3,773 results match your criteria: "Universite Bordeaux[Affiliation]"
iScience
April 2022
UMR 5199 PACEA, CNRS, Université de Bordeaux, 33615 Pessac, France.
The Iron Age period occupies an important place in French history because the Gauls are regularly presented as the direct ancestors of the extant French population. We documented here the genomic diversity of Iron Age communities originating from six French regions. The 49 acquired genomes permitted us to highlight an absence of discontinuity between Bronze Age and Iron Age groups in France, lending support to a cultural transition linked to progressive local economic changes rather than to a massive influx of allochthone groups.
View Article and Find Full Text PDFJ Clin Epidemiol
August 2022
Université Paris Est Creteil, IMRB, Inserm, F-94000 Creteil, France; AP-HP, Henri-Mondor Hospital, Public Health and Clinical Research Unit (URC-Mondor), F-94010 Creteil, France.
Cancer Res
April 2022
Centre de Recherche des Cordeliers, Sorbonne Université, Université de Paris, INSERM, Paris, France.
Unlabelled: Oncogene activation leads to replication stress and promotes genomic instability. Here we combine optical mapping and whole-genome sequencing (WGS) to explore in depth the nature of structural variants (SV) induced by replication stress in cyclin-activated hepatocellular carcinomas (CCN-HCC). In addition to classical tandem duplications, CCN-HCC displayed frequent intra-chromosomal and interchromosomal templated insertion cycles (TIC), likely resulting from template switching events.
View Article and Find Full Text PDFJ Clin Lipidol
June 2022
Service de Biochimie, Groupe Hospitalier Pellegrin, CHU de Bordeaux - Place Amélie Raba Léon, F-33000 Bordeaux, France; Université Bordeaux, 146 rue Léo Saignat, F-33076 Bordeaux, France. Electronic address:
Background: Familial hypercholesterolemia (FH) is the most common genetic disorder associated with a high risk for premature atherosclerotic cardiovascular disease attributable to increased levels of LDL-cholesterol (LDL-C) from birth. FH is both underdiagnosed and undertreated.
Objective: We describe the clinical, biological, and genetic characteristics of 147 patients in France with clinical FH (including a group of 26 subjects aged < 20 years); we explore how best to detect patients with monogenic FH.
PLoS One
April 2022
Institut National de Recherches Archeologiques Preventives (INRAP), Paris, France.
Multiple factors have been proposed to explain the disappearance of Neandertals between ca. 50 and 40 kyr BP. Central to these discussions has been the identification of new techno-cultural complexes that overlap with the period of Neandertal demise in Europe.
View Article and Find Full Text PDFViruses
March 2022
UMR 1332 Biologie du Fruit et Pathologie, INRAE Université Bordeaux, 71 Av. E. Bourlaux, CS20032, CEDEX, 33882 Villenave d'Ornon, France.
REMORIN proteins belong to a plant-specific multigene family that localise in plasma membrane nanodomains and in plasmodesmata. We previously showed that in , group 1 StREM1.3 limits the cell-to-cell spread of a potexvirus without affecting viral replication.
View Article and Find Full Text PDFBiology (Basel)
February 2022
Mathematics Department, Vanderbilt University, Nashville, TN 37212, USA.
In this article we study the efficacy of vaccination in epidemiological reconstructions of COVID-19 epidemics from reported cases data. Given an epidemiological model, we developed in previous studies a method that allowed the computation of an instantaneous transmission rate that produced an exact fit of reported cases data of the COVID-19 outbreak. In this article, we improve the method by incorporating vaccination data.
View Article and Find Full Text PDFBMC Health Serv Res
March 2022
Santé publique France, Saint Maurice, France.
Background: The international terrorism threat urges societies to invest in the planning and organization of psychosocial care. With the aim to contribute to cross-national learning, this study describes the content, target populations and providers of psychosocial care to civilians after terrorist attacks in Norway, France and Belgium.
Methods: We identified and reviewed pre- and post-attack policy documents, guidelines, reports and other relevant grey literature addressing the psychosocial care response to terrorist attacks in Oslo/Utøya, Norway on 22 July 2011; in Paris, France on 13 November 2015; and in Brussels, Belgium on 22 March 2016.
Materials (Basel)
March 2022
UMR 5026, ICMCB, CNRS, Universite Bordeaux, F-33600 Pessac, France.
Nowadays, synthetic diamonds are easy to fabricate industrially, and a wide range of methods were developed during the last century. Among them, the high-pressure-high-temperature (HP-HT) process is the most used to prepare diamond compacts for cutting or drilling applications. However, these diamond compacts contain binder, limiting their mechanical and optical properties and their substantial uses.
View Article and Find Full Text PDFBiomedicines
February 2022
ImmunoConcEpT, CNRS, Université Bordeaux, UMR 5164, 146 Rue Léo Saignat, F-33000 Bordeaux, France.
Antibody-mediated rejection (ABMR) is the leading cause of allograft failure in kidney transplantation. Its histological hallmark is represented by lesions of glomerulitis i.e.
View Article and Find Full Text PDFSci Rep
March 2022
Dipartimento di Scienze dell'Antichità, Sapienza University of Rome, Rome, Italy.
The late Middle Pleistocene, starting at around 300 ka, witnessed large-scale biological and cultural dynamics in hominin evolution across Africa including the onset of the Middle Stone Age that is closely associated with the evolution of our species-Homo sapiens. However, archaeological and geochronological data of its earliest appearance are scarce. Here we report on the late Middle Pleistocene sequence of Wadi Lazalim, in the Sahara of Southern Tunisia, which has yielded evidence for human occupations bracketed between ca.
View Article and Find Full Text PDFNat Commun
March 2022
CNRS, Université Bordeaux, Bordeaux INP, ICMCB, UMR 5026, Pessac, France.
Intermetallics represent an important family of compounds, in which insertion of light elements (H, B, C, N) has been widely explored for decades to synthesize novel phases and promote functional materials such as permanent magnets or magnetocalorics. Fluorine insertion, however, has remained elusive so far since the strong reactivity of this atypical element, the most electronegative one, tends to produce the chemical decomposition of these systems. Here, we introduce a topochemical method to intercalate fluorine atoms into intermetallics, using perfluorocarbon reactant with covalent C-F bonds.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
June 2022
Liryc, Electrophysiology and Heart Modeling Institute, Fondation Bordeaux Université, Pessac-Bordeaux, France.
Cardiac fiber direction is an important factor determining the propagation of electrical activity, as well as the development of mechanical force. In this article, we imaged the ventricles of several species with special attention to the intraventricular septum to determine the functional consequences of septal fiber organization. First, we identified a dual-layer organization of the fiber orientation in the intraventricular septum of ex vivo sheep hearts using diffusion tensor imaging at high field MRI.
View Article and Find Full Text PDFScience
April 2022
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
Recurrent novae are repeating thermonuclear explosions in the outer layers of white dwarfs, due to the accretion of fresh material from a binary companion. The shock generated when ejected material slams into the companion star's wind can accelerate particles. We report very-high-energy (VHE; [Formula: see text]) gamma rays from the recurrent nova RS Ophiuchi, up to 1 month after its 2021 outburst, observed using the High Energy Stereoscopic System (H.
View Article and Find Full Text PDFLangmuir
March 2022
Aix Marseille University, CNRS, Université de Toulon, IM2NP, UMR 7334, F-13397 Marseille, France.
This work describes the self-assembled monolayers (SAMs) of two ferrocene derivatives with two anchoring groups (at the bottom and at the top of the SAM) deposited on ultraflat template-stripped gold substrates by cyclic voltammetry and analyzed by complementary surface characterization techniques. The SAM of each molecule is deposited by three different protocols: direct deposition (one step), click reaction on the surface (two steps), and reverse click reaction on the surface (two steps). The SAM structure is well studied to determine the SAM orientation, SAM arrangement, and ferrocene position within the SAM.
View Article and Find Full Text PDFJ Phys Chem B
March 2022
GSM Institut des Sciences Moléculaires, CNRS (UMR 5255), Université Bordeaux I, 351, Cours de la Libération, 33405 Talence Cedex, France.
The state of aggregation at room temperature of -butanol (TBH) and perfluoro -butanol (TBF) liquid mixtures is assessed by vibrational spectroscopy (Raman and infrared) and X-ray diffraction and analyzed using density functional theory (DFT) and molecular dynamics (MD) simulations. It is shown that larger clusters (mostly tetramers) of TBH are destroyed upon dilution with TBF. Small oligomers, monomers, and mainly heterodimers are present at the equimolar concentration.
View Article and Find Full Text PDFEur Eat Disord Rev
May 2022
Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France.
Objective: To determine if adolescents and adults diagnosed with anorexia nervosa differ in their levels of cognitive flexibility and attention to detail independently of potential confounds.
Method: Sixty-two adolescents and 54 adults were assessed while receiving inpatient treatment and completed the following self-reports: Eating Disorders Examination Questionnaire, Maudsley Obsessive Compulsive Inventory and Hospital Anxiety and Depression scale. Performance-based evaluations included the Wisconsin Card Sorting Test Computerised Version, the Comprehensive Trail Making Test, the Brixton Spatial Anticipation Test, the Rey Complex Figure and the Group Embedded Figures Test.
J Hepatol
May 2022
Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université de Paris, F-75006 Paris, France; Functional Genomics of Solid Tumors Laboratory, équipe labellisée Ligue Nationale contre le Cancer, Labex OncoImmunology, F-75006, Paris, France; Hôpital Européen Georges Pompidou, APHP, F-75015 Paris, France. Electronic address:
Nat Genet
March 2022
European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart: ERN GUARD-Heart, .
Chemistry
April 2022
Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France.
1,1,4,4-Tetracyanobutadienes (TCBDs) bearing a large diversity of fluorophores were prepared following a multi-step synthesis. In a crucial last step, all compounds were obtained from the corresponding ynamides, which were particularly suitable for the formation of the TCBDs in the presence of tetracyanoethylene via a [2+2] cycloaddition/retroelectrocyclization step (CA-RE). Several fluorenyl derivatives in addition to phenanthrenyl and terphenyl ones provided ynamide-based TCBDs affording remarkable emission properties covering a large range of wavelengths.
View Article and Find Full Text PDFEur Spine J
June 2022
Department of Orthopedic Surgery, Columbia University Medical Center, The Spine Hospital at New York Presbyterian, NY, USA.
Background: The purpose of this study was to investigate the affecting factors on pelvic incidence (PI) and to test the hypothesis that PI changes even after skeletal maturity probably due to hypermobility of the sacroiliac joint using a large international multi-center database.
Methods: A prospective and cross-sectional healthy adult volunteers, ages 18-80 years, across 5 countries were used. Radiographic measurements included standard whole body alignment parameters.
Phys Med
March 2022
CNRS, Université Bordeaux, CENBG, UMR5797, Gradignan F-33170, France. Electronic address:
This paper describes in detail the implementation of Geant4 Livermore electromagnetic physics models based on the EPICS2017 database for the low energy transport of photons. These models describe four photon processes: gamma conversion, Compton scattering, photoelectric effect and Rayleigh scattering. New parameterizations based on EPICS2017 were performed for scattering functions of Compton effect, subshell cross-sections of the photoelectric effect and form factors of Rayleigh scattering, in order to improve the precision of fitted values compared to tabulated values.
View Article and Find Full Text PDFPLoS One
March 2022
Histoire Naturelle de l'Homme Préhistorique (HNHP, UMR 7194)-Muséum National d'Histoire Naturelle, Sorbonne Universités, CNRS, UPVD, Paris, France.
North African coastal Middle Stone Age (MSA) sites are key to study the development and expansion of early H. sapiens. El Mnasra cave on the Atlantic coast of Morocco (Témara region) is a crucial site associated with MSA archaeological materials considered advanced cognitive hallmarks of behavioural innovation, such as numerous Nassariidae perforated shells, hematite pigments, bones industry and coastal resources exploitation.
View Article and Find Full Text PDFSci Adv
February 2022
Aix-Marseille Université, CNRS, Min. Culture, UMR 7269, LAMPEA, Maison Méditerranéenne des Sciences de l'Homme, BP 647, 5 rue du Château de l'Horloge, F-13094, Aix-en-Provence Cedex 2, France.
Determining the extent of overlap between modern humans and other hominins in Eurasia, such as Neanderthals and Denisovans, is fundamental to understanding the nature of their interactions and what led to the disappearance of archaic hominins. Apart from a possible sporadic pulse recorded in Greece during the Middle Pleistocene, the first settlements of modern humans in Europe have been constrained to ~45,000 to 43,000 years ago. Here, we report hominin fossils from Grotte Mandrin in France that reveal the earliest known presence of modern humans in Europe between 56,800 and 51,700 years ago.
View Article and Find Full Text PDFJ Phys Chem A
February 2022
Université Bordeaux, CNRS, LAB, UMR 5804, F-33270 Floirac, France.
The reaction between atomic carbon in its ground electronic state, C(P), and nitrous oxide, NO, has been studied below room temperature due to its potential importance for astrochemistry, with both species considered to be present at high abundance levels in a range of interstellar environments. On the experimental side, we measured rate constants for this reaction over the 50-296 K range using a continuous supersonic flow reactor. C(P) atoms were generated by the pulsed photolysis of carbon tetrabromide at 266 nm and were detected by pulsed laser-induced fluorescence at 115.
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