University of Trento

About: University of Trento is a education organization based out in Trento, Italy. It is known for research contribution in the topics: Population & Context (language use). The organization has 10527 authors who have published 30978 publications receiving 896614 citations. The organization is also known as: Universitá degli Studi di Trento & Universita degli Studi di Trento.

Beta binders for biological interactions

Abstract: This paper presents binders and operators, in the process calculi tradition, to reason about biological interactions. Special binders are added to wrap a process just as membranes enclose some living matter and hence to mimick biological interfaces. A few operators are then added to the pi-calculus kernel to describe the dynamics of those interfaces.

Large scale mechanical metamaterials as seismic shields

Abstract: Earthquakes represent one of the most catastrophic natural events affecting mankind. At present, a universally accepted risk mitigation strategy for seismic events remains to be proposed. Most approaches are based on vibration isolation of structures rather than on the remote shielding of incoming waves. In this work, we propose a novel approach to the problem and discuss the feasibility of a passive isolation strategy for seismic waves based on large-scale mechanical metamaterials, including for the first time numerical analysis of both surface and guided waves, soil dissipation effects, and adopting a full 3D simulations. The study focuses on realistic structures that can be effective in frequency ranges of interest for seismic waves, and optimal design criteria are provided, exploring different metamaterial configurations, combining phononic crystals and locally resonant structures and different ranges of mechanical properties. Dispersion analysis and full-scale 3D transient wave transmission simulations are carried out on finite size systems to assess the seismic wave amplitude attenuation in realistic conditions. Results reveal that both surface and bulk seismic waves can be considerably attenuated, making this strategy viable for the protection of civil structures against seismic risk. The proposed remote shielding approach could open up new perspectives in the field of seismology and in related areas of low-frequency vibration damping or blast protection.

Flash sintering of ceramics

Abstract: Flash sintering is a novel densification technology for ceramics, which allows a dramatic reduction of processing time and temperature. It represents a promising sintering route to reduce economic, energetic and environmental costs associated to firing. Moreover, it allows to develop peculiar and out-of-equilibrium microstructures. The flash process is complex and unusual, including different simultaneous physical and chemical phenomena and their understanding, explanation and implementation require an interdisciplinary approach from physics, to chemistry and engineering. In spite of the intensive work of several researchers, there is still a wide debate as for the predominant mechanisms responsible for flash sintering process. In the present review, the most significant and appealing mechanisms proposed for explaining the “flash” event are analyzed and discussed, with the aim to point out the level of knowledge reached so far and identify, at least, possible shared theories useful to propose future scientific activities and potential technological implementations.

Labour Market Flexibilization and its Consequences in Italy

Abstract: Labor market 'flexibilization' or 'deregulation' is seen by many as a requirement for economic and occupational growth. As one route towards more flexibility, many European countries increased the so-called atypical or non-standard forms of employment while leaving the regulation of existing employment relations largely unchanged. In Italy, this led to a strong segmentation of the labour market. As employment is the only connection to a series of welfare entitlements, this praxis might lead to strong cleavages in the society. In this paper, we investigate the ongoing process of labour market 'flexibilization' and its consequences for individual labour market careers and social inequalities and ask whether the deregulation has fulfilled the expectations attached to it. In detail, we study the entries into the marginal labour market and the consequences for employment careers of these forms of 'new' flexible employment. Empirical findings based on Indagine Longitudinale sulle Famiglie Italiane data cast doubts on the effectiveness of the specific form of market deregulation in Italy and confirm strong long-term implications of atypical employment episodes for career chances.

Automatic description generation from images: a survey of models, datasets, and evaluation measures

Abstract: Automatic description generation from natural images is a challenging problem that has recently received a large amount of interest from the computer vision and natural language processing communities. In this survey, we classify the existing approaches based on how they conceptualize this problem, viz., models that cast description as either generation problem or as a retrieval problem over a visual or multimodal representational space. We provide a detailed review of existing models, highlighting their advantages and disadvantages. Moreover, we give an overview of the benchmark image datasets and the evaluation measures that have been developed to assess the quality of machine-generated image descriptions. Finally we extrapolate future directions in the area of automatic image description generation.