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Activity Patterns in Neurons in the Retrosplenial Area of the Cortex in Operant Food-Procuring Behavior in Rats of Different Ages
Neuroscience and Behavioral Physiology, Springer New York. 2018. Vol. 48. No. 18. P. 1014–1018.
Aleksandrov Y., Gorkin A. G., Kuzina E. A., Ivlieva N. P., Solov’eva O. A.
Neuron spike activity was recorded in the retrosplenial area of the cortex during execution of acquired cyclic operant food-procuring behavior (COFPB) in adult (8–12 months) and elderly (20–27 months) LongEvans rats. As compared with adult rats, elderly animals showed a signifi cant decrease in the proportion of neurons specialized for COFPB. The normalized discharge frequency of all neurons in elderly animals during execution of basic food-procuring acts was signifi cantly greater than that in adults. Elderly rats showed signifi cantly fewer pairs of acts with signifi cant differences in discharge frequency than adults, indicating that neuron activity on execution of COFPB was more uniform. These data indicate that in old age, learning involves less “extension” of existing experience due to formation of new neuronal specializations than in earlier stages of an individual’s life and that the internal system structure of the newly formed behavior is more “homogeneous.”
Рябов О. В., Рябова Т. Б., Вестник Пермского университета. Серия: Политология 2024 № 4 С. 173–183
The article is the first to address the discourse of age as a resource for constructing the image of the enemy. It is based on the Russian government's official statements, politicians' comments and the country's leading media sources, as well the authors' sociological research. The first part of the paper examines approaches to the analysis ...
Added: January 27, 2026
Liliya Karachurina, Nikita Mkrtchyan, Population, Space and Place 2025 Vol. 31 No. 6 Article e70088
The paper explores the age‐specific vertical migration in Russia. Vertical migration is understood to be the population resettlement up and down the urban hierarchy–from small villages at the bottom, to large urban agglomerations (megapolises) at the top. The objective is to replicate the approach of Plane and others using the life‐course perspective within the context ...
Added: September 5, 2025
Karachurina L. B., Mkrtchyan N. V., Балтийский регион 2023 Т. 15 № 2 С. 4–22
The distance of migration is closely linked to life course events, which are, in turn, marked by age. It serves as a criterion for distinguishing migration from other forms of spatial mobility. This paper aims to calculate the average distance of domestic migrations in Russia between 2011 and 2020, considering various migrant profiles such as ...
Added: July 2, 2023
Karachurina L. B., Mkrtchyan N. V., Geo Journal 2022 Vol. 87 P. 4741–4762
This paper analyses age-specific migration exchange between municipal formations (MFs) in Russia based on the net migration and population density data covering the period 2012–2018. Unlike many other developed countries, Russia’s population concentrates in only 2–5% of the country’s territory— in large cities and their suburbs. We utilise population density as an alternative measure for ...
Added: November 10, 2022
Azzopardi P., Ward J., Vlassov V. et al., The Lancet 2021 Vol. 398 No. 10311 P. 1593–1618
Background
Documentation of patterns and long-term trends in mortality in young people, which reflect huge changes in demographic and social determinants of adolescent health, enables identification of global investment priorities for this age group. We aimed to analyse data on the number of deaths, years of life lost, and mortality rates by sex and age group ...
Added: November 28, 2021
Tugin S., Souza V. H., Nazarova M. et al., Plos One 2021 Vol. 16 No. 9 Article e0257554
Besides stimulus intensities and interstimulus intervals (ISI), the electric field (E-field) orientation is known to affect both short-interval intracortical inhibition (SICI) and facilitation (SICF) in paired-pulse transcranial magnetic stimulation (TMS). However, it has yet to be established how distinct orientations of the conditioning (CS) and test stimuli (TS) affect the SICI and SICF generation. With ...
Added: October 31, 2021
Gimpelson V. E., Zinchenko D., Вопросы экономики 2021 № 8 С. 5–36
In this study, we raise a simple question: do STEM (Science, Technology, Engineering and Math) education and employment provide a monetary return to professionals with this specialization and holding STEM jobs? If yes, what is the premium across ages and cohorts? We compare wages of professionals with the STEM education and without it, holding STEM ...
Added: August 9, 2021
Mitrofanova E., Демографическое обозрение 2020 Т. 7 № 4 С. 36–61
There is an opinion that today’s youth is not only in a hurry to became adults, but also refusing to obtain starting life course events that may limit freedom and that require commitment. To test this idea, we studied the ages of the onset of six major biographical events: completion of professional education, first employment, ...
Added: February 9, 2021
Alexandrov Y., Feldman B., Svarnik O. et al., Journal of Analytical Psychology 2020 Vol. 65 No. 2 P. 345–365
The concept of regression is considered with an emphasis on the differences
between the positions of Freud and Jung regarding its significance. The paper discusses
the results of experimental analyses of individual experience dynamics (from gene
expression changes and impulse neuronal activity in animals to prosocial behaviour in
healthy humans at different ages, and humans in chronic pain) in ...
Added: December 28, 2020
Ugrumov M., Doklady Biochemistry and Biophysics 2020 Vol. 490 P. 34–37
One of the features of the developing suprachiasmatic nucleus (SCN), the “biological clock” of the body, is the early expression of dopamine (DA) receptors in the absence of dopaminergic neurons as a source of DA. Only recently we showed that DA in SCN is synthesized together by nerve fibers containing only tyrosine hydroxylase (TH) and ...
Added: December 6, 2020
Alieva A., Rudenok M., Filatova E. et al., Scientific Reports 2020 Vol. 10 Article 827
Valosin-containing human protein (VCP) or p97 performs enzyme functions associated with the maintenance of protein homeostasis and control of protein quality. Disruption of its normal functioning might be associated with the development of Parkinson’s disease (PD). Tissues of mice with toxininduced presymptomatic and early symptomatic stages of PD, as well as 52 treated and untreated ...
Added: December 6, 2020
Levinson K., , in: Foreign Countries of Old Age: East and Southeast European Perspectives on Aging.: Bielefeld: Transcript Verlag, 2020. Ch. 4 P. 91–108.
The age-related personnel policy of the Soviet academia changed significantly over the four post-WWII decades. At the beginning of this period we find no evidence of articulated age benchmarks, but clear preferences can be traced in practices privileging senior groups of students, faculty and researchers, respectively. Particular importance was attached to scholars’ "experience", and it ...
Added: November 1, 2020
Булыгина В. Г., Vlasov A., Дубинский А. А. et al., Медицина труда и промышленная экология 2020 Т. 2020 № 2 С. 128–135
In modern conditions, individualization and optimization of training and additional professional education of a wide range of specialists are increasing in order to strengthen the “personnel base” and solve complex internal and external tasks. Individualized training involves: 1) selecting people according to the criteria of personal predisposition to this type of professional activity; 2) building ...
Added: May 24, 2020
Чадова И. Н., В кн.: «Нейронаука для медицины и психологии»: 9-й Международный Междисциплинарный Конгресс. Судак, Крым, Украина, 3-13 июня 2013 года.: Труды.: М.: МАКС Пресс, 2013. С. 99–100.
One of the possible reasons of a shortage of data in literature on age change of neurodynamic parameters of women within reproductive stage ontogenesis is, against the background research of a leading age factor, ignoring influence of the OMC factor stage. ...
Added: November 13, 2019
Audible Paralinguistic Phenomena in Everyday Spoken Conversations: Evidence from the ORD Corpus Data
Sherstinova T., , in: Language, Music and Computing. Second International Workshop, LMAC 2017, St. Petersburg, Russia, April 17–19, 2017, Revised Selected PapersVol. 943.: Switzerland: Springer, 2019. P. 131–145.
Paralinguistic phenomena are non-verbal elements in conversation.
Paralinguistic studies are usually based on audio or video recordings of spoken
communication. In this article, we will show what kind of audible paralinguistic
information may be obtained from the ORD speech corpus of everyday Russian
discourse containing long-term audio recordings of conversations made in
natural circumstances. This linguistic resource provides rich authentic ...
Added: October 29, 2019
Mkrtchyan N. V., Население и экономика 2019 Т. 3 № 1 С. 39–51
The article analyzes indicators of intensity of migration growth of municipal formations of the rank of district or urban district with completely rural or predominantly rural population. Rural areas in the suburbs of regional capitals and intraregional periphery, as well as those located in the South, the Non-Chernozem region, the South of Siberia and the ...
Added: April 28, 2019
Shpilman A., Sosin I., Kudenko D., , in: 2018 15th International Conference on Control, Automation, Robotics and Vision (ICARCV).: IEEE, 2018. P. 1436–1441.
Movement control of artificial limbs has made big advances in recent years. New sensor and control technology enhanced the functionality and usefulness of artificial limbs to the point that complex movements, such as grasping, can be performed to a limited extent. To date, the most successful results were achieved by applying recurrent neural networks (RNNs), ...
Added: January 18, 2019
Juan Carlos M., Maria Victòria S. R., Rudchenko V., Fuzzy Economic Review 2018 No. 23 P. 63–85
Guest’s satisfaction in the hotel industry cannot be easily measured because these constructs depend on multiple intangible attributes that can be evaluated very differently by distinct market segments. In this paper, the satisfaction experienced by different market segments based on age and gender is evaluated by the use of a hybrid method built from the ...
Added: January 15, 2019
Kazakov A., Леванова Т. А., Коротков А. Г. et al., Известия высших учебных заведений. Прикладная нелинейная динамика 2018 Т. 26 № 5 С. 101–112
The phenomenological model of an ensemble of three neurons which are coupled by
chemical (synaptic) and electrical couplings is studies. A neuron is modeled by the oscillator of van
der Pol. The aim of work is a study of the influence of coupling’s strength and frequency detuning
between elements at regime of sequential activity that is observed in ...
Added: October 26, 2018
Zakharov D., Гуткин Б. С., Krupa M. et al., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2018 Vol. 97 No. 6 P. 062211-1–062211-5
We analyzed a generic relaxation oscillator under moderately strong forcing at a frequency much greater that the natural intrinsic frequency of the oscillator. Additionally, the forcing is of the same sign and, thus, has a nonzero average, matching neuroscience applications. We found that, first, the transition to high-frequency synchronous oscillations occurs mostly through periodic solutions ...
Added: October 4, 2018
Gimpelson V. E., Kapeliushnikov R., , in: The Russian Economy Under Putin.: L.: Routledge, 2018. Ch. 8 P. 121–148.
This chapter deals with age and educational dimensions of the labour supply in Russia, and looks into two time periods covering 15 years in retrospect and the next 15 years in prospect. For our analysis we exploit the micro-census (2015) data and all labour force surveys (LFS) waves covering the retrospect. Using demographic projections we ...
Added: September 29, 2018