Mobility and Displacement

Conjugation in the Displacement Group and Mobility in Mechanisms

The paper deals with the Lie group algebraic structure of the set of Euclidean displacements, which represent rigid-body motions. We begin by looking for a representation of a displacement, which is independent of the choice of a frame of reference. Then, it is a simple matter to prove that displacement subgroups may be invariant by conjugation. This mathematical tool is suitable for solving sp...

Mobility and e-Commerce: Driving innovations in payments and cash displacement

Longitudinal migration and inducible displacement of the Mobility Total Ankle System

BACKGROUND AND PURPOSE RSA can be used for early detection of unstable implants. We assessed the micromotion of the Mobility Total Ankle System over 2 years, to evaluate the stability of the bone-implant interface using radiostereometric analysis measurements of longitudinal migration and inducible displacement. PATIENTS AND METHODS 23 patients were implanted with the Mobility system. Median ...

State Capacity, Capital Mobility, and Tax Competition

Abstract The theory of international tax competition suggests that governments attempt to attract mobile capital bases by undercutting the foreign capital tax rate. An analysis of the role that state capacity plays in tax policymaking under international pressures is, however, missing. The central contribution of our study is to highlight the importance of the interaction between state capaci...

Sensitivity of a method for the analysis of facial mobility. I. Vector of displacement.

OBJECTIVE (1) To determine which facial landmarks show the greatest movement during specific facial animations and (2) to determine the sensitivity of our instrument in using these landmarks to detect putatively abnormal facial movements. DESIGN Movements of an array of skin-based landmarks on five healthy human subjects (2 men and 3 women; mean age, 27.6 years; range, 26 to 29 years) were ob...