Abstract: In one implementation, a method for recording an XR environment. The method includes: presenting, via the display device, a graphical environment with one or more virtual agents, wherein the graphical environment corresponds to a composition of extended reality (XR) content, including the one or more virtual agents, and an image stream of a physical environment captured from a first point-of-view (POV) of the physical environment; detecting, via the one or more input devices, a user input selecting a first virtual agent from among the one or more virtual agents; and in response to detecting the user input, recording a plurality of data streams associated with the graphical environment including a first image stream of the graphical environment from the first POV and one or more data streams of the graphical environment from a current POV of the first virtual agent.

Abstract: The invention is a method for detecting the presence of bacteria in a sample. The method of the invention utilizes the steps of (a) admixing a fluorescent conjugate with a sample to be tested for the presence of bacteria in the sample, wherein a moiety of the fluorescent conjugate is metabolized to release the fluorescent moiety of the fluorescent conjugate; (b) inducing fluorescence of the fluorescent conjugate and the fluorescent moiety of the metabolized fluorescent conjugate at 325-345 nm; (c) simultaneously detecting the fluorescence of the fluorescent conjugate at 370-380 nm and the fluorescent moiety of the metabolized fluorescent conjugate at 445-480 nm; and (d) correlating the detected fluorescence of the fluorescent conjugate and the fluorescent moiety of the metabolized fluorescent conjugate to the presence of bacteria in the sample.

Abstract: A device for application to the top of the index finger to remind the bowler of the proper position of the hand when delivering a bowling ball on the lane of a bowling alley.

Abstract: An adjustable four sided frame assembled of four easily cut-to-length channeled members for displaying strands of Christmas light bulbs around rectangular window panes and having notched flanges running along opposite side of such member for the length of the same for engaging tinsel foil wrapping, and each member having slotted apertures in a longitudinal inner side flange for holding the light bulbs. The frame knocks down for storage.