1,720,980 research outputs found
Etica ed eutanasia: l’orizzonte della responsabilità
No full textIl contributo affronta alcune questioni d’ordine etico-antropologico, particolarmente rilevanti nel dibattito odierno intorno all’eutanasia. L’atto eutanasico assume rilevanza morale, in quanto instaura un tipo di rapporto con la vita e con la salute, mediato dall’azione umana, divenendo, per questo, fonte di responsabilità morale per il soggetto o i soggetti che vi sono coinvolti. La riflessione sull’aspetto morale investe dunque la natura stessa dell’atto e i fattori essenziali che nello specifico concorrono a definirlo. A partire da una distinzione di principio fra bene ontologico e bene morale, dalla quale dipende una giusta correlazione fra la logica oggettiva del riconoscere e quella soggettiva del volere, discende la possibilità di ricercare la sorgente della responsabilità nella coscienza rettamente illuminata, che deve mediare in modo intelligente e libero fra l'assolutezza dei principi e la relatività delle situazioni. La scelta eutanasica investe il problema morale sotto una molteplicità di profili (il valore della vita, la libertà del paziente, il dovere del medico, la ricaduta culturale e istituzionale di comportamenti individuali e collettivi). Quest’ultimo aspetto, in particolare, assegna ad un’etica del bene una centralità strategica per il futuro della convivenza, ancorando al primato della solidarietà l’edificazione di un ethos condiviso
Strategie di gestione e valorizzazione del patrimonio immobiliare delle Aziende del SSN
No full textLa gestione sostenibile del patrimonio immobiliare rappresenta una delle que- stioni più critiche per le aziende pubbliche, comprese quelle sanitarie, sia per l’impatto economico dei costi connessi alla sua gestione, sia per le implicazioni operative relative alla sua capacità, attuale e futura, di sostenere l’erogazione di servizi di qualità. A queste considerazioni si devono aggiungere anche quelle ambientali, ormai imprescindibili nel contesto attuale
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Is First Person Vision Challenging for Object Tracking?
No full textUnderstanding human-object interactions is fundamental in First Person Vision (FPV). Tracking algorithms which follow the objects manipulated by the camera wearer can provide useful cues to effectively model such interactions. Visual tracking solutions available in the computer vision literature have significantly improved their performance in the last years for a large variety of target objects and tracking scenarios. However, despite a few previous attempts to exploit trackers in FPV applications, a methodical analysis of the performance of state-of-the-art trackers in this domain is still missing. In this paper, we fill the gap by presenting the first systematic study of object tracking in FPV. Our study extensively analyses the performance of recent visual trackers and baseline FPV trackers with respect to different aspects and considering a new performance measure. This is achieved through TREK-150, a novel benchmark dataset composed of 150 densely annotated video sequences. Our results show that object tracking in FPV is challenging, which suggests that more research efforts should be devoted to this problem so that tracking could benefit FPV tasks
Visual Object Tracking in First Person Vision
Full text linkThe understanding of human-object interactions is fundamental in First Person Vision (FPV). Visual tracking algorithms which follow the objects manipulated by the camera wearer can provide useful information to effectively model such interactions. In the last years, the computer vision community has significantly improved the performance of tracking algorithms for a large variety of target objects and scenarios. Despite a few previous attempts to exploit trackers in the FPV domain, a methodical analysis of the performance of state-of-the-art trackers is still missing. This research gap raises the question of whether current solutions can be used “off-the-shelf” or more domain-specific investigations should be carried out. This paper aims to provide answers to such questions. We present the first systematic investigation of single object tracking in FPV. Our study extensively analyses the performance of 42 algorithms including generic object trackers and baseline FPV-specific trackers. The analysis is carried out by focusing on different aspects of the FPV setting, introducing new performance measures, and in relation to FPV-specific tasks. The study is made possible through the introduction of TREK-150, a novel benchmark dataset composed of 150 densely annotated video sequences. Our results show that object tracking in FPV poses new challenges to current visual trackers. We highlight the factors causing such behavior and point out possible research directions. Despite their difficulties, we prove that trackers bring benefits to FPV downstream tasks requiring short-term object tracking. We expect that generic object tracking will gain popularity in FPV as new and FPV-specific methodologies are investigated
Antibacterial activity of diode laser 808 nm in combination with povidone-iodine: a preliminary in vitro study
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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