tical pathfinding. Thus, axons from the VL, which nor-domain protein control of the expression of EphA recep-mally project to the rostral cortex (motor cortex), target tor and ephrin-A ligands in motor neurons and limb mes-instead the parietal cortex (somatosensory cortex; cau-enchymal cells, respectively. It will be of interest to see dal to the motor cortex) in the absence of ephrin-A5 and wh...

MicroRNAs (miRNAs) are a class of short non-coding RNAs that bind mRNAs through partial base-pair complementarity with their target genes, resulting in post-transcriptional repression of gene expression. The role of miRNAs in controlling aging processes has been uncovered recently with the discovery of miRNAs that regulate lifespan in the nematode Caenorhabditis elegans through insulin and insu...

Netrins, a family of laminin-related proteins, were originally identified as axonal guidance molecules. Subsequently, netrins were found to modulate various biological processes including morphogenesis, tumorogenesis, adhesion, and, recently, angiogenesis. In human placenta, the most vascularized organ, the presence of netrins has also been reported. Recent studies demonstrated the involvement ...

MOTIVATION Eukaryotic gene expression is controlled through molecular logic circuits that combine regulatory signals of many different factors. In particular, complexation of transcription factors (TFs) and other regulatory proteins is a prevailing and highly conserved mechanism of signal integration within critical regulatory pathways and enables us to infer controlled genes as well as the exe...

mass media have outstanding roles in forming and processing of the social structure of reality. although there are different concepts and methods used for making researches relevent to this issue, two main approaches are of the great importance that from the beginning have drawn the researcher's full attention to themselves. the first one, analyzes the aspects of the relations between cult...

The paper presents an inventory of the activities elderly before and after retirement. objectives this are: to identify analyse retirement; dynamics elderly’s roles; build intervention plans in relation correlation with roles played by them. interview is method used data collection results are obtained from qualitative analysis data: answers, their classification into categories, coding answers...