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September 18, 2026
When Pictures Hinder Understanding: Illustrations May Impede Learning of Abstract Ideas
Illustrations can help remember specific actions but do not always make abstract ideas easier to learn. Researchers from HSE University and Humboldt University compared how people learn from texts with different levels of abstractness. They found that participants remembered illustrations better and performed better on related tasks after reading a multimedia text about yoga asanas than after reading an abstract text about the Nash equilibrium. The findings could help improve the selection of illustrations for educational and informational materials. The study has been published in Learning and Instruction.
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Immunity to Chaos: How Personal Resources Help Us Cope with the Challenges of a Turbulent World
International conflicts, crises and digital overload—the modern world puts our minds to the test every day. Traditional psychology often focuses on the consequences: anxiety, depression, and psychosomatic disorders. But what if we looked at the problem differently—through the lens of the resources that prevent us from breaking down? Psychological immunity is precisely this set of resources. Alena Zolotareva and her group, Psychological Immunity as a Resource for Positive Functioning, are developing an integrative model of this phenomenon, adapting diagnostic tools and preparing for large-scale empirical research. Why do psychologists need to collaborate with medical professionals, and how could their research transform preventive care in clinics and corporations?

 

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Game-Theoretic Models of Coopetition in Cournot Oligopoly

Stats. 2023. Vol. 6. No. 2. P. 576–595.
Ougolnitsky G., Alexey Korolev

Coopetition means that in economic interactions, both competition and cooperation are
presented in the same time. We built and investigated analytically and numerically game theoretic
models of coopetition in normal form and in the form of characteristic function. The basic model
in normal form reflects competition between firms in Cournot oligopoly and their cooperation in
mutually profitable activities such as marketing, R&D, and environmental protection. Each firm
divides its resource between competition and cooperation. In the model in normal form we study
Nash and Stackelberg settings and compare the results. In cooperative setting we consider Neumann–
Morgenstern, Petrosyan–Zaccour, and Gromova–Petrosyan versions of characteristic functions and
calculate the respective Shapley values. The payoffs in all cases are compared, and the respective
conclusions about the relative efficiency of different ways of organization for separate agents and the
whole society are made.

Research target: Mathematics
Language: English
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DOI
Text on another site
Keywords: coopetitiongames in normal formCournot oligopolygames in the form of characteristic function
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