11,111 research outputs found

    Flight crew aiding for recovery from subsystem failures

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    Some of the conceptual issues associated with pilot aiding systems are discussed and an implementation of one component of such an aiding system is described. It is essential that the format and content of the information the aiding system presents to the crew be compatible with the crew's mental models of the task. It is proposed that in order to cooperate effectively, both the aiding system and the flight crew should have consistent information processing models, especially at the point of interface. A general information processing strategy, developed by Rasmussen, was selected to serve as the bridge between the human and aiding system's information processes. The development and implementation of a model-based situation assessment and response generation system for commercial transport aircraft are described. The current implementation is a prototype which concentrates on engine and control surface failure situations and consequent flight emergencies. The aiding system, termed Recovery Recommendation System (RECORS), uses a causal model of the relevant subset of the flight domain to simulate the effects of these failures and to generate appropriate responses, given the current aircraft state and the constraints of the current flight phase. Since detailed information about the aircraft state may not always be available, the model represents the domain at varying levels of abstraction and uses the less detailed abstraction levels to make inferences when exact information is not available. The structure of this model is described in detail

    Mentoring to reduce antisocial behaviour in childhood

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    The effects of social interventions need to be examined in real life situations as well as studie

    Fan Fiction and the Trojan War: Contemporary Euripidean Perspective on the Treatment of Enslaved Women in The Silence of the Girls, A Thousand Ships, and For the Most Beautiful

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    This study examines three contemporary novels of fan fiction, authored by women, that retell the Trojan War: Emily Hauser’s For the Most Beautiful (2016), Pat Barker’s The Silence of the Girls (2018), and Nathalie Haynes’ A Thousand Ships (2019). This study offers a reading of contemporary Homeric reception by analyzing the conversations that the novels initiate between each other, Homer’s Iliad, and Euripides’ tragedies, Hecuba (424 BCE) and Trojan Women (415 BCE). The study establishes a connection between the three authors and Euripides by treating the novels as works of fan fiction. In so doing, the study identifies aspects of Homer’s Iliad that Hauser, Barker, and Haynes find lacking, namely reductive ideas of the “heroic” and Achilles’ achievement of glory through battle. The authors adopt a reading of Achilles in the Iliad that suggests these ideas carry with them consequences for women that Homer either overlooks or underrepresents. In undermining these Homeric ideals, the three authors incorporate aspects of Euripides in their representation of tragic ideas to differing degrees, which reveal distinct messages in each novel. Further, the study argues that the novels’ portrayals of Briseis’ and Hecuba’s experiences and the messages evoked reflect growing cultural concerns of sexual violence and calls for female empowerment prevalent during the Trump administration and representative of the #MeToo movement, both of which were transpiring at the time of the publication of these novels. This study’s view of the reception of Homer by the novelists offers a reflection on self and society for twenty-first century readers of Homer and Euripides

    Cross-Cultural Queer Encounters: Women, Nation and Queer Culture in Contemporary Spanish Narrative and Film

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    This dissertation focuses on queer representations of female immigration and travel to and from Spain in contemporary Spanish literature and film from the late 1990s to the present. Through an intersectional analysis that considers race, class, gender and sexuality, I build on the work of scholars who explore the representation of lesbian identity and experiences in contemporary Spanish cultural production. It is my goal to demonstrate the various ways migration and sexuality transverse in more recent works and are intrinsically connected to constructions of Spanish national identity. To this end, I analyze the work of a diverse group of writers and directors, ranging from self-identified lesbian authors such as Mabel Galán, Libertad Morán and Illy Nes to critically acclaimed male directors such as Julio Medem and Fernando León de Aranoa. I examine how these works closely engage with the officially celebrated modernization process in Spain from the early 1990s onward as well as the country’s integration into Europe. As a whole, I argue that these cultural productions reveal the socio-economic and racial hierarchies still at play in Spain’s celebrated “rainbow society.” Additionally, I propose that these works provide a means for questioning globalizing discourses of sexuality and expressions of LGBT liberation across lines of race and ethnicity. Through my analysis, I aim to situate these works within the broader socio-political changes and developments in contemporary Spain as well as question the assumption that cultural, national and sexual identity are fixed entities

    Bennett v. Plenert: Using the Zone-of-Interests Test to Limit Standing under the Endangered Species Act

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    Welfare Reform and Lone Mothers Employment in the US

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    The Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) of 1996 represents a dramatic change in the US welfare state. One of its key goals was to move lone mothers, even those with young children, from welfare to work. Early evidence suggests that, in concert with a strong economy, progress has been made - welfare caseloads have fallen dramatically and the employment rates of lone mothers have increased substantially. In addition to the federal reforms, state level welfare reforms played an important role prior to 1996 and are playing an even more important role subsequent to 1996 as PRWORA gives states unprecedented flexibility in designing and implementing their welfare systems. In this paper, we examine some key state-level reforms, using evidence from selected states, to illustrate the three major types of policies used in the US to move lone mothers from welfare to work: mandating work (Michigan); making work pay (Michigan and Minnesota); and helping families with child care (Illinois). We conclude that each of these policies has a role to play in moving lone mothers from welfare to work, but that further policies are needed if the US is to also to do a better job of reducing child poverty.welfare, lone mothers, employment

    Residual Stress Mechanisms in Aluminum Oxide Films Grown by MOCVD

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    Residual stresses in amorphous aluminium oxide films were investigated with in situ wafer curvature measurements. The films were deposited from aluminium tri-isopropoxide, on sapphire substrates. Large tensile stresses of 1-2 GPa occurred during growth. These values are well above the fracture stress in bulk materials, but they are sustainable in thin film form. Subsequent heat treatment of these films produced additional tensile stress, even at low temperatures prior to crystallization. The mechanisms responsible for all of these stress contributions are discussed. The variety of operative mechanisms at low to moderate temperatures in these amorphous films suggests that different processing routes can be used to engineer significant differences in the final stress state of these materials

    Symmetry-surfing the moduli space of Kummer K3s.

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    A maximal subgroup of the Mathieu group M24 arises as the combined holomorphic symplectic automorphism group of all Kummer surfaces whose Kaehler class is induced from the underlying complex torus. As a subgroup of M24, this group is the stabilizer group of an octad in the Golay code. To meaningfully combine the symmetry groups of distinct Kummer surfaces, we introduce the concepts of Niemeier markings and overarching maps between pairs of Kummer surfaces. The latter induce a prescription for symmetry-surfing the moduli space, while the former can be seen as a first step towards constructing a vertex algebra that governs the elliptic genus of K3 in an M24-compatible fashion. We thus argue that a geometric approach from K3 to Mathieu Moonshine may bear fruit.Comment: 20 pages; minor changes; accepted for publication in the Proceedings Volume of String-Math 201
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