1Changes in Vasoreactivity of Rat Pulmonary Artery after 7 d Tail-suspensionSUN Lei, WANG De-sheng, REN Wei, XIANG Qiu-lu-52Protective Effects of Tea Polyphenols on Myocardial Free Radical Metabolic Disorder in Mice Induced by Inhalation of Pure Oxygen under 5500 m Hypobaric ConditionZhan Hao, LU Jiang-Yang, ZHANG Qing-jun, HAO Ai-gong, XIN Yi-mei6-103Changes of Human Cerebral Bottom Arterial Hemodynamics during 21 d Head-down Tilt(-6°) Bed-restYAO Yong-Jie, WU Xing-yu, SUN Xi-Qing, WANG Zhong-bo, JIANG Chang-Lin, JIANG Shi-zhong11-164A New Quantitative Analyzing Method for Doppler Tissue Image Sequences17-215Changes of Cardiac Function during 21 d Head-down Tilt Bed Rest and the Effect of Lower Body Negative Pressure in the Last Week22-266Analysis of Mass Minimization of Thermoelectric Integrated Membrane Evaporation Subsystem in Waste Water Processing27-307Determination of +Gz Tolerance End-point by Steady State Visual Evoked Potential31-358Changes of Cardiovascular Indices during Head up Tilt Plus Lower Body Negative Pressure36-409Comparison of Effects of 5 and 20 Hz Magnetic Field on Cerebral Ischemia in Rats41-4410Relationship Between EGG and the Dynamic Process of Motion Sickness Induced by Optokinetic Vection45-4911Inhibitory Effects of Tea Polyphenols and Vitamin C on Lipid Peroxidation Induced by FeSO4- cysteine in Isolated Human Plasma and Carbon Tetrachloride-induced Liver Free Radical Injury in Mice50-5312Cardiac Arrhythmias in Pilots under Positive(+Gz) Acceleration54-5613Study on Induced Mutation of Sorghum Seeds on Recoverable Satellites57-5914Effects of Simulated Weightlessness on T Cell Subpopulations and Activity of IL-2 and IL-6 in Mice60-6215Changes of α-Glucomembrane Protein and Prostaglandin at 5380 m above Sea Level63-6516Changes of Arterial Blood Pressure during Various Stages in Spaceflight Activities66-6917Biomedical Problems of Artificial Gravity:Overview and ChallengeZHANG Li-Fan70-7418Application of Traditional Chinese Medicine in Space Medical ResearchSHI Hong-zhi75-77 