1,720,989 research outputs found

    A dynamic model for viscoelasticity in domains with time-dependent cracks

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    In this paper, we prove the existence of solutions for a class of viscoelastic dynamic systems on time-dependent cracking domains

    Another week at the office (awato) – an interactive serious game for threat modeling human factors

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    Another Week at the Office (AWATO) is serious game aimed to educate users about threat modeling to help them and/or security analysts identify human factor related threats. AWATO offers an interactive experience where players assume the role of a security analyst where they must observe characters within an office, monitor their emails and phone calls, and identify concerning behavior (e.g. writing passwords on post-it notes)

    An existence result for the fractional Kelvin–Voigt’s model on time-dependent cracked domains

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    We prove an existence result for the fractional Kelvin–Voigt’s model involving Caputo’s derivative on time-dependent cracked domains. We first show the existence of a solution to a regularized version of this problem. Then, we use a compactness argument to derive that the fractional Kelvin–Voigt’s model admits a solution which satisfies an energy-dissipation inequality. Finally, we prove that when the crack is not moving, the solution is unique

    A dynamic model for viscoelastic materials with prescribed growing cracks

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    In this paper, we prove the existence of solutions for a class of viscoelastic dynamic systems on time-dependent cracked domains, with possibly degenerate viscosity coefficients. Under stronger regularity assumptions, we also show a uniqueness result. Finally, we exhibit an example where the energy-dissipation balance is not satisfied, showing there is an additional dissipation due to the crack growth

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Stability and the law

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    Social stability is a top national concern of Chinese authorities. Law is essential to achieving and maintaining stability, in the understanding of these authorities and in practice. This volume therefore explores the place of law in judicial and government activism around managing social instability in China today. In official circles, social stability is understood as the political and social security that accompanies orderly, conflict-free social relations. Instability is manifest in what the Communist Party-state deems unharmonious relations within communities and between individuals and the state, brought about by crime, dispute and protest. Disparity in income distribution,1 the underdeveloped welfare system and weak governance oversight mechanisms in local areas are the root causes of festering social unrest that has swept the nation for at least the last 15 years. Well over 100,000 collective protests annually make stability a major political preoccupation. How local courts and governments marshal the forces of law to deter and punish crime, resolve disputes and manage protest has become a central socio-political concern for China’s governing authorities. Social stability has become a defining sociopolitical goal because the Party-state sees social disorder as a threat to future prospects for economic growth, hence to its own future. The studies in this volume observe interactions between law and the stability imperative and how politics figures in these interactions.No Full Tex
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