Sentence examples for only become positive from inspiring English sources

The bad news is Bush still has the worst job creation record of any president since Hoover, and the numbers have only become positive in the last few months.

The most sensitive is IgG ELISA with an 83% sensitivity [ 10] although this test may only become positive after cyst rupture [ 11].

Considering that the histology results are negative for phosphorylated alpha-synuclein at 3 months post injection and only become positive at 6 months post injection for animals injected with patient brain extracts, this assay likely detects de novo generated seeds.

Experimental studies in animals have shown that when microhemorrhages occur or when there is CNS trauma, microglia not only become positive for ferritin they also become dystrophic [ 143, 144].

While the thermal camera use did clearly show a positive effect on reducing suppression costs, the NPV only became positive for thermal camera use, when used for at least 17 fires per year by the 10th year, or; at 18 and 19 fires per year (at year 9), or at 20 fires per year (at year 8).

Since patient recruitment was based on blood culture, which only became positive the following day, no samples for PTX3 were available on day 0 (blood culture day).

Thereafter it is likely that the result is negative during each peak of healthy parasites covered by a new type of surface antigen, and only becomes positive when the immune system has caught up and produced the appropriate antibody, causing the death of this particular trypanosome variant, and thus the release of internal antigens.

Results: analysis of all CMV-infected recipients (n=28) showed that in 16 recipients (group I) more than one direct test became positive after transplantation, while in the other 12 recipients (group II), IE1-NASBA was the only direct test to become positive.

The EEG has been shown to become positive usually only in the late stages of the disease.

As an example, in Adventfjord close to Longyearbyen the mean air temperature in June 2011 was 4.8°C [ 40] but the soil temperature at 5 mm depth only first became positive from 7th June.

In ACPA-negative patients at baseline only 2% became positive for ACPA after one year follow up.