Two cases of multiple foreign bodies, i. e., duplex coins in the esophagus are reported. These foreign bodies were removed by peroral esophagoscopy successfully. Significance of roentgenray diagnosis is emphasized, and subtle and yet specific roentgenograms of duplex coins in the esophagus are illustrated. ∗PMID: 4254202 [PubMed indexed for MEDLINE] Copyright c ©OKAYAMA UNIVERSITY MEDICAL SCHOO...

This paper describes the coins (COnstraint-based INteractive Solving) system: a conflict-based constraint solver. It helps understanding inconsistencies, simulates constraint additions and/or retractions (without any propagation), determines if a given constraint belongs to a conflict and provides diagnosis tools (eg. why variable v cannot take value val). coins also uses user-friendly represen...

We investigate a coin-weighing puzzle that appeared in the all-Russian Mathematics Olympiad in 2000. The methods of analysis differ from classical coin-weighing puzzles. We generalize the puzzle by varying the number of participating coins, and deduce a complete solution. Perhaps surprisingly, the objective can be achieved in no more than two weighings regardless of the number of coins involved.

This overview on Sasanian stuccoes includes the Parthian sites hinting at a transmission of iconographies (i.e., Qaleh-I Zohak and Yazdgird), also with uncertain chronological attribution. On one hand, it underlines lack within Iranian plateau, other how majority was found in western territories. Noteworthy is examination illustrations some archaeological discoveries, i.e., Barz Qavela, Qela Go...

We establish fun parallels between coin-weighing puzzles and knights-