Search results for "ratifica"

From rural studies to the analysis of localized social spaces

2014

Urban society seems to have penetrated every corner of France, reducing the object of rural sociology and ethnology to nothing. These disciplines are built on a sharp rural/urban split, reserving the canonical vocabulary of sociology, such as the analysis of social class, for urban settings. Rural studies were founded on an ad hoc conceptualization borrowed from anthropology (peasant society, community, village collectivity, village interconnaissance or everyone knowing each other, notables). The radical development of contemporary rural worlds has swept this conception away. But are today’s contemporary rural worlds the exact equivalents of urban worlds? In this paper we defend the idea th…

Torre tecnologica e percorsi dell’acqua: un possibile sistema di fruizione

2020

L'articolo presenta i risultati di un esercizio laboratoriale condotto con gli studenti del Corso di Laurea magistrale LM4 in Ingegneria edile - Architettura. L’idea parte dalla reinterpretazione delle torri piezometriche, utilizzate per mettere in pressione l’acqua proveniente dai canali sotterranei che irrorano la Conca d'Oro di Palermo e la Fossa della Garofala. L’originaria torre tronco piramidale a base quadrata è stata opportunamente modificata nella forma e nella funzione, svuotata all’interno in modo da consentirvi l'accesso. Chi entra potrà sostare, godere dell’ombreggiamento e della frescura prodotta da un sistema di raffrescamento evaporativo collocato nella parte sommitale della…

Determinants of user behaviour and recommendation in social networks

2014

Purpose – The purpose of this paper is to analyse the determinants of social network use behaviour using Theory of Planned Behaviour (TPB) and Uses and Gratifications Theory. Design/methodology/approach – A quantitative study was carried out with data gathered by personal interview using a structured questionnaire. Relationships proposed in the theoretical model were estimated through structural equation models. In total, 811 users of social networks over 14 and residents in Spain were part of the sample. Findings – Results indicate that use attitude and the subjective norm, both TPB variables, directly and significantly influence social network loyalty. Thus, network loyalty can be achiev…

Magnetohydrodynamic study on the effect of the gravity stratification on flux rope ejections

2013

Context. Coronal mass ejections (CMEs) are the most violent phenomenon found on the Sun. One model that explains their occurrence is the flux rope ejection model. A magnetic flux rope is ejected from the solar corona and reaches the interplanetary space where it interacts with the pre-existing magnetic fields and plasma. Both gravity and the stratification of the corona affect the early evolution of the flux rope. Aims. Our aim is to study the role of gravitational stratification on the propagation of CMEs. In particular, we assess how it influences the speed and shape of CMEs and under what conditions the flux rope ejection becomes a CME or when it is quenched. Methods. We ran a set of MHD…

Coronary chronic total occlusions and mortality in patients with ventricular tachyarrhythmias.

2020

Aims This study sought to assess the prognostic impact of coronary chronic total occlusions (CTO) in patients presenting with ventricular tachyarrhythmias on admission. Methods and results A large retrospective registry was used, including all consecutive patients presenting with ventricular tachyarrhythmias on admission and undergoing coronary angiography from 2002 to 2016. Patients with a CTO were compared with all other patients (non-CTO) for prognostic outcomes. Statistics comprised Kaplan-Meier and Cox regression analyses. Within a total of 1,461 consecutive patients included with ventricular tachyarrhythmias on admission, a CTO was present in 20%. At midterm follow-up of 18 months, th…

Definition of tachycardia for risk stratification of pulmonary embolism

2020

Tachycardia is a reliable predictor of adverse outcomes in normotensive patients with acute pulmonary embolism (PE). However, different prognostic relevant heart rate thresholds have been proposed. The aim of the study was to investigate the prognostic performance of different thresholds used for defining tachycardia in normotensive PE patients.We performed a post-hoc analysis of normotensive patients with confirmed PE consecutively included in a single-centre and a multi-centre registry. An adverse outcome was defined as PE-related death, need for mechanical ventilation, cardiopulmonary resuscitation or administration of catecholamines.Of 1567 patients (median age: 72 [IQR, 59-79] years; f…

Predilation, sizing and post-dilation scoring in patients undergoing everolimus-eluting bioresorbable scaffold implantation for prediction of cardiac…

2017

Aims: The aim of the study was to develop a scoring model to evaluate the quality of bioresorbable vascular scaffold (BVS) implantation and determine the model's usefulness in predicting adverse cardiac events. Methods and results: The implantation technique and clinical outcomes of 1,736 lesions treated with BVS were analysed using the GHOST-EU registry. Predilation, scaffold sizing, and post-dilation (PSP) were scored according to the hazard model derived from the weight of these variables. The primary end-point was a one-year device-oriented composite endpoint (DoCE) composed of cardiac death, target vessel myocardial infarction, and clinically driven target lesion revascularisation. Def…

Performance of EU-TIRADS in malignancy risk stratification of thyroid nodules. A meta-analysis

2020

Objective: Several thyroid imaging reporting and data systems (TIRADS) have been proposed to stratify the malignancy risk of thyroid nodule by ultrasound. The TIRADS by the European Thyroid Association, namely EU-TIRADS, was the last one to be published. Design: We conducted a meta-analysis to assess the prevalence of malignancy in each EU-TIRADS class and the performance of EU-TIRADS class 5 vs 2, 3 and 4 in detecting malignant lesions. Methods: Four databases were searched until December 2019. Original articles reporting the performance of EU-TIRADS and adopting histology as reference standard were included. The number of malignant nodules in each class and the number of nodules classifi…

A note on the calibration of the tourists mobility in Sicily and Sardinia

2011

Stratification dépendante du temps dans la modélisation de Cox en tant que méthode de prise en compte d’interventions répétées dans la prise en charg…

2016

International audience; IntroductionLa transfusion de concentrés de globules rouges (CGR) est le traitement symptomatique de l’anémie et contribue à l’oxygénation des tissus au cours de pathologies sévères. Nous menons une recherche sur l’effet des caractéristiques des CGRs sur la survie des patients dans les CHU de Besançon et Dijon : l’étude STeF-BFC. Nous étudions l’effet de la durée de conservation (DC) et du sexe du donneur (SD) des CGR sur la survie à un an de patients de chirurgie cardiovasculaire. Dans ce type d’étude, le nombre de CGR reçus est un facteur de confusion majeur. Il s’agit d’un biais d’indication mais aussi un biais de survivant (il faut avoir survécu jusqu’à la transf…