However, the frequency with which they are observed, even with disparate genotyping technologies, suggest that there may be an underlying biological process responsible for some of these tight double recombinations (Sybenga 1996; Broman et al. 1998).
These contractile impairments were caused by stable modification(s) since they were observed even after isolation of myofibrils and single-muscle fibres, and the contractile impairments in the latter preparation were not affected by subsequent exposures to an oxidising (t-BuOOH) or a reducing (DTT) agent.
This means that noctilucent clouds form predominantly during summer when, counterintuitively, the mesosphere is coldest, therefore they can't be observed (even if they are present) inside the Polar circles because the Sun is never low enough under the horizon at this season at these latitudes.
Such structural modifications are supposed to occur relatively early during the learning process of new motor skills, since they have been observed even after seven days of daily training [5].
On the second level are imaginary cases which cannot be observed, even though they belong to the natural order.
The α-S8(bulk) crystal has a large birefringence (0.29) that can be observed, even if they are only 0.5 μm thick [17],[17].
When two cognitive tasks are presented and executed within a short interval different manifestations of interference have been observed, even when they involve distinct sensory and motor modalities.
The structural state of the material is classified as good, and surface morphology is retained for many of the specimens (i.e., no plastic deformation has been observed), even though they were water logged and friable at recovery.
However, the categories were mutually exclusive and, similar to the oncologic literature (16), periods of remission were categorized by the most advanced category observed even though they also qualified for a less advanced stage (i.e., prolonged remission is more advanced than complete remission, and complete remission is more advanced than partial remission).
Sieghart et al. [ 9] showed that the tumor specimens overexpressed Mcl-1 in HCC patients; however, in paired samples of nontumor liver tissue adjacent to HCC, no positive staining was observed even if they were directly neighbouring tumor tissue, suggesting that the overexpression of Mcl-1 is tumor specific.
