The efficiency of an optical trap is limited by its axial strength. Light focused by oil-immersion objectives provides stronger traps but suffers from spherical aberrations, thus restricting the axial stability and working distance. By changing the refractive index of the immersion media we compensate spherical aberrations and measure axial trapping strengths at least twice as large as previous...

Te text analyzes the work of artists who use augmentation, information and immersion in specifc contexts—public or private spaces. Te aim of the analysis is to understand socio-cultural transformations in the felds of art and technology in social space and what new forms of aggregation and participation have developed, providing an opportunity to refect on new concepts of democracy that are eme...

We describe the reflection of a strongly focused beam from an interface between two dielectric media. If the beam is incident from the optically denser medium, the image generated by the reflected light is strongly aberrated. This situation is encountered in high-resolution confocal microscopy and data sampling based on solid immersion lenses and oil immersion objectives. The origin of the obse...

The synthetic aperture focusing technique (SAFT) is often used for imaging in non-destructive ultrasonic testing. Conventional SAFT is well suited for contact testing of homogeneous objects because of the constant sound speed throughout the media, whereas the refraction present in the practically important case of immersion tests has so far prevented a widespread use of SAFT for such data. Fort...

The current paper describes research that is aimed at elucidating our understanding of media technology factors that may help users of exercise equipment to stay motivated for doing regular workouts. In particular, we investigated the effects of immersion and coaching by a virtual agent on intrinsic motivation and the sense of presence of participants cycling on a stationary home exercise bike....

We studied two interactive (functional and intentional interactivity) and immersive (technical and psychological immersion) devices with a personal 3D viewer (360° vision and environmentally ego-centered) and their effects on the explicit long-term memories of the subjects (4 groups of 30 students for a total of 120 subjects) (2007 and 2012). We have tested memory, communication and feeling of ...

This study investigated effects of context versus list word presentation, and moving versus static target presentation in a 2 /2 between-subjects design using Athapascan revitalization materials developed in Macromedia Flash† for adult learning. The withinsubjects factor was word type, presented in two randomized sets of four nouns, adjectives, and verbs. Macromedia Flash† was chosen to simulat...

Ludic systems are interactive media productions typically generalised under the heading of computer games, but actually integrating elements of game play, simulation or modeling, and narrative. The success of ludic systems lies in their highly effective modes of player engagement and immersion. Game play, simulation and narrative have their own respective forms of engagement and immersion that ...

Introduction: The purpose of this study was to investigate the effect of flask investment materials on the color changes of different brands of resin denture teeth. Methods: Resin denture teeth (560) were divided into 2 groups according to the materials used for flask investment (silicone or gypsum). All the specimens were thermocycled between 4°C and 60°C with 60-s dwell times for 1,000 cycles...