Sentence examples for difficulties of selection from inspiring English sources

The neutral theory was appealing because it overcame two apparent difficulties of selection, the problem of high genetic loads when many loci are changing, and the problem that the evolutionary rates of individual proteins seemed to be constant.

In summary, we acknowledge the common difficulty of selection bias in this type of research and we attempted to control for obvious individual patient selection bias, while recognizing the limits of generalization imposed by the sample.

However, due to the scarcity of drought and salt tolerance alleles in the peanut gene pool, the quantitative nature of abiotic stress tolerance, and the difficulty of selection, peanut stress resistance breeding can be a time consuming, labor-intensive, and difficult process [ 6].

Instead even options unavailable for choice (which could not affect the difficulty of choice selection) affected activity.

Activity in the ACC could not be explained by the hypothesis that only options available for choice (and which might therefore affect the difficulty of choice selection) determined activity levels.

Given the intrinsic difficulties of interpreting selection mapping data, additional tools, such as genome-wide association studies based on high throughput genotyping or whole-genome sequencing data obtained from large reference populations, will be indispensable to uncover the biological meaning of selective sweep signatures.

Regardless of these difficulties, genomic studies of selection provide valuable information about genes encoding for phenotypes of interest (e.g., drug resistance) or allow making inferences about selected phenotypes that were not originally considered (Escalante et al. 2004; Pollard et al. 2006; Nielsen et al. 2007).

The proposed modifications help to overcome the limitations of the original Metropolis–Hasting algorithm used in the subset simulation which include the "burn-in problem" and the difficulty of the selection of the proposal probability function.

Problems such as the difficulty of the selection of technical parameters and the large quantity of experimental work, exist in the forming of composite tubes or bars by the semi-solid extrusion process.

An article on Thursday about the difficulty of jury selection for a court case against Fred Wilpon and Saul Katz, the owners of the Mets, who have been accused of running the team with illegitimate profits from Bernard L. Madoff's Ponzi scheme, referred incorrectly to the size of the jury.

However, the main problem of the feature-enhanced algorithm for radar imaging lies in the difficulty of parameter selection.