BACKGROUND It is important to understand the relationship between electrical and mechanical ventricular activation in CRT patients. By measuring local electrical activation at multiple locations within the coronary veins and myocardial contraction at the same locations in the left ventricle, we determined the relationship between electrical and mechanical activation at potential left ventricula...

Signal transduction pathways activated by chemoattractants have been extensively studied, but little is known about the events mediating responses to mechanical stimuli. We discovered that acute mechanical perturbation of cells triggered transient activation of all tested components of the chemotactic signal transduction network, as well as actin polymerization. Similarly to chemoattractants, t...

A new kind of flex-activated mechanophore, N-heterocyclic carbene–carbodiimide adduct (NHC-CDI), was developed as a platform to release different NHCs under mechanical load. The polymeric materials containing NHC-CDI can be subjected multiple compression cycles and successively NHCs, which have potential utilized self-healing, self-strengthening self-reporting materials.

The temperature dependence of the heat capacity nanostructured SmFeO 3 ceramics obtained by mechanical activation in range 120-800 K has been studied. It shown that excess mechanically activated is due to: displacements iron and samarium ions with a change angle between FeO6 oxygen octahedra. Keywords: multiferroics, capacity, ferrite, Schottky ceramics, activation.

Mechanical signals are critical to the development and maintenance of skeletal muscle, but the mechanisms that convert these shape changes to biochemical signals is not known. When a deformation is imposed on a muscle, changes in cellular and molecular conformations link the mechanical forces with biochemical signals, and the close integration of mechanical signals with electrical, metabolic, a...

Arsenic sorption on mechanically activated minerals such as magnetite Fe3O4 (Kiruna, Sweden) and olivine (Mg,Fe)2SiO4 (Ǻheim, Norway) has been studied and compared in this work. Experiments were carried out with non-activated and mechanically activated samples. The activation of both minerals was performed in a planetary mill at different milling conditions. The specific surface area and conseq...

Alkali-activated materials are produced by chemically polymerizing the aluminosilicate using alkaline activators, which can effectively lower greenhouse-gas emissions (approximately 73%) released ordinary Portland cement (OPC). Silicomanganese slag is a large solid waste discharged from ferroalloy industry in China that pollute environment and occupy resources. In this paper, alkali-activated m...