Search results for "USA"
showing 10 items of 3178 documents
Syngeneia e tradizioni coloniali in Sicilia (IG XII, IV, 1, 222, 223; I Magnesia 72).
2010
Si prendono in esame le uniche tre iscrizioni in cui si trovano riferimenti allo sfruttamento del "sentimento" della parentela etnica nei rapporti interstatali tra città siceliote e poleis greche. Si tratta di documenti che attestano la partecipazione rispettivamente di Siracusa alle feste panelleniche in onore di Artemide Leukophryene di Magnesia sul Meandro, in Asia Minore, e di Cos e Camarina alle feste panelleniche in onore di Asclepio a Cos. In tutti e tre i casi, si può constatare che lo sfruttamento dei richiami alla parentela era funzionale soprattutto a dare visibilità a livello internazionale a città siceliote che erano ormai entrate nell'orbita politica di Roma, e a mantenere str…
Neural networks with non-uniform embedding and explicit validation phase to assess Granger causality
2015
A challenging problem when studying a dynamical system is to find the interdependencies among its individual components. Several algorithms have been proposed to detect directed dynamical influences between time series. Two of the most used approaches are a model-free one (transfer entropy) and a model-based one (Granger causality). Several pitfalls are related to the presence or absence of assumptions in modeling the relevant features of the data. We tried to overcome those pitfalls using a neural network approach in which a model is built without any a priori assumptions. In this sense this method can be seen as a bridge between model-free and model-based approaches. The experiments perfo…
Abstract. Towards a Theory of Cognitive Responsibility: Action, Perception and Normativity from Plato to Searle.
2011
The talk articulates the normative commitments allowing us to consider perceptual experience as a form of knowledge - that is, as a form of the human activity situated in the normative space of reason of which we can be held responsible. More specifically, John Searle's characterization of the logical structure of perceptual experiences as causally selfreferential intentional states can be developed into an account of the causal and normative-intentional aspects of experience, the genealogy of which can be traced back to Plato's Theaetetus and Meno. In these dialogues, in fact, a picture of experience as "knowledge" seems to be based on a specific "reasoning about the cause" as the specific…
1993
We may state that the path of development of an organism can play an important role in its immediate realization and also in its possible transformation. This leads to the problem of the existence of a causative link between individual development (ontogeny) and evolutionary history (phylogeny). This problem which has been dealt with by numerous authors, has led to contradictory answers, depending on the direction of the supposed connection: from the evolutionary history to individual development or vice versa, that is, from individual development to the evolutionary history.
A framework to identify primitives that represent usability within Model-Driven Development methods
2014
Context: Nowadays, there are sound methods and tools which implement the Model-Driven Development approach (MDD) satisfactorily. However, MDD approaches focus on representing and generating code that represents functionality, behaviour and persistence, putting the interaction, and more specifically the usability, in a second place. If we aim to include usability features in a system developed with a MDD tool, we need to extend manually the generated code. Objective: This paper tackles how to include functional usability features (usability recommendations strongly related to system functionality) in MDD through conceptual primitives. Method: The approach consists of studying usability guide…
A Proposal for Modelling Usability in a Holistic MDD Method
2014
Holistic methods for Model-Driven Development (MDD) aim to model all the system features in a conceptual model. This conceptual model is the input for a model compiler that can generate software systems by means of automatic transformations. However, in general, MDD methods focus on modelling the structure and functionality of systems, relegating the interaction and usability features to manual implementations at the last steps of the software development process. Some usability features are strongly related to the functionality of the system and their inclusion is not so easy. In order to facilitate the inclusion of functional usability features from the first steps of the development proc…
Developing a formative assessment system for mathematics using mobile technology: A student centred approach
2012
The success of mobile technology for learning tools depends not only on the technical design aspects but also on pedagogical issues. Students' involvement in designing the tools is one of the key factors for their engagement in technology supported learning. Students should be actively involved in developing innovative solutions which are likely to improve their skills as well as their performance. In this study work, the students participated in iterative design processes of a mobile tablet based peer-to-peer assessment system (P2PASS) for mathematics, and in real life deployment on a mathematics course. The paper reports on two major concepts: the user centred design in practice and the p…
Education Students’ Use of Collaborative Writing Tools in Collectively Reflective Essay Papers
2014
Published version of an article in the journal: Journal of Information Technology Education: Research. Also available from the publisher at: http://www.jite.org/documents/Vol13/JITEv13ResearchP091-120Brodahl0463.pdf Open Access Google Docs and EtherPad are Web 2.0 tools providing opportunity for multiple users to work online on the same document consecutively or simultaneously. Over the last few years a number of research papers on the use of these collaborative tools in a teaching and learning environment have been published. This work builds on that of Brodahl, Hadjerrouit, and Hansen (2011) expanding its case study. The theoretical framework is the same as the one underlying Brodahl et a…
Thin Points of Brownian Motion Intersection Local Times
2005
Let \(\ell \) be the projected intersection local time of two independent Brownian paths in \(\mathbb{R}^d \) for d = 2, 3. We determine the lower tail of the random variable \(\ell \)(B(0, 1)), where B(0, 1) is the unit ball. The answer is given in terms of intersection exponents, which are explicitly known in the case of planar Brownian motion. We use this result to obtain the multifractal spectrum, or spectrum of thin points, for the intersection local times.