Search results for "lien"

Salient Pixels and Dimensionality Reduction for Display of Multi/Hyperspectral Images

2012

International audience; Dimensionality Reduction (DR) of spectral images is a common approach to different purposes such as visualization, noise removal or compression. Most methods such as PCA or band selection use either the entire population of pixels or a uniformly sampled subset in order to compute a projection matrix. By doing so, spatial information is not accurately handled and all the objects contained in the scene are given the same emphasis. Nonetheless, it is possible to focus the DR on the separation of specific Objects of Interest (OoI), simply by neglecting all the others. In PCA for instance, instead of using the variance of the scene in each spectral channel, we show that i…

The colour of light for urban spaces

2013

Light in urban spaces was first introduced to prevent crimes against both people and properties and, while there is no study that confirms crimes' reduction in lit spaces, it is undeniable that people feel safer in lit urban spaces. Over the years it became evident that light can also improve the liveability of cities and enhance their characteristics, therefore in the last years a growing attention was paid to urban lighting design taking into account the environmental impact and energy saving requirements too. The will to use the lighting design project to improve the liveability of historical centres it’s clear: the city during the night is no more conceived like a sum of lit architectur…

Salient Spin Images: A Descriptor for 3D Object Recognition

2018

In the last decades a wide range of algorithms have been devoted to recognize 3D free-from objects under real conditions such as occlusions, clutters, rotation, scale and translation. Spin image is one of these algorithms known to be robust to rotation, translation, occlusions up to 70% and clutters up to 60%, but still suffer from scaling, resolution changes and it is time consuming. In this paper we present a novel approach based on spin images, called salient spin images (SSI). This method enhances spin images algorithm based on its limits. Particularly, it decreases significantly the complexity of the algorithm using DoG detector, it shows a higher performance due to the relevant locali…

Conflict and segregation in networks: An experiment on the interplay between individual preferences and social influence

2016

We examine the interplay between a person's individual preference and the social influence others exert. We provide a model of network relationships with conflicting preferences, where individuals are better off coordinating with those around them, but where not all have a preference for the same action. We test our model in an experiment, varying the level of conflicting preferences between individuals. Our findings suggest that preferences are more salient than social influence, under conflicting preferences: subjects relate mainly with others who have the same preferences. This leads to two undesirable outcomes: network segregation and social inefficiency. The same force that helps peopl…

Le specie alloctone invasive in Sicilia: caratterizzazione del fenomeno, strategie di colonizzazione e possibili strategie di contrasto

2014

Comparing the Antileishmanial Activity of Gold(I) and Gold(III) Compounds in L. amazonensis and L. braziliensis in Vitro

2020

Abstract Abstract: A series of mononuclear coordination or organometallic AuI/AuIII complexes (1–9) have been comparatively studied in vitro for their antileishmanial activity against promastigotes and amastigotes, the clinically relevant parasite form, of Leishmania amazonensis and Leishmania braziliensis. One of the cationic AuI bis‐N‐heterocyclic carbenes (3) has low EC50 values (ca. 4 μM) in promastigotes cells and no toxicity in host macrophages. Together with two other AuIII complexes (6 and 7), the compound is also extremely effective in intracellular amastigotes from L. amazonensis. Initial mechanistic studies include an evaluation of the gold complexes′ effect on L. amazonensis’ pl…

Hydroxylation and conjugation of phenol by the frog Rana temporaria.

1985

1. Frogs injected with phenol excrete 67–95% of dose in 15h; 32–87% of dose are metabolites.2. Metabolites identified were phenyl sulphate (15–44% of dose), phenyl glucuronide (10–25% of dose), catechol sulphate (up to 7% of dose), quinol sulphate (1–25% of dose), resorcinol and catechol (traces).

Mario Sbriccoli, Die buergerliche Strafrechtswissenschaft, Theorien und Ideologien des Strafrechts in vereinigten Italien, 2014,

2015

La recensione riguarda l'edizione tedesca di un importante contributo di Mario Sbriccoli sulla storia del diritto penale del 18° secolo. In particolare, se ne mette in rilievo l'importanza nei rapporti fra la scienza penale tedesca e italiana. Die Buchbesprechung betrifft die deutsche Übersetzung des wichtigen Beitrags von Mario Sbriccoli ueber die Geschtichte der italienischen Strafrechtswissenschaft in XVIII Jahrundert. Es werd insbesondere die Bedutung dieses Buches fuer die Beziehungen zwischen die italienische und die deutsche Strafrechtswissenschaft.

Territorial development models: A new strategic vision to analyze the relationship between the environment, public goods and geographical indications

2021

Abstract Geographical indications (GIs) are increasingly seen as a tool to support sustainable local development. This study focuses on how geographical indications can contribute to a territorial public system, and how this can be threatened by several market failures. Starting from the economic literature on public goods, this document highlights how geographical indications, and their legal protection, can guarantee a sustainable development model. This article aims to illustrate and develop new economic arguments that support a more comprehensive political approach to the contribution that Geographical indications make to sustainable development. The research is focused in Sicily on the…

Groups are not always the same

1993

The idea of supporting group meetings at the same time and at the same place by computer raises the problem of how salient features of group behaviors are understood in meetings. In this paper we take a critical look at several beliefs about group behaviors in research dealing with electronic meeting systems (EMS). The paper argues based on an empirical study that the concept of a small, cohesive business team, so widely held, in all EMS research is not necessarily a valid starting point in thinking of meeting support. In particular, the paper critically evaluates a number of beliefs of user aspects, group features such as composition, structure and protocols, and task characteristics such …