cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Finite-word-length FPGA implementation of model predictive control for ITER resistive wall mode control
Creators: name: Gerkšič, Samo
name: Pregelj, Boštjan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 37N35, 49N10, 93B45

description: In advanced tokamak scenarios, active feedback control of unstable resistive wall modes (RWM) may be required. A RWM is an instability due to plasma kink at higher plasma pressure, moderated by the presence of a resistive wall surrounding the plasma. We address the dominant kink instability associated with the main nonaxisymmetric (n = 1) RWM, described by the CarMa model. Model predictive control (MPC) is used, with the aim of enlarging the domain of attraction of the unstable RWM modes subject to power-supply voltage constraints. The implementation of MPC is challenging, because the related quadratic programming (QP) on-line optimization problems must be solved at a sub-ms sampling rate. Using complexity-reduction pre-processing techniques and a primal fast gradient method (FGM) QP solver, sufficiently short computation times for ITER are reachable using a standard personal computer (PC). In this work we explore even faster finite-word-length (FWL) implementation using field-programmable gate arrays (FPGA), which would facilitate experimental testing of such control algorithms on dynamically faster medium-sized tokamaks, and compare the computational accuracy and time with the PC implementation.
Early-time thermalization of cosmic components? A hint for solving cosmic tensions
Creators: name: Velten, Hermano
name: Costa, Ingrid
name: Zimdahl, Winfried
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study an expanding two-fluid model of non-relativistic dark matter and radiation which are allowed to interact during a certain time span and to establish an approximate thermal equilibrium. Such interaction which generates an effective bulk viscous pressure at background level is expected to be relevant for times around the transition from radiation to matter dominance. We quantify the magnitude of this pressure for dark matter particles masses within the range $1 {\rm eV} \lesssim m_χ \lesssim 10 {\rm eV}$ around the matter-radiation equality epoch (i.e., redshift $z_{\rm eq}\sim 3400$) and demonstrate that the existence of a transient bulk viscosity has consequences which may be relevant for addressing current tensions of the standard cosmological model: i) the additional (negative) pressure contribution modifies the expansion rate around $z_{\rm eq}$, yielding a larger $H_0$ value and ii) large-scale structure formation is impacted by suppressing the amplitude of matter overdensity growth via a new viscous friction-term contribution to the Mészáros effect. As a result, both the $H_0$ and the $S_8$ tensions of the current standard cosmological model are significantly alleviated.
description: 8 pages/5 figures. V.2: version accepted for publication in PRD
The equilibrium states for semigroups of rational maps
Creators: name: Sumi, Hiroki
name: Urbanski, Mariusz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: Complex Variables (math.CV)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 37F10 (Primary) 37A35 (Secondary)

description: We consider the dynamics of skew product maps associated with finitely generated semigroups of rational maps on the Riemann sphere. We show that under some conditions on the dynamics and the potential function ψ, there exists a unique equilibrium state for ψand a unique $\exp(¶(ψ)-ψ)$-conformal measure, where P(ψ) denotes the topological pressure of ψ.
description: 23 pages
John Scheid, Ad Deam Diam. Ein heiliger Hain in Roms Suburbium
Creators: name: Griesbach, Jochen
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: John Scheid, Ad Deam Diam. Ein heiliger Hain in Roms Suburbium. SpielRäume der Antike Bd. 5. Stuttgart: Franz Steiner Verlag 2019, 68 S., 4 s/w-Abb., 4 farb. Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
title: Cómo se está adaptando Villava/Atarrabia frente al cambio climático
title: Navarra frente al cambio climático: HCCN-KLINA, LIFE-IP NAdapta-CC y la Ley Foral de cambio climático y transición energética
titleType: Subtitle
Creators: name: Almarcegui Artieda, Itziar
name: González Moreno, Miguel Ángel
Publisher: name: Gobierno de Navarra
Year: 2022
Subjects: Climate change
Navarre
Adaptation
Energy transition
Water
Forestry
Agriculture
Livestock
Health
Infrastructures
Territorial planning
Monitoring

description: Ponencia realizada en la Jornada sobre el cambio climático del IESO-DBHI Pedro de Atarrabia celebrada el 20 de diciembre de 2022.
Survival of the mm-cm size grain population observed in protoplanetary disks
Creators: name: Brauer, F.
name: Dullemond, C. P.
name: Johansen, A.
name: Henning, Th.
name: Klahr, H.
name: Natta, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Millimeter interferometry provides evidence for the presence of mm to cm size "pebbles" in the outer parts of disks around pre-main-sequence stars. The observations suggest that large grains are produced relatively early in disk evolution (< 1 Myr) and remain at large radii for longer periods of time (5 to 10 Myr). Simple theoretical estimates of the radial drift time of solid particles, however, imply that they would drift inward over a time scale of less than 0.1 Myr. In this paper, we address this conflict between theory and observation, using more detailed theoretical models, including the effects of sedimentation, collective drag forces and turbulent viscosity. We find that, although these effects slow down the radial drift of the dust particles, this reduction is not sufficient to explain the observationally determined long survival time of mm/cm-sized grains in protoplanetary disks. However, if for some reason the gas to dust ratio in the disk is reduced by at least a factor of 20 from the canonical value of 100 (for instance through photoevaporation of the gas), then the radial drift time scales become sufficiently large to be in agreement with observations.
description: Accepted for publication in Astronomy and Astrophysics
Caterina Parigi, Atene e il sacco di Silla. Evidenze archeologiche e topografiche fra l’86 e il 27 a.C.
Creators: name: Leone, Silvio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Caterina Parigi, Atene e il sacco di Silla. Evidenze archeologiche e topografiche fra l’86 e il 27 a.C. Kölner Schriften zur Archäologie Bd. 2. Wiesbaden: Reichert Verlag 2019, 240 S., 40 s/w Abb., 7 farb. Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Can confined mechanical metamaterials replace adhesives?
Creators: name: Athanasiadis, Adrianos E. F.
name: Dias, Marcelo A.
name: Budzik, Michal K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The subject of mechanical metamaterials has been gaining significant attention, however, their widespread application is still halted. Such materials are usually considered as stand-alone, vis-à-vis all characteristic length scales being associated solely with geometry of material itself. In this work we propose novel application of mechanical metamaterials as interface regions joining two materials with potential of replacing bulk adhesives. This idea leads into paradigm shifts for both metamaterials and adhesive joints. In specific, we outline methodology for testing and evaluating confined lattice materials within fracture mechanics framework. The theoretical and numerical approaches are inter-winded, revealing a set of critical parameters that needs to be considered during design process. Lattices that are stretching and bending dominated are explored and failure maps are proposed, indicating susceptibility to a certain failure mode depending on level of confinement and characteristic dimension of each lattice's unit cells.
Towards truly simultaneous PIXE and RBS analysis of layered objects in cultural heritage
Creators: name: Pascual-Izarra, C.
name: Barradas, N. P.
name: Reis, M. A.
name: Jeynes, C.
name: Menu, M.
name: Lavedrine, B.
name: Ezrati, J. J.
name: Röhrs, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For a long time, RBS and PIXE techniques have been used in the field of cultural heritage. Although the complementarity of both techniques has long been acknowledged, its full potential has not been yet developed due to the lack of general purpose software tools for analysing the data from both techniques in a coherent way. In this work we provide an example of how the recent addition of PIXE to the set of techniques supported by the DataFurnace code can significantly change this situation. We present a case in which a non homogeneous sample (an oxidized metal from a photographic plate -heliography- made by Niepce in 1827) is analysed using RBS and PIXE in a straightforward and powerful way that can only be performed with a code that treats both techniques simultaneously as a part of one single and coherent analysis. The optimization capabilities of DataFurnace, allowed us to obtain the composition profiles for these samples in a very simple way.
description: 9 pages, 3 figures
Automated Social Engineering Attacks in OSNs
Creators: name: Beznosov, Konstantin
name: Ripeanu, Matei
name: Boshmaf, Yazan
Publisher: name: Zenodo
Year: 2011
Subjects: Online Social Networks
Social Network Security
Social Engineering
Large-scale Infiltration

description: In this presentation, we outline the latest automated social engineering attacks in Online Social Networks (OSNs) such as Facebook. We review the techniques used by the adversaries and discuss the corresponding threat models. We then show a new attack where an adversary infiltrates a targeted OSN on a large scale. After that, we discuss the consequences of this attack and propose a socio-technical countermeasure, which enables the collaboration of security decisions among a circle of trusted friends.
Pierre Briant, Kings, Countries, Peoples: Selected Studies on the Achaemenid Empire, translated by Amélie Kuhrt
Creators: name: Klingenberg, Andreas
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Pierre Briant, Kings, Countries, Peoples: Selected Studies on the Achaemenid Empire, translated by Amélie Kuhrt. Oriens et Occidens Bd. 26. Stuttgart: Franz Steiner Verlag 2017, 633 S., 25 Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Feminist perspectives on group home care for sexually abused adolescent women : a case study of Phoenix House
Creators: name: Walton, Victoria Merryanne
Publisher: name: University of British Columbia
Year: 2010

description: Recent research about child sexual abuse has largely focussed on treatment with families or individuals. However, many sexually abused adolescents live in group homes. What kind of treatment do we provide for this population? Do traditional models of group home care adequately meet the particular needs of this population? This qualitative case study sought to examine the components of care of a group home for sexually abused female adolescents. Multiple sources of data were used from a variety of sources. This included nineteen interviews with residents, discharged residents, staff and referring agents, as well as observations and document analysis. This innovative model of group home care is essentially a feminist model of care based on mutual empowerment. The adolescents in this study described a process of feeling cared for, opening up and taking charge during their life at Phoenix House. The staff described three therapeutic tasks which meshed with the adolescent's themes; connecting, teaching and challenging. This model is in direct contrast with a model which replicates the abusive process. A ecological model is used as a framework to show how we replicate the abusive process on a variety of levels in our society. This research challenges our definitions of abuse, our attitudes about power, the nature of our relationships with adolescents, and the way we structure organizations.
Generalized Abelian Gauge Field Theory under Rotor Model
Creators: name: Wong, B. T. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gauge field theory with rank-one field $T_μ$ is a quantum field theory that describes the interaction of elementary spin-1 particles, of which being massless to preserve gauge symmetry. In this paper, we give a generalized, extended study of abelian gauge field theory under successive rotor model in general $D$-dimensional flat spacetime for spin-1 particles in the context of higher order derivatives. We establish a theorem that $n$ rotor contributes to the $\Box^n T^μ$ fields in the integration-by-parts formalism of the action. This corresponds to the transformation of gauge field $T^μ \rightarrow \Box^n T^μ$ and gauge field strength $G_{μν}\rightarrow \Box^n G_{μν} $ in the action. The $n=0$ case restores back to the standard abelian gauge field theory. The equation of motion and Noether's conserved current of the theory are also studied.
description: 17 pages, 0 figure. Accepted to publish on Mod. Phys. Lett. A
No interactions for a collection of spin-two fields intermediated by a massive Rarita-Schwinger field
Creators: name: Bizdadea, C.
name: Cioroianu, E. M.
name: Cornea, D.
name: Saliu, S. O.
name: Sararu, S. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The cross-couplings among several massless spin-two fields (described in the free limit by a sum of Pauli-Fierz actions) in the presence of a massive Rarita-Schwinger field are investigated in the framework of the deformation theory based on local BRST cohomology. Under the hypotheses of locality, smoothness of the interactions in the coupling constant, Poincare invariance, Lorentz covariance, and the preservation of the number of derivatives on each field, we prove that there are no consistent cross-interactions among different gravitons with a positively defined metric in internal space in the presence of a massive Rarita-Schwinger field. The basic features of the couplings between a single Pauli-Fierz field and a massive Rarita-Schwinger field are also emphasized.
description: 61 pages
Verdi: Quality Estimation and Error Detection for Bilingual Corpora
Creators: name: Zhao, Mingjun
name: Wu, Haijiang
name: Niu, Di
name: Wang, Zixuan
name: Wang, Xiaoli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Translation Quality Estimation is critical to reducing post-editing efforts in machine translation and to cross-lingual corpus cleaning. As a research problem, quality estimation (QE) aims to directly estimate the quality of translation in a given pair of source and target sentences, and highlight the words that need corrections, without referencing to golden translations. In this paper, we propose Verdi, a novel framework for word-level and sentence-level post-editing effort estimation for bilingual corpora. Verdi adopts two word predictors to enable diverse features to be extracted from a pair of sentences for subsequent quality estimation, including a transformer-based neural machine translation (NMT) model and a pre-trained cross-lingual language model (XLM). We exploit the symmetric nature of bilingual corpora and apply model-level dual learning in the NMT predictor, which handles a primal task and a dual task simultaneously with weight sharing, leading to stronger context prediction ability than single-direction NMT models. By taking advantage of the dual learning scheme, we further design a novel feature to directly encode the translated target information without relying on the source context. Extensive experiments conducted on WMT20 QE tasks demonstrate that our method beats the winner of the competition and outperforms other baseline methods by a great margin. We further use the sentence-level scores provided by Verdi to clean a parallel corpus and observe benefits on both model performance and training efficiency.
description: Accepted by The Web Conference 2021
Michelle L. Berenfeld, The Triconch House. Aphrodisias Bd. 11
Creators: name: Danner, Marcel
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Michelle L. Berenfeld, The Triconch House. Aphrodisias Bd. 11. Wiesbaden: Reichert 2019, 160 S., 148 s/w-Abb., 6 farb. Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Hawking Radiation and Covariant Anomalies
Creators: name: Banerjee, Rabin
name: Kulkarni, Shailesh
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Generalising the method of Wilczek and collaborators we provide a derivation of Hawking radiation from charged black holes using only covariant gauge and gravitational anomalies. The reliability and universality of the anomaly cancellation approach to Hawking radiation is also discussed.
description: Minor changes, conforms to published version
Sulphur abundances from the SI near-infrared triplet at 1045 nm
Creators: name: Caffau, Elisabetta
name: Faraggiana, Rosanna
name: Bonifacio, Piercarlo
name: Ludwig, Hans-G.
name: Steffen, Matthias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: context : Unlike silicon and calcium, sulphur is an alpha-element which does not form dust. Some of the available observations of the evolution of sulphur with metallicity indicate an increased scatter of sulphur to iron ratios at low metallicities or even a bimodal distribution, with some stars showing constant S/Fe at all metallicities and others showing an increasing S/Fe ratio with decreasing metallicity. In metal-poor stars SI lines of Multiplet 1 at 920 nm are not yet too weak to permit to measure the sulphur abundance A(S), however in ground-based observations they are severely affected by telluric lines. aims : We investigate the possibility to measure sulphur abundances from SI Mult. 3 at 1045 nm lines, which lie in the near infra-red. These are slightly weaker than those of Mult. 1, but lie in a range not affected by telluric lines. method We investigate the lines of Mult.3 in the Sun (G2V), Procyon (F5V), HD 33256 (F5V), HD 25069 (G9V) and epsilon Eri (HD 22049, K2V). For the Sun and Procyon the analysis has been performed with CO5BOLD 3D hydrodynamical model atmospheres, for the other three stars, for which hydrodynamical simulations are not available, the analysis has been performed using 1D model atmospheres. results For our sample of stars we find a global agreement of A(S) from lines of different multiplets. conclusions : Our results suggest that the infrared lines of Mult. 3 are a viable indicator of the sulphur abundance which, because of the intrinsic strength of this multiplet, should be suitable to study the trend of [S/Fe] at low metallicities.
Determining the full satellite population of a Milky Way-mass halo in a highly resolved cosmological hydrodynamic simulation
Creators: name: Grand, Robert J. J.
name: Marinacci, Federico
name: Pakmor, Rüdiger
name: Simpson, Christine M.
name: Kelly, Ashley J.
name: Gómez, Facundo A.
name: Jenkins, Adrian
name: Springel, Volker
name: Frenk, Carlos S.
name: White, Simon D. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the formation of the satellite galaxy population of a Milky Way-mass halo in a very highly resolved magneto-hydrodynamic cosmological zoom-in simulation (baryonic mass resolution $m_b =$ 800 $\rm M_{\odot}$). We show that the properties of the central star-forming galaxy, such as the radial stellar surface density profile and star formation history, are: i) robust to stochastic variations associated with the so-called ``Butterfly Effect''; and ii) well converged over 3.5 orders of magnitude in mass resolution. We find that there are approximately five times as many satellite galaxies at this high resolution compared to a standard ($m_b\sim 10^{4-5}\, \rm M_{\odot}$) resolution simulation of the same system. This is primarily because 2/3rds of the high resolution satellites do not form at standard resolution. A smaller fraction (1/6th) of the satellites present at high resolution form and disrupt at standard resolution; these objects are preferentially low-mass satellites on intermediate- to low-eccentricity orbits with impact parameters $\lesssim 30$ kpc. As a result, the radial distribution of satellites becomes substantially more centrally concentrated at higher resolution, in better agreement with recent observations of satellites around Milky Way-mass haloes. Finally, we show that our galaxy formation model successfully forms ultra-faint galaxies and reproduces the stellar velocity dispersion, half-light radii, and $V$-band luminosities of observed Milky Way and Local Group dwarf galaxies across 6 orders of magnitude in luminosity ($10^3$-$10^{9}$ $\rm L_{\odot}$).
description: accepted for publication in MNRAS. Main changes include new figure 4 and figure 11
The Horned Horse and Bow on Bronze Coins of Antiochus I Soter from Europos (Dura) in the Context of Early Seleucid Royal Ideology
Creators: name: Wójcikowski, Robert
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Spontaneous CP Violation and Horizontal Symmetry in the MSSM: Toward Lepton Flavor Naturalness
Creators: name: Aloni, Daniel
name: Asadi, Pouya
name: Nakai, Yuichiro
name: Reece, Matthew
name: Suzuki, Motoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the contributions of supersymmetric models with a $U(1)$ horizontal symmetry and only spontaneous CP breaking to various lepton flavor observables, such as $μ\to eγ$ and the electron electric dipole moment. We show that both a horizontal symmetry and a lack of explicit CP violation can alleviate the existing bounds from such observables. The undetermined $\mathcal{O}(1)$ coefficients in such mass matrix models muddle the interpretation of the bounds from various flavor observables. To overcome this, we define a new fine-tuning measure for different observables in such setups. This allows us to study how naturally the observed IR flavor observables can emerge from a given mass matrix model. We use our flavor-naturalness measure in study of our supersymmetric models and quantify the degree of fine tuning required by the bounds from various lepton flavor observables at each mass scale of sleptons, neutralinos, and charginos.
description: Minor changes to how random numbers are generated. Conclusions unchanged. Version published in JHEP. 31+18 Pages. 9 Figures. 6 Tables
"Black Star" or Astrophysical Black Hole?
Creators: name: Petrovay, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently wide publicity has been given to a claim by T. Vachaspati that "black holes do not exist", that the objects known as black holes in astrophysics should rather be called "black stars" and they not only do not have event horizons but actually can be the source of spectacular gamma ray bursts. In this short essay (no flimsier than the original preprint where these extravagant claims appeared) I demonstrate that these ill-considered claims are clearly wrong. Yet they present a good occasion to reflect on some well known but little discussed conceptual difficulties which arise when applying relativistic terminology in an astrophysical context.
description: Poster presented at "Compact Objects" meeting in Hunagshan, China, 2-7 July 2007. To be published in the AIP Conference Proceeding series
En el margen del manuscrito Città del Vaticano, BAV, Pal. lat. 973 (s. IX): fragmento acéfalo de un calendario lunar para la flebotomía
Creators: name: Ferraces-Rodríguez, Arsenio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Perceptions of privacy among residents in a long term care facility : a phenomenological approach
Creators: name: Stanbury, Janice Lillian
Publisher: name: University of British Columbia
Year: 2010

description: This study was designed to explore and describe elderly residents' perceptions of privacy in a long term care facility setting. Specifically, the researcher sought to identify and describe elderly residents' definitions of privacy, to identify the functions of privacy for the residents and to describe personal and physical factors in the institutional environment affecting privacy. A phenomenological methodology was chosen to guide the study involving four women and two men currently residing in a long term care facility. Data were obtained through unstructured interviews that were audio-taped and transcribed and then analyzed using the method of constant comparative analysis. Data analysis revealed that the residents were able to describe their perceptions of privacy in a long term care facility setting and identify their feelings and responses to perceived violation of desired privacy. Within the framework of the study's three major purposes, it was found that residents' definitions of privacy included the following themes: solitude, control of information access and disclosure and boundary control. The function component of privacy revealed a major theme of protected expression of self which encompassed the opportunity for expression of emotions, self-evaluation and intimacy in personal relations. Within the factors affecting the residents' ability to control privacy, residents perceived nursing care staffs attitudes and behaviours and availability of and access to private room accommodation as having significant impact. Throughout the participants' accounts, the ethical principle of autonomy was a central focus for the residents' perceptions of privacy in a long term care facility setting. The findings indicated that privacy is valued, protected and sought by long term care residents. They also suggested that nurses need to be aware of an individual client's need for privacy and understand that their behaviour and attitudes impact upon a client's ability to secure and maintain privacy. Based on these findings, implications for nursing practice, nursing education and nursing research are presented.
Pólya urn with memory kernel and asymptotic behaviours of autocorrelation function
Creators: name: Mori, Shintaro
name: Hisakado, Masato
name: Nakayama, Kazuaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Pólya urn is a stochastic process in which balls are randomly drawn from an urn of red and blue balls, and balls of the same color as the drawn balls are added. The probability of a ball of a certain color being drawn is equal to the percentage of balls of that color in the urn. We introduce arbitrary memory kernels to modify this probability. If the memory kernel decays exponentially, it is a stationary process and is mean-reverting. If the memory kernel decays by a power-law, a phase transition occurs and the asymptotic behavior of the autocorrelation function changes. An auxiliary field variable is introduced to transform the process Markovian and the field obeys a multivariate Ornstein-Uhlenbeck process. The exponents of the power law are estimated for the decay of the leading and subleading terms of the autocorrelation function. It is shown that the power law exponents changes discontinuously at the critical point.
description: 22 pages, 1 figure
Competition between unconventional superconductivity and incommensurate antiferromagnetic order in CeRh1-xCoxIn5
Creators: name: Ohira-Kawamura, S.
name: Shishido, H.
name: Yoshida, A.
name: Okazaki, R.
name: Kawano-Furukawa, H.
name: Shibauchi, T.
name: Harima, H.
name: Matsuda, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Elastic neutron diffraction measurements were performed on the quasi-two dimensional heavy fermion system CeRh1-xCoxIn5, ranging from an incommensurate antiferromagnet for low x to an unconventional superconductor on the Co-rich end of the phase diagram. We found that the superconductivity competes with the incommensurate antiferromagnetic (AFM) order characterized by qI=(1/2, 1/2, delta) with delta=0.298, while it coexists with the commensurate AFM order with qc=(1/2, 1/2, 1/2). This is in sharp contrast to the CeRh1-xIrxIn5 system, where both the commensurate and incommensurate magnetic orders coexist with the superconductivity. These results reveal that particular areas on the Fermi surface nested by qI play an active role in forming the superconducting state in CeCoIn5.
description: RevTeX4, 4 pages, 4 eps figures; corrected a typo and a reference
Quantum Dynamics of the Isotropic Universe in the Metric f(R) Gravity
Creators: name: De Angelis, Mariaveronica
name: Figurato, Laria
name: Montani, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse the canonical quantum dynamics of the isotropic universe, as emerging from the Hamiltonian formulation of a metric f(R) gravity, viewed in the Jordan frame. The canonical method of quantization is performed by solving the Hamiltonian constraint before quantizing and adopting like a relational time the non-minimally coupled scalar field emerging in the Jordan frame. The resulting Schröedinger evolution is then investigated both in the vacuum and in the presence of a massless scalar field, though as the kinetic component of an inflaton. We show that, in vacuum, the morphology of localized wave packets is that of a non-spreading profile up to the cosmological singularity. When the external scalar field is included into the dynamics, we see that the wave packets acquire the surprising feature of increasing localization of the universe volume, as it expands. This result suggests that in the metric f(R) formulation of gravity, a spontaneous mechanism arises for the universe classicization. Actually, when the phase space of the scalar field is fully explored, such an increasing localization in the Universe volume is valid up to a given value of the time, i.e. of the non-minimally coupled mode after which the wave packets spread again. We conclude our analysis by inferring that before this critical transition age is reached, the inflationary phase could take place, here modelled via a cosmological constant. This point of view provides an interesting scenario for the transition from a Planckian Universe to a classical de-Sitter phase, which in the f(R) gravity appears more natural than in the Einsteinian picture.
description: 9 pages, 6 figures
Politische Kompetenz im klassischen Athen: Überlegungen zu ihrer Diskursivierung in der zeitgenössischen Oratorik
Creators: name: Piepenbrink, Karen
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
title: In a Wonderland They Lie? Today’s Russia: A Testimony of the New Soviet Enthusiasm in the 1930s by A. Cesarec
Creators: name: Peruško Vindakijević, Ivana
Publisher: name: AvtobiografiЯ
Year: 2020

description: The question this article aims to pose based on the selected ego-document (Today’s Russia by A. Cesarec) is: does the paradigm of fear in the Stalin’s 1930s exclude the paradigm of enthusiasm? Have the memories of the horrors and fears of the Great Terror and the Gulag era erased the memory of the enthusiastic atmosphere and happiness of the Soviet ‘Golden Age’? Cesarec’s Today’s Russia evokes the same scepticism today, which, according to Kuromiya, Western historiography held towards Soviet memoirs on their exploits and successes in the 1930s, labelling them as ordinary Soviet propaganda, i.e. historically improbable material, ‘lakirovka’ or fraud. The main task of this article is to decipher, i.e. reconstruct, Cesarec’s image of the facts of the epoch – as Yuri Lotman put it in his book Within Thinking Worlds.
SUSY Unparticle and Conformal Sequestering
Creators: name: Nakayama, Yu
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate unparticle physics with supersymmetry (SUSY). The SUSY breaking effects due to the gravity mediation induce soft masses for the SUSY unparticles and hence break the conformal invariance. The unparticle physics observable in near future experiments is only consistent if the SUSY breaking effects from the hidden sector to the standard model sector are dominated by the gauge mediation, or if the SUSY breaking effects to the unparticle sector is sufficiently sequestered. We argue that the natural realization of the latter possibility is the conformal sequestering scenario.
description: 12 pages, v2: small comment added on conformal invariance vs scale invariance
INTEGRAL and Multiwavelength Observations of the Blazar Mrk 421 during an Active Phase
Creators: name: Lichti, G. G.
name: Bottacini, E.
name: Charlot, P.
name: Collmar, W.
name: Horan, D.
name: von Kienlin, A.
name: Laehteenmaeki, A.
name: Nilsson, K.
name: Petry, D.
name: Sillanpaeae, A.
name: Tornikoski, M.
name: Weekes, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A ToO observation of the TeV-emitting blazar Mrk 421 with INTEGRAL was triggered in June 2006 by an increase of the RXTE count rate to more than 30 mCrab. The source was then observed with all INTEGRAL instruments with the exception of the spectrometer SPI for a total exposure of 829 ks. During this time several outbursts were observed by IBIS and JEM-X. Multiwavelength observations were immediately triggered and the source was observed at radio, optical and X-ray wavelengths up to TeV energies. The data obtained during these observations are analysed with respect to spectral evolution and correlated variability. Preliminary results of the analysis are presented in this poster.
description: 2 pages, 3 figures; to appear in the Proc. of the First Int. GLAST Symp. (Stanford, Feb. 5-8, 2007), eds. S.Ritz, P.F.Michelson, and C.Meegan, AIP Conf. Proc
A new prescription for soft gluon resummation
Creators: name: Abbate, Riccardo
name: Forte, Stefano
name: Ridolfi, Giovanni
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new prescription for the resummation of the divergent series of perturbative corrections, due to soft gluon emission, to hard processes near threshold in perturbative QCD (threshold resummation). This prescription is based on Borel resummation, and contrary to the commonly used minimal prescription, it does not introduce a dependence of resummed physical observables on the kinematically unaccessible x->0 region of parton distributions. We compare results for resummed deep-inelastic scattering obtained using the Borel prescription and the minimal prescription and exploit the comparison to discuss the ambiguities related to the resummation procedure.
description: 15 pages, 3 figures. Final version, to be published in Phys. Lett. B. Several typos corrected (in particular eqs 26,41,53); fig. 3 added
Minimizing privilege for building HPC containers
Creators: name: Priedhorsky, Reid
name: Canon, R. Shane
name: Randles, Timothy
name: Younge, Andrew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: HPC centers face increasing demand for software flexibility, and there is growing consensus that Linux containers are a promising solution. However, existing container build solutions require root privileges and cannot be used directly on HPC resources. This limitation is compounded as supercomputer diversity expands and HPC architectures become more dissimilar from commodity computing resources. Our analysis suggests this problem can best be solved with low-privilege containers. We detail relevant Linux kernel features, propose a new taxonomy of container privilege, and compare two open-source implementations: mostly-unprivileged rootless Podman and fully-unprivileged Charliecloud. We demonstrate that low-privilege container build on HPC resources works now and will continue to improve, giving normal users a better workflow to securely and correctly build containers. Minimizing privilege in this way can improve HPC user and developer productivity as well as reduce support workload for exascale applications.
description: 12 pages, 11 figures. Revision 2: clarifications, corrections of some minor errors; revision 3: further clarifications and corrections
Crosstalk analysis for single-qubit and two-qubit gates in spin qubit arrays
Creators: name: Heinz, Irina
name: Burkard, Guido
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Scaling up spin qubit systems requires high-fidelity single-qubit and two-qubit gates. Gate fidelities exceeding $98\%$ were already demonstrated in silicon based single and double quantum dots, whereas for the realization of larger qubit arrays crosstalk effects on neighboring qubits must be taken into account. We analyze qubit fidelities impacted by crosstalk when performing single-qubit and two-qubit operations on neighbor qubits with a simple Heisenberg model. Furthermore we propose conditions for driving fields to robustly synchronize Rabi oscillations and avoid crosstalk effects. In our analysis we also consider next to nearest neighbor crosstalk and show that double synchronization leads to a restricted choice for the driving field strength, exchange interaction, and thus gate time. Considering realistic experimental conditions we propose a set of parameter values to perform a nearly crosstalk-free CNOT gate and so open up the pathway to scalable quantum computing devices.
description: 9 pages, 8 figures
Unfolding of differential energy spectra in the MAGIC experiment
Creators: name: The MAGIC Collaboration
name: Albert, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The paper describes the different methods, used in the MAGIC experiment, to unfold experimental energy distributions of cosmic ray particles (gamma-rays). Questions and problems related to the unfolding are discussed. Various procedures are proposed which can help to make the unfolding robust and reliable. The different methods and procedures are implemented in the MAGIC software and are used in most of the analyses.
description: Submitted to NIM A
Colostomy patients' identification of learning needs in the early rehabilitation period
Creators: name: Bain Keirstead, Gail Sandra
Publisher: name: University of British Columbia
Year: 2010

description: The creation of a permanent colostomy has implications for the physical and psychosocial wellbeing of the individual. Studies reviewed have suggested that effective patient teaching is a way of assisting individuals to develop coping strategies to manage the physical changes in the body and patterns of social and emotional interaction. This descriptive study is based on the theory that the adult is able to self-diagnose learning needs and actively participate in the planning of learning to meet these needs. Data were collected and analyzed to identify the learning needs and resource utilization of patients with a newly created permanent colostomy from their perspective. Patient interviews were conducted with eight participants ten to twenty-one days postdischarge from hospital, using a semistructured interview guide developed by the researcher. Findings of the study suggested that participants were able to self-define the knowledge and skills that allowed them to develop positive coping behaviors to manage their newly created permanent colostomy. Themes which emerged from the data collected were the need to get on with life, the person's need to tell "their story" to reinforce their individuality, and the need to develop mastery over the physical aspects of stoma care.
A Foucaultian View on the Modes of Governance in the Neo-Assyrian Empire: The Good Shepherd
Creators: name: Portuese, Ludovico
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Optimizing Re-Evaluation of Malware Distribution Networks
Creators: name: Zeeuwen, Kyle
Publisher: name: Zenodo
Year: 2011
Subjects: malware distribution networks
adversarial blacklisting
honeyclient
scareware
fake antivirus
neveragain

description: The retrieval and analysis of malicious content is an essential task for security researchers. Security labs use automated HTTP clients known as client honeypots to visit hundreds of thousands of suspicious URLs daily. The dynamic nature of malware distribution networks necessitate periodic re-evaluation of a subset of the confirmed malicious sites, which introduces two problems: 1) the number of URLs requiring re-evaluation exhaust available resources, and 2) repeated evaluation exposes the system to adversarial blacklisting, which affects the accuracy of the content collected. To address these problems, I propose optimizations to the re-evaluation logic that reduce the number of re-evaluations while maintaining a constant sample discovery rate during URLs re-evaluation. I study these problems in two adversarial scenarios: 1) monitoring malware repositories where no provenance is available, and 2) monitoring Fake Anti-Virus (AV) distribution networks. I perform a study of the adversary by repeatedly downloading content from the distribution networks. This re- veals trends in the update patterns and lifetimes of the distribution sites and malicious executa- bles. Using these observations I propose optimizations to reduce the amount of re-evaluations necessary to maintain a high malicious sample discovery rate. In the first scenario the proposed techniques, when evaluated versus a fixed interval scheduler, are shown to reduce the number of re-evaluations by 80-93% (assuming a re-evaluation interval of 1 hour to 1 day) with a corresponding impact on sample discovery rate of only 2-7% percent. In the second scenario, optimizations proposed are shown to reduce fetch volume by orders of magnitude and, more importantly, reduce the likelihood of blacklisting. During direct evaluation of malware repositories I observe multiple instances of blacklisting, but on the whole, less than 1% of the repositories studied show evidence of blacklisting. Fake AV dis- tribution networks actively blacklist IPs; I encountered repeated occurrences of IP blacklisting while monitoring Fake AV distribution networks.
Chiral Asymmetry from a 5D Higgs Mechanism
Creators: name: Salvio, A.
name: Shaposhnikov, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An intriguing feature of the Standard Model is that the representations of the unbroken gauge symmetries are vector-like whereas those of the spontaneously broken gauge symmetries are chiral. Here we provide a toy model which shows that a natural explanation of this property could emerge in higher dimensional field theories and discuss the difficulties that arise in the attempt to construct a realistic theory. An interesting aspect of this type of models is that the 4D low energy effective theory is not generically gauge invariant. However, the non-invariant contributions to the observable quantities are very small, of the order of the square of the ratio between the light particle mass scale and the Kaluza-Klein mass scale. Remarkably, when we take the unbroken limit both the chiral asymmetry and the non-invariant terms disappear.
description: 30 pages, 5 figures, uses axodraw.sty. Extended version, matches the article published on JHEP
title: Мемуарно-автобиографическое письмо Ольги Берггольц в дневниковых записях о блокаде
Creators: name: Deotto, Patrizia
Publisher: name: AvtobiografiЯ
Year: 2020

description: Berggol’c’s diary written between July 1939 and the years of the war and the siege not only is an extraordinary testimony of a tragic moment in the history of Leningrad, but it is also an interesting exposure through the use of the written word of the most secret and unspeakable thoughts on the present and the recent past, in the light of the writer’s personal experiences. The author is intimately divided between the need to tell the truth about herself and the surrounding world on one hand, and the sentiment of disquiet resulting from the pressure of the official censorship, but also due to a sort of self-censure stemming from the fear to write about her own emotions and thoughts on the other hand. The act of writing, implies going once again through the pain and the sorrow that may be triggered in the process and admitting to herself a deep disenchantment with what she had believed in. Despite all this, however, Ol’ga Berggol’c embarks on a difficult path towards awareness, on the quest of an individual truth, which is in contrast with the official truth of the regime.
Probing the Nuclear Symmetry Energy with Heavy-Ion Reactions Induced by Neutron-Rich Nuclei
Creators: name: Chen, Lie-Wen
name: Ko, Che Ming
name: Li, Bao-An
name: Yong, Gao-Chan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Heavy-ion reactions induced by neutron-rich nuclei provide a unique means to investigate the equation of state of isospin-asymmetric nuclear matter, especially the density dependence of the nuclear symmetry energy. In particular, recent analyses of the isospin diffusion data in heavy-ion reactions have already put a stringent constraint on the nuclear symmetry energy around the nuclear matter saturation density. We review this exciting result and discuss its implications on nuclear effective interactions and the neutron skin thickness of heavy nuclei. In addition, we also review the theoretical progress on probing the high density behaviors of the nuclear symmetry energy in heavy-ion reactions induced by high energy radioactive beams.
description: 29 pages, 35 figures. Invited review article for Frontiers of Physics in China