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International Oil Companies: Some Considerations for the Development of Ireland's Hydrocarbon Resources (1982)

Breathnach, Proinnsias

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Social Polarisation in the Post-Fordist Informational Economy: Ireland in International Context (2007)

Breathnach, Proinnsias

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International research networks in pharmaceuticals:Structure and dynamics (2014)

Cantner, Uwe; Rake, Bastian

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Conference Report: Internet Librarian International London, 16 – 17th October 2018 (2019)

O'Brien, Niall

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The Domestic and International Roles of the Irish Overseas Colleges, 1590-1800 (2018)

O'Connor, Thomas

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International and Intergenerational Environmental Externalities (1997)

Pecchenino, Rowena A.

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9th International Conference on In Vivo Methods Monitoring Molecules in Neuroscience, June 16-19, 2001, University College Dublin, Ireland (2002)

O'Connor, William T.; O'Connor, John J.; Lowry, John P.; O'Neill, Robert D.

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Optimal International Asset Allocation with Time-varying Risk (2006)

Flavin, Thomas; Wickens, M.R.

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Establishment of the first World Health Organization International Standard for human parvovirus B19 DNA nucleic acid amplification techniques (2002)

Saldanha, J.; Lelie, N.; Yu, M.W.; Heath, A.; Albrecht, J.; Buhr, S.; Roth, W.; Chaput,...

Establishment of the first World Health Organization International Standard for human parvovirus B19 DNA nucleic acid amplification techniques (2002)

Saldanha, J.; Lelie, N.; Yu, M.W.; Heath, A.; Albrecht, J.; Buhr, S.; Roth, W.; Chaput, C.; Chudy, M.; Schmidt, I.; Cohen, B.; Defer, C.; Lefebvre, C.; Doyle, S.; Daly, P.; Echevarria, J.; Erdman, D.; Anderson, B.; Fang, R.; Johnstone, D.

Abstract:

BACKGROUND AND OBJECTIVES: A collaborative study, involving 26 laboratories from 14 countries, was carried out in order to establish a World Health Organization (WHO) International Standard for human parvovirus B19 (B19) DNA nucleic acid amplification techniques (NAT). MATERIALS AND METHODS: Four samples: AA, BB (which were lyophilized), CC and DD (which were liquid preparations) were analysed using several different NAT assays. The mean B19 DNA content of each sample was determined for each laboratory using an end-point dilution method. RESULTS: There was good agreement between the overall mean 'equivalents'/ml obtained by the different assays. The mean log(10) 'equivalents'/ml were 5.76 for sample AA, 5.73 for sample BB, 5.82 for sample CC and 7.70 for sample DD. The differences in titre among samples AA, BB and CC were not statistically significant, but the titre of DD was significantly higher. CONCLUSIONS: Despite the range of NAT assays used in the study...