background: patients with spinal cord injury (sci) have a lower health related quality of life (hrqol) compared to both healthy controls and the normal population. the aim of this study was to compare hrqol between two groups of veteran and non-veteran sci patients. methods : all male paraplegic non-veterans who had sustained complete sci before 1988 and were residents of tehran province (iran)...

background: severe upper extremity injuries can affect the quality of life in patients and cause multi-factorial and long-term costs of disease. the aim of this study was to assess quality of life in patients with upper extremity injuries caused by work-related accidents. methods: in this study cross-sectional method was used in patients referred to the occupational medicine clinic of rasoul ak...

We present a new parametrization of inner functions based on the Schur algorithm. We make use of state space formulas (in practice we obtain a new parametrization of observable pairs). The main advantage of our parametrization is that for each chart the observability gramian is constant: this leads to a very good behavior in some approximation problems.

A variable parametrization scheme is developed and demonstrated for shape optimization using quasi-Newton methods. The scheme performs adaptive parametrization refinement while preserving the approximate Hessian of the shape optimization problem and enables free-form shape design using quasi-Newton optimization methods. Using a Bspline parametrization, the scheme is validated using a 1-D shape ...

Within the lattice approach to analysis and synthesis problems recently developed in Quadrat (Signal Syst, to appear), we obtain a general parametrization of all stabilizing controllers for internally stabilizable multi input multi output (MIMO) plants which do not necessarily admit doubly coprime factorizations. This parametrization is a linear fractional transformation of free parameters and ...