25 research outputs found
Complete Chromosome Sequence of Carnobacterium maltaromaticum LMA 28
Within the lactic acid bacterium genus Carnobacterium, Carnobacterium maltaromaticum is one of the most frequently isolated species from natural environments and food. It potentially plays a major role in food product biopreservation. We report here on the 3.649-Mb chromosome sequence of C. maltaromaticum LMA 28, which was isolated from ripened soft cheese
Evaluation of checkpoint kinase targeting therapy in Acute Myeloid Leukemia with complex karyotype
Homogenization of cortical bone reveals that the organization and shape of pores marginally affect elasticity
International audienc
Impact of a Model Used to Simulate Chronic Socio-Environmental Stressors Encountered during Spaceflight on Murine Intestinal Microbiota
International audienc
Mémoires perdues, mémoires vives
Mémoires perdues, mémoires vives : de la crypte de Dracula aux lieux de mémoire joyciens, du chien des Baskerville à l'écriture muséographique de Seamus Heaney, du modernisme (Gertrude Stein) au postmodernisme américain (John Barth), ce volume explore les territoires entre le blanc de l'oubli et les traces du passé dans la littérature et les arts visuels (peinture, sculpture, photographie, land art) du monde anglophone (XIXe-XXe siÚcles)
Ex vivo cortical porosity and thickness predictions at the tibia using full-spectrum ultrasonic guided-wave analysis
International audiencePURPOSE: Cortical thickness (Ct.Th) and porosity (Ct.Po) are key parameters for the identification of patients with fragile bones. The main objective of this ex vivo study was to validate the measurement of Ct.Po and Ct.Th at the tibia using a non-ionizing, low-cost, and portable 500-kHz ultrasound axial transmission system. Additional ultrasonic velocities and site-matched reference parameters were included in the study to broaden the analysis.METHODS: Guided waves were successfully measured ex vivo in 17 human tibiae using a novel 500-kHz bi-directional axial transmission probe. Theoretical dispersion curves of a transverse isotropic free plate model with invariant matrix stiffness were fitted to the experimental dispersion curves in order to estimate Ct.Th and Ct.Po. In addition, the velocities of the first arriving signal (Ï
FAS) and A0 mode (Ï
A0) were measured. Reference Ct.Po, Ct.Th, and vBMD were obtained from site-matched micro-computed tomography. Scanning acoustic microscopy (SAM) provided the acoustic impedance of the axial cortical bone matrix.RESULTS: The best predictions of Ct.Po (R2â=â0.83, RMSEâ=â2.2%) and Ct.Th (R2â=â0.92, RMSEâ=â0.2 mm, one outlier excluded) were obtained from the plate model. The second best predictors of Ct.Po and Ct.Th were vBMD (R2â=â0.77, RMSEâ=â2.6%) and Ï
A0 (R2â=â0.28, RMSEâ=â0.67 mm), respectively.CONCLUSIONS: Ct.Th and Ct.Po were accurately predicted at the human tibia ex vivo using a transverse isotropic free plate model with invariant matrix stiffness. The model-based predictions were not further enhanced when we accounted for variations in axial tissue stiffness as reflected by the acoustic impedance from SAM
Emerging Corynebacterium diphtheriae Species Complex Infections, RĂ©union Island, France, 2015â2020
Clinical, epidemiologic, and microbiologic analyses revealed emergence of 26 cases of Corynebacterium diphtheriae species complex infections on RĂ©union Island, France, during 2015â2020. Isolates were genetically diverse, indicating circulation and local transmission of several diphtheria sublineages. Clinicians should remain aware of the risk for diphtheria and improve diagnostic methods and patient management
Massif montagneux â Les PyrĂ©nĂ©es
La montagne est un milieu vulnĂ©rable vis-Ă -vis du changement climatique comme lâindiquentdĂ©jĂ les Ă©volutions palĂ©oclimatiques.InĂ©dite Ă lâĂ©chelle des PyrĂ©nĂ©es-Atlantiques, lâanalyse de longues sĂ©ries homogĂ©nĂ©isĂ©es dedonnĂ©es sur la pĂ©riode 1950-2013 indique une augmentation des tempĂ©ratures de +0,2 °C Ă +0,3 °C par dĂ©cennie. Les projections climatiques Ă©tablissent la poursuite du rĂ©chauffement :Ă l'horizon 2071-2100, selon le scĂ©nario RCP 8.5, le rĂ©chauffement pourrait atteindre 4°C. EnmatiĂšre dâenneigement, en dĂ©pit dâune forte variabilitĂ© inter-annuelle et dâune tendance plusmarquĂ©e Ă basse altitude, une perte de 2 Ă 3 jours d'enneigement par dĂ©cennie est observĂ©edepuis le dĂ©but des annĂ©es 1980 ; les projections futures prĂ©sagent dâune accĂ©lĂ©rationsensible Ă partir des annĂ©es 2050. Ces changements physiques ont des consĂ©quencessur la biodiversitĂ© et le fonctionnement des Ă©cosystĂšmes ainsi quâun impact Ă©conomiqueet social majeur. Les aspects opĂ©rationnels de lâappropriation du changement climatique,des stratĂ©gies dâadaptation et dâattĂ©nuation adoptĂ©es, mis en oeuvre Ă diffĂ©rentes Ă©chellesterritoriales tĂ©moignent du besoin de mieux comprendre les interactions entre processusenvironnementaux et sociaux dans les espaces montagnards, avec au centre la question desperceptions et des reprĂ©sentations du changement climatique, qui demeure un volet essentielpour saisir les freins et les leviers potentiels Ă lâadaptation des sociĂ©tĂ©s locales. En cherchantune meilleure rĂ©silience climatique et une planification plus durable de la totalitĂ© du modĂšleĂ©conomique actuel, anticipation et adaptation sont les grands dĂ©fis auxquels les diffĂ©rentsterritoires de montagne devront faire face. Cela passe nĂ©cessairement par une connaissanceaccrue de la question climatique et des risques naturels associĂ©s.Concernant la montagne limousine, sa position en tĂȘte de bassin et ses ressourcesessentiellement de flux constituent un enjeu particulier vis-Ă -vis du changement climatique.Le maintien de zones humides et la biodiversitĂ© associĂ©e est conditionnĂ© par la prĂ©servationde la ressource en eau tandis que les pratiques agricoles, sylvicoles et dâĂ©levage vont devoirquant Ă elles sâadapter Ă davantage de sĂ©cheresses. Sur le plan socio-environnemental, lescaractĂ©ristiques dĂ©mographiques (faible densitĂ©, mĂ©nages modestes) et lâanciennetĂ© du bĂątirequiĂšrent une attention particuliĂšre dans la mise en place de politiques dâaccompagnementdes territoires vers une meilleure rĂ©silience.Nous, ou les gĂ©nĂ©rations futures, assisterons sans aucun doute Ă une recomposition despaysages montagnards. Sans rĂ©action adaptĂ©e rapide, le risque est grand de laisser semodifier des services Ă©cologiques essentiels et dâimpacter les activitĂ©s et le bien-ĂȘtre dâunepartie de la population dĂ©pendant des ressources de haute et moyenne altitudes