1Biological Effects and Application of Diamagnetic Levitation by Large Gradient High Magnetic TieldYang Jiancheng, Yang Pengfei, Yang Zhouqi, Wang Zhe, Lyu Yi, Xie Li, Yin Dachuan, Shang PengSPETICAL ARTICLE377-3852Increase of Intracellular Free Calcium Inhibits the Afferent Discharges From Isolated Soleus Muscle Spindle in RatsYu Lei, Zhao Xuehong, Fan Xiaoli, Li XuepingORIGINAL RESEARCH386-3923Effects of Oxidative Stress on the MicroRNAs Profiles of EA.hy926 Cells and Bioin formatics Analysis Under Simulated MicrogravityLiu Jia, Hu Taohong, Jia Mingwen, Zheng Hongwei, Yao Jing, Yuan Min, Wang Jingyu, Yuan MingORIGINAL RESEARCH393-4004Study of Simulated Weightlessness by Tail Suspension on Changes of Ocular Hemodynamics and Axis in RatsGong Yubo, Xu Yongjie, Zhao Hongwei, Zhao Jun, Wang Yuan, Guo Xiaohua, Shi Lin, Si Shaoyan, Qin Yaya, Wu Bin, Luo LingORIGINAL RESEARCH401-4055Effects of a Military Helicopter Noise Exposure on Auditory Function of Guinea PigsChen Xuemin, Xue Xinmiao, Xu Jin, Deng Senlin, Chang Yaoming, Wang XiaochengORIGINAL RESEARCH406-4116Study on Growth Characteristics of Four Lettuce Varieties Under Hypobaria and HyperoxiaTang Yongkang, Gao Feng, Feng Hongqi, Ji YunjieORIGINAL RESEARCH412-4197Effects of Different Levels of Physical Activity on Gut Microbiota in FemaleHe Yingying, Wang Yirui, He Hui, Zhang YiminORIGINAL RESEARCH420-4258Calculation of Oxygen Supply in Civil Aircraft Cabin after DecompressionWei Zhiqiang, Pang XiningORIGINAL RESEARCH426-4319Reliability Prediction of Reverse Pressure-reducing Valve on the Space StationLiu Jianfeng, Xu Yingli, Yang Dongsheng, Li Yuanyuan, Yao QiORIGINAL RESEARCH432-43710Study on Method of Biological Vision Induced Contour DetectionHuang Chunyan, Fan Yingle, Wu Wei, She Qingshan, Gan HaitaoORIGINAL RESEARCH438-44611Multi-scale Entropy Analysis of Short-term RR interval Preceding Onset of Ventricular Tachycardia and FibrillationDong Hongsheng, Liu Qing, Ma Yinyuan, Li HuilingORIGINAL RESEARCH447-45512Research Progress of Cellular Mechanisms in Space Environment Induced Cardiovascular DeconditioningHan Xinglong, Lei Wei, Qu Lina, Li Yinghui, Hu Shijun, Yin WeiminLITERATURE REVIEW456-46213Research Progress in Effects of Transcutaneous Electrical Acupoint Stimulation on Brain Neural ActivityZhou Peng, Song Yutong, Zhang Kuo, Wan Bokun, Li Xinju, Ming Dong, Guo YiLITERATURE REVIEW463-470 