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Barker, Blake,Jung, Soyeun,Zumbrun, Kevin Elsevier 2018 Physica. D, Nonlinear phenomena Vol.367 No.-
<P><B>Abstract</B></P> <P>Turing patterns on unbounded domains have been widely studied in systems of reaction–diffusion equations. However, up to now, they have not been studied for systems of conservation laws. Here, we (i) derive conditions for Turing instability in conservation laws and (ii) use these conditions to find families of periodic solutions bifurcating from uniform states, numerically continuing these families into the large-amplitude regime. For the examples studied, numerical stability analysis suggests that stable periodic waves can emerge either from supercritical Turing bifurcations or, via secondary bifurcation as amplitude is increased, from subcritical Turing bifurcations. This answers in the affirmative a question of Oh–Zumbrun whether stable periodic solutions of conservation laws can occur. Determination of a full small-amplitude stability diagram – specifically, determination of rigorous Eckhaus-type stability conditions – remains an interesting open problem.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Conditions for Turing instability in conservation laws are derived. </LI> <LI> There exist no Turing-type instabilities in conservation laws for 2 × 2 systems. </LI> <LI> Stable periodic waves in conservation laws are numerically observed. </LI> </UL> </P>
Finding Pluto: An Analytics-Based Approach to Safety Data Ecosystems
Barker, Thomas T. Occupational Safety and Health Research Institute 2021 Safety and health at work Vol.12 No.1
This review article addresses the role of safety professionals in the diffusion strategies for predictive analytics for safety performance. The article explores the models, definitions, roles, and relationships of safety professionals in knowledge application, access, management, and leadership in safety analytics. The article addresses challenges safety professionals face when integrating safety analytics in organizational settings in four operations areas: application, technology, management, and strategy. A review of existing conventional safety data sources (safety data, internal data, external data, and context data) is briefly summarized as a baseline. For each of these data sources, the article points out how emerging analytic data sources (such as Industry 4.0 and the Internet of Things) broaden and challenge the scope of work and operational roles throughout an organization. In doing so, the article defines four perspectives on the integration of predictive analytics into organizational safety practice: the programmatic perspective, the technological perspective, the sociocultural perspective, and knowledge-organization perspective. The article posits a four-level, organizational knowledge-skills-abilities matrix for analytics integration, indicating key organizational capacities needed for each area. The work shows the benefits of organizational alignment, clear stakeholder categorization, and the ability to predict future safety performance.
Leadership, Beyond IMF Moving Toward a Human Centered Leadership Theory and Practice
Barker, H. J. 한국인간관계학회 1999 한국인간관계학보 Vol.4 No.1
This paper identifies the key philosophical and ethical components of leadership associated with Confucian Ideals which focus on the development of human beings in organizational structures, and constructs a theory which accurately comprehends these ideas. The paper explores from a philosophical point of view the possibilities of relating Confucianism to Western planning models.The author has created three models of Confucian Leadership (the macro, micro, and growth models). This paper presents a brief explanation of the micro model
Towards An Ethic and Theory of Literature without Alterity
( Jason Barker ) 한국영어영문학회 2014 영어 영문학 Vol.60 No.1
Globalization of contemporary literature raises the prospect of ethics in the name of alterity. Through cultural pluralism comes the responsibility on writers and readers alike to recognize and respect difference, or otherness. This article highlights the difficulties of constructing an ethic founded on such assumptions, which over the years has drawn theoretical inspiration from the work of the French psychoanalyst Jacques Lacan, often in an attempt to attest to the trauma and suffering of the post-colonial age. The philosopher Simon Critchley is arguably a promoter of such a reading of Lacan, and of a “structural homology” between Lacan and Emmanuel Levinas, on ethical questions. But such an ethic is inconsistent, arguably ending up as an apology for the political states of affairs that generate trauma and suffering in the first place. This article attempts to correct certain key misunderstandings of Lacan`s work, with reference to Lacan`s Imaginary, Symbolic and Real orders of the psyche, whichalso correspond to consecutive phases of his overall teaching of psychoanalysis. Reference is also made to the work of Alain Badiou and Michel Foucault respectively as welcome antidotes to the messianic pretensions of Levinasian ethics, and in order to point the way towards a-signifying theories of literature. There is ultimately a passage in Lacan`s work through the Symbolic and Real orders of the psyche, from the concept of “signifier” to the “letter,” and in conclusion the article speculates, albeit tentatively, that here one might find the theoretical resources for a “rubbish theory of literature,” one that would seek to divorce literature from the art of pathos and the ethics of the self and its other.
Democracy and Free Speech in Herodotus’ Lydian Logos
Chris Barker 한국서양고전학회 2014 西洋古典學硏究 Vol.53 No.3
The argument for Athenian freedom of speech (in Foucault, JS Mill, and others) distinguishes the concept of equal, free speech (?σηγορ?η) from frank speech (παρρησ?α). Herodotus does not use the term παρρησ?α, but he offers a parallel, if importantly different, two-stage account of equal freedom of speech (?σηγορ?η) improved by historical inquiry (?στορ?η). Unlike the parrhesiastic ‘right to say all’ (pan-r?sia), Herodotean inquiry operates under conditions of self-restraint and moderation. This essay shows that Herodotus’s attempt to correct democracy’s drift towards imperialism requires the type of skeptical inquiry that can save democracy from itself, including or especially inquiry that exposes the incomplete knowledge of the world that animates political actors with imperial ambitions. Although tyrants can successfully use signs and information to make good decisions, the Lydian logos (1, 6 - 1, 91) suggests that politically integrated, democratic regimes will have more flexibility in decision-making than less integrated regimes. What is of particular use for democratic regimes is a combination of the mobilizing power of democratic politics and a technique of critical selfinquiry that is more typically associated with the intellectual virtues of elites. In the conclusion, it is argued that Herodotus’ special form of comparative historical inquiry into constitutional orders is precisely what democracy needs to preserve liberty and to avoid the hybris and excess that are characteristic of ambitious and expansionist regimes, autocratic or democratic.