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125 results on '"Vialle, C."'

10. The BISTIM study: a randomized controlled trial comparing dual ovarian stimulation (duostim) with two conventional ovarian stimulations in poor ovarian responders undergoing IVF

Author

Massin, N, primary, Abdennebi, I, additional, Porcu-Buisson, G, additional, Chevalier, N, additional, Descat, E, additional, Piétin-Vialle, C, additional, Goro, S, additional, Brussieux, M, additional, Pinto, M, additional, Pasquier, M, additional, and Bry-Gauillard, H, additional

Published
2023
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16. P–599 random antral follicle count, performed at any day of the menstrual cycle, demonstrates the same predictive value for ovarian response in in vitro fertilization cycles

Author

Razafintsalama, M, primary, Bah, M, additional, Amand, G, additional, Vienet-Lègue, L, additional, Pietin-Vialle, C, additional, Bry-Gauillard, H, additional, Pinto, M, additional, Pasquier, M, additional, Jung, C, additional, Levaillant, J M, additional, and Massin, N, additional

Published
2021
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19. The Perils of Democratic Decision Making

Author

Aalbers, H.L., Whelan, E., Parise, S., and Vialle, C.

Subjects
Institute for Management Research
Abstract

Contains fulltext : 162185.pdf (Publisher’s version ) (Open Access) The article focuses on the organizational decision-making management. Topics mentioned include the development of enterprise social software (ESS), the online corporate communities management, and the project management. Also mentioned are the importance of customer services, the bankruptcy management, and the importance of online technology in business.

Published
2016

23. Ozone loss rates over the Arctic 2002/03 and Antarctic 2003 measured with the Match approach

Author

Streibel, M., von der Gathen, P., Rex, M., Deckelmann, H., Harris, N., Braathen, G., Chipperfield, M., Millard, G., Reimer, E., Alfier, R., Allaart, M., Andersen, S., Araujo, J., Balis, D., Billet, O., Cambridge, C., Claude, H., Colwell, S., Davis, J., De Backer, H., Deshler, T., Dier, H., Dorokhov, V., Easson, J., Fast, H., Gerding, M., Ginzburg, M., Godin-Beekmann, S., Johnson, B., Karhu, J., Klekociuk, A., Kyrö, E., Moore, D., Moran, E., Nagai, T., Nakane, H., Parrondo, C., Ravegnani, F., Roscoe, H., Sato, K., Shanklin, J., Skrivankova, P., Stübi, R., Tripathi, O., Varotsos, C., Vialle, C., Viatte, P., Yamanouchi, T., Yela, M., Yoshizawa, N., Yushkov, V., and Zerefos, C.

Abstract

To improve our understanding of wintertime polar ozone losses, two ozonesonde Match campaigns were performed. The first one was carried out in the Arctic winter 2002/03. About 450 co-ordinated ozonesondes were launched from late November 2002 to March 2003. Temperatures low enough for the formation of polar stratospheric clouds (PSC) occurred already in the second half of November. At 475 K the Match analysis shows increasing ozone loss rates from early December until the second half of January with peaking loss rates of 35 ppbv/day. Afterwards the rate of ozone loss decreased and stopped after a month. Throughout the whole winter we find accumulated ozone loss of about 1.5 ppmv at the 500 K isentrope and approximately 60 DU in the total ozone column, which is about half of the maximum loss found in past winters. From June to October 2003 an Antarctic Match campaign was carried out for the first time. About 400 sondes were launched by 9 stations. Ozone loss rates of up to 75 ppbv/day were found inside the polar vortex at the 475 K potential temperature level during the first half of September. The timing of the fastest ozone loss coincides with the return of sunlight to the vortex after the Antarctic winter. During the whole time period temperatures were low enough for PSCs, including ice clouds, to form. Results for the potential temperature range between 400 K and 550 K will be presented.

Published
2004

26. Arctic ozone loss in threshold conditions: Match observations in 1997/1998 and 1998/1999

Author

Schulz, A. Rex, M. Harris, N.R.P. Braathen, G.O. Reimer, E. Alfier, R. Kilbane-Dawe, I. Eckermann, S. Allaart, M. Alpers, M. Bojkov, B. Cisneros, J. Claude, H. Cuevas, E. Davies, J. De Backer, H. Dier, H. Dorokhov, V. Fast, H. Godin, S. Johnson, B. Kois, B. Kondo, Y. Kosmidis, E. Kyrö, E. Litynska, Z. Mikkelsen, I.S. Molyneux, M.J. Murphy, G. Nagai, T. Nakane, H. O'Connor, F. Parrondo, C. Schmidlin, F.J. Skrivankova, P. Varotsos, C. Vialle, C. Viatte, P. Yushkov, V. Zerefos, C. Von Der Gathen, P.

Abstract

Chemical ozone loss rates inside the Arctic polar vortex were determined in early 1998 and early 1999 by using the Match technique based on coordinated ozonesonde measurements. These two winters provide the only opportunities in recent years to investigate chemical ozone loss in a warm Arctic vortex under threshold conditions, i.e., where the preconditions for chlorine activation, and hence ozone destruction, only occurred occasionally. In 1998, results were obtained in January and February between 410 and 520 K. The overall ozone loss was observed to be largely insignificant, with the exception of late February, when those air parcels exposed to temperatures below 195 K were affected by chemical ozone loss. In 1999, results are confined to the 475 K isentropic level, where no significant ozone loss was observed. Average temperatures were some 8° - 10° higher than those in 1995, 1996, and 1997, when substantial chemical ozone loss occurred. The results underline the strong dependence of the chemical ozone loss on the stratospheric temperatures. This study shows that enhanced chlorine alone does not provide a sufficient condition for ozone loss. The evolution of stratospheric temperatures over the next decade will be the determining factor for the amount of wintertime chemical ozone loss in the Arctic stratosphere. Copyright 2001 by the American Geophysical Union.

Published
2001

27. Match observations in the Arctic winter 1996/97: High stratospheric ozone loss rates correlate with low temperatures deep inside the polar vortex

Author

Schulz, A. Rex, M. Steger, J. Harris, N.R.P. Braathen, G.O. Reimer, E. Alfier, R. Beck, A. Alpers, M. Cisneros, J. Claude, H. De Backer, H. Dier, H. Dorokhov, V. Fast, H. Godin, S. Hansen, G. Kanzawa, H. Kois, B. Kondo, Y. Kosmidis, E. Kyrö, E. Litynska, Z. Molyneux, M.J. Murphy, G. Nakane, H. Parrondo, C. Ravegnani, F. Varotsos, C. Vialle, C. Viatte, P. Yushkov, V. Zerefos, C. Von Der Gathen, P.

Abstract

With the Match technique, which is based on the coordinated release of ozonesondes, chemical ozone loss rates in the Arctic stratospheric vortex in early 1997 have been quantified in a vertical region between 400 K and 550 K. Ozone destruction was observed from mid February to mid March in most of these levels, with maximum loss rates between 25 and 45 ppbv/day. The vortex averaged loss rates and the accumulated vertically integrated ozone loss have been smaller than in the previous two winters, indicating that the record low ozone columns observed in spring 1997 were partly caused by dynamical effects. The observed ozone loss is inhomogeneous through the vortex with the highest loss rates located in the vortex centre, coinciding with the lowest temperatures. Here the loss rates per sunlit hour reached 6 ppbv/h, while the corresponding vortex averaged rates did not exceed 3.9 ppbv/h.

Published
2000

35. Pixel level packaging for uncooled IRFPA

Author

Dumont, G., primary, Rabaud, W., additional, Baillin, X., additional, Pornin, JL., additional, Carle, L., additional, Goudon, V., additional, Vialle, C., additional, Pellat, M., additional, and Arnaud, A., additional

Published
2011
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41. Arctic ozone loss in threshold conditions: Match observations in 1997/1998 and 1998/1999

Author

Schulz, Astrid, Rex, Markus, Harris, N. R. P., Braathen, G. O., Reimer, E., Alfier, R., Kilbane-Dawe, I., Eckermann, S., Allaart, M., Alpers, M., Bojkov, B., Cisneros, J., Claude, H., Cuevas, E., Davies, J., Backer, H. de, Dier, H., Dorokhov, V., Fast, H., Godin, S., Johnson, B., Kois, B., Kondo, Y., Kosmidis, E., Kyrö, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M. J., Murphy, G., Nagai, T., Nakane, H., O'Connor, F., Parrondo, C., Schmidlin, F. J., Skrivankova, P., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., von der Gathen, Peter, Schulz, Astrid, Rex, Markus, Harris, N. R. P., Braathen, G. O., Reimer, E., Alfier, R., Kilbane-Dawe, I., Eckermann, S., Allaart, M., Alpers, M., Bojkov, B., Cisneros, J., Claude, H., Cuevas, E., Davies, J., Backer, H. de, Dier, H., Dorokhov, V., Fast, H., Godin, S., Johnson, B., Kois, B., Kondo, Y., Kosmidis, E., Kyrö, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M. J., Murphy, G., Nagai, T., Nakane, H., O'Connor, F., Parrondo, C., Schmidlin, F. J., Skrivankova, P., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., and von der Gathen, Peter

Abstract

Chemical ozone loss rates inside the Arctic polar vortexweredetermined in early 1998 and early 1999 by using the Match techniquebased on coordinated ozonesonde measurements. These two wintersprovide the only opportunities in recent years to investigatechemical ozone loss in a warm Arctic vortex under thresholdconditions, i.e., where the preconditions for chlorine activation,and hence ozone destruction, only occurred occasionally. In 1998,results were obtained in January and February between 410 and 520 K.The overall ozone loss was observed to be largely insignificant,with the exception of late February, when those air parcels exposedto temperatures below 195 K were affected by chemical ozone loss. In1999, results are confined to the 475 K isentropic level, where nosignificant ozone loss was observed. Average temperatures were some8 -10 K higher than those in 1995, 1996, and 1997,when substantial chemical ozone loss occurred. The results underlinethe strong dependence of the chemical ozone loss on thestratospheric temperatures. This study shows that enhanced chlorinealone does not provide a sufficient condition for ozone loss. Theevolution of stratospheric temperatures over the next decade will bethe determining factor for the amount of wintertime chemical ozoneloss in the Arctic stratosphere.

Published
2001

44. Match observations in the Arctic winter 1996/97: High stratospheric ozone loss rates correlate with low temperatures deep inside the polar vortex

Author

Schulz, Astrid, Rex, Markus, Steger, J., Harris, N. R. P., Braathen, G. O., Reimer, E., Alfier, R., Beck, A., Alpers, M., Cisneros, J., Claude, H., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Godin, S., Hansen, G., Kanzawa, H., Kois, B., Kondo, Y., Kosmidis, E., Kyrö, E., Litynska, Z., Molyneux, M. J., Murphy, G., Nakane, H., Parrondo, C., Ravegnani, F., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., von der Gathen, Peter, Schulz, Astrid, Rex, Markus, Steger, J., Harris, N. R. P., Braathen, G. O., Reimer, E., Alfier, R., Beck, A., Alpers, M., Cisneros, J., Claude, H., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Godin, S., Hansen, G., Kanzawa, H., Kois, B., Kondo, Y., Kosmidis, E., Kyrö, E., Litynska, Z., Molyneux, M. J., Murphy, G., Nakane, H., Parrondo, C., Ravegnani, F., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., and von der Gathen, Peter

Abstract

With the Match technique, which is based on the coordinated release of ozonesondes, chemicalozone loss rates in the Arctic stratospheric vortex in early 1997 have been quantified in a verticalregion between 400K and 550K. Ozone destruction was observed from mid February to midMarch in most of these levels, with maximum loss rates between 25 and 45ppbv/day. The vortexaveraged loss rates and the accumulated vertically integrated ozone loss have been smaller than inthe previous two winters, indicating that the record low ozone columns observed in spring 1997were partly caused by dynamical effects. The observed ozone loss is inhomogeneous through thevortex with the highest loss rates located in the vortex centre, coinciding with the lowesttemperatures. Here the loss rates per sunlit hour reached 6 ppbv/h, while the correspondingvortex averaged rates did not exceed 3.9 ppbv/h.

Published
2000

45. Ozone loss rates determined with Match: Arctic winters 1997/98 and 1998/99

Author

Schulz, Astrid, Rex, Markus, Harris, N. R. P., Braathen, G. O., Kyrö, E., Reimer, E., Alfier, R., Kilbane-Dawe, I., Allaart, M., Alpers, M., Bojkov, B. R., Cisneros, J., Claude, H., Cuevas, E., Davies, J., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Johnson, B., Kois, B., Kosmidis, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M., Murphy, G., Nakane, H., O'Connor, F., Parrondo, C., Skrivankova, P., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., von der Gathen, Peter, Schulz, Astrid, Rex, Markus, Harris, N. R. P., Braathen, G. O., Kyrö, E., Reimer, E., Alfier, R., Kilbane-Dawe, I., Allaart, M., Alpers, M., Bojkov, B. R., Cisneros, J., Claude, H., Cuevas, E., Davies, J., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Johnson, B., Kois, B., Kosmidis, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M., Murphy, G., Nakane, H., O'Connor, F., Parrondo, C., Skrivankova, P., Varotsos, C., Vialle, C., Viatte, P., Yushkov, V., Zerefos, C., and von der Gathen, Peter

Published
2000

48. Arctic ozone loss in threshold conditions: Match observations in 1997/1998 and 1998/1999

Author

Schulz, A., primary, Rex, M., additional, Harris, N. R. P., additional, Braathen, G. O., additional, Reimer, E., additional, Alfier, R., additional, Kilbane‐Dawe, I., additional, Eckermann, S., additional, Allaart, M., additional, Alpers, M., additional, Bojkov, B., additional, Cisneros, J., additional, Claude, H., additional, Cuevas, E., additional, Davies, J., additional, De Backer, H., additional, Dier, H., additional, Dorokhov, V., additional, Fast, H., additional, Godin, S., additional, Johnson, B., additional, Kois, B., additional, Kondo, Y., additional, Kosmidis, E., additional, Kyrö, E., additional, Litynska, Z., additional, Mikkelsen, I. S., additional, Molyneux, M. J., additional, Murphy, G., additional, Nagai, T., additional, Nakane, H., additional, O'Connor, F., additional, Parrondo, C., additional, Schmidlin, F. J., additional, Skrivankova, P., additional, Varotsos, C., additional, Vialle, C., additional, Viatte, P., additional, Yushkov, V., additional, Zerefos, C., additional, and von der Gathen, P., additional

Published
2001
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49. Match observations in the Arctic winter 1996/97: High stratospheric ozone loss rates correlate with low temperatures deep inside the polar vortex

Author

Schulz, A., primary, Rex, M., additional, Steger, J., additional, Harris, N. R. P., additional, Braathen, G. O., additional, Reimer, E., additional, Alfier, R., additional, Beck, A., additional, Alpers, M., additional, Cisneros, J., additional, Claude, H., additional, De Backer, H., additional, Dier, H., additional, Dorokhov, V., additional, Fast, H., additional, Godin, S., additional, Hansen, G., additional, Kanzawa, H., additional, Kois, B., additional, Kondo, Y., additional, Kosmidis, E., additional, Kyrö, E., additional, Litynska, Z., additional, Molyneux, M. J., additional, Murphy, G., additional, Nakane, H., additional, Parrondo, C., additional, Ravegnani, F., additional, Varotsos, C., additional, Vialle, C., additional, Viatte, P., additional, Yushkov, V., additional, Zerefos, C., additional, and von der Gathen, P., additional

Published
2000
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