cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
RADYNVERSION: Learning to Invert a Solar Flare Atmosphere with Invertible Neural Networks
Creators: name: Osborne, Christopher M. J.
name: Armstrong, John A.
name: Fletcher, Lyndsay
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: During a solar flare, it is believed that reconnection takes place in the corona followed by fast energy transport to the chromosphere. The resulting intense heating strongly disturbs the chromospheric structure, and induces complex radiation hydrodynamic effects. Interpreting the physics of the flaring solar atmosphere is one of the most challenging tasks in solar physics. Here we present a novel deep learning approach, an invertible neural network, to understanding the chromospheric physics of a flaring solar atmosphere via the inversion of observed solar line profiles in Hα and Ca II λ8542. Our network is trained using flare simulations from the 1D radiation hydrodynamics code RADYN as the expected atmosphere and line profile. This model is then applied to single pixels from an observation of an M1.1 solar flare taken with SST/CRISP instrument just after the flare onset. The inverted atmospheres obtained from observations provide physical information on the electron number density, temperature and bulk velocity flow of the plasma throughout the solar atmosphere ranging from 0-10 Mm in height. The density and temperature profiles appear consistent with the expected atmospheric response, and the bulk plasma velocity provides the gradients needed to produce the broad spectral lines whilst also predicting the expected chromospheric evaporation from flare heating. We conclude that we have taught our novel algorithm the physics of a solar flare according to RADYN and that this can be confidently used for the analysis of flare data taken in these two wavelengths. This algorithm can also be adapted for a menagerie of inverse problems providing extremely fast ($\sim$10 μs) inversion samples.
description: Published in ApJ
Magnetic Interaction in Insulating Cuprates
Creators: name: Mizuno, Yoshiaki
name: Tohyama, Takami
name: Maekawa, Sadamichi
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We examine two-spin (2S) and cyclic four-spin (4S) magnetic interactions in insulating ladder and two-dimensional (2D) cuprates. By a comparison of eigenstates between d-p and Heisenberg models, we evaluate magnitudes of these interactions. We find that the 4S interaction is $\sim$10% of nearest neighboring 2S interaction, and a diagonal 2S interaction is considerably small. The 4S interaction for a ladder cuprate is larger than that for 2D one, and plays an important role in the low-energy excitation. The Heisenberg ladder with the obtained 2S and 4S interactions reproduces very well the experimental result of the temperature dependence of the magnetic susceptibility.
description: 7 pages, LaTex,2 figures
Stochastic reconstruction of sandstones
Creators: name: Manwart, C.
name: Torquato, S.
name: Hilfer, R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A simulated annealing algorithm is employed to generate a stochastic model for a Berea and a Fontainebleau sandstone with prescribed two-point probability function, lineal path function, and ``pore size'' distribution function, respectively. We find that the temperature decrease of the annealing has to be rather quick to yield isotropic and percolating configurations. A comparison of simple morphological quantities indicates good agreement between the reconstructions and the original sandstones. Also, the mean survival time of a random walker in the pore space is reproduced with good accuracy. However, a more detailed investigation by means of local porosity theory shows that there may be significant differences of the geometrical connectivity between the reconstructed and the experimental samples.
description: 12 pages, 5 figures
Scrambling and Complexity in Phase Space
Creators: name: Zhuang, Quntao
name: Schuster, Thomas
name: Yoshida, Beni
name: Yao, Norman Y.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The study of information scrambling in many-body systems has sharpened our understanding of quantum chaos, complexity and gravity. Here, we extend the framework for exploring information scrambling to infinite dimensional continuous variable (CV) systems. Unlike their discrete variable cousins, continuous variable systems exhibit two complementary domains of information scrambling: i) scrambling in the phase space of a single mode and ii) scrambling across multiple modes of a many-body system. Moreover, for each of these domains, we identify two distinct `types' of scrambling; genuine scrambling, where an initial operator localized in phase space spreads out and quasi scrambling, where a local ensemble of operators distorts but the overall phase space volume remains fixed. To characterize these behaviors, we introduce a CV out-of-time-order correlation (OTOC) function based upon displacement operators and offer a number of results regarding the CV analog for unitary designs. Finally, we investigate operator spreading and entanglement growth in random local Gaussian circuits; to explain the observed behavior, we propose a simple hydrodynamical model that relates the butterfly velocity, the growth exponent and the diffusion constant. Experimental realizations of continuous variable scrambling as well as its characterization using CV OTOCs will be discussed.
description: 31 pages, 19 figures
Additional file 1: of Accidental intoxications in toddlers: lack of cross-reactivity of vilazodone and its urinary metabolite M17 with drug of abuse screening immunoassays
Creators: name: Martinez-Brokaw, Christina
name: Radke, Joshua
name: Pierce, Joshua
name: Ehlers, Alexandra
name: Ekins, Sean
name: Wood, Kelly
name: Maakestad, Jon
name: Rymer, Jacqueline
name: Tamama, Kenichi
name: Krasowski, Matthew
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology

description: Chemical Synthesis and Characterization of Vilazodone Metabolite M17. (DOCX 27 kb)
Diatoma maculosa Suhr'
Creators: name: Williams, David M.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Rhizophoraceae
Diatoma
Diatoma maculosa

description: 5. ‘ Diatoma maculosa Suhr’
 The name ‘ Diatoma maculosa Suhr’ is also encountered in Kützing’s collection, another name never published but with material in the herbarium: BM 17984 (which is a broken slide) (‘Kützing 760’, “Süd Occidentalis, Binder”). The slide contains only fragments of what Suhr could have named a species of Diatoma but is undoubtedly a species of Biddulphia (Fig. 21).
description: Published as part of Williams, David M., 2021, Studies on type material from Kützing's diatom collection VI: The identity of Diatoma liber Suhr (1831), pp. 215-223 in Phytotaxa 528 (3) on page 220, DOI: 10.11646/phytotaxa.528.3.6, http://zenodo.org/record/5788164
Non-equilibrium DC noise in a Luttinger liquid with impurity
Creators: name: Fendley, P.
name: Saleur, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We compute exactly the non-equilibrium DC noise in a Luttinger liquid with an impurity and an applied voltage. By generalizing Landauer transport theory for Fermi liquids to interacting, integrable systems, we relate this noise to the density fluctuations of quasiparticles. We then show how to compute these fluctuations using the Bethe ansatz. The non-trivial density correlations from the interactions result in a substantial part of the non-equilibrium noise. The final result for the noise is a scaling function of the voltage, temperature and impurity coupling. It may eventually be observable in tunneling between edges of a fractional quantum Hall effect device.
description: 10 pages with one figure, uses revtex and epsf
Additional file 5: of Adaptation and psychometric evaluation of the breastfeeding self-efficacy scale to assess exclusive breastfeeding
Creators: name: Godfred Boateng
name: Martin, Stephanie
name: Tuthill, Emily
name: Shalean Collins
name: Cindy-Lee Dennis
name: Natamba, Barnabas
name: Sera Young
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: Table S4. Measures of Discriminant validity: Population correlation estimates of the Breastfeeding Self-Efficacy Scale to Measure Exclusive Breastfeeding with Exclusive Breastfeeding Social Support and Depression Scores using Latent Variable Modeling with model fit indices at 1â month postpartum (nâ =â 239) (PDF 91 kb)
Observation of the Shadowing of Cosmic Rays by the Moon using a Deep Underground Detector
Creators: name: The MACRO Collaboration
name: al, M. Ambrosio et
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the moon in the underground cosmic ray flux with a significance of 3.6 sigma. This detection of the shadowing effect is the first by an underground detector. A maximum-likelihood analysis is used to determine that the angular resolution of the apparatus is 0.9+/-0.3 degrees. These results demonstrate MACRO's capabilities as a muon telescope by confirming its absolute pointing ability and quantifying its angular resolution.
description: 14 pages, 8 figures Submitted to Phys. Rev. D
Dualities and inhomogeneous phases in dense quark matter with chiral and isospin imbalances in framework of effective model
Creators: name: Khunjua, T. G.
name: Klimenko, K. G.
name: Zhokhov, R. N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been shown in [32,33] in the framework of Nambu--Jona-Lasinio model with the assumption of spatially homogeneous condensates that in the large-$N_{c}$ limit ($N_{c}$ is the number of quark colours) there exist three dual symmetries of the thermodynamic potential, which describes dense quark matter with chiral and isospin imbalances. The main duality is between the chiral symmetry breaking and the charged pion condensation phenomena. There have been a lot of studies and hints that the ground state could be characterized by spatially inhomogeneous condensates, so the question arises if duality is a rather deep property of the phase structure or just accidental property in the homogeneous case. In this paper we have shown that even if the phase diagram contains phases with spatially inhomogeneous condensates, it still possesses the property of this main duality. Two other dual symmetries are not realized in the theory if it is investigated within an inhomogeneous approach to a ground state. From various earlier studied aspects of QCD phase diagram of isospin asymmetric matter with possible inhomogeneous condensates, in the present paper the unified picture and full phase diagram of isospin imbalanced dense quark matter have been assembled. Acting on this diagram by a dual transformation, we obtained, in the framework of an approach with spatially inhomogeneous condensates and without any calculations, a full phase diagram of chirally asymmetric dense medium. This example shows that the duality is not just entertaining mathematical property but an instrument with very high predictivity power. The obtained phase diagram is quite rich and contains various spatially inhomogeneous phases.
description: 11 pages, 2 figures, discussions added, typos corrected
The Metric Space of Collider Events
Creators: name: Komiske, Patrick T.
name: Metodiev, Eric M.
name: Thaler, Jesse
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: When are two collider events similar? Despite the simplicity and generality of this question, there is no established notion of the distance between two events. To address this question, we develop a metric for the space of collider events based on the earth mover's distance: the "work" required to rearrange the radiation pattern of one event into another. We expose interesting connections between this metric and the structure of infrared- and collinear-safe observables, providing a novel technique to quantify event modifications due to hadronization, pileup, and detector effects. We showcase how this metrization unlocks powerful new tools for analyzing and visualizing collider data without relying upon a choice of observables. More broadly, this framework paves the way for data-driven collider phenomenology without specialized observables or machine learning models.
description: 7 pages, 6 figures; v2: citations added; v3: approximate version to appear in PRL
Analytic Solution of the Pion-Laser Model
Creators: name: Csorgo, T.
name: Zimanyi, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Brooding over bosons, wave packets and Bose - Einstein correlations, we find that a generalization of the pion-laser model for the case of overlapping wave-packets is analytically solvable with complete n-particle symmetrization. The effective radius parameter of the two-particle correlation function is reduced for low values and enlargened for high values of the mean momentum in the rare gas limiting case, as compared to the case when multi-particle symmetrization effects are neglected. These results explicitly depend on the multiplicity, providing a theoretical basis for event-by-event analysis of high energy heavy ion reactions.
description: LaTeX, ReVTeX 3.1, 7 pages, uses 1 eps figure and epsfig.sty (shortened version)
Biddulphia trilocularis Kutzing 1844
Creators: name: Williams, David M.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Bacillariophyceae
Biddulphiales
Biddulphiaceae
Biddulphia
Biddulphia trilocularis

description: 6. Biddulphia trilocularis Kützing 1844, p. 138, pl. 29, fig. 89
 Kützing provides a very brief description of Biddulphia trilocularis, lists two localities (“ Insel Cuba: Peru ”) and cites two illustrations from Ehrenberg (Biddulphia pulchella from Ehrenberg 1843, Taf. I, iii, fig. 25, Peru, and Denticella biddulphia from Ehrenberg 1843, Taf. II, vi, fig. 19, Cuba), noting that “Vielleicht gehört hierher auch Denticella Tridens Ehrenbg. Kreideth. 1839. p. 73” (Kützing 1844 p. 138). Kützing’s own illustration (1844, pl. 29, fig. 89, see Fig. 22) is quite possibly a reproduction, or re-drawing, of Ehrenberg’s Denticella biddulphia (Ehrenberg 1843, Taf. II, vi, fig. 19, Cuba) (Figs 23, 24) as there are no specimens in Kützing’s collection for Biddulphia trilocularis.
 Kützing’s Biddulphia trilocularis was probably intended as a new name for Denticella biddulphia Ehrenberg (1843, Taf. II, vi, fig. 19), the nomenclature of this species (or groups of species) is somewhat complex and needs to be dealt with separately.
description: Published as part of Williams, David M., 2021, Studies on type material from Kützing's diatom collection VI: The identity of Diatoma liber Suhr (1831), pp. 215-223 in Phytotaxa 528 (3) on pages 220-222, DOI: 10.11646/phytotaxa.528.3.6, http://zenodo.org/record/5788164
Additional file 1: of Prescribing of diabetes medications to people with type 2 diabetes and chronic kidney disease: a national cross-sectional study
Creators: name: Jo-Anne Manski-Nankervis
name: Sharmala Thuraisingam
name: Sluggett, Janet
name: Kilov, Gary
name: Furler, John
name: OâNeal, David
name: Jenkins, Alicia
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: 60506 Virology
subject: Computational Biology

description: Table S1. List of non-insulin diabetes medications available in Australia. This table summarises non-insulin diabetes medications (generic and brand names) available in Australia at the time this study was conducted. (DOCX 16 kb)
Structure, Stresses and Local Dynamics in Glasses
Creators: name: Kustanovich, Tamar
name: Olami, Zeev
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The interrelations between short range structural and elastic aspects in glasses and glass forming liquids pose important and yet unresolved questions. In this paper these relations are analyzed for mono-atomic glasses and stressed liquids with a short range repulsive-attractive pair potentials. Strong variations of the local pressure are found even in a zero temperature glass, whereas the largest values of pressure are the same in both glasses and liquids. The coordination number z(J) and the effective first peak radius depend on the local pressures J's. A linear relation was found between components of site stress tensor and the local elastic constants. A linear relation was also found between the trace of the squares of the local frequencies and the local pressures. Those relations hold for glasses at zero temperature and for liquids. We explain this by a relation between the structure and the potential terms. A structural similarity between liquids and solids is manifested by similar dependencies of the coordination number on the pressures.
description: 7 pages, 11 figures
Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer
Creators: name: Xia, Jing
name: Zhang, Xichao
name: Ezawa, Motohiko
name: Hou, Zhipeng
name: Wang, Wenhong
name: Liu, Xiaoxi
name: Zhou, Yan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the current-driven dynamics of frustrated skyrmions in an antiferromagnetically exchange coupled bilayer system, where the bilayer skyrmion consists of two monolayer skyrmions with opposite skyrmion numbers $Q$. We show that the in-plane current-driven bilayer skyrmion moves in a straight path, while the out-of-plane current-driven bilayer skyrmion moves in a circular path. It is found that the in-plane current-driven mobility of a bilayer skyrmion is much better than the monolayer one at a large ratio of $β/α$, where $α$ and $β$ denote the damping parameter and non-adiabatic spin transfer torque strength, respectively. Besides, the out-of-plane current-driven mobility of a bilayer skyrmion is much better than the monolayer one when $α$ is small. We also reveal that one bilayer skyrmion (consisting of monolayer skyrmions with $Q=\pm 2$) can be separated to two bilayer skyrmions (consisting of monolayer skyrmions with $Q=\pm 1$) driven by an out-of-plane current. Our results may be useful for designing skyrmionic devices based on frustrated multilayer magnets.
description: 7 pages, 4 figures
Additional file 2: of Prescribing of diabetes medications to people with type 2 diabetes and chronic kidney disease: a national cross-sectional study
Creators: name: Jo-Anne Manski-Nankervis
name: Sharmala Thuraisingam
name: Sluggett, Janet
name: Kilov, Gary
name: Furler, John
name: OâNeal, David
name: Jenkins, Alicia
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Marine Biology
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Table S2. Prescription of non-insulin diabetes medications by eGFR for patients with average eGFR <60 ml/min/1.73m2. This table summarises the prescription of non-insulin diabetes medications by average eGFR consistent with stage 3a, 3b, 4 and 5 chronic kidney disease. (DOCX 24 kb)
Quasiparticle dispersion and lineshape in a strongly correlated liquid with the fermion condensate
Creators: name: Amusia, M. Ya.
name: Shaginyan, V. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A model of a strongly correlated electron liquid based on the fermion condensation (FC) is applied to the consideration of high temperature superconductors in its superconducting and normal states. Within our model the appearance of FC presents a boundary, separating the region of strongly interacting electron liquid from the region of strongly correlated electron liquid. We show that at temperatures $T
description: 8 pages, LaTeX
ψ-HORIZON: The Limit of Difference and the Disappearance of the World
Creators: name: Yulia, Logacheva
Publisher: name: Zenodo
Year: 2025
Subjects: ψ-theory, difference, event horizon, ontology, time, perception, cosmology, gravitational disappearance, structure, ontological limit, emergence, ψ-horizon, potentiality, silence

description: This paper introduces the concept of the ψ-horizon, an ontological boundary where difference does not vanish, but becomes hidden, condensed, and intense. As a continuation of the ψ¹⁷³–ψ²⁰⁰ cycle, which revealed the genesis of the world as a structured emergence of difference, this work investigates the limit of perception, being, and time. Through a seven-phase model, the ψ-horizon is described as a point of maximum concealment, where form collapses, but difference remains — tense, silent, and ready for re-emergence. The work proposes a new structural ontology of disappearance, contrasting classical models of collapse and offering a foundation for future cosmological, philosophical, and perceptual frameworks.
Molecular Dissociation in Hot, Dense Hydrogen
Creators: name: Magro, W. R.
name: Ceperley, D. M.
name: Pierleoni, C.
name: Bernu, B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present a path-integral Monte Carlo study of dissociation in dense hydrogen ($1.75 \leq r_s \leq 2.2$, with $r_s$ the Wigner sphere radius). As temperature is lowered from $10^5$ to 5000 K, a molecular hydrogen gas forms spontaneously from a neutral system of protons and electrons. At high density, $r_s < 2.0$, thermally activated dissociation is accompanied by decreasing pressure, signaling the presence of a first order transition and critical point. The decrease in electron kinetic energy during dissociation is responsible for the pressure decrease and transition. At lower density the phase transition disappears.
description: 5 pages, RevTeX + 4 figures, to appear in Physical Review Letters, online version available at http://www.tc.cornell.edu/~wmagro/
Cardy-like asymptotics of the 4d $\mathcal{N}=4$ index and AdS$_5$ blackholes
Creators: name: Ardehali, Arash Arabi
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Choi, Kim, Kim, and Nahmgoong have recently pioneered analyzing a Cardy-like limit of the superconformal index of the 4d $\mathcal{N}=4$ theory with complexified fugacities which encodes the entropy of the dual supersymmetric AdS$_5$ blackholes. Here we study the Cardy-like asymptotics of the index within the rigorous framework of elliptic hypergeometric integrals, thereby filling a gap in their derivation of the blackhole entropy function, finding a new blackhole saddle-point, and demonstrating novel bifurcation phenomena in the asymptotics of the index as a function of fugacity phases. We also comment on the relevance of the supersymmetric Casimir energy to the blackhole entropy function in the present context.
description: v4: 27 pages, 4 figures; comments added on the center symmetry breaking
Atomic parity violation in cesium and implications for new physics
Creators: name: Deandrea, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent high-precision measurements of atomic parity-nonconserving transitions between the 6S and 7S states of cesium allow for a determination of the weak nuclear charge with a precision of 1.3%, providing an improved test of the standard model at low energy. Implications for new physics are examined in terms of low energy effects on the weak charge, in particular contact interactions and scalar leptoquark limits. Prospects for further improvements are described.
description: 12 pages, 4 figures, LaTeX (epsf, aps, revtex), 4 references added, no other changes with respect to the original version, to appear in Phys. Lett. B
A non-relativistic magnetized vector boson gas at any temperature
Creators: name: Suárez-González, L. C.
name: Angulo, G. Quintero
name: Martínez, A. Pérez
name: Rojas, H. Pérez
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the thermodynamic properties of a neutral vector boson gas in presence of a constant magnetic field, by means of a semi-classical approach that allows to introduce the spin in the non-relativistic spectrum of the bosons. Bose-Einstein condensation is obtained and it turns out to depend on all the parameters involved in the problem: temperature, particle density and magnetic field. An spontaneous magnetization appears at low temperature as a consequence of the condensed state. The axial symmetry imposed in the system by the magnetic field presence, splits the pressure in two components, one along and another perpendicular to the magnetic axis. Under certain conditions, the perpendicular pressure becomes negative signaling that the system undergoes a transversal magnetic collapse. The spontaneous magnetization might be useful to model magnetic field production inside compact stars, while the negative pressures imposes certain limits to the temperatures and densities needed inside these objects to support a given magnetic field.
On the blowups of numerical Godeaux surfaces
Creators: name: Kotschick, D.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We give a short proof of the following result: Let $X$ be a complex surface of general type. If the canonical divisor of the minimal model of $X$ has selfintersection $= 1$, then $X$ is not diffeomorphic to a rational surface. Our proof is the natural extension of the argument given in our paper in Inventiones Mathematicae (1989) for the case when $X$ is minimal. This argument also gives information about the non--existence of certain smooth embeddings of $2$--spheres in $X$, if $X$ has geometric genus zero.
description: 5 pages, AMSLaTeX
Pseudogap and Superconducting Gap in Y-123: A Raman Study
Creators: name: Opel, Matthias
name: Götzinger, Martin
name: Hoffmann, Christian
name: Nemetschek, Ralf
name: Philipp, Richard
name: Venturini, Francesca
name: Hackl, Rudi
name: Erb, Andreas
name: Walker, Eric
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present results of electronic Raman-scattering experiments in differently doped Y-123. In B2g symmetry, an analysis of the data in terms of a memory function approach is presented and dynamical relaxation rates $Γ(ω,T)$ and mass-enhancement factors $1+λ(ω,T)$ for the carriers are obtained. Starting from temperatures T > 180K, $Γ(ω,T)$ and $1+λ(ω,T)$ are extrapolated to lower temperatures and used to re-calculate Raman spectra. By comparison with our data, we find a loss of spectral weight between Tc < T < T* at all doping levels x. T* is comparable to the pseudogap temperature found in other experiments. Below Tc, the superconducting gap is observed. It depends on x and scales with Tc whereas the energy scale of the pseudogap remains the same.
description: 5 pages, 5 EPS figures; MOS'99 Proceedings to appear in J. Low Temp. Phys
Analytical solutions to renormalization-group equations of effective neutrino masses and mixing parameters in matter
Creators: name: Wang, Xin
name: Zhou, Shun
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, a complete set of differential equations for the effective neutrino masses and mixing parameters in matter have been derived to characterize their evolution with respect to the ordinary matter term $a \equiv 2\sqrt{2}G^{}_{\rm F} N^{}_e E$, in analogy with the renormalization-group equations (RGEs) for running parameters. Via series expansion in terms of the small ratio $α^{}_{\rm c} \equiv Δ^{}_{21}/Δ^{}_{\rm c}$, we obtain approximate analytical solutions to the RGEs of the effective neutrino parameters and make several interesting observations. First, at the leading order, $\widetildeθ^{}_{12}$ and $\widetildeθ^{}_{13}$ are given by the simple formulas in the two-flavor mixing limit, while $\widetildeθ^{}_{23} \approx θ^{}_{23}$ and $\widetildeδ \approx δ$ are not changed by matter effects. Second, the ratio of the matter-corrected Jarlskog invariant $\widetilde{\cal J}$ to its counterpart in vacuum ${\cal J}$ approximates to $\widetilde{\cal J}/{\cal J} \approx 1/(\widehat{C}^{}_{12} \widehat{C}^{}_{13})$, where $\widehat{C}^{}_{12} \equiv \sqrt{1 - 2 A^{}_* \cos 2θ^{}_{12} + A^2_*}$ with $A^{}_* \equiv a/Δ^{}_{21}$ and $\widehat{C}^{}_{13} \equiv \sqrt{1 - 2 A^{}_{\rm c} \cos 2θ^{}_{13} + A^2_{\rm c}}$ with $A^{}_{\rm c} \equiv a/Δ^{}_{\rm c}$. Finally, after taking higher-order corrections into account, we find compact and simple expressions of all the effective parameters.
description: 20 pages, 8 figures. More discussions added, to be published in JHEP
Scale-Invariant Structure Saliency Selection for Fast Image Fusion
Creators: name: Liang, Yixiong
name: Mao, Yuan
name: Xia, Jiazhi
name: Xiang, Yao
name: Liu, Jianfeng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we present a fast yet effective method for pixel-level scale-invariant image fusion in spatial domain based on the scale-space theory. Specifically, we propose a scale-invariant structure saliency selection scheme based on the difference-of-Gaussian (DoG) pyramid of images to build the weights or activity map. Due to the scale-invariant structure saliency selection, our method can keep both details of small size objects and the integrity information of large size objects in images. In addition, our method is very efficient since there are no complex operation involved and easy to be implemented and therefore can be used for fast high resolution images fusion. Experimental results demonstrate the proposed method yields competitive or even better results comparing to state-of-the-art image fusion methods both in terms of visual quality and objective evaluation metrics. Furthermore, the proposed method is very fast and can be used to fuse the high resolution images in real-time. Code is available at https://github.com/yiqingmy/Fusion.
Scaling of fluctuation for Directed polymers with random interaction
Creators: name: Mukherji, Sutapa
name: Bhattacharjee, Somendra M.
name: Baumgärtner, A.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Using a finite size scaling form for reunion probability, we show numerically the existence of a binding-unbinding transition for Directed polymers with random interaction. The cases studied are (A1) two chains in 1+1 dimensions, (A2) two chains in 2+1 dimensions and (B) three chains in 1+1 dimensions. A similar finite size scaling form for fluctuation establishes a disorder induced transition with identical exponents for cases A2 and B. The length scale exponents in all the three cases are in agreement with previous exact renormalization group results.
description: Revtex, 4 postscript figures available on request (email: sb@iopb.ernet.in); To appear in J. Phys. A Letters
Multistep Strongly First Order Phase Transitions from New Fermions at the TeV Scale
Creators: name: Angelescu, Andrei
name: Huang, Peisi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In spite of the vast literature on the subject of first order Electroweak Phase Transitions (EWPTs), which can provide the necessary conditions for generating the Baryon Asymmetry in the Universe, fermion-induced EWPTs still remain a rather uncharted territory. In this paper, we consider a simple fermionic extension of the Standard Model involving one $SU(2)_L$ doublet and two $SU(2)_L$ singlet Vector-Like Leptons, strongly coupled to the Higgs boson and with masses close to the TeV scale. We show how such a simple scenario can give rise to a non-trivial thermal history of the Universe, involving strongly first order multistep phase transitions occurring at temperatures close to the electroweak scale. Finally, we investigate the distinct Gravitational Wave (GW) signatures of these phase transitions at future space--based GW detectors, such as LISA, DECIGO, and BBO, and briefly discuss the possible LHC signatures of the Vector-Like Leptons.
description: 29 pages, 7 figures, 3 tables; v2: references added, matches published version
Additional file 4: of Adaptation and psychometric evaluation of the breastfeeding self-efficacy scale to assess exclusive breastfeeding
Creators: name: Godfred Boateng
name: Martin, Stephanie
name: Tuthill, Emily
name: Shalean Collins
name: Cindy-Lee Dennis
name: Natamba, Barnabas
name: Sera Young
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Table S3. Indicators of Validity for Cognitive and Functional sub-scales of the BSES-EBF Scale at 1,3, and 6â months postpartum among Ugandan women (Nâ =â 239). (DOCX 14 kb)
Superconducting joining of melt-textured Y-Ba-Cu-O bulk material
Creators: name: Prikhna, T.
name: Gawalek, W.
name: Moshchil, V.
name: Surzhenko, A.
name: Kordyuk, A.
name: Litzkendorf, D.
name: Dub, S.
name: Melnikov, V.
name: Plyushchay, A.
name: Sergienko, N.
name: Koval', A.
name: Bokoch, S.
name: Habisreuther, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Tm-Ba-Cu-O solder can be successfully used to produce a superconductive joint between MT-YBCO parts. The peculiarities of solidification, phase formation, structure transformations and electromagnetic properties of MT-YBCO soldered with TmBa2Cu3O7-d are discussed.
description: PS of 6 pages text and 5 figures, presented at ICMC'2000, Brasil
Thrust Distribution in Electron-Positron Annihilation using the Principle of Maximum Conformality
Creators: name: Wang, Sheng-Quan
name: Brodsky, Stanley J.
name: Wu, Xing-Gang
name: Di Giustino, Leonardo
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a comprehensive and self-consistent analysis for the thrust distribution by using the Principle of Maximum Conformality (PMC). By absorbing all nonconformal terms into the running coupling using PMC via renormalization group equation, the scale in the running coupling shows the correct physical behavior and the correct number of active flavors is determined. The resulting PMC predictions agree with the precise measurements for both the thrust differential distributions and the thrust mean values. Moreover, we provide a new remarkable way to determine the running of the coupling constant $α_s(Q^2)$ from the measurement of the jet distributions in electron-positron annihilation at a single given value of the center-of-mass energy $\sqrt{s}$.
description: 6 pages, 4 figures, v2: matches published version
MPEC 2025-D59 : 2025 DN1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DN1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Premessa
Creators: name: Canfora, Luciano
Publisher: name: FuturoClassico FCl
Year: 2023
Subjects: Realismo politico; ricezione; convegno di studi

description: Introduzione all'incontro di studi sul tema "Realismo politico e sua ricezione", tenutosi a Bari, su iniziativa del Centro Interuniversitario di Ricerca di Studi sulla Tradizione nei giorni 5 e 6 dicembre 2022.
description: FuturoClassico FCl, N. 9 (2023)
Realismo politico della storiografia greca e romana
Creators: name: Canfora, Luciano
Publisher: name: FuturoClassico FCl
Year: 2023
Subjects: Lysander; Plutarch; try the vanquished.

description: A common thread in Greek and Roman historiography, which is generally the history of the ruling elites, is the Realpolitik perspective that influenced the entire development of later historiography.
description: FuturoClassico FCl, N. 9 (2023)
Interacting fermions in an expanding spacetime
Creators: name: Machado, L. N.
name: Costa, H. A. S.
name: da Paz, I. G.
name: Sampaio, M.
name: Araujo, Jonas B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We evaluate the effect of quantum electrodynamics on the correlations between Dirac field modes corresponding electron-positron pairs of opposite momenta generated by expansion of an asymptotically flat Friedmann-Robertson-Walker (FRW) universe. The mutual information of out-going electron-positron pairs is evaluated to leading order in the coupling strength and compared with the free case. It is shown a decrease in the mutual information between the electron and positron. In addition, it is found that the change in the electron-positron mutual information depends on how the momentum is distributed between the positron and photon modes.
description: 11 pages, 6 figures. To appear in Physical Review D
An Exactly Solvable Two-Way Traffic Model With Ordered Sequential Update
Creators: name: Fouladvand, M. E.
name: Lee, H. -W.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Within the formalism of matrix product ansatz, we study a two-species asymmetric exclusion process with backward and forward site-ordered sequential update. This model, which was originally introduced with the random sequential update, describes a two-way traffic flow with a dynamic impurity and shows a phase transition between the free flow and traffic jam. We investigate the characteristics of this jamming and examine similarities and differences between our results and those with random sequential update.
description: 25 pages, Revtex, 7 ps files
La restaurazione repubblicana di Augusto tra realtà e propaganda: riflessioni sulla politica a tutela della famiglia
Creators: name: Rohr Vio, Francesca
Publisher: name: FuturoClassico FCl
Year: 2023
Subjects: Augustus; family legislation; legend; ruling class; politics.

description: The paper studies the intervention carried out by Augustus during his principate to defend the family and the aristocratic ethos. For this purpose, the princeps submitted for approval an articulate legislative program and carried out multiple actions to affect the mentality of the Roman citizens. Historiography contributed to this second strategy: it intervened in the legends of the Royal Age and of the beginning of the Republic, and it highlighted episodes and personalities that constituted models for the public and private life of the Roman citizens and legitimized Augustus’ actions, constituting authoritative precedents for them. Therefore, the legend, established over a long period, ensured that Augustus' government, which was functional to the renewal of the ruling class, was, on the contrary, a restoration of the ancient practices.
description: FuturoClassico FCl, N. 9 (2023)
Non--trivial harmonic spinors on generic algebraic surfaces
Creators: name: Kotschick, D.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We disprove Hitchin's conjecture to the effect that for a generic complex structure on a simply connected spin complex surface the square root of the canonical bundle has no more cohomology then is predicted by the Riemann--Roch theorem. (This paper will appear in Proc. Amer. Math. Soc.)
description: 4 pages, AMSLaTeX
Measurement of inclusive D*+- and associated dijet cross sections in photoproduction at HERA
Creators: name: ZEUS Collaboration
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Inclusive photoproduction of D*+- mesons has been measured for photon-proton centre-of-mass energies in the range 130 < W < 280 GeV and a photon virtuality Q^2 < 1 GeV^2. The data sample used corresponds to an integrated luminosity of 37 pb^-1. Total and differential cross sections as functions of the D* transverse momentum and pseudorapidity are presented in restricted kinematical regions and the data are compared with next-to-leading order (NLO) perturbative QCD calculations using the "massive charm" and "massless charm" schemes. The measured cross sections are generally above the NLO calculations, in particular in the forward (proton) direction. The large data sample also allows the study of dijet production associated with charm. A significant resolved as well as a direct photon component contribute to the cross section. Leading order QCD Monte Carlo calculations indicate that the resolved contribution arises from a significant charm component in the photon. A massive charm NLO parton level calculation yields lower cross sections compared to the measured results in a kinematic region where the resolved photon contribution is significant.
description: 32 pages including 6 figures
Additional file 3: of Adaptation and psychometric evaluation of the breastfeeding self-efficacy scale to assess exclusive breastfeeding
Creators: name: Godfred Boateng
name: Martin, Stephanie
name: Tuthill, Emily
name: Shalean Collins
name: Cindy-Lee Dennis
name: Natamba, Barnabas
name: Sera Young
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Plant Biology

description: Table S2. Confirmatory Factor Analysis Modification Indices Output from Mplus showing WITH statements for model re-specification. (PDF 52 kb)
Conscience Issue Tracker - February 2025
Creators: name: Prouse, Chantal
name: Charlotte, Tyhurst
name: Jolicoeur-Becotte, Marie
name: Bechthold, Kristina
name: Miksza, Jerod
name: Lamberti, Dylan
name: Barclay, Christophe
name: Gold, E. Richard
Publisher: name: Conscience
Year: 2025

description: Conscience Issue Tracker - February 2025

Issues in this edition:

Canada positioned to take advantage of US cuts to science

The US Supreme Court blocked a major settlement

The WHO has raised serious concerns about the impact of the United States' pause on foreign aid contributions

Canadian researchers and archivists are leading an international effort to preserve US government data
Analysis of Kπ-scattering phase shift and existence of κ(900)-particle
Creators: name: Ishida, Shin
name: Ishida, Muneyuki
name: Ishida, Taku
name: Takamatsu, Kunio
name: Tsuru, Tsuneaki
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently we have shown an evidence for existence of σ-particle in the previous works; where the ππS-wave phase shift is reanalyzed, by introducing a repulsive background suggested by the chiral symmetry, and by applying a new method of Interfering Breit-Wigner Amplitudes. In this work we also show, reanalyzing the KπS-wave phase shift from a similar standpoint, an evidence for existence of κ(900), possibly to be a member of σ-nonet.
description: tex with PTP style, 2 eps figures
Layering transitions in superfluid helium adsorbed on a carbon nanotube mechanical resonator
Creators: name: Noury, Adrien
name: Vergara-Cruz, Jorge
name: Morfin, Pascal
name: Plaçais, Bernard
name: Gordillo, Maria Carmen
name: Boronat, Jordi
name: Balibar, Sébastien
name: Bachtold, Adrian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Helium is recognized as a model system for the study of phase transitions. Of particular interest is the superfluid phase in two dimensions. We report measurements on superfluid helium films adsorbed on the surface of a suspended carbon nanotube. We measure the mechanical vibrations of the nanotube to probe the adsorbed helium film. We demonstrate the formation of helium layers up to five atoms thickness. Upon increasing the vapour pressure, we observe layer-by-layer growth with discontinuities in both the number of adsorbed atoms and the speed of sound in the adsorbed film. These hitherto unobserved discontinuities point to a series of first-order layering transitions. Our results show that helium multilayers adsorbed on a nanotube are of unprecedented quality compared to previous works. They pave the way to new studies of quantized superfluid vortex dynamics on cylindrical surfaces, of the Berezinskii-Kosterlitz-Thouless phase transition in this new geometry, perhaps also to supersolidity in crystalline single layers as predicted in quantum Monte Carlo calculations.
description: 10 pages, 3 figures
Le "realtà del potere" a Roma: due punti di vista
Creators: name: Santangelo, Federico
Publisher: name: FuturoClassico FCl
Year: 2023
Subjects: Tacitus; Asinius Pollio; Tacitism; Ronald Syme; Roman imperialism; Realism.

description: This paper explores the applicability of the notion of “realities of power” to the study of Roman history through the discussion of two case studies: Ronald Syme’s assessment of Asinius Pollio in The Roman Revolution, and recent debates on the use of the realist paradigm in the study of Roman imperialism.
description: FuturoClassico FCl, N. 9 (2023)