Against all the odds, therein lies the good news (of sorts) for Houston: If the Rasberry ants succeed as well as their cousins did in Biosphere 2, they will wipe out the city's population of fire ants, or as the A.P. calls them, "the stinging red terrors of Texas summers".
As the test is not yet used in a large population of fire fighters in the Netherlands, the exact scoring method has not yet been developed and stipulated.
One example is the absence of Wolbachia in invasive populations of fire ants in North America, but presence of infections in source populations in South America [5].
Therefore, we evaluated the reliability, agreement and construct validity of the fire fighting simulation test in a population of Dutch fire fighters in this study.
While evaluating the genetic structure in introduced population of the fire ant, Solenopsis invicta (Buren) using different classes of markers, it was confirmed that both mitochondrial and nuclear markers display the same hierarchical structure [ 28].
This is relatively easy with the membrane potential and currents for a patched cell, but not for a population of heterogeneously firing cells.
The linear component of the fitting signal may arise from a second population of pHLIP-FIRE, in which some other mechanism is involved, such as nonspecific endocytotic uptake of the constructs, producing slow kinetics.
This would result in the population of synchronously firing pyramidal cells that would otherwise generate ripple activity splitting into smaller neuronal assemblies each generating independent ripple activity, which collectively result in higher-frequency, lower-amplitude ripples.
In population vector models the relevant sensory information is derived directly from the neuronal firing rate, which is considered as the "weight" of a neuron in a global population vector of firing rates (Vogels 1990; Seung and Sompolinsky 1993).
North American populations of the fire ant Solenopsis invicta, which were established by presumably small founding populations due to human transport, are devoid of Wolbachia, whereas South American source populations show infection polymorphisms [43], [44].
We sequenced a portion of the wsp gene from the Wolbachia genome infecting 138 individuals from eleven geographically distributed native populations of the fire ant Solenopsis invicta.
