This study assessed the effect of qat chewing on periodontal health, independent of other risk factors. Four hundred qat chewers and 100 nonchewers (20-50 years) were included. Demographic data and detailed information about chewing and smoking were obtained. Periodontal status was assessed using Community Periodontal Index (CPI) and clinical attachment loss (CAL). The qat chewers were older, i...

There is also a lack of useful statistics for Scrabble players. James Cherry, author of an on-line Scrabble computer, simulated 5000 games and presented a body of statistics on it such as means, modes and standard deviations of winning game scores, aggregate game scores, highest scoring moves, number of bingoes per game, number of moves per game, and others. Statistics invaluable to wordgame pr...

The lysosomal carboxypeptidase A, Cathepsin A (CathA), is a serine protease with two distinct functions. CathA protects β-galactosidase and sialidase Neu1 against proteolytic degradation by forming a multienzyme complex and activates sialidase Neu1. CathA deficiency causes the lysosomal storage disease, galactosialidosis. These patients present with a broad range of clinical phenotypes, includi...