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To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ejor.2007.10.058 Byline: Yos Sunitiyoso (a), Shoji Matsumoto (b) Keywords: Travel behaviour; Mode choice; Social dilemma; Beliefs and expectations; Agent-based approach Abstract: This study attempts to apply an agent-based approach to modelling a social dilemma of travel mode choice considering psychological and sociological aspects. A traveller is modelled to have expectations, which shows the traveller's beliefs about the influence of other group members on his action, as decision-making rules. Social interaction using a group-based interaction is hypothesized to be important. We apply an imitation game based on social learning mechanisms to the model. Two kinds of mechanism are used: payoff-biased and conformist transmission. The model reveals the conditions that make cooperation as a possible outcome are optimistic bandwagon expectations, group-based interactions, and strong conformist transmissions. Author Affiliation: (a) Centre for Transport and Society, University of the West of England, Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, United Kingdom (b) Department of Civil and Environmental Engineering, Nagaoka University of Technology, Kamitomioka-machi 1603-1, Nagaoka, Niigata 940-2188, Japan Article History: Received 10 November 2006; Accepted 15 October 2007

Evidence for stepwise bond formation in the Diels-Alder reactions of fullerene (C60) with Danishefsky's diene is reported.

The photoaddition of ketene silyl acetals (KSA) to C60 by irradiation with visible light results in the formation of fullerenacetates. The process involves photoinduced electron transfer from ketene silyl acetals to the triplet state of C60. The quantum yield of the reaction is proportional to KSA(Si) concentration. Cyclic voltametry is used to analyze the negative shift observed in the one-electron reduction potentials.

Three kinds of crystalline (S)-alkylglycyl-(S)-phenylglycines are examined as potential dipeptides host molecules in terms of chiral recognition for racemic aryl methyl sulfoxides in the solid state. Two adjacent homochiral sulfoxides have made a pair having a 2-fold screw axis along the channel cavity and hence the self-recognition of sulfoxides has made [2.sub.1] helical column structures having high enantioselectivity.

A study was conducted to characterize a novel photochemical carbon skeletal rearrangement of alpha-hydroxymethylated alpha-beta-unsaturated carbonyl compounds. Substrates were determined using the Baylis-Hillman reaction of alpha,beta-unsaturated carbonyl compounds supporting aldehydes. Results indicated that the hydroxymethylenecyclopropanol had the role of a common intermediate in the rearrangement.