Abstract: The invention provides methods and kits for detecting the presence of, the amount of, or the concentration of a substantially non-emitting metal in a sample by a) providing a sensitizer to a chelator of the substantially non-emitting metal thereby creating a sensitized-metal complex; b) adding an unsensitized chelate, and c) detecting a signal from the unsensitized chelate. The substantially non-emitting metal may be gadoliniumn and may exist in complex with a chelator. The unsensitized chelate may be terbium (Tb) or europium (Eu) and the detecting a signal may be performed by fluorescence.

Abstract: In particular embodiments, a system includes a processor operable to receive, from a client device, a user selection of 360-degree media content to display on a display device that is separate from the client device. The processor is further operable to provide the selected 360-degree media content for display on the display device. The processor is further operable to receive motion data from the client device, the motion data indicating motion of the client device. The processor is further operable to provide instructions to adjust a viewing direction within the 360-degree media content displayed on the display device according to the received motion data from the client device.

Abstract: The invention provides methods and kits for detecting the presence of, the amount of, or the concentration of a substantially non-emitting metal in a sample by a) providing a sensitizer to a chelator of the substantially non-emitting metal thereby creating a sensitized-metal complex; b) adding an unsensitized chelate, and c) detecting a signal from the unsensitized chelate. The substantially non-emitting metal may be gadoliniumn and may exist in complex with a chelator. The unsensitized chelate may be terbium (Tb) or europium (Eu) and the detecting a signal may be performed by fluorescence.

Abstract: In particular embodiments, a system includes a processor operable to receive, from a client device, a user selection of 360-degree media content to display on a display device that is separate from the client device. The processor is further operable to provide the selected 360-degree media content for display on the display device. The processor is further operable to receive motion data from the client device, the motion data indicating motion of the client device. The processor is further operable to provide instructions to adjust a viewing direction within the 360-degree media content displayed on the display device according to the received motion data from the client device.

Abstract: In particular embodiments, a system includes a processor operable to receive, from a client device, a user selection of video content to display on a display device that is separate from the client device. The processor is further operable to receive a first user input on a touch-sensitive portion of the client device. The processor is further operable to display, in response to the first user input, a plurality of selectable reactions overlaid on the selected video being displayed on the display device. The processor is further operable to receive a second user input to select one of the selectable reactions. The processor is further operable to display, in response to the second user input, a graphical representation of the selected reaction on the display device, the graphical representation being overlaid on the selected video being displayed on the display device.

Abstract: The invention provides methods and kits for detecting the presence of, the amount of or the concentration of a substantially non-emitting metal in a sample by a) providing a sensitizer to a chelator of the substantially non-emitting metal thereby creating a sensitized-metal complex; b) adding an unsensitized chelate, and c) detecting a signal from the unsensitized chelate. The substantially non-emitting metal may be gadolinium and may exist in complex with a chelator. The unsensitized chelate may be terbium (Tb) or europium (Eu), and the detecting a signal may be performed by fluorescence.