cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Geometry of SUSY Enhancement
Creators: name: Carta, Federico
name: Giacomelli, Simone
name: Hayashi, Hirotaka
name: Savelli, Raffaele
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: We provide a precise geometric picture that demystifies the phenomenon of supersymmetry enhancement along certain RG flows of four-dimensional field theories, recently discovered by Maruyoshi and Song. It applies to theories of arbitrary rank and it is based on a hyperk\'ahler-structure restoration on the moduli space of solutions of (twisted) Hitchin systems, which underly the class-S construction we use as an engineering tool. Along the way, we formulate a necessary algebraic condition for supersymmetry enhancement, and, when enhancement occurs, we are able to derive the Seiberg-Witten geometry and all conformal dimensions of Coulomb-branch operators for the infrared theory, without using a-maximization.
Symplectic tomographic probability distribution of crystallized Schrödinger cat states
Creators: name: López-Saldívar, Julio A.
name: Man'ko, Vladimir I.
name: Man'ko, Margarita A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Within the framework of the probability representation of quantum mechanics, we study a superposition of generic Gaussian states associated to symmetries of a regular polygon of n sides; in other words, the cyclic groups (containing the rotational symmetries) and dihedral groups (containing the rotational and inversion symmetries). We obtain the Wigner functions and tomographic probability distributions (symplectic and optical tomograms) determining the density matrices of the states explicitly as the sums of Gaussian terms. The obtained Wigner functions demonstrate nonclassical behavior, i.e., contain negative values, while the tomograms show a series of maxima and minima different for each state, where the number of the critical points reflects the order of the group defining the states. We discuss general properties of such a generalization of normal probability distributions.
title: Milena Jesenská und Alice Rühle-Gerstel: Konstruktionen gesellschaftlicher Nichtanerkennung
Creators: name: Darowska, Lucyna
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: Anerkennung
subject: Geschlecht
subject: Journalismus
subject: Kommunismus
subject: Macht
subject: Nationalsozialismus
subject: Rezeption
subject: Widerstand
subject: ddc:300

description: Den Ausgangspunkt des Artikels bildet die These, dass zwei bedeutende weibliche Intellektuelle des 20. Jahrhunderts, Milena Jesenská und Alice Rühle-Gerstel, bis heute im Verhältnis zu ihren Leistungen nur bescheidene Anerkennung erfahren haben. Nach der Darstellung der beachtlichen Leistungen der beiden Autorinnen und Aktivistinnen folgt eine Analyse der Rezeption. Insbesondere werden Momente identifiziert, die Fehlinterpretationen verursacht bzw. die Rezeption blockiert haben. Für diese Untersuchung werden theoretische Ansätze aus den Bereichen der politischen und Sprachphilosophie und der politischen Soziologie herangezogen. Neben den geschichtlichen und politischen Ursachen hat auch die asymmetrische Geschlechterordnung wesentlich zu einseitiger und zum Teil verfehlter Rezeption beigetragen. Die Mechanismen, durch die sich üblicherweise der Ruf einer Person bildet und stabilisiert, wie z. B. Präsenz in der Öffentlichkeit und Kontakt mit dem Publikum, waren nach dem frühen Tod beider Frauen nicht wirksam. Der Artikel zeigt die Notwendigkeit einer intensiveren Auseinandersetzung mit dem OEuvre und den Biografien Milena Jesenskás und Alice Rühle-Gerstels – auch innerhalb der feministischen Forschung – und will diesen Diskurs anregen.
Hierarchical Models, Marginal Polytopes, and Linear Codes
Creators: name: Kahle, Thomas
name: Wenzel, Walter
name: Ay, Nihat
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 52B11, 94B05, 60C05

description: In this paper, we explore a connection between binary hierarchical models, their marginal polytopes and codeword polytopes, the convex hulls of linear codes. The class of linear codes that are realizable by hierarchical models is determined. We classify all full dimensional polytopes with the property that their vertices form a linear code and give an algorithm that determines them.
description: 18 pages
Leitura a partir do clique: a construção identitária do leitor universitário brasileiro em frente à revolução digital
Creators: name: Feronato, Lavínia Neres
Publisher: name: Labfront/UEMG
Year: 2023

description: O trabalho proposto trata-se de um estudo sobre consumo e identidade de leitores de livros digitais que estão no Ensino Superior, visto que, atualmente, a revolução digital nos proporciona a possibilidade de ler independente do lugar em que nos encontramos com o uso de e-readers ou o próprio smartphone. Desse modo, o artigo apresentará as primeiras discussões a respeito das práticas de leitura de ebooks e audiolivros desses sujeitos baseadas em uma pesquisa piloto de Mapeamentos de Leitores de Livros Digitais que fundamenta também a futura pesquisa de dissertação. O objetivo do trabalho é, portanto, demonstrar como se lê e quando se lê os livros dessas diferentes materialidades para enfim entender como se configuram essas identidades dos leitores universitários. Sendo assim, a pesquisa conta com fundamentação teórica nos estudos de Canclini (2015), Chartier (1998, 2011) e Thompson (2021).
Energy Gaps and Kohn Anomalies in Elemental Superconductors
Creators: name: Aynajian, P.
name: Keller, T.
name: Boeri, L.
name: Habicht, S. M. Shapiro K.
name: Keimer, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The momentum and temperature dependence of the lifetimes of acoustic phonons in the elemental superconductors Pb and Nb was determined by resonant spin-echo spectroscopy with neutrons. In both elements, the superconducting energy gap extracted from these measurements was found to converge with sharp anomalies originating from Fermi-surface nesting (Kohn anomalies) at low temperatures. The results indicate electron many-body correlations beyond the standard theoretical framework for conventional superconductivity. A possible mechanism is the interplay between superconductivity and spin- or charge-density-wave fluctuations, which may induce dynamical nesting of the Fermi surface.
Genus two curves with quaternionic multiplication and modular jacobian
Creators: name: Gonzalez, Josep
name: Guardia, Jordi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G10, 11G18

description: We describe a method to determine all the isomorphism classes of principal polarizations of the modular abelian surfaces $A_f$ with quaternionic multiplication attached to a normalized newform $f$ without complex multiplication. We include an example of $A_f$ with quaternionic multiplication for which we find numerically a curve $C$ whose Jacobian is $A_f$ up to numerical approximation, and we prove that it has quaternionic multiplication and is isogenous to $A_f$.
description: 15 pages, 2 figures. To appear in Mathematics of Computation
title: Constructing Parallel Narratives in Cartographic Storytelling
Creators: name: Fovenyessy, Stephanie
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Parallel narratives
subject: cartographic storytelling
subject: visual narratives

description: This thesis aims to provide an understanding on how parallel narratives can be applied in cartographic storytelling. An increase in research on cartographic storytelling has outlined techniques and structures used to convey stories. This thesis will expand upon this research and focus on the presentation of parallel narratives in cartographic stories. Parallel narratives are widely used in both literature and film and are defined as the presentation of multiple narratives in one story. The narratives are linked by a common theme and often present opposing views or sides to one story. Design elements and structures in both visual/cartographic storytelling and parallel narratives will be presented in order to understand what design elements and structures are important in cartographic parallel narrative stories. Through a qualitative content analysis of existing examples of parallel narratives in cartographic stories a typology of parallel narratives in cartographic stories is presented. The typology of parallel narratives helps to describe the various structure and presentation of parallel narratives in cartographic stories. A case study further examines how certain elements of a visual story contribute to the display of a parallel narrative in a cartographic storytelling.
Chiral Condensate at Nonzero Chemical Potential in the Microscopic Limit of QCD
Creators: name: Osborn, J. C.
name: Splittorff, K.
name: Verbaarschot, J. J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The chiral condensate in QCD at zero temperature does not depend on the quark chemical potential (up to one third the nucleon mass), whereas the spectral density of the Dirac operator shows a strong dependence on the chemical potential. The cancellations which make this possible also occur on the microscopic scale, where they can be investigated by means of a random matrix model. We show that they can be understood in terms of orthogonality properties of orthogonal polynomials. In the strong non-Hermiticity limit they are related to integrability properties of the spectral density. As a by-product we find exact analytical expressions for the partially quenched chiral condensate in the microscopic domain at nonzero chemical potential.
description: 29 pages, 5 figures, version to appear in PRD
Rejoinder: One-step sparse estimates in nonconcave penalized likelihood models
Creators: name: Zou, Hui
name: Li, Runze
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We would like to take this opportunity to thank the discussants for their thoughtful comments and encouragements on our work [arXiv:0808.1012]. The discussants raised a number of issues from theoretical as well as computational perspectives. Our rejoinder will try to provide some insights into these issues and address specific questions asked by the discussants.
description: Published in at http://dx.doi.org/10.1214/07-AOS0316REJ the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Tropical Resultants for Curves and Stable Intersection
Creators: name: Tabera, Luis Felipe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M25, 14H50, 52B20, 14M25, 14H50, 52B20

description: We introduce the notion of resultant of two planar curves in the tropical geometry framework. We prove that the tropicalization of the algebraic resultant can be used to compute the stable intersection of two tropical plane curves. It is shown that, for two generic preimages of the curves to an algebraic framework, their intersection projects exactly onto the stable intersection of the curves. It is also given sufficient conditions for such a generality in terms of the residual coefficients of the algebraic coefficients of defining equations of the curves.
description: 22 pages, 1 figure. To appear in the Revista Matem\'atica Iberoamericana
Letter from Kathleen Raine to Robin Skelton, [January 21, 1954]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine invites Skelton and his wife for dinner, and mentions her research on William Blake.
title: Weiblich, feministisch, Intellektuelle: Paradoxie oder Tabu?
Creators: name: Dackweiler, Regina-Maria
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: Bourdieu
subject: Frauenbewegung
subject: Gramsci
subject: Intellektuelle
subject: Intellektuellentheorie
subject: Neue Frauenbewegung
subject: ddc:300

description: Der Beitrag geht der Frage nach den Gründen für die anhaltend zu konstatierende Leerstelle weiblicher bzw. feministischer Intellektueller in der Historiografie und Soziologie der Intellektuellen nach. Hierfür wird von einem Spannungsfeld ausgegangen, das sich aus den Dimensionen von Anerkennung, Definition, (Selbst-)Autorisierung sowie Zugehörigkeit zu dieser Sozialfigur konstituiert. Mit Blick auf den Entstehungszusammenhang der Neuen Frauenbewegung sowie im Rückgriff auf feministische Erklärungsansätze und die Intellektuellentheorien von Bourdieu und Gramsci werden das Paradox der weiblichen bzw. das Tabu der feministischen Intellektuellen herausgearbeitet. Auf der Grundlage einer Skizze der frühen politischen Ideen der Neuen Frauenbewegung wird abschließend eine veränderte Genealogie der Intellektuellen in der Bundesrepublik Deutschland gefordert.
Introducing categories to the practicing physicist
Creators: name: Coecke, Bob
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Category Theory (math.CT)
subject: Logic (math.LO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We argue that category theory should become a part of the daily practice of the physicist, and more specific, the quantum physicist and/or informatician. The reason for this is not that category theory is a better way of doing mathematics, but that monoidal categories constitute the actual algebra of practicing physics. We will not provide rigorous definitions or anything resembling a coherent mathematical theory, but we will take the reader for a journey introducing concepts which are part of category theory in a manner that the physicist will recognize them.
description: 30 pages and 19 pictures
Uncertainties and Design of Active Aerodynamic Attitude Control in Very Low Earth Orbit
Creators: name: Livadiotti, Sabrina
name: Crisp, Nicholas H.
name: Roberts, Peter C. E.
name: Oiko, Vitor T. A.
name: Christensen, Simon
name: Dominguez, Rosa Maria
name: Herdrich, Georg H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: This paper discusses the design and the performance achievable with active aerodynamic attitude control in very low Earth orbit, i.e. below 450 km in altitude. A novel real-time algorithm is proposed for selecting the angles of deflection of aerodynamic actuators providing the closest match to the control signal computed by a selected control law. The algorithm is based on a panel method for the computation of the aerodynamic coefficients and relies on approximate environmental parameters estimation and worst-case scenario assumptions for the re-emission properties of space materials. Discussion of results is performed by assuming two representative pointing manoeuvres, for which momentum wheels and aerodynamic actuators are used synergistically. A quaternion feedback PID controller implemented in discrete time is assumed to determine the control signal at a sampling frequency of 1 Hz. The outcome of a Monte Carlo analysis, performed for a wide range of orbital conditions, shows that the target attitude is successfully achieved for the vast majority of the cases, thus proving the robustness of the approach in the presence of environmental uncertainties and realistic attitude hardware limitations.
description: 33 pages, 14 figures, 3 tables, accepted for publication in AIAA Journal of Guidance, Control, and Dynamics (2022-01-04)
Conceptualisations of Public Mental Health: The Role of Primary Prevention and the Social Determinants of Mental Health
Creators: name: Gibbons, Orla
Publisher: name: University of East London
Year: 2021
Subjects: Public Mental Health Prevention
Clinical Psychology
Public Health
Social Determinants
Health Inequalities

description: Background: Within the area of public mental health there is a lack of consensus regarding how best to deliver a preventative and population-level approach to mental health. There has been increased interest in how psychologists can contribute towards developing a public mental health approach that focuses on the prevention of mental health problems, as opposed to treatment. A study that explores how psychologists think about, and engage with, public mental health and prevention has not been carried out before. Aims: This study aimed to explore how practitioner psychologists understand the concept of mental health prevention, how this informs their practice, and how they engage with the evidence on the social determinants of mental health as part of this. Method: Eleven semi-structured interviews were conducted with clinical and community psychologists involved in the area of public health and prevention. Interview transcripts were analysed using thematic analysis. Results: Participants’ understanding and use of public mental health and prevention approaches were captured in five themes. A description of these themes and associated sub-themes is presented. Conclusion: The findings indicate that there are a range of understandings regarding the concept of mental health prevention and that this relates to beliefs and values about mental health and where change should occur. The psychologists in this study had employed a variety of skills, models and theories in their prevention work. Most participants felt that prevention ought to address the social determinants of poor mental health, and some had found ways to do this through multi-sector work and influencing key decision makers. The implications for the theory and practice of applied psychologists involved in prevention, and for decision making in public mental health are discussed.
title: Das Spiel mit der Geschlechterdifferenz – aufs Spiel gesetzte Grenzen? Geschlechterkonstruktionen beim Pausenspiel von Grundschulkindern und ihren Peers aus praxistheoretischer Perspektive
Creators: name: Eckermann, Torsten
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: Geschlechterdifferenz
subject: Grundschule
subject: Kindheitsforschung
subject: Pädagogik
subject: Peers
subject: Praxistheorie
subject: Schule
subject: ddc:370

description: Der Beitrag fokussiert vor dem Hintergrund einer praxistheoretischen Perspektive den lokal situierten Vollzug der Geschlechter(in)differenz im Spiel unter Schulkindern und ihren Peers. Anhand kurzer ethnographischer Beobachtungsprotokolle wird illustriert, wie Geschlecht in den Interaktionen unter den Kindern ‚ins Spiel kommt‘, wie dabei Grenzen einerseits markiert, andererseits im und durch das Spiel überschritten und ‚heruntergespielt‘ werden.
NGC 602 Environment, Kinematics and Origins
Creators: name: Nigra, L.
name: Gallagher, J. S.
name: Smith, L. J.
name: Stanimirovic, S.
name: Nota, A.
name: Sabbi, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The young star cluster NGC 602 and its associated HII region, N90, formed in a relatively isolated and diffuse environment in the Wing of the Small Magellanic Cloud. Its isolation from other regions of massive star formation and the relatively simple surrounding HI shell structure allows us to constrain the processes that may have led to its formation and to study conditions leading to massive star formation. We use images from Hubble Space Telescope and high resolution echelle spectrographic data from the Anglo-Australian Telescope along with 21-cm neutral hydrogen (HI) spectrum survey data and the shell catalogue derived from it to establish a likely evolutionary scenario leading to the formation of NGC 602. We identify a distinct HI cloud component that is likely the progenitor cloud of the cluster and HII region which probably formed in blister fashion from the cloud's periphery. We also find that the past interaction of HI shells can explain the current location and radial velocity of the nebula. The surrounding Interstellar Medium is diffuse and dust-poor as demonstrated by a low visual optical depth throughout the nebula and an average HI density of the progenitor cloud estimated at 1 cm^-3. These conditions suggest that the NGC 602 star formation event was produced by compression and turbulence associated with HI shell interactions. It therefore represents a single star forming event in a low gas density region.
description: Accepted for publication in PASP. 25 pages, 10 figures
Pattern formation in one-dimensional polaron systems and temporal orthogonality catastrophe
Creators: name: Koutentakis, G. M.
name: Mistakidis, S. I.
name: Schmelcher, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent studies have demonstrated that higher than two-body bath-impurity correlations are not important for quantitatively describing the ground state of the Bose polaron. Motivated by the above, we employ the so-called Gross Ansatz (GA) approach to unravel the stationary and dynamical properties of the homogeneous one-dimensional Bose-polaron for different impurity momenta and bath-impurity couplings. We explicate that the character of the equilibrium state crossovers from the quasi-particle Bose polaron regime to the collective-excitation stationary dark-bright soliton for varying impurity momentum and interactions. Following an interspecies interaction quench the temporal orthogonality catastrophe is identified, provided that bath-impurity interactions are sufficiently stronger than the intraspecies bath ones, thus generalizing the results of the confined case. This catastrophe originates from the formation of dispersive shock wave structures associated with the zero-range character of the bath-impurity potential. For initially moving impurities, a momentum transfer process from the impurity to the dispersive shock waves via the exerted drag force is demonstrated, resulting in a final polaronic state with reduced velocity. Our results clearly demonstrate the crucial role of non-linear excitations for determining the behavior of the one-dimensional Bose polaron.
description: 26 pages, 8 figures
Electroluminescence and thermal radiation from metallic carbon nanotubes with defects
Creators: name: Zu-Quan, Zhang
name: Jian-Sheng, Wang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Bias-induced light emission and thermal radiation from conducting channels of carbon nanotubes (CNTs) with defects are studied theoretically within the framework of nonequilibrium Green's function method based on a tight-binding model. Localized states induced by the single vacancy defect and single Stone-Wales defect in the low energy range enhance electroluminescence significantly while they reduce thermal radiation under zero bias. The influence of the diameters of the CNTs with defects on the radiation is discussed. Different from the 2D or bulk materials, the radiation intensities from quasi-one-dimensional metallic CNTs in thermal equilibrium are much smaller than that of the black-body radiation. We attribute this to the confinement of thermal excitation in the transverse direction of the CNT. Our study is important for optoelectronic applications of CNTs with defects.
description: 6 pages, 5 figures
Exclusive $eta_b$ decay to double $J/ψ$ at next-to-leading order in $alpha_s$
Creators: name: Gong, Bin
name: Jia, Yu
name: Wang, Jian-Xiong
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Within the nonrelativistic QCD (NRQCD) factorization framework, we calculate the exclusive decay process η_b \to J/ψJ/ψto next-to-leading order in the strong coupling constant, while at leading order in charm quark relative velocity. It is found that this new contribution to the amplitude is comparable in magnitude with the previously calculated relativistic correction piece, but differs by a phase about 90^\circ. Including this new contribution will increase the previous prediction to B(η_b \to J/ψJ/ψ) substantially, thus brightening the discovery potential of this clean hadronic decay channel of η_b in the forthcoming LHC experiment.
description: v2,16 pages, 3 figures; References added/updated, presentation refined, minor mistakes corrected. The absence of Coulomb divergences in Figure 1b) is stressed
The dressing transformation and its application to a fermion-boson trilinear interaction
Creators: name: Hearn, Deborah Jean
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis, various fermion-boson strong interaction potentials are determined as functions of the basic fermion-boson trilinear vertex function. Working in Fock space, we note that the fermion-boson trilinear interaction does not explicitly involve physical particles. We develop a transformation, called the dressing transformation, which acts on the fundamental particle creators and annihilators. They are transformed into physical particle operators, and the invariance properties and commutation relations of the theory are preserved. A precise technique for perturbatively determining the dressing transformation is formulated, and is applied to some simple models in field theory. The dressing transformation makes explicit the physical particle interactions implicit in the original trilinear interaction. When applied to the nucleon-pion trilinear interaction, we find a nucleon mass renormalization, a nucleon-pion scattering term, and a nucleon-nucleon scattering term present in the second-order dressed Hamiltonian. Using the NN7C vertex function derived from the Cloudy Bag Model, the nucleon-nucleon coordinate space potential can be calculated. We discover that providing the two nucleons are separated by a distance greater than twice the bag radius, the potential between them is given by the one pion exchange potential modified in strength by a function of the bag radius.
Better Carbon Capture for Industrial Emissions - Enhancing CCUS in Europe in support of the Paris Agreement
Creators: name: Martina, Fantini
name: Richard, Porter
name: Catalanotti Elena
name: Baltac Silvian
name: Lochner Lillian
name: Fleming Padraig
name: Mann Indira
Publisher: name: Zenodo
Year: 2021
Subjects: CCUS, policy brief, policymakers

description: CO2 Capture, Utilisation and/or Storage (CCUS) technologies are essential for the decarbonisation of industry. However, the deployment of full-chain CCUS, which must also include CO2 transport, is influenced by international, national and regional legal and regulatory frameworks. These affect the costs of CCUS so policy must be appropriately designed to financially incentivise large-scale deployment.
 This policy brief therefore argues that national climate strategic targets of all countries should be aligned to the goals of the Paris Agreement, and CCUS technology should be included in the list of technological priorities together with renewables and other decarbonisation options in the national regulation of each country. Additional CCUS regulations and political incentives, as well as national, industrial and EU financial support, are needed to initiate and support large-scale CCUS projects. This brief is geared towards policymakers at national and European Commission level, involved with designing national and international policies related to CCUS, as well as research funding organisations. CLEANKER, C4U and REALISE CCUS projects have developed this brief with the support of the Horizon Results Booster (HRB) experts, funded under H2020.
Driving the Herd: Search Engines as Content Influencers
Creators: name: Goren, Gregory
name: Kurland, Oren
name: Tennenholtz, Moshe
name: Raiber, Fiana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In competitive search settings such as the Web, many documents' authors (publishers) opt to have their documents highly ranked for some queries. To this end, they modify the documents - specifically, their content - in response to induced rankings. Thus, the search engine affects the content in the corpus via its ranking decisions. We present a first study of the ability of search engines to drive pre-defined, targeted, content effects in the corpus using simple techniques. The first is based on the herding phenomenon - a celebrated result from the economics literature - and the second is based on biasing the relevance ranking function. The types of content effects we study are either topical or touch on specific document properties - length and inclusion of query terms. Analysis of ranking competitions we organized between incentivized publishers shows that the types of content effects we target can indeed be attained by applying our suggested techniques. These findings have important implications with regard to the role of search engines in shaping the corpus.
Functional Optimization in Complex Excitable Networks
Creators: name: Johnson, Samuel
name: Marro, J.
name: Torres, Joaquin J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the effect of varying wiring in excitable random networks in which connection weights change with activity to mold local resistance or facilitation due to fatigue. Dynamic attractors, corresponding to patterns of activity, are then easily destabilized according to three main modes, including one in which the activity shows chaotic hopping among the patterns. We describe phase transitions to this regime, and show a monotonous dependence of critical parameters on the heterogeneity of the wiring distribution. Such correlation between topology and functionality implies, in particular, that tasks which require unstable behavior --such as pattern recognition, family discrimination and categorization-- can be most efficiently performed on highly heterogeneous networks. It also follows a possible explanation for the abundance in nature of scale--free network topologies.
description: 7 pages, 3 figures
Influence of the growth gradient on surface wrinkling and pattern transition in growing tubular tissues
Creators: name: Liu, Rui-Cheng
name: Liu, Yang
name: Cai, Zongxi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Growth-induced pattern formations in curved film-substrate structures have attracted extensive attentions recently. In most existing literature, the growth tensor is assumed to be homogeneous or piecewise homogeneous. In this paper, we aim at clarifying the influence of a growth gradient on pattern formation and pattern evolution in bilayered tubular tissues under plane-strain deformation. In the framework of finite elasticity, a bifurcation condition is derived for a general material model and a generic growth function. Then we suppose that both layers are composed of neo-Hookean materials. In particular, the growth function is assumed to decay linearly either from the inner surface or from the outer surface. It is found that a gradient in the growth has a weak effect on the critical state, compared to the homogeneous growth type where both layers share the same growth factor. Furthermore, a finite element model is built to validate the theoretical model and to investigate the post-buckling behaviors. It is found that the associated pattern transition is not controlled by the growth gradient but by the ratio of the shear modulus between two layers. Different morphologies can occur when the modulus ratio is varied. The current analysis could provide useful insight into the influence of a growth gradient on surface instabilities and suggests that a homogeneous growth field may provide a good approximation on interpreting complicated morphological formations in multiple systems.
description: 21 pages, 12 figures
A Canadian trading company : an analysis of the potential benefits of transferring a Japanese-style export promotion and marketing concept to the Canadian economic environment
Creators: name: Stringer, Anne Marie
Publisher: name: University of British Columbia
Year: 2010

description: This paper is an attempt to look at the possibilities behind the federal government of Canada's proposal to create a new agency in the area of industrial export trade. According to the premises set down by the Government in its April 1980, Throne Speech, the initiative is primarily aimed at supporting small and medium-sized businesses in their efforts to penetrate foreign markets. It is natural for a government concerned with increasing competition abroad and rising unemployment in the industrial sector at home to start worrying about where industrial employment and overseas industrial markets are going to come from in the future. The wording of the Throne Speech and the policy studies undertaken prior to April 1980, regarding a potential national trading company seem to indicate that the Government had had the Japanese example of the trading house structure very much in mind, when closer study of such an enterprise was proposed, given Japan's thriving industrial sector and its successful export achievements. In the aftermath of the Throne Speech a Special Committee of the House of Commons was created in June of 1980 to further study the question of a future "National Trading Corporation." The Committee came down with its fourth and final report, Canada's Trading Challenge, in June of 1981, in which its basic recommendation after a year of deliberations was that "the federal government sponsor the development of a major Canadian trading corporation." This final conclusion by the Committee stands in direct contrast to evidence presented by witnesses before the Committee, and it seems to be an opinion reached by the Committee majority based on material and opinions obtained in addition to the briefs and the evidence gathered during the Committee's public hearings.
A Survey on Methods and Metrics for the Assessment of Explainability under the Proposed AI Act
Creators: name: Sovrano, Francesco
name: Sapienza, Salvatore
name: Palmirani, Monica
name: Vitali, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: This study discusses the interplay between metrics used to measure the explainability of the AI systems and the proposed EU Artificial Intelligence Act. A standardisation process is ongoing: several entities (e.g. ISO) and scholars are discussing how to design systems that are compliant with the forthcoming Act and explainability metrics play a significant role. This study identifies the requirements that such a metric should possess to ease compliance with the AI Act. It does so according to an interdisciplinary approach, i.e. by departing from the philosophical concept of explainability and discussing some metrics proposed by scholars and standardisation entities through the lenses of the explainability obligations set by the proposed AI Act. Our analysis proposes that metrics to measure the kind of explainability endorsed by the proposed AI Act shall be risk-focused, model-agnostic, goal-aware, intelligible & accessible. This is why we discuss the extent to which these requirements are met by the metrics currently under discussion.
description: Accepted paper at JURIX 2021
Global One-Dimensionality conjecture within Quantum General Relativity
Creators: name: Glinka, L. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The simple quantum gravity model, based on a new conjecture within the canonically quantized 3+1 general relativity, is presented. The conjecture states that matter fields are functionals of an embedding volume form only, and reduces the quantum geometrodynamics. By dimensional reduction the resulting theory is presented in the form of the Dirac equation, and application of the Fock quantization with the diagonalization procedure yields construction of the appropriate quantum field theory. The 1D wave function is derived, the corresponding 3-dimensional manifolds are discussed, and physical scales are associated with quantum correlations.
description: 16 pages, no figures, to appear in Gravitation and Cosmology
A (IN)EFICÁCIA DA APLICAÇÃO DA PENA PRIVATIVA DE LIBERDADE E A CRISE DO SISTEMA PRISIONAL NO BRASIL
Creators: name: André Boaz Mott
Publisher: name: Zenodo
Year: 2023

description: RESUMO

O tema proposto do presente trabalho é a ineficácia da aplicação das penas privativas de liberdade no Brasil associada à crise do sistema prisional. Este artigo tem por objetivo analisar, sucintamente, a eficácia das penas privativas de liberdade a fim de observar se elas ocasionam a crise prisional tão comentada nos últimos tempos. Dessa forma, se faz necessário trazer breves relatos sobre a origem e evolução da pena, para após adentrar nos sistemas penitenciários e verificar qual o sistema adotado pelo nosso ordenamento jurídico. Por fim, faz-se necessária uma discussão sobre a atual situação do sistema prisional brasileiro e os fatores que interferem na ressocialização carcerária, analisando-se, ainda, um desses fatores, a ineficácia da aplicação das penas privativas de liberdade. Realizou-se uma pesquisa bibliográfica considerando livros de vários autores e artigos científicos publicados na internet, os quais buscaram trazer discussões acerca do tema.

Palavras-chave: Pena. Prisão. Pena Privativa de Liberdade. Crise Prisional.
Influence of amorphous silica in perlite on compressive strength and pozzolanic reaction of blended cement paste
Creators: name: Piyachat  Suphawithayacharoenkun
name: Wunchock  Kroehong
name: Threerawat  Sinsiri
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2012
Subjects: Perlite X-ray, Diffraction, Analysis, Pozzolanic, Amorphous

description: 3, 39, KKU Engineering Journal
Attractors in Black
Creators: name: Bellucci, S.
name: Ferrara, S.
name: Marrani, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review recent results in the study of attractor horizon geometries (with non-vanishing Bekenstein-Hawking entropy) of dyonic extremal d=4 black holes in supergravity. We focus on N=2, d=4 ungauged supergravity coupled to a number n_{V} of Abelian vector multiplets, outlining the fundamentals of the special Kaehler geometry of the vector multiplets' scalar manifold (of complex dimension n_{V}), and studying the 1/2-BPS attractors, as well as the non-BPS (non-supersymmetric) ones with non-vanishing central charge. For symmetric special Kaehler geometries, we present the complete classification of the orbits in the symplectic representation of the classical U-duality group (spanned by the black hole charge configuration supporting the attractors), as well as of the moduli spaces of non-BPS attractors (spanned by the scalars which are not stabilized at the black hole event horizon). Finally, we report on an analogous classification for N>2-extended, d=4 ungauged supergravities, in which also the 1/N-BPS attractors yield a related moduli space.
description: 1+31 pages, 5 tables. Contribution to the Proceedings of the 3rd RTN Workshop ``Constituents, Fundamental Forces and Symmetries of the Universe'', 1-5 October 2007, Valencia, Spain
การทำให้กุ้งกุลาดำติดเชื้อไวรัส Penaeus monodon densovirus ในห้องปฏิบัติการ (Experimental Infection of Black Tiger Shrimp with  Penaeus  monodon  Densovirus
(PmDNV) )
Creators: name: ฉวีวรรณ ฉิมวัย
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: Penaeus monodon densovirus, PmDNV, HPV, experimental infection

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
A Banach space determined by the Weil height
Creators: name: Allcock, Daniel
name: Vaaler, Jeffrey D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J25, 11R04

description: The absolute logarithmic Weil height is well defined on the group of units of the algebraic closure of the rational numbers, modulo roots of unity, and induces a metric topology on this group. We show that the completion of this metric space is a Banach space over the field of real numbers. We further show that this Banach space is isometrically isomorphic to a co-dimension one subspace of L1 of a certain totally disconnected, locally compact space, equipped with a certain measure satisfying an invariance property with respect to the absolute Galois group.
New Constraints on Pluto's Sputnik Planitia Ice Sheet from a Coupled Reorientation-Climate Model
Creators: name: Johnson, Perianne E.
name: Keane, James T.
name: Young, Leslie A.
name: Matsuyama, Isamu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a coupled reorientation and climate model, to understand how true polar wander (TPW) and atmospheric condensation worked together to create the Sputnik Planitia (SP) ice sheet and reorient it to its present-day location on Pluto. SP is located at 18 N, 178 E, very close to the anti-Charon point, and it has been previously shown that this location can be explained by TPW reorientation of an impact basin as it fills with N2 ice. We readdress that hypothesis while including a more accurate treatment of Pluto's climate and orbital obliquity cycle. Our model again finds that TPW is a viable mechanism for the formation and present-day location of SP. We find that the initial impact basin could have been located north of the present-day location, at latitudes between 35 N and 50 N. The empty basin is constrained to be 2.5 -- 3 km deep, with enough N2 available to form at most a 1 -- 2 km thick ice sheet. Larger N2 inventories reorient too close to the anti-Charon point. After reaching the final location, the ice sheet undergoes short periods of sublimation and re-condensation on the order of ten meters of ice, due Pluto's variable obliquity cycle, which drives short periods of reorientation of a few km. The obliquity cycle also has a role in the onset of infilling; some initial basin locations are only able to begin accumulating N2 ice at certain points during the obliquity cycle. We also explore the sensitivity of the coupled model to albedo, initial obliquity, and Pluto's orbit.
description: Accepted for publication in PSJ
title: „Hier wie da wird geliebt“: Liebe als universales Phänomen in Verhandlungen zum Familienrecht
Creators: name: Schutter, Sabina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2016
Subjects: subject: Ehe
subject: eingetragene Lebenspartnerschaft
subject: Familienrecht
subject: Liebe
subject: ddc:300

description: Obwohl Liebe eines der zentralen Begründungsmotive dauerhafter Paarbeziehungen darstellt, wird der Begriff im deutschen Familienrecht mit Bezug auf die Ehe oder die eingetragene Lebenspartnerschaft nicht genannt. Davon ausgehend, dass in politischen Verhandlungen über Gesetzesänderungen eine Übersetzung gesellschaftlicher Realität in juristische Normen stattfindet, geht der Beitrag der folgenden Frage nach: Wie und wann sprechen Bundestagsabgeordnete von Liebe, wenn im Rahmen familienrechtlicher Reformen über Beziehungen zwischen hetero- und homosexuellen Paaren verhandelt wird? Das Material zeigt eine Spaltung zwischen einer Zuschreibung der Berechtigung von Liebe, die entweder mit sakralen Motiven in Verbindung gebracht wird, oder, wenn sie als unberechtigt gilt, als sexualisiertes Begehren abgewertet wird. Es ist außerdem darstellbar, dass eine universale Zuschreibung von Liebe bei hetero- und homosexuellen Paaren stattfindet, was allerdings wesentlich mit der Bereitschaft zur lebenslangen Unterhaltsverpflichtung zusammenhängt.
Long range magnetic dipole-dipole interaction mediated by a superconductor
Creators: name: Romach, Yoav
name: Wasserman, Tal
name: Tishby, Shai
name: Bar-Gill, Nir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computation and simulation requires strong coherent coupling between qubits, which may be spatially separated. Achieving this coupling for solid-state based spin qubits is a long-standing challenge. Here we theoretically investigate a method for achieving such coupling, based on superconducting nano-structures designed to channel the magnetic flux created by the qubits. We detail semi-classical analytical calculations and simulations of the magnetic field created by a magnetic dipole, depicting the spin qubit, positioned directly below nanofabricated apertures in a superconducting layer. We show that such structures could channel the magnetic flux, enhancing the dipole-dipole interaction between spin qubits and changing its scaling with distance, thus potentially paving the way for controllably engineering an interacting spin system.