Research & Expertise

Researchers predict that this summer, the planet may once again approach its maximum rotation speed. The causes of this acceleration are not fully understood, and there is still no definitive scientific explanation. Leonid Zotov, Professor at the School of Applied Mathematics, MIEM HSE, notes that if, in the past, the so-called ‘leap second’ was added on New Year’s Eve, then for the first time in history, the question has arisen about whether it is time to subtract one.

For the first time, psycholinguists from the HSE Centre for Language and Brain, in collaboration with colleagues from the USA and Germany, recorded eye movements during a test to assess narrative skills in young children and adults. The researchers found that story comprehension depends on plot structure, and that children aged five to six tend to struggle with questions about protagonists' internal states. The study findings have been published in the Journal of Experimental Child Psychology.

In dynamic games, a Markov equilibrium involves strategies that guide players' behaviour based on the current state of the game, rather than its entire history. This approach is effective when players have access to complete information. But when uncertainty arises in the game—for instance, when players are unsure of who they are dealing with—this approach can become problematic. Eric Maskin, Nobel Laureate in Economics and Professor at Harvard University, addressed this issue in a paper presented at the XXV Yasin (April) International Academic Conference on Economic and Social Development held at HSE University from April 15 to 18, 2025.

Russians with children feel happier than those without children. At the same time, the number of children influences the assessment of happiness: the more children Russians have, the happier they feel. These conclusions were outlined inthe report ‘More Children, More Happiness: The Impact of the Number of Children on Russians’ Assessment of Happiness,’ presented at the XXV Yasin (April) International Academic Conference on Economic and Social Development, held on April 15–18 at HSE University. The study was conducted by Elena Churilova, Senior Research Fellow, and Dmitry Jdanov, Chief Research Fellowat HSE International Laboratory for Population and Health.

HSE University and the Centre for International Policy Research (Qatar) have agreed to collaborate in the field of social sciences, with plans for joint research, academic exchanges, and regular expert engagement. The agreement was signed during the roundtable ‘State Capacity and State Resilience in the Global South,’ held as part of the 25th Yasin (April) International Academic Conference at HSE University.

Physicists from the Institute of Spectroscopy of the Russian Academy of Sciences and HSE University have successfully trapped rubidium-87 atoms for over four seconds. Their method can help improve the accuracy of quantum sensors, where both the number of trapped atoms and the trapping time are crucial. Such quantum systems are used to study dark matter, refine navigation systems, and aid in mineral exploration. The study findings have been published in the Journal of Experimental and Theoretical Physics Letters.

Researchers have proposed using polymer membranes modified with copper, zinc, and chromium metal ions for water purification. These polymers were used for the first time in water purification via electrodialysis. Copper-based membranes demonstrated record selectivity for monovalent ions, opening new possibilities for sustainable water recycling. The study has been published in the Journal of Membrane Science. 

HSE University and the University of Delhi (India), in partnership with Geoscan (a portfolio company of the Innopraktika non-state development institute), have agreed to establish an international scientific mirror laboratory on data storage, processing, and transmission in space systems. The agreement was signed on January 15, 2025, during a visit to India by an HSE University delegation led by Rector Nikita Anisimov.