1,400 results match your criteria: "Peoples' Friendship University of Russia RUDN University.[Affiliation]"

Article Synopsis
  • Peripheral artery disease (PAD) is a serious health issue globally, causing significant health problems and increasing mortality, prompting the need for more effective management approaches.
  • A study analyzing data from the Unified National Electronic Healthcare System (2014-2021) revealed a rising trend in PAD incidences, with 19,507 hospitalizations, predominantly affecting older adults and linked to several comorbidities.
  • The findings indicate that conditions like heart failure and acute myocardial infarction enhance mortality risks in PAD patients, reinforcing the need for urgent interventions in Kazakhstan to address this growing health concern.
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The climate and thermal comfort of а destination greatly influence the tourism industry. Therefore, this study was focused on researching thermal comfort changes and their impacts on visitors in four highly visited coastal destinations along the eastern Adriatic coast (Pula, Zadar, Split, and Dubrovnik) from 1996 to 2020, using the modified physiologically equivalent temperature index (mPET). The specific objective was to assess how the thermal comfort conditions are distributed spatially and temporally and how they are suitable for beach and sightseeing tourism.

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  • - The study demonstrates the use of inactivated alkyl boronic acids (BAs) as effective partners in a photocatalyzed Suzuki-Miyaura reaction without needing external activators or strong oxidants.
  • - It proposes a unique activation pathway for BAs involving a radical transfer between a bromine radical and the boron atom's empty p-orbital, which differs from traditional methods that rely on tuning oxidation potential.
  • - The findings are backed by control experiments and density functional theory (DFT) calculations, introducing a new halogen radical transfer (XRT) mechanism for the reaction.
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Potential involvement of connective tissue growth factor in chondrocytes apoptosis of Kashin-Beck disease.

Ecotoxicol Environ Saf

October 2024

Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China. Electronic address:

Article Synopsis
  • Kashin-Beck disease (KBD) is a condition marked by abnormal cartilage cell death, linked to exposure to T-2 toxin, and is influenced by connective tissue growth factor (CTGF).
  • Researchers studied CTGF levels and apoptosis in cartilage samples from KBD patients and found that T-2 toxin exposure increases both CTGF and apoptosis markers in chondrocytes.
  • Curcumin was identified as a potential treatment that can inhibit CTGF and reduce chondrocyte apoptosis, suggesting it could help prevent cartilage damage in KBD.
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Microbial rrn copy number is associated with soil C: N ratio and pH under long-term fertilization.

Sci Total Environ

December 2024

Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; The Rural Development Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, China. Electronic address:

Soil microbial life-history strategies, as indicated by rRNA operon (rrn) copy numbers, strongly influence agro-ecosystem functioning. Long-term N fertilization causes strong and lasting changes in soil properties, yet its impact on microbial strategies remains largely unexplored. Using long-term field experiments across three agro-ecosystems, we consistently found that N fertilization strongly decreased soil C: N ratio and pH, further increasing the community-level rrn copy number, including both average rrn copy number and total 16S rRNA copy number.

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The synthesis of a high nuclear (CuNa) complex 1 the self-assembly of copper(II) phenylsilsesquioxane induced by complexation with bis(triphenylphosphine)iminium chloride (PPNCl) was successfully achieved. This complex, which includes two bis(triphenylphosphine)iminium PPN cations, represents the first example of a metallasilsesquioxane/phosphazene compound. The CuNa-silsesquioxane cage demonstrates a nontrivial combination of two pairs of Si-cyclic/Si-acyclic silsesquioxane ligands and a fusion of two SiCuNa fragments, combined the central ninth copper ion.

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Background: Surgical treatment of benign thyroid disease varies from lobectomy, subtotal thyroidectomy, and total thyroidectomy (TT).

Objective: The current study aimed to compare complications of both total and subtotal thyroidectomy (STT) for patients with bilateral benign thyroid disorders.

Methods: Sixty patients with benign goiter, 32 for TT and 28 for STT, where indications for surgery, operating time, hospital stay, and complications were studied.

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The purpose of this study was to determine the contribution of genetic factors, i.e., the level of expression and polymorphisms of Toll-like receptors (TLR), to the susceptibility of latent tuberculosis infection in a Russian cohort of individuals infected with HIV.

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Article Synopsis
  • Radiotherapy can lead to premature ovarian failure and infertility in cancer patients, highlighting the need for ovarian radioprotection methods.
  • Electron irradiation is a promising but under-researched option that has less toxic effects on surrounding tissues compared to other radiation types.
  • The study shows that leukocyte-poor platelet-rich plasma can mitigate the negative effects of electron irradiation on ovarian function by promoting healing and reducing inflammation through specific cellular mechanisms.
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Processes determining the amount and spatial distribution of dissolved oxygen in the ocean have been a focus of intense research over the last two decades. Anomalies known as Oxygen Minimum Zones (OMZs) have been attracting growing attention, in particular because their growth is believed to be a result of the global environmental change. Comprehensive understanding of factors contributing to and/or controlling the emergence and evolution of OMZs is still lacking though.

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Expression of concern for 'Direct C-S bond formation C-O bond activation of phenols in a crossover Pd/Cu dual-metal catalysis system' by Vahid Khakyzadeh , , 2019, , 4491-4497, https://doi.org/10.1039/C9OB00313D.

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We describe all-endoscopic deep gluteal syndrome treatment and sciatic nerve decompression at the infrapiriformis space. Surgery is performed with the patient in the prone position with the usual arthroscopic instruments and pump. The first step includes performing placement of 2 initial portals (medial and median) without fluoroscopy in the area of the ischial tuberosity and conjoint tendon, as well as release in this area with a subsequent shift in the lateral direction.

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In our study, we leveraged an electronic nose to detect the patterns of crude oils and their mixtures, sourced from the oil fields from neighboring regions in pursuit of the task of environmental impact evaluation. The temporal dynamics of oil-related patterns acquired by an electronic nose was tracked to identify the influence of high or low emissions of volatiles that depend on the oil composition. Analyzing the oils by Fourier-transform IR-spectroscopy and GC×GC-MS, we confirmed the correlation between sensor responses and the oil compositions, significantly dependent on the ratio of aromatic compounds/alkanes.

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The number of patients with diabetes mellitus (DM) has been progressively increasing worldwide over the past decades, and many international organizations consider DM as a public health emergency of the 21st century.Critical limb ischemia (CLI) is the most severe stage of peripheral arterial disease (PAD) in DM and is characterized by a high risk of limb loss without revascularization. Traditional treatment tactics include open and endovascular revascularization surgical techniques.

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The Nature of Structural Defects in ZIF-8 Revealed with H and P MAS NMR and X-Ray Absorption Spectroscopy.

Angew Chem Int Ed Engl

January 2025

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.

The metal-organic frameworks (MOFs) attract interest as potential catalysts whose catalytic properties are driven by defects. Several methods have been proposed for the defects-inducing synthesis of MOFs. However, the active species formed on the defective sites remain elusive and uncharacterized, as the spectroscopic fingerprints of these species are hidden by the regular structure signals.

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An extended (, 19 distinct species) family of cage-like Cu-phenylsilsesquioxanes allowed us to accentuate the general regularities behind their structural organization. Influencing factors, namely the (i) size of external alkali metal ions (from Li to Cs) and (ii) nature of bridging linkers (including the smallest possible ones, like a water molecule) on the self-assembly/supramolecular assembly of such Cu-building blocks have been thoroughly explored. A CuK-based complex has been evaluated as a precatalyst in the oxidation of alkanes (cyclohexane, -heptane, methylcyclohexane) and alcohols.

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Fabrication of Anti-Fatigue Double-Wrapped Yarns with Excellent Mechanical Properties for Generating Compression Fabrics.

Polymers (Basel)

August 2024

Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.

Elastic yarns are the key component of high-performance compression garments. However, it remains a challenge to fabricate anti-fatigue yarns with high mechanical force and long elongation for generating compression garments with prolonged wear. In this paper, we report the development of anti-fatigue double-wrapped yarns with excellent mechanical properties by wrapping high-denier Spandex with nylon filaments in opposite twists.

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Here, we present a new approach for the activation of donor-acceptor cyclopropanes in ring-opening reactions, which does not require the use of a Lewis or Brønsted acid as a catalyst. Donor-acceptor cyclopropanes containing a phenolic group as the donor undergo deprotonation and isomerization to form the corresponding quinone methides. This innovative strategy was applied to achieve (4 + 1)-annulation of cyclopropanes with sulfur ylides, affording functionalized dihydrobenzofurans.

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Article Synopsis
  • PVDF is a versatile polymer known for its piezosensitivity, structural stability, and chemical resistance, making it highly applicable in biomedical fields.
  • The review highlights advancements in PVDF-based systems such as bioelectric therapy devices, stimulus-responsive drug delivery systems, and tissue scaffolds, showcasing its piezoelectric properties.
  • A notable focus is on the potential of PVDF in innovative imaging techniques and health monitoring applications, while also addressing challenges and future opportunities in the biomedical sector.
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Positive soil priming effects are the rule at a global scale.

Glob Chang Biol

September 2024

Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China.

Priming effects of soil organic matter decomposition are critical to determine carbon budget and turnover in soil. Yet, the overall direction and intensity of soil priming remains under debate. A second-order meta-analysis was performed with 9296-paired observations from 363 primary studies to determine the intensity and general direction of priming effects depending on the compound type, nutrient availability, and ecosystem type.

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An aneurysm is an abnormal enlargement or bulging of the wall of a blood vessel. Most often, aneurysms occur in large blood vessels - the aorta (Thoracic Aortic Aneurysm (TAA) and Abdominal Aortic Aneurysm (AAA)) and brain vessels (Intracranial Aneurysm (IA)). Despite the presence of significant differences in the pathogenesis of the development and progression of IA and TAA/AAA, there are also similarities.

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Effects of environmental changes on soil respiration in arid, cold, temperate, and tropical zones.

Sci Total Environ

November 2024

Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Soil respiration (R) is projected to be substantially affected by climate change, impacting the storage, equilibrium, and movement of terrestrial carbon (C). However, uncertainties surrounding the responses of R to climate change and soil nitrogen (N) enrichment are linked to mechanisms specific to diverse climate zones. A comprehensive meta-analysis was conducted to address this, evaluating the global effects of warming, increased precipitation, and N enrichment on R across various climate zones and ecosystems.

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Article Synopsis
  • * A study in Russia examined 574 hospitalized children under 18 with COVID-19 from January 2022 to March 2023, finding about one-third had coinfections, predominantly adenovirus and bacterial infections.
  • * Results indicated that while viral coinfections led to higher fevers and bronchitis, bacterial coinfections resulted in longer illnesses and increased pneumonia, suggesting that seasonal viruses may have been more harmful to children during the Omicron wave than SARS-CoV-2 alone.
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Burn injuries represent a significant problem in clinical practice due to the high risk of infection and the prolonged healing process. Recently, more attention has been given to natural remedies such as water extracts of various medicinal plants, which possess anti-inflammatory and wound healing properties. The aim of this study is to evaluate the efficacy and safety of L.

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  • Glucocorticoids (GCs) are commonly used to treat blood cancers but can cause various side effects due to how they interact with glucocorticoid receptors (GRs).
  • Selective GR agonists (SEGRAs) like CpdA aim to enhance the beneficial anticancer effects while minimizing side effects; however, CpdA faces challenges with chemical instability.
  • The newly developed derivative, CpdA-03, shows improved stability and GR affinity, demonstrating significant anticancer activity in lymphoma models, with a tripling reduction in tumor volume compared to conventional treatments.
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