1,720,971 research outputs found
Impotenza erigendi da fuga venosa: inquadramento diagnostico e possibilità terapeutiche.
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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
Penile Mondors' disease: an underestimated pathology.
No full textTo report the aetiological, diagnostic and therapeutic aspects of penile Mondor's disease treated with non-steroidal anti-inflammatory drugs (NSAIDs) or surgery. During the last 3 years, 10 patients (mean age 35 years, range 20-57) were treated for superficial penile vein thrombophlebitis. The main aetiological factors were prolonged and excessive sexual intercourse, operations for inguinal hernia and deep vein thrombosis. All patients had noticed sudden and almost painless cord-like induration on the penile dorsal surface. Doppler ultrasonography was useful in both diagnosis and follow-up. Eight patients were treated with NSAIDs and platelet drugs. The mean interval to resolution of symptoms was 3 weeks. Two patients who did not respond to drug therapy underwent surgery (dorsal vein resection). Medical therapy and, when indicated, vein resection are successful and effective in treating penile Mondor's disease
Ileocecal with teniamyotomies and ileal detubularized neobladders: Considerations about a videourodynamic study after a long-term follow-up
No full textObjective. To evaluate the functionality of ileal detubularized reservoir and ileocecal neobladder with multiple teniamyotomies after a long term follow-up. Material and Methods. Eight patients with ileal detubularized reservoir (IR) and 10 with ileocecal neobladder with multiple teniamyotomies (ICUS) with an average follow-up of 95 months, were submitted to a videourodynamic digital fluorongiographic examination. The patients had the longest disease-free follow-up of our series. Results. Urodynamic data collected were almost good and comparable between IR and ICUS. Anyway the exams showed that the smooth intestinal muscles remain active both in non-detubularized and detubularized bladders even after years. Continence is mostly assured by the striated sphincter, which can withstand transient high pressure peaks but is less effective when facing prolonged pressure increases. While in some cases a valid micturition was achieved simply relaxing the perineal floor, in other cases micturition was obtained by an abdominal straining against the resistance of a contracted urethral sphincter/pelvic floor even after a long follow-up. Conclusions. Detubularization and teniamyotomies can equally help the striated sphincter function by increasing the neobladder compliance. Moreover we observed that a non-spherical neobladder was compatible with good clinical results as well, proving that neobladder shape was less important in achieving good functional performance. Furthermore, in some cases the optimal relaxation of the perineal floor made abdominal straining superfluous especially when neobladders had physiological capacity. Thus a perineal floor musculature training and its co-ordination with abdominal muscles may improve the quality of micturition
Three consecutive cases of adenomatoid tumour of the epididymis: histological considerations and therapeutical implications. Review of the literature.
No full textAdenomatoid tumour is an uncommon neoplasm of the male genital tract. The Authors report their recent observation of three consecutive cases of adenomatoi tumour of the epididymis. In all cases the diagnosis was difficult and done only by an accurate histological examination. The treatment was conservative, consisting in the removal of the neoplasm. After a follow up of at least two years the patients do not show any sign of relapses confirming the validity of the surgical therapeutical approach performed. Because of the unfrequent observation of these forms and the difficulty in the diagnosis, the Authors stress the necessity of the surgical exploration with an accurate microscopic examination of the specimens. Moreover a review of the literature from a histological and therapeutical point of view was done and reported
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
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