Effective lifting of the topological protection of quantum spin Hall edge states by edge coupling.

The scientific interest in two-dimensional topological insulators (2D TIs) is currently shifting from a more fundamental perspective to the exploration and design of novel functionalities. Key concepts for the use of 2D TIs in spintronics are based on the topological protection and spin-momentum locking of their helical edge states. In this study we present experimental evidence that topological protection can be (partially) lifted by pairwise coupling of 2D TI edges in close proximity.

SpineLab: tool for three-dimensional reconstruction of neuronal cell morphology.

SpineLab is a software tool developed for reconstructing neuronal feature skeletons from three-dimensional single- or multi-photon image stacks. These images often suffer from limited resolution and a low signal-to-noise ratio, making the extraction of morphometric information difficult. To overcome this limitation, we have developed a software tool that offers the possibility to create feature skeletons in various modes-automatically as well as with manual interaction.

[Long-term results after therapy of paraffin induced sclerosing lipogranuloma of the eyelids and the anterior orbit in three patients].

Background: Chronic lipogranuloma of anterior orbit and the eyelids is a rare inflammatory pseudotumor with a high tendency of recurrence. It is most commonly related to prior endonasal sinus surgery.

History And Signs: We report on three patients with chronic lipogranulomata who were treated at the university eye-hospital of Düsseldorf during the last 8 years.