2,027 research outputs found

    Hidden in plain sight: Perceptions and experiences of corruption in New South Wales local government

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    This thesis explores the relationship between perceptions and experiences of corruption within local government entities (councils) in New South Wales (NSW) from a social policy perspective. The literature on corruption and anti-corruption has evolved exponentially in the past three decades, with much focus on how to define, measure and regulate this complex phenomenon. Yet, limited attention has been paid to corruption within the administration of local government, where day-to-day services affect the lives of all residents within Australia's most populous state. The thesis shows how local council practices, cultures and structures impact on the visibility and subsequent management of corruption in its different guises. While some forms of corruption are outwardly visible, others take place in plain sight, but are very much hidden. This research took the form of a mixed methods study undertaken between 2015 and 2016. Through synthesisation of data gleaned from an attitudinal survey completed by frontline workers across ten different council entities in NSW, and from semi-structured interviews held with a small sample of individuals who have experience and expertise in governing corruption, the research identified divergences between perceptions and experiences of, and regulatory responses to, corruption. It highlighted the ambivalent outcomes of corruption management strategies, both in terms of their comparative successes and unintended consequences. The research identified that the discourse of corruption is largely informed and mediated by external influencers, such as the NSW Independent Commission Against Corruption (ICAC) and tabloid media, the former focusing on the investigation and exposure of high-profile matters, and the latter representing such examples in sensationalised ways. This has created something of a disconnect between how corruption is popularly understood (in terms of what it is and is not) and how it is then situationally encountered and interpreted in the workplace. When first-hand experiences of corrupt practices were explored with participants, it was revealed that certain lower threshold practices (termed as 'mundane corruption') have been frequently observed. Such practices have become institutionalised as normal, in spite of the different modes of regulatory management that are deemed to be effective, and a broad view that the level of corruption in local government is low. Many suspicions of corruption have not been raised or pursued. Of those that have, many have been met with an inadequate or unconvincing response, attributed to the organisational architecture and culture, and perceptions that certain corrupt practices must breach a given threshold of severity to be reportable and then actioned. Overall, this thesis makes a significant contribution to corruption studies by showing how popular, if reductionist, frameworks of corruption, shaped by key institutions in society, mediate everyday perceptions, understandings and practices of corruption. These frameworks can, and do, affect the prevention and management of this complex social activity. A more holistic approach to understanding organisational corruption is recommended across the domains of research, education, regulation and policy, so that optimal strategies of prevention and management can be co-designed and co-delivered

    CEQE: Contextualized Embeddings for Query Expansion

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    In this work we leverage recent advances in context-sensitive language models to improve the task of query expansion. Contextualized word representation models, such as ELMo and BERT, are rapidly replacing static embedding models. We propose a new model, Contextualized Embeddings for Query Expansion (CEQE), that utilizes query-focused contextualized embedding vectors. We study the behavior of contextual representations generated for query expansion in ad-hoc document retrieval. We conduct our experiments on probabilistic retrieval models as well as in combination with neural ranking models. We evaluate CEQE on two standard TREC collections: Robust and Deep Learning. We find that CEQE outperforms static embedding-based expansion methods on multiple collections (by up to 18% on Robust and 31% on Deep Learning on average precision) and also improves over proven probabilistic pseudo-relevance feedback (PRF) models. We further find that multiple passes of expansion and reranking result in continued gains in effectiveness with CEQE-based approaches outperforming other approaches. The final model incorporating neural and CEQE-based expansion score achieves gains of up to 5% in P@20 and 2% in AP on Robust over the state-of-the-art transformer-based re-ranking model, Birch

    Establishment guide for sub-tropical grasses : key steps to success

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    Sub-tropical perennial grasses are now widely sown in the Northern Agricultural region (NAR) and on the south coast of Western Australia (WA). Since 2000, more than 50 000 ha have been sown to perennial grasses in the NAR and about 150 000 ha on the south coast, mainly kikuyu.https://researchlibrary.agric.wa.gov.au/bulletins/1034/thumbnail.jp

    CEQE: Contextualized Embeddings for Query Expansion

    Get PDF
    In this work we leverage recent advances in context-sensitive language models to improve the task of query expansion. Contextualized word representation models, such as ELMo and BERT, are rapidly replacing static embedding models. We propose a new model, Contextualized Embeddings for Query Expansion (CEQE), that utilizes query-focused contextualized embedding vectors. We study the behavior of contextual representations generated for query expansion in ad-hoc document retrieval. We conduct our experiments on probabilistic retrieval models as well as in combination with neural ranking models. We evaluate CEQE on two standard TREC collections: Robust and Deep Learning. We find that CEQE outperforms static embedding-based expansion methods on multiple collections (by up to 18% on Robust and 31% on Deep Learning on average precision) and also improves over proven probabilistic pseudo-relevance feedback (PRF) models. We further find that multiple passes of expansion and reranking result in continued gains in effectiveness with CEQE-based approaches outperforming other approaches. The final model incorporating neural and CEQE-based expansion score achieves gains of up to 5% in P@20 and 2% in AP on Robust over the state-of-the-art transformer-based re-ranking model, Birch

    Standard Model Extension and Casimir effect for fermions at finite temperature

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    AbstractLorentz and CPT symmetries are foundations for important processes in particle physics. Recent studies in Standard Model Extension (SME) at high energy indicate that these symmetries may be violated. Modifications in the lagrangian are necessary to achieve a hermitian hamiltonian. The fermion sector of the standard model extension is used to calculate the effects of the Lorentz and CPT violation on the Casimir effect at zero and finite temperature. The Casimir effect and Stefan–Boltzmann law at finite temperature are calculated using the thermo field dynamics formalism

    Sensationalism made real : the role of realism in the production of sensational affect

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    Like all complicated relationships, that between realism and sensationalism has been subject to a good deal of rumour and speculation. In what might be described as the pair's first critical encounter – in an 1852 joint review of W. M. Thackeray's The History of Henry Esmond and Wilkie Collins's proto-sensation novel Basil – a critic for Bentley's Miscellany intimates that a partnership between two such different forms is anything but likely. “We have,” he explains, “put these two books ‘over against’ each other, to use one of Mr. Thackeray's favourite Queen-Anne-isms, because they have no kind of family resemblance. They are, indeed, as unlike each other as any two books can be. They constitute a kind of literary antithesis” (“Esmond” 576). The inherently contradictory nature of this originary “over against” gesture – conflating proximity and distance, contiguity and difference – sets the keynote for subsequent discussions, contemporaneous and current, of a generic relationship that continues to attract and elude definition

    Patterns, receptors and signals:regulation of phagosome maturation

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    Recognition of microbial pathogens and dead cells and their phagocytic uptake by specialized immune cells are essential to maintain host homeostasis. Phagosomes undergo fusion and fission events with endosomal and lysosomal compartments, a process called 'phagosome maturation', which leads to the degradation of the phagosomal content. However, many phagocytic cells also act as antigen-presenting cells and must balance degradation and peptide preservation. Emerging evidence indicates that receptor engagement by phagosomal cargo, as well as inflammatory mediators and cellular activation affect many aspects of phagosome maturation. Unsurprisingly, pathogens have developed strategies to hijack this machinery, thereby interfering with host immunity. Here, we highlight progress in this field, summarize findings on the impact of immune signals, and discuss consequences for pathogen elimination

    Protein expression of the gp78 E3 ligase predicts poor breast cancer outcome based on race

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    Women of African ancestry suffer higher rates of breast cancer mortality compared with all other groups in the United States. Though the precise reasons for these disparities remain unclear, many recent studies have implicated a role for differences in tumor biology. Using an epitope-validated antibody against the endoplasmic reticulum-associated E3 ligase, gp78, we show that elevated levels of gp78 in patient breast cancer cells predict poor survival. Moreover, high levels of gp78 are associated with poor outcomes in both ER+ and ER- tumors, and breast cancers expressing elevated amounts of gp78 protein are enriched in gene expression pathways that influence cell cycle, metabolism, receptor-mediated signaling, and cell stress response pathways. In multivariate analysis adjusted for subtype and grade, gp78 protein is an independent predictor of poor outcomes in women of African ancestry. Furthermore, gene expression signatures, derived from patients stratified by gp78 protein expression, are strong predictors of recurrence and pathological complete response in retrospective clinical trial data and share many common features with gene sets previously identified to be overrepresented in breast cancers based on race. These findings implicate a prominent role for gp78 in tumor progression and offer insights into our understanding of racial differences in breast cancer outcomes.Fil: Singhal, Sandeep K.. No especifĂ­ca;Fil: Byun, Jung S.. National Institutes of Health; Estados UnidosFil: Yan, Tingfen. National Institutes of Health; Estados UnidosFil: Yancey, Ryan. Columbia University; Estados UnidosFil: Caban, Ambar. Columbia University; Estados UnidosFil: Hernandez, Sara Gil. National Institutes of Health; Estados UnidosFil: Bufford, Sediqua. No especifĂ­ca;Fil: Hewitt, Stephen M.. No especifĂ­ca;Fil: Winfield, Joy. Columbia University; Estados UnidosFil: Pradhan, Jaya. Columbia University; Estados UnidosFil: Mustkov, Vesco. Columbia University; Estados UnidosFil: McDonald, Jasmine A.. No especifĂ­ca;Fil: PĂ©rez Stable, Eliseo J.. National Institutes of Health; Estados UnidosFil: NĂĄpoles, Anna MarĂ­a. National Institutes of Health; Estados UnidosFil: Vohra, Nasreen. No especifĂ­ca;Fil: de Siervi, Adriana. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Instituto de BiologĂ­a y Medicina Experimental. FundaciĂłn de Instituto de BiologĂ­a y Medicina Experimental. Instituto de BiologĂ­a y Medicina Experimental; ArgentinaFil: Yates, Clayton. No especifĂ­ca;Fil: Davis, Melissa B.. No especifĂ­ca;Fil: Yang, Mei. No especifĂ­ca;Fil: Tsai, Yien Che. No especifĂ­ca;Fil: Weissman, Allan M.. No especifĂ­ca;Fil: Gardner, Kevin. Columbia University; Estados Unido
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