The Gravitational Constant: Generalized Gravitational Theories and Experiments

Screening and Absorption of Gravitation in Pre-Relativistic and Relativistic Theories.- Conformal Frames and D-Dimensional Gravity.- Graviton Exchange and the Gravitational Constant.- Some base for Quantum Gravity.- Brane-inspired models in Gravitation and Cosmology.- Experimental test of a Time-Temperature formulation of the Uncertainty Principle.- The Newtonian Gravitational Constant: Present Status and Directions for future Research.- Toward testing the Fundamental physics by SNIa data.- Investigation of Schmutzer’s Exact External spherically Symmetric Static solution for a Central Body within the framework of the 5-Dimensional Projective Unified Field theory.- On exact solutions in Multidimensional Gravity with antisymmetric forms.- 5D Gravity and the discrepant G measurements.- 2-component cosmological models with perfect fluid and scalar field: exact solutions.- Constraints on Non-Newtonian Gravity from recent Casimir Force measurements.- Searching for Scalar-Tensor Gravity with Lunar Laser Ranging.- Is a hypothetical Long Range Spin Interaction Observable with a Laboratory Detector?.- Prospects for a Space-Based determination of G with an error below 1PPM.- Projective Unified Field Theory revisited and adapted to the new measured values (WMAP). New results refer to approximate static interior and exterior solution of a spherically symmetric perfect fluid sphere with applications to celestial bodies, Einstein effects with particular treatment of the perihelion shift of Mercury including the quadrupole moment of the sun.- The Interface of Quantum Mechanics and Gravity.- Quaternionic Program.