Microlasers with Quantum Dots Remain Functional at Elevated Temperatures
Researchers from the HSE International Laboratory of Quantum Optoelectronics in St Petersburg have explored the impact of resonator size on the operating temperature of a microdisk laser with quantum dots in a two-level generation mode. Their findings reveal that microlasers can produce radiation across multiple frequencies, even under elevated temperatures. In the future, this breakthrough will enable the integration of microlasers into photonic circuits, potentially doubling information transmission capabilities. The study findings have been published in Nanomaterials.
HSE Researchers Study Emerging Adulthood in Russia
Sociology today distinguishes more developmental stages of growing up than just childhood, adolescence, and early adulthood, as commemorated in Leo Tolstoy’s trilogy Childhood, Boyhood, Youth. For the past two decades, sociologists have been exploring the concept of emerging adulthood, a transitional stage that occurs between adolescence and early adulthood. Researchers at the HSE Institute of Education have discovered that in Russia, one out of every two young respondents, with females more frequently than males, falls within the emerging adult category. The study findings have been published in Emerging Adulthood.
Russian Researchers ‘Peek Inside’ Carbon Nanopores
Researchers from HSE MIEM, in collaboration with colleagues at the RAS Institute of Solution Chemistry, have modelled the behaviour of ionic liquids within charged carbon nanopores ranging in width from 1 to 15 nm and assessed the mobility of both their cations and anions. The scientists observed that an increase in anion size resulted in higher mobility, whereas cations exhibited the opposite trend of reduced mobility with an increase in size. A better understanding of ionic liquids will enhance their use in supercapacitor technology. The study has been published in Journal of Molecular Liquids and supported by a grant from the Russian Science Foundation (RSF).
Enhancing Wireless Network Performance Through Cross-Layer Protocol Stack Solutions
An international team, including researchers from the Russian Academy of Sciences Institute for Information Transmission Problems, HSE University, and Shanghai Jiao Tong University, analysed the approaches used to optimise the data transfer rates of TCP and QUIC protocols in high-frequency wireless networks. According to the scientists, cross-layer solutions provide the highest gains in data transfer rates. The paper has been published in IEEE Communications Surveys & Tutorials, one of the most influential international journals in the field of telecommunications, boasting an impressive impact factor of 35.6.
Peacocks, Pepper, and Petrol: The Early History of Imports from Asia
Petroleum for equine care, wood oil for lighting, sandalwood for Easter celebrations, and lemons and olives for entertaining unexpected guests. Russian monasteries often used these and other eastern goods in the period leading up to and during the reign of Peter the Great. Analysing their account books leads to a revision of the traditional assumptions about the primary consumers of oriental goods in Russia. These consumers, in addition to the royal and aristocratic circles, included monastery estates, as discussed in the paper ‘“Three altyns worth of petroleum…”: Oriental goods in Russia at the second half of the 17th and early 18th century’ by historian Arthur Mustafin of HSE University. Based on his paper, IQ.HSE explores the types of goods that were shipped from the East to Russia in the latter half of the 17th to the early 18th century, including the routes and purposes of these shipments.
Scientists Have Developed a Model of Malignant Prostate Tumour and Used It to Test Drug Efficacy
Researchers from HSE University and the Russian Ministry of Health National Medical Research Radiological Centre have successfully generated a three-dimensional laboratory model of prostate cancer and used the model for testing an anti-tumour drug. In the future, this approach has the potential to significantly enhance the efficacy of cancer treatment for patients. The study’s findings have been published in Cancer Urology.
The Brain Is a Network of Networks. Scientists Have Found a Way to Unravel Them
A team of researchers from HSE University and the Artificial Intelligence Research Institute (AIRI) have demonstrated the effectiveness of the PSIICOS method they had previously developed for non-invasive mapping the neural networks in the brain based on its electrical activity. Unlike other methods, it does not search for individual neuronal sources to be then combined into networks but instead looks directly for the functional networks of interconnected neuronal populations—and does so swiftly and accurately. The study findings have been published in NeuroImage.
HSE Neuroscientists Use Neural Network to Enhance Neurofeedback Technology
Researchers from HSE University and the Artificial Intelligence Research Institute (AIRI) have successfully lowered the latency between a change in brain activity and the presentation of the corresponding neurofeedback signal by a factor of 50. The results were obtained by employing a neural network trained in low-latency filtering of brain activity signals from diverse individuals. This approach opens up new prospects for the treatment of attention deficit disorder and epilepsy. A paper with the study findings has been published in Journal of Neural Engineering.
Financial Sector Risks Can Hinder Transition to Green Economy
According to HSE and MGIMO economists, increased financial sector risks in developed countries may be associated with a higher carbon footprint in banks' loan portfolios. This is likely due to the fact that in response to an unstable economic situation, banks tend to issue more loans to companies that have a detrimental impact on the environment. Although this might yield short-term profits for the banks, such trends hinder humanity's progress towards achieving a green economy. The paper has been published in Environmental Science and Pollution Research.
Online Rhythmic Transcranial Magnetic Stimulation Can Reveal the Precise Moment When Preferences Shift in the Human Brain
Cognitive dissonance is a complex and multifaceted psychological phenomenon that arises in challenging decision-making scenarios. Multiple regions of the brain participate in its occurrence, yet the neurodynamics of underlying cognitive mechanisms remain a subject of debate. Researchers from the HSE Institute for Cognitive Neuroscience have proposed the use of online transcranial magnetic stimulation applied to participants as they were actively engaged in tasks, to pinpoint the moment of cognitive dissonance resolution. Their findings have been published in a review paper in Frontiers in Human Neuroscience.