1,483 research outputs found

    Tetrahedral and Triangular Deformations of Z=NZ=N Nuclei in Mass Region A6080A \sim 60-80

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    We study static non-axial octupole deformations in proton-rich Z=NZ=N nuclei, 64^{64}Ge, 68^{68}Se, 72^{72}Kr, 76^{76}Sr, 80^{80}Zr and 84^{84}Mo, by using the Skyrme Hartree-Fock plus BCS calculation with no restrictions on the nuclear shape. The calculation predicts that the oblate ground state in 68^{68}Se is extremely soft for the Y33Y_{33} triangular deformation, and that in 80^{80}Zr the low-lying local minimum state coexisting with the prolate ground state has the Y32Y_{32} tetrahedral deformation.Comment: 8 pages, 4 Postscript figures, REVTE

    Suits to Robes: A study of Free Jazz Fashion

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    This presentation examines the presence and significance of African-derived clothing styles among Jazz musicians in the 1960’s and 1970’s. The study primarily focuses on musicians associated with progressive strains of the musical form, such as Free Jazz. The publically expressed beliefs and cultural involvement of some musicians who performed in avant-garde styles during this politically and artistically tumultuous period indicate their support and promotion of the general mindset of African-American Cultural Nationalism with their choice of clothing. Using Wenger’s theory of Communities of Practice, a study of the discography of many free jazz artists shows how these musicians, working in a non-verbal form of expression, made a political statement through their choice of clothing in a show of solidarity with the African-American Cultural Nationalist movement

    Spectroscopy of 54^{54}Ti and the systematic behavior of low energy octupole states in Ca and Ti isotopes

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    Excited states of the N=32N=32 nucleus 54^{54}Ti have been studied, via both inverse-kinematics proton scattering and one-neutron knockout from 55^{55}Ti by a liquid hydrogen target, using the GRETINA γ\gamma-ray tracking array. Inelastic proton-scattering cross sections and deformation lengths have been determined. A low-lying octupole state has been tentatively identified in 54^{54}Ti for the first time. A comparison of (p,p)(p,p') results on low-energy octupole states in the neutron-rich Ca and Ti isotopes with the results of Random Phase Approximation calculations demonstrates that the observed systematic behavior of these states is unexpected.Comment: 7 pages, 8 figure

    News discourses on distant suffering: A critical discourse analysis of the 2003 SARS outbreak

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    News carries a unique signifying power, a power to represent events in particular ways (Fairclough, 1995). Applying Critical Discourse Analysis and Chouliaraki's theory on the mediation of suffering (2006), this article explores the news representation of the 2003 global SARS outbreak. Following a case-based methodology, we investigate how two Belgian television stations have covered the international outbreak of SARS. By looking into the mediation of four selected discursive moments, underlying discourses of power, hierarchy and compassion were unraveled. The analysis further identified the key role of proximity in international news reporting and supports the claim that Western news media mainly reproduce a Euro-American centered world order. This article argues that news coverage of international crises such as SARS constructs and maintains the socio-cultural difference between 'us' and 'them' as well as articulating global power hierarchies and a division of the world in zones of poverty and prosperity, danger and safety

    Spectroscopy of 54^{54}Ti and the systematic behavior of low energy octupole states in Ca and Ti isotopes

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    Excited states of the N=32N=32 nucleus 54^{54}Ti have been studied, via both inverse-kinematics proton scattering and one-neutron knockout from 55^{55}Ti by a liquid hydrogen target, using the GRETINA γ\gamma-ray tracking array. Inelastic proton-scattering cross sections and deformation lengths have been determined. A low-lying octupole state has been tentatively identified in 54^{54}Ti for the first time. A comparison of (p,p)(p,p') results on low-energy octupole states in the neutron-rich Ca and Ti isotopes with the results of Random Phase Approximation calculations demonstrates that the observed systematic behavior of these states is unexpected.Comment: 7 pages, 8 figure

    Extreme alpha-clustering in the 18O nucleus

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    The structure of the 18O nucleus at excitation energies above the alpha decay threshold was studied using 14C+alpha resonance elastic scattering. A number of states with large alpha reduced widths have been observed, indicating that the alpha-cluster degree of freedom plays an important role in this N not equal Z nucleus. However, the alpha-cluster structure of this nucleus is very different from the relatively simple pattern of strong alpha-cluster quasi-rotational bands in the neighboring 16O and 20Ne nuclei. A 0+ state with an alpha reduced width exceeding the single particle limit was identified at an excitation energy of 9.9+/-0.3 MeV. We discuss evidence that states of this kind are common in light nuclei and give possible explanations of this feature.Comment: 4 pages, 2 figures, 1 table. Resubmission with minor changes for clarity, including removal of one figur

    Paedophiles in the community: inter-agency conflict, news leaks and the local press

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    This article explores the leaking of confidential information about secret Home Office plans to house convicted paedophiles within a local community (albeit inside a prison). It argues that a politics of paedophilia has emerged in which inter-agency consensus on the issue of ‘what to do’ with high-profile sex offenders has broken down. Accordingly, the article situates newspaper ‘outing’ of paedophiles in the community in relation to vigilante journalism and leaked information from official agencies. The article then presents research findings from a case study of news events set in train following a whistle-blowing reaction by Prison Officers’ Association officials to Home Office plans. Drawing from a corpus of 10 interviews with journalists and key protagonists in the story, the article discusses both the dynamics of whistle blowing about paedophiles and also what happens after the whistle has blown
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