1,720,964 research outputs found
Seel in historic fabric: concealment vs hightilighting
No full textThe steel material has changed over time its role in the historic building, passing from the first one linked to the purely technical aspects of consolidation, to the second one, where it is considered a project item with specific intents in the design act. Certainly, these two roles are correlated to different way to use the steel, employed for metallic elements disguised by the existing material or, on the contrary, for components put in view. On the one hand, the rehabilitation project uses metal components for theirs high structural performances, placing them in an hidden position; on the other hand, the transformation project uses steel as a material capable of operating the renovation, finding in the Italian tradition an important technical and formal experimentation, which shows the ability to overlay to the historic layers the ones related to the contemporary culture.
The binomial between concealment and exposure of the added elements is the investigation field of
this research, which explores the delicate boundary between the visible and invisible sphere as a
pretext to understand the dynamics of the Italian design for the built heritage, known for ranging from
conservation to transformation: the duality between these two poles gives to different levels of
evidence the task of defining the steel role
Ancient material and steel:project strategies on the content and the container of the museums of the Italian reconstruction
No full textDevelopment and industrial organization have generated a strong division
of knowledge, turned to specialized aspects rather than the complex and the
complexity of the problems. The design craft, which ensures the collective
sharing of building, is replaced by the mass production that accentuates the
gap between design and technology. Yet, the machine civilization has
allowed the diffusion of materials, such as steel, with enviable technical
performance, a fortiori if it’s used in the recovery of cultural heritage, for
beeing easy to assemble in the constructive site and for the relation between
lightness and structural strenght which ensures the possibility to work on
the existing heritage without making substantial increases of loads on the
fabric already built.
The use of steel technology in the rehabilitation project had different
outcomes over the time, reaching the first synthesis in the Italian
experiments of the 50s and 60s: the design of the individual "pieces" of
construction, then produced in factory, allows the architects to project the
elements as unicuum. A design based on continuous cross-references
between the "whole" and the "part", carefully controlled in terms of
coherence and compatibility both internal and external, let to plan new
architectures, employing strategies that range from the formal re-definition
of existing volumes to the insertion of fragments as separate item, able to set
a dialectical relationship between the old heritage and the new one.
The present research wants to explore the first important moment for
legitimize steel as a material able to transform the existing assets, giving to it
a new identity, recognizable by the community as a product of his culture.
The contribution presents an analysis of Italian projects in order to provide a
tool for the validation of requalification processes for the cultural heritage
Metallic materials between restoration and rehabilitation
No full textThe technological innovation of the late 19th Century, and the need of to rebuild the historic centres damaged by the World Wars, set up the debate over the legitimacy of use of modern materials in the restoration of monuments and rehabilitation of ordinary buildings: In the post-war period, the theoretical position lead to the Restoration Charters: the attitude towards modern materials passes from a total trust to a balanced mistrust, especially when the conservation becomes the primary goal of the restoration project. In contrast, in the refurbishment of ordinary buildings, the Italian tradition moves from a discrete use of steel to a suggested by handbooks. This research wants to explain the different approaches to the metallic materials, highlighting theirs extraordinary potential, both technical and formal, to achieve the aim of conservation or transformation
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
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