1,720,962 research outputs found
“LA REGOLA DELLI CINQUE ORDINI DI VIGNOLA”. 3D PRINTED LEARNING MODELS
Full text linkThe study of architectural orders has been one of the cornerstones in the education of architects in Academies and Universities up until the 19th century. Although it has lost its original purpose of providing practical tools, the practice of teaching continued into the 20th century and remains a subject of study in school and university courses even today. The focus, often directed at understanding components and recognizing moldings, is still carried out today through redrawing exercises. To complement traditional methods, a teaching aid is being proposed, based on the composition of 3D printed models, designed in such a way that allows students to reassemble the elements of the order according to syntactic rules, helping them understand compositional principles. "La regola delli cinque Ordini di Vignola" (The Rule of the Five Orders by Vignola), one of the most influential treatises from the late Renaissance to the 20th century, was chosen as a reference
The immunological implications of the new Vitamin D metabolism
Full text linkVitamin D is actually a neurohormone whose pleiotropic activities encompass regulation of calcium-phosphate metabolism, cell proliferation and immunomodulation. Starting from a cutaneous compound, 2 hydroxylation steps are required to produce the active form of vitamin D3, named calcitriol [1, 25-(OH)2-cholecalciferol]. The second hydroxylation step may occur at different tis- sues and cell types, including kidney, lung, prostate, brain, immune cells and placenta. Based on the advancing knowledge of Cytochrome P450 functions, a new conception of Vitamin D metabolism emerged. It implies that, depending on the site where the second hydroxylation step occurs, the active hormone can act as a calcium-phosphorus-homeostasis regulator, or an immune system modulator, or a cell proliferation and differentiation regulator. A detailed description of new Vitamin D metabolism and Vitamin D regulation of immune response is provided in this review
Clinical utility of HFABP in myocardial infarction
No full textAssessing chest pain patients presenting to the emergency area (EA) is still a clinical challenge, as acute myocardial infarction
(AMI) diagnosis is not adjudicated in the majority of patients. New generation high sensitivity troponin assays (hs-cTn) still present
some limitations, thus, novel biomarkers to early rule-in and rule- out myocardial infarction in chest pain patients presenting to the
EA are sought after. Among all, heart- type fatty acid binding protein (h-FABP) has been largely investigated. Studies performed on
HFABP in these patients present marked heterogeneity. However, it can be stated that HFABP is clearly not a reliable marker for AMI
diagnosis, neither as a stand-alone test nor in combination with hs- cTn. More interventional trials are needed and more homogeneous studies are required to understand whether HFABP can add incremental value in rule- out AMI and risk stratify chest pain
patients, however, available data may not encourage going on investigating
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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