This recurrent and unavoidable cytoplasmic contamination has already been highlighted by several previous studies [ 8, 14- 19].
In contrast, in L6, lower stimulation intensities were often required to avoid contamination from recurrent and/or slow EPSCs.
This recurrent and unavoidable cytoplasmic contamination has already been highlighted by several previous studies of plant apoplast [ 18- 22].
Stimulation intensity was adjusted such that monosynaptic EPSCs were seen in both cells in all trials without contamination from recurrent inputs and slow, corticocortical EPSCs.
For nonminimal stimulation, intensity was set such that the peak amplitude of the field EPSP was around 0.1 0.2 mV as this consistently results in EPSCs to be evoked in the vast majority of recorded L4 cells with an almost invariant onset latency and rising phase without kinks, indicating monosynaptic EPSCs without contamination from recurrent excitation.
Biofilms constitute a potential source of chronic, recurrent infections and cross-contamination events [ 7, 89].
Bacterial contamination is a recurrent problem in moss tissue culture.
These multispecies biofilms are responsible for significant problems in many areas, such as the corrosion of liquid-carrying vessels, biofouling in drinking water distribution systems, contamination of food processing environments, persistent and recurrent infections and device-related infections in humans [4], [5], [6], [7], [8], [9], [10], [11].
Despite the results that showed that contamination by STEC in some markets was recurrent up to 4 rounds of sampling (Table 1), identity among isolations was not maintained.
58, 59 Although reported outbreaks in Lao PDR have all been food borne, contamination of water resources has been implicated with recurrent HEV epidemics in other parts of southeast Asia.
