A basic model of commitment is to convert a game in strategic form into a “leadership game” where one player commits to a strategy to which the other player chooses a best response, with payoffs as in the original game. This paper studies subgame perfect equilibria of such leadership games for the mixed extension of a finite game, where the leader commits to a mixed strategy. In a generic two-p...

The aim of this paper is to provide an analysis of the function of imperatives in dialogue. In particular, the focus is on the use of logically complex imperatives (e.g., ‘Say hello to John, if you meet him’) and temporal reference in imperatives (e.g., ‘Open the bottle of champagne at midnight’). Two specific problems involving logically complex and temporally referring imperatives are introdu...

Two studies tested whether children’s attitudinal ambivalence toward their parents is related to their attachment styles within relationships. Across both studies, children who were ambivalent toward their father were less securely attached in their relationships than were children who were nonambivalent toward their father. Study 1 also showed that the relation between attitudinal ambivalence ...

We introduce a declarative approach for a coherent composition of autonomous databases. For this we use ID-logic, a formalism that extends classical logic with inductive definitions. We consider ID-logic theories that express, at the same time, the two basic challenges in database composition problems: relating different schemas of the local databases to one global schema (schema integration) a...

Testosterone is thought to be positively associated with "mating effort", or the initiation and establishment of sexual relationships (Wingfield et al., 1990). Yet, because testosterone is negatively associated with nurturance (van Anders et al., 2011), high levels of testosterone may be incompatible with relationship maintenance. For instance, partnered men with high testosterone report lower ...

Although a great deal of attention has been paid to the role of people's own investment in promoting relationship commitment, less research has considered the possible role of the partner's investments. An experiment (Study 1) and two combined daily experience and longitudinal studies (Studies 2 and 3) documented that perceived investments from one partner motivate the other partner to further ...

The U.S. Army Reserve struggles with retention and faces difficulties with soldier turnover. The intent of the study was to assess key psychological variables such as optimism and hope to establish how those traits might impact soldiers' level of organizational commitment and turnover intention in the Army. The sample consisted of 124 U.S. soldiers selected from an Army Reserve unit in Houston,...

It has been proved earlier that the existence of bit commitment schema (blobs) implies the existence of sereknowledge proofs of information possession, which are MA-protocols (i.e. the verifier sends only independent random bits) [BrChCr], [GoMiWi]. In this paper we prove the converse result in a slightly modified form: We define a concept called veoHy zero-knowledge, which is like ordinary zer...

Comparison of the Effectiveness Couple Training Based on Approach Acceptance and Commitment (ACT) Imago therapy sexual intimacy in Couples