27,706 research outputs found
Wolfang station shearing shed loading bales, Clermont, Queensland, ca. 1915 [picture] /
Accompanied by photographic print.; Glass negative no. 111.; Part of the Gordon Cumming Pullar collection of glass negatives of Clermont, Yeppoon and nearby locations, Queensland, ca. 1905-1932.; Photograph no. 219 in the book A shifting town : glass-plate images of Clermont and its people.; Wolfang Downs was established in 1863 by Augustus Kerrin and acquired by Oscar de Satge, author of Pages from the Journal of a Queensland Squatter; note the crane for lifting bales. .; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic-vn4191848; Published in: A shifting town : glass-plate images of Clermont and its people / by G.C. Pullar ; compiled by Richard and Marguerite Stringer ; text by Marguerite Stringer. St. Lucia, Qld. : University of Queensland Press, 1986
Author Gordon Henry reads his selected works at the Michigan Writers Series
Author Gordon Henry, MSU professor of English, reads selections of his poetry and fiction then answers questions from the audience. The event is convened by librarian Michael Rodriguez. Part of the Michigan State University Libraries' Michigan Writers Series
Jalisco M. Dellacasa, Gordon and G. Dellacasa 2004
<i>Jalisco</i> M. Dellacasa, Gordon and G. Dellacasa, 2004b <p> <i>Jalisco plumipes</i> M. Dellacasa, Gordon and G. Dellacasa, 2004b: 70, Mexico.</p>Published as part of <i>Skelley, Paul E., Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2007, Checklist of the Aphodiini of Mexico, Central and South America (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-14 in Insecta Mundi 2007 (14)</i> on page 5, DOI: <a href="http://zenodo.org/record/4532625">10.5281/zenodo.4532625</a>
Finite size effects and the supersymmetric sine-Gordon models
We propose nonlinear integral equations to describe the groundstate energy of the fractional supersymmetric sine-Gordon models. The equations encompass the N = 1 supersymmetric sine-Gordon model as well as the phi(id,id,adj) perturbation of the SU(2)(L) x SU(2)(K)/SU(2)(L+K) models at rational level K. A second set of equations is proposed for the groundstate energy of the N = 2 supersymmetric sine-Gordon model
Neotrichonotulus M. Dellacasa, Gordon and G. Dellacasa 2004
<i>Neotrichonotulus</i> M. Dellacasa, Gordon and G. Dellacasa, 2004a <p> <i>Neotrichonotulus inurbanus</i> (Gordon and Howden, 1973: 442) [<i>Aphodius</i>], Mexico, USA.</p> <p> <i>Neotrichonotulus perotensis</i> (Deloya and Lobo, 1996: 50) [<i>Aphodius</i>], Mexico.</p> <p> <i>Neotrichonotulus urangai</i> (Islas, 1955: 225) [<i>Aphodius</i>], Mexico.</p>Published as part of <i>Skelley, Paul E., Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2007, Checklist of the Aphodiini of Mexico, Central and South America (Coleoptera: Scarabaeidae: Aphodiinae), pp. 1-14 in Insecta Mundi 2007 (14)</i> on page 5, DOI: <a href="http://zenodo.org/record/4532625">10.5281/zenodo.4532625</a>
The complex sine-Gordon model on a half line
In this thesis, we study the complex sine-Gordon model on a half line. The model in the bulk is an integrable (l+1) dimensional field theory which is U(1) gauge invariant and comprises a generalisation of the sine-Gordon theory. It accepts soliton and breather solutions. By introducing suitably selected boundary conditions we may consider the model on a half line. Through such conditions the model can be shown to remain integrable and various aspects of the boundary theory can be examined. The first chapter serves as a brief introduction to some basic concepts of integrability and soliton solutions. As an example of an integrable system with soliton solutions, the sine-Gordon model is presented both in the bulk and on a half line. These results will serve as a useful guide for the model at hand. The introduction finishes with a brief overview of the two methods that will be used on the fourth chapter in order to obtain the quantum spectrum of the boundary complex sine-Gordon model. In the second chapter the model is properly introduced along with a brief literature review. Different realisations of the model and their connexions are discussed. The vacuum of the theory is investigated. Soliton solutions are given and a discussion on the existence of breathers follows. Finally the collapse of breather solutions to single solitons is demonstrated and the chapter concludes with a different approach to the breather problem. In the third chapter, we construct the lowest conserved currents and through them we find suitable boundary conditions that allow for their conservation in the presence of a boundary. The boundary term is added to the Lagrangian and the vacuum is reexamined in the half line case. The reflection process of solitons from the boundary is studied and the time-delay is calculated. Finally we address the existence of boundary-bound states. In the fourth chapter we study the quantum complex sine-Gordon model. We begin with a brief overview of the theory in the bulk where the semi-classical spectrum and an exact S'-matrix are presented. Following that we use the stationary phase method to derive the semi-classical spectrum of boundary bound states. The bootstrap method is used as an alternative approach to obtain the same spectrum. The results are discussed and compared. The final chapter consists of a general discussion on open questions and problems of the model, and some proposals for further research
Constitutions of Value:An Introduction
Practices of value production and valuation shape and make worlds. They also unmake worlds, have severe destructive effects and lie at the heart of contemporary interlocking crises characterized by violence, extraction and destruction. Against the background of an analysis of the worldmaking and unmaking effects of value, this book pursues a better understanding of how value and valuation are socially and materially – and in particular legally – constructed, on which basis to prepare the ground for proposals for institutional experimentation and re-design to reshape practices of value production and valuation. We call our endeavour a constitutional study of value. We use the adjective “constitutional” as we seek to explore the practices and institutions at the core of value production, its hardware, its central constitutive elements, with a focus on law as a significant building-block, while attending to further constitutive forces, including politics, economics, technology and science. Our project is not one of constitutionalization understood as a project of restraining the excesses of value production by a top-down legal framework. Equally, instead of building on a neoclassical understanding of value, this volume observes value to be anchored in particular societal and material configurations and practices, and in doing so, its contributions draw on renewed relational conceptions of economic value. Thereby, we explore value as a product of collective societal organization for the purpose of reconfiguring, redesigning and revaluing value in social and institutional context today.In this introductory chapter, we focus on commoning and a reinvigoration of commons as concrete guidance for institutional design and experimentation, and as an ambitious program to revalue value. The register of commoning privileges vernacular knowledge, practice, and bottom-up law-making over abstract values and top-down prescriptions. While commoning aims at deprivatization, decommodification, and provisioning based on solidarity, responding to desire and need, it also affirms a unique surplus value, keyed to thriving, and an abundance of vitality and lived experience. In this introductory chapter, commoning serves as a practical example of goals that the various contributions to this book help to make possible
Gordon Loud. — Khorsabad, Part I
Contenau G. Gordon Loud. — Khorsabad, Part I. In: Syria. Tome 18 fascicule 4, 1937. pp. 398-401
Jaimy Gordon, professor of creative writing at Western Michigan University, reads from her novel in progress "Lord of misrule" and answers questions from audience at the Michigan Writers Series
Jaimy Gordon, professor of creative writing at Western Michigan University, and author of "She drove without stopping" and the underground fantasy classic, "Shamp of the city-solo", reads from her novel in progress, "Lord of misrule". She explains the horse racing and track setting of the novel, its premise and characters. Gordon answers questions about how her writing technique, writing about familiar things and her own experiences working at the track as a young woman. She recommends working before going to graduate school, suggesting that it gives young writers something to write about. Gordon is introduced by Stephanie Mathson for the Michigan State University Libraries' Michigan Writers Series
Sine-Gordon Equation: From Discrete to Continuum
In the present Chapter, we consider two prototypical Klein-Gordon models: the integrable sine-
Gordon equation and the non-integrable φ4 model. We focus, in particular, on two of their prototypical
solutions, namely the kink-like heteroclinic connections and the time-periodic, exponentially
localized in space breather waveforms. Two limits of the discrete variants of these models are contrasted:
on the one side, the analytically tractable original continuum limit, and on the opposite end,
the highly discrete, so-called anti-continuum limit of vanishing coupling. Numerical computations
are used to bridge these two limits, as regards the existence, stability and dynamical properties
of the waves. Finally, a recent variant of this theme is presented in the form of PT -symmetric
Klein-Gordon field theories and a number of relevant results are touched upon
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