Research on social exclusion suggests an increased attention of excluded persons to subtle social cues. In one study (N= 32), published inPsychological Science,Bernstein et al. (2008)provided evidence for this idea by showing that participants in the social exclusion condition were better in correctly categorizing a target person’s smile as real or fake. Although highly cited, this finding has never been directly replicated. The present study aimed to fill that gap. 201 participants (79.1% female) were randomly assigned to a social exclusion, (...) social inclusion or control condition. Next, participants watched 20 videos of smiling persons and rated whether they show a real or a fake smile. In line with the original study, results showed that participants in the exclusion condition performed better than in the control condition. However, the performance did not differ between the exclusion and inclusion condition—although the pattern was in the predicted direction. In sum, the findings of our study increase rather than decrease confidence in the validity of the investigated idea, but results point to a substantially smaller effect. (shrink)

Among the many works devoted to Copernicus's five hundredth anniversary, the article published here, by the German scientist H.-J. Treder, occupies a special place in the world literature on this subject thanks to its depth of analysis of Copernican concepts. Its author, a member of the Academy of Sciences of the GDR and Director of the Potsdam Astronomical Observatory, is known for his works on Einstein's relativity and gravitation theories. His understanding of Einstein's theory is entirely in accord with the (...) viewpoint advanced in my book The Theory of Space, Time, and Gravitation [Teoriia prostranstva, vremeni i tiagoteniia] , and he cites it repeatedly. In particular, we ascribe major and fundamental significance to the fact that Einstein's gravitation equations require for their solution certain limiting conditions which Einstein's theory, however, does not provide. In order to fill this theoretical gap, it is necessary to introduce certain supplemental hypotheses of a geometrical character concerning space as a whole. Treder very ingeniously demonstrates the similarity between these hypotheses and the ideas of Copernicus. (shrink)