200,668 research outputs found
From individual dynamics at the microscopic scale to continuum dynamics at the macroscopic scale: The ant colony paradigm
No full textParticular attention is being paid these days to the mathematical modelling of the social behaviour of individuals in a biological population, for different reasons; on one hand there is an intrinsic interest in population dynamics of herds, on the other hand agent based models are being used in complex optimization problems (ACO's, i.e. Ant Colony Optimization). Further decentralized/parallel computing is exploiting the capabilities of discretization of nonlinear reaction-diffusion systems by means of stochastic interacting particle systems.
Among other interesting features, these systems lead to self organization phenomena, which exhibit interesting spatial patterns.
As a working example, an interacting particle system modelling the social behaviour of ants is proposed here, based on a system of stochastic differential equations, driven by social aggregating/repelling "forces". Specific reference to observed species in nature will be made.
Current interest concerns how properties on the macroscopic level depend on interactions at the microscopic level. Among the scopes of the seminar, a relevant one is to show how to bridge different scales at which biological processes evolve; in particular suitable "laws of large numbers" are shown to imply convergence of the evolution equations for empirical spatial distributions of interacting individuals to nonlinear reaction-diffusion equations for a so called mean field, as the total number of individuals becomes sufficiently large.
In order to support a rigorous derivation of the asymptotic nonlinear integrodifferential equation, problems of existence of a weak/entropic solution will be analyzed.
Further the existence of a nontrivial invariant probability measure is analyzed for the stochastic system of interacting particles.
As a further application of the same paradigm, a multiscale model for tumour-driven angiogenesis will be presented.
REFERENCES
[1] Boi S., Capasso V., and Morale D., Modelling the aggregating behaviour of ants of the species Polyergus Rufescens. Spatial heterogeneity in ecological models. Nonlinear Analysis. Real World Appl. 1:163-176, 2000.
[2] Burger M., Capasso V., and Morale D., On an aggregating model with long and short range interactions. Nonlinear Analysis. Real World Appl. 2006.
[3] Morale D., Capasso V. and Oelschlaeger K., An interacting particle system modelling aggregation behaviour: from individuals to populations. J. Mathematical Biology. 50:49-66, 2005.
[4] Capasso V., and Morale D., Stochastic modelling of tumour-induced angiogenesi
Evaluation of Corneal Structure and Endothelial Morphological Characteristics in Type 2 Diabetic and Non-Diabetic Patients [Letter]
No full textMario Graziano,1 Luigi Capasso,2 Nicola Rosa1 1Department of Medicine, Surgery and Dentistry, “Scuola Medica Salernitana”, University of Salerno, Baronissi, Salerno, Italy; 2Corneal Transplant Unit, ASL Napoli 1, Naples, ItalyCorrespondence: Mario GrazianoDepartment of Medicine, Surgery and Dentistry, “Scuola Medica Salernitana”, University of Salerno, Via Salvador Allende, Baronissi, 84081, Salerno, ItalyTel +39089 965063Fax +39089 672407Email [email protected]
View the original paper by Dr Beato and colleague
Amedeo Maiuri, Cronache degli Scavi di Ercolano. 1927-1961, Premessa e introduzione di M. capasso
No full textRaccolta di una serie di saggi dell'archeologo A. Maiuri variamente dedicati a momenti dello Scavo da lui condotto ad Ercolanoe ad avvenimenti e figure della storia dell'antica città campan
SOKNOPAIOU NESOS PROJECT MISSIONE ARCHEOLOGICA DEL CENTRO DI STUDI PAPIROLOGICI DELL’UNIVERSITÀ DEGLI STUDI DEL SALENTO, LECCE, A SOKNOPAIOU NESOS/DIME (EL-FAYYUM - EGITTO) TREDICESIMA CAMPAGNA, OTTOBRE-DICEMBRE 2016
No full textResoconto dei risultati della XIII Campagna di Scavo effettuata a Soknopaiou Nesos/DIme (Fayyum, Egitto) dalla Missione Archeologica del Centro di Studi Papirologici dell'Università del Salento, sotto la direzione di Mario Capasso e Paola Davol
Papiri e Storia Antica, ed. it. a c. di M. Capasso
No full textIl volume analizza il valore storiografico di papiri ed ostraka greci
Les papyrus latins d'Herculanum. Découverte, consistance, contenu
No full textEn raison de leur mauvais état de conservation, la centaine de papyrus qui constituent la bibliothèque latine découverte dans ce que l'on nomme la Villa des Pisons, à Herculanum, ont toujours été négligés par les chercheurs, à la différence des papyrus grecs. Il n'existe aucune étude d'ensemble sur cette bibliothèque en grande partie inédite. Le volume de M. Capasso, Les papyrus latins d'Herculanum. Découverte, consistance, contenu, trace un premier cadre, en s'arrêtant sur des problèmes tels que la consistance originelle de la bibliothèque latine, son contenu, ses rapports avec la bibliothèque grecque.Les livres dans le monde gréco-romai
Responsible nudging for social good: new healthcare skills for AI-driven digital personal assistants
No full textTraditional medical practices and relationships are changing given the widespread adoption of AI-driven technologies across the various domains of health and healthcare. In many cases, these new technologies are not specific to the field of healthcare. Still, they are existent, ubiquitous, and commercially available systems upskilled to integrate these novel care practices. Given the widespread adoption, coupled with the dramatic changes in practices, new ethical and social issues emerge due to how these systems nudge users into making decisions and changing behaviours. This article discusses how these AI-driven systems pose particular ethical challenges with regards to nudging. To confront these issues, the value sensitive design approach is adopted as a principled methodology that designers can adopt to design these systems to avoid harming and contribute to the social good. The AI for Social Good factors are adopted as the norms constraining maleficence. In contrast, higher-order values specific to AI, such as those from the EU High-Level Expert Group on AI and the United Nations Sustainable Development Goals, are adopted as the values to be promoted as much as possible in design. The use case of Amazon Alexa's Healthcare Skills is used to illustrate this design approach. It provides an exemplar of how designers and engineers can begin to orientate their design programs of these technologies towards the social good
18. Pernigotti (S.), Capasso (M.), Bakchias. Una città del deserto egiziano che torna a vivere
No full textFournet Jean-Luc. 18. Pernigotti (S.), Capasso (M.), Bakchias. Una città del deserto egiziano che torna a vivere. In: Revue des Études Grecques, tome 109, Juillet-décembre 1996. p. 739
Big Tech corporations and AI: A Social License to Operate and Multi-Stakeholder Partnerships in the Digital Age
No full textThe pervasiveness of AI-empowered technologies across multiple sectors has led to drastic changes concerning traditional social practices and how we relate to one another. Moreover, market-driven Big Tech corporations are now entering public domains, and concerns have been raised that they may even influence public agenda and research. Therefore, this chapter focuses on assessing and evaluating what kind of business model is desirable to incentivise the AI for Social Good (AI4SG) factors. In particular, the chapter explores the implications of this discourse for SDG #17 (global partnership) and how this goal may encourage Big Tech corporations to strengthen multi-stakeholder partnerships that promote effective public-private and civil society partnerships and the meaningful co-presence of non-market and market values. In doing so, the chapter proposes an analysis of the sociological notion of "social license to operate" (SLO) elaborated in the mining and extractive industry literature and introduces it into the discourse on sustainable digital business models and responsible management of risks in the digital age. This serves to explore how such a social license can be adopted as a practice by digital business models to foster trust, collaboration and coordination among different actors - AI researchers and initiatives, institutions and civil society at large - for the support of SDGs interrelated targets and goals
Come scrivere la storia utilizzando i papiri secondo Roger S. Bagnall: la volpe, il riccio e le quattro dracme del contadino egiziano
No full textNel presentare la traduzione italiana del volume di Roger Bagnall, "Reading Papyri, writing History", l'articolo evidenzia il contributo storiografico dei papiri
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