cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Advantages of $q$-logarithm representation over $q$-exponential representation from the sense of scale and shift on nonlinear systems
Creators: name: Suyari, Hiroki
name: Matsuzoe, Hiroshi
name: Scarfone, Antonio M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Addition and subtraction of observed values can be computed under the obvious and implicit assumption that the scale unit of measurement should be the same for all arguments, which is valid even for any nonlinear systems. This paper starts with the distinction between exponential and non-exponential family in the sense of the scale unit of measurement. In the simplest nonlinear model ${dy}/{dx}=y^{q}$, it is shown how typical effects such as rescaling and shift emerge in the nonlinear systems and affect observed data. Based on the present results, the two representations, namely the $q$-exponential and the $q$-logarithm ones, are proposed. The former is for rescaling, the latter for unified understanding with a fixed scale unit. As applications of these representations, the corresponding entropy and the general probability expression for unified understanding with a fixed scale unit are presented. For the theoretical study of nonlinear systems, $q$-logarithm representation is shown to have significant advantages over $q$-exponential representation.
description: 13 pages, 3 figures
MOESM3 of A comprehensive survey of the prevalence and spatial distribution of ticks infesting cattle in different agro-ecological zones of Cameroon
Creators: name: Silatsa, Barberine
name: Simo, Gustave
name: Naftaly Githaka
name: Mwaura, Stephen
name: Rolin Kamga
name: Farikou Oumarou
name: Keambou, Christian
name: Bishop, Richard
name: Djikeng, Appolinaire
name: Jules-Roger Kuiate
name: Flobert Njiokou
name: Pelle, Roger
Publisher: name: figshare
Year: 2019
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 3: Figure S2. Hyalomma truncatum and Hyalomma rufipes dorsal and ventral views.
Zum Gedächtnis an H. E. Ziegler
Creators: name: Rauther, Max
Publisher: name: - NO PUBLISHER DEFINED -
Year: 1925

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 81, 1925
High transport critical current density above 30 K in pure Fe-clad MgB2 tape
Creators: name: Soltanian, S.
name: Wang, X. L.
name: Kusevic, I.
name: Babic, E.
name: Li, A. H.
name: Liu, H. K.
name: Collings, E. W.
name: Dou, S. X.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Fe-clad MgB2 long tapes have been fabricated using a powder-in-tube technique. An Mg + 2B mixture was used as the central conductor core and reacted in-situ to form MgB2. The tapes were sintered in pure Ar at 800 ^(o) C for 1 h at ambient pressure. SEM shows a highly dense core with a large grain size of 100 micron. The Fe clad tape shows a sharp transition with transition width of 0.2 K and Tc0 at 37.5 K. We have achieved the highest transport critical current reported so far at 1.6 times 10^(4) A/cm^2 for both 29.5 K in 1 Tesla and 33 K in null field. R-T and critical current were also measured for fields perpendicular and parallel to the tape plane. The iron cladding shielded on the core from the applied external field, with the shielding being less effective for the field in the tape plane. Fe cladding may be advantageous for some applications as it could reduce the effects of both the self-field and external fields.
description: 14 pages, 5 figures, submitted to Physica C on May 7, 2001
Calibration of the virial factor $f$ in supermassive black hole masses of reverberation-mapped AGNs
Creators: name: Yu, Li-Ming
name: Bian, Wei-Hao
name: Wang, Chan
name: Zhao, Bi-Xuan
name: Ge, Xue
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using a compiled sample of 34 broad-line active galactic nuclei (AGNs) with measured H$β$ time lags from the reverberation mapping (RM) method and measured bulge stellar velocity dispersions $σ_*$, we calculate the virial factor $f$ by assuming that the RM AGNs intrinsically obey the same $M_{\rm BH}-σ_*$ relation as quiescent galaxies, where $M_{\rm BH}$ is the mass of the supermassive black hole (SMBH). Considering four tracers of the velocity of the broad-line regions (BLRs), i.e., the H$β$ line width or line dispersion from the mean or rms spectrum, there are four kinds of the factor $f$. Using the \hb Full-width at half-maximum (FWHM) to trace the BLRs velocity, we find significant correlations between the factor $f$ and some observational parameters, e.g., FWHM, the line dispersion. Using the line dispersion to trace the BLRs velocity, these relations disappear or become weaker. It implies the effect of inclination in BLRs geometry. It also suggests that the variable $f$ in $M_{\rm BH}$ estimated from luminosity and FWHM in a single-epoch spectrum is not negligible. Using a simple model of thick-disk BLRs, we also find that, as the tracer of the BLRs velocity, H$β$ FWHM has some dependence on the inclination, while the line dispersion $σ_{\rm Hβ}$ is insensitive to the inclination. Considering the calibrated FWHM-based factor $f$ from the mean spectrum, the scatter of the SMBH mass is 0.39 dex for our sample of 34 low redshift RM AGNs. For a high redshift sample of 30 SDSS RM AGNs with measured stellar velocity dispersions, we find that the SMBH mass scatter is larger than that for our sample of 34 low redshift RM AGNs. It implies the possibility of evolution of the $M_{\rm BH}-σ_*$ relation from high-redshift to low-redshift AGNs.
description: 15 pages, 6 tables, 7 figures, accepted for publication in MNRAS
Evaluate the economic consequences of revenue insurance programs in Spain using copula models. The case of orange and apple
Creators: name: Ahmed, Osama
name: Serra, Teresa
name: Ahmed, Osama
name: Serra, Teresa
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: agricultural revenue insurance
subject: dependency analysis
subject: premium rate
subject: expected loss
subject: statistical copula

description: This article aims at determining how the introduction of agricultural revenue insurance contracts in Spain will affect the cost of purchasing insurance, relative to yield insurance schemes. We focus our empirical analysis on the apple and orange sectors in Spain. Statistical copulas are used to jointly model price and yield perils. Premium rates under revenue and yield insurance are simulated through Monte Carlo methods. Results indicate that revenue insurance is likely to reduce the price of agricultural insurance in Spain, which may result in higher acceptance and demand for agricultural insurance programs.
MOESM1 of High helminthic co-infection in tuberculosis patients with undernutritional status in northeastern Ethiopia
Creators: name: Fikru Gashaw
name: Bekele, Samuel
name: Yalemtsehay Mekonnen
name: Girmay Medhin
name: Gobena Ameni
name: Berhanu Erko
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Multilingual abstracts in the five official working languages of the United Nations
Über die Mollusken der oberschwäbischen Seen
Creators: name: Geyer, David
Publisher: name: - NO PUBLISHER DEFINED -
Year: 1925

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 81, 1925
Insulating and metallic phases in the one-dimensional Hubbard-Su-Schrieffer-Heeger model: Insights from a backflow-inspired variational wave function
Creators: name: Piccioni, Davide
name: Ferrari, Francesco
name: Fabrizio, Michele
name: Becca, Federico
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The interplay between electron-electron and electron-phonon interactions is studied in a one-dimensional lattice model, by means of a variational Monte Carlo method based on generalized Jastrow-Slater wave functions. Here, the fermionic part is constructed by a pair-product state, which explicitly depends on the phonon configuration, thus including the electron-phonon coupling in a backflow-inspired way. We report the results for the Hubbard model in presence of the Su-Schrieffer-Heeger coupling to optical phonons, both at half-filling and upon hole doping. At half-filling, the ground state is either a translationally invariant Mott insulator, with gapless spin excitations, or a Peierls insulator, which breaks translations and has fully gapped excitations. Away from half-filling, the charge gap closes in both Mott and Peierls insulators, turning the former into a conventional Luttinger liquid (gapless in all excitation channels). The latter, instead, retains a finite spin gap that closes only above a threshold value of the doping. Even though consistent with the general theory of interacting electrons in one dimension, the existence of such a phase (with gapless charge but gapped spin excitations) has never been demonstrated in a model with repulsive interaction and with only two Fermi points. Since the spin-gapped metal represents the one-dimensional counterpart of a superconductor, our results furnish evidence that a true off-diagonal long-range order may exist in the two-dimensional case.
Fully spin-polarized quadratic non-Dirac bands realized quantum anomalous Hall effect
Creators: name: Li, Ping
name: Cai, Tian-Yi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The quantum anomalous Hall effect is a intriguing quantum state which exhibits the chiral edge states in the absence of magnetic field. While the search for quantum anomalous Hall insulators is still active, the researchers mainly search for the systems containing magnetic atom. Here, based on first-principles density functional theory, we predict a new family of chern insulators with fully spin-polarized quadratic px;y non-Dirac bands in the alkali earth metal BaX (X = Si, Ge, Sn) system. We show that BaX monolayer has a half-metallic ferromagnetic ground state. The ferromagnetism is mainly originated from the p orbitals of Si, Ge and Sn atoms. The 2D BaSn monolayer exhibits a large magnetocrystalline anisotropic energy of 12.20 meV/cell and a nontrivial band gap of 159.10 meV. Interestingly, both the spin polarization of the chiral edge currents and the sign of Chern number can be tuned by doping. Furthermore, the 4 % compressive strain can drive structural phase transition but the nontrivial topological properties remain reserve in the 2D BaX systems. Our findings not only extend the novel concepts but also provide fascinating opportunities for the realization of quantum anomalous Hall effect experimentally.
description: 7 pages, 7 figures
Quantum coarsening and collective dynamics on a programmable quantum simulator
Creators: name: Manovitz, Tom
name: Li, Sophie H.
name: Ebadi, Sepehr
name: Samajdar, Rhine
name: Geim, Alexandra A.
name: Evered, Simon J.
name: Bluvstein, Dolev
name: Zhou, Hengyun
name: Koyluoglu, Nazli Ugur
name: Feldmeier, Johannes
name: Dolgirev, Pavel E.
name: Maskara, Nishad
name: Kalinowski, Marcin
name: Sachdev, Subir
name: Huse, David A.
name: Greiner, Markus
name: Vuletić, Vladan
name: Lukin, Mikhail D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Understanding the collective quantum dynamics of nonequilibrium many-body systems is an outstanding challenge in quantum science. In particular, dynamics driven by quantum fluctuations are important for the formation of exotic quantum phases of matter, fundamental high-energy processes, quantum metrology, and quantum algorithms. Here, we use a programmable quantum simulator based on Rydberg atom arrays to experimentally study collective dynamics across a (2+1)D Ising quantum phase transition. After crossing the quantum critical point, we observe a gradual growth of correlations through coarsening of antiferromagnetically ordered domains. By deterministically preparing and following the evolution of ordered domains, we show that the coarsening is driven by the curvature of domain boundaries, and find that the dynamics accelerate with proximity to the quantum critical point. We quantitatively explore these phenomena and further observe long-lived oscillations of the order parameter, corresponding to an amplitude (Higgs) mode. These observations offer a unique viewpoint into emergent collective dynamics in strongly correlated quantum systems and nonequilibrium quantum processes.
description: 25 pages, 15 figures
Observation of gut content and morpho-histology of the digestivesystem in Pisodonophis boro (Hamilton, 1822) from Pranburi RiverEstuary, Thailand
Creators: name: Phakorn Na Lampang
name: Amphornphan Palasai
name: Sinlapachai Senarat
name: Wannee Jiraungkoorskul
name: Kettratad, Jes
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2021
Subjects: gut content
microanatomy
Sarmatium germaini
optimum foraging theory

description: Songklanakarin Journal of Science and Technology (SJST), 43, 2, 496-504
Serostatus Testing & Dengue Vaccine Cost-Benefit Thresholds
Creators: name: Pearson, Carl A. B.
name: Abbas, Kaja M.
name: Clifford, Samuel
name: Flasche, Stefan
name: Hladish, Thomas J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The World Health Organisation currently recommends pre-screening for past infection prior to administration of the only licensed dengue vaccine, CYD-TDV. Using a bounding analysis, we show that despite additional testing costs, this approach can improve the economic viability of CYD-TDV: effective testing reduces unnecessary vaccination costs while increasing the health benefit for vaccine recipients. When testing is cheap enough, those trends outweigh additional screening costs and make test-then-vaccinate strategies net-beneficial in many settings. We derived these results using a general approach for determining price thresholds for testing and vaccination, as well as indicating optimal start and end ages of routine test-then-vaccinate programs. This approach only requires age-specific seroprevalence and a cost estimate for second infections. We demonstrate this approach across settings commonly used to evaluate CYD-TDV economics, and highlight implications of our simple model for more detailed studies. We found trends showing test-then-vaccinate strategies are generally more beneficial starting at younger ages, and that in some settings multiple years of testing can be more beneficial than only testing once, despite increased investment in testing.
TEMPO/CuI synergetic catalyzed oxidative cross-coupling of indoles with benzylamines: Synthesis of bis(indolyl)phenylmethanes
Creators: name: Liao, Meixiang
name: Zhang, Xiaoyun
name: Yue, Pengfei
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Neuroscience
Chemical Sciences not elsewhere classified

description: TEMPO/CuI was found to be an effective catalyst for the cross-coupling of indoles with benzylic amines affording the corresponding bis(indolyl)phenylmethanes under air atmosphere at room temperature in good to excellent yields. The efficiency, easy workup, simplicity, and chemoselectivity of this protocol provide a green and low-cost procedure for the synthesis of these compounds.
Paravelia rotundanotata
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia rotundanotata

description: Paravelia rotundanotata (Hungerford, 1930)
Geographical distribution: Brazil and Argentina. This species was described from “La Plata,” but if Hungerford (1930) was referring the city in Argentina, the record is dubious, because no other specimens have been collected in Buenos Aires province (Mazzucconi 2000).
Distribution in Brazil: Southeast Region (MG) (Hungerford 1930).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Strong Coupling Constant from the Photon Structure Function
Creators: name: Albino, S.
name: Klasen, M.
name: Soldner-Rembold, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We extract the value of the strong coupling constant alpha_s from a single-parameter pointlike fit to the photon structure function F_2^gamma at large x and Q^2 and from a first five-parameter full (pointlike and hadronic) fit to the complete F_2^gamma data set taken at PETRA, TRISTAN, and LEP. In next-to-leading order and the MSbar renormalization and factorization schemes, we obtain alpha_s(m_Z)=0.1183 +/- 0.0050(exp.)^+0.0029_-0.0028(theor.) [pointlike] and alpha_s(m_Z)=0.1198 +/- 0.0028(exp.)^+0.0034_-0.0046(theor.) [pointlike and hadronic]. We demonstrate that the data taken at LEP have reduced the experimental error by about a factor of two, so that a competitive determination of alpha_s from F_2^gamma is now possible.
description: 11 pages, 2 tables, 2 figures. Version accepted for publication by Phys. Rev. Lett
Vertical Price Transmission in the Egyptian Tomato Sector After the Arab Spring
Creators: name: Ahmed, Osama
name: Serra, Teresa
name: Ahmed, Osama
name: Serra, Teresa
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Food Consumption/Nutrition/Food Safety
subject: food prices
subject: asymmetric price transmission
subject: dependence analysis
subject: static and time-varying copula

description: This study assesses price transmission along the Egyptian tomato food marketing chain in the period that followed the Arab Spring, which accentuated economic precariousness in Egypt. Static and time-varying copula methods are used for this purpose. Results suggest a positive link between producer, wholesaler and retailer tomato prices. Such positive dependence is characterized by asymmetries during extreme market events, that lead price increases to be transferred more completely along the supply chain than price declines.
Vortex dissipation and level dynamics for the layered superconductors with impurities
Creators: name: Fujita, Ayumi
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study parametric level statistics of the discretized excitation spectra inside a moving vortex core in layered superconductors with impurities. The universal conductivity is evaluated numerically for the various values of rescaled vortex velocities $κ$ from the clean case to the dirty limit case. The random matrix theoretical prediction is verified numerically in the large $κ$ regime. On the contrary in the low velocity regime, we observe $σ_{xx} \propto κ^{2/3}$ which is consistent with the theoretical result for the super-clean case, where the energy dissipation is due to the Landau-Zener transition which takes place at the points called ``avoided crossing''.
description: 10 pages, 4 figures, REVTeX3.1
Effectiveness and Economics of Hermetic Bags for Maize Storage: Results of a Randomized Controlled Trial in Kenya
Creators: name: Ndegwa, Michael
name: De Groote, Hugo
name: Gitonga, Zachary
name: Bruce, Anani
name: Ndegwa, Michael
name: De Groote, Hugo
name: Gitonga, Zachary
name: Bruce, Anani
Publisher: name: Unknown
Year: 2015
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: hermetic bags
subject: maize storage
subject: effectiveness
subject: benefit cost

description: Maize is a very important crop in Africa whose production is seasonal but consumption continuous. This makes it important to store it on-farm especially for the small scale farmers, but the traditional storage methods lead to high losses. This calls for more research and investment in improved storage technologies such as hermetic bags. A randomized controlled trial was implemented in Kenya with treatment farmers using hermetic bags and control farmers conventional farmer practices. Hermetic bags were highly effective in controlling loss to an abated loss of 8.5% valued at KSh 307(US$ 3.6) for one season and KSh 918 (US$ 10.7) for three seasons, the recommended minimum times a bag can be re-used. The technology is economically viable with a benefit cost ratio of 1.6 for one season and 4.8 for three seasons.
Renormalisation-theoretic analysis of non-equilibrium phase transitions I: The Becker-Doring equations with power law rate coefficients
Creators: name: Wattis, Jonathan AD
name: Coveney, Peter V
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study in detail the application of renormalisation theory to models of cluster aggregation and fragmentation of relevance to nucleation and growth processes. We investigate the Becker-Dorging equations, originally formulated to describe and analyse non-equilibrium phase transitions, and more recently generalised to describe a wide range of physicochemical problems. In the present paper we analyse how the systematic coarse-graining renormalisation of the \BD system of equations affects the aggregation and fragmentation rate coefficients. We consider the case of power-law size-dependent cluster rate coefficients which we show lead to only three classes of system that require analysis: coagulation-dominated systems, fragmentation-dominated systems and those where coagulation and fragmentation are exactly balanced. We analyse the late-time asymptotics associated with each class.
description: 18 pages, to appear in J Phys A Math Gen
Supplementary document for On-line high-accuracy particulate matter monitoring technology by using multi-channel scattering signals - 5464515.pdf
Creators: name: Zeng, Jin
name: Chen, Ang
name: Bian, Ang
name: Xu, Wenbo
name: Li, Liangbo
name: Liu, Deming
name: Wang, Shu
name: Deng, Tian
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Supplement 1
Effects of sodium bentonite clay as a feed additive on the growthand haematology parameters of hybrid grouper,Epinephelus fuscoguttatus x Epinephelus lanceolatus
Creators: name: Sazmal E. Arshad
name: Jeffrey, Fatin Najiha M.
name: Amin, Zarina
name: Rossita Shapawi
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2021
Subjects: sodium bentonite
growth
haematology
hybrid grouper

description: Songklanakarin Journal of Science and Technology (SJST), 43, 2, 505-511
SU(2)_L * SU(2)_R and U(1)_A restorations high in the hadron spectrum and what it tells us about
Creators: name: Glozman, L. Ya.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent data for highly excited mesons suggest that not only the chiral $SU(2)_L\times SU(2)_R$ symmetry of QCD is restored high in the spectrum but also the $ U(1)_A$ symmetry. This means that it is not a confining interaction in QCD which triggers the spontaneous breaking of chiral symmetry. The restoration of the $U(2)_L\times U(2)_R$ symmetry of the QCD Lagrangian implies the appearance of multiplets of this group high in the hadron spectra. Such type of multiplets is naturally explained within the string picture of confinement. It also supports the scenario that the $U(1)_A$ breaking is related to instantons and not to the gluonic interaction responsible for confinement.
description: 12 pages, LaTeX. The paper has been expanded and typos have been removed; to appear in Phys. Lett. B
Nonequilibrium Quantum Fields and the Classical Field Theory Limit
Creators: name: Berges, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the far-from-equilibrium dynamics and thermalization both for the quantum and the classical O(N)--model. The early and late-time behavior can be described from the 2PI--loop expansion for weak couplings or the nonperturbative 2PI--1/N expansion of the effective action beyond leading order. A comparison with exact simulations in 1+1 dimensions in the classical limit shows that the 2PI--1/N expansion at next-to-leading order gives quantitatively precise results already for moderate values of N. We derive a criterion for the validity of the classical approximation and verify it by comparing far-from-equilibrium quantum and classical dynamics. At late times one observes the expected deviations due to the difference between classical and quantum thermal equilibrium.
description: 5 pages, to appear in the Proceedings of "Statistical QCD", Bielefeld, August 26-30, 2001
GazeFusion: Saliency-Guided Image Generation
Creators: name: Zhang, Yunxiang
name: Wu, Nan
name: Lin, Connor Z.
name: Wetzstein, Gordon
name: Sun, Qi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Diffusion models offer unprecedented image generation power given just a text prompt. While emerging approaches for controlling diffusion models have enabled users to specify the desired spatial layouts of the generated content, they cannot predict or control where viewers will pay more attention due to the complexity of human vision. Recognizing the significance of attention-controllable image generation in practical applications, we present a saliency-guided framework to incorporate the data priors of human visual attention mechanisms into the generation process. Given a user-specified viewer attention distribution, our control module conditions a diffusion model to generate images that attract viewers' attention toward the desired regions. To assess the efficacy of our approach, we performed an eye-tracked user study and a large-scale model-based saliency analysis. The results evidence that both the cross-user eye gaze distributions and the saliency models' predictions align with the desired attention distributions. Lastly, we outline several applications, including interactive design of saliency guidance, attention suppression in unwanted regions, and adaptive generation for varied display/viewing conditions.
description: ACM Transactions on Applied Perception (ACM Symposium on Applied Perception 2024)
Modeling the precession of the warped inner accretion disk in the pulsars LMC X-4 and SMC X-1 with NuSTAR and XMM-Newton
Creators: name: Brumback, McKinley C.
name: Hickox, Ryan C.
name: Fürst, Felix S.
name: Pottschmidt, Katja
name: Tomsick, John A.
name: Wilms, Jörn
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a broad-band X-ray study of the effect of superorbital periods on X-ray spectra and pulse profiles in the neutron star X-ray binaries LMC X-4 and SMC X-1. These two sources display periodic or quasi-periodic variations in luminosity on the order of tens of days which are known to be superorbital, and are attributed to warped, precessing accretion disks. Using joint NuSTAR and XMM-Newton observations that span a complete superorbital cycle, we examine the broad-band spectra of these sources and find the shape to be well described by an absorbed power law with a soft blackbody component. Changes in spectral shape and pulse profile shape are periodic with superorbital period, as expected from a precessing disk. We perform X-ray tomography using the changes in pulse profiles to model the geometry and kinematics of the inner accretion disk. Our simple beam and inner disk geometric model indicates that the long term changes in soft pulse shape and phase are consistent with reprocessed emission from a precessing inner disk.
description: Updated with version accepted to ApJ. 16 pages, 13 figures
Megatrends and the Future of African Economies
Creators: name: Traub, Lulama
name: Yeboah, Felix
name: Meyer, Ferdinand
name: Jayne, Thomas S.
name: Traub, Lulama
name: Yeboah, Felix
name: Meyer, Ferdinand
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 2015
Subjects: Financial Economics
International Development

description: Agri-food systems, including those in Africa, are complex and interdependent systems with the following features : (1) they develop endogenously with broader demographic and economic changes in the broader economy, hence it is difficult or impossible to predict their specific growth and income distributional trajectories; (2) their future trajectories are highly dependent on policy choices and public investment patterns and hence can be molded by public action; (3) they evolve through interdependent decisions of many actors such that few emerging patterns can be linked to a particular agent within the system; and (4) the variables influencing their development change over time with the underlying structure of local, regional and international economic systems, and with changes in technologies and institutions. In this dynamic environment, notions of equilibrium may be very short-lived. Nevertheless, we believe that there are identifiable “megatrends” with a high probability of affecting African food and broader economic systems in the coming decades. This paper investigates the evidence of ‘megatrends’ shaping African economic, political and social landscapes and asks which ones depend endogenously on processes that are within the realm of policy influence and which ones are indeed exogenous.
Spatiotemporal Forecasting of Traffic Flow using Wavelet-based Temporal Attention
Creators: name: Jakhmola, Yash
name: Panja, Madhurima
name: Mishra, Nitish Kumar
name: Ghosh, Kripabandhu
name: Kumar, Uttam
name: Chakraborty, Tanujit
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Spatiotemporal forecasting of traffic flow data represents a typical problem in the field of machine learning, impacting urban traffic management systems. In general, spatiotemporal forecasting problems involve complex interactions, nonlinearities, and long-range dependencies due to the interwoven nature of the temporal and spatial dimensions. Due to this, traditional statistical and machine learning methods cannot adequately handle the temporal and spatial dependencies in these complex traffic flow datasets. A prevalent approach in the field combines graph convolutional networks and multi-head attention mechanisms for spatiotemporal processing. This paper proposes a wavelet-based temporal attention model, namely a wavelet-based dynamic spatiotemporal aware graph neural network (W-DSTAGNN), for tackling the traffic forecasting problem. Wavelet decomposition can help by decomposing the signal into components that can be analyzed independently, reducing the impact of non-stationarity and handling long-range dependencies of traffic flow datasets. Benchmark experiments using three popularly used statistical metrics confirm that our proposal efficiently captures spatiotemporal correlations and outperforms ten state-of-the-art models (including both temporal and spatiotemporal benchmarks) on three publicly available traffic datasets. Our proposed ensemble method can better handle dynamic temporal and spatial dependencies and make reliable long-term forecasts. In addition to point forecasts, our proposed model can generate interval forecasts that significantly enhance probabilistic forecasting for traffic datasets.
Renormalisation-theoretic analysis of non-equilibrium phase transitions II: The effect of perturbations on rate coefficients in the Becker-Doring equations
Creators: name: Wattis, Jonathan AD
name: Coveney, Peter V
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study in detail the application of renormalisation theory to models of cluster aggregation and fragmentation of relevance to nucleation and growth processes. In particular, we investigate the Becker-Doring (BD) equations, originally formulated to describe and analyse non-equilibrium phase transitions, but more recently generalised to describe a wide range of physicochemical problems. We consider here rate coefficients which depend on the cluster size in a power-law fashion, but now perturbed by small amplitude random noise. Power-law rate coefficients arise naturally in the theory of surface-controlled nucleation and growth processes. The noisy perturbations on these rates reflect the effect of microscopic variations in such mean-field coefficients, thermal fluctuations and/or experimental uncertainties. In the present paper we generalise our earlier work that identified the nine classes into which all dynamical behaviour must fall by investigating how random perturbations of the rate coefficients influence the steady-state and kinetic behaviour of the coarse-grained, renormalised system. We are hence able to confirm the existence of a set of up to nine universality classes for such BD systems.
description: 30 pages, to appear in J Phys A Math Gen
Paravelia splendoris
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia splendoris

description: Paravelia splendoris (Drake & Harris, 1933)
Geographical distribution: Brazil.
Distribution in Brazil: Central-West Region (MT) (Drake & Harris 1933a).
 Comments: Described from “Chapada, Brazil.” See discussion under Limnogonus (Limnogonus) profugus.
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Interpretability of Uncertainty: Exploring Cortical Lesion Segmentation in Multiple Sclerosis
Creators: name: Molchanova, Nataliia
name: Cagol, Alessandro
name: Gordaliza, Pedro M.
name: Ocampo-Pineda, Mario
name: Lu, Po-Jui
name: Weigel, Matthias
name: Chen, Xinjie
name: Depeursinge, Adrien
name: Granziera, Cristina
name: Müller, Henning
name: Cuadra, Meritxell Bach
Publisher: name: arXiv
Year: 2024
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Uncertainty quantification (UQ) has become critical for evaluating the reliability of artificial intelligence systems, especially in medical image segmentation. This study addresses the interpretability of instance-wise uncertainty values in deep learning models for focal lesion segmentation in magnetic resonance imaging, specifically cortical lesion (CL) segmentation in multiple sclerosis. CL segmentation presents several challenges, including the complexity of manual segmentation, high variability in annotation, data scarcity, and class imbalance, all of which contribute to aleatoric and epistemic uncertainty. We explore how UQ can be used not only to assess prediction reliability but also to provide insights into model behavior, detect biases, and verify the accuracy of UQ methods. Our research demonstrates the potential of instance-wise uncertainty values to offer post hoc global model explanations, serving as a sanity check for the model. The implementation is available at https://github.com/NataliiaMolch/interpret-lesion-unc.
Finite temperature bosonization
Creators: name: Bowen, Garry
name: Gulacsi, Miklos
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Finite temperature properties of a non-Fermi liquid system is one of the most challenging probelms in current understanding of strongly correlated electron systems. The paradigmatic arena for studying non-Fermi liquids is in one dimension, where the concept of a Luttinger liquid has arisen. The existence of a critical point at zero temperature in one dimensional systems, and the fact that experiments are all undertaken at finite temperature, implies a need for these one dimensional systems to be examined at finite temperature. Accordingly, we extended the well-known bosonization method of one dimensional electron systems to finite temperatures. We have used this new bosonization method to calculate finite temperature asymptotic correlation functions for linear fermions, the Tomonaga-Luttinger model, and the Hubbard model.
description: REVTex, 48 pages
Die Schwarzwaldgerölle im Gebiet des oberen Neckars
Creators: name: Haag, Friedrich
Publisher: name: - NO PUBLISHER DEFINED -
Year: 1925

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 81, 1925
Energy drag in particle-hole symmetric systems as a quantum quench
Creators: name: Berdanier, William
name: Scaffidi, Thomas
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two conducting quantum systems coupled only via interactions can exhibit the phenomenon of Coulomb drag, in which a current passed through one layer can pull a current along in the other. However, in systems with particle-hole symmetry -- for instance, the half-filled Hubbard model or graphene near the Dirac point -- the Coulomb drag effect vanishes to leading order in the interaction. Its thermal analogue, whereby a thermal current in one layer pulls a thermal current in the other, does not vanish and is indeed the dominant form of drag in particle-hole symmetric systems. By studying a quantum quench, we show that thermal drag, unlike charge drag, displays a non-Fermi's Golden Rule growth at short times due to a logarithmic scattering singularity generic to one dimension. Exploiting the integrability of the Hubbard model, we obtain the long-time limit of the quench for weak interactions. Finally, we comment on thermal drag effects in higher dimensional systems.
description: 5 + 11 pages, 2 + 1 figures; published version
Analytic trajectory bootstrap for matrix models
Creators: name: Li, Wenliang
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We revisit the large $N$ two-matrix model with $\text{tr}[A,B]^2$ interaction and quartic potentials by the analytic trajectory bootstrap, where $A$ and $B$ represent the two matrices. In the large $N$ limit, we can focus on the single trace moments associated with the words composed of the letters $A$ and $B$. Analytic continuations in the lengths of the words and subwords lead to analytic trajectories of single trace moments and intriguing intersections of different trajectories. Inspired by the one-cut solutions of one-matrix models, we propose some simple ansatzes for the singularity structure of the two-matrix generating functions and the corresponding single trace moments. Together with the self-consistent constraints from the loop equations, we determine the free parameters in the ansatzes and obtain highly accurate solutions for the two-matrix model at a low computational cost. For a given length cutoff $L_\text{max}$, our results are within and more accurate than the positivity bounds from the relaxation method, such as about 6-digit accuracy for $L_\text{max}=18$. The convergence pattern suggests that we achieve about $8$-digit accuracy for $L_\text{max}=22$. As the singularity structure is closely related to the eigenvalue distributions, we further present the results for various types of eigenvalue densities. In the end, we study the symmetry breaking solutions using more complicated ansatzes.
description: v2, 32 pages, 9 figures, typos corrected, discussion improved, footnotes added
Some Recent Developments in Perturbative Quantum Chromodynamics
Creators: name: Sterman, George
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This talk reviews some recent trends in perturbative quantum chromodynamics, with emphasis on higher orders in perturbation theory, resummation and power corrections.
description: 10 pages, 9 eps figures, based on a talk at Light-Cone Physics, Particles and Strings, Trento, September 2001
Beiträge zur Kenntnis der Tektonik des Heilbronner Talkessels
Creators: name: Pfeiffer, Wilhelm
Publisher: name: - NO PUBLISHER DEFINED -
Year: 1925

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 81, 1925
B^0_{d,s} - \bar{B}^0_{d,s} mass-differences from QCD spectral sum rules
Creators: name: Hagiwara, Kaoru
name: Narison, Stephan
name: Nomura, Daisuke
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present the first QCD spectral sum rules analysis of the SU(3) breaking parameter ξand an improved estimate of the renormalization group invariant (RGI) bag constant \hat{B}_{B_q} both entering into the B^0_{d,s} - \bar{B}^0_{d,s} mass-differences. The averages of the results from the Laplace and moment sum rules to order α_s are f_B\sqrt{\hat B_B} \simeq (247 \pm 59) MeV and ξ\equiv f_{B_s} \sqrt{\hat B_{B_s}} / f_{B} \sqrt{\hat B_{B}} \simeq (1.18\pm 0.03), in units where f_π=130.7 MeV. Combined with the experimental data on the mass-differences ΔM_{d,s}, one obtains the constraint on the CKM weak mixing angle |V_{ts}/V_{td}|^2 > 20.0 (1.1). Alternatively, using the weak mixing angle from the analysis of the unitarity triangle and the data on ΔM_d, one predicts ΔM_s=18.6 (2.2) ps^{-1} in agreement with the present experimental lower bound and within the reach of Tevatron 2.
description: 7 pages with 2 figures, uses espcrc2.sty. Version to appear in Phys. Lett. B
Platyvelia brachialis
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Platyvelia
Platyvelia brachialis

description: Platyvelia brachialis (Stål, 1860)
Geographical distribution: United States of America, Mexico, Cuba, Dominican Republic, Guatemala, Nicaragua, Grenada, Costa Rica, Trinidad & Tobago, Panama, Suriname, Brazil, Peru, and Argentina.
 Distribution in Brazil: Central-West, Southeast, and South regions (GO, MG, ES, RJ, SC) (Stål, 1860; Polhemus & Polhemus 1993; Nieser & Melo 1997; Melo & Nieser 2004; Souza et al. 2006; Ribeiro et al. 2010).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 22, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Optical Spectropolarimetry of the GRB 020813 Afterglow
Creators: name: Barth, A. J.
name: Sari, R.
name: Cohen, M. H.
name: Goodrich, R. W.
name: Price, P. A.
name: Fox, D. W.
name: Bloom, J. S.
name: Soderberg, A. M.
name: Kulkarni, S. R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The optical afterglow of gamma-ray burst 020813 was observed for 3 hours with the LRIS spectropolarimeter at the Keck-I telescope, beginning 4.7 hours after the burst was detected by HETE-2. The spectrum reveals numerous metal absorption lines that we identify with two systems at z=1.223 and z=1.255. We also detect an O II 3727 emission line at z=1.255 and we identify this galaxy as the likely host of the GRB. After a correction for Galactic interstellar polarization, the optical afterglow has a linear polarization of 1.8-2.4% during 4.7-7.9 hours after the burst. A measurement of p = 0.80% +/- 0.16% on the following night by Covino et al. demonstrates significant polarization variability over the next 14 hours. The lack of strong variability in the position angle of linear polarization indicates that the magnetic field in the jet is likely to be globally ordered rather than composed of a number of randomly oriented cells. Within the framework of afterglow models with collimated flows, the relatively low observed polarization suggests that the magnetic field components perpendicular and parallel to the shock front are only different by about 20%.
description: To appear in ApJ Letters. 6 pages including 2 figures