Contents. List of Contributors. Introduction to Volume 2 (S.L. Bonting). General Mechanisms of the Effect of Weightlessness on the Human Body (A.I. Grigoriev and A.D. Egorov). Physiological Aspects of Adaptation of Main Human Body Systems during and after Spaceflights (A.I. Grigoriev and A.D. Egorov). Ultrastructural and Cellular Mechanisms in Myocardial Deconditioning in Weightlessness (D.E. Philpott, K. Kato, and J. Miquel). Fluid and Electrolyte Regulation in Space (C. Gharib and R.L. Hughson). Human Nutrition under Extraterrestrial Conditions (H.G. Hinghofer-Szalkay and E.M. Konig). Effects of Spaceflight on Growth and Cell Division in Higher Plants (A.D. Krikorian, H.G. Levine, R.P. Kann, and S.A. O'Conner). Mechanisms of Gravity Effects on Cells: Are there Gravity-Sensitive Windows? (D.A.M. Mesland). Study of the Origin, Evolution, and Distribution of Life with Emphasis on Exobiology Experiments in Earth Orbit (G. Horneck and A. Brack). Chemical Sensors for Space Applications (S.L. Bonting). Index.