Search

Your search keyword '"Richardson V."' showing total 97 results
Start Over Author "Richardson V." Search Limiters Peer Reviewed
97 results on '"Richardson V."'

4. Corrected and Republished: Applicability of Boston University approach for prediction of mesiodistal width of canines and premolars in the primary schoolchildren of rural Bengaluru: An in vivo study

Author

Richardson V Thomas and Neeti Bajaj

Subjects
boston university analysis, digital vernier caliper, mesiodistal width, mixed dentition analysis, prediction, tanaka–johnston analysis, Dentistry, RK1-715
Abstract

Introduction: Boston University (BU) approach is a method for early prediction of unerupted permanent mandibular teeth widths based on the mesiodistal widths (MDWs) of primary mandibular canines and first molars. The present study was conducted to test the validity of BU approach by comparing it with Tanaka–Johnston (T/J) approach in the contemporary population. Aims and Objective: The aim of the study was to determine the applicability of BU approach for prediction of the MDWs of canines and premolars in the primary schoolchildren of rural Bengaluru. Materials and Methods: The study was conducted in 100 healthy schoolchildren of rural Bengaluru aged between 7 and 11 years. The MDWs of canines and premolars were predicted using both T/J and the considered BU approaches for all the children and were compared. Results: The correlation coefficient showed a statistically significant correlation between the predicted tooth size from the two predicted methods in the upper and lower arches (P < 0.001), with Pearson's correlation coefficient showing the very strong positive relationship (r = 0.7). Significant differences were seen between the mean predicted width of canines and premolars by both the approaches (P < 0.001). Conclusion: In spite of the limitations, we recommend the use of BU approach to predict arch length-tooth material discrepancy at an early age and to get at least an approximate estimation of the required space. We also advocate the necessity of further research on this approach prospectively.

Published
2021
Full Text
View/download PDF

7. Infrared action spectroscopy as tool for probing gas-phase dynamics: protonated dimethyl ether, (CH3)2OH+, formed by the reaction of CH3OH2+ with CH3OH.

Author

Richardson, V., Rap, D. B., Brünken, S., and Ascenzi, D.

Subjects
*INFRARED spectroscopy, *VIBRATIONAL spectra, *METHYL ether, *FREE electron lasers, *INFRARED lasers, *ETHER synthesis, *ION-molecule collisions
Abstract

Methanol is one of the most abundant interstellar Complex Organic Molecules (iCOMs) and represents a major building block for the synthesis of increasingly complex oxygen-containing molecules. The reaction between protonated methanol and its neutral counterpart, giving protonated dimethyl ether, $ \require{mhchem} \ce{(CH3)2OH+} $ (CH 3 ) 2 OH + , along with the ejection of a water molecule, has been proposed as a key reaction in the synthesis of dimethyl ether in space. Here, gas phase vibrational spectra of the $ \ce{(CH3)2OH+} $ (CH 3 ) 2 OH + reaction product and the $ \ce{[C2H9O2]+} $ [ C 2 H 9 O 2 ] + intermediate complex(es), formed under different pressure and temperature conditions, are presented. The widely tunable free electron laser for infrared experiments, FELIX, was employed to record these vibrational fingerprint spectra using different types of infrared action spectroscopy in the 600-1700 cm $ ^{-1} $ − 1 frequency range, complemented with measurements using an OPO/OPA system to cover the $ \ce{O-H} $ O − H stretching region $ 3400-3700\,{\rm cm}^{-1} $ 3400 − 3700 c m − 1 . The formation of protonated dimethyl ether as a product of the reaction is spectroscopically confirmed, providing the first gas-phase vibrational spectrum of this potentially relevant astrochemical ion. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

12. Corrected and Republished: Applicability of Boston University approach for prediction of mesiodistal width of canines and premolars in the primary schoolchildren of rural Bengaluru: An study.

Author

Thomas, Richardson, Bajaj, Neeti, and Thomas, Richardson V

Subjects
MIXED dentition, CUSPIDS, BICUSPIDS, ANTHROPOMETRY, MANDIBLE, ARTHRITIS Impact Measurement Scales, UNIVERSITIES & colleges, TEETH abnormalities
Abstract

Introduction: Boston University (BU) approach is a method for early prediction of unerupted permanent mandibular teeth widths based on the mesiodistal widths (MDWs) of primary mandibular canines and first molars. The present study was conducted to test the validity of BU approach by comparing it with Tanaka-Johnston (T/J) approach in the contemporary population.Aims and Objective: The aim of the study was to determine the applicability of BU approach for prediction of the MDWs of canines and premolars in the primary schoolchildren of rural Bengaluru.Materials and Methods: The study was conducted in 100 healthy schoolchildren of rural Bengaluru aged between 7 and 11 years. The MDWs of canines and premolars were predicted using both T/J and the considered BU approaches for all the children and were compared.Results: The correlation coefficient showed a statistically significant correlation between the predicted tooth size from the two predicted methods in the upper and lower arches (P < 0.001), with Pearson's correlation coefficient showing the very strong positive relationship (r = 0.7). Significant differences were seen between the mean predicted width of canines and premolars by both the approaches (P < 0.001).Conclusion: In spite of the limitations, we recommend the use of BU approach to predict arch length-tooth material discrepancy at an early age and to get at least an approximate estimation of the required space. We also advocate the necessity of further research on this approach prospectively. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

13. Applicability of Boston University approach for prediction of mesiodistal width of canines and premolars in the primary schoolchildren of rural Bengaluru: An study.

Author

Thomas, Richardson, Bajaj, Neeti, and Thomas, Richardson V

Subjects
BICUSPIDS, SCHOOL children, PEARSON correlation (Statistics), IN vivo studies, FORECASTING
Abstract

Introduction: Boston University (BU) approach is a method for early prediction of unerupted permanent mandibular teeth widths based on the mesiodistal widths (MDWs) of primary mandibular canines and first molars. The present study was conducted to test the validity of BU approach by comparing it with Tanaka-Johnston (T/J) approach in the contemporary population.Aims and Objective: The aim of the study was to determine the applicability of BU approach for prediction of the MDWs of canines and premolars in the primary schoolchildren of rural Bengaluru.Materials and Methods: The study was conducted in 100 healthy schoolchildren of rural Bengaluru aged between 7 and 11 years. The MDWs of canines and premolars were predicted using both T/J and the considered BU approaches for all the children and were compared.Results: The correlation coefficient showed a statistically significant correlation between the predicted tooth size from the two predicted methods in the upper and lower arches (P < 0.001), with Pearson's correlation coefficient showing the very strong positive relationship (r = 0.7). Significant differences were seen between the mean predicted width of canines and premolars by both the approaches (P < 0.001).Conclusion: In spite of the limitations, we recommend the use of BU approach to predict arch length-tooth material discrepancy at an early age and to get at least an approximate estimation of the required space. We also advocate the necessity of further research on this approach prospectively. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

14. Erosion and deposition in the JET divertor during the second ITER-like wall campaign

Author

Mayer, M., Krat, S., Baron-Wiechec, A., Gasparyan, Y., Heinola, K., Koivuranta, S., Likonen, J., Ruset, C., De Saint-Aubin, G., Litaudon, Widdowson A., Abduallev, X., Abhangi, S., Abreu, M., Afzal, P., Aggarwal, M., Ahlgren, K. M., Ahn, T., J. H., Aho, Mantila, Aiba, L., Airila, N., Albanese, M., Aldred, R., Alegre, V., Alessi, D., Aleynikov, E., Alfier, P., Alberto, Alkseev, Allinson, A., Alper, M., Alves, B., Ambrosino, E., Ambrosino, G., Amicucci, R., Amosov, L., Andersson, Sundã©n, Angelone, E., Anghel, M., Angioni, M., Appel, C., Appelbee, L., Arena, C., Ariola, P., Arnichand, M., Arshad, H., Ash, S., Ashikawa, A., Aslanyan, N., Asunta, V., Auriemma, O., Fulvio, Austin, Avotina, Y., Axton, L., Ayres, M. D., Bacharis, C., Baciero, M., Baiã¡o, A., Bailey, D., Baker, S., Balboa, A., Balden, I., Balshaw, M., Bament, N., Banks, R., Baranov, J. W., Barnard, Y. F., Barnes, M. A., Barnes, D., Barnsley, M., Baron, Wiechec, Barrera, Orte, Baruzzo, L., Matteo, Basiuk, Bassan, V., Bastow, M., Batista, R., Batistoni, A., Baughan, P., Bauvir, R., Baylor, B., Bazylev, L., Beal, B., Beaumont, J., Beckers, P. S., Beckett, M., Becoulet, B., Bekris, A., Beldishevski, N., Bell, M., Belli, K., Bellinger, F., Belonohy, M., Ben, Ayed, Benterman, N., Bergsã¥ker, N. A., Bernardo, H., Bernert, J., Berry, M., Bertalot, M., Besliu, L., Beurskens, C., Bieg, M., Bielecki, B., Biewer, J., Bigi, T., Bã¬lkovã¡, M., Binda, P., Bisoffi, F., Bizarro, A., Bjã¶rkas, J. P. S., Blackburn, C., Blackman, J., Blackman, K., Blanchard, T. R., Blatchford, P., Bobkov, P., Boboc, V., Bodnã¡r, A., Bogar, G., Bolshakova, O., Bolzonella, I., Tommaso, Bonanomi, Bonelli, N., Boom, F., Booth, J., Borba, J., Borodin, D., Borodkina, D., Botrugno, I., Bottereau, A., Boulting, C., Bourdelle, P., Bowden, C., Bower, M., Bowman, C., Boyce, C., Boyd, T., Boyer, C., Bradshaw, H. J., Braic, J. M. A., Bravanec, V., Breizman, R., Bremond, B., Brennan, S., Breton, P. D., Brett, S., Brezinsek, A., Bright, S., Brix, M. D. J., Broeckx, M., Brombin, W., Matteo, Broså‚awski, Brown, A., Brown, D. P. D., Bruno, M., Bucalossi, E., Buch, J., Buchanan, J., Buckley, J., Budny, M. A., Bufferand, R., Bulman, H., Bulmer, M., Bunting, N., Buratti, P., Burckhart, P., Buscarino, A., Busse, A., Butler, A., Bykov, N. K., Byrne, I., Cahyna, J., Calabrã², P., Calvo, G., Camenen, I., Camp, Y., Campling, P., Cane, D. C., Cannas, J., Capel, B., Card, A. J., Cardinali, P. J., Carman, A., Carr, P., Carralero, M., Carraro, D., Carvalho, L., Carvalho, B. B., Carvalho, I., Casson, P., Castaldo, F. J., Catarino, C., Caumont, N., Causa, J., Cavazzana, F., Cave, Ayland, Cavinato, K., Cecconello, M., Ceccuzzi, M., Cecil, S., Cenedese, E., Angelo, Cesario, Challis, R., Chandler, C. D., Chandra, M., Chang, D., Chankin, C. S., Chapman, A., Chapman, I. T., Chernyshova, S. C., Chitarin, M., Giuseppe, Ciraolo, Ciric, G., Citrin, D., Clairet, J., Clark, F., Clark, E., Clarkson, M., Clatworthy, R., Clements, D., Cleverly, C., Coad, M., Coates, J. P., Cobalt, P. A., Coccorese, A., Cocilovo, V., Coda, V., Coelho, S., Coenen, R., Coffey, J. W., Colas, I., Collins, L., Conka, S., Conroy, D., Conway, S., Coombs, N., Cooper, D., Corradino, S. R., Corre, C., Corrigan, Y., Cortes, G., Coster, S., Couchman, D., Cox, A. S., Craciunescu, M. P., Cramp, T., Craven, S., Crisanti, R., Croci, F., Croft, G., Crombã©, D., Crowe, K., Cruz, R., Cseh, N., Cufar, G., Cullen, A., Curuia, A., Czarnecka, M., Dabirikhah, A., Dalgliesh, H., Dalley, P., Dankowski, S., Darrow, J., Davies, D., Davis, O., Day, W., Day, C., I. E., Bock, De, Castro, De, De La Cal, De La Luna, Masi, De, Pablos, De, J. L., Temmerman, De, Tommasi, De, Vries, De, Deakin, P., Deane, K., Degli, Agostini, Dejarnac, F., Delabie, R., Den, Harder, Dendy, N., Denis, R. O., Denner, J., Devaux, P., Devynck, S., Maio, Di, Siena, Di, Troia, Di, Dinca, C., D'Inca, P., Ding, R., Dittmar, B., Doerk, T., Doerner, H., Donnã©, R. P., Dorling, T., S. E., Dormido, Canto, Doswon, S., Douai, S., Doyle, D., Drenik, P. T., Drewelow, A., Drews, P., Duckworth, P., Dumont, P. h., Dumortier, R., Dunai, P., Dunne, D., Äžuran, M., Durodiã©, I., Dutta, F., Duval, P., Dux, B. P., Dylst, R., Dzysiuk, K., Edappala, N., Edmond, P. V., Edwards, J., Edwards, A. M., Eich, J., Ekedahl, T. h., Jorf, El, Elsmore, R., Enachescu, C. G., Ericsson, M., Eriksson, G., Eriksson, F., Eriksson, J., Esposito, L. G., Esquembri, B., Esser, S., Esteve, H. G., Evans, D., Evans, B., Evison, G. E., Ewart, G., Fagan, G. D., Faitsch, D., Falie, M., Fanni, D., Fasoli, A., Faustin, A., Fawlk, J. M., Fazendeiro, N., Fedorczak, L., Felton, N., Fenton, R. C., Fernades, K., Fernandes, A., Ferreira, H., Fessey, J., Fã©vrier, J. A., Ficker, O., Field, O., Fietz, A., Figueiredo, S., Figueiredo, A., Fil, J., Finburg, A., Firdaouss, P., Fischer, M., Fittill, U., Fitzgerald, L., Flammini, M., Flanagan, D., Fleming, J., Flinders, C., Fonnesu, K., Fontdecaba, N., Formisano, J. M., Forsythe, A., Fortuna, L., Fortuna, Zalesna, Fortune, E., Foster, M., Franke, S., Franklin, T., Frasca, T., Frassinetti, M., Freisinger, L., Fresa, M., Frigione, R., Fuchs, D., Fuller, V., Futatani, D., Fyvie, S., Gã¡l, J., Galassi, K., Gaå‚azka, D., Galdon, Quiroga, Gallagher, J., Gallart, J., Galvã¡o, D., Gao, R., Gao, X., Garcia, Y., Garcia, Carrasco, Garcã¬a, Muã±oz, Gardarein, M., Garzotti, J. L., Gaudio, L., Gauthier, P., Gear, E., Gee, D. F., Geiger, S. J., Gelfusa, B., Gerasimov, M., Gervasini, S., Gethins, G., Ghani, M., Ghate, Z., Gherendi, M., Giacalone, M., Giacomelli, J. C., Gibson, L., Giegerich, C. S., Gil, T., Gil, C., Gilligan, L., Gin, S., Giovannozzi, D., Girardo, E., Giroud, J. B., Giruzzi, C., Gerardo, Glã¶ggler, Godwin, S., Goff, J., Gohil, J., Goloborod'Ko, P., Gomes, V., Goncalves, R., Goniche, B., Goodliffe, M., Goodyear, M., Gorini, A., Gosk, G., Goulding, M., Goussarov, R., Gowland, A., Graham, R., Graham, B., Graves, M. E., Grazier, J. P., Grazier, N., Green, P., Greuner, N. R., Grierson, H., Griph, B., Grisolia, F. S., Grist, C., Groth, D., Grove, M., Grundy, R., Grzonka, C. N., Guard, J., Guã©rard, D., Guillemaut, C., Guirlet, C., Gurl, R., Utoh, C., Hackett, H. H., Hacquin, L. J., Hagar, S., Hager, A., Hakola, R., Halitovs, A., Hall, M., S. J., Hallworth, Cook, S. P., Hamlyn, Harris, Hammond, C., Harrington, K., Harrison, C., Harting, J., Hasenbeck, D., Hatano, F., Hatch, Y., Haupt, D. R., Hawes, T. D. V., Hawkes, J., Hawkins, N. C., Hawkins, J., Haydon, P., Hayter, P. W., Hazel, N., Heesterman, S., Heinola, P. J. L., Hellesen, K., Hellsten, C., Helou, T., Hemming, W., Hender, O. N., Henderson, T. C., Henderson, M., Henriques, S. S., Hepple, R., Hermon, D., Hertout, G., Hidalgo, P., Highcock, C., Hill, E. G., Hillairet, M., Hillesheim, J., Hillis, J., Hizanidis, D., Hjalmarsson, K., Hobirk, A., Hodille, J., Hogben, E., Hogeweij, C. H. A., Hollingsworth, G. M. D., Hollis, A., Homfray, S., Horã¡äek, D. A., Hornung, J., Horton, G., Horton, A. R., Horvath, L. D., Hotchin, L., Hough, S. P., Howarth, M. R., Hubbard, P. J., Huber, A., Huddleston, V., Hughes, T. M., Huijsmans, M., Hunter, G. T. A., Huynh, C. L., Hynes, P., Iglesias, A. M., Imazawa, D., Imbeaux, N., Imrã¬å¡ek, F., Incelli, M., Innocente, M., Irishkin, P., Ivanova, Stanik, Jachmich, I., Jacobsen, S., Jacquet, A. S., Jansons, P., Jardin, J., Jã¤rvinen, A., Jaulmes, A., Jednorã³g, F., Jenkins, S., Jeong, I., Jepu, C., Joffrin, I., Johnson, E., Johnson, R., Johnston, T., Jane, Joita, Jones, L., Jones, G., Hoshino, T. T. C., Kallenbach, K. K., Kamiya, A., Kaniewski, K., Kantor, J., Kappatou, A., Karhunen, A., Karkinsky, J., Karnowska, D., Kaufman, I., Kaveney, M., Kazakov, G., Kazantzidis, Y., Keeling, V., Keenan, D. L., Keep, T., Kempenaars, J., Kennedy, M., Kenny, C., Kent, D., Kent, J., Khilkevich, O. N., Kim, E., Kim, H. T., Kinch, H. S., King, A., King, C., King, D., Kinna, R. F., Kiptily, D. J., Kirk, V., Kirov, A., Kirschner, K., Kizane, A., Klepper, G., Klix, C., Knight, A., Knipe, P., Knott, S. J., Kobuchi, S., Kã¶chl, T., Kocsis, F., Kodeli, G., Kogan, I., Kogut, L., Koivuranta, D., Kominis, S., Kã¶ppen, Y., Kos, M., Koskela, B., Koslowski, T., Koubiti, H. R., Kovari, M., Kowalska, Strzè©ciwilk, Krasilnikov, E., Krasilnikov, A., Krawczyk, V., Kresina, N., Krieger, M., Krivska, K., Kruezi, A., Ksiaå¼ek, U., Kukushkin, I., Kundu, A., Kurki, Suonio, Kwak, T., Kwiatkowski, S., Kwon, R., Laguardia, O. J., Lahtinen, L., Laing, A., Lam, A., Lambertz, N., Lane, H. T., Lang, C., Lanthaler, P. T., Lapins, S., Lasa, J., Last, A., Łaszyå„ska, J. R., Lawless, E., Lawson, R., Lawson, A., Lazaros, K. D., Lazzaro, A., Leddy, E., Lee, J., Lefebvre, S., Leggate, X., Lehmann, H. J., Lehnen, J., Leichtle, M., Leichuer, D., Leipold, P., Lengar, F., Lennholm, I., Lerche, M., Lescinskis, E., Lesnoj, A., Letellier, S., Leyland, E., Leysen, M., Li, W., Liang, L., Likonen, Y., Linke, J., Linsmeier, J., Lipschultz, C. h., Liu, B., Liu, G., Schiavo, Lo, Loarer, V. P., Loarte, T., Lobel, A., Lomanowski, R. C., Lomas, B., Lã¶nnroth, P. J., Lã³pez, J., J. M., Lã³pez, Razola, Lorenzini, J., Losada, R., Lovell, U., Loving, J. J., Lowry, A. B., Luce, C., Lucock, T., Lukin, R. M. A., Luna, A., Lungaroni, C., Lungu, M., Lungu, C. P., Lunniss, M., Lupelli, A., Lyssoivan, I., Macdonald, A., Macheta, N., Maczewa, P., Magesh, K., Maget, B., Maggi, P., Maier, C., Mailloux, H., Makkonen, J., Makwana, T., Malaquias, R., Malizia, A., Manas, A., Manning, P., Manso, A., Mantica, M. E., Mantsinen, P., Manzanares, M., Maquet, A., Marandet, P. h., Marcenko, Y., Marchetto, N., Marchuk, C., Marinelli, O., Marinucci, M., Markoviä, M., Marocco, T., Marot, D., Marren, L., Marshal, C. A., Martin, R., Martin, A., Martìn De Aguilera, Martã¬nez, A., F. J., Martã¬n, Solã¬s, Martynova, J. R., Maruyama, Y., Masiello, S., Maslov, A., Matejcik, M., Mattei, S., Matthews, M., Maviglia, G. F., Mayer, F., Mayoral, M., M. L., May, Smith, Mazon, T., Mazzotta, D., Mcadams, C., Mccarthy, R., Mcclements, P. J., Mccormack, K. G., Mccullen, O., Mcdonald, P. A., Mcintosh, D., Mckean, S., Mckehon, R., Meadows, J., Meakins, R. C., Medina, A., Medland, F., Medley, M., Meigh, S., Meigs, S., Meisl, A. G., Meitner, G., Meneses, S., Menmuir, L., Mergia, S., Merrigan, K., Mertens, I. R., Meshchaninov, P. h., Messiaen, S., Meyer, A., Mianowski, H., Michling, S., Middleton, Gear, Miettunen, D., Militello, J., Militello, Asp, Miloshevsky, E., Mink, G., Minucci, F., Miyoshi, S., Mlynã¡å™, Y., Molina, J., Monakhov, D., Moneti, I., Mooney, M., Moradi, R., Mordijck, S., Moreira, S., Moreno, L., Moro, R., Morris, F., Morris, A. W., Moser, J., Mosher, L., Moulton, S., Murari, D., Muraro, A., Murphy, A., Asakura, S., N. N., Na, Nabais, Y. S., Naish, F., Nakano, R., Nardon, T., Naulin, E., Nave, V., Nedzelski, M. F. F., Nemtsev, I., Nespoli, G., Neto, F., Neu, A., Neverov, R., Newman, V. S., Nicholls, M., Nicolas, K. J., Nielsen, T., Nielsen, A. H., Nilsson, P., Nishijima, E., Noble, D., Nocente, C., Nodwell, M., Nordlund, D., Nordman, K., Nouailletas, H., Nunes, R., Oberkofler, I., Odupitan, M., Ogawa, T., O'Gorman, M. T., Okabayashi, T., Olney, M., Omolayo, R., O'Mullane, O., Ongena, M., Orsitto, J., Orszagh, F., Oswuigwe, J., Otin, B. I., Owen, R., Paccagnella, A., Pace, R., Pacella, N., Packer, D., Page, L. W., Pajuste, A., Palazzo, E., Pamela, S., Panja, S., Papp, S., Paprok, P., Parail, R., Park, V., Parra, Diaz, Parsons, F., Pasqualotto, M., Patel, R., Pathak, A., Paton, S., Patten, D., Pau, H., Pawelec, A., Paz, Soldan, Peackoc, C., Pearson, A., Pehkonen, I. J., Peluso, S. P., Penot, E., Pereira, C., Pereira, A., Pereira, Puglia, P. P., Perez Von Thun, Peruzzo, C., Peschanyi, S., Peterka, S., Petersson, M., Petravich, P., Petre, G., Petrella, A., Petrå¾ilka, N., Peysson, V., Pfefferlã©, Y., Philipps, D., Pillon, V., Pintsuk, M., Piovesan, G., Pires Dos Reis, Piron, Lidia, Pironti, A., Pisano, F., Pitts, R., Pizzo, F., Plyusnin, V., Pomaro, N., Pompilian, O. G., Pool, P. J., Popovichev, S., Porfiri, M. T., Porosnicu, C., Porton, M., Possnert, G., Potzel, S., Powell, T., Pozzi, J., Prajapati, V., Prakash, R., Prestopino, G., Price, D., Price, M., Price, R., Prior, P., Proudfoot, R., Pucella, G., Puglia, P., Puiatti, M. E., Pulley, D., Purahoo, K., Pã¼tterich, T. h., Rachlew, E., Rack, M., Ragona, R., Rainford, M. S. J., Rakha, A., Ramogida, G., Ranjan, S., Rapson, C. J., Rasmussen, J. J., Rathod, K., Rattã¡, G., Ratynskaia, S., Ravera, G., Rayner, C., Rebai, M., Reece, D., Reed, A., Rã©fy, D., Regan, B., Regaã±a, J., Reich, M., Reid, N., Reimold, F., Reinhart, M., Reinke, M., Reiser, D., Rendell, D., Reux, C., Reyes, Cortes, Reynolds, S. D. A., Riccardo, S., Richardson, V., Riddle, N., Rigamonti, K., Rimini, D., Risner, F. G., Riva, J., Roach, M., Robins, C., Robinson, R. J., Robinson, S. A., Robson, T., Roccella, D. W., Rodionov, R., Rodrigues, R., Rodriguez, P., Rohde, J., Romanelli, V., Romanelli, F., Romanelli, M., Romazanov, S., Rowe, J., Rubel, S., Rubinacci, M., Rubino, G., Ruchko, G., Ruiz, L., Ruset, M., Rzadkiewicz, C., Saarelma, J., Sabot, S., Safi, R., Sagar, E., Saibene, P., Saint, Laurent, Salewski, F., Salmi, M., Salmon, A., Salzedas, R., Samaddar, F., Samm, D., Sandiford, U., Santa, D., Santala, P., Santos, M. I. K., Santucci, B., Sartori, A., Sartori, F., Sauter, R., Scannell, O., Schlummer, R., Schmid, T., Schmidt, K., Schmuck, V., Schneider, S., Schã¶pf, M., Schwã¶rer, K., Scott, D., Sergienko, S. D., Sertoli, G., Shabbir, M., Sharapov, A., Shaw, S. E., Shaw, A., Sheikh, R., Shepherd, H., Shevelev, A., Shumack, A., Sias, A., Sibbald, G., Sieglin, M., Silburn, B., Silva, S., Silva, A., Simmons, C., Simpson, P. A., Simpson, Hutchinson, Sinha, J., Sipilã¤, A., Sips, S. K., Sirã©n, A. C. C., Sirinelli, P., Sjã¶strand, A., Skiba, H., Skilton, M., Slabkowska, R., Slade, K., Smith, B., Smith, N., Smith, P. G., Smith, R., Smithies, T. J., Snoj, M., Soare, L., Solano, S., Somers, E. R., Sommariva, A., Sonato, C., Piergiorgio, Sopplesa, Sousa, A., Sozzi, J., Spagnolo, C., Silvia, Spelzini, Spineanu, T., Stables, F., Stamatelatos, G., Stamp, I., Staniec, M. F., Stankå«nas, P., Stan, Sion, Stead, C., Stefanikova, M. J., Stepanov, E., Stephen, I., Stephen, A. V., Stevens, M., Stevens, A., Strachan, B. D., Strand, J., Strauss, P., Strã¶m, H. R., Stubbs, P., Studholme, G., Subba, W., Summers, F., Svensson, H. P., Åšwiderski, J., Szabolics, Å. ., Szawlowski, T., Szepesi, M., Suzuki, G., Tã¡l, T. T., Tala, B., Talbot, T., Talebzadeh, A. R., Taliercio, S., Cesare, Tamain, Tame, P., Tang, C., Tardocchi, W., Taroni, M., Taylor, L., Taylor, D., Tegnered, K. A., Telesca, D., Teplova, G., Terranova, N., David, Testa, Tholerus, D., Thomas, E., Thomas, J., Thomas, J. D., Thompson, P., Thompson, A., Thompson, C. A., Thorne, V. K., Thornton, L., Thrysã¸e, A., Tigwell, A. S., Tipton, P. A., Tiseanu, N., Tojo, I., Tokitani, H., Tolias, M., Tomeå¡, P., Tonner, M., Towndrow, P., Trimble, M., Tripsky, P., Tsalas, M., Tsavalas, M., Tskhakaya, Jun, Turner, D., Turner, I., Turnyanskiy, M. M., Tvalashvili, M., Tyrrell, G., Uccello, S. G. J., Abidin, Ul, Uljanovs, Z., Ulyatt, J., Urano, D., Uytdenhouwen, H., Vadgama, I., Valcarcel, A. P., Valentinuzzi, D., Valisa, M., Vallejos, Olivares, Valovic, P., Van De Mortel, Van, Eester, Van, Renterghem, Van, Rooij, Varje, G. J., Varoutis, J., Vartanian, S., Vasava, S., Vasilopoulou, K., Vega, T., Verdoolaege, J., Verhoeven, G., Verona, R., Verona, Rinati, Veshchev, G., Vianello, E., Vicente, N., Viezzer, J., Villari, E., Villone, S., Vincenzi, F., Pietro, Vinyar, Viola, I., Vitins, B., Vizvary, A., Vlad, Z., Voitsekhovitch, M., Vondrã¡äek, I., Vora, P., Vu, N., Pires De Sa, Wakeling, W. W., Waldon, B., Walkden, C. W. F., Walker, N., Walker, M., Walsh, R., Wang, M., Wang, E., Warder, N., Warren, S., Waterhouse, R. J., Watkins, J., Watts, N. W., Wauters, C., Weckmann, T., Weiland, A., Weisen, J., Weiszflog, H., Wellstood, M., West, C., Wheatley, A. T., Whetham, M. R., Whitehead, S., Whitehead, A. M., Widdowson, B. D., Wiesen, A. M., Wilkinson, S., Williams, J., Wilson, M., Wilson, A. R., Wilson, D. J., Wilson, H. R., Wischmeier, J., Withenshaw, M., Withycombe, G., Witts, A., Wood, D. M., Wood, D., Woodley, R., Wray, C., Wright, S., Wright, J., J. C., Wu, Wukitch, J., Wynn, S., Xu, A., Yadikin, T., Yanling, D., Yao, W., Yavorskij, L., Yoo, V., Young, M. G., Young, C., Young, D., Young, I. D., Zacks, R., Zagorski, J., Zaitsev, R., Zanino, F. S., Zarins, R., Zastrow, A., Zerbini, K. D., Zhang, M., Zhou, W., Zilli, Y., Zoita, E., Zoletnik, V., Zychor, S., I, and JET Contributors

Subjects
Jet (fluid), Surface analysis, Materials science, Divertor, JET-ILW, Material deposition, Material erosion, Nuclear engineering, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010305 fluids & plasmas, 13. Climate action, Material Erosion, 0103 physical sciences, Erosion, 010306 general physics, Deposition (chemistry), Mathematical Physics
Abstract

Erosion of plasma-facing materials and successive transport and redeposition of eroded material are crucial processes determining the lifetime of plasma-facing components and the trapped tritium inventory in redeposited material layers. Erosion and deposition in the JET divertor were studied during the second JET ITER-like wall campaign ILW-2 in 2013-2014 by using a poloidal row of specially prepared divertor marker tiles including the tungsten bulk tile 5. The marker tiles were analyzed using elastic backscattering with 3-4.5 MeV incident protons and nuclear reaction analysis using 0.8-4.5 MeV 3He ions before and after the campaign. The erosion/deposition pattern observed during ILW-2 is qualitatively comparable to the first campaign ILW-1 in 2011-2012: deposits consist mainly of beryllium with 5-20 at.% of carbon and oxygen and small amounts of Ni and W. The highest deposition with deposited layer thicknesses up to 30 μm per campaign is still observed on the upper and horizontal parts of the inner divertor. Outer divertor tiles 5, 6, 7 and 8 are net W erosion areas. The observed D inventory is roughly comparable to the inventory observed during ILW-1. The results obtained during ILW-2 therefore confirm the positive results observed in ILW-1 with respect to reduced material deposition and hydrogen isotopes retention in the divertor.

Published
2017
Full Text
View/download PDF

15. Overview of fuel inventory in JET with the ITER-like wall

Author

Widdowson, A., Coad, J. P., Alves, E., Baron-Wiechec, A., Barradas, N. P., Brezinsek, S., Catarino, N., Corregidor, V., Heinola, K., Koivuranta, S., Krat, S., Lahtinen, A., Likonen, J., Matthews, G. F., Mayer, M., Petersson, P., Litaudon, Rubel M., Abduallev, X., Abhangi, S., Abreu, M., Afzal, P., Aggarwal, M., Ahlgren, K. M., Ahn, T., J. H., Aho, Mantila, Aiba, L., Airila, N., Albanese, M., Aldred, R., Alegre, V., Alessi, D., Aleynikov, E., Alfier, P., Alberto, Alkseev, Allinson, A., Alper, M., Alves, B., Ambrosino, E., Ambrosino, G., Amicucci, R., Amosov, L., Andersson, Sundã©n, Angelone, E., Anghel, M., Angioni, M., Appel, C., Appelbee, L., Arena, C., Ariola, P., Arnichand, M., Arshad, H., Ash, S., Ashikawa, A., Aslanyan, N., Asunta, V., Auriemma, O., Fulvio, Austin, Avotina, Y., Axton, L., Ayres, M. D., Bacharis, C., Baciero, M., Baiã¡o, A., Bailey, D., Baker, S., Balboa, A., Balden, I., Balshaw, M., Bament, N., Banks, R., Baranov, J. W., Barnard, Y. F., Barnes, M. A., Barnes, D., Barnsley, M., Baron, Wiechec, Barrera, Orte, Baruzzo, L., Matteo, Basiuk, Bassan, V., Bastow, M., Batista, R., Batistoni, A., Baughan, P., Bauvir, R., Baylor, B., Bazylev, L., Beal, B., Beaumont, J., Beckers, P. S., Beckett, M., Becoulet, B., Bekris, A., Beldishevski, N., Bell, M., Belli, K., Bellinger, F., Belonohy, M., Ben, Ayed, Benterman, N., Bergsã¥ker, N. A., Bernardo, H., Bernert, J., Berry, M., Bertalot, M., Besliu, L., Beurskens, C., Bieg, M., Bielecki, B., Biewer, J., Bigi, T., Bã¬lkovã¡, M., Binda, P., Bisoffi, F., Bizarro, A., Bjã¶rkas, J. P. S., Blackburn, C., Blackman, J., Blackman, K., Blanchard, T. R., Blatchford, P., Bobkov, P., Boboc, V., Bodnã¡r, A., Bogar, G., Bolshakova, O., Bolzonella, I., Tommaso, Bonanomi, Bonelli, N., Boom, F., Booth, J., Borba, J., Borodin, D., Borodkina, D., Botrugno, I., Bottereau, A., Boulting, C., Bourdelle, P., Bowden, C., Bower, M., Bowman, C., Boyce, C., Boyd, T., Boyer, C., Bradshaw, H. J., Braic, J. M. A., Bravanec, V., Breizman, R., Bremond, B., Brennan, S., Breton, P. D., Brett, S., Brezinsek, A., Bright, S., Brix, M. D. J., Broeckx, M., Brombin, W., Matteo, Broså‚awski, Brown, A., Brown, D. P. D., Bruno, M., Bucalossi, E., Buch, J., Buchanan, J., Buckley, J., Budny, M. A., Bufferand, R., Bulman, H., Bulmer, M., Bunting, N., Buratti, P., Burckhart, P., Buscarino, A., Busse, A., Butler, A., Bykov, N. K., Byrne, I., Cahyna, J., Calabrã², P., Calvo, G., Camenen, I., Camp, Y., Campling, P., Cane, D. C., Cannas, J., Capel, B., Card, A. J., Cardinali, P. J., Carman, A., Carr, P., Carralero, M., Carraro, D., Carvalho, L., Carvalho, B. B., Carvalho, I., Casson, P., Castaldo, F. J., Catarino, C., Caumont, N., Causa, J., Cavazzana, F., Cave, Ayland, Cavinato, K., Cecconello, M., Ceccuzzi, M., Cecil, S., Cenedese, E., Angelo, Cesario, Challis, R., Chandler, C. D., Chandra, M., Chang, D., Chankin, C. S., Chapman, A., Chapman, I. T., Chernyshova, S. C., Chitarin, M., Giuseppe, Ciraolo, Ciric, G., Citrin, D., Clairet, J., Clark, F., Clark, E., Clarkson, M., Clatworthy, R., Clements, D., Cleverly, C., Coad, M., Coates, J. P., Cobalt, P. A., Coccorese, A., Cocilovo, V., Coda, V., Coelho, S., Coenen, R., Coffey, J. W., Colas, I., Collins, L., Conka, S., Conroy, D., Conway, S., Coombs, N., Cooper, D., Corradino, S. R., Corre, C., Corrigan, Y., Cortes, G., Coster, S., Couchman, D., Cox, A. S., Craciunescu, M. P., Cramp, T., Craven, S., Crisanti, R., Croci, F., Croft, G., Crombã©, D., Crowe, K., Cruz, R., Cseh, N., Cufar, G., Cullen, A., Curuia, A., Czarnecka, M., Dabirikhah, A., Dalgliesh, H., Dalley, P., Dankowski, S., Darrow, J., Davies, D., Davis, O., Day, W., Day, C., I. E., Bock, De, Castro, De, De La Cal, De La Luna, Masi, De, Pablos, De, J. L., Temmerman, De, Tommasi, De, Vries, De, Deakin, P., Deane, K., Degli, Agostini, Dejarnac, F., Delabie, R., Den, Harder, Dendy, N., Denis, R. O., Denner, J., Devaux, P., Devynck, S., Maio, Di, Siena, Di, Troia, Di, Dinca, C., D'Inca, P., Ding, R., Dittmar, B., Doerk, T., Doerner, H., Donnã©, R. P., Dorling, T., S. E., Dormido, Canto, Doswon, S., Douai, S., Doyle, D., Drenik, P. T., Drewelow, A., Drews, P., Duckworth, P., Dumont, P. h., Dumortier, R., Dunai, P., Dunne, D., Äžuran, M., Durodiã©, I., Dutta, F., Duval, P., Dux, B. P., Dylst, R., Dzysiuk, K., Edappala, N., Edmond, P. V., Edwards, J., Edwards, A. M., Eich, J., Ekedahl, T. h., Jorf, El, Elsmore, R., Enachescu, C. G., Ericsson, M., Eriksson, G., Eriksson, F., Eriksson, J., Esposito, L. G., Esquembri, B., Esser, S., Esteve, H. G., Evans, D., Evans, B., Evison, G. E., Ewart, G., Fagan, G. D., Faitsch, D., Falie, M., Fanni, D., Fasoli, A., Faustin, A., Fawlk, J. M., Fazendeiro, N., Fedorczak, L., Felton, N., Fenton, R. C., Fernades, K., Fernandes, A., Ferreira, H., Fessey, J., Fã©vrier, J. A., Ficker, O., Field, O., Fietz, A., Figueiredo, S., Figueiredo, A., Fil, J., Finburg, A., Firdaouss, P., Fischer, M., Fittill, U., Fitzgerald, L., Flammini, M., Flanagan, D., Fleming, J., Flinders, C., Fonnesu, K., Fontdecaba, N., Formisano, J. M., Forsythe, A., Fortuna, L., Fortuna, Zalesna, Fortune, E., Foster, M., Franke, S., Franklin, T., Frasca, T., Frassinetti, M., Freisinger, L., Fresa, M., Frigione, R., Fuchs, D., Fuller, V., Futatani, D., Fyvie, S., Gã¡l, J., Galassi, K., Gaå‚azka, D., Galdon, Quiroga, Gallagher, J., Gallart, J., Galvã¡o, D., Gao, R., Gao, X., Garcia, Y., Garcia, Carrasco, Garcã¬a, Muã±oz, Gardarein, M., Garzotti, J. L., Gaudio, L., Gauthier, P., Gear, E., Gee, D. F., Geiger, S. J., Gelfusa, B., Gerasimov, M., Gervasini, S., Gethins, G., Ghani, M., Ghate, Z., Gherendi, M., Giacalone, M., Giacomelli, J. C., Gibson, L., Giegerich, C. S., Gil, T., Gil, C., Gilligan, L., Gin, S., Giovannozzi, D., Girardo, E., Giroud, J. B., Giruzzi, C., Gerardo, Glã¶ggler, Godwin, S., Goff, J., Gohil, J., Goloborod'Ko, P., Gomes, V., Goncalves, R., Goniche, B., Goodliffe, M., Goodyear, M., Gorini, A., Gosk, G., Goulding, M., Goussarov, R., Gowland, A., Graham, R., Graham, B., Graves, M. E., Grazier, J. P., Grazier, N., Green, P., Greuner, N. R., Grierson, H., Griph, B., Grisolia, F. S., Grist, C., Groth, D., Grove, M., Grundy, R., Grzonka, C. N., Guard, J., Guã©rard, D., Guillemaut, C., Guirlet, C., Gurl, R., Utoh, C., Hackett, H. H., Hacquin, L. J., Hagar, S., Hager, A., Hakola, R., Halitovs, A., Hall, M., S. J., Hallworth, Cook, S. P., Hamlyn, Harris, Hammond, C., Harrington, K., Harrison, C., Harting, J., Hasenbeck, D., Hatano, F., Hatch, Y., Haupt, D. R., Hawes, T. D. V., Hawkes, J., Hawkins, N. C., Hawkins, J., Haydon, P., Hayter, P. W., Hazel, N., Heesterman, S., Heinola, P. J. L., Hellesen, K., Hellsten, C., Helou, T., Hemming, W., Hender, O. N., Henderson, T. C., Henderson, M., Henriques, S. S., Hepple, R., Hermon, D., Hertout, G., Hidalgo, P., Highcock, C., Hill, E. G., Hillairet, M., Hillesheim, J., Hillis, J., Hizanidis, D., Hjalmarsson, K., Hobirk, A., Hodille, J., Hogben, E., Hogeweij, C. H. A., Hollingsworth, G. M. D., Hollis, A., Homfray, S., Horã¡äek, D. A., Hornung, J., Horton, G., Horton, A. R., Horvath, L. D., Hotchin, L., Hough, S. P., Howarth, M. R., Hubbard, P. J., Huber, A., Huddleston, V., Hughes, T. M., Huijsmans, M., Hunter, G. T. A., Huynh, C. L., Hynes, P., Iglesias, A. M., Imazawa, D., Imbeaux, N., Imrã¬å¡ek, F., Incelli, M., Innocente, M., Irishkin, P., Ivanova, Stanik, Jachmich, I., Jacobsen, S., Jacquet, A. S., Jansons, P., Jardin, J., Jã¤rvinen, A., Jaulmes, A., Jednorã³g, F., Jenkins, S., Jeong, I., Jepu, C., Joffrin, I., Johnson, E., Johnson, R., Johnston, T., Jane, Joita, Jones, L., Jones, G., Hoshino, T. T. C., Kallenbach, K. K., Kamiya, A., Kaniewski, K., Kantor, J., Kappatou, A., Karhunen, A., Karkinsky, J., Karnowska, D., Kaufman, I., Kaveney, M., Kazakov, G., Kazantzidis, Y., Keeling, V., Keenan, D. L., Keep, T., Kempenaars, J., Kennedy, M., Kenny, C., Kent, D., Kent, J., Khilkevich, O. N., Kim, E., Kim, H. T., Kinch, H. S., King, A., King, C., King, D., Kinna, R. F., Kiptily, D. J., Kirk, V., Kirov, A., Kirschner, K., Kizane, A., Klepper, G., Klix, C., Knight, A., Knipe, P., Knott, S. J., Kobuchi, S., Kã¶chl, T., Kocsis, F., Kodeli, G., Kogan, I., Kogut, L., Koivuranta, D., Kominis, S., Kã¶ppen, Y., Kos, M., Koskela, B., Koslowski, T., Koubiti, H. R., Kovari, M., Kowalska, Strzè©ciwilk, Krasilnikov, E., Krasilnikov, A., Krawczyk, V., Kresina, N., Krieger, M., Krivska, K., Kruezi, A., Ksiaå¼ek, U., Kukushkin, I., Kundu, A., Kurki, Suonio, Kwak, T., Kwiatkowski, S., Kwon, R., Laguardia, O. J., Lahtinen, L., Laing, A., Lam, A., Lambertz, N., Lane, H. T., Lang, C., Lanthaler, P. T., Lapins, S., Lasa, J., Last, A., Łaszyå„ska, J. R., Lawless, E., Lawson, R., Lawson, A., Lazaros, K. D., Lazzaro, A., Leddy, E., Lee, J., Lefebvre, S., Leggate, X., Lehmann, H. J., Lehnen, J., Leichtle, M., Leichuer, D., Leipold, P., Lengar, F., Lennholm, I., Lerche, M., Lescinskis, E., Lesnoj, A., Letellier, S., Leyland, E., Leysen, M., Li, W., Liang, L., Likonen, Y., Linke, J., Linsmeier, J., Lipschultz, C. h., Liu, B., Liu, G., Schiavo, Lo, Loarer, V. P., Loarte, T., Lobel, A., Lomanowski, R. C., Lomas, B., Lã¶nnroth, P. J., Lã³pez, J., J. M., Lã³pez, Razola, Lorenzini, J., Losada, R., Lovell, U., Loving, J. J., Lowry, A. B., Luce, C., Lucock, T., Lukin, R. M. A., Luna, A., Lungaroni, C., Lungu, M., Lungu, C. P., Lunniss, M., Lupelli, A., Lyssoivan, I., Macdonald, A., Macheta, N., Maczewa, P., Magesh, K., Maget, B., Maggi, P., Maier, C., Mailloux, H., Makkonen, J., Makwana, T., Malaquias, R., Malizia, A., Manas, A., Manning, P., Manso, A., Mantica, M. E., Mantsinen, P., Manzanares, M., Maquet, A., Marandet, P. h., Marcenko, Y., Marchetto, N., Marchuk, C., Marinelli, O., Marinucci, M., Markoviä, M., Marocco, T., Marot, D., Marren, L., Marshal, C. A., Martin, R., Martin, A., Martìn De Aguilera, Martã¬nez, A., F. J., Martã¬n, Solã¬s, Martynova, J. R., Maruyama, Y., Masiello, S., Maslov, A., Matejcik, M., Mattei, S., Matthews, M., Maviglia, G. F., Mayer, F., Mayoral, M., M. L., May, Smith, Mazon, T., Mazzotta, D., Mcadams, C., Mccarthy, R., Mcclements, P. J., Mccormack, K. G., Mccullen, O., Mcdonald, P. A., Mcintosh, D., Mckean, S., Mckehon, R., Meadows, J., Meakins, R. C., Medina, A., Medland, F., Medley, M., Meigh, S., Meigs, S., Meisl, A. G., Meitner, G., Meneses, S., Menmuir, L., Mergia, S., Merrigan, K., Mertens, I. R., Meshchaninov, P. h., Messiaen, S., Meyer, A., Mianowski, H., Michling, S., Middleton, Gear, Miettunen, D., Militello, J., Militello, Asp, Miloshevsky, E., Mink, G., Minucci, F., Miyoshi, S., Mlynã¡å™, Y., Molina, J., Monakhov, D., Moneti, I., Mooney, M., Moradi, R., Mordijck, S., Moreira, S., Moreno, L., Moro, R., Morris, F., Morris, A. W., Moser, J., Mosher, L., Moulton, S., Murari, D., Muraro, A., Murphy, A., Asakura, S., N. N., Na, Nabais, Y. S., Naish, F., Nakano, R., Nardon, T., Naulin, E., Nave, V., Nedzelski, M. F. F., Nemtsev, I., Nespoli, G., Neto, F., Neu, A., Neverov, R., Newman, V. S., Nicholls, M., Nicolas, K. J., Nielsen, T., Nielsen, A. H., Nilsson, P., Nishijima, E., Noble, D., Nocente, C., Nodwell, M., Nordlund, D., Nordman, K., Nouailletas, H., Nunes, R., Oberkofler, I., Odupitan, M., Ogawa, T., O'Gorman, M. T., Okabayashi, T., Olney, M., Omolayo, R., O'Mullane, O., Ongena, M., Orsitto, J., Orszagh, F., Oswuigwe, J., Otin, B. I., Owen, R., Paccagnella, A., Pace, R., Pacella, N., Packer, D., Page, L. W., Pajuste, A., Palazzo, E., Pamela, S., Panja, S., Papp, S., Paprok, P., Parail, R., Park, V., Parra, Diaz, Parsons, F., Pasqualotto, M., Patel, R., Pathak, A., Paton, S., Patten, D., Pau, H., Pawelec, A., Paz, Soldan, Peackoc, C., Pearson, A., Pehkonen, I. J., Peluso, S. P., Penot, E., Pereira, C., Pereira, A., Pereira, Puglia, P. P., Perez Von Thun, Peruzzo, C., Peschanyi, S., Peterka, S., Petersson, M., Petravich, P., Petre, G., Petrella, A., Petrå¾ilka, N., Peysson, V., Pfefferlã©, Y., Philipps, D., Pillon, V., Pintsuk, M., Piovesan, G., Pires Dos Reis, Piron, Lidia, Pironti, A., Pisano, F., Pitts, R., Pizzo, F., Plyusnin, V., Pomaro, N., Pompilian, O. G., Pool, P. J., Popovichev, S., Porfiri, M. T., Porosnicu, C., Porton, M., Possnert, G., Potzel, S., Powell, T., Pozzi, J., Prajapati, V., Prakash, R., Prestopino, G., Price, D., Price, M., Price, R., Prior, P., Proudfoot, R., Pucella, G., Puglia, P., Puiatti, M. E., Pulley, D., Purahoo, K., Pã¼tterich, T. h., Rachlew, E., Rack, M., Ragona, R., Rainford, M. S. J., Rakha, A., Ramogida, G., Ranjan, S., Rapson, C. J., Rasmussen, J. J., Rathod, K., Rattã¡, G., Ratynskaia, S., Ravera, G., Rayner, C., Rebai, M., Reece, D., Reed, A., Rã©fy, D., Regan, B., Regaã±a, J., Reich, M., Reid, N., Reimold, F., Reinhart, M., Reinke, M., Reiser, D., Rendell, D., Reux, C., Reyes, Cortes, Reynolds, S. D. A., Riccardo, S., Richardson, V., Riddle, N., Rigamonti, K., Rimini, D., Risner, F. G., Riva, J., Roach, M., Robins, C., Robinson, R. J., Robinson, S. A., Robson, T., Roccella, D. W., Rodionov, R., Rodrigues, R., Rodriguez, P., Rohde, J., Romanelli, V., Romanelli, F., Romanelli, M., Romazanov, S., Rowe, J., Rubel, S., Rubinacci, M., Rubino, G., Ruchko, G., Ruiz, L., Ruset, M., Rzadkiewicz, C., Saarelma, J., Sabot, S., Safi, R., Sagar, E., Saibene, P., Saint, Laurent, Salewski, F., Salmi, M., Salmon, A., Salzedas, R., Samaddar, F., Samm, D., Sandiford, U., Santa, D., Santala, P., Santos, M. I. K., Santucci, B., Sartori, A., Sartori, F., Sauter, R., Scannell, O., Schlummer, R., Schmid, T., Schmidt, K., Schmuck, V., Schneider, S., Schã¶pf, M., Schwã¶rer, K., Scott, D., Sergienko, S. D., Sertoli, G., Shabbir, M., Sharapov, A., Shaw, S. E., Shaw, A., Sheikh, R., Shepherd, H., Shevelev, A., Shumack, A., Sias, A., Sibbald, G., Sieglin, M., Silburn, B., Silva, S., Silva, A., Simmons, C., Simpson, P. A., Simpson, Hutchinson, Sinha, J., Sipilã¤, A., Sips, S. K., Sirã©n, A. C. C., Sirinelli, P., Sjã¶strand, A., Skiba, H., Skilton, M., Slabkowska, R., Slade, K., Smith, B., Smith, N., Smith, P. G., Smith, R., Smithies, T. J., Snoj, M., Soare, L., Solano, S., Somers, E. R., Sommariva, A., Sonato, C., Piergiorgio, Sopplesa, Sousa, A., Sozzi, J., Spagnolo, C., Silvia, Spelzini, Spineanu, T., Stables, F., Stamatelatos, G., Stamp, I., Staniec, M. F., Stankå«nas, P., Stan, Sion, Stead, C., Stefanikova, M. J., Stepanov, E., Stephen, I., Stephen, A. V., Stevens, M., Stevens, A., Strachan, B. D., Strand, J., Strauss, P., Strã¶m, H. R., Stubbs, P., Studholme, G., Subba, W., Summers, F., Svensson, H. P., Åšwiderski, J., Szabolics, Å. ., Szawlowski, T., Szepesi, M., Suzuki, G., Tã¡l, T. T., Tala, B., Talbot, T., Talebzadeh, A. R., Taliercio, S., Cesare, Tamain, Tame, P., Tang, C., Tardocchi, W., Taroni, M., Taylor, L., Taylor, D., Tegnered, K. A., Telesca, D., Teplova, G., Terranova, N., David, Testa, Tholerus, D., Thomas, E., Thomas, J., Thomas, J. D., Thompson, P., Thompson, A., Thompson, C. A., Thorne, V. K., Thornton, L., Thrysã¸e, A., Tigwell, A. S., Tipton, P. A., Tiseanu, N., Tojo, I., Tokitani, H., Tolias, M., Tomeå¡, P., Tonner, M., Towndrow, P., Trimble, M., Tripsky, P., Tsalas, M., Tsavalas, M., Tskhakaya, Jun, Turner, D., Turner, I., Turnyanskiy, M. M., Tvalashvili, M., Tyrrell, G., Uccello, S. G. J., Abidin, Ul, Uljanovs, Z., Ulyatt, J., Urano, D., Uytdenhouwen, H., Vadgama, I., Valcarcel, A. P., Valentinuzzi, D., Valisa, M., Vallejos, Olivares, Valovic, P., Van De Mortel, Van, Eester, Van, Renterghem, Van, Rooij, Varje, G. J., Varoutis, J., Vartanian, S., Vasava, S., Vasilopoulou, K., Vega, T., Verdoolaege, J., Verhoeven, G., Verona, R., Verona, Rinati, Veshchev, G., Vianello, E., Vicente, N., Viezzer, J., Villari, E., Villone, S., Vincenzi, F., Pietro, Vinyar, Viola, I., Vitins, B., Vizvary, A., Vlad, Z., Voitsekhovitch, M., Vondrã¡äek, I., Vora, P., Vu, N., Pires De Sa, Wakeling, W. W., Waldon, B., Walkden, C. W. F., Walker, N., Walker, M., Walsh, R., Wang, M., Wang, E., Warder, N., Warren, S., Waterhouse, R. J., Watkins, J., Watts, N. W., Wauters, C., Weckmann, T., Weiland, A., Weisen, J., Weiszflog, H., Wellstood, M., West, C., Wheatley, A. T., Whetham, M. R., Whitehead, S., Whitehead, A. M., Widdowson, B. D., Wiesen, A. M., Wilkinson, S., Williams, J., Wilson, M., Wilson, A. R., Wilson, D. J., Wilson, H. R., Wischmeier, J., Withenshaw, M., Withycombe, G., Witts, A., Wood, D. M., Wood, D., Woodley, R., Wray, C., Wright, S., Wright, J., J. C., Wu, Wukitch, J., Wynn, S., Xu, A., Yadikin, T., Yanling, D., Yao, W., Yavorskij, L., Yoo, V., Young, M. G., Young, C., Young, D., Young, I. D., Zacks, R., Zagorski, J., Zaitsev, R., Zanino, F. S., Zarins, R., Zastrow, A., Zerbini, K. D., Zhang, M., Zhou, W., Zilli, Y., Zoita, E., Zoletnik, V., Zychor, S., I, and JET Contributors

Subjects
Nuclear and High Energy Physics, Jet (fluid), Hydrogen, Plasma parameters, JET ITER-like wall, Divertor, Nuclear engineering, chemistry.chemical_element, Condensed Matter Physics, 01 natural sciences, fuel retention, 010305 fluids & plasmas, material migration, chemistry, Sputtering, visual_art, 0103 physical sciences, visual_art.visual_art_medium, Environmental science, Tile, 010306 general physics
Abstract

Post mortem analyses of JET ITER-Like-Wall tiles and passive diagnostics have been completed after each of the first two campaigns (ILW-1 and ILW-2). They show that the global fuel inventory is still dominated by co-deposition; hence plasma parameters and sputtering processes affecting material migration influence the distribution of retained fuel. In particular, differences between results from the two campaigns may be attributed to a greater proportion of pulses run with strike points in the divertor corners, and having about 300 discharges in hydrogen at the end of ILW-2. Recessed and remote areas can contribute to fuel retention due to the larger areas involved, e.g. recessed main chamber walls, gaps in castellated Be main chamber tiles and material migration to remote divertor areas. The fuel retention and material migration due to the bulk W Tile 5 during ILW-1 are presented. Overall these tiles account for only a small percentage of the global accountancy for ILW-1.

Published
2017
Full Text
View/download PDF

16. Safeguarding adults

Author

Richardson, V.

Subjects
Adult, Perioperative Nursing, Humans, General Medicine, Patient Safety, Vulnerable Populations, State Medicine, United Kingdom
Abstract

The safeguarding of patients is a key concern for all health and care professionals. Research shows that more instances of unacceptable care are likely to occur due to an increase in population of those deemed to be vulnerable. Increasing professionals' awareness, knowledge and understanding of safeguarding and of the systems in place for reporting concerns is essential for best practice and for protecting patients and their families.

Published
2014

18. The Laser-assisted photoelectric effect of He, Ne, Ar and Xe in intense extreme ultraviolet and infrared laser fields.

Author

Hayden, P., Dardis, J., Hough, P., Richardson, V., Kennedy, E. T., Costello, J. T., Düsterer, S., Redlin, H., Feldhaus, J., Li, W. B., Cubaynes, D., and Meyer, M.

Subjects
PHOTOELECTRIC effect, INFRARED lasers, FEMTOSECOND pulses, KRYPTON, PHOTOELECTRON spectra, APPROXIMATION theory
Abstract

In this paper, we report results on two-colour above-threshold ionisation, where extreme ultraviolet pulses of femtosecond duration were synchronised to intense infrared laser pulses of picosecond duration, in order to study the laser-assisted photoelectric effect of atomic helium, neon, krypton and xenon which leads to the appearance of characteristic sidebands in the photoelectron spectra. The observed trends are found to be well described by a simple model based on the soft-photon approximation, at least for the relatively low optical intensities of up toemployed in these early experiments. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

19. Stability of Sickle Versus Normal Erythrocytes to Osmolality Changes: Implications for Fluid Replacement.

Author

Richardson, V. M., Wollen, K., and Anong, W. A.

Abstract

Fluid replacement to correct electrolyte imbalances, hence osmolality in hospitalized patients is common, especially in the intensive care unit. Osmolality changes impact the proper functioning of the cells. Massive water intake leads to hyponatremia, edema of the brain and lungs, and ultimately death when serum sodium decreases to 216-mOsM. Red blood cells remain stable and intact at 216-mOsM. We previously demonstrated that 190-mOsM is the minimum osmolality threshold for typical red cell hemolysis. Here, we investigated the hemolysis threshold for abnormal red cells such as sickle red cells. Although both normal and sickle red cells show a similar "S-shaped curve" hemolysis pattern, we found that sickle erythrocytes are more resilient to changes in osmolality. The threshold for hemolysis for sickle red blood cells is 170-mOsM, more resistant (less fragile) than the 190-mOsM for normal red cells. Furthermore, we demonstrated that the hemoglobin content retained in hemolyzed sickle cells was significantly lower than that of normal red cells in a hypotonic solution of the same osmolality. This finding provides insights into how sickle cell patients respond to changes in serum osmolality during dehydration and hydration states to slow or stop the sickling process and alleviate their pain. Extra fluids are routinely administered to sickle cell patients, irrespective of the hydration status during treatment. Electrolyte imbalance and fluid volume replacements during acute episodes of pain management/treatment for sickle cell patients may significantly benefit African American individuals who disproportionately are highly impacted by the disease. [ABSTRACT FROM AUTHOR]

Published
2021

20. Potential of liposomes as drug-carriers in cancer chemotherapy: a review.

Author

Kaye, S., Richardson, V., Kaye, S B, and Richardson, V J

Subjects
ANTINEOPLASTIC agents, ANIMALS, HAMSTERS, ARTIFICIAL membranes, TUMORS
Abstract

Liposomes are bilayered phospholipid vesicles that have been proposed as vehicles for the selective delivery of cytotoxic drugs into malignant cells. In vitro and in vivo experiments have indicated that the activity of a range of drugs or their active metabolites may be enhanced by encapsulation in liposomes, particularly when used against drug-resistant tumours. Moreover, liposomal entrapment certainly has a marked effect on the tissue distribution and rates of clearance of cytotoxic drugs, and also appears to reduce their toxicity in most cases. However, in both animal and patient studies, the major sites of uptake following IV administration consistently appear as the liver and spleen. Preferential tumour uptake has therefore not yet been achieved, althrough a degree of localization of liposomal labels can be demonstrated in the vicinity of experimental animal tumours in certain circumstances. Liposomes may have a future role in cancer chemotherapy, but much laboratory work remains to be done before clinical application can be considered. [ABSTRACT FROM AUTHOR]

Published
1979
Full Text
View/download PDF

21. Dichroism in the above-threshold two-colour photoionization of singly charged neon.

Author

Richardson, V., Li, W. B., Kelly, T. J., Costello, J. T., Nikolopoulos, L. A. A., Düsterer, S., Cubaynes, D., and Meyer, M.

Subjects
*DICHROISM, *PHOTOIONIZATION, *NEON, *IONIZATION of gases, *ULTRAVIOLET radiation, *FREE electron lasers
Abstract

In this work we report on the ionization of a gaseous neon target by combining extreme ultraviolet (XUV) radiation from the Free Electron Laser in Hamburg with an intense synchronized optical laser. Applying energy-resolved photoelectron spectroscopy, the dependence of the electrons ejected from singly charged neon (Ne+) on the relative polarization of the XUV and optical laser fields was investigated. The electron spectra exhibit a strong dependence on the degree of the relative orientation of the linear polarization vectors. A quantitative analysis was undertaken using multichannel time-dependent perturbation theory in order to reproduce the magnitude of the ejected low kinetic energy electrons as a function of the relative polarization directions and explicitly taking into account the influence of the residual Ne2+ cores (1D,3P). It is concluded that the variation of the photoelectron spectrum with the deviation of XUV and optical field directions is mainly related to the different responses of the magnetic substates of the ejected electrons in their interaction with the laser field. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

22. Atomic photoionization in combined intense XUV free-electron and infrared laser fields.

Author

Radcliffe, P., Arbeiter, M., Li, W. B., Düsterer, S., Redlin, H., Hayden, P., Hough, P., Richardson, V., Costello, J. T., Fennel, T., and Meyer, M.

Subjects
PHOTOIONIZATION, ELECTRONS, LASERS, ATOMS, PHYSICS research
Abstract

We present a systematic study of the photoionization of noble gas atoms exposed simultaneously to ultrashort (20 fs) monochromatic (1-2% spectral width) extreme ultraviolet (XUV) radiation from the Free-electron Laser in Hamburg (FLASH) and to intense synchronized near-infrared (NIR) laser pulses with intensities up to about 1013Wcm-2. Already at modest intensities of the NIR dressing field, the XUV-induced photoionization lines are split into a sequence of peaks due to the emission or absorption of several additional infrared photons. We observed a plateau-shaped envelope of the resulting sequence of sidebands that broadens with increasing intensity of the NIR dressing field. All individual lines of the nonlinear two-color ionization process are Stark-shifted, reflecting the effective intensity of the NIR field. The intensity-dependent cutoff energies of the sideband plateau are in good agreement with a classical model. The detailed structure of the two-color spectra, including the formation of individual sidebands, the Stark shifts and the contributions beyond the classical cut-off, however, requires a fully quantum mechanical description, as is demonstrated with time-dependent quantum calculations in single-active electron approximation. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

23. Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser.

Author

Düsterer, S., Radcliffe, P., Bostedt, C., Bozek, J., Cavalieri, A. L., Coffee, R., Costello, J. T., Cubaynes, D., DiMauro, L. F., Ding, Y., Doumy, G., Grüner, F., Helml, W., Schweinberger, W., Kienberger, R., Maier, A. R., Messerschmidt, M., Richardson, V., Roedig, C., and Tschentscher, T.

Subjects
FEMTOSECOND lasers, FREE electron lasers, ELECTRON spectroscopy, SPECTRUM analysis, ELECTRON emission
Abstract

Two-color, single-shot time-of-flight electron spectroscopy of atomic neon was employed at the Linac Coherent Light Source (LCLS) to measure laser-assisted Auger decay in the x-ray regime. This x-ray-optical cross-correlation technique provides a straightforward, non-invasive and online means of determining the duration of femtosecond (>40 fs) x-ray pulses. In combination with a theoretical model of the process based on the softphoton approximation, we were able to obtain the LCLS pulse duration and to extract a mean value of the temporal jitter between the optical pulses from a synchronized Ti-sapphire laser and x-ray pulses from the LCLS. We find that the experimentally determined values are systematically smaller than the length of the electron bunches. Nominal electron pulse durations of 175 and 75 fs, as provided by the LCLS control system, yield x-ray pulse shapes of 120± 20 fs full-width at half-maximum (FWHM) and an upper limit of 40±20 fs FWHM, respectively. Simulations of the free-electron laser agree well with the experimental results. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

25. A Case of Amyoplasia in a Monochorionic Twin Pregnancy: A Sequela from Twin-Twin Transfusion Syndrome?

Author

Wong, H. S., Kidd, A., Zuccollo, J., Parker, S., Richardson, V., Tait, J., and Pringle, K. C.

Subjects
TWINS, PREGNANCY complications, DURATION of pregnancy, FETAL abnormalities, PRENATAL diagnosis
Abstract

Objective: To present and discuss the sonographic and clinical findings in one twin of a monochorionic pair affected by amyoplasia. Methods: On ultrasound examination at 21 weeks in a monochorionic twin pregnancy, twin I was smaller, hydropic, with multiple contractures consistent with amyoplasia and oligohydramnios. Twin II was anatomically normal with polyhydramnios. Results: The twins were delivered at 28 weeks’ gestation. The clinical findings were consistent with twin-twin transfusion syndrome (TTTS). Conclusion: It is postulated that TTTS may be a causative factor in the excessive incidence of amyoplasia in monozygotic twin pregnancy. Copyright © 2009 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

27. Upgrading Coal Using a Pneumatic Density-Based Separator.

Author

Honaker, R. Q., Saracoglu, M., Thompson, E., Bratton, R., Luttrell, G. H., and Richardson, V.

Subjects
COAL, PNEUMATIC machinery, MACHINE separators, SEPARATION (Technology), FLUID power technology, CHEMICAL engineering equipment
Abstract

The potential of dry cleaning coal of varying ranks using a pneumatic table concentrator has been evaluated as part of an ongoing investigation. The evaluation has been performed at several sites throughout the United States where coal is extracted from surface open cast, highwall and underground operations as well as from coarse reject. The treated coals varied in feed ash content (i.e., 7-70%). Regardless of the mineral matter type, pure rock removal into the reject stream was achieved in all applications with little coal loss. Field data obtained when treating 50 × 6 mm run-of-mine bituminous coal indicate that 70-90% of the >2.0 Relative Density (RD) rock can be rejected. As a result, a clean product having acceptable market quality was generated from several coal sources including lignite, sub-bituminous, and bituminous coals. This article provides an overview of data from recent field testing of the dry air table technology and discusses the potential implementation strategy for the various sites evaluated. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

28. Palivizumab prophylaxis of respiratory syncytial virus infection in high-risk infants.

Author

Vogel, AM, Lennon, DR, Broadbent, R, Byrnes, CA, Grimwood, K, Mildenhall, L, Richardson, V, Rowley, S, Vogel, A M, Lennon, D R, and Byrnes, C A

Subjects
RESPIRATORY syncytial virus, PREMATURE infants
Abstract

Palivizumab prophylaxis significantly reduces hospitalization for respiratory syncytial virus (RSV) disease in preterm infants. However, palivizumab is very expensive. Data from a New Zealand cost-effectiveness analysis were considered by representatives of the Infectious Diseases and Immunisation, Fetus and Newborn, and Respiratory Committees of the Paediatric Society of New Zealand. Prophylaxis in all high-risk groups was associated with net cost. The consensus panel recommends that the priority for palivizumab be given to babies discharged on home oxygen with chronic lung disease, followed by babies born at 28 weeks or less gestation. [ABSTRACT FROM AUTHOR]

Published
2002
Full Text
View/download PDF

29. Gender and racial inequities in retirement resources.

Author

Gregoire TK, Kilty K, and Richardson V

Abstract

Two waves of a Social Security Beneficiary survey were analyzed to consider differences in the retirement resources of women and men based on marital status and race/ethnicity. Despite increased workforce participation the economic situation of single women, including white women, worsened over time. A bifurcation in retirement resources was found, with men relying more on private income sources and women depending more on Social Security. Current retirement policies based on privatization will continue to adversely impact women who work at low-paying jobs, receive lower wages, and live longer than men. [ABSTRACT FROM AUTHOR]

Published
2002
Full Text
View/download PDF

30. Feminist gerontology and the life course: policy, research and teaching issues.

Author

Hooyman N, Browne CV, Ray R, and Richardson V

Abstract

Feminist gerontology is grounded in feminist theory and critical gerontology and focuses on power relations and intersecting oppressions across the life course. Analyses that incorporate a feminist perspective broaden our understanding of aging, moving beyond a singular focus on gender to a broader focus on multiple aspects of diversity, including privilege, inequality, and interdependence. In this article, we identify and discuss the central tenets of a feminist gerontological perspective, focusing on the lives of aging women in terms of research and policy issues regarding caregiving, work, and retirement. We suggest alternative and expanded research and teaching methods that counter feminist blind spots on age, as well as gerontology's blind spots where older women are concerned. [ABSTRACT FROM AUTHOR]

Published
2002
Full Text
View/download PDF

31. Score of neonatal acute physiology as a measure of illness severity in mechanically ventilated term babies.

Author

Sutton, L, Bajuk, B, Berry, G, Sayer, G P, Richardson, V, and Henderson-Smart, D J

Subjects
NEONATAL intensive care, INFANT physiology
Abstract

Unlabelled: The objectives of this population-based, case-control cohort study were to describe the use of the score of neonatal acute physiology (SNAP) as a measure of illness severity in mechanically ventilated term infants, to compare the SNAP scores of the different diagnostic groups, to assess the contribution of the individual SNAP items to the overall SNAP severity category, and to assess SNAP as a predictor of mortality and neonatal intensive care unit (NICU) resource utilization (length of stay (LOS) and duration of ventilation (LOV)). The study was carried out in Sydney and four large rural/urban health areas in New South Wales, Australia. The subjects--182 singleton term infants with no major congenital anomalies--were admitted to a tertiary NICU for mechanical ventilation. Highest mean (SD) SNAP scores occurred in infants ventilated for meconium aspiration (18 (9)), and perinatal asphyxia (17 (9)), compared with pulmonary hypertension (14 (6)) and respiratory distress syndrome (13 (5)). The individual SNAP items that contributed most to SNAP moderate and severe categories were blood gas items, creatinine, urine output, blood glucose, and seizures. Predictors of death included total SNAP score, individual SNAP items (urine output, pH, Oxygenation Index (OI)), 5-min Apgar, gestational age >40 wk, growth restriction, and ventilation for asphyxia/apnoea. SNAP alone was not a good predictor of NICU resource utilization (LOS, LOV) in term infants. The best predictors were LOV for LOS, and a combination of SNAP and the reason for ventilation for LOV.Conclusion: SNAP is a useful measure of severity of illness in sick term neonates admitted to a tertiary NICU. This measure can be used to predict neonatal morbidity and mortality, and to some extent NICU resource utililization. [ABSTRACT FROM AUTHOR]

Published
2002
Full Text
View/download PDF

32. Credentialing & professionalism in pediatric nursing. What do pediatric nurses do? Results of the role delineation study in Canada and the United States.

Author

Barnsteiner JH, Wyatt JS, and Richardson V

Abstract

The National Certification Board of Pediatric Nurse Practitioners and Nurses (NCBPNP/N) is responsible for developing, maintaining, and administering the general pediatric nursing certification examination. A key feature is to ensure that the template used to construct the examination is formulated on the basis of current practice in pediatric nursing. Changes in health care require that a formal examination be conducted every 7-10 years to assess current practice and revise the test specifications as indicated. The purpose of this study was to identify the roles and responsibilities of the general pediatric nurse as a first step in continuing the job-related certification examination program. The purpose was to also analyze areas of knowledge, skill, and ability for pediatric nurses. [ABSTRACT FROM AUTHOR]

Published
2002

33. Do very sick neonates born at term have antenatal risks? 1. Infants ventilated primarily for problems of adaptation to extra-uterine life.

Author

Sutton, Lee, Sayer, Geoffrey P., Bajuk, Barbara, Richardson, Valerie, Berry, Geoffrey, Henderson-Smart, David J., Sutton, L, Sayer, G P, Bajuk, B, Richardson, V, Berry, G, and Henderson-Smart, D J

Subjects
NEONATAL diseases, ASPHYXIA neonatorum, NEONATAL intensive care, ARTIFICIAL respiration, DIABETES complications, CHRONIC kidney failure complications, HYPERTENSION, RESEARCH, THYROID diseases, SUBSTANCE abuse, PREDICTIVE tests, RESEARCH methodology, CASE-control method, NEONATAL intensive care units, EVALUATION research, MEDICAL cooperation, PHYSIOLOGICAL adaptation, SEX distribution, COMPARATIVE studies, PREGNANCY complications, QUESTIONNAIRES, PRENATAL care, INFANT mortality, SYSTEMIC lupus erythematosus, LABOR complications (Obstetrics), LONGITUDINAL method, REPRODUCTIVE history, DISEASE complications
Abstract

Aims: 1. Ascertain antenatal and intrapartum risk factors for term neonates ventilated primarily for 'perinatal asphyxia'. 2. Describe the neonatal morbidity and mortality.Methods: Population-based case control cohort study.Setting: Sydney and four large rural/urban health areas in New South Wales.Subjects: Singleton term infants, no major congenital anomaly: subset of 83 infants ventilated primarily for 'asphyxia' from 182 cases admitted to a tertiary neonatal intensive care unit (NICU) for mechanical ventilation, 550 randomly selected controls. Outcome. Risk factors for case status by maternal, antenatal, labor, delivery, and combined epochs, adjusted odds ratios (OR), 95 per cent confidence intervals (CI), p < 0.05.Results: Predictors of case status by multivariate epochs: Primigravida (1.8 [1.1, 2.8]), thyroid disease (7.8 [1.1, 57.0]), any antenatal complication (5.1 [3.0, 8.6]), growth restriction (4.2 [1.7, 10.4]), male gender (2.1 [1.3, 3.5]), gestational age >40 weeks (1.9 (1.1, 3.3)), prolonged rupture of membranes (9.7 [1.3, 72.5]), complicated labor (6.6 [3.7, 11.9]), induced labor (2.2 [1.3, 3.9]), prostaglandins 2.46 [1.23, 4.91]), maternal pyrexia (10.8 [2.8, 42.7]), placental hemorrhage in labor (OR 4.24 [1.45, 12.42]), forceps delivery (4.1 [1.9, 8.5]), emergency cesarean section (4.7 [2.6, 8.7]). Twenty case infants (24%) and no control infants died.Conclusions: This study has shown maternal and antepartum risk factors for severe neonatal morbidity in term infants. More centers need to become interested in the term baby, so that a larger multicenter study can further elucidate the heterogeneous causal pathways to term neonatal morbidity. [ABSTRACT FROM AUTHOR]

Published
2001
Full Text
View/download PDF

34. Do very sick neonates born at term have antenatal risks? 2. Infants ventilated primarily for lung disease.

Author

Sutton, Lee, Sayer, Geoffrey P., Bajuk, Barbara, Richardson, Valerie, Berry, Geoffrey, Henderson-Smart, David J., Sutton, L, Sayer, G P, Bajuk, B, Richardson, V, Berry, G, and Henderson-Smart, D J

Subjects
NEWBORN infants, ARTIFICIAL respiration, NEONATAL intensive care, LUNG disease treatment, FETAL macrosomia, RESEARCH, FEVER, PREDICTIVE tests, LUNG diseases, RESEARCH methodology, ARTHRITIS Impact Measurement Scales, CASE-control method, NEONATAL intensive care units, GESTATIONAL age, EVALUATION research, MEDICAL cooperation, LOW birth weight, COMPARATIVE studies, PREGNANCY complications, MATERNAL age, QUESTIONNAIRES, PRENATAL care, GESTATIONAL diabetes, INFANT mortality, LABOR complications (Obstetrics), STATISTICAL sampling, CESAREAN section, ODDS ratio, LONGITUDINAL method, REPRODUCTIVE history, DISEASE complications
Abstract

Aims: 1. Ascertain antenatal and intrapartum risk factors for term neonates ventilated primarily for respiratory problems. 2. Describe the neonatal morbidity and mortality.Methods: Population-based case control cohort study.Setting: Sydney and four large rural/urban Health Areas in New South Wales, 1996.Subjects: Singleton term infants, no major congenital anomaly: subset of 99 infants ventilated primarily for respiratory problems from 182 cases admitted to a tertiary neonatal intensive care unit (NICU) for mechanical ventilation, and 550 randomly selected controls.Outcome: Risk factors for case status by maternal, antenatal, labor, delivery, and combined epochs, adjusted Odds Ratios (OR), 95 per cent Confidence Intervals (CI), p<0.05.Results: Predictors of case status by multivariate epochs: mother's age > or =35 years (1.9 (1.1, 3.2) p=0.03), primigravida (1.8 (1.1, 2.8) p=0.01), any antenatal complication (3.8 (2.4, 5.9) p=0.0001), birth weight < 3rd percentile (3.7 (1.5, 9.1) p=0.006), gestational diabetes (2.9 (1.3, 6.9) p=0.01), maternal pyrexia (6.5 (1.6, 27.2) p=0.01), birth weight >90th percentile (1.8 (1.01, 3.2) p=0.047), gestation 37-38 weeks (2.3 (1.5, 3.6) p=0.0004), forceps (4.4 (2.1, 9.1) p=0.0001), elective cesarean section (3.7 (2.0, 6.5) p=0.0001), emergency cesarean section (4.5 (2.4, 8.4) p=0.0001). Case mortality rate was 5 per cent.Conclusion: The pathways to neonatal respiratory morbidity in term infants are multifactorial. Several areas which warrant more in-depth study are: elective cesarean section at 37-38 weeks gestation, fetal growth restriction, macrosomia and the pattern of in-utero growth, maternal weight gain during pregnancy, gestational diabetes, pyrexia in labor and the role of chorioamnionitis. [ABSTRACT FROM AUTHOR]

Published
2001
Full Text
View/download PDF

35. Yeast opsonization in newborn infants and its relationship to parental atopy.

Author

Richardson, V. F., Larcher, V. F., and Price, J. F.

Subjects
*NEONATOLOGY, *NEWBORN infants, *IMMUNODEFICIENCY, *IMMUNITY, *YEAST, *SERUM
Abstract

Sera from 30 of 303 (99"/) unselected term newborn infants were deficient in their ability to opsonize heat-killed baker's yeasts, an incidence which is almost double that seen in adults. Genetic influence is important in some since the mothers of 10 infants with defective opsonisation showed the same defect, but it was not related to the sex or race of the infant or to the atopic state of the parents. In others the defect could be due to a functional maturation delay of the complement system, but not to inhibitory factors in neonatal serum since correction of opsonisation was achieved with subopsonizing amounts of normal sera. Significantly more infants had sera with high opsonizing capacity ( > 80% yeasts phagocytosed) when compared with adults; perhaps antibody independent immune mechanisms like this are important in the newborn. This study shows that a common specific immunodeficiency which may predispose to severe infection or atopy can be identified at birth. [ABSTRACT FROM AUTHOR]

Published
1982

36. Retirement intentions among black professionals: Implications for practice with older black adults.

Author

Richardson, V. and Kilty, K.M.

Subjects
*RETIREMENT planning, *AFRICAN American executives, *RETIREMENT
Abstract

Studies the preretirement intentions of black professionals. Insists that the results of this study have important implications for practitioners concerned with more effectively meeting the preretirement and retirement needs of older black adults. Methods; Data analysis; Discussion.

Published
1992
Full Text
View/download PDF

41. A common congenital immunodeficiency predisposing to infection and atopy in infancy.

Author

RICHARDSON, V. F., LARCHER, V. F., and PRICE, J. F.

Abstract

Twenty six infants with a congenital immunodeficiency, characterised by failure of their sera to opsonise heat killed bakers' yeast for phagocytosis by normal polymorphonuclear leucocytes, were studied during infancy to determine the frequency of infection and development of atopy. They were compared with controls, matched prospectively for birth date, sex, parental smoking, and atopy and in whom feeding patterns were similar. In 18 of 26 infants the serum defect persisted at age one year. The incidence of infection and atopy, was appreciably greater in the study group than in controls. The 8 children in whom the defect was transient had a similar incidence of infection but a higher incidence of atopy than controls. Eight of 26 mothers and four of 9 fathers tested also had the serum defect, suggesting a strong genetic component. We support the hypothesis that immunodeficiency predisposes to infection and atopy, and that transient immunodeficiency predisposes to atopy. [ABSTRACT FROM AUTHOR]

Published
1983
Full Text
View/download PDF

44. The prevalence and perception of pain amongst hospital in-patients.

Author

Yates P, Dewar A, Edwards H, Fentiman B, Najman J, Nash R, Richardson V, and Fraser J

Subjects
PAIN management, HOSPITAL patients, CARING
Abstract

The aim of this paper is to describe the prevalence and perceptions of pain and pain management amongst hospital in-patients. A cross-sectional descriptive survey of 205 patients was conducted. Presence and severity of pain was assessed using verbal descriptor and visual analogue scales, and perceptions of pain were assessed using multi-item scales. Although the severity of pain reported was consistent across age groups and clinical areas, women in the study sample were significantly more likely to report high levels of pain than men. Differences in how men and women communicate their pain were observed, with women indicating that they were less willing to ask for help with their pain. Results suggest that pain continues to be an important problem for a large number of men and women in hospital, and that the experience of pain impacts negatively upon their well-being. Gender differences in the experience of and response to pain remain important considerations for clinical nurses who have major responsibilities for the management of pain in hospitalized patients. [ABSTRACT FROM AUTHOR]

Published
1998
Full Text
View/download PDF

45. Social worker preparedness for retirement: gender and ethnic considerations.

Author

Julia M, Kilty KM, and Richardson V

Abstract

A systematic, comprehensive analysis of preretirement attitudes and planning among social workers is clearly needed. This article describes research to examine the extent to which social workers adequately prepare for retirement. The analysis established controls for gender and ethnicity, specifically for African American, Puerto Rican, and white social workers, because earlier research indicates that these variables significantly affect how much and how well professionals prepare for retirement. Based on the findings, recommendations and a call for action are provided that will help social workers prepare better before they retire and struggle less during retirement. The need for social workers to conceptualize retirement as a process that has several stages is stressed. [ABSTRACT FROM AUTHOR]

Published
1995

46. Comparison of tetrazolium colorimetric and [3H]-uridine assays for in vitro chemosensitivity testing.

Author

Ford, C H, Richardson, V J, and Tsaltas, G

Abstract

We have routinely used a [3H]-uridine microplate assay for assessing chemosensitivity. A colorimetric assay with the advantages of safety, cost and simplicity has previously been described and relies on the ability of living cells to reduce a soluble tetrazolium salt, 3-4,5-dimethylthiazol-2,5-diphenyl-tetrazolium bromide (MMT), into an insoluble formazan precipitate. We compared the chemosensitivity of 14 human tumour cell lines of colonic, lung and cervical carcinoma origin to doxorubicin, vindesine or vindesine immunoconjugates in both the [3H]-uridine assay and a modified MTT assay to evaluate whether we could change to the non-radiolabelled method. Correlation between the concentration of drug causing 50% inhibition of cell growth (IC50) for these agents between the two assays was very poor. However, taking account of recent reports in the literature, we modified the MTT assay by removing serum-containing medium and using dimethyl sulphoxide to solubilise the formazan precipitate. This considerably improved the correlation between the assays for doxorubicin (r = 0.871; P = 0.001) and vindesine (r = 0.981; P less than 0.001). Our data indicates that the MTT assay can be used to replace the [3H]-uridine assay for chemosensitivity screening, but further modifications are necessary to improve the sensitivity and decrease the problem of cell loss after washing, which was noted with some adherent cell lines. [ABSTRACT FROM AUTHOR]

Published
1989

50. A MEASUREMENT OF DEMAND FOR PROFESSIONAL ENGINEERS.

Author

Richardson, V. A.

Subjects
LABOR market, LABOR supply, ENGINEERS, SCIENTISTS, ECONOMICS, EMPLOYMENT
Abstract

This paper is concerned with the extent to which the model of a competitive labour market may be held to be relevant in a consideration of the demand and supply of highly specialized manpower, such as professional engineers and scientists. It is striking that up to the present time the Government Appointed Committee on Manpower Resources for Science and Technology, in all its wide ranging discussions, and recommendations for an increased supply of scientific manpower, have hardly examined the workings of the labour market for this type of manpower in Britain. The alleged ‘shortage’ of scientists and engineers, we are told almost daily by some distinguished figure from the academic or professional engineering world, will lead to all sorts of dire consequences. The available statistical data on the relative earnings of engineers will be examined and in the light of this some of the findings of the Committee on Manpower Resources for Science and Technology will be briefly assessed. [ABSTRACT FROM AUTHOR]

Published
1969
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results