Sentence examples for been observed before for from inspiring English sources
Characteristic changes in peak formation profiles have in fact been observed before, for example, the study by Crawford et al. [ 19].
Excessive variability of data on mtDNA deletions has been observed before, for example Meissner et al., 2008, but have never been duly explored.
The zero delay peak is clearly below 50%, as has been observed before for antenna-enhanced emission from monomeric dye molecules and single quantum dots29,31,32.
Salt addition to the completely urea unfolded HCA II also led to an aggregation prone unfolded state, that has not been observed before for carbonic anhydrase.
It is worth noting that such excellent compressive behavior has never been observed before for any crystalline or glassy structured material.
Increasing the pyrolysis temperature has an opposite effect on the low-C and high-C materials: for the latter one the reversible capacity decreases following a known trend while the former shows an increase of the reversible capacity which has never been observed before for similar materials.
For a few proteins, this intranucleolar localisation has been observed before, e.g. for SUMO1, CRM1, CDC5L, coilin and splicing snRNPs (Ajuh et al. 2001; Desterro et al. 2005; Ernoult-Lange et al. 2009; Lyon et al. 1997; Sleeman et al. 1998; Sleeman and Lamond 1999); however, the conditions of their intranucleolar localisation and dynamics have not been characterized in detail.
Since the findings reported here have not been observed before, we call for further studies to elucidate further the relationship between self-esteem and smoking behavior.
Our sequence and structure analysis suggest that all REM B3 domains display the family's characteristics fold, as it was observed before for REM 14.
Similar results were observed before for dre-mir-129*, dre-mir-142a*, dre-mir-142b* and dre-mir-214* [ 20].
An elevated rate of glycolysis was observed before for various viruses [ 15- 18, 20- 27, 27, 30], including influenza virus [ 14, 33].
