1,720,978 research outputs found
Paediatric and juvenile type 1 diabetes in the province of Trento. Twenty years of observations, from 1998 to 2017
No full textObjectives: The study describes the temporal trend of type 1 diabetes (IDDM) in the 0-29 year’s age range in the province of Trento between 1.1.1998 and 31.12.2017, as well as the seasonal and geographical distribution. Study Design: The source of the cases is represented by the provincial registry of IDDM which is part of the national RIDI (Italian register of insulin-dependent diabetes) network. We retrospectively calculated the distribution of total cases by sex, age class and by year. The trend of the annual incidence rate by age group was represented by a three-year moving average of the rate, to contain the annual fluctuations, considering the relative consistency of the cases. The values of the rates are provided with the relative 95% confidence intervals. The seasonal case trend and geographical distribution are also provided, considering, in particular, the incidence for the urban and the rural area and the altitude levels. The significance of the time trend was analysed using the Cochrane-Armitage criterion and the significance of the differences in proportions was analysed using the chi-squared test. Any seasonal differences were analysed using West & Harrison’s dynamic linear model. Results: Between 1998 and 2017, 421 cases of IDDM have been recorded amongst residents aged 0-29 years (21 cases per year). Males were 53% and the prevalent age range is 0-14 years, which constitutes 67.4% of cases. Rates fluctuate in the first 15 years; they appear stable over the last five years. The average annual incidence rate is higher in the 0-14 age group. Its mean value, considering males and females together, is 18/100,000/year (95% CI: 16.0-20.3) and it increase from 13.0 in 1998 to 17.8/100,000 in 2017. In paediatric age groups, the mean annual incidence rate is higher in 10-14 years. Its value is 20.8/100,000/year (95% CI: 17.2-25.10) and goes from 18.1 in 1998 to 14.6/100,000 in 2017. The number of new cases is higher in the months inciNovember- January but does not appear to be statistically significant. The mean annual incidence rate for the entire 0-29 years age range is slightly higher in rural than in urban areas (16.20 vs 14.0/100,000/year). Excess in rural areas is more evident for the 0-14 age group. The average annual incidence rate is higher among individuals residing in mountainous areas, both overall and for individual age groups. The increase in the incidence rate with the increase in altitude is at the limits of statistical significance. Conclusion: The incidence of IDDM in the age of 0-29 years seems to have stabilized over the last 5 years. The rate remains always higher in the age of 0-14 y, but decreases over time in the age of 0-4y. The growth of cases in foreign residents may have importance on the trend of the incidence. Excesses emerge in the winter months, in residents in rural and mountain areas. These excesses are not statistically significant
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
Prevalenza dei casi di tubercolosi a localizzazione polmonare e/o extrapolmonare ricoverati a Ferrara nel quinquennio 1999-2004
No full textDispelling 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
vaccinazione antivaiolosa nella popolazione di ferrara dal 1801 al 1892
No full textIl lavoro vuole mettere in luce le iniziative intraprese contro il vaiolo dai governanti della città di Ferrara nell'intero secolo XIX e completa una precedente pubblicazione sull'epidemie di vaiolo in questa città
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
