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3. Acute tryptophan depletion alters affective touch perception

Author

Trotter, PD, Smith, SA, Moore, DJ, O'Sullivan, N, McFarquhar, MM, McGlone, FP, and Walker, SC

Subjects
Pharmacology, RM, Serotonin, Double-Blind Method, Touch Perception, Touch, Physical Stimulation, RC0321, Tryptophan, BF, Humans, Female
Abstract

Rationale Affiliative tactile interactions help regulate physiological arousal and confer resilience to acute and chronic stress. C-tactile afferents (CTs) are a population of unmyelinated, low threshold mechanosensitive cutaneous nerve fibres which respond optimally to a low force stimulus, moving at between 1 and 10 cm/s. As CT firing frequencies correlate positively with subjective ratings of touch pleasantness, they are hypothesised to form the first stage of encoding affiliative tactile interactions. Serotonin is a key modulator of social responses with known effects on bonding. Objectives The aim of the present study was to determine the effect of acutely lowering central serotonin levels on perceptions of CT-targeted affective touch. Methods In a double blind, placebo-controlled design, the effect of acute tryptophan depletion (ATD) on 25 female participants’ ratings of directly and vicariously experienced touch was investigated. Psychophysical techniques were used to deliver dynamic tactile stimuli; some velocities were targeted to optimally activate CTs (1–10 cm/s), whereas other, faster and slower strokes fell outside the CT optimal range. Discriminative tactile function, cold pain threshold and tolerance were also measured. Results ATD significantly increased pleasantness ratings of both directly and vicariously experienced affective touch, increasing discrimination of the specific hedonic value of CT targeted velocities. While ATD had no effect on either tactile or cold pain thresholds, there was a trend for reduced tolerance to cold pain. Conclusions These findings are consistent with previous reports that depletion of central serotonin levels modulates neural and behavioural responsiveness to appetitive sensory signals.

Published
2022
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6. Contemporary management of locally advanced and recurrent rectal cancer: views from the PelvEx collaborative

Author

Kelly M. E., O’Sullivan N. J., Fahy M. R., Aalbers A. G. J., Abdul Aziz N., Abecasis N., Abraham-Nordling M., Abu Saadeh F., Akiyoshi T., Alberda W., Albert M., Andric M., Angeles M. A., Angenete E., Antoniou A., Auer R., Austin K. K., Aytac E., Aziz O., Bacalbasa N., Baker R. P., Bali M., Baransi S., Baseckas G., Bebington B., Bedford M., Bednarski B. K., Beets G. L., Berg P. L., Bergzoll C., Beynon J., Biondo S., Boyle K., Bordeianou L., Brecelj E., Bremers A. B., Brunner M., Buchwald P., Bui A., Burgess A., Burger J. W. A., Burling D., Burns E., Campain N., Carvalhal S., Castro L., Caycedo-Marulanda A., Ceelen W., Chan K. K. L., Chang G. J., Chang M., Chew M. H., Chok A. Y., Chong P., Clouston H., Codd M., Collins D., Colquhoun A. J., Constantinides J., Corr A., Coscia M., Cosimelli M., Cotsoglou C., Coyne P. E., Croner R. S., Damjanovich L., Daniels I. R., Davies M., Delaney C. P., de Wilt J. H. W., Denost Q., Deutsch C., Dietz D., Domingo S., Dozois E. J., Drozdov E., Duff M., Eglinton T., Enriquez-Navascues J. M., Espín-Basany E., Evans M. D., Eyjólfsdóttir B., Fearnhead N. S., Ferron G., Fichtner-Feigl S., Flatmark K., Fleming F. J., Flor B., Folkesson J., Frizelle F. A., Funder J., Gallego M. A., Gargiulo M., García-Granero E., García-Sabrido J. L., Gava V. G., Gentilini L., George M. L., George V., Georgiou P., Ghosh A., Ghouti L., Gil-Moreno A., Giner F., Ginther D. N., Glyn T., Glynn R., Golda T., Griffiths B., Harris D. A., Hanchanale V., Harji D. P., Harris C., Helewa R. M., Hellawell G., Heriot A. G., Hochman D., HohenbergerW., Holm T., Hompes R., Hornung B., Hurton S., Hyun E., Ito M., Iversen L. H., Jenkins J. T., Jourand K., Kaffenberger S., Kandaswamy G. V., Kapur S., Kanemitsu Y., Kazi M., Kelley S. R., Keller D. S., Ketelaers S. H. J., Khan M. S., Kiran R. P., Kim H., Kim H. J., Koh C. E., Kok N. F. M., Kokelaar R., Kontovounisios C., Kose F., Koutra M., Kristensen H. Ø., Kroon H. M., Kumar S., Kusters M., Lago V., Lampe B., Lakkis Z., Larach J. T., Larkin J. O., Larsen S. G., Larson D. W., Law W. L., Lee P. J., Limbert M., Loria A., Lydrup ML., Lyons A., Lynch A. C., Maciel J., Manfredelli S., Mann C., Mantyh C., Mathis K. L., Marques C. F. S., Martinez A., Martling A., Mehigan B. J., MeijerinkW. J. H. J., Merchea A., Merkel S., Mehta A. M., Mikalauskas S., McArthur D. R., McCormick J. J., McCormick P., McDermott F. D., McGrath J. S., Malde S., Mirnezami A., Monson J. R. T., Navarro A. S., Neeff H., Negoi I., Neto J. W. M., Ng J. L., Nguyen B., Nielsen M. B., Nieuwenhuijzen G. A. P., Nilsson P. J., Nordkamp S., Nugent T., Oliver A., O’Dwyer S. T., Paarnio K., Palmer G., Pappou E., Park J., Patsouras D., Peacock O., Pellino G., Peterson A. C., Pfeffer F., Pinson J., Poggioli G., Proud D., Quinn M., Quyn A., Rajendran N., Radwan R. W., Rao C., Rasheed S., Rausa E., Regenbogen S. E., Reims H. M., Renehan A., Rintala J., Rocha R., Rochester M., Rohila J., Rothbarth J., Rottoli M., Roxburgh C., Rutten H. J. T., Safar B., Sagar P. M., Sahai A., Saklani A., Sammour T., Sayyed R., Schizas A. M. P., Schwarzkopf E., Scripcariu D., Scripcariu V., Selvasekar C., Shaikh I., Simpson A., Skeie-Jensen T., Smart N. J., Smart P., Smith J. J., Solbakken A. M., Solomon M. J., Sørensen M. M., Sorrentino L., Steele S. R., Steffens D., Stitzenberg K., Stocchi L., Stylianides N. A., Swartling T., Spasojevic M., Sumrien H., Sutton P. A., Swartking T., Takala H., Tan E. J., Taylor C., Taylor D., Tekin A., Tekkis P. P., Teras J., Thaysen H. V., Thurairaja R., Thorgersen E. B., Tiernan J., Toh E. L., Tolenaar J., Tsarkov P., Tsukada Y., Tsukamoto S., Tuech J. J., Turner W. H., Tuynman J. B., Valente M., van Ramshorst G. H., van Rees J., van Zoggel D., Vasquez-JimenezW., Vather R., Verhoef C., Vierimaa M., Vizzielli G., Voogt E. L. K., Uehara K., Urrejola G., Wakeman C., Warrier S. K., Wasmuth H. H., Waters P. S., Weber K., Weiser M. R., Wheeler J. M. D., Wild J., Williams A., Wilson M., Wolthuis A., Yano H., Yip B., Yoo R. N., Zappa M. A., Winter D. C., and Kelly M.E., O’Sullivan N.J., Fahy M.R., Aalbers A.G.J., Abdul Aziz N., Abecasis N., Abraham-Nordling M., Abu Saadeh F., Akiyoshi T., Alberda W., Albert M., Andric M., Angeles M.A., Angenete E., Antoniou A., Auer R., Austin K.K., Aytac E., Aziz O., Bacalbasa N., Baker R.P., Bali M., Baransi S., Baseckas G., Bebington B., Bedford M., Bednarski B.K., Beets G.L., Berg P.L., Bergzoll C., Beynon J., Biondo S., Boyle K., Bordeianou L., Brecelj E., Bremers A.B., Brunner M., Buchwald P., Bui A., Burgess A., Burger J.W.A., Burling D., Burns E., Campain N., Carvalhal S., Castro L., Caycedo-Marulanda A., Ceelen W., Chan K.K.L., Chang G.J., Chang M., Chew M.H., Chok A.Y., Chong P., Clouston H., Codd M., Collins D., Colquhoun A.J., Constantinides J., Corr A., Coscia M., Cosimelli M., Cotsoglou C., Coyne P.E., Croner R.S., Damjanovich L., Daniels I.R., Davies M., Delaney C.P., de Wilt J.H.W., Denost Q., Deutsch C., Dietz D., Domingo S., Dozois E.J., Drozdov E., Duff M., Eglinton T., Enriquez-Navascues J.M., Espín-Basany E., Evans M.D., Eyjólfsdóttir B., Fearnhead N.S., Ferron G., Fichtner-Feigl S., Flatmark K., Fleming F.J., Flor B., Folkesson J., Frizelle F.A., Funder J., Gallego M.A., Gargiulo M., García-Granero E., García-Sabrido J.L., Gargiulo M., Gava V.G., Gentilini L., George M.L., George V., Georgiou P., Ghosh A., Ghouti L., Gil-Moreno A., Giner F., Ginther D.N., Glyn T., Glynn R., Golda T., Griffiths B., Harris D.A., Hanchanale V., Harji D.P., Harris C., Helewa R.M., Hellawell G., Heriot A.G., Hochman D., HohenbergerW., Holm T., Hompes R., Hornung B., Hurton S., Hyun E., Ito M., Iversen L.H., Jenkins J.T., Jourand K., Kaffenberger S., Kandaswamy G.V., Kapur S., Kanemitsu Y., Kazi M., Kelley S.R., Keller D.S., Ketelaers S.H.J., Khan M.S., Kiran R.P., Kim H., Kim H.J., Koh C.E., Kok N.F.M., Kokelaar R., Kontovounisios C., Kose F., Koutra M., Kristensen H.Ø., Kroon H.M., Kumar S., Kusters M., Lago V., Lampe B., Lakkis Z., Larach J.T., Larkin J.O., Larsen S.G., Larson D.W., Law W.L., Lee P.J., Limbert M., Loria A., Lydrup ML., Lyons A., Lynch A.C., Maciel J., Manfredelli S., Mann C., Mantyh C., Mathis K.L., Marques C.F.S., Martinez A., Martling A., Mehigan B.J., MeijerinkW.J.H.J., Merchea A., Merkel S., Mehta A.M., Mikalauskas S., McArthur D.R., McCormick J.J., McCormick P., McDermott F.D., McGrath J.S., Malde S., Mirnezami A., Monson J.R.T., Navarro A.S., Neeff H., Negoi I., Neto J.W.M., Ng J.L., Nguyen B., Nielsen M.B., Nieuwenhuijzen G.A.P., Nilsson P.J., Nordkamp S., Nugent T., Oliver A., O’Dwyer S.T., Paarnio K., Palmer G., Pappou E., Park J., Patsouras D., Peacock O., Pellino G., Peterson A.C., Pfeffer F., Pinson J., Poggioli G., Proud D., Quinn M., Quyn A., Rajendran N., Radwan R.W., Rajendran N., Rao C., Rasheed S., Rausa E., Regenbogen S.E., Reims H.M., Renehan A., Rintala J., Rocha R., Rochester M., Rohila J., Rothbarth J., Rottoli M., Roxburgh C., Rutten H.J.T., Safar B., Sagar P.M., Sahai A., Saklani A., Sammour T., Sayyed R., Schizas A.M.P., Schwarzkopf E., Scripcariu D., Scripcariu V., Selvasekar C., Shaikh I., Simpson A., Skeie-Jensen T., Smart N.J., Smart P., Smith J.J., Solbakken A.M., Solomon M.J., Sørensen M.M., Sorrentino L., Steele S.R., Steffens D., Stitzenberg K., Stocchi L., Stylianides N.A., Swartling T., Spasojevic M., Sumrien H., Sutton P.A., Swartking T., Takala H., Tan E.J., Taylor C., Taylor D., Tekin A., Tekkis P.P., Teras J., Thaysen H.V., Thurairaja R., Thorgersen E.B., Tiernan J., Toh E.L., Tolenaar J., Tsarkov P., Tsukada Y., Tsukamoto S., Tuech J.J., Turner W.H., Tuynman J.B., Valente M., van Ramshorst G.H., van Rees J., van Zoggel D., Vasquez-JimenezW., Vather R., Verhoef C., Vierimaa M., Vizzielli G., Voogt E.L.K., Uehara K., Urrejola G., Wakeman C., Warrier S.K.,Wasmuth H.H.,Waters P.S.,Weber K.,Weiser M.R., Wheeler J.M.D.,Wild J., Williams A., Wilson M., Wolthuis A., Yano H., Yip B., Yoo R.N., Zappa M.A., Winter D.C.

Subjects
Cancer Research, perioperative care, ENHANCED RECOVERY, diagnostic, EXENTERATION, surgical management, surgical outcomes, recurrent rectal cancer, SDG 3 - Good Health and Well-being, locally advanced rectal cancer, QUALITY-OF-LIFE, Medicine and Health Sciences, diagnostics, 1112 Oncology and Carcinogenesis, PATHOLOGICAL COMPLETE RESPONSE, rectal cancer, SURGICAL TECHNIQUES, OUTCOMES, Science & Technology, HYPERTHERMIC INTRAPERITONEAL, PelvEx Collaborative, CHEMOTHERAPY, WHOLE-BODY MRI, NEOADJUVANT CHEMORADIOTHERAPY, Oncology, quality of life, CYTOREDUCTIVE SURGERY, HYPERTHERMIC INTRAPERITONEAL CHEMOTHERAPY, Life Sciences & Biomedicine
Abstract

Pelvic exenteration is a complex operation performed for locally advanced and recurrent pelvic cancers. The goal of surgery is to achieve clear margins, therefore identifying adjacent or involved organs, bone, muscle, nerves and/or vascular structures that may need resection. While these extensive resections are potentially curative, they can be associated with substantial morbidity. Recently, there has been a move to centralize care to specialized units, as this facilitates better multidisciplinary care input. Advancements in pelvic oncology and surgical innovation have redefined the boundaries of pelvic exenterative surgery. Combined with improved neoadjuvant therapies, advances in diagnostics, and better reconstructive techniques have provided quicker recovery and better quality of life outcomes, with improved survival This article provides highlights of the current management of advanced pelvic cancers in terms of surgical strategy and potential future developments.

Published
2022
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8. Incidence and severity of pertussis hospitalisations in infants aged less than 1 year in 37 hospitals of six EU/EEA countries, results of PERTINENT sentinel pilot surveillance system, December 2015 to December 2018

Author

Merdrignac L, Aït El Belghiti F, Pandolfi E, Jané M, Murphy J, Fabiánová K, García Cenoz M, Flem E, Guillot S, Tozzi AE, Carmona G, Habington A, Zavadilová J, Navasués A, Bøås H, Lévy-Brühl D, Ferretti B, Miguel Lanaspa Pérez, O'Sullivan N, Krížová P, Fernandino L, Bekkevold T, Hanslik T, Munoz-Almagro C, Bacci S, Spiteri G, Valenciano M, Moren A, PERTINENT Group, and PERTINENT group

Subjects
pertussis, active surveillance, hospital surveillance, pertussis incidence
Abstract

IntroductionPERTINENT is a pilot active surveillance system of infants hospitalised with pertussis in six European Union/European Economic Area countries (37 hospitals, seven sites).AimThis observational study aimed to estimate annual pertussis incidence per site from 2016 to 2018 and respective trends between 2017 and 2018. Pertussis cases were described, including their severity.MethodsWe developed a generic protocol and laboratory guidelines to harmonise practices across sites. Cases were hospitalised infants testing positive for Bordetella pertussis by PCR or culture. Sites collected demographic, clinical, laboratory data, vaccination status, and risk/protective factors. We estimated sites' annual incidences by dividing case numbers by the catchment populations.ResultsFrom December 2015 to December 2018, we identified 469 cases (247 males; 53%). The median age, birthweight and gestational age were 2.5 months (range: 0-11.6; interquartile range (IQR): 2.5), 3,280 g (range: 700-4,925; IQR: 720) and 39 weeks (range: 25-42; IQR: 2), respectively. Thirty cases (6%) had atypical presentation either with cough or cyanosis only or with absence of pertussis-like symptoms. Of 330 cases with information, 83 (25%) were admitted to intensive care units including five deceased infants too young to be vaccinated. Incidence rate ratios between 2018 and 2017 were 1.43 in Czech Republic (p = 0.468), 0.25 in Catalonia (p = 0.002), 0.71 in France (p = 0.034), 0.14 in Ireland (p = 0.002), 0.63 in Italy (p = 0.053), 0.21 in Navarra (p = 0.148) and zero in Norway.ConclusionsIncidence appeared to decrease between 2017 and 2018 in all but one site. Enhanced surveillance of hospitalised pertussis in Europe is essential to monitor pertussis epidemiology and disease burden.

Published
2021

9. Early vs. standard reversal ileostomy: a systematic review and meta-analysis.

Author

O'Sullivan, N. J., Temperley, H. C., Nugent, T. S., Low, E. Z., Kavanagh, D. O., Larkin, J. O., Mehigan, B. J., McCormick, P. H., and Kelly, M. E.

Subjects
ILEOSTOMY, RECTAL surgery, SURGICAL stomas, RANDOMIZED controlled trials, BOWEL obstructions, SMALL intestine
Abstract

Background: Formation of a defunctioning loop ileostomy is common after mid and low rectal resection. Historically, they were reversed between 3 and 6 months after initial resection. Recently, earlier closure (< 14 days) has been suggested by some current randomised controlled trials. The aim of this study was to investigate the effect of early stoma closure on surgical and patient outcomes. Methods: A systematic review of the current randomised controlled trial literature comparing early and standard ileostomy closure after rectal surgery was performed. Specifically, we examined surgical outcomes including; morbidity, mortality and quality of life. Results: Six studies met the predefined criteria and were included in our analysis. 275 patients underwent early stoma closure compared with 259 patients having standard closure. Overall morbidity was similar between both groups (25.5% vs. 21.6%) (OR, 1.47; 95% CI 0.75–2.87). However, there tended to be more reoperations (8.4 vs. 4.2%) (OR, 2.02, 95% CI 0.99–4.14) and small bowel obstructions/postoperative ileus (9.3% vs. 4.4%) (OR 0.44, 95% CI 0.22–0.90) in the early closure group, but no difference across the other domains. Conclusions: Early closure appears to be a feasible in highly selective cases after good perioperative counselling and shared decision-making. Further research on quality of life outcomes and long term benefits is necessary to help define which patients are suitable candidates for early closure. [ABSTRACT FROM AUTHOR]

Published
2022
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10. When does audit committee busyness influence earnings management in the UK? Evidence on the role of the financial crisis and company size

Author

Ghafran, C., O'Sullivan, N., and Yasmin, S.

Subjects
health services administration, Accounting, education, Finance
Abstract

We investigate the impact of audit committee busyness on earnings management in FTSE350 companies between 2007 and 2013, a period that includes the global financial crisis and its immediate aftermath. Using a range of busyness measures and examining the impact on both accruals and real earnings management, we find that the busyness of audit committee members has a negative impact on earnings quality, which suggests that members with more board seats are less effective monitors of managers’ desire to manipulate earnings. Our findings are more pronounced in FTSE250 than in FTSE100 firms. We also find that the detrimental impact of busy audit committees is more pronounced during the financial crisis and, in the case of real earnings management, is not observed afterwards. Our findings raise important questions for corporate governance regulators, who have not previously sought to address audit committee busyness and its potential impact on audit committee effectiveness. Our results also emphasize the need for researchers to appreciate the wider economic circumstances in which studies are undertaken, the lack of homogeneity between larger and smaller listed firms, and the importance of jurisdiction in governance-related studies.

Published
2022
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11. Extent and consistency across generations of linkage disequilibrium in commercial layer chicken breeding populations

Author

Heifetz, E.M., Fulton, J.E., O'Sullivan, N., Zhao, H., Dekkers, J.C.M., and Soller, M.

Subjects
Quantitative trait loci -- Research, Chromosomes -- Research, Poultry -- Breeding, Poultry -- Research, Biological sciences
Abstract

Recent studies report a surprisingly high degree of marker-to-marker linkage disequilibrium (LD) in ruminant livestock populations. This has important implications for QTL mapping and marker-assisted selection. This study evaluated LD between microsatellite markers in a number of breeding populations of layer chickens using the standardized chi-square ([X.sup.2]) measure. The results show appreciable LD among markers separated by up to 5 cM, decreasing rapidly with increased separation between markers. The LD within 5 cM was strongly conserved across generations and differed among chromosomal regions. Using marker-to-marker LD as an indication for marker-QTL LD, a genome scan of markers spaced 2 cM apart at moderate power would have good chances of uncovering most QTL segregating in these populations. However, of markers showing significant trait associations, only 57% are expected to be within 5 cM of the responsible QTL, and the remainder will be up to 20 cM away. Thus, high-resolution LD mapping of QTL will require dense marker genotyping across the region of interest to allow for interval mapping of file QTL.

Published
2005

14. Early Greek concepts of rhetorical style

Author

O'Sullivan, N.

Subjects
800, Greek philosophical style
Abstract

The central argument of this dissertation is that the origins of the stylistic classification found in ancient rhetorical theory can be discerned already in texts before the time of Theophrastus. The introductory first chapter sets out the ancient concept of style, and argues that Aristophanes' portrayal of poets in the Frogs shows a dichotomy which has much in common with later stylistic classifications. Points of contact between Sophists and those poets are used to suggest that a similar division of orators at the time may have been plausible. The second chapter is an examination of the controversy between Alcidamas and Isocrates. The style of Alcidamas is discussed, particularly in relation to that of his teacher Gorgias. Alcidamas' speech on extemporaneous and written speeches is then compared with the opinions of Isocrates, Plato and Aristotle on different styles of speaking, and it is argued that all four share a common conceptual framework, which has significant points of contact with Aristophanes' stylistic division of poets. The third chapter examines the Contest of Homer and Hesiod, which has long been thought to have been based on an earlier version by Alcidamas. Possible traces of his influence are suggested, particularly in view of his stylistic conflict with Isocrates. The fourth chapter discusses Aristophanes' descriptions of orators. In the light of his criticism of poets (seen in the Introduction) and the rhetorical controversies shown in the second and third chapters, it is argued that he imposes the same basic division on rhetorical as on poetic style. In the Conclusion, after a brief summary of findings and some suggestions of their implications, a new reading of Prodicus' Choice of Herakles is ventured. Using what has been seen of early critical language and imagery, as well as the preferences of second generation Sophists, it is argued that the fable may be viewed as a stylistic allegory, which shows Prodicus' style in contrast with that of Gorgias.

Published
1986

20. Multi-asset class mutual funds: Can they time the market? Evidence from the US, UK and Canada

Author

Clare, A., O'Sullivan, N., Sherman, M., and Thomas, S.

Subjects
Class (computer programming), 050208 finance, Financial economics, 0502 economics and business, 05 social sciences, Business, Management and Accounting (miscellaneous), Asset allocation, Business, Asset (economics), 050207 economics, Market timing, HG, Finance
Abstract

The importance of asset allocation decisions in wealth management is well established. However, given its importance it is perhaps surprising that so little attention has been paid to the question of whether professional fund managers are skilful at timing market movement across asset classes over time. The timing literature has tended to concentrate on the timing skill of single asset class funds. Using data on US, UK and Canadian multi-asset class funds, we apply two alternative methodologies to identify the asset class timing abilities of managers. Overall, whether we apply a returns-based method or a holdings-based testing approach, we find evidence of only a tiny minority of funds with asset class timing ability.

Published
2016

23. Environmental influences on elite sport athletes well being: From gold, silver, and bronze to blue green and gold

Author

Donnelly, AA, MacIntyre, TE, O'Sullivan, N, Warrington, G, Harrison, AJ, Igou, ER, Jones, M, Gidlow, C, Brick, N, Lahart, I, Cloak, R, Lane, AM, Donnelly, AA, MacIntyre, TE, O'Sullivan, N, Warrington, G, Harrison, AJ, Igou, ER, Jones, M, Gidlow, C, Brick, N, Lahart, I, Cloak, R, and Lane, AM

Abstract

Copyright 2016 Donnelly, MacIntyre, O'Sullivan, Warrington, Harrison, Igou, Jones, Gidlow, Brick, Lahart, Cloak and Lane. This paper considers the environmental impact on well-being and performance in elite athletes during Olympic competition. The benefits of exercising in natural environments are recognized, but less is known about the effects on performance and health in elite athletes. Although some Olympic events take place in natural environments, the majority occur in the host city, usually a large densely populated area where low exposure to natural environments is compounded by exposure to high levels of air, water, and noise pollution in the ambient environment. By combining methods and expertise from diverse but inter-related disciplines including environmental psychology, exercise physiology, biomechanics, environmental science, and epidemiology, a transdisciplinary approach will facilitate a greater understanding of the effects of the environment on Olympic athletes.

Published
2016

24. Using CD4 percentage and age to optimize pediatric antiretroviral therapy initiation

Author

Yin, D.E., Warshaw, M.G., Miller, W.C., Castro, H., Fiscus, S.A., Harper, L.M., Harrison, L.J., Klein, N.J., Lewis, J., Melvin, A.J., Tudor Williams, G., Mckinney, R.E., Brouwers, P., Costello, D., Ferguson, E., Fiscus, S., Hodge, J., Hughes, M., Jennings, C., Melvin, A., Mckinney, R., Mofenson, L., Warshaw, M., Smith, M., Spector, S., Stiehm, E., Toye, M., Yogev, R., Babiker, A., Compagnucci, A., De Rossi, A., Giaquinto, C., Darbyshire, J., Debré, M., Gibb, D., Harper, L., Harrison, L., Klein, N., Pillay, D., Saidi, Y., Walker, A., Brody, B., Hill, C., Lepage, P., Modlin, J., Poziak, A., Rein, M., Robb, M., Fleming, T., Vella, S., Kim, K., Bologna, R., Mecikovsky, D., Pineda, N., Sen, L., Mangano, A., Marino, S., Galvez, C., Deluchi, G., Zöhrer, B., Zenz, W., Daghofer, E., Pfurtscheller, K., Pabst, B., Gomez, M., Mcneil, P., Jervis, M., Whyms, I., Kwolfe, D., Scott, S., Mussi Pinhata MM, Issac, M., Cervi, M., Negrini, B., Matsubara, T., de Souza CB, Gabaldi, J., Oliveira, R., Sapia, M., Abreu, T., Evangelista, L., Pala, A., Fernandes, I., Farias, I., Melo M, D.F., Carreira, H., Lira, L., Della Negra, M., Queiroz, W., Lian, Y., Pacola, D., Pinto, J., Ferreira, F., Kakehasi, F., Martins, L., Diniz, A., Lobato, V., Diniz, M., Cleto, S., Costa, S., Romeiro, J., Dollfus, C., Tabone, M., Courcoux, M., Vaudre, G., Dehée, A., Schnuriger, A., Le Gueyades, N., De Bortoli, C., Méchinaud, F., Reliquet, V., Arias, J., Rodallec, A., André, E., Falconi, I., Le Pelletier, A., Monpoux, F., Cottalorda, J., Mellul, S., Lachassinne, E., Galimand, J., Rouzioux, C., Chaix, M., Benabadji, Z., Pourrat, M., Firtion, G., Rivaux, D., Denon, M., Boudjoudi, N., Nganzali, F., Krivine, A., Méritet, J., Delommois, G., Norgeux, C., Guérin, C., Floch, C., Marty, L., Hichou, H., Tournier, V., Faye, A., Le Moal, I., Sellier, M., Dehache, L., Damond, F., Leleu, J., Beniken, D., Alexandre Castor, G., Neubert, J., Niehues, T., Laws, H., Huck, K., Gudowius, S., Siepermann, K., Loeffler, H., Bellert, S., Ortwin, A., Notheis, G., Wintergerst, U., Hoffman, F., Werthmann, A., Seyboldt, S., Schneider, L., Bucholz, B., Feiterna Sperling, C., Peiser, C., Nickel, R., Schmitz, T., Piening, T., Müller, C., Warncke, G., Wigger, M., Neubauer, R., Butler, K., Chong, A., Boulger, T., Menon, A., O'Connell, M., Barrett, L., Rochford, A., Goode, M., Hayes, E., Mcdonagh, S., Walsh, A., Doyle, A., Fanning, J., O'Connor, M., Byrne, M., O'Sullivan, N., Hyland, E., Giacomet, V., Viganò, A., Colombo, I., Trabattoni, D., Berzi, A., Badolato, R., Schumacher, F., Bennato, V., Brusati, M., Sorlini, A., Spinelli, E., Filisetti, M., Bertulli, C., Rampon, O., Zanchetta, M., Mazza, A., Stringari, G., Rossetti, G., Bernardi, S., Martino, A., Castelli Gattinara, G., Palma, P., Pontrelli, G., Tchidjou, H., Furcas, A., Frillici, C., Mazzei, A., Zoccano, A., Concato, C., Duiculescu, D., Oprea, C., Tardei, G., Abaab, F., Mardarescu, M., Draghicenoiu, R., Otelea, D., Alecsandru, L., Matusa, R., Rugina, S., Ilie, M., Netescu, S., Florea, C., Voicu, E., Poalelungi, D., Belmega, C., Vladau, L., Chiriac, A., Ramos Amador JT, Gonzalez Tomé MI, Rojo Conejo, P., Fernandez, M., Delgado Garcia, R., Ferrari, J., Garcia Lopez, M., Mellado Peña MJ, Martin Fontelos, P., Jimenez Nacher, I., Muñoz Fernandez MA, Jimenez, J., García Torre, A., Penin, M., Pineiro Perez, R., Garcia Mellado, I., Finn, A., Lajeunesse, M., Hutchison, E., Usher, J., Ball, L., Dunn, M., Sharland, M., Doerholt, K., Storey, S., Donaghy, S., Chakraborty, R., Wells, C., Buckberry, K., Rice, P., Mcmaster, P., Butler, P., O'Connell C, R., Shenton, J., Haley, H., Orendi, J., Stroobant, J., Navarante, L., Archer, P., Mazhude, C., Scott, D., O'Connell, R., Wong, J., Boddy, G., Shackley, F., Lakshman, R., Hobbs, J., Ball, G., Kudesia, G., Bane, J., Painter, D., Sloper, K., Shah, V., Cheng, A., Aali, A., Ball, C., Hawkins, S., Nayagam, D., Waters, A., Doshi, S., Liebeschuetz, S., Sodiende, B., Shingadia, D., Wong, S., Swan, J., Shah, Z., Collinson, A., Hayes, C., King, J., O'Connor, K., Lyall, H., Fidler, K., Walters, S., Foster, C., Hamadache, D., Newbould, C., Monrose, C., Campbell, S., Yeung, S., Cohen, J., Martinez Allier, N., Melvin, D., Dodge, J., Welch, S., Tatum, G., Gordon, A., Kaye, S., Muir, D., Patel, D., Novelli, V., Moshal, K., Lambert, J., Flynn, J., Farrelly, L., Clapson, M., Spencer, L., Depala, M., Jacobsen, M., Segal, S., Pollard, A., Kelly, D., Yeadon, S., Ohene Kena, B., Peng, Y., Dong, T., Jeffries, K., Snelling, M., Smyth, A., Smith, J., Ward, B., Jungmann, E., Ryan, C., Swaby, K., Buckton, A., Smit, E., Abrams, E., Champion, S., Fernandez, A., Calo, D., Garrovillo, L., Swaminathan, K., Alford, T., Frere, M., Navarra, J., Borkowsky, W., Deygoo, S., Hastings, T., Akleh, S., Ilmet, T., Mohan, K., Bowen, G., Emmanuel, P., Lujan Zimmerman, J., Rodriguez, C., Johnson, S., Marion, A., Graisbery, C., Casey, D., Lewis, G., Guzman Cottrill, J., Croteau, R., Acevedo Flores, M., Gonzalez, M., Angeli, L., Fabregas, L., Valentin, P., Weiner, L., Contello, K., Holz, W., Butler, M., Nachman, S., Kelly, M., Ferraro, D., Rana, S., Reed, C., Yeagley, E., Malheiro, A., Roa, J., Neely, M., Kovacs, A., Homans, J., Rodriguez Lozano, Y., Puga, A., Talero, G., Sellers, R., Lawrence, R., Weinberg, G., Murante, B., Laverty, S., Deveikis, A., Batra, J., Chen, T., Michalik, D., Deville, J., Elkins, K., Marks, S., Jackson Alvarez, J., Palm, J., Fineanganofo, I., Keuth, M., Deveikis, L., Tomosada, W., Van Dyke, R., Alchediak, T., Silio, M., Borne, C., Bradford, S., Eloby Childress, S., Nguyen, K., Rathore, M., Alvarez, A., Mirza, A., Mahmoudi, S., Burke, M., Febo, I., Lugo, L., Santos, R., Church, J., Dunaway, T., Rodier, C., Flynn, P., Patel, N., Discenza, S., Donohoe, M., Luzuriaga, K., Picard, D., Kline, M., Paul, M., Shearer, W., Mcmullen, C., Chadwick, E., Cagwin, E., Kabat, K., Dieudonne, A., Palumbo, P., Johnson, J., Gaur, S., Cerracchio, L., Foca, M., Jurgrau, A., Vasquez Bonilla, S., Silva, G., Gershon, A., Sullivan, J., Bryson, Y., Frenkel, L., Nelson, J., Aboulker, J., Hadjou, G., Léonardo, S., Riault, Y., Saïdi, Y., Buck, L., Forcat, S., Horton, J., Johnson, D., Moore, S., Taylor, C., Collins, D., Buskirk, S., Kamara, P., Nesel, C., Johnson, M., Ferreira, A., Tutko, J., Sprenger, H., Britto, P., Powell, C., Dersimonian, R., Handelsman, E., Ananworanich, J., Belfrage, E., Blanche, S., Bohlin, A., Burger, D., Clayden, P., De Groot, R., Di Biagio, A., Grosch Wörner, I., Hainault, M., Lallemant, M., Levy, J., Marczynska, M., Mellado Pena MJ, Nadal, D., Naver, L., Peckham, C., Popieska, J., Rosado, L., Rosso, R., Rudin, C., Scherpbier, H., Stevanovic, M., Thorne, C., Tovo, P., Valerius, N., Poole, C., Cole, S., and Mcculloh, R.J.

Subjects
CD4-Positive T-Lymphocytes, Male, medicine.medical_treatment, HIV (FISIOLOGIA), lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4], Human immunodeficiency virus (HIV), HIV Infections, medicine.disease_cause, Treatment failure, Settore BIO/13 - Biologia Applicata, Antiretroviral Therapy, Highly Active, immunologic, Child, HIV, child, reconstitution, treatment failure, Adolescent, Anti-HIV Agents, CD4 Lymphocyte Count, Child, Preschool, Female, Follow-Up Studies, HIV-1, Humans, Infant, Infant, Newborn, Follow up studies, Immunosuppression, medicine.medical_specialty, Settore MED/17 - Malattie Infettive, Antiretroviral Therapy, World health, Article, Internal medicine, medicine, Highly Active, Preschool, Settore MED/04 - Patologia Generale, business.industry, Disease progression, Settore MED/46 - Scienze Tecniche di Medicina di Laboratorio, Newborn, Antiretroviral therapy, Confidence interval, lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4], Immunologic, Reconstitution, Pediatrics, Perinatology and Child Health, Immunology, business
Abstract

BACKGROUND: Quantifying pediatric immunologic recovery by highly active antiretroviral therapy (HAART) initiation at different CD4 percentage (CD4%) and age thresholds may inform decisions about timing of treatment initiation. METHODS: HIV-1-infected, HAART-naive children in Europe and the Americas were followed from 2002 through 2009 in PENPACT-1. Data from 162 vertically infected children, with at least World Health Organization “mild” immunosuppression and CD4% RESULTS: Seventy-two percent of baseline immunosuppressed children recovered to normal within 4 years. Compared with “severe” immunosuppression, more children with “mild” immunosuppression (difference 36%, 95% confidence interval [CI]: 22% to 49%) or “advanced” immunosuppression (difference 20.8%, 95% CI: 5.8% to 35.9%) recovered a normal CD4%. For each 5-year increase in baseline age, the proportion of children achieving a normal CD4% declined by 19% (95% CI: 11% to 27%). Combining baseline CD4% and age effects resulted in >90% recovery when initiating HAART with “mild” immunosuppression at any age or “advanced” immunosuppression at age CONCLUSIONS: Initiating HAART at higher CD4% and younger ages maximizes potential for immunologic recovery. Guidelines should weigh immunologic benefits against long-term risks.

Published
2014

26. Identifying the genetic basis for resistance to avian influenza in commercial egg layer chickens.

Author

Drobik-Czwarno, W., Wolc, A., Fulton, J. E., Arango, J., Jankowski, T., O’Sullivan, N. P., and Dekkers, J. C. M.

Abstract

Two highly pathogenic avian influenza (HPAI) outbreaks have affected commercial egg production flocks in the American continent in recent years; a H7N3 outbreak in Mexico in 2012 that caused 70% to 85% mortality and a H5N2 outbreak in the United States in 2015 with over 99% mortality. Blood samples were obtained from survivors of each outbreak and from age and genetics matched non-affected controls. A total of 485 individuals (survivors and controls) were genotyped with a 600 k single nucleotide polymorphism (SNP) array to detect genomic regions that influenced the outcome of highly pathogenic influenza infection in the two outbreaks. A total of 420458 high quality, segregating SNPs were identified across all samples. Genetic differences between survivors and controls were analyzed using a logistic model, mixed models and a Bayesian variable selection approach. Several genomic regions potentially associated with resistance to HPAI were identified, after performing multidimensional scaling and adjustment for multiple testing. Analysis conducted within each outbreak identified different genomic regions for resistance to the two virus strains. The strongest signals for the Iowa H5N2 survivor samples were detected on chromosomes 1, 7, 9 and 15. Positional candidate genes were mainly coding for plasma membrane proteins with receptor activity and were also involved in immune response. Three regions with the strongest signal for the Mexico H7N3 samples were located on chromosomes 1 and 5. Neuronal cell surface, signal transduction and immune response proteins coding genes were located in the close proximity of these regions. [ABSTRACT FROM AUTHOR]

Published
2018
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28. Mutual fund performance: measurement and evidence

Author

Cuthbertson, K., Nitzsche, D., and O'Sullivan, N.

Subjects
Persistence, Smart money, Mutual fund performance, HG
Abstract

The paper provides a critical review of empirical findings on the performance of mutual funds, mainly for the US and UK. Ex-post, there are around 0-5% of top performing UK and US equity mutual funds with truly positive-alpha performance (after fees) and around 20% of funds that have truly poor alpha performance, with about 75% of active funds which are effectively zero-alpha funds. Key drivers of relative performance are, load fees, expenses and turnover. There is little evidence of successful market timing. Evidence suggests past winner funds persist, when rebalancing is frequent (i.e., less than one year) and when using sophisticated sorting rules (e.g., Bayesian approaches) - but transactions costs (load and advisory fees) imply that economic gains to investors from winner funds may be marginal. The US evidence clearly supports the view that past loser funds remain losers. Broadly speaking results for bond mutual funds are similar to those for equity funds. Sensible advice for most investors would be to hold low cost index funds and avoid holding past 'active' loser funds. Only sophisticated investors should pursue an active ex-ante investment strategy of trying to pick winners - and then with much caution. © 2010 New York University Salomon Center and Wiley Periodicals, Inc.

Published
2010

29. False Discoveries: Winners and Losers in Mutual Fund Performance

Author

Cuthbertson, K., Nitzsche, D., and O'Sullivan, N.

Subjects
HG
Abstract

We use a multiple hypothesis testing framework to estimate the false discovery rate (FDR) amongst UK equity mutual funds. For all funds, we find a relatively high FDR for the best funds of 67% (at a 10% significance level), which indicates that only around 2% of all funds truly outperform their benchmarks. For the worst funds the FDR (at a 10% significance level), is relatively small at 15.9% which results in 20% of funds which truly underperform their benchmarks. For different investment styles, this pattern of very few genuine winner funds is repeated for all companies, small companies and equity income funds. However, forming portfolios of funds based on a set of funds for which the FDR is relatively low, produces positive alphas.

Published
2008

30. The Market Timing Ability of UK Equity Mutual Funds

Author

Cuthbertson, K., O'Sullivan, N., and Nitzsche, D.

Subjects
HG
Abstract

We apply a recent nonparametric methodology to test the market timing skills of UK equity mutual funds. The methodology has a number of advantages over the widely used regression based tests of Treynor-Mazuy (1966) and Henriksson-Merton (1981). We find a relatively small number of funds (around 1.5%) demonstrate positive market timing ability at a 5% significance level, while around 10-20% of funds exhibit negative (perverse) timing and most funds do not time the market. Our findings indicate that the few skillful market timers possess private market timing signals so their performance cannot be attributed to publicly available information. In terms of fund classifications, there are a small number of successful positive market timers amongst equity income and general equity funds, while a few small company funds time a small company rather than a broad market index. We also apply regression based tests of volatility timing and find evidence that a slightly larger (around 5%) of funds successful time market volatility.

Published
2007

31. Calpain inhibition mediates autophagy-dependent protection against polyglutamine toxicity

Author

Menzies, F M, primary, Garcia-Arencibia, M, additional, Imarisio, S, additional, O'Sullivan, N C, additional, Ricketts, T, additional, Kent, B A, additional, Rao, M V, additional, Lam, W, additional, Green-Thompson, Z W, additional, Nixon, R A, additional, Saksida, L M, additional, Bussey, T J, additional, O'Kane, C J, additional, and Rubinsztein, D C, additional

Published
2014
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37. Genetic variation at the tumour virus B locus in commercial and laboratory chicken populations assessed by a medium-throughput or a high-throughput assay

Author

Zhang, H. M., primary, Bacon, L. D., additional, Heidari, M., additional, Muir, W. M., additional, Groenen, M. A. M., additional, Zhang, Y., additional, Wong, G. K. S., additional, Fulton, J. E., additional, O'Sullivan, N. P., additional, Albers, G. A. A., additional, Vereijken, A. L. J., additional, Rattink, A. P., additional, Okimoto, R., additional, McKay, J. C., additional, McLeod, S., additional, and Cheng, H. H., additional

Published
2007
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39. Calpain inhibition mediates autophagy-dependent protection against polyglutamine toxicity.

Author

Menzies, F M, Garcia-Arencibia, M, Imarisio, S, O'Sullivan, N C, Ricketts, T, Kent, B A, Rao, M V, Lam, W, Green-Thompson, Z W, Nixon, R A, Saksida, L M, Bussey, T J, O'Kane, C J, and Rubinsztein, D C

Subjects
CALPAIN, POLYGLUTAMINE, CELL death, CELL physiology, DROSOPHILA, GENETIC overexpression
Abstract

Over recent years, accumulated evidence suggests that autophagy induction is protective in animal models of a number of neurodegenerative diseases. Intense research in the field has elucidated different pathways through which autophagy can be upregulated and it is important to establish how modulation of these pathways impacts upon disease progression in vivo and therefore which, if any, may have further therapeutic relevance. In addition, it is important to understand how alterations in these target pathways may affect normal physiology when constitutively modulated over a long time period, as would be required for treatment of neurodegenerative diseases. Here we evaluate the potential protective effect of downregulation of calpains. We demonstrate, in Drosophila, that calpain knockdown protects against the aggregation and toxicity of proteins, like mutant huntingtin, in an autophagy-dependent fashion. Furthermore, we demonstrate that, overexpression of the calpain inhibitor, calpastatin, increases autophagosome levels and is protective in a mouse model of Huntington's disease, improving motor signs and delaying the onset of tremors. Importantly, long-term inhibition of calpains did not result in any overt deleterious phenotypes in mice. Thus, calpain inhibition, or activation of autophagy pathways downstream of calpains, may be suitable therapeutic targets for diseases like Huntington's disease. [ABSTRACT FROM AUTHOR]

Published
2015
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44. The Scottish economy [July 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

It seems that the level of economic activity in Scotland has passed its nadir, and that a slow recovery is under way. Among the forces stimulating recovery are overseas exports, stockbuilding, and the acceleration of manufacturing production in the rest of the UK. As the recovery gains force one can expect the underlying upward trend in unemployment to level off. Two factors will constrain any reduction in unemployment, however. Firstly, there is the problem, obvious from the July unemployment figures, of the absorption of school leavers into the workforce. There is now a strong case for an extension of the job creation programme to continue to act as a 'buffer' between full-time education and full-time employment. Secondly, further cuts in public expenditure, especially if they occur in housing or construction will to some extent counterbalance any reduction in unemployment through expansion in the private sector.

Published
1976

45. The Scottish economy [April 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

The first quarter of 1976 has seen a slowing down in the rate of increase of unemployment, of prices, and of unit costs, the flattening out of output and healthier order books. The principal factors in bringing about this relative improvement have been a reduced rate of de-stocking and a better export performance. These generalisations, however, conceal wide disparities of experience among sectors. The greater variation in the state of business expectations and confidence which we anticipated in our last Commentary was confirmed by the latest CBI Industrial Trends survey. For a number of industries, both domestic and export, order books showed a distinct improvement in the last quarter of 1975.

Published
1976

46. Summary [July 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

Unless there is a major initiative in government economic policy, leading to a substantial and permanent increase in the level of productive investment in both the public and the private sectors, the outlook for the Scottish economy in 1977 and 1978 is a bleak one. In the absence of any such increases, then the most likely outcome of existing and forseeable trends is that the present mild recovery will fade away by the first half of 1977, and thus that unemployment will not fall below the 120 thousand level until sometime in 1978 or even 1979.

Published
1976

47. Summary [April 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

While different countries are now emerging from the recession at different rates, there are unmistakable signs of a slow but steady recovery in world trade and production. Particularly substantial evidence of progress is coming from the United States and West Germany, the stimulus in both countries coming largely from an increase in consumer spending. It is clear that the monetary authorities' in both countries are following a policy of cautious expansion, which is calculated to further moderate the rate of domestic price increases. It seems unlikely, however, that unemployment will fall much below its present high levels before the end of the year.

Published
1976

48. General review [April 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

There are now unmistakable signs of a sustained recovery in world trade and production. Both the imports and the exports of the leading industrialised countries in February were substantially above their level of twelve months previously. It may reasonably be expected that world trade as a whole will expand by about 7% in real terms this year Different countries are emerging from the recession at different rates: amongst the first to emerge clearly from the recession has been the United States. In the UK, the fall in total output which began in the fourth quarter of 1974 appears to have ended. Each of the three measures of GDP increased in the fourth quarter of 1975, the output measure by a little over 1/2%. During 1975 real living standards fell by around 4%, despite an increased share of wages and salaries in total money income during the year.

Published
1976

49. Review of the quarter's economic trends [July 1976]

Author

Carruth, Alan, O'Sullivan, N., and Fraser of Allander Institute

Subjects
HD, HF, HB
Abstract

The initial recovery phase of the leading economies in the second half of 1975 occurred at a fairly leisurely pace compared to past experience of the upturn. However, the first quarter of 1976 has seen industrial production expanding rapidly in most countries, with an expected rise of 10% over the same period last year. This increases momentum in the world economy has led to revision of official forecasts of many important indicators. The volume of world trade is now expected to rise by 10% this year. Total output, which fell by 1 ½% last year, should increase by 5% this year. Inflation in most countries is now in single figures on an annual rate basis. Profit levels have improved considerably: so far there is little evidence of a recovery in investment in plant and machinery.

Published
1976

50. Enthesiale Veraenderungen (Entheseal changes), In: Neue Erkenntnisse zur frühmittelalterlichen Separatgrablege von Niederstotzingen, Kreis Heidenheim (New results from the cemetery of Niederstotzingen)

Author

Speith, Nivien, Wahl, J., Quast, D., Zink, A., Price, D., Maixner, F., Francken, M., Cipollini, G., Coia, V., Harvati-Papatheodorou, K., Kim, M-R., O'Sullivan, N., Speith, Nivien, Wahl, J., Quast, D., Zink, A., Price, D., Maixner, F., Francken, M., Cipollini, G., Coia, V., Harvati-Papatheodorou, K., Kim, M-R., and O'Sullivan, N.

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