Signatures of interaction are then used to localize elements in space and to construct data structures that characterize spatial properties of space, called signatures of places and signatures of presence.
There are two fundamental kinds of processes that may affect the global functional structure which should be taken into account in our study: the internal metabolic activities of the cells during the growth conditions and the different metabolic structures that characterize the distinct cell types.
Concurrent with genome duplication, the protein components of chromatin are disassembled and re-assembled throughout the S phase into higher order structures that characterize the specific gene expression status of daughter cells (Alabert and Groth, 2012; Budhavarapu et al., 2013).
A first look at the plots reveals the lower energy of the peaks as compared to the energy in the LAS plot of Fig. 5, probably due to less coherent structures that characterize the Time Latitude plots of Fig. 4.
On the other hand, the apparent origin of complex structures, that characterize all descendents from a certain moment of evolution, might have occurred simultaneously to the specialization of gene groups.
We tested this supposition by using 20-hpf zebrafish transgenic embryos, whose PGCs express either EGFP on their plasma membrane or DsRed in the perinuclear structures that characterize PGCs.
Many studies support the concept that neutrophils may significantly contribute to chronic inflammation and alterations in airway structure that characterize asthma.
In this paper, we examine the assumptions underlying the framework, beginning with the assumption that it is such substantive universals that are in need of explanation rather than the rich diversity of phonological systems observed across human cultures and the compositional (prosodic) structure that characterizes signed as well as spoken languages.
The goal of this work is to provide a method to identify user roles in inter-personal communication dynamics, leveraging information about network topology and, in particular the community structure that characterizes online social networks like Facebook and Twitter [29], [30].
