Change of guard

A change of the guard.

Change of guard in Eurosurveillance.

Rapid communications First detection of Echinococcus multilocularis in Sweden, February to March 2011 4 by E Osterman Lind, M Juremalm, D Christensson, S Widgren, G Hallgren, EO Ågren, H Uhlhorn, A Lindberg, M Cedersmyg, H Wahlström Gonorrhoea treatment failures to cefixime and azithromycin in England, 2010 7 by CA Ison, J Hussey, KN Sankar, J Evans, S Alexander Outbreak of rotavirus gastroente...

Changing of the guard won't change the course of group purchasing.

Retiring group purchasing veteran Robert “Bud” Bowen says he is optimistic the industry will convince critics in government that it is capable of regulating itself and thus avoid passage of limiting legislation. Bowen, who retired March 31 as CEO of Amerinet in St. Louis, says there are laws in place to provide the oversight of contracting methods and vendor relationships that critics have dema...

Guard cells

What are guard cells? A pair of guard cells surrounds each stoma on the leaf surface. Stomata are important because they regulate the uptake of CO 2 from the atmosphere for photosynthesis and also the loss of water vapour from the plant during transpiration. The aperture of the stomatal pore is controlled by the two guard cells. When the guard cells are fully turgid the pore gapes open, whereas...

Implementation Advice for IPv6 Router Advertisement Guard (RA-Guard)

The IPv6 Router Advertisement Guard (RA-Guard) mechanism is commonly employed to mitigate attack vectors based on forged ICMPv6 Router Advertisement messages. Many existing IPv6 deployments rely on RA-Guard as the first line of defense against the aforementioned attack vectors. However, some implementations of RA-Guard have been found to be prone to circumvention by employing IPv6 Extension Hea...