Search results for " Ari"

Salvatore Di Piazza. 2011. Congetture e approssimazioni. Forme del sapere in Aristotele (Milano-Udine : Mimesis)

2013

Quel est le statut épistémologique d’une discipline qui, quelquefois, n’atteint pas à ses objectifs ? C’est la question que Di Piazza pose dans Congetture e approssimazioni. Elle concerne la rhétorique et, avec elle, toutes les disciplines qui ont un statut épistémologique comparable, à commencer par la médecine. Trois éléments - disons trois piliers - délimitent le chantier de Di Piazza : la rhétorique, la médecine et la philosophie d’Aristote.Le point de départ est la décision de ne pas se ...

Between Atoms and Humours. Lucretius' Didactic Poetry as a Model of Integrated and Bifocal Physiology

2012

Lucretius has often been regarded as one of the fathers of modern science, and also in recent years several studies have explored his influence far beyond a merely literary perspective. In this paper I analyse specifically the importance of the poet's 'eclectic' attitude in physiology from the point of view of his 'Fortleben' in early modern thought. I suggest that the typical eclectic combination of physics and biology, atomism and macroscopy, which the 'De rerum natura' shows in its didactic structure both through its images and even more through its conscious scientific reflection, built an attractive basis for attempts in the modern period at harmonising corpuscularian theories and qual…

In che senso la dialettica può essere non violenta

2010

Ibn Sab'in, Le questioni siciliane. Federico II e l’universo filosofico.

2002

Nonlinear systems solver in floating-point arithmetic using LP reduction

2009

This paper presents a new solver for systems of nonlinear equations. Such systems occur in Geometric Constraint Solving, e.g., when dimensioning parts in CAD-CAM, or when computing the topology of sets defined by nonlinear inequalities. The paper does not consider the problem of decomposing the system and assembling solutions of subsystems. It focuses on the numerical resolution of well-constrained systems. Instead of computing an exponential number of coefficients in the tensorial Bernstein basis, we resort to linear programming for computing range bounds of system equations or domain reductions of system variables. Linear programming is performed on a so called Bernstein polytope: though,…

INTERVAL-BASED TRACING OF STRANGE ATTRACTORS

2006

The method described here relies on interval arithmetic and graph theory to compute guaranteed coverings of strange attractors like Hénon attractor. It copes with infinite intervals, using either a geometric method or a new directed projective interval arithmetic.

Fractional Derivatives in Interval Analysis

2017

In this paper, interval fractional derivatives are presented. We consider uncertainty in both the order and the argument of the fractional operator. The approach proposed takes advantage of the property of Fourier and Laplace transforms with respect to the translation operator, in order to first define integral transform of interval functions. Subsequently, the main interval fractional integrals and derivatives, such as the Riemann–Liouville, Caputo, and Riesz, are defined based on their properties with respect to integral transforms. Moreover, uncertain-but-bounded linear fractional dynamical systems, relevant in modeling fractional viscoelasticity, excited by zero-mean stationary Gaussian…

Le tumulus princier de Vix : premiers résultats de la fouille 2019

2020

National audience

WEIGHTED-AVERAGE LEAST SQUARES (WALS): A SURVEY

2014

Model averaging has become a popular method of estimation, following increasing evidence that model selection and estimation should be treated as one joint procedure. Weighted- average least squares (WALS) is a recent model-average approach, which takes an intermediate position between frequentist and Bayesian methods, allows a credible treatment of ignorance, and is extremely fast to compute. We review the theory of WALS and discuss extensions and applications.

Product and Labour Market Regulations, Production Prices, Wages and Productivity

2016

ACLN; International audience; This study is an attempt to evaluate the effects of product and labour market regulations on industry productivity through their various impacts on changes in production prices and wages. In a first stage, the estimation of a regression equation on an industry*country panel, with controls for country*industry and country*year fixed effects, show that multi-factor productivity is negatively and significantly influenced by both indicators of industrial prices from same industry and weighted average of industrial prices from other industries, and by indicators of country wages weighted by industry labour shares for low and high skilled workers. In a second stage, …