Andrew Moore and colleagues reply to Des Spence.

Extended Moore-Spence Equations Based Reduced Method for Computing Bifurcation Points of Power System Model

For differential-algebraic power systems, saddle-noddle bifurcation and Hopf bifurcation are both of universally existent phenomena in power systems. Usually Newton iteration method could be applied to the Moore-Spence system to compute saddle-noddle and Hopf bifurcation points directly. But the Moore-Spence system has very high dimension and causes much complexity in Jacobian matrix factorizat...

A global agenda for electronic injury surveillance: Consensus statement from the Trauma Association of Canada, the Trauma Society of South Africa, and the Panamerican Trauma Society.

Eiman Zargaran, MD, MHSc, Lauren Adolph, Nadine Schuurman, PhD, Larissa Roux, MD, PhD, Damon Ramsey, MD, Richard Simons, MB, BChir, Richard Spence, MD, Andrew J. Nicol, MD, PhD, Pradeep Navsaria, MD, Juan Carlos Puyana, MD, Neil Parry, MD, Lynne Moore, PhD, Michel Aboutanos, MD, MPH, Natalie Yanchar, MD, Tarek Razek, MD, Chad G. Ball, MD, MSc, and S. Morad Hameed, MD, MPH, for the Trauma Associ...

Game Changers

The evolution of musculoskeletal ultrasound as a tool in the daily practice of the rheumatologist has been astounding. Its benefits include relative lack of expense and the capability to carry out dynamic joint assessment 1. Whereas plain radiographs demonstrate established bony damage, ultrasound can highlight ongoing synovial inflammation, nonradiographic bony erosion and soft tissue patholog...

The BMA and its staff's private health cover.

An error crept into Des Spence’s column about private health cover for BMA staff (BMJ 2013;347:f5199, doi:10.1136/bmj. f5199). The BMA’smedia office told Spence during his research for the article, “Private medical insurance is only offered to a very small number of the BMA’s most senior members of staff—directors in the senior managers group—as part of their remuneration package.” However, Spe...

Ultradeep Sequencing of Noncoding Regions Lymphoma Analyzed by Quantitative Intraclonal Diversity in Follicular