From the view of information accumulation, the dissemination of web-based information is essentially the process of increasing the amount of information on the Internet. The dissemination of positive and negative information will always follow the Matthew Effect. In this paper, we simulated the dissemination process of a crisis information using the basic model of Matthew— polya, and explained ...

Thoracic actinomycosis is an uncommon disease and often presents difficulty in diagnosis. Two cases are presented in which thoracic actinomycosis produced fistulae between the thoracic and abdominal cavities. Surgical drainage and high dose penicillin for at least 4-6 months was the treatment of choice.