Abstract: The present invention relates to an X-ray visible medical device comprising a medical device and a layer bound onto the medical device, wherein the layer is composed of an X-ray contrast material or a composite of the X-ray contrast material and a biocompatible polymer. Also disclosed is a method for preparing the X-ray visible medical device.

Abstract: Provided are a method and system for detecting a bot in a Massive Multiplayer Online Role Playing Game (MMORPG) online and in real time. By analyzing a communication pattern between a client and a server, the bot is detected based on parameters such as data length, inter-arrival time and data length auto correlation. Tests using respective parameters are combined to construct a global decision scheme, and thus more accurate detection results can be obtained. An integrated anti-bot defense system can be built by combining other tests such as a Turing test.

Abstract: A pharmaceutical composition, comprising a GluR2-lacking AMPAR antagonist as an active ingredient, is effective for preventing or treating mental diseases selected from the group consisting of posttraumatic stress disorder (PTSD), drug addiction, and phobia.