Search results for "Generation"

Crescere e insegnare nella società in rete

2011

Il movimento Black Lives Matter

2021

The chapter starts with an analysis of unconventional forms of political participation and illustrates the case of the Black Live Matter movement, with a specific focus on the movement in Italy and Sicily and the contribution of second-generation youth.

Electromagnetically generated extracorporeal shock waves for gallstone lithotripsy: in vitro experiments and clinical relevance.

1989

. First generation shock wave sources have been proved to disintegrate gallstones effectively, but they require the immersion of the patient's body in a tank of water. A recently developed second generation shock wave source (Siemens-Lithostar, Erlangen, FRG) generates shock waves electromagnetically. It presents several novel features. In particular the waterbath can be omitted and due to lower shock wave pressure general anaesthesia is not required. In vitro studies showed that 36 out of 38 gallstones (11–30 mm in diameter) could be disintegrated. Two concrements resisting lithotripsy were pure white cholesterol stones. Independent of shape, size, and composition (cholesterol or pigment) …

Generation of multidimensional random pulses for radioactivity measurements

2000

Multidimensional binary pseudo-random pulses are extremely useful for the set-up calibration and testing of radioactivity measuring equipment. A new method of generation of such signals, based on the parting operation of labeled pulse trains, is presented. The concept of a general coincidence ratio is introduced. Digital window comparators and prohibited or permitted state programmers capable of performing the parting operation and controlling the values of the coincidence ratio are proposed.

On the Design of Fast Wavelet Transform Algorithms With Low Memory Requirements

2008

In this paper, a new algorithm to efficiently compute the two-dimensional wavelet transform is presented. This algorithm aims at low memory consumption and reduced complexity, meeting these requirements by means of line-by-line processing. In this proposal, we use recursion to automatically place the order in which the wavelet transform is computed. This way, we solve some synchronization problems that have not been tackled by previous proposals. Furthermore, unlike other similar proposals, our proposal can be straightforwardly implemented from the algorithm description. To this end, a general algorithm is given which is further detailed to allow its implementation with a simple filter bank…

Advanced nonlinear signal processing in silicon-based waveguides

2015

This talk presents recent progress in optical signal processing based on compact waveguides fabricated mainly using silicon germanium alloys. Applications include supercontinuum generation, wavelength conversion and signal regeneration.

Asymptotic properties of incoherent waves propagating in an all-optical regenerators line

2007

International audience; We present an original method to generate optical pulse trains with random time-interval values from incoherent broadband sources. More precisely, our technique relies on the remarkable properties of a line made of cascaded self-phase modulation-based optical regenerators. Depending on the regenerator parameters, various regimes with noticeably different physical behaviors can be reported.

Bone regeneration in diabetic patients. A systematic review

2019

Background Oral bone regeneration techniques (OBRT) attempt to provide the appropriate bone volume and density to correctly accomplish dental implant treatments. The objective was to determine whether differences exist in the clinical outcomes of these techniques between diabetic and non-diabetic patients, considering the level of scientific evidence. Material and Methods A systematic review following PRISMA statements was conducted in the PubMed, Scopus and Cochrane databases with the search terms: “Diabetes Mellitus”, “guided bone regeneration”, “bone regeneration”, “alveolar ridge augmentation”, “ridge augmentation”, bone graft*, “sinus floor augmentation”, “sinus floor elevation”, “sinu…

Evaluation of Risk Parameters in Bone Regeneration Using a Customized Titanium Mesh

2019

PURPOSE The aim of the study was an evaluation of risk factors for an innovative bone regeneration technique using a customized titanium mesh that was tested in a clinical setting. MATERIALS AND METHODS This retrospective study included 65 patients with 70 grafting procedures of osseous defects of the jaws with a customized titanium mesh together with Advanced- and Injectable-Platelet-Rich Fibrin (A- and I-PRF), resorbable membranes, and bone grafting materials. Exposures of the meshes and grafting outcome were analyzed according to a novel classification as (a) punctual and (b) tooth width or complete exposure of the mesh (c). No exposure was stated as (d). RESULTS In 37% of cases, exposur…

Open Urbanism. Progettare città senzienti e dialogiche

2013

Nella società aperta in cui siamo immersi, la città da “enciclopedia eteroscritta” si evolve in quella che definisco una “wikipedia urbana”: cioè un’opera cognitiva collettiva in cui gli abitanti e gli utilizzatori, i decisori e gli attori, i progettisti e gli attuatori compongono la struttura arricchendola continuamente con l’evoluzione degli usi, con l’interpretazione dei significati, con le volontà delle intenzioni. Essa si evolve come luogo di condensazione delle intelligenze collettive che la abitano e la attraversano, come reticolo sia dei suoi valori consolidati, sia di quelli vocazionali, ma ancor di più di quelli immaginati dal progetto urbanistico nella sua funzione di “catalizzat…