English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

To remove a cognitive dissonance in interpersonal relations, people tend todivide our acquaintances into friendly and hostile parts, both groupsinternally friendly and mutually hostile. This process is modeled as anevolution towards the Heider balance. A set of differential equations have beenproposed and validated (Kulakowski {\it et al}, IJMPC 16 (2005) 707) to modelthe Heider dynamics of this social and psychological process. Here wegeneralize the model by including the initial asymmetry of the interprersonalrelations and the direct reciprocity effect which removes this asymmetry. Ourmodel is applied to the data on enmity and friendship in 37 school classes and4 groups of teachers in M\'exico. For each class, a stable balanced partitionis obtained into two groups. The gender structure of the groups revealsstronger gender segregation in younger classes, i.e. of age below 12 years, afact consistent with other general empirical results.

Heider balance, asymmetric ties, and gender segregation