cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
From active stresses and forces to self propulsion of droplets
Creators: name: Kree, R.
name: Burada, P. S.
name: Zippelius, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the self-propulsion of spherical droplets as simplified hydrodynamic models of swimming microorganisms or artificial microswimmers. In contrast to approaches, which start from active velocity fields produced by the system, we consider active surface force or body force densities or active stresses as the origin of autonomous swimming. For negligible Reynolds number and given activity we first calculate the external and the internal ow fields as well as the center of mass velocity and an angular velocity of the droplet at fixed time. To construct trajectories from single time snapshots, the evolution of active forces or stresses must be determined in the laboratory frame. Here, we consider the case of active matter, which is carried by a continuously distributed, rigid but sparse (cyto)-sceleton that is immersed in the droplet's interior. We calculate examples of trajectories of a droplet and its sceleton from force densities or stresses, which may be explicitely time dependent in a frame fixed within the sceleton
The magnetic sensitivity of the Mg ii k line to the joint action of Hanle, Zeeman and magneto-optical effects
Creators: name: Ballester, Ernest Alsina
name: Belluzzi, Luca
name: Bueno, Javier Trujillo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We highlight the main results of a radiative transfer investigation on the magnetic sensitivity of the solar Mg ii k resonance line at 2795.5 angstrom, accounting for the joint action of the Hanle and Zeeman effects as well as partial frequency redistribution (PRD) phenomena. We confirm that at the line center, the linear polarization signals produced by scattering processes are measurable, and that they are sensitive, via the Hanle effect, to magnetic fields with strengths between 5 and 50 G, approximately. We also show that the Zeeman effect produces conspicuous circular polarization signals, especially for longitudinal fields stronger than 50 G, which can be used to estimate the magnetization of the solar chromosphere via the familiar magnetograph formula. The most novel result is that magneto-optical effects produce, in the wings of the line, a decrease of the Q/I scattering polarization pattern and the appearance of U/I signals (i.e., a rotation of the plane of linear polarization). This sensitivity of the Q/I and U/I wing signals to both weak (around 5 G) and stronger magnetic fields expands the scientific interest of the Mg ii k line for probing the chromosphere in quiet and active regions of the Sun
description: Accepted for publication in The Astrophysical Journal Letters (submitted on July 21, 2016)
A multi-resolution model to capture both global fluctuations of an enzyme and molecular recognition in the ligand-binding site
Creators: name: Fogarty, Aoife C.
name: Potestio, Raffaello
name: Kremer, Kurt
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In multi-resolution simulations, different system components are simultaneously modelled at different levels of resolution, these being smoothly coupled together. In the case of enzyme systems, computationally expensive atomistic detail is needed in the active site to capture the chemistry of substrate binding. Global properties of the rest of the protein also play an essential role, determining the structure and fluctuations of the binding site; however, these can be modelled on a coarser level. Similarly, in the most computationally efficient scheme only the solvent hydrating the active site requires atomistic detail. We present a methodology to couple atomistic and coarse-grained protein models, while solvating the atomistic part of the protein in atomistic water. This allows a free choice of which protein and solvent degrees of freedom to include atomistically, without loss of accuracy in the atomistic description. This multi-resolution methodology can successfully model stable ligand binding, and we further confirm its validity via an exploration of system properties relevant to enzymatic function. In addition to a computational speedup, such an approach can allow the identification of the essential degrees of freedom playing a role in a given process, potentially yielding new insights into biomolecular function.
Using Multi-Viewpoint Contracts for Negotiation of Embedded Software Updates
Creators: name: Holthusen, Sönke
name: Quinton, Sophie
name: Schaefer, Ina
name: Schlatow, Johannes
name: Wegner, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.4

description: In this paper we address the issue of change after deployment in safety-critical embedded system applications. Our goal is to substitute lab-based verification with in-field formal analysis to determine whether an update may be safely applied. This is challenging because it requires an automated process able to handle multiple viewpoints such as functional correctness, timing, etc. For this purpose, we propose an original methodology for contract-based negotiation of software updates. The use of contracts allows us to cleanly split the verification effort between the lab and the field. In addition, we show how to rely on existing viewpoint-specific methods for update negotiation. We illustrate our approach on a concrete example inspired by the automotive domain.
description: In Proceedings PrePost 2016, arXiv:1605.08096
Water vapour induced reversible switching between a 1-D coordination polymer and a 0-D aqua complex
Creators: name: Deng, Min
name: Mukherjee, Soumya
name: Liang, Yu-Jie
name: Fang, Xiao-Dan
name: Zhu, Ai-Xin
name: ZAWOROTKO, MICHAEL
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Chemical sciences
subject: FOS: Chemical sciences

description: [Zn(3-tba)2], 1, a 1-D coordination polymer synthesised as 1 DMA, 1α, transformed to a nonporous form, 1β, upon activation. 1β underwent further transformation to the dimeric complex [Zn(3-tba)2(H2O)2], 2, above 40% RH. The reverse transformations, 2 to 1β and 1β to 1α, were accomplished by heating and exposure to DMA, respectively, and were single-crystal-to-single-crystal phase changes. Single crystal X-ray diffraction revealed that the second transformation resulted from Zn–carboxylate bond breakage and concomitant coordination of water molecules. Other solvent molecules did not induce a phase change
Monitoring Assumptions in Assume-Guarantee Contracts
Creators: name: Sokolsky, Oleg
name: Zhang, Teng
name: Lee, Insup
name: McDougall, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Pre-deployment verification of software components with respect to behavioral specifications in the assume-guarantee form does not, in general, guarantee absence of errors at run time. This is because assumptions about the environment cannot be discharged until the environment is fixed. An intuitive approach is to complement pre-deployment verification of guarantees, up to the assumptions, with post-deployment monitoring of environment behavior to check that the assumptions are satisfied at run time. Such a monitor is typically implemented by instrumenting the application code of the component. An additional challenge for the monitoring step is that environment behaviors are typically obtained through an I/O library, which may alter the component's view of the input format. This transformation requires us to introduce a second pre-deployment verification step to ensure that alarms raised by the monitor would indeed correspond to violations of the environment assumptions. In this paper, we describe an approach for constructing monitors and verifying them against the component assumption. We also discuss limitations of instrumentation-based monitoring and potential ways to overcome it.
description: In Proceedings PrePost 2016, arXiv:1605.08096
Holographic Rényi entropy for two-dimensional $\mathcal{N}$=(2,2) superconformal field theory
Creators: name: Li, Zhibin
name: Zhang, Jia-ju
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the holographic Rényi entropy for two-dimensional $\mathcal N=(2,2)$ superconformal field theory (SCFT), which is dual to $\mathcal N=2$ supergravity in AdS$_3$ background. In SCFT we have the stress tensor, current, and their supersymmetric partners, and in supergravity we have the graviton, vector field, and two gravitinos. We get the Rényi mutual information of two short intervals on complex plane in expansion by the cross ratio $x$ to order $x^4$, and Rényi entropy of one interval on torus in expansion by $q=\exp(-2πβ/L)$, with $β$ being the inverse temperature and $L$ being the spatial period, to order $q^2$. We calculate in both the supergravity and SCFT sides, and find matches of the results.
description: 14 pages
Strategies for Finding Prompt Radio Counterparts to Gravitational Wave Transients with the Murchison Widefield Array
Creators: name: Kaplan, D. L.
name: Murphy, T.
name: Rowlinson, A.
name: Croft, S. D.
name: Wayth, R. B.
name: Trott, C. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present and evaluate several strategies to search for prompt, low-frequency radio emission associated with gravitational wave transients using the Murchison Widefield Array (MWA). As we are able to repoint the MWA on timescales of tens of seconds, we can search for the dispersed radio signal that has been predicted to originate along with or shortly after a neutron star-neutron star merger. We find that given the large, 600 deg^2 instantaneous field-of-view of the MWA we can cover a significant fraction of the predicted gravitational wave error region, although due to the complicated geometry of the latter we only cover >50% of the error region for approximately 5% of events, and roughly 15% of events will be located <10 deg from the MWA pointing center such that they will be covered in the radio images. For optimal conditions our limiting flux density for a 10-s long transient would be 0.1 Jy, increasing to about 1 Jy for a wider range of events. This corresponds to luminosity limits of 1e38-1e39 erg/s based on expectations for the distances of the gravitational wave transients, which should be sufficient to detect or significantly constrain a range of models for prompt emission.
description: 9 pages, 5 figures. Accepted for publication in PASA
Preliminary Results Towards Contract Monitorability
Creators: name: Vella, Annalizz
name: Francalanza, Adrian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This paper discusses preliminary investigations on the monitorability of contracts for web service descriptions. There are settings where servers do not guarantee statically whether they satisfy some specified contract, which forces the client (i.e., the entity interacting with the server) to perform dynamic checks. This scenario may be viewed as an instance of Runtime Verification, where a pertinent question is whether contracts can be monitored for adequately at runtime, otherwise stated as the monitorability of contracts. We consider a simple language of finitary contracts describing both clients and servers, and develop a formal framework that describes server contract monitoring. We define monitor properties that potentially contribute towards a comprehensive notion of contract monitorability and show that our simple contract language satisfies these properties.
description: In Proceedings PrePost 2016, arXiv:1605.08096
Distributionally Robust Games with Risk-averse Players
Creators: name: Loizou, Nicolas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We present a new model of incomplete information games without private information in which the players use a distributionally robust optimization approach to cope with the payoff uncertainty. With some specific restrictions, we show that our "Distributionally Robust Game" constitutes a true generalization of three popular finite games. These are the Complete Information Games, Bayesian Games and Robust Games. Subsequently, we prove that the set of equilibria of an arbitrary distributionally robust game with specified ambiguity set can be computed as the component-wise projection of the solution set of a multi-linear system of equations and inequalities. For special cases of such games we show equivalence to complete information finite games (Nash Games) with the same number of players and same action spaces. Thus, when our game falls within these special cases one can simply solve the corresponding Nash Game. Finally, we demonstrate the applicability of our new model of games and highlight its importance.
description: 11 pages, 3 figures, Proceedings of 5th the International Conference on Operations Research and Enterprise Systems ({ICORES} 2016), Rome, Italy, February 23-25, 2016
Phase Transition in IrTe$_2$ induced by spin-orbit coupling
Creators: name: Koley, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: IrTe$_2$ has been renewed as an interesting system showing competing phenomenon between a questionable density-wave transition near 270 K followed by superconductivity with doping of high atomic number materials. Higher atomic numbers of Te and Ir supports strong spin-orbital coupling in this system. Using dynamical mean field theory with LDA band structure I have introduced Rashba spin orbit coupling in this system to get the interpretation for anomalous resistivity and related transition in this system. While no considerable changes are observed in DMFT results of Ir-5d band other than orbital selective pseudogap pinned to Fermi level, Te-p band shows a van Hove singularity at the Fermi level except low temperature. Finally I discuss the implications of these results in theoretical understanding of ordering in IrTe$_2$.
description: 7 pages, 9 figures
Cognitive Biases in Transdiagnostic Psychiatric Disorders: Systematic Review and Meta-Analysis Protocol
Creators: name: Lavigne, Katie
name: Raucher-Chéné, Delphine
name: Sauve, Genevieve
name: Lepage, Martin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Mental Disorders
subject: Clinical Psychology
subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Cognitive Psychology
subject: Cognition and Perception
subject: Behavior and Behavior Mechanisms
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Psychological Phenomena and Processes
subject: cognitive bias
subject: mental disorders
subject: mental illness
subject: reasoning bias
subject: transdiagnostic

description: Systematic review and meta-analysis on the presence and specificity of cognitive biases in transdiagnostic psychiatric disorders
AESI Case Definition Companion Guide: Spontaneous Abortion and Ectopic Pregnancy
Creators: name: Kochhar, Sonali
name: Law, Barbara
Publisher: name: Zenodo
Year: 2023
Subjects: Spontaneous Abortion
risk factors
Ectopic pregnancy
Gestational age
Brighton case definition
background rates
ICD-9-CM
ICD-10-CM
MedDRA
SNOMED
case definition level of certainty

description: This document collates into a single document the SPEAC Spontaneous Abortion and Ectopic Pregnancy resources, including the ICD9/10-CM, MedDRA and SNOMED codes , background rates, risk factors, guidance (real time investigation, data collection, analysis and presentation) and tools (data abstraction & interpretation form, tabular summary of key case definition criteria, algorithm for level of certainty determination, glossary and pictorial level of certainty algorithm).This guide can be used by stakeholders to assess the occurrence of Spontaneous Abortion and Ectopic Pregnancy in several settings including as an adverse event following immunization.
description: The SPEAC project was funded in whole by CEPI.
High Current Density 2D/3D Esaki Tunnel Diodes
Creators: name: Krishnamoorthy, Sriram
name: Lee, Edwin W.
name: Lee, Choong Hee
name: Zhang, Yuewei
name: McCulloch, William D.
name: Johnson, Jared M.
name: Hwang, Jinwoo
name: Wu, Yiying
name: Rajan, Siddharth
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The integration of two-dimensional materials such as transition metal dichalcogenides with bulk semiconductors offer interesting opportunities for 2D/3D heterojunction-based novel device structures without any constraints of lattice matching. By exploiting the favorable band alignment at the GaN/MoS2 heterojunction, an Esaki interband tunnel diode is demonstrated by transferring large area, Nb-doped, p-type MoS2 onto heavily n-doped GaN. A peak current density of 446 A/cm2 with repeatable room temperature negative differential resistance, peak to valley current ratio of 1.2, and minimal hysteresis was measured in the MoS2/GaN non-epitaxial tunnel diode. A high current density of 1 kA/cm2 was measured in the Zener mode (reverse bias) at -1 V bias. The GaN/MoS2 tunnel junction was also modeled by treating MoS2 as a bulk semiconductor, and the electrostatics at the 2D/3D interface was found to be crucial in explaining the experimentally observed device characteristics.
Miuz: measuring the impact of disconnecting a node
Creators: name: Bachmann, Ivana
name: Reyes, Patricio
name: Silva, Alonso
name: Bustos-Jiménez, Javier
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this article we present Miuz, a robustness index for complex networks. Miuz measures the impact of disconnecting a node from the network while comparing the sizes of the remaining connected components. Strictly speaking, Miuz for a node is defined as the inverse of the size of the largest connected component divided by the sum of the sizes of the remaining ones. We tested our index in attack strategies where the nodes are disconnected in decreasing order of a specified metric. We considered Miuz and other well-known centrality measures such as betweenness, degree , and harmonic centrality. All of these metrics were compared regarding the behavior of the robust-ness (R-index) during the attacks. In an attempt to simulate the internet backbone, the attacks were performed in complex networks with power-law degree distributions (scale-free networks). Preliminary results show that attacks based on disconnecting a few number of nodes Miuz are more dangerous (decreasing the robustness) than the same attacks based on other centrality measures. We believe that Miuz, as well as other measures based on the size of the largest connected component, provides a good addition to other robustness metrics for complex networks.
description: in 34th International Conference of the Chilean Computer Science Society (SCCC), Nov 2015, Santiago, Chile. 2015. arXiv admin note: substantial text overlap with arXiv:1601.02465
Generalized gradient expansion for inhomogeneous dynamical mean-field theory: Application to ultracold atoms in a harmonic trap
Creators: name: Freericks, J. K.
name: Han, Shuyang
name: Mikelsons, Karlis
name: Krishnamurthy, H. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a generalized gradient expansion of the inhomogeneous dynamical mean-field theory method for determining properties of ultracold atoms in a trap. This approach goes beyond the well-known local density approximation and at higher temperatures, in the normal phase, it shows why the local density approximation works so well, since the local density and generalized gradient approximations are essentially indistinguishable from each other (and from the exact solution within full inhomogeneous dynamical mean-field theory). But because the generalized gradient expansion only involves nearest-neighbor corrections, it does not work as well at low temperatures, when the systems enter into ordered phases. This is primarily due to the problem that ordered phases often satisfy some global constraints which determine the spatial ordering pattern, and the local density and generalized gradient approximations are not able to impose those kinds of constraints; they also overestimate the tendency to order. The theory is applied to phase separation of different mass fermionic mixtures represented by the Falicov-Kimball model and to determining the entropy per particle of a fermionic system represented by the Hubbard model. The generalized gradient approximation is a useful diagnostic for the accuracy of the local density approximation---when both methods agree, they are likely accurate, when they disagree, neither is likely to be correct.
description: (14 pages, 6 figures, submitted to Phys. Rev. A)
A field theory approach to the evolution of canonical helicity and energy
Creators: name: You, Setthivoine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A redefinition of the Lagrangian of a multi-particle system in fields reformulates the single-particle, kinetic, and fluid equations governing fluid and plasma dynamics as a single set of generalized Maxwell's equations and Ohm's law for canonical force-fields. The Lagrangian includes new terms representing the coupling between the motion of particle distributions, between distributions and electromagnetic fields, with relativistic contributions. The formulation shows that the concepts of self-organization and canonical helicity transport are applicable across single-particle, kinetic, and fluid regimes, at classical and relativistic scales. The theory gives the basis for comparing canonical helicity change to energy change in general systems. For example, in a fixed, isolated system subject to non-conservative forces, a species' canonical helicity changes less than total energy only if gradients in density or distribution function are shallow.
description: In print, accepted by Phys. Plasmas
Self-dual solitons in a $CPT$-odd and Lorentz-violating gauged $O(3)$ sigma model
Creators: name: Casana, R.
name: Farias, C. F.
name: Ferreira, M. M.
name: Lazar, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have performed a complete study of self-dual configurations in a $CPT$-odd and Lorentz-violating gauged $O(3)$ nonlinear sigma model. We have consistently implemented the Bogomol'nyi-Prasad-Sommerfield (BPS) formalism and obtained the correspondent differential first-order equations describing electrically charged self-dual configurations. The total energy and magnetic flux of the vortices, besides being proportional to the winding number, also depend explicitly on the Lorentz-violating coefficients belonging to the sigma sector. The total electrical charge is proportional to the magnetic flux such as it occurs in Chern-Simons models. The Lorentz violation in the sigma sector allows one to interpolate between Lorentz-violating versions of some sigma models: the gauged $O(3)$ sigma model and the Maxwell-Chern-Simons $O(3)$ sigma model. The Lorentz violation enhances the amplitude of the magnetic field and BPS energy density near the origin, augmenting the deviation in relation to the solutions deprived of Lorentz violation.
description: two columns, 9 pages, final and revised version published in Physical Review D
RoboPol: The optical polarization of gamma-ray--loud and gamma-ray--quiet blazars
Creators: name: Angelakis, E.
name: Hovatta, T.
name: Blinov, D.
name: Pavlidou, V.
name: Kiehlmann, S.
name: Myserlis, I.
name: Boettcher, M.
name: Mao, P.
name: Panopoulou, G. V.
name: Liodakis, I.
name: King, O. G.
name: Balokovic, M.
name: Kus, A.
name: Kylafis, N.
name: Mahabal, A.
name: Marecki, A.
name: Paleologou, E.
name: Papadakis, I.
name: Papamastorakis, I.
name: Pazderski, E.
name: Pearson, T. J.
name: Prabhudesai, S.
name: Ramaprakash, A. N.
name: Readhead, A. C. S.
name: Reig, P.
name: Tassis, K.
name: Urry, M.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present average R-band optopolarimetric data, as well as variability parameters, from the first and second RoboPol observing season. We investigate whether gamma- ray--loud and gamma-ray--quiet blazars exhibit systematic differences in their optical polarization properties. We find that gamma-ray--loud blazars have a systematically higher polarization fraction (0.092) than gamma-ray--quiet blazars (0.031), with the hypothesis of the two samples being drawn from the same distribution of polarization fractions being rejected at the 3σ level. We have not found any evidence that this discrepancy is related to differences in the redshift distribution, rest-frame R-band lu- minosity density, or the source classification. The median polarization fraction versus synchrotron-peak-frequency plot shows an envelope implying that high synchrotron- peaked sources have a smaller range of median polarization fractions concentrated around lower values. Our gamma-ray--quiet sources show similar median polarization fractions although they are all low synchrotron-peaked. We also find that the random- ness of the polarization angle depends on the synchrotron peak frequency. For high synchrotron-peaked sources it tends to concentrate around preferred directions while for low synchrotron-peaked sources it is more variable and less likely to have a pre- ferred direction. We propose a scenario which mediates efficient particle acceleration in shocks and increases the helical B-field component immediately downstream of the shock.
description: 17 pages, 16 figures, 5 tables; Accepted for publication in the MNRAS
CLS INFRA D5.2 Case Studies in Data Preparation and Sharing
Creators: name: Mrugalski, Michał
name: Blietz, Annika
name: Börner, Ingo
name: Bauer, Elisabeth
name: Charvat, Vera
name: Ďurčo, Matej
name: Laszakovits, Sabine
name: Resch, Stefan
Publisher: name: Zenodo
Year: 2023
Subjects: data lanscape, literary text collections, corpus architecture, topology of corpora, FAIR principles, surprisal

description: This deliverable presents three case studies involving digitisation and transformation processes; the studies are presented in order of the complexity of the research question, which is reflected in the difficulty of the corpus compilation task. Transformation processes seem to be inevitable in each case, but paradoxically the urgency of digitisation diminishes as the complexity of a task increases, The case studies described in this deliverable are: 1. Creation of an ELTeC affine corpus of the Slovak novel (chapter 2) 2. Finding the haiku across multilingual corpora (chapter 3) 3. Measuring entropy and surprisal in the prose of the Tsarist Empire Devoted to Terrorism (Russian and Polish Texts) (chapter 4) The first two case studies have already served as reference cases for the data landscape review (CLS INFRA Deliverable 5.1). This extended version, which conveys the experience of six months of research and is enriched by the third case study, highlights specific aspects of the multidimensional landscape of literary text collections. In Deliverable 5.1, they were merely illustrations and concretisations of general points; now they are the focus of attention. The third case has been designed with the most complex research questions in mind, to go even further in exploring what is available and what is possible in the digital humanities today.
Productive Interactions: heavy particles and non-Gaussianity
Creators: name: Flauger, Raphael
name: Mirbabayi, Mehrdad
name: Senatore, Leonardo
name: Silverstein, Eva
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze the shape and amplitude of oscillatory features in the primordial power spectrum and non-Gaussianity induced by periodic production of heavy degrees of freedom coupled to the inflaton $ϕ$. We find that non-adiabatic production of particles can contribute effects which are detectable or constrainable using cosmological data even if their time-dependent masses are always heavier than the scale $\dot ϕ^{1/2}$, much larger than the Hubble scale. This provides a new role for UV completion, consistent with the criteria from effective field theory for when heavy fields cannot be integrated out. This analysis is motivated in part by the structure of axion monodromy, and leads to an additional oscillatory signature in a subset of its parameter space. At the level of a quantum field theory model that we analyze in detail, the effect arises consistently with radiative stability for an interesting window of couplings up to of order $\lesssim 1$. The amplitude of the bispectrum and higher-point functions can be larger than that for Resonant Non-Gaussianity, and its signal/noise may be comparable to that of the corresponding oscillations in the power spectrum (and even somewhat larger within a controlled regime of parameters). Its shape is distinct from previously analyzed templates, but was partly motivated by the oscillatory equilateral searches performed recently by the {\it Planck} collaboration. We also make some general comments about the challenges involved in making a systematic study of primordial non-Gaussianity.
description: 55 pages, 5 figures
Shape and coarsening dynamics of strained islands
Creators: name: Schifani, Guido
name: Frisch, Thomas
name: Argentina, Mederic
name: Aqua, Jean-Noël
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate the formation and the coarsening dynamics of islands in a strained epitaxial semi-conductor film. These islands are commonly observed in thin films undergoing a morphological instability due to the presence of the elasto capillary effect. We first describe both analytically and numerically the formation of an equilibrium island using a two dimensional continuous model. We have found that these equilibrium island-like solutions have a maximum height $h_0$ and they sit on top of a flat wetting layer with a thickness $h_w$. We then consider two islands and we report that they undergo a non-interrupted coarsening that follows a two stage dynamics. The first stage may be depicted by a quasi-static dynamics, where the mass transfers are proportional to the chemical potential difference of the islands. It is associated with a time scale $t_c$ that is function of the distance $d$ between the islands, and leads to the shrinkage of the smallest island. Once its height becomes smaller than a minimal equilibrium height $h_{0}^{*}$, its mass spreads over the entire system. Our results pave the way for a future analysis of coarsening of an assembly of islands.
Investigation On Multi-parameter Of Hydrate-bearing Sediment During Hydrate Replacement Process: A In-situ X-ray Computed Tomography Study
Creators: name: Li, Yanghui
name: Huang, Lei
name: Wu, Peng
name: Wang, Yunhui
name: Liu, Tao
name: Wang, Haijun
name: Song, Yongchen
Publisher: name: Zenodo
Year: 2023

description: Dataset S1.Dataset S1 is uploaded with name “Dataset S1-plane porosity, plane hydrate saturation and fractal dimension.xlsx”. Detailed information includes plane porosity, plane hydrate saturation, and fractal dimension for hydrate-bearing sediment specimen (Figure Dataset S2. Dataset S2 is uploaded with name “Dataset S2-spherical degree and number of hydrate particles.xlsx”. Detailed information includes spherical degree and number of hydrate particles for hydrate-bearing sediment specimen (Figure 5). Dataset S3 is uploaded with name “Dataset S3-tortuosity and absolute permeability.xlsx”. Detailed information includes tortuosity and absolute permeability for hydrate-bearing sediment specimen (Figure 9). Movie S1 is uploaded with name “Movie S1.gif”. Detailed information includes longitudinal cross-sectional X-ray CT images of the specimen during replacement. Movie S2 is uploaded with name “Movie S2.gif”. Detailed information includes 0-slice cross-sectional X-ray CT images of the specimen during replacement. Movie S3 is uploaded with name “Movie S3.gif”. Detailed information includes 176-slice cross-sectional X-ray CT images of the specimen during replacement. Movie S4 is uploaded with name “Movie S4.gif”. Detailed information includes 351-slice cross-sectional X-ray CT images of the specimen during replacement. Movie S5 is uploaded with name “Movie S5.gif”. Detailed information includes 526-slice cross-sectional X-ray CT images of the specimen during replacement. Movie S6 is uploaded with name “Movie S6.gif”. Detailed information includes 701-slice cross-sectional X-ray CT images of the specimen during replacement.
On accelerants and their analogs, and on the characterization of the rectangular Weyl functions for Dirac systems with locally square-integrable potentials on a semi-axis
Creators: name: Sakhnovich, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Spectral Theory (math.SP)
subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 34B20, 34L40, 34A55, 47A48

description: We characterize the set of rectangular Weyl matrix functions corresponding to Dirac systems with locally square-integrable potentials on a semi-axis and demonstrate a new way to recover the locally square-integrable potential from the Weyl function. Important interconnections between our approach and accelerants of convolution operators are discussed as well.
description: The paper is a continuation of arXiv:1401.3605 and contains also generalizations of some results from arXiv:1106.1263
Discontinuous transitions in globally coupled potential systems with additive noise
Creators: name: Kürsten, Rüdiger
name: Behn, Ulrich
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An infinite array of globally coupled overdamped constituents moving in a double-well potential with $n$-th order saturation term under the influence of additive Gaussian white noise is investigated. The system exhibits a continuous phase transition from a symmetric phase to a symmetry-broken phase. The qualitative behavior is independent on $n$. The critical point is calculated for strong and for weak noise, these limits are also bounds for the critical point. Introducing an additional nonlinearity, such that the potential can have up to three minima, leads to richer behavior. There the parameter space divides in three regions, a region with a symmetric phase, a region with a phase of broken symmetry and a region where both phases coexist. The region of coexistence collapses into one of the others via a discontinuous phase transition whereas the transition between the symmetric phase and the phase of broken symmetry is continuous. The tricritical point where the three regions intersect, can be calculated for strong and for weak noise. These limiting values form optimal bounds on the tricritical point. In the region of coexistence simulations of finite systems are performed. One finds that the stationary distribution of finite but large systems differs qualitatively from the one of the infinite system. Hence the limits of stationarity and large system size do not commute.
description: 15 pages, 7 figures
The Statistical Mechanics of Human Weight Change
Creators: name: Lang, John C.
name: De Sterck, Hans
name: Abrams, Daniel M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In the context of the global obesity epidemic, it is important to know who becomes obese and why. However, the processes that determine the changing shape of Body Mass Index (BMI) distributions in high-income societies are not well-understood. Here we establish the statistical mechanics of human weight change, providing a fundamental new understanding of human weight distributions. By compiling and analysing the largest data set so far of year-over-year BMI changes, we find, strikingly, that heavy people on average strongly decrease their weight year-over-year, and light people increase their weight. This drift towards the centre of the BMI distribution is balanced by diffusion resulting from random fluctuations in diet and physical activity that are, notably, proportional in size to BMI. We formulate a stochastic mathematical model for BMI dynamics, deriving a theoretical shape for the BMI distribution and offering a mechanism to explain the ongoing right-skewed broadening of BMI distributions over time. The model also provides new quantitative support for the hypothesis that peer-to-peer social influence plays a measurable role in BMI dynamics. More broadly, our results demonstrate a remarkable analogy with drift-diffusion mechanisms that are well-known from the physical sciences and finance.
Datathon juin 2023 - Politique documentaire
Creators: name: Groupe Systèmes Et Donées
Publisher: name: Zenodo
Year: 2023
Subjects: Unimarc
IFLA-LRM

description: Documents produits par le Groupe Système et données de la Transition Bibliographique dans le cadre du datathon du 27 juin 2023 sur le jeu de données Unimarc-LRM autour du thème : politique documentaire.
Cosmology emerging as the gauge structure of a nonlinear quantum system
Creators: name: Kam, Chon-Fai
name: Liu, Ren-Bao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Berry phases and gauge structures in parameter spaces of quantum systems are the foundation of a broad range of quantum effects such as quantum Hall effects and topological insulators. The gauge structures of interacting many-body systems, which often present exotic features, are particularly interesting. While quantum systems are intrinsically linear due to the superposition principle, nonlinear quantum mechanics can arise as an effective theory for interacting systems (such as condensates of interacting bosons). Here we show that gauge structures similar to curved spacetime can arise in nonlinear quantum systems where the superposition principle breaks down. In the canonical formalism of the nonlinear quantum mechanics, the geometric phases of quantum evolutions can be formulated as the classical geometric phases of a harmonic oscillator that represents the Bogoliubov excitations. We find that the classical geometric phase can be described by a de Sitter universe. The fundamental frequency of the harmonic oscillator plays the role of the cosmic scale factor and the classical geometric phase is an integral of a differential angle 2-form, which is half of the curvature 2-form of the associated de Sitter universe. While the gauge structure of a linear quantum system presents monopole singularity at energy level degeneracy points, nonlinear quantum systems, corresponding to their quantum critical surfaces in the parameter spaces, exhibits a conic singularity in their gauge structure, which mimics the casual singularity at the big bang of the de Sitter universe. This finding opens up a new approach to studying the gauge and topological structures of interacting quantum systems and sets up a new stage for quantum simulation of fundamental physics.
The Detection of Diffuse Extended Structure in 3C~273: Implications for Jet Power
Creators: name: Punsly, Brian
name: Kharb, Preeti
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present deep Very Large Array imaging of 3C~273 in order to determine the diffuse, large scale radio structure of this famous radio-loud quasar. Diffuse extended structure (radio lobes) is detected for the first time in these observations as a consequence of high dynamic range in the 327.5 and 1365 MHz images. This emission is used to estimate a time averaged jet power, $7.2 \times 10^{43} \rm{~ergs~s^{-1}} < \overline{Q} < 3.7 \times 10^{44} \rm{~ergs~s^{-1}}$. Brightness temperature arguments indicate consistent values of the time variability Doppler factor and the compactness Doppler factor for the inner jet, $δ\gtrsim 10$. Thus, the large apparent broadband bolometric luminosity of the jet, $\sim 3 \times 10^{46}\rm{~ergs~s^{-1}}$, corresponds to a modest intrinsic luminosity $\gtrsim 10^{42}\rm{~ergs~s^{-1}}$, or $\sim 1\%$ of $\overline{Q}$. In summary, we find that 3C~273 is actually a "typical" radio loud quasar contrary to suggestions in the literature. The modest $\overline{Q}$ is near the peak of the luminosity distribution for radio loud quasars and it is consistent with the current rate of dissipation emitted from millimeter wavelengths to gamma rays. The extreme core-jet morphology is an illusion from a near pole-on line of sight to a highly relativistic jet that produces a Doppler enhanced glow that previously swamped the lobe emission. 3C~273 apparently has the intrinsic kpc scale morphology of a classical double radio source, but it is distorted by an extreme Doppler aberration.
description: To appear in ApJ
Effect of rotational-state-dependent molecular alignment on the optical dipole force
Creators: name: Kim, Lee Yeong
name: Lee, Ju Hyeon
name: Kim, Hye Ah
name: Kwak, Sang Kyu
name: Friedrich, Bretislav
name: Zhao, Bum Suk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The properties of molecule-optical elements such as lenses or prisms based on the interaction of molecules with optical fields depend in a crucial way on the molecular quantum state and its alignment created by the optical field. However, in previous experimental studies, the effects of state-dependent alignment have never been included in estimates of the optical dipole force acting on the molecules while previous theoretical investigations took the state-dependent molecular alignment into account only implicitly. Herein, we consider the effects of molecular alignment explicitly and, to this end, introduce an effective polarizability which takes proper account of molecular alignment and is directly related to the alignment-dependent optical dipole force. We illustrate the significance of including molecular alignment in the optical dipole force by a trajectory study that compares previously used approximations with the present approach. The trajectory simulations were carried out for an ensemble of linear molecules subject to either propagating or standing-wave optical fields for a range of temperatures and laser intensities. The results demonstrate that the alignment-dependent effective polarizability can serve to provide correct estimates of the optical dipole force, on which a state-selection method applicable to nonpolar molecules could be based. We note that an analogous analysis of the forces acting on polar molecules subject to an inhomogeneous static electric field reveals a similarly strong dependence on molecular orientation.
description: 42 pages, 9 figures
The Rationale for vitamin, mineral, and cofactor treatment in the precision medical care of autism spectrum disorder
Creators: name: Indika, Neluwa-Liyanage R.
name: Frye, Richard E.
name: A Rossignol, Daniel
name: Owens, Susan C.
name: Senaratne, Udara D.
name: Grabrucker, Andreas
name: Perera, Rasika
name: Engelen, Marielle P. K. J.
name: Deutz, Nicolaas E. P.
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Biological sciences
subject: FOS: Biological sciences

description: Children with autism spectrum disorder may exhibit nutritional deficiencies due to reduced intake, genetic variants, autoantibodies interfering with vitamin transport, and the accumulation of toxic compounds that consume vitamins. Importantly, vitamins and metal ions are essential for several metabolic pathways and for neurotransmitter functioning. The therapeutic benefits of supplementing vitamins, minerals (Zinc, Magnesium, Molybdenum, and Selenium), and other cofactors (coenzyme Q10, alpha-lipoic acid, and tetrahydrobiopterin) are mediated through their cofactor as well as non-cofactor functions. Interestingly, some vitamins can be safely administered at levels far above the dose typically used to correct the deficiency and exert effects beyond their functional role as enzyme cofactors. Moreover, the interrelationships between these nutrients can be leveraged to obtain synergistic effects using combinations. The present review discusses the current evidence for using vitamins, minerals, and cofactors in autism spectrum disorder, the rationale behind their use, and the prospects for future use.
Homodyne-like detection for state-discrimination in the presence of phase noise
Creators: name: Bina, Matteo
name: Allevi, Alessia
name: Bondani, Maria
name: Olivares, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an innovative strategy to discriminate between two coherent states affected by either uniform or gaussian phase noise. The strategy is based on a homodyne-like detection scheme with photon-number-resolving detectors in the regime of low-intensity local oscillator. The experimental implementation of the detection scheme involves two hybrid photodetectors, whose outputs are used in post processing to calculate the shot-by-shot photon-number difference. The performance of this strategy is quantified in terms of the error probability in discriminating the noisy coherent signals as a function of the characteristic noise parameters.
description: 5 pages, 5 figures