As a large maritime power, China faces multiple and complex maritime rights, interests and security issues, which have raised the importance of safeguarding its maritime rights and interests. It is essential to strengthen the maritime search and rescue (SAR) system and improve the capability of maritime SAR. Based on the characteristics of SAR, this article summarized the current status of maritime SAR system in China and analyzed its shortcomings. The article also put forward some suggestions on strengthening the system, which can provide a theoretical reference for improving the buildup of maritime SAR system in China.

To further the study on building up joint search and rescue system in island landing operations, we need to fully recognize the importance of the system in island landing operations with a strong sense of responsibility and urgency. We should, firstly, follow the rules, understand the characteristics of the joint search and rescue system, and develop typical scenarios, to innovatively explore the new modes of joint search and rescue in island landing operations; secondly, find out the needs in building up of the system, by focusing on the key aspects of command, forces, equipment, training, and regulations; thirdly, develop the information systems of the commanding, professional services, and simulation training based on information technology, to improve the efficiency of joint search and rescue in island landing operations.

As a large maritime power, China faces multiple and complex maritime rights, interests and security issues, which have raised the importance of safeguarding its maritime rights and interests. It is essential to strengthen the maritime search and rescue (SAR) system and improve the capability of maritime SAR. Based on the characteristics of SAR, this article summarized the current status of maritime SAR system in China and analyzed its shortcomings. The article also put forward some suggestions on strengthening the system, which can provide a theoretical reference for improving the buildup of maritime SAR system in China.

To further the study on building up joint search and rescue system in island landing operations, we need to fully recognize the importance of the system in island landing operations with a strong sense of responsibility and urgency. We should, firstly, follow the rules, understand the characteristics of the joint search and rescue system, and develop typical scenarios, to innovatively explore the new modes of joint search and rescue in island landing operations; secondly, find out the needs in building up of the system, by focusing on the key aspects of command, forces, equipment, training, and regulations; thirdly, develop the information systems of the commanding, professional services, and simulation training based on information technology, to improve the efficiency of joint search and rescue in island landing operations.

Objective To explore the expression and significance of protein tyrosine phosphatase SHP2 in experimental bacterial meningitis.Methods A juvenile rat bacterial meningitis model was established by direct intraeisternal injection with Streptococcus pneumoniae. Uninfected control animals were mock-infected with sterile saline.The transcription and expression of SHP2 were detected by reverse transcription-polymerase chain reaction(RT-PCR),Western blot and immunohistochemistry techniques respectively at 1,3,7 and 14 days after infection.White blood cell(WBC)count,concentration of tumor necrosis factor-alpha(TNF-α)in cerebrospinal fluid(CSF)were also measured.Variables that were not normally distributed were compared by the Kruskal-Wallis test.Multiple comparison used Student-Newman-Keuls(SNK).The association between variables was assessed by using the Pearson correlation coefficient.Results Compared with uninfected controls,rats with bacterial meningitis showed a significant upregulation of SHP2 at both mRNA and protein levels(F=12.74,P<0.01;F=198,P<0.01).S HP2 mRNA levels peaked at 3 days after infection increasing more than five fold and remained at high levels at 7 days.In parallel,SHP2 protein levels began to increase at 3 days after infection,reaching a maximal increase of nearly nine fold at 7 days and remained at high levels at 14 days. Immunohistochemical analysis of SHP2 expression in the juvenile rat brain demonstrated that SHP2 labelling cells,identified as neuronal and glial cells,widely distributed in the cerebral cortex and the increased immunoreactive cells around the third ventricle were mainly glial cells.In addition,the protein levels of SHP2 and WBC counts were significantly correlated with each other(r=0.77,P<0.01),while there were no significant correlations between levels of SHP2 and TNF-a (r=0.08,P>0.05).Conclusions SHP2 may participate the pathological progress of the bacterial meningitis,restrating the inflammation and accelerating the renovation,so it can be regard as an index to measure the state of the illness.