Classification of human motion based on affective state descriptors

Cataloged from PDF version of article.Human body movements and postures carry emotion-specific information. On the basis of this motivation, the objective of this study is to analyze this information in the spatial and temporal structure of the motion capture data and extract features that are indicative of certain emotions in terms of affective state descriptors. Our contribution comprises identifying the directly or indirectly related descriptors to emotion classification in human motion and conducting a comprehensive analysis of these descriptors (features) that fall into three different categories: posture descriptors, dynamic descriptors, and frequency-based descriptors in order to measure their performance with respect to predicting the affective state of an input motion. The classification results demonstrate that no single category is sufficient by itself; the best prediction performance is achieved when all categories are combined. Copyright © 2013 John Wiley & Sons, Ltd

Roughness Induced Rotational Slowdown Near the Colloidal Glass Transition

Roughening the surface of spherical colloids can drastically change their translational and rotational dynamics in dense suspensions. Using 3D confocal microscopy, we show that roughness not only lowers the concentration of the translational colloidal glass transition, but also generates a broad concentration range in which the rotational Brownian motion changes signature from high-amplitude diffusive to low-amplitude rattling. This hitherto not reported second glass transition for rough spherical colloids emerges when the particle intersurface distance becomes comparable to the roughness length scale. Interlocking contacts are responsible for restricting the particle rotations

Photoluminescence and concentration quenching of Pr3+ doped BaTa2O6 phosphor

The pure and Pr3+ doped TTB-BaTa2O6 phosphors were obtained by the solid state reaction method at 1 425 °C for 20hours. X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) analyses confirmed a single phase of BaTa2O6up to 10 mol % Pr2O36. SEM analysis also shows that BaTa2O6 grain size decreased with the increasing Pr2O36 concentration.The chemical composition of Pr3+ doped BaTa2O6 structures was confirmed by Energy Dispersive Spectroscopy(EDS) analysis. BaTa2O6:Pr3+ phosphors exhibited on a strong red emission at 620,9 nm, a green emission at 548,3 nm and a red emission at 655,2 nm. Emission intensity increased with Pr3+ doping concentration up to 1,5 mol %, then decreased due to concentration quenching

Spherical probes for simultaneous measurement of rotational and translational diffusion in 3 dimensions

Real time visualization and tracking of colloidal particles with 3D resolution is essential for probing the local structure and dynamics in complex fluids. Although tracking translational motion of spherical colloids is well-known, accessing rotational dynamics of such particles remains a great challenge. Here, we report a novel approach of using fluorescently labeled raspberry-like colloids with an optical anisotropy to concurrently track translational and rotational dynamics in 3 dimensions. The raspberry-like particles are coated by a silica layer of adjustable thickness, which allows tuning the surface roughness. The synthesis and applicability of the proposed method is demonstrated by two types of probes: rough and smoothened. The accuracy of measuring Mean Squared (Angular) Displacements are also demonstrated by using these 2 probes dispersed in 2 different solvents. The presented 3D trackable colloids offer a high potential for wide range of applications and studies, such as probing crystallization dynamics, phase transitions and the effect of surface roughness on diffusion

CHILDREN’S EMOTION REGULATION AND ATTACHMENT TO PARENTS: PARENTAL EMOTION SOCIALIZATION AS MODERATOR

We examined the associations among parental emotion socialization, and children’s emotion regulation and attachment to parents. In particular, we examined the moderating role of parental emotion socialization in the relationship between children’s emotion regulation and attachment to parents. Participants were 78 Turkish children (49 boys) aged from 60 to 77 months and their parents. Parents reported on the socialization strategies they used for their children’s emotions and on their children’s emotion regulation, and we assessed children’s attachment to parents via the Doll Story Completion Task. Results revealed that parents’ minimization reaction to children’s emotions moderated the association between children’s emotion regulation and attachment to parents. When parents’ response was punitive, children with poor emotion regulation displayed stronger attachment to parents than children with robust emotion regulation. In addition, girls had a more secure attachment than boys to parents. Our results highlight the importance of children’s emotion regulation and parental emotion socialization for children’s secure early attachment to parents

CHILDREN’S EMOTION REGULATION AND ATTACHMENT TO PARENTS: PARENTAL EMOTION SOCIALIZATION AS MODERATOR

We examined the associations among parental emotion socialization, and children’s emotion regulation and attachment to parents. In particular, we examined the moderating role of parental emotion socialization in the relationship between children’s emotion regulation and attachment to parents. Participants were 78 Turkish children (49 boys) aged from 60 to 77 months and their parents. Parents reported on the socialization strategies they used for their children’s emotions and on their children’s emotion regulation, and we assessed children’s attachment to parents via the Doll Story Completion Task. Results revealed that parents’ minimization reaction to children’s emotions moderated the association between children’s emotion regulation and attachment to parents. When parents’ response was punitive, children with poor emotion regulation displayed stronger attachment to parents than children with robust emotion regulation. In addition, girls had a more secure attachment than boys to parents. Our results highlight the importance of children’s emotion regulation and parental emotion socialization for children’s secure early attachment to parents