177,019 research outputs found
L’adenocarcinoide dell'appendice. Presentazione di un caso e considerazioni anatomo-patologiche e clinico-terapeutiche.
[Adenocarcinoid of the appendix: a case report and anatomo-pathological and clinico-therapeutic considerations]. Fornaro R, Secco GB, Terrizzi A, Boaretto R, Fardelli R, Canaletti M, Baldi E, Pastorino A, Ferraris R. G Chir. 1998 Apr;19(4):165-9. Cattedra di Semeiotica Chirurgica I, Università degli Studi di Genova. The Authors underline the most important pathological, clinical and therapeutic aspects of appendiceal adenocarcinoid. Appendiceal adenocarcinoid is quite a rare tumor, presently considered as a single entity; it differs from typical carcinoid of the appendix because of its well definite histology, its aggressive behaviour and its poorer prognosis. There are no precise prognostic and therapeutic criteria to direct the operative choice between appendectomy and hemicolectomy. In particular the tumor diameter is of no use since the tumor often present diffuse rather than nodular growth. According to most Authors appendectomy is not sufficient in the following cases: liver lymph-node or retroperitoneal metastases; cecal meso-appendiceal or peritoneal spreading; histological poorly differentiated tumors, with nuclear atypia and high mitotic count. Some Authors performed hemicolectomy and bilateral oophorectomy in all case with peritoneal involvement since the ovaries are a frequent site of metastases
Postharvest ethylene and 1-MCP treatments both affect phenols, anthocyanins, and aromatic quality of Aleatico grapes and wine
Il controllo locale della malattia dopo amputazione e resezione anteriore bassa per cancro del retto extraperitoneale.
Analisi multivariata dei fattori che influenzano l’incidenza e l’estensione delle metastasi epatiche metacrone da cancro colorettale.
Esperienza ventennale nel trattamento del cancro del retto a sede extraperitoneale. Evoluzione tecnica e risultati.
Efficacy and cost of risk-adapted follow-up in patients after colorectal cancer surgery. A prospective, randomized and controlled trial.
Appropriate Similarity Measures for Author Cocitation Analysis
We 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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