cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Epiblema costipunctana
Creators: name: Joos, R Enato
name: Fritsch, Dieter
name: Bryner, Rudolf
name: Billen, Wolfgang
name: Wicki, Christoph
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tortricidae
Epiblema
Epiblema costipunctana

description: 4999 Epiblema costipunctana (Haworth, 1811), Abb. 3g
Basel (BS), Hörnli, 10.6.2015. Bis Mitte des letzten Jahrhunderts liegen für diese seltene Art einige Funddaten aus der Schweiz vor. Seither gibt es nur noch vereinzelte Beobachtungen. Dieser neue Nachweis ist erfreulich.
description: Published as part of Joos, R Enato, Fritsch, Dieter, Bryner, Rudolf, Billen, Wolfgang & Wicki, Christoph, 2018, Vielfalt der nachtaktiven Gross- und Kleinschmetterlinge in zwei Parkanlagen bei Basel, pp. 57-71 in Entomo Helvetica 11 on page 62, DOI: 10.5169/seals-986024, http://zenodo.org/record/8034307
The SPS Agreement and Agri-food Trade Disputes: The Final Frontier
Creators: name: Isaac, Grant E.
name: Isaac, Grant E.
Publisher: name: Unknown
Year: 2004
Subjects: subject: International Relations/Trade
subject: agricultural trade policy
subject: domestic regulatory policies
subject: sanitary and phytosanitary (SPS) measures
subject: World Trade Organization

description: Without modification, the World Trade Organization's Agreement on Sanitary and Phytosanitary Measures (SPS Agreement) will become the battleground for many complex agricultural trade disputes. There are two interrelated reasons for this. The first reason is that the agreement confers on members considerable unilateral power to implement unchallengeable market access barriers to agri-food imports, provided those members have a legitimate justification to do so. The second reason is that much ambiguity continues to exist regarding what properly constitutes a legitimate justification. Therefore, modifications to the SPS Agreement are required to fully characterize a legitimate justification, thus ensuring that SPS-related market access barriers will be wielded in a manner consistent with ensuring public health while preventing unnecessary trade distortion.
Localized adversarial artifacts for compressed sensing MRI
Creators: name: Alaifari, Rima
name: Alberti, Giovanni S.
name: Gauksson, Tandri
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: As interest in deep neural networks (DNNs) for image reconstruction tasks grows, their reliability has been called into question (Antun et al., 2020; Gottschling et al., 2020). However, recent work has shown that, compared to total variation (TV) minimization, when appropriately regularized, DNNs show similar robustness to adversarial noise in terms of $\ell^2$-reconstruction error (Genzel et al., 2022). We consider a different notion of robustness, using the $\ell^\infty$-norm, and argue that localized reconstruction artifacts are a more relevant defect than the $\ell^2$-error. We create adversarial perturbations to undersampled magnetic resonance imaging measurements (in the frequency domain) which induce severe localized artifacts in the TV-regularized reconstruction. Notably, the same attack method is not as effective against DNN based reconstruction. Finally, we show that this phenomenon is inherent to reconstruction methods for which exact recovery can be guaranteed, as with compressed sensing reconstructions with $\ell^1$- or TV-minimization.
description: 14 pages, 7 figures
An action variable of the sine-Gordon model
Creators: name: Mikhailov, Andrei
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It was conjectured that the classical bosonic string in AdS times a sphere has a special action variable which corresponds to the length of the operator on the field theory side. We discuss the analogous action variable in the sine-Gordon model. We explain the relation between this action variable and the Backlund transformations and show that the corresponding hidden symmetry acts on breathers by shifting their phase. It can be considered a nonlinear analogue of splitting the solution of the free field equations into the positive- and negative-frequency part.
description: v3,4: added explanations, discussion of O(N) sigma-model in section 5 v5: correction in the Introduction, small changes
Do Public Program Benefits Crowd Out Private Transfers in Developing Countries? A Critical Review of Recent Evidence
Creators: name: Nikolov, Plamen
name: Bonci, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: Precipitated by rapid globalization, rising inequality, population growth, and longevity gains, social protection programs have been on the rise in low- and middle-income countries (LMICs) in the last three decades. However, the introduction of public benefits could displace informal mechanisms for risk-protection, which are especially prevalent in LMICs. If the displacement of private transfers is considerably large, the expansion of social protection programs could even lead to social welfare loss. In this paper, we critically survey the recent empirical literature on crowd-out effects in response to public policies, specifically in the context of LMICs. We review and synthesize patterns from the behavioral response to various types of social protection programs. Furthermore, we specifically examine for heterogeneous treatment effects by important socioeconomic characteristics. We conclude by drawing on lessons from our synthesis of studies. If poverty reduction objectives are considered, along with careful program targeting that accounts for potential crowd-out effects, there may well be a net social gain.
Nuclear recoil correction to the hyperfine splitting in atomic systems
Creators: name: Pachucki, Krzysztof
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We consider leading $O(m/M)$ nuclear recoil corrections to the hyperfine splitting in light atomic systems. Due to the singularity of hyperfine interactions, the electromagnetic form factors of the nucleus have to be introduced as a function of the four-momentum square, which goes beyond the Hamiltonian description of the system. We present a compact formula for $O(Z\,α)$ recoil corrections and indicate the importance, especially for light atoms, of a more realistic description of the nuclear structure effects.
description: 8 pages
Secular evolution of galactic discs: constraints on phase-space density
Creators: name: Avila-Reese, V.
name: Carrillo, A.
name: Valenzuela, O.
name: Klypin, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It was argued in the past that bulges of galaxies cannot be formed through collisionless secular evolution because that would violate constraints on the phase-space density: the phase-space density in bulges is several times larger than in the inner parts of discs. We show that these arguments against secular evolution are not correct. Observations give estimates of the coarsely grained phase-space densities of galaxies, f'=rho_s/(sigma_R sigma_phi sigma_z), where rho_s is stellar density and sigma_R, sigma_phi, sigma_z are the radial, tangential, and vertical rms velocities of stars. Using high-resolution N-body simulations, we study the evolution of f' in discs of Galaxy-size models. During the secular evolution, the discs, which are embedded in live CDM haloes, form a bar and then a thick, dynamically hot, central mass concentration. In the course of evolution f' declines at all radii, not just in the central region. However, the decline is different in different parts of the disc. In the inner disc, f'(R) develops a valley with a minimum around the end of the central mass concentration. The final result is that the values of f' in the central regions are significantly larger than those in the inner disc. The minimum, which gets deeper with time, seems to be due to a large phase mixing produced by the outer bar. We find that the shape and the amplitude of f'(R) for different simulations agree qualitatively with the observed f'(R) in our Galaxy. Curiously enough, the fact that the coarsely grained phase-space density of the bulge is significantly larger than the one of the inner disc turns out to be an argument in favor of secular formation of bulges, not against it.
description: 9 pages, 5 figures included. Accepted for publication in MNRAS. Minor changes after referee's report. Two figures added (possition-velocity diagrams) to show (i) the agreement in the mass distribution of one of our models with that of the Galaxy, and (ii) the (minor) influence of gas on this distribution
GPU-Accelerated Drug Discovery with Docking on the Summit Supercomputer: Porting, Optimization, and Application to COVID-19 Research
Creators: name: LeGrand, Scott
name: Scheinberg, Aaron
name: Tillack, Andreas F.
name: Thavappiragasam, Mathialakan
name: Vermaas, Josh V.
name: Agarwal, Rupesh
name: Larkin, Jeff
name: Poole, Duncan
name: Santos-Martins, Diogo
name: Solis-Vasquez, Leonardo
name: Koch, Andreas
name: Forli, Stefano
name: Hernandez, Oscar
name: Smith, Jeremy C.
name: Sedova, Ada
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biomolecules (q-bio.BM)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: J.3; D.1.3

description: Protein-ligand docking is an in silico tool used to screen potential drug compounds for their ability to bind to a given protein receptor within a drug-discovery campaign. Experimental drug screening is expensive and time consuming, and it is desirable to carry out large scale docking calculations in a high-throughput manner to narrow the experimental search space. Few of the existing computational docking tools were designed with high performance computing in mind. Therefore, optimizations to maximize use of high-performance computational resources available at leadership-class computing facilities enables these facilities to be leveraged for drug discovery. Here we present the porting, optimization, and validation of the AutoDock-GPU program for the Summit supercomputer, and its application to initial compound screening efforts to target proteins of the SARS-CoV-2 virus responsible for the current COVID-19 pandemic.
The Effects of Alternative Proposals for Agricultural Export Subsidies in the Current WTO Round
Creators: name: Conforti, Piero
name: Velazquez, Beatriz E.
name: Conforti, Piero
name: Velazquez, Beatriz E.
Publisher: name: Unknown
Year: 2004
Subjects: subject: International Relations/Trade
subject: export competition
subject: GTAP model
subject: WTO negotiations

description: The article is aimed at assessing the impact of reducing and/or eliminating EU export subsidies within the next WTO round. The Global Trade Analysis Project (GTAP) model and database are employed to study the effects of the two main proposals put forward on this matter by the EU and the U.S. Results of the simulations confirm the common knowledge that the elimination of EU export subsidies would bring about increases in prices, exports and production for several net exporters of agricultural products. At the same time, such effects are all relatively small in size, particularly the effects on trade, production and welfare, even under the more radical scenario that simulates the elimination of export subsidies. Despite the fact that some net importing countries would suffer from a more expensive import bill, benefits may arise for some of them in terms of incentives to substitute domestic production for imports. This is the case in the Mediterranean region, and to a lesser extent sub-Saharan Africa.
Maximaler Winkelfall
Creators: name: Schröer, Harald
Publisher: name: Zenodo
Year: 2021
Subjects: maximal, Winkel, Dreieck,gleichschenklig,Extremum,gleichschenkliges Dreieck

description: Der maximale Winkel bei einen Dreieck wird berechnet, es wird bewiesen, daß das Maximum beim gleichschenkligen Dreieck angenommen wird,
Quantum Many-Body Scars: A Quasiparticle Perspective
Creators: name: Chandran, Anushya
name: Iadecola, Thomas
name: Khemani, Vedika
name: Moessner, Roderich
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Weakly interacting quasiparticles play a central role in the low-energy description of many phases of quantum matter. At higher energies, however, quasiparticles cease to be well-defined in generic many-body systems due to a proliferation of decay channels. In this review, we discuss the phenomenon of quantum many-body scars, which can give rise to certain species of stable quasiparticles throughout the energy spectrum. This goes along with a set of unusual non-equilibrium phenomena including many-body revivals and non-thermal stationary states. We provide a pedagogical exposition of this physics via a simple yet comprehensive example, that of a spin-1 XY model. We place our discussion in the broader context of symmetry-based constructions of many-body scar states, projector embeddings, and Hilbert space fragmentation. We conclude with a summary of experimental progress and theoretical puzzles.
description: 23 pages + refs, 2 figures. Small changes from v1. Accepted version for Annual review of Condensed Matter Physics
The role of sensation seeking and optimism bias on speeding behaviour among young adults
Creators: name: Bruno, Talino
Publisher: name: University of British Columbia
Year: 2009

description: This study analyzed the relationship between Sensation Seeking (SS) and Optimism bias (OB) and their role in speeding among young adult participants (19-30). Sensation seeking is a personality trait characterized by an individual's propensity to engage in risky and sometimes novel activities. Optimism Bias is a tendency for individuals to view themselves as more skilled and less prone to negative consequences than others in the population. Both, SS and OB have been linked to risky driving behavior such as speeding. Two hundred sixteen participants (males =101 and females =115) were recruited from the lower mainland of British Columbia. Participants completed the Sensation Seeking Scale, Optimism Bias questionnaire and a demographic questionnaire, which included questions that provided a dependent variable quantified by the Mean Speed Ratio (MSR). Participants were divided into high, moderate and low groups based on scores from the Sensation Seeking scale. The same categories were used to divide participants based on OB scores. It was hypothesized that participants high in SS would have higher MSRs than low or moderate SS participants. It was also hypothesized that high OB participants would also have higher MSRs than low or moderate OB participants. The main hypothesis focused on the combination of High SS and OB. It was expected, based on theory, that this combination would provide higher MSR for participants high in SS and OB when compared to individuals low in SS and OB. The results of the study found that there were significant differences between High SS and low or moderate individuals. Participants high in OB did not differ significantly from those moderate or low in OB in their reported MSR. A significant difference was found between High SS and OB participants and Low OB and SS participants. Exploratory analyses were conducted looking at speeding citations and levels of the independent variables. Age groups and gender were analyzed in post hoc analyses. The results of this study provide further support to the contention that sensation seeking plays a role in speeding behaviour. The role of optimism bias did not seem to play a significant role in reported speeding as measured by the MSR. The combination of High OB and SS seemed to play a significant role in participants' MSR score. Possible explanations for the results were explored and implications for counselling psychology, based on these finding, were discussed.
Prospects of searching for unstable nucleus states in relativistic nuclear fragmentation
Creators: name: Aretemenkov, D. A.
name: Bradnova, V.
name: Kashanskaya, O. N
name: Kondratieva, N. V.
name: Kornegrutsa, N. K.
name: Mitsova, E.
name: Peresadko, N. G.
name: Rusakova, V. V.
name: Stanoeva, R.
name: Zaitsev, A. A.
name: Zarubin, P. I.
name: Zarubina, I. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The article is dedicated to the experimental study in the relativistic approach to the problems of nuclear cluster physics for the prospects of the \href{http://becquerel.jinr.ru/}{BECQUEREL} experiment. The nuclear emulsion method applied in this experiment makes it possible to study thoroughly the relativistic final states in the fragmentation of nuclei. The focus of the presented research is the dynamics of emergence of the $^{8}$Be nucleus and the Hoyle state, as well as the search for the 4$α$-particle condensate decaying via the above nuclear states. In this context, the analysis of exposure to $^{84}$Kr nuclei at 950 MeV/nucleon is shown. As a continuation of the study of light nuclei, we have demonstrated the search for the isobar-analogue state of the $ ^{13} $N nucleus in the fragmentation of $ ^{14} $N nuclei at 2 GeV/nucleon.
description: Presented at XVth Cherenkov Readings https://x4u.lebedev.ru/che2022/announce_ru-RU.html; submitted to Physics of Atomic Nuclei/
Exact Results on Equations of Motion in Vacuum String Field Theory
Creators: name: Hata, Hiroyuki
name: Moriyama, Sanefumi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove some algebraic relations on the translationally invariant solutions and the lump solutions in vacuum string field theory. We show that up to the subtlety at the midpoint the definition of the half-string projectors of the known sliver solution can be generalized to other solutions. We also find that we can embed the translationally invariant solution into the matrix equation of motion with the zero mode.
description: 12 pages, no figures, LaTeX2e, v2: references added
Limited range extrapolation with quantitative bounds and applications
Creators: name: Cao, Mingming
name: Liu, Honghai
name: Si, Zengyan
name: Yabuta, Kôzô
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B20, 42B25

description: In recent years, sharp or quantitative weighted inequalities have attracted considerable attention on account of $A_2$ conjecture solved by Hytönen. Advances have greatly improved conceptual understanding of classical objects such as Calderón-Zygmund operators. However, plenty of operators do not fit into the class of Calderón-Zygmund operators and fail to be bounded on all $L^p(w)$ spaces for $p \in (1, \infty)$ and $w \in A_p$. In this paper we develop Rubio de Francia extrapolation with quantitative bounds to investigate quantitative weighted inequalities for operators beyond the (multilinear) Calderón-Zygmund theory. We mainly establish a quantitative multilinear limited range extrapolation in terms of exponents $p_i \in (\mathfrak{p}_i^-, \mathfrak{p}_i^+)$ and weights $w_i^{p_i} \in A_{p_i/\mathfrak{p}_i^-} \cap RH_{(\mathfrak{p}_i^+/p_i)'}$, $i=1, \ldots, m$, which refines a result of Cruz-Uribe and Martell. We also present an extrapolation from multilinear operators to the corresponding commutators. Additionally, our result is quantitative and allows us to extend special quantitative estimates in the Banach space setting to the quasi-Banach space setting. Our proof is based on an off-diagonal extrapolation result with quantitative bounds. Finally, we present various applications to illustrate the utility of extrapolation by concentrating on quantitative weighted estimates for some typical multilinear operators such as bilinear Bochner-Riesz means, bilinear rough singular integrals, and multilinear Fourier multipliers. In the linear case, based on the Littlewood-Paley theory, we include weighted jump and variational inequalities for rough singular integrals.
Road Grade Estimation Using Crowd-Sourced Smartphone Data
Creators: name: Gupta, Abhishek
name: Hu, Shaohan
name: Zhong, Weida
name: Sadek, Adel
name: Su, Lu
name: Qiao, Chunming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Estimates of road grade/slope can add another dimension of information to existing 2D digital road maps. Integration of road grade information will widen the scope of digital map's applications, which is primarily used for navigation, by enabling driving safety and efficiency applications such as Advanced Driver Assistance Systems (ADAS), eco-driving, etc. The huge scale and dynamic nature of road networks make sensing road grade a challenging task. Traditional methods oftentimes suffer from limited scalability and update frequency, as well as poor sensing accuracy. To overcome these problems, we propose a cost-effective and scalable road grade estimation framework using sensor data from smartphones. Based on our understanding of the error characteristics of smartphone sensors, we intelligently combine data from accelerometer, gyroscope and vehicle speed data from OBD-II/smartphone's GPS to estimate road grade. To improve accuracy and robustness of the system, the estimations of road grade from multiple sources/vehicles are crowd-sourced to compensate for the effects of varying quality of sensor data from different sources. Extensive experimental evaluation on a test route of ~9km demonstrates the superior performance of our proposed method, achieving $5\times$ improvement on road grade estimation accuracy over baselines, with 90\% of errors below 0.3$^\circ$.
description: Proceedings of 19th ACM/IEEE Conference on Information Processing in Sensor Networks (IPSN'20)
Correlations in STAR: interferometry and event structure
Creators: name: Kopytine, Mikhail
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: STAR observes a complex picture of RHIC collisions where correlation effects of different origins -- initial state geometry, semi-hard scattering, hadronization, as well as final state interactions such as quantum intensity interference -- coexist. Presenting the measurements of flow, mini-jet deformation, modified hadronization, and the Hanbury Brown and Twiss effect, we trace the history of the system from the initial to the final state. The resulting picture is discussed in the context of identifying the relevant degrees of freedom and the likely equilibration mechanism.
description: 8 pages, 6 figures, plenary talk at the 5th International Conference on Physics and Astrophysics of Quark Gluon Plasma, to appear in Journal of Physics G (http://www.iop.org)
Stability of the ball for attractive-repulsive energies
Creators: name: Bonacini, Marco
name: Cristoferi, Riccardo
name: Topaloglu, Ihsan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a class of attractive-repulsive energies, given by the sum of two nonlocal interactions with power-law kernels, defined over sets with fixed measure. It has recently been proved by R. Frank and E. Lieb that the ball is the unique (up to translation) global minimizer for sufficiently large mass. We focus on the issue of the stability of the ball, in the sense of the positivity of the second variation of the energy with respect to smooth perturbations of the boundary of the ball. We characterize the range of masses for which the second variation is positive definite (large masses) or negative definite (small masses). Moreover, we prove that the stability of the ball implies its local minimality among sets sufficiently close in the Hausdorff distance, but not in $L^1$-sense.
description: This is a post-peer-review, pre-copyedit version of an article published in the SIAM Journal on Mathematical Analysis. The final authenticated version is available online at: https://doi.org/10.1137/22M1506894
EOSC-hub D4.2 Operational Infrastructure Roadmap
Creators: name: Paolini, Alessandro
Publisher: name: Zenodo
Year: 2019

description: In order to harmonize the operational procedures among a large variety of EOSC service providers, EOSC-hub uses and expands the existing federation services and policies of EGI and EUDAT, the main e-infrastructures involved in the project, to create the operational framework of the EOSC and bases its IT Management System on the FitSM standard. This implies that all the EOSC operational activities will be directed by policies and will be structured and organised by processes and procedures with the final aim to offer to the end users a single fluid platform ensuring the smooth interoperability of the various service offers. The document describes the consequent operations coordination work to harmonize activities and plans for service delivery among the involved actors, depicts the current status of implementation of the EOSC SMS and presents a roadmap to have it fully established and operational.
The Effects of Alternative Proposals for Agricultural Export Subsidies in the Current WTO Round: Technical Annex
Creators: name: Conforti, Piero
name: Velazquez, Beatriz E.
name: Conforti, Piero
name: Velazquez, Beatriz E.
Publisher: name: Unknown
Year: 2004
Subjects: International Relations/Trade

description: This document is the technical annex to the full paper "The Effects of Alternative Proposals for Agricultural Export Subsidies in the Current WTO Round" which is available separately.
Quantum mechanical calculation of the effects of stiff and rigid constraints in the conformational equilibrium of the Alanine dipeptide
Creators: name: Echenique, Pablo
name: Calvo, Ivan
name: Alonso, J. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: If constraints are imposed on a macromolecule, two inequivalent classical models may be used: the stiff and the rigid one. This work studies the effects of such constraints on the Conformational Equilibrium Distribution (CED) of the model dipeptide HCO-L-Ala-NH2 without any simplifying assumption. We use ab initio Quantum Mechanics calculations including electron correlation at the MP2 level to describe the system, and we measure the conformational dependence of all the correcting terms to the naive CED based in the Potential Energy Surface (PES) that appear when the constraints are considered. These terms are related to mass-metric tensors determinants and also occur in the Fixman's compensating potential. We show that some of the corrections are non-negligible if one is interested in the whole Ramachandran space. On the other hand, if only the energetically lower region, containing the principal secondary structure elements, is assumed to be relevant, then, all correcting terms may be neglected up to peptides of considerable length. This is the first time, as far as we know, that the analysis of the conformational dependence of these correcting terms is performed in a relevant biomolecule with a realistic potential energy function.
description: 37 pages, 4 figures, LaTeX, BibTeX, AMSTeX
Resurgence in the Bi-Yang-Baxter Model
Creators: name: Schepers, Lucas
name: Thompson, Daniel C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the integrable bi-Yang-Baxter deformation of the $SU(2)$ principal chiral model (PCM) and its finite action uniton solutions. Under an adiabatic compactification on an $S^1$, we obtain a quantum mechanics with an elliptic Lamé-like potential. We perform a perturbative calculation of the ground state energy in this quantum mechanics to large orders obtaining an asymptotic series. Using the Borel-Padé technique, we determine the expected locations of branch cuts in the Borel plane of the perturbative series and show that they match the values of the uniton actions. Therefore, we can match the non-perturbative contributions to the energy with the uniton solutions which fractionate upon adiabatic compactification. An off-shoot of the WKB analysis, is to identify the quadratic differential of this deformed PCM with that of an $\mathcal{N}=2$ Seiberg-Witten theory. This can be done either as an $N_f=4$ $SU(2)$ theory or as an elliptic quiver $SU(2)\times SU(2)$ theory. The mass parameters of the gauge theory are given by the deformation parameters of the PCM.
description: 50 pages, 18 figures
Optical selection rules and phase-dependent adiabatic state control in a superconducting quantum circuit
Creators: name: Liu, Yu-xi
name: You, J. Q.
name: Wei, L. F.
name: Sun, C. P.
name: Nori, Franco
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the optical selection rules of the microwave-assisted transitions in a flux qubit superconducting quantum circuit (SQC). We show that the parities of the states relevant to the superconducting phase in the SQC are well-defined when the external magnetic flux $Φ_{e}=Φ_{0}/2$, then the selection rules are same as the ones for the electric-dipole transitions in usual atoms. When $Φ_{e}\neq Φ_{0}/2$, the symmetry of the potential of the artificial "atom'' is broken, a so-called $Δ$-type "cyclic" three-level atom is formed, where one- and two-photon processes can coexist. We study how the population of these three states can be selectively transferred by adiabatically controlling the electromagnetic field pulses. Different from $Λ$-type atoms, the adiabatic population transfer in our three-level $Δ$-atom can be controlled not only by the amplitudes but also by the phases of the pulses.
Guiding the retraining of convolutional neural networks against adversarial inputs
Creators: name: López, Francisco Durán
name: Martínez-Fernández, Silverio
name: Felderer, Michael
name: Franch, Xavier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Background: When using deep learning models, there are many possible vulnerabilities and some of the most worrying are the adversarial inputs, which can cause wrong decisions with minor perturbations. Therefore, it becomes necessary to retrain these models against adversarial inputs, as part of the software testing process addressing the vulnerability to these inputs. Furthermore, for an energy efficient testing and retraining, data scientists need support on which are the best guidance metrics and optimal dataset configurations.
 Aims: We examined four guidance metrics for retraining convolutional neural networks and three retraining configurations. Our goal is to improve the models against adversarial inputs regarding accuracy, resource utilization and time from the point of view of a data scientist in the context of image classification.
 Method: We conducted an empirical study in two datasets for image classification. We explore: (a) the accuracy, resource utilization and time of retraining convolutional neural networks by ordering new training set by four different guidance metrics (neuron coverage, likelihood-based surprise adequacy, distance-based surprise adequacy and random), (b) the accuracy and resource utilization of retraining convolutional neural networks with three different configurations (from scratch and augmented dataset, using weights and augmented dataset, and using weights and only adversarial inputs).
 Results: We reveal that retraining with adversarial inputs from original weights and by ordering with surprise adequacy metrics gives the best model w.r.t. the used metrics.
 Conclusions: Although more studies are necessary, we recommend data scientists to use the above configuration and metrics to deal with the vulnerability to adversarial inputs of deep learning models, as they can improve their models against adversarial inputs without using many inputs.
D4.5 FAIR Data Cubes - Release II
Creators: name: Mantovani, Simone
Publisher: name: Zenodo
Year: 2022
Subjects: RELIANCE
Research Objects
ROhub
RO-Crate
Data cubes
EOSC

description: RELIANCE, short for Research Lifecycle Management for Earth Science Communities and Copernicus users in EOSC, aims to realize the vision of FAIR research in EOSC by adopting a holistic research management approach based on three key and complementary technologies: i) Research objects (RO) as the overarching mechanism to manage scientific research activities; ii) data cubes as the mechanisms enabling an efficient and scalable Earth Observation data discovery and access; iii) text mining and semantic enrichment services allowing to extract machine-readable metadata from RO resources, enabling researchers to discover scientific information at scale and to structure their own research. This document describes the second release of FAIR Data Cube resources requested by RELIANCE user communities and made available within the RELIANCE project. The FAIR Data Cube resources are stored in cloud resources located across the RELIANCE partner infrastructures, and discussion with external projects and initiatives (e.g., DICE H2020 Project) has started to evaluate the potential synergy and provisioning of additional cloud storage. The Data Cube Metadata Model adopted for describing FAIR Data Cubes and Data Cube API are detailed in the D4.1 and D4.2, respectively. The final releases of this deliverable is planned at month M21 to track the extension of Data Cube resources made available within the RELIANCE project.
description: This is the draft version of the deliverable not yet approved by the European Commission.
Geiselmann, Josef Rupert, Die Heilige Schrift und die Tradition
Creators: name: Valeske, Ulrich
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 13 Nr. 1 (1964): Ökumenische Rundschau, Band 13, Heft 1
Communities in C.elegans connectome through the prism of non-backtracking walks
Creators: name: Onuchin, Arsenii
name: Chernizova, Alina
name: Lebedev, Mikhail
name: Polovnikov, Kirill
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The fundamental relationship between the mesoscopic structure of neuronal circuits and organismic functions they subserve is one of the major challenges in contemporary neuroscience. Formation of structurally connected modules of neurons enacts the conversion from single-cell firing to large-scale behaviour of an organism, highlighting the importance of their accurate profiling in the data. While connectomes are typically characterized by significant sparsity of neuronal connections, recent advances in network theory and machine learning have revealed fundamental limitations of traditionally used community detection approaches in cases where the network is sparse. Here we studied the optimal community structure in the structural connectome of C.elegans, for which we exploited a non-conventional approach that is based on non-backtracking random walks, virtually eliminating the sparsity issue. In full agreement with the previous asymptotic results, we demonstrated that non-backtracking walks resolve the ground truth annotation into clusters on stochastic block models (SBM) with the size and density of the connectome better than the spectral methods related to simple random walks. Based on the cluster detectability threshold, we determined that the optimal number of modules in a recently mapped connectome of C.elegans is 10, which precisely corresponds to the number of isolated eigenvalues in the spectrum of the non-backtracking flow matrix. Broadly, our work provides a robust network-based framework to reveal mesoscopic structures in sparse connectomic datasets, paving way to further investigation of connectome mechanisms for different functions.
description: This work previously appeared as arXiv:2207.00767 under an accidental replacement
The experience of postpartum depression : a grounded theory study
Creators: name: Regev, Michal
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to explore the experience of postpartum depression and to generate a substantive theory that would describe and explain this experience. Although the area of postpartum depression has been extensively researched in the past three decades the overwhelming majority of studies have employed quantitative research methods. These methods do not illuminate the experience from the women's point of view and they disregard the context within which the experience occurs. This study employed the Grounded Theory Method, a naturalistic-inductive method o f inquiry, that allowed for the participants' experience to be described and for a substantive theory to emerge, which is grounded in the data. Sixteen women (age range 27 to 42 years) were interviewed twice about their experience of depression following childbirth. The first interview focused on the women's experience of depression, while the second interview centred on the women's comments and suggestions regarding the researcher's thematic summaries of their interviews. A semi-structured interview guide was used during both interviews, which allowed for variations to emerge while a unified framework was maintained. The grounded theory analysis of the data led to the development of a substantive theory describing and explaining the social-psychological process of the experience of postpartum depression. The theoretical model that describes and explains the experience has six phases: (1) Becoming Lost, (2) Getting Trapped, (3) Deep in Depression, (4) Struggling to Break Out, (5) Breaking out, and (6) Staying Well. In addition, two recurrent themes were identified: (a) The Relationship with the Partner, and (b) A Redefined Self. The theoretical model illustrates the relationship among the different phases, as well as the properties that make the phases up. It also describes the types, circumstances and conditions under which the experience occurs. Most of the components of the theoretical model are supported by the literature on postpartum depression. However, the model adds to the literature in identifying specific parts of the process of postpartum depression such as the period leading to the onset of depression, the struggle to come out of the depression and women's agency in coming out of the depression and maintaining their wellness following recovery. As well, the study illuminated the changes in the relationship with the partner, and the process of redefining self through the experience of PPD. Finally, the implications for further research and practice that stem from the theoretical model that was developed are discussed.
Dirty Tariffication Revisited: The EU and Sugar
Creators: name: Swinbank, Alan
name: Swinbank, Alan
Publisher: name: Unknown
Year: 2004
Subjects: subject: International Relations/Trade
subject: agriculture
subject: EU
subject: sugar
subject: tariffication
subject: trade

description: It is widely believed that a number of countries, including the EU, engaged in dirty tariffication during the Uruguay Round of trade talks. This article examines the EU's record on sugar and finds little evidence to substantiate the claim. However, world prices increased between the base period (1986-88) and the date of implementation (1995), and so tariffication resulted in an increase in the tax that would have been charged on sugar imports into the EU. As well, the Special Safeguard provisions meant that a substantial additional levy could be charged.
Vortex-Phonon Interaction in the Kosterlitz-Thouless Theory
Creators: name: Kozik, Evgeny
name: Prokof'ev, Nikolay
name: Svistunov, Boris
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The "canonical" variables of the Kosterlitz-Thouless theory--fields $Φ_0({\bf r})$ and $ϕ({\bf r})$, generally believed to stand for vortices and phonons (or their XY equivalents, like spin waves, etc.) turn out to be neither vortices and phonons, nor, strictly speaking, {\it canonical} variables. The latter fact explains paradoxes of (i) absence of interaction between $Φ_0$ and $ϕ$, and (ii) non-physical contribution of small vortex pairs to long-range phase correlations. We resolve the paradoxes by explicitly relating $Φ_0$ and $ϕ$ to canonical vortex-pair and phonon variables.
description: 4 pages, RevTex
A Stochastic Mobility-Driven Spatially Explicit SEIQRD COVID-19 Model with VOCs, Seasonality, and Vaccines
Creators: name: Alleman, Tijs W.
name: Rollier, Michiel
name: Vergeynst, Jenna
name: Baetens, Jan M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In this work, we extend our previously developed compartmental SEIQRD model for SARS-CoV-2 in Belgium. We introduce SARS-CoV-2 variants of concern, vaccines, and seasonality in our model, as their addition has proven necessary for modelling SARS-CoV-2 transmission dynamics during the 2020-2021 COVID-19 pandemic in Belgium. The model is geographically stratified into eleven spatial patches (provinces), and a telecommunication dataset provided by Belgium's biggest operator is used to incorporate interprovincial mobility. We calibrate the model using the daily number of hospitalisations in each province and serological data. We find the model adequately describes these data, but the addition of interprovincial mobility was not necessary to obtain an accurate description of the 2020-2021 SARS-CoV-2 pandemic in Belgium. We further demonstrate how our model can be used to help policymakers decide on the optimal timing of the release of social restrictions. We find that adding spatial heterogeneity by geographically stratifying the model results in more uncertain model projections as compared to an equivalent nation-level model, which has both communicative advantages and disadvantages. We finally discuss the impact of imposing local mobility or social contact restrictions to contain an epidemic in a given province and find that lowering social contact is a more effective strategy than lowering mobility.
description: 27 pages main text containing 12 figures and 3 tables; 26 pages supplementary material containing 19 figures and 8 tables; 8 final pages containing 63 references
Hybrid Control for Learning Motor Skills
Creators: name: Abraham, Ian
name: Broad, Alexander
name: Pinosky, Allison
name: Argall, Brenna
name: Murphey, Todd D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We develop a hybrid control approach for robot learning based on combining learned predictive models with experience-based state-action policy mappings to improve the learning capabilities of robotic systems. Predictive models provide an understanding of the task and the physics (which improves sample-efficiency), while experience-based policy mappings are treated as "muscle memory" that encode favorable actions as experiences that override planned actions. Hybrid control tools are used to create an algorithmic approach for combining learned predictive models with experience-based learning. Hybrid learning is presented as a method for efficiently learning motor skills by systematically combining and improving the performance of predictive models and experience-based policies. A deterministic variation of hybrid learning is derived and extended into a stochastic implementation that relaxes some of the key assumptions in the original derivation. Each variation is tested on experience-based learning methods (where the robot interacts with the environment to gain experience) as well as imitation learning methods (where experience is provided through demonstrations and tested in the environment). The results show that our method is capable of improving the performance and sample-efficiency of learning motor skills in a variety of experimental domains.
PPPM and TreePM Methods on GRAPE Systems for Cosmological N-body Simulations
Creators: name: Yoshikawa, Kohji
name: Fukushige, Toshiyuki
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Particle-Particle-Particle-Mesh (PPPM) and Tree Particle-Mesh (TreePM) implementations on GRAPE-5 and GRAPE-6A systems, special-purpose hardware accelerators for gravitational many-body simulations. In our PPPM and TreePM implementations on GRAPE, the computational time is significantly reduced compared with the conventional implementations without GRAPE, especially under the strong particle clustering, and almost constant irrespective of the degree of particle clustering. We carry out the survey of two simulation parameters, the PM grid spacing and the opening parameter for the most optimal combination of force accuracy and computational speed. We also describe the parallelization of these implementations on a PC-GRAPE cluster, in which each node has one GRAPE board, and present the optimal configuration of simulation parameters for good parallel scalability.
description: 21 pages, 9 figures, accepted for publication in PASJ
Resistivity saturation in an electron-doped cuprate
Creators: name: Poniatowski, Nicholas R.
name: Sarkar, Tarapada
name: Sarma, Sankar Das
name: Greene, Richard L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the observation of resistivity saturation in lightly doped ($x\sim 0.10)$ as-grown samples of the electron-doped cuprate La$_{2-x}$Ce$_x$CuO$_4$ (LCCO). The saturation occurs at resistivity values roughly consistent with the phenomenological Mott-Ioffe-Regel criterion once the low effective carrier density of these materials is included in the analysis. These results imply that, at least for light doping, the high-temperature metallic phase of these materials is not necessarily strange and may be understood as simply a low-density metal.
description: 5 pages, 2 figures