Although concentrations of atrazine used for our focal experiments were high (10 35 mg/L) relative to background levels measured in the field, they were for short durations (< 2 days) and at the limit of reported water solubility for atrazine.
Another possibility is that the lower overall aggression levels observed in soil-treated focal ants (Experiment 2), which may have been caused by the ants' 24 h of isolation [40], masked differences in perception.
However, those results are in agreement with the findings of our focal degradation experiments on fibronectin.
Here we went beyond focal neurotransmitter gradient experiments to see how growth cones would respond to actual physiological stimulation of spatially displaced neurons.
In this experiment, the focal rats were given either a helping experience by an unknown third rat just before the test phase (generalised reciprocity [ 18]) using the same experimental setup, or they were not given a social experience (control).
In experiment, thermal focal length of Tm LuAG crystal was measured, firstly.
This suggests that the automated algorithm is often losing track of the focal insect during the experiment, resulting in shorter trajectories and ultimately loss of precision.
To study the robustness of the algorithms and their ability to discriminate between diffuse heterogeneity and a focal defect, a simulation experiment was performed using MATLAB, v 7.0 (Mathworks, Natick, MA, USA) on a standard personal computer platform.
In each pot, there was a central plant, which was the focal plant of the experiment.
The chicken β-actin-GFP mice used in the fusion experiment had focal expression of GFP in the prostate.
