The computation of reduced unit cells is an important building block for a number of crystallographic applications, but unfortunately it is very easy to demonstrate that the conventional implementation of cell reduction algorithms is not numerically stable. A numerically stable implementation of the Niggli-reduction algorithm of Krivý & Gruber [Acta Cryst. (1976), A32, 297-298] is presented. Th...

traumatic injuries to great vessels are relative common in trauma practice. blunt thoracic trauma may result in dissection injury to aorta and innominate artery. we herein present a late presentation of traumatic innominate artery aneurysm. a29-year-old woman presented with dyspnea to our emergency department. she had previous motor-vehicle accident a month before presentation for which had und...