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Dubois M, Bossy E, Enoch S, Guenneau S, Lerosey G, Sebbah P. Time-driven superoscillations with negative refraction. PHYSICAL REVIEW LETTERS 2015; 114:013902. [PMID: 25615470 DOI: 10.1103/physrevlett.114.013902] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Indexed: 06/04/2023]
Abstract
The flat-lens concept based on negative refraction proposed by Veselago in 1968 has been mostly investigated in the monochromatic regime. It was recently recognized that time development of the superlensing effect discovered in 2000 by Pendry is yet to be assessed and may spring surprises: Time-dependent illumination could improve the spatial resolution of the focusing. We investigate dynamics of flexural wave focusing by a 45°-tilted square lattice of circular holes drilled in a duralumin plate. Time-resolved experiments reveal that the focused image shrinks with time below the diffraction limit, with a lateral resolution increasing from 0.8λ to 0.35λ, whereas focusing under harmonic excitation remains diffraction limited. Modal analysis reveals the role in pulse reconstruction of radiating lens resonances, which repeatedly self-synchronize at the focal spot to shape a superoscillating field.
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Ahmad Y, Disa E, Guérin K, Dubois M, Petit E, Hamwi A, Thomas P, Mansot JL. Structure control at the nanoscale in fluorinated graphitized carbon blacks through the fluorination route. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.09.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Coste F, Toussaint C, Dubois M, Courtois A, Guibert C, Marthan R, Savineau JP, Muller B, Freund-Michel V. Role of the nerve growth factor NGF in severe pulmonary hypertension. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2014.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Brunet J, Pauly A, Dubois M, Rodriguez-Mendez M, Ndiaye A, Varenne C, Guérin K. Improved selectivity towards NO2 of phthalocyanine-based chemosensors by means of original indigo/nanocarbons hybrid material. Talanta 2014; 127:100-7. [DOI: 10.1016/j.talanta.2014.03.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 03/21/2014] [Accepted: 03/27/2014] [Indexed: 11/15/2022]
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Dubois M, Lapinte N, Villier V, Lecointre C, Roy V, Tonon MC, Gandolfo P, Joly F, Hilber P, Castel H. Chemotherapy-induced long-term alteration of executive functions and hippocampal cell proliferation: Role of glucose as adjuvant. Neuropharmacology 2014; 79:234-48. [DOI: 10.1016/j.neuropharm.2013.11.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 11/18/2013] [Accepted: 11/19/2013] [Indexed: 11/28/2022]
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De Neubourg D, Bogaerts K, Wyns C, Camus M, Delbaere A, Delvigne A, De Sutter P, Dubois M, Gordts S, Lejeune B, Leroy F, Vandekerckhove F, D'Hooghe T. Reply: the danger of ignoring pregnancy and delivery rates in ART. Hum Reprod 2014; 29:1830-1. [PMID: 24491298 DOI: 10.1093/humrep/deu010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Maunoury L, Delahaye P, Angot J, Dubois M, Dupuis M, Frigot R, Grinyer J, Jardin P, Leboucher C, Lamy T. Future carbon beams at SPIRAL1 facility: which method is the most efficient? THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02A504. [PMID: 24593427 DOI: 10.1063/1.4828374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Compared to in-flight facilities, Isotope Separator On-Line ones can in principle produce significantly higher radioactive ion beam intensities. On the other hand, they have to cope with delays for the release and ionization which make the production of short-lived isotopes ion beams of reactive and refractory elements particularly difficult. Many efforts are focused on extending the capabilities of ISOL facilities to those challenging beams. In this context, the development of carbon beams is triggering interest [H. Frånberg, M. Ammann, H. W. Gäggeler, and U. Köster, Rev. Sci. Instrum. 77, 03A708 (2006); M. Kronberger, A. Gottberg, T. M. Mendonca, J. P. Ramos, C. Seiffert, P. Suominen, and T. Stora, in Proceedings of the EMIS 2012 [Nucl. Instrum. Methods Phys. Res. B Production of molecular sideband radioisotope beams at CERN-ISOLDE using a Helicon-type plasma ion source (to be published)]: despite its refractory nature, radioactive carbon beams can be produced from molecules (CO or CO2), which can subsequently be broken up and multi-ionized to the required charge state in charge breeders or ECR sources. This contribution will present results of experiments conducted at LPSC with the Phoenix charge breeder and at GANIL with the Nanogan ECR ion source for the ionization of carbon beams in the frame of the ENSAR and EMILIE projects. Carbon is to date the lightest condensable element charge bred with an ECR ion source. Charge breeding efficiencies will be compared with those obtained using Nanogan ECRIS and charge breeding times will be presented as well.
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Maurel M, Belzeaux R, Fakra E, Cermolacce M, Dassa D, Dubois M, Micoulaud Franchi JA, Corréard N, Azorin JM. [Clinical description of mixed mania]. Encephale 2013; 39 Suppl 3:S145-8. [PMID: 24359852 DOI: 10.1016/s0013-7006(13)70113-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
DSM-IV mixed states have become the mixed mania and mixed depression in the new DSM-5. One noticeable point is the introduction of nine cations, among which the "with mixed features" specification. These non exclusive specifications may contribute to a more precise identification of mixed clinical pictures, and therefore to offer a more efficient therapeutic answer. Different dimensional approaches are widely documented. They allow the isolation of a mixed factor which is clinically associated with two other specifications: anxious distress and psychotic features. These severity markers may encourage clinicians to be alert about the risk of misdiagnosis, and cautious in the management of these clinical situations.
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Corréarda N, Azorin JM, Belzeaux R, Cermolacce M, Fakra E, Micoulaud-Franchi JA, Dassa D, Dubois M, Pringuey D, Kaladjian A. [Neurocognitive fuctioning in pure mania and mixed mania]. Encephale 2013; 39 Suppl 3:S157-61. [PMID: 24359854 DOI: 10.1016/s0013-7006(13)70115-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Neurocognitive dysfunction is increasingly recognized as a prominent feature of bipolar disorder. Cognitive function seems to be impaired across different states of bipolar illness. Nervertheless, research that studies neuropsychological functioning in acute phases is scarce. Acutely ill patients have shown dysfunctions in several cognitive areas. We reviewed the literature on neuropsychological studies of acute phases to highlight neurocognitive deficits in mixed and pure mania. The results show dysfunctions in sustained attention that are significantly more important in mixed mania rather than in pure mania. Impulsive pattern of responding seems to characterize pure manic state. We also found impairments in processing speed, verbal and spatial learning/memory and executive functions, including cognitive flexibility, inhibitory control, conceptual reasoning, planning and problem solving. Disturbance in executive functioning seems to be more important in pure mania rather than mixed mania.
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Dassa D, Dubois M, Maurel M, Fakra E, Pringuey D, Belzeaux R, Kaladjian A, Cermolacce M, Azorin JM. Traitements anti- maniaques dans les états mixtes. Encephale 2013; 39 Suppl 3:S172-8. [DOI: 10.1016/s0013-7006(13)70118-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cermolacce M, Belzeaux R, Corréard N, Dassa D, Dubois M, Micoulaud-Franchi JA, Pringuey D, Fakra E, Maurel M, Azorin JM. Une approche historique des états mixtes. Encephale 2013; 39 Suppl 3:S129-33. [DOI: 10.1016/s0013-7006(13)70110-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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MacHaalany J, Bertrand O, Voisine P, O'Connor K, Bernier M, Dubois-Sénéchal I, Jacques P, Viel I, Dubois M, Sénéchal M. Predictors of Outcomes After Surgical Correction of Severe Aortic Regurgitation and Functional Mitral Regurgitation. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Garnier P, Le Cam JB, Grédiac M, Ababou-Girard S, Dubois M. On the evolution of the viscoelastic properties and its microstructural/chemical origin in filled NBR subjected to coupled thermal and mechanical loads. Polym Degrad Stab 2013. [DOI: 10.1016/j.polymdegradstab.2013.06.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Raymond S, Saliou A, Nicot F, Delobel P, Dubois M, Carcenac R, Saune K, Marchou B, Massip P, Izopet J. Characterization of CXCR4-using HIV-1 during primary infection by ultra-deep pyrosequencing. J Antimicrob Chemother 2013; 68:2875-81. [DOI: 10.1093/jac/dkt290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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De Neubourg D, Bogaerts K, Wyns C, Albert A, Camus M, Candeur M, Degueldre M, Delbaere A, Delvigne A, De Sutter P, Dhont M, Dubois M, Englert Y, Gillain N, Gordts S, Hautecoeur W, Lesaffre E, Lejeune B, Leroy F, Ombelet W, Perrier D'Hauterive S, Vandekerckhove F, Van der Elst J, D'Hooghe T. The history of Belgian assisted reproduction technology cycle registration and control: a case study in reducing the incidence of multiple pregnancy. Hum Reprod 2013; 28:2709-19. [PMID: 23820420 DOI: 10.1093/humrep/det269] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION What is the effect of a legal limitation of the number of embryos that can be transferred in an assisted reproductive technology (ART) cycle on the multiple delivery rate? SUMMARY ANSWER The Belgian national register shows that the introduction of reimbursement of ART laboratory costs in July 2003, and the imposition of a legal limitation of the number of embryos transferred in the same year, were associated with a >50% reduction of the multiple pregnancy rate from 27 to 11% between 2003 and the last assessment in 2010, without any reduction of the pregnancy rate per cycle. WHAT IS KNOWN ALREADY Individual Belgian IVF centres have published their results since the implementation of the law, and these show a decrease in the multiple pregnancy rate on a centre by centre basis. However, the overall national picture remains unpublished. STUDY DESIGN, SIZE, DURATION Cohort study from 1990 to 2010 of all ART cycles in Belgium (2685 cycles in 1990 evolving to 19 110 cycles in 2010), with a retrospective analysis from 1990 to 2000 and prospective online data collection since 2001. PARTICIPANTS/MATERIALS, SETTING, METHODS Registration evolved from paper written reports per centre to a compulsory online registration of all ART cycles. From 2001 up to mid-2009, data were collected from Excel spread sheets or MS Access files into an MS Access database. Since mid-2009, data collection is done via a remote and secured web-based system (www.belrap.be) where centres can upload their data and get immediate feedback about missing data, errors and inconsistencies. MAIN RESULTS AND THE ROLE OF CHANCE National Belgian registration data show that reimbursement of IVF laboratory costs in July 2003, coupled to a legal limitation in the number of embryos transferred in utero, were associated with a 50% reduction of the multiple pregnancy rate from 27 to 11% without reduction of the pregnancy rate per cycle, and with an increase in the number of fresh and frozen ART cycles due to improved access to treatment. LIMITATIONS, REASONS FOR CAUTION There is potential underreporting of complications of ART treatment, pregnancy outcome and neonatal health. WIDER IMPLICATIONS OF THE FINDINGS Over the 20 years of registration, the pregnancy rate has remained constant, despite the reduction in the number of embryos transferred, optimization of laboratory procedures and stimulation protocols, introduction of quality systems and implementation of the EU Tissue Directive over the period 2004-2010. STUDY FUNDING/COMPETING INTEREST(S) No external funding was sought for this study. None of the authors has any conflict of interest to declare.
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Abravanel F, Lhomme S, Dubois M, Peron JM, Alric L, Kamar N, Izopet J. Hepatitis E virus. Med Mal Infect 2013; 43:263-70. [DOI: 10.1016/j.medmal.2013.03.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 03/12/2013] [Accepted: 03/12/2013] [Indexed: 12/13/2022]
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Robert C, Gillard N, Brasseur PY, Pierret G, Ralet N, Dubois M, Delahaut P. Rapid multi-residue and multi-class qualitative screening for veterinary drugs in foods of animal origin by UHPLC-MS/MS. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:443-57. [DOI: 10.1080/19440049.2012.751632] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Dubois M, Bodaghi B, Brun AL, Capron F, Similowski T, Trosini-Désert V. Intérêt de la bronchoscopie dans le diagnostic des uvéites à forte suspicion de sarcoïdose. Rev Mal Respir 2013. [DOI: 10.1016/j.rmr.2012.10.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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69
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Frank N, Dubois M, Scholz G, Seefelder W, Chuat JY, Schilter B. Application of gastrointestinal modelling to the study of the digestion and transformation of dietary glycidyl esters. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:69-79. [DOI: 10.1080/19440049.2012.732245] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Dubois M, Ballivet de Régloix S, Raynal M, Lepage P, Kossowski M, Pons Y. [Diagnosis and therapeutic pathways in head and neck cancers]. REVUE DE LARYNGOLOGIE - OTOLOGIE - RHINOLOGIE 2013; 134:81-88. [PMID: 24683817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Cancers of uppers aero-digestives tracts represent, infrequency, the 5th cancer in the French population. Most of them (about 70%) are diagnosed at an advanced stage (stage III or IV) while they are associated with a poor prognosis (only 40% five year survival). The objective of our study was to analyze the care pathway of patients with cancers of uppers aero-digestives tracts in order to target efforts to improve the survival of these patients. METHODS It was a descriptive and retrospective study, on medical files, on the health care pathway of patients with cancers of uppers aero-digestives tracts cared in the Head and Neck surgery department of Val de Grâce in Paris and Percy in Clamart between January 2004 and December 2006. The patients were adults with squamous cell carcinoma of uppers aero-digestives tracts. RESULTS One hundred thirty-eight files of patients were analyzed. Fifty-five percent of patients were diagnosed at an advanced stage. On average patients have waited two months and twenty-one days before consulting a doctor for the first time. The time interval between the specialist consultation and the start of treatment was on average 7 weeks. The overall 5-year survival rate was 61%. CONCLUSION Squamous cell carcinoma of uppers aero-digestives tracts remains serious and has a poor diagnosis, even in a population with a high social-cultural level. The long time interval before the first consultation may be reduced by improving health education among the general practitioner (primary and secondary prevention), and by establishing health care public campaigns. This would allow earlier diagnosis, more conservative therapeutic opportunities and therefore a better prognosis.
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Lédée N, Gridelet V, Ravet S, Jouan C, Gaspard O, Wenders F, Thonon F, Hincourt N, Dubois M, Foidart JM, Munaut C, Perrier d'Hauterive S. Impact of follicular G-CSF quantification on subsequent embryo transfer decisions: a proof of concept study. Hum Reprod 2012; 28:406-13. [PMID: 23223438 PMCID: PMC3545637 DOI: 10.1093/humrep/des354] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Previous experiments have shown that granulocyte colony-stimulating factor (G-CSF), quantified in the follicular fluid (FF) of individual oocytes, correlates with the potential for an ongoing pregnancy of the corresponding fertilized oocytes among selected transferred embryos. Here we present a proof of concept study aimed at evaluating the impact of including FF G-CSF quantification in the embryo transfer decisions. METHODS FF G-CSF was quantified with the Luminex XMap technology in 523 individual FF samples corresponding to 116 fresh transferred embryos, 275 frozen embryos and 131 destroyed embryos from 78 patients undergoing ICSI. RESULTS Follicular G-CSF was highly predictive of subsequent implantation. The receiving operator characteristics curve methodology showed its higher discriminatory power to predict ongoing pregnancy in multivariate logistic regression analysis for FF G-CSF compared with embryo morphology [0.77 (0.69–0.83), P < 0.001 versus 0.66 (0.58–0.73), P = 0.01)]. Embryos were classified by their FF G-CSF concentration: Class I over 30 pg/ml (a highest positive predictive value for implantation), Class II from 30 to 18.4 pg/ml and Class III <18.4 pg/ml (a highest negative predictive value). Embryos derived from Class I follicles had a significantly higher implantation rate (IR) than those from Class II and III follicles (36 versus 16.6 and 6%, P < 0.001). Embryos derived from Class I follicles with an optimal morphology reached an IR of 54%. Frozen-thawed embryos transfer derived from Class I follicles had an IR of 37% significantly higher than those from Class II and III follicles, respectively, of 8 and 5% (P < 0.001). Thirty-five per cent of the frozen embryos but also 10% of the destroyed embryos were derived from G-CSF Class I follicles. Non-optimal embryos appear to have been transferred in 28% (22/78) of the women, and their pregnancy rate was significantly lower than that of women who received at least one optimal embryo (18 versus 36%, P = 0.04). CONCLUSIONS Monitoring FF G-CSF for the selection of embryos with a better potential for pregnancy might improve the effectiveness of IVF by reducing the time and cost required for obtaining a pregnancy.
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Azorin JM, Fakra E, Adida M, Belzeaux R, Cermolacce M, Mazzola P, Corréard N, Dubois M, Pringuey D, Sokolowsky M, Kaladjian A. Les endophénotypes tempéramentaux. Encephale 2012; 38 Suppl 3:S70-4. [DOI: 10.1016/s0013-7006(12)70081-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Dubois M, Azorin JM, Fakra E, Adida M, Belzeaux R. Endophénotypes émotionnels et troubles bipolaires. Encephale 2012; 38 Suppl 3:S85-92. [DOI: 10.1016/s0013-7006(12)70084-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Fakra E, Dubois M, Adida M, Corréard N, Kaladjian A, Mazzola P, Belzeaux R, Cermolacce M, Azorin JM. Les endophénotypes émotionnels dans les troubles bipolaires et la schizophrénie. Encephale 2012; 38 Suppl 3:S93-7. [DOI: 10.1016/s0013-7006(12)70085-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Puntous M, Pujol S, Roger I, Dubois M, Fratti C, Sauvage A, Signac É, Moisset V, Fialon P. Transfusion et perfusion simultanée de médicaments : état des lieux des pratiques et perspectives. Transfus Clin Biol 2012. [DOI: 10.1016/j.tracli.2012.08.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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