Abstract: A resin composition for molding includes a polyarylene thioether resin having a constant ? of 0.8 or greater determined by the Mark-Houwink equation represented by Equation 1: ?=K×M?. In Equation 1, ? is the intrinsic viscosity, M is the molecular weight, and K and ? are constants.

Abstract: A Chrysanthemum zawadskii (abbrev. to “Chrysanthemum”) extract with adjusted contents of each of indicator components of Chrysanthemum zawadskii (abbrev. to “Chrysanthemum”) is disclosed. The indicator components include linarin, chlorogenic acid and isochlorogenic acid. Also disclosed is a method for setting a standard for contents of the indicator components by identifying causes of the difference in properties of the Chrysanthemum extract or raw material and standardizing a preparation process from the analyzed causes of the difference in properties, to obtain a Chrysanthemum extract standardized by setting a content range of each indicator component in the Chrysanthemum raw material. Uses of the extract or a composition containing the extract are disclosed.

Abstract: A video presenter of the invention includes a table with a top surface on which an object is to be positioned; a pivot member disposed at a side of the table; an arched or arc-shaped support arm rotatably coupled with the pivot member and extended therefrom; and, a camera head rotatably coupled with an end of the arched or arc-shaped support arm.

Abstract: A video presenter of the invention includes: a table having a periphery with a substantially curved contour; a pivot member mounted at a side of the table; a support arm rotatably coupled with the pivot member and extended therefrom; and a camera rotatably coupled at an end of the support arm.

Abstract: A camera support structure of a video presenter includes a first support rod having one end portion rotatably installed with respect to a main body of the video presenter, a second support rod rotatably extended from the other end portion of the first support rod, a first joint portion maintaining the first support rod rotatable with respect to the main body of the video presenter, a second joint portion maintaining the first support rod and the second support rod rotatable between 0° through 180° with respect to each other and elastically supporting the first support rod and the second support rod with respect to each other, and a third joint portion maintaining a camera rotatable with respect to the other end portion of the second support rod and elastically supporting the second support rod and the camera with respect to each other.