Takotsubo cardiomyopathy can be divided in apical ballooning, mid-ventricular ballooning, and rarely in basal ballooning. The role of left anterior descending coronary artery is still in debate. Spasms, myocardial bridging and recurrent segment (wrap-around) LAD have been described in takotsubo cardiomyopathy. 8 patients (4 females, mean age 74.3 ± 9.7 years) with typical apical ballooning in 4...

The stochastic dynamics of an active particle undergoing a constant speed and additionally driven by an overall fluctuating torque is investigated. The random torque forces are expressed by a stochastic differential equation for the angular dynamics of the particle determining the orientation of motion. In addition to a constant torque, the particle is supplemented by random torques, which are ...

Actin-based motility in cells is usually associated with either polymerization/depolymerization in the presence of cross-linkers or contractility in the presence of myosin motors. Here, we focus on a third distinct mechanism involving actin in motility, seen in the dynamics of an active actin spring that powers the acrosomal reaction of the horseshoe crab (Limulus polyphemus) sperm. During this...

Flatness is an important quality parameter of heavy plates and it generally achieved through cyclic elastoplastic deformation the plate in a hot roller leveller following rolling cooling processes. To investigate optimize levelling (straightening) process, Finite Element (FE) simulations are widely used. Generally, flow curves with isotropic hardening used for simulations. However, material mig...

The research involved the design of pipe positioning equipment for repair natural gas and oil pipelines. This paper presents results hydraulic straightening device its practical implementation. Several concept calculations analyses were carried out during design. final layout was selected from several possible solutions.

Channelization has changed the form and dynamics of rivers on a global scale. In midwestern United States, widespread straightening meandering headwater streams been undertaken for purpose improving land drainage. Few studies have examined in detail how respond to straightening, especially over timescales nearly century following straightening. This study uses historical aerial imagery contempo...