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Vaney JB, Crivello JC, Morin C, Delaizir G, Carreaud J, Piarristeguy A, Monnier J, Alleno E, Pradel A, Lopes EB, Gonçalves AP, Dauscher A, Candolfi C, Lenoir B. Electronic structure, low-temperature transport and thermodynamic properties of polymorphic β-As2Te3. RSC Adv 2016. [DOI: 10.1039/c6ra01770c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first-order lattice distortion undergone by β-As2Te3 around 200 K results in a cycling effect on its transport properties.
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Fuseya Y, Zhu Z, Fauqué B, Kang W, Lenoir B, Behnia K. Origin of the Large Anisotropic g Factor of Holes in Bismuth. PHYSICAL REVIEW LETTERS 2015; 115:216401. [PMID: 26636860 DOI: 10.1103/physrevlett.115.216401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Indexed: 06/05/2023]
Abstract
The ratio of the Zeeman splitting to the cyclotron energy (M=ΔE_{Z}/ℏω_{c}) for holelike carriers in bismuth has been quantified with great precision by many experiments performed during the past five decades. It exceeds 2 when the magnetic field is along the trigonal axis and vanishes in the perpendicular configuration. Theoretically, however, M is expected to be isotropic and equal to unity in a two-band Dirac model. We argue that a solution to this half-a-century-old puzzle can be found by extending the k·p theory to multiple bands. Our model not only gives a quantitative account of the magnitude and anisotropy of M for holelike carriers in bismuth, but also explains its contrasting evolution with antimony doping and pressure, both probed by new experiments reported here. The present results have important implications for the magnitude and anisotropy of M in other systems with strong spin-orbit coupling.
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Morin C, Corallini S, Carreaud J, Vaney JB, Delaizir G, Crivello JC, Lopes EB, Piarristeguy A, Monnier J, Candolfi C, Nassif V, Cuello GJ, Pradel A, Goncalves AP, Lenoir B, Alleno E. Polymorphism in Thermoelectric As2Te3. Inorg Chem 2015; 54:9936-47. [DOI: 10.1021/acs.inorgchem.5b01676] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bouyrie Y, Candolfi C, Pailhès S, Koza MM, Malaman B, Dauscher A, Tobola J, Boisron O, Saviot L, Lenoir B. From crystal to glass-like thermal conductivity in crystalline minerals. Phys Chem Chem Phys 2015; 17:19751-8. [PMID: 26109211 DOI: 10.1039/c5cp02900g] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability of some materials with a perfectly ordered crystal structure to mimic the heat conduction of amorphous solids is a remarkable physical property that finds applications in numerous areas of materials science, for example, in the search for more efficient thermoelectric materials that enable to directly convert heat into electricity. Here, we unveil the mechanism in which glass-like thermal conductivity emerges in tetrahedrites, a family of natural minerals extensively studied in geology and, more recently, in thermoelectricity. By investigating the lattice dynamics of two tetrahedrites of very close compositions (Cu12Sb2Te2S13 and Cu10Te4S13) but with opposite glasslike and crystal thermal transport by means of powder and single-crystal inelastic neutron scattering, we demonstrate that the former originates from the peculiar chemical environment of the copper atoms giving rise to a strongly anharmonic excess of vibrational states.
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Alleno E, Bérardan D, Byl C, Candolfi C, Daou R, Decourt R, Guilmeau E, Hébert S, Hejtmanek J, Lenoir B, Masschelein P, Ohorodnichuk V, Pollet M, Populoh S, Ravot D, Rouleau O, Soulier M. Invited article: A round robin test of the uncertainty on the measurement of the thermoelectric dimensionless figure of merit of Co0.97Ni0.03Sb3. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:011301. [PMID: 25638064 DOI: 10.1063/1.4905250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A round robin test aiming at measuring the high-temperature thermoelectric properties was carried out by a group of European (mainly French) laboratories (labs). Polycrystalline skutterudite Co0.97Ni0.03Sb3 was characterized by Seebeck coefficient (8 labs), electrical resistivity (9 labs), thermal diffusivity (6 labs), mass volume density (6 labs), and specific heat (6 labs) measurements. These data were statistically processed to determine the uncertainty on all these measured quantities as a function of temperature and combined to obtain an overall uncertainty on the thermal conductivity (product of thermal diffusivity by density and by specific heat) and on the thermoelectric figure of merit ZT. An increase with temperature of all these uncertainties is observed, in agreement with growing difficulties to measure these quantities when temperature increases. The uncertainties on the electrical resistivity and thermal diffusivity are most likely dominated by the uncertainty on the sample dimensions. The temperature-averaged (300-700 K) relative standard uncertainties at the confidence level of 68% amount to 6%, 8%, 11%, and 19% for the Seebeck coefficient, electrical resistivity, thermal conductivity, and figure of merit ZT, respectively. Thermal conductivity measurements appear as the least accurate. The moderate value of the temperature-averaged relative expanded (confidence level of 95%) uncertainty of 17% on the mean of ZT is essential in establishing Co0.97Ni0.03Sb3 as a high temperature standard n-type thermoelectric material.
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Al Rahal Al Orabi R, Gougeon P, Gall P, Fontaine B, Gautier R, Colin M, Candolfi C, Dauscher A, Hejtmanek J, Malaman B, Lenoir B. X-ray Characterization, Electronic Band Structure, and Thermoelectric Properties of the Cluster Compound Ag2Tl2Mo9Se11. Inorg Chem 2014; 53:11699-709. [DOI: 10.1021/ic501939k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ernens I, Bousquenaud M, Lenoir B, Devaux Y, Wagner DR. Adenosine promotes angiogenesis through up-regulation of thrombospondin-1. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lenoir B, Noel A, Theresine M, Blacher S, Ernens I, Devaux Y, Wagner DR. Adenosine inhibits the proliferation of lymphatic endothelial cells. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hoffmann C, Falzone E, Dagain A, Cirodde A, Leclerc T, Lenoir B. Successful management of a severe combat penetrating brain injury. J ROY ARMY MED CORPS 2013; 160:251-4. [PMID: 24109110 DOI: 10.1136/jramc-2013-000121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We report the case of successful management of a transcranial penetrating high-energy transfer injury in a 20-year-old soldier. The bullet traversed both cerebral hemispheres and lacerated the superior sagittal sinus rendering him unconscious. We detail the care received at all stages following injury from 'Buddy Aid' on the battlefield, resuscitation by a forward medical team through to prompt neurosurgery within 2 h of injury. Subsequent aeromedical evacuation and continuing aggressive critical care has allowed the patient to survive with acceptable neurological impairment after what is generally considered an unsurvivable injury.
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Gupta S, Agarwal D, Tripathi S, Neeleshwar S, Panigrahi B, Jacquot A, Lenoir B, Avasthi D. Superiority of ion irradiation over annealing for enhancing the thermopower of PbTe thin films. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2013.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Falzone E, Libert N, Hoffmann C, Pasquier P, Clapson P, Debien B, Lenoir B. Tamponnade à pression basse mimant une cholécystite. ACTA ACUST UNITED AC 2012; 31:911-3. [DOI: 10.1016/j.annfar.2012.07.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 07/17/2012] [Indexed: 10/27/2022]
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Gonçalves A, Lopes E, Delaizir G, Vaney J, Lenoir B, Piarristeguy A, Pradel A, Monnier J, Ochin P, Godart C. Semiconducting glasses: A new class of thermoelectric materials? J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.03.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chubilleau C, Lenoir B, Migot S, Dauscher A. Laser fragmentation in liquid medium: A new way for the synthesis of PbTe nanoparticles. J Colloid Interface Sci 2011; 357:13-7. [DOI: 10.1016/j.jcis.2011.01.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 12/08/2010] [Accepted: 01/14/2011] [Indexed: 10/18/2022]
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Schaal JV, De Saint Maurice G, Clavier B, Ausset S, Lenoir B. [Antibodies against high frequency antigen and total knee replacement]. ACTA ACUST UNITED AC 2011; 30:436-9. [PMID: 21440406 DOI: 10.1016/j.annfar.2011.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 02/16/2011] [Indexed: 11/19/2022]
Abstract
We report the perioperative management of a woman expressing an antibody against high frequency red cell antigen (anti-Kel4 antibody anti-kpb) who was scheduled for a total knee replacement. A specific strategy was designed to afford this major orthopedic surgery, considering specially the occurrence of unusual bleeding higher than the average bleeding assessed in our hospital in this indication. The transfusion of incompatible red cells may be responsible for acute hemolytic reaction. An autologous transfusion program, including cryopreservation, erythropoietin and iron support, was provided. Three autologous red cells units were collected before surgery. Compatible homologous red cells units were also available at the French bank for rare blood groups. We report logistical and medical problems that have occurred during the perioperative period.
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de Saint Maurice G, Giraud N, Ausset S, Auroy Y, Lenoir B, Amalberti R. [Understanding mistake-proofing]. ACTA ACUST UNITED AC 2010; 30:51-6. [PMID: 21146351 DOI: 10.1016/j.annfar.2010.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Accepted: 10/25/2010] [Indexed: 11/15/2022]
Abstract
The mistake-proofing concept often refers to physical devices that prevent actors from making a wrong action. In anaesthesiology, one immediately thinks to specific design of outlets for medical gases. More generally, the principle of mistake-proofing is to avoid an error, by placing knowledge in the world rather than knowledge in the head. As it often happens in risk management, healthcare has received information transfers from the industry. Computer is changing the concept of mistake-proofing, initially based on physical design, such as aerospace and automotive industry. The mistake-proofing concept may be applied to prevention, detection, and mitigation of errors. The forcing functions are a specific part of mistake-proofing: they prevent a wrong action or they force a virtuous one. Grout proposes a little shortcut to identify mistake-proofing devices: "If it is not possible to picture it in action, it is probably not a mistake-proofing device".
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Pasquier P, Ausset S, Lenoir B. Perioperative cardiac complications: are we enjoying a smooth sailing on the Titanic? Acta Anaesthesiol Scand 2010; 54:389-91. [PMID: 20415953 DOI: 10.1111/j.1399-6576.2009.02185.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Candolfi C, Lenoir B, Chubilleau C, Dauscher A, Guilmeau E. High temperature thermoelectric properties of Mo3Sb(7-x)Te(x) (0.0≤x≤1.8). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:025801. [PMID: 21386262 DOI: 10.1088/0953-8984/22/2/025801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polycrystalline Mo(3)Sb(7-x)Te(x) samples with nominal Te concentrations of x=0.0, 0.3, 1.0, 1.6 and 2.2 have been synthesized by a powder metallurgical route. High temperature thermoelectric properties measurements including thermopower (300-900 K), electrical resistivity (300-800 K) and thermal conductivity (300-1000 K) were carried out. The temperature and compositional variations of the thermopower can be satisfactorily explained by assuming a single parabolic band model with dominant acoustic phonon scattering. However, such a simple model fails to describe the electronic thermal conductivity for low Te concentration. The dimensionless figure of merit, ZT, increases on increasing both the temperature and the Te content to reach a maximum value of 0.3 at 800 K that can be extrapolated to ∼0.6 at 1000 K for Mo(3)Sb(5.4)Te(1.6).
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Aydemir U, Candolfi C, Borrmann H, Baitinger M, Ormeci A, Carrillo-Cabrera W, Chubilleau C, Lenoir B, Dauscher A, Oeschler N, Steglich F, Grin Y. Crystal structure and transport properties of Ba8Ge43□3. Dalton Trans 2010; 39:1078-88. [DOI: 10.1039/b919726e] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Candolfi C, Lenoir B, Leszczynski J, Dauscher A, Tobola J, Clarke SJ, Smith RI. Neutron Diffraction, Electronic Band Structure, and Electrical Resistivity of Mo3−xRuxSb7. Inorg Chem 2009; 48:5216-23. [DOI: 10.1021/ic900171u] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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de Rudnicki S, Debien B, Leclerc T, Clapson P, Merens A, Perez JP, Lenoir B. Antivenins paraspécifiques et morsures de serpents exotiques : à propos de deux cas cliniques. ACTA ACUST UNITED AC 2008; 27:326-9. [DOI: 10.1016/j.annfar.2008.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2006] [Accepted: 03/18/2008] [Indexed: 11/27/2022]
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Clapson P, Perez JP, Debien B, Pasquier P, Lenoir B, Pats B. [Use of rFVIIa (Novoseven) in the case of a patient with mitral valvular prothesis and anticoagulant accident]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2007; 26:1063-6. [PMID: 17977689 DOI: 10.1016/j.annfar.2007.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Accepted: 09/20/2007] [Indexed: 11/19/2022]
Abstract
We report the case of an haemorrhagic shock observed in a woman who received heparin for a cardiac valve in mitral position, efficiently treated with rFVIIa. The haemorrhagic complications under anticoagulation treatment remain rare, but can lead to real therapeutic dilemma. The use of rFVIIa has been evaluated in different clinical situations, including traumatic or post-operative haemorrhagic shock. The use of rFVIIa in the treatment of haemorrhagic complication under anticoagulation treatment is discussed.
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Lenoir B. [About high-doses of mannitol]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2007; 26:883; author reply 884. [PMID: 17851025 DOI: 10.1016/j.annfar.2007.07.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
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Ausset S, Auroy Y, Lambert E, Vest P, Plotton C, Rigal S, Lenoir B, Benhamou D. Cardiac troponin I release after hip surgery correlates with poor long-term cardiac outcome. Eur J Anaesthesiol 2007; 25:158-64. [PMID: 17666156 DOI: 10.1017/s0265021507001202] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVE The aim of this study was to assess the incidence of perioperative myocardial damage detected by serial measurements of troponin I after hip surgery and its association with late cardiovascular outcome. METHODS Troponin I was measured during the first three postoperative days in 88 consecutive patients undergoing hip surgery. Values above the 99th percentile (0.08 ng mL(-1)) were considered positive. Major cardiac events (cardiac death, myocardial infarction and cardiac failure) were recorded during hospital stay and 1 yr after surgery. RESULTS Eleven patients (12.5%) exhibited elevated troponin I levels during hospital stay. Nine of them remained asymptomatic. During follow-up, 45% of them (5/11) suffered from a major cardiac event vs. 4% (3/76) for patients with normal postoperative troponin I levels (P = 0.0006). All-cause mortality rate was 36% (4/11) at 1 yr vs. 7% (5/71, P = 0.0131). Using multivariate Cox regression analysis adjusted for baseline data, independent factors associated with the occurrence of a cardiac event were troponin I elevation (OR=17.4-CI 95% 3.7-82) and age (OR=1.1 yr(-1)-CI 95% 1.01-1.21). Independent factors for all-cause mortality were troponin I elevation (OR=41.4-CI 95% 5.4-320.4), and age (OR=1.3 yr(-1)-CI 95% 1.1-1.4). CONCLUSION Troponin I release is common after hip surgery and is associated with a 10-fold increased incidence of long-term major cardiac events as compared to patients with normal troponin I levels (45% vs. 4%).
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Candolfi C, Lenoir B, Dauscher A, Bellouard C, Hejtmánek J, Santavá E, Tobola J. Spin fluctuations and superconductivity in Mo3Sb7. PHYSICAL REVIEW LETTERS 2007; 99:037006. [PMID: 17678319 DOI: 10.1103/physrevlett.99.037006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Indexed: 05/16/2023]
Abstract
Temperature dependences of the magnetic susceptibility, specific heat, and electrical resistivity have been measured for the Mo(3)Sb(7) compound in the 0.6-350 K range. This compound exhibits bulk superconductivity occurring at 2.25 K and follows the Kadowaki-Woods relation, A/gamma(2)=1.0 x 10(-5) microOmega x cm(K x mol/mJ)(2), as a heavy-fermion system does. We show, from experimental evidence and theoretical argument, that Mo(3)Sb(7) can be classified as a coexistent superconductor-spin fluctuation system. The McMillan equation including paramagnon effects was found to give an accurate estimation of the transition temperature.
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Debien B, Clapson P, Lambert E, Lenoir B, Perez JP, Pats B. Les complications cardiovasculaires aiguës de la cocaïne. À propos de deux observations. ACTA ACUST UNITED AC 2006; 25:397-400. [PMID: 16426803 DOI: 10.1016/j.annfar.2005.11.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Accepted: 11/17/2005] [Indexed: 11/16/2022]
Abstract
Concerning any socioprofessional category, some addictive drugs like cocaine are responsible for many complications. The authors relate two case reports of young patients who suffered from cardiovascular accidents due to this drug. The first one was diagnosed with an ischemic stroke caused by carotid artery dissection and a leg distal vascular obliteration, the second one with a myocardial infarction with transient left ventricular dysfunction. Through these two case reports, the authors take stock of the pathophysiological and therapeutic knowledge of cardiovascular accidents after cocaine intake.
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