1,720,972 research outputs found
[Epidemiological and clinical impact of the HPV-related tumors in both sexes].
No full textInfection with human papillomavirus (HPV) is very common and is acquired by at least 80% of women in their lifetime. A variable percentage of infections, particularly those supported by high risk types, becomes persistent, triggering a process that can progress to the development of cervical cancer, at least in a proportion of cases. The epidemiologic evidence accumulated over the years indicates the high impact of oncogenic HPV on the world's population, particularly women, and supports the need for preventive intervention. The preventive approach was initially based on screening and has led to important results. In fact, secondary prevention based on screening has reduced cervical cancer mortality by over 80% in many industrialized countries. The availability of HPV vaccines with high efficacy and safety has provided an innovative preventive option that requires to be integrated with secondary prevention already implemented. In this context, based on current scientific evidence, the present monograph has as its aims: 1) the assessment of HPV spread in the world and in Italy; 2) the analysis of the epidemiological and clinical burden of HPV-related diseases in both sexes; and 3) the evaluation of primary and secondary prevention strategies against HPV-related diseases and in particular against uterine cervical cancer
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Quality of life in asthma and COPD: is it measurable in primary care?
No full textBackground. An observational cross-sectional study under the acronym CORDIS (Chronic Obstructive Respiratory
Disease - Italian Study), performed in primary care centers to evaluate the knowledge and the degree
of control of physician-diagnosed asthma and chronic obstructive pulmonary disease (COPD) by Italian General
Practitioners (GPs). The study consisted of two phases, CORDIS-A and CORDIS-B. The CORDIS-B study
included measurement of the quality of life (QoL) of physician-diagnosed asthma and COPD patients.
Aim. Aim of the study was to evaluate the applicability of QoL assessment by means of the SF-12 Questionnaire
in primary care in subjects with asthma or COPD. Secondary, to evaluate the impact of the two
respiratory diseases on patients’ QoL and to measure the correlation between patients’ and GPs’ opinion on
patients’ health status.
Methods. Patients enrolled in the study were males and females aged more than 18 years, with a physician
(GP or specialist) diagnosis of asthma and/or COPD and treated from at least 12 months with a short-term
inhaled β2-agonist, given alone or as component of a multiple therapy. Patients gave written informed consent
to participate to the study and for personal data use. Each patient enrolled in the study privately filled in the
QoL SF-12 questionnaire; both the patient and the GP gave independently the judgement of patient’s health
(Excellent, Very good, Good, Acceptable, Poor) and the two opinions were compared.
Results. Complete QoL data were available for 11,642 subjects with a mean age of 57 ± 17 years and a
prevalence of males of 55.3%. The percentage of patients with asthma, COPD, and asthma plus COPD was
47.2%, 29.2% and 23.6%, respectively. At least one concomitant disease was present in 67% of patients.
In terms of evaluation of patient’s health status, a perfect concordance between the two types of evaluators
was found in 54.6%; the percentage increased up to 95% when considering just one category of difference
between the GP’s and the patient’s evaluation. As for the general Italian population, no substantial gender
difference was found in our study for the SF-12 “Physical Component Summary” (PCS) and “Mental Component
Summary” (MCS) mean scores. However, the CORDIS-B subjects showed more impaired health status
in comparison to general population. Asthmatic patients showed better PCS and MCS scores in comparison
to patients with COPD or asthma plus COPD (p < 0.0001).
Conclusions. This study shows that a) the SF-12 Questionnaire is a simple and useful tool to measure the
QoL of patients with asthma and COPD in primary care; b) there was a very good agreement in the subjective
evaluation of the patient’s health status between GP and patient; c) mental/psychological component is
underestimated both by GP and patient
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