Abstract Funding Acknowledgements Type of funding sources: None. BACKGROUND Myocardial work (MW) estimation by pressure-strain loops (PSL) allows a non-invasive evaluation myocardial performance, as recently demonstrated in adult patients. Aim this study is to provide the reference values for global index (MWI), constructive (MCW), wasted (MWW), and efficiency (MWE) group healthy children. METH...

background: increased thoracic kyphosis more than normal ranges are assessed as abnormal. but normal ranges of thoracic kyphosis in deferent age groups have not been identified in our country yet. the aim of present study was investigation of normal ranges of thoracic kyphosis to use as a diagnosis tool in school aged children in kermanshah, western-iran. methods: a descriptive research designe...

Here we give a closure free description of the higher rank numerical range normal operator acting on separable Hilbert space. This generalizes result Avendaño for self-adjoint operators. It has several interesting applications. We show using Durszt's example that there exists contraction T which intersection ranges all unitary dilations contains as proper subset. strengthen and generalize Wu by...