Pathophysiology The thoracic duct develops from outgrowths of the jugular lymphatic sacs and the cisterna chyli. During embryonic life, bilateral thoracic lymphatic channels are present, each attached in the neck to the corresponding jugular sac. As development progresses, the upper third of the right duct and the lower two-thirds of the left duct involute and close. The wide variation in the f...

Polysialic acid-containing glycoproteins consisting of extended chains of at least 55 sialyl residues (DP55, where DP represents degree of polymerization) are expressed on human neuroblastoma cells, CHP134. The strategy used for detecting these unique carbohydrate structures was based on the use of two highly specific prokaryotic-derived enzyme systems and an anti-polysialosyl antibody (H.46). ...

Density-functional theory has been applied to investigate systematics of sodium clusters Nan in the size range of n=39–55. A clear evolutionary trend in the growth of their ground-state geometries emerges. The clusters at the beginning of the series n=39–43 are symmetric and have partial icosahedral two-shell structure. The growth then goes through a series of disordered clusters n=44–52 where ...