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Effects of Saving and Spending Patterns on Holding Time Distribution
The effects of saving and spending patterns on holding time distribution of
money are investigated based on the ideal gas-like models. We show the
steady-state distribution obeys an exponential law when the saving factor is
set uniformly, and a power law when the saving factor is set diversely. The
power distribution can also be obtained by proposing a new model where the
preferential spending behavior is considered. The association of the
distribution with the probability of money to be exchanged has also been
discussed.Comment: 9 pages, 6 figure
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A nodule on the forearm
Glomus tumors are benign tumors of the skin. Clinically, these tumors can present as solid, painful subcutaneous nodules, frequently seen on the hand (particularly subungual region). Glomangiomyomas are the least common histological type of glomus tumor. In the literature, there are only a few glomangiomyoma cases of the forearm location. We report a patient with a painful nodule, diagnosed as glomangiomyoma. Surgical excision was performed and no recurrence was observed after 5 years' follow-up
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