Nastassja Cipriani

Università degli Studi di Torino | UNITO · Dipartimento di Culture

In this work I provide a detailed description of Sandra Harding’s feminist standpoint theory, which represents one of the three traditional approaches to feminist epistemology. I start by presenting the two main theses of the theory: the situated knowledge thesis and the thesis of epistemic privilege. In order to do that I extensively talk about th...

Las dificultades que las mujeres encuentran para acceder, permanecer y ascender en la academia, especialmente en las disciplinas científicas y tecnológicas, no pueden ser explicadas mediante un solo marco conceptual, antes bien al contrario, hace falta utilizar tres marcos conceptuales distintos: el individual, que permite centrar el análisis en có...

Este trabajo plantea y aspira a contestar las siguientes preguntas múltiples: ¿cuáles son los mecanismos que contribuyen a perpetuar, y los que podrían ayudar a modificar, la discriminación de las mujeres en el mundo de la investigación científica?, ¿cuáles son las medidas adecuadas para poder aumentar, equilibrando, el número de mujeres en el camp...

A bstract New singularity theorems are derived for generic warped-product spacetimes of any dimension. The main purpose is to analyze the stability of (compact or large) extra dimensions against dynamical perturbations. To that end, the base of the warped product is assumed to be our visible 4-dimensional world, while the extra dimensions define th...

New singularity theorems are derived for generic warped-product spacetimes of any dimension. The main purpose is to analyze the stability of (compact or large) extra dimensions against dynamical perturbations. To that end, the base of the warped product is assumed to be our visible 4-dimensional world, while the extra dimensions define the fibers,...

We give a characterization theorem for umbilical spacelike submanifolds of arbitrary di- mension and co-dimension immersed in a semi-Riemannian manifold. Letting the co- dimension arbitrary implies that the submanifold may be umbilical with respect to some subset of normal directions. This leads to the definition of umbilical space and to the study...

Given a semi-Riemannian manifold, we give necessary and sufficient conditions for a Riemannian submanifold of arbitrary co-dimension to be umbilical along normal directions. We do that by using the so-called \emph{total shear tensor}, i.e., the trace-free part of the second fundamental form. We define the \emph{shear space} and the \emph{umbilical...

For Riemannian submanifolds of a semi-Riemannian manifold, we introduce the concepts of \emph{total shear tensor} and \emph{shear operators} as the trace-free part of the corresponding second fundamental form and shape operators. The relationship between these quantities and the umbilical properties of the submanifold is shown. Several novel notion...

We give a local characterization of codimension two submanifolds which are marginally trapped in Robertson-Walker spaces, in terms of an algebraic equation to be satisfied by the height function. We prove the existence of a large number of local solutions. We refine the description in the case of curves with null acceleration in three-dimensional s...