Abstract: Embodiments of the present invention relate to a method, system and computer program product for application programming interface (API) management. According to the method, in response to a first response from an API provider indicating a failure of a first API request initiated by an API requestor, a second API request is generated at least based on the first API request. The second API request is transmitted to the API provider. A second response to the second API request is received from the API provider. A third response is provided to the API requestor based on the second response.

Abstract: A method for driving a display panel is provided. The method includes receiving image data of a frame of image, the image data including a plurality of initial grayscale values respectively for a plurality of subpixels in the display panel; and converting the image data into a converted image data including a plurality of converted grayscale values respectively for the plurality of subpixels. Converting the image data includes compensating a respective initial grayscale value for a respective subpixel by at least a respective delay-compensating factor to obtain a respective converted grayscale value. With respect to a p-th subpixel and a q-th subpixel respectively connected to a respective data line and having a same initial grayscale values, a p-th delay-compensating factor for the p-th subpixel is greater than a q-th delay-compensating factor for the q-th subpixel.

Abstract: The present invention provides a PEGylated and fatty acid grafted chitosan oligosaccharide comprising a structural unit represented by the following Formula (I) and a structural unit represented by the following Formula (II) and synthesize method, wherein the chitosan oligosaccharide has a molecular weight of less than 200,000 Da, and a degree of deacetylation of 70%-100%, and part of free amino groups of chitosan oligosaccharide chain are replaced by a fatty acid or PEG, where n refers to degree of polymerization of the PEG, and R is an alkyl group having 11-21 carbon atoms. The grafting ratio of fatty acids is 1%-50%, and the grafting ratio of PEG is 0.05%-50%. The present invention also comprise a pharmaceutical composition comprising the PEGylated and fatty acid grafted chitosan oligosaccharide as a carrier, and use of the PEGylated and fatty acid grafted chitosan oligosaccharide in preparation of a pharmaceutical composition.

Abstract: The present invention provides a PEGylated and fatty acid grafted chitosan oligosaccharide comprising a structural unit represented by the following Formula (I) and a structural unit represented by the following Formula (II) and synthesize method, wherein the chitosan oligosaccharide has a molecular weight of less than 200,000 Da, and a degree of deacetylation of 70%-100%, and part of free amino groups of chitosan oligosaccharide chain are replaced by a fatty acid or PEG, where n refers to degree of polymerization of the PEG, and R is an alkyl group having 11-21 carbon atoms. The grafting ratio of fatty acids is 1%-50%, and the grafting ratio of PEG is 0.05%-50%. The present invention also comprise a pharmaceutical composition comprising the PEGylated and fatty acid grafted chitosan oligosaccharide as a carrier, and use of the PEGylated and fatty acid grafted chitosan oligosaccharide in preparation of a pharmaceutical composition.