130,710 research outputs found
Feasibility study of an enhanced heterodyne dispersion interferometer
No full textInterferometry is the commonly exploited technique for electron density measure-ments in magnetically confined fusion plasma experiments. Reliable electron density measure-ments are fundamental both for machine protection and for plasma physics understanding. In the last years, attention was drawn on the dispersion interferometer concept, because of its robust-ness and simplicity. Nevertheless, the heterodyne version of this configuration, which has several advantages over the homodyne scheme, loses one of the main benefits of the dispersion interfer-ometer technique, that is its inherent insensitivity to vibration errors. In this paper, two methods are proposed and theoretically investigated to reduce the vibration noise in the electron density measurements performed with heterodyne dispersion interferometers
Studio sugli effetti delle Interleuchine 1 e 2 e dell'Interferon- gamma sull'edema polmonare lesionale nel topo I:Validazione del modello sperimentale
No full text[The effect of interleukin 1 and 2 and interferon-gamma on pulmonary edema lesions in mice. I: validation of an experimental model].
No full textON THE EKELAND-HOFER SYMPLECTIC CAPACITIES OF THE REAL BIDISC
No full textIn C-2 with the standard symplectic structure we consider the bidisc D-2 x D-2 constructed as the product of two open real discs of radius 1. We compute explicit values for the first, second and third Ekeland-Hofer symplectic capacity of D-2 x D-2. We discuss some applications to questions of symplectic rigidity
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
The contribution of legal medicine in clinical risk management
No full textBackground: In advanced health services, a main objective is to promote the culture of safety and clinical risk management. In this regard, the reporting of sentinel events fits within a perspective of error analysis, attempting to propose solutions aimed at preventing a new occurrence of the harmful event. The purpose of this study is to analyze the contribution of medico-legal litigation in the management of clinical risk and to propose an organizational model so as to coordinate the intervention of clinical risk management and medico-legal services. Methods: Retrospective review of 206 cases of medico-legal litigation, settled against a Hospital of a North-eastern city in Italy from January 1, 2014 and December 31, 2015. Results: Approximately 20% of cases, that are classifiable as "sentinel events", were not reported due to various factors. The reason that these events are under-reported is mainly due to the latency between the event itself and its manifestation as a serious damage to health as well as the discomfort in reporting the events of this kind, which is still widespread among healthcare workers. The systematic research of the available documentation for medico-legal purposes permits the acquisition of more information concerning the clinical event, thereby increasing the number and accuracy of the reports to the clinical risk unit. Conclusion: The analysis of medico-legal litigation is a valid tool to enhance the reporting of "sentinel events". One possible proposal is the implementation of an organizational model to establish a rapid procedure for the reporting of sentinel events during the evaluation of medico-legal litigations
Performance analysis and application study of a laser enhancement cavity for photo-neutralization of Negative Ion Beams
No full textPhoto-neutralization of negative ion beams is now regarded as a promising concept to enhance plasma heating system efficiency of negative ion based neutral beam injection in large fusion experiments. In this work we describe a photoneutralization scheme currently under test at Consorzio RFX based on the trapping of the second harmonic of a Nd:YAG laser in a closed loop optical cavity. In this work the system performances are analyzed with respect to optical layout and optical losses, in order to identify an optimal configuration, as well as to validate a simple numerical model. The latter is developed to assess the photo-neutralization degree achievable once the system is applied to the NIO1 negative ion beam facility in Padova. In particular, the study defines the requirements of pumping laser energy and repetition rate. A parallel analysis, regarding the application of a resonating enhancement cavity to NIO1, is presented and a comparison between the two approaches is discussed
Effetti dell'esposizione a cadmio e rame in teleostei antartici: Trematomus bernacchii e Trematomus newnesi
No full textHealthcare professionals and patient information: a fresh look from the recent Italian law on consent
No full text: This article discusses the importance of providing patients with adequate information and creating the care relationship, particularly focusing on the role of healthcare professionals in this activity. It examines the main legislative references on this topic at a European level and the new law, No. 219/2017, in Italy on informed consent that serves as a starting point for recalling important legal and ethical principles regarding the information to be provided to patients in the therapeutic relationship
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