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Patologie rare dell'orecchio
2012
After fifty years of experience, mostly spent in ENT surgery at the University of Palermo, I have pleasure in presenting this Atlas of rare diseases of the ear, including clinical cases observed and documented during this long period from 1958 to 2006. We would prefer to divide all the case studies into three chapters: the outer ear, middle ear and inner ear.
The Emergence of Women as Main Earners in Europe
2014
This paper conducts a cross-sectional empirical research aimed at documenting the emergence of a new family model characterized by women who earn the largest share of their household income. We show that in Europe, couples with women as the main earner have started to represent a non-negligible share of the population and identify the key characteristics of couples in which women are the main earner in comparison to equal-earner couples and to couples in which men are the main earner. We undertake a comparative approach using micro-level data from the European Social Survey on 19 countries and two time periods (2004 and 2010).
Narrare la generatività familiare
2018
L’Autore propone una breve riflessione sulla formazione del sistema emozionale del soggetto; tema pedagogicamente rilevante perché permette di comprendere la prima alfabetizzazione emotiva che avviene in famiglia. Aiuta anche ad esplorare le «matrici transpersonali del sé»; e a pervenire all’intelligenza di un aspetto specifico secondo il quale ogni persona è un erede: grazie alla famiglia infatti ogni soggetto riceve come prima eredità una mente. The author proposes a short reflection on the training of the emotional system of the subject; that is a pedagogically relevant theme because it allows to comprehend the first emotional literacy that happens in family. It also helps to explore the…
Study of Bacillus subtilis spore's : characterication of stuctures implied in its resistance
2013
The bacterial spore is a multilayer microbial form which is extremely resistant to environmental perturbations. This resistance is especially due to its unique structure which is particularly compact and weakly permeable. This work aims to identify and characterize the spore structures involved in these properties. Overall investigation methods, such as NMR and fluorescence anisotropy, have shown that the cortex of Bacillus subtilis spores is modified by temperature for level similar to that of the activation of germination. This will result in changes to the access to the inner membrane. A tool at the spore’s scale, the fluorescence lifetime imaging microscopy (FLIM) in conjunction with th…
Corrigendum: Partial inner product spaces, metric operators and generalized hermiticity
2013
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Partial inner product spaces, metric operators and generalized hermiticity
2013
Motivated by the recent developments of pseudo-hermitian quantum mechanics, we analyze the structure of unbounded metric operators in a Hilbert space. It turns out that such operators generate a canonical lattice of Hilbert spaces, that is, the simplest case of a partial inner product space (PIP space). Next, we introduce several generalizations of the notion of similarity between operators and explore to what extend they preserve spectral properties. Then we apply some of the previous results to operators on a particular PIP space, namely, a scale of Hilbert spaces generated by a metric operator. Finally, we reformulate the notion of pseudo-hermitian operators in the preceding formalism.
A core cochlear phenotype in USH1 mouse mutants implicates fibrous links of the hair bundle in its cohesion, orientation and differential growth
2008
The planar polarity and staircase-like pattern of the hair bundle are essential to the mechanoelectrical transduction function of inner ear sensory cells. Mutations in genes encoding myosin VIIa, harmonin, cadherin 23,protocadherin 15 or sans cause Usher syndrome type I (USH1, characterized by congenital deafness, vestibular dysfunction and retinitis pigmentosa leading to blindness) in humans and hair bundle disorganization in mice. Whether the USH1 proteins are involved in common hair bundle morphogenetic processes is unknown. Here, we show that mouse models for the five USH1 genetic forms share hair bundle morphological defects. Hair bundle fragmentation and misorientation (25-52° mean ki…
Constrained and unconstrained problems in location theory and inner products
1997
In a real normed space X the optimization problem associated to a finite subset and to a family of positive weights with the objective function [UM0001] has some well known properties when X is an ...
Changes in the Three Dimensional Structure of Synaptic Ribbons in the Pineal Gland of the Guinea-Pig Caused by Constant Light
1997
Synaptic bodies (SBs) are dynamic synaptic organelles of afferent synapses of the retina, inner ear, lateral line organ and pineal gland in vertebrates. When investigated in a transmission electron microscope, their electron-dense rod-like, round or irregular profiles are surrounded by electron-lucent vesicles. The three-dimensional structure of pineal SBs is not precisely known. Pineal glands of two guinea-pigs (one kept under an LD cycle of 12:12 h; one kept in constant light for 8 weeks) were investigated. SBs were reconstructed in three dimensions to visualise morphological changes in constant light. Transmission electron microscope micrographs from up to 18 serial sections with a known…
L'ecomuseo del grano e del pane: un percorso progettuale centrato sul design
2018
La festa di S. Giuseppe, oltre che un’importante e sentita ricorrenza religiosa, è a Salemi soprattutto la “festa dei pani”; bellissime realizzazioni di alto artigianato artistico, la cui sapienza si tramanda nelle famiglie e nelle associazioni di donne che per mesi lavorano alla produzione dell’enorme quantità delle piccole e grandi forme di pane, per rivestire le costruzioni votive che accolgono il rito della cena. Nasce quindi l’idea di proporre un “Ecomuseo del grano e del pane” nel Collegio dei Gesuiti, valorizzando e riaprendo al pubblico uno spazio di grande interesse storico-architettonico. Nell’ambito della consolidata collaborazione del Comune di Salemi con il Dipartimento di Arch…