cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Lauren Tozzi - Seattle Labor Chorus Oral History Project - Oral History Transcript
Creators: name: Labor Archives of Washington
Publisher: name: Labor Archives of Washington
Year: 2015

description: Oral History interview with Lauren Tozzi of the Seattle Labor Chorus. Completed on November 17, 2015. This interview is part of the Seattle Labor Chorus Oral History Project by the Labor Archives of Washington, University of Washington Libraries. Laborarchives.org

This item contains two parts: oral history audio file and full text transcription (.pdf).
Deep Collaborative Multi-Modal Learning for Unsupervised Kinship Estimation
Creators: name: Dong, Guan-Nan
name: Pun, Chi-Man
name: Zhang, Zheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Kinship verification is a long-standing research challenge in computer vision. The visual differences presented to the face have a significant effect on the recognition capabilities of the kinship systems. We argue that aggregating multiple visual knowledge can better describe the characteristics of the subject for precise kinship identification. Typically, the age-invariant features can represent more natural facial details. Such age-related transformations are essential for face recognition due to the biological effects of aging. However, the existing methods mainly focus on employing the single-view image features for kinship identification, while more meaningful visual properties such as race and age are directly ignored in the feature learning step. To this end, we propose a novel deep collaborative multi-modal learning (DCML) to integrate the underlying information presented in facial properties in an adaptive manner to strengthen the facial details for effective unsupervised kinship verification. Specifically, we construct a well-designed adaptive feature fusion mechanism, which can jointly leverage the complementary properties from different visual perspectives to produce composite features and draw greater attention to the most informative components of spatial feature maps. Particularly, an adaptive weighting strategy is developed based on a novel attention mechanism, which can enhance the dependencies between different properties by decreasing the information redundancy in channels in a self-adaptive manner. To validate the effectiveness of the proposed method, extensive experimental evaluations conducted on four widely-used datasets show that our DCML method is always superior to some state-of-the-art kinship verification methods.
Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Are There Cosmic Microwave Background Anomalies?
Creators: name: Bennett, C. L.
name: Hill, R. S.
name: Hinshaw, G.
name: Larson, D.
name: Smith, K. M.
name: Dunkley, J.
name: Gold, B.
name: Halpern, M.
name: Jarosik, N.
name: Kogut, A.
name: Komatsu, E.
name: Limon, M.
name: Meyer, S. S.
name: Nolta, M. R.
name: Odegard, N.
name: Page, L.
name: Spergel, D. N.
name: Tucker, G. S.
name: Weiland, J. L.
name: Wollack, E.
name: Wright, E. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) A simple six-parameter LCDM model provides a successful fit to WMAP data, both when the data are analyzed alone and in combination with other cosmological data. Even so, it is appropriate to search for any hints of deviations from the now standard model of cosmology, which includes inflation, dark energy, dark matter, baryons, and neutrinos. The cosmological community has subjected the WMAP data to extensive and varied analyses. While there is widespread agreement as to the overall success of the six-parameter LCDM model, various "anomalies" have been reported relative to that model. In this paper we examine potential anomalies and present analyses and assessments of their significance. In most cases we find that claimed anomalies depend on posterior selection of some aspect or subset of the data. Compared with sky simulations based on the best fit model, one can select for low probability features of the WMAP data. Low probability features are expected, but it is not usually straightforward to determine whether any particular low probability feature is the result of the a posteriori selection or of non-standard cosmology. We examine in detail the properties of the power spectrum with respect to the LCDM model. We examine several potential or previously claimed anomalies in the sky maps and power spectra, including cold spots, low quadrupole power, quadropole-octupole alignment, hemispherical or dipole power asymmetry, and quadrupole power asymmetry. We conclude that there is no compelling evidence for deviations from the LCDM model, which is generally an acceptable statistical fit to WMAP and other cosmological data.
description: 19 pages, 17 figures, also available with higher-res figures on http://lambda.gsfc.nasa.gov; accepted by ApJS; (v2) text as accepted
Astiphromma splenium
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Astiphromma
Astiphromma splenium

description: Astiphromma splenium (CURTIS, 1833)
M a t e r i a l e x a m i n e d: Trap 2: 1♀ 5-20.v., 1♀ 1-15.vi., 2♀♀ 29.vi.-13.vii.; trap 4: 1♀ 5- 20.v., 1♀ 29.vi.-13.vii., 1♀ 24.viii.-7.ix.; trap 7: 1♀ 21.iv.-5.v.; trap 8: 1♀ 15-29.vi. Trap 12: 1♀ 15-29.vi.; trap 12: 1♀ 5-20.v., 1♀ 20.v.-1.vi., 1♀ 15-29.vi., 1♀ 29.vi.-13.vii., 1♀ 27.vii.-10.viii., 1♀ 10-24.viii.
D i s t r i b u t i o n: Holarctic, known from Georgia (DJANELIDZE 1967, RIEDEL et al. 2018, RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 108, DOI: 10.5281/zenodo.10415120
First-Order Logic in Finite Domains: Where Semantic Evaluation Competes with SMT Solving
Creators: name: Schreiner, Wolfgang
name: Reichl, Franz-Xaver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In this paper, we compare two alternative mechanisms for deciding the validity of first-order formulas over finite domains supported by the mathematical model checker RISCAL: first, the original approach of semantic evaluation (based on an implementation of the denotational semantics of the RISCAL language) and, second, the later approach of SMT solving (based on satisfiability preserving translations of RISCAL formulas to SMT-LIB formulas as inputs for SMT solvers). After a short presentation of the two approaches and a discussion of their fundamental pros and cons, we quantitatively evaluate them, both by a set of artificial benchmarks and by a set of benchmarks taken from real-life applications of RISCAL; for this, we apply the state-of-the-art SMT solvers Boolector, CVC4, Yices, and Z3. Our benchmarks demonstrate that (while SMT solving generally vastly outperforms semantic evaluation), the various SMT solvers exhibit great performance differences. More important, we identify classes of formulas where semantic evaluation is able to compete with (or even outperform) satisfiability solving, outlining some room for improvements in the translation of RISCAL formulas to SMT-LIB formulas as well as in the current SMT technology.
description: In Proceedings SCSS 2021, arXiv:2109.02501
Astiphromma tenuicorne
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Astiphromma
Astiphromma tenuicorne

description: Astiphromma tenuicorne (THOMSON, 1886)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 15-29.vi., 1♀ 29.vi.-13.vii., 1♀ 13-27.vii., 1♀ 27.vii.- 10.viii.; trap 12: 1♀ 29.vi.-13.vii., 1♀ 27.vii.-10.viii.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 108, DOI: 10.5281/zenodo.10415120
AAOmega radial velocities rule out current membership of the planetary nebula NGC 2438 in the open cluster M46
Creators: name: Kiss, L. L.
name: Szabo, Gy. M.
name: Balog, Z.
name: Parker, Q. A.
name: Frew, D. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new radial velocity measurements of 586 stars in a one-degree field centered on the open cluster M46, and the planetary nebula NGC 2438 located within a nuclear radius of the cluster. The data are based on medium-resolution optical and near-infrared spectra taken with the AAOmega spectrograph on the Anglo-Australian Telescope. We find a velocity difference of about 30 km/s between the cluster and the nebula, thus removing all ambiguities about the cluster membership of the planetary nebula caused by contradicting results in the literature. The line-of-sight velocity dispersion of the cluster is 3.9+/-0.3 km/s, likely to be affected by a significant population of binary stars.
description: 6 pages + 5 figures, accepted for publication in MNRAS
Cidaphus areolatus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Cidaphus
Cidaphus areolatus

description: Cidaphus areolatus (BOIE, 1850)
M a t e r i a l e x a m i n e d: Trap4: 1♀ 27.vii.-10.viii., 1♀ 10-24.viii., 1♀ 24.viii.-7.ix., 1♀ 7- 21.ix., 1♀ 21.ix.-5.x.
D i s t r i b u t i o n: Transpalaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 108, DOI: 10.5281/zenodo.10415120
Essays in the economics of uncertainty
Creators: name: Epstein, Larry Gedaleah
Publisher: name: University of British Columbia
Year: 2010

description: There have been several recent advances in the theory of choice under uncertainty that have extended the restrictive mean-variance framework. Working within the context of a model of expected utility maximization, Rothschild and Stiglitz (1970) and Diamond and Stiglitz (1974) present intuitively appealing and theoretically sound definitions of "greater risk or uncertainty". Moreover, they show that their definitions are useful as well as consistent, in that they may be used to derive comparative statics results in which economists are interested. In the first part of the thesis we argue that the above analyses and most related ones are restricted to models where both the decision variable and the exogenous random variable that defines the stochastic environment, are scalars. Then we extend many of the definitions and results to the context of a general multivariate decision problem. In particular, a generalized notion of risk independence is shown to be relevant to behaviour under uncertainty. This general analysis is then applied to two specific decision problems: first, the standard two-period consumer choice problem where current consumption must be decided upon subject to uncertainty about future income and prices; and second, the corresponding problem in the theory of the firm, where a competitive firm must make some production decisions subject to uncertainty about the prices that will prevail for some products and factors of production. We extend earlier studies of these problems by considering disaggregated models, by adopting theoretically consistent definitions of increased uncertainty and by investigating the role of production flexibility in determining firm behaviour under uncertainty. In both the consumer and producer models the crucial properties of preferences and technology are pointed out and flexible functional forms are hypothesized that are amenable to empirical estimation. The theory of duality plays an important part throughout the formulation and analysis of both models. Finally the basic theory of producer behaviour analysed above is applied to aggregate U.S. manufacturing data for the 1947-71 period. We assume that the capital stock decision must be made one period before the capital comes into operation, subject to expectations about uncertain future prices, while all other factors and outputs may be adjusted fully to current prices. An added important ingredient of the model is the distinction between the capital stock and utilization (depreciation) decisions, the latter being made in each period after that period's prices are known. The consistency of the model with the data is investigated and the empirical significance of our formulation of the capital utilization decision is tested.
HD 179949b: A Close Orbiting Extrasolar Giant Planet with a stratosphere?
Creators: name: Barnes, J. R.
name: Barman, Travis S.
name: Jones, H. R. A.
name: Leigh, C. J.
name: Cameron, A. Collier
name: Barber, R. J.
name: Pinfield, D. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out a search for the 2.14 micron spectroscopic signature of the close orbiting extrasolar giant planet, HD 179949b. High cadence time series spectra were obtained with the CRIRES spectrograph at VLT1 on two closely separated nights. Deconvolution yielded spectroscopic profiles with mean S/N ratios of several thousand, enabling the near infrared contrast ratios predicted for the HD 179949 system to be achieved. Recent models have predicted that the hottest planets may exhibit spectral signatures in emission due to the presence of TiO and VO which may be responsible for a temperature inversion high in the atmosphere. We have used our phase dependent orbital model and tomographic techniques to search for the planetary signature under the assumption of an absorption line dominated atmospheric spectrum, where T and V are depleted from the atmospheric model, and an emission line dominated spectrum, where TiO and VO are present. We do not detect a planet in either case, but the 2.120 - 2.174 micron wavelength region covered by our observations enables the deepest near infrared limits yet to be placed on the planet/star contrast ratio of any close orbiting extrasolar giant planet system. We are able to rule out the presence of an atmosphere dominated by absorption opacities in the case of HD 179949b at a contrast ratio of F_p/F_* ~ 1/3350, with 99 per cent confidence.
description: 9 pages
Oil, water and crater-like landforms of the Libyan Desert
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2013
Subjects: Satellite imagery
Image processing

description: The paper is proposing a survey of a region of the Libyan desert, south of the Waha oil field and south-east of the Sarir oil field, using the satellite images from Google Maps. The images reveal several crater-like landforms, which could be subsidence or, perhaps, impact craters.
description: Published in Scribd, https://www.scribd.com/document/126027773/Oil-Water-and-Crater-like-Landforms-of-the-Libyan-Desert
Symbolic Computation in Software Science: My Personal View
Creators: name: Buchberger, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Symbolic Computation (cs.SC)
subject: Artificial Intelligence (cs.AI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In this note, I develop my personal view on the scope and relevance of symbolic computation in software science. For this, I discuss the interaction and differences between symbolic computation, software science, automatic programming, mathematical knowledge management, artificial intelligence, algorithmic intelligence, numerical computation, and machine learning. In the discussion of these notions, I allow myself to refer also to papers (1982, 1985, 2001, 2003, 2013) of mine in which I expressed my views on these areas at early stages of some of these fields.
description: In Proceedings SCSS 2021, arXiv:2109.02501
Mesochorus (Mesochorus) anomalus HOLMGREN 1860
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Mesochorus
Mesochorus anomalus

description: Mesochorus (Mesochorus) anomalus HOLMGREN, 1860
M a t e r i a l e x a m i n e d: Trap7: 1♀ 20.v.-1.vi.
D i s t r i b u t i o n: Western Palaearctic, known from Georgia (RIEDEL et al. 2018).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 109, DOI: 10.5281/zenodo.10415120
Is the minimum value of an option on variance generated by local volatility?
Creators: name: Beiglboeck, Mathias
name: Friz, Peter
name: Sturm, Stephan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Finance (q-fin.CP)
subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 91G99

description: We discuss the possibility of obtaining model-free bounds on volatility derivatives, given present market data in the form of a calibrated local volatility model. A counter-example to a wide-spread conjecture is given.
Error Analysis of the Light Curve Solution of Contact Binaries Based on the W-D Code
Creators: name: Liu, Liang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We use the idea of repeat measurement to determine the mean value and error of light curve solution parameters of contact binaries. Our simulation is realized by the Monte Carlo algorithm and Wilson-Devinney code. This method can obtain the systematic and random error simultaneously. Within our 48 models, the systematic errors are smaller than the random errors in most case. According to the numerical calculations, it is found that the relative errors of photometric mass ratios are less than 1% for totally eclipsing contact binaries, while they are generally between 10% and 20% for partly eclipsing ones. The effect of third light on the errors of photometric solution is also investigated. With a third light, these errors are close to 10% for totally eclipsing contact binaries. Specially, it is better to set the third light to zero in flux if that light is very faint (e.g., less than 1% contribution in luminosity), because such faint third light will bring big errors to the light curve solutions.
description: 8 figures, and 48 supplements of figure
Discussion on "Bayesian Regression Tree Models for Causal Inference: Regularization, Confounding, and Heterogeneous Effects" by Hahn, Murray and Carvalho
Creators: name: Hu, Liangyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: Hahn et al. (2020) offers an extensive study to explicate and evaluate the performance of the BCF model in different settings and provides a detailed discussion about its utility in causal inference. It is a welcomed addition to the causal machine learning literature. I will emphasize the contribution of the BCF model to the field of causal inference through discussions on two topics: 1) the difference between the PS in the BCF model and the Bayesian PS in a Bayesian updating approach, 2) an alternative exposition of the role of the PS in outcome modeling based methods for the estimation of causal effects. I will conclude with comments on avenues for future research involving BCF that will be important and much needed in the era of Big data.
Strain-Rate Frequency Superposition in Large-Amplitude Oscillatory Shear
Creators: name: Kalelkar, Chirag
name: Lele, Ashish
name: Kamble, Samruddhi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In a recent work, Wyss, {\it et.al.} [Phys. Rev. Lett., {\bf 98}, 238303 (2007)] have noted a property of `soft solids' under oscillatory shear, the so-called strain-rate frequency superposition (SRFS). We extend this study to the case of soft solids under large-amplitude oscillatory shear (LAOS). We show results from LAOS studies in a monodisperse hydrogel suspension, an aqueous gel, and a biopolymer suspension, and show that constant strain-rate frequency sweep measurements with soft solids can be superimposed onto master curves for higher harmonic moduli, with the {\it same} shift factors as for the linear viscoelastic moduli. We show that the behavior of higher harmonic moduli at low frequencies in constant strain-rate frequency sweep measurements is similar to that at large strain amplitudes in strain-amplitude sweep tests. We show surface plots of the harmonic moduli and the energy dissipation rate per unit volume in LAOS for soft solids, and show experimentally that the energy dissipated per unit volume depends on the first harmonic loss modulus alone, in both the linear and the nonlinear viscoelastic regime.
description: 10 pages, 25 figures, accepted for publication in Physical Review E. Incorporates referee comments
FRAGMENT-MNP: Developing a mechanistic model of Micro and NanoPlastic FRAGMentation in the ENvironmenT
Creators: name: Harrison, Sam
name: Cross, Richard
name: Wohlleben, Wendel
name: Pfohl, Patrizia
name: Wiesner, Mark
name: Praetorius, Antonia
name: Santizo, Katherine
name: Sipe, Joana
name: Adediran, Gbotemi
name: Svendsen, Claus
Publisher: name: Zenodo
Year: 2021
Subjects: microplastics
fragmentation
environment

description: In this poster, we describe the FRAGMENT-MNP project, which aims to develop and deliver a pragmatic open-source mechanistic model of how environmental factors affect plastic fragmentation and degradation rates. The poster was presented at the 22nd Annual Workshop of the European Chemical Industry Council Long-Range Research Initiative (Cefic-LRI) on 8-9 November 2021 in Brussels, Belgium.
Kinship Verification Based on Cross-Generation Feature Interaction Learning
Creators: name: Dong, Guan-Nan
name: Pun, Chi-Man
name: Zhang, Zheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Kinship verification from facial images has been recognized as an emerging yet challenging technique in many potential computer vision applications. In this paper, we propose a novel cross-generation feature interaction learning (CFIL) framework for robust kinship verification. Particularly, an effective collaborative weighting strategy is constructed to explore the characteristics of cross-generation relations by corporately extracting features of both parents and children image pairs. Specifically, we take parents and children as a whole to extract the expressive local and non-local features. Different from the traditional works measuring similarity by distance, we interpolate the similarity calculations as the interior auxiliary weights into the deep CNN architecture to learn the whole and natural features. These similarity weights not only involve corresponding single points but also excavate the multiple relationships cross points, where local and non-local features are calculated by using these two kinds of distance measurements. Importantly, instead of separately conducting similarity computation and feature extraction, we integrate similarity learning and feature extraction into one unified learning process. The integrated representations deduced from local and non-local features can comprehensively express the informative semantics embedded in images and preserve abundant correlation knowledge from image pairs. Extensive experiments demonstrate the efficiency and superiority of the proposed model compared to some state-of-the-art kinship verification methods.
An Inversion Tool for Conditional Term Rewriting Systems -- A Case Study of Ackermann Inversion
Creators: name: Mikkelsen, Maria Bendix
name: Glück, Robert
name: Kirkeby, Maja H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We report on an inversion tool for a class of oriented conditional constructor term rewriting systems. Four well-behaved rule inverters ranging from trivial to full, partial and semi-inverters are included. Conditional term rewriting systems are theoretically well founded and can model functional and non-functional rewrite relations. We illustrate the inversion by experiments with full and partial inversions of the Ackermann function. The case study demonstrates, among others, that polyvariant inversion and input-output set propagation can reduce the search space of the generated inverse systems.
description: In Proceedings VPT 2021, arXiv:2109.02001
Magnetic analogue of the LOFF phase in Sr3Ru2O7
Creators: name: Berridge, A. M.
name: Grigera, S. A.
name: Simons, B. D.
name: Green, A. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The phase diagram of Sr3Ru2O7 contains a metamagnetic transition that bifurcates to enclose an anomalous phase with intriguing properties - a large resistivity with anisotropy that breaks the crystal-lattice symmetry. We propose that this is a magnetic analogue of the spatially inhomogeneous superconducting Fulde-Ferrell-Larkin-Ovchinnikov state. Based on a microscopic theory of Stoner magnetism we derive a Ginzburg-Landau expansion where the magnetisation transverse to the applied field can become spatially inhomogeneous. We show that this reproduces the observed phase diagram of Sr3Ru2O7.
description: 20 pages, 16 figures; revisions to text and figures
The two-loop functional renormalization-group approach to the one- and two-dimensional Hubbard model
Creators: name: Katanin, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the application of the two-loop functional renormalization-group (fRG) approach to study the low-dimensional Hubbard model. This approach accounts for both, the universal and non-universal contributions to the RG flow. While the universal contributions were studied previously within the field-theoretical RG for the one-dimensional Hubbard model with linearized electronic dispersion and the two-dimensional Hubbard model with flat Fermi surface, the non-universal contributions appear to be important for the flow of the vertices and susceptibilities at large momenta scales. The two-loop fRG approach is also applied to the two-dimensional Hubbard model with a curved Fermi surface and the van Hove singularities near the Fermi level. The vertices and susceptibilities in the end of the flow of the two-loop approch are suppressed in comparison with both the one-loop approach with vertex projection and the modified one-loop approach with corrected vertex projection errors. The results of the two-loop approach are closer to the results of one-loop approach with the projected vertices, the difference of the results of one- and two-loop fRG approaches decreases when going away from the van Hove band filling. The quasiparticle weight remains finite in two dimensions at not too low temperatures above the paramagnetic ground state.
An early shutdown circuit for power reduction in high-precision dynamic comparators
Creators: name: Shahpari, Nima
name: Habibi, Mehdi
name: Malcovati, Piero
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Dynamic comparators are an essential part of low-power analog to digital converters (ADCs) and are referred to as one of the most important building blocks in mixed mode circuits. The power consumption and accuracy of dynamic comparators directly affects the overall power consumption and effective number of bits of the ADC. In this paper, an early shutdown approach is proposed to deactivate the first stage preamplifier at the suitable time. Furthermore, a time domain offset cancellation technique is incorporated to reduce offset effects. With the proposed method power consumption can be reduced in low power high precision dynamic comparators. The proposed method has been simulated in a standard 0.18μm CMOS technology and the results confirm its effectiveness. The proposed circuit has the ability of reducing the power consumption by 21.7% in the worst case, while having little effect on the speed and accuracy in comparison with the conventional methods. The proposed comparator consumes only 47μW while operating at 500MHz. Furthermore, Monte Carlo evaluations showed that the standard deviation of the residual input referred offset was 620μV.
On orbifolds and free fermion constructions
Creators: name: Donagi, Ron
name: Wendland, Katrin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This work develops the correspondence between orbifolds and free fermion models. A complete classification is obtained for orbifolds X/G with X the product of three elliptic curves and G an abelian extension of a group (Z_2)^2 of twists acting on X. Each such quotient X/G is shown to give a geometric interpretation to an appropriate free fermion model, including the geometric NAHE+ model. However, the semi-realistic NAHE free fermion model is proved to be non-geometric: its Hodge numbers are not reproduced by any orbifold X/G. In particular cases it is shown that X/G can agree with some Borcea-Voisin threefolds, an orbifold limit of the Schoen threefold, and several further orbifolds thereof. This yields free fermion models with geometric interpretations on such special threefolds.
description: 46 pages; typos corrected and references added
Hard scattering and QCD Fundamentals at RHIC
Creators: name: Tannenbaum, M. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In 1998, at the 4th QCD workshop, Rolf Baier asked me whether jets could be measured in Au+Au collisions because he had a prediction of a QCD medium-effect (energy loss via soft gluon radiation induced by multiple scattering) on color-charged partons traversing a hot-dense-medium composed of screened color-charges. I reviewed the possibilities in a talk explaining that there was a general consensus that for Au+Au central collisions at $\sqrt{s_{NN}}=200$ GeV, leading particles are the only way to find jets because of the large particle density. The good news was that hard-scattering in p-p collisions was originally observed by the method of leading particles and that these techniques could be used to study hard-scattering and jets in Au+Au collisions. Notably, I described ``How everything you want to know about jets can be found using 2-particle correlations''. In fact, the predicted ``jet quenching'' and other new phenomena were discovered by this method. However, this past year, I had to soften the statement to {\em almost everything} because we found by explicit calculation in PHENIX that the away-side two-particle correlation $p_{T_a}$ spectrum from a $π^0$ trigger with $p_{T_t}$ is not sensitive to the fragmentation function--overturning a belief dating from the seminal paper of Feynman, Field and Fox in 1977. A new formula was derived which showed that the shape of the $p_{T_a}$ spectrum depends only on the power $n$ of the parton invariant cross section so that NLO pQCD calculations of the two particle away-side correlations are, in fact, less sensitive to the shape of the fragmentation function than calculations of the inclusive $π^0$ cross section.
description: 7 pages, 5 figures, Talk given at 9th Workshop on Non-Perturbative Quantum Chromodynamics, Paris, France, 4-8 Jun 2007
The sky brightness and transparency in i-band at Dome A, Antarctica
Creators: name: Zou, Hu
name: Zhou, Xu
name: Jiang, Zhaoji
name: Ashley, M. C. B.
name: Cui, Xiangqun
name: Feng, Longlong
name: Gong, Xuefei
name: Hu, Jingyao
name: Kulesa, C. A.
name: Lawrence, J. S.
name: Liu, Genrong
name: Luong-Van, D. M.
name: Ma, Jun
name: Moore, A. M.
name: Qin, Weijia
name: Shang, Zhaohui
name: Storey, J. W. V.
name: Sun, Bo
name: Travouillon, T.
name: Walker, C. K.
name: Wang, Jiali
name: Wang, Lifan
name: Wu, Jianghua
name: Wu, Zhenyu
name: Xia, Lirong
name: Yan, Jun
name: Yang, Ji
name: Yang, Huigen
name: Yao, Yongqiang
name: Yuan, Xiangyan
name: York, D.
name: Zhang, Zhanhai
name: Zhu, Zhenxi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The i-band observing conditions at Dome A on the Antarctic plateau have been investigated using data acquired during 2008 with the Chinese Small Telescope ARray. The sky brightness, variations in atmospheric transparency, cloud cover, and the presence of aurorae are obtained from these images. The median sky brightness of moonless clear nights is 20.5 mag arcsec^{-2} in the SDSS $i$ band at the South Celestial Pole (which includes a contribution of about 0.06 mag from diffuse Galactic light). The median over all Moon phases in the Antarctic winter is about 19.8 mag arcsec^{-2}. There were no thick clouds in 2008. We model contributions of the Sun and the Moon to the sky background to obtain the relationship between the sky brightness and transparency. Aurorae are identified by comparing the observed sky brightness to the sky brightness expected from this model. About 2% of the images are affected by relatively strong aurorae.
description: There are 1 Latex file and 14 figures accepted by AJ
Shaping the English-Canadian novel, 1820-1900
Creators: name: Gerson, Carole Fainstat
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation examines nineteenth-century Canadian fiction in relation to the cultural context from which it emerged. The first three chapters present the difficulties which undermined the development of the novel in a conservative colonial community. Chapter I surveys the literary nationalists who called for the establishment of a distinctive Canadian literature and deplored the apathy of the Canadian public; chapter II documents Victorian Canada's suspicion of the novel as a valid literary form; chapter III looks at the problem of finding valid material for fiction in a recently settled land which appeared to lack the historical and cultural associations presumed necessary for literature. The fourth and fifth chapters provide the critical focus of this dissertation by analyzing nineteenth-century Canadian discussions of the theory of the novel. Sara Jeannette Duncan, post-Confederation Canada's most radical literary critic, argued consistently that the romantic novel was obsolete. Despite Duncan's vigorous promotion of Howellsian realism, most Canadians remained faithful to the standard of Sir Walter Scott, and read and wrote romantic fiction conforming to the moral and aesthetic principles outlined by Goldwin Smith in his 1871 address on "The Lamps of Fiction." The opposition between Duncan's realism and Smith's romanticism provides an indigenous critical framework in which to evaluate the work of nineteenth-century Canadian novelists. The last four chapters examine the efforts of Canadian writers to fit Canadian materials to the forms and conventions of popular romance. Chapter VI shows how John Richardson's search for exciting Canadian subjects suitable for the romance of high adventure was repeated by other writers throughout the century. Chapter VII discusses Victorian Canada's taste for historical romance as part of a movement to discover and recover Canadian history, and analyzes An Algonquin Maiden (1887) by G.M. Adam and E.A. Wetherald as a deliberate effort to prescribe historical romance as the proper mode for Canadian fiction. Most novelists interested in history abandoned English Canada for Acadia and Quebec, however, and their work is the subject of Chapter VIII. William Kirby's The Golden Dog (1877) provided a prototype for historical fiction about Quebec; the work of Susan Frances Harrison and Duncan Campbell Scott epitomizes the imaginative importance French Canada held for English Canada. Even when nineteenth-century writers turned to everyday experience their treatment of ordinary life was tinged by their taste for romance and didacticism, as Chapter IX shows. With a few exceptions, Canadian writers refrained from realism until many years after the route to modernism was indicated by Duncan Campbell Scott's stories of the North and Sara Jeannette Duncan's novel, The Imperialist (1904).
Program Specialization as a Tool for Solving Word Equations
Creators: name: Nepeivoda, Antonina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The paper focuses on the automatic generating of the witnesses for the word equation satisfiability problem by means of specializing an interpreter which tests whether a composition of variable substitutions of a given word equation system produces its solution. We specialize such an interpreter w.r.t. the equation system, while the substitutions are unknown. We show that several variants of such interpreters, when specialized using the basic unfold/fold specialization methods, are able to construct the whole solution sets for some classes of the word equations whose left- and right-hand sides share variables. We prove that the specialization process wrt the constructed interpreters gives a simple syntactic criterion of the satisfiability of the equations considered, and show that the suggested approach can solve some equations not solvable by Z3str3 and CVC4, the widely-used SMT-solvers.
description: In Proceedings VPT 2021, arXiv:2109.02001. arXiv admin note: text overlap with arXiv:2007.12247
Mesochorus (Mesochorus) atriventris CRESSON 1872
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Mesochorus
Mesochorus atriventris

description: Mesochorus (Mesochorus) atriventris CRESSON, 1872
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 20.iv.-5.v.; trap 12: 1♀ 15-29.vi., 1♀ 29.vi.-13.vii.
D i s t r i b u t i o n: Holarctic and Oriental, known form Georgia (RIEDEL et al. 2018).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 109, DOI: 10.5281/zenodo.10415120
High-redshift Lyman Alpha Emitters in the era of Euclid and RST
Creators: name: Bruton, Sean
Publisher: name: Zenodo
Year: 2021

description: The epoch of reionization is arguably the least well known of the phase changes of the universe. It is currently the subject of much study, with researchers trying to nail down precisely how it proceeded. One promising avenue to study this question is with the topology of reionization. By studying the angular size of the first reionized bubbles of gas, we may determine which of the galaxy scenarios provided the bulk of the ionizing output. High-redshift Lyman Alpha Emitters (LAEs) may be seen only when residing in these ionized bubbles, and so can be treated as tracers of the ionized universe. We are simulating the expected spatial distribution of LAEs as will be seen in the scheduled deep fields of Euclid, a ESA space telescope mission slated to launch in 2022, in the scheduled deep fields. These 3 fields cover 40 square degrees and thus allow an angular correlation analysis over the large scales necessary to measure the topology of reionization. With a similar spectrographic wavelength coverage but 4x the primary mirror collecting area, the Roman Space Telescope will be able to detect much fainter LAEs at these high redshifts than Euclid. I will present our results for the Euclid Survey and a discussion of what these results imply for the Roman Space Telescope.
Low-lying $Λ$ Baryons with spin 1/2 in Two-flavor Lattice QCD
Creators: name: Takahashi, Toru T.
name: Oka, Makoto
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Low-lying $Λ$ baryons with spin 1/2 are analyzed in full (unquenched) lattice QCD. We construct $2 \times 2$ cross correlators from flavor SU(3) "octet" and "singlet" baryon operators, and diagonalize them so as to extract information of two low-lying states for each parity. The two-flavor CP-PACS gauge configurations are used, which are generated in the renormalization-group improved gauge action and the ${\mathcal O}(a)$-improved quark action. Three different $β$'s, $β= 1.80$, 1.95 and 2.10, are employed, whose corresponding lattice spacings are $a = 0.2150$, 0.1555 and 0.1076 fm. For each cutoff, we use four hopping parameters, ($κ_{\rm val}, κ_{\rm sea}$), which correspond to the pion masses ranging about from 500 MeV to 1.1 GeV. Results indicate that there are two negative-parity $Λ$ states nearly degenerate at around 1.6 GeV, while no state as low as $Λ(1405)$ is observed. By decomposing the flavor components of each state, we find that the lowest (1st-excited) negative-parity state is dominated by flavor-singlet (flavor-octet) component. We also discuss meson-baryon components of each state, which has drawn considerable attention in the context of multi-quark pictures of $Λ(1405)$.
description: 11 pages, 11 figures, 3 tables; version to appear in Phys. Rev. D
Dynamics of alliance formation and the egalitarian revolution
Creators: name: Gavrilets, Sergey
name: Duenez-Guzman, Edgar A.
name: Vose, Michael D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Arguably the most influential force in human history is the formation of social coalitions and alliances (i.e., long-lasting coalitions) and their impact on individual power. In most great ape species, coalitions occur at individual and group levels and among both kin and non-kin. Nonetheless, ape societies remain essentially hierarchical, and coalitions rarely weaken social inequality. In contrast, human hunter-gatherers show a remarkable tendency to egalitarianism, and human coalitions and alliances occur not only among individuals and groups, but also among groups of groups. Here, we develop a stochastic model describing the emergence of networks of allies resulting from within-group competition for status or mates between individuals utilizing dyadic information. The model shows that alliances often emerge in a phase transition-like fashion if the group size, awareness, aggressiveness, and persuasiveness of individuals are large and the decay rate of individual affinities is small. With cultural inheritance of social networks, a single leveling alliance including all group members can emerge in several generations. Our results suggest that a rapid transition from a hierarchical society of great apes to an egalitarian society of hunter-gatherers (often referred to as "egalitarian revolution") could indeed follow an increase in human cognitive abilities. The establishment of stable group-wide egalitarian alliances creates conditions promoting the origin of cultural norms favoring the group interests over those of individuals.
description: 37 pages, 15 figures
Chern-Simons Theory in the Temporal Gauge and Knot Invariants through the Universal Quantum R-Matrix
Creators: name: Morozov, Alexei
name: Smirnov, Andrey
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In temporal gauge A_{0}=0 the 3d Chern-Simons theory acquires quadratic action and an ultralocal propagator. This directly implies a 2d R-matrix representation for the correlators of Wilson lines (knot invariants), where only the crossing points of the contours projection on the xy plane contribute. Though the theory is quadratic, P-exponents remain non-trivial operators and R-factors are easier to guess then derive. We show that the topological invariants arise if additional flag structure (xy plane and an y line in it) is introduced, R is the universal quantum R-matrix and turning points contribute the "enhancement" factors q^ρ.
description: 27 pages, 17 figures
Requerimientos de infraestructura técnica para el desarrollo del Repositorio Nacional de Angola
Creators: name: United Nations Educational, Scientific and Cultural Organization
name: Ministério Do Ensino Superior, Ciência
name: Redalyc-Universidad Autónoma Del Estado De México
name: AmeliCA
name: Universidade Óscar Ribas
Publisher: name: Zenodo
Year: 2022
Subjects: Acceso Abierto
Angola
África
Repositorio Nacional de Angola
Software abierto
Divulgación científica y tecnológica

description: Trabajo derivado del proyecto de colaboración entre Redalyc UAEM, AmeliCA, MESCTI y U. Óscar Ribas financiado por UNESCO para el desarrollo de una estrategia de Acceso Abierto en Angola. Vol. 28 de 38
description: {"references": ["Digital Ocean. (2021). DigitalOcean \u2013 The developer cloud. https://www.digitalocean.com/", "Duraspace. (2021). Duraspace. Duraspace.Org. https://duraspace.org/", "Network Information Center (NIC). (2021). Network Information Center. Network Information Center. https://nic.com/"]}
Improving Dynamic Code Analysis by Code Abstraction
Creators: name: Mastroeni, Isabella
name: Arceri, Vincenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: In this paper, our aim is to propose a model for code abstraction, based on abstract interpretation, allowing us to improve the precision of a recently proposed static analysis by abstract interpretation of dynamic languages. The problem we tackle here is that the analysis may add some spurious code to the string-to-execute abstract value and this code may need some abstract representations in order to make it analyzable. This is precisely what we propose here, where we drive the code abstraction by the analysis we have to perform.
description: In Proceedings VPT 2021, arXiv:2109.02001