface to this book Ricoeur acknowledges such hermeneutics as lacking. The second one, an article published in 2004 in the review «Archives de Philosophie», point out the topic of translation as a possible paradigm of ricoeurian thinking looking at his last main book, La mémoire, l'histoire, l'oubli. In this article Jervolino seems to accept the openness of life and therefore the incompleteness at the end of Ricoeur's work. In the last paragraph of the essay these topics are connected to Ricoeur's idea of phenomenology of religion in which translation as paradigm plays an important role and its link to forgiveness is cleared
A Dynamic Framework for Sustainable Open Innovation in the Food Industry
No full textPurpose – This study takes a holistic perspective to investigate how open innovation supports sustainability and the contribution to the UN Sustainable Development Goals (SDGs).
Design/methodology/approach – The study is based on an in-depth single case study of Andriani SpA, a leading Italian company in the food industry. The case is built by triangulating data from direct observations, documentary analysis and semi-structured interviews.
Findings – The findings show an organization that has developed its competitive advantage by adopting open innovation to embed sustainability in its strategy and business model. The case study complements the understanding of how open innovation can effectively drive strategic renewal and innovation activities to address sustainability objectives in the food industry.
Originality – This study contributes to theoretical development by offering new and insightful explanations of firms’ strategic behavior and coevolution toward sustainability via open innovation. It provides practitioners, policymakers, researchers, and students with reflections and inspiration about how open innovation may be deployed to support a holistic strategic renewal aimed at sustainability objectives, such as the SDGs, in the food industry
Valenza Baldassare
No full textSi indaga la produzione artistica di Valenza Baldassare, argentiere di Palermo documentato nel Settecento in SiciliaWe investigate the artistic production of Valenza Baldassare, a silversmith from Palermo documented in the eighteenth century in Sicil
The effect of a liquid CTBN rubber modifier on the thermo-kinetic parameters of an epoxy resin during a pultrusion process
No full textRheo-kinetic behaviour of an epoxy resin, coupled with an anhydride hardener, with different CTBN liquid rubber concentration (0-15 phr), used in fibre reinforced plastics, was analysed comparing experimental data with theoretical models. The modelling of technological pultrusion process for thermoset matrix composites, developed through a numerical code realised with MATLAB, is reported, too. The model includes conduction and cure heat, degree of cure and viscosity evolution during the curing within the die. Considerable differences in process condition, using different rubber amount, are obtained. The numerical modelling of process conditions shows that the CTBN rubber presence in the epoxy resin reduces temperatures and times of cure
Depression as a cardiovascular disorder: central-autonomic network, brain-heart axis, and vagal perspectives of low mood
No full textIf depressive symptoms are not caused by the physiological effects of a substance or other medical or neurological conditions, they are generally classified as mental disorders that target the central nervous system. However, recent evidence suggests that peripheral neural dynamics on cardiovascular control play a causal role in regulating and processing emotions. In this perspective, we explore the dynamics of the Central-Autonomic Network (CAN) and related brain-heart interplay (BHI), highlighting their psychophysiological correlates and clinical symptoms of depression. Thus, we suggest that depression may arise from dysregulated cardiac vagal and sympathovagal dynamics that lead to CAN and BHI dysfunctions. Therefore, treatments for depression should target the nervous system as a whole, with particular emphasis on regulating vagal and BHI dynamics
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