In recent years, law enforcement authorities have increasingly used mathematical tools to support criminal investigations, such as those related to terrorism. In this work, two relevant questions are discussed: "How can the different roles of members of a terrorist organization be recognized?" and "are there early signs of impending terrorist acts?" These questions are addressed using the tools of entropy and network theory, more specifically centralities (degree, betweenness, clustering) and their entropies. These tools were applied to data (physical contacts) of four real terrorist networks from different countries.
View Article and Find Full Text PDFWe investigated competitive conditions in global value chains (GVCs) for a period of fifteen years (2000-2014), focusing on sector structure, countries' dominance and diversification. For this purpose, we used data from the World Input-Output Database (WIOD) and examined GVCs as weighted directed networks, where countries are the nodes and value added flows are the edges. We compared the in-and out-weighted degree centralization of the sectoral GVC networks in order to detect the most centralized, on the import or export side, respectively (oligopsonies and oligopolies).
View Article and Find Full Text PDFPurpose: This study evaluates the frequency of ureteral repair and its management in patients with a history of gynaecologic surgery.
Materials And Methods: After retrospective review of the medical records of all major gynaecologic operations performed over a six-year period (2004-2010), 17 cases of ureteral repair were identified. The indication and the type of gynaecological surgery, the anatomic site, the indication, the type of ureteral repair and the associated morbidity were analyzed.
Int Urogynecol J Pelvic Floor Dysfunct
July 2009
Up to date, the connection of pelvic trauma with genital prolapse is not widely recognized. These cases could be classified in a group where disruption of normal anatomy of the pelvis is apparent (i.e.
View Article and Find Full Text PDFScrotal lymphedema (scrotal elephantiasis) is uncommon outside of filariasis endemic regions. We present a case of a 65-year-old with idiopathic lymphedema of the scrotum and functional impairment of the penis. The patient underwent surgical excision of the edematous subcutaneous tissues and plastic reconstruction of his penis and scrotum.
View Article and Find Full Text PDFObjectives: To develop and test step-wise treatment strategy for erectile dysfunction "non-responders" to tadalafil and vardenafil.
Material And Methods: Two groups [tadalafil-treated (TG); vardenafil-treated (VG)] of 100 consecutive patients complaining of non-response to treatments were enrolled in three-phase study. Phase 1: inadequate use was identified and patients were rechallenged, after receiving detailed usage information.
Objective: The objective of this study was to identify factors that affect efficacy response rate to sildenafil in the clinical practice.
Material And Method: The study comprised 100 consecutive sildenafil non-responders. Mean patient age was 59+/-14.
A case of extraperitoneal migration of a double-J ureteral stent in the retrovesical space as a result of malposition is being described. The management of this very rare complication of stent placement, which has never been reported in the international literature, is presented in detail.
View Article and Find Full Text PDFPurpose: A Nesbit or plication procedure for correcting penile deformities is associated with penile shortening, especially in patients with excessive curvature and/or rotation. On the other hand, grafting procedures are associated with poor postoperative results due to graft shrinkage and veno-occlusive dysfunction. To minimize penile shortening and preserve potency we describe a new surgical technique combining the Nesbit procedure with tunica albuginea free grafting.
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