Abstract: Expression constructs and methods for recombinant parvovirus production are disclosed. In some embodiments, the expression construct encodes (1) adenovirus E4 and E2a proteins, (2) parvovirus proteins necessary for the production of the recombinant parvovirus, and (3) a recombinant parvovirus genome, thus allowing production of the recombinant parvovirus by transfecting a host cell with a single expression construct.

Abstract: A method for controlling a visual light source, a terminal, and a video conference system are provided that relate to the field of communications technologies. The method for controlling a visual light source includes: when a first terminal and a second terminal are in a video conference state, receiving, by the first terminal, control information sent by the second terminal; controlling, by the first terminal according to the control information, a first visual light source on a local rotatable platform to rotate, so that a target indicated by the first visual light source is consistent with a target displayed by a display corresponding to the second terminal. Embodiments of the present invention improve user experience of participants in a video conference.

Abstract: A method for controlling a visual light source, a terminal, and a video conference system are provided that relate to the field of communications technologies. The method for controlling a visual light source includes: when a first terminal and a second terminal are in a video conference state, receiving, by the first terminal, control information sent by the second terminal; controlling, by the first terminal according to the control information, a first visual light source on a local rotatable platform to rotate, so that a target indicated by the first visual light source is consistent with a target displayed by a display corresponding to the second terminal. Embodiments of the present invention improve user experience of participants in a video conference.