Fractal sets and their applications in medicine

La geometria euclidea risulta spesso inadeguata a descrivere le forme della natura. I Frattali, oggetti interrotti e irregolari, come indica il nome stesso, sono più adatti a rappresentare la forma frastagliata delle linee costiere o altri elementi naturali. Lo strumento necessario per studiare rigorosamente i frattali sono i teoremi riguardanti la misura di Hausdorff, con i quali possono definirsi gli s-sets, dove s è la dimensione di Hausdorff. Se s non è intero, l'insieme in gioco può riconoscersi come frattale e non presenta tangenti e densità in quasi nessun punto. I frattali più classici, come gli insiemi di Cantor, Koch e Sierpinski, presentano anche la proprietà di auto-similarità e la dimensione di similitudine viene a coincidere con quella di Hausdorff. Una tecnica basata sulla dimensione frattale, detta box-counting, interviene in applicazioni bio-mediche e risulta utile per studiare le placche senili di varie specie di mammiferi tra cui l'uomo o anche per distinguere un melanoma maligno da una diversa lesione della cute.

European and Chinese legislation regulating the portrayal of women in television advertising: A comparison

This dissertation has two main purposes. On the one hand, it aims at comparing the gender stereotypes presented in the television commercials in China and in Europe. Considering the cultural, historical and socio-economical differences between these two contexts, it is interesting to examine the gender role models offered and used by the advertising industry in European Union and China in order to see if the gender stereotypes are similar and to evaluate to which extent they reflect, challenge or reinforce the gender roles of the society where they are broadcasted. On the other hand, the objective of this dissertation is to establish the degree of adequateness and effectiveness of the existing regulatory framework through an analysis of the positive and negative aspects of the regulatory acts issued to safeguard a fair representation of genders in the EU Member States and in China.

Italian American women in Helen Barolini's Umbertina

This essay analyzes the story and the culture of Italian American women, in particular how they are treated in the novel "Umbertina" by Helen Barolini. The essay first introduces briefly the causes of the great migration and the conditions of immigrants in the US. Then the focus moves on the analysis of the main themes that belong to the genre of Italian American literature. After having shortly treated the biography of Helen Barolini and a general presentation of her novel Umbertina, the essay goes on with the description of its three Italian American female characters and, in particular, of what it meant to be both immigrants and women, together with all the interior and generational conflicts they had to face in order to accept their new hybrid identity. An analysis of some meaningful metaphorical objects in the novel, such as the tin heart and the bedspread, the metaphor of Persephone and of the threshold conclude the essay. Through the analysis of the story of Umbertina, this essay wants to show how migration can lead to a displacement and the kind of journey people had to undertake in order to overcome the conflicts deriving from their belonging to an in-between culture and to accept their hybrid identity.