Search results for "teoria"
showing 10 items of 2647 documents
Experimental Study of the Oriented Immobilization of Antibodies on Photonic Sensing Structures by Using Protein A as an Intermediate Layer
2018
[EN] A proper antibody immobilization on a biosensor is a crucial step in order to obtain a high sensitivity to be able to detect low target analyte concentrations. In this paper, we present an experimental study of the immobilization process of antibodies as bioreceptors on a photonic ring resonator sensor. A protein A intermediate layer was created on the sensor surface in order to obtain an oriented immobilization of the antibodies, which enhances the interaction with the target antigens to be detected. The anti-bovine serum albumin (antiBSA)-bovine serum albumin (BSA) pair was used as a model for our study. An opto-fluidic setup was developed in order to flow the different reagents and,…
“Facts Are Grasped by Us in Pictures (PT, 2.1). Remarks on Pictures and Facts in Wittgenstein’s Tractatus
2023
This paper proposes a (re)reading of the famous section in the Tractatus Logico-philosophicus, 2.1: “We picture facts to ourselves” and its relation to the similar section in the Prototractatus, 2.1: “Facts are grasped by us in images”. We reject the dominant solution that interprets the relation between facts and images as an isomorphic relation and propose that instead it is an internal relation: there are no facts that are not perceived through images. In other words: For us, linguistic animals, there is no world independent of language.
Thouless-Valatin Rotational Moment of Inertia from the Linear Response Theory
2017
Spontaneous breaking of continuous symmetries of a nuclear many-body system results in appearance of zero-energy restoration modes. Such modes introduce a non-physical contributions to the physical excitations called spurious Nambu-Goldstone modes. Since they represent a special case of collective motion, they are sources of important information about the Thouless-Valatin inertia. The main purpose of this work is to study the Thouless-Valatin rotational moment of inertia as extracted from the Nambu-Goldstone restoration mode that results from the zero-frequency response to the total angular momentum operator. We examine the role and effects of the pairing correlations on the rotational cha…
Martyrdom in Contemporary Animalist Discourses
2019
Is it possible to use the notion of martyrdom in order to explain the communicative strategies and the semiotic mechanisms of the animalist movement? Is the animal a sort of contemporary martyr? This study aims to apply the notion of martyrdom outside the traditional boundaries of religion and politics, testing it in another relevant socio–cultural phenomenon: the contemporary animalist discourse. This paper analyses texts from animalist advertising, essays and novels promoting animal rights and vegetarianism. The main features of the traditional notion of martyrdom are compared to the semiotic structures of the animalist discourse. The questions of the efficacy of images and that of the ex…
Recovery of Lithium Carbonate from Dilute Li-Rich Brine via Homogenous and Heterogeneous Precipitation
2022
An extensive experimental campaign on Li recovery from relatively dilute LiCl solutions (i.e., Li+ similar to 4000 ppm) is presented to identify the best operating conditions for a Li2CO3 crystallization unit. Lithium is currently mainly produced via solar evaporation, purification, and precipitation from highly concentrated Li brines located in a few world areas. The process requires large surfaces and long times (18-24 months) to concentrate Li` up to 20,000 ppm. The present work investigates two separation routes to extract Li+ from synthetic solutions, mimicking those obtained from low-content Li+ sources through selective Li+ separation and further concentration steps: (i) addition of …
Anthropocène, Sémiotique et Droit de l’Environnement. La remise en cause juridique des non-humains
2023
The Anthropocene is not a time of a crisis of nature, but a time of an epistemic one. That stimulates the semiotics of culture to take up the project of an archaeology of knowledge. In this article, we give some indications of how to deal with this in the discourse of environmental law. We will focus on the turning point of the 1960s and 1970s, which is very significant for environmental law. Based on a corpus including French national law, international law and European regulations, we will start by proposing a semiotic genealogy of natural spaces ; then, we will show how it leads to the reformulation of legal temporalities ; finally, we will end by evoking its repercussions on the actoria…
"L'albero Falcone" e i suoi epigoni. La propagazione vegetale della memoria antimafia
2021
Le stragi di Capaci e via D’Amelio segnano un punto di svolta nel linguaggio con cui i movimenti antimafia costruiscono la memoria pubblica della violenza mafiosa. Uno dei tratti salienti di questa svolta è la proliferazione di luoghi di memoria che ruotano intorno a figure arboree. Il capostipite di questa genealogia è l’albero Falcone, noto come punto di raccolta per le manifestazioni del 23 maggio, la giornata della legalità. Nel corso degli anni ’90, il modello memoriale costruito intorno all’albero si sviluppa e si diffonde, mentre sono sempre già frequenti le piantumazioni di alberi in memoria delle vittime della mafia. L’articolo cerca di esplicitare le forme semiotiche soggiacenti a…
Il lavoro e l'arte della ricerca: Antonino Buttitta
2018
Si tratta della ricostruzione del profilo intellettuale e scientifico di Antonino Buttitta, tra i capiscuola delle discipline demoetnoantropologiche in Italia, al quale si deve una originale declinazione dell'approccio strutturalista nell'analisi dei fatti culturali nell'ambito della semiotica della cultura.
Free Action and Interventionist Theory of Causality
2019
Intendo discutere il rapporto tra la teoria interventista della causalità e l’azione libera. Gli approcci interventisti alla causalità definiscono la causazione sulla base dell’“intervento”. Queste teorie possono essere riduttive, se spiegano le cause in base all’intervento umano come libero intervento umano, oppure non-riduttive, se considerano cause e interventi come due concetti inter-definiti, dove gli interventi sono considerati come esplicitamente non umani. Intendo mostrare che il dilemma tra teorie interventista della causalità di tipo riduttivo e non-riduttivo può essere superato in favore degli approcci riduttivi, con riferimento a ciò che la causazione è in senso antropologico e …
Entorn de l'origen de la teoria sociocultural: la zona de desenrotllament pròxim en la vida de Vigotsky
2015
Aquest treball presenta la Zona de Desenvolupament Pròxim (ZDP) en la vida de Lev Vigostky, com el punt d'inflexió en l'origen de l'explicació sociocultural sobre l'origen dels processos psicològics superiors. La ZDP té la capacitat d'entendre aquest salt qualitatiu, en la vida d'aquest autor, ja que rescata el context social i cultural com a part la pròpia explicació del desenvolupament personal que, en el cas de Vigostky, discorre des de l'estètica a la Psicologia emprant la dialèctica com a mètode. Per tant, el paper instrumental de la dialèctica, una formació profundament humanística i la necessitat una resposta nova al problema de la consciència en un moment conceptual i polític crític…