Monolayers of the lipopeptide mycosubtilin are studied at the air/water interface. Their structure is investigated using molecular dynamics simulations. All-atom models suggest that the lipopeptide is flexible and aggregates at the interface. To achieve simulation times of several microseconds, a coarse-grained (CG) model based on the MARTINI force field was also used. These CG simulations desc...

As the social sciences deal with macrophenomena which are caused by individual human actions, they have to use a theory of human behaviour. They use basically three types of theory: the rational-utilitarian theory, the causalist theory which sees behaviour as caused by social, cultural or biological forces, and the «rational psychology» in Nisbet’s sense. The three theories are important in the...

Despite their distinct objects of study, the human behavioral sciences all include models of individual human behavior. Unity in the behavioral sciences requires that there be a common underlying model of individual human behavior, specialized and enriched to meet the particular needs of each discipline. Such unity does not exist, and cannot be easily attained, since the various disciplines hav...

This paper argues for a closer association between economics and sociology. The latter could benefit from the intellectual rigour of the former. Building a unified socio-economics requires an intellectual rapprochement between the sociologist conception of social interaction and a relaxed version of rational choice. Evolutionary game theory may provide

In the Fall of 1996, the Canadian Government issued a request for a study on the feasibility of strengthening the Data Encryption Standard (DES) by increasing the key length to 80 bits. What made this request both interesting and challenging was the overall constraint placed on the project: there was to be no change whatsoever made to the actual encryption / decryption algorithm; rather, change...