Bending tests involve complex internal stress fields and produce results that are influenced by the testing skill and orientation of the specimen and 3- and 4-point bending tests present technical difficulties associated with sample positioning and the subsequent data analysis with irregular samples such as these.
However, it is often suggested that chi-square is overpowered in large samples such as these, hence alternatives have been suggested.
With samples such as these, the ability to conduct a linear amplification of the target mRNA becomes imperative, to ensure that enough material is available for gene expression analysis.
As pointed out by others, there is a genuine need to develop other isolation and culture techniques to study both the dominant virus populations and the true extent of archaeal virus variation in samples such as these – perhaps using a combination of electron microscopy and metagenomic sequence studies.
Noninvasive sampling, such as through urinalysis or analysis of exhaled breath, could lead to increased acceptance of screening programs.
Characteristics of the sample such as the sample mean, the sample variance, and the sample proportion are called sample statistics.
To the extent that he does rap, he often does so over samples such as the theme song from the animated TV show "Rugrats".
Conversely, the impossibility of random sampling sometimes necessitates nonprobability sampling, such as convenience sampling or snowball sampling.
Convenience sampling, such as arbitrary recruitment or non-consecutive recruitment was deemed inadequate.
The Xpert MTB/RIF assay provides a substantially higher sensitivity than sputum smear microscopy for TB diagnosis during active screening of patients with advanced HIV-associated immunodeficiency [ 57] and can also be used to screen non-respiratory samples, such as urine, from these patients [ 58].
