We study the expected size of the 2D visibility complex of randomly distributed objects in the plane. We prove that the expected asymptotic number of free bitangents (which correspond to the 0-faces of the visibility complex) among unit discs or polygons of bounded aspect ratio is linear and exhibit bounds in terms of the density of the objects. We also make an experimental assessment of the si...

multiple sclerosis (ms) causes loss of the myelin sheath, which leads to loss of neurons. regeneration of myelin sheath stimulates axon regeneration and neurons’ survival. in this study, olfactory ensheathing cell (oec) transplantation is investigated to restore myelin sheath in an experimental model of ms in male mice.oecs were isolated from the olfactory mucosa of seven-day-old infant rats an...

In this study, we examined the relationships between employees’ negative internal attributions of their supervisors’ workplace decisions and organizational citizenship behavior (OCB) as mediated by adverse emotions. The present research also explores moderating role ethical climate (OEC) self-enhancement in OCB. Following two studies conducted on participants recruited from industry, suggest a ...

This study investigated Environmental Sustainability (ES) and Performance (EP) through the direct indirect use of Organizational Culture (OEC). focused on top managers, namely, CEOs directors SMEs, along with their middle managers. In this study, researchers employed green HRM Green Innovation (GI) as mediators. We applied a quantitative approach that utilized cross-sectional data collected fro...

In one of the final stages of cyanobacterial Photosystem II (PS II) assembly, binding of up to four extrinsic proteins to PS II stabilizes the oxygen-evolving complex (OEC). Growth of cyanobacterial mutants deficient in certain combinations of these thylakoid-lumen-associated polypeptides is sensitive to changes in environmental pH, despite the physical separation of the membrane-embedded PS II...

BACKGROUND Birdsong and human vocal communication are both complex behaviours which show striking similarities mainly thought to be present in the area of development and learning. Recent studies, however, suggest that there are also parallels in vocal production mechanisms. While it has been long thought that vocal tract filtering, as it occurs in human speech, only plays a minor role in birds...

Multiple Sclerosis (MS) causes loss of the myelin sheath, which leads to loss of neurons. Regeneration of myelin sheath stimulates axon regeneration and neurons' survival. In this study, olfactory ensheathing cell (OEC) transplantation is investigated to restore myelin sheath in an experimental model of MS in male mice.OECs were isolated from the olfactory mucosa of seven-day-old infant rats an...

BACKGROUND Endothelial progenitor cells (EPCs) are implicated in protection against vascular disease. However, studies using angiography alone have reported conflicting results when relating EPCs to epicardial coronary artery disease (CAD) severity. Moreover, the relationship between different EPC types and the coronary microcirculation is unknown. We therefore investigated the relationship bet...