treatment of a tuberculous aneurysm of the descending thoracic aorta in a young patient. A 28-year old male patient was diagnosed with a mycotic aortic tuberculous aneurysm (Fig. 1A) and a thoracic endoprosthesis was implanted. An additional 6-month course of tuberculostatic drugs was completed. After 24 months of follow-up, the patient remains asymptomatic with no evidence of infection recurre...

We present a mechanism able to show intrinsic bistable behaviour involving single Y b ions embedded into bromide lattices, in which intrinsic optical bistability (IOB) has been observed. The mechanism is based on the experimentally found coupling between the Y b ion and the totally symmetric local mode of vibration of the [Y bBr6] 3− coordination unit. The model reproduces the IOB observed in C...

Endovascular technologies are rapidly evolving, often requiring coordination and cooperation between clinicians and technicians from diverse specialties. These multidisciplinary interactions lead to challenges that are reflected in the high rate of errors occurring during endovascular procedures. Endovascular virtual reality (VR) simulation has evolved from simple benchtop devices to full physi...

Carotid-cavernous fistulas (CCFs) pose an anatomically and physiologically challenging problem for clinicians. The most common method of treatment for these lesions is transvenous endovascular embolization via the inferior petrosal sinus or the facial vein. When transvenous access is not possible, an alternate approach must be devised. We describe a case example with bilateral Barrow Type B CCF...

In this paper we study the splitting of separatrices phenomenon which arises when one considers a Hamiltonian System of one degree of freedom with a fast periodic or quasiperiodic and meromorphic in the state variables perturbation. The obtained results are different from the previous ones in the literature, which mainly assume algebraic or trigonometric polynomial dependence on the state varia...

Gossip-based protocols are now acknowledged as a sound basis to implement collaborative high-bandwidth content dissemination: content location is disseminated through gossip, the actual contents being subsequently pulled. In this paper, we present HEAP, HEterogeneity-Aware Gossip Protocol, where nodes dynamically adjust their contribution to gossip dissemination according to their capabilities....