The directionality of this flow is determined by an extrinsic cue, the entry of the sperm, which inhibits Rho-dependent myosin activation at the future posterior pole by bringing with it the Rho GTPase activating protein CYK-4.
Directionality of the genetic flow, at such ancient scales, cannot be spotted with this technique.
The deep understanding of the energy transfer mechanisms and of the strategies for governing the directionality of the energy flow in artificial multichromophoric arrays is at the basis of their use in demanding fields such as solar energy conversion and optoelectronic applications.
Moreover, using concepts derived from geographical segregation, the methodology in [13] is able to infer the directionality of the information flow.
In directed networks, the information on the directionality of the information flow is retained.
Furthermore, it draws attention to the directionality of the information flow, and the adequacy of the information exchange between different institutional actors, whether pertaining to the same body or not (e.g., immigration office, inter-force police unit, managing body, NGOs).
Due to the particular configuration of cells along the microvasculature and the directionality of flow through the lobular units, various chemical gradients and microenvironments are present (Smith and Wills, 1981; Ugele et al., 1991; Gebhardt, 1992).
To further investigate the directionality of information flow in the aPN1-vPN1-pC1 pathway, we have used DenMark and Syt::GFP for post- and pre-synaptic labeling of vPN1 and pC1 neurons, respectively.
Directionality of the predominant information flow from PMv to M1 was also supported by a feed-forward model validated on fMRI data acquired during performance of a grasping task (Grol et al., 2007) and paired-pulse TMS studies (Davare et al., 2008; Buch et al., 2010).
