Search results for "git"
showing 10 items of 7116 documents
Roadmap on digital holography [Invited]
2021
This Roadmap article on digital holography provides an overview of a vast array of research activities in the field of digital holography. The paper consists of a series of 25 sections from the prominent experts in digital holography presenting various aspects of the field on sensing, 3D imaging and displays, virtual and augmented reality, microscopy, cell identification, tomography, label-free live cell imaging, and other applications. Each section represents the vision of its author to describe the significant progress, potential impact, important developments, and challenging issues in the field of digital holography.
iHERITAGE Project : AR/VR for the enhancement and accessibility of the norman architecture of the Unesco site of Palermo
2023
In the context of conservation and dissemination of cultural heritage, noninvasive technologies for the generation of digital models have produced exponential growth in the quality of the data acquired. The digital contents processed allow the use of architectural contexts that no longer exist or sites that are di cult to access, thanks to the visualisation of high-resolution and immersive products. However, the process from acquisition to visualisation requires optimisation strategies and specific operational choices, depending on the design goals. The study describes some results of a broader research within the iHERITAGE Project funded by the ENI CBC MED Program 2014-2020, critically des…
Single-exposure super-resolved interferometric microscopy by RGB multiplexing in lensless configuration
2016
Abstract Single-Exposure Super-Resolved Interferometric Microscopy (SESRIM) reports on a way to achieve one-dimensional (1-D) superresolved imaging in digital holographic microscopy (DHM) by a single illumination shot and digital recording. SESRIM provides color-coded angular multiplexing of the accessible sample׳s range of spatial frequencies and it allows their recording in a single CCD (color or monochrome) snapshot by adding 3 RGB coherent reference beams at the output plane. In this manuscript, we extend the applicability of SESRIM to the field of digital in-line holographic microscopy (DIHM), that is, working without lenses. As consequence of the in-line configuration, an additional r…
One- and two-photon lasers with injected signal in a high-Q fabry-Pérot cavity
2000
Explicit models are derived for good cavity one- and two-photon lasers with an injected signal in a Fabry-Perot cavity. The steady solutions and their stability properties are obtained analytically and compared with the corresponding ring cavity model ones. Only quantitative differences between both types of cavities are found. In particular we show that (i) the Fabry-Perot cavity reduces significantly the domain of self-pulsing with respect to the ring cavity, and for the two-photon laser case (ii) larger output can be extracted from a Fabry-Perot cavity than from a ring cavity under certain conditions, something impossible in free-running lasers. We conclude that ring cavity models are se…
The Rise of the Nation-State and Free Transit
2017
With a focus on Anthony Pagden, this section delves into the conquest of Americas, and explains how the manipulation of the concept of hospitality legitimated the subsequent dispossession of aboriginal lands. In part, this was because Spain colonized this continent as Rome did Europe, but, and most important, hospitality played a vital role subordinating the indigenous to European archetype, endorsing and granting legitimacy to Spain’s rule over this New World. In so doing, hospitality not only accompanied the ideological discourse of nationhood, but free transit became the touchstone of the West.
Democrazia deliberativa e Convenzione europea dei diritti umani
2010
Deliberative democracy and the European Convention on Human Rights Theories of deliberative democracy have rapidly become very popular amongst political scientists. The central argument of these theories is that democratic legitimacy of lawmaking does not lie (or does not only lie) in the elected character of Parliaments but in public delib- eration processes. Decisions have to be justified by reasons and reasons have to be publicly debated. Legitimacy also depends on the opportunity for citizens to participate effectively in public debates. In this paper I argue that the European Court of Human Rights can be a key player in promoting a democracy based on public deliberation and that in the…
Authenticity and well-being on social network sites: A two-wave longitudinal study on the effects of online authenticity and the positivity bias in S…
2014
In offline settings, authentic behavior has frequently been linked to increased well-being. Social network sites (SNSs) provide a new venue for authenticity, yet the effects of online authenticity are largely unknown. The present study investigated the reciprocal effects of authenticity on SNSs and the psychological well-being of SNS users in a two-wave longitudinal study (N=374). The results demonstrate that online authenticity had a positive longitudinal effect on three indicators of subjective well-being. The data further illustrate that this beneficial effect of SNS use is not equally accessible to all users: participants with low levels of well-being were less likely to feel authentic …
The roles of group potency and information and communication technologies in the relationship between task conflict and team effectiveness: A longitu…
2007
The effects of task conflict on group effectiveness are far from conclusive. In order to further clarify this relationship, a contingency approach has been suggested. In this context, the present study examines the roles of group potency and information and communication technologies (ICTs) in the relationship between task conflict and team effectiveness. The study involved 44 groups of 4 members each, working in two communication media. Twenty-two groups worked in a face-to-face condition, and the other 22 groups worked in a computer-mediated communication condition. The groups developed a project during four weekly sessions over a one-month period. The results showed that group potency mo…
L'edizione critica digitale. La critica del testo nella storia della tradizione
2019
The traditional output of philological work aiming at the constitutio textus is the print critical edition with apparatus footnotes showing select variant readings. The digital scholarly edition, instead, is not constrained by the space limits of the printed page, so it can encode and visualize synoptically many versions of a text, as found in different textual witnesses. This opportunity has often been exploited by New Philology editions, in which textual versions are juxtaposed without any attempt to reconstruct an "original" text. However, the digital critical edition can constitute a "third way" between constitutio textus and New Philology: the digital editor can provide different versi…