Robert J. Watson

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BACKGROUND Photorhabdus are Gram negative bacteria that are pathogenic to insect larvae whilst also having a mutualistic interaction with nematodes from the family Heterorhabditis. Iron is an essential nutrient and bacteria have different mechanisms for obtaining both the ferrous (Fe2+) and ferric (Fe3+) forms of this metal from their environments. In this(More)
This paper presents the results of a study into the modeling and prediction of rain-induced bistatic scattering at 60 GHz. The bistatic radar equation together with Mie theory is applied as the basis for calculating the scattering. Together with the attenuation induced by the medium before and after scattering, the received scattered power can be calculated(More)
Zika virus (ZIKV) is a mosquito-borne pathogen which has recently spread beyond Africa and into Pacific and South American regions. Despite first being detected in 1947, very little information is known about the virus, and its spread has been associated with increases in Guillain-Barre syndrome and microcephaly. There are currently no known vaccines or(More)
resolution simulation of TV white space availability and model validation. from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted(More)
In this paper we present performance measurement methodologies for database systems. The methodologies are used to instrument a database system for t,esting and measurement. There are two types of testing and measurements. External performance measurement is used to test the database system from a macroscopic point of view. Thus, in the external performance(More)
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