74 results on '"Vala, L."'
Search Results
2. Status of Pb-16Li technologies for European DEMO fusion reactor
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Utili, M., Bassini, S., Boccaccini, L., Bühler, L., Cismondi, F., Del Nevo, A., Eboli, M., DiFonzo, F., Hernandez, T., Wulf, S., Kordač, M., Martelli, D., De les Valls, E. Mas, Melichar, T., Mistrangelo, C., Tarantino, M., Tincani, A., and Vála, L.
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- 2019
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3. Measurement of the Double Beta Decay Half-life of 130Te with the NEMO-3 Detector
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Arnold, R., Augier, C., Baker, J., Barabash, A. S., Basharina-Freshville, A., Blondel, S., Bongrand, M., Broudin-Bay, G., Brudanin, V., Caffrey, A. J., Chapon, A., Chauveau, E., Durand, D., Egorov, V., Flack, R., Garrido, X., Grozier, J., Guillon, B., Hubert, Ph., Jackson, C. M., Jullian, S., Kauer, M., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Lang, K., Liptak, Z., Lutter, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Mott, J., Nachab, A., Nemchenok, I., Nguyen, C. H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R. B., Perrot, F., Piquemal, F., Reyss, J. L., Richards, B., Ricol, J. S., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Šimkovic, F., Smolnikov, A., Söldner-Rembold, S., Štekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Thomas, J., Timkin, V., Torre, S., Tretyak, V. I., Umatov, V., Vála, L., Vanyushin, I., Vasiliev, V., Vorobel, V., Vylov, T., and Zukauskas, A.
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Nuclear Experiment ,High Energy Physics - Experiment - Abstract
This Letter reports results from the NEMO-3 experiment based on an exposure of 1275 days with 661g of 130Te in the form of enriched and natural tellurium foils. The double beta decay rate of 130Te is found to be greater than zero with a significance of 7.7 standard deviations and the half-life is measured to be T1/2 = (7.0 +/- 0.9(stat) +/- 1.1(syst)) x 10^{20} yr. This represents the most precise measurement of this half-life yet published and the first real-time observation of this decay.
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- 2011
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4. Results of the BiPo-1 prototype for radiopurity measurements for the SuperNEMO double beta decay source foils
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A. S., Basharina-Freshville, A., Bongrand, M., Bourgeois, C., Breton, D., Briére, M., Broudin-Bay, G., Brudanin, V. B., Caffrey, A. J., Cebrián, S., Chapon, A., Chauveau, E., Dafni, Th., Díaz, J., Durand, D., Egorov, V. G., Evans, J. J., Flack, R., Fushima, K-I., Irastorza, I. G., Garrido, X., Gómez, H., Guillon, B., Holin, A., Holy, K, Horkey, J. J., Hubert, P., Hugon, C., Iguaz, F. J., Ishihara, N., Jackson, C. M., Jenzer, S., Jullian, S., Kauer, M., Kochetov, O. I., Konovalov, S. I., Kovalenko, V., Lamhamdi, T., Lang, K., Lemiére, Y., Lutter, G., Luzón, G., Mamedov, F., Marquet, Ch., Mauger, F., Monrabal, F., Nachab, A., Nemchenok, I. B., Nguyen, C. H., Nomachi, M., Nova, F., Ohsumi, H., Pahlka, R. B., Perrot, F., Piquemal, F., Povinec, P. P., Richards, B., Ricol, J. S., Riddle, C. L., Rodríguez, A., Saakyan, R., Sarazin, X., Sedgbeer, J. K., Serra, L., Shitov, Yu. A., Simard, L., Šimkovic, F., Söldner-Rembold, S., Štekl, I., Sutton, C. S., Tamagawa, Y., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V., Tretyak, Vl. I., Umatov, V. I., Vála, L., Vanyushin, I. A., Vasiliev, R., Vasiliev, V. A., Vorobel, V., Waters, D., Yahali, N., and Žukauskas, A.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
The development of BiPo detectors is dedicated to the measurement of extremely high radiopurity in $^{208}$Tl and $^{214}$Bi for the SuperNEMO double beta decay source foils. A modular prototype, called BiPo-1, with 0.8 $m^2$ of sensitive surface area, has been running in the Modane Underground Laboratory since February, 2008. The goal of BiPo-1 is to measure the different components of the background and in particular the surface radiopurity of the plastic scintillators that make up the detector. The first phase of data collection has been dedicated to the measurement of the radiopurity in $^{208}$Tl. After more than one year of background measurement, a surface activity of the scintillators of $\mathcal{A}$($^{208}$Tl) $=$ 1.5 $\mu$Bq/m$^2$ is reported here. Given this level of background, a larger BiPo detector having 12 m$^2$ of active surface area, is able to qualify the radiopurity of the SuperNEMO selenium double beta decay foils with the required sensitivity of $\mathcal{A}$($^{208}$Tl) $<$ 2 $\mu$Bq/kg (90% C.L.) with a six month measurement., Comment: 24 pages, submitted to N.I.M. A
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- 2010
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5. Measurement of the two neutrino double beta decay half-life of Zr-96 with the NEMO-3 detector
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A. S., Basharina-Freshville, A., Bongrand, M., Broudin-Bay, G., Brudanin, V., Caffrey, A. J., Chapon, A., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V., Fatemi-Ghomi, N., Flack, R., Guillon, B., Hubert, Ph., Jullian, S., Kauer, M., King, S., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Lang, K., Lemiere, Y., Longuemare, C., Lutter, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I., Nguyen, C. H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R. B., Perrot, F., Piquemal, F., Reyss, J. L., Ricol, J. S., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Simkovic, F., Smolnikov, A., Snow, S., Soldner-Rembold, S., Stekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V. I., Umatov, V., Vala, L., Vanyushin, I., Vasiliev, V., Vorobel, V., and Vylov, Ts.
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Nuclear Experiment - Abstract
Using 9.4 g of Zr-96 and 1221 days of data from the NEMO-3 detector corresponding to 0.031 kg yr, the obtained 2vbb decay half-life measurement is [2.35 +/- 0.14(stat) +/- 0.16(syst)] x 10^19 yr. Different characteristics of the final state electrons have been studied, such as the energy sum, individual electron energy, and angular distribution. The 2v nuclear matrix element is extracted using the measured 2vbb half-life and is 0.049 +/- 0.002. Constraints on 0vbb decay have also been set., Comment: Published in Nucl.Phys.A (10 pages, 10 figures)
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- 2009
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6. Progress in EU Breeding Blanket design and integration
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Cismondi, F., Boccaccini, L.V., Aiello, G., Aubert, J., Bachmann, C., Barrett, T., Barucca, L., Bubelis, E., Ciattaglia, S., Del Nevo, A., Diegele, E., Gasparotto, M., Di Gironimo, G., Di Maio, P.A., Hernandez, F., Federici, G., Fernández-Berceruelo, I., Franke, T., Froio, A., Gliss, C., Keep, J., Loving, A., Martelli, E., Maviglia, F., Moscato, I., Mozzillo, R., Poitevin, Y., Rapisarda, D., Savoldi, L., Tarallo, A., Utili, M., Vala, L., Veres, G., and Zanino, R.
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- 2018
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7. Possible background reductions in double beta decay experiments
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Arnold, R., Augier, C., Baker, J., Barabash, A., Bing, O., Brudanin, V., Caffrey, A. J., Caurier, E., Errahmane, K., Etienvre, A. -I., Guyonnet, J. L., Hubert, F., Hubert, Ph., Jollet, C., Jullian, S., Kochetov, O., Kovalenko, V., Lalanne, D., Leccia, F., Longuemare, C., Marquet, Ch., Mauger, F., Nicholson, H. W., Ohsumi, H., Piquemal, F., Reyss, J-L., Sarazin, X., Shitov, Yu., Simard, L., Stekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Timkin, V., Tretyak, V., Umatov, V., Vala, L., Vanyushin, I., Vasilyev, V., Vorobel, V., and Vylov, Ts.
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Nuclear Experiment - Abstract
The background induced by radioactive impurities of $^{208}\rm Tl$ and $^{214}\rm Bi$ in the source of the double beta experiment NEMO-3 has been investigated. New methods of data analysis which decrease the background from the above mentioned contamination are identified. The techniques can also be applied to other double beta decay experiments capable of measuring independently the energies of the two electrons., Comment: 15 pages, 13 figures, accepted in the Nuclear Instruments and Methods A
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- 2003
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8. Status of the engineering activities carried out on the European DCLL
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Rapisarda, D., Fernandez, I., Palermo, I., Urgorri, F.R., Maqueda, L., Alonso, D., Melichar, T., Frýbort, O., Vála, L., Gonzalez, M., Norajitra, P., Neuberger, H., and Ibarra, A.
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- 2017
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9. Objectives and status of EUROfusion DEMO blanket studies
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Boccaccini, L.V., Aiello, G., Aubert, J., Bachmann, C., Barrett, T., Del Nevo, A., Demange, D., Forest, L., Hernandez, F., Norajitra, P., Porempovic, G., Rapisarda, D., Sardain, P., Utili, M., and Vala, L.
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- 2016
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10. Standards of Care for the Health of Transgender and Gender Diverse People, Version 8
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Coleman, E., Radix, A. E., Bouman, W. P., Brown, G. R., de Vries, A. L. C., Deutsch, M. B., Ettner, R., Fraser, L., Goodman, M., Green, J., Hancock, A. B., Dhejne, C., Edmiston, E. K., Edwards Leeper, L., Ehrbar, R., Hall, B. P., Ehrensaft, D., Eisfeld, J., Feldman, J. L., Fisher, A. D., Garcia, M. M., Johnson, K., Klink, D. T., Gijs, L., Green, S. E., Hardy, T. L. D., Irwig, M. S., Jacobs, L. A., Mazur, T., Mclachlan, C., Janssen, A. C., Kreukels, B. P. C., Kuper, L. E., Kvach, E. J., Obedin Maliver, J., Malouf, M. A., Massey, R., Morrison, S. D., Mosser, S. W., Neira, P. M., Reed, T., Rider, G. N., Nygren, U., Oates, J. M., Pagkalos, G., Patton, J., Phanuphak, N., Sabir, K., Safer, J. D., Rachlin, K., Ristori, J., Robbins Cherry, S., Roberts, S. A., Steensma, T. D., Rodrigue Wallberg, K. A., Rosenthal, S. M., Scheim, A. I., Seal, L. J., Sehoole, T. J., Vala, L. N., Van Mello, N. M., Spencer, K., St. Amand, C., Strang, J. F., Taylor, G. B., Tilleman, K., Arcelus, J., Johnson, T. W., T’Sjoen, G. G., Veale, J. F., Vencill, J. a., Vincent, B., Motmans, J., Wesp, L. M., West, M. A., Karasic, D. H., Knudson, G. A., Leibowitz, S. F., Tangpricha, V., Tishelman, A. c., Meyer Bahlburg, H. F. L., Monstrey, S. J., Nahata, L., Nieder, T. O., Reisner, S. L., Allen, L. R., Richards, C., Schechter, L. S., Van Trotsenburg, M. A. A., Winter, S., Ducheny, K., Berg, D. R., Adams, N. J., Adrián, T. M., Azul, D., Bagga, H., Başar, K., Byrne, J., Capitán, L., Bathory, D. S., Belinky, J. J., Berli, J. U., Bluebond Langner, R. O., Bouman, M.B., Dalke, K. B., Bowers, M. L., Brassard, P. J., Cargill, C. J., Carswell, J. M., Chang, S. C., D’Marco, A., Chelvakumar, G., Corneil, T., De Cuypere, G., de Vries, E., Den Heijer, M., Elaut, E., Erickson Schroth, L., Devor, A. H., APH - Mental Health, APH - Quality of Care, VU University medical center, Plastic, Reconstructive and Hand Surgery, APH - Methodology, Other Research, Internal medicine, APH - Aging & Later Life, Amsterdam Gastroenterology Endocrinology Metabolism, Medical psychology, APH - Personalized Medicine, Amsterdam Reproduction & Development (AR&D), and Obstetrics and gynaecology
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CENTRAL PRECOCIOUS PUBERTY ,Health (social science) ,SOC8 ,assessment ,Psychology, Clinical ,Medicine (miscellaneous) ,Social Sciences ,population ,institutional settings ,surgery ,Endocrinologia ,Transgèneres ,QUALITY-OF-LIFE ,terminology ,Medicine and Health Sciences ,Social Sciences - Other Topics ,Psychology ,adolescents ,Public, Environmental & Occupational Health ,education ,intersex ,AFFIRMING HORMONE-THERAPY ,communication ,Health Policy ,WORLD PROFESSIONAL ASSOCIATION ,Social Sciences, Interdisciplinary ,transgender ,OVARIAN TISSUE CRYOPRESERVATION ,eunuch ,PENILE INVERSION VAGINOPLASTY ,Life Sciences & Biomedicine ,mental health ,nonbinary ,sexual health ,FACIAL FEMINIZATION SURGERY ,Gender Studies ,Transgender people ,endocrinology ,primary care ,SEX REASSIGNMENT SURGERY ,children ,reproductive health ,Science & Technology ,voice ,postoperative care ,Biomedical Social Sciences ,Social Sciences, Biomedical ,health care professional ,gender diverse ,CONGENITAL ADRENAL-HYPERPLASIA ,Standards of Care ,TO-FEMALE TRANSSEXUALS - Abstract
Background: Transgender healthcare is a rapidly evolving interdisciplinary field. In the last decade, there has been an unprecedented increase in the number and visibility of transgender and gender diverse (TGD) people seeking support and gender-affirming medical treatment in parallel with a significant rise in the scientific literature in this area. The World Professional Association for Transgender Health (WPATH) is an international, multidisciplinary, professional association whose mission is to promote evidence-based care, education, research, public policy, and respect in transgender health. One of the main functions of WPATH is to promote the highest standards of health care for TGD people through the Standards of Care (SOC). The SOC was initially developed in 1979 and the last version (SOC-7) was published in 2012. In view of the increasing scientific evidence, WPATH commissioned a new version of the Standards of Care, the SOC-8. Aim: The overall goal of SOC-8 is to provide health care professionals (HCPs) with clinical guidance to assist TGD people in accessing safe and effective pathways to achieving lasting personal comfort with their gendered selves with the aim of optimizing their overall physical health, psychological well-being, and self-fulfillment. Methods: The SOC-8 is based on the best available science and expert professional consensus in transgender health. International professionals and stakeholders were selected to serve on the SOC-8 committee. Recommendation statements were developed based on data derived from independent systematic literature reviews, where available, background reviews and expert opinions. Grading of recommendations was based on the available evidence supporting interventions, a discussion of risks and harms, as well as the feasibility and acceptability within different contexts and country settings. Results: A total of 18 chapters were developed as part of the SOC-8. They contain recommendations for health care professionals who provide care and treatment for TGD people. Each of the recommendations is followed by explanatory text with relevant references. General areas related to transgender health are covered in the chapters Terminology, Global Applicability, Population Estimates, and Education. The chapters developed for the diverse population of TGD people include Assessment of Adults, Adolescents, Children, Nonbinary, Eunuchs, and Intersex Individuals, and people living in Institutional Environments. Finally, the chapters related to gender-affirming treatment are Hormone Therapy, Surgery and Postoperative Care, Voice and Communication, Primary Care, Reproductive Health, Sexual Health, and Mental Health. Conclusions: The SOC-8 guidelines are intended to be flexible to meet the diverse health care needs of TGD people globally. While adaptable, they offer standards for promoting optimal health care and guidance for the treatment of people experiencing gender incongruence. As in all previous versions of the SOC, the criteria set forth in this document for gender-affirming medical interventions are clinical guidelines; individual health care professionals and programs may modify these in consultation with the TGD person. ispartof: INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH vol:23 issue:Suppl 1 pages:S1-S258 ispartof: location:United States status: published
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- 2022
11. Spectral modeling of scintillator for the NEMO-3 and SuperNEMO detectors
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A.S., Bongrand, M., Broudin-Bay, G., Brudanin, V.B., Caffrey, A.J., Cebrián, S., Chapon, A., Chauveau, E., Dafni, Th., Daraktchieva, Z., Díaz, J., Durand, D., Egorov, V.G., Evans, J.J., Fatemi-Ghomi, N., Flack, R., Basharina-Freshville, A., Fushimi, K.-I., Garrido, X., Gómez, H., Guillon, B., Holin, A., Holý, K., Horkley, J.J., Hubert, Ph., Hugon, C., Iguaz, F.J., Irastorza, I.G., Ishihara, N., Jackson, C.M., Jullian, S., Kanamaru, S., Kauer, M., Kochetov, O.I., Konovalov, S.I., Kovalenko, V.E., Lalanne, D., Lang, K., Lemière, Y., Lutter, G., Luzón, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Monrabal, F., Nachab, A., Nasteva, I., Nemchenok, I.B., Nguyen, C.H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R.B., Perrot, F., Piquemal, F., Povinec, P.P., Richards, B., Ricol, J.S., Riddle, C.L., Rodriguez, A., Saakyan, R., Sarazin, X., Sedgbeer, J.K., Serra, L., Simard, L., Šimkovic, F., Shitov, Yu.A., Smolnikov, A.A., Söldner-Rembold, S., Štekl, I., Sugaya, Y., Sutton, C.S., Szklarz, G., Tamagawa, Y., Thomas, J., Thompson, R., Timkin, V.V., Tretyak, V.I., Tretyak, Vl.I., Umatov, V.I., Vála, L., Vanyushin, I.A., Vasiliev, R., Vorobel, V., Vylov, Ts., Waters, D., Yahlali, N., and Žukauskas, A.
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- 2011
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12. Measurement of the two neutrino double beta decay half-life of Zr-96 with the NEMO-3 detector
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A.S., Basharina-Freshville, A., Bongrand, M., Broudin-Bay, G., Brudanin, V., Caffrey, A.J., Chapon, A., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V., Fatemi-Ghomi, N., Flack, R., Guillon, B., Hubert, Ph., Jullian, S., Kauer, M., King, S., Klimenko, A., Kochetov, O., Konovalov, S.I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Lang, K., Lemière, Y., Longuemare, C., Lutter, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I., Nguyen, C.H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R.B., Perrot, F., Piquemal, F., Reyss, J.L., Ricol, J.S., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Šimkovic, F., Smolnikov, A., Snow, S., Söldner-Rembold, S., Štekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V.I., Umatov, V., Vála, L., Vanyushin, I., Vasiliev, V., Vorobel, V., and Vylov, Ts.
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- 2010
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13. Measurement of the background in the NEMO 3 double beta decay experiment
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A.S., Bongrand, M., Broudin-Bay, G., Brudanin, V.B., Caffrey, A.J., Chapon, A., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V.G., Fatemi-Ghomi, N., Flack, R., Freshville, A., Guillon, B., Hubert, Ph., Jullian, S., Kauer, M., King, S., Kochetov, O.I., Konovalov, S.I., Kovalenko, V.E., Lalanne, D., Lang, K., Lemière, Y., Lutter, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I.B., Nguyen, C.H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R.B., Perrot, F., Piquemal, F., Reyss, J.L., Ricol, J.S., Saakyan, R., Sarazin, X., Simard, L., Shitov, Yu.A., Smolnikov, A.A., Snow, S., Söldner-Rembold, S., Štekl, I., Sutton, C.S., Szklarz, G., Thomas, J., Timkin, V.V., Tretyak, V.I., Tretyak, Vl.I., Umatov, V.I., Vála, L., Vanyushin, I.A., Vasiliev, V.A., Vorobel, V., and Vylov, Ts.
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- 2009
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14. Results of NEMO 3 and Status of SuperNEMO
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Vála, L.
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- 2009
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15. Recent Results of the NEMO 3 Experiment
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Vála, L.
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- 2007
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16. Measurement of double beta decay of 100Mo to excited states in the NEMO 3 experiment
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Arnold, R., Augier, C., Baker, J., Barabash, A.S., Bongrand, M., Broudin, G., Brudanin, V., Caffrey, A.J., Egorov, V., Etienvre, A.I., Fatemi-Ghomi, N., Hubert, F., Hubert, Ph., Jerie, J., Jollet, C., Jullian, S., King, S., Kochetov, O., Konovalov, S.I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Leccia, F., Lemière, Y., Longuemare, C., Lutter, G., Marquet, Ch., Mauger, F., Nachab, A., Ohsumi, H., Perrot, F., Piquemal, F., Reyss, J.L., Ricol, J.S., Saakyan, R., Sarazin, X., Simard, L., Šimkovic, F., Shitov, Yu., Smolnikov, A., Söldner-Rembold, S., Štekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V., Umatov, V., Vála, L., Vanyushin, I., Vasiliev, V., Vorobel, V., and Vylov, Ts.
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- 2007
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17. Electroencephalographic status epilepticus is common in critically ill children undergoing continuous EEG monitoring
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Fung, F., Jacobwitz, M., Vala, L., Parikh, D., Donnelly, M., Fitzgerald, M., Massey, S., Topjian, A., and Abend, N.
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- 2019
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18. Study of 2β-decay of 100Mo and 82Se using the NEMO3 detector
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Arnold, R., Augier, C., Baker, J., Barabash, A., Brudanin, V., Caffrey, A. J., Egorov, V., Guyonnet, J. L., Hubert, F., Hubert, Ph., Jenner, L., Jollet, C., Jullian, S., Klimenko, A., Kochetov, O., Konovalov, S., Kovalenko, V., Lalanne, D., Leccia, F., Linck, I., Longuemare, C., Lutter, G., Marquet, Ch., Mauger, F., Nicholson, H. W., Ohsumi, H., Piquemal, F., Reyss, J. -L., Saakyan, R., Sarazin, X., Scheibling, F., Shitov, Yu., Simard, L., Smolnikov, A., Stekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Timkin, V., Thomas, J., Tretyak, V., Umatov, V., Vala, L., Vanyushin, I., Vasiliev, S., Vasilyev, V., Vorobel, V., and Vylov, Ts.
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- 2004
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19. Limits on different majoron decay modes of 100Mo and 82Se for neutrinoless double beta decays in the NEMO-3 experiment
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Arnold, R., Augier, C., Baker, J., Barabash, A.S., Brudanin, V., Caffrey, A.J., Caurier, E., Egorov, V., Errahmane, K., Etienvre, A.I., Guyonnet, J.L., Hubert, F., Hubert, Ph., Jollet, C., Jullian, S., King, S., Kochetov, O., Konovalov, S., Kovalenko, V., Lalanne, D., Leccia, F., Longuemare, C., Lutter, G., Marquet, Ch., Mauger, F., Nowacki, F., Ohsumi, H., Piquemal, F., Reyss, J.-L., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Šimkovic, F., Smolnikov, A., Štekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Timkin, V., Thomas, J., Tretyak, V., Umatov, V., Vála, L., Vanyushin, I., Vasilyev, V., Vorobel, V., and Vylov, Ts.
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- 2006
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20. Technical design and performance of the NEMO 3 detector
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Arnold, R., Augier, C., Bakalyarov, A.M., Baker, J., Barabash, A., Bernaudin, Ph., Bouchel, M., Brudanin, V., Caffrey, A.J., Cailleret, J., Campagne, J.E., Dassié, D., Egorov, V., Errahmane, K., Etienvre, A.I., Filipova, T., Forget, J., Guiral, A., Guiral, P., Guyonnet, J.L., Hubert, F., Hubert, Ph., Humbert, B., Igersheim, R., Imbert, P., Jollet, C., Jullian, S., Kisel, I., Klimenko, A., Kochetov, O., Kovalenko, V., Lalanne, D., Laplanche, F., Lavigne, B., Lebedev, V.I., Lebris, J., Leccia, F., Leconte, A., Linck, I., Longuemare, C., Marquet, Ch., Martin-Chassard, G., Mauger, F., Nemchenok, I., Nikolic-Audit, I., Ohsumi, H., Pécourt, S., Piquemal, F., Reyss, J.L., Richard, A., Riddle, C.L., Rypko, J., Sarazin, X., Simard, L., Scheibling, F., Shitov, Yu., Smolnikov, A., Štekl, I., Sutton, C.S., Szklarz, G., Timkin, V., Tretyak, V., Umatov, V., Vála, L., Vanushin, I., Vasiliev, S., Vasilyev, V., Vorobel, V., Vylov, Ts., Wurtz, J., and Zhukov, S.V.
- Published
- 2005
- Full Text
- View/download PDF
21. Status of the EU DEMO breeding blanket manufacturing RetD activities
- Author
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Forest, L., Aktaa, J., Boccaccini, L., Emmerich, T., Eugen-Ghidersa, B., Fondant, G., Froio, A., Li Puma, A., Namburi, H., Neuberger, H., Rey, J., Savoldi, L., Sornin, D., Vala, L., CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Karlsruhe Institute of Technology (KIT), Service d'Etudes Mécaniques et Thermiques (SEMT), Département de Modélisation des Systèmes et Structures (DM2S), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Nature and Environment Management Operators (NEMO), Centrum výzkumu Řež, Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), and European Project: 633053,H2020,EURATOM-Adhoc-2014-20,EUROfusion(2014)
- Subjects
manufacturing ,Breeding Blanket ,[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] ,EUROFER ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,DEMO - Abstract
International audience; The realization of a DEMOnstration Fusion Power Reactor (DEMO) to follow ITER, with the capability of generating several hundred MW of net electricity and operating with a closed fuel-cycle by 2050, is viewed by Europe as the remaining crucial step towards the exploitation of fusion power. The EUROfusion Consortium, in the frame of the European Horizon 2020 Program, has been assessing four different breeding blanket concepts in view of selecting the reference one for DEMO. This paper describes technologies and manufacturing scenarios developed and envisaged for the four blanket concepts, including nuclear conventional assembly processes as GTAW, electron beam and laser welding, Hot Isostatic Pressing (HIP), and also more advanced (from the nuclear standpoint) technologies as additive manufacturing techniques. These developments are performed in conformity with international standards and/or design/manufacturing codes. Topics as the metallurgical weldability of EUROFER steel and the associated risks or the development of appropriate filler wire are discussed. The development of protective W-coating layers on First Wall, with Functionally Graded (FG) interlayer as compliance layer between W and EUROFER substrate, realized by Vacuum Plasma Spraying method, is also propounded. First layer systems showed promising layer adhesion, thermal fatigue and thermal shock properties. He-cooled mock-ups, representative of the First Wall with FG W/EUROFER coating are developed for test campaigns in the HELOKA facility under relevant heat fluxes.First elements of Double Walled Tubes (DWT) manufacturing and tube/plate assembly for the water cooled concept are given, comprising test campaign aiming at assessing their behaviour under corrosion. Eventually, further development strategies are suggested.
- Published
- 2018
22. Gamma-ray flux in the Fréjus underground laboratory measured with NaI detector
- Author
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Ohsumi, H., Gurriarán, R., Hubert, Ph., Arnold, R., Augier, C., Baker, J., Barabash, A., Bing, O., Brudanin, V., Caffrey, A.J., Campagne, J.E., Caurier, E., Dassie, D., Egorov, V., Errahmane, K., Eschbach, R., Filipova, T., Guyonnet, J.L., Hubert, F., Jollet, C., Jullian, S., Kisel, I., Klimenko, A., Kochetov, O., Kornoukhov, V.N., Kovalenko, V., Kuzichev, V., Lalanne, D., Laplanche, F., Leccia, F., Linck, I., Longuemare, C., Marquet, Ch., Mauger, F., Nicholson, H.W., Nikolic-Audit, I., Piquemal, F., Reyss, J.L., Sarazin, X., Smolnikov, A., Štekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Timkin, V., Tretyak, V., Umatov, V., Vála, L., Vanyushin, I., Vareille, A., Vasiliev, V., Vasiliev, S., Vorobel, V., and Vylov, Ts.
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- 2002
- Full Text
- View/download PDF
23. ADRIANA Project: identification of research infrastructures for the SFR, within the frame of European Industrial for substainable Nuclear Fission
- Author
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Latge, O., Gastaldi, O., Vala, L., Gerbeth, G., Homann, C., Benoir, P., Papin, J., Girault, N., Roelofs, F., Buceniecks, I., Paffumi, E., and Ciampichetti, A.
- Subjects
SFR ,experimental facilities ,ADRIANA ,sodium - Abstract
Fast neutron reactors have a large potential as sustainable energy source. In particular, Sodium Fast Reactors (SFR) with al closed fuel cycle and potential for minor actinide burning may allow minimization of volume and heat load of high level waste and provide improved use of natural resources (as compared to only 1 % energy recovery in the current once-through fuel cycle, with Thermal Reactors, such as EPR).
- Published
- 2012
24. Finalization of the conceptual design of the auxiliary circuits for the European test blanket systems
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Aiello, A., primary, Ghidersa, B.E., additional, Utili, M., additional, Vala, L., additional, Ilkei, T., additional, Di Gironimo, G., additional, Mozzillo, R., additional, Tarallo, A., additional, Ricapito, I., additional, and Calderoni, P., additional
- Published
- 2015
- Full Text
- View/download PDF
25. Measurement of the double-β decay half-life of 150Nd and search for neutrinoless decay modes with the NEMO-3 detector
- Author
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A.S., Basharina-Freshville, A., Bongrand, M., Broudin, G., Brudanin, V., Caffrey, A.J., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V., Fatemi-Ghomi, N., Flack, R., Hubert, Ph., Jerie, J., Jullian, Sophie, Kauer, M., King, S., Klimenko, A., Kochetov, O., Konovalov, S.I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Lang, K., Lemière, Y., Longuemare, C., Lutter, G., Marquet, Ch., Martin-Albo, J., Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I., Nova, F., Novella, P., Ohsumi, H., Pahlka, R.B., Perrot, F., Piquemal, F., Reyss, J.L., Ricol, J.S., Saakyan, R., Sarazin, X., Simard, L., Simkovic, F., Shitov, Yu., Smolnikov, A., Snow, S., Soldner-Rembold, S., Stekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V., Umatov, V., Vala, L., Vanyushin, I., Vasiliev, V., Vorobel, V., Vylov, Ts., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Océan et Interfaces (OCEANIS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), NEMO, Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
- Subjects
23.40.−s, 14.60.Pq, 21.10.Tg, 27.70.+q ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] - Abstract
The half-life for double-β decay of 150Nd has been measured by the NEMO-3 experiment at the Modane Underground Laboratory. Using 924.7 days of data recorded with 36.55 g of 150Nd, we measured the half-life for 2νββ decay to be T 2ν 1/2 = (9.11+0.25 −0.22(stat.) ± 0.63(syst.)) × 1018 yr. The observed limit on the half-life for neutrinoless double-β decay is found to be T 0ν 1/2 > 1.8 × 1022 yr at 90% confidence level. This translates into a limit on the effective Majorana neutrino mass of (mν ) < 4.0-6.3 eV if the nuclear deformation is taken into account. We also set limits on models involving Majoron emission, right-handed currents, and transitions to excited states.
- Published
- 2009
26. Measurement of the two neutrino double beta decay half-life of Zr-96 and search for associated neutrinoless processes with the NEMO-3 detector
- Author
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A. S., Basharina-Freshville, A., Bongrand, M., Broudin-Bay, G., Brudanin, V., Caffrey, A. J., Chapon, A., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V., Fatemi-Ghomi, N., Flack, R., Guillon, B., Hubert, Ph., Jullian, Sophie, Kauer, M., King, S., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lamhamdi, T., Lang, K., Lemière, Y., Longuemare, C., Lutter, G., Mamedov, F., Marquet, Ch., Martin-Albo, J., Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I., Nguyen, C. H., Nova, F., Novella, P., Ohsumi, H., Pahlka, R. B., Perrot, F., Piquemal, F., Reyss, J. L., Ricol, J. S., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Simkovic, F., Smolnikov, A., Snow, S., Soldner-Rembold, S., Stekl, I., Sutton, C. S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V. I., Umatov, V., Vala, L., Vanyushin, I., Vasiliev, V., Vorobel, V., Vylov, Ts., Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), NEMO, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] - Abstract
Submittted to Nucl.Phys.A (11 pages, 11 figures); Using 1221 days of data from the NEMO-3 detector, the measurement of Zr-96 2vbb decay half-life is [2.35 +/- 0.14(stat) +/- 0.19(syst)] x 10^19 yr. Different characteristics of the final state electrons have been studied, such as the energy sum, individual electron energy, and angular distribution. The 2v nuclear matrix element is extracted using the measured 2vbb half-life and is 0.049 +/- 0.003. A 90% CL limit is set on the 0vbb decay half-life of > 9.2 x 10^21 yr corresponding to a limit on the effective Majorana neutrino mass < 7.2 - 19.5 eV. Limits on other mechanisms of 0vbb decay have also been set.
- Published
- 2009
27. Measurement of the double-beta decay half-life on Nd-150 and search for neutrinoless decay modes with the NEMO-3 detector
- Author
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Argyriades, J., Arnold, R., Augier, C., Baker, J., Barabash, A. S., Basharina-Freshville, A., Bongrand, M., Broudin, G., Caffrey, A. J., Chauveau, E., Daraktchieva, Z., Durand, D., Egorov, V. G., Fatemi-Ghomi, N., Flack, Robert L., Hubert, P., Jerie, J., Jullian, S., Kauer, M., King, S., Klimenko, A., Kochetov, O. I., Konovalov, S. I., Kovalenko, V. E., Lalanne, D., Lamhamdi, T., Lang, K., Lemiere, Y., Longuemare, C., Lutter, G., Marquet, C., Martín-Albo, Justo, Mauger, F., Nachab, A., Nasteva, I., Nemchenok, I. B., Nova, F., Novella, Pau, Oshumi, H., Pahlka, R. B., Perrot, F., Piquemal, F., Reyss, J. L., Ricol, J. S., Saakyan, R., Sarazin, X., Simard, L., Simkovic, F., Shitov, Y. A., Smolnikov, A., Snow, S., Soldner-Rembold, S., Stekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Thomas, J., Timkin, V. V., Tretyak, V. I., Umatov, V., Vala, L., Vanyushin, I. A., Vasiliev, V. A., Vorobel, V., Vylov, T., and NEMO Collaboration
- Abstract
The half-life for double-beta decay of Nd-150 has been measured by the NEMO-3 experiment at the Modane Underground Laboratory. Using 924.7 days of data recorded with 36.55 g of Nd-150, we measured the half-life for 2 nu beta beta decay to be T-1/2(2 nu) = (9.11(-0.22)(+0.25)(stat.) +/- 0.63(syst.)) x 10(18) yr. The observed limit on the half-life for neutrinoless double-beta decay is found to be T-1/2(0 nu) > 1.8 x 10(22) yr at 90% confidence level. This translates into a limit on the effective Majorana neutrino mass of < m(nu)> < 4.0-6.3 eV if the nuclear deformation is taken into account. We also set limits on models involving Majoron emission, right-handed currents, and transitions to excited states., We thank the staff at the Modane Underground Laboratory for its technical assistance in running the experiment,Vladimir Tretyak for providing the Monte Carlo event generator, and Wade Fisher for helping with the limit-setting program. We acknowledge support by the grants agencies of the Czech Republic, RFBR (Russia), STFC (UK), and NSF (USA).
- Published
- 2009
28. Technical performance of the NEMO 3 detector 'Advantages and limitations'
- Author
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Augier, C., Arnold, R., Baker, J., Barabash, A., Broudin, G., Brudanin, V., Caffrey, A.J., Egorov, V., Errahmane, K., Etienvre, A.I., Guyonnet, J.L., Hubert, F., Hubert, P., Jollet, C., Jullian, Sophie, Kochetov, O., Kovalenko, V., Konovalov, S., Lalanne, D., Lang, K., Leccia, F., Longuemare, C., Lutter, G., Marquet, Ch., Mauger, F., Ohsumi, H., Piquemal, F., Reyss, J.L., Saakyan, R., Sarazin, X., Simard, L., Shitov, Yu., Smolnikov, A., Stekl, I., Sutton, C.S., Szklarz, G., Thomas, J., Timkin, V., Tretyak, V., Umatov, V., Vala, L., Vanushin, I., Vasilyev, V., Vorobel, V., Vylov, Ts., Starita, Sabine, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), NEMO, Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
- Subjects
[PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] - Abstract
Corinne AUGIER for the NEMO Collaboration; The development of the NEMO 3 detector, which is now running in the Fréjus Underground Laboratory (L.S.M. Laboratoire Souterrain de Modane), was begun more than ten years ago. The NEMO 3 detector uses a tracking-calorimeter technique in order to investigate double beta decay processes for several isotopes. The technical description of the detector is followed by the presentation of its performance, including the methods used by the collaboration to address the radon problem.
- Published
- 2005
29. Study of 2$\beta$-decay of $^{100}$Mo and $^{82}$Se using the NEMO3 detector
- Author
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Arnold, R., Augier, C., Baker, J., Barabash, A., Brudanin, V., Caffrey, A.J., Egorov, V., Guyonnet, J.L., Hubert, F., Hubert, P., Jenner, L., Jollet, C., Jullian, Sophie, Klimenko, A., Kochetov, O., Konovalov, S., Kovalenko, V., Lalanne, D., Leccia, F., Linck, I., Longuemare, C., Lutter, G., Marquet, Ch., Mauger, F., Nicholson, H.W., Ohsumi, H., Piquemal, F., Reyss, J.-L., Saakyan, R., Sarazin, X., Scheibling, F., Shitov, Yu., Simard, L., Smolnikov, A., Stekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Timkin, V., Thomas, J., Tretyak, V., Umatov, V., Vala, L., Vanyushin, I., Vasiliev, S., Vasilyev, V., Vorobel, V., Vylov, Ts., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), NEMO, Heyd, Yvette, Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
- Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex] ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,14.80.Mz ,23.40.-s - Published
- 2004
30. Status report on the double-beta-decay experiment nemo3
- Author
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Vala, L., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), NEMO, and Kerec, Hélène
- Subjects
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,[PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] - Published
- 2001
31. Influence of neutrons and $\gamma$-rays in the Frejus underground laboratory on the NEMO experiment
- Author
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Marquet, Catherine, Piquemal, F., Arnold, R., Augier, C., Baker, J., Barabash, A., Bing, O., Blum, D., Brudanin, V., Caffrey, J., Campagne, Jean-Eric, Caurier, E., Dassie, D., Egorov, V., Errahmane, K., Eschbach, R., Filipova, T., Guyonnet, J.L., Jollet, C., Jullian, Sophie, Hubert, F., Hubert, P., Kisel, I., Kochetov, O., Kornoukhov, V.N., Kovalenko, V., Lalanne, D., Laplanche, D., Leccia, F., Linck, I., Longuemare, C., Mauger, F., Nicholson, H.W., Nikolic-Audit, I., Ohsumi, H., Pilugin, I., Reyss, J.L., Sarazin, X., Scheibling, F., Stekl, I., Suhonen, J., Sutton, C.S., Szklarz, G., Timkin, V., Tretyak, V., Umatov, V., Vala, L., Vanyushin, I., Vareille, A., Vorobel, V., Vylov, T., Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), NEMO, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
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[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] - Published
- 2001
32. The mechanism of layer formation from charged powder particles
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Vala, L., primary and Chvatal, P., additional
- Published
- 1989
- Full Text
- View/download PDF
33. Development of anti-permeation and corrosion barrier coatings for the WCLL breeding blanket of the European DEMO
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M. Vanazzi, Alessandro Venturini, Sebastiano Cataldo, T. Hernández, A. Moroño, Julia Lorenz, Fabio Di Fonzo, Klara Kunzova, D. Martelli, Ladislav Vála, Mariano Tarantino, Gandolfo Alessandro Spagnuolo, Carsten Schroer, Serena Bassini, Michal Kordač, Boris Padino, Marco Utili, Utili, M., Bassini, S., Cataldo, S., Di Fonzo, F., Kordac, M., Hernandez, T., Kunzova, K., Lorenz, J., Martelli, D., Padino, B., Morono, A., Tarantino, M., Schroer, C., Spagnuolo, G. A., Vala, L., Vanazzi, M., and Venturini, A.
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Materials science ,Blanket ,engineering.material ,01 natural sciences ,PbLi ,010305 fluids & plasmas ,Corrosion ,Atomic layer deposition ,Breeder (animal) ,Coating ,0103 physical sciences ,Tritium permeation ,General Materials Science ,010306 general physics ,DEMO ,Engineering & allied operations ,Alumina coating ,Civil and Structural Engineering ,Eutectic system ,Mechanical Engineering ,Metallurgy ,Permeation ,Coolant ,Nuclear Energy and Engineering ,engineering ,Irradiation ,ddc:620 - Abstract
Tritium permeation from breeder material to the Water Coolant System (WCS) in Water Cooled Lithium Lead (WCLL) Breeding Blanket (BB) is one of the technological issues to be solved in the design of the European DEMO. Since the tritium extraction from the Water Coolant System is more challenging and expensive than the extraction from the eutectic alloy PbLi, it is mandatory to use of a protective coating on the blanket wall to minimize the permeation rate. Moreover, a protective coating can prevent the corrosion of EUROFER steel by the action of PbLi. alumina-based coatings are considered as reference for barriers thanks to their good chemical compatibility with the PbLi alloy and their capability to reduce permeation. Three coating technologies were selected in the frame of the EUROfusion project: electrochemical ECX (chemical deposition) process, Pulsed Laser Deposition (PLD) and Atomic Layer Deposition (ALD) coating. The coatings were developed and optimized in order to satisfy the design requirements of good mechanical compatibility with steels, strong adhesion, corrosion compatibility in PbLi at relevant BB design conditions and a Permeation Reduction Factor at least of 200 under neutron irradiation. The present paper aims to describe the status of the technologies and the main results obtained. The final objectives of the R&D activities are to demonstrate the applicability of the coating to WCLL BB and therefore the scale-up of the technologies from laboratory scale to the BB scale.
- Published
- 2021
34. Characterization of aluminum-based coatings after short term exposure during irradiation campaign in the LVR-15 fission reactor
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Marco Utili, Alica Fedoriková, Boris Paladino, Klara Kunzova, Carsten Schroer, Michal Kordač, Fabio Di Fonzo, Jaroslav Kekrt, Julia Lorenz, Ladislav Vála, Roman Petráš, Petras, R., Kunzova, K., Fedorikova, A., Kekrt, J., Kordac, M., Di Fonzo, F., Paladino, B., Schroer, C., Lorenz, J., Utili, M., and Vala, L.
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Materials science ,chemistry.chemical_element ,engineering.material ,Blanket ,01 natural sciences ,010305 fluids & plasmas ,Pulsed laser deposition ,Cross-section analysis ,Coating ,Aluminium ,0103 physical sciences ,Eurofer97 ,Deposition (phase transition) ,General Materials Science ,Irradiation ,Aluminum-based coating ,010306 general physics ,Engineering & allied operations ,Civil and Structural Engineering ,Pb-16Li ,Mechanical Engineering ,PLD techniques ,Metallurgy ,Fusion power ,ECX techniques ,Nuclear Energy and Engineering ,chemistry ,engineering ,Tritium ,ddc:620 - Abstract
Protective aluminum-based coatings represent a promising anti-permeation and anti-corrosion barrier for breeding blanket systems developed for European DEMO fusion reactor. Following the prior in-depth characterizations, selected coating candidates were subjected to a combined test consisting of contact with liquid Pb-16Li, its repeated in-situ solidification and re-melting, tritium permeation during gamma and neutron irradiation in the LVR-15 fission reactor. During the sample exposure in the reactor, the temperature of Pb-16Li was between 300 and 425 °C. The irradiation damage averaged over the sample volume estimated by FISPACT code was limited to 0.037 dpa. This article presents post-irradiation characterization of cylindrical Eurofer97 samples coated by electro-chemical X-metal deposition from ionic liquid (ECX) and pulsed laser deposition (PLD) techniques. The coating damage relative to a reference uncoated sample is discussed.
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- 2021
35. Status of Pb-16Li technologies for European DEMO fusion reactor
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Daniele Martelli, Lorenzo Virgilio Boccaccini, Serena Bassini, Tomáš Melichar, A. Del Nevo, Ladislav Vála, Chiara Mistrangelo, T. Hernández, Michal Kordač, Fabio Cismondi, Marica Eboli, E. Mas de les Valls, A. Tincani, Marco Utili, F. DiFonzo, Sven-Erik Wulf, Mariano Tarantino, Leo Bühler, Utili, M., Bassini, S., Boccaccini, L., Buhler, L., Cismondi, F., Del Nevo, A., Eboli, M., Difonzo, F., Hernandez, T., Wulf, S., Kordac, M., Martelli, D., De les Valls, E. M., Melichar, T., Mistrangelo, C., Tarantino, M., Tincani, A., and Vala, L.
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Tokamak ,Nuclear engineering ,chemistry.chemical_element ,Blanket ,BB ,7. Clean energy ,01 natural sciences ,010305 fluids & plasmas ,law.invention ,Breeder (animal) ,law ,0103 physical sciences ,General Materials Science ,010306 general physics ,Civil and Structural Engineering ,Pb-16Li ,Mechanical Engineering ,Water cooled ,Fusion power ,Coolant ,WCLL ,DCLL ,HCLL ,Loop ,Nuclear Energy and Engineering ,chemistry ,Lithium - Abstract
Three of the four breeder blanket concepts currently under investigation for the European DEMO Reactor use the eutectic Pb-16Li as breeder material. Those are the Helium Cooled Lithium Lead (HCLL), Water Cooled Lithium Lead (WCLL) and Dual Coolant Lithium Lead (DCLL) blankets. Moreover, the WCLL is one of the blanket concepts that will be qualified in the ITER reactor, therefore the development and design of lead lithium loops and auxiliary systems is essential. The main functional requirements that Pb-16Li systems have to fulfill are: • to circulate the liquid Pb-16Li through the blanket and ancillaries; • to extract the tritium produced inside the breeder modules from Pb-16Li; • to control Pb-16Li chemistry and to remove accumulated impurities; The present work aims to describe the activities performed in order to achieve the following objectives: i) design and integration of the Pb-16Li loops inside the tokamak building, ii) development and characterization of antipermeation and anticorrosion coatings on structures in contact with Pb-16Li, iii) development and design of an activation products removal system, iv) design of a chemistry control system for Pb-16Li loops, v) performing magnetohydrodynamic analyses taking into account the impact on heat transfer and tritium transport in breeding blankets and performing safety analyses of water/Pb-16Li interaction due to LOCA inside the WCLL blanket.
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- 2019
36. Progress in EU Breeding Blanket design and integration
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I. Moscato, Ladislav Vála, Yves Poitevin, T.R. Barrett, F. Maviglia, Andrea Tarallo, G. Veres, Francisco A. Hernández, Giacomo Aiello, David Rapisarda, Marco Utili, Roberto Zanino, L. Barucca, C. Gliss, G. Di Gironimo, Rocco Mozzillo, C. Bachmann, Th. Franke, A. Loving, P.A. Di Maio, Fabio Cismondi, J. Keep, Emanuela Martelli, Sergio Ciattaglia, Evaldas Bubelis, E. Diegele, J. Aubert, G. Federici, M. Gasparotto, A. Del Nevo, Lorenzo Virgilio Boccaccini, Laura Savoldi, Antonio Froio, Iván Fernández-Berceruelo, Cismondi, F., Boccaccini, L. V., Aiello, G., Aubert, J., Bachmann, C., Barrett, T., Barucca, L., Bubelis, E., Ciattaglia, S., Del Nevo, A., Diegele, E., Gasparotto, M., Di Gironimo, G., Di Maio, P. A., Hernandez, F., Federici, G., Fernández-Berceruelo, I., Franke, T., Froio, A., Gliss, C., Keep, J., Loving, A., Martelli, E., Maviglia, F., Moscato, I., Mozzillo, R., Poitevin, Y., Rapisarda, D., Savoldi, L., Tarallo, A., Utili, M., Vala, L., Veres, G., Zanino, R., Bureau de Conception Calculs et Réalisations (BCCR), Service d'Etudes Mécaniques et Thermiques (SEMT), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Modélisation des Systèmes et Structures (DM2S), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Boccaccini, L.V., and Di Maio, P.A.
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Computer science ,In-vessel and ex-vessel components ,Blanket ,Continuous design ,7. Clean energy ,01 natural sciences ,Balance of plan ,010305 fluids & plasmas ,[SPI]Engineering Sciences [physics] ,Balance of plant ,Breeding Blanket ,Civil and Structural Engineering ,Nuclear Energy and Engineering ,Materials Science (all) ,Mechanical Engineering ,0103 physical sciences ,General Materials Science ,010306 general physics ,Settore ING-IND/19 - Impianti Nucleari ,Frame (networking) ,Schedule (project management) ,tIn-vessel and ex-vessel components ,Electricity generation ,13. Climate action ,Interfacing ,Systems engineering ,Demonstration Plant ,In-vessel and ex-vessel component ,Design evolution - Abstract
In Europe (EU), in the frame of the EUROfusion consortium activities, four Breeding Blanket (BB) concepts are being developed with the aim of fulfilling the performances required by a near-term fusion power demonstration plant (DEMO) in terms of tritium self-sufficiency and electricity production. The four blanket options cover a wide range of technological possibilities, as water and helium are considered as possible coolants and solid ceramic breeder in combination with beryllium and PbLi as tritium breeder and neutron multipliers. The strategy for the BB selection and operation has to account for the challenging schedule of the EU DEMO, the ambitious operational requirements of the BBs and the still large development needed to have a BB qualified and licensed for operating in DEMO. In parallel to the continuous design efforts on the four blanket concepts, their integration in-vessel and ex-vessel has started. On the one hand it has become clear that despite the numerous systems to be integrated in-vessel the protection of the blanket first wall has to be addressed with highest priority. On the other hand the ex-vessel interfaces and the requirements imposed by the blanket to the primary heat transfer system and to the PbLi loop components have a considerable impact on the whole DEMO Plant layout. The aim of this paper is: to present the strategy for the DEMO BB down selection and BB operation in DEMO; to describe the status of the design evolution of the four EU BB concepts; to provide an overview of the challenges of the in-vessel and ex-vessel integration of the main systems interfacing the BBs and describe their design status.
- Published
- 2018
37. Finalization of the conceptual design of the auxiliary circuits for the European test blanket systems
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T. Ilkei, Bradut-Eugen Ghidersa, Ladislav Vála, Rocco Mozzillo, A. Aiello, Italo Ricapito, Marco Utili, Pattrick Calderoni, Andrea Tarallo, G. Di Gironimo, Utili, M., Aiello, A., Ghidersa, B. E., Vala, L., Ilkei, T., DI GIRONIMO, Giuseppe, Mozzillo, Rocco, Tarallo, Andrea, Ricapito, I., and Calderoni, P.
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Tritium extraction and management ,Iterative design ,Computer science ,Mechanical Engineering ,Nuclear engineering ,Breeding blanket ,Integration in ITER ,Blanket ,Finalization ,Coolant ,Breeder (animal) ,Nuclear Energy and Engineering ,Conceptual design ,Water cooling ,General Materials Science ,Civil and Structural Engineering ,Electronic circuit - Abstract
In view of the ITER conceptual design review, the design of the ancillary systems of the European test blanket systems presented in [1] has been updated and made consistent with the ITER requirements for the present design phase. Europe is developing two concepts of TBM, the helium cooled lithium lead (HCLL) and the helium cooled pebble bed (HCPB) one, having in common the cooling media, pressurized helium at 8 MPa [2]. TBS, namely helium cooling system (HCS), coolant purification system (CPS), lead lithium loop and tritium extraction/removal system (TES-TRS) have the purpose to cool down the TBM and to remove tritium to be driven to TEP from breeder and coolant. These systems are placed in port cell 16 (PC#16), chemical and volume control system (CVCS) area and tritium building. Starting from the pre-conceptual design developed in the past, more mature technical interfaces with the ITER facility have been consolidated and iterative design activities were performed to comply with design requirements/specifications requested by IO to conclude the conceptual design phase. In this paper the present status of design of the TBS is presented together with the preliminary integration in ITER areas. © 2015 Elsevier B.V.
- Published
- 2015
38. Systemic Lupus Erythematosus (SLE)-Associated Jaccoud's Arthropathy.
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Sanchez R, Vala L, Dhadhal R, Frontela O, and Aldrich J
- Abstract
Jaccoud's arthropathy (JA) is a chronic deforming arthropathy, initially linked to rheumatic fever, now more commonly associated with systemic lupus erythematosus (SLE). We report a case of a 27-year-old male presenting with a four-month history of joint pain in the bilateral hands and feet, accompanied by stiffness but no swelling, erythema, or fever. Physical examination revealed flexion deformities, ulnar deviation at the metacarpophalangeal joints, and hyperextension at the proximal interphalangeal joints, without tenderness. Laboratory findings showed elevated anti-double stranded DNA (anti-dsDNA) antibodies and positive antinuclear antibodies (ANA), and imaging confirmed non-erosive arthropathy. Diagnosed with SLE-associated JA, the patient was treated with prednisone, diclofenac, and hydroxychloroquine, leading to significant symptom improvement and decreased anti-dsDNA antibody levels. Even though non-erosive and non-deforming arthropathy is more commonly seen in SLE, timely identification of JA as a non-erosive but deforming arthritis is crucial in differentiating SLE from rheumatoid arthritis. This case underscores the need for comprehensive evaluation and tailored therapy in complex autoimmune conditions to prevent long-term joint damage and improve patient outcomes., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Sanchez et al.)
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- 2024
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39. Unveiling a Neurological Enigma: Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy (CADASIL) Presenting With Facial Palsy.
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Jain S, Sirekulam V, Kinthada S, Patel RB, Naik N, Jain S, Khan T, Gill H, Patel N, Nanjundappa A, Vala L, and Siripuram C
- Abstract
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an uncommon genetic disorder that affects small blood vessels in the brain. It leads to neurological symptoms, disability-adjusted life years, and difficult emotional and physical situations for patients and their families. As unusual brain symptoms appear, it becomes important to understand the different clinical manifestations of CADASIL. Our case report and review examine several cases to demonstrate different presentations and management strategies of CADASIL. A 52-year-old male with a family history of strokes at a young age from his father and paternal grandfather presented to a neurology clinic for left facial droop and drooling. Brain magnetic resonance imaging showed extensive periventricular and subcortical white matter disease, including the external capsule and subcortical white matter of the temporal lobe. Findings were suggestive of small vessel vasculopathy. A cerebral angiogram showed that all large extra- and intracranial vessels were patent without evidence of aneurysm formation. There was no obvious evidence of beading of the distal intracranial vessels. Cerebrospinal fluid studies were normal. The NOTCH3 mutation was sent to test for CADASIL, which came back positive. The patient was started on aspirin (81 mg) and atorvastatin (20 mg) daily. The patient was counseled on the possibility of having an ischemic or hemorrhagic stroke. Aspirin and atorvastatin were continued, a neuropsychological evaluation was ordered, and CADASIL genetic counseling and testing were offered to him and his children. Over several years, patients developed several strokes and seizures due to infarcts. He also developed intraparenchymal hemorrhage complicated by dysphagia, requiring a feeding tube. Due to his severe physical debility, he was discharged to a nursing home for rehabilitation, where he did not improve with therapy and remained bedbound. He was discharged and sent home with his family. CADASIL can present as a diagnostic challenge due to its common presentation with migraines, transient ischemic attacks, and strokes, with or without risk factors. This unique presentation of CADASIL with facial palsy highlights the importance of emerging atypical presentations and the need for a detailed history of neuroimaging, family history, and personal history of neurovascular events. By accurately diagnosing the condition, patients and families can be counseled on the disease course and genetics. Management requires a multidisciplinary approach with neurology, genetic counseling, physical therapy, psychology, and psychiatry if depression or anxiety is present, with the aim of improving the patient's quality of life., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Jain et al.)
- Published
- 2024
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- View/download PDF
40. Periodic Discharges in Critically Ill Children: Predictors and Outcome.
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Fung FW, Parikh DS, Massey SL, Fitzgerald MP, Vala L, Donnelly M, Jacobwitz M, Kessler SK, Xiao R, Topjian AA, and Abend NS
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- Humans, Female, Male, Child, Child, Preschool, Prospective Studies, Infant, Adolescent, Glasgow Outcome Scale, Prognosis, Critical Illness, Electroencephalography
- Abstract
Objectives: We aimed to identify clinical and EEG monitoring characteristics associated with generalized, lateralized, and bilateral-independent periodic discharges (GPDs, LPDs, and BIPDs) and to determine which patterns were associated with outcomes in critically ill children., Methods: We performed a prospective observational study of consecutive critically ill children undergoing continuous EEG monitoring, including standardized scoring of GPDs, LPDs, and BIPDs. We identified variables associated with GPDs, LPDs, and BIPDs and assessed whether each pattern was associated with hospital discharge outcomes including the Glasgow Outcome Scale-Extended Pediatric version (GOS-E-Peds), Pediatric Cerebral Performance Category (PCPC), and mortality., Results: PDs occurred in 7% (91/1,399) of subjects. Multivariable logistic regression indicated that patients with coma (odds ratio [OR], 3.45; 95% confidence interval [CI]: 1.55, 7.68) and abnormal EEG background category (OR, 6.85; 95% CI: 3.37, 13.94) were at increased risk for GPDs. GPDs were associated with mortality (OR, 3.34; 95% CI: 1.24, 9.02) but not unfavorable GOS-E-Peds (OR, 1.93; 95% CI: 0.88, 4.23) or PCPC (OR, 1.64; 95% CI: 0.75, 3.58). Patients with acute nonstructural encephalopathy did not experience LPDs, and LPDs were not associated with mortality or unfavorable outcomes. BIPDs were associated with mortality (OR, 3.68; 95% CI: 1.14, 11.92), unfavorable GOS-E-Peds (OR, 5.00; 95% CI: 1.39, 18.00), and unfavorable PCPC (OR, 5.96; 95% CI: 1.65, 21.46)., Significance: Patients with coma or more abnormal EEG background category had an increased risk for GPDs and BIPDs, and no patients with an acute nonstructural encephalopathy experienced LPDs. GPDs were associated with mortality and BIPDs were associated with mortality and unfavorable outcomes, but LPDs were not associated with unfavorable outcomes., (Copyright © 2022 by the American Clinical Neurophysiology Society.)
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- 2024
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41. Missing Renal Stone Diagnosis in Dementia Patients With Recurrent Urinary Tract Infections: A Case Report and Literature Review.
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Jain S, Patel RB, Vala L, Kinthada S, Patel N, Jain S, Khan T, Nanjundappa A, Sirekulam V, Naik N, Siripuram C, and Gill H
- Abstract
In older adults, diagnosing, treating, and preventing urinary tract infections (UTIs) can be challenging. This case is of an 82-year-old female of white descent, who was admitted to a post-acute care facility following hospitalization for delirium and a UTI. Hypoactive delirium may be the only clinical manifestation of recurrent UTI. Due to challenges in obtaining a history from this patient with dementia, she had to be admitted multiple times for sepsis. During her final hospitalization, a CT scan of the abdomen and pelvis was ordered, which revealed an obstructed kidney stone as the cause of her recurrent UTIs. Recurrent UTIs especially in patients with dementia should prompt further imaging to look for kidney stones. Factors like dehydration and poor oral intake are risk factors for kidney stones, which patients with dementia are susceptible to., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2024, Jain et al.)
- Published
- 2024
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42. Validation of a Model for Targeted EEG Monitoring Duration in Critically Ill Children.
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Fung FW, Fan J, Parikh DS, Vala L, Donnelly M, Jacobwitz M, Topjian AA, Xiao R, and Abend NS
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- Humans, Child, Electroencephalography, Seizures etiology, Risk Factors, Monitoring, Physiologic, Critical Illness, Brain Diseases complications
- Abstract
Purpose: Continuous EEG monitoring (CEEG) to identify electrographic seizures (ES) in critically ill children is resource intense. Targeted strategies could enhance implementation feasibility. We aimed to validate previously published findings regarding the optimal CEEG duration to identify ES in critically ill children., Methods: This was a prospective observational study of 1,399 consecutive critically ill children with encephalopathy. We validated the findings of a multistate survival model generated in a published cohort ( N = 719) in a new validation cohort ( N = 680). The model aimed to determine the CEEG duration at which there was <15%, <10%, <5%, or <2% risk of experiencing ES if CEEG were continued longer. The model included baseline clinical risk factors and emergent EEG risk factors., Results: A model aiming to determine the CEEG duration at which a patient had <10% risk of ES if CEEG were continued longer showed similar performance in the generation and validation cohorts. Patients without emergent EEG risk factors would undergo 7 hours of CEEG in both cohorts, whereas patients with emergent EEG risk factors would undergo 44 and 36 hours of CEEG in the generation and validation cohorts, respectively. The <10% risk of ES model would yield a 28% or 64% reduction in CEEG hours compared with guidelines recommending CEEG for 24 or 48 hours, respectively., Conclusions: This model enables implementation of a data-driven strategy that targets CEEG duration based on readily available clinical and EEG variables. This approach could identify most critically ill children experiencing ES while optimizing CEEG use., Competing Interests: N. S. Abend: Funding from NIH (NINDS) K02NS096058 and Wolfson Foundation for this study. Other funding from PCORI (to institution), UCB Pharma (to institution), Epilepsy Foundation (consulting), and Demos Publishing (royalties). The remaining authors have no funding or conflicts of interest to disclose., (Copyright © 2022 by the American Clinical Neurophysiology Society.)
- Published
- 2023
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43. Standards of Care for the Health of Transgender and Gender Diverse People, Version 8.
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Coleman E, Radix AE, Bouman WP, Brown GR, de Vries ALC, Deutsch MB, Ettner R, Fraser L, Goodman M, Green J, Hancock AB, Johnson TW, Karasic DH, Knudson GA, Leibowitz SF, Meyer-Bahlburg HFL, Monstrey SJ, Motmans J, Nahata L, Nieder TO, Reisner SL, Richards C, Schechter LS, Tangpricha V, Tishelman AC, Van Trotsenburg MAA, Winter S, Ducheny K, Adams NJ, Adrián TM, Allen LR, Azul D, Bagga H, Başar K, Bathory DS, Belinky JJ, Berg DR, Berli JU, Bluebond-Langner RO, Bouman MB, Bowers ML, Brassard PJ, Byrne J, Capitán L, Cargill CJ, Carswell JM, Chang SC, Chelvakumar G, Corneil T, Dalke KB, De Cuypere G, de Vries E, Den Heijer M, Devor AH, Dhejne C, D'Marco A, Edmiston EK, Edwards-Leeper L, Ehrbar R, Ehrensaft D, Eisfeld J, Elaut E, Erickson-Schroth L, Feldman JL, Fisher AD, Garcia MM, Gijs L, Green SE, Hall BP, Hardy TLD, Irwig MS, Jacobs LA, Janssen AC, Johnson K, Klink DT, Kreukels BPC, Kuper LE, Kvach EJ, Malouf MA, Massey R, Mazur T, McLachlan C, Morrison SD, Mosser SW, Neira PM, Nygren U, Oates JM, Obedin-Maliver J, Pagkalos G, Patton J, Phanuphak N, Rachlin K, Reed T, Rider GN, Ristori J, Robbins-Cherry S, Roberts SA, Rodriguez-Wallberg KA, Rosenthal SM, Sabir K, Safer JD, Scheim AI, Seal LJ, Sehoole TJ, Spencer K, St Amand C, Steensma TD, Strang JF, Taylor GB, Tilleman K, T'Sjoen GG, Vala LN, Van Mello NM, Veale JF, Vencill JA, Vincent B, Wesp LM, West MA, and Arcelus J
- Abstract
Background: Transgender healthcare is a rapidly evolving interdisciplinary field. In the last decade, there has been an unprecedented increase in the number and visibility of transgender and gender diverse (TGD) people seeking support and gender-affirming medical treatment in parallel with a significant rise in the scientific literature in this area. The World Professional Association for Transgender Health (WPATH) is an international, multidisciplinary, professional association whose mission is to promote evidence-based care, education, research, public policy, and respect in transgender health. One of the main functions of WPATH is to promote the highest standards of health care for TGD people through the Standards of Care (SOC). The SOC was initially developed in 1979 and the last version (SOC-7) was published in 2012. In view of the increasing scientific evidence, WPATH commissioned a new version of the Standards of Care, the SOC-8. Aim: The overall goal of SOC-8 is to provide health care professionals (HCPs) with clinical guidance to assist TGD people in accessing safe and effective pathways to achieving lasting personal comfort with their gendered selves with the aim of optimizing their overall physical health, psychological well-being, and self-fulfillment. Methods: The SOC-8 is based on the best available science and expert professional consensus in transgender health. International professionals and stakeholders were selected to serve on the SOC-8 committee. Recommendation statements were developed based on data derived from independent systematic literature reviews, where available, background reviews and expert opinions. Grading of recommendations was based on the available evidence supporting interventions, a discussion of risks and harms, as well as the feasibility and acceptability within different contexts and country settings. Results: A total of 18 chapters were developed as part of the SOC-8. They contain recommendations for health care professionals who provide care and treatment for TGD people. Each of the recommendations is followed by explanatory text with relevant references. General areas related to transgender health are covered in the chapters Terminology, Global Applicability, Population Estimates, and Education. The chapters developed for the diverse population of TGD people include Assessment of Adults, Adolescents, Children, Nonbinary, Eunuchs, and Intersex Individuals, and people living in Institutional Environments. Finally, the chapters related to gender-affirming treatment are Hormone Therapy, Surgery and Postoperative Care, Voice and Communication, Primary Care, Reproductive Health, Sexual Health, and Mental Health. Conclusions: The SOC-8 guidelines are intended to be flexible to meet the diverse health care needs of TGD people globally. While adaptable, they offer standards for promoting optimal health care and guidance for the treatment of people experiencing gender incongruence. As in all previous versions of the SOC, the criteria set forth in this document for gender-affirming medical interventions are clinical guidelines; individual health care professionals and programs may modify these in consultation with the TGD person., Competing Interests: Conflict of interests were reviewed as part of the selection process for committee members and at the end of the process before publication. No conflicts of interest were deemed significant or consequential., (© 2022 The Author(s). Published with license by Taylor & Francis Group, LLC.)
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- 2022
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44. Video Ambulatory EEG in Children: A Quality Improvement Study.
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DiGiovine MP, Massey SL, LaFalce D, Vala L, Allen-Napoli L, Banwell BL, and Abend NS
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- Child, Electroencephalography, Humans, Monitoring, Physiologic, Prospective Studies, Quality Improvement, Video Recording, Epilepsy diagnosis
- Abstract
Purpose: We implemented a video ambulatory EEG (VA-EEG) Program as an alternative to inpatient video EEG monitoring for some patients given potential benefits related to quicker access, greater convenience, and lower cost. To evaluate the newly initiated program, we performed a quality improvement study to assess whether VA-EEG yielded studies with interpretable EEG and video quality that generated clinically beneficial data., Methods: This was a single-center prospective quality improvement study. We surveyed ordering clinicians, electroencephalographers, and caregivers regarding consecutive children who underwent clinically indicated VA-EEG. The primary outcome was the percentage of VA-EEG studies in which the ordering clinician reported that the study had answered the question of interest., Results: We evaluated 74 consecutive children selected to undergo clinically indicated VA-EEG by their clinicians and caregivers. Ordering clinicians reported that 77% of studies answered the question of interest. Electroencephalographers reported that the quality of the EEG and video was excellent or adequate in 100% and 92% of patients, respectively. Additionally, 84% of caregivers reported preferring VA-EEG if EEG data were needed in the future., Conclusions: Video ambulatory EEG may be an effective diagnostic modality among children selected by clinicians and caregivers to undergo long-term EEG monitoring. Given it is effective as well as convenient, accessible, and lower cost than inpatient EEG monitoring, all of which align with our institution's quality goals, we intend to expand our VA-EEG Program., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2020 by the American Clinical Neurophysiology Society.)
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- 2022
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45. Periodic and rhythmic patterns in critically ill children: Incidence, interrater agreement, and seizures.
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Fung FW, Parikh DS, Massey SL, Fitzgerald MP, Vala L, Donnelly M, Jacobwitz M, Kessler SK, Topjian AA, and Abend NS
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- Child, Humans, Incidence, Monitoring, Physiologic, Seizures diagnosis, Seizures epidemiology, Critical Illness epidemiology, Electroencephalography
- Abstract
Objectives: We aimed to determine the incidence of periodic and rhythmic patterns (PRP), assess the interrater agreement between electroencephalographers scoring PRP using standardized terminology, and analyze associations between PRP and electrographic seizures (ES) in critically ill children., Methods: This was a prospective observational study of consecutive critically ill children undergoing continuous electroencephalographic monitoring (CEEG). PRP were identified by one electroencephalographer, and then two pediatric electroencephalographers independently scored the first 1-h epoch that contained PRP using standardized terminology. We determined the incidence of PRPs, evaluated interrater agreement between electroencephalographers scoring PRP, and evaluated associations between PRP and ES., Results: One thousand three hundred ninety-nine patients underwent CEEG. ES occurred in 345 (25%) subjects. PRP, ES + PRP, and ictal-interictal continuum (IIC) patterns occurred in 142 (10%), 81 (6%), and 93 (7%) subjects, respectively. The most common PRP were generalized periodic discharges (GPD; 43, 30%), lateralized periodic discharges (LPD; 34, 24%), generalized rhythmic delta activity (GRDA; 34, 24%), bilateral independent periodic discharges (BIPD; 14, 10%), and lateralized rhythmic delta activity (LRDA; 11, 8%). ES risk varied by PRP type (p < .01). ES occurrence was associated with GPD (odds ratio [OR] = 6.35, p < .01), LPD (OR = 10.45, p < .01), BIPD (OR = 6.77, p < .01), and LRDA (OR = 6.58, p < .01). Some modifying features increased the risk of ES for each of those PRP. GRDA was not significantly associated with ES (OR = 1.34, p = .44). Each of the IIC patterns was associated with ES (OR = 6.83-8.81, p < .01). ES and PRP occurred within 6 h (before or after) in 45 (56%) subjects., Significance: PRP occurred in 10% of critically ill children who underwent CEEG. The most common patterns were GPD, LPD, GRDA, BIPD, and LRDA. The GPD, LPD, BIPD, LRDA, and IIC patterns were associated with ES. GRDA was not associated with ES., (© 2021 International League Against Epilepsy.)
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- 2021
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46. Electrographic Seizures and Outcome in Critically Ill Children.
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Fung FW, Wang Z, Parikh DS, Jacobwitz M, Vala L, Donnelly M, Topjian AA, Xiao R, and Abend NS
- Abstract
Objective: To determine the association between electroencephalographic seizure (ES) and electroencephalographic status epilepticus (ESE) exposure and unfavorable neurobehavioral outcomes in critically ill children with acute encephalopathy., Methods: This was a prospective cohort study of acutely encephalopathic critically ill children undergoing continuous EEG monitoring (CEEG). ES exposure was assessed as (1) no ES/ESE, (2) ES, or (3) ESE. Outcomes assessed at discharge included the Glasgow Outcome Scale-Extended Pediatric Version (GOS-E-Peds), Pediatric Cerebral Performance Category (PCPC), and mortality. Unfavorable outcome was defined as a reduction in GOS-E-Peds or PCPC score from preadmission to discharge. Stepwise selection was used to generate multivariate logistic regression models that assessed associations between ES exposure and outcomes while adjusting for multiple other variables., Results: Among 719 consecutive critically ill patients, there was no evidence of ES in 535 patients (74.4%), ES occurred in 140 patients (19.5%), and ESE in 44 patients (6.1%). The final multivariable logistic regression analyses included ES exposure, age dichotomized at 1 year, acute encephalopathy category, initial EEG background category, comatose at CEEG initiation, and Pediatric Index of Mortality 2 score. There was an association between ESE and unfavorable GOS-E-Peds (odds ratio 2.21, 95% confidence interval 1.07-4.54) and PCPC (odds ratio 2.17, 95% confidence interval 1.05-4.51) but not mortality. There was no association between ES and unfavorable outcome or mortality., Conclusions: Among acutely encephalopathic critically ill children, there was an association between ESE and unfavorable neurobehavioral outcomes, but no association between ESE and mortality. ES exposure was not associated with unfavorable neurobehavioral outcomes or mortality., (© 2021 American Academy of Neurology.)
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- 2021
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47. Discovery and Optimization of DNA Gyrase and Topoisomerase IV Inhibitors with Potent Activity against Fluoroquinolone-Resistant Gram-Positive Bacteria.
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Lapointe G, Skepper CK, Holder LM, Armstrong D, Bellamacina C, Blais J, Bussiere D, Bian J, Cepura C, Chan H, Dean CR, De Pascale G, Dhumale B, Fisher LM, Fulsunder M, Kantariya B, Kim J, King S, Kossy L, Kulkarni U, Lakshman J, Leeds JA, Ling X, Lvov A, Ma S, Malekar S, McKenney D, Mergo W, Metzger L, Mhaske K, Moser HE, Mostafavi M, Namballa S, Noeske J, Osborne C, Patel A, Patel D, Patel T, Piechon P, Polyakov V, Prajapati K, Prosen KR, Reck F, Richie DL, Sanderson MR, Satasia S, Savani B, Selvarajah J, Sethuraman V, Shu W, Tashiro K, Thompson KV, Vaarla K, Vala L, Veselkov DA, Vo J, Vora B, Wagner T, Wedel L, Williams SL, Yendluri S, Yue Q, Yifru A, Zhang Y, and Rivkin A
- Subjects
- Animals, Anti-Bacterial Agents chemistry, Drug Resistance, Bacterial drug effects, Mice, Topoisomerase II Inhibitors chemistry, Anti-Bacterial Agents pharmacology, DNA Gyrase metabolism, DNA Topoisomerase IV antagonists & inhibitors, Drug Design, Fluoroquinolones pharmacology, Staphylococcus aureus drug effects, Topoisomerase II Inhibitors pharmacology
- Abstract
Herein, we describe the discovery and optimization of a novel series that inhibits bacterial DNA gyrase and topoisomerase IV via binding to, and stabilization of, DNA cleavage complexes. Optimization of this series led to the identification of compound 25 , which has potent activity against Gram-positive bacteria, a favorable in vitro safety profile, and excellent in vivo pharmacokinetic properties. Compound 25 was found to be efficacious against fluoroquinolone-sensitive Staphylococcus aureus infection in a mouse thigh model at lower doses than moxifloxacin. An X-ray crystal structure of the ternary complex formed by topoisomerase IV from Klebsiella pneumoniae , compound 25 , and cleaved DNA indicates that this compound does not engage in a water-metal ion bridge interaction and forms no direct contacts with residues in the quinolone resistance determining region (QRDR). This suggests a structural basis for the reduced impact of QRDR mutations on antibacterial activity of 25 compared to fluoroquinolones.
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- 2021
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48. Machine learning models to predict electroencephalographic seizures in critically ill children.
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Hu J, Fung FW, Jacobwitz M, Parikh DS, Vala L, Donnelly M, Topjian AA, Abend NS, and Xiao R
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- Child, Electroencephalography, Humans, Machine Learning, Prospective Studies, Critical Illness, Seizures diagnosis
- Abstract
Objective: To determine whether machine learning techniques would enhance our ability to incorporate key variables into a parsimonious model with optimized prediction performance for electroencephalographic seizure (ES) prediction in critically ill children., Methods: We analyzed data from a prospective observational cohort study of 719 consecutive critically ill children with encephalopathy who underwent clinically-indicated continuous EEG monitoring (CEEG). We implemented and compared three state-of-the-art machine learning methods for ES prediction: (1) random forest; (2) Least Absolute Shrinkage and Selection Operator (LASSO); and (3) Deep Learning Important FeaTures (DeepLIFT). We developed a ranking algorithm based on the relative importance of each variable derived from the machine learning methods., Results: Based on our ranking algorithm, the top five variables for ES prediction were: (1) epileptiform discharges in the initial 30 minutes, (2) clinical seizures prior to CEEG initiation, (3) sex, (4) age dichotomized at 1 year, and (5) epileptic encephalopathy. Compared to the stepwise selection-based approach in logistic regression, the top variables selected by our ranking algorithm were more informative as models utilizing the top variables achieved better prediction performance evaluated by prediction accuracy, AUROC and F1 score. Adding additional variables did not improve and sometimes worsened model performance., Conclusion: The ranking algorithm was helpful in deriving a parsimonious model for ES prediction with optimal performance. However, application of state-of-the-art machine learning models did not substantially improve model performance compared to prior logistic regression models. Thus, to further improve the ES prediction, we may need to collect more samples and variables that provide additional information., (Copyright © 2021. Published by Elsevier Ltd.)
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- 2021
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49. Validation of a model to predict electroencephalographic seizures in critically ill children.
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Fung FW, Parikh DS, Jacobwitz M, Vala L, Donnelly M, Wang Z, Xiao R, Topjian AA, and Abend NS
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- Child, Clinical Decision Rules, Female, Humans, Infant, Male, Prospective Studies, Reproducibility of Results, Risk Factors, Seizures epidemiology, Critical Illness epidemiology, Electroencephalography, Models, Statistical, Seizures etiology
- Abstract
Objective: Electroencephalographic seizures (ESs) are common in encephalopathic critically ill children, but identification requires extensive resources for continuous electroencephalographic monitoring (CEEG). In a previous study, we developed a clinical prediction rule using three clinical variables (age, acute encephalopathy category, clinically evident seizure[s] prior to CEEG initiation) and two electroencephalographic (EEG) variables (EEG background category and interictal discharges within the first 30 minutes of EEG) to identify patients at high risk for ESs for whom CEEG might be essential. In the current study, we aimed to validate the ES prediction model using an independent cohort., Methods: The prospectively acquired validation cohort consisted of 314 consecutive critically ill children treated in the Pediatric Intensive Care Unit of a quaternary care referral hospital with acute encephalopathy undergoing clinically indicated CEEG. We calculated test characteristics using the previously developed prediction model in the validation cohort. As in the generation cohort study, we selected a 0.10 cutpoint to emphasize sensitivity., Results: The incidence of ESs in the validation cohort was 22%. The generation and validation cohorts were alike in most clinical and EEG characteristics. The ES prediction model was well calibrated and well discriminating in the validation cohort. The model had a sensitivity of 90%, specificity of 37%, positive predictive value of 28%, and negative predictive value of 93%. If applied, the model would limit 31% of patients from undergoing CEEG while failing to identify 10% of patients with ESs. The model had similar performance characteristics in the generation and validation cohorts., Significance: A model employing five readily available clinical and EEG variables performed well when validated in a new consecutive cohort. Implementation would substantially reduce CEEG utilization, although some patients with ESs would not be identified. This model may serve a critical role in targeting limited CEEG resources to critically ill children at highest risk for ESs., (© 2020 International League Against Epilepsy.)
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- 2020
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50. EEG monitoring duration to identify electroencephalographic seizures in critically ill children.
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Fung FW, Fan J, Vala L, Jacobwitz M, Parikh DS, Donnelly M, Topjian AA, Xiao R, and Abend NS
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- Child, Child, Preschool, Cohort Studies, Electroencephalography methods, Female, Humans, Infant, Male, Monitoring, Physiologic methods, Prospective Studies, Critical Illness, Electroencephalography trends, Monitoring, Physiologic trends, Seizures diagnosis, Seizures physiopathology
- Abstract
Objectives: To determine the optimal duration of continuous EEG monitoring (CEEG) for electrographic seizure (ES) identification in critically ill children., Methods: We performed a prospective observational cohort study of 719 consecutive critically ill children with encephalopathy. We evaluated baseline clinical risk factors (age and prior clinically evident seizures) and emergent CEEG risk factors (epileptiform discharges and ictal-interictal continuum patterns) using a multistate survival model. For each subgroup, we determined the CEEG duration for which the risk of ES was <5% and <2%., Results: ES occurred in 184 children (26%). Patients achieved <5% risk of ES after (1) 6 hours if ≥1 year without prior seizures or EEG risk factors; (2) 1 day if <1 year without prior seizures or EEG risks; (3) 1 day if ≥1 year with either prior seizures or EEG risks; (4) 2 days if ≥1 year with prior seizures and EEG risks; (5) 2 days if <1 year without prior seizures but with EEG risks; and (6) 2.5 days if <1 year with prior seizures regardless of the presence of EEG risks. Patients achieved <2% risk of ES at the same durations except patients without prior seizures or EEG risk factors would require longer CEEG (1.5 days if <1 year of age, 1 day if ≥1 year of age)., Conclusions: A model derived from 2 baseline clinical risk factors and emergent EEG risk factors would allow clinicians to implement personalized strategies that optimally target limited CEEG resources. This would enable more widespread use of CEEG-guided management as a potential neuroprotective strategy., Clinicaltrialsgov Identifier: NCT03419260., (© 2020 American Academy of Neurology.)
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- 2020
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