This absence of data has restricted understanding of the magnitude and seriousness of this issue, which affects the development of effective approaches and strategies to stem the problem.
However, there is still restricted understanding of these adult stem cell populations and their properties.
In summary, our results demonstrate that long-tailed macaques seem to possess an at least restricted understanding of the causal influence objects can have on the spatial orientation of other covering objects.
It seems that long-tailed macaques possess at best a restricted understanding of the influence of the reward on the orientation of objects, which may not be extended to hollow objects.
However, sparse taxon sampling and use of low numbers of DNA markers in previous molecular-phylogenetic studies have led to restricted understanding of the classification and systematics within the group [ 9, 15].
It focuses on three issues: teachers' restricted understandings of assessment, teachers' emphasis on criteria that demonstrate concern with social control, and some of the problems connected with peer assessment.
However, little was known about the tissue- or developmental expression and the molecular structural information of Na+ channel subtype in hair cells, which extremely restricts the understanding of physiological mechanisms related to hearing development.
The lack of an appropriate retina-specific patient-reported outcome measure restricts our understanding of the full impact of these vitreoretinal diseases and their treatment on quality of life.
This limitation restricts our understanding of the extent to which and how cultures vary in their responses to disability, and the impact of these variations on children's development.
