In addition, the diameters of borings in Cloudina are proportional to the sizes of specimens, which suggests that predators were selective about the size of their prey.
They were also present as discrete foci in ten normal small intestinal, colonic and rectal biopsy specimens, which suggests they contribute to the physiological intestinal cell population.
B holmesii was not detected in any of our NP specimens, which suggests that it may not be unnecessary to rule out B. holmesii for specimens that are positive for IS481 in the Alberta population.
In contrast to the other genotypes, most types of genetic variants for the least variable genotype E are represented by a single specimen, which suggests that the corresponding mutations are not being fixed.
This virus was not detected in any specimen, which suggests it is not a common respiratory pathogen.
It was detected by PCR in only 1 child, with S. pneumoniae in the same specimen, which suggests that C. pneumoniae is not a major cause of empyema in children.
Although ≈1,000 specimens each of A. variegatum and A. lepidum were collected and tested in that study, no isolates of Kupe virus were found in those species, which suggested that vector hosts for DUGV and Kupe virus may differ (3 ).
Inserting amino acids ensconced with a radioactive tracer into specimens that did not consume food for six months, Pierce showed that the tracer later appeared in the chlorophyll a molecules found in specimens exposed to sunlight, which suggested that the sea slugs were manufacturing the pigment themselves.
In contrast, NACC1 gene amplification was undetectable in all clear cell carcinoma specimens tested, which suggests that NAC1 in this histology may be regulated at the transcriptional level.
Although we did not exhaustively and systematically search for other potential infective causes of diarrhea, we identified enteropathogenic bacteria and parasites in <2% of specimens examined, which suggests that they were not major causes of diarrhea in our study population (data not shown).
