cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary Materials from The expressive function of public policy: renewable energy mandates signal social norms
Creators: name: Syropoulos, Stylianos
name: Sparkman, Gregg
name: Constantino, Sara M.
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310901
subject: Animal behaviour
classificationCode: 419999
subject: Other environmental sciences not elsewhere classified

description: Addressing collective action problems requires individuals to engage in coordinated and cooperative behaviours. Existing research suggests that individuals' propensity to work together depends in part on their belief that others support the cause in question. People learn about these social norms from many sources. To date, most of the literature has focussed on how normative perceptions are inferred from peers or summary statistics. We explore an understudied source of norm information: the passage of policies by democratically elected institutions. Institutional signals, such as the setting of defaults, national laws or policies, can act as coordination devices, signalling or prescribing social norms to large audiences. However, their expressive function is likely to depend on whether the institution is seen as accountable to the public. In two highly powered, pre-registered experiments (N = 11 636), we examine the role of policy signals as a source of social norm information. In Study 1, Americans randomly assigned to learn that their state passed a 100% renewable energy mandate believe that a greater percentage of their state's residents support such a mandate. In Study 2, we replicate this effect for national policy and show that the influence is moderated by information about whether the government represents the will of the people.This article is part of the theme issue ‘Social norm change: from evolution to policy intervention’.
Asymmetrically Doped Polyacetylene
Creators: name: Caldas, Heron
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Doped one-dimensional (1D) conjugated polymers, such as polyacetylene, have a conductivity of some metals, like copper. We show that when this polymer is asymmetrically doped, unexpected properties are revealed, when compared to the behavior of the symmetrically standard doped systems (SDS). Depending on the level of imbalance between the chemical potentials of the two involved fermionic species, the polymer can be converted into a 1D partially or fully spin polarized organic conductor.
description: minor corrections, version published in Nucl. Phys. B
Evidence for coronal temperature variation in Seyfert 2 ESO 103--035 using NuSTAR observations
Creators: name: Barua, Samuzal
name: Jithesh, V.
name: Misra, Ranjeev
name: Dewangan, Gulab C
name: Sarma, Rathin
name: Pathak, Amit
name: Medhi, Biman J
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report flux-resolved spectroscopic analysis of the active galactic nucleus (AGN) ESO 103--035 using \textit{NuSTAR} observations. Following an earlier work, we fit the spectra using a thermal Comptonization model with a relativistic reflection component to obtain estimates of the coronal temperature for two flux levels. The coronal temperature was found to increase from 24.0$^{+6.8}_{-3.4}$ to 55.3$^{+54.6}_{-7.2}$ keV (errors at 1-$σ$ confidence level) as the flux increased from $9.8$ to $11.9 \times 10^{-11}$ erg cm$^{-2}$ s$^{-1}$ in the 3--78 keV band. A marginal variation in the high energy photon index allows for both, a non-varying optical depth and for the optical depth to have varied by a factor of $\sim$2. This is in contrast to a previous work on \textit{NuSTAR} flux resolved spectroscopy of the AGN, Ark 564, where the temperature was found to decrease with flux along with a $10$\% variation in the optical depth. The results maybe understood in a framework where AGN variability is either dominated by coronal heating variation leading to correlated increase of temperature with flux and the opposite effect being seen when the variability is dominated by changes in the seed photon flux.
description: Accepted for Publication in ApJ, 8 Pages, 4 Figures, 2 Tables
A Multi-viewpoint Outdoor Dataset for Human Action Recognition
Creators: name: Perera, Asanka G.
name: Law, Yee Wei
name: Ogunwa, Titilayo T.
name: Chahl, Javaan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Advancements in deep neural networks have contributed to near perfect results for many computer vision problems such as object recognition, face recognition and pose estimation. However, human action recognition is still far from human-level performance. Owing to the articulated nature of the human body, it is challenging to detect an action from multiple viewpoints, particularly from an aerial viewpoint. This is further compounded by a scarcity of datasets that cover multiple viewpoints of actions. To fill this gap and enable research in wider application areas, we present a multi-viewpoint outdoor action recognition dataset collected from YouTube and our own drone. The dataset consists of 20 dynamic human action classes, 2324 video clips and 503086 frames. All videos are cropped and resized to 720x720 without distorting the original aspect ratio of the human subjects in videos. This dataset should be useful to many research areas including action recognition, surveillance and situational awareness. We evaluated the dataset with a two-stream CNN architecture coupled with a recently proposed temporal pooling scheme called kernelized rank pooling that produces nonlinear feature subspace representations. The overall baseline action recognition accuracy is 74.0%.
description: 10 pages, 4 figures
title: Understanding Wetlands and Irrigation in the  Little Snake River Basin, Wyoming
Creators: name: Washkoviak, Lindsey
Publisher: name: Utah State University
Year: 2019

description: The Little Snake River Basin (LSRB) is a managed basin in South-central Wyoming located within the Colorado River watershed facing severe water shortages. There is increased pressure on water resource managers and agricultural producers to adopt water efficiency practices that could negatively affect wetland resources. However, studies have begun to quantify the importance of irrigation for recharging groundwater, maintaining late season instream flows, and maintaining and creating wetlands that provide wildlife habitat and ecosystem services.
In the LSRB there are 11,636 acres of wetlands; 56% of which overlap with irrigation. Conversion to more efficient irrigation could reduce water availability to an estimated 6,500 wetland acres. The high proportion of wetlands that overlap with irrigation in the LSRB suggest high vulnerability to wetland loss if producers convert to more efficient practices. Associated ecological benefits and ecosystems services could be diminished resulting in economic losses in the basin. Conservation strategies aimed at protecting wetlands and wildlife habitat may fall short of their intended purpose if water quantity and timing associate with current water management practices are also not retained.
The objectives of this report are to: Summarize information about wetland resources and land use practices in the LSRB; Discuss results from a wetland assessment conducted by the Wyoming Natural Diversity Database which identified major wetland types, condition, and indicators of disturbance in the LSRB; Investigate the economic impact of water management changes to irrigated wetlands in the LSRB, and present trends on the public perception of irrigation in the LSRB.
title: The Impact of Immigration on Financial Markets
Creators: name: Baker, Jesse
Publisher: name: Utah State University
Year: 2019

description: This paper studies the impact of immigration policy on financial markets. I estimate the cumulative abnormal returns surrounding two events the effective start date of the Immigration Act of 1990 and the implementation of the Temporary Protected Status (TPS) of Nicaragua and Honduras in 1999. Focusing on agriculture, construction, and manufacturing firms, I find that the CARs surrounding the events are indeed positive and significant, suggesting that the market anticipated growth among industries that are likely to hire Central American immigrants.
title: Feasibility of Multi-Year Forecast for the Colorado River Water Supply: Time Series Modeling
Creators: name: Plucinski, Brian
Publisher: name: Utah State University
Year: 2019

description: The Colorado River is one of the largest resources for water in the United States, as well as being an important asset to the economy. Previous studies have shown a connection between the Great Salt Lake and the Colorado River. This study used time series analysis to build models to predict the water supply of the Colorado River ten years out. These models used data from the Colorado River in addition to Great Salt Lake water elevation. Several models suggest a decline in water supply from 2013 – 2020, before starting to increase. These predictions differ from predictions published by a 2012 government report that came from climate modeling. Comparing this study’s predictions with the 2012 government report’s predictions state a large difference between water supply and water demand around the year 2020. Further research is needed to update similar models to predict water supply. This information could be helpful in management’s decisions to influence their water saving plans.
Testing product states, quantum Merlin-Arthur games and tensor optimisation
Creators: name: Harrow, Aram W.
name: Montanaro, Ashley
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a test that can distinguish efficiently between product states of n quantum systems and states which are far from product. If applied to a state psi whose maximum overlap with a product state is 1-epsilon, the test passes with probability 1-Theta(epsilon), regardless of n or the local dimensions of the individual systems. The test uses two copies of psi. We prove correctness of this test as a special case of a more general result regarding stability of maximum output purity of the depolarising channel. A key application of the test is to quantum Merlin-Arthur games with multiple Merlins, where we obtain several structural results that had been previously conjectured, including the fact that efficient soundness amplification is possible and that two Merlins can simulate many Merlins: QMA(k)=QMA(2) for k>=2. Building on a previous result of Aaronson et al, this implies that there is an efficient quantum algorithm to verify 3-SAT with constant soundness, given two unentangled proofs of O(sqrt(n) polylog(n)) qubits. We also show how QMA(2) with log-sized proofs is equivalent to a large number of problems, some related to quantum information (such as testing separability of mixed states) as well as problems without any apparent connection to quantum mechanics (such as computing injective tensor norms of 3-index tensors). As a consequence, we obtain many hardness-of-approximation results, as well as potential algorithmic applications of methods for approximating QMA(2) acceptance probabilities. Finally, our test can also be used to construct an efficient test for determining whether a unitary operator is a tensor product, which is a generalisation of classical linearity testing.
description: 44 pages, 1 figure, 7 appendices; v6: added references, rearranged sections, added discussion of connections to classical CS. Final version to appear in J of the ACM
title: The Performance of Military Defense Contracted Companies After September 11th, 2001: The Case of Politically Connected Companies
Creators: name: Larsen, Derek J.
Publisher: name: Utah State University
Year: 2019

description: This paper examines the effect that the terrorist attacks on September 11th, 2001 had on the stock prices of companies within the military defense industry. In addition, this paper studies the effect of the defense firms’ political engagement (through lobbying activities) and how this affected the stock price response to the terrorist attacks. Our study finds that the cumulative abnormal returns of these companies are positively significant and that companies who lobbied experienced higher returns relative to those who did not lobby.
Characterisation of Artec Leo 3D scanner for radiotherapy applications
Creators: name: Crowe, Scott
name: Luscombe, Jenna
name: Poroa, Tania
name: Maxwell, Sarah
name: Cleland, Susannah
name: Kairn, Tanya
Publisher: name: Zenodo
Year: 2021
Subjects: radiotherapy
3D scanning
3D printing
medical device

description: Presentation slides describing the use of an Artec Leo 3D scanner on a volunteer cohort, to inform future use in a radiotherapy setting.
From Philosophy to Interfaces: an Explanatory Method and a Tool Inspired by Achinstein's Theory of Explanation
Creators: name: Sovrano, Francesco
name: Vitali, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: We propose a new method for explanations in Artificial Intelligence (AI) and a tool to test its expressive power within a user interface. In order to bridge the gap between philosophy and human-computer interfaces, we show a new approach for the generation of interactive explanations based on a sophisticated pipeline of AI algorithms for structuring natural language documents into knowledge graphs, answering questions effectively and satisfactorily. Among the mainstream philosophical theories of explanation we identified one that in our view is more easily applicable as a practical model for user-centric tools: Achinstein's Theory of Explanation. With this work we aim to prove that the theory proposed by Achinstein can be actually adapted for being implemented into a concrete software application, as an interactive process answering questions. To this end we found a way to handle the generic (archetypal) questions that implicitly characterise an explanatory processes as preliminary overviews rather than as answers to explicit questions, as commonly understood. To show the expressive power of this approach we designed and implemented a pipeline of AI algorithms for the generation of interactive explanations under the form of overviews, focusing on this aspect of explanations rather than on existing interfaces and presentation logic layers for question answering. We tested our hypothesis on a well-known XAI-powered credit approval system by IBM, comparing CEM, a static explanatory tool for post-hoc explanations, with an extension we developed adding interactive explanations based on our model. The results of the user study, involving more than 100 participants, showed that our proposed solution produced a statistically relevant improvement on effectiveness (U=931.0, p=0.036) over the baseline, thus giving evidence in favour of our theory.
Scattering of Giant Magnons in CP^3
Creators: name: Hatsuda, Yasuyuki
name: Tanaka, Hiroaki
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study classical scattering phase of CP^2 dyonic giant magnons in R_t x CP^3. We construct two-soliton solutions explicitly by the dressing method. Using these solutions, we compute the classical time delays for the scattering of giant magnons, and compare them to boundstate S-matrix elements derived from the conjectured AdS_4/CFT_3 S-matrix by Ahn and Nepomechie in the strong coupling limit. Our result is consistent with the conjectured S-matrix. The dyonic solutions play an essential role in revealing the polarization dependence of scattering phase.
description: 29 pages; v2: minor corrections; v3: minor corrections, references added ; v4: minor corrections ; v5: minor corrections based on the published version
Comfort and Sickness while Virtually Aboard an Autonomous Telepresence Robot
Creators: name: Suomalainen, Markku
name: Mimnaugh, Katherine J.
name: Becerra, Israel
name: Lozano, Eliezer
name: Murrieta-Cid, Rafael
name: LaValle, Steven M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Multimedia (cs.MM)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In this paper, we analyze how different path aspects affect a user's experience, mainly VR sickness and overall comfort, while immersed in an autonomously moving telepresence robot through a virtual reality headset. In particular, we focus on how the robot turns and the distance it keeps from objects, with the goal of planning suitable trajectories for an autonomously moving immersive telepresence robot in mind; rotational acceleration is known for causing the majority of VR sickness, and distance to objects modulates the optical flow. We ran a within-subjects user study (n = 36, women = 18) in which the participants watched three panoramic videos recorded in a virtual museum while aboard an autonomously moving telepresence robot taking three different paths varying in aspects such as turns, speeds, or distances to walls and objects. We found a moderate correlation between the users' sickness as measured by the SSQ and comfort on a 6-point Likert scale across all paths. However, we detected no association between sickness and the choice of the most comfortable path, showing that sickness is not the only factor affecting the comfort of the user. The subjective experience of turn speed did not correlate with either the SSQ scores or comfort, even though people often mentioned turning speed as a source of discomfort in the open-ended questions. Through exploring the open-ended answers more carefully, a possible reason is that the length and lack of predictability also play a large role in making people observe turns as uncomfortable. A larger subjective distance from walls and objects increased comfort and decreased sickness both in quantitative and qualitative data. Finally, the SSQ subscales and total weighted scores showed differences by age group and by gender.
description: Accepted for publication in EuroXR 2021
The West Spitzbergen Current in Fram Strait: insight from a model-observation analysis.
Creators: name: Houssais Marie-Noëlle
name: Herbaut Christophe
name: Paul, Roland
name: Testor Pierre
name: Blaizot Anne-Cécile
name: Mortier Laurent
Publisher: name: Zenodo
Year: 2019

description: Poster at the Arctic Science Summit Week, Arkhangelsk, Russia, 22-30 May, 2019.
Scattering efficiencies measurements of soft protons at grazing incidence from an Athena Silicon Pore Optics sample
Creators: name: Amato, R.
name: Diebold, S.
name: Guzman, A.
name: Perinati, E.
name: Tenzer, C.
name: Santangelo, A.
name: Mineo, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Soft protons are a potential threat for X-ray missions using grazing incidence optics, as once focused onto the detectors they can contribute to increase the background and possibly induce radiation damage as well. The assessment of these undesired effects is especially relevant for the future ESA X-ray mission Athena, due to its large collecting area. To prevent degradation of the instrumental performance, which ultimately could compromise some of the scientific goals of the mission, the adoption of ad-hoc magnetic diverters is envisaged. Dedicated laboratory measurements are fundamental to understand the mechanisms of proton forward scattering, validate the application of the existing physical models to the Athena case and support the design of the diverters. In this paper we report on scattering efficiency measurements of soft protons impinging at grazing incidence onto a Silicon Pore Optics sample, conducted in the framework of the EXACRAD project. Measurements were taken at two different energies, ~470 keV and ~170 keV, and at four different scattering angles between 0.6 deg and 1.2 deg. The results are generally consistent with previous measurements conducted on eROSITA mirror samples, and as expected the peak of the scattering efficiency is found around the angle of specular reflection.
description: 16 pages, 11 figures; accepted for publication on Experimental Astronomy
Quantum Einstein's Brownian motion
Creators: name: Tsekov, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Einstein's Brownian motion of a quantum particle in a classical environment is studied via virial and equipartition theorems. The effect of continuous measurement in a strongly dissipative environment is accounted for and a quantum generalization of the classical Einstein law of Brownian motion is obtained. A thermo-quantum Smoluchowski diffusion equation is derived via a generalization of the Madelung quantum hydrodynamics. The latter is applied for description of the quantum tunneling at equilibrium and stationary states as well as of the motion of an electron in metals, i.e. the Smoluchowski-Poisson problem.
description: The paper is dedicated to the 100th anniversary of A.B. Datsev
On Phantom Thermodynamics
Creators: name: Pereira, S. H.
name: Lima, J. A. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The thermodynamic properties of dark energy fluids described by an equation of state parameter $ω=p/ρ$ are rediscussed in the context of FRW type geometries. Contrarily to previous claims, it is argued here that the phantom regime $ω0$ and $S>0$ in the course of the Universe expansion. Further, the negative value of the chemical potential resulting from the entropy constraint ($S>0$) suggests a bosonic massless nature to the phantom particles.
description: 14 pages, no figures, text revised
NRQCD Predictions of D-Wave Quarkonia $^3D_{J}(J=1,2,3)$ Decay into Light Hadrons at Order $α_{s}^{3}$
Creators: name: He, Zhi-Guo
name: Fan, Ying
name: Chao, Kuang-Ta
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper, in the framework of NRQCD we study the light hadron (LH) decays of the spin-triplet (S=1) D-wave heavy quarkonia. The short distance coefficients of all Fock states in the $^3D_J(J=1,2,3)$ quarkonia including D-wave color-singlet, P-wave color-octet and S-wave color-singlet and color-octet are calculated perturbatively at $α_{s}^3$ order. The operator evolution equations of the four-fermion operators are also derived and are used to estimate the numerical values of the long distance matrix elements. We find that for the $c\bar{c}$ system, the LH decay widths of $ψ(1^3D_J)$ predicted by NRQCD is about $2\sim3$ times larger than the phenomenological potential model results, while for the $b\bar{b}$ system the two theoretical estimations of $Γ(Υ(1^3D_J)\to LH)$ are in coincidence with each other. Our predictions for $ψ(1^3D_J)$ LH decay widths are $Γ(ψ(1^3D_J)\to LH)=(0.43,0.05,0.17)$MeV for J=1,2,3; and for $Υ(1^3D_J)$, $Γ(Υ(1^3D_J)\to LH)=(6.91,0.75,2.75)$KeV for J=1,2,3.
description: 12 figures, references added, published version in PRD
Investigation of the phase occurrence and H sorption properties in the Y33.33Ni66.67-xAlx (0 <= x <= 33.33) system
Creators: name: Shen, Hao
name: Paul-Boncour, Valerie
name: Latroche, Michel
name: Cuevas, Fermin
name: Li, Ping
name: Yuan, Huiping
name: Li, Zhinian
name: Zhang, Junxian
name: Jiang, Lijun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Y33.33Ni66.67-xAlx system has been investigated in the region 0 <= x <= 33.3. The alloys were synthesized by induction melting. Phase occurrence and structural properties were studied by X-Ray powder Diffraction (XRD). The Al solubility in each phase has been investigated by XRD and Electron Probe Micro-Analysis (EPMA). The hydrogenation properties were characterized by pressure-composition isotherm measurements and kinetic curves at 473 K. For x = 0, the binary Y33.33Ni66.67 alloy crystallizes in the cubic superstructure with F4-3m space group and ordered Y vacancies. For 1.67 <= x <= 8.33, the alloys contain mainly Y(Ni, Al)2 and Y(Ni, Al)3 pseudobinary phases; while for 16.67 <= x <= 33.33 they are mainly formed by ternary line compounds Y3Ni6Al2, Y2Ni2Al and YNiAl. Contrary to the binary Y33.33Ni66.67, Y(Ni, Al)2 pseudo-binary compounds crystalize in C15 phase (space group Fd-3m ) with disordered Y vacancies. The solubility limit of Al in the C15 YNi2-yAly phase is y = 0.11 (i.e., x = 3.67). The Y(Ni, Al)3 phase changes from rhombohedral (PuNi3-type, R-3m) to hexagonal (CeNi3-type, P63/mmc) structure for x increasing from 5.00 to 6.67. Upon hydrogenation, the disproportion of C15 Y(Ni, Al)2 and losses of crystallinity of YNi and Y2Ni2Al are the main reasons causing capacity decay of Y33.33Ni66.67-xAlx (0 <= x <= 33.33) alloys upon cycling.
Inequivalent contact structures on Boothby-Wang 5-manifolds
Creators: name: Hamilton, M. J. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53D10, 53D05, 53D35

description: We consider contact structures on simply-connected 5-manifolds which arise as circle bundles over simply-connected symplectic 4-manifolds and show that invariants from contact homology are related to the divisibility of the canonical class of the symplectic structure. As an application we find new examples of inequivalent contact structures in the same equivalence class of almost contact structures with non-zero first Chern class.
description: 27 pages; to appear in Math. Zeitschrift
STADS
Creators: Aalborg Universitet
Publisher: name: Rigsarkivet
Year: 2022

description: STADS anvendes til langt de fleste facetter af almindelig studieadministration: Optagelse (herunderkommunikation med Den Koordinerede Tilmeldning), indskrivning af studerende, administration og kontrol af studieforløb, til- og afmelding til eksamen, planlægning af undervisning og eksamen, resultatregistrering i forbindelse med undervisning og eksamen, registrering af merit, bevisudskrivning og indberetning til Undervisningsministeriet og Danmarks Statistik. STADS har endvidere et selvbetjeningsmodul (STADS Selvbetjening), der gør det muligt, for de studerende via internettet at tilmelde sig undervisning og eksamen, lave karakterudskrifter osv.
$ϕ^2$ as Dark Matter
Creators: name: Matos, Tonatiuh
name: Vázquez-González, Alberto
name: Magaña, Juan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider $ϕ^2$ scalar field potential as a candidate to dark matter. If it is an ultralight boson particle, it condensates like a Bose-Einstein system at very early times and forms the basic structure of the Universe. Real scalar fields collapse in equilibrium configurations that oscillate in space-time (oscillatons).The cosmological behavior of the field equations are solved using the dynamical system formalism. We use the current cosmological parameters as constraints for the present value of the scalar field. We reproduce the cosmological predictions of the standard $Λ$CDM model with this model. Therefore, scalar field dark matter seems to be a good alternative to cold dark matter nature.
description: Accepted for publication in MNRAS 11 pages, 7 figures
DIY Editionsworkflow
Creators: name: Blumtritt, Jonathan
name: Büdenbender, Stefan
name: Geißler, Nils
name: Gengnagel, Tessa
name: Hegel, Philipp
name: Hensen, Kilian
name: Schulz, Daniela
name: Seltmann, Melanie
name: Wienert, Annika
Publisher: name: Zenodo
Year: 2022
Subjects: NFDI
Text+
Textplus
Text+ Plenary 22
Editionen
Task Area Editions
DIY Editionsworkflow

description: Poster presented at the plenary meeting of the NFDI consortium Text+ on September 12, 2022 in Mannheim, Germany.
description: Text+ receives a funding grant from the DFG under the grant agreement number 460033370. Text+ is contributing to the NFDI, the National Research Data Infrastructure (NFDI).
An exactly conservative particle method for one dimensional scalar conservation laws
Creators: name: Farjoun, Yossi
name: Seibold, Benjamin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35L65, 65M25

description: A particle scheme for scalar conservation laws in one space dimension is presented. Particles representing the solution are moved according to their characteristic velocities. Particle interaction is resolved locally, satisfying exact conservation of area. Shocks stay sharp and propagate at correct speeds, while rarefaction waves are created where appropriate. The method is variation diminishing, entropy decreasing, exactly conservative, and has no numerical dissipation away from shocks. Solutions, including the location of shocks, are approximated with second order accuracy. Source terms can be included. The method is compared to CLAWPACK in various examples, and found to yield a comparable or better accuracy for similar resolutions.
description: 29 pages, 21 figures
STADS
Creators: Aarhus Universitet
Publisher: name: Rigsarkivet
Year: 2022

description: STADS anvendes til langt de fleste facetter af almindelig studieadministration: Optagelse (herunder kommunikation med Den Koordinerede Tilmelding) og indskrivning af studerende Administration og kontrol af studieforløb Til- og afmelding til eksamen Planlægning af undervisning og eksamen Resultatregistrering i forbindelse med undervisning og eksamen Registrering af merit Bevisudskrivning. Indberetning til Undervisningsministeriet og Danmarks Statistik Statistik STADS har endvidere et selvbetjeningsmodul (STADS Selvbetjening), der gør det muligt for de studerende via internettet at tilmelde sig undervisning og eksamen, lave karakterudskrifter osv.
Deep Upper Confidence Bound Algorithm for Contextual Bandit Ranking of Information Selection
Creators: name: Rawson, Michael
name: Freeman, Jade
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Contextual multi-armed bandits (CMAB) have been widely used for learning to filter and prioritize information according to a user's interest. In this work, we analyze top-K ranking under the CMAB framework where the top-K arms are chosen iteratively to maximize a reward. The context, which represents a set of observable factors related to the user, is used to increase prediction accuracy compared to a standard multi-armed bandit. Contextual bandit methods have mostly been studied under strict linearity assumptions, but we drop that assumption and learn non-linear stochastic reward functions with deep neural networks. We introduce a novel algorithm called the Deep Upper Confidence Bound (UCB) algorithm. Deep UCB balances exploration and exploitation with a separate neural network to model the learning convergence. We compare the performance of many bandit algorithms varying K over real-world data sets with high-dimensional data and non-linear reward functions. Empirical results show that the performance of Deep UCB often outperforms though it is sensitive to the problem and reward setup. Additionally, we prove theoretical regret bounds on Deep UCB giving convergence to optimality for the weak class of CMAB problems.
title: Living Stone
Creators: name: Millward, Jason P.
Publisher: name: Utah State University
Year: 2019

description: My sculptural work has a direct relationship to the rich tradition which utilizes human form as its primary means of communication and visual exploration. This tradition employs body language and gesture to convey emotion and ideas. Even my abstract work begins as an idea from a figurative gesture. Rather than executing a naturalistic body, I simplify and stylize the figures, focusing on the concept and aesthetics of the piece.
To do so, I emphasize certain formal elements in the design: concave and convex planes juxtapose to intensify light and shadow.Shapes are made by a continuity of line to create a sense of movement. Smooth and rough textures bring energy and contrast to the surface. I employ these visual elements to develop a spiritual and universal context rather than utilizing a corporeal rendering of the subject as has been done in the past.
Geometries from Young Diagrams
Creators: name: Koch, Robert de Mello
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type IIB string theory on spacetimes that are asymptotically AdS$_5\times$S$^5$ can be defined using four dimensional ${\cal N}=4$ super Yang-Mills theory. Six of the dimensions of the string theory are holographically reconstructed in the Yang-Mills theory. In this article we study how these dimensions and local physics in these dimensions emerge. We reorganize the dynamics of the ${1\over 2}$ BPS sector of the field theory by rewriting it in terms of Schur polynomials. The Young diagram labeling of these polynomials can be viewed as a book keeping device which summarizes how the operator is constructed. We show that aspects of the geometry of the extra holographic dimensions are captured very naturally by the Young diagram. Gravitons which are localized at a specific position in the bulk correspond to boxes added at a specific location on the Young diagram.
description: 31 pages; v2: presentation improved
New radiative loss curve from updates to collisional excitation in the low-density, optically thin plasmas in SPEX
Creators: name: Štofanová, L.
name: Kaastra, J.
name: Mehdipour, M.
name: de Plaa, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Understanding and modelling astrophysical plasmas on atomic levels while taking into account various assumptions (for example, collisional ionisation equilibrium or photoionisation equilibrium) became essential with the progress of high-resolution X-ray spectroscopy. In order to prepare for the upcoming X-ray spectroscopy missions such as XRISM or Athena, the plasma codes with their models and the atomic databases need to be up to date and accurate. One such update for the plasma code SPEX is presented in this paper where we focus on the radiative loss due to collisional excitation in the low-density, optically thin regime. We also update the atomic data for neutral hydrogen and include the contribution of the dielectronic recombination. With all these updates being implemented in SPEX we finally present the new cooling curve. We include the comparison to other plasma codes (MEKAL, APEC, Cloudy) and other atomic databases (CHIANTI, ADAS). We show how the updated cooling impacts the stability curve for photoionised plasmas and find a new stable branch.
description: 17 pages, 13 figures, 6 tables, accepted for publication in Astronomy & Astrophysics
Systematic comparison between the generalized Lorenz equations and DNS in the two-dimensional Rayleigh-Bénard convection
Creators: name: Park, Junho
name: Moon, Sungju
name: Seo, Jaemyeong Mango
name: Baik, Jong-Jin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The classic Lorenz equations were originally derived from the two-dimensional Rayleigh-Bénard convection system considering an idealised case with the lowest order of harmonics. Although the low-order Lorenz equations have traditionally served as a minimal model for chaotic and intermittent atmospheric motions, even the dynamics of the two-dimensional Rayleigh-Bénard convection system is not fully represented by the Lorenz equations, and such differences have yet to be clearly identified in a systematic manner. In this paper, the convection problem is revisited through an investigation of various dynamical behaviors exhibited by a two-dimensional direct numerical simulation (DNS) and the generalized expansion of the Lorenz equations (GELE) derived by considering additional higher-order harmonics in the spectral expansions of periodic solutions. Notably, the GELE allows us to understand how nonlinear interactions among high-order modes alter the dynamical features of the Lorenz equations including fixed points, chaotic attractors, and periodic solutions. It is verified that numerical solutions of the DNS can be recovered from the solutions of GELE when we consider the system with sufficiently high-order harmonics. At the lowest order, the classic Lorenz equations are recovered from GELE. Unlike in the Lorenz equations, we observe limit tori, which are the multi-dimensional analogue of limit cycles, in the solutions of the DNS and GELE at high orders. Initial condition dependency in the DNS and Lorenz equations is also discussed.
description: Published in Chaos
Simulation study for the future IceCube-Gen2 surface array
Creators: name: Coleman, Alan
name: Leszczyńska, Agnieszka
name: Weyrauch, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The next generation of the IceCube Neutrino Observatory, IceCube-Gen2, will constitute a much larger detector, increasing the rate of high-energy neutrinos. IceCube-Gen2 will address the long-standing questions about astrophysical accelerators. The experiment will also include a surface air-shower detector which will allow for measurements of cosmic rays in the energy region where a transition between Galactic and extragalactic accelerators is expected. As a baseline design for the surface detector, we consider a surface array above the optical in-ice array consisting of the same type of stations used for the IceTop enhancement, i.e., scintillation detectors and radio antennas. In order to better understand the capabilities of such an array, we performed simulations of its response to air showers, including both detector types. We will show the results of this simulation study and discuss the prospects for the surface array of IceCube-Gen2.
description: Presented at the 37th International Cosmic Ray Conference (ICRC 2021). See arXiv:2107.06968 for all IceCube-Gen2 contributions
Matrix formulation of superspace on 1D lattice with two supercharges
Creators: name: Arianos, Sergio
name: D'Adda, Alessandro
name: Feo, Alessandra
name: Kawamoto, Noboru
name: Saito, Jun
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Following the approach developed by some of the authors in recent papers and using a matrix representation for the superfields, we formulate an exact supersymmetric theory with two supercharges on a one dimensional lattice. In the superfield formalism supersymmetry transformations are uniquely defined and do not suffer of the ambiguities recently pointed out by some authors. The action can be written in a unique way and it is invariant under all supercharges. A modified Leibniz rule applies when supercharges act on a superfield product and the corresponding Ward identities take a modified form but hold exactly at least at the tree level, while their validity in presence of radiative corrections is still an open problem and is not considered here.
description: 25 pages
Open/Closed String Topology and Moduli Space Actions via Open/Closed Hochschild Actions
Creators: name: Kaufmann, Ralph M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: In this paper we extend our correlation functions to the open/closed case. This gives rise to actions of an open/closed version of the Sullivan PROP as well as an action of the relevant moduli space. There are several unexpected structures and conditions that arise in this extension which are forced upon us by considering the open sector. For string topology type operations, one cannot just consider graphs, but has to take punctures into account and one has to restrict the underlying Frobenius algebras. In the moduli space, one first has to pass to a smaller moduli space which is closed under open/closed duality and then consider covers in order to account for the punctures.
Recommender Systems for Software Project Managers
Creators: name: Wei, Liang
name: Capretz, Luiz Fernando
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The design of recommendation systems is based on complex information processing and big data interaction. This personalized view has evolved into a hot area in the past decade, where applications might have been proved to help for solving problem in the software development field. Therefore, with the evolvement of Recommendation System in Software Engineering (RSSE), the coordination of software projects with their stakeholders is improving. This experiment examines four open source recommender systems and implemented a customized recommender engine with two industrial-oriented packages: Lenskit and Mahout. Each of the main functions was examined and issues were identified during the experiment.
description: Proceedings of the Evaluation and Assessment in Software Engineering (EASE 2021), 6 pages
title: Use of the Wet Bulb Globe Temperature in NCAA FBS Athletic Training Staffs
Creators: name: Chan, Garrison
Publisher: name: Utah State University
Year: 2019

description: Background: Heat illnesses present a major risk for athletes, especially football players. The NATA established recommendations to prevent heat illnesses that include measuring wet bulb globe temperature (WBGT), but adherence to this recommendation is unknown.
Methods: A survey was sent to all 130 Division 1 FBS athletic training staffs to determine their use of the WBGT to assess heat stress.
Results: Of the 82 respondents (63% response rate), 59 use WBGT to assess heat stress. However, only 19 use it for summer conditioning. Of the 23 universities that do not use WBGT, 10 noted that extreme heat or humidity is not an issue where they are located.
Conclusion:The majority of FBS training programs (72% of respondents) use the WBGT, but adherence to this NATA recommendation varies throughout the season (summer conditioning versus practice) and is likely influenced by the geographical location of the university.
Interactions of the solitons in periodic driven-dissipative systems supporting quasi-BIC states
Creators: name: Dolinina, D.
name: Yulin, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The paper is devoted to the dynamics of dissipative gap solitons in the periodically corrugated optical waveguides whose spectrum of linear excitations contains a mode that can be referred to as a quasi-Bound State in the Continuum. These systems can support a large variety of stable bright and dark dissipative solitons that can interact with each other and with the inhomogeneities of the pump. One of the focus points of this work is the influence of slow variations of the pump on the behavior of the solitons. It is shown that for the fixed sets of parameters the effect of pump inhomogeneities on the solitons is not the same for the solitons of different kinds. The second main goal of the paper is systematic studies of the interaction between the solitons of the same or of different kinds. It is demonstrated that various scenarios of inter-soliton interactions can occur: the solitons can repulse each other or get attracted. In the latter case, the solitons can annihilate, fuse in a single soliton or form a new bound state depending on the kinds of the interacting solitons and on the system parameters.
Neutrino oscillations: Quantum mechanics vs. quantum field theory
Creators: name: Akhmedov, Evgeny Kh.
name: Kopp, Joachim
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A consistent description of neutrino oscillations requires either the quantum-mechanical (QM) wave packet approach or a quantum field theoretic (QFT) treatment. We compare these two approaches to neutrino oscillations and discuss the correspondence between them. In particular, we derive expressions for the QM neutrino wave packets from QFT and relate the free parameters of the QM framework, in particular the effective momentum uncertainty of the neutrino state, to the more fundamental parameters of the QFT approach. We include in our discussion the possibilities that some of the neutrino's interaction partners are not detected, that the neutrino is produced in the decay of an unstable parent particle, and that the overlap of the wave packets of the particles involved in the neutrino production (or detection) process is not maximal. Finally, we demonstrate how the properly normalized oscillation probabilities can be obtained in the QFT framework without an ad hoc normalization procedure employed in the QM approach.
description: LaTeX, 42 pages, 1 figure; v2: minor clarifications, matches published version; v3: Corrected the discussion of the conditions under which an oscillation probability can be sensibly defined in the QFT approach (sec. 5.2.4)
Su 1910. L'emancipazione della dissonanza: Correva l’anno 1910 il nichilismo conquistava l’Europa
Creators: name: Magrelli, Valerio
Publisher: name: Università degli Studi di Cagliari
Year: 2014

description: Pochi anni fa, Paolo Conti pubblicò da Laterza un libro intitolato 1969. Tutto in un anno. Rispetto al celebre Sessantotto, il testo riscopriva eventi di vasta portata: Jan Palach a Praga, piazza Fontana a Milano, il divorzio in Italia, il festival di Woodstock, canzoni come Mi ritorni in mente di Battisti e Abbey Road dei Beatles, film quali Easy Rider e Fellini Satyricon, fino allo sbarco dell’uomo sulla Luna. Da parte sua, mesi fa, Florian Illies ha presentato 1913. L’anno prima della tempesta (Marsilio, p. 303, 19,50 euro). Tra musica, arte e letteratura, l’autore studia Marcel Duchamp e Ludwig Kirchner, Stravinskij e Schönberg, quindi Kafka, Rilke, Brecht, scorgendo, sullo sfondo, Freud e Hitler. Ben diverso dal primo, più simile al secondo, appare adesso 1910. L’emancipazione della dissonanza, di Thomas Harrison (Editori Riuniti, p. 330, 20 euro).
description: Between, Vol 4, N° 7 (2014): Poteri della retorica