520 research outputs found

    Securitizing democracy and democratic security: A reflection on democratization studies

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    The Influence of a Morton\u27s Foot on Arch Characteristics in Minimally-Shod Runners

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    Please refer to the pdf version of the abstract located adjacent to the title

    Evolving Towards Military Innovation:AI and the Australian Army

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    Established theory views military innovation as extraordinarily difficult, resulting in painful if infrequent revolutionary transformations. This article presents a divergent view, in which military innovation occurs progressively in an evolutionary fashion. Drawing on New Institutionalism and the Sociology of Science and Technology, we explore processes of professional debate and consensus-building among military officers, which can lead to evolutionary innovation. Examining the future application of artificial intelligence to command-and-control in the Australian Army, we find that officer attitudes to automation are rooted in shared experience of existing digitisation programmes, creating an emergent consensus over the evolutionary trajectory of future military innovation

    The link between corporate governance and sustainability: Evidence from the oil and gas industry

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    Effects of Mitochondria-Targeted Antioxidants on Real-time Blood Nitric Oxide and Hydrogen Peroxide Release in Hind Limb Ischemia and Reperfusion

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    In the body, reperfusion of ischemic tissue with blood causes the release of reactive oxygen species (ROS), in part, from damaged mitochondria leading to endothelial and organ dysfunction. Endothelial dysfunction occurs within 5 min of reperfusion, is common to all vascular beds, and is characterized by increased hydrogen peroxide (H2O2) and decreased nitric oxide (NO) levels in the blood that further exacerbate reperfusion injury. Previous studies have shown that promoting endothelial NO synthase coupling during reperfusion increases blood NO and decreases blood H2O2 levels in hind limb I/R and attenuates myocardial I/R injury (1). This study specifically examines the effects mitochondria-targeted antioxidants, mitoquinone (mitoQ; Fig. 1), a cell permeable coenzyme Q analogue or SS-31 ((D-Arg)-Dmt-Lys-Phe-Amide; Genemed Synthesis, San Antonio, TX) (Fig.1), a cell permeable peptide, on inhibiting H2O2 release and increasing NO bioavailability in hind limb I/R. MitoQ (2) and SS-31 (3,4) are able to concentrate into the inner mitochondrial membrane via an electrical potential gradient or selective diffusion respectively, where they attenuate superoxide and subsequent H2O2 production thus allowing a concurrent increase in NO bioavailability

    European organizations and minority rights in Europe: on transforming the securitization dynamic

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    Minority rights conditionality has been seen by scholars as a key part of the EU enlargement process. While the focus on minority rights has largely been discussed in terms of democracy and even human rights, this article argues that conditionality was a result of the securitization of minorities rather than part of an agenda to protect or empower. In this article, we look at the methods of desecuritization as factors of ‘narratives, norms and nannies’. In response to Paul Roe’s conclusions about the impossibility of desecuritizing societal security, we examine whether the EU, the Organization for Security and Co-operation in Europe (OSCE) and the Council of Europe have the ability to change the societal dynamics among ethnic groups in such a way as to make the desecuritization of societal security more likely. Overall, we illustrate how a focus on ‘deconstructivist’ and ‘constructivist’ approaches to societal security has failed to make European organizations important transformative actors in interethnic relations.</jats:p

    A Hybrid Lagrangian Variation Method for Bose-Einstein Condensates in Optical Lattices

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    Solving the Gross--Pitaevskii (GP) equation describing a Bose--Einstein condensate (BEC) immersed in an optical lattice potential can be a numerically demanding task. We present a variational technique for providing fast, accurate solutions of the GP equation for systems where the external potential exhibits rapid varation along one spatial direction. Examples of such systems include a BEC subjected to a one--dimensional optical lattice or a Bragg pulse. This variational method is a hybrid form of the Lagrangian Variational Method for the GP equation in which a hybrid trial wavefunction assumes a gaussian form in two coordinates while being totally unspecified in the third coordinate. The resulting equations of motion consist of a quasi--one--dimensional GP equation coupled to ordinary differential equations for the widths of the transverse gaussians. We use this method to investigate how an optical lattice can be used to move a condensate non--adiabatically.Comment: 16 pages and 1 figur

    Porcine Circovirus type 2 (PCV2) causes apoptosis in experimentally inoculated BALB/c mice

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    BACKGROUND: We have previously described microscopic and electron microscopic alterations in lymphoid organs of PCV2 inoculated mice as apoptosis. In this study we wanted to investigate the molecular pathogenetic mechanism of PCV2-induced apoptosis. Eight-week old BALB/c mice were either sham inoculated (control mice) or inoculated intraperitoneally (ip) and intranasally (in) with a single (sPCV mice) or multiple (mPCV mice) doses of PCV2. Four control mice and 4 sPCV mice were sacrificed 7, 14, 28 and 42 days post inoculation (PI). All 4 mPCV mice were sacrificed 42 days PI. Following necropsy, immunohistochemistry for caspase 3 and in-situ TUNEL assay were performed on sections of spleen, lymph nodes, thymus and ileum from control, sPCV and mPCV mice. In addition, total RNA was extracted from spleens of control, sPCV and mPCV mice for simultaneous detection and semiquantitation of bcl-2 homologues and various caspase mRNAs using a multiprobe RNase protection assay system. RESULTS: PCV2 replicated and was associated with apoptosis in spleens, lymph nodes and Peyer's patches of infected BALB/c mice. Upregulation of caspase 1, 2, 3, 6, 7, 8, 11 and 12 and upregulation for the transcripts of apoptosis inhibitors bcl-2, bcl-w and bcl-X and apoptosis promoters' bax, bak and bad was detected in spleens of sPCV and mPCV mice, but not control mice. Apoptosis was further confirmed by light and electron microscopic morphology as well as by positive TUNEL assay and detection of activated caspase 3. PCV2 nucleic acid was detected by in-situ hybridization in the nuclei and cytoplasm of such apoptotic cells. CONCLUSION: The data presented here support the hypothesis that PCV2 induces apoptosis mediated through the activation of caspases 8 and 3 in the spleens of infected mice
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