1,721,005 research outputs found
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
TARGETED THERAPIES FOR INFLAMMATORY BOWEL DISEASES AND COLORECTAL CANCER: AN INCREASING NEED FOR MICROBIOTA-INTESTINAL MUTUALISM
No full textThe involvement of intestinal microbiota and dysbiosis in the pathogenesis for inflammatory bowel disease (IBD) and colorectal cancer (CRC) is a well-established factto be taken into real consideration when developing targeted therapies. This review aims to depict how advances in our understanding of the role of intestinal flora in the pathogenesis of IBD and CRC are shaping up the therapeutic protocols of their management. It is demonstrated of their management. It is demostrated that there is a circadian regulation of colocyte gene expression in response to microbiota. Dysbiosis leading to a decrease in microbiome biodiversity is also described in IBD patients in IBD patients whereby thick layers of adherent mucosa associated bacteria exist both ulcerative colitis (UC) and Crohn's Disease (CD). Probiotics based approaches using lactobacilli and bifidobacteria improved clinical symptoms of IBD's through the GALT immune modulation. In addition, microbiota transplantation has also been used for IBD treatment. Fecal microbiota transplantation (FMT) consists of transferring gastrointestinal microbiota from a healthy donor to an IBD patient by duodenal infusion of liquid stool suspension to establish microbial homeostasis. the destruction of mucosal integrity fscilitates the passage of bacteria in the injured zone to trigger chronic inflammation, eventually leading to CRC development by creating a carcinogenic environment. Actually, a high level of fusobacterium nucleatum and other bacteria are prevalent in CRC patients, thus suggesting a potential role of these organism in the initiation and progression due to thew production of genotoxic metabolities causing a dfirect damage to DNA integrity. Besides, regular probiotics intake may actively prevent the whole process
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
THE USE OF ARGENTUM-QUARTZ SOLUTION IN PRIMARY OR RECURRENT PERIANAL FISTULAS: FIRST EXPERIENCE ON THREE CASES
No full textPrimary perianal fistolous pathology represents a painful condition often noticeable in patients affected by Crohn's disease or Ulcerative Colitis. Ita causes difficult defecation and can evolve in perianal abscess that should be urgently ascertained and drained. The presenbt work aims to propose Argentum-Quartz as valid non surgical therapeutic treatment in order to reach a more confortable perianal fistula healing. In fact, our preliminary data allow us to consider Argentum Quartz ideally employable for treatment of perianal fisrtulas associated or not with IBDs, representing a reliable shincter-sparing solution
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
Cancer: New needs, new models. is it time for a community oncologist? another brick in the wall
Full text linkOver the last few decades, thanks to early detection, effective drugs, and personalized treatments, the natural history of cancer has radically changed. Thanks to these advances, we have observed how survival of cancer patients has increased, becoming an ever more important goal in cancer care. Effective clinical governance of survivorship care is essential to ensure a successful transition between active and post-treatment life, identifying optimization of healthcare outcomes and quality of life for patients as the primary objectives. For these reasons, potential intervention models must consider these differences to rationalize the available resources, including economic aspects. In this perspective, analyzing the different models proposed in the literature to manage this type of patients, we focus on the possible role of the so-called “community oncologist”. As a trained health professional, also focused on longevity, he could represent the right management solution in all those “intermediate” clinical conditions that arise between the hospital specialist, frequently overworked, and the general practitioner, often biased by the lack of specific expertise
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