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Sui metodi approssimati di verifica a pressoflessione deviata per le sezioni in cemento armato
No full textPassive vs. Active Mass Damper Control of Wind Excited Tall Buildings
No full textThe performance of passive (TMD), active (AMD) and hybrid (ATMD) mass dampers for the reduction of the buffeting response of tall buildings is investigated. First a simple 1+1 DoF system is considered to model the main structure provided with a mass damper, and the wind buffeting force is simplified into a white noise excitation. A linear quadratic regulator (LQR) control law is used, and in the case of the ATMD, the results are compared to those obtained with a closed form design procedure from the literature. Second a 64-storey building is considered, and modelled accounting for its first four longitudinal modes. In the latter case a more realistic buffeting excitation is considered, accounting for the frequency distribution of the atmospheric turbulence, and for its vertical correlation. It is pointed out how the performance of each device is strongly related to the response parameter to be mitigated, and how simplified 1+1 DoF models can inaccurately estimate the system response, and therefore the control performance
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
Communication of diagnosis in amyotrophic lateral sclerosis: stratification of patients for the estimation of the individual needs
No full textAmyotrophic lateral sclerosis is a fatal and progressive disease, characterized by progressive muscles weakness, with consequent loss of physical capacities. Patients become relentlessly immobile and, in the late stages of the disease, develop a “locked-in” state in which only residual muscular movement is possible, but the intellect and the personality usually remain unimpaired. At now, there is no cure for ALS. The psychological impact of the disease is huge, on both patients and caregivers. Aim of the present Research Topic is to collect new evidence about quality of life, depression, anxiety, pain, spiritual and existential issues, hope and hopelessness in the ALS field, with attention to both patients and their caregivers. Emphasis will be provided to the investigation of psychological support and the possible role of psychologists in this challenging field
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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