This is so because solving problems by using a derived principle (such as the principle of energy conservation) is usually easier than solving them by using the most basic physical laws or axioms.
Instead of using only one experimental data set, it would be better to establish the general principles by using data sets derived from a known structure.
Proof of principle for cell replacement therapy in PD has also been achieved in several clinical trials by using fetal derived dopaminergic neurons [16] [19].
By applying principles derived from stem cell research, human CIC/CSCs are functionally defined by their enhanced capacity to regenerate cancers using xenograft mouse models.
The governing equations are derived by using the principles of conservation of mass, momentum and energy for a practical case, which includes consideration of frictional losses.
Governing equations of motion for vibrations of a general multilayered plate consisting of an arbitrary number of alternate stiff and soft layers of orthotropic materials are derived by using variational principles.
The governing equations are derived by using the principle of minimum potential energy.
The dietary patterns in the included articles were derived by using the principle component factor analysis, which was a subjective technique and might increase variation at almost every step (e.g., a variation in the number, type of dietary patterns derived within each study and categories of dietary patterns score) (Martinez et al, 1998; Jacques and Tucker, 2001).
An examination of the wave-train closure principle shows that, although the frequency equations obtained by using the principle are identical to those derived from the wave evolution results, the principle does not describe the realistic process of the formulation of vibration modes in general.
To this end, the mass, damping and stiffness matrices of the moving mass element, with respect to the local coordinate system, are derived first by using the principle of superposition and the definition of shape functions.
