Periodical Topics

Of Recent Periodical Literature

The demography of Sandwich in this period has attracted attention from previous historians but has not been systematically studied. This article goes some way towards rectifying this situation by tracing the town’s growth from c. 1,500–1,700 in the mid-sixteenth century to c. 5,500 by 1610, population growth ending during the 1630s after which decline set in, the 1671 Hearth Tax suggesting a po...

The Polanyi Society Periodical

A Periodical of Particle Physics

Life Cycle in Periodical Cicadas

-Several lines of evidence suggest that the 13-year life cycle is genetically dominant over the 17-year life cycle in periodical cicadas. They are: (1) 13-year dominance best predicts the decline of 17 -year Brood X, and concomitant increase in Brood XIX in the midwest, following a hypothesized 1868 hybridization with 13-year Brood XIX through assimilation of heterozygotes into Brood XIX; (2) t...

Periodical Multi-secret Threshold Cryptosystems

A periodical multi-secret threshold cryptosystem enables a sender to encrypt a message by using a cyclical sequence of keys which are shared by n parties and periodically updated. The same keys appear in the same order in each cycle, and thus any subset of t + 1 parties can decrypt the message only in the periodical time-frames, while no subset of t corrupted parties can control the system (in ...