The phrase "active spreading of the" is correct and usable in written English.
It can be used in contexts discussing the dissemination or distribution of information, ideas, or phenomena.
Example: "The active spreading of the new policy was crucial for its successful implementation across the organization."
Alternatives: "proactive dissemination of" or "dynamic distribution of".
A certain amount of invagination does take place, assisted by an active spreading of the animal hemisphere of the embryo; as a result, the ectoderm covers the endodermal and mesodermal areas.
However, an approximate balance between decreased fitness of the host and active spreading of the parasitic element, combined with a complex population structure could lead to long persistence times without the homing cycle operating, especially when the selective disadvantage to the carrier and the mobility of the element were not the same in different subpopulations.
In other words, it is not simply a matter of weak purifying selection allowing active spread of the elements, but an effect of the element mutational dynamics introducing directional bias in the evolutionary process.
Given that the signs of respiratory disease reported in this study were those associated with the occurrence of respiratory disease in the previous two years, cows and pregnant heifers might have experienced disease caused by BRSV some time previously, following the active spread of the virus among youngstock detected in this study at the time of testing.
The very active systemic spreading of the silencing signal through the phloem was first observed in the solanaceous plants, tobacco and tomato [ 78, 79] and later demonstrated also for Arabidopsis [ 80].
At its northern terminus, the Sumatran Fault Zone links with submarine strike-slip faults that transform into the active spreading centers of the Andaman Sea (Curray et al. 1979), and at its southern terminus, it ends within the large pull-apart basin of the Sunda Strait (Baroux et al. 1998; Bellier and Sebrier 1995; McCaffrey 1991; McCarthy and Elders 1997; Sieh and Natawidjaja 2000).
The integration of these surfaces just above or below the active material allows spreading of the incident light, increasing the optical path of each light ray and, therefore, the probability of it being absorbed.
Tip accumulation of Myosin 1E increased as the lamellipodia moved forward in the contractile spreading phase and peaked at the end of active spreading (supplementary material Movie 1; Fig. 1H,I white arrows).
At the end of the Paleocene (∼60 55 Ma), the whole of East Asia underwent the subduction of the Izanagi-Pacific active spreading ridge (Whittaker et al. 2007; Zahirovic et al. 2014).
The active spread of EAV-HP in modern chickens is believed to involve a helper virus due to the numerous point mutations, deletions and insertions in EAV-HP sequences inactivating viral gene products [ 3], and that none of the proviruses found to date have been observed to produce infectious virions [ 2].
Data supporting the early increase in age of subducted oceanic crust during Franciscan history was first presented Murchey and Blake (1993), who proposed that this age pattern resulted from subduction of an active spreading ridge at ca. 170, followed by conversion to a transform margin until initiation of new subduction at ca. 150.
