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“I tumori nei giovani tra i 15 e 24 anni di età nella provincia di Trieste, 1972-1993: analogie e differenze con le neoplasie in età pediatrica.” Epidemiol Prev 26:36-44;2002
No full textMalignant tumours in first-degree relatives of cancer patients aged 0-25 years (Province of Trieste, Italy)
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Malignant tumors in children living in the province of Trieste, 1972-1993: descriptive epidemiology and the quality of diagnostic-therapeutic services [I tumori maligni nei bambini residenti nella provincia di Trieste, 1972-1993: epidemiologia descrittiva e qualità dei servizi diagnostico-terapeutici.]
No full textThe study objectives were: 1) to analyse the incidence and death rates from cancer among children aged 0-14 years resident in the north-eastern Italian province of Trieste between 1972-1993, using data from the population-based Trieste Cancer Registry; 2) to evaluate the local diagnostic facilities by analysing the accuracy of histological diagnoses, the causes of delay in the diagnosis, and the interval between onset of symptoms and diagnosis of cancer; 3) to calculate the proportion of patients treated following the most effective therapy protocols known at the time of the tumour detection, and to compute the actuarial five-year survival rates since diagnosis. We recorded 123 new cases of cancer (93% microscopically verified) corresponding to a rate, age-standardized to the world population, of 161.9 (standard error [SE] = 15.1) per million child-years. The most common diagnostic group was that of primary brain tumours: 40 cases, rate = 51.0 (SE = 8.4). In 102 cases the diagnosis was made at hospitals in the province of Trieste, with a median time of seven days (25th-75th percentile = 1-16) between admission and diagnosis. In 37 cases the length of the interval between the advancing of the diagnostic hypothesis of cancer and the microscopic diagnosis ranged from eight to 57 days: 20% of the interval was spent in the identification of the lesion, 50% elapsed between the identification and the biopsy, and 30% was spent in performing the microscopic diagnosis. Out of 123 cases, 30 were partly treated or completely treated at centres not located in our province, i.e., at seven different Italian hospitals (14 cases), nine European hospitals (15 cases), and at one North-American centre (one case). The 40 children with brain tumours were spread among 12 institutions. The five-year survival rate increased from 52.4% (SE = 6.3) for the 63 children with cancers diagnosed in 1972-1981 to 62.5% (SE = 7.0) for the 48 with malignancies detected in 1982-1990
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
EPATOBLASTOMA: RISULTATI FINALI DEL PRIMO STUDIO PROSPETTICO COOPERATIVO NAZIONALE ITALIANO - HEPA88
No full textDispelling 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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