Search results for "processi"
showing 10 items of 9638 documents
Giovani e musica: verso un'estetica sociale della musica
2007
In questo contributo si intende proporre una prima riflessione circa una pista di ricerca volta a definire i tratti teorici ed empirici di un’estetica sociale della musica. Si mira cioè a rintracciare e ricostruire una fenomenologia dei vissuti musicali a partire non tanto dalla domanda se e come la musica (intesa come significato e come testo) “esprima” o “rappresenti” il reale, quanto piuttosto dall’intento di accertare (attraverso una metodologia di tipo etnografico ed etnometodologico) se e come la musica possa essa stessa produrre la realtà, determinando certe forme e manifestazioni di azione sociale nel quotidiano. Ciò appare particolarmente significativo in un’epoca postmoderna e glo…
Sing and Measure: Sound as Voice as Quanta
2022
The universal concept of a “music of the spheres” traverses the history of philosophy, science and art, from Pythagoras to Kepler and beyond. In modern times, a sphere in three dimensions—the Bloch sphere—is used to illustrate the state of a qubit, the basic unit of quantum information. On the same spherical surface, the fundamental components of voice production can be located, so that any utterance can be seen as the evolution of a unit two-dimensional vector having complex coefficients. Indeed, any sound can be analyzed and decomposed into overlapping sinusoidal components, broadband noises, and impulsive transients, which in turn can be associated to fundamental means of vocal sound pro…
Relationship between volume and energy of vector fields
2001
Abstract A unified study of energy and volume functionals is presented here by determining the critical points of a functional that extends simultaneously energy and volume and that is defined on the product of the manifold of smooth maps C∞(M,N) times the manifold M of riemannian metrics on M. The restriction of this functional to different submanifolds of the space of vector fields X (M)× M is also considered, and used to study several functionals generalizing volume and energy or total bending of vector fields
Palermo
2021
Il capitolo analizza la distribuzione del disagio sociale nelle aree suburbane della città e si concentra sulla relazione fra disagio sociale e comportamento elettorale.
Webcam based display calibration
2012
International audience; We present an automatic method for measuring the tone response curve of display devices based on visual methods, where the eye is replaced by an end-user, uncalibrated camera, such as a webcam. Our approach compares a series of halftoned patches of known covering ratio with a continuous series of tone patches for each ratio. Both patches are shot by a camera that is used as a virtual eye to evaluate the luminance difference. By an iterative process, the continuous tone value is adjusted while compared with the perceived level of the halftoned patch. When the camera does not see any difference between the patches or a minimal difference, the luminance level of the con…
Deformation Quantization in White Noise Analysis
2007
We define and present an example of a deformation quantization product on a Hida space of test functions endowed with a Wick product.
Gender and Work-life balance: a contest analysis on nursey schools in Palermo
2018
This paper reflects on the gender inequalities and their influence in the access to labor market and, on the other one, to reproductive process. Maternity and work often arise as choices excluding one another due for the inadequacy of care services. The essay reviews some laws of the last years for encourage the work-life balance and analyzes the presence of the services for children in Palermo. The "case study" of the municipality of Palermo shows a general lack of services and a progressive reduction of public nurseries and kindergarten, despite the economic investments of the last decades at institutional level. It points out how many obstacles persist that discourage female participatio…
Characterization of three-dimensional microstructure of composite materials by X-ray tomography
2016
Analysis methods for X-ray microtomographic images of short fibre composite materials were developed. The methods enable estimation of microstructural properties of the material, e.g., aspect ratio and orientation of fibres. Being based on X-ray microtomography and image analysis, the methods are nondestructive and do not require user intervention. In particular, a method for determination of the aspect ratio of fibres was first developed. The method contains an assumption about similarity of the shape of the fibres. The assumption was relaxed in an improved method that can estimate cross-sectional properties of fibres, too, e.g., cross-sectional area. Additionally, the effect of finite ima…
The Relationship between Knowledge Characteristics’ Fit and Job Satisfaction and Job Performance: The Mediating Role of Work Engagement
2020
Knowledge workers are highly valued by organizations, but there is a lack of evidence about the role of work engagement in the satisfaction and performance of these workers. Harmonization and Person&ndash
Compression and load balancing for efficient sparse matrix-vector product on multicore processors and graphics processing units
2021
We contribute to the optimization of the sparse matrix-vector product by introducing a variant of the coordinate sparse matrix format that balances the workload distribution and compresses both the indexing arrays and the numerical information. Our approach is multi-platform, in the sense that the realizations for (general-purpose) multicore processors as well as graphics accelerators (GPUs) are built upon common principles, but differ in the implementation details, which are adapted to avoid thread divergence in the GPU case or maximize compression element-wise (i.e., for each matrix entry) for multicore architectures. Our evaluation on the two last generations of NVIDIA GPUs as well as In…