Interestingly, the fact that this element functions autonomously in a euchromatic context implies a ubiquitous rather than spatially restricted distribution of the transcriptional activator involved, which somewhat precludes a restricted role for this factor in mutually exclusive var activation.
In terrestrial ecosystems, criteria used for assessing risk of ecosystem collapse include declining or restricted distribution of ecosystems, degradation of the abiotic environment, changes in species composition and declining ecological function.
The results confirmed the taxonomically restricted distribution of repeat elements, as the fraction common to both coleopteran superfamilies is small (table 2).
In addition to the two prevailing strains, three separate strains were found in eastern Russia, pointing to the existence of geographically restricted distribution of some strains.
We found that resolution of acute infections involves efficient parasite clearance from most tissue types, including the heart and adipose, resulting in long-term persistent infections characterized by a highly restricted distribution of parasites.
Restricted distribution of the NQ rhodopsins to bacterial species in the classes Alphaproteobacteria, Cytophagia, Flavobacteriia, and Deinococci suggests the horizontal transfer of the encoding genes among bacteria inhabiting in the saline environments.
This might be related to specific cell membrane targeting of the viral glycoproteins as described in MV [ 23] or restricted distribution of the putative, yet unidentified, glial CDV receptor, perhaps similar to viral receptor clustering directing fusion in MV [ 35].
However, matched case-control studies create 2 problems: 1) coefficients for matched variables are essentially meaningless (or null), leading to distortion of risk predictions, and 2) the restricted distribution of matched variables means that discrimination appears reduced.
First, restricting the sample to healthy subjects leads to restricted distribution of scores and variances, therefore the results of a CFA might be significantly affected.
Results of research point to restrictions in root growth combined with a restricted distribution of roots in the soil.
The restricted distribution of P. rufuschaneyi cannot be easily explained.
