Abstract: The present disclosure described herein provides, inter alia, a serum-free and xeno-free culture medium capable of supporting the prolonged expansion of mesenchymal stem cells (MSCs) and a kit comprising the same. The present disclosure also provides a method for expanding mesenchymal stem cells (MSCs) using the culture medium as disclosed as well as a substantially homogeneous population of MSCs produced by said method.

Abstract: The present invention relates to a heat stress resisting technology for transport of live fish. Display screens are arranged in a transport case on the four side surfaces and the top surface, a plurality of transparent interlayer trays are arranged in the fish tank from the bottom to the top, a plurality of small through holes are formed in the interlayer trays, an oxygen generator is arranged in the transport case, an oxygen content meter is arranged in a pipeline of the oxygen generator, a refrigeration system is arranged in the transport case on one side surface, an air exchange pipe is arranged in the fish tank, the air exchange pipe extends out of the transport case, a second solenoid valve is arranged in the air exchange pipe. The present invention makes fish have no swimming activity and lack of response to external stimuli.

Abstract: The invention discloses a modified chitosan-LZM-CA composite antibacterial cling film optimized by response surface methodology and the preparation method and application thereof, relates to the technical field of food packaging materials. The invention provides freshwater crayfish as the research object, and adopts the modified chitosan, lysozyme (LZM), a good film-forming material carrageenan (CA) as the composite antibacterial cling film materials, and through the response surface experimental design to determine the best ratio of modified chitosan-LZM-CA composite antibacterial cling film. Furthermore, the TVB-N value and the change value of the total number of bacterial colonies of the freshwater crayfish with the composite antibacterial cling film during refrigeration, can be regarded as indicators to examine the preservation effect, providing a theoretical basis of the chitosan composite film preservation technology development and application for freshwater crayfish and other aquatic products.

Abstract: A mobile communication device. The mobile communication device includes a baseband processor and an application processor. The application processor includes a modem proxy service module communicatively coupled to the baseband processor and an application management service module communicatively coupled to the modem proxy service module and configured to retrieve identification of a new operating mode. The application management service module is configured to direct appropriate components to initiate actions necessary to switch to the new mode, convey a request to the baseband processor to switch to the new mode, and switch the application processor to the new mode. The baseband processor is configured to convey notification to the application management service module that it completed the mode switch.

Abstract: A method is disclosed of synthesizing a crystalline material comprising a CHA framework type molecular sieve and having a composition involving the molar relationship: (n)X2O3:YO2, wherein X is a trivalent element; Y is a tetravalent element; and n is from 0 to less than 0.01. The method comprises preparing a reaction mixture capable of forming said material, said mixture comprising a source of water, a source of an oxide of a tetravalent element Y and optionally a source of an oxide of a trivalent element X, wherein the reaction mixture is substantially free of fluoride ions added as HF; maintaining the reaction mixture under conditions sufficient to form crystals of the crystalline material; and than recovering the crystalline material. The reaction mixture comprises either a specific directing agent for directing the formation of a CHA framework type molecular sieve and/or a H2O:YO2 molar ratio of greater than 20.