cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uncovering the Sequential Structure of Thought
Creators: name: Anderson, John R.
name: Fincham, Jon
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Multi-voxel pattern recognition techniques combined with Hidden Markov models can be used to discover the mental states that people go through in performing a task. The combined method identifies both the mental states and how their durations vary with experimental conditions. The paper applies this method to a task where participants solve novel mathematical problems. It identifies four states in the solution of these problems: Encoding, Planning, Solving, and Respond. The duration of the planning state varies on a trial-to-trial basis with novelty of the problem. The duration of solution stage similarly varies with the amount of computation needed to produce a solution once a plan is devised. The response stage similarly varies with the complexity of the answer produced. Thus, we were able to decompose the overall problem solving time into estimates of its components and interpret what participants are doing on individual problem-solving trials.
Generalized hypergeometric series for Racah matrices in rectangular representations
Creators: name: Morozov, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: One of spectacular results in mathematical physics is the expression of Racah matrices for symmetric representations of the quantum group $SU_q(2)$ through the Askey-Wilson polynomials, associated with the $q$-hypergeometric functions ${_4ϕ_3}$. Recently it was shown that this is in fact the general property of symmetric representations, valid for arbitrary $SU_q(N)$, at least for exclusive Racah matrices $\bar S$. The natural question then is what substitutes the conventional $q$-hypergeometric polynomials when representations are more general? New advances in the theory of matrices $\bar S$, provided by the study of differential expansions of knot polynomials, suggest that these are multiple sums over Young sub-diagrams of the one, which describes the original representation of $SU_q(N)$. A less trivial fact is that the entries of the sum are not just the factorized combinations of quantum dimensions, as in the ordinary hypergeometric series, but involve non-factorized quantities, like the skew characters and their further generalizations -- as well as associated additional summations with the Littlewood-Richardson weights.
description: 8 pages
title: Cypriotness After Postcolonialism
Creators: name: Sadikoglu, Rahme
Publisher: name: Goldsmiths, University of London
Year: 2022

description: The relationships between the notion of a resurgent Cypriot identity and the recent social, political, cultural and economic factors associated with Turkish settlement in northern Cyprus have been extensively examined in the social sciences and humanities over the past four decades. However, the cultural traces of British colonialism in the present and its relation to the contemporary dynamics of Turkish Cypriot identity have not received the same level of scholarly attention. This thesis offers a conjunctural perspective of the exploration of Cypriot identity. It provides an account of Cypriotness in reference to the post-postcolonial conjuncture, that is the historical meeting point of the colonial past and the postcolonial and the colonial present. The study also considers the extent to which Cypriot identity is constructed against two distinct constitutive others, namely mainland Turks and Greek Cypriots. The research has been conducted using a mixed-method ethnography, combining auto-ethnography and sensory ethnography. The main data were generated through participant observation, semi-structured interviews and informal/conversational interviews. Using ideas from postcolonial theory (Said, 1978, 1993; Bhabha, 1984, 1994), I provide an analysis of the living of complex dynamics as they relate to the production and negotiation of cultural difference, racism, identity and identifications within a post-postcolonial society. In doing so, the thesis contributes to the current debates on identity politics in northern Cyprus, as well as contributing to discussions in postcolonial studies.
Ferramenta da Terapia Familiar: Identificação de Papéis Familiares
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Ferramenta da Terapia Familiar
Identificação de Papéis Familiares
Terapia Familiar
Enciclopédia da Conscienciologia

description: Definologia: A identificação de papéis familiares é uma ferramenta terapêutica da Terapia Familiar que visa analisar e compreender os diferentes papéis desempenhados pelos membros de uma família, suas interações e dinâmicas relacionais.
Stable-Matching Voronoi Diagrams: Combinatorial Complexity and Algorithms
Creators: name: Barequet, Gill
name: Eppstein, David
name: Goodrich, Michael T.
name: Mamano, Nil
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: I.3.5; F.2.2

description: We study algorithms and combinatorial complexity bounds for \emph{stable-matching Voronoi diagrams}, where a set, $S$, of $n$ point sites in the plane determines a stable matching between the points in $\mathbb{R}^2$ and the sites in $S$ such that (i) the points prefer sites closer to them and sites prefer points closer to them, and (ii) each site has a quota or "appetite" indicating the area of the set of points that can be matched to it. Thus, a stable-matching Voronoi diagram is a solution to the well-known post office problem with the added (realistic) constraint that each post office has a limit on the size of its jurisdiction. Previous work on the stable-matching Voronoi diagram provided existence and uniqueness proofs, but did not analyze its combinatorial or algorithmic complexity. In this paper, we show that a stable-matching Voronoi diagram of $n$ point sites has $O(n^{2+\varepsilon})$ faces and edges, for any $\varepsilon>0$, and show that this bound is almost tight by giving a family of diagrams with $Θ(n^2)$ faces and edges. We also provide a discrete algorithm for constructing it in $O(n^3\log n+n^2f(n))$ time in the real-RAM model of computation, where $f(n)$ is the runtime of a geometric primitive (which we define) that can be approximated numerically, but cannot, in general, be performed exactly in an algebraic model of computation. We show, however, how to compute the geometric primitive exactly for polygonal convex distance functions.
description: 34 pages, 21 figures, This is a full version of an extended abstract presented in ICALP'18. To appear in JoCG. v2: upgraded version for JoCG
An Investigation of the Ranges of Validity of Asteroid Thermal Models for Near-Earth Asteroid Observations
Creators: name: Mommert, Michael
name: Jedicke, Robert
name: Trilling, David E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The majority of known asteroid diameters are derived from thermal-infrared observations. Diameters are derived using asteroid thermal models that approximate their surface temperature distributions and compare the measured thermal-infrared flux with model-dependent predictions. The most commonly used thermal model is the Near-Earth Asteroid Thermal Model (NEATM), which is usually perceived as superior to other models like the Fast-Rotating Model (FRM). We investigate the applicability of the NEATM and the FRM to thermal-infrared observations of Near-Earth Objects using synthetic asteroids with properties based on the real Near-Earth Asteroid (NEA) population. We find the NEATM to provide more accurate diameters and albedos than the FRM in most cases, with a few exceptions. The modeling results are barely affected by the physical properties of the objects, but we find a large impact of the solar phase angle on the modeling results. We conclude that the NEATM provides statistically more robust diameter estimates for NEAs observed at solar phase angles less than ~65°, while the FRM provides more robust diameter estimates for solar phase angles greater than ~65°. We estimate that <5% of all NEA diameters and albedos derived up to date are affected by systematic effects that are of the same order of magnitude as the typical thermal model uncertainties. We provide statistical correction functions for diameters and albedos derived using the NEATM and FRM as a function of solar phase angle.
description: 25 pages, 8 figures, accepted for publication in AJ
Uncovering the neural mechanisms underlying learning from tests.
Creators: name: Xiaonan L. Liu
name: Peipeng  Liang
name: Kuncheng  Li
name: Reder, Lynne
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: People learn better when re-study opportunities are replaced with tests. While researchers have begun to speculate on why testing is superior to study, few studies have directly examined the neural underpinnings of this effect. In this fMRI study, participants engaged in a study phase to learn arbitrary word pairs, followed by a cued recall test (recall second half of pair when cued with first word of pair), re-study of each pair, and finally another cycle of cued recall tests. Brain activation patterns during the first test (recall) of the studied pairs predicts performance on the second test. Importantly, while subsequent memory analyses of encoding trials also predict later accuracy, the brain regions involved in predicting later memory success are more extensive for activity during retrieval (testing) than during encoding (study). Those additional regions that predict subsequent memory based on their activation at test but not at encoding may be key to understanding the basis of the testing effect.
Theoretical analysis of super-Bloch oscillations
Creators: name: Kudo, K.
name: Monteiro, T. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Several recent studies have investigated the dynamics of cold atoms in optical lattices subject to AC forcing; the theoretically predicted renormalization of the tunneling amplitudes has been verified experimentally. Recent observations include global motion of the atom cloud, such as giant "Super-Bloch Oscillations" (SBOs). We show that, in order to understand unexplained features of SBOs, in addition to the renormalization of the tunneling, a new and important phase correction must be included. For Fermionic systems with strong attractive interactions, one may engineer different types of collisions and recollisions between bound-pairs and unpaired atoms.
description: 6 pages, 2 figures
Short-Packet Two-Way Amplify-and-Forward Relaying
Creators: name: Gu, Yifan
name: Chen, He
name: Li, Yonghui
name: Song, Lingyang
name: Vucetic, Branka
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This letter investigates an amplify-and-forward two-way relay network (TWRN) for short-packet communications. We consider a classical three-node TWRN consisting of two sources and one relay. Both two time slots (2TS) scheme and three time slots (3TS) scheme are studied under the finite blocklength regime. We derive approximate closed-form expressions of sum-block error rate (BLER) for both schemes. Simple asymptotic expressions for sum-BLER at high signal-to-noise ratio (SNR) are also derived. Based on the asymptotic expressions, we analytically compare the sum-BLER performance of 2TS and 3TS schemes, and attain an expression of critical blocklength, which can determine the performance superiority of 2TS and 3TS in terms of sum-BLER. Extensive simulations are provided to validate our theoretical analysis. Our results discover that 3TS scheme is more suitable for a system with lower relay transmission power, higher differences between the average SNR of both links and relatively lower requirements on data rate and latency.
description: Accepted to appear in IEEE Signal Processing Letters
A small-world of weak ties provides optimal global integration of self-similar modules in functional brain networks
Creators: name: Gallos, Lazaros K.
name: Makse, Hernan A.
name: Sigman, Mariano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The human brain is organized in functional modules. Such an organization presents a basic conundrum: modules ought to be sufficiently independent to guarantee functional specialization and sufficiently connected to bind multiple processors for efficient information transfer. It is commonly accepted that small-world architecture of short lengths and large local clustering may solve this problem. However, there is intrinsic tension between shortcuts generating small-worlds and the persistence of modularity; a global property unrelated to local clustering. Here, we present a possible solution to this puzzle. We first show that a modified percolation theory can define a set of hierarchically organized modules made of strong links in functional brain networks. These modules are "large-world" self-similar structures and, therefore, are far from being small-world. However, incorporating weaker ties to the network converts it into a small-world preserving an underlying backbone of well-defined modules. Remarkably, weak ties are precisely organized as predicted by theory maximizing information transfer with minimal wiring cost. This trade-off architecture is reminiscent of the "strength of weak ties" crucial concept of social networks. Such a design suggests a natural solution to the paradox of efficient information flow in the highly modular structure of the brain.
description: 37 pages, 11 figures
Unconscious Insights
Creators: name: Siegler, Robert
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: From early in the history of psychology, theorists have argued about whether insights are initially unconscious or whether they are conscious from the start. Empirically identifying unconscious insights has proven difficult, however: How can we tell if people have had an insight if they do not tell us they have had one? Fortunately, although obtaining evidence of unconscious insights is difficult, it is not impossible. The present article describes an experiment in which evidence of unconscious insights was obtained. Almost 90% of second graders generated an arithmetic insight at an unconscious level before they were able to report it. Within five trials of the unconscious discovery, 80% of the children made the discovery consciously, as indicated by their verbal reports. Thus, the initial failure to report the insight could not be attributed to the children lacking the verbal facility to describe it. The results indicate that at least in some cases, insights arise first at an unconscious level, and only later become conscious. Rising activation of the new strategy may be the mechanism that leads children to become conscious of using it.
Calculation of the Voronoi boundary for lens-shaped particles and spherocylinders
Creators: name: Portal, Louis
name: Danisch, Maximilien
name: Baule, Adrian
name: Mari, Romain
name: Makse, Hernan A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have recently developed a mean-field theory to estimate the packing fraction of non-spherical particles [A. Baule et al., Nature Commun. (2013)]. The central quantity in this framework is the Voronoi excluded volume, which generalizes the standard hard-core excluded volume appearing in Onsager's theory. The Voronoi excluded volume is defined from an exclusion condition for the Voronoi boundary between two particles, which is usually not tractable analytically. Here, we show how the technical difficulties in calculating the Voronoi boundary can be overcome for lens-shaped particles and spherocylinders, two standard prolate and oblate shapes with rotational symmetry. By decomposing these shapes into unions and intersections of spheres analytical expressions can be obtained.
description: 19 pages, 8 figures
Longitudinal structure function from logarithmic slopes of $F_{2}$ at low $x$
Creators: name: Boroun, G. R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using Laplace transform techniques, I calculate the longitudinal structure function $F_{L}(x,Q^{2})$ from the scaling violations of the proton structure function $F_{2}(x,Q^{2})$, and make a critical study of this relationship between the structure functions at leading order (LO) up to next-to-next-to leading order (NNLO) analysis at small $x$. Furthermore, I consider heavy quark contributions to the relation between the structure functions, which leads to compact formula for $N_{f}=3+\mathrm{Heavy}$. The nonlinear corrections to the longitudinal structure function at LO up to NNLO analysis are shown in the $N_{f}=4$ (light quark flavor) based on the nonlinear corrections at $R=2$ and $R=4 GeV^{-1}$. The results are compared to experimental data of the longitudinal proton structure function $F_{L}$ in the range of $6.5 \leq Q^{2} \leq 800 GeV^{2}$.
The spin-orbit mechanism of electron pairing in quantum wires
Creators: name: Gindikin, Yasha
name: Sablikov, Vladimir A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We solve a two-body problem for electrons in a one-dimensional system to show that two-electron bound states can arise as a result of the image-potential-induced spin-orbit interaction (iSOI). The iSOI contributes an attractive component to the electron-electron interaction Hamiltonian that competes with the Coulomb repulsion and overcomes it under certain conditions. We find that there exist two distinct types of two-electron bound states, depending on the type of the motion that forms the iSOI: the relative motion or the motion of the electron pair as a whole. The binding energy lies in the meV range for realistic material parameters and is tunable by the gate potential.
description: 4 pages, 2 figures
Fertilization in Agroforestry Systems (PA) - Fertilización en sistemas agroforestales (PA)
Creators: name: Mosquera-Losada MR
name: Ferreiro-Domínguez N
name: Rodríguez-Rigueiro FJ
name: Santiago-Freijanes JJ
name: Rigueiro-Rodríguez A
Publisher: name: Zenodo
Year: 2019
Subjects: pH
Soil
inorganic
Suelo
inorgánica

description: La fertilización es una de las prácticas más importantes que un agricultor debe llevar a cabo en su granja. La fertilización se puede realizar con abonos orgánicos o inorgánicos. Los experimentos realizados en Galicia en sistemas silvopastorales mostraron un comportamiento diferente de la fertilización inorgánica y de la adición de lodos de aguas residuales en la productividad y la biodiversidad relacionada con la acidez del suelo. Los experimentos consisten en la aplicación de lodos de depuradora en suelos neutros (pH del agua cerca de 7) y muy ácidos (pH del agua de alrededor de 4.5) y compararlos con el uso de fertilizantes minerales y la no fertilización en los sistemas de silvopastoreo, ya que generalmente los pastos se fertilizan pero las áreas reforestadas establecidas en antiguas tierras de cultivo / áreas de praderas no se fertilizan en absoluto. En suelos con un pH en agua cercano a 7, la fertilización mineral causó un aumento significativo de la producción de pasto en detrimento del crecimiento del árbol.
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 559
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 559, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 559, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Stellar Stream and Halo Structure in the Andromeda Galaxy From a Subaru/Hyper Suprime-Cam Survey
Creators: name: Komiyama, Yutaka
name: Chiba, Masashi
name: Tanaka, Mikito
name: Tanaka, Masayuki
name: Kirihara, Takanobu
name: Miki, Yohei
name: Mori, Masao
name: Lupton, Robert H.
name: Guhathakurta, Puragra
name: Kalirai, Jason S.
name: Gilbert, Karoline
name: Kirby, Evan
name: Lee, Myun Gyoon
name: Jang, In Sung
name: Sharma, Sanjib
name: Hayashi, Kohei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present wide and deep photometry of the northwest part of the halo of the Andromeda galaxy (M31) using Hyper Suprime-Cam on the Subaru Telescope. The survey covers 9.2 deg$^{2}$ field in the $g$, $i$, and $NB515$ bands and shows a clear red giant branch (RGB) of M31's halo stars and a pronounced red clump (RC) feature. The spatial distribution of RC stars shows a prominent stream feature, the North Western (NW) Stream, and a diffuse substructure in the south part of our survey field. We estimate the distances based on the RC method and obtain $(m-M)$ = 24.63$\pm 0.191$(random)$\pm0.057$(systematic) and 24.29$\pm 0.211$(random)$\pm0.057$(systematic) mag for the NW stream and diffuse substructure, respectively, implying that the NW Stream is located behind M31, whereas the diffuse substructure is located in front. We also estimate line-of-sight distances along the NW Stream and find that the south part of the stream is $\sim$20 kpc closer to us relative to the north part. The distance to the NW Stream inferred from the isochrone fitting to the color-magnitude diagram favors the RC-based distance, but the TRGB-based distance estimated for $NB515$-selected RGB stars does not agree with it. The surface number density distribution of RC stars across the NW Stream is found to be approximately Gaussian with a FWHM of $\sim$25 arcmin (5.7 kpc), with a slight skew to the south-west side. That along the NW Stream shows a complicated structure including variations in number density and a significant gap in the stream.
description: 24 pages, 18 figures, accepted for publication in ApJ
Characterising the interior structures and atmospheres of transiting super-Earths and sub-Neptunes
Creators: name: Acuña, Lorena
name: Deleuil, Magali
name: Mousis, Olivier
name: Hoyer, Sergio
name: Lopez, Theo
name: Marcq, Emmanuel
name: Morel, Thierry
name: Santerne, Alexandre
name: Gandolfi, Davide
name: Armstrong, David J.
Publisher: name: Zenodo
Year: 2021
Subjects: Exoplanets
Planetary interiors
Planetary atmospheres
Numerical

description: The modelling of the internal structures of super-Earths and sub-Neptunes gives a valuable insight into their formation history and possible atmospheres. We present a planet model where the interior is coupled with the atmosphere within a Bayesian retrieval scheme. We take into account water in all its possible phases, including steam and supercritical phases, which is necessary for systems with a wide range of stellar irradiations. Our interior-atmosphere model calculates the compositional and atmospheric parameters, such as Fe and water content, surface pressures, scale heights and albedos. We analyse the highly-irradiated planet TOI-220 b, and the multiplanetary systems K2-138 and TRAPPIST-1. The very low density of TOI-220 b can only be explained with an extended atmosphere, which could be dominated by water or H/He as well. For TRAPPIST-1 and K2-138, we derive with their individual compositions a global increasing trend on the water content with increasing distance from the star in the inner region of the systems, while the planets in the outer region present a constant water mass fraction. This trend reveals the possible effects of migration, formation location and atmospheric mass loss during their formation history.
description: {"references": ["Acu\u00f1a et al. (2021)", "Hoyer et al. (2021)"]}
Pressure-induced superconductivity in elemental ytterbium metal
Creators: name: Song, Jing
name: Schilling, James S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Ytterbium (Yb) metal is divalent and nonmagnetic but would be expected under sufficient pressure to become trivalent and magnetic. We have carried out electrical resistivity and ac magnetic susceptibility measurements on Yb to pressures as high as 179 GPa over the temperature range 1.4 - 295 K. No evidence for magnetic order is observed. However, above 86 GPa Yb is found to become superconducting near 1.4 K with a transition temperature that increases monotonically with pressure to approximately 4.6 K at 179 GPa. Yb thus becomes the 54th known elemental superconductor.
description: 3 figures
Types of Stressors That Increase Susceptibility to the Common Cold in Healthy Adults
Creators: name: Cohen, Sheldon
name: Frank, Ellen
name: Doyle, William J
name: Skoner, David P
name: Rabin, Bruce
name: Gwaltney, Jack M
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Two-hundred seventy-six volunteers completed a life stressor interview and psychological questionnaires and provided blood and urine samples. They were then inoculated with common cold viruses and monitored for the onset of disease. Although severe acute stressful life events (less than 1 month long) were not associated with developing colds, severe chronic stressors (1 month or longer) were associated with a substantial increase in risk of disease. This relation was attributable primarily to under- or unemployment and to enduring interpersonal difficulties with family or friends. The association between chronic stressors and susceptibility to colds could not be fully explained by differences among stressed and nonstressed persons in social network characteristics, personality, health practices, or prechallenge endocrine or immune measures.
Optimal Design and Control of 4-IWD Electric Vehicles based on a 14-DOF Vehicle Model
Creators: name: Yu, Huilong
name: Cheli, Federico
name: Castelli-Dezza, Francesco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A 4-independent wheel driving (4-IWD) electric vehicle has distinctive advantages with both enhanced dynamic and energy efficiency performances since this configuration provides more flexibilities from both the design and control aspects. However, it is difficult to achieve the optimal performances of a 4-IWD electric vehicle with conventional design and control approaches. This work is dedicated to investigating the vehicular optimal design and control approaches, with a 4-IWD electric race car aiming at minimizing the lap time on a given circuit as a case study. A 14-DOF vehicle model that can fully evaluate the influences of the unsprung mass is developed based on Lagrangian dynamics. The 14-DOF vehicle model implemented with the reprogrammed Magic Formula tire model and a time-efficient suspension model supports metric operations and parallel computing, which can dramatically improve the computational efficiency. The optimal design and control problems with design parameters of the motor, transmission, mass center, anti-roll bar and the suspension of the race car are successively formulated. The formulated problems are subsequently solved by directly transcribing the original problems into large scale nonlinear optimization problems based on trapezoidal approach. The influences of the mounting positions of the propulsion system, the mass and inertia of the unsprung masses, the anti-roll bars and suspensions on the lap time are analyzed and compared quantitatively. Some interesting findings that are different from the `already known facts' are presented.
title: THE HYDROCARBON RING C3H2 IS UBIQUITOUS IN THE GALAXY
Creators: name: MATTHEWS, HE
name: Irvine, William M.
Publisher: name: University of Massachusetts Amherst
Year: 1985
Subjects: subject: Astrophysics and Astronomy

description: The published version is located at http://adsabs.harvard.edu/doi/10.1086/184567
description: The discovery of a strong microwave (1.6 cm-wavelength) spectral line, the carrier of which is common and widespread throughout the Galaxy is reported. A survey of a large number of sources shows that the line appears in emission in cold dust clouds, in absorption in the direction of the Galactic center, and exhibits complex profiles toward H II regions. Toward Cas A and distant H II regions, intervening 'spiral arm' clouds produce absorption. For almost all cases, the absorption features show a striking 1:1 radial velocity correspondence with those seen, e.g., in H2CO spectra of the same objects. The data indicate that the line arises between low-lying energy states of a rather polar molecule. Recent work by Thaddeus, Vrtilek, and Gottlieb (1985) incorporating the present data, shows that the line in question is the 1(10)-1(01) transition of the small hydrocarbon ring C3H2.
Understanding the olive microbiome of susceptible and resistant cultivars for sustainable biocontrol
Creators: name: Baptista Paula
name: Cameirão Cristina
name: Giampetruzzi Annalisa
name: Morelli Massimiliano
name: Abou Kubaa Raied
name: Altamura Giuseppe
name: D'Attoma Giusy
name: Pereira JA
name: T, Lino Neto
name: Angelo, Sisto
name: P, De Bellis
name: Saldarelli Pasquale
Publisher: name: Zenodo
Year: 2019

description: Abstract: Olive quick decline syndrome (OQDS) is a devastating olive disease, which emerged few years ago in the region of Apulia (southern Italy) as a result of the bacterial infections caused by Xylella fastidiosa subsp. pauca. Bacterial infections were consistently associated with severe desiccations on the local cvs Cellina di Nardò and Ogliarola salentina, whereas mild symptoms were found in the infected trees of the cvs Leccino and FS17, indicating that these cvs may harbour traits of resistance. Investigations on the olive microbiome of OQDS-resistant and susceptible cultivars were undertaken to identify potential protecting endophytes for a sustainable strategy of biocontrol. In this study, bacterial and fungal communities of the xylem of infected trees of the cvs FS17 and Kalamata, respectively symptomless and highly symptomatic, were analysed by barcode (16 S rRNA V4 and ITS1-spanning amplicons) and whole shotgun (WSS) sequencing. Overall, the core microbiome was dominated by fungi, accounting 99.8% and 88.4% of the total reads by barcode and WSS sequencing, respectively, while Proteobacteria and Ascomycota are the most represented phyla with both techniques. This fungi/bacteria ratio was maintained in all trees of the cv FS17 while it was inverted in the susceptible cv Kalamata, in which Xylella colonised the majority of the ecological niche in the heavily infected plants. Bacteria were isolated from the sapwood of olive trees of the cv Kalamata and FS17 and plate assays were performed to evaluate the antagonistic activity of these olive endophytes against X. fastidiosa. Moreover, bacterial communities of selected trees of the cv FS17 were isolated, purified and co-inoculated with X. fastidiosa into potted olive plants of the cv Cellina di Nardò for evaluating potential effects on the evolution and progression of Xylella infections in this susceptible cultivar. Data on antagonistic activity of isolated endophytes and the progress of Xylella infections and/or symptom appearance in these microbiome–Xf co-inoculated plants will be presented
The Hilbert scheme of hyperelliptic Jacobians and moduli of Picard sheaves
Creators: name: Ricolfi, Andrea T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $C$ be a hyperelliptic curve embedded in its Jacobian $J$ via an Abel-Jacobi map. We compute the scheme structure of the Hilbert scheme component of $\textrm{Hilb}_J$ containing the Abel-Jacobi curve as a point. We relate the result to the ramification (and to the fibres) of the Torelli morphism $\mathcal M_g\rightarrow \mathcal A_g$ along the hyperelliptic locus. As an application, we determine the scheme structure of the moduli space of Picard sheaves (introduced by Mukai) on a hyperelliptic Jacobian.
description: Improved the exposition according to the referees' suggestions. To appear in Algebra and Number Theory
Vlasov equation for long-range interactions on a lattice
Creators: name: Bachelard, Romain
name: Staniscia, F.
name: Dauxois, Thierry
name: De Ninno, Giovanni
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We show that, in the continuum limit, the dynamics of Hamiltonian systems defined on a lattice with long-range couplings is well described by the Vlasov equation. This equation can be linearized around the homogeneous state and a dispersion relation, that depends explicitly on the Fourier modes of the lattice, can be derived. This allows one to compute the stability thresholds of the homogeneous state, which turn out to depend on the mode number. When this state is unstable, the growth rates are also function of the mode number. Explicit calculations are performed for the $α$-HMF model with $0 \leq α<1$, for which the zero mean-field mode is always found to dominate the exponential growth. The theoretical predictions are successfully compared with numerical simulations performed on a finite lattice.
Revista GeoSertões, vol. 7, n. 14, jul./dez. 2022
Creators: name: Santiago Andrade Vasconcelos
Publisher: name: Santiago Andrade Vasconcelos
Year: 2022

description: A Revista GeoSertões é um periódico eletrônico de publicação semestral da Unidade Acadêmica de Geografia (Unageo), Centro de Formação de Professores (CFP), Universidade Federal de Campina Grande (UFCG), Campus Cajazeiras.

Empenhada em propiciar a difusão do conhecimento, a Revista GeoSertões oferece acesso livre ao seu conteúdo, objetivando oferecer contribuições que oportunizem avanços teóricos e metodológicos para a Ciência Geográfica e áreas afins, além de abrir espaço para pesquisas que revelem a realidade empírica em diferentes escalas e contextos.
On the Earth's tidal perturbations for the LARES satellite
Creators: name: Gurzadyan, V. G.
name: Ciufolini, I.
name: Khachatryan, H. G.
name: Mirzoyan, S.
name: Paolozzi, A.
name: Sindoni, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Frame dragging, one of the outstanding phenomena predicted by General Relativity, is efficiently studied by means of the laser-ranged satellites LARES, LAGEOS and LAGEOS 2. The accurate analysis of the orbital perturbations of Earth's solid and ocean tides has been relevant for increasing the accuracy in the test of frame-dragging using these three satellites. The Earth's tidal perturbations acting on the LARES satellite are obtained for the 110 significant modes of corresponding Doodson number and are exhibited to enable the comparison to those of the LAGEOS and LAGEOS-2 satellites. For LARES we represent 29 perturbation modes for l=2,3,4 for ocean tides.
description: 14 pages, 9 figures, to appear in Eur Phys J Plus (subm. Sept 20, 2017)
Type of social support matters for prediction of posttraumatic growth among cancer survivors.
Creators: name: Schroevers, Maya J
name: Helgeson, Vicki
name: Sanderman, Robbert
name: Adelita V  Ranchor
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: OBJECTIVE: Previous research in people with cancer on social support and psychological well-being has mainly focused on the short-term negative outcomes of adjustment. Little is known about the role of social support in the experience of positive outcomes in the long term. This study examined the relation between emotional support in the period following diagnosis and the experience of positive consequences of the illness, so called posttraumatic growth, at 8 years after diagnosis. We focused on three distinct types of emotional support: perceived availability, actual received, and dissatisfaction with received emotional support. METHODS: This longitudinal study was conducted in a sample of 206 long-term cancer survivors. Social support was assessed with the Social Support List (SSL) at 3 months and 8 years after diagnosis. Positive consequences of the illness were assessed with the Silver Lining Questionnaire (SLQ) at 8 years after diagnosis. Correlation- and regression analyses were used to examine the associations of initial levels of emotional support with the long-term report of posttraumatic growth. RESULTS: Regression analyses showed that more received emotional support at 3 months after diagnosis significantly predicted a greater experience of positive consequences of the illness at 8 years after diagnosis. This association remained significant, when controlling for concurrent levels of emotional support at 8 years after diagnosis. CONCLUSIONS: The findings suggest that getting support from family and friends, characterized by reassuring, comforting, and problem-solving, in the period following diagnosis is an important resource that may help cancer survivors to find positive meaning in the cancer experience.
Spectroscopic Observations of a Current Sheet in a Solar Flare
Creators: name: Li, Y.
name: Xue, J. C.
name: Ding, M. D.
name: Cheng, X.
name: Su, Y.
name: Feng, L.
name: Hong, J.
name: Li, H.
name: Gan, W. Q.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Current sheet is believed to be the region of energy dissipation via magnetic reconnection in solar flares. However, its properties, for example, the dynamic process, have not been fully understood. Here we report a current sheet in a solar flare (SOL2017-09-10T16:06) that was clearly observed by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory as well as the EUV Imaging Spectrometer on Hinode. The high-resolution imaging and spectroscopic observations show that the current sheet is mainly visible in high temperature (>10 MK) passbands, particularly in the Fe XXIV 192.03 line with a formation temperature of ~18 MK. The hot Fe XXIV 192.03 line exhibits very large nonthermal velocities up to 200 km/s in the current sheet, suggesting that turbulent motions exist there. The largest turbulent velocity occurs at the edge of the current sheet, with some offset with the strongest line intensity. At the central part of the current sheet, the turbulent velocity is negatively correlated with the line intensity. From the line emission and turbulent features we obtain a thickness in the range of 7--11 Mm for the current sheet. These results suggest that the current sheet has internal fine and dynamic structures that may help the magnetic reconnection within it proceeds efficiently.
description: ApJL accepted. Comments are welcome
A note on Berestycki-Cazenave's classical instability result for nonlinear Schrödinger equations
Creators: name: Coz, Stefan Le
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55 (Primary), 35B35, 35A15 (Secondary)

description: In this note we give an alternative, shorter proof of the classical result of Berestycki and Cazenave on the instability by blow-up for the standing waves of some nonlinear Schrödinger equations.
Constraint on the quadrupole moment of super-massive black hole candidates from the estimate of the mean radiative efficiency of AGN
Creators: name: Bambi, Cosimo
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The super-massive objects at the center of many galaxies are commonly thought to be black holes. In 4-dimensional general relativity, a black hole is completely specified by its mass $M$ and by its spin angular momentum $J$. All the higher multipole moments of the gravitational field depend in a very specific way on these two parameters. For instance, the mass quadrupole moment is $Q = - J^2/M$. If we can estimate $M$, $J$, and $Q$ for the super-massive objects in galactic nuclei, we over-constrain the theory and we can test the black hole hypothesis. While there are many works studying how this can be done with future observations, in this paper a constraint on the quadrupole moment of these objects is obtained by using the current estimate of the mean radiative efficiency of AGN. In terms of the anomalous quadrupole moment $q$, the bound is $-2.01 < q < 0.14$.
description: 4 pages, 2 figures. v2: refereed version
Habitable planets around the star Gl 581?
Creators: name: Selsis, Franck
name: Kasting, J. F.
name: Levrard, B.
name: Paillet, J.
name: Ribas, I.
name: Delfosse, X.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Radial velocity surveys are now able to detect terrestrial planets at habitable distance from M-type stars. Recently, two planets with minimum masses below 10 Earth masses were reported in a triple system around the M-type star Gliese 581. Using results from atmospheric models and constraints from the evolution of Venus and Mars, we assess the habitability of planets Gl 581c and Gl 581d and we discuss the uncertainties affecting the habitable zone (HZ) boundaries determination. We provide simplified formulae to estimate the HZ limits that may be used to evaluate the astrobiological potential of terrestrial exoplanets that will hopefully be discovered in the near future. Planets Gl 581c and 'd' are near, but outside, what can be considered as the conservative HZ. Planet 'c' receives 30% more energy from its star than Venus from the Sun, with an increased radiative forcing caused by the spectral energy distribution of Gl 581. Its habitability cannot however be positively ruled out by theoretical models due to uncertainties affecting cloud properties. Irradiation conditions of planet 'd' are comparable with those of early Mars. Thanks to the warming effect of CO2-ice clouds planet 'd' might be a better candidate for the first exoplanet known to be potentially habitable. A mixture of various greenhouse gases could also maintain habitable conditions on this planet.
description: Astronomy and Astrophysics (2007) accepted for publication
Projective geometry of Sasaki-Einstein structures and their compactification
Creators: name: Gover, A. Rod
name: Neusser, Katharina
name: Willse, Travis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A20, 53B10, 53C25, 53C29 (Primary), 35Q76, 53A30, 53A40, 53C55 (Secondary)

description: We show that the standard definitions of Sasaki structures have elegant and simplifying interpretations in terms of projective differential geometry. For Sasaki-Einstein structures we use projective geometry to provide a resolution of such structures into geometrically less rigid components; the latter elemental components are separately, complex, orthogonal, and symplectic holonomy reductions of the canonical projective tractor/Cartan connection. This leads to a characterisation of Sasaki-Einstein structures as projective structures with certain unitary holonomy reductions. As an immediate application, this is used to describe the projective compactification of indefinite (suitably) complete non-compact Sasaki-Einstein structures and to prove that the boundary at infinity is a Fefferman conformal manifold that thus fibres over a nondegenerate CR manifold (of hypersurface type). We prove that this CR manifold coincides with the boundary at infinity for the c-projective compactification of the Kähler-Einstein manifold that arises, in the usual way, as a leaf space for the defining Killing field of the given Sasaki-Einstein manifold. A procedure for constructing examples is given. The discussion of symplectic holonomy reductions of projective structures leads us moreover to a new and simplifying approach to contact projective geometry. This is of independent interest and is treated in some detail.
description: 55 pages; minor modifications: references updated, citations added and typos corrected. To appear in Dissertationes Mathematicae
Two types of TMS-induced movement variability after stimulation of the primary motor cortex.
Creators: name: Verstynen, Timothy
name: Konkle, Talia
name: Ivry, Richard B.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Using transcranial magnetic stimulation, we studied the role of the primary motor cortex (M1) in repetitive movements, examining whether the functional contribution of this region is associated with controlling response timing, response implementation, or both. In two experiments, participants performed a rhythmic tapping task, attempting to produce isochronous intervals (range of 350-550 ms) while stimulation was applied over M1 or a control site. M1 stimulation was associated with increased variability of the inter-tap intervals (ITI), and, by manipulating stimulation intensity, we identified two distinct changes in performance: a generalized increase in ITI variability and a delay in the subsequent response when the pulse fell within a restricted window prior to movement onset. Using a series of simulations, we demonstrate that the general increase in variability and the temporally specific delay reflect disruption of response implementation processes rather than an increase in noise associated with response timing.