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Взаимосвязь между мозговой перфузией и выраженностью проявлений церебральной болезни мелких сосудов по данным магнитно-резонансной томографии в контексте реабилитационного потенциала острого периода ишемического инсульта
Неврологический журнал. 2018. Т. 23. № 6. С. 299–308.
Кайлева Н. А., Кулеш А. А., Горст Н. Х., Быкова А. Ю., Дробаха В. Е., Sobyanin K., Шестаков В. В.
Aim. To study the relationship between cerebral perfusion and severity of cerebral small vessel disease (SVD) in the context of the rehabilitation potential in acute ischemic stroke (IS).
Material and methods. 50 patients with IS and 10 persons of the control group were examined. All patients underwent standard examinations, including brain MRI with an assessment of lacunes, enlarged perivascular spaces (PVS), leukoareosis and cerebral microbleeds (CMB). Cerebral blood flow (CBF) was quantified in the middle cerebral artery territory according to ASPECTS scale by non-contrast magnetic resonance ASL-perfusion.
Results. In patients with IS, unlike the control group, a lower CBF in M3 white matter within both hemispheres and in the cortical part of M6 of the ipsilateral hemisphere is revealed. The number of lacunes in the contralateral hemisphere is related to perfusion in 8 ASPECTS areas. The number of PVS is associated with CBF in insula, lenticular nucleus, M3 of the opposite hemisphere, M6 and internal capsule of the affected hemisphere. The severity of leukoareosis correlates with CBF in 4 zones of the opposite hemisphere. The greatest number of correlations with CBF in basal ganglia was observed for CMBs of the affected hemisphere. Total severity of SVD is also associated with CBF in several areas. The severity of neurological deficiency and dynamics of patient`s mobility, functional and cognitive status correlates with CBF. Conclusion. Global perfusion status is associated with severity of SVD and rehabilitation potential in acute period of IS.
Shabanov N., Kuricheva O., Kurbatova J. et al., / Series Working Papers SSRN "Department of Economics Ca’ Foscari University of Venice". 2026.
The carbon balance of an ecosystem is the difference between Gross Primary Productivity (GPP) and Ecosystem Respiration (Reco) as expressed by Net Ecosystem Exchange (NEE). While remote sensing retrievals of GPP have reached maturity, Reco estimation remains underexplored and ultimately cast bias on NEE. Here we present an end-to-end multi-scale analysis of the mechanism of ...
Added: August 21, 2026
Andresyuk E., Porozova N., Londaridze G. D. et al., Frontiers in Oncology 2026 Vol. 16 Article 1875861
Inhibition of the PD-1/PD-L1 axis has become a clinical standard across multiple malignancies, yet durable benefit remains restricted to selected settings, and many biologically rational combinations fail to maintain clinical benefit in late-phase evaluation. This structured, registry-derived narrative review, supported by expert-guided interpretation, was designed to identify the most clinically meaningful development directions among strategies ...
Added: July 31, 2026
Ponomarenko A., / Series Computer Science "arxiv.org". 2025.
This paper addresses the challenge of merging hierarchical navigable small world (HNSW) graphs, a critical operation for distributed systems, incremental indexing, and database compaction. We propose three algorithms for this task: Naive Graph Merge (NGM), Intra Graph Traversal Merge (IGTM), and Cross Graph Traversal Merge (CGTM). These algorithms differ in their approach to vertex selection ...
Added: July 30, 2026
Wang R., He Y., Myachykov A. et al., Neuroimage 2026 Vol. 332 Article 121926
Insomnia disorder (ID) exhibits considerable heterogeneity in neuroimaging findings across studies, and whether functional brain alterations are consistent across resting and task states remains unclear. This study aimed to identify neural dysfunction across states in ID and explore its transcriptomic correlates. ...
Added: July 13, 2026
Shestoperov A. I., Ivchenko A., Fomina E. V., Microgravity Science and Technology 2025 Vol. 37 Article 19
The paper is dedicated to the analysis of medico-biological data obtained during locomotor testing of astronauts. Accurate data interpretation plays a crucial role in locomotion system monitoring, prophylaxis of long-duration spaceflight negative effects and thus in the development of an autonomous medical support system for deep space expeditions. During the locomotor testing the astronaut changes ...
Added: June 26, 2026
Piontkovski D., / Series arXiv "math". 2026.
A noncommutative projective variety is defined, following Artin and Zhang, by a graded coherent algebra 𝐴. The category of coherent sheaves is then the quotient qgr(𝐴) of the category of finitely presented graded modules by the subcategory of torsion modules. We consider the categorical and polynomial entropies of the Serre twist, that is, of the ...
Added: June 23, 2026
Piontkovski D., / Series arXiv "math". 2025.
If a symmetric multilinear algebra is weakly nil, then it is Engel. This result may be regarded as an infinite-dimensional analogue of the well-known Jacobian theorem, which states that if a polynomial mapping has a polynomial inverse, then its Jacobian matrix is invertible. This refines a theorem of Gerstenhaber and partially answers a question posed ...
Added: June 23, 2026
Vasilev R., Savchenko A., Blinov P. et al., Frontiers in Medicine 2026 Vol. 13 Article 1778404
Automated disease screening systems face challenges when applied to multi-class medical image analysis, particularly under severe class imbalance inherent in clinical datasets. Retinal fundus imaging enables non-invasive screening for multiple ocular and systemic diseases simultaneously, yet current automated systems typically assess risk for only a single pathology or a limited disease range. We developed a ...
Added: June 16, 2026
Zaikin A., Sviridov I., Sosedka A. et al., Technologies 2026 Vol. 14 No. 2 Article 84
High-dimensional tabular data are common in biomedical and clinical research, yet conventional machine learning methods often struggle in such settings due to data scarcity, feature redundancy, and limited generalization. In this study, we systematically evaluate Synolitic Graph Neural Networks (SGNNs), a framework that transforms high-dimensional samples into sample-specific graphs by training ensembles of low-dimensional pairwise ...
Added: May 23, 2026
ЯКУБЕНКО Т. В., Plotnikov S., Ratio et Natura 2024 № 3 (11) Статья 10
The article presents the results of our own research aimed at studying the prospects of using genetic sequencing technologies to identify the risk of having children with genetic abnormalities. ...
Added: May 21, 2026
Shipilov F., Barnyakov A., Ivanov A. et al., / Series Physics "arxiv.org". 2026.
A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, ...
Added: May 19, 2026
Андрушкевич О. М., Калиновский А. В., Гаврюшин А. В. et al., Нейрохирургия 2026 Т. 28 № 1 С. 33–42
Background. The application of cortical and subcortical stimulation during awake craniotomy mitigates the risk of persistent postoperative speech deficits. However, the functions of some white matter pathways remain inadequately understood, particularly the frontal aslant tract (FAT) of the dominant hemisphere.
Aim. To evaluate the efficacy of cortical and subcortical stimulation techniques in the localization of glial tumors near ...
Added: May 18, 2026
Garmonova A., Shcheglova D., Камалова Г. Р. et al., Кубанский научный медицинский вестник 2026 Т. 33 № 2 С. 92–110
Introduction. The study analyzes the structure and volume of workload for faculty at Russian medical universities amidst increasing student numbers, rising demands for students' clinical training, scientific output, and continuous professional education. The relevance of the topic stems from the contradiction between official regulatory requirements and the actual excessive workload of medical educators. The aim is to provide ...
Added: April 29, 2026
Derkacheva A., Sakirkina M., Kraev G. et al., /. 2026.
Comprehensive data on natural hazards and their consequences are crucial for effective for risk assessment, adaptation planning, and emergency response. However, many countries face challenges with fragmented, inconsistent, and inaccessible data, particularly regarding local-scale events. To address this data gap in Russia, we developed an end-to-end processing pipeline that scrapes news from various online sources, ...
Added: April 28, 2026
Krasnov L., Malikov D., Kiseleva M. et al., Journal of Medicinal Chemistry 2026 Vol. 69 No. 8 P. 8838–8851
In this work, we developed a straightforward data-driven approach to predict the cytotoxicity of metal complexes based entirely on their (metal + ligands) composition. To this end, we have manually curated MetalCytoToxDB─a comprehensive experimental database comprising 26,500 IC50 values for 7050 metal complexes against 754 cell lines from 1921 articles. Based on these, machine learning ...
Added: April 23, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Pogodaeva S., Miletina O., Antipova N. et al., Cancers 2025 Vol. 17 No. 19 Article 3228
Pediatric tumors such as neuroblastoma are characterized by a genome-wide ‘transcriptional burden’, surmising the involvement of multiple alterations of gene expression. Search for master regulators of transcription whose inactivation is lethal for tumor cells identified the non-POU domain-containing octamer-binding protein (NONO), a member of the Drosophila Behavior/Human Splicing family known for the ability to form ...
Added: April 15, 2026
Богатова В. Д., Кузнецова А. Ю., Поляев Б. Б. et al., Бюллетень сибирской медицины 2026 Т. 25 № 1 С. 131–143
Острое нарушение мозгового кровообращения (ОНМК) может приводить к двигательным, когнитивным и речевым нарушениям, которые требуют продолжительной коррекционной работы. Реабилитационный потенциал (РП) является показателем уровня максимально возможного восстановления пациента в намеченный отрезок времени. Поддержание РП на втором этапе медицинской реабилитации (МР) – одна из важных задач работы медицинского психолога. Однако ее содержание и теоретический фундамент недостаточно ...
Added: April 14, 2026
Gabdullin N., Androsov I., / Series Computer Science "arxiv.org". 2026.
Label prediction in neural networks (NNs) has O(n) complexity proportional to the number of classes. This holds true for classification using fully connected layers and cosine similarity with some set of class prototypes. In this paper we show that if NN latent space (LS) geometry is known and possesses specific properties, label prediction complexity can ...
Added: April 2, 2026
Данилова Н. В., Олейникова Н. А., Михайлов И. А. et al., М.: КДУ, Университетская книга, 2025.
This textbook contains all the lectures from the pathological anatomy course at the Faculty of Fundamental Medicine of Lomonosov Moscow State University. The total duration of video recordings is over 50 hours. Each lecture has a brief summary. The accessible presentation of the material will allow you to effectively use your knowledge in preparation for ...
Added: March 3, 2026
Троцкая И. А., Львова О. А., Короткова Е. В. et al., В кн.: Медицинское образование, наука, практика : Сборник статей X Международной научно-практической конференции молодых ученых и студентов, 22-23 апреля 2025 г. Т.2.: Екатеринбург: ФГБОУ ВО УГМУ Минздрава России, 2025. С. 673–679.
Pediatric ischemic stroke is considered to be a rare condition. Correct recognition of the acute symptoms
and further monitoring of the dynamics of them may allow predicting the child's development and further adaptation. The aim of the study was to provide clinical and imaging features of the acute period of ischemic stroke with debut at an ...
Added: March 2, 2026
Екатеринбург: ФГБОУ ВО УГМУ Минздрава России, 2025.
2
Федеральное государственное бюджетное образовательное учреждение
высшего образования
«Уральский государственный медицинский университет»
Министерства здравоохранения Российской Федерации
Научное общество молодых ученых и студентов
Медицинское образование, наука,
практика
Сборник статей X Международной научно-практической конференции
молодых ученых и студентов
Medical education, science, practice
22-23 апреля 2025 г. ...
Added: March 2, 2026
Пермский государственный национальный исследовательский университет, 2025.
Представлены материалы Десятой всероссийской научно-практической конференции с международным участием «Искусственный интеллект в решении
актуальных социальных и экономических проблем ХХI века», которая проводилась 9–10 октября 2025 г. в Перми, ПГНИУ.
Сборник предназначен для научных и педагогических работников, преподавателей, аспирантов, магистрантов, студентов и всех, кто интересуется и занимается проблемами развития и применения методов искусственного интеллекта. ...
Added: February 15, 2026
М.: Эксмо, 2025.
"Сердечная недостаточность"— это современное и всестороннее практическое руководство для врачей, посвященное одной из ключевых проблем кардиологии. В основе книги лежат принципы доказательной медицины, актуальные клинические рекомендации и последние научные достижения в области диагностики и лечения хронической сердечной недостаточности (ХСН).
В руководстве подробно рассмотрены:
- этиология и патофизиологические механизмы развития ХСН;
- современные классификации и критерии диагностики;
- дифференциальная диагностика ...
Added: February 7, 2026