Kinking of a transluminal pacing probe

Congenital kinking of aorta

Pseudocoarctation is an unusual anomaly mirroring true coarctation. Congenital kinking or pseudocoarctation of aorta was never a benign condition. Although surgical repair should be suggested for all symptomatic individuals. Regular follow-up is obligatory for all asymptomatic patients deprived of linked anomalies. We suggest CT-aortogram as a non-invasive imaging modality for the definitive di...

Crack kinking in a piezoelectric solid

The intrinsic coupling between the mechanical and the electric _elds assigns a unique feature for the fracture in a piezoelectric solid[ We model the kink of a crack by continuous distribution of edge dislocations and electric dipoles[ The problem admits an approach based on the Stroh formalism[ A set of coupled singular integral equations are derived for the dislocation and electric dipole den...

Kinking conditions for running cracks

The Droblem of the abru~t change of the direction of a crack, DroDagating with high velocity, is studied in the resent work. The study is based on a unified ao~roach of the directional instability ~henomena, which accomDany running cracks. According to this ao~roach, the running ti^ is simulated by a reb branched configuration, consisted of two microcracks of arbitrary lengths and orientations....

Enantiospecific kinking of DNA by a partially intercalating metal complex.

Opposite enantiomers of [Ru(phenanthroline)(3)](2+) affect the persistence length of DNA differently, a long speculated effect of helix kinking. Our molecular dynamics simulations confirm a substantial change of duplex secondary structure produced by wedge-intercalation of one but not the other enantiomer. This effect is exploited by several classes of DNA operative proteins.

A case of kinking of the aortic arch.