Stabiliztion of protein structure -- Protein stabilization by naturaly occurring osmolytes -- The thermodynamic linkage between protein structure, stability, and function -- Measuring the conformational stability of a protein by hydrogen exchange --Modeling the native state ensemble -- Conformational entropy in protein folding: a guide to estimating conformational entropy via modeling and computation -- Turn scanning: experimental and theoretical approaches to the role of turns -- Laser temperature-jump methods for studying folding dynamics -- Kinetics of conformational fluctuations by EX1 hydrogen exchange in native proteins -- Molecular dynamics stimulations of protein unfolding/folding.