Case Summary. A popliteal artery entrapment syndrome and subsequent bypass surgery could cause severe, hard, fibrous occlusion of the native popliteal artery. Endovascular therapy that opens the native vessel is important to keep patency. It was impossible to advance the antegrade wire, as the entry of the native artery was not found by angiography or intravascular ultrasound imaging, making re...

AIM This study has compared the Shear Bond Strengths (SBSs) of ceramic brackets and metal brackets. MATERIALS AND METHOD Forty freshly extracted, human maxillary first premolars were selected for bonding. They were equally bonded with ceramic brackets (Transcend series 6000) and metal brackets (Mini Dynalock Straight wire brackets). A no - mix orthodontic adhesive system was used. Their shear...

atic duct stents is a recognized complication that occurs in up to 5.2% of patients [1], and stent retrieval is important to prevent long-term serious ductal damage. Reported techniques to remove proximally migrated pancreatic duct stents include balloon extraction, direct snare or forceps grasp, and wire cannulation with snare capture. We report a novel technique using the SpyGlass Direct Visu...

The aerospace environment imposes straight operative conditions so every electronic system usually needs to be validated for these. The same way, communication systems need to be evaluated before their introduction in aerospace applications. In the paper we present a new methodology for the evaluation of communication systems in space applications. The methodology aims, by abstraction, at ident...

The shapes of two wires in a vertical plane with the same starting and ending points are described as complementary curves of descent if beads frictionlessly slide down both of them in the same time, starting from rest. Every analytic curve has a unique complement, except for a cycloid (solution of the brachistochrone problem), which is self complementary. A striking example is a straight wire ...

We report a new approach, termed "growth by nanopatterned host-medicated catalyst" (NHC growth), to solve nonuniformities of Si nanowires (NWs) grown on amorphous substrates. Rather than pure metal catalyst, the NHC uses a mixture of metal catalyst with the material to be grown (i.e., Si), nanopatterns them into desired locations and anneals them. The Si host ensures one catalyst-dot per-growth...

The Ampère theorem and the Biot–Savart law are well known tools used to calculate magnetic fields created by currents. Their use is not limited to the case of magnetostatics; they can also be used in time-dependent problems. We show in this paper that the highly classical example of a straight wire,generally treated as a simple magnetostatics problem, should be considered in the framework of ti...

In the second part of this series, three clinical examples are presented to illustrate the use of auxiliary space-closure springs with clinically manageable moment-to-force ratios and new canine brackets to accommodate these springs within the framework of conventional and straight-wire 0.018-inch appliance systems. Eligiloy retraction spring models (0.1650 inch x 0.02150 inch) in the edgewise ...

'The following procedure, which is suggested as an alternative to the above operations, can be used in combination with other plastic operations for ectropion of the lower lid. The object of the operation is to provide a new round opening into the lower canaliculus, 2 mm. below the original punctum. The instruments required are a Nettleship dilator, j-size Bowman's probe or similar size silver-...

The aerospace environment imposes straight operative conditions so every electronic system usually needs to be validated for these. The same way, communication systems need to be evaluated before their introduction in aerospace applications. In the paper we present a new methodology for the evaluation of communication systems in space applications. The methodology aims, by abstraction, at ident...