We analyze surface patches with a corner that is rounded in the sense partial derivatives at point are antiparallel. Sufficient conditions for $G^1$ smoothness given, which, up to certain degenerate case, also necessary. Further, we investigate curvature integrability and present examples

Upper cross syndrome is a postural dysfunction that can cause variety of upper-body musculoskeletal problems. Early detection and physiotherapy help to prevent further complications. However, no systematic review has evaluated the effect various intervention strategies treat this syndrome. Therefore, study aims conduct detailed methodological literature search most effective treatment available...

introduction: assessing quality of life for patients with shoulder instability may be essential because of the negative impacts of the disease on patient’s life. the aim of the present study, therefore,  was  to  assess  the  internal  validity  and  consistency,  test-retest  reliability,  and convergent validity of the persian version of the oxford shoulder instability score (osis). material ...

We investigate a connection between two important classes of Euclidean lattices: well-rounded and ideal lattices. A lattice of full rank in a Euclidean space is called well-rounded if its set of minimal vectors spans the whole space. We consider lattices coming from full rings of integers in number fields, proving that only cyclotomic fields give rise to well-rounded lattices. We further study ...