1,079,416 results match your criteria: "France; Universite Paris cite[Affiliation]"

Recombination is advantageous over the long-term, as it allows efficient selection and purging deleterious mutations. Nevertheless, recombination suppression has repeatedly evolved in sex and mating-type chromosomes. The evolutionary causes for recombination suppression and the proximal mechanisms preventing crossing overs are poorly understood.

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Time-resolved, rapid-scan Fourier transform infrared (FT-IR) difference spectra have been recorded upon illumination on photosynthetic reaction centers (RCs) from under fixed hydration conditions (relative humidity = 76%). Two different illumination schemes were adopted. Whereas the use of a laser flash (duration: 7 ns) made it possible to follow the kinetics of recombination of the light-induced state PQ to the neutral state PQ, the use of a 20.

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The diaspore-type crystalline structure is historically well-known in mineralogy, but it has also been widely studied for various applications in the field of catalysis, electrocatalysis, and batteries. However, once two anions of similar ionic size but different electronegativity, such as F and O or more precisely OH, are combined, the knowledge of the location of these two anions is of paramount importance to understand the chemical properties in relation with the generation of hydrogen bonds. Coprecipitation and hydrothermal routes were used to prepare hydroxide-fluorides that crystallize all in an orthorhombic structure with four formula units per cell.

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Introduction: The specificity of HIV-1 DNA genotypic resistance tests (GRTs) is hampered by the detection of the APOBEC-context drug resistance mutations (AC DRMs), usually harboured by replication-incompetent proviruses. We sought factors associated with defective sequences in the HIV-1 pol region. In addition, AC DRMs and their link with defective sequences were investigated.

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Tropical peas can be used as both animal feed and human food but the nutritional quality of their proteins for humans is currently poorly documented. Here, 3 varieties of tropical peas were studied at two stages of seed maturity (green or dry): Cajanus Cajan (CC), Vigna Unguiculata (VU) and Lablab Purpureus (LP). Pea seeds were prepared traditionally (soaking and cooking).

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Besides their nutritional role, proteins are recognized for their ability to regulate both short- and long-term energy homeostasis. However, studies investigating the effects of proteins based on their quality and origin remain limited and often lack comparability. Nonetheless, existing research consistently underscores the influence of proteins on food intake regulation.

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This study provides predictive models for G. stearothermophilus spores inactivation in four plant-based drinks, half-skimmed bovine milk and Brain Heart Infusion (BHI) broth and while also evaluating of matrix effect on inactivation. Heat inactivation was performed using the capillary tube method within the temperature range 115-127 °C.

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Our previous study revealed the benefits of chronic melatonin intake on dynamic postural imbalance and poor walking capacity induced by multiple sclerosis but its impact on muscle weakness and poor manual dexterity related to this disease has not yet been explored. The objective of the current study was to investigate the effectiveness of 12-week melatonin supplementation on motor skills (i.e.

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Background And Aim: Human dental pulp stem cells (hDPSCs) constitute a promising alternative for central nervous system (CNS) cell therapy. Unlike other human stem cells, hDPSCs can be differentiated, without genetic modification, to neural cells that secrete neuroprotective factors. However, a better understanding of their real capacity to give rise to functional neurons and integrate into synaptic networks is still needed.

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Background: Conflicting data exist regarding sex-specific outcomes after cardiac arrest. This study investigates sex disparities in the provision of critical care and outcomes of in-hospital (IHCA) and out-of-hospital cardiac arrest (OHCA) patients.

Methods: Analysis of adult cardiac arrest patients admitted to certified Swiss intensive care units (ICUs) (01/2008-12/2022) using the nationwide prospective ICU registry.

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Background: The COVID-19 pandemic prompted significant shifts to teleworking, raising questions about potential impacts on employee wellbeing. This study examined the association between self-reported changes to teleworking frequency (relative to before the pandemic) and two indicators of occupational burnout: emotional exhaustion and professionally diagnosed burnout.

Methods: Data were derived from two samples from a digital cohort study based in Geneva, Switzerland: one population-based, and one from a sample of workers who were likely mobilized in the early stages of the COVID-19 pandemic.

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Heart failure (HF), a chronic and progressive disease, is increasing in prevalence worldwide and is associated with increased hospitalizations and death. Despite notable improvements in medical therapy for HF, patients are still at risk of future negative outcomes. Current guidelines recommend four classes of medication for treating patients with HF, deemed guideline-directed medical therapy (GDMT).

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Effectiveness and safety of biosimilars in pediatric inflammatory bowel diseases: an observational longitudinal study on the French National Health Data System.

World J Pediatr

January 2025

EPI-PHARE, French National Agency for Medicines and Health Products Safety (ANSM) and French National Health Insurance (CNAM), 143-147 Boulevard Anatole France, 93285, Saint-Denis, France.

Background: Data on biosimilar use in pediatric inflammatory bowel diseases (IBD) are scarce compared to the status of studies in adults, resulting in limitations in its treatment. We compared effectiveness and safety of biosimilars versus originators in this population.

Methods: We used data from the French National Health Data System to identify children (less than 18 years old at treatment initiation) initiating treatment with a biosimilar or the originator infliximab or adalimumab for Crohn's disease (CD) or ulcerative colitis (UC), from first biosimilar launch (January 2015 and October 2018, respectively) to 31 December 2022.

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We demonstrate unprecedented control and enhancement of thermal radiation using subwavelength conical membranes of silicon nitride. Based on fluctuational electrodynamics, we find that the focusing of surface phonon-polaritons along these membranes enhances their far-field thermal conductance by three orders of magnitude over the blackbody limit. Our calculations reveal a non-monotonic dependence of the thermal conductance on membrane geometry, with a characteristic radiation plateau emerging at small front widths due to competing effects of the polariton focusing and radiative area.

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We study experimentally at the macroscopic and microstructure scale a dense suspension of non-Brownian neutrally buoyant spherical particles experiencing periodic reversals of flow at constant rate between parallel plates and tracked individually. We first characterize the quasi-steady state reached at the end of half periods. The volume fraction of particles increases from the walls to the center as a result of migration induced by the nonuniform strain rate.

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Can robotic arm-assisted total knee arthroplasty be applied to valgus deformity.

Arch Orthop Trauma Surg

January 2025

Department of Orthopaedic Surgery, University Hospital centre (Saint Etienne), Avenue Albert Raimond, Saint-priest-en-Jarez, 42270, France.

Introduction: Total knee arthroplasty (TKA) in valgus knees is challenging. Optimal ligament balance, implant neutral or moderate valgus alignment are crucial but conventional instrumentations usually lead to outliers. Robotic arm assisted TKA (RATKA) advantages could answer this challenge.

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Multiplex digital PCR enables sensitive detection of resistance to BTK inhibitors.

Ann Hematol

January 2025

Service de Thérapie Cellulaire et d'Hématologie Clinique, CHU Estaing, Clermont-Ferrand, France.

The advent of BTK inhibitors has been transformative in the management of patients with chronic lymphocytic leukemia or other B-cell lymphoproliferative disorders. However, emergence of BTK or PLCG2 mutations lead to resistance to these compounds and are now a growing concern in clinical practice. Assessing BTK mutations is now becoming a priority to guide the therapeutic decision at further relapse.

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A living library concept to capture the dynamics and reactivity of mixed-metal clusters for catalysis.

Nat Chem

January 2025

TUM School of Natural Sciences, Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry and Catalysis Research Center, Technical University of Munich, Garching, Germany.

The exploration of ligated metal clusters' chemical space is challenging, partly owing to an insufficiently targeted access to reactive clusters. Now, dynamic mixtures of clusters, defined as living libraries, are obtained through organometallic precursor chemistry. The libraries are populated with interrelated clusters, including transient and highly reactive ones, as well as more accessible but less reactive species.

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Inferior frontal sulcal hyperintensities (IFSH) observed on fluid-attenuated inversion recovery (FLAIR) MRI have been proposed as indicators of elevated cerebrospinal fluid waste accumulation in cerebral small vessel disease (CSVD). However, to validate IFSH as a reliable imaging biomarker, further replication studies are required. The objective of this study was to investigate associations between IFSH and CSVD, and their potential repercussions, i.

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Tick-borne encephalitis (TBE) is an increasing health threat in Sweden and elsewhere in Europe. TBE vaccination is commonly recommended in Sweden, but limited data are available on uptake, effectiveness, and impact of TBE vaccination. General population surveys conducted in 2019-2022 were used to estimated TBE vaccine uptake.

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The evolution of eukaryotes is a fundamental event in the history of life. The closest prokaryotic lineage to eukaryotes, the Asgardarchaeota, encode proteins previously found only in eukaryotes, providing insight into their archaeal ancestor. Eukaryotic cells are characterized by endomembrane organelles, and the Arf family GTPases regulate organelle dynamics by recruiting effector proteins to membranes upon activation.

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Studies on triaxial contact stresses and asphalt pavement rutting are of great significance for traffic safety and the durability of the asphalt pavement. Our new approach considers more evaluating indicators by investigating compressive creep, vertical, and longitudinal permanent deformation to analyse asphalt pavement rutting under triaxial contact stress during typical driving conditions. For this purpose, firstly sophisticated three-dimensional finite element models encompassing the truck-bus tire and asphalt pavement temperature are developed.

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Malaria is caused by protozoan parasites of the genus Plasmodium and remains a global health concern. The parasite has a highly adaptable life cycle comprising successive rounds of asexual replication in a vertebrate host and sexual maturation in the mosquito vector Anopheles. Genetic manipulation of the parasite has been instrumental for deciphering the function of Plasmodium genes.

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