cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On higher dimensional gravity: the Lagrangian, its dimensional reduction and a cosmological model
Creators: name: Verwimp, Theo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By dimensional reduction of the Lovelock Lagrangian, effective four-dimensional field equations and expressions for the cosmological and gravitational constants are obtained. A cosmological model is discussed with the n-torus as internal space.
description: 11 pages, a typo in equation (3.17) of the original publication has been corrected
Wigner function with correlation damping
Creators: name: Barletti, l.
name: Bordone, P.
name: Demeio, L.
name: Giovannini, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the effect of the decoherence-induced reduction of correlation length on a one-dimensional scattering problem by solving numerically the evolution equation for the Wigner function with decoherence proposed in [L. Barletti, G. Frosali and E. Giovannini, Journal of Computational and Theoretical Transport 47, 209 (2018)]. The numerical solution is achieved by the Splitting-Scheme algorithm. Three cases are examined, corresponding to a reflection-dominated regime, a transmission-dominated regime and an intermediate one. The dynamic evolution of the Wigner function is followed until the separation process of the reflected and of the transmitted packets is complete and it is observed for three different values of the correlation length. The outcomes show a broadening and flattening of the Wigner function which becomes progressively more pronounced as the correlation length is decreased. This results in a reduced reflection at low energies and in a reduced transmission at high energies.
description: 21 pages, 13 figures
Renata Kobylarz, Walka o pamięć. Polityczne aspekty obchodów rocznicy powstania w getcie warszawskim 1944-1989
Creators: name: Zok, Michael
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2012

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 61 Nr. 1 (2012)
Coulomb impurity in graphene
Creators: name: Biswas, Rudro R.
name: Sachdev, Subir
name: Son, Dam T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the problem of screening of an electrically charged impurity in a clean graphene sheet. When electron-electron interactions are neglected, the screening charge has a sign opposite to that of the impurity, and is localized near the impurity. Interactions between electrons smear out the induced charge density to give a large-distance tail that follows approximately, but not exactly, an r^{-2} behavior and with a sign which is the same as that of the impurity.
description: 10 pages, 3 figures; (v2) Corrected sign error in Eq. (13); (v3) corrected figures
Delayed buckling of spherical shells due to viscoelastic knockdown of the critical load
Creators: name: Stein-Montalvo, Lucia
name: Holmes, Douglas P.
name: Coupier, Gwennou
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We performed dynamic pressure buckling experiments on defect-seeded spherical shells made of a common silicone elastomer. Unlike in quasi-static experiments, shells buckled at ostensibly subcritical pressures (i.e. below the experimentally-determined load at which buckling occurs elastically), often following a significant time delay. While emphasizing the close connections to elastic shell buckling, we rely on viscoelasticity to explain our observations. In particular, we demonstrate that the lower critical load may be determined from the material properties, which is rationalized by a simple analogy to elastic spherical shell buckling. We then introduce a model centered on empirical quantities to show that viscoelastic creep deformation lowers the critical load in the same predictable, quantifiable way that a growing defect would in an elastic shell. This allows us to capture how both the critical deflection and the delay time depend on the applied pressure, material properties, and defect geometry. These quantities are straightforward to measure in experiments. Thus, our work not only provides intuition for viscoelastic behavior from an elastic shell buckling perspective, but also offers an accessible pathway to introduce tunable, time-controlled actuation to existing mechanical actuators, e.g. pneumatic grippers.
description: 18 pages, 9 figures
The Morphology of Exciting Dark Matter and the Galactic 511 keV Signal
Creators: name: Cappiello, Christopher V.
name: Jafs, Michael
name: Vincent, Aaron C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the morphology of the 511 keV signal that could be produced by exciting dark matter (XDM) in the Milky Way. In this model, collisions between dark matter particles excite the dark matter to a state that can then decay back to the ground state, releasing an electron-positron pair. These electrons and positrons would then annihilate, producing 511 keV photons that could explain the 511 keV signal seen by INTEGRAL at the Galactic Center. We compare the resulting flux with the most recent INTEGRAL data, performing the first full statistical analysis of the exciting dark matter model. We focus on exciting dark matter in the mass and cross section ranges 100 GeV $\lesssim m_χ \lesssim$ 3 TeV and $10^{-19}$ cm$^3$ s$^{-1} \lesssim \langle σv \rangle \lesssim 10^{-16}$ cm$^3$ s$^{-1}$. We show that exciting dark matter can provide a significantly better fit than the simpler case of annihilating dark matter, with $Δχ^2 > 16$ for all but one of the density profiles we consider.
description: 6 pages, 3 figures. Updated to fix typos and match the published version
Additional file 1 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 1
Sebastian Rimestad, The Challenges of Modernity to the Orthodox Church in Estonia and Latvia (1917-1940)
Creators: name: Bogojavlenska, Svetlana
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2014

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 63 Nr. 2 (2014)
Rho meson condensation at finite isospin chemical potential in a holographic model for QCD
Creators: name: Aharony, Ofer
name: Peeters, Kasper
name: Sonnenschein, Jacob
name: Zamaklar, Marija
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the effect of an isospin chemical potential μ_I in the Sakai-Sugimoto model, which is the string dual of a confining gauge theory related to large N_c QCD, at temperatures below the chiral symmetry restoration temperature. For small chemical potentials we show that the results agree with expectations from the low-energy chiral Lagrangian, and the charged pion condenses. When the chemical potential reaches a critical value μ_I = μ_{crit} ~ 1.7 m_ρ, the lowest vector meson (the "rho meson") becomes massless, and it condenses (in addition to the pion condensate) for μ_I > μ_{crit}. This spontaneously breaks the rotational symmetry, as well as a residual U(1) flavor symmetry. We numerically construct the resulting new ground state for μ_I > μ_{crit}.
description: 33 pages, 7 figures; v2: references added, minor corrections; v3: added footnote about other possible condensate
Learning Early Exit Strategies for Additive Ranking Ensembles
Creators: name: Busolin, Francesco
name: Lucchese, Claudio
name: Nardini, Franco Maria
name: Orlando, Salvatore
name: Perego, Raffaele
name: Trani, Salvatore
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: Modern search engine ranking pipelines are commonly based on large machine-learned ensembles of regression trees. We propose LEAR, a novel - learned - technique aimed to reduce the average number of trees traversed by documents to accumulate the scores, thus reducing the overall query response time. LEAR exploits a classifier that predicts whether a document can early exit the ensemble because it is unlikely to be ranked among the final top-k results. The early exit decision occurs at a sentinel point, i.e., after having evaluated a limited number of trees, and the partial scores are exploited to filter out non-promising documents. We evaluate LEAR by deploying it in a production-like setting, adopting a state-of-the-art algorithm for ensembles traversal. We provide a comprehensive experimental evaluation on two public datasets. The experiments show that LEAR has a significant impact on the efficiency of the query processing without hindering its ranking quality. In detail, on a first dataset, LEAR is able to achieve a speedup of 3x without any loss in NDCG1@0, while on a second dataset the speedup is larger than 5x with a negligible NDCG@10 loss (< 0.05%).
description: 5 pages, 3 figures, ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 21)
Does Unpredictability Influence Driving Behavior?
Creators: name: Samavi, Sepehr
name: Shkurti, Florian
name: Schoellig, Angela P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In this paper we investigate the effect of the unpredictability of surrounding cars on an ego-car performing a driving maneuver. We use Maximum Entropy Inverse Reinforcement Learning to model reward functions for an ego-car conducting a lane change in a highway setting. We define a new feature based on the unpredictability of surrounding cars and use it in the reward function. We learn two reward functions from human data: a baseline and one that incorporates our defined unpredictability feature, then compare their performance with a quantitative and qualitative evaluation. Our evaluation demonstrates that incorporating the unpredictability feature leads to a better fit of human-generated test data. These results encourage further investigation of the effect of unpredictability on driving behavior.
description: Accepted to IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2023
Additional file 2 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 2
A multidimensional grid-adaptive relativistic magnetofluid code
Creators: name: van der Holst, B.
name: Keppens, R.
name: Meliani, Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A robust second order, shock-capturing numerical scheme for multi-dimensional special relativistic magnetohydrodynamics on computational domains with adaptive mesh refinement is presented. The base solver is a total variation diminishing Lax-Friedrichs scheme in a finite volume setting and is combined with a diffusive approach for controlling magnetic monopole errors. The consistency between the primitive and conservative variables is ensured at all limited reconstructions and the spatial part of the four velocity is used as a primitive variable. Demonstrative relativistic examples are shown to validate the implementation. We recover known exact solutions to relativistic MHD Riemann problems, and simulate the shock-dominated long term evolution of Lorentz factor 7 vortical flows distorting magnetic island chains.
description: accepted for publication in Computer Physics Communications
The role of right-handed neutrinos in $b\to c τ\, (πν_τ, ρν_τ, μ\bar ν_μν_τ) \barν_τ$ from visible final-state kinematics
Creators: name: Penalva, N.
name: Hernández, E.
name: Nieves, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of lepton flavor universality violation (LFUV) studies, we fully derive a general tensor formalism to investigate the role that left- and right-handed neutrino new-physics (NP) terms may have in $b\to c τ\barν_τ$ transitions. We present, for several extensions of the Standard Model (SM), numerical results for the $Λ_b\toΛ_cτ\barν_τ$ semileptonic decay, which is expected to be measured with precision at the LHCb. This reaction can be a new source of experimental information that can help to confirm, or maybe rule out, LFUV presently seen in $\bar B$ meson decays. The present study analyzes observables that can help in distinguishing between different NP scenarios that otherwise provide very similar results for the branching ratios, which are our currently best hints for LFUV. Since the $τ$ lepton is very short-lived, we consider three subsequent $τ$-decay modes, two hadronic $πν_τ$ and $ρν_τ$ and one leptonic $μ\barν_μν_τ$, which have been previously studied for $\bar B\to D^{(*)}$ decays. Within the tensor formalism that we have developed in previous works, we re-obtain the expressions for the differential decay width written in terms of visible (experimentally accessible) variables of the massive particle created in the $τ$ decay. There are seven different $τ$ angular and spin asymmetries that are defined in this way and that can be extracted from experiment. Those asymmetries provide observables that can help in constraining possible SM extensions.
description: 43 latex pages, 4 figures, 2 tables, a few errata corrected and new comments added. Version accepted for publication in JHEP
Measuring the Expansion of the Universe Through Changes in the CMB Photosphere
Creators: name: Lange, S.
name: Page, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The expansion of the universe may be observed in ``realtime'' by measuring changes in the patterns of the anisotropy in the CMB. As the universe ages, the surface of decoupling--or the CMB photosphere--moves away from us and samples a different gravitational landscape. The response of the CMB to this new landscape results in a different pattern than we observe today. The largest change occurs at l~900. We show that with an array of detectors that we may envision having in a couple of decades, one can in principle measure the change in the anisotropy with two high precision measurements separated by a century.
description: 4 pages, 8 figures, submitted to ApJ
Additional file 3 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 3
A model for cooperative scientific research inspired by the ant colony algorithm
Creators: name: He, Zhuoran
name: Zhou, Tingtao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Modern scientific research has become largely a cooperative activity in the Internet age. We build a simulation model to understand the population-level creativity based on the heuristic ant colony algorithm. Each researcher has two heuristic parameters characterizing the goodness of his own judgments and his trust on literature. In a population with all kinds of researchers, we find that as the problem scale increases, the contributor distribution significantly shifts from the independent regime of relying on one's own judgments to the cooperative regime of more closely following the literature. The distribution also changes with the stage of the research problem and the computing power available. Our work provides some preliminary understanding and guidance for the dynamical process of cooperative scientific research in various disciplines.
description: 6 pages, 3 figures
Johannes Hoffmann (Hrsg.), Stereotypen, Vorurteile, Völkerbilder in Ost und West in Wissenschaft und Unterricht. Eine Bibliographie. Teil 2
Creators: name: Weger, Tobias
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 3 (2015): Transpolonität? Gesellschaftliche Eliten in den polnischen Gebieten um 1900 jenseits der Nationalgeschichte(n)
Additional file 4 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 4
Vacuum configurations for renormalizable non-commutative scalar models
Creators: name: de Goursac, A.
name: Tanasa, A.
name: Wallet, J-C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we find non-trivial vacuum states for the renormalizable non-commutative $ϕ^4$ model. An associated linear sigma model is then considered. We further investigate the corresponding spontaneous symmetry breaking.
description: 17 pages
Heinz Schneppen, Ghettokommandant in Riga. Eduard Roschmann. Fakten und Fiktionen
Creators: name: Tauber, Joachim
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2012

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 61 Nr. 1 (2012)
Lutz Raphael, Imperiale Gewalt und mobilisierte Nation. Europa 1914-1945
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2014

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 63 Nr. 2 (2014)
Optimal realization of Yang-Baxter gate on quantum computers
Creators: name: Zhang, Kun
name: Yu, Kwangmin
name: Hao, Kun
name: Korepin, Vladimir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Quantum computers provide a promising method to study the dynamics of many-body systems beyond classical simulation. On the other hand, the analytical methods developed and results obtained from the integrable systems provide deep insights on the many-body system. Quantum simulation of the integrable system not only provides a valid benchmark for quantum computers but is also the first step in studying integrable-breaking systems. The building block for the simulation of an integrable system is the Yang-Baxter gate. It is vital to know how to optimally realize the Yang-Baxter gates on quantum computers. Based on the geometric picture of the Yang-Baxter gates, we present the optimal realizations of two types of Yang-Baxter gates with a minimal number of CNOT or $R_{zz}$ gates. We also show how to systematically realize the Yang-Baxter gates via the pulse control. We test and compare the different realizations on IBM quantum computers. We find that the pulse realizations of the Yang-Baxter gates always have a higher gate fidelity compared to the optimal CNOT or $R_{zz}$ realizations. On the basis of the above optimal realizations, we demonstrate the simulation of the Yang-Baxter equation on quantum computers. Our results provide a guideline and standard for further experimental studies based on the Yang-Baxter gate.
description: Published version, 14 pages, 11 figures
Political basis for child-raising
Creators: name: Grant, Michael
Publisher: name: University of British Columbia
Year: 2010

description: A political philosopher developing a justificatory system for his society has a responsibility for providing principles which can be applied to all the necessary social arrangements within his particular society. It is difficult to imagine a society which does not include the social arrangements for child-raising among its necessary arrangements. Yet the principles proposed by various philosophers in justification of the social arrangements for our North American society are not sufficient for determining our social arrangements for child-raising. This thesis is an attempt to interpret some of those philosophical principles in such a way that they can also act as the principles for child-raising within the context of our general society. Since the various systems of principles used to justify our social arrangements differ in the way that they treat the relationship of the individual to the group, it is necessary to locate a common reference point, that of the endowment of opportunity to the child, and then proceed along the selected paths of the argument to derive a valid set of principles for child-raising. The preliminary stage is an examination of the general requirements of a system of justificatory principles for a society's institutions. The political philosophies of Robert Nozick and John Rawls are then examined to determine the limits placed on interference with the child and child-raiser for those in the Conservative and Liberal Positions. The action-guiding principles for child-raising which emerge from these two positions, when taken together, appear to be reasonably close to our commonsense notion of child-raising. However the differences between the Conservative and Liberal Positions are the cause of some of the tensions that develop in our attempts to establish policy. These differences are the source of the value conflicts which arise when we are endowing children with opportunities.
Additional file 5 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 5
On the obstruction to linearizability of 2-order ordinary differential equations
Creators: name: Yumaguzhin, Valeriy A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 53A55; 53C10; 53C15; 34A30; 34A26; 34C20; 58F35

description: In this paper, we investigate the action of pseudogroup of all point transformations on the natural bundle of equations $y'' = u^0(x,y) + u^1(x,y)y' + u^2(x,y)(y')^2 + u^3(x,y)(y')^3$. We calculate the 1-st nontrivial differential invariant of this action. It is a horizontal differential 2-form with values in some algebra, it is defined on the bundle of 2--jets of sections of the considered bundle. We prove that this form is a unique obstruction to linearizability of these equations by point transformations.
description: 14 pages; Ams-LateX 2e
Wolf Gruner, Jörg Osterloh (Hrsg.), Das „Großdeutsche Reich“ und die Juden. Nationalsozialistische Verfolgung in den „angegliederten“ Gebieten
Creators: name: Roth, Markus
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2011

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 60 Nr. 3 (2011)
A H13CN/HN13C linelist, model atmospheres and synthetic spectra for carbon stars
Creators: name: Harris, G. J.
name: Larner, F. C.
name: Tennyson, J.
name: Kaminsky, B. M.
name: Pavlenko, Ya. V.
name: Jones, H. R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A line list of vibration-rotation transitions for 13C substituted HCN is presented. The line list is constructed using known experimental levels where available, calculated levels and ab initio line intensities originally calculated for the major isotopologue. Synthetic spectra are generated and compared with observations for cool carbon star WZ Cas. It is suggested that high resolution HCN spectra recorded near 14 micron should be particularly sensitive to the 13C to 12C ratio.
description: 8 pages, 6 figs, 3 tables, to appear in MNRAS
Additional file 6 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 6
Geometric Measure of Indistinguishability for Groups of Identical Particles
Creators: name: Cassam-Chenaï, Patrick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The concept of p-orthogonality (1=< p =< n) between n-particle states is introduced. It generalizes common orthogonality, which is equivalent to n-orthogonality, and strong orthogonality between fermionic states, which is equivalent to 1-orthogonality. Within the class of non p-orthogonal states a finer measure of non p-orthogonality is provided by Araki's angles between p-internal spaces. The p-orthogonality concept is a geometric measure of indistinguishability that is independent of the representation chosen for the quantum states. It induces a new hierarchy of approximations for group function methods. The simplifications that occur in the calculation of matrix elements between p-orthogonal group functions are presented.
$2^n$-root weak, Chern, and higher-order topological insulators, and $2^n$-root topological semimetals
Creators: name: Marques, A. M.
name: Dias, R. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recently, we have introduced in [A. M. Marques et al., Phys. Rev. B 103, 235425 (2021)] the concept of $2^n$-root topology and applied it to one-dimensional systems. These models require $n$ squaring operations to their Hamiltonians, intercalated with different constant energy downshifts at each level, in order to arrive at a decoupled block corresponding to a known topological insulator (TI) that acts as the source of the topological features of the starting $2^n$-root TI ($\sqrt[2^n]{\text{TI}}$). In the process, $n$ non-topological residual models with degenerate spectra and in-gap impurity states appear, which dilute the topologically protected component of the starting edge states. Here, we generalize this method to several two-dimensional models, by finding the 4-root version of lattices hosting weak and higher-order boundary modes (both topological and non-topological) of a Chern insulator and of a topological semimetal. We further show that a starting model with a non-Hermitian region in parameter space and a complex energy spectrum can nevertheless display a purely real spectrum for all its successive squared versions, allowing for an exact mapping between certain non-Hermitian models and their Hermitian lower root-degree counterparts. A comment is made on the possible realization of these models in artificial lattices.
description: 21 pages, 14 figures
In-Field Critical Current of Type-II Superconductors Caused by Strain from Nano-scale Columnar Inclusions
Creators: name: Rodriguez, J. P.
name: Barnes, P. N.
name: Varanasi, C. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The results of a linear elasticity analysis yields that nano-rod inclusions aligned along the c axis of a thin film of YBa2Cu3O{7-delta}, such as BaZrO3 and BaSnO3, squeeze that matrix by pure shear. The sensitivity of the superconducting critical temperature in that material to the latter implies that the phase boundary separating the nano-rod inclusion from the superconductor acts as a collective pinning center for the vortex lattice that appears in external magnetic field. A dominant contribution to the in-field critical current can result. The elasticity analysis also finds that the growth of nano-rod inclusions can be weakly metastable when the inclusion is softer than the matrix.
description: 9 pages, 2 figures, published in Physical Review B, added estimate for energy cost of metastability
No evidence for the reduction of task competition and attentional adjustment during task-switching practice
Creators: name: Strobach, Tilo
name: Wendt, Mike
name: Tomat, Miriam
name: Luna-Rodriguez, Aquiles
name: Jacobsen, Thomas
Publisher: name: Elsevier
Year: 2020
Subjects: subject: Attentional adjustment
subject: Cognitive training
subject: Conflict processing
subject: Practice
subject: Task switching
subject: 150 Psychologie

description: Performance in task switching experiments is worse when the current stimulus is associated with different responses in the two tasks (i.e., incongruent condition) than when it is associated with the same response (i.e., congruent condition). This congruency effect reflects some sort of application of the irrelevant task's stimulus-response translation rules. Manipulating the recency and the proportion of congruent and incongruent trials results in a modulation of the congruency effect (i.e., Congruency Sequence Effect, CSE, and Proportion Congruency Effect, PCE, respectively), suggesting attentional adjustment of processing weights. Here, we investigated the impact of task switching practice on the congruency effect and the modulation thereof by (a) re-analyzing the data of a task switching experiment involving six consecutive sessions and (b) conducting a novel four-session experiment in which the proportions of congruent and incongruent trials were manipulated. Although practice appeared to reduce the reaction times overall and the task switch costs (i.e., slower reaction times after task switches than after task repetitions) to an asymptotic level, the congruency effect as well as its modulations remained remarkably constant. These findings thus do not provide evidence that conflict effects between tasks and attentional adjustment are affected by task switching practice.
Reproducibility in Social Sciences and Statistics: Context, Concerns, and Concrete Measures
Creators: name: Vilhuber, Lars
Publisher: name: Zenodo
Year: 2019
Subjects: reproducibility
replicability
metadata standards

description: Replicability is at the core of the scientific enterprise. In the past 30 years, recurring concerns about the extent of replicability (or lack thereof) of the research in various disciplines have surfaced, including in economics.

In this talk, I describe the context in which the current discussion in the social science is occurring: what are the definitions of replicability and reproducibility, what is failing, and to what extent. In particular, I discuss the concerns in economics: to what extent is this a problem in economics, what are the approaches that are being considered, and what are the possible broader implications of those approaches. Finally, I discuss the concrete measures that are being implemented under my guidance at the American Economic Association, and that are being discussed in the broader economics community.

The solutions to these problems will change the way research will be taught and conducted, in economics in particular, and in the social sciences more broadly. The implications affect undergraduate and graduate teaching, research infrastructure, and habits.

Présenté 2019-06-10 dans le cadre de l'ÉCOLE D'ÉTÉ SUR LES ENJEUX ÉTHIQUES ET JURIDIQUES DE LA DIFFUSION DES DONNÉES.
description: The opinions expressed in this talk are solely the authors, and do not represent the views of the U.S. Census Bureau, the American Economic Association, or any of the funding agencies.
Do unbounded bubbles ultimately become fenced inside a black hole?
Creators: name: Guzman, F. S.
name: Lehner, L.
name: Sarbach, O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the dynamical behavior of recently introduced bubbles in asymptotically flat, five-dimensional spacetimes. Using numerical methods, we find that even bubbles that initially start expanding eventually collapse to a Schwarzschild-Tangherlini black hole.
description: 16 pages, 13 figures
Structured Citation Trend Prediction Using Graph Neural Networks
Creators: name: Cummings, Daniel
name: Nassar, Marcel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Academic citation graphs represent citation relationships between publications across the full range of academic fields. Top cited papers typically reveal future trends in their corresponding domains which is of importance to both researchers and practitioners. Prior citation prediction methods often require initial citation trends to be established and do not take advantage of the recent advancements in graph neural networks (GNNs). We present GNN-based architecture that predicts the top set of papers at the time of publication. For experiments, we curate a set of academic citation graphs for a variety of conferences and show that the proposed model outperforms other classic machine learning models in terms of the F1-score.
description: Appeared in IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020. 5 pages, 5 figures
Thermal properties of SmFeAs(O1-xFx) as probe of the interplay between electrons and phonons
Creators: name: Tropeano, M.
name: Martinelli, A.
name: Palenzona, A.
name: Bellingeri, E.
name: d'Agliano, E. Galleani
name: Nguyen, T. D.
name: Affronte, M.
name: Putti, M.
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: A comparative study of thermal properties of SmFeAsO, SmFeAs(O0.93F0.07) and SmFeAs(O0.85F0.15) samples is presented. Specific heat and thermal conductivity show clear evidences of the spin density wave (SDW) ordering below TSDW 135 K in undoped SmFeAsO. At low level of F-doping, SmFeAs(O0.93F0.07), SDW ordering is suppressed and superconducting features are not yet optimally developed in both specific heat and thermal conductivity. At optimal level of F-doping SmFeAs(O0.85F0.15) anomalies related to the superconducting transition are well noticeable. By a compared analysis of doped and undoped samples we conclude that, despite F-doping modifies definitely the electronic ground state, it does not substantially alter phonon and electron parameters, like phonon modes, Sommerfeld coefficient, electro-phonon coupling. The analysis of the thermal conductivity curves provides an evaluation of SDW and superconducting energy gap, showing that phonons can suitably probe features of electronic ground state.
Lexikon der Vertreibungen. Deportation, Zwangsaussiedlung und ethnische Säuberung im Europa des 20. Jahrhunderts
Creators: name: Röger, Maren
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 2 (2010)
Reinforcement Learning for Generative AI: State of the Art, Opportunities and Open Research Challenges
Creators: name: Franceschelli, Giorgio
name: Musolesi, Mirco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Generative Artificial Intelligence (AI) is one of the most exciting developments in Computer Science of the last decade. At the same time, Reinforcement Learning (RL) has emerged as a very successful paradigm for a variety of machine learning tasks. In this survey, we discuss the state of the art, opportunities and open research questions in applying RL to generative AI. In particular, we will discuss three types of applications, namely, RL as an alternative way for generation without specified objectives; as a way for generating outputs while concurrently maximizing an objective function; and, finally, as a way of embedding desired characteristics, which cannot be easily captured by means of an objective function, into the generative process. We conclude the survey with an in-depth discussion of the opportunities and challenges in this fascinating emerging area.
description: Published in JAIR at https://www.jair.org/index.php/jair/article/view/15278
Self-discharge mitigation in a liquid metal displacement battery
Creators: name: Mushtaq, Kashif
name: Zhao, Ji
name: Weber, Norbert
name: Mendes, Adelio
name: Sadoway, Donald R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Recently, a disruptive idea was reported about the discovery of a new type of battery named Liquid Displacement Battery (LDB) comprising liquid metal electrodes and molten salt electrolyte. This cell featured a novel concept of a porous electronically conductive faradaic membrane instead of the traditional ion-selective ceramic membrane. LDBs are attractive for stationary storage applications but need mitigation against self-discharge. In the instant battery chemistry, Li|LiCl-PbCl$_2$|Pb, reducing the diffusion coefficient of lead ions can be a way forward and a solution can be the addition of PbO to the electrolyte. The latter acts as a supplementary barrier and complements the function of the faradaic membrane. The remedial actions improved the cell's coulombic efficiency from 92% to 97% without affecting the voltage efficiency. In addition, the limiting current density of a 500 mAh cell increased from 575 to 831 mA cm$^{-2}$ and the limiting power from 2.53 to 3.66 W. Finally, the effect of PbO on the impedance and polarization of the cell was also studied.
The conditions that help or hinder successful adjustment following a move : a critical incidents study
Creators: name: Broughton, Brenda
Publisher: name: University of British Columbia
Year: 2010

description: This is an exploratory study using Flanagan's (1954) Critical Incident Technique to examine what conditions facilitate or hinder a successful adjustment following a move. The sample of 24 subjects, consisted of 12 well educated, middleclass suburban couples, age 26 to 55, chosen for their experience in the area of moving. Individual interviews were tape recorded. A mean of 10.21 incidents were reported per subject. A total of 14 Basic Categories were formed. Reliability of the Basic Categories was suggested (.85). The importance of each category was suggested by the high proportion of subjects that reported in each (.25 < n < .71). These categories formed 5 Superordinate Categories. Preliminary evidence suggests 6 areas in which the spouse might affect their partner's adjustment following a move. A total of 54.88% of the incidents reported occurred within 6 weeks of the move. It is suggested that methods that facilitate successful adjustment be implemented.
On the Truncated Pareto Distribution with applications
Creators: name: Zaninetti, Lorenzo
name: Ferraro, Mario
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Pareto probability distribution is widely applied in different fields such us finance, physics, hydrology, geology and astronomy. This note deals with an application of the Pareto distribution to astrophysics and more precisely to the statistical analysis of mass of stars and of diameters of asteroids. In particular a comparison between the usual Pareto distribution and its truncated version is presented. Finally a possible physical mechanism that produces Pareto tails for the distribution of the masses of stars is suggested.
description: 10 pages 6 figures
Woodland Natures: Knowing Vegetal Nature Through Sympathy and Anthropomorphism in Thomas Hardy’s The Woodlanders
Creators: name: Harris, Tasha Chanel
Publisher: name: University of Chicago
Year: 2019
Subjects: subject: Thomas Hardy
subject: "The Woodlanders"
subject: Posthumanism
subject: Ecology
subject: FOS: Biological sciences
subject: Empathy
subject: Nature
subject: Vegetal nature
subject: Victorian Literature
subject: Anthropomorphism
subject: Trees

description: This thesis proposes that the depictions of the trees in Thomas Hardy's novel "The Woodlanders" shares resonance with current posthumanist theory through its recognition of the trees as subjects entangled in mutual relationships with the humans and also through the humans' attempts to gain knowledge of and interact with the trees.
Intersecting Psi-classes on tropical M_{0,n}
Creators: name: Kerber, Michael
name: Markwig, Hannah
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14N35, 51M20

description: We apply the tropical intersection theory developed by L. Allermann and J. Rau to compute intersection products of tropical Psi-classes on the moduli space of rational tropical curves. We show that in the case of zero-dimensional (stable) intersections, the resulting numbers agree with the intersection numbers of Psi-classes on the moduli space of n-marked rational curves computed in algebraic geometry.
description: 16 pages
Dariusz Gawin, Wielki zwrot. Ewolucja lewicy i odrodzenia idei społeczeństwa obywatelskiego
Creators: name: Brier, Robert
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 3 (2015): Transpolonität? Gesellschaftliche Eliten in den polnischen Gebieten um 1900 jenseits der Nationalgeschichte(n)
Syntactically and semantically regular languages of lambda-terms coincide through logical relations
Creators: name: Moreau, Vincent
name: Nguyên, Lê Thành Dũng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: A fundamental theme in automata theory is regular languages of words and trees, and their many equivalent definitions. Salvati has proposed a generalization to regular languages of simply typed $λ$-terms, defined using denotational semantics in finite sets.
 We provide here some evidence for its robustness. First, we give an equivalent syntactic characterization that naturally extends the seminal work of Hillebrand and Kanellakis connecting regular languages of words and syntactic $λ$-definability. Second, we show that any finitary extensional model of the simply typed $λ$-calculus, when used in Salvati's definition, recognizes exactly the same class of languages of $λ$-terms as the category of finite sets does.
 The proofs of these two results rely on logical relations and can be seen as instances of a more general construction of a categorical nature, inspired by previous categorical accounts of logical relations using the gluing construction.
description: The proofs on "finitely pointable" CCCs in versions 1 and 2 were wrong; we now make slightly weaker claims on well-pointed locally finite CCCs. New in this version: added reference [3] and official DOI (proceedings of CSL 2024)
Innovative Forms of the Hungarian Samizdat. An Analysis of Oral Practices
Creators: name: Cseh-Varga, Katalin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2016

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 65 Nr. 1 (2016): Samizdat and Alternative Ways of Communications
Search for TeV emission from the Fermi Bubbles at low Galactic latitudes with H.E.S.S. inner Galaxy survey observations
Creators: name: Moulin, E.
name: Montanari, A.
name: Malyshev, D.
name: Malyshev, Dm.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Fermi Bubbles were discovered about a decade ago in the {\it Fermi}-LAT data as a double-lobe structure extending up to 55 deg. in Galactic latitudes above and below the Galactic Center. At the moment their origin is still unknown. The H.E.S.S. collaboration is currently performing the first ever survey in TeV gamma rays of the Milky Way inner region: the Inner Galaxy Survey. This survey is intended to achieve the best sensitivity to faint and diffuse emissions in a region of several degrees around the Galactic Centre. It provides an unprecedented sensitivity to dark matter signals, new diffuse emissions, and TeV outflows from the Galactic Centre. Understanding the properties of the Fermi Bubbles at low Galactic latitudes will provide key insights into their origin. We search for TeV emission at the base of the Fermi Bubbles using low-latitude spatial templates. The first results obtained with the 2014-2020 H.E.S.S. observations will be reported.
description: 8 pages, 3 figures, Proceedings of the 37th International Cosmic Ray Conference (ICRC2021)
Monte Carlo study of multiply crosslinked semiflexible polymer networks
Creators: name: Huisman, E. M.
name: Storm, C.
name: Barkema, G. T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a method to generate realistic, three-dimensional networks of crosslinked semiflexible polymers. The free energy of these networks is obtained from the force-extension characteristics of the individual polymers and their persistent directionality through the crosslinks. A Monte Carlo scheme is employed to obtain isotropic, homogeneous networks that minimize the free energy, and for which all of the relevant parameters can be varied: the persistence length, the contour length as well as the crosslinking length may be chosen at will. We also provide an initial survey of the mechanical properties of our networks subjected to shear strains, showing them to display the expected non-linear stiffening behavior. Also, a key role for non-affinity and its relation to order in the network is uncovered.
description: 11 pages, revised figures, added extra information about the networks
Additional file 7 of Whole genome sequencing reveals the genetic diversity and structure of Leptosphaeria maculans populations from the Western Cape province of South Africa
Creators: name: Schreuder, Huibrecht Maria
name: Coetzee, Beatrix
name: van Coller, Gerhardus Johannes
name: Mostert, Diane
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 7