Abstract:
PURPOSE: In a wireless LAN environment, a video transmission system, a wireless communication apparatus and a method thereof are provided to use wireless channel information, thereby use independent FEC(Forward Error Correction) encoding rate per access point. CONSTITUTION: A video server(400) stores various video contents for a multimedia internet service. The video server provides the stored various video contents to terminal devices(408,410,412,414) through communications network. The video server divides video data into packets before delivering the video data to access points(402,404,406). The video server encodes the divided packet form video data by using a predetermined packet level FEC coding method. The video server transmits the encoded video data to the terminal devices through each access point. [Reference numerals] (400) Video server; (402,404,406) Access point; (AA) Application layer FEC encoding; (BB) FEC rate control through parity packet deletion; (CC) Application layer FEC decoding; (DD) Resource-saving effect; (EE) Wireless channel loss
Abstract:
The present invention relates to a medicine for treating neurodegenerative disease and, more specifically, to a composition for preventing and treating tau protein-mediated neurodegenerative disease, comprising pimozide as an active ingredient, whereby neurodegenerative disease is caused by phosphorylation and aggregation of tau proteins.
Abstract:
PURPOSE: A method for preparing a transgenic dementia animal of Alzheimer type is provided to express human delta-tau protein in cerebral cortex, hippocampus, and bovine brain and to enhance hyperphosphorylation and agglomeration of tau protein. CONSTITUTION: A vector for transformation contains BAI1-AP4 promoter and human delt-tau gene encoding 1-421th amino acid region cutting between 421th(aspartic acid, Asp421) and 422th amino acids in tau protein C-terminal. BAI1-AP4 promoter is a promoter which specifically expresses in cerebral cortex and Hippocampus region of a mouse. A transgenic dementia animal(deposit number: KCTC11622BP) of Alzheimer type is prepared by introducing the vector. A method for preparing the animal comprises: a step of constructing the vector; a step of injecting the vector to a fertilized egg; and a step of performing implantation of the fertilized egg to an animal.