Sentence examples for background level was observed from inspiring English sources

No significant difference in background level was observed.

In the presence of the enzyme alone no oxidation of this dialkylhydrazine above the background level was observed.

Importantly, Ad5-CRAD replication in only 1% of the cells resulted in a ∼50% decrease of CAR intensity in all cells, and a further decrease close to the background level was observed when 10% of the cells were infected (Figures 2A and 2C).

A significant increase in mutation yield over the background level was observed at fiber concentrations > 1 μg/cm (p < 0.005).

When the OsASNase2 sense probe was used, only weak signals as background level were observed (Fig. 3d).

Nevertheless, a decline to background levels was observed approximately three weeks immediately after the television campaign [ 16].

Using the filters described previously, no fluorescence above background levels was observed in either the acceptor or the donor channel.

When the 12.1 peptide was expressed as a free peptide, no activity over background levels was observed, while CI2-constrained 12.1 peptide activated p53 in approximately 25% of the transduced population.

However, only background levels are observed when the reporter construct is inserted into euchromatin where the w+ gene is fully expressed.

Even higher background levels were observed at ZT11.

As a control for non-specific binding, Q-PCR was conducted to detect transgene transcript levels in wild type cDNAs but only background levels were observed.