Breast cancer is the leading cause of cancer death among women. By the following research we report on a morphological study of 30 cases as seen in mammograms, trying to discriminate among benign and malignant tumors in order to develop new tools investigation in cancer diagnosis. From the contour of each mass, we computed the fractal dimension using box-counting algorithm and for each mammogram texture we computed the lacunarity. We found that the fractal dimension value is not sufficient to differentiate among benign and malignant cases, but it was really effective when it was combined with lacunarity. In conclusion, the results obtained showed that the fractal measure is an important tool for the diagnosis of breast cancer.
The chapter explores whether the educational policies introduced by the Romanian Government during the last twenty years are examples of good practice for other European countries facing the issue of Roma integration. The authors raise the question of whether the voices of Roma intellectual élites, who represent the “products” of those educational policies, are strong enough to drive the Roma minority towards common and sustained efforts for their social integration. What are the cross products of these educational policies? Additionally, they consider the case of Roma students within the University of Oradea in Romania and examine their attitudes towards academic learning, motivational factors, academic self-efficacy, faced difficulties, and potential ways to achieve higher rates of student retention. For a more in-depth analysis of the role and impact of those policies and the possible challenges/difficulties encountered, the authors interviewed several decision makers, such as academic staff, NGO representatives, and current/former Roma students. The chapter concludes with suggested solutions for detected difficulties.
An important aspect encountered in archaeological field consists in the identification of the broken pieces part of an object. A preliminary analysis presupposes the grouping of the articles by material, but this is not enough. A second analysis will be done, this time considering the shape of the frontier of the broken piece. In order to describe the shape of an object's border, the evaluation of some local fractal features is proposed. The algorithms for extracting fractal features were implemented into an original software. The final purpose consists in building a component for a content-based image retrieval (CBIR) which uses a classifier based on fractal properties.
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