Additional Prehospital Problems

Prehospital chest tube thoracostomy: effective treatment or additional trauma?

BACKGROUND The use of prehospital chest tube thoracostomy (TT) remains controversial because of presumed increased complication risks. This study analyzed infectious complication rates for physician-performed prehospital and emergency department (ED) TT. METHODS Over a 40-month period, all consecutive trauma patients with TT performed by the flight physician at the accident scene were compare...

Additional Medical Problems in Mountain Environments

Prehospital thrombolysis.

page – this must not exceed 200 words and should describe the core of the paper’s message, including essential numerical data. Use four headings: Aims, Methods, Results, Conclusions. Body of the paper – there should be a brief introduction (no heading) followed by sections for Methods, Results, Discussion, Acknowledgements and Correspondence. References – in the text use superscript numbers for...

Additional Notes on the Comparative Statics of Constrained Optimization Problems

These are additional notes relating to the paper ‘The Comparative Statics of Constrained Optimization Problems,’ which is appearing in Econometrica. It gathers together material present in various earlier versions of the paper, as well as some new material, which are not found in the published article or in its Supplement (both available at the Econometrica website). In particular, these notes ...

Monotone Covering Problems with an Additional Covering Constraint

We provide preliminary results regarding the existence of a polynomial time approximation scheme (PTAS) for minimizing a linear function over a 0/1 covering polytope which is integral, with one additional covering constraint. Our algorithm is based on extending the methods of Goemans and Ravi for the constrained minimum spanning tree problem and, in particular, implies the existence of a PTAS f...