Fighting for recovery on multiple fronts: The past, present, and future of clinical trials for spinal cord injury.

Through many decades of preclinical research, great progress has been achieved in understanding the complex nature of spinal cord injury (SCI). Preclinical research efforts have guided and shaped clinical trials, which are growing in number by the year. Currently, 1,149 clinical trials focused on improving outcomes after SCI are registered in the U.

Endohedral cluster of Li(10)O with T(d) symmetry.

A detailed numerical study of several isomers of the Li(10) cluster has been done. The analysis of the electronic localization function and the analysis of energy diagrams revealed the existence of one cluster with an inner space capable to suit a heteroatom. The perfect candidate is the Li(10)O cluster due to the experimental evidence of the [Li(6)O](4+) core, the same core present in Li(10)O.