Congenital Segmental Dilatation of Ascending Colon with Distal Microcolon: A Diagnostic Dilemma.

A 5-day-old male presented with bilious vomiting, a grossly distended abdomen, and passage of a small amount of stool. The anal opening was at a normal position. X-ray abdomen showed a large bowel loop with a single air-fluid level occupying more than half of the abdominal width.

Distal duodenal web with malrotation: An unusual finding.

The most common site of the congenital duodenal web is the second part. Web distal to the second part of the duodenum is rare. It mimics the windsock deformity.

Control over product formation and thermodynamic stability of thiolate-protected gold nanoclusters through tuning of surface protecting ligands.

Surface-protecting ligands can regulate the structure of a cluster's core either through electronic or steric effects. However, the influence of the steric effect along with the electronic effect over controlling the structure during ligand exchange reactions remains elusive. To understand this, we have carried out ligand exchange on [Au(CHT)] (CHT: cyclohexane thiol) using aromatic thiolates where we have tuned the bulkiness at the position of the thiolate group on the incoming ligands.