Parallel endografts such as "chimney" and "periscope" are being increasingly used to maintain blood flow to visceral and supra-aortic branches in patients with different aortic disorders. We present a new technique, "iliorenal periscope graft", in a patient with abdominal aortic aneurysm undergoing endovascular aortic repair. In this case, left accessory renal artery flows were provided by an i...

* To whom correspondence and reprint requests should be addressed. Some crabs (and other crustaceans) build structures (pillars, hoods, chimneys, etc.) next to their burrows (Powers and Bliss 1983). Some of these structures have been shown to function for sexual attraction, e.g., pillars (Uca: Christy 1988a b), hoods (Uca: Zucker 1974 1981, Christy et al. 2002 2003), mudballs (Uca: Oliveira et ...

Because of the specialty of the undersea channel and the complexity of imaging environment, serious impact on image segmentation and target identification is caused by several uncertain factors in undersea image. This paper proposes a fuzzy pattern recognition approach for undersea image based on fractal features, and realizes reliable target classification in undersea image. Experiments prove ...

Over the last decade it has become increasingly clear that Zetaproteobacteria are widespread in hydrothermal systems and that they contribute to the biogeochemical cycling of iron in these environments. However, how chemical factors control the distribution of Zetaproteobacteria and their co-occurring taxa remains elusive. Here we analysed iron mats from the Troll Wall Vent Field (TWVF) located...

Scrotal cancer has a particular interest for students of the history of occupational medicine as it was the first malignant disease to be connected with a specific occupation when in 1775 Percivall Pott described its occurrence in chimney sweeps.' Although it does arise spontaneously, most cases of scrotal cancer are associated with some occupational hazard. Since the eighteenth century there h...