PURPOSE We developed an instrument that permits non-contact, continuous, high speed and high precision monitoring of corneal thickness and tested the stability and reproducibility of measurements made over extended time periods and under various conditions of low surface reflectivity encountered during protracted exposure of the unmoistened corneal surface to ambient air. METHODS The optical ...

The effective thickness of the unstirred fluid layer (USL) adjacent to an epithelial barrier can be estimated from the time course for the accumulation or depletion of a solute at the membrane surface. In 1985 we reported an unstirred layer thickness of approximately 70 microns for Necturus gallbladder epithelium. In our earlier studies the delay caused by noninstantaneous bulk solution mixing ...

Multimedia plays a vital role in both learning systems and the actual education process. However, currently used presentation software is often not optimized and generates a great deal of clutter on the screen. Furthermore, there is often insufficient space on a single display, leading to the division of content. These limitations generally increase cognitive load. In this research, a multi-dis...

Independent lines of evidence suggest that the representation of emotional evaluation recruits both vertical and horizontal spatial mappings. These two spatial mappings differ in their experiential origins and their productivity, and available data suggest that they differ in their saliency. Yet, no study has so far compared their relative strength in an attentional orienting reaction time task...

OBJECTIVE To investigate whether virtual humans produce social facilitation effects. BACKGROUND When people do an easy task and another person is nearby, they tend to do that task better than when they are alone. Conversely, when people do a hard task and another person is nearby, they tend to do that task less well than when they are alone. This phenomenon is referred to in the social psycho...

Mathematical competence can be evaluated by analyzing pauses between strokes that occurring whilst an individual copies equations. These pauses provide a temporal signal that reflects the cognitive effort to process chunks. ‘Centre-click’ interaction with a mouse and response grid on a computer display is introduced as new technique for measuring the temporal chunk signal. Alternative pause mea...

| This paper describes the work currently developed at Heudiasyc and Liia within the Pro-Lab II demonstrator. This project started with the second phase of the European Prometheus/Pro-Art program. Its purpose is to develop an electronic co-pilot to assist the human driver. The global software architecture of the demonstrator, presented in 3], is structured in three main modules: perception , de...

Spectroscopic ellipsometry is a powerful method with high surface sensitivity that can be used to monitor the growth of even sub-monolayer films. However, analysis ultrathin films complicated by correlation between dielectric constant and thickness. This problem usually resolved fixing one or other value, limiting information extracted. Here, we propose determine unambiguously refractive index,...

This paper investigates the behaviour of exposed column base-plates with four outer anchor bolts subjected to monotonic loading. The results six full-scale tests on steel base-plate connections uni/biaxial bending moment are presented. influence thickness and axis orientation connection response is thoroughly investigated. In addition standard measurements, Digital Image Correlation has been us...

Abstract The article focuses on the influence of differential shrinkage linked by drying at early-age displacements and strain distribution a concrete ring specimen. Depending gradient dimension changes through thickness, tensile stress occurs near exposed surface where is greater thus results in gradients development. An experimental design was carried out cast laboratory conditions order to m...