Abstract: A case for a portable device like a smartphone includes light sources such as LEDs, which, when illuminated, can be detected and tracked by a head-worn augmented or virtual reality device. The light sources may be located at the corners of the case and may emit infrared light. A relative pose between the smartphone and the head-worn device can be determined based on computer vision techniques performed on images captured by the head-worn device that includes light from the light sources. Relative movement between the smartphone and the head-worn device can be used to provide user input to the head-worn device, as can touch input on the portable device. In some instances, the case is powered inductively from the portable device.

Abstract: A purified, biologically active yeast mitochondrial heat shock protein exhibiting an Mr of about 60K (hsp60) and its biologically active analogs exhibiting an Mr of 55K-65K are disclosed. Polynucleotide segments that encode hsp60 and its analogs are disclosed as are vectors containing the same, as well as transformed cells that contain the vectors. Methods of assembling non-functional protein subunits into a functional oligomeric protein complex and for converting an inactive form of a monomeric protein molecule or protein subunit molecule into an active form of the molecule are also disclosed.