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(1999)Journal ArticleThe advent of public-sector managerialism has brought with it a new principle of police accountability in Western democracies such as Australia and Britain. The new accountability gives emphasis to managerial rather than legal or public-interest standards, favours external oversight combined with self-regulation rather than centralized control, and promotes risk management rather than rule enforcement. This article makes use of the experience of an Australian police force to show that the new accountability has not been successful in holding police accountable, while elements of the old accountability have re-emerged to dominate public debates. It is argued that in the area of police governance, the neo-liberal state does not necessarily pursue a coherent strategy of 'acting at a distance' (cf. Miller and Rose 1990), partly because of the inability of accountability technologies to deliver substantially the promised policy outcomes and partly because of the sensitivity of its political arm to the public's moral outrage against corruption (cf. Garland 1 996).
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(1999)Journal ArticleThe influence of the flux flow on a.c. loss and magnetic penetration process in superconductors has been investigated. Asymptotic solutions of magnetic and electric fields and a.c. loss are presented in the form of a power series of [Lambda], the normalized frequency of the external a.c. magnetic field. The results show that the flux flow retards the response of inner magnetic field to the external one, which results in a deviation from the critical state model and a non-hysteretic loss. In the cases of H0>Hp, the deviation from the critical state is in the order of the second power of [Lambda]. The induced electric field and the macro-penetration depth are decreased by the slowdown of the flux movement, giving a negative contribution to the a.c. loss. However, the negative contribution is compensated by the increase of the current density, leading to a net increase of the a.c. loss. As a result, the a.c. loss exhibits a positive dependence on the frequency and the amplitude of the external magnetic field.
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(1999)Journal ArticleLow-temperature thermal expansion and its correlation with oxygen nonstoichiometry have been studied for Bi1.7Pb0.3Sr2Ca2Cu3O10+y samples. An anomalously big jump of the thermal expansion in the c direction of Bi1.7Pb0.3Sr2Ca2Cu3O10+y has been observed at a temperature slightly above the superconductivity transition temperature. The corresponding temperature and the magnitude of the jump are found to be correlated with the oxygen nonstoichiometry, carrier concentration and superconductivity. The results reveal that the anomalously big jump of the thermal expansion is an electron-assisted lattice softening transition. Its correlation with the superconductivity suggests that phonon-electron interaction still plays a certain role in the superconductivity in high-Tc cuprates.
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(1999)ReportGay Community Periodic Surveys surveys are regularly conducted in Sydney, Melbourne, Brisbane, Cairns, Canberra, Adelaide and Perth to monitor changes in sexual and other risk practices over time among Australian gay men who are gay community attached, recruited from gay sex-on-premises venues, social sites and clinics.
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(1999)Journal Article
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