220,799 results match your criteria: "Russia; National Research University Novosibirsk State University[Affiliation]"

Machine learning recognition of hybrid lead halide perovskites and perovskite-related structures from X-ray diffraction patterns.

Nanoscale

January 2025

Laboratory of New Materials for Solar Energetics, Department of Materials Science, Lomonosov Moscow State University, 1 Lenin Hills, 119991, Moscow, Russia.

Identification of crystal structures is a crucial stage in the exploration of novel functional materials. This procedure is usually time-consuming and can be false-positive or false-negative. This necessitates a significant level of expert proficiency in the field of crystallography and, especially, requires deep experience in perovskite-related structures of hybrid perovskites.

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Acute stroke is the second leading cause of death and the third leading cause of disability in the world. Ischemic stroke (IS) the most common type of stroke. In acute cerebral ischemia, damage to the brain tissue is complex and includes blood-brain barrier (BBB) dysfunction, neuroinflammation, oxidative stress, activation of intracellular and extracellular signaling pathways, expression of neurotoxic agents, excitotoxicity, and apoptosis.

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Objective: To evaluate the features of primary and recurrent stroke in men aged 18-50 years with atherothrombotic, lacunar, and cardioembolic subtypes.

Material And Methods: A total of 125 men with primary and recurrent stroke were included in the study. The main vascular risk factors and lifestyle-related risk factors were assessed.

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Locked-in syndrome is a rare neurological disorder. It is characterized by tetraparesis, paralysis of facial and masticatory muscles, anarthria and pseudobulbar syndrome with possible preservation of vertical movements of the eyeballs and blinking, as well as preservation of consciousness. A serious problem with the «locked-in person» syndrome is the inability of the patient to socialize, which causes him to experience no less suffering than from physical limitations.

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The article considers the issues of clinical presentation, diagnosis and treatment of arterial dissection, a common cause of ischemic stroke at a young age. The causes, predisposing factors and pathophysiological foundations of the development of this disease are discussed. It is noted that arterial dissection is often accompanied by non-specific clinical manifestations, which complicates the diagnosis.

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Stroke is the main cause of disability among neurological diseases. There are questions of the accuracy of topical diagnosis and rehabilitation prognosis in clinical practice. Answers to these questions may be given by an approach to the study of the nervous system as a dynamic network consisting of a set of brain regions with anatomical and functional connections between them.

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Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy CADASIL) is a rare inherited disorder in which thickening of the walls of small and medium-sized blood vessels blocks blood flow to the brain. Diagnosis of CADASIL is based on clinical presentation, neuroimaging findings, and genetic predisposition. This disease is uncommon in children; typically, symptoms manifest in individuals between the ages of 20 and 40, though some may exhibit symptoms later in life.

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Hemorrhagic transformation (HT) is a serious complication that worsens outcomes and increases mortality in patients with ischemic stroke (IS). HT can occur both spontaneously and after reperfusion therapy. Severe ischemic injury in IS is not sufficient in itself to cause HT; one of the key elements in its development is reperfusion.

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Objective: To investigate the structural damage in patients with aphasia in the acute phase of ischemic stroke using X-ray computed tomography (CT) scans of the brain.

Material And Methods: We examined 65 right-handed individuals in the acute stage of ischemic stroke in the left middle cerebral artery, including 39 men and 26 women aged 41 to 87 years. The patients were divided into two groups: those with aphasia (group 1, 48) and those without aphasia (group 2, 17).

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Objective: To evaluate the concentrations of CC-chemokines and stable metabolites of nitric oxide (NO) and endothelin-1 (ET-1) in patients with atherothrombotic (AT) and cardioembolic (CE) subtypes of ischemic stroke (IS) in the acute period.

Material And Methods: Sixty patients diagnosed with IS in the carotid basin were examined. Group 1 included 30 patients with AT, group 2 - 30 patients with CE subtype of IS.

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Objective: To study the associations of genetic markers influencing the residual reactivity of platelets during antiplatelet therapy with acetylsalicylic acid, and clinical and laboratory parameters, including parameters of the platelet hemostasis, in patients with non-cardioembolic ischemic stroke (IS) for a deeper understanding of the pathogenetic mechanisms and prediction of response to therapy and clinical outcome.

Material And Methods: The study included 296 patients (average age 64.65 [55; 76] years) undergoing treatment at the City Clinical Hospital named after.

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Objective: To analyze the dynamics of clinical and epidemiological indicators of stroke and the features of providing specialized care to patients in the Moscow region in the period 2019-2023.

Material And Methods: Mortality rates, the average annual population, and the number of deaths in one-year age groups were analyzed based on the «Brief Nomenclature of Causes of Death» by ROSSTAT and the database of the Registry Office of the Moscow Region. Depersonalized data on deceased individuals aged 18 years and older were obtained from this database, including codes and names of diseases or conditions specified in Parts I and II of the medical death certificate, age, sex, and place of death for the period 2019-2023.

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Is the risk of bank vole infection with cestodes related to the population dynamics regime?

J Helminthol

January 2025

Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, 8th Marta St. 202, Yekaterinburg620144, Russia.

The bank vole ( (Schreber, 1780)) is the dominant species in the primary fir-spruce forests of the Visim State Biosphere Reserve in the Middle Urals. Here, we studied the long-term population dynamics of small mammals and infection rates with cestode larvae (Cestoida) of bank voles from 1995 to 2021. In addition to the traditionally studied risk factors of parasite infection (e.

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Permafrost thaw poses diverse risks to Arctic environments and livelihoods. Understanding the effects of permafrost thaw is vital for informed policymaking and adaptation efforts. Here, we present the consolidated findings of a risk analysis spanning four study regions: Longyearbyen (Svalbard, Norway), the Avannaata municipality (Greenland), the Beaufort Sea region and the Mackenzie River Delta (Canada) and the Bulunskiy District of the Sakha Republic (Russia).

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To improve medical care and rehabilitation algorithms for patients affected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is important to evaluate and summarize the available data on the effect of coronavirus infection (COVID-19) on the endocrine system. The purpose of this review was to study the effect of COVID-19 on the endocrine system. The scientific novelty of this study is the evaluation of the effect of coronavirus infection on the endocrine system and the potential effect of hormones on susceptibility to COVID-19.

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Background: Lung cancer has become the malignant tumor with the highest morbidity and mortality in the world. This study aims to analyze the burden of lung cancer and risk factors associated with lung cancer in the BRICS from 1990-2021 and to project the burden of lung cancer in the BRICS from 2021-2035.

Methods: The Global Burden of Disease (GBD) 2021 database was searched to collect the incidence, prevalence, mortality, disability-adjusted life years (DALYs), and risk factors of lung cancer in the BRICS.

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Treatment of the Induration of the Soft Tissue of the Lower Eyelids After Accidental Oil Injections.

Plast Reconstr Surg Glob Open

January 2025

From the Department of Oncology, Radiotherapy and Reconstructive Surgery, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.

Injection cosmetic procedures have shown rapid continuing growth in the last 2 decades. Various substances are injected into the periorbital region for skin quality increase and correction of tear trough deformity, including hyaluronic acid, peptides, collagen, and others. Sometimes patients get accidentally injected with different substances that are not approved for cosmetic treatment in this anatomic area.

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Alzheimer's disease (AD) is a multifactorial systemic disease that is triggered, at least in part, by the accumulation of β-amyloid (Aβ) peptides in the brain, but it also depends on immune system-mediated regulation. Recent studies suggest that B cells may play a role in AD development and point to the accumulation of clonally expanded B cells in AD patients. However, the specificity of the clonally expanded B cells is unknown, and the contribution of Aβ-specific B cells to AD pathology development is unclear.

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Purpose: Micro-fragmented adipose tissue is emerging as a promising option for the treatment of various diseases including knee osteoarthritis (OA), though clinical trials are often limited by short follow-up periods. Our aim was to evaluate the safety and clinical outcomes of an arthroscopic debridement followed by a single injection of micro-fragmented adipose tissue in patients affected by knee OA.

Methods: From 2016 to 2020, patients affected by knee OA were enroled.

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Unlabelled: The review deals with the application of Molecular Dynamics (MD) to the structure modeling of beta-amyloids (Aβ), currently classified as intrinsically disordered proteins (IDPs). In this review, we strive to relate the main advances in this area but specifically focus on the approaches and methodology. All relevant papers on the Aβ modeling are cited in the Tables in Supplementary Data, including a concise description of the applied approaches, sorted according to the types of the studied systems: modeling of the monomeric Aβ and Aβ aggregates.

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Aptamers are short oligonucleotides that bind specifically to various ligands and are characterized by their low immunogenicity, thermostability, and ease of labeling. Many biomedical applications of aptamers as biosensors and drug delivery agents are currently being actively researched. Selective affinity selection with exponential ligand enrichment (SELEX) allows to discover aptamers for a specific target, but it only provides information about the sequence of aptamers; hence other approaches are used for determining aptamer structure, aptamer-ligand interactions and the mechanism of action.

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Hepatocellular carcinoma (HCC) stands as the most prevalent form of primary liver cancer and is frequently linked to underlying chronic liver conditions such as hepatitis B, hepatitis C, and cirrhosis. Despite the progress achieved in the field of oncology, HCC remains a significant clinical challenge, primarily due to its typically late-stage diagnosis and the complex and multifaceted nature of its tumor biology. These factors contribute to the limited effectiveness of current treatment modalities and result in poor patient prognosis.

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Unstable States and the Biologization of Mental Illness.

SSM Ment Health

December 2024

Georgetown University, Department of Psychology, 306C White-Gravenor Hall, 3700 O St. NW, Washington, DC 20057.

We critically examine how biological narratives of mental illness mediate relations between personal experiences and socio-structural conditions of distress in crisis contexts. Using three case studies of contemporary crises in Russia, the Republic of Cameroon, and Bangladesh, we showcase the ways in which biological meanings of mental illness carry political and structural significance as authorities employ "biologization" for political ends. In Russia, biologization is strategically useful to authorities seeking to control a populace, as chronic "conditions" can be "treated" indefinitely.

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