Sentence examples for sample it is impossible from inspiring English sources

Therefore, when the D1a ITS2 DGGE fingerprint (with its companion D1 sequence) is detected in an endosymbiotic sample, it is impossible to distinguish whether these sequences represent intra-genomic variants of one cell type, or co-occurring populations of two Symbiodinium species, S. trenchi and S. glynni.

Statisticians point out that in a quota sample it is impossible to give each member of the universe a known chance of being selected, and one cannot therefore calculate the range of error in the results that could be due to chance.

However, since a different type of identifier was used in this second sample, it is impossible to link the assessments for a given client.

Because we put the mirror (reflector) as a sample, it is impossible to correct the system aberrations with this double pass configuration.

Since we do not have pre- or early post-deployment data on this clinical sample it is impossible to say if the service members have worsened over time, if their condition has always been poor, or if those who were seen further from their deployment date simply had a higher threshold for seeking care in the face of symptoms.

As hepatic biopsies were not performed on youth in this sample, it is impossible to rule out the presence of NAFLD in those with >5.5 % liver fat (i.e. hepatic steatosis) using single voxel MR spectroscopy, potentially skewing the thresholds for liver transaminases upwards.

However, as the SWF dataset only comprises 2,490 malicious samples, it is impossible to accurately quantify the potential for improvement.

Given the limited taxon and species sampling it is impossible to identify lineage-specific duplication and loss events.

Given that the relative distribution of deletion clone size is unknown and appears to vary between samples, it is impossible to impartially normalize the existing data through any calculation.

While the morphologically intermediate animals (Fig.  1) are legitimate hybrids, without tissue samples, it is impossible to determine which parent pertained to which species, and we also cannot be certain whether the hybrids are F1 or F2 hybrids.

We found only a few Ki67+ endothelial cells; no other SVZ cells were labeled in either Subject 1 or Subject 2. As with all end-state fixed tissue samples, it is impossible to determine whether any differences in cycling cells may have existed at earlier time points for the two subjects.