cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin-orbit physics of j=1/2 Mott insulators on the triangular lattice
Creators: name: Becker, Michael
name: Hermanns, Maria
name: Bauer, Bela
name: Garst, Markus
name: Trebst, Simon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Heisenberg-Kitaev (HK) model on the triangular lattice is conceptually interesting for its interplay of geometric and exchange frustration. HK models are also thought to capture the essential physics of the spin-orbital entanglement in effective $j=1/2$ Mott insulators studied in the context of various 5d transition metal oxides. Here we argue that the recently synthesized Ba$_3$IrTi$_2$O$_9$ is a prime candidate for a microscopic realization of the triangular HK model. We establish that an infinitesimal Kitaev exchange destabilizes the 120$^\circ$ order of the quantum Heisenberg model and results in the formation of an extended $\mathbb{Z}_2$-vortex crystal phase in the parameter regime most likely relevant to the real material. Using a combination of analytical and numerical techniques we map out the entire phase diagram of the model, which further includes various ordered phases as well as an extended nematic phase around the antiferromagnetic Kitaev point.
description: 12 pages, 11 figures
The Financial Crisis in the Light of Modern - Meta Modern Discourse: Re-Conceptualising the Modern Knowledge System
Creators: name: Koutselini, Mary
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: The main aim of this paper is to contribute to the debate on today´s financial crisis through the Modern- Meta Modern discourse. It is argued that the debate of the financial crisis cannot be reduced solely to economic causes and that the deeper causes of the crisis are mainly philosophical, ethical, educational, and social. Most of the already proposed antidotes for today´s financial crisis (i.e. enhancement of the domestic financial system, emerging market and innovative products, better control of the financing system) ignore the deeper moral and educational crisis of modernity that places the responsibility for the financial crisis on citizens and their lack of savings. Meta-modernity opposes viewing citizens as consumers, as depersonalised, technically controlled objects of the financial and political system. It seeks more ethical standards in business, education, and politics and it encourages developing new perspectives for evaluating the financial practices. Meta-modern discourse supports the view that the financial crisis is a direct result of prioritising the interests of the power holders – banks and financial enterprises – at the expense of citizens’ well-being and value-based questions.
description: JSSE - Journal of Social Science Education, 2-2010: Civic and Economic Education and the Current Financial Crisis II
Boundedness of the space of stable logarithmic maps
Creators: name: Abramovich, Dan
name: Chen, Qile
name: Marcus, Steffen
name: Wise, Jonathan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that the moduli space of stable logarithmic maps with fixed numerical invariants, from logarithmic curves to a fixed projective target logarithmic scheme with fine and saturated logarithmic structure, is a proper algebraic stack. This was previously known only with further restrictions on the logarithmic structure of the target.
description: 32 pages, 2 figures. v3: Significant changes. Final version appears in the Journal of the European Mathematical Society
Financial Education
Creators: name: Reifner, Udo
name: Schelhowe, Anne
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: New, more or better financial education and financial literacy programmes should lead to improved financial capability, knowledge and outcomes. Yet we do not even know which terminology is most suitable for those projects who all intend to give an answer to a question which is less than clear. What is meant by the term “financial education”? Why did the “demand” for financial education suddenly increase? Have the numerous tasks which consumers in a modern society have to fulfill created this new field for financial education? Are their specific needs of financial markets which need adapted consumers as competent players? Or has the general level of education fallen? Would more ignorance on financial products perhaps increase the likelihood of these markets to care more about consumers? Do we truly need financial education at all and if so, as this article argues, what kind of financial education would respond to it? Based on five years of empirical research, on existing papers and curriculars for financial education and another five years of our own experiences with practical financial education in schools and with clients of debt advice agencies we would like to promote financial education as a form of consumer protection where consumers are seen collectively as the true masters of the economy.
description: JSSE - Journal of Social Science Education, 2-2010: Civic and Economic Education and the Current Financial Crisis II
Energy Driven Pattern Formation in Planar Dipole-Dipole Systems in the Presence of Weak Noise
Creators: name: Kent-Dobias, Jaron
name: Bernoff, Andrew J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study pattern formation in planar fluid systems driven by intermolecular cohesion (which manifests as a line tension) and dipole-dipole repulsion which are observed in physical systems including ferrofluids in Hele-Shaw cells and Langmuir layers. When the dipolar repulsion is sufficiently strong, domains undergo forked branching reminiscent of viscous fingering. A known difficulty with these models is that the energy associated with dipole-dipole interactions is singular at small distances. Following previous work, we demonstrate how to ameliorate this singularity and show that in the macroscopic limit, only the relative scale of the microscopic details of a system are relevant, and develop an expression for the system energy that depends only on a generalized line tension, Λ, that in turn depends logarithmically on that scale. We conduct numerical studies that use energy minimization to find equilibrium states. Following the subcritical bifurcations from the circle, we find a few highly symmetric stable shapes, but nothing that resembles the observed diversity of experimental and dynamically simulated domains. The application of a weak random background to the energy landscape stabilizes a smörgåsbord of domain morphologies recovering the diversity observed experimentally. With this technique, we generate a large sample of qualitatively realistic shapes and use them to create an empirical model for extracting Λ using only a shape's perimeter and morphology with high accuracy.
description: 19 pages, 11 figures
Remark on Laquer's theorem for circulant determinants
Creators: name: Yamaguchi, Naoya
name: Yamaguchi, Yuka
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 15A15, 15B99

description: Olga Taussky-Todd suggested the problem of determining the possible values of integer circulant determinants. To solve a special case of the problem, Laquer gave a factorization of circulant determinants. In this paper, we give a modest generalization of Laquer's theorem. Also, we give an application of the generalization to integer group determinants.
Introducing EVA: The Expected Value Algorithm
Creators: name: Ellington, Samuel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2024

description: In this project, I consider four decision-theoretic problems that arise in the study of chance and value: elementary financial, lottery financial, act/state-independent utilistic, and act/state-dependent utilistic. In response to them, I develop EVA: a set of computer algorithms written in Python and designed to tackle these problems by taking inputs from the user and performing relevant calculations with the goal of returning a recommendation from the user’s perspective. As the calculations required to return such a prognosis grow increasingly involved, EVA requires more and more inputs from the user, leaving room for discussions surrounding her efficacy. I offer arguments in favor of EVA’s performance but ultimately leave the question of her helpfulness up to the user.
A Didactic Reconstruction of the Financial and Economic Crisis
Creators: name: Schuhen, Michael
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: Theoretical approaches to constructivism have put learner autonomy into the spotlight of didactic discourse. Apart from the matter of pedagogic actions on how (constructivisticly) organised education might be arranged, this paper focuses on the perspective of didactic reconstruction. Thus, an observation-based research perspective is being adopted in this paper. The epistemic beliefs that have emerged over the course of the global financial and economic depression are reconstructed. The goal of the paper is to provide an insight into these different interpretations. In order to do this, university students were surveyed regarding this topic and the results of this qualitative study on these epistemic beliefs will be represented in this article. The paper tries to give answers on how students, who have been experiencing the financial and economic depression for nearly three years now, define its causes and what subsequent actions they would recommend. The results show that the main issue is not misinterpretation of political and economic knowledge but rather incomplete constructs based on only approximate knowledge.
description: JSSE - Journal of Social Science Education, 2-2010: Civic and Economic Education and the Current Financial Crisis II
$p$-adic properties of modular shifted convolution Dirichlet series
Creators: name: Bringmann, Kathrin
name: Mertens, Michael H.
name: Ono, Ken
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F37, 11G40, 11G05, 11F67

description: Hoffstein and Hulse recently introduced the notion of shifted convolution Dirichlet series for pairs of modular forms $f_1$ and $f_2$. The second two authors investigated certain special values of symmetrized sums of such functions, numbers which are generally expected to be mysterious transcendental numbers. They proved that the generating functions of these values in $h$-aspect are linear combinations of mixed mock modular forms and quasimodular forms. Here we examine the special cases when $f_1=f_2$ where, in addition, there is a prime $p$ for which $p^2$ divides the level. We prove that the mixed mock modular form is a linear combination of at most two weight 2 weakly holomorphic $p$-adic modular forms.
description: 13 pages, a few minor typos fixed in v2
title: Objets de l’exil, objets de soins
Creators: name: Thomas, Catherine
name: Levillayer, Laure
Publisher: name: Universität Graz
Year: 2021

description: Respectively a psychiatric nurse and an anthropologist, we work within a multidisciplinary
group of therapists. We use a complementary approach, as described by Georges Devereux,
combining the psychological and the anthropological approach of the subject with refugee
or asylum-seeker patients suffering from multiple trauma related to exile. In a state of great
vulnerability, separated from their loved ones, these people suffer from social isolation and
psychological disorganisation. The aim of our work is to lead them to psychological self-reliance.
Therefore, we try, by forging a bond, to reorganise their thoughts and bring back the
vital feeling of internal security. During these sessions, while we examine the connections
between the patient and their environment, their relatives and their culture, a variety of objects
may emerge. Either they are just mentioned through memories or dreams, or they are
presented in a more concrete way, shown on a photo, displayed in consultation or offered
to therapists as a gift. Jewellery, clothes, photographs, candles, cakes... All of these objects
carry meaningful life stories, memories and are full of emotion. We look at them closely in
order to work with the patients. Through a few clinical examples, we wish to share here the
unique stories of some of these objects that have come from far away, either companions of
exile or resilience tools in the host country, which have become therapeutic levers during
transcultural consultations. Therefore, we support the idea that listening to people telling
the life of their objects and the links they forge, receiving their emotions, contributes to the
co-construction of their psychic life and their social existence. Because the object shows the
strength of the social cohesion and is a landmark, it allows the patient to consider a future.
The object, anchored in the past, is used during transcultural consultations as a therapeutic
lever and becomes a tool for building a future.
description: Keywords:  Devereux, psychotrauma, transcultural consultation, objects of exil, therapeutic levers,
resilience
description: Mobile Culture Studies. The Journal, Vol. 7 2021, 35–42
Economics as a Social Science in French lycées :A Programme Shaped by the Evolution of a School Discipline
Creators: name: Chatel, Elisabeth
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: Since the end of the 1960s, courses in economics have become established in French lycées for pupils aged approximately 16 to 18 as part of both the general and technological (services) streams. There are no other specific programmes in economics at the other levels of the school system. In lower secondary schools (collèges), which cater for children aged between 11 and 15, economic phenomena are presented in a somewhat descriptive manner during history and geography lessons. These descriptions introduce children to an economic vocabulary that includes terms such as GDP, productivity, inflation, growth and development. However, the acquisition of this vocabulary does not lead on to the teaching of any real economic arguments, nor of economic concepts or theories in the strict sense. Economics as just defined in not taught in the vocational streams either. The aim of this article is to characterise the teaching of economics that is provided in the general streams of French upper secondary schools as part of a subject called Economic and Social Sciences (ESS). It is here that economics teaching is most heavily concentrated; furthermore, it is the only one of the two economics programmes in French lycées for which curriculum studies exist. The article will show that, despite the considerable changes it has undergone, this programme has retained the critical and socially aware approach that has been present since it was first established. It was by no means evident that such an approach, inspired originally by the work of historians of the Annales school, would be adopted, even less retained, since it goes against the grain of developments in economics at university level, both in French universities and internationally, during the two decades between 1980 and the year 2000 (LeVan Lemesle 1983; Le Merrer 1990). During this period, the economics taught in universities became less descriptive and more formalised and moved away from the other social sciences. Economists have become increasingly adept at manipulating models and have ceased to view economic and social problems from an historical perspective (Hogdson et al. 2009). The teaching of economic and social sciences in French schools has not followed this course and has been challenged on numerous occasions, most notably by academic economists and employers’ representatives. The fact that its original critical approach has been maintained is due in no small measure to action taken by teachers.
description: JSSE - Journal of Social Science Education, 2-2010: Civic and Economic Education and the Current Financial Crisis II
A mixed-integer programming model for identifying intuitive ambulance dispatching policies
Creators: name: Albert, Laura A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Markov decision process models and algorithms can be used to identify optimal policies for dispatching ambulances to spatially distributed customers, where the optimal policies indicate the ambulance to dispatch to each customer type in each state. Since the optimal solutions are dependent on Markov state variables, they may not always correspond to a simple set of rules when implementing the policies in practice. Restricted policies that conform to a priority list for each type of customer may be desirable for use in practice, since such policies are transparent, explainable, and easy to implement. A priority list policy is an ordered list of ambulances that indicates the preferred order to dispatch the ambulances to a customer type subject to ambulance availability. This paper proposes a constrained Markov decision process model for identifying optimal priority list policies that is formulated as a mixed integer programming model, does not extend the Markov state space, and can be solved using standard algorithms. A series of computational examples illustrate the benefit of intuitive policies. The optimal mixed integer programming solutions to the computational examples have objective function values that are close to those of the unrestricted model and are superior to those of heuristics.
Add Health as a Resource for the Science of the Exposome: Rural-Urban Commuting Area (RUCA) Codes
Creators: name: Godwin, Andrea N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2024

description: This user guide is one in a set of user guides focusing on the built, environmental, and natural features of geopositioned/geocoded Add Health respondent locations over Waves I-VI. Collectively, they describe exposomic measures in the following three domains:
Distribution of random Cantor sets on Tubes
Creators: name: Chen, Changhao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We show that there exist $(d-1)$ - Ahlfors regular compact sets $E \subset \mathbb{R}^{d}, d\geq 2$ such that for any $t< d-1$, we have \[ \sup_T \frac{\mathcal{H}^{d-1}(E\cap T)}{w(T)^t}0$. This settles a question of T. Orponen. The sets we construct are random Cantor sets, and the method combines geometric and probabilistic estimates on the intersections of these random Cantor sets with affine subspaces.
description: 15 pages, 3 figures
From Texts to Pictures in Teaching Civics. Participant Observation in Mark’s Classroom
Creators: name: Erixon, Per-Olof
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: We are now living in a “new media age”, with a dramatic shift from the linguistic to the visual, from books and book pages to screens and windows (Kress, 2003). This article offsets out to explore what happens to educational activities in schools when electronic media and pictures replace written texts. The article draws on interviews and classroom observations of a particular Swedish vocational upper secondary programme, where the social studies teacher observes that students are finding it increasingly difficult to benefit from written texts. Theoretically, the study draws on Meyrowitz (1985/1986) theories concerning the relationship among media, situations and behaviour and the effect of a shift from “print situations” to “electronic situations” on a broad range of social role and Bernstein’s (1996/2000) notions of ‘recontextualisation’, ‘framing’ and ‘classification’. The study shows that classroom relations are changing; hierarchies between students and teachers are being broken down, and classification of subjects is affected in the sense that the students’ own interpretations and references are beginning to govern teaching when pictures and electronic media enter the educational discourse.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
Nematic spectral signatures of the Hund's metal
Creators: name: Fanfarillo, Laura
name: Valli, Angelo
name: Capone, Massimo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show, by means of dynamical mean-field theory calculations, that the experimental fingerprints of the nematic order in iron-based superconductors are intrinsically connected with the electronic correlations in the Hund's correlated metallic state and they can not be accessed via a renormalized quasiparticle picture. In particular, our results show that: (i) in a metal in which correlations are dominated by the Hund's coupling the nematic ordering does not produce a rigid energy shift in the photoemission spectra, but a much richer spectral weight redistribution which mirrors the experimental results; (ii) the nematic ordering is characterized by an orbital-selective coherence induced by the Hund's physics in agreement with the experimental picture.
description: Important revisions, new content added. Final version as published
How to Deal with Party Politics at School? (1964)
Creators: name: Engelhardt, Rudolf
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: Might the teacher’s political point of view not have an impact on his pupils concerning the way he is going to deal with current political issues? According to the above discussed caricature [interpreting a political caricature is the previous case Engelhardt discusses, HL], this neither caused any difficulties nor did it have a negative effect in a political sense. Hence, whatever political party the teacher might belong to or favor, it should not have an effect on the way this caricature is interpreted or evaluated.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
Echo spectroscopy of Anderson localization
Creators: name: Micklitz, T.
name: Müller, C. A.
name: Altland, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a conceptually new framework to study the onset of Anderson localization in disordered systems. The idea is to expose waves propagating in a random scattering environment to a sequence of short dephasing pulses. The system responds through coherence peaks forming at specific echo times, each echo representing a particular process of quantum interference. We suggest a concrete realization for cold gases, where quantum interferences are observed in the momentum distribution of matter waves in a laser speckle potential. This defines a challenging, but arguably realistic framework promising to yield unprecedented insight into the mechanisms of Anderson localization.
description: 14 pages, 7 figures; published version
ICCS International Civics and Citizenship Study
Creators: name: Toots, Anu
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: In November 2010 the largest international study ever conducted on civic education in secondary schools has been released in Brussels. The study was performed under the auspices of the International Association for the Evaluation of Educational Achievement (IEA), an independent consortium that brings together educational researchers and policy makers in 62 countries around the world. The IEA is probably more widely known in connection of large-scale comparative studies on educational assessment in math and science (TIMSS) and in reading (PIRLS). Yet, the association has longstanding and impressive expertise also in civic education. The first study in this area has been carried out already in 1971 (Torney et al., 1975), the second – so called CIVED in 1999 (Torney-Purta et al., 2001) and now, ten years later, 38 counties around the world participated in the third study – the IEA International Civic and Citizenship Education Study (ICCS). The study tested in 2008–2009 over 140,000 lower secondary students, over 62,000 teachers and headmasters from 5,300 schools in order to analyse how young people are prepared to undertake their roles as citizens.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
On Suspicious Coincidences and Pointwise Mutual Information
Creators: name: Williams, Christopher K. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Barlow (1985) hypothesized that the co-occurrence of two events $A$ and $B$ is "suspicious" if $P(A,B) \gg P(A) P(B)$. We first review classical measures of association for $2 \times 2$ contingency tables, including Yule's $Y$ (Yule, 1912), which depends only on the odds ratio $λ$, and is independent of the marginal probabilities of the table. We then discuss the mutual information (MI) and pointwise mutual information (PMI), which depend on the ratio $P(A,B)/P(A)P(B)$, as measures of association. We show that, once the effect of the marginals is removed, MI and PMI behave similarly to $Y$ as functions of $λ$. The pointwise mutual information is used extensively in some research communities for flagging suspicious coincidences, but it is important to bear in mind the sensitivity of the PMI to the marginals, with increased scores for sparser events.
description: 9 pages, 1 figure. Addendum added March 2023
title: From Anonymous, Objectified Images to Subjects Mirroring Multiple Identities
Creators: name: Viora, Angela
Publisher: name: Universität Graz
Year: 2021

description: The Foreigner – Unknown Unlabelled Unexpected (2016, 2018) is a durational and
participatory live performance that I designed and performed as a personal response to
the migration question involving Europe, Africa, and the Middle East in the past decades.
The objects analysed in this essay are the images of those dead migrants’ bodies covered by
white cloths on the Italian and Greek shores. I am Italian and I have been on some of those
shores.
We mainly experience these bodies as images on screens via the media. These bodies have
no identity, they are “the foreigners”. We, the viewers, can forget about them by switching
our screens off: due to way they are presented by the media, “the foreigners” cease to be
subjects and become simple objects, images. What would happen if I removed the cold
and reassuring mediation of the screens and recreate that image in flesh, in public spaces
crossed by people in their everyday lives? How would people react to that objectified image
- now a breathing body, and thus, a subject?
description: Keywords:  Foreigner, migration, performance art, objects, subjects, audience
description: Mobile Culture Studies. The Journal, Vol. 7 2021, 43–60
Reassessing the sensitivity to leptonic CP violation
Creators: name: Blennow, Mattias
name: Coloma, Pilar
name: Fernandez-Martinez, Enrique
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We address the validity of the usual procedure to determine the sensitivity of neutrino oscillation experiments to CP violation. An explicit calibration of the test statistic is performed through Monte Carlo simulations for several experimental setups. We find that significant deviations from a $χ^2$ distribution with one degree of freedom occur for experimental setups with low sensitivity to $δ$. In particular, when the allowed region to which $δ$ is constrained at a given confidence level is comparable to the whole allowed range, the cyclic nature of the variable manifests and the premises of Wilk's theorem are violated. This leads to values of the test statistic significantly lower than a $χ^2$ distribution at that confidence level. On the other hand, for facilities which can place better constraints on $δ$ the cyclic nature of the variable is hidden and, as the potential of the facility improves, the values of the test statistics first become slightly higher than and then approach asymptotically a $χ^2$ distribution. The role of sign degeneracies is also discussed.
description: 14 pages, 5 figures, RevTeX4. The discussion of the results has been improved and considerably extended. Version accepted for publication in JHEP
Quantum Brownian Motion with Inhomogeneous Damping and Diffusion
Creators: name: Massignan, Pietro
name: Lampo, Aniello
name: Wehr, Jan
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the microscopic model of quantum Brownian motion, describing a Brownian particle interacting with a bosonic bath through a coupling which is linear in the creation and annihilation operators of the bath, but may be a nonlinear function of the position of the particle. Physically, this corresponds to a configuration in which damping and diffusion are spatially inhomogeneous. We derive systematically the quantum master equation for the Brownian particle in the Born-Markov approximation and we discuss the appearance of novel terms, for various polynomials forms of the coupling. We discuss the cases of linear and quadratic coupling in great detail and we derive, using Wigner function techniques, the stationary solutions of the master equation for a Brownian particle in a harmonic trapping potential. We predict quite generally Gaussian stationary states, and we compute the aspect ratio and the spread of the distributions. In particular, we find that these solutions may be squeezed (super-localized) with respect to the position of the Brownian particle. We analyze various restrictions to the validity of our theory posed by non-Markovian effects and by the Heisenberg principle. We further study the dynamical stability of the system, by applying a Gaussian approximation to the time dependent Wigner function, and we compute the decoherence rates of coherent quantum superpositions in position space. Finally, we propose a possible experimental realization of the physics discussed here, by considering an impurity particle embedded in a degenerate quantum gas.
description: 23 pages, 5 figures
Universality conjecture and results for a model of several coupled positive-definite matrices
Creators: name: Bertola, Marco
name: Bothner, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 60B20, Secondary 34E05, 33C47, 33E20

description: The paper contains two main parts: in the first part, we analyze the general case of $p\geq 2$ matrices coupled in a chain subject to Cauchy interaction. Similarly to the Itzykson-Zuber interaction model, the eigenvalues of the Cauchy chain form a multi level determinantal point process. We first compute all correlations functions in terms of Cauchy biorthogonal polynomials and locate them as specific entries of a $(p+1)\times (p+1)$ matrix valued solution of a Riemann-Hilbert problem. In the second part, we fix the external potentials as classical Laguerre weights. We then derive strong asymptotics for the Cauchy biorthogonal polynomials when the support of the equilibrium measures contains the origin. As a result, we obtain a new family of universality classes for multi-level random determinantal point fields which include the Bessel$_ν$ universality for $1$-level and the Meijer-$G$ universality for $2$-level. Our analysis uses the Deift-Zhou nonlinear steepest descent method and the explicit construction of a $(p+1)\times (p+1)$ origin parametrix in terms of Meijer G-functions. The solution of the full Riemann-Hilbert problem is derived rigorously only for $p=3$ but the general framework of the proof can be extended to the Cauchy chain of arbitrary length $p$.
description: 45 pages, 7 figures. To appear in Commun. Math. Phys. Version 2 contains minor changes in the introduction and updates literature
Video Polyp Segmentation: A Deep Learning Perspective
Creators: name: Ji, Ge-Peng
name: Xiao, Guobao
name: Chou, Yu-Cheng
name: Fan, Deng-Ping
name: Zhao, Kai
name: Chen, Geng
name: Van Gool, Luc
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We present the first comprehensive video polyp segmentation (VPS) study in the deep learning era. Over the years, developments in VPS are not moving forward with ease due to the lack of large-scale fine-grained segmentation annotations. To address this issue, we first introduce a high-quality frame-by-frame annotated VPS dataset, named SUN-SEG, which contains 158,690 colonoscopy frames from the well-known SUN-database. We provide additional annotations with diverse types, i.e., attribute, object mask, boundary, scribble, and polygon. Second, we design a simple but efficient baseline, dubbed PNS+, consisting of a global encoder, a local encoder, and normalized self-attention (NS) blocks. The global and local encoders receive an anchor frame and multiple successive frames to extract long-term and short-term spatial-temporal representations, which are then progressively updated by two NS blocks. Extensive experiments show that PNS+ achieves the best performance and real-time inference speed (170fps), making it a promising solution for the VPS task. Third, we extensively evaluate 13 representative polyp/object segmentation models on our SUN-SEG dataset and provide attribute-based comparisons. Finally, we discuss several open issues and suggest possible research directions for the VPS community.
description: Accepted by Machine Intelligence Research 2022 (Project Page: https://github.com/GewelsJI/VPS)
Parteipolitik in der Schule? (1964)
Creators: name: Engelhardt, Rudolf
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: Wird die Aktualisierung des Unterrichts den Lehrer nicht in Versuchung führen, seine parteipolitischen Ansichten den Schülern zu suggerieren? Die eben besprochene Karikatur war in dieser Hinsicht durchaus unproblematisch und kein heißes Eisen im Sinne der Parteipolitik. Welcher Partei der Lehrer auch an-[87/88]gehören oder welcher er auch nahestehen mag, auf die Deutung und Auswertung der Karikatur dürfte das keinen Einfluß haben.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
title: The transfer of architectural heritage as a transcultural tool
Creators: name: Colonnese, Fabio
name: Grazia DÁ melio, Maria
name: Grieco, Lorenzo
Publisher: name: Universität Graz
Year: 2021

description: The story of King Ezana’s Obelisk of Axum and its Italian exile represents the epitomic
example of the cultural and political implications of relocating architecture. The 4thcentury
CE stele in basaltic stone, which stood broken in Axum, modern Ethiopia, was
taken as war booty by the Italian troops after the military occupation of 1935. In 1937, the
obelisk was transferred to Rome and re-erected in front of the Ministry of Italian Africa,
overlooking the Circus Maximus: a graft resulting in cultural contaminations. Ethiopia
had been asking for its restitution since 1947, but the stele was returned only in 2005. It
was disassembled and reduced again into pieces, then transferred to Ethiopia by three cargo
flight. The restitution required the export of Italian technologies and professionals to carry
out the re-composition, providing the African country with the necessary knowledge to
re-erect the other obelisks lying broken in Axum. From this point of view, the return of the
obelisk prompted a process of knowledge transfer, opening new opportunities of cultural
cooperation.
description: Keywords:  Obelisk of Axum, Return of cultural property, Postcolonialism, Structure relocation,
Ethiopia
description: Mobile Culture Studies. The Journal, Vol. 7 2021, 61– 78
Controversy in the Classroom. The Democratic Power of Discussion
Creators: name: Grammes, Tilman
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: “One warm day in the spring of 2006, I visited a U.S. History class at a public charter school in a large Midwestern city …” (p. 1) This is the beginning of Diana Hess’ book about the methods of democratic discussion in classroom and it indicates its strong narrative quality including several teacher portraits and scenic vignettes. The book is winner of the 2009 “Exemplary Research in Social Studies” award from the National Council for the Social Studies. In an interview with Kerry G. Hill for the campus journal (School of Education, University of Wisconsin http://campusconnections.education.wisc.edu/post/LEARNING-Diana-Hess.aspx) the author roots the book’s content back to her own biography and socialization: While growing up in northern Illinois, Diana Hess recalls members of her family engaging in lively, raucous political discussions. “Disagreement wasn’t a negative thing,” she remembers.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
title: Unclaimed objects, reclaimed history
Creators: name: Sbuttoni, Claudia
Publisher: name: Universität Graz
Year: 2021

description: This article examines the interplay between cultural identity, objects and memory in the
Istrian exile community in Trieste, Italy. The close of the second World War and the transfer
of Istria from Italy to the newly established socialist state of Yugoslavia saw the migration
of the majority of Italians to Trieste and abroad. This article focuses on the objects held
in Magazzino 18, a warehouse at the old port of Trieste, which were left unclaimed after
the Istrian exodus of 1943–56. It analyses 1) how the exile community relies on the tools
of Holocaust memorialisation to carve out its own narrative through objects, 2) how the
imposition of the Holocaust model undermines intercultural understanding by insisting on
a frame of competition and singularity, and 3) how that process ultimately obscures the role
and responsibility of Italian fascism in the borderland.
description: Keywords:  Fascism, Italy, Istria, memory, exodus, Holocaust, material culture, borders
description: Mobile Culture Studies. The Journal, Vol. 7 2021, 79–96
On the index of powers of edge ideals
Creators: name: Bigdeli, Mina
name: Herzog, Juergen
name: Zaare-Nahandi, Rashid
Publisher: name: arXiv
Year: 2014
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: Primary 13D02, 13C13, Secondary 05E40

description: The index of a graded ideal measures the number of linear steps in the graded minimal free resolution of the ideal. In this paper we study the index of powers and squarefree powers of edge ideals. Our results indicate that the index as a function of the power of an edge ideal $I$ is strictly increasing if $I$ has linear relations. Examples show that this need not to be the case for monomial ideals generated in degree greater than two.
description: 21 pages, 1 figure
Target-oriented least-squares reverse-time migration using Marchenko double-focusing: reducing the artifacts caused by overburden multiples
Creators: name: Shoja, Aydin
name: van der Neut, Joost
name: Wapenaar, Kees
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Geophysicists have widely used Least-squares reverse-time migration (LSRTM) to obtain high-resolution images of the subsurface. However, LSRTM needs an accurate velocity model similar to other migration methods. Otherwise, it suffers from depth estimation errors and out of focus images. Moreover, LSRTM is computationally expensive and it can suffer from multiple reflections. Recently, a target-oriented approach to LSRTM has been proposed, which focuses the wavefield above the target of interest. Remarkably, this approach can be helpful for imaging below complex overburdens and subsalt domains. Moreover, this approach can significantly reduce the computational burden of the problem by limiting the computational domain to a smaller area. Nevertheless, target-oriented LSRTM still needs an accurate velocity model of the overburden to focus the wavefield accurately and predict internal multiple reflections correctly. In recent years, Marchenko redatuming has emerged as a novel data-driven method that can predict Green's functions at any arbitrary depth, including all orders of multiples. The only requirement for this method is a smooth background velocity model of the overburden. Moreover, with Marchenko double-focusing, one can make virtual sources and receivers at a boundary above the target and bypass the overburden. This paper proposes a new algorithm for target-oriented LSRTM, which fits the double-focused data with modeled data at a boundary above the target of interest. Consequently, our target-oriented LSRTM algorithm correctly accounts for all orders of overburden-related multiples, resulting in a significant reduction of the artifacts caused by overburden internal multiple reflections in the target image compared to conventional LSRTM.
description: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Geophysical Journal International following peer review
title: Etude comparative sur le contenu culturel des trois manuels d'anglais utilisés dans trois gymnases au Mozambique, en Chine, et dans le Canton de Vaud
title: Etude comparative sur le contenu culturel des trois manuels d'anglais utilisés dans trois gymnases au Mozambique, en Chine, et dans le Canton de Vaud
titleType: AlternativeTitle
Creators: name: Liu, Xinxin
Publisher: name: Unknown
Year: 0
Subjects: subject: Manuel d’anglais
subject: Langue-culture
subject: Mozambique
subject: Chine
subject: Interculturel
subject: Anglais comme langue internationale

description: Ce présent travail est né d’un échange que j’ai participé avec des étudiants de l’Université Pédagogique de Maputo au Mozambique dans le cadre du programme PEERS, organisé par la HEP-VD. Il a pour but de comparer le contenu culturel dans trois manuels d’anglais utilisés dans trois pays – le Mozambique, la Chine et la Suisse – destinés aux élèves de deuxième année de gymnase. Dans un premier temps, j’ai explicité la situation complexe des pays et régions considérées anglophones et le statut de l’anglais comme une langue internationale très utilisée entre deux locuteurs de langues maternelles différentes, qui différencie cette langue des autres langues étrangères enseignées. Ensuite, j’ai comparé brièvement le contexte de l’enseignement post-obligatoire dans les trois pays. Selon l’origine de la culture, j’ai réparti le contenu culturel dans les manuels en trois catégories – la culture source, la culture cible et la culture internationale, et j’ai calculé le pourcentage de chaque catégorie dans les textes de lecture des trois manuels. Les tableaux qui en résultent montrent que le manuel mozambicain se concentre presque uniquement sur la culture mozambicaine, alors que le manuel chinois a un contenu culturel réparti entre la culture chinoise et la culture anglophone ainsi que des récits sur l’interculturalité. Le manuel utilisé dans mon gymnase en Suisse, par contre, contient très peu de traces explicites de la culture. Sa valorisation de l’individualisme, toutefois, montre que ce manuel représente des valeurs occidentales. En comparant le contenu culturel des trois manuels, j’ai pu observer des enjeux culturels et politiques qui sont associés avec chacun et cette étude me permettra d’avoir un regard critique envers le contenu culturel dans les moyens d’enseignement et d’être plus attentive à quel contenu culturel je choisis de présenter aux élèves.
Concepts and Perceptions of Democracy and Governance beyond the Nation State: Qualitative Research in Education for European Citizenship
Creators: name: Eis, Andreas
Publisher: name: JSSE - Journal of Social Science Education
Year: 2010

description: The empirical research presented in this paper focuses on concepts and perceptions of European politics and citizenship which are expressed by students and teachers in secondary schools. The qualitative study is based on semi-standardized interviews, written surveys, and classroom research (video transcripts, observation records). The results suggest that many young people are amenable towards transnational patterns of identity and they tend to combine pragmatic-optimistic expectations with European Union citizenship. Many of the students interviewed seem willing to adapt themselves to a larger European environment. However, many of the teachers voiced ambivalent notions while expressing veiled scepticism, although they rarely expressed open criticism based on their own fears towards political developments in a unified Europe. The classroom research shows that in the examined civic education lessons, the everyday concepts of students are seldom questioned and sparsely developed towards social-science-based explanatory models. Sometimes even misleading concepts are enforced in classroom interaction instead of being clarified by the development of adequate categories and models.
description: JSSE - Journal of Social Science Education, 3-2010: Qualitative Research – Voices from Civic Education Classrooms
Development of Universal Databases and Predictive Tools for Two-Phase Heat Transfer and Pressure Drop in Cryogenic Flow Boiling Heated Tube Experiments
Creators: name: Ganesan, Vishwanath
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 401211
subject: Multiphysics flows (incl. multiphase and reacting flows)
classificationCode: 401205
subject: Experimental methods in fluid flow, heat and mass transfer
classificationCode: 401213
subject: Turbulent flows

description: In this study, universal databases and semi-empirical correlations are developed for cryogenic two-phase heat transfer and pressure drop in heated tubes undergoing flow boiling.
OЦЕНКА ПОВЕРХНОСТЕЙ ТРЕНИЯ ЗУБЬЕВ
Creators: name: БАЛБЕКОВА ВАЗИРАИ
name: ИБРАГИМОВА ШАХНОЗА НАСРУЛЛА ҚИЗИ
Publisher: name: Глобус
Year: 2020
Subjects: АБРАЗИВНЫЕ ЧАСТИЦЫ
ТРЕНИЯ
ШЕСТЕРЕН
МИКРОРЕЗАНИЮ
ДЕТАЛЕЙ
ABRASIVE PARTICLES
FRICTION
GEARS
MICRO-CUTTING
PARTS

description: В статья в результате многократной деформации металла того же размера, что и абразивные частицы, расположенные в клиновидном пространстве зубьев, процесс описывается как происходящий в активном присутствии абразивных частиц до их разрушения из-за усталости материала.