Action potentials in neurons have been studied traditionally by intracellular electrophysiological recordings and more recently by the fluorescence detection methods. Here we describe a label-free optical imaging method that can measure mechanical motion in single cells with a sub-nanometer detection limit. Using the method, we have observed sub-nanometer mechanical motion accompanying the acti...

Human action categories exhibit significant intra-class variation. Changes in viewpoint, human appearance, and the temporal evolution of an action confound recognition algorithms. In order to address this, we present an approach to discover action primitives, sub-categories of action classes, that allow us to model this intra-class variation. We learn action primitives and their interrelations ...

We address the problem of characterizing goal directed robotic behavior us ing a logic of actions and change Our approach is based on distinguishing two kinds of actions procedural actions which are de ned in a mechanistic way and goal directed actions which are performed through a process in volving tries possibly failures and corrective action and new tries until the goal has been reached The...

Experiments were continued to study the physical nature of drift motion SF 6 molecules under action radiation from a repetitively pulsed CO 2 -laser. To explain effect, such phenomena as change in transport cross-section during laser excitation molecules, phenomenon optical tweezers, thermal diffusion are considered. However, most reasonable explanation this effect is fractionation gas mixture ...

Much of the previous action recognition work focuses on action representation whilst using standard multi-class classifiers such as SVM and k-NN for action classification. We show that these standard classifiers are inadequate in addressing more challenging action recognition problems encountered in an unconstrained environment and propose a novel action classification approach based on cascade...

BACKGROUND Halothane shortens ventricular action potential duration (APD), as a consequence of its inhibitory effects on a variety of membrane currents, an effect that is greater in sub-endocardial than sub-epicardial myocytes. In hypertrophied ventricle, APD is prolonged as a consequence of electrical remodelling. In this study, we compared the effects of halothane on transmural APD in myocyte...

The paper addresses the problem of recovering the execution of a multi-agent plan (MAP) when the occurrence of unexpected events (e.g., faults) may cause the failure of some actions. We deal with MAPs where actions are executed concurrently by a group of agents organized in teams; each team has to achieve a specific portion of the global goal of the given MAP. The MAP is decomposed into sub-pla...

prioritization of sub-watersheds is very important in the natural sources and watershed management. in this study, the morphometric parameter and landuse changes using rs and gis techniques used in order to identify erosion-prone sub-watersheds. the morphometric parameter such as basin relief, the linear parameters (drainage density, bifurcation ratio, length of overland flow, stream frequency ...