‘Social Purity’ appears in a part of the French and Anglo-Saxon (Britain and the United States) nineteenth-twentieth century’s feminisms, as a mean for many claims: from the full recognition of ...sexual difference in Hubertine Auclert’s social and ‘differentialist’ republicanism in France to Josephine Butler’s refusal of any purity imposed from above in England, until the absolute turn of the idea of women’s moral superiority and the equal and opposite force to the final exit from ‘the social’ by the American ‘New Womanism’, individualizing and de-feminizing the act of sexual liberation. All this in a continuous play of actions and reactions, sometimes paradoxical, weaving together suffragism and anti-suffragism, contestation of the conjugal complementarity and the never overcome temptations of hetero or self-control.
The essay presents an analysis of most of the approaches to the theme of solidarity between generations. For several decades the time of generations has met the history of ideas. Today, at the ...intersection of conceptual history and general sociology, and of the analysis of cultural processes and social history, a political reflection is taking place about the "political generation" as a paradigm unavoidably characterized by a kind of semantic vagueness. The same reflection is also confronted with the relationship of complicity or conflict between generations characterized by the growing weight acquired by the issue of intergenerational solidarity. This, in turn, is reflected both in the space of life relationships between old, adults and young people, and, in terms of history, among the living, the dead and the unborn. The so-called "non-contemporaneity of contemporary" is imposing its logic, but it requires new forms of understanding and representation of today's global dynamics.
The essay, that is part of a broader research conducted in recent years by the Author on political culture and intellectual world in the French Third Republic, assumes the founding moment of the ...Faculte Libre de Sciences Politiques in 1872 as the keystone of the republicanism between nineteenth and twentieth centuries. It is in fact the moment of maximum effort in the planning some reform models of public education, basic and higher, which will get figures of forward-thinking intellectuals like Emile Boutmy to attempt to create a University at the same time free from State interference, but able to offering to the the same State an elite 'scientifically' trained to politics.
Al centro del saggio una riflessione sull’incontro tra femminismo e ideologia, condotta intorno agli scritti di Michèle Barrett, Judith Butler e Gayatri Chakravorty Spivak, allo scopo di approfondire ...il nesso tra critica femminista, ideologia e processi di soggettivazione sociale. Se è vero che «l’ideologia non si riferisce, come spesso si crede, soltanto alle idee politiche, ma include tutte le nostre “strutture mentali”, le nostre credenze, i concetti e i modi di esprimere i nostri rapporti con il mondo» (Loomba), allora alla riflessione femminista non resta che indagare «la dominante maschile» nel processo di «costruzione ideologica del genere» (Spivak). A essere chiamata in causa è la contrapposizione tra materialità e idealità, reale e immaginario, il tutto nel solco della lezione di Marx, Althusser e Foucault.
Noise-induced phenomena characterise the nonlinear relaxation of nonequilibrium physical systems towards equilibrium states. Often, this relaxation process proceeds through metastable states and the ...noise can give rise to resonant phenomena with an enhancement of lifetime of these states or some coherent state of the condensed matter system considered. In this paper three noise induced phenomena, namely the noise enhanced stability, the stochastic resonant activation and the noise-induced coherence of electron spin, are reviewed in the nonlinear relaxation dynamics of three different systems of condensed matter: (i) a long-overlap Josephson junction (JJ) subject to thermal fluctuations and non-Gaussian, Lévy distributed, noise sources; (ii) a graphene-based Josephson junction subject to thermal fluctuations; (iii) electrons in a n-type GaAs crystal driven by a fluctuating electric field. In the first system, we focus on the switching events from the superconducting metastable state to the resistive state, by solving the perturbed stochastic sine-Gordon equation. Nonmonotonic behaviours of the mean switching time versus the noise intensity, frequency of the external driving, and length of the junction are obtained. Moreover, the influence of the noise induced solitons on the mean switching time behaviour is shown. In the second system, noise induced phenomena are observed, such as noise enhanced stability (NES) and stochastic resonant activation (SRA). In the third system, the spin polarised transport in GaAs is explored in two different scenarios, i.e. in the presence of Gaussian correlated fluctuations or symmetric dichotomous noise. Numerical results indicate an increase of the electron spin lifetime by rising the strength of the random fluctuating component. Furthermore, our findings for the electron spin depolarization time as a function of the noise correlation time point out (i) a non-monotonic behaviour with a maximum in the case of Gaussian correlated fluctuations, (ii) an increase up to a plateau in the case of dichotomous noise. The noise enhances the coherence of the spin relaxation process.
