Two homologous series of cyclically twinned sulphosalt structures are defined in the present paper, with different atomic configurations around the site of sixand threefold axes. The zinckenite homologous series, M6+x+N(N+S) A12+N(N+7), contains zinckenite, a Pb-Sb sulphosalt, and sulphohalogenides of Bi and Pb. The Ba Bi sulphide homologous series, M12+x+N(N+S) A18+N(N+7), contains complex sul...

A Vague Theory of Choice over Time We propose a novel approach to modelling time preferences, based on a cognitive shortcoming of human decision makers: the perception of future events becomes increasingly ‘blurred’ as the events are pushed further in time. We axiomatise a class of preference representations which can be specialised to rationalise ‘anomalies’ such as preference reversals and cy...

This paper studies children’s behavior in a prisoner’s dilemma game. I attempted to teach children cooperation by means of a short moral lecture. Over the period of 12 months, I experimented with 196 children between the ages of six and eleven. The experimental findings are as follows. (1) In support of the developmental psychology theories, the proportions of cooperation are indeed higher for ...

P. pestis AVG2 .... . 0.0 2.85 0.0 2.47 OX/AVG2 ........0.0 1.91 0.0 1.98 Siam ......... 0.0 2.14 0.0 OX/Siam.. 0.0 2.44 0.0 M23 .... 0.0 1.90 0.0 3.43 OX/M23..... 0.0 3.50 0.0 2.50 Yokohama.... 0.0 4.22 0.0 A12........... 0.0 1.78 0.0 Java......... 0.0 1.65 0.0 2.51 TRU .......... 0.0 1.78 0.0 2.29 P. pseudotutberculosis PBI/+.. 0.76 0.50 2.91 2.90 PBI/-.. 2.96 2.12 1.95 2.72 PTB J(2). 1.54 1....

In this study I present experimental evidence of a novel channel yielding inequality persistence. In an initial experiment, results suggest that individuals respond to salient inequality by adjusting their performance beliefs to justify the inequality. Subsequent experiments reveal: i) that it is beliefs about relative ability—an ostensibly stable trait— rather than effort provision that respon...