78 research outputs found

    What is being done to deter ambush marketing? Are these attempts working?

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    This paper examines industry responses in Australasia and Europe to the growing practice of ambush marketing, to establish whether the measures that have been put in place to deter the practice have indeed prevented the ‘ambush’ effect, whereby audiences associate non-sponsoring organisations with particular sporting events. Although some of these measures may be more effective than others in blocking ambush attempts, they also come with potentially negative consequences for event sponsors

    ϒ production in p–Pb collisions at √sNN=8.16 TeV

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    ϒ production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision √sNN = 8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, down to zero transverse momentum. In this work, results on the ϒ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the ϒ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the ϒ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the ϒ(1S). A first measurement of the ϒ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at √sNN = 5.02 TeV and with theoretical calculations.publishedVersio

    Reaction of Peroxomonosulfate Radical with Manganese(II) in Acidic Aqueous Solution. A Pulse Radiolysis Study

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    The reaction between the SO5– radical and MnII has been proposed to be the most important process for regeneration of MnIII in the MnIII/II-catalysed autoxidation of SIV in acidic aqueous solution. In the present study, the second-order rate constant for this reaction has been determined at pH 3. 0 and 10 mmol dm–3 ionic strength by use of pulse radiolysis. The study was performed in the presence of excess SIV. Under these conditions MnII is distributed among the complexes Mn2+(aq), [Mn(HSO3)]+ and [Mn(SO3)Mn]2+. The rate of reaction decreases as a function of increasing [MnII]total which is rationalized qualitatively by a mechanism involving three parallel reactions between SO5– and the MnII complexes, with rate constants k16, k17 and k18, respectively. Mn2++ SO5– [graphic omitted] Mn3++ HSO5–(16), [Mn(HSO3)]++ SO5– [graphic omitted] [Mn(HSO3)]2+ HSO5–(17), [Mn(SO3)Mn]2++ SO5– [graphic omitted] [Mn(SO3)Mn]3++ HSO5–(18), For increasing total concentrations of MnII, formation of the sulfito-bridged complex is favoured which implies that k18 < k16, k17. Values of the second-order rate constant in the range 2 × 10 108–2 × 1010 dm3 mol–1 s–1 have been determined, depending on which MnII species is predominant. Subsequent slow processes are observed following the formation of MnIII. These reactions have been attributed to the disproportionation of MnIII and reactions between the MnIII species and excess SIV. The implications of the present results for the MnIII/II catalysed autoxidation of SIV are discussed

    1971 - 1974

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    Genome-wide association analysis identifies three new susceptibility loci for childhood body mass index

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    A large number of genetic loci are associated with adult body mass index. However, the genetics of childhood body mass index are largely unknown.We performed a meta-analysis of genome-wide association studies of childhood body mass index, using sex- and age-adjusted standard deviation scores.We included 35 668 children from 20 studies in the discovery phase and 11 873 children from 13 studies in the replication phase. In total, 15 loci reached genome-wide significance (P-value < 5 × 10-8) in the joint discovery and replication analysis, of which 12 are previously identified loci in or close to ADCY3, GNPDA2, TMEM18, SEC16B, FAIM2, FTO, TFAP2B, TNNI3K, MC4R, GPR61, LMX1B and OLFM4 associated with adult body mass index or childhood obesity. We identified three novel loci: rs13253111 near ELP3, rs8092503 near RAB27B and rs13387838 near ADAM23. Per additional risk allele, body mass index increased 0.04 Standard Deviation Score (SDS) [Standard Error (SE) 0.007], 0.05 SDS (SE 0.008) and 0.14 SDS (SE 0.025), for rs13253111, rs8092503 and rs13387838, respectively. A genetic risk score combining all 15 SNPs showed that each additional average risk allele was associated with a 0.073 SDS (SE 0.011, P-value = 3.12 × 10-10) increase in childhood body mass index in a population of 1955 children. This risk score explained 2% of the variance in childhood body mass index. This study highlights the shared genetic background between childhood and adult body mass index and adds three novel loci. These loci likely represent age-related differences in stren
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