1,721,078 research outputs found
Evaluation of the response to therapy of neoplastic lesions
No full textThe introduction of an evaluation standard for the response to therapy of neoplastic lesions is necessary not only for the standardisation of clinical research protocols, but also to allow the objective and transferable management of the oncology patient in routine clinical practice. The international criteria that define how to evaluate a neoplastic disease and to determine its response to treatment were first introduced in the 80s by the WHO and have been recently updated with the new RECIST criteria defined by broad consensus of European and U.S. oncology organisations and published in 2000. The new criteria, especially those related to lesion measurement are substantially different from the previous criteria, they are simpler and easier to use, but present some problems that should be brought to the attention of radiologists who must adjust them with the common sense and balance of judgement resulting from our practice. These problems refer above all to certain types of lesions (such as cystic, bone and nodal metastases), to the method for measuring the maximum diameter, to the use of contrast agents and to the frequency of follow-up examinations, with consequent effects on radioprotection and workloads. In any case, the radiologist who examines a patient with neoplastic lesions and compares the examination results with previous images, should make sure the report does not contain vague language, that the maximum diameters of the lesions are always indicated and that any morphological and/or contrast enhancement changes are described: the report should enable clinicians to make a complete evaluation of the condition and of disease progression, for a global management of the oncology patient
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
Imaging and screening strategies in oncology
No full textThis paper aims to discuss the role of diagnostic imaging in screening protocols for early detection of cancer of
the breast, colon and rectum, prostate and lung. The latest attitude of scientists and public health managers towards
screening programmes is mainly driven by evidence results, but randomised trials are often difficult to start due to
ethical reasons, and difficult to conclude because of the merging new technologies and the long time required. While
mammography, even if sometimes controversial, is nowadays a consolidated tool for early diagnosis of breast cancer,
other diagnostic techniques, such as low-dose computed tomography for detection of lung cancer, need to prove their
efficacy and avoid extended times required to obtain evidence-based results
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
Proposta di un modello per la scelta della strategia di gestione della produzione in contesti con domanda ad elevata incertezza e variabilità
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
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
- …
