1,721,593 research outputs found
Tracking and Counting Multiple Moving Objects
No full textThe development of a system able to detect and track moving objects is described. Given a sequence of time-varying images, the goal is to count the number of moving objects that cross a counting line. A motion detection scheme is presented that has to determine whether new objects have enterd the scene. A tracking approach that combines prediction and matching steps is then needed in order to follow the objects until they reached the counting line. The efficiency of the proposed approach is finally illustrated in experiments using data obtained in a real environmen
Liver Transplantation Surgery: How We Do It Today In Italy
No full textBackground/Aims: Liver transplantation is probably one of the most challenging surgical procedures a surgeon
can face. Since its pioneering time the technique of liver transplantation has dramatically changed evolving to the
present form characterized by many different technical solutions that can be utilized to manage this complex surgery.
The aim of this study is to report the result of a national survey regarding the surgical technique of liver transplantation
in Italy. Methods: a questionnaire, focusing donor’s liver harvesting and surgical technique of recipients’ hepatectomy
and graft implantation was emailed to all the 21 centers performing liver transplantation in Italy.
Results: Nineteen out of 21 (90.5%) of the centers completely fulfilled the survey. The results of this national
survey showed an important variability of the surgical techniques utilized by different centers, reflecting the evolution
of liver transplantation from its ancestor time and the adaptation of novel surgical techniques together with innovative
intraoperative technologies.
Conclusion: The secret of this operation, as for all surgery, is to have complete mastery of the anatomy to avoid
wandering into places or structures where one is not supposed to be and of all the surgical techniques available to
face any possible situation during this high challenging surgery
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
ESPERIENZA CLINICA PRELIMINARE DI RESEZIONI EPATICHE UTILIZZANDO INLINETM IN PAZIENTI UMANI
No full textESPRESSIONE DI DAF UMANO IN CELLULE ENDOTELIALI ED ELEMENTI DEL SANGUE IN MAIALI TRANSGENICI
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