cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Direitos Autorais e licenças Creative Commons para editores de periódicos científicos
Creators: name: Muriel-Torrado, Enrique
Publisher: name: Zenodo
Year: 2020
Subjects: copyright, license, Creative Commons, Scientific Journals, Editors, Scholarly Communication

description: Apresentação no evento I Seminário de Periódicos Científicos da Universidade de Pernambuco. 02/12/20. Video disponível em: https://youtu.be/7tDbih_8UZg
The black hole-star formation connection over cosmic time
Creators: name: Singh, Chandra B.
name: Kulasiri, Nelitha
name: North, Max
name: Garofalo, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations at low redshift have begun to tease out the star formation rate in active galaxies (AGN), which marks the beginning of the black hole-star formation connection over cosmic time. Star formation appears to depend on AGN type, cluster richness, and black hole accretion, but in ways that are not direct and have yet to be understood. Much of the confusion is that while some AGN appear to enhance star formation, others seem to suppress it. By implementing simplified, yet informed assumptions about AGN feedback on star formation, we show how AGN with jets might be dominated by two phases in which star formation is first enhanced, then suppressed. With this new element incorporated into our model, we make sense of radio and quasar mode behavior in the star formation rate-stellar mass (SFR-SM) plane for AGN. Due to jet feedback on star formation, jetted AGN tend to move upwards and rightward in the SFR-SM plane and then downward and to the right, past both the star-forming main sequence (SFMS) as well as the radio-quiet AGN. This picture allows us to predict the black hole connection to star formation as a function of the environment over the history of the universe.
description: 15 pages, 5 figures, Accepted for publication in the PASP Journal
Spin-Electric Coupling in Molecular Magnets
Creators: name: Trif, Mircea
name: Troiani, Filippo
name: Stepanenko, Dimitrije
name: Loss, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the triangular antiferromagnet Cu$_3$ in external electric fields, using symmetry group arguments and a Hubbard model approach. We identify a spin-electric coupling caused by an interplay between spin exchange, spin-orbit interaction, and the chirality of the underlying spin texture of the molecular magnet. This coupling allows for the electric control of the spin (qubit) states, e.g. by using an STM tip or a microwave cavity. We propose an experimental test for identifying molecular magnets exhibiting spin-electric effects.
description: 5 pages, 3 figures
Bayesian inference of ion velocity distribution function from laser-induced fluorescence spectra
Creators: name: Tokuda, Satoru
name: Kawachi, Yuichi
name: Sasaki, Makoto
name: Arakawa, Hiroyuki
name: Yamasaki, Kotaro
name: Terasaka, Kenichiro
name: Inagaki, Shigeru
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The velocity distribution function is a statistical description that connects particle kinetics and macroscopic parameters in many-body systems. Laser-induced fluorescence (LIF) spectroscopy is utilized to measure the local velocity distribution function in spatially inhomogeneous plasmas. However, the analytic form of such a function for the system of interest is not always clear under the intricate factors in non-equilibrium states. Here, we propose a novel approach to select the valid form of the velocity distribution function based on Bayesian statistics. We formulate the Bayesian inference of ion velocity distribution function and apply it to LIF spectra locally observed at several positions in a linear magnetized plasma. We demonstrate evaluating the spatial inhomogeneity by verifying each analytic form of the local velocity distribution function. Our approach is widely applicable to experimentally establish the velocity distribution function in plasmas and fluids, including gases and liquids.
Cosmological parameter forecasts by a joint 2D tomographic approach to CMB and galaxy clustering
Creators: name: Bermejo-Climent, José R.
name: Ballardini, Mario
name: Finelli, Fabio
name: Paoletti, Daniela
name: Maartens, Roy
name: Rubiño-Martin, José A.
name: Valenziano, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cross-correlation between the cosmic microwave background (CMB) fields and matter tracers carries important cosmological information. In this paper, we forecast by a signal-to-noise ratio analysis the information contained in the cross-correlation of the CMB anisotropy fields with source counts for future cosmological observations and its impact on cosmological parameters uncertainties, using a joint tomographic analysis. We include temperature, polarization and lensing for the CMB fields and galaxy number counts for the matter tracers. By restricting ourselves to quasi-linear scales, we forecast by a Fisher matrix formalism the relative importance of the cross-correlation of source counts with the CMB in the constraints on the parameters for several cosmological models. We obtain that the CMB-number counts cross-correlation can improve the dark energy Figure of Merit (FoM) at most up to a factor $\sim 2$ for LiteBIRD+CMB-S4 $\times$ SKA1 compared to the uncorrelated combination of both probes and will enable the Euclid-like photometric survey to reach the highest FoM among those considered here. We also forecast how CMB-galaxy clustering cross-correlation could increase the FoM of the neutrino sector, also enabling a statistically significant ($\gtrsim$ 3$σ$ for LiteBIRD+CMB-S4 $\times$ SPHEREx) detection of the minimal neutrino mass allowed in a normal hierarchy by using quasi-linear scales only. Analogously, we find that the uncertainty in the local primordial non-Gaussianity could be as low as $σ(f_{\rm NL}) \sim 1.5-2$ by using two-point statistics only with the combination of CMB and radio surveys such as EMU and SKA1. Our results highlight the additional constraining power of the cross-correlation between CMB and galaxy clustering from future surveys which is mainly based on quasi-linear scales and therefore sufficiently robust to non-linear effects.
description: 30 pages, 13 figures, 10 tables
MOESM3 of Enhancing surfactin production by using systematic CRISPRi repression to screen amino acid biosynthesis genes in Bacillus subtilis
Creators: name: Congya Wang
name: Yingxiu Cao
name: Yongping Wang
name: Liming Sun
name: Song, Hao
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology

description: Additional file 3: Figure S1. Construction of the surfactin production B. subtilis strain BS168NU-S. (A) Schematic diagram of the double crossover homologous recombination for construction of the recombinant B. subtilis strain BS168NU-S. Phosphopantetheinyl transferase (PPTase), which plays an essential role in surfactin synthesis, is encoded by the sfp gene. However, sfp in the wild-type B. subtilis 168 strain (BS168NU) is inactive due to a termination codon in the middle of the gene sequence. We thus integrated the sfp gene under the control of the P43 promoter into the ydeO site of the BS168NU genome using double crossover homologous recombination and the Spizizen transformation approach. (B) Surfactin production by the B. subtilis strains of BS168NU and BS168NU-S 24 h after inoculation in 5 mL of semi-defined fermentation medium without xylose inducer.
Ferromagnetism in multi-band Kondo lattice model
Creators: name: Sharma, A.
name: Nolting, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ferromagnetic spin exchange interaction between the itinerant electrons and localized moments on a periodic lattice, studied within the so-called Kondo lattice model (KLM), is considered for multiband situation where the hopping integral is a matrix, in general. The modified RKKY theory, wherein one can map such a model onto an effective Heisenberg-like system, is extended to a multi-band case with finite bandwidth and hybridization on a simple cubic lattice. As an input for the evaluation of the effective exchange integrals, one requires the multi-band electronic self energy which is taken from an earlier proposed ansatz. Using the above procedure, we determine the magnetic properties of the system like Curie temperature while calculating the chemical potential and magnetization within a self consistent scheme for various values of system parameters. The results are discussed in detail and the model is motivated in order to study the electronic, transport and magnetic properties of real materials like GdN.
description: 10 pages, 8 figures
MOESM4 of Enhancing surfactin production by using systematic CRISPRi repression to screen amino acid biosynthesis genes in Bacillus subtilis
Creators: name: Congya Wang
name: Yingxiu Cao
name: Yongping Wang
name: Liming Sun
name: Song, Hao
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 4: Figure S2. The surfactin production per OD600 of parent strains and with CRISPRi-based single gene interference in the BS168NU-Sd strain 24 h after inoculation in 5 mL of the semi-defined fermentation medium.
Wavelet analysis of non-Gaussian anisotropies from primordial voids in simulated maps of the Cosmic Microwave Background
Creators: name: Noviello, Fabio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Phase transitions taking place during the inflationary epoch give rise to bubbles of true vacuum embedded in the false vacuum. These bubbles can imprint a distinctive signal on the Cosmic Microwave Background (CMB). We evaluate the feasibility of detecting these signatures with waveletsin CMB maps, such as those that will be made available by the European Space Agency's (ESA) Planck mission.
description: Version updated to match contents of article accepted by New Astronomy
On the Quality of Deriving Conceptual Models from Use Cases and User Stories
Creators: name: Ferreira, Raquel
name: Araújo, João
name: Gralha, Catarina
Publisher: name: Zenodo
Year: 2021

description: Replication package (the experimental materials) for the experiments done in the 'On the Quality of Deriving Conceptual Models from Use Cases and User Stories' thesis. In addition, the data extracted during the experiments performed is also presented.
Acceleration of tracer and light particles in compressible homogeneous isotropic turbulence
Creators: name: Wang, Xiangjun
name: Wan, Minping
name: Biferale, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The accelerations of tracer and light particles in compressible homogeneous isotropic turbulence (CHIT) is investigated by using data from direct numerical simulations (DNS) up to turbulent Mach number $M_t =1$. For tracer particles, the flatness factor of acceleration components, $F_a$, increases gradually for $M_t \in [0.3, 1]$. On the contrary, $F_a$ for light particles develops a maximum around $M_t \sim 0.6$. The PDF of longitudinal acceleration of tracers is increasingly skewed towards the negative value as $M_t$ increases. By contrast, for light particles, the skewness factor of longitudinal acceleration, $S_a$, firstly becomes more negative with the increase of $M_t$, and then goes back to $0$ when $M_t$ is larger than $0.6$. Similarly, differences among tracers and light particles appear also in the zero-crossing time of acceleration correlation. It is argued that all these phenomenons are intimately linked to the flow structures in compression regions, e.g. close to shocklets.
Particle Dynamics And Emergent Gravity
Creators: name: Fatollahi, Amir H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The emergent gravity proposal is examined within the framework of noncommutative QED/gravity correspondence from particle dynamics point of view.
description: 1+6 pages, no figs, LaTeX
Project final video
Creators: name: Errandonea, Lucía Paz
name: Balestrini, Martin
name: Boloix, Elsa
name: Creus, Javier
name: Righi, Valeria
Publisher: name: Zenodo
Year: 2021
Subjects: Odour pollution

description: This deliverable D7.6 Project Final Video was initially planned as a delivery of one video showing the project’s main achievements, to be presented at the end of the project. However, previous experience of project partner IFC in producing the documentary for the EU project Making Sense, suggested that producing visual testimonies over the course of the project is instrumental for supporting dissemination and communication activities and increasing awareness over the project. Based on this insight, the consortium decided to split the D-NOSES video into three different pieces to showcase odour pollution issues in different affected communities and the methodologies followed within this innovative methodology using the citizen science approach. Links: https://www.youtube.com/watch?v=RbS7Ga7pBEU https://www.youtube.com/watch?v=RDYe9F3JjVY&feature=youtu.be https://www.youtube.com/watch?v=i-nBqWhTRFU&feature=youtu.be
Ricci flows, wormholes and critical phenomena
Creators: name: Husain, Viqar
name: Seahra, Sanjeev S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the evolution of wormhole geometries under Ricci flow using numerical methods. Depending on values of initial data parameters, wormhole throats either pinch off or evolve to a monotonically growing state. The transition between these two behaviors exhibits a from of critical phenomena reminiscent of that observed in gravitational collapse. Similar results are obtained for initial data that describe space bubbles attached to asymptotically flat regions. Our numerical methods are applicable to "matter-coupled" Ricci flows derived from conformal invariance in string theory.
description: 8 pages, 5 figures. References added and minor changes to match version accepted by CQG as a fast track communication
Essential dimension of Hermitian spaces
Creators: name: Semenov, Nikita
name: Zainoulline, Kirill
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C25

description: Given an hermitian space we compute its essential dimension, Chow motive and prove its incompressibility in certain dimensions.
description: 6 pages
Letter from Kathleen Raine to Robin Skelton, October 12, [between 1953 and 1990]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Editors
valueUri: http://id.worldcat.org/fast/902475

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine writes about Herbert Read.
Scaling limit for determinantal point processes on spheres
Creators: name: Katori, Makoto
name: Shirai, Tomoyuki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60G55, 60B10 (Primary), 60B20, 46E22 (Secondary)

description: The unitary group with the Haar probability measure is called Circular Unitary Ensemble. All the eigenvalues lie on the unit circle in the complex plane and they can be regarded as a determinantal point process on $\mathbb{S}^1$. It is also known that the scaled point processes converge weakly to the determinantal point process associated with the so-called sine kernel as the size of matrices tends to $\infty$. We extend this result to the case of high-dimensional spheres and show that the scaling limit processes are determinantal point processes associated with the kernels expressed by the Bessel functions of the first kind.
description: "Stochastic Analysis on Large Scale Interacting Systems". November 5-8, 2018. edited by Ryoki Fukushima, Tadahisa Funaki, Yukio Nagahata, Hirofumi Osada and Kenkichi Tsunoda. The papers presented in this volume of RIMS K\^oky\^uroku Bessatsu are in final form and refereed. http://hdl.handle.net/2433/260647
title: CERN Environment Report—Rapport sur l’environnement, Vol. 2 (2021): CERN Environment Report—Rapport sur l’environnement 2019–2020
title: CERN Environment Report—Rapport sur l’environnement 2019–2020
titleType: AlternativeTitle
Creators: name: CERN Environment Report—Rapport Sur L’environnement
Publisher: name: CERN Environment Report—Rapport sur l’environnement
Year: 2021

description: CERN’s Environment Report outlines the Organization’s commitment to becoming a role model for environmentally responsible research and sets out concrete objectives for environmental stewardship. Le rapport sur l’environnement du CERN démontre la volonté de l'Organisation de devenir un modèle d’une recherche respectueuse de l'environnement et fixe des objectifs concrets pour la gestion de l’environnement.
Thermodynamics of Friedmann Equation and Masslike Function in General Braneworld
Creators: name: Zhu, Tao
name: Ren, Ji-Rong
name: Mo, Shu-Fan
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the generalized procedure proposed by \emph{Wu et al}\cite{wu} recently, we construct the first law of thermodynamics on apparent horizon in a general braneworld model with curvature correction terms on the brane and in the bulk, respectively. The explicit entropy formulary of apparent horizon in the general braneworld is worked out. We also discuss the masslike function which associated with a new type first law of thermodynamics of the general braneworld in detail. We analyze the difference between the conventional thermodynamics and the new type thermodynamics on apparent horizon. At last, the discussions about the physical meanings of the masslike function have also been given.
description: 14 pages, revtex form, no figure, english writing improved and some discussions expanded. Accepted for publication in Int.J.Mod.Phys.A
A group analysis of nonlinear differential equations
Creators: name: Kumei, Sukeyuki
Publisher: name: University of British Columbia
Year: 2010

description: A necessary and sufficient condition is established for the existence of an invertible mapping of a system of nonlinear differential equations to a system of linear differential equations based on a group analysis of differential equations. It is shown how to construct the mapping, when it exists, from the invariance group of the nonlinear system. It is demonstrated that the hodograph transformation, the Legendre transformation and Lie's transformation of the Monge-Ampere equation are obtained from this theorem. The equation (ux)Puxx-uyy=0 is studied and it is determined for what values of p this equation is transformable to a linear equation by an invertible mapping. Many of the known non-invertible mappings of nonlinear equations to linear equations are shown to be related to invariance groups of equations associated with the given nonlinear equations. A number of such; examples are given, including Burgers' equation uxx +uuz-ut=0 a nonlinear diffusion equation (u⁻²ux ) x -ut =0, equations of wave propagation {Vy-wx=0, Vy-avw-bv-cw=0}, equations of a fluid flow {wy+vx=0, wx -v⁻¹wP=0} and the Liouville equation uxy=eu. As another application of group analysis, it is shown how conservation laws associated with the Korteweg-deVries equation, the cubic Schrodinger equation, the sine-Gordon equation and Hamilton's field equation are related to the invariance groups of the respective equations. All relevant background information is in the thesis, including an appendix on the known algorithm for computing the invariance group of a given system of differential equations.
General Construction and Topological Classification of All Magnetic and Non-Magnetic Flat Bands
Creators: name: Călugăru, Dumitru
name: Chew, Aaron
name: Elcoro, Luis
name: Regnault, Nicolas
name: Song, Zhi-Da
name: Bernevig, B. Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Exotic phases of matter emerge from the interplay between strong electron interactions and non-trivial topology. Owing to their lack of dispersion at the single-particle level, systems harboring flat bands are excellent testbeds for strongly interacting physics, with twisted bilayer graphene serving as a prime example. On the other hand, existing theoretical models for obtaining flat bands in crystalline materials, such as the line-graph formalism, are often too restrictive for real-life material realizations. Here we present a generic technique for constructing perfectly flat bands from bipartite crystalline lattices. Our prescription encapsulates and generalizes the various flat band models in the literature, being applicable to systems with any orbital content, with or without spin-orbit coupling. Using Topological Quantum Chemistry, we build a complete topological classification in terms of symmetry eigenvalues of all the gapped and gapless flat bands, for all 1651 Magnetic Space Groups. In addition, we derive criteria for the existence of symmetry-protected band touching points between the flat and dispersive bands, and we identify the gapped flat bands as prime candidates for fragile topological phases. Finally, we show that the set of all (gapped and gapless) perfectly flat bands is finitely generated and construct the corresponding bases for all 1651 Shubnikov Space Groups.
description: 8+418 pages, 9 tables, 10 figures, previously submitted. See also "Catalogue of Flat Band Stoichiometric Materials", Regnault et al
Free-energy transition in a gas of non-interacting nonlinear wave-particles
Creators: name: Fratalocchi, Andrea
name: Conti, Claudio
name: Ruocco, Giancarlo
name: Trillo, Stefano
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the dynamics of a gas of non-interacting particle-like soliton waves, demonstrating that phase transitions originate from their collective behavior. This is predicted by solving exactly the nonlinear equations and by employing methods of the statistical mechanics of chaos. In particular, we show that a suitable free energy undergoes a metamorphosis as the input excitation is increased, thereby developing a first order phase transition whose measurable manifestation is the formation of shock waves. This demonstrates that even the simplest phase-space dynamics, involving independent (uncoupled) degrees of freedom, can sustain critical phenomena.
description: 4 pages, 3 figures
Emergent gauge symmetries -- making symmetry as well as breaking it
Creators: name: Bass, Steven D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Gauge symmetries play an essential role in determining the interactions of particle physics. Where do they come from? Might the gauge symmetries of the Standard Model unify in the ultraviolet or might they be emergent in the infrared, below some large scale close to the Planck scale? Emergent gauge symmetries are important in quantum many-body systems in quantum phases associated with long range entanglement and topological order, e.g., they arise in high temperature superconductors, with string-net condensation and in the A-phase of superfluid He-3. String-nets and superfluid He-3 exhibit emergent properties similar to the building blocks of particle physics. Emergent gauge symmetries also play an important role in simulations of quantum field theories. This article discusses recent thinking on possible emergent gauge symmetries in particle physics, commenting also on Higgs phenomena and the vacuum energy or cosmological constant puzzle in emergent gauge systems.
description: 16 pages, to appear in Philosophical Transactions of the Royal Society A
Prediction of an $Ω_{bbb}Ω_{bbb}$ dibaryon in the extended one-boson exchange model
Creators: name: Liu, Ming-Zhu
name: Geng, Li-Sheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Ever since Yukawa proposed that the pion is responsible for mediating the nucleon-nucleon interaction, meson exchanges have been widely used in understanding hadron-hadron interactions. The most studied mesons are the $σ$, $π$, $ρ$, and $ω$, while other heavier mesons are often argued to be less relevant because they lead to short range interactions. However, the ranges of interactions should be compared with the size of the system under study but not in absolute terms. In this work, we propose that one charmoninium exchange is responsible for the formation of the $Ω_{ccc}Ω_{ccc}$ dibaryon, recently predicted by lattice QCD simulations. The same approach can be extended to the strangeness and bottom sectors, leading to the prediction on the existence of $ΩΩ$ and $Ω_{bbb}Ω_{bbb}$ dibaryons, while the former is consistent with existing lattice QCD results, the latter remains to checked. In addition, we show that the Coulomb interaction may break up the $Ω_{ccc}Ω_{ccc}$ pair but not the $Ω_{bbb}Ω_{bbb}$ and $ΩΩ$ dibaryons, particularly, the latter.
description: 6 pages, 3 figures
Psycho-Technography
Creators: name: Bartfai-Walcott, Katalin Klara
Publisher: name: Zenodo
Year: 2025

description: This document formally defines and introduces the term psycho-technography, coined and authored by Katalin Klara Bartfai-Walcott, to describe a foundational mechanism in the digital architecture of AI-driven systems.

Psycho-technography refers to the systematized capture, modeling, and substitution of human interiority, emotion, belief, and intent, through computational systems that reconstruct the person as a behavioral artifact rather than a sovereign subject. It identifies how digital systems infer and operationalize internal human states without consent, representation, or presence.

The term fills a critical linguistic and conceptual gap in current discussions of surveillance, behavioral profiling, and digital agency. Where existing terms describe outcomes or power structures, psycho-technography describes the architectural process that displaces subjectivity and authorship through computation.

This document is the authoritative record of the concept’s definition, authorship, and intended applications. It establishes the term's intellectual provenance and lays the groundwork for its future use in academic, legal, and technical contexts concerning digital sovereignty, privacy, identity, and human-centered AI.

Released under a Creative Commons Attribution 4.0 International License (CC-BY 4.0) to support public citation, academic exploration, and responsible adoption.
Young's Modulus and Corresponding Orientation in β-Ga2O3 Thin Films Resolved by Nanomechanical Resonators
Creators: name: Zheng, Xu-Qian
name: Zhao, Hongping
name: Jia, Zhitai
name: Tao, Xutang
name: Feng, Philip X. -L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the non-destructive measurement of Young's modulus of thin-film single crystal beta gallium oxide (beta-Ga2O3) out of its nanoscale mechanical structures by measuring their fundamental mode resonance frequencies. From the measurements, we extract Young's modulus in (100) plane, EY,(100) = 261.4+/-20.6 GPa, for beta-Ga2O3 nanoflakes synthesized by low-pressure chemical vapor deposition (LPCVD), and Young's modulus in [010] direction, EY,[010] = 245.8+/-9.2 GPa, for beta-Ga2O3 nanobelts mechanically cleaved from bulk beta-Ga2O3 crystal grown by edge-defined film-fed growth (EFG) method. The Young's moduli extracted directly on nanomechanical resonant device platforms are comparable to theoretical values from first-principle calculations and experimentally extracted values from bulk crystal. This study yields important quantitative nanomechanical properties of beta-Ga2O3 crystals, and helps pave the way for further engineering of beta-Ga2O3 micro/nanoelectromechanical systems (M/NEMS) and transducers.
description: 11 Pages, 5 Figures, with 3 Pages of Supplementary Material and 1 Supplementary Figure
The early instability scenario: Mars' mass explained by Jupiter's orbit
Creators: name: Clement, Matthew S.
name: Kaib, Nathan A.
name: Raymond, Sean N.
name: Chambers, John E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The formation of the solar system's giant planets predated the ultimate epoch of massive impacts that concluded the process of terrestrial planet formation. Following their formation, the giant planets' orbits evolved through an episode of dynamical instability. Several qualities of the solar system have recently been interpreted as evidence of this event transpiring within the first ~100 Myr after the Sun's birth; around the same time as the final assembly of the inner planets. In a series of recent papers we argued that such an early instability could resolve several problems revealed in classic numerical studies of terrestrial planet formation; namely the small masses of Mars and the asteroid belt. In this paper, we revisit the early instability scenario with a large suite of simulations specifically designed to understand the degree to which Earth and Mars' formation are sensitive to the specific evolution of Jupiter and Saturn's orbits. By deriving our initial terrestrial disks directly from recent high-resolution simulations of planetesimal accretion, our results largely confirm our previous findings regarding the instability's efficiency of truncating the terrestrial disk outside of the Earth-forming region in simulations that best replicate the outer solar system. Moreover, our work validates the primordial 2:1 Jupiter-Saturn resonance within the early instability framework as a viable evolutionary path for the solar system. While our simulations elucidate the fragility of the terrestrial system during the epoch of giant planet migration, many realizations yield outstanding solar system analogs when scrutinized against a number of observational constraints. Finally, we highlight the inability of models to form adequate Mercury-analogs and the low eccentricities of Earth and Venus as the most significant outstanding problems for future numerical studies to resolve.
description: 24 pages, 10 figures, 6 tables, accepted for publication in Icarus
Strong coupling expansion for finite temperature Yang-Mills theory in the confined phase
Creators: name: Langelage, Jens
name: Münster, Gernot
name: Philipsen, Owe
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We perform euclidean strong coupling expansions for Yang Mills theory on the lattice at finite temperature. After setting up the formalism for general SU(N), we compute the first few terms of the series for the free energy density and the lowest screening mass in the case of SU(2). To next-to-leading order the free energy series agrees with that of an ideal gas of glueballs. This demonstrates that in the confined phase the quasi-particles indeed correspond to the T=0 hadron excitations, as commonly assumed in hadron resonance gas models. Our result also fixes the lower integration constant for Monte Carlo calculations of the thermodynamic pressure via the integral method. In accord with Monte Carlo results, we find screening masses to be nearly temperature independent in the confined phase. This and the exponential smallness of the pressure can be understood as genuine strong coupling effects. Finally, we analyse Pade approximants to estimate the critical couplings of the phase transition, which for our short series are only ~25% accurate. However, up to these couplings the equation of state agrees quantitatively with numerical results on N_t=1-4 lattices.
description: 18 pages, 4 figures, Nt=1 results added, references added, version published in JHEP
Robust 4-manifolds and robust embeddings
Creators: name: Krushkal, Vyacheslav
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: A link in the 3-sphere is homotopically trivial, according to Milnor, if its components bound disjoint maps of disks in the 4-ball. This paper concerns the question of what spaces give rise to the same class of homotopically trivial links when used in place of disks in an analogous definition. We show that there are 4-manifolds for which this property depends on their embedding in the 4-ball. This work is motivated by the A-B slice problem, a reformulation of the 4-dimensional topological surgery conjecture. As a corollary this provides a new, secondary, obstruction in the A-B slice problem for a certain class of decompositions of D^4.
description: 11 pages
The impact of ionised outflows from z$\sim$2.5 quasars is not through instantaneous in-situ quenching: the evidence from ALMA and VLT/SINFONI
Creators: name: Scholtz, J.
name: Harrison, C. M.
name: Rosario, D. J.
name: Alexander, D. M.
name: Knudsen, K. K.
name: Stanley, F.
name: Chen, Chian-Chou
name: Kakkad, D.
name: Mainieri, V.
name: Mullaney, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high-resolution ($\sim$2.4\,kpc) ALMA band 7 observations (rest-frame $λ\sim 250μ$m) of three powerful z$\sim$2.5 quasars ($L_{\rm bol}=10^{47.3}$-$10^{47.5}$ ergs s$^{-1}$). These targets have previously been reported as showing evidence for suppressed star formation based on cavities in the narrow H$α$ emission at the location of outflows traced with [O~{\sc iii}] emission. Here we combine the ALMA observations with a re-analysis of the VLT/SINFONI data to map the rest-frame far-infrared emission, H$α$ emission, and [O~{\sc iii}] emission. In all targets we observe high velocity [O~{\sc iii}] gas (i.e., W80$\sim$1000--2000\,km\,s$^{-1}$) across the whole galaxy. We do not identify any H$α$ emission that is free from contamination from AGN-related processes; however, based on SED analyses, we show that the ALMA data contains a significant dust-obscured star formation component in two out of the three systems. This dust emission is found to be extended over $\approx$1.5--5.5\,kpc in the nuclear regions, overlaps with the previously reported H$α$ cavities and is co-spatial with the peak in surface brightness of the [O~{\sc iii}] outflows. In summary, within the resolution and sensitivity limits of the data, we do not see any evidence for a instantaneous shut down of in-situ star formation caused directly by the outflows. However, similar to the conclusions of previous studies and based on our measured star formation rates, we do not rule out that the global host galaxy star formation could be suppressed on longer timescales by the cumulative effect of quasar episodes during the growth of these massive black holes.
description: Accepted for publication in MNRAS
Integrating Pattern- and Fact-based Fake News Detection via Model Preference Learning
Creators: name: Sheng, Qiang
name: Zhang, Xueyao
name: Cao, Juan
name: Zhong, Lei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: To defend against fake news, researchers have developed various methods based on texts. These methods can be grouped as 1) pattern-based methods, which focus on shared patterns among fake news posts rather than the claim itself; and 2) fact-based methods, which retrieve from external sources to verify the claim's veracity without considering patterns. The two groups of methods, which have different preferences of textual clues, actually play complementary roles in detecting fake news. However, few works consider their integration. In this paper, we study the problem of integrating pattern- and fact-based models into one framework via modeling their preference differences, i.e., making the pattern- and fact-based models focus on respective preferred parts in a post and mitigate interference from non-preferred parts as possible. To this end, we build a Preference-aware Fake News Detection Framework (Pref-FEND), which learns the respective preferences of pattern- and fact-based models for joint detection. We first design a heterogeneous dynamic graph convolutional network to generate the respective preference maps, and then use these maps to guide the joint learning of pattern- and fact-based models for final prediction. Experiments on two real-world datasets show that Pref-FEND effectively captures model preferences and improves the performance of models based on patterns, facts, or both.
description: ACM CIKM 2021 Full Paper
Structure, short-range order, and phase stability of the Al$_x$CrFeCoNi high-entropy alloy: Insights from a perturbative, DFT-based analysis
Creators: name: Woodgate, Christopher D.
name: Marchant, George A.
name: Pártay, Livia B.
name: Staunton, Julie B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study the phase behaviour of the Al$_x$CrFeCoNi high-entropy alloy. Our approach is based on a perturbative analysis of the internal energy of the paramagnetic solid solution as evaluated within the Korringa-Kohn-Rostoker formulation of density functional theory, using the coherent potential approximation to average over disorder. Via application of a Landau-type linear response theory, we infer preferential chemical orderings directly. In addition, we recover a pairwise form of the alloy internal energy suitable for study via atomistic simulations, which in this work are performed using the nested sampling algorithm, which is well-suited for studying complex potential energy surfaces. When the underlying lattice is fcc, at low concentrations of Al, depending on the value of $x$, we predict either an $\mathrm{L}1_2$ or $\mathrm{D}0_{22}$ ordering emerging below approximately 1000 K. On the other hand, when the underlying lattice is bcc, consistent with experimental observations, we predict $\mathrm{B}2$ ordering temperatures higher than the melting temperature of the alloy, confirming that this ordered phase forms directly from the melt. For both fcc and bcc systems, chemical orderings are dominated by Al moving to one sublattice, Ni and Co the other, while Cr and Fe remain comparatively disordered. On the bcc lattice, our atomistic modelling suggests eventual decomposition into $\mathrm{B}2$ NiAl and Cr-rich phases. These results shed light on the fundamental physical origins of atomic ordering tendencies in these intriguing materials.
description: 17 pages, 11 figures, 1 table
Normal functions of product varieties
Creators: name: Lewis, James Dominic
Publisher: name: University of British Columbia
Year: 2010

description: The work of this thesis is to motivate the following: Statement: The Hodge conjecture holds for products of varieties Z = XxC where (i) X is smooth, projective of dimension 2m-l, (ii) C is a smooth curve. The basic setting of this thesis is depicted by the following where (i) k⁻¹ (t) = Zt = Xt xC, {Xt } a Lefschetz pencil of hyperplane sections of X (ii) £ is the singular set of k, i.e., k = k is smooth and proper. Corresponding to this diagram are the extended Hodge bundle U H (Z . C) with integrable connection V , and the family of tt?1 t intermediate Jacobians. U JCZ ) with corresponding normal functions Now V induces an operator (also denoted by V) on the normal functions, and those normal functions v satisfying the differential equation Vv = 0 are labeled horizontal, which includes those normal functions arising from the primitive algebraic cocycles in H²m (Z). Now the known generalization of Lefschetz's techniques state that every primitive integral class of type (m,m) in H²m (Z) comes from a horizontal normal function in some natural way, so that what's needed to prove the above statement is some way of converting a normal function to an algebraic cocycle. We motivate this statement by proving some results about the group of normal functions, in particular our main result: Theorem: The group of normal functions are horizontal. To prove this theorem, we exhibit Vv as a global section of some holomorphic vector bundle over p¹, and then show that there are no non-zero global sections of this vector bundle. The main idea is to compare the quasi-canonical extensions of certain holomorphic vector bundles with integrable connection with those extensions arising from algebra (hypercohomology), by calculating certain periods of growth. Once this comparison is made precise, we apply a vanishing theorem statement about the global sections of the algebraic extensions to our geometric extensions, thus concluding the proof of the theorem.
Collaborate, compete and share
Creators: name: Pugliese, Emanuele
name: Castellano, Claudio
name: Marsili, Matteo
name: Pietronero, Luciano
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We introduce and study a model of an interacting population of agents who collaborate in groups which compete for limited resources. Groups are formed by random matching agents and their worth is determined by the sum of the efforts deployed by agents in group formation. Agents, on their side, have to share their effort between contributing to their group's chances to outcompete other groups and resource sharing among partners, when the group is successful. A simple implementation of this strategic interaction gives rise to static and evolutionary properties with a very rich phenomenology. A robust emerging feature is the coexistence in the population of agents who invest mainly in the success of their group and agents who concentrate in getting the largest share of their group's profits.
description: 10 pages, 9 figures, published version
Spectral and angular differential imaging with SPHERE/IFS. Assessing the performance of various PCA-based approaches to PSF subtraction
Creators: name: Kiefer, S.
name: Bohn, A. J.
name: Quanz, S. P.
name: Kenworthy, M.
name: Stolker, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Angular differential imaging (ADI) and spectral differential imaging (SDI) are commonly used for direct detection and characterisation of young, Jovian exoplanets in datasets obtained with the SPHERE/IFS instrument. We compare the performance of ADI, SDI, and three combinations of ADI and SDI to find which technique achieves the highest signal-to-noise ratio (S/N), and we analyse their performance as functions of integration time, field rotation, and wavelength range. We analyse SPHERE/IFS observations of three known exoplanets, namely Beta Pictoris b, 51 Eridani b, and HR 8799 e, with five differential imaging techniques. We split the datasets into subsets to vary each parameter before the data are processed with each technique. The differential imaging techniques are applied using principal component analysis (PCA). The tests show that a combination of SDI and ADI consistently achieves better results than ADI alone, and using SDI and ADI simultaneously (combined differential imaging; CODI) achieved the best results. The integration time test shows that targets with a separation larger than 0.24 arcsec observed with an integration time of more than 10$^3$s were photon-noise limited. Field rotation shows a strong correlation with S/N for field rotations up to 1 full width at half maximum (FWHM), after which no significant increase in S/N with field rotation is observed. Wavelength range variation shows a general increase in S/N for broader wavelength ranges, but no clear correlation is seen. Spectral information is essential to boost S/N compared to regular ADI. Our results suggest that CODI should be the preferred processing technique to search for new exoplanets with SPHERE/IFS. To optimise direct-imaging observations, the field rotation should exceed 1 FWHM to detect exoplanets at small separations.
description: Accepted for publication in A&A (10 pages, 13 figures, 3 tables)