Abstract: The present invention relates to a plant-based COVID-19 variant recombinant spike protein expression vector, and a recombinant protein using the expression vector, wherein a plant expression system is used such that the recombinant protein does not have the disadvantages of animal-derived recombinant proteins and exhibits an excellent SARS coronavirus 2 prevention and treatment effect, and thus can be effectively utilized as a safe composition for preventing and treating COVID-19.

Abstract: The present invention relates to a technology for constructing and producing, in the form of virus-like particles (VLPs), alfalfa mosaic virus (AMV) isolated from a plant transformed using a recombinant vector for plant expression that is targeted to the chloroplast, and provides a recombinant vector comprising a polynucleotide encoding a recombinant protein in which a chloroplast-targeting protein and an AMV capsid protein are fused. The present invention also provides a transgenic plant transformed by the recombinant vector, a method for isolating and purifying a target protein from the transgenic plant, a method for producing virus-like particles using same, and the like.

Abstract: An exemplary method includes accessing geometrically located data that represent one or more virtual items with respect to a three-dimensional coordinate system; generating a three-dimensional map based at least in part on real image data of a three-dimensional space as acquired by a camera; rendering to a physical display a mixed reality scene that includes the one or more virtual items at respective three-dimensional positions in a real image of the three-dimensional space acquired by the camera; and re-rendering to the physical display the mixed reality scene upon a change in the field of view of the camera. Other methods, devices, systems, etc., are also disclosed.