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ABSTRACT In this study, membranes composed of Rana chensinensis skin extracts (RCSEs) and poly(ε-caprolactone) (PCL) were fabricated by an electrospinning technique. The RCSEs were prepared by the extraction of R. chensinensis skin with acetic acid solution, and the electrospun membranes were prepared by the mixture of RCSEs and PCL in 1,1,1,3,3,3-hexafluoro-2-propanol before electrospinning. The membranes were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy and were subjected to mechanical tests (tensile and nanoindentation) and antibacterial evaluation. The results indicate that the surface roughness of the fibers clearly decreased with the increase in the amount of PCL in the membranes. The mechanical test indicated that PCL played a dominant role in the mechanical strength of the RCSE/PCL electrospun membranes. As a potential bactericidal packaging material for practical applications, the antibacterial activity results indicate that the membranes had antibacterial effects against Staphylococcus aureus and Escherichia coli. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42030. [ABSTRACT FROM AUTHOR]

This paper uses the methods of literature review, questionnaire and comprehensive analysis to research micro - blog's significant influences on elite college athletes in terms of their learning style, life style and values. It is concluded that the related government departments of the country should strengthen supervision and control of micro - blogs and direct such culture of network public opinions to positive development. [ABSTRACT FROM AUTHOR]

Objective: To establish an animal model of myocardial ischemia with blood stasis syndrome in mini-swines., Methods: An animal model of myocardial ischemia was established in mini-swines by oppressing the coronary artery through the expansion of inner layer of Ameroid constrictor and the Ameroid constrictor was implanted into the distal end of the initial part of the first branch of interventricular septum of ramus descendens anterior arteriae coronariae sinistrae. Dynamic observation of behavior changes, general health status and changes of hemorheological parameters in the mini-swines were made after operation., Results: The coronary angiography showed that the stenosis rate in ischemic group was more than 75% four weeks after operation. Compared with before operation and sham-operated group, there were great changes of behavior, general health status, tongue color and hemorheological parameters in ischemic group (P<0.05)., Conclusion: The animal model of myocardial ischemia with blood stasis syndrome in mini-swines was established successfully 4 weeks after operation. The pathological process in the animal model is similar to that in the patients with chronic myocardial ischemia. So this model can be adopted in the research of myocardial ischemia with blood stasis syndrome.