Reply to Beale and Winton

Convergence Properties of Beale - Powell

The Beale-Powell restart algorithm is highly useful for large-scale unconstrained optimization. In this paper, we use an example to show that the algorithm may fail to converge. The global convergence of a slightly modiied algorithm is proved.

The Authors’ Reply

Prospects for new vaccines A . J . BEALE

The Authors’ Reply

Reply to Collignon and

TO THE EDITOR—We read with interest the correspondence from Collignon and Kennedy [1] regarding the duration of carriage of resistant bacteria after travelers return from tropical regions. The authors discussed the divergence in duration using a study they published in 2010 [2] and the VOYAG-R study [3]. While the overall design of both studies is similar, some key points are not. Importantly, ...