According to the basic principle and methods of welfare economics,we analyzed the necessity of appropriate health technology extension,the influence on efficiency and effect of health welfare in rural areas.Meanwhile,by the ideas of welfare economics,we put forward model of technology selection and multi-channel supply mechanism for appropriate health technology extension in rural areas.

Objective: To explore the effect of working memory intervention training on working memory and literacy of children with developmental dyslexia,so as to provide a preference for practice of the trianing of working memory among children with dyslexia. Methods: A total of 32 children with dyslexia of grade 3-5 in a primary school in Guiyang were randomly divided into two groups: the study group (n=16) and the control group (n=16),and the software of training exercises of working memory was applied to conduct interventional trainings of different durations to 2 gruops of children. Results: Through the intervention training of working memory, the scores of literacy and working memory tasks in the study group (2 217.88±252.32, 105.13±7.68) were significantly higher than those in the control group (1 907.69 ± 545.15, 96.50 ± 11.04) (t=2.06, 2.56, P<0.05). Conclusion The working memory ability of children with dyslexia can be improved by working memory intervention training for a certain period of time. The intervention effect is not only significant in the trained working memory task, but also can be extended to other untrained contents such as literacy.

Objective To grasp the general situation of patent application and authorization of 77 medical and health institutions in Zhejaing,to provide reference and basis for promoting the patent application and conversion.Methods Patent data were searched through Bai Teng net patent database,and SPSS 19.0 was used for statistical analysis.Results The total number of patent application showed a trend of generally rise.There were 1430 valid invention patents in total,among which 264 were invention patents and 1166 utility model patents.The total number of patens as well as invention patents were positive correlated to province GDP GDP and doctors per thousand population (r=0.824,0.812,0.784,0.771 respectively,P＜0.001).The rate of collaborative patent application was 6.28％,and there was a significant difference (α=0.05/3,P＜0.001) in the collaborative patent applications around Hangzhou,provincial and other cities medical and health institutions.Conclusions The total number of patents in 77 medical and health institutions in Zhejaing has reached a certain scale,and the number of patents increase with the economic development and the number of doctors per thousand population.The effective patents present in concentrating in regions,and the proportion of invention patents was low.