Biomedical companies extract blood from the horseshoe crab, Limulus polyphemus, for the production of Limulus Amebocyte Lysate, used worldwide for detecting endotoxins in injectable solutions and medical devices. Despite the extensive use of horseshoe crabs by the biomedical industry, total hemolymph volume in animals of a given size is not known. The hemolymph volume of 60 adult horseshoe crab...

We report our experience performing a robot-assisted dismembered pyeloplasty on a patient with a ureteropelvic junction obstruction in a horseshoe kidney and a prior history of endopyelotomy. We provide 18-month follow-up demonstrating that robotic pyeloplasty is a reasonable second treatment option for patients with horseshoe kidneys with failed prior endourological management.

The forcing relation on n-modal cycles is studied. If α is an nmodal cycle then the n-modal cycles with block structure that force α form a 2n-horseshoe above α. If n-modal β forces α, and β does not have a block structure over α, then β forces a 2-horseshoe of simple extensions of α.

INTRODUCTION Horseshoe Kidneys are the most common renal fusion anomaly. When surgery is contemplated for renal-cell carcinoma in such kidneys, aberrant vasculature and isthmusectomy are the major issues to consider. We describe a case of a pure laparoscopic radical heminephrectomy with hand-sewn management of the isthmus for a 11 cm tumour in a horseshoe kidney. PRESENTATION A 47-year-old ma...

We derive some statistical properties for equilibrium states of partially hyperbolic horseshoes. We define a projection map associated to the horseshoe and prove a spectral gap for its transfer operator acting on the space of Hölder continuous observables. From this we deduce an exponential decay of correlations and a central limit theorem. We finally extend these results to the horseshoe.

Let f : π → π be a homeomorphism of the plane π. We define open sets P , called pruning fronts after the work of Cvitanović [C], for which it is possible to construct an isotopy H : π × [0, 1] → π with open support contained in ⋃ n∈Z f(P ) such that H(·, 0) = f(·) and H(·, 1) = fP (·), where fP is a homeomorphism under which every point of P is wandering. Applying this construction with f being...

We have computed all the orbit-forcing implications, up to period 8, in horseshoe-type flows or maps that generate strange attractors. The results are presented in a horseshoe implication diagram. We describe how this diagram was computed, and show how it can be used to construct a minimal (basis) set of periodic orbits which force the existence of all the periodic orbits associated with a stra...

Global results are proved about the way in which Boyland’s forcing partial order organizes a set of braid types: those of periodic orbits of Smale’s horseshoe map for which the associated train track is a star. This is a special case of a conjecture introduced in [dCHb], which claims that forcing organizes all horseshoe braid types into linearly ordered families which are, in turn, parameterize...

Primary renal carcinoid tumor is a rare tumor of the kidney. Less than 40 cases of primary and metastatic renal carcinoids have been reported. There is a strong association of renal carcinoid tumors with horseshoe kidneys [1, 2]. The radiographic appearance is non-specific and overlaps that of renal cell carcinoma. Histopathologic differentiation between these two entities is essential because ...