Abstract: Provided is a new phosphor which can be excited by visible light in a wide band to emit a broad fluorescence spectrum, and also to emit near-infrared light with high intensity. Proposed is a phosphor, which is an oxide comprising Ca, Cu, and Si, wherein the containing molar ratios of the elements are 0.15?Ca/Si<0.25 and 0.13?Cu/Si<0.25.

Abstract: Provided is a new phosphor which can be excited by visible light in a wide band to emit a broad fluorescence spectrum, and also to emit near-infrared light with high intensity. Proposed is a phosphor, which is an oxide comprising Ca, Cu, and Si, wherein the containing molar ratios of the elements are 0.15?Ca/Si<0.25 and 0.13?Cu/Si<0.25.

Abstract: A sender of a message may be alerted that the message he is sending contains content that may be culturally sensitive to the recipient of the message. The message specifying a sender and a recipient may be received, and potentially sensitive content within the message may be identified. Biometric data may then be received and a recipient profile with cultural attributes about the recipient of the message can be accessed. The potentially sensitive content can then be analyzed using natural language processing, and sensitive content within the message can be identified. The sender can then be notified that the message contains sensitive content.