cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two-loop scale-invariant scalar potential and quantum effective operators
Creators: name: Ghilencea, D. M.
name: Lalak, Z.
name: Olszewski, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Spontaneous breaking of quantum scale invariance may provide a solution to the hierarchy and cosmological constant problems. In a scale-invariant regularization, we compute the two-loop potential of a higgs-like scalar $ϕ$ in theories in which scale symmetry is broken only spontaneously by the dilaton ($σ$). Its vev $\langleσ\rangle$ generates the DR subtraction scale ($μ\sim\langleσ\rangle$), which avoids the explicit scale symmetry breaking by traditional regularizations (where $μ$=fixed scale). The two-loop potential contains effective operators of non-polynomial nature as well as new corrections, beyond those obtained with explicit breaking ($μ$=fixed scale). These operators have the form: $ϕ^6/σ^2$, $ϕ^8/σ^4$, etc, which generate an infinite series of higher dimensional polynomial operators upon expansion about $\langleσ\rangle\gg \langleϕ\rangle$, where such hierarchy is arranged by {\it one} initial, classical tuning. These operators emerge at the quantum level from evanescent interactions ($\proptoε$) between $σ$ and $ϕ$ that vanish in $d=4$ but are demanded by classical scale invariance in $d=4-2ε$. The Callan-Symanzik equation of the two-loop potential is respected and the two-loop beta functions of the couplings differ from those of the same theory regularized with $μ=$fixed scale. Therefore the running of the couplings enables one to distinguish between spontaneous and explicit scale symmetry breaking.
description: 20 pages, LaTeX
Conflict in the public sector : secondary teachers and the Victorian Education Department, 1969-1980
Creators: name: Addinsall, Joan M.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the Reference field.
How the Canadian state kills
Creators: name: Prison Violence Project
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Prisons--Officials and employees
valueUri: http://id.worldcat.org/fast/1077378
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Prison violence
valueUri: http://id.worldcat.org/fast/1077093
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Prison administration--Corrupt practices
valueUri: http://id.worldcat.org/fast/1077008
subject: Prisons--Corrupt practices
valueUri: http://id.worldcat.org/fast/1077334
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Kingston Penitentiary
valueUri: http://id.worldcat.org/fast/612680
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103

description: This report was prepared by the Prison Violence Project, Kingston, Ontario, March 15, 1994. Rudolf Martens, Chairperson. Contains statements from Kingston Penitentiary prisoner Jose Prates (506803C) about an incident on Sunday October 24, 1993 when he witnessed a fellow prisoner's (Robert "Tex" Gentiles) death. Also contains a chronology of what happened to Prates subsequently, and an analysis of the psychological and physical manipulation by prison staff to have Prates change his original statements.
DCASE 2020 audio captioning trained seq2seq weights (PyTorch 1.4.0) with small vocab
Creators: name: Pellegrini, Thomas
Publisher: name: Zenodo
Year: 2020
Subjects: seq2seq, audio_captioning

description: Weights of the model I used in my submissions to DCASE 2020 task 6 . audio captioning, with a vocabulary comprised of words occurring at least 10 times in the dev subset. see https://github.com/topel/dcase_2020_audio_captioning
Study on the $Υ(1S)$ ${\to}$ $B_{c}M$ weak decays
Creators: name: Sun, Junfeng
name: Chen, Lili
name: Wang, Na
name: Chang, Qin
name: Huang, Jinshu
name: Yang, Yueling
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the prospects of the potential $Υ(1S)$ particle at high-luminosity heavy-flavor experiments, we studied the $Υ(1S)$ ${\to}$ $B_{c}M$ weak decays, where $M$ $=$ $π$, $ρ$, $K^{(\ast)}$. The nonfactorizable contributions to hadronic matrix elements are taken into consideration with the QCDF approach. It is found that the CKM-favored $Υ(1S)$ ${\to}$ $B_{c}ρ$ decay has branching ratio of ${\cal O}(10^{-10})$, which might be measured promisingly by the future experiments.
description: 15 pages, revtex
Report on the violent potential of Kingston Penitentiary
Creators: name: Prison Violence Project
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Prison violence
valueUri: http://id.worldcat.org/fast/1077093
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Kingston Penitentiary
valueUri: http://id.worldcat.org/fast/612680
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Prison riots
valueUri: http://id.worldcat.org/fast/1077075

description: A report prepared by the Prison Violence Project, Kingston, Ont., February 2, 1994. Rudolf Martens, Chairperson; J. Campbell, Secretary. Discusses the causes of prison violence and riots in general, and at Kingston Penitentiary in particular. Includes bibliographical references (p. 6)
Compilation of presentations abstracts : International Conference on Penal Abolition
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Alternatives to imprisonment
valueUri: http://id.worldcat.org/fast/806191
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Punishment
valueUri: http://id.worldcat.org/fast/1084107
subject: Corrections
valueUri: http://id.worldcat.org/fast/880260
subject: Congresses and conventions
valueUri: http://id.worldcat.org/fast/875219
subject: Authority
valueUri: http://id.worldcat.org/fast/821653
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Correctional institutions
valueUri: http://id.worldcat.org/fast/880178
subject: Abstracts
valueUri: http://id.worldcat.org/fast/1423683
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Imprisonment
valueUri: http://id.worldcat.org/fast/968277

description: Collection of abstracts from the 1987 International Conference on Penal Abolition (ICOPA III). Table of Contents: Les autochtones et la justice au Quebec : le cas des Inuit du Nouveau-Quebec / Mylene Jaccoud -- The outcome of colonisation on Native rights / Patricia Monture -- Is pessimism about reducing prison populations warranted? / Maeve McMahon -- The native people : a non-punitive way of life / Patrician Monture -- Analyse d'experiences tirees de la Bible / Antoine Mayere -- Reconciliation as justice : the case for a communitarian model / Peter Cordella -- Analyse des experiences de certaines traditions religieuses l'Eglise et le systeme penal au cours des siecles / Paul Magnan -- Internal asylum or sanctuary / Herman Bianchi -- Alternative sentence planning / Andrew J. Smith -- La pratique abolitionniste et le systeme penal / Antoine Zarzour -- The prisoner as a forced labourer / Gerard de Jonge -- Dealing with problematic situations in a Dutch urban neighbourhood and in a rural village from an abolitionist point of view / Hilde Van Ransbeek -- Proposed international minimum standard rules for the treatment of juvenile prisoners / Cynthia Price Cohen -- Workshop on fine default / Brenda E. McGilliard -- Prisoners on penal abolition / Howard Davidson -- Education within prisons : an abolitionist strategy? / Elizabeth Barker -- Strategies abolitionnistes et conscience politique / Jacqueline Bernat de Celis -- Conditions socio-politiques de la realisation de l'abolitionnisme / Lode Van Outrive -- Strategies within a socio-political context / Gail Kellough -- Crime and punishment as war / Harold E. Pepinski -- Civil justice as an alternative to criminal justice / Joyce Hes and Louk Hulsman -- Critique de l'abolitionnisme : l'analyse reductionniste du systeme penal / Lode Van Outrive
Diffusion-based Document Layout Generation
Creators: name: He, Liu
name: Lu, Yijuan
name: Corring, John
name: Florencio, Dinei
name: Zhang, Cha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We develop a diffusion-based approach for various document layout sequence generation. Layout sequences specify the contents of a document design in an explicit format. Our novel diffusion-based approach works in the sequence domain rather than the image domain in order to permit more complex and realistic layouts. We also introduce a new metric, Document Earth Mover's Distance (Doc-EMD). By considering similarity between heterogeneous categories document designs, we handle the shortcomings of prior document metrics that only evaluate the same category of layouts. Our empirical analysis shows that our diffusion-based approach is comparable to or outperforming other previous methods for layout generation across various document datasets. Moreover, our metric is capable of differentiating documents better than previous metrics for specific cases.
Impact of clustering of substitutional impurities on quasiparticle lifetimes and localization
Creators: name: Nedell, Jack G.
name: Vogl, Michael
name: Fiete, Gregory A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the observation and prediction of clustering behavior for impurities substituted into the host lattice of a real material, and the dramatic impact this can have on electronic properties, we develop a simple approach to describe such an effect via the electron self-energy. We employ a disorder averaged T-matrix expansion taken to second order, which we modify to include a clustering probability parameter. This approach circumvents the need for specific cluster probability distributions, simplifying greatly the analysis of clustered impurities. To gain analytical insights, we study a nearest-neighbor square lattice tight-binding Hamiltonian with clustered impurity substitutions to investigate clustering of off-diagonal hopping impurities. We find that our T-matrix approach is in excellent agreement with exact numerical results from a tight-binding computation performed with the KWANT package. We observe a variety of interesting impurity clustering-induced effects in the self-energy such as the suppression of quasi-particle lifetimes at certain momenta and an increase in localization, as indicated by the inverse participation ratio. The KWANT results are reproduced in our modified T-matrix approach. In addition, our method allows for a full analytical treatment of clustering effects which can aid in physical insight.
description: 8 pages, 6 figures
Model-based clustering based on sparse finite Gaussian mixtures
Creators: name: Malsiner-Walli, Gertraud
name: Frühwirth-Schnatter, Sylvia
name: Grün, Bettina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In the framework of Bayesian model-based clustering based on a finite mixture of Gaussian distributions, we present a joint approach to estimate the number of mixture components and identify cluster-relevant variables simultaneously as well as to obtain an identified model. Our approach consists in specifying sparse hierarchical priors on the mixture weights and component means. In a deliberately overfitting mixture model the sparse prior on the weights empties superfluous components during MCMC. A straightforward estimator for the true number of components is given by the most frequent number of non-empty components visited during MCMC sampling. Specifying a shrinkage prior, namely the normal gamma prior, on the component means leads to improved parameter estimates as well as identification of cluster-relevant variables. After estimating the mixture model using MCMC methods based on data augmentation and Gibbs sampling, an identified model is obtained by relabeling the MCMC output in the point process representation of the draws. This is performed using $K$-centroids cluster analysis based on the Mahalanobis distance. We evaluate our proposed strategy in a simulation setup with artificial data and by applying it to benchmark data sets.
description: 22 pages
From the Komar Mass and Entropic Force Scenarios to the Einstein Field Equations on the Ads Brane
Creators: name: Moradpour, H.
name: Sheykhi, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By bearing the Komar's definition for the mass, together with the entropic origin of gravity in mind, we find the Einstein field equations in $(n+1$)-dimensional spacetime. Then, by reflecting the ($4+1$)-dimensional Einstein equations on the ($3+1$)-hypersurface, we get the Einstein equations onto the $3$-brane. The corresponding energy conditions are also addressed. Since the higher dimensional considerations modify the Einstein field equations in the ($3+1$)-dimensions and thus the energy-momentum tensor, we get a relation for the Komar mass on the brane. In addition, the strongness of this relation compared with existing definition for the Komar mass on the brane is addressed.
Survival gathering : an anarchist unconvention, Toronto, July 1-4, 1988
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Congresses and conventions
valueUri: http://id.worldcat.org/fast/875219
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: An information pamphlet produced for the Anarchist Unconvention, 1988, held in Toronto, Ontario. Includes contacts, travel directions, list of workshops, etc.
One-component fermion plasma on a sphere at finite temperature. The anisotropy in the paths conformations
Creators: name: Fantoni, Riccardo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In our previous work [R. Fantoni, Int. J. Mod. Phys. C, {\bf 29}, 1850064 (2018)] we studied, through a computer experiment, a one-component fermion plasma on a sphere at finite, non-zero, temperature. We extracted thermodynamic properties like the kinetic and internal energy per particle and structural properties like the radial distribution function, and produced some snapshots of the paths to study their shapes. Here we revisit such a study giving some more theoretical details explaining the paths shape anisotropic conformation due to the inhomogeneity in the polar angle of the variance of the random walk diffusion from the kinetic action.
description: 15 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:1806.02153
Electronic spectroscopy of a cold SiO$^+$ sample: Implications for optical pumping
Creators: name: Stollenwerk, P. R.
name: Odom, B. C.
name: Kokkin, D. L.
name: Steimle, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The dispersed fluorescence following pulsed dye laser excitation of the $\textrm{B}_2 Σ^+ - \textrm{X}^2 Σ^+(0,0)$ band of a cold sample of SiO$^+$ has been recorded and analyzed. The branching ratios for $\textrm{B}_2 Σ^+ (v=0) \rightarrow \textrm{X}^2 Σ^+(v)$ and $\textrm{B}_2 Σ^+ (v=0) \rightarrow \textrm{A}^2 Π_i(v)$ emission were determined and compared with values predicted based upon existing experimental and theoretical data. The experimentally determined branching ratios show that the $\textrm{B}_2 Σ^+ (v=0) \rightarrow \textrm{X}^2 Σ^+(v)$ transitions are somewhat less diagonal than predicted. The implications for laser cooling of a trapped sample of SiO$^+$ using broadband laser excitation are discussed.
Forensic Analysis of the ChatSecure Instant Messaging Application on Android Smartphones
Creators: name: Anglano, Cosimo
name: Canonico, Massimo
name: Guazzone, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We present the forensic analysis of the artifacts generated on Android smartphones by ChatSecure, a secure Instant Messaging application that provides strong encryption for transmitted and locally-stored data to ensure the privacy of its users. We show that ChatSecure stores local copies of both exchanged messages and files into two distinct, AES-256 encrypted databases, and we devise a technique able to decrypt them when the secret passphrase, chosen by the user as the initial step of the encryption process, is known. Furthermore, we show how this passphrase can be identified and extracted from the volatile memory of the device, where it persists for the entire execution of ChatSecure after having been entered by the user, thus allowing one to carry out decryption even if the passphrase is not revealed by the user. Finally, we discuss how to analyze and correlate the data stored in the databases used by ChatSecure to identify the IM accounts used by the user and his/her buddies to communicate, as well as to reconstruct the chronology and contents of the messages and files that have been exchanged among them. For our study we devise and use an experimental methodology, based on the use of emulated devices, that provides a very high degree of reproducibility of the results, and we validate the results it yields against those obtained from real smartphones.
Vacuum polarization in Yang-Mills theories with Lorentz violation
Creators: name: Toscano, J. J.
name: Vázquez-Hernández, O.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The renormalizable extension of a pure Yang-Mills theory with Lorentz violation is characterized by the CPT-Even $(k_F)_{μνλρ}$ and the CPT-Odd $(k_{AF})_μ$ constant Lorentz coefficients. In this paper, the one-loop structure of the theory up to second order in these Lorentz violating coefficients is studied using the BFM-gauge. Results for the diverse beta functions are derived and contrasted with those given in the literature at first order in these parameters. Special emphasis is putted on the beta function $β(g)$, which is studied in both mass-independent and mass-dependent renormalization schemes. It is found that in a mass-independent scheme the $(k_{AF})_μ$ Lorentz coefficient does not contribute to the $β(g)$ function, but it does in a mass-dependent scheme with contributions that are gauge-dependent and IR divergent.
description: 21 pages, 3 figures
Singularities of axially symmetric time-like minimal submanifolds in Minkowski space
Creators: name: Wong, Willie Wai-Yeung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35L72, 35B07, 35B44, 35B65

description: We prove that there does not exist global-in-time axisymmetric solutions to the time-like minimal submanifold system in Minkowski space. We further analyze the limiting geometry as the maximal time of existence is approached.
Survival gathering : the 1988 anarchist unconvention
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Congresses and conventions
valueUri: http://id.worldcat.org/fast/875219
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387

description: An information pamphlet produced for the Anarchist Unconvention, 1988,held in Toronto, Ontario. Includes contacts, list of workshops etc. "This is the third mailout for the anarchist Survival Gathering in Toronto. The first thing that we should announce is a change of date. The conference will take place from July 1 to July 4 instead of June 17 to June 20 as previously announced."
Word Connections Student Materials
Creators: name: Toste, Jessica R.
name: Capin, Philip
name: Williams, Kelly J.
name: Kearns, Devin M.
name: Vaughn, Sharon
Publisher: name: figshare
Year: 2022
Subjects: Other education not elsewhere classified
Special education and disability

description: The Word Connections Student Materials includes all materials needed to deliver this intervention program. There are two sections. The first provides the materials that teachers will need to prepare a Word Connections folder for each student. Print one copy of each of document to be placed in individual student folders. These are materials that are used each lesson. Next, there is a set of materials for each of the 40 lessons. All lessons materials are grouped together to easily print and prepare for teaching. For questions or to share feedback, please contact Dr. Jessica Toste via email or visit her website. Word Connections: A Multisyllabic Word Reading Program©
British Columbia Blackout - No. 66
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394

description: An anarchist publication from Vancouver, British Columbia that is intended to be a call-board for information exchange for anarchist and anti-authority groups.
description: Article topics include: Direct Action, dynamite attack on B.C. Hydro's Cheekeye-Dunsmuir substation on Vancouver Island, Labor Studies Program courses for workers, announcements.
Anomalous 3D bulk AC conduction within the Kondo gap of SmB$_6$ single crystals
Creators: name: Laurita, N. J.
name: Morris, C. M.
name: Koohpayeh, S. M.
name: Rosa, P. F. S.
name: Phelan, W. A.
name: Fisk, Z.
name: McQueen, T. M.
name: Armitage, N. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Kondo insulator SmB$_6$ has long been known to display anomalous transport behavior at low temperatures, T$<5$ K. In this temperatures range, a plateau is observed in the dc resistivity, contrary to the exponential divergence expected for a gapped system. Recent theoretical calculations suggest that SmB$_6$ may be the first topological Kondo insulator (TKI) and propose that the residual conductivity is due to topological surface states which reside within the Kondo gap. Since the TKI prediction many experiments have claimed to observe high mobility surface states within a perfectly insulating hybridization gap. Here, we investigate the low energy optical conductivity within the hybridization gap of single crystals of SmB$_6$ via time domain terahertz spectroscopy. Samples grown by both optical floating zone and aluminum flux methods are investigated to probe for differences originating from sample growth techniques. We find that both samples display significant 3D bulk conduction originating within the Kondo gap. Although SmB$_6$ may be a bulk dc insulator, it shows significant bulk ac conduction that is many orders of magnitude larger than any known impurity band conduction. The nature of these in-gap states and their coupling with the low energy spin excitons of SmB$_6$ is discussed. Additionally, the well defined conduction path geometry of our optical experiments allows us to show that any surface states, which lie below our detection threshold if present, must have a sheet resistance of R$/\square \ge$ 1000 $Ω$.
description: 10 pages, 3 figures
British Columbia Blackout - No. 06
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: Article topics include: Bastille Day break-out (rally in support of National Prison Justice Day), sign up for memvbership in the Vancouver General Hospital society and vote tor pro-choice candidates for the hospital board, contribute to wording for bumper stickers, posters, etc., Pacific Life Community protests Trident nuclear facility (Bangor, Wash.), third annual B.C. women's festival of "country" skills (Denman Island, Aug.4-7), support for victim of ""domestic dispute", solitary confinement at B.C. Penitentiary (Solitary Confinement Abolition Project), anarchist study groups, Open road needs monetary contributions, Coalition Against Discrimination, new issue of Kinesis on sale, Groucho-Marxist throws a pie at Billy Carter.
description: An anarchist publication from Vancouver, British Columbia that is intended to be a call-board for information exchange for anarchist and anti-authority groups.
The Python package pyam for analysis, validation & visualizationof integrated-assessment and energy-systems scenarios
Creators: name: Huppmann, Daniel
Publisher: name: Zenodo
Year: 2023
Subjects: Integrated Assessment
Energy Systems
Climate Change
Scenario Analysis
Data Visualization
Open Source
Python

description: This presentation was delivered as part of the NAVIGATE-ENGAGE Summer School 2023 on Integrated-Assessment Modeling. This workshop was organized as part of the Horizon 2020 project ENGAGE (link). The presentation notebook introduces the design principles and the key features of the pyam package. The second part of hands-on training session at the summer school was based on the tutorial notebook at https://github.com/danielhuppmann/ENGAGE-pyam-tutorial.
Two-loop planar master integrals for Higgs$\to 3$ partons with full heavy-quark mass dependence
Creators: name: Bonciani, Roberto
name: Del Duca, Vittorio
name: Frellesvig, Hjalte
name: Henn, Johannes M.
name: Moriello, Francesco
name: Smirnov, Vladimir A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the analytic computation of all the planar master integrals which contribute to the two-loop scattering amplitudes for Higgs$\to 3$ partons, with full heavy-quark mass dependence. These are relevant for the NNLO corrections to fully inclusive Higgs production and to the NLO corrections to Higgs production in association with a jet, in the full theory. The computation is performed using the differential equations method. Whenever possible, a basis of master integrals that are pure functions of uniform weight is used. The result is expressed in terms of one-fold integrals of polylogarithms and elementary functions up to transcendental weight four. Two integral sectors are expressed in terms of elliptic functions. We show that by introducing a one-dimensional parametrization of the integrals the relevant second order differential equation can be readily solved, and the solution can be expressed to all orders of the dimensional regularization parameter in terms of iterated integrals over elliptic kernels. We express the result for the elliptic sectors in terms of two and three-fold iterated integrals, which we find suitable for numerical evaluations. This is the first time that four-point multiscale Feynman integrals have been computed in a fully analytic way in terms of elliptic functions.
description: 46 pages, 5 figures, ancillary files provided
Anarchist black dragon [special issue]
Creators: name: Anarchist Black Dragon Collective (Walla Walla, Wash.)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Capitalism
valueUri: http://id.worldcat.org/fast/846425
subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Washington State Penitentiary
valueUri: http://id.worldcat.org/fast/554748
subject: Prison periodicals
valueUri: http://id.worldcat.org/fast/1077063
subject: Prisoners' writings, American
valueUri: http://id.worldcat.org/fast/1077272
subject: Dissenters
valueUri: http://id.worldcat.org/fast/895401
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Civil rights
valueUri: http://id.worldcat.org/fast/862627
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Authority
valueUri: http://id.worldcat.org/fast/821653
subject: Political prisoners
valueUri: http://id.worldcat.org/fast/1069636
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387

description: Collection of articles, poems, papers, and other writings from prisoners along with images about anarchy, authority, and social order. "This is a special issue between volume one number six and volume two number one on the anti-dictatorship of the party line, the dictatorship of the proletariat, the party, leaders, the state, and revolution in the West."
Study on $Υ(nS)$ ${\to}$ $B_{c}M$ decays
Creators: name: Sun, Junfeng
name: Chen, Lili
name: Wang, Na
name: Huang, Jinshu
name: Yang, Yueling
name: Chang, Qin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: With anticipation of abundant Upsilons data sample at high-luminosity heavy-flavor experiments in the future, we studied nonleptonic two-body weak decays of $Υ(nS)$ below the open-bottom threshold with $n$ $=$ $1$, $2$ and $3$. It is found that branching ratios for $Υ(1S,2S,3S)$ ${\to}$ $B_{c}ρ$ decays are relatively large among upsilons decay into $B_{c}M$ final states ($M$ $=$ $π$ $ρ$, $K$ and $K^{\ast}$) and can reach up to $10^{-10}$, which is promisingly detected by experiments at the running LHC and forthcoming SuperKEKB.
description: 12 pages. arXiv admin note: text overlap with arXiv:1610.06719
The Hubbert diffusion process: Estimation via simulated annealing and variable neighborhood search procedures. Application to forecasting peak oil production
Creators: name: Sant'Ana, Istoni da Luz
name: Román-Román, Patricia
name: Torres-Ruiz, Francisco
Publisher: name: arXiv
Year: 2024
Subjects: subject: Methodology (stat.ME)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 60M20, 60J60, 60J70

description: Accurately charting the progress of oil production is a problem of great current interest. Oil production is widely known to be cyclical: in any given system, after it reaches its peak, a decline will begin. With this in mind, Marion King Hubbert developed his peak theory in 1956 based on the bell-shaped curve that bears his name. In the present work, we consider a stochasticmodel based on the theory of diffusion processes and associated with the Hubbert curve. The problem of the maximum likelihood estimation of the parameters for this process is also considered. Since a complex system of equations appears, with a solution that cannot be guaranteed by classical numerical procedures, we suggest the use of metaheuristic optimization algorithms such as simulated annealing and variable neighborhood search. Some strategies are suggested for bounding the space of solutions, and a description is provided for the application of the algorithms selected. In the case of the variable neighborhood search algorithm, a hybrid method is proposed in which it is combined with simulated annealing. In order to validate the theory developed here, we also carry out some studies based on simulated data and consider 2 real crude oil production scenarios from Norway and Kazakhstan.
description: 30 pages, 5 figures
Understanding the Physical Nature of Coronal "EIT Waves"
Creators: name: Long, David M.
name: Bloomfield, D. Shaun
name: Chen, Peng-Fei
name: Downs, Cooper
name: Gallagher, Peter T.
name: Kwon, Ryun Young
name: Vanninathan, Kamalam
name: Veronig, Astrid M.
name: Vourlidas, Angelos
name: Vrsnak, Bojan
name: Warmuth, Alexander
name: Zic, Tomislav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: For almost 20 years the physical nature of globally propagating waves in the solar corona (commonly called "EIT waves") has been controversial and subject to debate. Additional theories have been proposed over the years to explain observations that did not fit with the originally proposed fast-mode wave interpretation. However, the incompatibility of observations made using the Extreme-ultraviolet Imaging Telescope (EIT) onboard the Solar and Heliospheric Observatory with the fast-mode wave interpretation was challenged by differing viewpoints from the twin Solar Terrestrial Relations Observatory spacecraft and higher spatial/temporal resolution data from the Solar Dynamics Observatory. In this article, we reexamine the theories proposed to explain "EIT waves" to identify measurable properties and behaviours that can be compared to current and future observations. Most of us conclude that "EIT waves" are best described as fast-mode large-amplitude waves/shocks that are initially driven by the impulsive expansion of an erupting coronal mass ejection in the low corona.
description: 26 pages, 2 figures, accepted for publication in Solar Physics
Constraining nuclear symmetry energy with the charge radii of mirror-pair nuclei
Creators: name: An, Rong
name: Sun, Shuai
name: Cao, Li-Gang
name: Zhang, Feng-Shou
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The nuclear charge radius plays a vital role in determining the equation of state of isospin asymmetric nuclear matter. Based on the correlation between the differences in charge radii of mirror-partner nuclei and the slope parameter ($L$) of symmetry energy at the nuclear saturation density, an analysis of the calibrated slope parameter $L$ was performed in finite nuclei. In this study, relativistic and non-relativistic energy density functionals were employed to constrain the nuclear symmetry energy through the available databases of the mirror-pair nuclei $^{36}$Ca-$^{36}$S, $^{38}$Ca-$^{38}$Ar, and $^{54}$Ni-$^{54}$Fe. The deduced nuclear symmetry energy was located in the range 29.89-31.85 MeV, and $L$ of the symmetry energy essentially covered the range 22.50-51.55 MeV at the saturation density. Moreover, the extracted $L_s$ at the sensitivity density $ρ_{s}=0.10~\mathrm{fm}^{-3}$ was located in the interval range 30.52-39.76 MeV.
description: 23 pages, 6 figures, 2 tables, Published in Nuclear Science and Techniques
Catching jetted tidal disruption events early in millimetre
Creators: name: Yuan, Qiang
name: Wang, Q. Daniel
name: Lei, Wei-Hua
name: Gao, He
name: Zhang, Bing
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: Relativistic jets can form from at least some tidal disruption events (TDEs) of (sub-)stellar objects around supermassive black holes. We detect the millimeter (MM) emission of IGR J12580+0134 --- the nearest TDE known in the galaxy NGC 4845 at the distance of only 17 Mpc, based on Planck all-sky survey data. The data show significant flux jumps after the event, followed by substantial declines, in all six high frequency Planck bands from 100 GHz to 857 GHz. We further show that the evolution of the MM flux densities are well consistent with our model prediction from an off-axis jet, as was initially suggested from radio and X-ray observations. This detection represents the second TDE with MM detections; the other is Sw J1644+57, an on-axis jetted TDE at redshift of 0.35. Using the on- and off-axis jet models developed for these two TDEs as templates, we estimate the detection potential of similar events with the Large Millimeter Telescope (LMT) and the Atacama Large Millimeter/submillimeter Array (ALMA). Assuming an exposure of one hour, we find that the LMT (ALMA) can detect jetted TDEs up to redshifts $z\sim1$ (2), for a typical disrupted star mass of $\sim1$ M$_\odot$. The detection rates of on- and off-axis TDEs can be as high as $\sim0.6$ (13) and 10 (220) per year, respectively, for the LMT (ALMA). We briefly discuss how such observations, together with follow-up radio monitoring, may lead to major advances in understanding the jetted TDEs themselves and the ambient environment of the CNM.
description: 10 pages, 6 figures, 4 tables; accepted by MNRAS
Orientational dynamics and rheology of active suspensions in weakly viscoelastic flows
Creators: name: Choudhary, Akash
name: Nambiar, Sankalp
name: Stark, Holger
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Microswimmer suspensions in Newtonian fluids exhibit unusual macroscale properties, such as a superfluidic behavior, which can be harnessed to perform work at microscopic scales. Since most biological fluids are non-Newtonian, here we study the rheology of a microswimmer suspension in a weakly viscoelastic shear flow. At the individual level, we find that the viscoelastic stresses generated by activity substantially modify the Jeffery orbits well-known from Newtonian fluids. The orientational dynamics depends on the swimmer type; especially pushers can resist flow-induced rotation and align at an angle with the flow. To analyze its impact on bulk rheology, we study a dilute microswimmer suspension in the presence of random tumbling and rotational diffusion. Strikingly, swimmer activity and its elastic response in polymeric fluids alter the orientational distribution and substantially amplify the swimmer-induced viscosity. This suggests that pusher suspensions reach the superfluidic regime at lower volume fractions compared to a Newtonian fluid with identical viscosity.
description: Communications Physics 6, 163 (2023)
Prospects for detection rate of very-high-energy γ-ray emissions from short γ-ray bursts with the HADAR experiment
Creators: name: Chen, Qi-Ling
name: Hu, Pei-Jin
name: Su, Jing-Jing
name: Kang, Ming-Ming
name: Guo, Yi-Qing
name: Chen, Tian-Lu
name: Luo-Bu, Dan-Zeng
name: Fan, Yu-fan
name: Feng, You-Liang
name: Gao, Qi
name: Gou, Quan-Bu
name: Hu, Hong-Bo
name: Li, Hai-Jin
name: Liu, Cheng
name: Liu, Mao-Yuan
name: Liu, Wei
name: Qian, Xiang-Li
name: Qiao, Bing-Qiang
name: Sun, Hui-Ying
name: Wang, Xu
name: Wang, Zhen
name: Xin, Guang-Guang
name: Yao, Yu-Hua
name: Yuan, Qiang
name: Zhang, Yi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The observation of short gamma ray bursts (SGRBs) in the TeV energy range plays an important role in understanding the radiation mechanism and probing new areas of physics such as Lorentz invariance violation. However, no SGRB has been observed in this energy range due to the short duration of SGRBs and the weakness of current experiments. New experiments with new technology are required to detect sub-TeV SGRBs. In this work, we observe the very high energy (VHE) $γ$-ray emissions from SGRBs and calculate the annual detection rate with the High Altitude Detection of Astronomical Radiation HADAR (HADAR) experiment. First, a set of pseudo-SGRB samples is generated and checked using the observations of Fermi-GBM, Fermi-LAT, and SWIFT measurements. The annual detection rate is calculated from these SGRB samples based on the performance of the HADAR instrument. As a result, the HADAR experiment can detect 0.5 SGRB per year if the spectral break-off of $γ$-rays caused by the internal absorption is larger than 100 GeV. For a GRB09010-like GRB in HADAR's view, it should be possible to detect approximately 2000 photons considering the internal absorption. With a time delay assumption due to the Lorentz invariance violation effects, a simulated light curve of GRB090510 has evident energy dependence. We hope that the HADAR experiment can perform the SGRB observations and test our calculations in the future.
Machine-Learning Surrogate Model for Accelerating the Search of Stable Ternary Alloys
Creators: name: Minotakis, Michael
name: Rossignol, Hugo
name: Cobelli, Matteo
name: Sanvito, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The prediction of phase diagrams in the search for new phases is a complex and computationally intensive task. Density functional theory provides, in many situations, the desired accuracy, but its throughput becomes prohibitively limited as the number of species involved grows, even when used with local and semi-local functionals. Here, we explore the possibility of integrating machine-learning models in the workflow for the construction of ternary convex hull diagrams. In particular, we train a set of spectral neighbour-analysis potentials (SNAPs) over readily available binary phases and we establish whether this is good enough to predict the energies of novel ternaries. Such a strategy does not require any new calculations specific for the construction of the model, but just avails of data stored in binary-phase-diagram repositories. We find that a so-constructed SNAP is capable of accurate total-energy estimates for ternary phases close to the equilibrium geometry but, in general, is not able to perform atomic relaxation. This is because during a typical relaxation path a given phase traverses regions in the parameter space poorly represented by the training set. Different metrics are then investigated to assess how an unknown structure is well described by a given SNAP model, and we find that the standard deviation of an ensemble of SNAPs provides a fast and non-specie-specific metric.
Présentation du protocole IIIF - Journées nationales du Patrimoine Écrit 2023
Creators: name: Sajdak, Cécile
Publisher: name: Zenodo
Year: 2023
Subjects: iiif
biblissima
interopérabilité
iiif360
JPE2023

description: Présentation donnée le 16 juin 2023 dans le cadre des Journées nationales du Patrimoine Écrit 2023 (Aix-en-Provence).
description: Ce travail a bénéficié d'une aide de l'État gérée par l'Agence Nationale de la Recherche au titre du programme d'Investissements d'avenir intégré à France 2030 portant la référence ANR-21- ESRE-0005 (Biblissima+).
Direct observation of how the heavy fermion state develops in CeCoIn5
Creators: name: Chen, Q. Y.
name: Xu, D. F.
name: Niu, X. H.
name: Jiang, J.
name: Peng, R.
name: Xu, H. C.
name: Wen, C. H. P.
name: Ding, Z. F.
name: Huang, K.
name: Shu, L.
name: Zhang, Y. J.
name: Lee, H.
name: Strocov, V. N.
name: Shi, M.
name: Bisti, F.
name: Schmitt, T.
name: Huang, Y. B.
name: Dudin, P.
name: Lai, X. C.
name: Kirchner, S.
name: Yuan, H. Q.
name: Feng, D. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Heavy fermion materials gain high electronic masses and expand Fermi surfaces when the high-temperature localized f electrons become itinerant and hybridize with the conduction band at low temperatures. However, despite the common application of this model, direct microscopic verification remains lacking. Here we report high-resolution angle-resolved photoemission spectroscopy measurements on CeCoIn5, a prototypical heavy fermion compound, and reveal the long-sought band hybridization and Fermi surface expansion. Unexpectedly, the localized-to-itinerant transition occurs at surprisingly high temperatures, yet f electrons are still largely localized at the lowest temperature. Moreover, crystal field excitations likely play an important role in the anomalous temperature dependence. Our results paint an comprehensive unanticipated experimental picture of the heavy fermion formation in a periodic multi-level Anderson/Kondo lattice, and set the stage for understanding the emergent properties in related materials.
Mapping the Polarization of the Radio-Loud Ly$α$ Nebula B3 J2330+3927
Creators: name: You, Chang
name: Zabludoff, Ann
name: Smith, Paul
name: Yang, Yujin
name: Kim, Eunchong
name: Jannuzi, Buell
name: Prescott, Moire K. M.
name: Matsuda, Yuichi
name: Lee, Myung Gyoon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Lya nebulae, or "Lya blobs", are extended (up to ~100 kpc), bright (L[Lya] > 10^43 erg/s) clouds of Lya emitting gas that tend to lie in overdense regions at z ~ 2--5. The origin of the Lya emission remains unknown, but recent theoretical work suggests that measuring the polarization might discriminate among powering mechanisms. Here we present the first narrowband, imaging polarimetry of a radio-loud Lya nebula, B3 J2330+3927 at z=3.09, with an embedded active galactic nucleus (AGN). The AGN lies near the blob's Lya emission peak and its radio lobes align roughly with the blob's major axis. With the SPOL polarimeter on the 6.5m MMT telescope, we map the total (Lya + continuum) polarization in a grid of circular apertures of radius 0.6" (4.4kpc), detecting a significant (>2sigma) polarization fraction P in nine apertures and achieving strong upper-limits (as low as 2%) elsewhere. P increases from <2% at ~5kpc from the blob center to ~17% at ~15-25kpc. The detections are distributed asymmetrically, roughly along the nebula's major axis. The polarization angles theta are mostly perpendicular to this axis. Comparing the Lya flux to that of the continuum, and conservatively assuming that the continuum is highly polarized (20-100%) and aligned with the total polarization, we place lower limits on the polarization of the Lya emission P(Lya) ranging from no significant polarization at ~5 kpc from the blob center to ~ 3--17% at 10--25kpc. Like the total polarization, the Lya polarization detections occur more often along the blob's major axis.
description: 9 pages, 7 figures, accepted for publication in ApJ