Search results for "Back"
showing 10 items of 2078 documents
Effects of assisted training with neurofeedback on EEG measures, executive function and mood in a healthy sample
2015
The training in neurofeedback (NF) consists of teaching individuals to modify, adjust and enhance their brain activity pattern. The aim of our research was to evaluate the effect of training on cognitive processes, specifically executive function, and mood in a non-clinical sample. A sample of 30 female college students were assigned to three groups: RH: right hemisphere (n = 10), LH: left hemisphere (n = 10) and control (n = 10). The dominance pattern of beta and the inhibition of the theta pattern were trained in a single session. Measures of executive function (Iowa Gambling Test) and questionnaires of mood were taken pre and post training. We found that NF training produced significant …
Valutazione tra pari all’università: due approcci didattici a confronto
2020
Nell’ambito della didattica universitaria occorre rinnovare e diversificare gli strumenti di valutazione includendo sempre più anche tecnologie progettate per la valutazione. Il presente contributo mira a contribuire alla riflessione sulle pratiche didattiche che risultano più efficaci per l’integrazione delle nuove tecnologie per la valutazione formativa e la valutazione tra pari in università. In particolare si vuole verificare se l’utilizzo di tali forme valutative tramite la piattaforma Peergrade sia più efficace in un approccio didattico basato sull’interazione face-to-face o su interazioni a distanza tra una lezione e la successiva. La ricerca, condotta su un campione di 203 studenti …
Structures optiques dissipatives en cavité laser à fibre
2011
This thesis presents a study of the nonlinear dissipative dynamics of localized of self organized structures in passively mode-locked fiber laser through nonlinear polarization evolution. We reveal the existence of a gradual transition from the quasi-cw to mode locked dynamics in the multi-pulsing regime. We emphasize on the intermediate state, where various new dynamics are observed. We study collective behaviors of dissipative solitons in the presence of a continuous background. One of the complex and attractive dynamics presented is the "soliton rain", which composed of three field components : continuous modes of background, drifting of solitons and condensed phase solitons. This dynami…
Questo non è un flashback: frontiere della metalessi
2018
Se Gérard Genette ha contribuito in modo determinante all’annessione della metalessi dagli studi di retorica agli studi di narratologia, è stato ancora più responsabile della marcata deriva cinematografica di quegli stessi studi. Tra tanti suggerimenti ampiamente accolti dagli studiosi, forse alcune provocazioni sono però rimaste nell’ombra: il modo in cui parola e immagine interagiscono nella visualizzazione di racconti e ricordi sono stati riletti come altrettanti giochi metalettici. A poco a poco la metalessi ha finito per espandere i suoi confini, colonizzando i più insospettabili territori della rappresentazione filmica. Non sarà forse il caso di accettarne la sfida per disegnare una p…
Online detection and removal of eye blink artifacts from electroencephalogram
2021
Abstract The most prominent type of artifact contaminating electroencephalogram (EEG) signals are the eye blink (EB) artifacts, which could potentially lead to misinterpretation of the EEG signal. Online identification and elimination of eye blink artifacts are crucial in applications such a Brain-Computer Interfaces (BCI), neurofeedback, and epilepsy diagnosis. In this paper, algorithms that combine unsupervised eye blink artifact detection (eADA) with modified Empirical Mode Decomposition (FastEMD) and Canonical Correlation Analysis (CCA) are proposed, i.e., FastEMD-CCA2 and FastCCA, to automatically identify eye blink artifacts and remove them in an online setting. The average accuracy, …
Out‐of‐Equilibrium (Supra)molecular Systems and Materials: An Introduction
2021
Pseudoradicular and radicular low-back pain – A disease continuum rather than different entities? Rebuttal: Reply to the letter “Cheese and Chalk? Mi…
2008
Internal model-based feedback control design for inversion-free feedforward rate-dependent hysteresis compensation of piezoelectric cantilever actuat…
2018
Abstract This study proposes a new rate-dependent feedforward compensator for compensation of hysteresis nonlinearities in smart materials-based actuators without considering the analytical inverse model. The proposed rate-dependent compensator is constructed with the inverse multiplicative structure of the rate-dependent Prandtl–Ishlinskii (RDPI) model. The study also presents an investigation for the compensation error when the proposed compensator is applied in an open-loop feedforward manner. Then, an internal model-based feedback control design is applied with the proposed feedforward compensator to a piezoelectric cantilever actuator. The experimental results illustrate that the propo…
Pre-production validation of the ATLAS level-1 calorimeter trigger system
2006
The Level-1 Calorimeter Trigger is a major part of the first stage of event selection for the ATLAS experiment at the LHC. It is a digital, pipelined system with several stages of processing, largely based on FPGAs, which perform programmable algorithms in parallel with a fixed latency to process about 300 Gbyte/s of input data. The real-time output consists of counts of different types of trigger objects and energy sums. Prototypes of all module types have been undergoing intensive testing before final production during 2005. Verification of their correct operation has been performed stand-alone and in the ATLAS test-beam at CERN. Results from these investigations will be presented, along …
Clinical and Functional Outcome After Abdominal Wall Incisional Hernia Repair: Evaluation of Quality-of-Life Improvement and Comparison of Assessment…
2019
Background Hernias severely impact patient quality of life (QoL), and 80% of patients need surgical operation. The primary outcome of the study is to assess improvements in balance, posture and deambulation after abdominal hernia repair. Moreover, the study investigated the improvement in the postoperative QoL. Methods Patients operated at the Policlinico “Paolo Giaccone” at Palermo University Hospital between June 2015 and June 2017 were identified in a prospective database. The functional outcome measures and QoL assessment scales used were numeric rating scale for pain, performance-oriented mobility assessment (POMA) scale, Quebec back pain disability scale, center of gravity (barycenter…