15,227 results match your criteria: "PSL∗ Research University[Affiliation]"

Background: Nasal high flow (NHF) has been proposed to sustain high intensity exercise in people with COPD, but we have a poor understanding of its physiological effects in this clinical setting.

Research Question: What is the effect of NHF during exercise on dynamic respiratory muscle function and activation, cardiorespiratory parameters, endurance capacity, dyspnoea and leg fatigue as compared to control intervention.

Study Design And Methods: Randomized single-blind crossover trial including COPD patients.

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This study provides a detailed characterization of the AA5083 aluminum alloy, surface, and interface over 6 months of immersion in seawater, employing techniques such as SEM/EDX, GIXRD, μ-Raman and XPS. The purpose was to evaluate the evolution of the biomineralization process that occurs on the Al-Mg alloy. By investigating the specific conditions that favor the in situ growth of layered double hydroxide (LDH) during seawater immersion as a result of biomineralization, this research provides insights into marine biomineralization, highlighting its potential as an innovative and sustainable strategy for corrosion protection.

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Centrosome aberrations are a common feature in human cancer cells. Our previous studies demonstrated that the centrosomal protein Tax1 binding protein 2 (TAX1BP2) inhibits centrosome overduplication and is underexpressed in hepatocellular carcinoma (HCC). Here, we report that Intratumoral TAX1BP2 promotes tumor lymphocyte infiltration and enhances the efficacy of anti-PD-1 therapy.

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A review on the role of nanocomposites for desulfurization of liquid transportation fuels.

J Environ Manage

January 2025

University of Stuttgart, Institute of Chemical Technology, Faculty of Chemistry, D-70550 Stuttgart, Germany; South Ural State University (National Research University), Chelyabinsk, Russian Federation. Electronic address:

Stringent sulfur removal regulations from transportation fuels from typical levels of 500 ppm to ultra-low levels of 10 ppm (BS-6 standard) present a critical challenge for the crude processing industry. This research thoroughly investigates emerging desulfurization technologies, with a focus on nanocomposite (NC) materials that exhibit exceptional sulfur removal efficiency. Advanced nanocomposite catalysts, such as (TBA)PWFe@TiO@PVA, have near-complete removal rates of 96-99% for complicated sulfur compounds like dibenzothiophene (DBT) and derivatives.

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Symmetry: A Fundamental Resource for Quantum Coherence and Metrology.

Phys Rev Lett

December 2024

Ens de Lyon, Université Lyon, CNRS, Laboratoire de Physique, F-69342 Lyon, France.

We introduce a new paradigm for the preparation of deeply entangled states useful for quantum metrology. We show that, when the quantum state is an eigenstate of an operator A, observables G which are completely off diagonal with respect to A have purely quantum fluctuations, as quantified by the quantum Fisher information, namely, F_{Q}(G)=4⟨G^{2}⟩. This property holds regardless of the purity of the quantum state, and it implies that off-diagonal fluctuations represent a metrological resource for phase estimation.

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Algebraic Depletion Interactions in Two-Temperature Mixtures.

Phys Rev Lett

December 2024

Université de Mons, Laboratoire Interfaces & Fluides Complexes, 20 Place du Parc, B-7000 Mons, Belgium.

The phase separation that occurs in two-temperature mixtures, which are driven out of equilibrium at the local scale, has been thoroughly characterized, but much less is known about the depletion interactions that drive it. Using numerical simulations in dimension 2, we show that the depletion interactions extend beyond two particle diameters in dilute systems, as expected at equilibrium, and decay algebraically with an exponent -4. Solving for the N-particle distribution function in the stationary state, perturbatively in the interaction potential, we show that algebraic correlations with an exponent -2d arise from triplets of particles at different temperatures in spatial dimension d.

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The current review delves into the transformative role of precision medicine in addressing Colorectal Cancer [CRC], a pressing global health challenge. It examines closely signalling pathways, genetic and epigenetic modifications, and microsatellite in-stability. The primary focus is on elucidating biomarkers revolutionizing CRC diagnosis and treatment.

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Objectives: This study aimed to clinically validate the six-gene prognostic molecular clinical risk score (MCRS) for the prediction of aggressive prostate cancer in diagnostic biopsy tissue.

Methods: MCRS was evaluated in prostate biopsy tissue from a Swedish cohort of men with prostate cancer (UPCA,  = 100). The primary outcome of adverse pathology and secondary outcomes of high primary Gleason (≥G4) and high pathological T-stage (≥T3) were assessed by likelihood ratio statistics and area under the receiver operating characteristic curves from logistic regression models; time to biochemical recurrence was assessed by likelihood ratio statistics and C-indexes from Cox proportional hazard regression models.

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Specific modulation of 28S_Um2402 rRNA 2'--ribose methylation as a novel epitranscriptomic marker of ZEB1-induced epithelial-mesenchymal transition in different mammary cell contexts.

NAR Cancer

March 2025

Ribosome, Translation and Cancer Team, LaEx DEVweCAN, Institut Convergence Plascan, LYriCAN+, Centre de Recherche en Cancérologie de Lyon, INSERM U1052, CNRS UMR 5286, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, 69008 Lyon, France.

The epithelial-mesenchymal transition (EMT) is a dynamic transdifferentiation of epithelial cells into mesenchymal cells. EMT programs exhibit great diversity, based primarily on the distinct impact of molecular activities of the EMT transcription factors. Using a panel of cancer cell lines and a series of 71 triple-negative primary breast tumors, we report that the EMT transcription factor ZEB1 modulates site-specific chemical modifications of ribosomal RNA (rRNA).

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Introduction: Research indicates that parental behaviors shape adolescents' alcohol consumption, but it is unclear whether mothers or fathers have a more significant impact and how this relationship varies by sex and developmental stage. This study examines the effects of parental alcohol consumption patterns on adolescents in Russia using a large representative sample.

Methods: The study employs pooled data from the Russia Longitudinal Monitoring Survey-Higher School of Economics (RLMS-HSE) from 2006 to 2019.

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Background: Dexrazoxane has been studied for its ability to prevent anthracycline-induced cardiac dysfunction (AICD) in several trials but its use in clinical practice remains limited. This is related to the low to moderate quality of the generated evidence, safety concerns and restricted prescribing indications. Additional randomized trials are needed before this drug can be routinely integrated into cardio-oncology clinical practice.

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We synthesized and investigated a new series of Sm 1,3-diketonate complexes with CF-homologous thiophene-containing ligands. A clear correlation was found between the number of fluorine atoms in the 1,3-diketone's carbon chain and the luminescent properties of the samarium(III) complexes. The ligand modification method employed facilitates targeted and significant enhancements in the photoluminescence quantum yield (PLQY).

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Objectives: Bacille Calmette-Guérin (BCG) vaccination has off-target effects on disease risk for unrelated infections and immune responses to vaccines. This study aimed to determine the immunomodulatory effects of BCG vaccination on immune responses to vaccines against SARS-CoV-2.

Methods: Blood samples, from a subset of 275 SARS-CoV-2-naïve healthcare workers randomised to BCG vaccination (BCG group) or no BCG vaccination (Control group) in the BRACE trial, were collected before and 28 days after the primary course (two doses) of ChAdOx1-S (Oxford-AstraZeneca) or BNT162b2 (Pfizer-BioNTech) vaccination.

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The biopharmaceutical industry has witnessed significant growth in the development and approval of biosimilars. These biosimilars aim to provide cost-effective alternatives to expensive originator biosimilars, alleviating financial pressures within healthcare. The manufacturing of biosimilars is a highly complex process that involves several stages, each of which must meet strict regulatory standards to ensure that the final product is highly similar to the reference biologic.

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Short-term evolutionary implications of an introgressed size-determining supergene in a vulnerable population.

Nat Commun

January 2025

Florida Museum of Natural History, Dickinson Hall, 1659 Museum Road, Gainesville, FL, 32611, USA.

The Thorny Skate (Amblyraja radiata) is a vulnerable species displaying a discrete size-polymorphism in the northwest Atlantic Ocean (NWA). We conducted whole genome sequencing of samples collected across its range. Genetic diversity was similar at all sampled sites, but we discovered a ~ 31 megabase bi-allelic supergene associated with the size polymorphism, with the larger size allele having introgressed in the last ~160,000 years B.

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Metastatic uveal melanoma (UM) patients often initially present with limited symptoms despite a poor prognosis, complicating communication with patients and caregivers. Early Together (NCT04728113) is a randomized Phase III trial that integrates early palliative care through systematic joint visits involving the palliative care team and the medical oncologist, compared with standard oncological care, in 162 metastatic UM patients beginning systemic treatment. This collaboration aims to enhance patient functioning, improve quality of life and facilitate coping mechanisms.

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Background & Objective: Currently, there are many implants in clinical use, making it hard to choose the right one for the patient. The success rate of an implant depends on its diameter, length, and direction of insertion in bone. In implant dentistry, Finite Element Analysis (FEA) simulates intraoral conditions in vitro and analyzes the effects of implant material, diameter, size, and other components related to oral structure on the implant and peri-implant tissues.

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Negative gas adsorption transitions and pressure amplification phenomena in porous frameworks.

Chem Soc Rev

January 2025

Faculty of Chemistry and Food Chemistry, TU Dresden, Bergstrasse 66, 01062 Dresden, Germany.

Nanoporous solids offer a wide range of functionalities for industrial, environmental, and energy applications. However, only a limited number of porous materials are responsive, the nanopore dynamically alters its size and shape in response to external stimuli such as temperature, pressure, light or the presence of specific molecular stimuli adsorbed inside the voids deforming the framework. Adsorption-induced structural deformation of porous solids can result in unique counterintuitive phenomena.

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Nuclear calcium signaling in D1 receptor-expressing neurons of the nucleus accumbens regulates molecular, cellular and behavioral adaptations to cocaine.

Biol Psychiatry

January 2025

Institute of Biology Paris-Seine, laboratory Neuroscience Paris-Seine, CNRS, INSERM, Sorbonne Université, UPMC Université Paris 06 F-75005, Paris, France. Electronic address:

Background: The persistence of cocaine-evoked adaptations relies on gene regulations within the reward circuit, especially in the ventral striatum (i.e., nucleus accumbens (NAc)).

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Internal cancers in solid organ transplant recipients with a post-transplant skin cancer: a cohort study.

J Invest Dermatol

January 2025

Department of Health Services Research University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.

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Alzheimer's disease (AD) pathogenesis is correlated with the membrane content of various lipid species, including cholesterol, whose interactions with amyloid precursor protein (APP) have been extensively explored. Amyloid-β peptides triggering AD are products of APP cleavage by secretases, which differ depending on the APP and secretase location relative to ordered or disordered membrane microdomains. We used high-resolution NMR to probe the interactions of the cholesterol analog with APP transmembrane domain in two membrane-mimicking systems resembling ordered or perturbed lipid environments (bicelles/micelles).

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Nanocrystalline TiO is a perspective semiconductor gas-sensing material due to its long-term stability of performance, but it is limited in application because of high electrical resistance. In this paper, a gas-sensing nanocomposite material with p-p heterojunction is introduced based on p-conducting Cr-doped TiO in combination with p-conducting CrO. Materials were synthesized via a single-step flame spray pyrolysis (FSP) technique and comprehensively studied by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area analysis, transition electron microscopy (TEM), energy dispersive X-ray (EDX) spectroscopy, X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and Raman spectroscopy.

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Biodegradation of Phenol at High Initial Concentration by 3D Strain: Biochemical and Genetic Aspects.

Microorganisms

January 2025

Laboratory of Microbial Enzymology, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, 142290 Pushchino, Russia.

Phenolic compounds are an extensive group of natural and anthropogenic organic substances of the aromatic series containing one or more hydroxyl groups. The main sources of phenols entering the environment are waste from metallurgy and coke plants, enterprises of the leather, furniture, and pulp and paper industries, as well as wastewater from the production of phenol-formaldehyde resins, adhesives, plastics, and pesticides. Among this group of compounds, phenol is the most common environmental pollutant.

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