cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Robust Tests for Treatment Effect in Survival Analysis under Covariate-Adaptive Randomization
Creators: name: Ye, Ting
name: Shao, Jun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Covariate-adaptive randomization is popular in clinical trials with sequentially arrived patients for balancing treatment assignments across prognostic factors which may have influence on the response. However, existing theory on tests for treatment effect under covariate-adaptive randomization is limited to tests under linear or generalized linear models, although covariate-adaptive randomization has been used in survival analysis for a long time and its main application is in survival analysis. Often times, practitioners would simply adopt a conventional test such as the log-rank test or score test to compare two treatments, which is controversial since tests derived under simple randomization may not be valid under other randomization schemes. In this article, we prove that the log-rank test valid under simple randomization is conservative in terms of type I error under covariate-adaptive randomization, and the robust score test developed under simple randomization is no longer robust under covariate-adaptive randomization. We then propose a calibration type log-rank or score test that is valid and robust under both simple randomization and a large family of covariate-adaptive randomization schemes. Furthermore, we obtain Pitman's efficacy of log-rank and score tests to compare their asymptotic relative efficiency. Simulation studies about the type I error and power of various tests are presented under several popular randomization schemes.
A Simple Model for Plastic Dynamics of a Disordered Flux Line Lattice
Creators: name: Bassler, Kevin E.
name: Paczuski, Maya
name: Altshuler, Ernesto
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use a coarse-grained model of superconducting vortices driven through a random pinning potential to study the nonlinear current-voltage (IV) characteristics of flux flow in type II superconductors with pinning. In experiments, the IV relation measures flux flow down a flux density gradient. The work presented here treats this key feature explicitly. As the vortex repulsion weakens, the vortex pile maintains a globally steeper slope, corresponding to a larger critical current, for the same pinning potential. In addition, the magnitude of the peak in the differential resistance falls as the resistance peak shifts to higher currents. The model also exhibits so-called "IV fingerprints", and crossover to Ohmic (linear) behavior at high currents. Thus, many of the varieties of plastic behavior observed experimentally for soft flux line systems in the ``peak regime'' are reproduced in numerical simulations of the zero temperature model. The nonlinear transport behaviors are related to the self-organized, large scale morphologies of the vortex river flow down the slope of the vortex pile. These morphologies include isolated filamentary channels, braided rivers, and flooded rivers. We propose that these self-organized morphologies of flux flow down a flux gradient govern the various plastic flow behaviors, including nonlinear IV characteristics, observed in type II superconductors.
description: 15 pages, 12 figures, much better versions of Figs. 8 and 10 will be sent upon request to bassler@uh.edu A few points have been clarified, and some references added
Lauraceae Juss., Gen. Pl.
Creators: name: Reveal, James L.
name: Chase, Mark W.
name: Iii, - Apg
name: Iii, Apg
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy

description: 27. Lauraceae Juss., Gen. Pl.: 80. 4 Aug 1789, nom. cons.
 Cassythaceae Bartl. ex Lindl., Nix. Pl.: 15. 17 Sep 1833, nom. cons.
 Perseaceae Horan., Prim. Lin. Syst. Nat.: 61. 2 Nov 1834
description: Published as part of Reveal, James L., Chase, Mark W., Iii, - Apg & Iii, Apg, 2011, APG III: Bibliographical Information and Synonymy of Magnoliidae Abstract Kew words Introduction, pp. 71-134 in Phytotaxa 19 (1) on page 74, DOI: 10.11646/phytotaxa.19.1.4, http://zenodo.org/record/10121353
Additional file 10 of miR-30b-5p inhibits proliferation, invasion, and migration of papillary thyroid cancer by targeting GALNT7 via the EGFR/PI3K/AKT pathway
Creators: name: Wang, Ye
name: Wang, Congjun
name: Fu, Zhao
name: Zhang, Siwen
name: Chen, Junqiang
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 10. The results of correlation analysis of GALNT7 and EGFR.
Friction Drag on a Particle Moving in a Nematic Liquid Crystal
Creators: name: Ruhwandl, R. W.
name: Terentjev, E. M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The flow of a liquid crystal around a particle does not only depend on its shape and the viscosity coefficients but also on the direction of the molecules. We studied the resulting drag force on a sphere moving in a nematic liquid crystal (MBBA) in a low Reynold's number approach for a fixed director field (low Ericksen number regime) using the computational artificial compressibility method. Taking the necessary disclination loop around the sphere into account, the value of the drag force anisotropy (F_\perp/F_\parallel=1.50) for an exactly computed field is in good agreement with experiments (~1.5) done by conductivity diffusion measurements. We also present data for weak anchoring of the molecules on the particle surface and of trial fields, which show to be sufficiently good for most applications. Furthermore, the behaviour of the friction close to the transition point nematic isotropic and for a rod-like and a disc-like liquid crystal will be given.
description: 23 pages RevTeX, including 3 PS figures, 1 PS table and 1 PS-LaTeX figure; Accepted for publication in Phys. Rev. E
Viscous Cosmologies
Creators: name: Medina, Sergio Bravo
name: Nowakowski, Marek
name: Batic, Davide
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We probe into universes filled with Quark Gluon Plasma with non-zero viscosities. In particular, we study the evolution of a universe with non-zero shear viscosity motivated by the theoretical result of a non-vanishing shear viscosity in the Quark Gluon Plasma due to quantum-mechanical effects. We first review the consequences of a non-zero bulk viscosity and show explicitly the non-singular nature of the bulk-viscosity-universe by calculating the cosmological scale factor $R(t)$ which goes to zero only asymptotically. We further extend the model of bulk viscosity to include a Cosmological Constant. We contrast the previous results with the cosmology of universes with non-zero shear viscosity. We first clarify under which conditions shear viscosity terms are compatible with the Friedmann-Lamaître-Robertson-Walker metric. To this end we use a version of the energy-momentum tensor from the Müller-Isreal-Stewart theory which leads to causal Navier-Stoke equations. We then derive the corresponding Friedmann equations and show under which conditions the universe emerges non-singular.
description: 49 pages, 18 figures
EXPLAINING PLANET FORMATION AND THE INITIAL MASS FUNCTION OF STARS WITH A UNIVERSE COMPOSED OF MATHEMATICS PLUS RE-EVALUATION OF THE MASS-GRAVITY RELATIONSHIP
Creators: name: Bartlett, Karen
Publisher: name: figshare
Year: 2019
Subjects: subject: Astrophysics
subject: Cosmology
subject: 20105 General Relativity and Gravitational Waves
subject: FOS: Physical sciences
subject: Solar System, Solar Physics, Planets and Exoplanets
subject: Theoretical Computer Science
subject: Geometry
subject: 10112 Topology
subject: FOS: Mathematics
subject: 20203 Particle Physics
subject: Quantum Mechanics

description: The distribution of stellar masses at the birth of stars is called the Initial Mass Function or IMF. Why does the IMF favour the production of low-mass stars? There is a clue in the report that most planetary systems seem to outweigh the protoplanetary disks (PPDs) in which they formed, suggesting there is more to planet formation than the build-up into increasing mass from collisions between the dust particles and rocks in the disk, and leaving astronomers to re-evaluate planet-formation theories. (Manara et al 2018) Science must always be free to question everything: even the long-established idea that mass is the cause of gravity - which, according to General Relativity (Einstein 1915), is the warping and curving of space-time. Exploration of the reverse, that gravity forms mass, sounds absurd to modern science. Yet, it has the potential to explain planet formation and the IMF. This inverse mass-gravity relation uses the well-accepted idea that the universe is described mathematically, being flexible enough to extend that notion and suggest the universe IS maths. It could be produced by binary digits (base-2 maths) and topology, and the gravity that is the warping of space-time could interact with electromagnetism to form the quantum spin of matter particles (½) via vector-tensor-scalar geometry’s photonic spin of 1 being divided by the gravitonic spin of 2. (If the waves focus on a region of space where there’s no matter, the opposite interaction occurs and the graviton’s spin 2 is divided by the photon’s spin 1 to produce 2÷1. The mass produced has the spin inherent in a body of gravitational waves, and could be an alternative method to supernovas for producing black holes since General Relativity says gravity is a push caused by the curvature of space-time.) This geometric attempt at understanding gravity may be seen as related to 4 earlier theories of gravity - Mordehai Milgrom’s 1983 Modified Newtonian Dynamics (MOND), its relativistic generalization known as Jacob Bekenstein’s 2004 Tensor–vector–scalar gravity (TeVeS), the TeVeS extension Bi-scalar tensor vector gravity (BSTV) proposed in 2005 by R.H.Sanders, and John Moffat’s 2006 Scalar–tensor–vector gravity (STVG).
Chloranthales Mart., Consp. Regn. Veg.
Creators: name: Reveal, James L.
name: Chase, Mark W.
name: Iii, - Apg
name: Iii, Apg
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy

description: 8. Chloranthales Mart., Consp. Regn. Veg.: 12. Sep–Oct 1835
description: Published as part of Reveal, James L., Chase, Mark W., Iii, - Apg & Iii, Apg, 2011, APG III: Bibliographical Information and Synonymy of Magnoliidae Abstract Kew words Introduction, pp. 71-134 in Phytotaxa 19 (1) on page 74, DOI: 10.11646/phytotaxa.19.1.4, http://zenodo.org/record/10121353
MOESM5 of Evaluating the role of RAD52 and its interactors as novel potential molecular targets for hepatocellular carcinoma
Creators: name: Li, Ping
name: Xu, YanZhen
name: Zhang, Qinle
name: Li, Yu
name: Jia, Wenxian
name: Wang, Xiao
name: Xie, Zhibin
name: Liu, Jiayi
name: Zhao, Dong
name: Shao, Mengnan
name: Chen, Suixia
name: Mo, Nanfang
name: Jiang, Zhiwen
name: Li, Liuyan
name: Liu, Run
name: Huang, Wanying
name: Chang, Li
name: Chen, Siyu
name: Li, Hongtao
name: Zuo, Wenpu
name: Li, Jiaquan
name: Zhang, Ruoheng
name: Yang, Xiaoli
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 5. The number of dead or alive patients, the number of patients with high or low RAD52, RAD51, XRCC6 and CFL1 expression, and values of log-ranktest and Gehanâ Breslowâ Wilcoxon from the Kaplanâ Meier analysis in TCGA database.
Most Lensed Quasars at $z>6$ are Missed by Current Surveys
Creators: name: Pacucci, Fabio
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The discovery of the first strongly lensed $(μ\approx 50)$ quasar at $z>6$ (J0439+1634) represents a breakthrough in our understanding of the early Universe. We derive the theoretical consequences of the new discovery. We predict that the observed population of $z > 6$ quasars should contain many sources with magnifications $μ\lesssim 10$ and with image separations below the resolution threshold. Additionally, current selection criteria could have missed a substantial population of lensed $z > 6$ quasars, due to the contamination of the drop-out photometric bands by lens galaxies. We argue that this predicted population of lensed $z>6$ quasars would be misclassified and mixed up with low-$z$ galaxies. We quantify the fraction of undetected quasars as a function of the slope of the bright end of the quasar luminosity function, $β$. For $β\lesssim 3.6$, we predict that the undetected lensed quasars could reach half of the population, whereas for $β\gtrsim 4.5$ the vast majority of the $z > 6$ quasar population is lensed and still undetected. This would significantly affect the $z > 6$ quasar luminosity function and inferred black hole mass distributions, with profound implications for the ultraviolet, X-ray, and infrared cosmic backgrounds and the growth of early quasars.
description: Theoretical follow-up of the discovery of J0439+1634, the first lensed z>6 quasar. Published in ApJ Letters: 5 pages, 3 figures
Dynamics of the 1D Heisenberg model and optical absorption of spinons in cuprate antiferromagnetic chains
Creators: name: Lorenzana, J.
name: Eder, R.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We use numerical and analytical results to construct a simple ansatz for the energy dynamical correlation function of the 1D antiferromagnetic Heisenberg model. This is applied to compute the phonon assisted absorption spectra of magnetic excitations (spinons) in quasi-one dimensional spin 1/2 insulators and show to reproduce very well recent infrared measurements in Sr$_2$CuO$_3$.
description: Revtex, 4 pages
Spin Structure Function g_2(x,Q^2) and Twist-3 Operators in large-N_C QCD
Creators: name: Sasaki, Ken
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown in the framework of the operator product expansion and the renormalization group method that the twist-3 part of flavour nonsinglet spin structure function g_2(x,Q^2) obeys a simple Dokshitzer-Gribov- Lipatov-Altarelli-Parisi (DGLAP) equation in the large N_C limit even in the case of massive quarks (N_C is the number of colours). There are four different types of twist-3 operators which contribute to g_2, including quark-mass-dependent operators and the ones proportional to the equation of motion. They are not all independent but are constrained by one relation. A new choice of the independent operator bases leads to a simple form of the evolution equation for g_2 at large N_C.
description: Corrected Ref.[15]
Coarse-grained molecular dynamics simulation for uptake of nanoparticles into a charged lipid vesicle dominated by electrostatic interactions
Creators: name: Shimokawa, Naofumi
name: Ito, Hiroaki
name: Higuchi, Yuji
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use a coarse-grained molecular dynamics simulation to investigate the interaction between neutral or charged nanoparticles (NPs) and a vesicle consisting of neutral and negatively charged lipids. We focus on the interaction strengths of hydrophilic and hydrophobic attraction and electrostatic interactions between a lipid molecule and an NP. A neutral NP passes through the lipid membrane when the hydrophobic interaction is sufficiently strong. As the valence of the positively charged NP increases, the membrane permeation speed of the NP is increased compared with the neutral NP and charged lipids are accumulated around the charged NP. A charged NP with a high valence passes through the lipid membrane via a transient channel formed by charged lipids or transport-like endocytosis. These permeation processes can be classified based on analyses of the density correlation function. When the non-electrostatic interaction parameters are large enough, a negatively charged NP can be adsorbed on the membrane and a neutral lipid-rich region is formed directly below the NP. The NP is spontaneously incorporated into the vesicle under various conditions and the incorporation is mediated by the membrane curvature. We reveal how the NP's behavior depends on the NP valence, size, and the non-electrostatic interaction parameters.
description: main text: 15 pages, 7 figures, supporting information: 13 pages, 11 figures, 2 tables
Power-law correlated phase in random-field XY models and randomly pinned charge-density waves
Creators: name: Fisch, Ronald
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Monte Carlo simulations have been used to study the Z6 ferromagnet in a random field on simple cubic lattices, which is a simple model for randomly pinned charge-density waves. The random field is chosen to have infinite strength on a fraction x of the sites of the lattice, and to be zero on the remaining sites. For x= 1/16 there are two phase transitions. At low temperature there is a ferromagnetic phase, which is stabilized by the six-fold nonrandom anisotropy. The intermediate temperature phase is characterized by a |k|^(-3) decay of two-spin correlations, but no true ferromagnetic order. At the transition between the power-law correlated phase and the paramagnetic phase the magnetic susceptibility diverges, and the two-spin correlations decay approximately as |k|^(-2.87).
description: 16 pages, 8 figures, Postscript
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.2 (2e moitié XIIIe siècle), Cart. 167 (11 H 67), f. 0044r
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2010
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.2 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 167 (11 H 67), f. 0044r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.2 (2e moitié XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 167 (11 H 67), f. 0044r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Chloranthaceae Sims, Bot. Mag.
Creators: name: Reveal, James L.
name: Chase, Mark W.
name: Iii, - Apg
name: Iii, Apg
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy

description: 28. Chloranthaceae R.Br. ex Sims, Bot. Mag. 48: ad t. 2190. 1 Nov 1820, nom. cons.
 Hedyosmaceae Caruel, Atti Reale Accad. Lincei, Mem. Cl. Sci. Fis., ser. 3, 10: 214, 249. 5 Jun 1881 E. Lilianae Takht., Sist. Filog. Cvetk. Rast.: 473. 4 Feb 1967
 Acoranae Reveal, Phytologia 82: 129. 28 Nov 1997
 Alismatanae Takht., Sist. Filog. Cvetk. Rast.: 461. 4 Feb 1967
 Aranae Thorne ex Reveal, Novon 2: 235. 13 Oct 1992
 Arecanae Takht., Sist. Filog. Cvetk. Rast.: 525. 4 Feb 1967
 Bromelianae R.Dahlgren ex Reveal, Novon 2: 235. 13 Oct 1992
 Butomanae Takht. ex Reveal, Novon 2: 235. 13 Oct 1992
 Commelinanae Takht., Sist. Filog. Cvetk. Rast.: 514. 4 Feb 1967
 Cyclanthanae Thorne ex Reveal, Phytologia 79: 71. 29 Apr 1996
 Dioscoreanae Takht. ex Reveal & Doweld, Novon 9: 550. 30 Dec 1999
 Juncanae Takht., Sist. Filog. Cvetk. Rast.: 510. 4 Feb 1967
 Iridanae Doweld, Tent. Syst. Pl. Vasc.: lvi. 23 Dec 2001
 Melanthianae Doweld, Tent. Syst. Pl. Vasc.: lv. 23 Dec 2001
 Najadanae Takht. ex Reveal, Novon 2: 236. 13 Oct 1992
 Orchidanae Doweld, Tent. Syst. Pl. Vasc.: lviii. 23 Dec 2001
 Pandananae Thorne ex Reveal, Novon 2: 236. 13 Oct 1992
 Petrosavianae Doweld, Tent. Syst. Pl. Vasc.: lx. 23 Dec 2001
 Poanae Takht. ex Reveal & Doweld, Novon 9: 550. 30 Dec 1999
 Pontederianae Takht. ex Reveal, Novon 2: 236. 13 Oct 1992
 Rapateanae Doweld, Tent. Syst. Pl. Vasc.: lxii. 23 Dec 2001
 Triuridanae Thorne ex Reveal, Novon 2: 236. 13 Oct 1992
 Typhanae Thorne ex Reveal, Novon 2: 237. 13 Oct 1992
 Zingiberanae Takht. ex Reveal, Phytologia 74: 179. 25 Mar 1993
 Zosteranae Doweld, Tent. Syst. Pl. Vasc.: lviii. 23 Dec 2001
description: Published as part of Reveal, James L., Chase, Mark W., Iii, - Apg & Iii, Apg, 2011, APG III: Bibliographical Information and Synonymy of Magnoliidae Abstract Kew words Introduction, pp. 71-134 in Phytotaxa 19 (1) on pages 74-75, DOI: 10.11646/phytotaxa.19.1.4, http://zenodo.org/record/10121353
Renormalizations in Softly Broken SUSY Gauge Theories
Creators: name: Avdeev, L. V.
name: Kazakov, D. I.
name: Kondrashuk, I. N.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The supergraph technique for calculations in supersymmetric gauge theories where supersymmetry is broken in a "soft" way (without introducing quadratic divergencies) is reviewed. By introducing an external spurion field the set of Feynman rules is formulated and explicit connections between the UV counterterms of a softly broken and rigid SUSY theories are found. It is shown that the renormalization constants of softly broken SUSY gauge theory also become external superfields depending on the spurion field. Their explicit form repeats that of the constants of a rigid theory with the redefinition of the couplings. The method allows us to reproduce all known results on the renormalization of soft couplings and masses in a softly broken theory. As an example the renormalization group functions for soft couplings and masses in the Minimal Supersymmetric Standard Model up to the three-loop level are calculated.
description: Two references are added, "note added" is changed, Latex, 25 pp, no figures
Additional file 1: of Comparison of pleural effusion features and biomarkers between talaromycosis and tuberculosis in non-human immunodeficiency virus-infected patients
Creators: name: Qiu, Ye
name: Zeng, Wen
name: Zhang, Hui
name: Zhong, Xiaoning
name: Tang, Shudan
name: Zhang, Jianquan
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Sources and functions of IL-23 and IFN-Îł (DOCX 16 kb)
Some Observations on Broken Symmetries
Creators: name: Testa, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a general analysis of the field theoretical properties which guarantee the recovery, at the renormalized level, of symmetries broken by regularization. We also discuss the anomalous case.
description: 13 pages, Latex
Resummation at finite conformal spin
Creators: name: Cardona, Carlos
name: Guha, Sunny
name: Kanumilli, Surya Kiran
name: Sen, Kallol
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize the computation of anomalous dimension and correction to OPE coefficients at finite conformal spin considered recently in \cite{arXiv:1806.10919, arXiv:1808.00612} to arbitrary space-time dimensions. By using the inversion formula of Caron-Huot and the integral (Mellin) representation of conformal blocks, we show that the contribution from individual exchanges to anomalous dimensions and corrections to the OPE coefficients for "double-twist" operators $[\mathcal{O}_1\mathcal{O}_2]_{Δ,J}$ in $s-$channel can be written at finite conformal spin in terms of generalized Wilson polynomials. This approach is democratic {\it wrt} space-time dimensions, thus generalizing the earlier findings to cases where closed form expressions of the conformal blocks are not available.
description: Typos corrected, references added. JHEP version
Technical note: optimization of unmanned aerial vehicles flight planning in steep terrains
Creators: name: Manconi, Andrea
name: Ziegler, Martin
name: Blöchliger, Timon
name: Wolter, Andrea
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: We present an approach to manage Unmanned Aerial Vehicle (UAV) photogrammetric data acquisition in areas with steep slopes, i.e., typical conditions of high mountain environments prone to slope instabilities and potentially to catastrophic failures. Starting from the Mission Planner from Ardupilot, an open access and widely used UAV flight planning software, we have developed a set of Matlab™ routines to take into account available topographic relief of the area under investigation. We validated our approach in the Swiss Alps, in a steep slope area where very high-resolution digital models and orthophotos are necessary to analyze fracture surface geometries in detail and to better understand the exfoliation fracture processes. Our results provide a best-practice solution to generate very high-resolution photogrammetric products and can be applied in different UAV mapping tasks and/or monitoring scenarios.
Bounded particle interactions driven by a nonlocal dual Chern-Simons model
Creators: name: Alves, Van Sérgio
name: Marino, E. C.
name: Nascimento, Leandro O.
name: Neto, J. F. Medeiros
name: Ozela, Rodrigo F.
name: Ramos, Rudnei O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quantum electrodynamics (QED) of electrons confined in a plane and that yet can undergo interactions mediated by an unconstrained photon has been described by the so-called {\it pseudo-QED} (PQED), the (2+1)-dimensional version of the equivalent dimensionally reduced original QED. In this work, we show that PQED with a nonlocal Chern-Simons term is dual to the Chern-Simons Higgs model at the quantum level. We apply the path-integral formalism in the dualization of the Chern-Simons Higgs model to first describe the interaction between quantum vortex particle excitations in the dual model. This interaction is explicitly shown to be in the form of a Bessel-like type of potential in the static limit. This result {\it per se} opens exciting possibilities for investigating topological states of matter generated by interactions, since the main difference between our new model and the PQED is the presence of a nonlocal Chern-Simons action. Indeed, the dual transformation yields an unexpected square root of the d'Alembertian operator, namely, $(\sqrt{-\Box})^{-1}$ multiplied by the well-known Chern-Simons action. Despite the nonlocality, the resulting model is still gauge invariant and preserves the unitarity, as we explicitly prove. {}Finally, when coupling the resulting model to Dirac fermions, we then show that pairs of bounded electrons are expected to appear, with a typical distance between the particles being inversely proportional to the topologically generated mass for the gauge field in the dual model.
description: 7 pages. Replaced with version matching published one in the Phys. Lett. B
Kondo and mixed valence regimes in multi-level quantum dots
Creators: name: Chudnovskiy, A. L.
name: Ulloa, S. E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the dependence of the ground state of a multi-level quantum dot on the coupling to an external fermionic system and on the interactions in the dot. As the coupling to the external system increases, the rearrangement of the effective energy levels in the dot signals the transition from the Kondo regime to a mixed valence (MV) regime. The MV regime in a two level dot is characterized by an intrinsic mixing of the levels in the dot, resulting in non-perturbative sub- and super-tunneling phenomena that strongly influence the Kondo effect.
description: REVTEX file with two eps figures
Fibrations, unique path lifting, and continuous monodromy
Creators: name: Fischer, Hanspeter
name: Garcia, Jacob D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57M10, 55Q05, 55R65

description: Given a path-connected space $X$ and $H\leqπ_1(X,x_0)$, there is essentially only one construction of a map $p_H:(\widetilde{X}_H,\widetilde{x}_0)\rightarrow(X,x_0)$ with connected and locally path-connected domain that can possibly have the following two properties: $(p_{H})_{\#}π_1(\widetilde{X}_H,\widetilde{x}_0)=H$ and $p_H$ has the unique lifting property. $\widetilde{X}_H$ consists of equivalence classes of paths starting at $x_0$, appropriately topologized, and $p_H$ is the endpoint projection. For $p_H$ to have these two properties, $T_1$ fibers are necessary and unique path lifting is sufficient. However, $p_H$ always admits the standard lifts of paths. We show that $p_H$ has unique path lifting if it has continuous (standard) monodromies toward a $T_1$ fiber over $x_0$. Assuming, in addition, that $H$ is locally quasinormal (e.g., if $H$ is normal) we show that $X$ is homotopically path Hausdorff relative to $H$. We show that $p_H$ is a fibration if $X$ is locally path connected, $H$ is locally quasinormal, and all (standard) monodromies are continuous.
description: 9 pages; revised abstract and introduction for version 2
Skein spaces and spin structures
Creators: name: Barrett, John W.
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper relates skein spaces based on the Kauffman bracket and spin structures. A spin structure on an oriented 3-manifold provides an isomorphism between the skein space for parameter A and the skein space for parameter -A. There is an application to Penrose's binor calculus, which is related to the tensor calculus of representations of SU(2). The perspective developed here is that this tensor calculus is actually a calculus of spinors on the plane, and the matrices a re determined by a type of spinor transport which generalises to links in any 3-manifold. A second application shows that there is a skein space which is the algebra of functions on the set of spin structures for the 3-manifold.
description: 9 pages, amstex, 15 figures. Revised by a substantial addition to give a geometrical description of all the commutative skein algebras, for A^6=1 (q^3=1)
Acorales Mart., Consp. Regn. Veg.
Creators: name: Reveal, James L.
name: Chase, Mark W.
name: Iii, - Apg
name: Iii, Apg
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy

description: 9. Acorales Mart., Consp. Regn. Veg.: 6. Sep–Oct 1835
description: Published as part of Reveal, James L., Chase, Mark W., Iii, - Apg & Iii, Apg, 2011, APG III: Bibliographical Information and Synonymy of Magnoliidae Abstract Kew words Introduction, pp. 71-134 in Phytotaxa 19 (1) on page 75, DOI: 10.11646/phytotaxa.19.1.4, http://zenodo.org/record/10121353
Self-consistent site-dependent DFT+$U$ study of stoichiometric and defective SrMnO$_3$
Creators: name: Ricca, Chiara
name: Timrov, Iurii
name: Cococcioni, Matteo
name: Marzari, Nicola
name: Aschauer, Ulrich
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose a self-consistent site-dependent Hubbard $U$ approach for DFT+$U$ calculations of defects in complex transition-metal oxides, using Hubbard parameters computed via linear-response theory. The formation of a defect locally perturbs the chemical environment of Hubbard sites in its vicinity, resulting in different Hubbard $U$ parameters for different sites. Using oxygen vacancies in SrMnO$_3$ as a model system, we investigate the dependence of $U$ on the chemical environment and study its influence on the structural, electronic, and magnetic properties of defective bulk and strained thin-film structures. Our results show that a self-consistent $U$ improves the description of stoichiometric bulk SrMnO$_3$ with respect to GGA or GGA+$U$ calculations using an empirical $U$. For defective systems, $U$ changes as a function of the distance of the Hubbard site from the defect, its oxidation state and the magnetic phase of the bulk structure. Taking into account this dependence, in turn, affects the computed defect formation energies and the predicted strain- and/or defect-induced magnetic phase transitions, especially when occupied localized states appear in the band gap of the material upon defect creation.
description: 12 pages (+8 SI), 9 figures (+6 SI)
Time Delay Correlations and Resonances in 1D Disordered Systems
Creators: name: Titov, Mikhail
name: Fyodorov, Yan
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The frequency dependent time delay correlation function $K(Ω)$ is studied analytically for a particle reflected from a finite one-dimensional disordered system. In the long sample limit $K(Ω)$ can be used to extract the resonance width distribution $ρ(Γ)$. Both quantities are found to decay algebraically as $Γ^{-ν}$, and $Ω^{-ν}$, $ν\simeq 1.25$ in a large range of arguments. Numerical calculations for the resonance width distribution in 1D non-Hermitian tight-binding model agree reasonably with the analytical formulas.
description: 4 pages, 2 figures, RevTeX, added reference, corrected misprint
Enhancing the germination of seeds and the seedling growth and development of Pistacia khinjuk stocks via a seed dormancy breaking method
Creators: name: Ersalı, Yusuf
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2024

description: The behaviour of individuals with adaptations that will ensure survival is of critical importance for the continuation  of species during periods when environmental factors reach challenging levels for living beings. In seed plants, this behaviour is achieved through dormancy, in which vital functions are reduced to a minimum. Seed dormancy is not germinating of seeds despite favorable  environmental conditions due to internal and external factors. The impermeable and hard seed coat prevents or delays germination in wild Pistacia seeds, causing problems in the production of rootstocks in the desired numbers. In the present study, dormancy-breaking methods including treatment with sulfuric acid, Gibberellic acid (GA3), 6-Furfurylaminopurine (kinetin), 6-Benzylaminopurine (BAP) and their combination, were tested on P. khinjuk seeds stored at 4°C and 25°C for 6 months after harvest. The seeds were then allowed to germinate for 45 days in sand-filled seedling trays. The germinated seeds were transferred to pots, and the contents of dry and fresh weight, total soluble sugar and protein, chlorophyll a, b and carotenoid of the seedlings were measured after 28 days of the growth and development. It was found that the highest germination rate, dry and fresh weight, total soluble sugar and protein and chlorophyll a,b contents were obtained from seeds that treated with scarification+GA3+BAP and stored at 25°C for 6 months.
description: Journal of Applied Botany and Food Quality, Vol. 97 (2024): Journal of Applied Botany and Food Quality
On the observations of rapid forced reconnection in the solar corona
Creators: name: Srivastava, A. K.
name: Mishra, Sudheer K.
name: Jelínek, P.
name: Samanta, Tanmoy
name: Tian, Hui
name: Pant, Vaibhav
name: Kayshap, P.
name: Banerjee, D.
name: Doyle, J. G.
name: Dwivedi, B. N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Using multiwavelength imaging observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) on 03 May 2012, we present a novel physical scenario for the formation of a temporary X-point in the solar corona, where plasma dynamics is forced externally by a moving prominence. Natural diffusion was not predominant, however, a prominence driven inflow occurred firstly, forming a thin current sheet and thereafter enabling a forced magnetic reconnection at a considerably high rate. Observations in relation to the numerical model reveal that forced reconnection may rapidly and efficiently occur at higher rates in the solar corona. This physical process may also heat the corona locally even without establishing a significant and self-consistent diffusion region. Using a parametric numerical study, we demonstrate that the implementation of the external driver increases the rate of the reconnection even when the resistivity required for creating normal diffusion region decreases at the X-point. We conjecture that the appropriate external forcing can bring the oppositely directed field lines into the temporarily created diffusion region firstly via the plasma inflows as seen in the observations. The reconnection and related plasma outflows may occur thereafter at considerably larger rates.
description: 14 Pages; 07 Figures; The Astrophysical Journal (in press)
The b-quark and Symmetries of the Strong Interaction
Creators: name: Wise, Mark B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Applications of HQET and NRQCD to fragmentation are briefly reviewed. The special role of the b-quark in applications of heavy quark symmetry is discussed. Predictions of HQET for semileptonic B decays to excited charmed mesons are considered.
description: 8 pages, Talk presented at the Twenty Beautiful Years of Bottom Physics Symposium, Chicago, IL, 1997. Discussion of fragmentation parameters is improved
Strings with Non-Relativistic Conformal Symmetry and Limits of the AdS/CFT Correspondence
Creators: name: Harmark, Troels
name: Hartong, Jelle
name: Menculini, Lorenzo
name: Obers, Niels A.
name: Yan, Ziqi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a Polyakov-type action for strings moving in a torsional Newton-Cartan geometry. This is obtained by starting with the relativistic Polyakov action and fixing the momentum of the string along a non-compact null isometry. For a flat target space, we show that the world-sheet theory becomes the Gomis-Ooguri action. From a target space perspective these strings are non-relativistic but their world-sheet theories are still relativistic. We show that one can take a scaling limit in which also the world-sheet theory becomes non-relativistic with an infinite-dimensional symmetry algebra given by the Galilean conformal algebra. This scaling limit can be taken in the context of the AdS/CFT correspondence and we show that it is realized by the `Spin Matrix Theory' limits of strings on AdS$_5$ $\times$ $S^5$. Spin Matrix theory arises as non-relativistic limits of the AdS/CFT correspondence close to BPS bounds. The duality between non-relativistic strings and Spin Matrix theory provides a holographic duality of its own and points towards a framework for more tractable holographic dualities whereby non-relativistic strings are dual to near BPS limits of the dual field theory.
description: 27 pages, LaTex. v2: Typos corrected, matches published version
EXPLAINING PLANET FORMATION AND THE INITIAL MASS FUNCTION OF STARS WITH A UNIVERSE COMPOSED OF MATHEMATICS PLUS RE-EVALUATION OF THE MASS-GRAVITY RELATIONSHIP
Creators: name: Bartlett, Karen
Publisher: name: figshare
Year: 2019
Subjects: subject: Astrophysics
subject: Cosmology
subject: 20105 General Relativity and Gravitational Waves
subject: FOS: Physical sciences
subject: Solar System, Solar Physics, Planets and Exoplanets
subject: Theoretical Computer Science
subject: Geometry
subject: 10112 Topology
subject: FOS: Mathematics
subject: 20203 Particle Physics
subject: Quantum Mechanics

description: This preprint is a never-print. It can never be printed in a science journal because that approach has often been tried, only to see the submission's ideas repeatedly rejected as too speculative and non-mathematical. Professor John Wheeler used to say the early papers on quantum mechanics were regarded as highly speculative. Nevertheless, editors of the 1920s published them (today's editors would be too timid). Maybe the maths in it doesn't qualify as maths since it isn't complicated (Einstein used to say a theory that can't be explained to a 6-year-old isn't really understood by its author). Or maybe editors believe the only real maths is the squiggly lines of algebra.
The distribution of stellar masses at the birth of stars is called the Initial Mass Function or IMF. Why does the IMF favour the production of low-mass stars? There is a clue in the report that most planetary systems seem to outweigh the protoplanetary disks (PPDs) in which they formed, leaving astronomers to re-evaluate planet-formation theories. (AstroNews 2019) Science must always be free to question everything: even the long- established idea that mass is the cause of gravity (by, according to General Relativity (Einstein 1915), warping and curving space-time). Exploration of the reverse, that gravity forms mass, sounds absurd to modern science. Yet, it has the potential to explain planet formation and the IMF.
This inverse mass-gravity relation uses the well-accepted idea that the universe is described mathematically, being flexible enough to extend that notion and suggest the universe IS maths. It could be produced by binary digits (base-2 maths) and topology, and the gravity that is the warping of space-time could interact with electromagnetism to form the quantum spin of matter particles (½) via vector-tensor-scalar geometry’s photonic spin of 1 being divided by the gravitonic spin of 2. This geometric attempt at understanding gravity may be seen as related to 4 earlier theories of gravity - Mordehai Milgrom’s 1983 Modified Newtonian Dynamics (MOND), its relativistic generalization known as Jacob Bekenstein’s 2004 Tensor–vector–scalar gravity (TeVeS), the TeVeS extension Bi-scalar tensor vector gravity (BSTV) proposed in 2005 by R.H.Sanders, and John Moffat’s 2006 Scalar–tensor–vector gravity (STVG).
Quantum tasks in holography
Creators: name: May, Alex
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider an operational restatement of the holographic principle, which we call the principle of asymptotic quantum tasks. Asymptotic quantum tasks are quantum information processing tasks with inputs given and outputs required on points at the boundary of a spacetime. The principle of asymptotic quantum tasks states that tasks which are possible using the bulk dynamics should coincide with tasks that are possible using the boundary. We extract consequences of this principle for holography in the context of asymptotically AdS spacetimes. We argue for a novel connection between bulk causal structure and the phase transition in the boundary mutual information. Further, we note a connection between holography and quantum cryptography, where the problem of completing asymptotic quantum tasks has been studied earlier. We study the cryptographic and AdS/CFT approaches to completing asymptotic quantum tasks and consider the efficiency with which they replace bulk classical geometry with boundary entanglement.
description: New version removes incorrect statements about Markov states
Tunneling measurements of the coulomb pseudogap in a two-dimensional electron system in a quantizing magnetic field
Creators: name: Deviatov, E. V.
name: Shashkin, A. A.
name: Dolgopolov, V. T.
name: Hansen, W.
name: Holland, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the Coulomb pseudogap for tunneling into the two-dimensional electron system of high-mobility (Al,Ga)As/GaAs heterojunctions subjected to a quantizing magnetic field at filling factor $ν\leq 1$. Tunnel current-voltage characteristics show that for the double maximum observed in the tunnel resistance at $ν\approx 1$ the pseudogap is linear in energy with a slope that depends on filling factor, magnetic field, and temperature. We give a qualitative account of the filling factor dependence of the pseudogap slope and we confirm the recently reported appearance of another relaxation time for tunneling at $ν\approx 1$. For the tunnel resistance peaks at $ν=1/3$ and 2/3 a completely different behaviour of the current-voltage curves is found and interpreted as manifestation of the fractional gap.
description: 7 pages, 9 figures included. Accepted to PRB
Minor loops of the Dahl and LuGre models
Creators: name: Ikhouane, Fayçal
name: Mañosa, Víctor
name: Pujol, Gisela
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34C55, 93A30, 93A99, 46T99

description: Hysteresis is a special type of behavior encountered in physical systems: in a hysteretic system, when the input is periodic and varies slowly, the steady-state part of the output-versus-input graph becomes a loop called hysteresis loop. In the presence of perturbed inputs, this hysteresis loop presents small lobes called minor loops that are located inside a larger curve called major loop. The study of minor loops is being increasingly popular since it leads to a quantification of the loss of energy. The aim of the present paper is to give an explicit analytic expression of the minor loops of the LuGre and the Dahl models of dynamic dry friction.
description: 24 pages, 16 figures