cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ocorrência de Primatas Não-Humanos no Ambiente Urbano de Cruzeiro do Sul, Acre, Brasil
Creators: name: Liesenfeld, Marcus Vinicius Athaydes
name: Liesenfeld, Anne Jamille Bezerra
Publisher: name: figshare
Year: 2019
Subjects: subject: 50202 Conservation and Biodiversity
subject: FOS: Biological sciences

description: A maior parte de primatas neotropicais habita a Amazônia, e são crescentes as pesquisas que enfocam diversidade, distribuição e características ecológicas das espécies. Este estudo teve como objetivo verificar a ocorrência e a distribuição de primatas no ambiente urbano e periurbano do município de Cruzeiro do Sul/AC, Brasil, através dos métodos direto (caminhamentos) e indireto (entrevistas com roteiro semiestruturado). Foram percorridas 33 quadrículas de 500m x 500m e realizadas 56 entrevistas, que indicaram provável existência de nove espécies de primatas (método indireto) e confirmaram ocorrência de Cebuella niveiventris, Leontocebus fuscicollis fuscicollis, Saguinus mystax mystax e Plecturocebus cupreus (método direto). Com o crescimento desordenado da malha urbana do município, as florestas remanescentes ficam mais suscetíveis aos impactos, assim como as espécies que nelas vivem. Com base nos resultados, sugere-se a manutenção e recuperação das matas ciliares no entorno dos corpos d'água-áreas de preservação permanente (APPs) e programas de educação ambiental nas escolas e comunidades locais. Palavras-chave: conservação da natureza; ecologia urbana; fragmentação; Amazônia.
ABSTRACT-Occurrence of non-human primates in the urban environments of Cruzeiro do Sul, state of Acre, Brazil. The aim of this study was to verify the occurrence and distribution of primates in the urban and peri-urban environments of the municipality of Cruzeiro do Sul, Acre, Brazil, through both direct (random walking) and indirect (semi-structured interviews) methods. We covered 33 grids of 500m × 500m and carried out 56 interviews. The results indicated the probable occurrence of nine primate species (indirect method) and we were able to confirm the presence of Cebuella niveiventris, Leontocebus fuscicollis fuscicollis, Saguinus mystax mystax and Plecturocebus cupreus (direct method). The disorderly growth of the urban areas of the town negatively affects the remaining forests and their species. We argue for the need to maintain and recuperate the riparian forests (Areas of Permanent Preservation), and to develop local programs of environmental education in the schools and local communities.
Ectinosoma melaniceps Boeck 1865
Creators: name: Duè Rbaum, S. Seifried J.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexanauplia
Harpacticoida
Ectinosomatidae
Ectinosoma
Ectinosoma melaniceps

description: Ectinosoma melaniceps Boeck, 1865 from Helgoland    Material. 66 females. Locality: Helgoland, German Bight, 1993; 54 ss 12 ¾ N, 7 ss 53 ¾ E. Two females are dissected. Female 1 mounted on four slides [Coll. No. 1998.041/1±1998.041 /4]. Female 2 mounted on six slides [Coll. No. 1998.042/1±1998.042 /6]. They are stored in the Copepod Collection of the AG Zoomorphologie, UniversitaÈt Oldenburg.
 Description of the female
 Body length (incl. C. R.) of the females varies between 450 and 580 m m (mean 5 515 m m; n 5 66).
 Rostrum, antennule, labrum, mandible, maxillule, maxilliped, P1±P4 and caudal rami exactly as in E. carnivora sp. n.
The following diOEerences are found (®gures 10E, 11A±F):
 Ornamentation of the body (®gures 10E, 11E±F). One black area on cephalothorax. The black colour sometimes very pale. The row of long irregular palisades ventrally on the genital double somite is uninterrupted. Row of spinules laterally and dorsally on the hyaline frill of genital double and following somite (®gure 11E). Minute ripples on surface of cuticle are deeper. Antenna (®gure 11A). Exopod as long as endopod; setal formula of exopod: 1, 1, 2. Maxilla (®gure 11C). Syncoxa with three endites; middle endite with one bare seta. P5 (®gure 11D). Row of spinules on inner and innermost but one lobe of exopod, respectively, and two rows of spinules on inner edge of baseoendopod.
description: Published as part of Duè Rbaum, S. Seifried J., 2000, First clear case of carnivory in marine Copepoda Harpacticoida, pp. 1595-1618 in Journal of Natural History 34 on pages 1612-1613
Can a Drinfeld module be modular?
Creators: name: Goss, David
Publisher: name: arXiv
Year: 2002
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11F52

description: Let $k$ be a global function field with field of constants $\Fr$ and let $\infty$ be a fixed place of $k$. In his habilitation thesis \cite{boc2}, Gebhard Böckle attaches abelian Galois representations to characteristic $p$ valued cusp eigenforms and double cusp eigenforms \cite{go1} such that Hecke eigenvalues correspond to the image of Frobenius elements. In the case where $k=\Fr(T)$ and $\infty$ corresponds to the pole of $T$, it then becomes reasonable to ask whether rank 1 Drinfeld modules over $k$ are themselves ``modular'' in that their Galois representations arise from a cusp or double cusp form. This paper gives an introduction to \cite{boc2} with an emphasis on modularity and closes with some specific questions raised by Böckle's work.
description: Final corrected version
Population-scale dietary interests during the COVID-19 pandemic
Creators: name: Gligoric, Kristina
name: Chiolero, Arnaud
name: Kıcıman, Emre
name: White, Ryen W.
name: West, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The SARS-CoV-2 virus has altered people's lives around the world. Here we document population-wide shifts in dietary interests in 18 countries in 2020, as revealed through time series of Google search volumes. We find that during the first wave of the COVID-19 pandemic there was an overall surge in food interest, larger and longer-lasting than the surge during typical end-of-year holidays in Western countries. The shock of decreased mobility manifested as a drastic increase in interest in consuming food at home and a corresponding decrease in consuming food outside of home. The largest (up to threefold) increases occurred for calorie-dense carbohydrate-based foods such as pastries, bakery products, bread, and pies. The observed shifts in dietary interests have the potential to globally affect food consumption and health outcomes. These findings can inform governmental and organizational decisions regarding measures to mitigate the effects of the COVID-19 pandemic on diet and nutrition.
description: Nature Communications (2022)
Supplementary document for Ultraviolet pulse compression via cross-phase modulation in a hollow-core fibre - 6845303.pdf
Creators: name: Jiang, Yujiao
name: Messerschmidt, John
name: Scheiba, Fabian
name: Tyulnev, Igor
name: Wang, Lu
name: Wei, Zhiyi
name: Rossi, Giulio Maria
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: supplementary materials
Quantum Interference between Photons and Single Quanta of Stored Atomic Coherence
Creators: name: Wang, Xingchang
name: Wang, Jianmin
name: Ren, Zhiqiang
name: Wen, Rong
name: Zou, Chang-Ling
name: Siviloglou, Georgios A.
name: Chen, J. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Essential for building quantum networks over remote independent nodes, the indistinguishability of photons has been extensively studied by observing the coincidence dip in the Hong-Ou-Mandel interferometer. However, indistinguishability is not limited to the same type of bosons. For the first time, we hereby observe quantum interference between flying photons and a single quantum of stored atomic coherence (magnon) in an atom-light beam splitter interface. We demonstrate that the Hermiticity of this interface determines the type of quantum interference between photons and magnons. Consequently, not only the bunching behavior that characterizes bosons is observed, but counterintuitively, fermionlike antibunching as well. The hybrid nature of the demonstrated magnon-photon quantum interface can be applied to versatile quantum memory platforms, and can lead to fundamentally different photon distributions from those occurring in boson sampling.
description: 15 pages (6 pages for main text, 9 pages for supplemental material), 9 figures (4 figures for main text, 5 figures for supplemental material), 1 table (1 table for supplemental material)
Reliability of clinical nodal status regarding response to neoadjuvant chemoradiotherapy compared with surgery alone and prognosis in esophageal cancer patients
Creators: name: Dijksterhuis, Willemieke P. M.
name: Hulshoff, Jan Binne
name: Dullemen, Hendrik M. Van
name: Gursah Kats-Ugurlu
name: Burgerhof, Johannes G. M.
name: Korteweg, Tijmen
name: Mul, Veronique E. M.
name: Hospers, Geke A. P.
name: Plukker, John T. M.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Background: Clinical nodal (cN) staging is a key element in treatment decisions in patients with esophageal cancer (EC). The reliability of cN status regarding the effect on response and survival after neoadjuvant chemoradiotherapy (nCRT) with esophagectomy was evaluated in determining the up- and downstaged pathological nodal (pN) status after surgery alone. Material and methods: From a prospective database, we included all 395 EC patients who had surgery with curative intent with or without nCRT between 2000 and 2015. All patients were staged by a standard pretreatment protocol: 16-64 mdCT, 18 F-FDG-PET or 18 F-FDG-PET/CT and EUS ± FNA. After propensity score matching on baseline clinical tumor and nodal (cT/N) stage and histopathology, a surgery-alone and nCRT group (each N = 135) were formed. Clinical and pathological N stage was scored as equal (cN = pN), downstaged (cN > pN) or upstaged (cN p value Results: The surgery-alone and nCRT group did not differ in cT/N status. Pathologic examination revealed equal staging (32 vs. 27%), nodal up (43 vs. 16%) and downstaging (25 vs. 56%), respectively (p p = .002) and lymph-angioinvasion (p = .016) in surgery-alone, and upper abdominal cN metastases (p = .012) and lymph node ratio (p = .034) in the nCRT group. Conclusions: Despite modern staging methods, correct cN staging remains difficult in EC. Nodal overstaging (cN > pN) occurred more often than understaging impeding an adequate assessment of pathologic complete response and prognosis after nCRT. Preoperative assessment of true nodal response after nCRT in EC remains difficult with clinical nodal upstaging (16% vs. 43%) and downstaging (56% vs. 25%) after nCRT and surgery alone, respectively.
Gelfand-type problem for turbulent jets
Creators: name: Gordon, Peter V.
name: Moroz, Vitaly
name: Nazarov, Fedor
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 35J25, 35J60, 35B40, 35B30, 35B09, 35A1, 80A25

description: We consider the model of auto-ignition (thermal explosion) of a free round reactive turbulent jet. This model falls into the general class of Gelfand-type problems and constitutes a boundary value problem for a certain semi-linear elliptic equation that depends on two parameters: $α$ characterizing the flow rate and $λ$ (Frank-Kamentskii parameter) characterizing the strength of the reaction. Similarly to the classical Gelfand problem, this equation admits a solution when the Frank-Kametskii parameter $λ$ does not exceed some critical value $λ^*(α)$ and admits no solutions for larger values of $λ$. We obtain the sharp asymptotic behavior of the critical Frank-Kamenetskii parameter in the strong flow limit ($α\gg1$). We also provide a detailed description of the extremal solution (i.e., the solution corresponding to $λ^*$) in this regime.
description: 26 pages
Real-Time Source Independent Quantum Random Number Generator with Squeezed States
Creators: name: Michel, Thibault
name: Haw, Jing Yan
name: Marangon, Davide G.
name: Thearle, Oliver
name: Vallone, Giuseppe
name: Villoresi, Paolo
name: Lam, Ping Koy
name: Assad, Syed M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Random numbers are a fundamental ingredient for many applications including simulation, modelling and cryptography. Sound random numbers should be independent and uniformly distributed. Moreover, for cryptographic applications they should also be unpredictable. We demonstrate a real-time self-testing source independent quantum random number generator (QRNG) that uses squeezed light as source. We generate secure random numbers by measuring the quadratures of the electromagnetic field without making any assumptions on the source; only the detection device is trusted. We use a homodyne detection to alternatively measure the Q and P conjugate quadratures of our source. Using the entropic uncertainty relation, measurements on P allow us to estimate a bound on the min-entropy of Q conditioned on any classical or quantum side information that a malicious eavesdropper may detain. This bound gives the minimum number of secure bits we can extract from the Q measurement. We discuss the performance of different estimators for this bound. We operate this QRNG with a squeezed state and we compare its performance with a QRNG using thermal states. The real-time bit rate was 8.2 kb/s when using the squeezed source and between 5.2-7.2 kb/s when the thermal state source was used.
description: 11 pages, 9 figures
The Scintillation Velocity of the Relativistic Binary Pulsar PSR J1141-6545
Creators: name: Ord, S. M.
name: Bailes, M.
name: van Straten, W.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report a dramatic orbital modulation in the scintillation timescale of the relativistic binary pulsar J1141--6545 that both confirms the validity of the scintillation speed methodology and enables us to derive important physical parameters. We have determined the space velocity, the orbital inclination and even the longitude of periastron of the binary system, which we find to be in good agreement with that obtained from pulse timing measurements. Our data permit two equally-significant physical interpretations of the system. The system is either an edge-on binary with a high space velocity ($\sim 115$ km s$^{-1}$) or is more face-on with a much slower velocity ($\sim 45$ km s$^{-1}$). We favor the former, as it is more consistent with pulse timing and the distribution of known neutron star masses. Under this assumption, the runaway velocity of 115 km s$^{-1}$ is much greater than is expected if pulsars do not receive a natal kick at birth. The derived inclination of the binary system is (76\pm 2.5^{\circ}) degrees, implying a companion mass of 1.01 (\pm )~0.02 M(_{\odot}) and a pulsar mass of 1.29 (\pm)~0.02 M(_{\odot}). Our derived physical parameters indicate that this pulsar should prove to be an excellent laboratory for tests of gravitational wave emission.
description: Minor text and figure changes and corrections following referee's Comments. 14 pages, 3 figures, accepted for publication in ApJ
Small-scale structure of nonlinearly interacting species advected by chaotic flows
Creators: name: Hernandez-Garcia, Emilio
name: Lopez, Cristobal
name: Neufeld, Zoltan
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the spatial patterns formed by interacting biological populations or reacting chemicals under the influence of chaotic flows. Multiple species and nonlinear interactions are explicitly considered, as well as cases of smooth and nonsmooth forcing sources. The small-scale structure can be obtained in terms of characteristic Lyapunov exponents of the flow and of the chemical dynamics. Different kinds of morphological transitions are identified. Numerical results from a three-component plankton dynamics model support the theory, and they serve also to illustrate the influence of asymmetric couplings.
description: 17 pages, 6 figures
Soliton-radiation coupling in the parametrically driven, damped nonlinear Schrödinger equation
Creators: name: Shchesnovich, V. S.
name: Barashenkov, I. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Chaotic Dynamics (nlin.CD)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We use the Riemann-Hilbert problem to study the interaction of the soliton with radiation in the parametrically driven, damped nonlinear Schrödinger equation. The analysis is reduced to the study of a finite-dimensional dynamical system for the amplitude and phase of the soliton and the complex amplitude of the long-wavelength radiation. In contrast to previously utilised Inverse Scattering-based perturbation techniques, our approach is valid for arbitrarily large driving strengths and damping coefficients. We show that, contrary to suggestions made in literature, the complexity observed in the soliton's dynamics cannot be accounted for just by its coupling to the long-wavelength radiation.
description: 36 pages, 6 figures
Bethe's states for generalized XXX and XXZ models
Creators: name: Kirillov, Anatol N.
name: Liskova, Nadejda
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: For any rational number $p_0\ge 1$ we prove an identity of Rogers-Ramanujan-Gordon-Andrews' type. Bijection between the space of states for XXZ model and that of XXX model is constructed.
description: LaTeX, 12 pages
Results on infinite dimensional topology and applications to the structure of the critical set of nonlinear Sturm-Liouville operators
Creators: name: Burghelea, Dan
name: Saldanha, Nicolau C.
name: Tomei, Carlos
Publisher: name: arXiv
Year: 2001
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 34L30, 58B05, Secondary 34B15, 46T05

description: We consider the nonlinear Sturm-Liouville differential operator $F(u) = -u'' + f(u)$ for $u \in H^2_D([0, π])$, a Sobolev space of functions satisfying Dirichlet boundary conditions. For a generic nonlinearity $f: \RR \to \RR$ we show that there is a diffeomorphism in the domain of $F$ converting the critical set $C$ of $F$ into a union of isolated parallel hyperplanes. For the proof, we show that the homotopy groups of connected components of $C$ are trivial and prove results which permit to replace homotopy equivalences of systems of infinite dimensional Hilbert manifolds by diffeomorphisms.
description: 23 pages, 7 figures
The acceleration of cosmic-ray protons in the supernova remnant RX J1713.7-3946
Creators: name: II Collaboration
name: Enomoto, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Protons with energies up to 10^15 eV are the main component[1] of cosmic rays, but evidence for the specific locations where they could have been accelerated to these energies has been lacking[2]. Electrons are known to be accelerated to cosmic-ray energies in supernova remnants[3, 4], and the shock waves associated with such remnants, when they hit the surrounding interstellar medium, could also provide the energy to accelerate protons. The signature of such a process would be the decay of pions (pi0), which are generated when the protons collide with atoms and molecules in an interstellar cloud: pion decay results in g-rays with a particular spectral-energy distribution[5, 6]. Here we report the observation of cascade showers of optical photons resulting fromg-rays at energies of 10^12 eV hitting Earth's upper atmosphere, in the direction of the supernova remnant RX J1713.7-3946. The spectrum is a good match to that predicted by pion decay, and cannot be explained by other mechanisms.
description: 6 pages, 4 figures, PDF format
Supplementary document for Using double pulse laser ablation to enhance the strength of laser-driven shocks - 6824417.pdf
Creators: name: Crowhurst, Jonathan
name: Ly, Sonny
name: Koroglu, Batikan
name: Keller, Wesley
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Machining

description: Additional details pertaining to Figures 2-5
Unification of independence in quantum probability
Creators: name: Lenczewski, Romuald
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For a family of unital free *-algebras with a family of states on them, we construct a sequence of noncommutative probability spaces, which are tensor product algebras with tensor product states and which approximate the free product of states in the sense of convergence of mixed moments to those of free random variables. The constructed sequence of noncommutative probability spaces is called the hierarchy of freeness with the corresponding states called m-free products of states. The first-order approximation corresponding to m=1 gives the Boolean product of states. Thus the product states for the main types of noncommutative independence can be obtained from tensor products of states. Therefore, this approach can be viewed as a unification of independence. We also show how to associate a cocommutative *-bialgebra with the m-free product of states. This approach is developed in the paper for the more general case of the conditionally free product of states and can be easily extended to families of sequences of states.
description: 22 pages, latex, no figures
Supplementary document for Using double pulse laser ablation to enhance the strength of laser-driven shocks - 6781861.pdf
Creators: name: Crowhurst, Jonathan
name: Ly, Sonny
name: Koroglu, Batikan
name: Keller, Wesley
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Additional figures in support of main text
Searching for the Physical Drivers of Eigenvector-1: From Quasars to Nano-Quasars
Creators: name: Zamanov, R.
name: Marziani, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We point out an analogy between two accreting white dwarfs with jets (CH Cyg and MWC 560) and powerful quasars. In spite of the enormous difference in the mass of the central object (a factor about 10^7), the emission lines are strikingly similar to those of I Zw1 (the prototype "Narrow Line Seyfert 1" nucleus whose spectrum is widely used as an FeII template for almost all quasars). The spectral similarity give us the unique possibility to consider the optical Eigenvector-1 diagram using objects less massive by a factor of millions. Our results reinforce the interpretation of the "Eigenvector-1 correlations" found for low redshift quasars as driven mainly by the source luminosity to central compact object mass ratio(L/M). The accreting white dwarfs CH Cyg and MWC 560, their jets and emission lines, may well represent the low energy, non relativistic end of the accretion phenomena, which encompass the most powerful quasars and the microquasars. The remarkable similarities suggest that they may be legitimately considered "nano-quasars".
description: 5 pages, 2 figures, accepted by the Astrophysical Journal (Letters)
Quantum chaos in optical systems: The annular billiard
Creators: name: Hentschel, Martina
name: Richter, Klaus
Publisher: name: arXiv
Year: 2002
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the dielectric annular billiard as a quantum chaotic model of a micro-optical resonator. It differs from conventional billiards with hard-wall boundary conditions in that it is partially open and composed of two dielectric media with different refractive indices. The interplay of reflection and transmission at the different interfaces gives rise to rich dynamics of classical light rays and to a variety of wave phenomena. We study the ray propagation in terms of Poincare surfaces of section and complement it with full numerical solutions of the corresponding wave equations. We introduce and develop an S-matrix approach to open optical cavities which proves very suitable for the identification of resonances of intermediate width that will be most important in future applications like optical communication devices. We show that the Husimi representation is a useful tool in characterising resonances and establish the ray-wave correspondence in real and phase space. While the simple ray picture provides a good qualitative description of certain system classes, only the wave description reveals the quantitative details.
description: 14 pages, 12 figures (partly reduced resolution), accepted for publication in PRE
A non-intrusive reduced order modeling framework for quasi-geostrophic turbulence
Creators: name: Rahman, Sk. Mashfiqur
name: Pawar, Suraj
name: San, Omer
name: Rasheed, Adil
name: Iliescu, Traian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this study, we present a non-intrusive reduced order modeling (ROM) framework for large-scale quasi-stationary systems. The framework proposed herein exploits the time series prediction capability of long short-term memory (LSTM) recurrent neural network such that: (i) in the training phase, the LSTM model is trained on the modal coefficients extracted from the high-resolution data using proper orthogonal decomposition (POD) transform, and (ii) in the testing phase, the trained model predicts the modal coefficients for the total time recursively based on the initial time history. To illustrate the predictive performance of the proposed framework, the mean flow fields and time series response of the field values are reconstructed from the predicted modal coefficients by using an inverse POD transform. As a representative benchmark test case, we consider a two-dimensional quasi-geostrophic (QG) ocean circulation model which, in general, displays an enormous range of fluctuating spatial and temporal scales. We first illustrate that the conventional Galerkin projection based ROM of such systems requires a high number of POD modes to obtain a stable flow physics. In addition, ROM-GP does not seem to capture the intermittent bursts appearing in the dynamics of the first few most energetic modes. However, the proposed non-intrusive ROM framework based on LSTM (ROM-LSTM) yields a stable solution even for a small number of POD modes. We also observe that the ROM-LSTM model is able to capture quasi-periodic intermittent bursts accurately, and yields a stable and accurate mean flow dynamics using the time history of a few previous time states, denoted as the lookback time-window in this paper. Our findings suggest that the proposed ROM framework is capable of predicting noisy nonlinear fluid flows in an extremely efficient way compared to the conventional projection based ROM.
Dynamical Localization in Quasi-Periodic Driven Systems
Creators: name: Abal, G.
name: Donangelo, R.
name: Romanelli, A.
name: Schifino, A. C. Sicardi
name: Siri, R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate how the time dependence of the Hamiltonian determines the occurrence of Dynamical Localization (DL) in driven quantum systems with two incommensurate frequencies. If both frequencies are associated to impulsive terms, DL is permanently destroyed. In this case, we show that the evolution is similar to a decoherent case. On the other hand, if both frequencies are associated to smooth driving functions, DL persists although on a time scale longer than in the periodic case. When the driving function consists of a series of pulses of duration $σ$, we show that the localization time increases as $σ^{-2}$ as the impulsive limit, $σ\to 0$, is approached. In the intermediate case, in which only one of the frequencies is associated to an impulsive term in the Hamiltonian, a transition from a localized to a delocalized dynamics takes place at a certain critical value of the strength parameter. We provide an estimate for this critical value, based on analytical considerations. We show how, in all cases, the frequency spectrum of the dynamical response can be used to understand the global features of the motion. All results are numerically checked.
description: 7 pages, 5 figures included. In this version is that Subsection III.B and Appendix A on the quasiperiodic Fermi Accelerator has been replaced by a reference to published work
Superheavy nuclei in microscopic collective Hamiltonian approach: the impact of beyond mean field correlations on the ground state and fission properties
Creators: name: Shi, Z.
name: Afanasjev, A. V.
name: Li, Z. P.
name: Meng, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The impact of beyond mean field effects on the ground state and fission properties of superheavy nuclei has been investigated in a five-dimensional collective Hamiltonian based on covariant density functional theory. The inclusion of dynamical correlations reduces the impact of the $Z=120$ shell closure and induces substantial collectivity for the majority of the $Z=120$ nuclei which otherwise are spherical at the mean field level (as seen in the calculations with the PC-PK1 functional). Thus, they lead to a substantial convergence of the predictions of the functionals DD-PC1 and PC-PK1 which are different at the mean field level. On the contrary, the predictions of these two functionals remain distinctly different for the $N=184$ nuclei even when dynamical correlations are included. These nuclei are mostly spherical (oblate) in the calculations with PC-PK1 (DD-PC1). Our calculations for the first time reveal significant impact of dynamical correlations on the heights of inner fission barriers of superheavy nuclei with soft potential energy surfaces, the minimum of which at the mean field level is located at spherical shape. These correlations affect the fission barriers of the nuclei, which are deformed in the ground state at the mean field level, to a lesser degree.
description: 11 pages, 8 figures,Physical Review C, in press
Strain-induced modulation of exchange interaction in monolayer zigzag nanoribbons of B$_2$S
Creators: name: Zare, Moslem
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: A.o GENERAL

description: In this work, the strain modulation of electronic structure and magnetic interaction in monolayer nanoribbons of B$_2$S, a recently realized monolayer system, is investigated. In the first part of our study, we focus on how the electronic structure of monolayer nanoribbons of B$_2$S is modified under uniaxial strains, then employing a tight-binding framework together with the conventional theory of elasticity, we discuss how strain-induced local deformations can be used as a means to affect Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in zigzag nanoribbons of B$_2$S. We show that breaking inversion symmetry in zigzag B$_2$S nanoribbons (ZBSNR), e.g., by introducing staggered sublattice potentials, play a key role in the modulation of their electronic properties. More interestingly, for the ZBSNRs belong to the group $M=4p$, with $M$ the width of the ZBSNR and $p$ an integer number, one can see that a band gap, in which a pair of near-midgap bands completely detached from the bulk bands is always observed. As a key feature, the position of the midgap bands in the energy diagram of ZBSNRs can be shifted by applying the in-plane strains $\varepsilon_x$ and $\varepsilon_y$. Moreover, the near-midgap bandwidth monotonically decreases with increasing strength of the strain and increases with the width of the ZBSNR. The energy gap of the ZBSNRs decreased with increasing the applied strain and ribbon width. The spatial and strain dependency of the exchange interaction in various configurations of the magnetic impurities are also evaluated. The magnetic interactions between adsorbed magnetic impurities in B$_2$S nanoribbons can be manipulated by careful strain engineering of such systems. Our results suggest that these tunable electronic and magnetic properties of ZBSNRs mean they may find applications in spintronics and pseudospin electronics based on monolayer B$_2$S nanoribbons.
description: 10 pages, 11 figures. arXiv admin note: substantial text overlap with arXiv:1906.10581
Figure S6 from Accurate wisdom of the crowd from unsupervised dimension reduction
Creators: name: Lingfei Wang
name: Michoel, Tom
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: Computational Biology

description: Crowd wisdom outperformed supervised learning in cross-validation. Empirical distributions and medians of AUROC (left) and AUPR (right) of all crowd wisdom and supervised learning methods in 200 cross-validations with 25%, 40%, 60%, 80%, or 90% (A to E) random partitions of training data are shown for the skin cancer classification dataset. Method names include the numbers of nearest neighbors in brackets, and are italicized for supervised classifiers. Numbers next to the frames represent rankings of the methods in terms of median AUROC or AUPR. Colors reflect methods relative rankings in performance.
Isoscalar dipole excitations in $^{16}$O
Creators: name: Kanada-En'yo, Yoshiko
name: Shikata, Yuki
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Isoscalar (IS) monopole and dipole excitations in $^{16}$O were investigated by the method of shifted basis antisymmetrized molecular dynamics combined with the generator coordinate method. Significant strengths of the IS monopole and dipole transitions were obtained in the low-energy region below the giant resonances. In addition to the compressive mode, which mainly contributes to the high-energy strengths for the IS dipole giant resonance, we obtained a variety of low-energy dipole modes such as the vortical dipole mode in the $1^-_1$ state of the vibrating tetrahedral $4α$ and the $^{12}$C+$α$ cluster structure in the $1^-_2$ state. The $1^-_1$ state contributes to the significant low-energy strength of the IS dipole transition as 5\% of the energy-weighted sum rule, which describes well the experimental data observed by the $α$ inelastic scattering.
description: 10 pages, 6 figures
Limit theorems for the hierarchy of freeness
Creators: name: Franz, Uwe
name: Lenczewski, Romuald
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The central limit theorem, the invariance principle and the Poisson limit theorem for the hierarchy of freeness are studied. We show that for given natural m the limit laws can be expressed in terms of non-crossing partitions of depth smaller or equal to m. For the algebra of polynomials in one variable we solve the associated moment problems and find explicitly the discrete limit measures.
description: 19 pages, latex, no figures
An intercomparison of climate model bias correction methods across Australia: Supplementary information
Creators: name: Irving, Damien
Publisher: name: Zenodo
Year: 2025

description: Supplementary information for the following publication:

Irving D, Takbash A, Peter J, Gammon A, Dowdy A, Dao TL, Kapoor A, Black M, Jakob D, Grose M (submitted). An intercomparison of climate model bias correction methods across Australia. Journal of Southern Hemisphere Earth Systems Science.
Optimization-based control design techniques and tools
Creators: name: Apkarian, P.
name: Noll, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Structured output feedback controller synthesis is an exciting recent concept in modern control design, which bridges between theory and practice in so far as it allows for the first time to apply sophisticated mathematical design paradigms like $H_\infty$- or $H_2$-control within control architectures preferred by practitioners. The new approach to structured $H_\infty$-control, developed by the authors during the past decade, is rooted in a change of paradigm in the synthesis algorithms. Structured design is no longer be based on solving algebraic Riccati equations or matrix inequalities. Instead, optimization-based design techniques are required. In this essay we indicate why structured controller synthesis is central in modern control engineering. We explain why non-smooth optimization techniques are needed to compute structured control laws, and we point to software tools which enable practitioners to use these new tools in high technology applications.
Chemical evolution of starburst galaxies: How does star formation proceed?
Creators: name: Mouhcine, M.
name: Contini, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compute chemical evolution models to constrain the mode and the history of star formation in starburst galaxies as a whole, i.e. over a large range of mass and metallicity. To this end, we investigate the origin of the dispersion observed in the evolution of both nitrogen-to-oxygen abundance ratio and galaxy luminosity as a function of metallicity for a large sample of starburst galaxies. We find that the variation of the star formation efficiency, in the framework of continuous star formation models, produce a scatter equivalent to what is observed in the N/O versus O/H diagram for low-mass HII galaxies only. However, continous star formation models are unable to reproduce i) the scatter observed for massive starburst and UV-selected galaxies in the N/O versus O/H relation, and ii) the scatter in the luminosity versus O/H scaling relation observed for the whole sample of starburst galaxies. The dispersion associated with the distribution of N/O as a function of metallicity, for both low-mass and massive galaxies, is well explained in the framework of bursting star formation models. It is interpreted as a consequence of the time-delay between the ejection of nitrogen and that of oxygen into the ISM. These models also reproduce the spread observed in the luminosity-metallicity relation. Metal-rich spiral galaxies differ from metal-poor ones by a higher star formation efficiency and starburst frequency. Low-mass galaxies experienced a few bursts of star formation whereas massive spiral galaxies experienced numerous and extended powerful starbursts (abridged version).
description: 9 pages, 4 figures. Accepted for publication in A&A
Hexagonal dielectric resonators and microcrystal lasers
Creators: name: Wiersig, Jan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study long-lived resonances (lowest-loss modes) in hexagonally shaped dielectric resonators in order to gain insight into the physics of a class of microcrystal lasers. Numerical results on resonance positions and lifetimes, near-field intensity patterns, far-field emission patterns, and effects of rounding of corners are presented. Most features are explained by a semiclassical approximation based on pseudointegrable ray dynamics and boundary waves. The semiclassical model is also relevant for other microlasers of polygonal geometry.
description: 12 pages, 17 figures (3 with reduced quality)
Flux density measurements for 32 pulsars in the 20 cm band
Creators: name: Xie, Yan-Wei
name: Wang, Jing-Bo
name: Hobbs, George
name: Li, Di
name: Zhang, Jie
name: Dai, Shi
name: Cameron, Andrew
name: Kaczmarek, Jane
name: Zhang, Lei
name: Miao, Chenchen
name: Yuan, Mao
name: Wang, Shen
name: Zhang, Songbo
name: Xu, Renxin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Flux density measurements provide fundamental observational parameters that describe a pulsar. In the current pulsar catalogue, 27% of radio pulsars have no flux density measurement in the 20 cm observing band. Here, we present the first measurements of the flux densities in this band for 32 pulsars observed using the Parkes radio telescope and provide updated pulse profiles for these pulsars. We have used both archival and new observations to make these measurements. Various schemes exist for measuring flux densities. We show how the flux densities measured vary between these methods and how the presence of radio-frequency-interference will bias flux density measurements
description: Accepted by RAA
The effect of additive noise on dynamical hysteresis
Creators: name: Berglund, Nils
name: Gentz, Barbara
Publisher: name: arXiv
Year: 2001
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37H20 (primary); 60H10, 34C55, 34E15, 82C31 (secondary)

description: We investigate the properties of hysteresis cycles produced by a one-dimensional, periodically forced Langevin equation. We show that depending on amplitude and frequency of the forcing and on noise intensity, there are three qualitatively different types of hysteresis cycles. Below a critical noise intensity, the random area enclosed by hysteresis cycles is concentrated near the deterministic area, which is different for small and large driving amplitude. Above this threshold, the area of typical hysteresis cycles depends, to leading order, only on the noise intensity. In all three regimes, we derive mathematically rigorous estimates for expectation, variance, and the probability of deviations of the hysteresis area from its typical value.
description: 30 pages, 5 figures
Speed Selection Mechanism for Propagating Fronts in Reaction-Diffusion Systems with Multiple Fields
Creators: name: Theodorakis, Stavros
name: Leontidis, Epameinondas
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We introduce a speed selection mechanism for front propagation in reaction-diffusion systems with multiple fields. This mechanism applies to pulled and pushed fronts alike, and operates by restricting the fields to large "finite" intervals in the comoving frames of reference. The unique velocity for which the center of a monotonic solution for a particular field is insensitive to the location of the ends of the finite interval is the velocity that is physically selected for that field, making thus the solution approximately translation invariant. The fronts for the various fields may propagate at different speeds, all of them being determined through this mechanism. We present analytic results for the case of piecewise parabolic potentials, and numerical results for other cases.
description: TeX file, 18 pages and 5 postscript figures, to appear in Physical Review E
Responses of Landrace Rice to Organic Fertilizer for Physiological Traits, Grain Yield and Total Phenolic Content
Creators: name: Chorkaew Aninbon
Publisher: name: King Mongkut's Institute of Technology Ladkrabang
Year: 2019
Subjects: fertilizer types, crop growth rate, polyphenol, yield components

description: Current Applied Science and Technology, 19, 3, 297-305
Spiraling String in Gauss-Bonnet Geometry
Creators: name: Atashi, Mahdi
name: Fadafan, Kazem Bitaghsir
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we consider a spiraling string falling in the bulk with Gauss$-$Bonnet geometry that is holographically dual to a heavy particle rotating through a hot plasma at finite coupling. One finds such interesting simple problem provides a novel perspective on different channels of the energy loss in the corresponding strongly coupled theory. Depends on the sign of the coupling, one observes that the influence of finite coupling on total energy loss and contribution of drag force and radiation channels appears as a shift on curves with respect to the plasma with infinite coupling. Also we found that crossover between regime in which drag force contribution is predominant to regime in which energy loss is due to radiation, does not depend on the Gauss$-$Bonnet coupling.
description: 13 pages, 5 figures, Mathematica code is available in the attached files
Filtered stochastic calculus
Creators: name: Lenczewski, Romuald
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: By introducing a color filtration to the multiplicity space, we extend the quantum Ito calculus on multiple symmetric Fock space to the framework of filtered adapted biprocesses. In this new notion of adaptedness,``classical'' time filtration makes the integrands similar to adapted processes, whereas ``quantum'' color filtration produces their deviations from adaptedness. An important feature of this calculus, which we call filtered stochastic calculus, is that it provides an explicit interpolation between the main types of calculi, regardless of the type of independence, including freeness, Boolean independence (more generally, m-freeness) as well as tensor independence. Moreover, it shows how boson calculus is ``deformed'' by other noncommutative notions of independence.
description: 37 pages, latex, no figures, accepted for publication in IDA-QP
Revisiting Explicit Negation in Answer Set Programming
Creators: name: Aguado, Felicidad
name: Cabalar, Pedro
name: Fandinno, Jorge
name: Pearce, David
name: Perez, Gilberto
name: Vidal, Concepcion
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A common feature in Answer Set Programming is the use of a second negation, stronger than default negation and sometimes called explicit, strong or classical negation. This explicit negation is normally used in front of atoms, rather than allowing its use as a regular operator. In this paper we consider the arbitrary combination of explicit negation with nested expressions, as those defined by Lifschitz, Tang and Turner. We extend the concept of reduct for this new syntax and then prove that it can be captured by an extension of Equilibrium Logic with this second negation. We study some properties of this variant and compare to the already known combination of Equilibrium Logic with Nelson's strong negation. Under consideration for acceptance in TPLP.
description: Paper presented at the 35th International Conference on Logic Programming (ICLP 2019), Las Cruces, New Mexico, USA, 20-25 September 2019, 16 pages