Sentence examples for became negative at from inspiring English sources

Five were still positive at day 30 and 9 became negative at day 30.

Two of the "unknown" patients developed T-cell positivity at one time point but then became negative at subsequent time points.

Moreover, the seropositive sera that became negative at 1 40 but positive at 1 4000 dilutions (7.34%, 16/218) indicate prozone phenomenon.

For example, a study from the US among HIV infected individuals whose contact history was unknown reported that a third of QFT-GIT test positive individuals became negative at 24 months and the conversion rate was only 9% [ 20].

We found larger effect estimates of cancer mortality at lags 0 and 1, which then decreased quickly and became negative at 2 to 7 lag days, depending on the component (Fig.  4).

Positive control samples (Kits B and C) became negative at a dilution of 1 128 in Kit B and 1 8 in Kit C. The VNT confirmed the ELISA results.

Under steady-state propagation conditions, some intrinsic cohesive models lead to unrealistic results as the crack opening velocity becomes negative at the cohesive zone tip.

As more serine-derived monomer is incorporated into the polymers, the specific rotation falls and becomes negative at 70% serine-derived monomer incorporation.

It is demonstrated that the EFC, as opposed to the SEA Coupling Loss Factor (CLF), can become negative at some frequencies.

The refractive index for RCP n R becomes negative at around 5.6 GHz.

Further, the option values become negative at electricity price below US$120/MWh.