Results 111 to 120 of about 6,859 (261)

A smart mask to enforce social contracts based on IOTA Tangle.

open access: yesPLoS ONE
In this paper we present the design for a smart-mask to mitigate the impact of an airborne virus such as COVID-19. The design utilises recent results from feedback control theory over a distributed ledger that have been developed to enforce compliance in
Lianna Zhao   +2 more
doaj   +1 more source

Competition and payments to African chiefs on the Gold Coast during the slave trade, 1679‒1704

open access: yesThe Economic History Review, EarlyView.
Abstract The manuscript records of the Royal African Company show that the Company paid African chiefs for access to trade along the caravan routes on the Gold Coast in the seventeenth century. This paper documents and examines these payments. Using an event study, I establish that after the Glorious Revolution in 1688 when the Company's monopoly in ...
Jose Rowell Corpuz
wiley   +1 more source

The slow emergence of the rational investor: Grain markets and grain storage of rural estates in western Germany, eighteenth and early nineteenth centuries

open access: yesThe Economic History Review, EarlyView.
Abstract We develop new datasets of monthly grain prices in 14 urban markets and of the storage and marketing of grain by 5 rural estates located in western Germany between the late seventeenth century and c. 1860. We explore whether observed patterns of monthly prices, sales, and storage of grain are consistent with the rational competitive storage ...
Matthias Hartermann   +2 more
wiley   +1 more source

The Effects of Trial Number and Individual Differences in Exploration on Fish Performance in an Object Location Recognition Task

open access: yesEthology, EarlyView.
This study investigated the behavioral response of common minnows (Phoxinus phoxinus) to repeated exposures of the sample phase of an object location task, and the influence of individual behavioral type on cognitive performance. The group exposed to the most sample trials were the only group that learned the task showing significant discrimination ...
Cairsty DePasquale   +3 more
wiley   +1 more source

LIABILITIES ASSOCIATED WITH DISTRIBUTED LEDGERS: A COMPARATIVE ANALYSIS

open access: diamond, 2019
Dirk Andreas Zetzsche   +3 more
openalex   +1 more source

Home - About - Disclaimer - Privacy