cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Poiesis : Material Language
Creators: name: Pecoraro, Massimo
Publisher: name: The University of British Columbia
Year: 2022

description: Can words become material? To explore the parallels between and the interpretation of architectural form in dialogue with text, this project uses an iterative / hybrid methodology that constructs material and written expressions simultaneously. The goal is to re-contextualize poetic meaning within the built environment, while questioning our subjectivity, our perception of architecture, its relationship with language and how these factors underline the intensities of space.
Symbol letters of Feynman integrals from Gram determinants
Creators: name: Jiang, Xuhang
name: Liu, Jiahao
name: Xu, Xiaofeng
name: Yang, Li Lin
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Symbol letters are crucial for analytically calculating Feynman integrals in terms of iterated integrals. We present a novel method to construct the symbol letters for a given integral family without prior knowledge of the canonical differential equations. We provide a program package implementing our algorithm, and demonstrate its effectiveness in solving non-trivial problems with multiple loops and legs. Using our method, we successfully bootstrap the canonical differential equations for a two-loop five-point family with two external masses and for a three-loop four-point family with two external masses, which were previously unknown in the literature. We anticipate that our method can be applied to a wide range of cutting-edge calculations in the future.
description: published version in PLB
An Algorithm for Obtaining Reliable Priors for Constrained-Curve Fits
Creators: name: Draper, Terrence
name: Dong, Shao-Jing
name: Horvath, Ivan
name: Lee, Frank
name: Mathur, Nilmani
name: Zhang, Jianbo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We introduce the ``Sequential Empirical Bayes Method'', an adaptive constrained-curve fitting procedure for extracting reliable priors. These are then used in standard augmented-chi-square fits on separate data. This better stabilizes fits to lattice QCD overlap-fermion data at very low quark mass where a priori values are not otherwise known. We illustrate the efficacy of the method with data from overlap fermions, on a quenched $16^3\times 28$ lattice with spatial size La=3.2 fm and pion mass as low as $\sim$ 180 MeV.
description: Lattice2003(machine), 3 pages, 3 figures
Crustomyces indecorus Hjortstam 1987
Creators: name: Gorjón, Sergio P.
name: Jesus, Maria Aparecida De
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Polyporales
Cystostereaceae
Crustomyces
Crustomyces indecorus

description: Crustomyces indecorus Hjortstam
This species is characterized by an odontioid hymenophore, clavate to cylindrical cystidia, presence of dendrohyphidia, and ellipsoid to cylindrical basidiospores, tapering toward the apiculus. The Amazon specimen agrees with the description by Hjortstam (1987). Previously only known from the type locality in Tanzania.
 Specimen examined: — BRAZIL, Amazonas, Roraima, Alto Alegre - Amajari, Maracá Ecologial Station, 27 Sep 2008, on trunk of living tree, leg. M.A. Jesus, LPM 4514.
description: Published as part of Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, pp. 38-54 in Phytotaxa 67 (1) on page 41, DOI: 10.11646/phytotaxa.67.1.3, http://zenodo.org/record/5065956
WE2: Developing Effective Data Management Plans using DMP Online
Creators: name: Donnelly, Martin
name: Jones, Sarah
Publisher: name: Zenodo
Year: 2011

description: In 2010 the US National Science Foundation (NSF) announced that it will mandate the inclusion of a data management plan with all new funding applications. The NSF is not alone in its efforts to improve accountability for data management, and we are beginning to see Research Councils and funding bodies around the world seeking evidence that adequate and appropriate provisions for data management and curation have been considered from the earliest stages of any publiclyfunded activity.The Digital Curation Centre has developed DMP Online, a Web-based data management planning tool that assists researchers in creating personalized data management plans to meet specific funders' requirements. DMP Online has three main functions: to assist researchers in the preparation of basic data management plans at the grant application stage; to help them build and maintain a more detailed DMP during the project's lifetime; and to enable customized reporting of these activities.This workshop will provide participants with: An introduction to DMP Online and related resources; The chance to work through the development of a plan drawing upon their own experience; Opportunities to share data management concerns and experiences.
Higgs as a Holographic Pseudo-Goldstone Boson
Creators: name: Contino, Roberto
name: Nomura, Yasunori
name: Pomarol, Alex
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The AdS/CFT correspondence allows to relate 4D strongly coupled theories to weakly coupled theories in 5D AdS. We use this correspondence to study a scenario in which the Higgs appears as a composite pseudo-Goldstone boson (PGB) of a strongly coupled theory. We show how a non-linearly realized global symmetry protects the Higgs mass and guarantees the absence of quadratic divergences at any loop order. The gauge and Yukawa interactions for the PGB Higgs are introduced in a simply way in the 5D AdS theory, and their one-loop contributions to the Higgs potential are calculated using perturbation theory. These contributions are finite, giving a squared-mass to the Higgs which is one-loop smaller than the mass of the first Kaluza-Klein state. We also show that if the symmetry breaking is caused by boundary conditions in the extra dimension, the PGB Higgs corresponds to the fifth component of the bulk gauge boson. To make the model fully realistic, a tree-level Higgs quartic coupling must be induced. We present a possible mechanism to generate it and discuss the conditions under which an unwanted large Higgs mass term is avoided.
description: 31 pages, 6 figures
Graphical Influence Diagnostics for Changepoint Models
Creators: name: Wilms, Ines
name: Killick, Rebecca
name: Matteson, David S.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Changepoint models enjoy a wide appeal in a variety of disciplines to model the heterogeneity of ordered data. Graphical influence diagnostics to characterize the influence of single observations on changepoint models are, however, lacking. We address this gap by developing a framework for investigating instabilities in changepoint segmentations and assessing the influence of single observations on various outputs of a changepoint analysis. We construct graphical diagnostic plots that allow practitioners to assess whether instabilities occur; how and where they occur; and to detect influential individual observations triggering instability. We analyze well-log data to illustrate how such influence diagnostic plots can be used in practice to reveal features of the data that may otherwise remain hidden. Supplementary Materials for this article are available online.
Spirit of Gwo Laan : Culture, Resiliency, and Identity of Hong Kong Public Wholesale Market
Creators: name: Szeto, Jeri Tsz Wai
Publisher: name: The University of British Columbia
Year: 2022

description: Messy and mysterious. Gwo Laan, also known as the Yau Ma Tei Fruit Market, comes to life when darkness falls. The sound of rumbling fills the night air, as workers drag pallets stacked with boxes of fruit across the road in every direction. For the people of Hong Kong, Gwo Laan is about defining identity, preserving memories, and cultivating a sense of belonging. Under the rapid assault of urbanization, Gwo Laan is facing the challenge of relocation and transformation that risk eradicating its authenticity and intangible cultural capital. In February 2022, the Urban Renewal Authority (URA) announced a redevelopment plan for the Yau Ma Tei neighbourhood, including a proposal to relocate the wholesale operation from the fruit market and to transform the market into a tourist hub. Yet in this proposal, the voices of the everyday participants are almost nonexistent. To bring these voices back, Spirit of Gwo Laan will explore the shared values of Gwo Laan through everyday narratives. It will inform an alternative future: one where we are not only keeping and passing on what we value but also harnessing and enhancing heritage to support a more desirable model for the community.
Automatic differentiation for solid mechanics
Creators: name: Vigliotti, Andrea
name: Auricchio, Ferdinando
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Automatic differentiation (AD) is an ensemble of techniques that allow to evaluate accurate numerical derivatives of a mathematical function expressed in a computer programming language. In this paper we use AD for stating and solving solid mechanics problems. Given a finite element discretization of the domain, we evaluate the free energy of the solid as the integral of its strain energy density, and we make use of AD for directly obtaining the residual force vector and the tangent stiffness matrix of the problem, as the gradient and the Hessian of the free energy respectively. The result is a remarkable simplification in the statement and the solution of complex problems involving non trivial constraints systems and both geometrical and material non linearities. Together with the continuum mechanics theoretical basis, and with a description of the specific AD technique adopted, the paper illustrates the solution of a number of solid mechanics problems, with the aim of presenting a convenient numerical implementation approach, made easily available by recent programming languages, to the solid mechanics community.
description: 30 pages, 9 figures, 2 appendices, accepted on Archives of Computational Methods in Engineering
WD2: Introduction to R
Creators: name: Womack, Ryan
name: Dekker, Harrison
Publisher: name: Zenodo
Year: 2011

description: R, the open source statistical environment,is growing rapidly in use and increasing in visibility. R is one of 7 Computing Languages on the Rise, has been profiled in the New York Times, and will be featured in an upcoming issue of Forbes. This program will begin with an introduction to R, its features, and the characteristics that have led to its popularity in the data world. Hands on work will introduce R programming, data manipulation capabilities, basic statistical operations, and graphing functionality. Add-on packages, including graphical interfaces and data mining tools, will be illustrated. Finally, the workshop will discuss how R is being used with "big data", interacting with databases and large data feeds to perform analysis.
Dendrodontia bicolor Hjortstam & Ryvarden
Creators: name: Gorjón, Sergio P.
name: Jesus, Maria Aparecida De
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Corticiales
Corticiaceae
Dendrodontia
Dendrodontia bicolor

description: Dendrodontia bicolor (P.H.B. Talbot) Hjortstam & Ryvarden
The species is known in South America from Argentina and South Brazil (Hjortstam & Ryvarden 2007a).
 Specimen examined: — BRAZIL, Amazonas, Manaus, IFAM Campus (Instituto Federal de Educação, Ciência e Tecnologia do Amazonas), 4 Jan 2011, on fallen trunk, leg. M.A. Jesus, LPM 7414.
description: Published as part of Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, pp. 38-54 in Phytotaxa 67 (1) on page 41, DOI: 10.11646/phytotaxa.67.1.3, http://zenodo.org/record/5065956
Gravitational Waves in String theory in Anti-de Sitter Background
Creators: name: Kumar, Alok
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Inspired by the studies of gravitational waves in anti-de Sitter universe, in general relativity, in this paper we investigate the possibility of similar solutions in IIB string theory on $AdS_3 x S^3 x R^4$. We give a general form for such solutions in this background and present several explicit examples, by directly solving the field equations, as well as the ones obtained by taking a scaling limit on D1-D5 brane systems in a pp-wave background. The form of the metric in our solutions corresponds to a gravitational wave in $AdS_3$. We show the supersymmetric nature of these solutions and discuss the possibility of their generalizations to other anti-de Sitter backgrounds, including the ones in four dimensions.
description: 11 pages (latex), a note has been added
Kinematic unrest of low mass galaxy groups
Creators: name: Gozaliasl, G.
name: Finoguenov, A.
name: Khosroshahi, H. G.
name: Laigle, C.
name: Kirkpatrick, C. C.
name: Kiiveri, K.
name: Devriendt, J.
name: Dubois, Y.
name: Ahoranta, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In an effort to better understand the formation of galaxy groups, we examine the kinematics of a large sample of spectroscopically confirmed X-ray galaxy groups in the Cosmic Evolution Survey (COSMOS) with a high sampling of galaxy group members up to $z=1$. We compare our results with predictions from the cosmological hydrodynamical simulation of {\sc Horizon-AGN}. Using a phase-space analysis of dynamics of groups with halo masses of $M_{\mathrm{200c}}\sim 10^{12.6}-10^{14.50}M_\odot$, we show that the brightest group galaxies (BGG) in low mass galaxy groups ($M_{\mathrm{200c}}<2 \times 10^{13} M_\odot$) have larger proper motions relative to the group velocity dispersion than high mass groups. The dispersion in the ratio of the BGG proper velocity to the velocity dispersion of the group, $σ_{\mathrm{BGG}}/σ_{group}$, is on average $1.48 \pm 0.13$ for low mass groups and $1.01 \pm 0.09$ for high mass groups. A comparative analysis of the {\sc Horizon-AGN} simulation reveals a similar increase in the spread of peculiar velocities of BGGs with decreasing group mass, though consistency in the amplitude, shape, and mode of the BGG peculiar velocity distribution is only achieved for high mass groups. The groups hosting a BGG with a large peculiar velocity are more likely to be offset from the $L_x-σ_{v}$ relation; this is probably because the peculiar motion of the BGG is influenced by the accretion of new members.
description: 9 pages, 5 figures
Berezinskii-Kosterlitz-Thouless Transition in Two-Dimensional Dipolar Stripes
Creators: name: Bombin, Raul
name: Mazzanti, Ferran
name: Boronat, Jordi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A two-dimensional quantum system of dipoles, with a polarization angle not perpendicular to the plane, shows a transition from a gas to a stripe phase. We have studied the thermal properties of these two phases using the path integral Monte Carlo (PIMC) method. By simulating the thermal density matrix, PIMC provides exact results for magnitudes of interest such as the superfluid fraction and the one-body density matrix. As it is well known, in two dimensions the superfluid-to-normal phase transition follows the Berezinskii-Kosterlitz-Thouless (BKT) scenario. Our results show that both the anisotropic gas and the stripe phases follow the BKT scaling laws. At fixed density and increasing the tilting angle, the transition temperature decreases in going from the gas to the stripe phase. Superfluidity in the perpendicular direction to the stripes is rather small close to the critical temperature but it becomes larger at lower temperatures, mainly close to the transition to the gas. Our results are in qualitative agreement with the supersolidity observed recently in a quasi-one-dimensional array of dipolar droplets.
Security bounds in Quantum Cryptography using d-level systems
Creators: name: Acin, Antonio
name: Gisin, Nicolas
name: Scarani, Valerio
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the security of quantum cryptography schemes for $d$-level systems using 2 or $d+1$ maximally conjugated bases, under individual eavesdropping attacks based on cloning machines and measurement after the basis reconciliation. We consider classical advantage distillation protocols, that allow to extract a key even in situations where the mutual information between the honest parties is smaller than the eavesdropper's information. In this scenario, advantage distillation protocols are shown to be as powerful as quantum distillation: key distillation is possible using classical techniques if and only if the corresponding state in the entanglement based protocol is distillable.
description: 18 pages, 1 figure. Published version
WA1: Free Stars in the Data Universe - AKA – Open Sources of Data
Creators: name: Fry, Jane
name: Watkins, Wendy
Publisher: name: Zenodo
Year: 2011

description: All Canadian universities (and some colleges) are members of the Data Liberation Initiative (DLI) of Statistics Canada. This rich resource answers many of the data questions from our clients – but not all of them! This workshop will show you other stars in the data universe. And keeping in mind the budget restrictions under which many of us operate, we will be concentrating on the open data sources, that is, the free data resources, that are out there. We will be examining open data sources from various countries, with a focus on Canada. Some of the areas we will look at are: social surveys; election surveys; socio-economic country level data; public opinion polls; geographic and environmental information; and student financial surveys. The workshop will be part presentation and part hands-on so the participants will be able to examine these data stars themselves. Another component will be the participants showing us any open data sources that they want to share.
The upper kHz QPO: a gravitationally lensed vertical oscillation
Creators: name: Bursa, M.
name: Abramowicz, M. A.
name: Karas, V.
name: Kluzniak, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that a luminous torus in the Schwarzschild metric oscillating along its own axis gives rise to a periodically varying flux of radiation, even though the source of radiation is steady and perfectly axisymmetric. This implies that the simplest oscillation mode in an accretion flow, axisymmetric up-and-down motion at the meridional epicyclic frequency, may be directly observable when it occurs in the inner parts of accretion flow around neutron stars and black holes. The high-frequency modulations of the X-ray flux observed in low-mass X-ray binaries at two frequencies (twin kHz QPOs) could then be a signature of strong gravity both because radial and meridional oscillations have different frequencies in non-Newtonian gravity, and because strong gravitational deflection of light rays causes the flux of radiation to be modulated at the higher frequency.
description: 8 p., 4 figs
Generalized Linear Mixed Models with Crossed Effects and Unit-specific Survey Weights
Creators: name: Burgard, Jan Pablo
name: Dörr, Patricia
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Mixed models are frequently used in social and economic analysis. Typically, the analysed data is gathered through a survey sample from the population of interest. The underlying survey design may be non-ignorable, leading to possible bias in the regression parameters if not accounted for. To circumvent this problem, survey weights should be included in the estimation process. We propose a survey weighted generalized linear mixed model allowing for unit-specific survey weights and a flexible random effects structure. An estimation procedure is proposed and evaluated in two simulation studies under different scenarios. The first simulation study strongly encourages the use of survey weighted generalized linear mixed models if the survey design is non-ignorable. The second one replicates a previous simulation study in order to study the competitivity of the proposed method with established approaches and software. Further, the proposed method is used to re-estimate a regression on reading proficiency using US PISA data from 2000.
Dendrothele andina Nakasone 2006
Creators: name: Gorjón, Sergio P.
name: Jesus, Maria Aparecida De
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Corticiales
Corticiaceae
Dendrothele
Dendrothele andina

description: Dendrothele andina (Pat.) Nakasone
Basidiome resupinate, hymenophore smooth, white to pale cream, with sterile hyphal pegs about 80–100 µm long and 12–30 µm in diam., margin abrupt. Hyphal system monomitic, hyphae with clamps. Dendrohyphidia present among basidia and forming the hyphal pegs. Cystidia absent. Basidia at first globose, then suburniform, 15–25 × 7–9 µm, with two stout sterigmata, basally clamped. Basidiospores ellipsoid, 10–13 × 8–9 µm, smooth, with thin or distinct walls but not thick-walled, IKI-, with some guttules (Fig. 2).
The species was previously known only from the type locality in Ecuador (Nakasone 2006). It is characterized by the presence of hyphal pegs, hyphae with clamps, and bisterigmate basidia.
 Specimen examined: — BRAZIL, Amazonas, Manaus, IFAM Campus (Instituto Federal de Educação, Ciência e Tecnologia do Amazonas), 5 May 2012, on bark of living hardwood, leg. S.P. Gorjón, SPG 3483.
description: Published as part of Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, pp. 38-54 in Phytotaxa 67 (1) on page 41, DOI: 10.11646/phytotaxa.67.1.3, http://zenodo.org/record/5065956
New extraction of alpha_s(MZ) from proton DIS data
Creators: name: Simula, S.
name: Osipenko, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An exploratory study for a new determination of the strong coupling constant alpha_s(MZ) from existing world data on the proton structure function F2p in the Q**2-range from ~ 5 to ~ 120 (GeV/c)**2 is presented. The main features of our approach are: 1) the use of low-order Nachtmann moments evaluated with a direct contribution from data larger than 70% of the total; 2) the inclusion of high-order perturbative effects through the soft gluon resummation technique; 3) a direct control over higher-twist effects; and 4) the independence from any specific choice of the x-shape of the input parton distributions. At next-to-leading order we get alpha_s(MZ) = 0.1209 +/- 0.0010 (stat.) +/- 0.0015 (syst.) with a significant dependence upon the order of the moment used. Including soft gluon effects we obtain alpha_s(MZ) = 0.1188 +/- 0.0010 (stat.) +/- 0.0014 (syst.) with a remarkable better stability against the order of the moment. Our findings are compared with recent DIS determinations of alpha_s(MZ) and directions for future improvements are discussed.
description: revised version to appear in NPB: addition of resummation of anomalous dimensions; negligible changes in the results; no change in the conclusions
WC2: Prepare and Publish Multilingual Metadata and Aggregate Data in Nesstar. Embed Live Data into Your Website.
Creators: name: Risnes, Ørnulf
Publisher: name: Zenodo
Year: 2011

description: A new version of Nesstar, Nesstar 4.0, with a lot of new functionality has recently been released. The metadata editor and publishing tool Nesstar Publisher is now also made available as freeware. The new version includes, among other things, support for multilingual metadata, powerful support for aggregate data, subscriptions/notifications, cell notes/missing data symbols, and embedding of live data into web pages. This workshop will be a hands-on one, and participants will learn how to use Nesstar to: Prepare and publish survey data with multilingual metadata Produce, prepare and publish aggregate data (cubes) Notify subscribing users about changes in the published material Add thematic mapping capabilities to microdata and aggregate data sets Embed tables, analyses, charts and thematic maps into ordinary web-pages.
Dynamic length scales in athermal, shear-driven, jamming of frictionless disks in two dimensions
Creators: name: Olsson, Peter
name: Teitel, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We carry our numerical simulations of athermally sheared, bidisperse, frictionless disks in two dimensions. From an appropriately defined velocity correlation function, we determine that there are two diverging length scales, $ξ$ and $\ell$, as the jamming transition is approached. We analyze our results using a critical scaling ansatz for the correlation function, and argue that the more divergent length $\ell$ is a consequence of a dangerous irrelevant scaling variable, and that it is $ξ$ which is the correlation length that determines the divergence of the system viscosity as jamming is approached from below in the liquid phase. We find that $ξ\sim (ϕ_J-ϕ)^{-ν}$ diverges with the critical exponent $ν=1$. We provide evidence that $ξ$ measures the length scale of fluctuations in the rotation of the particle velocity field, while $\ell$ measures the length scale of fluctuations in the divergence of the velocity field.
description: 12 pages, 14 figures; updated to published version
Evidence for multiband superconductivity in the heavy fermion compound UNi2Al3
Creators: name: Jourdan, M.
name: Zakharov, A.
name: Foerster, M.
name: Adrian, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Epitaxial thin films of the heavy fermion superconductor UNi2Al3 with Tc{max}=0.98K were investigated. The transition temperature Tc depends on the current direction which can be related to superconducting gaps opening at different temperatures. Also the influence of the magnetic ordering at TN=5K on R(T) is strongly anisotropic indicating different coupling between the magnetic moments and itinerant charge carriers on the multi-sheeted Fermi surface. The upper critical field Hc2(T) suggests an unconventional spin-singlet superconducting state.
description: 4 pages, 6 figures revised version: inset of fig. 2 changed, fig. 3 added accepted for pub. in Phys. Rev. Lett. (estimated 9/04)
Shielding effects in fusion reactions of proton-halo nucleus
Creators: name: He, Xue-ying
name: Dong, Qin
name: Ou, Li
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: To explain the experimental facts that the fusion cross sections of proton-halo nucleus on heavy target nucleus is not enhanced as expected, the shielding supposition has been proposed. Namely, the proton-halo nucleus is polarized with the valence proton being shielded by the core. In this paper, within the frame of the Improved Quantum Molecular Dynamics model, the fusion reactions by $^{17}$F on $^{208}$Pb around Coulomb barrier have been simulated. The existence of shielding effect is verified by microscopic dynamics analysis and its influence on the effective interaction potential is also investigated.
description: 13 pages, 7 figures, to be published in Chinese Physics C
Quantum error rejection code with spontaneous parametric conversion
Creators: name: Wang, Xiang-bin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a linear optics scheme with SPDC process to test the fault tolerance property of quantum error correction code. To transmit an unknown qubit robustly through the noisy channel, one may first encode it into a certain quantum error correction code and then transmit it. The remote party decodes it and stores it. Sending a qubit in such a way can significantly reduces the error rate compared with directly sending the qubit itself. Here we show how to realize such a scheme by linear optics.
description: To appear in Phys. Rev. A. 18 pages, 2 figure, minor erros corrected and more explanations added to increase the readability
Dendrothele incrustans P. A. Lemke
Creators: name: Gorjón, Sergio P.
name: Jesus, Maria Aparecida De
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Corticiales
Corticiaceae
Dendrothele
Dendrothele incrustans

description: Dendrothele incrustans (P.A. Lemke) P.A. Lemke
The species is widespread in North America and it was previously known in South America from Argentina (Greslebin & Rajchenberg 1998).
 Specimens examined: — BRAZIL, Amazonas, Manaus city (in several streets), 4 Apr 2012, on bark of living tree, leg. S.P. Gorjón, SPG 3456, SPG 3478. Manaus, Campus do IFAM (Instituto Federal de Educação, Ciência e Tecnologia do Amazonas), 5 May 2012, on bark of living hardwood, leg. S.P. Gorjón, SPG 3484, 3490.
description: Published as part of Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, pp. 38-54 in Phytotaxa 67 (1) on page 41, DOI: 10.11646/phytotaxa.67.1.3, http://zenodo.org/record/5065956
Non-analyticities in three-dimensional gauge theories
Creators: name: Asorey, M.
name: Garcia-Alvarez, D.
name: Lopez, J. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum fluctuations generate in three-dimensional gauge theories not only radiative corrections to the Chern-Simons coupling but also non-analytic terms in the effective action. We review the role of those terms in gauge theories with massless fermions and Chern-Simons theories. The explicit form of non-analytic terms turns out to be dependent on the regularization scheme and in consequence the very existence of phenomena like parity and framing anomalies becomes regularization dependent. In particular we find regularization regimes where both anomalies are absent. Due to the presence of non-analytic terms the effective action becomes not only discontinuous but also singular for some background gauge fields which include sphalerons. The appearence of this type of singularities is linked to the existence of nodal configurations in physical states and tunneling suppression at some classical field configurations. In the topological field theory the number of physical states may also become regularization dependent. Another consequence of the peculiar behaviour of three-dimensional theories under parity odd regularizations is the existence of a simple mechanism of generation of a mass gap in pure Yang-Mills theory by a suitable choice of regularization scheme. The generic value of this mass does agree with the values obtained in Hamiltonian and numerical analysis. Finally, the existence of different regularization regimes unveils the difficulties of establishing a Zamolodchikov c-theorem for three-dimensional field theories in terms of the induced gravitational Chern-Simons couplings.
description: 21 pages; Contribution to Ian Kogan Memorial Collection, ``From Fields to Strings: Circumnavigating Theoretical Physics''
Rubmacula lvchunensis Cheng, Zhang & Xing, 2025, sp. nov.
Creators: name: Cheng, Mengsha
name: Zhang, Lan
name: Xing, Jichun
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Rubmacula
Rubmacula lvchunensis

description: Rubmacula lvchunensis sp. nov.
Figs.1–17
Description. Vertex with one reddish transverse band in the mid-domain (Figs. 1, 4). Pronotum with one red transverse arcuate band (Fig. 4). Anterior margin of face with one thin black-brown transverse band (Fig. 3). Forewing with one long red stripe on clavus and two short red stripes on corium (Figs. 1, 2).
External features as in generic description.
Male genitalia: Male pygofer side length about 2 times height (Fig. 5). Subgenital plate with 12 long setae along lateral margins (Fig. 7). Aedeagus with basal processes parallel-sided in basal half, then abruptly narrowed and attenuate distally; aedeagal shaft tubular, sinuate, slender in lateral view, with pair of spines arising apically from expanded distal section; gonopore apical (Figs. 8–10). Connective with arms nearly equal to length of stem (Figs. 8, 9). Style relatively narrow and short, apical process acute, curved laterad (Fig. 11).
Female genitalia. Female with seventh sternite basally transversely rectangular, its posterior margin roundly produced (Fig. 13). First valvulae of ovipositor with dorsal sculpture strigate (Figs. 14, 15). Second valvulae more curved than the first, denticulate area confined to distal 1/3, denticles prominent, gradually becoming smaller distally, apex pointed (Figs. 16, 17).
Measurement. Length (including tegmen): ♂, 5.60–5.62mm; ♀, 5.65 mm.
Type material. Holotype ♂, China: Yunnan Prov, Lvchun County, Huanglianshan, 14 August 2014, coll. Zhengxiang Zhou (GUGC); paratypes, 1♂ 1♀, same data as holotype.
Etymology. The species name is derived from the type locality Lvchun.
description: Published as part of Cheng, Mengsha, Zhang, Lan & Xing, Jichun, 2025, Rubmacula, a new leafhopper genus from China (Hemiptera: Cicadellidae: Deltocephalinae), pp. 442-446 in Zootaxa 5584 (3) on page 446, DOI: 10.11646/zootaxa.5584.3.10, http://zenodo.org/record/14853297
Unambiguous fluctuation decomposition of the self-energy: pseudogap physics beyond spin fluctuations
Creators: name: Yu, Yang
name: Iskakov, Sergei
name: Gull, Emanuel
name: Held, Karsten
name: Krien, Friedrich
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Correlated electron systems may give rise to multiple effective interactions whose combined impact on quasiparticle properties can be difficult to disentangle. We introduce an unambiguous decomposition of the electronic self-energy which allows us to quantify the contributions of various effective interactions simultaneously. We use this tool to revisit the hole-doped Hubbard model within the dynamical cluster approximation, where commonly spin fluctuations are considered to be the origin of the pseudogap. While our fluctuation decomposition confirms that spin fluctuations indeed suppress antinodal electronic spectral weight, we show that they alone can not capture the pseudogap self-energy quantitatively. Nonlocal multi-boson Feynman diagrams yield substantial contributions and are needed for a quantitative description of the pseudogap.
description: 5 pages, 4 figures
WA2: Basic Principles of Survey Design
Creators: name: Lindsay, Thomas
name: Sell, Andrew
name: Edwards, Michelle
Publisher: name: Zenodo
Year: 2011

description: What makes a good survey? This interactive workshop will explore the basic tenets of survey design for an audience of data professionals who are not familiar with survey design principles. In the course of the workshop, participants will work with each other and with the leaders to design a simple feedback instrument from beginning to end. Though the primary focus of the workshop will be on instrument design, the group will start by addressing the research questions that drive instrument creation and will work first to formulate a cogent set of research objectives and analytical goals to reach those objectives. With these objectives and goals established, participants will create a focused questionnaire designed to meet them. Using principles largely based on the theoretical work of Dillman and Krosnick, the leaders will guide participants through the various question types and answer methods to explain when and why survey designers use various question types and structures. Working collaboratively in small groups and as a large group, we will start with larger issues of bias, fatigue, and order effects, and will work in to narrower specific issues such as likert scale polarity and how to word scale items as we create a basic survey instrument. Finally, we will briefly discuss issues of usability testing, recruitment, and analysis.
Van der Waals interactions across stratified media
Creators: name: Podgornik, R.
name: Parsegian, V. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Working at the Lifshitz level, we investigate the van der Waals interactions across a series of layers with a periodic motif. We derive the complete form of the van der Waals interaction as an explicit function of the number of periodic layers. We then compare our result with an approximation based on an anisotropic-continuum representation of the stratified medium. Satisfactory agreement between discrete-layer and continuum models is reached only for thicknesses of ten or more layers.
description: 9 pages and 4 figures
"Branes" in lattice SU(2) gluodynamics
Creators: name: Zakharov, V. I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review lattice evidence for existence of thin vortices in the vacuum state of SU(2) gluodynamics. On the average, the non-Abelian action density per unit area is ultraviolet divergent as a^{-2} where a is the lattice spacing. At small scales, the surface looks very crumpled so that the corresponding entropy factor appears also ultraviolet divergent. The total area, however, scales in physical units. The surface is populated by monopoles which represent a tachyonic mode. The smallest value of $a$ tested is about (3 GeV)^{-1}.
description: Talk given at 2002 International Workshop on Strong Coupling Gauge Theories and Effective Theories (SCGT 02) Nagoya Japan 10-13 Dec 2002
Photoexcited organic molecules $en~route$ to highly efficient autoionization
Creators: name: Vempati, Sesha
name: Bogner, Lea
name: Richter, Clemens
name: Deinert, Jan-Christoph
name: Foglia, Laura
name: Gierster, Lukas
name: Stähler, Julia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The conversion of optical and electrical energy in novel materials is key to modern optoelectronic and light-harvesting applications. Here, we investigate the equilibration dynamics of photoexcited 2,7-bis(biphenyl-4-yl)-2,7-ditertbutyl-9,9-spirobiuorene (SP6) molecules adsorbed on ZnO(10-10) using femtosecond time-resolved two-photon photoelectron (2PPE) and optical spectroscopy. We find that, after initial ultrafast relaxation on fs and ps timescales, an optically dark state is populated, likely the SP6 triplet (T) state, that undergoes Dexter-type energy transfer ($r_{\mathrm{Dex}} = 1.3~\mathrm{nm}$) and exhibits a long decay time of 0.1 s. Because of this long lifetime a photostationary state with average T-T distances below 2 nm is established at excitation densities in the $10^{20}~\mathrm{cm}^{-2}~\mathrm{s}^{-1}$ range. This large density enables decay by T-T annihilation (TTA) mediating autoionization despite an extremely low TTA rate of $k_{\mathrm{TTA}} = 4.5~10^{-26}~\mathrm{m}^3~\mathrm{s}^{-1}$. The large external quantum efficiency of the autoionization process (up to 15 %) and photocurrent densities in the \mathrm{mA}~\mathrm{cm}^{-2}$ range offer great potential for light-harvesting applications.
WC1: Sharing Data with DDI 3 and Colectica
Creators: name: Iverson, Jeremy
name: Smith, Dan
Publisher: name: Zenodo
Year: 2011

description: Colectica is a platform for documenting and sharing data using open standards such as DDI 3. This workshop covers the following topics: Introduction to DDI 3-based data sharing; Hands on tutorial Document concepts and general study design; Design and document surveys; Share questions with question banks; Create and document datasets; Share variables with variable banks; Ingest existing datasets, variables, and questions and Publish data documentation on the Web.
STUDYING THE PROPERTIES OF CASSITERITE-BASED AND SILICON OPTICAL LAYER PHOTOCELLS
Creators: name: Eraliev Abdukhalil Jaloldin ugli Physics teacher, Academic lyceum  of Andijan state machine building institute
Publisher: name: Zenodo
Year: 2025

description: The article describes the methods of studying the properties of cassiterite-based and silicon optical layer photocells.

Key words: cassiterite, photocell, optical layer, photogeneration, silicon, heterojunction, homojunction, light absorption coefficient, light reflection coefficient.
Dendrothele ornata Gorjon 2012, sp. nov.
Creators: name: Gorjón, Sergio P.
name: Jesus, Maria Aparecida De
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Corticiales
Corticiaceae
Dendrothele
Dendrothele ornata

description: Dendrothele ornata Gorjón sp. nov.
 Species ab aliis congeneribus affinis sed differt basidiis ornatis et hyphidia cum lobis rotundatis et crystallis filiformibus conglomeratis.
 Etymology: — ornatus (Latin), referring to the crystal ornamentations on basidia and hyphidia.
 Type: — BRAZIL. Manaus: INPA Campus, Bosque da Ciência, 2 Apr 2012, on bark of living Clitoria racemosa Benth. (Fabaceae), leg. S. P. Gorjón, SPG 3454 (holotypus).
 MycoBank: MB 800944
Basidiome resupinate, whitish, hymenial surface smooth, margin abrupt. Hyphal system monomitic, hyphae with clamps. Hyphidia filiform or tortuous, variable in length, about 2–3 µm in diam., with round irregular protuberances, densely encrusted with short acicular crystals. Cystidia absent. Basidia at first ovoid, with the apical part characteristically encrusted, then becoming suburniform and distinctly stalked, 30–40 µm long, basal part ca. 9–10 µm, apical part 7–8 µm, with 4 sterigmata, encrustations remains in the middle part, with a basal clamp, cyanophilous. Basidiospores ellipsoid, 9–12 × 7–10 µm, smooth, thick-walled, IKI-, and acyanophilous (Figs. 4, 18).
 The species is characterized above all by the young basidia apically encrusted with crystals that remain in the middle part of the mature basidium and by the encrusted hyphidia with protuberances. Although a variable encrustation is present to some degree in hyphidia and dendrohyphae in other Dendrothele species, the mentioned features are unique in the genus.
 Additional specimen examined: — BRAZIL. Manaus: INPA Campus, Bosque da Ciência, 2 Apr 2012, on bark of living C. racemosa, leg. S. P. Gorjón, SPG 3455.
description: Published as part of Gorjón, Sergio P. & Jesus, Maria Aparecida De, 2012, Some new species and new records of corticioid fungi (Basidiomycota) from the Brazilian Amazon, pp. 38-54 in Phytotaxa 67 (1) on page 42, DOI: 10.11646/phytotaxa.67.1.3, http://zenodo.org/record/5065956
Simulating extremal temporal correlations
Creators: name: Spee, Cornelia
name: Budroni, Costantino
name: Gühne, Otfried
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The correlations arising from sequential measurements on a single quantum system form a polytope. This is defined by the arrow-of-time (AoT) constraints, meaning that future choices of measurement settings cannot influence past outcomes. We discuss the resources needed to simulate the extreme points of the AoT polytope, where resources are quantified in terms of the minimal dimension, or "internal memory" of the physical system. First, we analyze the equivalence classes of the extreme points under symmetries. Second, we characterize the minimal dimension necessary to obtain a given extreme point of the AoT polytope, including a lower scaling bound in the asymptotic limit of long sequences. Finally, we present a general method to derive dimension-sensitive temporal inequalities for longer sequences, based on inequalities for shorter ones, and investigate their robustness to imperfections.
description: 20 pages (including appendix), 8 figures
A DDI resource package for the International Standard for Classification of Education (ISCED)
Creators: name: Wackerow, Joachim
name: Orten, Hilde
Publisher: name: Zenodo
Year: 2012

description: The International Standard for Classification of Education (ISCED) is at the heart of national and international statistical agencies' reporting on education. Over the last years, ISCED is also increasingly used by official and non-official survey programmes in the measurement of educational attainment. This even if ISCED 1997, the current version of the standard up to recently, is quite complex and does not contain a classification of educational attainment. In November 2011, UNESCO launched a new ISCED version. ISCED 2011 has a numeric coding framework, separate classifications for educational programmes and educational attainment, and more details at the level of tertiary education. Conceptual clarifications compared to the previous version are also made, and in sum ISCED has become more user-friendly. It is thus expected that its use will increase in the coming years. The DDI Lifecycle has a storing module called a resource package, that structures materials for publication that are intended for reuse by multiple studies, projects or user communities. This presentation focuses on how ISCED 2011 metadata components usefully can be structured in a DDI resource package, for the benefit of reuse by reference by national and international statistical agencies, as well as official and non-official survey programmes.