Copyright © 2015, Trauma Monthly. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited. Another trip for the weary and tired trauma surgeon fo...

Based on the online travel notes released by tourists, using social network analysis, this article analyses spatial structure characteristics of tourist flow under county-level administrative units in Guangxi. The results show that:(1) density Guangxi is sparse, and dominated landscape sightseeing tours coastal holiday tours. (2) Nanning, Guilin, Beihai Yangshuo are core nodes tourism system Gu...

Abstract With the development of human space technology, more and astronauts fly into space. rapid commercial aerospace, ordinary people will go to for sightseeing. However, it should not be ignored that microgravity, radiation, relative geometry, orbit stations have various effects on health astronauts. In recent years, scholars in countries made considerable research progress this field. This...