Search results for "Egret"
showing 10 items of 64 documents
Segreto Professionale e diritto alla privacy
2011
OBIETTIVI DEL CAPITOLO • Definire i concetti di “segreto professionale” e “diritto alla privacy” • Esaminare le norme del Codice deontologico e le norme giuridiche di riferimento • Acquisire la consapevolezza del valore etico della riservatezza nella condotta sanitaria • Fornire una Scheda sinottica di consultazione rapida
La mafia non ha vinto. O forse sì?
2015
Il tema della cosiddetta trattativa Stato-mafia - avviata nel periodo a cavallo tra la strage di Capaci (23 maggio 1992) e la strage di via D'Amelio (19 luglio 1992) - suscita l’interesse dello studioso di scienze sociali sotto più punti di vista. Sia sotto il duplice profilo della ricostruzione giudiziaria di specifiche vicende storico-politiche e della connessa possibilità di individuare ipotesi di reato ben configurabili in chiave tecnico-giuridica. Sia nel riproporre il problema del rapporto tra prospettiva storiografica, da un lato e prospettiva giudiziaria, dall’altro. Infine, non è da trascurare l’intreccio tra l’approccio giuridico e la dimensione storica con la dimensione etico-pol…
Dynamic Regret Analysis for Online Tracking of Time-varying Structural Equation Model Topologies
2020
Identifying dependencies among variables in a complex system is an important problem in network science. Structural equation models (SEM) have been used widely in many fields for topology inference, because they are tractable and incorporate exogenous influences in the model. Topology identification based on static SEM is useful in stationary environments; however, in many applications a time-varying underlying topology is sought. This paper presents an online algorithm to track sparse time-varying topologies in dynamic environments and most importantly, performs a detailed analysis on the performance guarantees. The tracking capability is characterized in terms of a bound on the dynamic re…
Online Topology Identification from Vector Autoregressive Time Series
2019
Causality graphs are routinely estimated in social sciences, natural sciences, and engineering due to their capacity to efficiently represent the spatiotemporal structure of multivariate data sets in a format amenable for human interpretation, forecasting, and anomaly detection. A popular approach to mathematically formalize causality is based on vector autoregressive (VAR) models and constitutes an alternative to the well-known, yet usually intractable, Granger causality. Relying on such a VAR causality notion, this paper develops two algorithms with complementary benefits to track time-varying causality graphs in an online fashion. Their constant complexity per update also renders these a…
Regret appraisals, age, and subjective well-being
2003
This study examined whether regrets are associated with age and subjective well-being in a sample of 176 participants ranging in age 19 to 82 years. Participants were asked to name unattained goals or events which they currently regret, and appraise these along a number of dimensions such as changeableness and consequences. The results showed that those who appraised their regret-related goals or events as having an impact on their present lives, reported a lower level of life satisfaction and more physical symptoms than those who appraised their regrets as having less consequence. There were also age differences in the regret appraisals. The older adults evaluated their regret-related goal…
Die Qual der Wahl: Die Bedeutung des Regret bei Kaufentscheidungen
2003
Regret results from comparing the outcome of a chosen alternative to the outcome of a foregone alternative. Research shows that this emotion is highly relevant for consumer behavior and decision making, but in consumer research, only a few studies deal with regret. Most of these studies do not measure regret explicitly. And none of these studies include the antecedents of regret. They only examine the consequences of regret on consumer behavior, such as satisfaction. In contrast, the antecedents of regret, but not the consequences, has been a topic of interest in social psychology. Our research indicates that it is fruitful to analyze the antecedents of regret and its consequences together.…
Approachability in Population Games
2014
This paper reframes approachability theory within the context of population games. Thus, whilst one player aims at driving her average payoff to a predefined set, her opponent is not malevolent but rather extracted randomly from a population of individuals with given distribution on actions. First, convergence conditions are revisited based on the common prior on the population distribution, and we define the notion of \emph{1st-moment approachability}. Second, we develop a model of two coupled partial differential equations (PDEs) in the spirit of mean-field game theory: one describing the best-response of every player given the population distribution (this is a \emph{Hamilton-Jacobi-Bell…
The component helminth community in six sympatric species of Ardeidae.
2005
We studied the helminth communities in 6 sympatric species of Ardeidae (Ixobrychus minutus (Linnaeus, 1766), Nycticorax nycticorax (Linnaeus, 1758), Bubulcus ibis (Linnaeus, 1758), Egretta garzetta (Linnaeus, 1766), Ardea cinerea (Linnaeus, 1758), and Ardea purpurea (Linnaeus, 1766)) from "La Albufera de Valencia," Spain. The survey revealed 13 species of helminth parasites: 5 digeneans, 2 cestodes, and 6 nematodes. The component helminth communities of the Ardeidae examined are depauperate and conform to the pattern typically found in isolationist communities, probably because of their high trophic dependence on a few prey species. Evenness was positively correlated with richness and abund…