cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exciton diffusion in monolayer semiconductors with suppressed disorder
Creators: name: Zipfel, Jonas
name: Kulig, Marvin
name: Perea-Causín, Raül
name: Brem, Samuel
name: Ziegler, Jonas D.
name: Rosati, Roberto
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Glazov, Mikhail M.
name: Malic, Ermin
name: Chernikov, Alexey
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

description: Tightly bound excitons in monolayer semiconductors represent a versatile platform to study two-dimensional propagation of neutral quasiparticles. Their intrinsic properties, however, can be severely obscured by spatial energy fluctuations due to a high sensitivity to the immediate environment. Here, we take advantage of the encapsulation of individual layers in hexagonal boron nitride to strongly suppress environmental disorder. Diffusion of excitons is then directly monitored using time- and spatially-resolved emission microscopy at ambient conditions. We consistently find very efficient propagation with linear diffusion coefficients up to 10\,cm$^2$/s, corresponding to room temperature effective mobilities as high as 400\,cm$^2$/Vs as well as a correlation between rapid diffusion and short population lifetime. At elevated densities we detect distinct signatures of many-particle interactions and consequences of strongly suppressed Auger-like exciton-exciton annihilation. A combination of analytical and numerical theoretical approaches is employed to provide pathways towards comprehensive understanding of the observed linear and non-linear propagation phenomena. We emphasize the role of dark exciton states and present a mechanism for diffusion facilitated by free electron hole plasma from entropy-ionized excitons.
Mithrax tortugae Rathbun 1920
Creators: name: Coelho, Petrônio Alves
name: Almeida, Alexandre Oliveira De
name: Bezerra, Luis Ernesto Arruda
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Mithracidae
Mithrax
Mithrax tortugae

description: Mithrax tortugae Rathbun, 1920
Western Atlantic: Florida, West Indies, Colombia, Venezuela to Brazil (São Paulo) (Melo 1996).
 Occurrence in northern and northeastern Brazil: PA: Barros & Pimentel (2001); PE: Coelho et al. (2002); AL: Coelho et al. (1990); BA: Almeida et al. (2007a).
description: Published as part of Coelho, Petrônio Alves, Almeida, Alexandre Oliveira De & Bezerra, Luis Ernesto Arruda, 2008, Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil, pp. 1-58 in Zootaxa 1956 (1) on page 23, DOI: 10.11646/zootaxa.1956.1.1, http://zenodo.org/record/5241063
Peculiarities in pseudo-transitions of a mixed spin-$(1/2,1)$ Ising-Heisenberg double-tetrahedral chain in an external magnetic field
Creators: name: Rojas, Onofre
name: Strečka, Jozef
name: Derzhko, Oleg
name: de Souza, S. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently, it has been rigorously verified that several one-dimensional (1D) spin models may exhibit a peculiar pseudo-transition accompanied with anomalous response of thermodynamic quantities in a close vicinity of pseudo-critical temperature. In the present work we will introduce and exactly solve a mixed spin-(1/2,1) Ising-Heisenberg double-tetrahedral chain in an external magnetic field as another particular example of 1D lattice-statistical model with short-range interactions that displays a pseudo-transition of this type. The investigated model exhibits at zero temperature three ferrimagnetic phases, three frustrated phases, and one saturated paramagnetic phase. The ground-state phase diagram involves five unusual interfaces (phase boundaries), at which the residual entropy per site equals to a larger entropy of one of two coexisting phases. Four such interfaces are between a non-degenerate ferrimagnetic phase and a macroscopically degenerate frustrated phase, while one interface is between two non-degenerate ferrimagnetic phases. Though thermal excitations typically destroy all fingerprints of zero-temperature phase transitions of 1D lattice-statistical models with short-range forces, the mixed spin-(1/2,1) Ising-Heisenberg double-tetrahedral chain is quite robust with respect to thermal excitations and it displays peculiar pseudo-transitions close to all five aforementioned interfaces.
description: 10 pages, 11 figures
The Littlest Higgs
Creators: name: Arkani-Hamed, N.
name: Cohen, A. G.
name: Katz, E.
name: Nelson, A. E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an economical theory of natural electroweak symmetry breaking, generalizing an approach based on deconstruction. This theory is the smallest extension of the Standard Model to date that stabilizes the electroweak scale with a naturally light Higgs and weakly coupled new physics at TeV energies. The Higgs is one of a set of pseudo Goldstone bosons in an $SU(5)/SO(5)$ nonlinear sigma model. The symmetry breaking scale $f$ is around a TeV, with the cutoff $Λ\lsim 4πf \sim $ 10 TeV. A single electroweak doublet, the ``little Higgs'', is automatically much lighter than the other pseudo Goldstone bosons. The quartic self-coupling for the little Higgs is generated by the gauge and Yukawa interactions with a natural size $O(g^2,λ_t^2)$, while the top Yukawa coupling generates a negative mass squared triggering electroweak symmetry breaking. Beneath the TeV scale the effective theory is simply the minimal Standard Model. The new particle content at TeV energies consists of one set of spin one bosons with the same quantum numbers as the electroweak gauge bosons, an electroweak singlet quark with charge 2/3, and an electroweak triplet scalar. One loop quadratically divergent corrections to the Higgs mass are cancelled by interactions with these additional particles.
description: 15 pages. References added. Corrected typos in the discussion of the top Yukawa coupling
Broadband Single-Mode Hybrid Photonic Crystal Waveguides for Terahertz Integration on a Chip
Creators: name: Li, Haisu
name: Low, Mei Xian
name: Ako, Rajour
name: Bhaskaran, Madhu
name: Sriram, Sharath
name: Withayachumnankul, Withawat
name: Kuhlmey, Boris
name: Atakaramians, Shaghik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A novel terahertz hybrid waveguide chip consisting of silicon photonic crystals sandwiched in parallel gold plates is developed. Both simulation and experimental results demonstrate that the hybrid waveguide offers a wide single-mode transmission window with low group velocity dispersion and low loss. This compact, substrate-free terahertz chip would play a significant role in broadband, dense-integrated, multi-functional terahertz systems.
Masking auditory feedback does not eliminate repetition reduction
Creators: name: Jacobs, Cassandra L.
name: Loucks, Torrey M.
name: Watson, Duane G.
name: Dell, Gary S.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Repetition reduces word duration. Explanations of this process have appealed to audience design, internal production mechanisms, and combinations thereof [e.g. Kahn, J. M., & Arnold, J. E. (2015). Articulatory and lexical repetition effects on durational reduction: Speaker experience vs. common ground. Language, Cognition and Neuroscience, 30, 103–119]. Jacobs, Yiu, Watson, and Dell [2015. Why are repeated words produced with reduced durations? Evidence from inner speech and homophone production. Journal of Memory and Language, 84, 37–48] proposed the auditory feedback hypothesis, which states that speakers must hear a word, produced either by themselves or another speaker, in order for duration reduction on a subsequent production. We conducted a strong test of the auditory feedback hypothesis in two experiments, in which we used masked auditory feedback and whispering to prevent speakers from hearing themselves fully. Both experiments showed that despite limiting the sources of normal auditory feedback, repetition reduction was observed to equal extents in masked and unmasked conditions, suggesting that repetition reduction may be supported by multiple sources, such as somatosensory feedback and feedforward signals, depending on their availability.
Cosmological Magnetic Fields from Primordial Helical Seeds
Creators: name: Sigl, Guenter
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Most early Universe scenarios predict negligible magnetic fields on cosmological scales if they are unprocessed during subsequent expansion of the Universe. We present a new numerical treatment of the evolution of primordial fields and apply it to weakly helical seeds as they occur in certain early Universe scenarios. We find that initial helicities not much larger than the baryon to photon number can lead to fields of about 10^{-13} Gauss with coherence scales slightly below a kilo-parsec today.
description: 4 revtex pages, 2 postscript figures included
Light edges in 1-planar graphs of minimum degree 3
Creators: name: Niu, Bei
name: Zhang, Xin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A graph is 1-planar if it can be drawn in the plane so that each edge is crossed by at most one another edge. In this work we prove that each 1-planar graph of minimum degree at least $3$ contains an edge with degrees of its endvertices of type $(3,\leq23)$ or $(4,\leq11)$ or $(5,\leq9)$ or $(6,\leq8)$ or $(7,7)$. Moreover, the upper bounds $9,8$ and $7$ here are sharp and the upper bounds $23$ and $11$ are very close to the possible sharp ones, which may be 20 and 10, respectively. This generalizes a result of Fabrici and Madaras [Discrete Math., 307 (2007) 854--865] which says that each 3-connected 1-planar graph contains a light edge, and improves a result of Hudák and Šugerek [Discuss. Math. Graph Theory, 32(3) (2012) 545--556], which states that each 1-planar graph of minimum degree at least $4$ contains an edge with degrees of its endvertices of type $(4,\leq 13)$ or $(5,\leq 9)$ or $(6,\leq 8)$ or $(7, 7)$.
description: This paper was submitted to Discrete Mathematics on Dec.4, 2018, and will be published there
Euprognatha gracilipes A. Milne-Edwards 1878
Creators: name: Coelho, Petrônio Alves
name: Almeida, Alexandre Oliveira De
name: Bezerra, Luis Ernesto Arruda
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Inachoididae
Euprognatha
Euprognatha gracilipes

description: Euprognatha gracilipes A. Milne-Edwards, 1878
Western Atlantic: Florida, Gulf of Mexico, West Indies to Brazil (Santa Catarina) (Melo 1996).
 Occurrence in northern and northeastern Brazil: AP, PA, CE: Coelho (1969); MA: Coelho & Ramos-Porto (1980); RN, PB, PE, AL: Barreto et al. (1993a).
description: Published as part of Coelho, Petrônio Alves, Almeida, Alexandre Oliveira De & Bezerra, Luis Ernesto Arruda, 2008, Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil, pp. 1-58 in Zootaxa 1956 (1) on page 20, DOI: 10.11646/zootaxa.1956.1.1, http://zenodo.org/record/5241063
title: 01_2434
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Memorias e futurismos no projeto Porto Maravilha, Rio de Janeiro
Creators: name: Correia, Mayã Martins
Publisher: name: Zenodo
Year: 2019

description: Texto integral do capítulo "Memórias e futurismos no projeto Porto Maravilha, Rio de Janeiro", publicado na coletânea “Práticas, Conflitos, Espaços: pesquisas em Antropologia da Cidade”, de 2019. Para citar: MARTINS, Mayã. Memórias e futurismos no projeto Porto Maravilha, Rio de Janeiro. In: Heitor Frúgoli Jr.; Enrico Spaggiari; Guilhermo Aderaldo. (Org.). Práticas, conflitos, espaços: pesquisas em antropologia da cidade. 1ed.São Paulo: Ed. Gramma; Ed. Terceiro Nome (Coleção Antropologia Hoje). Prefácio: Michel Agier. Apoio: FAPESP, 2019, p. 143-166.
Nemausa acuticornis
Creators: name: Coelho, Petrônio Alves
name: Almeida, Alexandre Oliveira De
name: Bezerra, Luis Ernesto Arruda
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Mithracidae
Nemausa
Nemausa acuticornis

description: Nemausa acuticornis (Stimpson, 1871)
 Western Atlantic: North Carolina to Florida, Gulf of Mexico, West Indies to Brazil (São Paulo) (Melo 1996; Alves et al. 2006).
 Occurrence in northern and northeastern Brazil: SFN, RA, PB, SE: Coelho (1971a), as Mithrax (Mithrax) acuticornis; AP, PA, MA, PI, CE, RN, PE: Coelho (1969), as M. (Mithrax) acuticornis; AL: Coelho & Ramos (1972), as M. (Mithrax) acuticornis; BA: Rathbun (1925), as M. (Mithrax) acuticornis.
description: Published as part of Coelho, Petrônio Alves, Almeida, Alexandre Oliveira De & Bezerra, Luis Ernesto Arruda, 2008, Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil, pp. 1-58 in Zootaxa 1956 (1) on page 23, DOI: 10.11646/zootaxa.1956.1.1, http://zenodo.org/record/5241063
Two-dimensional electron gas: correlation energy versus density and spin polarization
Creators: name: Gori-Giorgi, Paola
name: Attaccalite, Claudio
name: Moroni, Saverio
name: Bachelet, Giovanni B.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a simple analytic representation of the correlation energy for the two-dimensional electron gas, as a function of the density and the spin polarization. This new parametrization includes most of the known high- and low- density limits and fits our new fixed-node diffusion Monte Carlo simulations, performed for a wide range of electron densities and spin-polarization states. In this way we provide a reliable local-spin-density energy functional for two-dimensional systems. The corresponding correlation potential is discussed and compared with previous models.
description: minor typos corrected, see also cond-mat/0109492
The Particle and Energy Cost of Entanglement of Hawking Radiation with the Final Vacuum State
Creators: name: Wald, Robert M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A semiclassical analysis shows that in the process of black hole formation and evaporation, an initial pure state will evolve to a mixed state, i.e., information will be lost. One way of avoiding this conclusion without invoking drastic modifications of the local laws of physics in a low curvature regime would be for the information to be restored at the very end of the evaporation process. It is normally envisioned that this would require a final burst of particles entangled with the early time Hawking radiation. This would imply the emission of an extremely large number of particles from an object of Planck size and mass and would appear to be blatantly ruled out by energy considerations. However, Hotta, Schutzhold, and Unruh have analyzed a $(1+1)$-dimensional moving mirror analog of the Hawking process and have found that, in this model, information is restored via entanglement of the early time Hawking radiation with vacuum fluctuations in the spacetime region to the future of the event where the mirror returns to inertial motion. We analyze their model here and give a precise formulation of this entanglement by introducing the notion of "Milne particles." We then analyze the inertial particle and energy cost of such an entanglement of Hawking radiation with vacuum fluctuations. We show that that, in fact, the entanglement of early time Hawking radiation with vacuum fluctuations requires the emission of at least as many late time inertial particles as Hawking particles. Although the energy cost can be made small in the $(1+1)$-dimensional mirror system, this should not be the case for the $(3+1)$-dimensional evaporating black hole system. Thus, vacuum entanglement has the same difficulties as the more usual burst scenarios for attempting to avoid information loss.
description: 28 pages, 3 figures; typos corrected and other very minor changes made in v2
Effects of conventional and ballistic resistance training on imaging biomarkers of osteoporosis and osteoarthritis in healthy postmenopausal women: the REPROOF study
Creators: name: Caliskan, Ogulcan
Publisher: name: Loughborough University
Year: 2025

description: Effects of conventional and ballistic resistance training on imaging biomarkers of osteoporosis and osteoarthritis in healthy postmenopausal women: the REPROOF study
The mass of dusty clumps with temperature and density structure
Creators: name: Cesaroni, Riccardo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We consider a dusty clump in the two cases of spherical and cylindrical symmetry to investigate the effect of temperature and density gradients on the observed flux density. Conversely, we evaluate how the presence of such gradients affects the calculation of the clump mass from the observed flux. We provide the reader with approximate expressions relating flux density and mass in the optically thick and thin limits, in the Rayleigh-Jeans regime, and discuss the reliability of these expressions by comparing them to the outcome of a numerical code. Finally, we present an application of our calculations to three examples taken from the literature, which shows how the correction introduced after taking into account temperature and density gradients may affect our conclusions on the stability of the clumps.
Fermi surface reconstruction and electron dynamics at the charge-density-wave transition in TiSe2
Creators: name: Knowles, Patrick
name: Yang, Bo
name: Muramatsu, Takaki
name: Moulding, Owen
name: Buhot, Jonathan
name: Sayers, Charles
name: Da Como, Enrico
name: Friedemann, Sven
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The evolution of the charge carrier concentrations and mobilities are examined across the charge-density-wave (CDW) transition in TiSe2. Combined quantum oscillation and magnetotransport measurements show that a small electron pocket dominates the electronic properties at low temperatures whilst an electron and hole pocket contribute at room temperature. At the CDW transition, an abrupt Fermi surface reconstruction and a minimum in the electron and hole mobilities are extracted from two-band and Kohler analysis of magnetotransport measurements. The minimum in the mobilities is associated with the overseen role of scattering from the softening CDW mode. With the carrier concentrations and dynamics dominated by the CDW and the associated bosonic mode, our results highlight TiSe2 as a prototypical system to study the Fermi surface reconstruction at a density-wave transition.
description: 15 pages, 3 figures, including supplementary information
Production of ordered silicon nanocrystals by low-energy ion sputtering
Creators: name: Gago, Raul
name: Vazquez, Luis
name: Cuerno, Rodolfo
name: Varela, Maria
name: Ballesteros, Carmen
name: Albella, Jose M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report on the production of ordered assemblies of silicon nanostructures by means of irradiation of a Si(100) substrate with 1.2 keV Ar ions at normal incidence. Atomic Force and High-Resolution Transmission Electron microscopies show that the silicon structures are crystalline, display homogeneous height, and spontaneously arrange into short-range hexagonal ordering. Under prolonged irradiation (up to 16 hours) all dot characteristics remain largely unchanged and a small corrugation develops at long wavelengths. We interpret the formation of the dots as a result of an instability due to the sputtering yield dependence on the local surface curvature
description: 4 two-column pages (revtex4), 3 figures (higher quality copies in the printed jrnl. version)
USIA Poll # 1985-I85045: May 1985 Strategic Defense Initiative (SDI) Survey
Creators: name: USIA
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Confidence in United States (2); actions and policies of United States/Soviet Union (2); dedication to disarming (2); Strategic Defense Initiative (SDI) (6); importance of anti-missile research (1); effects of anti-missile defense system (3); Soviet Union conducting research on anti-missiles technology (3); opinions about US anti-missile defense system (12); NATO involvement in anti-missile research (1); German involvement in anti-missile research (2); sharing anti-missile technology (1); US defending other countries from atomic attack (2); US vs. Soviet military strength (4).
Multi-Quark Colour Decompositions from Unitarity
Creators: name: Ochirov, Alexander
name: Page, Ben
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Any loop QCD amplitude at full colour is constructed from kinematic and gauge-group building blocks. In a unitarity-based on-shell framework, both objects can be reconstructed from their respective counterparts in tree-level amplitudes. This procedure is at its most powerful when aligned with flexible colour decompositions of tree-level QCD amplitudes. In this note we derive such decompositions for amplitudes with an arbitrary number of quarks and gluons from the same principle that is used to bootstrap kinematics - unitarity factorisation. In the process we formulate new multi-quark bases and provide closed-form expressions for the new decompositions. We then elaborate upon their application in colour decompositions of loop multi-quark amplitudes.
description: 29 pages + appendices + references; v2 minor text improvements, journal version (with author-typeset eqns)
Educational material in Sustainability Science for students and teachers in Natural resource management and social-ecological systems
Creators: name: Colding, Johan
Publisher: name: Stockholm University Open Educational Resources
Year: 2020
Subjects: subject: 50203 Environmental Education and Extension
subject: FOS: Earth and related environmental sciences
subject: 50299 Environmental Science and Management not elsewhere classified
subject: 50209 Natural Resource Management

description: This reading list represents an overview of some of the authors own educational material in natural resource management and studies of social-ecological systems. The material is suitable at courses and programs for teachers and students in higher education, particularly in Sustainability Science, and deals with a number of analytical frameworks and basic theoretical concepts to study resilience management of natural resources in interlinked social and ecological systems.
Picroceroides tubularis Miers 1886
Creators: name: Coelho, Petrônio Alves
name: Almeida, Alexandre Oliveira De
name: Bezerra, Luis Ernesto Arruda
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Epialtidae
Picroceroides
Picroceroides tubularis

description: Picroceroides tubularis Miers, 1886
Western Atlantic: Florida, Gulf of Mexico, West Indies to Brazil (Espírito Santo) (Melo 1996).
 Occurrence in northern and northeastern Brazil: SNC, FN, PI, PB, AL: Coelho (1971a); SFN, RA: Coelho Filho (2006); AP: Fausto Filho & Sampaio Neto (1976); PA: Barreto et al. (1993a); MA, CE, RN: Coelho (1969); PE, BA: Miers (1886).
description: Published as part of Coelho, Petrônio Alves, Almeida, Alexandre Oliveira De & Bezerra, Luis Ernesto Arruda, 2008, Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil, pp. 1-58 in Zootaxa 1956 (1) on page 24, DOI: 10.11646/zootaxa.1956.1.1, http://zenodo.org/record/5241063
A Rigorous Theory of Conditional Mean Embeddings
Creators: name: Klebanov, Ilja
name: Schuster, Ingmar
name: Sullivan, T. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistics Theory (math.ST)
subject: Functional Analysis (math.FA)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 46E22, 62J02, 28C20

description: Conditional mean embeddings (CMEs) have proven themselves to be a powerful tool in many machine learning applications. They allow the efficient conditioning of probability distributions within the corresponding reproducing kernel Hilbert spaces (RKHSs) by providing a linear-algebraic relation for the kernel mean embeddings of the respective joint and conditional probability distributions. Both centred and uncentred covariance operators have been used to define CMEs in the existing literature. In this paper, we develop a mathematically rigorous theory for both variants, discuss the merits and problems of each, and significantly weaken the conditions for applicability of CMEs. In the course of this, we demonstrate a beautiful connection to Gaussian conditioning in Hilbert spaces.
description: 30 pages, 3 figures
Statistical Significance of Periodicity and Log-Periodicity with Heavy-Tailed Correlated Noise
Creators: name: Zhou, Wei-Xing
name: Sornette, Didier
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We estimate the probability that random noise, of several plausible standard distributions, creates a false alarm that a periodicity (or log-periodicity) is found in a time series. We investigate general situations with non-Gaussian correlated noises and present synthetic tests on the detectability and statistical significance of periodic components. Increasing heavy-tailness (respectively correlations describing persistence) tends to decrease (respectively increase) the false-alarm probability of finding a large spurious Lomb peak. Increasing anti-persistence tends to decrease the false-alarm probability. We also study the interplay between heavy-tailness and long-range correlations. In order to fully determine if a Lomb peak signals a genuine rather than a spurious periodicity, one should in principle characterize the Lomb peak height, its width and its relations to other peaks in the complete spectrum. As a step towards this full characterization, we construct the joint-distribution of the frequency position (relative to other peaks) and of the height of the highest peak of the power spectrum. We also provide the distributions of the ratio of the second highest Lomb peak to the maximum peak. Using the insight obtained by the present statistical study, we re-examine previously reported claims of ``log-periodicity'' and find that the credibility for log-periodicity in 2D-freely decaying turbulence is weakened while it is strengthened for fracture, for the ion-signature prior to the Kobe earthquake and for financial markets.
description: Latex document of 35 pages including 17 eps figures, in press in Int. J. Mod. Phys. C 13 (2) (2001)
Stenocionops spinosissimus
Creators: name: Coelho, Petrônio Alves
name: Almeida, Alexandre Oliveira De
name: Bezerra, Luis Ernesto Arruda
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Epialtidae
Stenocionops
Stenocionops spinosissimus

description: Stenocionops spinosissimus (Saussure, 1857)
Western Atlantic: North Carolina to Florida, Gulf of Mexico, West Indies to Uruguay (Melo 1996).
 Occurrence in northern and northeastern Brazil: FN: Coelho (1971a); AP, PA: Silva et al. (2001); RN: Coelho et al. (1986).
description: Published as part of Coelho, Petrônio Alves, Almeida, Alexandre Oliveira De & Bezerra, Luis Ernesto Arruda, 2008, Checklist of the marine and estuarine Brachyura (Crustacea: Decapoda) of northern and northeastern Brazil, pp. 1-58 in Zootaxa 1956 (1) on page 24, DOI: 10.11646/zootaxa.1956.1.1, http://zenodo.org/record/5241063
Rational Design Protocols for Size-Based Particle Sorting Microdevices Using Symmetry-Induced Cyclical Dynamics
Creators: name: Rodriguez-Gonzalez, Arnaldo
name: Gleghorn, Jason P.
name: Kirby, Brian J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 37N10, 76T20

description: In this paper, we describe the unification and extension of multiple kinematic theories on the advection of colloidal particles through periodic obstacle lattices of arbitrary geometry and infinitesimally small obstacle size. We focus specifically on the particle displacement lateral to the flow direction (termed "deterministic lateral displacement") and the particle-obstacle interaction frequency, and develop novel methods for describing these as a function of particle size and lattice parameters for arbitrary lattice geometries for the first time in the literature. We then demonstrate design algorithms for microfluidic devices consisting of chained obstacle lattices of this type that approximate any lateral displacement function of size to arbitrary accuracy with respect to multiple optimization metrics, prove their validity mathematically, and compare the generated results favorably to designs in the literature with respect to metrics such as accuracy, device size, and complexity.
description: v.3: 37 pages, included published version information, replaced Figures 6 and 9, typos corrected throughout, format changed for better readability
Giant thermal magnetoconductivity in CrCl$_3$ and a general model for spin-phonon scattering
Creators: name: Pocs, Christopher A.
name: Leahy, Ian A.
name: Zheng, Hao
name: Cao, Gang
name: Choi, Eun-Sang
name: Do, S. -H.
name: Choi, Kwang-Yong
name: Normand, B.
name: Lee, Minhyea
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Insulating quantum magnets lie at the forefront both of fundamental research into quantum matter and of technological exploitation in the increasingly applied field of spintronics. In this context, the magnetic thermal transport is a particularly sensitive probe of the elementary spin and exotic topological excitations in unconventional magnetic insulators. However, magnetic contributions to heat conduction are invariably intertwined with lattice contributions, and thus the issue of spin-phonon coupling in determining the spin and thermal transport properties becomes more important with emergent topological magnetic system. Here we report the observation of an anomalously strong enhancement of the thermal conductivity, occurring at all relevant temperatures, in the layered honeycomb material CrCl$_3$ in the presence of an applied magnetic field. Away from the magnetically ordered phase at low temperatures and small fields, there is no coherent spin contribution to the heat conduction, and hence the effect must be caused by a strong suppression of the phonon thermal conductivity due to magnetic fluctuations, which are in turn suppressed by the field. We build an empirical model for the thermal conductivity of CrCl$_3$ within a formalism assuming an independently determined number of spin-flip processes and an efficiency of the phonon scattering events they mediate. By extracting the intrinsic phonon thermal conductivity we obtain a quantitative description at all fields and temperatures and demonstrate that the scattering efficiency is entirely independent of the field. In this way we use CrCl$_3$ as a model system to understand the interactions between spin and phonon excitations in the context of thermal transport. We anticipate that the completely general framework we introduce will have broad implications for the interpretation of transport phenomena in magnetic quantum materials.
description: 15 pages, 10 figures
Mode-independent quantum entanglement for light
Creators: name: Sperling, Jan
name: Perez-Leija, Armando
name: Busch, Kurt
name: Silberhorn, Christine
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the problem of the persistence of entanglement of quantum light under mode transformations, where orthogonal modes define the parties between which quantum correlations can occur. Since the representation of a fixed photonic quantum state in different optical mode bases can substantially influence the entanglement properties of said state, we devise a constructive method to obtain families of states with the genuine feature of remaining entangled for any choice of mode decomposition. In the first step, we focus on two-photon states in a bipartite system and optimize their entanglement properties with respect to unitary mode transformations. Applying a necessary and sufficient entanglement witness criteria, we are then able to prove that the class of constructed states is entangled for arbitrary mode decompositions. Furthermore, we provide optimal bounds to the robustness of the mode-independent entanglement under general imperfections. In the second step, we demonstrate the power of our technique by showing how it can be straightforwardly extended to higher-order photon numbers in multipartite systems, together with providing a generally applicable and rigorous definition of mode-independent separability and inseparability for mixed states.
Multipoles of the relativistic galaxy bispectrum
Creators: name: de Weerd, Eline M.
name: Clarkson, Chris
name: Jolicoeur, Sheean
name: Maartens, Roy
name: Umeh, Obinna
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Above the equality scale the galaxy bispectrum will be a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and other theories of the early universe. On these scales a variety of relativistic effects come into play once the galaxy number-count fluctuation is projected onto our past lightcone. By decomposing the Fourier-space bispectrum into invariant multipoles about the observer's line of sight we examine in detail how the relativistic effects contribute to these. We show how to perform this decomposition analytically, which is significantly faster for subsequent computations. While all multipoles receive a contribution from the relativistic part, odd multipoles arising from the imaginary part of the bispectrum have no Newtonian contribution, making the odd multipoles a smoking gun for a relativistic signature in the bispectrum for single tracers. The dipole and the octopole are significant on equality scales and above where the Newtonian approximation breaks down. This breakdown is further signified by the fact that the even multipoles receive a significant correction on very large scales.
description: v3 has improved presentation. Version accepted by JCAP
title: 01_1425
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: LaMOP

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Patterns of nesting and nest success in an evergreen forest in Southeast Asia
Creators: name: Pierce, Andrew J.
name: Wangworn Sankamethawee
name: Larkin A. Powell
name: Gale, George A.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Southeast Asian forest birds are threatened by the highest rate of tropical deforestation globally, but conservation efforts regionally have very limited information from which to make policy and management plans. To provide baseline data on nesting and nest success for forest birds from an intact forest, we monitored 1506 nests of 54 species during 2003–2011 in a seasonally wet forest at 14°N in north-eastern Thailand. We estimated daily nest survival (DSR) for 37 species (n = 1082 nests). Early nesting species were more successful and ground-nesting birds had higher DSR (0.962) than above-ground nests (0.934). DSR for 13 focal species (n = 956 nests) varied from 0.842 to 0.975. In general, DSR was unrelated to season or nest height for focal species although one species was more successful early in their breeding season while for another, higher nests were more successful. Nest survival was low, and predation accounted for 92% of nest failures. Two nest predators, Northern Pig-tailed Macaque Macaca nemestrina and Green Cat Snake Boiga cyanea accounted for 43.7% and 21.8% of the predation events, respectively. We suggest that local conditions, even in intact forests, may produce complex dynamics for reproductive success of breeding birds, and we posit that presence of the dominant nest predators was largely responsible for patterns we observed among species, particularly the higher DSR of ground-nesting birds. Our data further support the idea that DSR is generally lower in relatively undisturbed sites in the tropics than similarly undisturbed sites in the temperate zone.
Bumps and Oscillons in Networks of Spiking Neurons
Creators: name: Schmidt, Helmut
name: Avitabile, Daniele
Publisher: name: arXiv
Year: 2019
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Dynamical Systems (math.DS)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37N25, 65P30, 92B20

description: We study localized patterns in an exact mean-field description of a spatially-extended network of quadratic integrate-and-fire (QIF) neurons. We investigate conditions for the existence and stability of localized solutions, so-called bumps, and give an analytic estimate for the parameter range where these solutions exist in parameter space, when one or more microscopic network parameters are varied. We develop Galerkin methods for the model equations, which enable numerical bifurcation analysis of stationary and time-periodic spatially-extended solutions. We study the emergence of patterns composed of multiple bumps, which are arranged in a snake-and-ladder bifurcation structure if a homogeneous or heterogeneous synaptic kernel is suitably chosen. Furthermore, we examine time-periodic, spatially-localized solutions (oscillons) in the presence of external forcing, and in autonomous, recurrently coupled excitatory and inhibitory networks. In both cases we observe period doubling cascades leading to chaotic oscillations.
description: 13 pages, 11 figures
Der Einfluß unterschiedlicher Umweltfaktoren auf Größenwachstum und Schalenbau bei Ostracoden
Creators: name: Göttner, Jan-Jürgen
Publisher: name: Berlin, Reimer
Year: 1980

description: Bei Züchtungsversuchen mit Ostracoden der Brackwasserart» C y p v i n o t u s s a l i n u s , wurde der Einfluß verschiedener Umweltfaktoren auf die Population untersucht. Es zeigte sich, daß eine nicht ausreichende Belichtung einer Verminderung des Längenwachstums um 1/3 und ein Absinken der Populationsdichte um über die Hälfte zur Folge hat. In diesem Fall ist auch der Sauerstoffgehalt des Wassers ein limitierender Faktor, der bei normalen Lichtverhältnissen in ausreichender Menge vorhanden ist. Der Salzgehalt des Wassers führt ebenfalls zu starken Größen und Abundanzschwankungen. Das Minimum für beide Werte lag bei 5%0 , deutlich niedriger als bei den Populationen bei 0%0 und 20%0 . Da auf Grund der verschiedenen Umweltfaktoren Größenunterschiede innerhalb einer Art von 200-300% zu erwarten sind, ist eine Arteneinteilung nach der Größe nicht zu rechtfertigen. Mit steigender Salinität nimmt die Skulptierung der ursprünglich glatten Schale zu. Die Sattelbildung der Schalen wird mit der Muskelkontraktion erklärt. Am stärksten ist die Verformung, wenn die Schalenstabilität verringert wird wie beim verstärkten Einbau von Strontium in die Schale. Die Schalenzusammensetzung ändert sich bei natürlichen Umweltbedingungen fast nicht. Schwankende Magnesiumgehalte sind temperaturabhängig. Mit steigender Strontiumkonzentration im Wasser kommt es zum verstärkten Einbau des Elements in die Schale, so daß sich die ursprüngliche Calcitstruktur in Strontianit und Aragonit umwandelt. Der Einbau von Fremdionen in die Schale wird mit einem kinetisch-thermodynamischen Modell erklärt, was in guter Übereinstimmung mit den experimentellen Ergebnissen steht. Mit diesem Modell kann auch die starke Temperaturabhangigkeit des Magnesiumeinbaus gedeutet werden. Daneben wurde noch der Einfluß der verschiedenen Umweltfaktoren auf das Verhalten der Ostracoden untersucht. Für die Trennung der Ostracoden vom Sand wird ein neues Ausleseverfahren beschrieben.
description: thesis
description: DFG, SUB Göttingen
Plano Popular da Vila Autódromo. Plano de Desenvolvimento Urbano, Econômico, Social e Cultural
Creators: name: Correia, Mayã Martins
Publisher: name: Zenodo
Year: 2016

description: AMPVA, Assoc. Moradores e Pescadores da Vila Autódromo BIENENSTEIN, Regina; VAINER, Carlos; RAMOS, Aguinaldo; VAINER, Alice NESI, Amanda; SEQUEIRA JUNIOR, Antonio; CAMARA, Breno; GUTERMAN, Bruna; SARAIVA, Camila; LOBINO, Camilla; HIRT, Carla; DIMAS, Cinthia; SOUZA, Daniel Mendes Mesquita de; FREIRE, Eloisa; CHANG, Esther; OLIVEIRA, Fabrício Leal de; NIN, Felipe; SIMOES, Felipe; FIDELES, Felippe; PODZWATO, Fernanda; SANCHEZ, Fernanda; SANTOS, Fernanda Souza dos; ALEXANDRE, Francisca; MARTINS, Mayã; TANAKA, Giselle; BIENENSTEIN, Glauco; GROSSI, Grasiele; XAVIER, Guilherme; CARVALHO, Heloisa Gama de; MATELA, Igor; MELLO, Irene; ROCHA, Isabella; ZANATA, Ivan; SAMPAIO, Jackeline; CANTARINO, Julia; PEREIRA, Juliana; PERES, Juliana; BRANDENBURGER, K.; FONTAINHA, Leonardo; ROMAIN, Lilian; PEIXOTO, Luana; SOUZA, Luana; FAULHABER, Lucas; KLEYNJANS, Manon; MEDEIROS, Mariana; ARCE, Marta VARGAS, Matheus; BENTO, Mattheus; COSTA, Micaela; FURTADO, Mirella; FERRARI, Murilo; OLIVEIRA, Natália; VASCONCELLOS, Natalia; GUSMAO, Nelma; MOREIRA, Paula Cardoso; LAIBER, Paula; NOVAIS, Pedro; MONTEIRO, Poliana; CREVELANDE, Raama Bárbara; VALADAO, Regina; COSENTINO, Renato; SANTOS, Roberta; SANTOS, Rosane; AMORIM, Thiago Costa; CARVALHO, Thiara Souza; BASTOS, Tiago. Plano Popular da Vila Autódromo. Plano de desenvolvimento urbano, econômico, social e cultural, 2016.