1,721,117 research outputs found
The Petticoat concept for endovascular treatment of Type B aortic dissection
No full textINTRODU CTIO N: A systematic literature search on outcomes of the PETTICOA T technique was aimed at verifying the feasibility and safety of the procedure, comparing clinical outcomes with standard stent-grafting of the proximal entry tear as well as describing the possible benefits in terms of aortic remodeling. EVIDE NCE ACQUISI TIO N: Potentially eligible papers were sought through a computerized search of MEDLI NE and SCOPUS databases between January 2006 and June 2016. Key words used for potentially eligible studies were: "dissection," "bare stent," "thoracic," "endovascular," "PETTICOA T". Studies were considered for review on the basis of these criteria: including more than 5 cases, providing full information on the type of dissection treated and the onset of dissection as well as reporting clinical and technical outcomes. EVIDENCE SYNTHESIS: The literature search identified 11 studies (4 prospective and one controlled) in which the PETTICOAT treatment was employed (439 cases) in type A (N.=40; 9.1%) and Type B (N.=399; 90.9%) dissection complicated by malperfusion in 48.4% of cases with different dissection onsets: acute in 295 cases (67.3%), subacute in 54 cases (12.3%) and chronic in 90 cases (20.5%). Due to the heterogeneity of the cohorts, only the perioperative results of 4 papers (143 patients) reporting a single stage PETTICOA T procedure for the treatment of acute (89 cases) or subacute (54 cases) type B dissection were pooled together. The pooled data demonstrated that the procedure is feasible and safe with an overall 30-day mortality rate of 4.9% and clinical success rate of 90.2%. Six out of 11 papers proposed a clinical comparison between TEVAR alone (TEVAR ) and PETTICOA T in the same dissection setting with no clinical success differences reported at short-term. In terms of aortic remodeling 9 out of 11 papers reported the behavior of lumina after the procedure. All studies observed an early significant expansion of the true lumen expansion in the thoracic and abdominal aorta but when false lumen is taken into consideration, the data are more heterogeneous: both the thoracic and abdominal false lumen decreased in size significantly postoperatively due to the redistribution of the lumens but, at follow-up (6 studies), the FL continued to decrease in size in the stent-grafted area, while in the abdominal aorta remained stable with no shrinkage (4 studies) or increased (2 studies at 2 year follow-up). CONCLUSIO NS: Analysis of the literature data, not only does it demonstrate that the PETTICOA T technique is safe and feasible but also that it is able to enhance the effect of the proximal TEVAR improving the re-expansion of the true lumen of the distal thoraco-abdominal aorta possibly improving end-organ perfusion. However, since there is no evidence of improved short and mid-term survival as well as positive remodeling of the false lumen in the distal aorta, when compared to a simple proximal stent-grafting, a wide-spread use of the PETTICOA T technique is not justified and it should be limited to cases complicated by dynamic malperfusion as a bailout adjunctive tool
Exploring the Relationship Between Restorativeness, Environmental Risk Perception, and Well-Being: The Case Study of Piazzola sul Brenta
Get PDFUrban environments in Northeastern Italy, both natural and historical, are exposed to urbanization, climate change, and environmental risks that can impact perceptions of environmental quality and sustainability. However, the relationship between the perceived environmental risks, the related emotions, and the quality of urban living and well-being remains underexplored. The present study, therefore, aims to investigate the link between the perceived risk of adverse events and the emotion felt about the possibility of damage to historically and economically valuable sites, as well as the residents’ restorativeness, well-being, residential satisfaction, and sense of community. Participants completed online questionnaires addressing the following variables: perceived risk of environmental events; emotions of possible damage; restorativeness; well-being; residential satisfaction; and sense of community. The results showed negative relationships between perceived risk and residential satisfaction, well-being and restorativeness, but positive relationships between negative emotions of losing places of economic value and residential satisfaction, sense of community, and restorativeness. The findings highlight the role of emotions and restorativeness with well-being and satisfaction in residents of Piazzola sul Brenta (Italy)
Dataset supporting the publication "Linear confinement in the partially-deconfined phase"
No full textThis dataset is supporting the publication "Linear confienement in the partially-deconfined phase" (arxiv:2208.14402) by Gautam, Hanada, Holden, and Rinaldi and subsequently published as Gautam, V., Hanada, M., Holden, J. et al. Linear confinement in the partially-deconfined phase. J. High Energ. Phys. 2023, 195 (2023). https://doi.org/10.1007/JHEP03(2023)195
Code and data are available on GitHub at time of writing at https://github.com/erinaldi/pd-potential/tree/main</span
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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