Search results for "Senso"
showing 10 items of 4750 documents
Manipulating Light with Tunable Nanoantennas and Metasurfaces
2022
The extensive progress in nanofabrication techniques enabled innovative methods for molding light at the nanoscale. Subwavelength structured optical elements and, in general, metasurfaces and metamaterials achieved promising results in several research areas, such as holography, microscopy, sensing and nonlinear optics. Still, a demanding challenge is represented by the development of innovative devices with reconfigurable optical properties. Here, we review recent achievements in the field of tunable metasurface. After a brief general introduction about metasurfaces, we will discuss two different mechanisms to implement tunable properties of optical elements at the nanoscale. In particular…
Solution processed micro- and nano-arrays for multiplexed biosensing
2012
Development and implementation of a selective change-driven vision sensor for high speed movement analysis
2013
Un sistema de vision artificial esta compuesto, en su forma más basica, por un sensor VLSI, habitualmente fabricado en tecnología CMOS o CCD, y una etapa de procesado. En la gran mayoría de los sistemas de visión artificial implementados hoy en día la etapa sensora del sistema consiste en un sensor de imágenes tradicional. Este tipo de sensores trabajan bajo unos principios muy simples y conocidos: el nivel de iluminación del entorno es muestreado y transmitido a intervalos de tiempo regulares; y todos los píxeles de la matriz, sin excepción, son transmitidos secuencialmente y en orden. Esto es así aunque no se hayan producido cambios en la escena bajo observación. Esto implica que una gran…
Diseño, caracterización y propuestas de aplicación de sensores GMR (Giant MagnetoResistance) en medida de corriente a nivel de circuito integrado
2013
El efecto MagnetoRresistivo Gigante (GMR) es un mecanismo de acoplo magnético que se da en estructuras multicapa con espesores de nanómetros. En estos dispositivos, la resistencia varía con la aplicación de un campo magnético externo en unos niveles que permiten su uso como sensores, incluso a temperatura ambiente. Es tal la utilidad de los dispositivos basados en GMR, que sus descubridores fueron galardonados con el Premio Nobel de Física en 2007. La constante evolución que está experimentando esta tecnología está abriendo nuevos campos de aplicación, principalmente relacionados con la medida de pequeños campos magnéticos mediante micro y nano-dispositivos, como la biotecnología y la micro…
Metodi Chemiometrici per la sintesi razionale di Nanowires di ZnO per l'elettronica su Circuiti
2019
I nanowires di ZnO (ZnO NWs) rappresentano uno dei materiali 1D di maggiore interesse per lo sviluppo di sensori e/o trasduttori, date le loro ot time proprietà piezoelettriche e semiconduttive1 . Tuttavia, la sintesi chimica di ZnO NWs ad alto “aspect ratio” da soluzione acquosa a basse temperature stemi elettronici completi. Recentemente abbiamo sviluppato2 un metodo per il controllo razionale della sintesi di nanowires di ZnO (Figura 1) su supporti conduttivi in rame per la realizzazione di nanotrasduttori...
How amniotic fluid shapes early odor-guided responses to colostrum and milk (and more)
2016
Revue; Among the multiple transitions that characterize mammalian development, birth certainly is the most abrupt and spectacular. It is also the most challenging for newborns when one considers their high mortality rates in any mammalian species. Although evolution has selected newborn organisms that possess the physiological and behavioral keys leading to adapt to this harsh psychobiological challenge, their capabilities cannot be considered separately from the maternal organism and the environment she creates. Mammalian females provide indeed passive (physiological) and/or active (behavioral) assistance to complement and boost their offspring’s capacities. One notable strategy of mammali…
Il consenso del minore al trattamento medico in prospettiva comparatistica: un nuovo soggetto di diritto?
2020
The research analyzes in a comparative perspective the new role recognized to the minor thanks to the juridical relevance of his will with particular reference to some recent jurisprudential rulings both of the Suprême Court, in the English system, and of the Court of Cassation, in the Italian law. In this new perspective, the minor is increasingly considered the centre of imputation of rights and duties and less perceived as a weak subject, whose protection is traditionally entrusted to parents or, in case of their absence, to other substitute figures. In this new approach, the minor seems to play a new juridical subjectivity and his will must be increasingly taken into consideration as i…
Vaccinazione anti COVID-19 e consenso del minore ultrasedicenne
2022
The essays focuses the issue of minor’s informed consent in connection with COVID-19 vaccination in English and Italian legal systems. The starting point in the English legal system is the Gillick competence criterion, in accordance with a well-known on minor’s informed consent, in order to verify the ability of the minor regarding the choice to undergo COVID-19 vaccination. This point of view emerged from English case law, in particular from the UK Supreme Court ruling of 26 September 2019 which strengthened the decision-making autonomy of the minor in balancing with parental authority configuring his possible compression as a deprivation of personal freedom, falling within the scope of th…
Viskositeetin mittaaminen pietsosähköherätteisellä värähtelijällä
2010
Tässä pro gradu -tutkielmassa käsitellään nesteen viskositeetin ominaisuuksia ja erityisesti pietsosähköherätteisiin komponentteihin perustuvia tapoja mitata nesteen viskositeettia sähköisesti. Motivaationa tutkielman tekoon oli löytää menetelmä, jolla voidaan mitata nesteiden viskositeettia luotettavasti. Nesteiden viskositeetti aiheuttaa värähtelijöihin sähköisen vastuksen, jolloin taajuuden, impedanssin ja vaihekulman resonanssiarvoja tarkastelemalla voidaan viskositeettia mitata. Teoriaosuudessa keskityttiin viskositeetin ominaisuuksien lisäksi suorakaiteen muotoisen palkin, CMBP, värähtelydynamiikkaan värähtelevä pallo -mallin ja simulaatiotulosten avulla. Kokeellisessa osiossa tutkitt…
Coppie miste in Italia e in Spagna. Uno studio sui fattori che favoriscono il senso di comunità dei partner stranieri
2013
Lo scopo del presente contributo è stato quello di analizzare come l’identificazione etnica (ingroup ed outgroup) e la discriminazione percepita (come straniero o come partner di coppia mista) siano legati al senso di comunità (SdC) dei partner stranieri delle famiglie interculturali residenti in Spagna e in Italia. I risultati mostrano che in entrambi i gruppi l’identificazione con il proprio gruppo etnico-culturale non è associata al SdC. Inoltre, l’aumento della discriminazione percepita come coppia mista porta ad una diminuzione del senso di comunità e della soddisfazione di vita. The aim of this paper was to analyze how ethnic identification (ingroup and outgroup) and perceived discrim…