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The article presents a study that determined whether immediate ketamine treatment has protective effects on mouse with induced cerebral ischemia and ischemia/reperfusion injury. It states that the nuclear factor kappa B is expressed following neuron hypoxic/ischemic injury. The findings suggest that ketamine has no notable effect in infarct volume after ischemia while reduced infarction volume was noted after ischemia and reperfusion accounted on the drug's regulation of c-Jun protein.

Abstract: Based on gray error GM (1,1) model, the paper proposed an improved error GM (1,1) model, and used this model to predict cultivated land in Yiyang. The results show that the improved error GM (1,1) model has high prediction accuracy, and better simulation results. And the results conform to the cultivated quantity change rule of Yiyang City, that is, the land area of Yiyang City, will appear in the next few years, modest growth trend, but the per capita arable land is still in the alert level of the United Nations. Therefore, protection of cultivated resources, rational utilization and protection of arable land are urgent tasks. [Copyright &y& Elsevier]

Content analysis is a common research technique that focuses on the actual content and internal features of media. It originated from the research of traditional news information, therefore, making it the perfect research method for analyzing digital news media. Digital media is a unique form of communication, and has a vast array of information. However, research in this area is still in its fundamental stages, therefore, there is a need for more concern towards this subject. This paper analyzes the characteristics of digital media content analysis. The research introduces some methods, according to the applied research of the news content on web media daring SARS. It discusses the problems in the research of media content analysis, then gives some relative suggestions and possibilities of future development of content analysis. [ABSTRACT FROM AUTHOR]