Search results for "Fiducia"
showing 10 items of 82 documents
Diseguaglianza e capitale sociale nel Mezzogiorno
2013
La letteratura sul capitale sociale ha molto insistito sulla minor dotazione delle regioni meridionali del capitale sociale come bene pubblico documentando questo dato attraverso numerosi indicatori e contribuendo così a leggere con lenti nuove i divari territoriali italiani. Per capitale sociale pubblico si deve intendere la propensione ad agire nel rispetto di norme di reciprocità e senso di obbligazione allargati alle relazioni impersonali, la cui condizione è un diffuso sentimento di fiducia verso gli estranei. È questa forma specifica di capitale sociale che è deficitaria e che, d'altra parte, viene indicata come strategica per il benessere di una società e per le sue possibilità di sv…
Fiducia, Partecipazione a reti e performance economica
2014
Nell'ambito di una ricerca originale su un campione rappresentativo di imprese operanti in un numero selezionato di settori, è stato analizzato il ruolo della fiducia interpersonale e della fiducia istituzionale nel determinare una maggiore o minore propensione a collaborare; inoltre è stata approfondita la relazione fra partecipazione a reti (formali e informali) e performance economica, distinguendo anche il caso in cui le reti sono il risultato di legami forti di tipo parentale o amicale
Automatic Calibration of an Industrial RGB-D Camera Network Using Retroreflective Fiducial Markers
2019
This paper describes a non-invasive, automatic, and robust method for calibrating a scalable RGB-D sensor network based on retroreflective ArUco markers and the iterative closest point (ICP) scheme. We demonstrate the system by calibrating a sensor network comprised of six sensor nodes positioned in a relatively large industrial robot cell with an approximate size of 10 m × 10 m × 4 m . Here, the automatic calibration achieved an average Euclidean error of 3 c m at distances up to 9.45 m . To achieve robustness, we apply several innovative techniques: Firstly, we mitigate the ambiguity problem that occurs when detecting a marker at long range or low resolution by comparing the…
A Novel Marking Reader for Progressive Addition Lenses Based on Gabor Holography
2016
PURPOSE Progressive addition lenses (PALs) are marked with permanent engraved marks (PEMs) at standardized locations. Permanent engraved marks are very useful through the manufacturing and mounting processes, act as locator marks to re-ink the removable marks, and contain useful information about the PAL. However, PEMs are often faint and weak, obscured by scratches, partially occluded, and difficult to recognize on tinted lenses or with antireflection or scratch-resistant coatings. The aim of this article is to present a new generation of portable marking reader based on an extremely simplified concept for visualization and identification of PEMs in PALs. METHODS Permanent engraved marks o…
Dynamic and static computer-guided surgery using the double-factor technique for completely edentulous patients: A dental technique.
2021
A novel computer-assisted surgery (CAS) technique that merges dynamic and static CAS approaches to treat completely edentulous patients with dental implants is described. Radiographic and surgical stents are designed with specific fiducial markers that are recognized by the static and dynamic CAS software program. During the surgical procedure, implants are placed following the static surgical guide and the indications from the dynamic navigation system. This technique combines the advantages of static and dynamic CAS approaches to allow accurate and predictable minimally invasive implant placement.
Alignment of cone beam computed tomography data using intra-oral fiducial markers.
2009
This article illustrates a new method to align and merge two partially overlapping volumes each of them generated by cone beam computed tomography (CBCT). The aggregate volume covers a larger area of investigation and is determined by localizing one fixed LEGO brick in both of the primal volumes. Based on the LEGO brick an approximate registration of the volumes is determined. Afterwards we improve the transformation by minimizing the difference in overlapping space. In this paper we present a method which automates these two steps and provides an aligned volume.
Inference for the interclass correlation in familial data using small sample asymptotics
2012
Inference on the parent-offspring correlation coefficient is an important problem in the analysis of familial data, and point estimates and likelihood based inference are available in the literature. In this work, corrections for the signed log-likelihood ratio test statistics are proposed, based on small sample asymptotics, in order to achieve accurate small sample performance. The corrected statistic can be used for hypothesis testing as well as for interval estimation.
Cryptocurrency Perception Within Countries: A Comparative Analysis
2020
Purpose: The paper explores the differences between countries concerning perception and use of traditional and virtual money. We try to answer the question who uses virtual money for investment and building assets and who uses it just for Internet payments. The background of the analysis are significant changes that have taken place in the virtual money market in recent years in relation to changes in the global financial market. Design/methodology/approach: A pilot study was conducted in Poland, the Russian Federation, and China, which is supposed to be an introduction to the bigger and wider survey. It was conducted within December 2019 and January 2020 with 81 surveyed persons. These wer…
Earth's Surface Displacements from the GPS Time Series
2015
The GPS observations of both Latvian permanent GNSS networks - EUPOS®-Riga and LatPos, have been collected for a period of 8 years - from 2007 to 2014. Local surface displacements have been derived from the obtained coordinate time series eliminating different impact sources. The Bernese software is used for data processing. The EUREF Permanent Network (EPN) stations in the surroundings of Latvia are selected as fiducial stations. The results have shown a positive tendency of vertical displacements in the western part of Latvia - station heights are increasing, and negative velocities are observed in the central and eastern parts. Station vertical velocities are ranging in diapason of 4 mm/…
Fiducia verso persone e istituzioni: evidenze da una survey sul capitale civico degli studenti
2017
Trust in people and institutions: evidence from a survey on the civic capital of students Objectives: According to economic theory, civic capital is the result of a process of social investment through vertical transmission channels, internal to the family, and horizontal socialization, among peers. The reference context, such as the neighbourhood, plays an important role influencing both of these channels. This paper presents some initial evidence obtained from a statistical survey conducted on students of secondary high schools of the city of Palermo with the aim of measuring the basic dimensions that contribute to the formation of the civic and human capital. In particular, the focus is …