1,721,166 research outputs found
Re: “Peroperative Intravascular Ultrasound for Endovascular Aneurysm Repair versus Peroperative Angiography: A Pilot Study in Fit Patients with Favorable Anatomy”
Full text linkThe friendly health issue network to support computer-assisted education for clinical reasoning in multimorbidity patients
Full text linkClinical reasoning in multimorbidity conditions asks for the ability to anticipate the possible evolutions of the overall health state of a patient and to identify the interactions among the concurrent health issues and their treatments. The HIN (Health Issue Network) approach, as Petri Nets-based formal language, is introduced as capable of providing a novel perspective to facilitate the acquisition of such competencies, graphically representing the network among a set of health issues (HIs) that affect a person throughout their life, and describing how HIs evolve over time. The need to provide a more immediate user-oriented interface has led to the development of f-HIN (friendly HIN), a lighter version based on the same mathematical properties as HIN, from which stems in turn the f-HINe (friendly HIN extracted) model, used to represent networks related to either real patients’ clinical experiences extracted from electronic health records, or from teacher-designed realistic clinical histories. Such models have also been designed to be embedded in a software learning environment that allows drawing a f-HIN diagram, checking for its format correctness, as well as designing clinical exercises for the learners, including their computer-assisted assessment. The present paper aims at introducing and discussing the f-HIN/f-HINe models and their educational use. It also introduces the main features of the software learning environment it was built upon, pointing out its importance to: (i) help medical teachers in designing and representing the context of a learning outcome; and (ii) handle the complex history of a multimorbidity patient, to be conveyed in Case-Based Learning (CBL) exercises
Self-expanding Nitinol stents for endovascular peripheral applications: A review
Full text linkPeripheral arterial diseases affect a significant portion of the global population, fostering research to find innovative and effective solutions to improve people's life. A primary focus for researchers and manufacturers is the continuous improvement of the most important, non-surgical treatment for this pathology, the endovascular stent. This device is the main feature enabling a lifesaving technique: the percutaneous vascular interventions. Stents are vital for restoring blood flow and enhancing long-term vessel patency, they are available in various materials, shapes and typologies. Recent advancements in stent design, particularly through additive manufacturing, create new opportunities for optimizing the device performance and possibly opening new areas of intervention. This review provides a detailed quantitative analysis on the most widely used category of devices: self-expanding stents made of Nitinol, a nickel-titanium alloy that shows a superelastic behavior. A set of figures of merit related to stent design are described and analyzed, with a focus on the influence of geometry on mechanical performance. Additionally, a comprehensive comparative analysis of the commercial stents evaluates the geometry and performance of many commercial solutions, including both arterial and venous types. This analysis offers quantitative tools to assist surgeons and designers in selecting the most important features of a stent with respect to its main application. To conclude this work, an overview of future manufacturing possibilities is provided mainly focusing on the additive manufacturing technology. The freedom of shape given by this method opens up new paths in terms of global shapes, strut geometry and sizes, revealing new avenues which point strongly towards ad-hoc and specifically patient-customized stent design
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
Variations 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
A methodology of healthcare quality measurement: A case study
No full textIn this paper we present a comprehensive model for quality assessment taking into account structure, process and outcome dimensions introduced in the Donabedian framework. To test our hypothesis a case study based on the Italian healthcare services is reported focusing on the analysis of the hospital bed management and on the phenomenon of both active and passive patient mobility
Quality management system and accreditation of measurements on scientific high-level technological laboratory. The case study of MiNALab
No full textAppropriate 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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