1,720,973 research outputs found
Fast growing new firms in a slow growth economy: Institutional conditions for innovation
No full textProblems Connected with Protection of Monuments from Aggressive Agents
No full textEmphasis is given to the importance of the conservation of the exterior surfaces of great architectures as palaces, castles, bridges, etc., and monuments, triumph arches, statues, sculptures and, in general, masterpieces of marmor, stone and related materials located outdoors. Protection problems in this field are important in Italy, where a great number of these treasures are often in heavily-polluted environments, and, consequently, undergo a continuous destructive action.
The problem of the protection of marmor surfaces can be tackled according to various approaches. Among these the treatment with organic coatings of both the film forming and the sealer type is particularly interesting.
Objective of this work is to make a contribution to the methodology of characterization of the above mentioned protective materials. So, the most suitable protective product and application procedure, in dependence on the material to be protected and the nature of the aggressive agents, can be more easily identified.
In particular, the investigations are aimed at highlighting the behaviour of the protective coating towards: 1) some gases and vapours, through the determination of their solubility in the coating. 2) rain and salt water, through the determination of the weight and the isothermal desoprtion of the water penetrated into the coating and through this into the body of the object exposed to humid atmosphere or immersed in water
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
Beyond the social network analysis in the study of project networks
No full textThe purpose of the research is testing a multidimensional model for network analysis that seems being more adequate than Social Network Analysis (SNA), in the study of networks from an organizational point of view.
On this purpose, after examining the potentialities and limits of SNA and the theoretical background, the model has been applied to the analysis of three project networks comparing the results to those obtained in some basic typologies of network
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
Gender perceptions and practices: the case of a science and technology research organization
No full textIn this chapter we investigate the relationships between perceptions and actual data about work conditions in science and technology, as mediated by gender. More precisely, we compare researchers’ perceptions of various personnel metrics and statistics with actual data in one of the main scientific research institutes in Italy to show that gendered practices and ideologies produce consistent biases in the perception of capabilities of men and women. We believe that stereotypes influence the way women and men researchers are differently considered and evaluated within a scientific context and lead to the underestimation of women’s work. We further claim that this underestimation is perpetuated by both men and women at all levels in the hierarchical structure of the organization. This social pervasiveness can exert relevant effects on organizational behaviors, hindering judgments in scientific and career track evaluations of female researchers. We compare perceptions and actual data about gender differences in job security, income and scientific productivity, showing a consistent tendency to consider as different the achievements obtained by female researchers. This tendency is shared by both men and women, but it takes different paths for the two genders. While this tendency does not, per se, imply an overt discrimination against women in the workplace, it can partly explain some of the macro-differences that are apparent in the literature
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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