Interação do complexo luminescente [Eu(tta)3] com sílica mesoporosa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Foto e eletroluminescência de complexos de samário, európio e gadolínio trivalentes com a beta-dicetona tta e o fosfinóxido quelante dppmo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Den flygande maran : En studie om åtta narkotikabrukande kvinnor i Stockholm

Between April 1997 and November 1999, I followed eight socially excluded female drug users in an attempt to describe their lives and living conditions. The study employs an ethnographic approach with the focus being directed at the specific woman and her life in relation to the social context where this life is lived. The study’s objective has been to describe the lives and living conditions of the eight drug-using women, as well as the extent of the opportunities available to them, as being determined by mechanisms of social exclusion. Their lives are understood on the basis of a feminist and social constructionist perspective where perceptions of ‘the drug-abusing woman’ are regarded as the result of constructions of gender and deviance. The theoretical perspectives proceeds from the idea that one is not born a woman but rather becomes one. The fundamental idea is that women become women by means of processes of femininisation, in the context of which certain ways of interpreting and presenting oneself as a woman are regarded as good and others as bad. Our images of ‘the female drug addict’ are based on how we define and interpret deviance and on the cultural and social thought and behaviour patterns we ascribe to people on the basis of bodily differences. It is images of ‘the good woman’ that defines what we regard as characteristic of ‘the bad woman’ and vice versa. The findings are organised into three main topics: femininity, living conditions and social control. The main findings are: The women described themselves as women by relating to normative messages about how women “are and should be”, and their drug use constituted a means of coping with life from their social position. Their life revolved to a large extent around money via a constant struggle to find enough to cover the rent, food and other basic necessities. And finally, how the women’s relations to societal institutions were formed by their social position as ‘female drug addicts’ and how the asymmetry of these relations produced certain fixed patterns of action for the parties involved.

Coordination as a Service (CaaS) in the Cloud

Nel primo capitolo si è studiata la nuova tecnologia del Cloud Computing, fornendo una semplice analisi di tutte le caratteristiche principali, gli attori coinvolti e i relativi metodi di distribuzione e servizi offerti. Nel secondo capitolo si è introdotta la nozione di coordination as a service, discutendone le relative astrazioni che compongono l'architettura logica. Successivamente si è preso in considerazione il modello di coordinazione TuCSoN definendo cosa si intende per nodo, agente, centro di tuple e agent coordination context ed è stato analizzato il relativo linguaggio di coordinazione attraverso il quale essi interagiscono. Nel terzo capitolo sono state riviste ed estese le nozioni di TuCSoN, precedentemente acquisite, nell'ambito del Cloud Computing ed è stato fornito un modello astratto ed una possibile architettura di TuCSoN in the Cloud. Sono stati analizzati anche gli aspetti di un possibile servizio di tale genere nello scenario di servizio pay-per-use. Infine nel quarto ed ultimo capitolo si è sviluppato un caso di studio in cui si è implementata un'interfaccia per l'attuale CLI di TuCSoN sottoforma di applet, che è stata poi inserita nel Cloud attraverso la piattaforma PaaS Cloudify.