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Piché F, Daneau C, Plourde C, Girard S, Romain AJ. Characteristics and impact of physical activity interventions during substance use disorder treatment excluding tobacco: A systematic review. PLoS One 2023; 18:e0283861. [PMID: 37099488 PMCID: PMC10132651 DOI: 10.1371/journal.pone.0283861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 03/19/2023] [Indexed: 04/27/2023] Open
Abstract
Substance use disorder is a worldwide issue that entails negative health and physical activity is a promising complementary therapy for alleviating the consequences. The objective of this reviews is to characterize physical activity interventions offered in the literature and explore their effects during treatment for people with substance use disorders with excluding studies focusing only on tobacco use. A systematic search of seven databases on articles including a physical activity intervention during a treatment for substance use disorder was done and an examination of the presence of bias was performed. A total of 43 articles including 3135 participants were identified. Most studies were randomized controlled trial (81%), followed by pre-post design (14%) and cohort studies (5%). The most common physical activity intervention identified was of moderate intensity, 3 times per week (≈ 1 hour) for 13 weeks. Cessation/reduction of substance use was the most studied outcome (21 studies, 49%), and 75% showed a decrease in substance use following physical activity intervention. Aerobic capacity was the second most studied effect (14 studies, 33%), with more than 71% of studies showing improvement. Twelve studies (28%) reported a decrease of depressive symptoms. Physical activity interventions in a treatment for substance use disorder seem to be a promising, but more methodologically rigorous scientific studies are needed.
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Affiliation(s)
- Florence Piché
- Department of Human Kinetics, University of Quebec in Trois-Rivières, Trois-Rivières, Québec, Canada
- Faculty of Medicine, University of Montreal, Montreal, Québec, Canada
- Centre de recherche de l'Institut universitaire en santé mentale de Montréal, Québec, Canada
| | - Catherine Daneau
- Department of Human Kinetics, University of Quebec in Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Chantal Plourde
- Department of Psychoeducation, University of Quebec in Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Stéphanie Girard
- Department of Human Kinetics, University of Quebec in Trois-Rivières, Trois-Rivières, Québec, Canada
| | - Ahmed Jérôme Romain
- Faculty of Medicine, University of Montreal, Montreal, Québec, Canada
- Centre de recherche de l'Institut universitaire en santé mentale de Montréal, Québec, Canada
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Atsou KM, Rachet B, Cornet E, Chretien M, Rossi C, Remontet L, Roche L, Giorgi R, Gauthier S, Girard S, Böckle J, Wasse SK, Rachou H, Bouzid L, Poncet J, Orazio S, Monnereau A, Troussard X, Mounier M, Maynadie M. Factors influencing access to specialised haematology units during acute myeloblastic leukaemia patient care: A population-based study in France. Cancer Med 2023; 12:8911-8923. [PMID: 36710405 PMCID: PMC10134294 DOI: 10.1002/cam4.5645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/23/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND The excess mortality observed in Acute Myeloblastic Leukaemia (AML) patients, partly attributed to unequal access to curative treatments, could be linked to care pathways. METHODS We included 1039 AML incident cases diagnosed between 2012-2016 from the 3 French blood cancer registries (3,625,400 inhabitants). We describe patients according to age, the medical entry unit and access to the specialised haematology unit (SHU) during follow-up. Multivariate logistic regression model was done to determine the association between covariables and access to SHU. A total of 713 patients (69%) had access to SHU during care. RESULTS The most common care pathway concerned referral from the general practitioner to SHU, n = 459(44%). The univariate analysis observed a downward trend for the most deprived patients. Patients who consulted in SHU were younger (66 years vs. 83, p < 0.001), and 92% had access to cytogenetic analysis (vs. 54%, p < 0.001). They also had less poor prognosis AML-subtypes (AML-MRC, t-AML/MDS and AML-NOS) (38% vs. 69%); 77% with de novo AML (vs. 67%, p < 0.003)], more favourable cytogenetic prognostic status (23% vs. 6%, p < 0.001), less comorbidities (no comorbidity = 55% vs. 34%, p < 0.001) and treatments proposed were curative 68% (vs. 5.3%, p < 0.001). Factors limiting access to SHU were age over 80 years (OR, 0.14; 95% CI, 0.04-0.38), severe comorbidities (OR, 0.39; 95% CI, 0.21-0.69), emergency unit referral (OR, 0.28; 95% CI, 0.18-0.44) and non-SHU referral (OR, 0.12; 95% CI, 0.07-0.18). Consultation in an academic hospital increased access to SHU by 8.87 times (95% CI, 5.64-14.2). CONCLUSION The high proportion of access to cytogenetic testing and curative treatment among patients admitted to SHU, and the importance of early treatment in AML underlines the importance of access to SHU for both diagnosis and treatment.
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Affiliation(s)
- Kueshivi Midodji Atsou
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Bernard Rachet
- Inequalities in Cancer Outcomes Network, Department of Non‐communicable Disease Epidemiology, Faculty of Epidemiology and Population HealthLondon School of Hygiene & Tropical MedicineLondonUK
| | - Edouard Cornet
- Registre régional des hémopathies malignes de Basse‐NormandieCHU Caen‐NormandieCaenFrance
| | - Marie‐Lorraine Chretien
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
- CHU Dijon BourgogneService d'Hématologie CliniqueDijonFrance
| | - Cédric Rossi
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
- CHU Dijon BourgogneService d'Hématologie CliniqueDijonFrance
| | - Laurent Remontet
- Pôle Santé Publique, Service de Biostatistique ‐ Bio‐informatiqueHospices Civils de LyonLyonFrance
- UMR 5558, Laboratoire de Biométrie et Biologie Évolutive, Équipe Biostatistique‐SantéUniversité de Lyon, Université Lyon 1, CNRSVilleurbanneFrance
| | - Laurent Roche
- Pôle Santé Publique, Service de Biostatistique ‐ Bio‐informatiqueHospices Civils de LyonLyonFrance
- UMR 5558, Laboratoire de Biométrie et Biologie Évolutive, Équipe Biostatistique‐SantéUniversité de Lyon, Université Lyon 1, CNRSVilleurbanneFrance
| | - Roch Giorgi
- SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, ISSPAM, Hop Timone, BioSTIC, Biostatistique et Technologies de l'Information et de la, CommunicationAix Marseille Univ, APHM, INSERM, IRDMarseilleFrance
| | - Sophie Gauthier
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Stéphanie Girard
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Johann Böckle
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Stéphane Kroudia Wasse
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Helene Rachou
- Registre des Hémopathies Malignes de GirondeInstitut BergoniéBordeauxFrance
- EPICENE Team, Inserm U1219, Bordeaux Population HealthUniversity of BordeauxBordeauxFrance
| | - Laila Bouzid
- Registre des Hémopathies Malignes de GirondeInstitut BergoniéBordeauxFrance
- EPICENE Team, Inserm U1219, Bordeaux Population HealthUniversity of BordeauxBordeauxFrance
| | - Jean‐Marc Poncet
- Registre régional des hémopathies malignes de Basse‐NormandieCHU Caen‐NormandieCaenFrance
| | - Sébastien Orazio
- Registre des Hémopathies Malignes de GirondeInstitut BergoniéBordeauxFrance
- EPICENE Team, Inserm U1219, Bordeaux Population HealthUniversity of BordeauxBordeauxFrance
| | - Alain Monnereau
- Registre des Hémopathies Malignes de GirondeInstitut BergoniéBordeauxFrance
- EPICENE Team, Inserm U1219, Bordeaux Population HealthUniversity of BordeauxBordeauxFrance
| | - Xavier Troussard
- Registre régional des hémopathies malignes de Basse‐NormandieCHU Caen‐NormandieCaenFrance
| | - Morgane Mounier
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
| | - Marc Maynadie
- Registre des Hémopathies Malignes de la Côte‐d'OrCHU de Dijon BourgogneDijonFrance
- UMR INSERM 1231Université Bourgogne Franche‐ComtéDijonFrance
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Girard S, Lamaison V, Torre A, Decool P, Dao CNT, Cerignat S, Villecroze F, Mouyon D, Jiolat G, Schild T, Ilyin Y, Wessel W, Krooshoop H, Leferink J, Vermeer C, Lubkemann R, Nijhuis A. SELFIE: ITER superconducting joint test facility. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Hoehr C, Belanger-Champagne C, Morana A, Trinczek M, Girard S. SILICA-BASED OPTICAL FIBRE WITH 10 MICROMETER CORE DIAMETER FOR PROTON FLASH MONITORING. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01663-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Garcia-Ruiz A, Morana A, Costa L, Martins HF, Martin-Lopez S, Gonzalez-Herraez M, Boukenter A, Ouerdane Y, Girard S. Distributed detection of hydrogen and deuterium diffusion into a single-mode optical fiber with chirped-pulse phase-sensitive optical time-domain reflectometry. Opt Lett 2019; 44:5286-5289. [PMID: 31674989 DOI: 10.1364/ol.44.005286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
For some infrastructures such as oil and gas extraction boreholes or radioactive waste repositories, where distributed optical fiber sensors are employed to grant the safety of the facilities, the presence of gas species such as hydrogen or deuterium is one of the most relevant parameters to monitor. The possibility of employing the same kind of sensors for this purpose is of special interest, reducing the cost by employing a single interrogator, able to measure multiple parameters by simply employing adequate sensing fibers. To meet this goal, we present here a chemical sensor based on chirped-pulse phase-sensitive optical time-domain reflectometry (CP-φOTDR), which is able to detect these species while they diffuse into the silica fiber. The ability of chirped-pulse φOTDR to measure a change in refractive index with sensitivity around 10-8 has allowed determining hydrogen concentration with accuracy on the order of 10-3 mol/m3 and spatial resolution ∼6 m. Another experiment provides an indirect measurement of the solubility of deuterium in a standard telecom-grade optical fiber, which is found to be around 1.47×1024 m3/bar.
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Muller C, Allanche T, Paillet P, Duhamel O, Goiffon V, Rizzolo S, Lépine T, Rousson J, Baudu JP, Macé JR, Desjonqueres H, Monsanglant Louvet C, Ouerdane Y, Boukenter A, Girard S. Investigations of the MGy dose level radiation effects on the photometric budget of a radiation-hardened CMOS-based camera. Appl Opt 2019; 58:6165-6172. [PMID: 31503942 DOI: 10.1364/ao.58.006165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
We studied the impact of ionizing radiation at high dose levels (megagray, MGy) on the photometric budget of a radiation-resistant complementary metal oxide semi-conductor (CMOS)-based camera. This is achieved by measuring the radiation-induced degradation of each subpart, namely its illumination system, its optical system, and its CMOS image sensor. The acquired experimental results allow performing a rather realistic simulation of the radiation effects at the system level. Thanks to appropriate mitigation techniques, limited image darkening and color change are obtained at MGy dose levels. The presented results confirm the feasibility of a CMOS-based camera able to resist to MGy dose level of ionizing radiations with an acceptable degradation of the image quality, opening the way to its implementation in the most challenging harsh environments.
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Piccolo A, Delepine-Lesoille S, Landolt M, Girard S, Ouerdane Y, Sabatier C. Coupled temperature and γ-radiation effect on silica-based optical fiber strain sensors based on Rayleigh and Brillouin scatterings. Opt Express 2019; 27:21608-21621. [PMID: 31510234 DOI: 10.1364/oe.27.021608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/12/2019] [Indexed: 06/10/2023]
Abstract
Coupled temperature and γ-ray influence on Brillouin (PPP-BOTDA) and Rayleigh (TW-COTDR) scatterings are quantified. Aging tests of these distributed strain measuring systems are performed on-line, up to 1 MGy, at room temperature, 80 ∘C, 100 ∘C and 120 ∘C. Brillouin and Rayleigh frequency shifts remain identical regardless of the temperature: 3 MHz (2 MHz) and 7 GHz (3 GHz) for Ge-doped (respectively F-doped) fiber at 1 MGy. Meanwhile, radiation-induced attenuation is diminished because of the higher temperature; hence, the maximal distance range is less deteriorated. These tests help to explain the origin of the Brillouin frequency shift under γ-rays, with an acoustic velocity variation of about 1 m/s in 1 MGy irradiated samples.
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Giacomazzi L, Martin-Samos L, Alessi A, Richard N, Boukenter A, Ouerdane Y, Girard S, Valant M, De Gironcoli S. v-P 2O 5 micro-clustering in P-doped silica studied by a first-principles Raman investigation. Sci Rep 2019; 9:7126. [PMID: 31073141 PMCID: PMC6509213 DOI: 10.1038/s41598-019-42887-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/29/2019] [Indexed: 11/24/2022] Open
Abstract
Synthetic vitreous silica is currently the preferred material for the production of optical fibres because of the several excellent properties of this glass, e.g. high transmission in the visible and IR domains, high mechanical strength, chemical durability, and ease of doping with various materials. For instance, fiber lasers and amplifiers exploit the light amplification properties provided by rare-earth ions employed as dopants in the core of silica-based optical fibers. The structure and composition of the nearest neighbor shell surrounding rare-earth ions in silica-based optical fibers and amplifiers have been intensively debated in the last decade. To reduce aggregation effects between rare-earth ions, co-dopants such as phosphorus and aluminium are added as structural modifiers; phosphorus-doping, in particular, has proved to be very efficient in dissolving rare-earth ions. In this work, we provide further insights concerning the embedding of P atoms into the silica network, which may be relevant for explaining the ease of formation of a phosphorus pentoxide nearest-neighbor shell around a rare-earth dopant. In particular, by means of first-principles calculations, we discuss alternative models for an irradiation (UV, x-, γ-rays) induced paramagnetic center, i.e. the so called room-temperature phosphorus-oxygen-hole center, and its precursors. We report that the most likely precursor of a room-temperature phosphorus-oxygen-hole center comprises of a micro-cluster of a few (at least two) neighboring phosphate tetrahedra, and correspondingly that the occurrence of isolated [(O-)2P(=O)2]- units is unlikely even at low P-doping concentrations. In fact, this work predicts that the symmetric stretching of P=O bonds in isolated [(O-)2P(=O)2]- units appears as a Raman band at a frequency of ~1110 cm-1, and only by including at least another corner-sharing phosphate tetrahedron, it is shown to shift to higher frequencies (up to ~40 cm-1) due to the shortening of P=O bonds, thereby leading to an improved agreement with the observed Raman band located at ~1145 cm-1.
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Affiliation(s)
- Luigi Giacomazzi
- Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, 5270, Ajdovščina, Slovenia.
- CNR-IOM/Democritos National Simulation Center, Istituto Officina dei Materiali, c/o SISSA, via Bonomea 265, IT-34136, Trieste, Italy.
| | - L Martin-Samos
- CNR-IOM/Democritos National Simulation Center, Istituto Officina dei Materiali, c/o SISSA, via Bonomea 265, IT-34136, Trieste, Italy
| | - A Alessi
- Univ Lyon, UJM-Saint-Etienne, CNRS, IOGS, Laboratoire Hubert Curien UMR 5516, F-42023, St-Etienne, France
| | - N Richard
- CEA, DAM, DIF, F-91297, Arpajon, France
| | - A Boukenter
- Univ Lyon, UJM-Saint-Etienne, CNRS, IOGS, Laboratoire Hubert Curien UMR 5516, F-42023, St-Etienne, France
| | - Y Ouerdane
- Univ Lyon, UJM-Saint-Etienne, CNRS, IOGS, Laboratoire Hubert Curien UMR 5516, F-42023, St-Etienne, France
| | - S Girard
- Univ Lyon, UJM-Saint-Etienne, CNRS, IOGS, Laboratoire Hubert Curien UMR 5516, F-42023, St-Etienne, France
| | - M Valant
- Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, 5270, Ajdovščina, Slovenia
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Gauthier S, Mounier M, Girard S, Briandet C, Carli PM, Maynadie M. Abstract 1205: Long-term survival of children with acute lymphoblastic leukemia, according to treatment regimen, in a regional French population. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-1205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Acute Lymphoblastic Leukemia (ALL) is the main neoplastic disease in children. Treatment is based on chemotherapy associated or not to bone marrow transplantation. The 5-year survival rate in European children is reported as 86% but long term survival data are not available. We investigated the 20 year Overall Survival (OS) and Net survival (NS) of the patients diagnosed in the population of the Côte d'Or area in France. 162 cases were diagnosed in the population of the Côte d'Or area between 1970 and 2015. Cases diagnosed between 1970 and 1979 (n=29) were not formally registered in the registry database but data were available through the unique regional, reference hematology laboratory. All cases were followed until 01 01 2017. The treatment regimens that were used were as follows in chronological order (from the earliest to the most recent); LAL 76 and 80; the FRALLE 83, 87 and 89 until 1993; the FRALLE 93 from 1993 to 2001 and then the FRALLE 2000. The 20-y OS and NS of ALL was respectively 66% and 67%. It was 59% in boys but 75% in girls (p=0.04). No statistical difference was found according to age. According to lineage subtype, the 20-y NS was 82% in B-ALL, 65% in T-ALL and 34% in ALL, not otherwise specified (p<0.001). According to treatment regimen, the 20-y-NS was 51% before the use of the FRALLE 93, compared to 71% for cases treated by the FRALLE 93 regimen and 95% for those treated with the FRALLE 2000 regimen (p<0.001). The survival was 95% irrespective of the time of diagnosis following introduction of the FRALLE 2000 regimen. Data on long term survival of ALL in children are scarce. Our results show 1) a very high 20 year survival rate indicating the efficacy and safety of the treatment regimens used, 2) the utility of randomized clinical trials to define new standards of care.
Citation Format: Sophie Gauthier, Morgane Mounier, Stéphanie Girard, Claire Briandet, Paule Marie Carli, Marc Maynadie. Long-term survival of children with acute lymphoblastic leukemia, according to treatment regimen, in a regional French population [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 1205.
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Affiliation(s)
- Sophie Gauthier
- 1INSERM U1231 - Registre des Hémopathies Malignes de Côte d'Or, Dijon, France
| | - Morgane Mounier
- 1INSERM U1231 - Registre des Hémopathies Malignes de Côte d'Or, Dijon, France
| | - Stéphanie Girard
- 1INSERM U1231 - Registre des Hémopathies Malignes de Côte d'Or, Dijon, France
| | | | - Paule Marie Carli
- 1INSERM U1231 - Registre des Hémopathies Malignes de Côte d'Or, Dijon, France
| | - Marc Maynadie
- 1INSERM U1231 - Registre des Hémopathies Malignes de Côte d'Or, Dijon, France
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Gentilcore F, Chartier M, Rousseau M, Girard S, Wei S, benedetti A, Nuyt A, Jantchou P. A123 PERINATAL FACTORS AND RISK OF INFLAMMATORY BOWEL DISEASE IN THE OFFSPRING: A SYSTEMATIC REVIEW AND META-ANALYSIS. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- F Gentilcore
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
| | - M Chartier
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
| | - M Rousseau
- INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - S Girard
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
| | - S Wei
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
| | - A benedetti
- Departments of Medecine and Epidemiology, Biostatistics & occupational Health, McGill University, Montreal, QC, Canada
| | - A Nuyt
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
| | - P Jantchou
- Gastroenterologie, Hépatologie et Nutrition, CHU Ste-Justine, Montreal, QC, Canada
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Labib R, Bury D, Boisleve F, Eichenbaum G, Girard S, Naciff J, Leal M, Wong J. A kinetic-based safety assessment of consumer exposure to salicylic acid from cosmetic products demonstrates no evidence of a health risk from developmental toxicity. Regul Toxicol Pharmacol 2018; 94:245-251. [PMID: 29410076 DOI: 10.1016/j.yrtph.2018.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/23/2017] [Accepted: 01/27/2018] [Indexed: 11/19/2022]
Abstract
Salicylic acid (SA) has a long history of safe use as ingredient in topical cosmetic products. In 2016, the Committee for Risk Assessment of the European Chemicals Agency proposed to classify SA as a Category 2 reproductive toxicant based on adverse developmental effects in animal toxicity studies. This hazard-based classification (based on mg/kg doses) requires a reassessment of the safety of the current SA concentrations in cosmetic consumer products. Herein, a safety reassessment was performed in which margins of safety were calculated based on literature data on the NOAEL plasma exposure levels from animal reproductive toxicity studies with ASA (rapidly converts to SA in plasma), human SA plasma levels from oral exposure to ASA and human dermal exposure to SA-containing cosmetic products. In addition, a literature review was performed, which shows that there are no adverse developmental effects despite extensive human clinical oral use of ASA up to the maximum recommended therapeutic doses. The plasma exposure-based safety assessment for SA combined with an absence of any clinical health risk with oral ASA use in the literature supports that there is an acceptable margin of safety for the consumer exposure to SA as authorized in the current EU cosmetic regulation.
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Affiliation(s)
- R Labib
- Johnson & Johnson Consumer Inc., Skillman, NJ, USA.
| | - D Bury
- L'Oreal Research and Development, Worldwide Safety Evaluation, 9 Rue Pierre Dreyfus, 92110 Clichy, France
| | - F Boisleve
- Johnson & Johnson Consumer Inc., Campus de Maigremont Chaussée du Vexin, 27100, Val De Reuil, France
| | - G Eichenbaum
- Johnson & Johnson, Office of the Chief Medical Officer, New Brunswick, NJ, USA
| | - S Girard
- Novacyl, 21 Chemin de la Sauvegarde, 69130, Écully, France
| | - J Naciff
- The Procter and Gamble Company, Mason Business Center, Mason, OH, 45040, USA
| | - M Leal
- KAO USA Inc., Cincinnati, OH, 45214, USA
| | - J Wong
- The Estée Lauder Companies, Inc., Melville, NY, 11747-3258, USA
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Cheymol G, Remy L, Gusarov A, Kinet D, Mégret P, Laffont G, Blanchet T, Morana A, Marin E, Girard S. Test of Fibre Bragg Gratings samples under High Fast Neutrons Fluence. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817004004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Optical fibre sensors (OFS) are worthy of interest for measurements in nuclear reactor thanks to their unique features, particularly compact size and remote multi-point sensing for some of them. But besides non negligible constraints associated with the high temperature environment of the experiments of interest, it is well known that the performances of OFS can be severely affected by high level of radiations. The Radiation Induced Attenuation (RIA) in the fibre is probably most known effect, which can be to some extent circumvented by using rad hard fibres to limit the dynamic loss. However, when the fast neutron fluence reaches 1018 to 1019 n/cm2, the density and index variations associated to structural changes may deteriorate drastically the performances of OFS even if they are based on rad hard fibres, by causing direct errors in the measurements of temperature and/or strain changes. The aim of the present study is to access the effect of nuclear radiations on the Fabry Perot (FP) and of Fibre Bragg Grating (FBG) sensors through the comparison of measurements made on these OFS - or part of them - before and after irradiation [1].
In the context of development of OFS for high irradiation environment and especially for Material Testing Reactors (MTRs), Sake 2 experiment consists in an irradiation campaign at high level of gamma and neutron fluxes conducted on samples of fibre optics – bare or functionalised with FBG. The irradiation was performed at two levels of fast neutron fluence: 1 and 3.1019 n/cm2 (E>1MeV), at 250°± 25°C, in the SCK•CEN BR2 reactor (Mol Belgium). An irradiation capsule was designed to allow irradiation at the specified temperature without active control. The neutron fluence was measured with activation dosimeters and the results were compared with MCPN computations. Investigation of bare samples gives information on the density changes, while for the FBGs both density and refractive index perturbation are involved. Some results for bare fibres were reported recently. In this paper, we will focus on the measurements made on FBGs that have been manufactured by different laboratories on SMF 28 fibers: CEA, University of St-Etienne and University of Mons. Tested gratings have been written using various conditions (type of fibre, of laser, writing wavelength, power density, post writing thermal annealing,…), leading to various behaviours after Sake 2 irradiation. Bragg wavelength and reflectivity have been measured before and after irradiation thanks to a special mounting at the same temperature. It appears that a change in the shape after irradiation of the Bragg peak disturb the retrieval of the Bragg wavelength.
The measurements show that for nearly all gratings the Bragg peak remains visible after the irradiation, and that Radiation Induced Bragg Wavelength Shifts (RI-BWSs) vary from few pm (equivalent to an error of less than 1°C for a temperature sensor) to nearly 1 nm (equivalent to 100°C) depending of the FBG types. High RI-BWSs could indeed be expected when considering the huge refractive index variation and compaction of the bare fibre samples that have been measured by other techniques. Post writing thermal annealing is confirmed as a key parameter in order to obtain a more radiation tolerant FBG. Our results show that specific annealing regimes allow making FGBs suitable to perform temperature measurements in a MTR experiment.
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Piette C, Suciu S, Clappier E, Bertrand Y, Drunat S, Girard S, Yakouben K, Plat G, Dastugue N, Mazingue F, Grardel N, van Roy N, Uyttebroeck A, Costa V, Minckes O, Sirvent N, Simon P, Lutz P, Ferster A, Pluchart C, Poirée M, Freycon C, Dresse MF, Millot F, Chantrain C, van der Werff Ten Bosch J, Norga K, Gilotay C, Rohrlich PS, Benoit Y, Cavé H. Differential impact of drugs on the outcome of ETV6-RUNX1 positive childhood B-cell precursor acute lymphoblastic leukaemia: results of the EORTC CLG 58881 and 58951 trials. Leukemia 2018; 32:244-248. [PMID: 29064485 DOI: 10.1038/leu.2017.289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C Piette
- University Department of Pediatrics, Pediatric Onco-Hematology, CHR Citadelle, Liège, Belgium
| | - S Suciu
- EORTC Headquarters, Brussels, Belgium
| | - E Clappier
- Département de Génétique, Hôpital Robert Debré, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
- Institut Universitaire d'Hématologie, Université Paris Diderot, Paris-Sorbonne-Cité, Paris, France
| | - Y Bertrand
- Department of Pediatric Hematology, IHOP, Hospices Civils de Lyon and Claude Bernard Lyon University, Lyon, France
| | - S Drunat
- Département de Génétique, Hôpital Robert Debré, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - S Girard
- Laboratory of Hematology, East Lyon University Hospital, Hospices Civils de Lyon, Lyon, France
| | - K Yakouben
- Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Robert Debré, Service d'Immuno-Hématologie pédiatrique, Paris, France
| | - G Plat
- Department of Pediatric Onco-Hematology, Purpan University Hospital, Toulouse, France
| | - N Dastugue
- Department of Pediatric Onco-Hematology, Purpan University Hospital, Toulouse, France
| | - F Mazingue
- Department of Pediatric Hematology-Oncology, Lille University Hospital, Lille, France
| | - N Grardel
- Department of Pediatric Hematology-Oncology, Lille University Hospital, Lille, France
| | - N van Roy
- Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - A Uyttebroeck
- Department of Pediatrics, University Hospital Gasthuisberg, Leuven, Belgium
| | - V Costa
- Department of Pediatrics, Portuguese Oncology Institute, Porto, Portugal
| | - O Minckes
- Department of Pediatric Onco-Hematology, Caen University Hospital, Caen, France
| | - N Sirvent
- Department of Pediatric Onco-Hematology, Montpellier University Hospital, Montpellier, France
| | - P Simon
- Department of Pediatric Onco-Hematology, Besançon University Hospital, Besançon, France
| | - P Lutz
- Department of Hematology, Hautepierre University Hospital, Strasbourg, France
| | - A Ferster
- Department of Pediatric Onco-Hematology, Hôpital Universitaire des Enfants Reine Fabiola (ULB), Brussels, Belgium
| | - C Pluchart
- Department of Pediatric Onco-Hematology, Reims University Hospital, Reims, France
| | - M Poirée
- Department of Pediatric Onco-Hematology, Nice University Hospital, Nice, France
| | - C Freycon
- Department of Pediatric Onco-Hematology, Grenoble University Hospital, Grenoble, France
| | - M-F Dresse
- University Department of Pediatrics, Pediatric Onco-Hematology, CHR Citadelle, Liège, Belgium
| | - F Millot
- Department of Pediatric Onco-Hematology, Poitiers University Hospital, Poitiers, France
| | - C Chantrain
- Department of Pediatrics, Clinique de l'Espérance, CHC, Liège, Belgium
| | | | - K Norga
- Pediatric Onco-Hematology Unit, Antwerp University Hospital, Antwerp, Belgium
| | - C Gilotay
- EORTC Headquarters, Brussels, Belgium
| | - P-S Rohrlich
- Department of Pediatric Onco-Hematology, Nice University Hospital, Nice, France
| | - Y Benoit
- Department of Pediatric Hematology-Oncology, Ghent University Hospital, Ghent, Belgium
| | - H Cavé
- Département de Génétique, Hôpital Robert Debré, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
- Institut Universitaire d'Hématologie, Université Paris Diderot, Paris-Sorbonne-Cité, Paris, France
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Rizzolo S, Périsse J, Boukenter A, Ouerdane Y, Marin E, Macé JR, Cannas M, Girard S. Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors. Sci Rep 2017; 7:8766. [PMID: 28821768 PMCID: PMC5562826 DOI: 10.1038/s41598-017-08853-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 07/18/2017] [Indexed: 12/01/2022] Open
Abstract
We present an innovative architecture of a Rayleigh-based optical fibre sensor for the monitoring of water level and temperature inside storage nuclear fuel pools. This sensor, able to withstand the harsh constraints encountered under accidental conditions such as those pointed-out during the Fukushima-Daiichi event (temperature up to 100 °C and radiation dose level up to ~20 kGy), exploits the Optical Frequency Domain Reflectometry technique to remotely monitor a radiation resistant silica-based optical fibre i.e. its sensing probe. We validate the efficiency and the robustness of water level measurements, which are extrapolated from the temperature profile along the fibre length, in a dedicated test bench allowing the simulation of the environmental operating and accidental conditions. The conceived prototype ensures an easy, practical and no invasive integration into existing nuclear facilities. The obtained results represent a significant breakthrough and comfort the ability of the developed system to overcome both operating and accidental constraints providing the distributed profiles of the water level (0–to–5 m) and temperature (20–to–100 °C) with a resolution that in accidental condition is better than 3 cm and of ~0.5 °C respectively. These new sensors will be able, as safeguards, to contribute and reinforce the safety in existing and future nuclear power plants.
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Affiliation(s)
- S Rizzolo
- Laboratoire Hubert Curien, UMR-CNRS 5516, 42000, Saint-Etienne, France.,Areva NP, 69006, Lyon, France.,Dipartimento di Fisica e Chimica, Università di Palermo, 90128, Palermo, Italy
| | | | - A Boukenter
- Laboratoire Hubert Curien, UMR-CNRS 5516, 42000, Saint-Etienne, France
| | - Y Ouerdane
- Laboratoire Hubert Curien, UMR-CNRS 5516, 42000, Saint-Etienne, France
| | - E Marin
- Laboratoire Hubert Curien, UMR-CNRS 5516, 42000, Saint-Etienne, France
| | | | - M Cannas
- Dipartimento di Fisica e Chimica, Università di Palermo, 90128, Palermo, Italy
| | - S Girard
- Laboratoire Hubert Curien, UMR-CNRS 5516, 42000, Saint-Etienne, France.
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Giacomazzi L, Martin-Samos L, Boukenter A, Ouerdane Y, Girard S, Alessi A, Gironcoli SD, Richard N. Photoactivated processes in optical fibers: generation and conversion mechanisms of twofold coordinated Si and Ge atoms. Nanotechnology 2017; 28:195202. [PMID: 28345535 DOI: 10.1088/1361-6528/aa693b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work we present an extensive investigation of nanoscale physical phenomena related to oxygen-deficient centers (ODCs) in silica and Ge-doped silica by means of first-principles calculations, including nudged-elastic band, electron paramagnetic resonance parameters calculations, and many-body perturbation theory (GW and Bethe-Salpeter equation) techniques. We show that by neutralizing positively charged oxygen monovacancies we can obtain model structures of twofold Si and Ge defects of which the calculated absorption spectra and singlet-to-triplet transitions are in excellent agreement with the experimental optical absorption and photo-luminescence data. In particular we provide an exhaustive analysis of the main exciton peaks related to the presence of twofold defects including long-range correlation effects. By calculating the reaction pathways and energy barriers necessary for the interconversion, we advance a double precursory origin of the [Formula: see text] and Ge(2) centers as due to the ionization of neutral oxygen monovacancies (Si-Si and Ge-Si dimers) and as due to the ionization of twofold Si and Ge defects. Furthermore two distinct structural conversion mechanisms are found to occur between the neutral oxygen monovacancy and the twofold Si (and Ge) atom configurations. Such conversion mechanisms allow to explain the radiation induced generation of the ODC(II) centers, their photobleaching, and also their generation during the drawing of optical fibers.
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Affiliation(s)
- Luigi Giacomazzi
- CNR-IOM/Democritos National Simulation Center, Istituto Officina dei Materiali, c/o SISSA, via Bonomea 265, I-34136 Trieste, Italy
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16
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Stehlík M, Aguirre P, Girard S, Jordanova P, Kiseľák J, Torres S, Sadovský Z, Rivera A. On ecosystems dynamics. Ecological Complexity 2017. [DOI: 10.1016/j.ecocom.2016.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Bossé D, Ng T, Ahmad C, Alfakeeh A, Alruzug I, Biagi J, Brierley J, Chaudhury P, Cleary S, Colwell B, Cripps C, Dawson LA, Dorreen M, Ferland E, Galiatsatos P, Girard S, Gray S, Halwani F, Kopek N, Mahmud A, Martel G, Robillard L, Samson B, Seal M, Siddiqui J, Sideris L, Snow S, Thirwell M, Vickers M, Goodwin R, Goel R, Hsu T, Tsvetkova E, Ward B, Asmis T. Eastern Canadian Gastrointestinal Cancer Consensus Conference 2016. ACTA ACUST UNITED AC 2016; 23:e605-e614. [PMID: 28050151 DOI: 10.3747/co.23.3394] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The annual Eastern Canadian Gastrointestinal Cancer Consensus Conference 2016 was held in Montreal, Quebec, 5-7 February. Experts in radiation oncology, medical oncology, surgical oncology, and infectious diseases involved in the management of patients with gastrointestinal malignancies participated in presentations and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses multiple topics: ■ Follow-up and survivorship of patients with resected colorectal cancer■ Indications for liver metastasectomy■ Treatment of oligometastases by stereotactic body radiation therapy■ Treatment of borderline resectable and unresectable pancreatic cancer■ Transarterial chemoembolization in hepatocellular carcinoma■ Infectious complications of antineoplastic agents.
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Affiliation(s)
- D Bossé
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - T Ng
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - C Ahmad
- Newfoundland and Labrador: Dr. H. Bliss Murphy Cancer Centre, St. John's (Ahmad, Seal, Siddiqui)
| | - A Alfakeeh
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - I Alruzug
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - J Biagi
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - J Brierley
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - P Chaudhury
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - S Cleary
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - B Colwell
- Nova Scotia: QEII Health Sciences Centre, Halifax (Colwell, Dorreen, Snow)
| | - C Cripps
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - L A Dawson
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - M Dorreen
- Nova Scotia: QEII Health Sciences Centre, Halifax (Colwell, Dorreen, Snow)
| | - E Ferland
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - P Galiatsatos
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - S Girard
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - S Gray
- New Brunswick: Saint John Regional Hospital, Saint John (Gray)
| | - F Halwani
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - N Kopek
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - A Mahmud
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - G Martel
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - L Robillard
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - B Samson
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - M Seal
- Newfoundland and Labrador: Dr. H. Bliss Murphy Cancer Centre, St. John's (Ahmad, Seal, Siddiqui)
| | - J Siddiqui
- Newfoundland and Labrador: Dr. H. Bliss Murphy Cancer Centre, St. John's (Ahmad, Seal, Siddiqui)
| | - L Sideris
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - S Snow
- Nova Scotia: QEII Health Sciences Centre, Halifax (Colwell, Dorreen, Snow)
| | - M Thirwell
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - M Vickers
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - R Goodwin
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - R Goel
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - T Hsu
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - E Tsvetkova
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
| | - B Ward
- Quebec: Hôpital Charles-LeMoyne Cancer Centre, Greenfield Park (Samson); McGill University Health Centre, Montreal (Alfakeeh, Alruzug, Chaudhury, Kopek, Thirlwell, Ward); Sir Mortimer B. Davis Jewish General Hospital (Galiatsatos); Centre Hospitalier Pierre-Boucher (Ferland); Centre Hospitalier Universitaire de Montréal (Girard, Sideris)
| | - T Asmis
- Ontario: The Ottawa Hospital Cancer Centre, Ottawa (Asmis, Bossé, Cripps, Goel, Goodwin, Halwani, Hsu, Martel, Ng, Robillard, Vickers); Queen's University and Cancer Centre of Southeastern Ontario, Kingston (Biagi); Princess Margaret Cancer Centre, Toronto (Brierley, Cleary, Dawson); Juravinski Cancer Centre, Hamilton (Tsvetkova); Cancer Centre of Southeastern Ontario, Kingston (Mahmud)
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Guillous S, Bourin C, Ban D'Etat B, Benyagoub A, Cassimi A, Feierstein C, Gardés E, Giglio E, Girard S, Grygiel C, Houel A, Lebius H, Méry A, Monnet I, Ramillon JM, Rangama J, Ropars F, Verzeroli E, Viteau M, Delobbe A. A new setup for localized implantation and live-characterization of keV energy multiply charged ions at the nanoscale. Rev Sci Instrum 2016; 87:113901. [PMID: 27910696 DOI: 10.1063/1.4966675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An innovative experimental setup, PELIICAEN, allowing the modification of materials and the study of the effects induced by multiply charged ion beams at the nanoscale is presented. This ultra-high vacuum (below 5 × 10-10 mbar) apparatus is equipped with a focused ion beam column using multiply charged ions and a scanning electron microscope developed by Orsay Physics, as well as a scanning probe microscope. The dual beam approach coupled to the scanning probe microscope achieves nanometer scale in situ topological analysis of the surface modifications induced by the ion beams. Preliminary results using the different on-line characterization techniques to study the formation of nano-hillocks on silicon and mica substrates are presented to illustrate the performances of the setup.
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Affiliation(s)
- S Guillous
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - C Bourin
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - B Ban D'Etat
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - A Benyagoub
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - A Cassimi
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - C Feierstein
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - E Gardés
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - E Giglio
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - S Girard
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - C Grygiel
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - A Houel
- Orsay Physics (Tescan-Orsay Holding), 95 Avenue des Monts Auréliens, ZA Saint-Charles F-13710, Fuveau, France
| | - H Lebius
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - A Méry
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - I Monnet
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - J-M Ramillon
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - J Rangama
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - F Ropars
- CIMAP (CEA, CNRS, ENSICAEN, UNICAEN, Normandie University), Boulevard Henri Becquerel, BP 5133, Caen 14070 Cedex 5, France
| | - E Verzeroli
- Orsay Physics (Tescan-Orsay Holding), 95 Avenue des Monts Auréliens, ZA Saint-Charles F-13710, Fuveau, France
| | - M Viteau
- Orsay Physics (Tescan-Orsay Holding), 95 Avenue des Monts Auréliens, ZA Saint-Charles F-13710, Fuveau, France
| | - A Delobbe
- Orsay Physics (Tescan-Orsay Holding), 95 Avenue des Monts Auréliens, ZA Saint-Charles F-13710, Fuveau, France
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Petit L, De Guillebon S, Girard S, Masson F, Cottenceau V, Sztark F. Étude préliminaire sur la dépense énergétique chez le patient de réanimation : comparaison de formules prédictives et de la calorimétrie indirecte à trois temps de la prise en charge. NUTR CLIN METAB 2016. [DOI: 10.1016/j.nupar.2016.09.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Lavallée VP, Lemieux S, Boucher G, Gendron P, Boivin I, Girard S, Hébert J, Sauvageau G. Identification of MYC mutations in acute myeloid leukemias with NUP98–NSD1 translocations. Leukemia 2016; 30:1621-4. [DOI: 10.1038/leu.2016.19] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Rizzolo S, Marin E, Cannas M, Boukenter A, Ouerdane Y, Périsse J, Macé JR, Bauer S, Marcandella C, Paillet P, Girard S. Radiation effects on optical frequency domain reflectometry fiber-based sensor. Opt Lett 2015; 40:4571-4574. [PMID: 26469566 DOI: 10.1364/ol.40.004571] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigate the radiation effects on germanosilicate optical fiber acting as the sensing element of optical frequency domain reflectometry devices. Thanks to a new setup permitting to control temperature during irradiation, we evaluate the changes induced by 10 keV x rays on their Rayleigh response up to 1 MGy in a temperature range from -40°C up to 75°C. Irradiation at fixed temperature points out that its measure is reliable during both irradiation and the recovery process. Mixed temperature and radiation measurements show that changing irradiation temperature leads to an error in distributed measurements that depends on the calibration procedure. These results demonstrate that Rayleigh-based optical fiber sensors are very promising for integration in harsh environments.
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22
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Cangialosi C, Girard S, Boukenter A, Marin E, Cannas M, Delepine-Lesoille S, Marcandella C, Paillet P, Ouerdane Y. Steady state γ-ray radiation effects on Brillouin fiber sensors. ACTA ACUST UNITED AC 2015. [DOI: 10.1117/12.2194990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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23
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Leconte B, Cadier B, Gilles H, Girard S, Robin T, Laroche M. Extended tunability of Nd-doped fiber lasers operating at 872-936 nm. Opt Lett 2015; 40:4098-4101. [PMID: 26368721 DOI: 10.1364/ol.40.004098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Efficient operation of an Nd-doped fiber laser operating in a wavelength-tunable configuration using a volume Bragg grating (VBG) is reported in this Letter. A high-power operation on the 4F3/2-4I9/2 transition of Nd3+ at short wavelengths below 900 nm is demonstrated for the first time in silica fibers. A high-efficiency (47% laser conversion) output power up to 22 W and a narrow linewidth of 0.035 nm are achieved. This configuration is compared with a more conventional fiber laser setup using a bandpass filter and a highly reflective dichroic mirror.
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24
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Rizzolo S, Boukenter A, Marin E, Cannas M, Perisse J, Bauer S, Mace JR, Ouerdane Y, Girard S. Vulnerability of OFDR-based distributed sensors to high γ-ray doses. Opt Express 2015; 23:18997-19009. [PMID: 26367563 DOI: 10.1364/oe.23.018997] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Vulnerability of Optical Frequency Domain Reflectometry (OFDR) based sensors to high γ-ray doses (up to 10 MGy) is evaluated with a specific issue of a radiation-hardened temperature and strain monitoring system for nuclear industry. For this, we characterize the main radiation effects that are expected to degrade the sensor performances in such applicative domain: the radiation-induced attenuation (RIA), the possible evolution with the dose of the Rayleigh scattering phenomenon as well as its dependence on temperature and strain. This preliminary investigation is done after the irradiation and for five different optical fiber types covering the range from radiation-hardened fibers to highly radiation sensitive ones. Our results show that at these high dose levels the scattering mechanism at the basis of the used technique for the monitoring is unaffected (changes below 5%), authorizing acceptable precision on the temperature or strain measurements. RIA has to be considered as it limits the sensing range. From our vulnerability study, the OFDR sensors appear as promising candidates for nuclear industry even at doses as high as 10 MGy.
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Emin L, Izard A, Schiavone S, Kermanach P, Deramecourt M, Duclusaud A, Gertych W, Girard S. [Fetomaternal transfusion and diagnosis of gestational choriocarcinoma]. ACTA ACUST UNITED AC 2015; 43:250-2. [PMID: 25727162 DOI: 10.1016/j.gyobfe.2015.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 11/18/2014] [Indexed: 11/26/2022]
Abstract
Choriocarcinoma is a rare but agressive malignant trophoblastic neoplasm. Fetomaternal transfusion can be the first sign of choriocarcinoma. We describe two cases of gestational choriocarinoma whose first manifestation was a fetomaternal transfusion. Fetomaternal transfusion is a rare demonstration of choriocarcinoma but its diagnosis must lead to a placenta examination with specific research of choriocarcinoma. The more the therapeutic care is precise, the better is the forecast.
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Affiliation(s)
- L Emin
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France.
| | - A Izard
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - S Schiavone
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - P Kermanach
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - M Deramecourt
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - A Duclusaud
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - W Gertych
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
| | - S Girard
- Département de gynécologie-obstétrique, centre hospitalier Alpes Léman, 558, routes de Findrol, BP 20500, 74130 Contamine-sur-Arve, France
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Dandoit M, Mounier M, Guy J, Petrella T, Girard S, Casasnovas RO, Martin L, Bonnetain F, Maynadié M. The heterogeneity of changes in incidence and survival among lymphoid malignancies in a 30-year French population-based registry. Leuk Lymphoma 2014; 56:1050-7. [DOI: 10.3109/10428194.2014.956315] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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27
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Sedky M, Mekki Y, Mialou V, Bleyzac N, Girard S, Salama E, Abdel Rahman H, Bertrand Y. Cytomegalovirus infection in pediatric allogenic hematopoietic stem cell transplantation. A single center experience. Pediatr Hematol Oncol 2014; 31:743-53. [PMID: 24308761 DOI: 10.3109/08880018.2013.859188] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report a retrospective analysis of Cytomegalovirus (CMV) infection: incidence, recurrence, resistance, and subsequent disease of 81 children who underwent allogenic hematopoietic stem cell transplantation (HSCT). The recipient and/or donor's CMV serology was positive prior to transplant [recipient (R+) and/or donor (D+)]. CMV was monitored by RT-PCR starting from the first week post transplant. Forty patients showed CMV infection (49, 5%). Of them 10 manifested CMV disease leading to four deaths. In univariate analysis, factors associated with CMV infection were CMV R+ P < .01, CMV R+/D+ pair P < .01, nonbone marrow (BM) stem cell source P < .05, nonirradiation conditioning regimen P < .05, Antithymocyte globulin (ATG) P < .01. Factors associated with CMV resistance were: >1 HLA allele mismatch P < .05, CMV R +/D-pair P < .01, CMV D-P < .01, non-BM P < .05, nongenoidentical transplant P < .01. CMV disease was influenced by >1 HLA allele mismatch (P < .001), non-BM (P < .01). On multivariate analysis, CMV R+/D- (P < .05), corticosteroids ≥2 mg/kg P < .01, ATG P < .01 and non-BM (P < .05) were independent factors for CMV infection. CMV R+ transplant is associated with more CMV infection and resistance to preemptive treatment. Prolonged immune suppression (IS) worsens outcome of CMV infection and should be shortened whenever possible.
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Affiliation(s)
- M Sedky
- Pediatric Department, National Research Center , Cairo , Egypt
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28
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Morana A, Girard S, Marin E, Marcandella C, Paillet P, Périsse J, Macé JR, Boukenter A, Cannas M, Ouerdane Y. Radiation tolerant fiber Bragg gratings for high temperature monitoring at MGy dose levels. Opt Lett 2014; 39:5313-5316. [PMID: 26466259 DOI: 10.1364/ol.39.005313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a method for fabricating fiber Bragg gratings (FBG) resistant to very severe environments mixing high radiation doses (up to 3 MGy) and high temperatures (up to 230°C). Such FBGs have been written in two types of radiation resistant optical fibers (pure-silica and fluorine-doped cores) by exposures to a 800 nm femtosecond IR laser at power exceeding 500 mW and then subjected to a thermal annealing treatment of 15 min at 750°C. Under radiation, our study reveals that the radiation induced Bragg wavelength shift (BWS) at a 3 MGy dose is strongly reduced compared to responses of FBGs written with nonoptimized conditions. The BWS remains lower than 10 pm for temperatures of irradiation ranging from 25°C to 230°C without noticeable decrease of the FBG peak amplitude. For an applicative point of view, this radiation induced BWS corresponds to an additional error on the temperature measurements lower than 1.5°C, opening the way to the development of radiation-tolerant multi-point temperature sensors for nuclear industry.
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Girard S, Laurent A, Pinsard E, Robin T, Cadier B, Boutillier M, Marcandella C, Boukenter A, Ouerdane Y. Radiation-hard erbium optical fiber and fiber amplifier for both low- and high-dose space missions. Opt Lett 2014; 39:2541-2544. [PMID: 24784040 DOI: 10.1364/ol.39.002541] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a new structure for erbium-doped optical fibers [hole-assisted carbon-coated, (HACC)] that, combined with an appropriate choice of codopants in the core, strongly enhances their radiation tolerance. We built an erbium-doped fiber amplifier based on this HACC fiber and characterize its degradation under γ-ray doses up to 315 krad (SiO2) in the ON mode. The 31 dB amplifier is practically radiation insensitive, with a gain change of merely -2.2×10(-3) dB/krad. These performances authorize the use of HACC doped fibers and amplifiers for various applications in environments associated with today's missions (of doses up to 50 krad) and even for future space missions associated with higher dose constraints.
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Clappier E, Auclerc MF, Rapion J, Bakkus M, Caye A, Khemiri A, Giroux C, Hernandez L, Kabongo E, Savola S, Leblanc T, Yakouben K, Plat G, Costa V, Ferster A, Girard S, Fenneteau O, Cayuela JM, Sigaux F, Dastugue N, Suciu S, Benoit Y, Bertrand Y, Soulier J, Cavé H. An intragenic ERG deletion is a marker of an oncogenic subtype of B-cell precursor acute lymphoblastic leukemia with a favorable outcome despite frequent IKZF1 deletions. Leukemia 2013; 28:70-7. [PMID: 24064621 DOI: 10.1038/leu.2013.277] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 09/13/2013] [Accepted: 09/17/2013] [Indexed: 11/09/2022]
Abstract
Oncogenic subtypes in childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL) are used for risk stratification. However, a significant number of BCP-ALL patients are still genetically unassigned. Using array-comparative genomic hybridization in a selected BCP-ALL cohort, we characterized a recurrent V(D)J-mediated intragenic deletion of the ERG gene (ERG(del)). A breakpoint-specific PCR assay was designed and used to screen an independent non-selected cohort of 897 children aged 1-17 years treated for BCP-ALL in the EORTC-CLG 58951 trial. ERG(del) was found in 29/897 patients (3.2%) and was mutually exclusive of known classifying genetic lesions, suggesting that it characterized a distinct leukemia entity. ERG(del) was associated with higher age (median 7.0 vs. 4.0 years, P=0.004), aberrant CD2 expression (43.5% vs. 3.7%, P<0.001) and frequent IKZF1 Δ4-7 deletions (37.9% vs. 5.3%, P<0.001). However, ERG(del) patients had a very good outcome, with an 8-year event-free survival (8-y EFS) and an 8-year overall survival of 86.4% and 95.6%, respectively, suggesting that the IKZF1 deletion had no impact on prognosis in this genetic subtype. Accordingly, within patients with an IKZF1 Δ4-7 deletion, those with ERG(del) had a better outcome (8-y EFS: 85.7% vs. 51.3%; hazard ratio: 0.16; 95% confidence interval: 0.02-1.20; P=0.04). These findings have implications for further stratification including IKZF1 status.
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Affiliation(s)
- E Clappier
- 1] U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France [2] Department of Genetics, Robert Debré Hospital, APHP, Paris, France [3] Hematology University Institute, University Paris-Diderot, Paris, France
| | - M F Auclerc
- 1] U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France [2] Department of Pediatric Hematology, St-Louis Hospital, APHP, Paris, France
| | - J Rapion
- EORTC Headquarters, Brussels, Belgium
| | - M Bakkus
- Molecular Hematology Laboratory, UZ Brussels, Brussels, Belgium
| | - A Caye
- Department of Genetics, Robert Debré Hospital, APHP, Paris, France
| | - A Khemiri
- Department of Genetics, Robert Debré Hospital, APHP, Paris, France
| | - C Giroux
- Department of Genetics, Robert Debré Hospital, APHP, Paris, France
| | - L Hernandez
- U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France
| | - E Kabongo
- Molecular Hematology Laboratory, UZ Brussels, Brussels, Belgium
| | - S Savola
- MRC-Holland, Amsterdam, The Netherlands
| | - T Leblanc
- Department of Pediatric Hematology, St-Louis Hospital, APHP, Paris, France
| | - K Yakouben
- Department of Pediatric Hematology, Robert-Debré Hospital, APHP, Paris, France
| | - G Plat
- Department of Pediatric Onco-Hematology, University Hospital Purpan, Toulouse, France
| | - V Costa
- Department of Pediatrics, Portuguese Oncology Institute, Porto, Portugal
| | - A Ferster
- Department of Pediatric Onco-Hematology, Children's University Hospital Reine Fabiola, Brussels, Belgium
| | - S Girard
- Hematology Laboratory, IHOP, Lyon, France
| | - O Fenneteau
- Hematology Laboratory, Robert Debré Hospital, APHP, Paris, France
| | - J M Cayuela
- 1] U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France [2] Hematology University Institute, University Paris-Diderot, Paris, France
| | - F Sigaux
- 1] U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France [2] Hematology University Institute, University Paris-Diderot, Paris, France
| | - N Dastugue
- Hematology Laboratory, University Hospital Purpan, Toulouse, France
| | - S Suciu
- EORTC Headquarters, Brussels, Belgium
| | - Y Benoit
- Department of Pediatric Hematology-Oncology, Ghent University Hospital, Ghent, Belgium
| | - Y Bertrand
- Department of Pediatric Hematology, IHOP and Claude Bernard University, Lyon, France
| | - J Soulier
- 1] U944 INSERM and Hematology laboratory, St-Louis Hospital, APHP, Paris, France [2] Hematology University Institute, University Paris-Diderot, Paris, France
| | - H Cavé
- 1] Department of Genetics, Robert Debré Hospital, APHP, Paris, France [2] Hematology University Institute, University Paris-Diderot, Paris, France
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Richard N, Martin-Samos L, Girard S, Ruini A, Boukenter A, Ouerdane Y, Meunier JP. Oxygen deficient centers in silica: optical properties within many-body perturbation theory. J Phys Condens Matter 2013; 25:335502. [PMID: 23877003 DOI: 10.1088/0953-8984/25/33/335502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The electronic and optical properties of neutral oxygen vacancies, also called oxygen deficient centers (ODC(I)s), have been investigated in pure and germanium doped silica (both amorphous and α-quartz) through first-principles calculations. By means of density functional theory and many-body perturbation theory (GW approximation and the solution of the Bethe-Salpeter equation), we obtain the atomic and electronic structures as well as the optical absorption spectra of pure and Ge-doped silica in the presence of ODCs (SiODC(I)s and GeODC(I)s); our study allows us to interpret and explain the very nature of the optical features in experimental absorption spectra. The theoretical optical absorption signatures of these defects show excellent agreement with experiments for the SiODC(I)s, i.e. two absorption bands arise around 7.6 eV due to transitions between the defect levels. Our theoretical results also explain the experimental difficulty in measuring the GeODC(I) absorption band in Ge-doped silica, which was in fact tentatively assigned to a broad and very weak absorption signature, located between 7.5 and 8.5 eV. The influence of Ge-doping induced disorder on the nature of the defect-related optical transitions is discussed. We find that even if the atomic and electronic structures of SiODC(I) and GeODC(I) defects are relatively similar, the slight network distortion induced by the presence of the Ge atom, together with the increase in the Ge-Si bond asymmetry, completely changes the nature of the optical absorption edge.
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Affiliation(s)
- N Richard
- CEA, DAM, DIF, Bruyères-le-Châtel, F-91297 Arpajon Cedex, France.
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Laroche M, Cadier B, Gilles H, Girard S, Lablonde L, Robin T. 20 W continuous-wave cladding-pumped Nd-doped fiber laser at 910 nm. Opt Lett 2013; 38:3065-7. [PMID: 24104649 DOI: 10.1364/ol.38.003065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We demonstrate a double-clad fiber laser operating at 910 nm with a record power of 20 W. Laser emission on the three-level scheme is enabled by the combination of a small inner cladding-to-core diameter ratio and a high brightness pump source at 808 nm. A laser conversion efficiency as high as 44% was achieved in CW operating regime by using resonant fiber Bragg reflectors at 910 nm that prevent the lasing at the 1060 nm competing wavelength. Furthermore, in a master oscillator power-amplifier scheme, an amplified power of 14.8 W was achieved at 914 nm in the same fiber.
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Goiffon V, Girard S, Chabane A, Paillet P, Magnan P, Cervantes P, Martin-Gonthier P, Baggio J, Estribeau M, Bourgade JL, Darbon S, Rousseau A, Glebov VY, Pien G, Sangster TC. Vulnerability of CMOS image sensors in Megajoule Class Laser harsh environment. Opt Express 2012; 20:20028-20042. [PMID: 23037056 DOI: 10.1364/oe.20.020028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CMOS image sensors (CIS) are promising candidates as part of optical imagers for the plasma diagnostics devoted to the study of fusion by inertial confinement. However, the harsh radiative environment of Megajoule Class Lasers threatens the performances of these optical sensors. In this paper, the vulnerability of CIS to the transient and mixed pulsed radiation environment associated with such facilities is investigated during an experiment at the OMEGA facility at the Laboratory for Laser Energetics (LLE), Rochester, NY, USA. The transient and permanent effects of the 14 MeV neutron pulse on CIS are presented. The behavior of the tested CIS shows that active pixel sensors (APS) exhibit a better hardness to this harsh environment than a CCD. A first order extrapolation of the reported results to the higher level of radiation expected for Megajoule Class Laser facilities (Laser Megajoule in France or National Ignition Facility in the USA) shows that temporarily saturated pixels due to transient neutron-induced single event effects will be the major issue for the development of radiation-tolerant plasma diagnostic instruments whereas the permanent degradation of the CIS related to displacement damage or total ionizing dose effects could be reduced by applying well known mitigation techniques.
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Affiliation(s)
- V Goiffon
- ISAE, Université de Toulouse, 10 ave. E. Belin, 31055 Toulouse, France.
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Rousseau A, Darbon S, Girard S, Paillet P, Bourgade JL, Goiffon V, Magnan P, Lalucaa V, Hamel M, Larour J. Vulnerability of optical detection systems to megajoule class laser radiative environment. ACTA ACUST UNITED AC 2012. [DOI: 10.1117/12.921883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Girard S, Ouerdane Y, Bouazaoui M, Marcandella C, Boukenter A, Bigot L, Kudlinski A. Transient radiation-induced effects on solid core microstructured optical fibers. Opt Express 2011; 19:21760-21767. [PMID: 22109027 DOI: 10.1364/oe.19.021760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report transient radiation-induced effects on solid core microstructured optical fibers (MOFs). The kinetics and levels of radiation-induced attenuation (RIA) in the visible and near-infrared part of the spectrum (600 nm-2000 nm) were characterized. It is found that the two tested MOFs, fabricated by the stack-and-draw technique, present a good radiation tolerance. Both have similar geometry but one has been made with pure-silica tubes and the other one with Fluorine-doped silica tubes. We compared their pulsed X-ray radiation sensitivities to those of different classes of conventional optical fibers with pure-silica-cores or cores doped with Phosphorus or Germanium. The pulsed radiation sensitivity of MOFs seems to be mainly governed by the glass composition whereas their particular structure does not contribute significantly. Similarly for doped silica fibers, the measured spectral dependence of RIA for the MOFs cannot be correctly reproduced with the various absorption bands associated with the Si-related defects identified in the literature. However, our analysis confirms the preponderant role of self-trapped holes with their visible and infrared absorption bands in the transient behaviors of pure-silica of F-doped fibers. The results of this study showed that pure-silica or fluorine-doped MOFs, which offers specific advantages compared to conventional fibers, are promising for use in harsh environments due to their radiation tolerance.
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Affiliation(s)
- S Girard
- CEA, DAM, DIF, F91297 Arpajon, France.
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Chantant M, Genini L, Bayetti P, Millet F, Wanner M, Massaut V, Corte AD, Ardelier-Desage F, Catherine-Dumont V, Dael A, Decool P, Donati A, Duchateau J, Garibaldi P, Girard S, Hatchressian J, Fejoz P, Jamotton P, Jourdheuil L, Juster F, Kuster O, Lebourg P, Leroux F, Molinie F, Renard B, Reynaud P, Schild T, Spuig P, Turtu S, Vieillard L, Walter C. A coil test facility for the cryogenic tests of the JT-60SA TF coils. Fusion Engineering and Design 2011. [DOI: 10.1016/j.fusengdes.2011.03.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Laroche M, Bartolacci C, Cadier B, Gilles H, Girard S, Lablonde L, Robin T. Generation of 520 mW pulsed blue light by frequency doubling of an all-fiberized 978 nm Yb-doped fiber laser source. Opt Lett 2011; 36:3909-3911. [PMID: 21964138 DOI: 10.1364/ol.36.003909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Pulsed blue light at 489 nm has been generated by second-harmonic-generation of a nanosecond pulsed master-oscillator power amplifier system based on a short Yb(3+) doped single-mode fiber amplifier at 978 nm and an external-cavity diode laser as seed source. The Yb(3+)-doped fiber was core-pumped by a W type Nd(3+) doped double-clad fiber laser operating on the transition near 930 nm ((4)F(3/2)→(4)I(9/2)). 520 mW of average power was generated at 489 nm using a periodically poled MgO:LiNbO(3), corresponding to a conversion efficiency of 34%.
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Affiliation(s)
- M Laroche
- Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP), ENSICAEN, CNRS, CEA/IRAMIS, Université de Caen, 14050 Caen cedex, France.
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Alessi A, Girard S, Cannas M, Agnello S, Boukenter A, Ouerdane Y. Evolution of photo-induced defects in Ge-doped fiber/preform: influence of the drawing. Opt Express 2011; 19:11680-11690. [PMID: 21716400 DOI: 10.1364/oe.19.011680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have studied the generation mechanisms of two different radiation-induced point defects, the Ge(1) and Ge(2) centers, in a germanosilicate fiber and in its original preform. The samples have been investigated before and after X-ray irradiation using the confocal microscopy luminescence and the electron paramagnetic resonance techniques. Our experimental results show the higher radiation sensitivity of the fiber as compared to the perform and suggest a relation between Ge(1) and Ge(2) generation. To explain our data we have used different models, finding that the destruction probability of the Ge(1) and Ge(2) defects is larger in fiber than in preform, whereas the generation one is similar. Finally we found that the higher radiation sensitivity of the fiber at low doses is essentially related to the presence of germanium lone pair center generated by the drawing.
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Affiliation(s)
- A Alessi
- Laboratoire H. Curien, UMR CNRS 5516, Université Jean Monnet, Saint-Etienne, France.
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Laroche M, Gilles H, Girard S. High-peak-power nanosecond pulse generation by stimulated Brillouin scattering pulse compression in a seeded Yb-doped fiber amplifier. Opt Lett 2011; 36:241-243. [PMID: 21263513 DOI: 10.1364/ol.36.000241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We demonstrate the generation of nanosecond and multikilowatt peak-power pulses in a double-clad Yb-doped fiber amplifier seeded by a spectrally narrowed gain-switched laser diode. Injected pulses with 100 ns duration were simultaneously compressed and amplified by the combination of high amplifier gain and stimulated Brillouin scattering. A maximum peak power of 20 kW has been obtained, corresponding to a single-pass gain of +57 dB in terms of peak power. Part of this output signal was also converted into IR continuum light by splicing a length of single-mode fiber at the end of the fiber amplifier.
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Affiliation(s)
- M Laroche
- Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), ENSICAEN, CNRS, CEA/IRAMIS, Université de Caen, 14050 CAEN cedex, France.
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Ducassou S, Ferlay C, Bergeron C, Girard S, Laureys G, Pacquement H, Plantaz D, Vannier J, Uyttebroeck A, Lutz P, Bertrand Y. CL097 - Les lymphomes lymphoblastiques pré-B dans les protocoles LMT96, EORTC 58881, et 58951. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70321-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Srour M, Riviere JB, Pham JMT, Dube MP, Girard S, Morin S, Dion PA, Asselin G, Rochefort D, Hince P, Diab S, Sharafaddinzadeh N, Chouinard S, Theoret H, Charron F, Rouleau GA. Mutations in DCC Cause Congenital Mirror Movements. Science 2010; 328:592. [DOI: 10.1126/science.1186463] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Collignon O, Girard S, Gosselin F, Saint-Amour D, Lepore F, Lassonde M. Women process multisensory emotion expressions more efficiently than men. Neuropsychologia 2010; 48:220-5. [PMID: 19761782 DOI: 10.1016/j.neuropsychologia.2009.09.007] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Revised: 09/08/2009] [Accepted: 09/09/2009] [Indexed: 11/28/2022]
Abstract
Despite claims in the popular press, experiments investigating whether female are more efficient than male observers at processing expression of emotions produced inconsistent findings. In the present study, participants were asked to categorize fear and disgust expressions displayed auditorily, visually, or audio-visually. Results revealed an advantage of women in all the conditions of stimulus presentation. We also observed more nonlinear probabilistic summation in the bimodal conditions in female than male observers, indicating greater neural integration of different sensory-emotional informations. These findings indicate robust differences between genders in the multisensory perception of emotion expression.
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Affiliation(s)
- O Collignon
- Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, Montreal, Canada.
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Rénard C, Girard S, Pracros JP, Dijoud F, André JM, Mialou V, Bertrand Y. [Granulocytic sarcoma, a diagnostic challenge: 3 pediatric cases]. Arch Pediatr 2009; 17:149-53. [PMID: 19945260 DOI: 10.1016/j.arcped.2009.10.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 07/13/2009] [Accepted: 10/25/2009] [Indexed: 12/15/2022]
Abstract
Granulocytic sarcoma (GS) is a rare extramedullary tumor frequently associated with acute myeloblastic leukemia (AML). We report 3 cases of pediatric granulocytic sarcomas with various locations: skin, orbit, and bowel. Cases 1 and 2 were associated with AML; case 3 was isolated. In all 3 cases, the diagnosis was delayed or initially missed. Pathology and immunohistochemistry data identified the disease. GS is treated with chemotherapy, like AML. The prognosis of GS seems better than that of isolated AML.
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Affiliation(s)
- C Rénard
- Institut d'hématologie et d'oncologie pédiatrique, 1, place Joseph-Renaut, 69008 Lyon, France.
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Origlio G, Cannas M, Girard S, Boscaino R, Boukenter A, Ouerdane Y. Influence of the drawing process on the defect generation in multistep-index germanium-doped optical fibers. Opt Lett 2009; 34:2282-2284. [PMID: 19649071 DOI: 10.1364/ol.34.002282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Variation of germanium lone pair center (GLPC) concentration in germanosilicate multistep-index optical fibers and preforms was studied using confocal microscopy luminescence technique. The experimental results provide evidence that in the central core region ([Ge] approximately 11 wt.%) of our specific canonical samples the ratio [GLPC]/[Ge] is five times larger in fiber than in preforms. The relative influence of the glass composition and of the drawing process on the generation efficiency of the GLPC defects that drive the glass photosensitivity is discussed. The radial distribution of these defects suggests a possible enhancement of the defect creation related to the internal stress of the fiber core.
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Affiliation(s)
- G Origlio
- Laboratoire H. Curien, UMR CNRS 5516, Université Jean Monnet, 18 rue du Pr.Benoît Lauras 42000, Saint-Etienne, France.
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Bernard-Michel C, Douté S, Fauvel M, Gardes L, Girard S. Retrieval of Mars surface physical properties from OMEGA hyperspectral images using regularized sliced inverse regression. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008je003171] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Blieck J, Fléchard X, Cassimi A, Gilles H, Girard S, Hennecart D. A new MOTRIMS apparatus for high resolution measurements in ion-atom collisions and trapped atoms studies. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/163/1/012070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nannini M, Cloez H, Girard S, Roux C, Serries JP, Tena M, Zani L, Mossang E. Characterization of industrial NbTi strands at variable field for JT-60SA toroidal field coils. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2009.01.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gaudry P, Lebbar A, Choiset A, Girard S, Lewin F, Tsatsaris V, Grangé G. Is Rapid Aneuploidy Screening Used Alone Acceptable in Prenatal Diagnosis? An Evaluation of the Possible Role of Ultrasound Examination. Fetal Diagn Ther 2009; 25:285-90. [DOI: 10.1159/000224429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Accepted: 09/15/2008] [Indexed: 11/19/2022]
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Girard S, Kadhim H, Beaudet N, Sarret P, Sébire G. Developmental motor deficits induced by combined fetal exposure to lipopolysaccharide and early neonatal hypoxia/ischemia: a novel animal model for cerebral palsy in very premature infants. Neuroscience 2008; 158:673-82. [PMID: 19010395 DOI: 10.1016/j.neuroscience.2008.10.032] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 10/20/2008] [Accepted: 10/22/2008] [Indexed: 11/28/2022]
Abstract
A critical issue in animal models of perinatal brain injury is to adapt the pertinent pathophysiological scenarios to their corresponding developmental window in order to induce neuropathological and behavioral characteristics reminiscent to perinatal cerebral palsy (CP). A major problem in most of these animal models designed up to now is that they do not present motor deficits characteristic of CP. Using a unique rat paradigm of prenatal inflammation combined to an early postnatal hypoxia-ischemia pertinent to the context of very early premature human newborns, we were interested in finding out if such experimental conditions might reproduce both histological damages and behavioral deficits previously described in the human context. We showed that exposure to lipopolysaccharide (LPS) or hypoxia-ischemia (H/I) induced behavioral alterations in animals subjected to forced motor activity. When both LPS and H/I aggressions were combined, the motor deficits reached their highest intensity and affected both spontaneous and forced motor activities. LPS+H/I-exposed animals also showed extensive bilateral cortical and subcortical lesions of the motor networks affecting the frontal cortices and underlying white matters fascicles, lenticular nuclei and the substantia nigra. These neuropathological lesions and their associated motor behavioral deficits are reminiscent of those observed in very preterm human neonates affected by subsequent CP and validate the value of the present animal model to test new therapeutic strategies which might open horizons for perinatal neuroprotection.
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Affiliation(s)
- S Girard
- Laboratoire de Neuropédiatrie, Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001 12eme avenue Nord, Sherbrooke, Québec, Canada J1H5N4
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