cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-Markovian transients in transport across chiral quantum wires using space-time non-equilibrium Green functions
Creators: name: Babu, Nikhil Danny
name: Setlur, Girish S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a system of two non-interacting quantum wires with fermions of opposite chirality with a point contact junction at the origin across which tunneling can take place when an arbitrary time-dependent bias between the wires is applied. We obtain the exact dynamical non-equilibrium Green function by solving Dyson's equation analytically. Both the space-time dependent two and four-point functions are written down in a closed form in terms of simple functions of position and time. This allows us to obtain, among other things, the I-V characteristics for an arbitrary time-dependent bias. Our method is a superior alternative to competing approaches to non-equilibrium as we are able to account for transient phenomena as well as the steady state. We study the approach to steady state by computing the time evolution of the equal-time one-particle Green function. Our method can be easily applied to the problem of a double barrier contact whose internal properties can be adjusted to induce resonant tunneling leading to a conductance maximum. We then consider the case of a finite bandwidth in the point contact and calculate the non-equilibrium transport properties which exhibit non-Markovian behaviour. When a subsequently constant bias is suddenly switched on, the current shows a transient build up before approaching its steady state value in contrast to the infinite bandwidth case. This transient property is consistent with numerical simulations of lattice systems using time-dependent DMRG (tDMRG) suggesting thereby that this transient build up is merely due to the presence of a short distance cutoff in the problem description and not on the other details.
description: 22 pages, 6 figures
Exponential bulges and antitruncated disks in lenticular galaxies
Creators: name: Sil'chenko, Olga K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The presence of exponential bulges and anti-truncated disks has been noticed in many lenticular galaxies. In fact, it could be expected because the very formation of S0 galaxies includes various processes of secular evolution. We discuss how to distinguish between a pseudobulge and an anti-truncated disk, and also what particular mechanisms may be responsible for the formation of anti-truncated disks. Some bright examples of lenticular galaxies with the multi-tiers exponential stellar structures are presented, among them -- two central group giant S0s seen face-on and perfectly axisymmetric.
description: 6 pages, 3 figures, to be published in Proceedings of IAU Symposium 254 "The Galaxy Disk in Cosmological Context", Copenhagen, 9-13 June, 2008
Double Horizon Limit, AdS Geometry and Entropy Function
Creators: name: Arfaei, H.
name: Fareghbal, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We start from a generic metric which describes four dimensional stationary black holes in an arbitrary theory of gravity and show that the AdS_2 part of the near horizon geometry is a consequence of the double-horizon limit and finiteness . We also show that the field configurations of the near horizon are determined if the same conditions are applied to the equations of motion. This is done by showing that in the double-horizon limit field equations at the horizon decouple from the bulk of the space. Solving these equations gives the near horizon field configurations. It is shown that these decoupled equations can be obtained from an action derived from the original action by applying the double-horizon condition. Our results agree with the entropy function method.
description: 19 pages- minor correction - published version
Weighted $\sin\left(3ϕ_h -ϕ_S\right)$ asymmetry from pretzelosity in SIDIS at electron ion colliders
Creators: name: xue, Shi-Chen
name: Wang, Xiaoyu
name: Li, De-Min
name: Lu, Zhun
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the transverse momentum weighted azimuthal asymmetry with a $\sin\left(3ϕ_h -ϕ_S\right)$ modulation in electroproduction of charged pion production off the transversely polarized proton. The asymmetry is contributed by the product of the second transverse-moment of the pretzelosity distribution function and the first transverse-moment of the Collins function. Using the extracted result for the proton pretzelosity and the available parametrization for the pion Collins function, we numerically predict the $P_{hT}^3$-weighted $\sin\left(3ϕ_h -ϕ_S\right)$ asymmetry for charged pion production at electron ion colliders (EICs). It is found that the weighted asymmetry is around 2 percent in the kinematics region of EICs. Our results show that the planned high luminosity electron ion colliders could be feasible to access pretzelosity in the near future.
description: 8 page, 2 figures
An asymptotic result for Brownian polymers
Creators: name: Mountford, Thomas
name: Tarrès, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a model of the shape of a growing polymer introduced by Durrett and Rogers (Probab. Theory Related Fields 92 (1992) 337--349). We prove their conjecture about the asymptotic behavior of the underlying continuous process $X_t$ (corresponding to the location of the end of the polymer at time $t$) for a particular type of repelling interaction function without compact support.
description: Published in at http://dx.doi.org/10.1214/07-AIHP113 the Annales de l'Institut Henri Poincar\'e - Probabilit\'es et Statistiques (http://www.imstat.org/aihp/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Supplementary figures from Multi-scale modelling reveals that early super-spreader events are a likely contributor to novel variant predominance
Creators: name: Goyal, Ashish
name: Reeves, Daniel B.
name: Schiffer, Joshua T.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Supplementary figures 1 and 2
Three-dimensional magnetic reconnection in astrophysical plasmas
Creators: name: Li, Ting
name: Priest, Eric
name: Guo, Ruilong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Magnetic reconnection is a fundamental process in a laboratory, magnetospheric, solar and astrophysical plasma, whereby magnetic energy is converted into heat, bulk kinetic energy and fast particle energy. Its nature in two dimensions is much better understood than in three dimensions (3D), where its character is completely different and has many diverse aspects that are currently being explored. Here we focus on the magnetohydrodynamics of 3D reconnection in the plasma environment of the solar system, especially solar flares. The theory of reconnection at null points, separators and quasi-separators is described, together with accounts of numerical simulations and observations of these three types of reconnection. The distinction between separator and quasi-separator reconnection is a theoretical one that is unimportant for the observations of energy release. A new paradigm for solar flares, in which 3D reconnection plays a central role, is proposed.
description: 37 pages, 29 figures, accepted for publication in Proceedings of The Royal Society A
Una tavola poco nota del Quattrocento bolognese
Creators: name: Mosso, Valerio
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: Bologna; San Luca; pittore bolognese; XV secolo;

description: Nel santuario bolognese della Madonna di San Luca si conserva una tavola quattrocentesca poco studiata, raffigurante la Madonna in trono col Bambino tra i santi Tommaso d’Aquino, Domenico, Luca, Mattia, Pietro Martire e Vincenzo Ferrer. Dovrebbe trattarsi di un paliotto la cui sede originaria, come suggerito dalla scelta particolare dei santi raffigurati e da alcune notizie storiche, fu verosimilmente la chiesa di San Mattia.
La tradizione locale indica l’autore del dipinto in Orazio di Jacopo, ma tale attribuzione andrà scartata  definitivamente per ragioni stilistiche e cronologiche. Bisognerà pensare piuttosto ad un anonimo pittore locale attivo all’inizio del settimo decennio del secolo; una personalità formatasi nel solco della tradizione tardogotica di Giovanni da Modena, ma successivamente attratta dalle novità che interessarono la ‘Felsina pittrice’ dopo la metà del Quattrocento e in particolar modo dagli esiti di Giovanni Francesco da Rimini.
description: INTRECCI d'arte, N° 3 (2014)
Percorsi digitali per le immagini del fondo Supino: tra tutela, didattica e critica d’arte
Creators: name: Di Pietro, Irene
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: Igino Benvenuto Supino; tutela; didattica; storia dell'arte; Bologna

description: Il lascito Supino, donato dagli eredi all’Istituto di Storia dell’Arte dell’Università di Bologna nel 1952 come fondo documentale, comprende, all’interno della straordinaria eredità dello studioso, la raccolta di circa 8.200 immagini fotografiche. Si tratta di strumenti indispensabili per il lavoro del critico, raccolti secondo lo stile personalissimo degli studi condotti durante tutta una vita.
La fotografia diventa, all’interno di una formazione personale, una risorsa preziosa per la conoscenza diretta e per lo sviluppo di percorsi critici, nonché per l’esercizio della tutela, divenendo essa stessa oggetto di studio. La strategica importanza della creazione di un fondo fotografico nel cuore del Dipartimento (ora delle Arti) grazie al generoso intervento degli eredi, ha permesso dunque il proseguimento di questi aspetti fondanti dell’esperienza dello studio di Supino: la critica d’arte, la tutela e la didattica, affinché anche le nuove generazioni potessero procedere con la medesima metodologia individuata dallo studioso stesso.
Il fondo fotografico è stato, negli anni, ordinato e organizzato per permetterne la consultazione agli studiosi; nel 2005, nell’ambito del progetto di valorizzazione dei materiali fotografici della fototeca del Dipartimento, è iniziata una campagna per l’archiviazione digitale delle immagini secondo gli standard dell’ICCD, effettivamente mai portata a termine a causa della mancanza di fondi dedicati.
È necessario, però, non lasciare incompiuto questo importante proposito, individuando obiettivi attuali che, oltre alla fondamentale archiviazione, possano prevedere anche la creazione di percorsi digitali di approfondimento, accessibili per ogni utente, affinché, tramite le nuove metodologie di fruizione digitale, si possa ripercorrere e conoscere la personale esperienza di conoscenza intrapresa da Supino.
L’aspetto della contestualizzazione nello studio delle opere di un vasto patrimonio artistico si è rivelata, d’altronde, un tratto distintivo della metodologia del critico: è necessario proseguire nella medesima direzione e offrire, attraverso la contestualizzazione proprio delle sue immagini di studio, percorsi trasversali che possano dialogare in maniera sistematica e interdisciplinare e che possano rispondere con reale efficacia alla vocazione didattica delle fotografie del fondo con l’ausilio delle molteplici possibilità offerte dalle nuove tecnologie.
description: INTRECCI d'arte, N° 3 (2014)
Declaration of Intention of Albert Boetch
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1887

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by: Albert Boetch  Applicant age: 22Occupation: UnknownCountry of Origin: GermanyDate of Birth: UnknownSailed to the US aboard the vessel: Unknown  Declaration submitted and sworn: 13 December  1887
Declaration of Intention of Louis Mueller
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1886

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by:   Applicant age:39Occupation: unknownCountry of Origin:GermanyDate of Birth: unknownSailed to the US aboard the vessel:   unknownDeclaration submitted and sworn: 14 September 1886Residing in: Unknown
Declaration of Intention of Albert Renscher
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1886

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by:   Applicant age: 29Occupation: unknownCountry of Origin:GermanyDate of Birth: UnknownSailed to the US aboard the vessel:  Unknown Declaration submitted and sworn: 26 January 1886Residing in: Unknown
Moduli of toric vector bundles
Creators: name: Payne, Sam
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J60 (Primary); 14D20, 14F05, 14J10, 14M25 (Secondary)

description: We give a presentation of the moduli stack of toric vector bundles with fixed equivariant total Chern class as a quotient of a fine moduli scheme of framed bundles by a linear group action. This fine moduli scheme is described explicitly as a locally closed subscheme of a product of partial flag varieties cut out by combinatorially specified rank conditions. We use this description to show that the moduli of rank three toric vector bundles satisfy Murphy's Law, in the sense of Vakil. The preliminary sections of the paper give a self-contained introduction to Klyachko's classification of toric vector bundles.
description: 16 pages. v2: corrected inconsistencies in sign conventions, other minor changes. To appear in Compos. Math
The impact of the fourth SM family on the Higgs observability at the LHC
Creators: name: Arik, E.
name: Cetin, S. A.
name: Sultansoy, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that if the fourth SM fermion family exists then the Higgs boson could be observed at the LHC with an integrated luminosity of few fb-1. The Higgs discovery potential for different channels is discussed in the presence of the fourth SM family.
description: 4pages, 6 figures
Empirical Scaling Laws of Rocket Exhaust Cratering
Creators: name: Donohue, Carly M.
name: Metzger, Philip T.
name: Immer, Christopher D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: When launching or landing a spacecraft on the regolith of a terrestrial surface, special attention needs to be paid to the rocket exhaust cratering effects. If the effects are not controlled, the rocket cratering could damage the spacecraft or other surrounding hardware. The cratering effects of a rocket landing a planet's surface are not understood well, especially for the lunar case with the plume expanding in vacuum. As a result, the blast effects cannot be estimated sufficiently using analytical theories. It is necessary to develop physics-based simulation tools in order to calculate mission-essential parameters. In this work we test out the scaling laws of the physics in regard to growth rate of the crater depth. This will provide the physical insight necessary to begin the physics-based modeling.
description: 3 pages, 3 figures
A descriptive study of the perceptions of young adults with asthma : their health problems, associated learning needs, and relationships between selected demographic and personal variables, and perceived learning needs
Creators: name: Richardson, Heather Margaret
Publisher: name: University of British Columbia
Year: 2010

description: The Incentive for doing this research originated from a concern for the provision of relevant health education for young adults with bronchial asthma of the extrinsic type. The study describes the perceptions of young adults with asthma in respect to their health problems related to asthma, their associated learning needs, and determines relationships between selected demographic and personal variables and perceived learning needs. Survey methodology was used. Twenty young adult participants, between the ages of 20 - 45 and who had extrinsic asthma, were interviewed. The U.B.C. Model for Nursing (1980) facilitated the attainment and organization of participant perceptions. Statistical analysis was done using Fisher's Exact Test to determine relationships between selected demographic and personal variables, and perceived learning needs. The findings revealed that the common health problems of young adults with asthma were: lifestyle, symptom control, self-esteem, social isolation, adjustment, psychological and intervention problems. Common learning needs were associated with symptom control (the majority of the learning needs identified), lifestyle, and interaction problems. The learning needs described did not however address the multiple health problems which had been identified by the sample. Lastly, relationships existed between two personal variables (length of time diagnosed and how frequently professional health care due to asthma was sought), and one demographic variable (having dependents — children) and perceived learning needs. These findings suggested the following conclusions: that the health problems and learning needs of young adults with asthma of the extrinsic type were multiple, pervasive and diverse (this finding is congruous with what has been established in the allied health literature); that the diversity in perceived learning needs, among the participants, were statistically related to personal or demographic variables; and finally that there was some incongruence between the health problems experienced by the participants and their associated learning needs.
U(1)_R mediation from the flux compactification in six dimensions
Creators: name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a supersymmetric completion of codimension-two branes with nonzero tension in a 6D gauged supergravity. As a consequence, we obtain the football solution with 4D Minkowski space as a new supersymmetric background that preserves 4D N=1 SUSY. In the presence of brane multiplets, we derive the 4D effective supergravity action for the football background and show that the remaining modulus can be stabilized by a bulk non-perturbative correction with brane uplifting potentials at a zero vacuum energy. We find that the U(1)_R mediation can be a dominant source of SUSY breaking for a brane scalar with nonzero R charge.
description: 3 pages, no figures, to appear in the proceedings of the 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY-2008), Seoul, Korea, 16-21 June, 2008
FACTORS AFFECTING THAI STUDENTS' PARTICIPATION IN DIALOGIC TALKS IN EFL CLASSES: STUDENTS' PERSPECTIVES
Creators: name: Piyawan Rungwarapong
Publisher: name: National Research Council of Thailand
Year: 2019
Subjects: dialogic talks
EFL classes
interactions
learning environment
Thai students

description: SOCIAL SCIENCE ASIA : Official Journal of National Research Council of Thailand in conjunction with ABAC Journal, 5, 1, 12-21
Enhanced negative type for finite metric trees
Creators: name: Doust, Ian
name: Weston, Anthony
Publisher: name: arXiv
Year: 2007
Subjects: subject: Functional Analysis (math.FA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 46B20, 52B05, 05C05

description: Finite metric trees are known to have strict 1-negative type. In this paper we introduce a new family of inequalities that quantify the extent of the "strictness" of the 1-negative type inequalities for finite metric trees. These inequalities of "enhanced 1-negative type" are sufficiently strong to imply that any given finite metric tree must have strict p-negative type for all values of p in an open interval that contains the number 1. Moreover, these open intervals can be characterized purely in terms of the unordered distribution of edge weights that determine the path metric on the particular tree, and are therefore largely independent of the tree's internal geometry. From these calculations we are able to extract a new non linear technique for improving lower bounds on the maximal p-negative type of certain finite metric spaces. Some pathological examples are also considered in order to stress certain technical points.
description: 35 pages, no figures. This is the final version of this paper sans diagrams. Please note the corrected statement of Theorem 4.16 (and hence inequality (1)). A scaling factor was omitted in Version #1
Hemiptera
Creators: name: Zuparko, Robert L.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera

description: Order HEMIPTERA   Aclerdidae
 Aclerda subterranea Signoret Cheiloneurus elegans (H)
description: Published as part of Zuparko, Robert L., 2015, Annotated Checklist of California Encyrtidae (Hymenoptera), pp. 1-126 in Zootaxa 4017 (1) on page 84, DOI: 10.11646/zootaxa.4017.1.1, http://zenodo.org/record/245475
Πλατφόρμα υποστήριξης λογισμικού εσωτερικού κώδικα
Creators: name: Βασιλόγαμβρος, Ευάγγελος Θεόφιλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: Εσωτερικός κώδικας
Λογισμικό Ανοιχτού Κώδικα
Ανάπτυξη Λογισμικού
Inner Source
Open Source Software
Software Development

description: Η παρούσα διπλωματική εργασία επικεντρώνεται στη δημιουργία μιας πλατφόρμας που επιτρέπει στις εταιρείες να εφαρμόσουν τις πρακτικές του Inner Source. To Inner Source, που αντλεί στοιχεία του ανοιχτού κώδικα, ενθαρρύνει τη συνεργασία, την καινοτομία και υιοθετεί τις βέλτιστες πρακτικές ανάπτυξης λογισμικού εντός των οργανισμών. Η εργασία περιλαμβάνει την ανάλυση των θεωρητικών στοιχείων του Inner Source, τη μεθοδολογία ανάπτυξης, την ανάλυση και τη σχεδίαση της πλατφόρμας, αξιοποιώντας εργαλεία, όπως το framework της PHP, Laravel. Αποτέλεσμα της εργασίας αποτελεί η ανάπτυξη μιας πλήρως λειτουργικής πλατφόρμας, που προσφέρει διαφάνεια και ένα ευχάριστο περιβάλλον, για τη διαχείριση των έργων και την ενίσχυση της συμμετοχής των εργαζομένων.
description: This thesis focuses on the creation of a platform that allows companies to implement Inner Source practices. Inner Source, inspired by open source principles, encourages collaboration, innovation and the adoption of best practices in software development within organizations. The thesis includes an analysis of the theoretical aspects of Inner Source, the development methodology, as well as the platform's analysis and design, utilizing tools such as the PHP framework Laravel. The result of this work is the development of a fully functional platform that provides transparency and a user-friendly environment for project management and enhancing employee engagement.
What is empathy for laypeople? – A replication study of Hall, Schwartz, and Duong (2021)
Creators: name: Lyshol, Johanna K. Blomster
name: Bastos, Rafael Valdece Sousa
name: Isager, Peder Mortvedt
name: Blystad, Magnus H.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: To understand how laypeople define empathy, Hall, Schwartz, and Duong (2021) asked U.S. participants to rate how well items from various empathy measures matched their own definitions. The current paper (N = 549) is a replication of Hall, Schwartz, and Duong (2021, Study 2) using a highly similar study procedure, with a small extension consisting of items from an emotional contagion scale. We conducted a multi-group CFA to test the replicability of Hall et al.’s model, but the factor structure was not replicated. As an extension, we conducted an exploratory graph analysis (EGA), that revealed a similar factor structure, though some items were discarded due to poor fit. Additionally, the ranking of the items (i.e. what the participants saw as closest to their definition of empathy) shows the same pattern as in the original study. We consider this to be a successful partial replication of Hall et al.’s (2021) findings.
Distributing the Kalman Filter for Large-Scale Systems
Creators: name: Khan, Usman A.
name: Moura, Jose M. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper derives a \emph{distributed} Kalman filter to estimate a sparsely connected, large-scale, $n-$dimensional, dynamical system monitored by a network of $N$ sensors. Local Kalman filters are implemented on the ($n_l-$dimensional, where $n_l\ll n$) sub-systems that are obtained after spatially decomposing the large-scale system. The resulting sub-systems overlap, which along with an assimilation procedure on the local Kalman filters, preserve an $L$th order Gauss-Markovian structure of the centralized error processes. The information loss due to the $L$th order Gauss-Markovian approximation is controllable as it can be characterized by a divergence that decreases as $L\uparrow$. The order of the approximation, $L$, leads to a lower bound on the dimension of the sub-systems, hence, providing a criterion for sub-system selection. The assimilation procedure is carried out on the local error covariances with a distributed iterate collapse inversion (DICI) algorithm that we introduce. The DICI algorithm computes the (approximated) centralized Riccati and Lyapunov equations iteratively with only local communication and low-order computation. We fuse the observations that are common among the local Kalman filters using bipartite fusion graphs and consensus averaging algorithms. The proposed algorithm achieves full distribution of the Kalman filter that is coherent with the centralized Kalman filter with an $L$th order Gaussian-Markovian structure on the centralized error processes. Nowhere storage, communication, or computation of $n-$dimensional vectors and matrices is needed; only $n_l \ll n$ dimensional vectors and matrices are communicated or used in the computation at the sensors.
Mode excitation Monte Carlo simulations of mesoscopically large membranes
Creators: name: Farago, Oded
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Solvent-free coarse grained models represent one of the most promising approaches for molecular simulations of mesoscopically large membranes. In these models, the size of the simulated membrane is limited by the slow relaxation time of longest bending mode. Here, we present a Monte Carlo algorithm with update moves in which all the lipids are displaced simultaneously. These collective moves result in fast excitation and relaxation of the long wavelength thermal fluctuations. We apply the method to simulations of a bilayer membrane of linear size $\sim 50 {\rm nm}$ and show reduction of the relaxation time by two orders of magnitudes when compared to conventional Monte Carlo.
description: Accepted for publication in J. Chem. Phys
Effects of Orbital Eccentricity on Extrasolar Planet Transit Detection and Lightcurves
Creators: name: Barnes, Jason W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is shown herein that planets with eccentric orbits are more likely to transit than circularly orbiting planets with the same semimajor axis by a factor of (1-e^2)^{-1}. If the orbital parameters of discovered transiting planets are known, as from follow-up radial velocity observations, then the transit-detected planet population is easily debiased of this effect. The duration of a planet's transit depends upon of its eccentricity and longitude of periastron; transits near periastron are shorter, and those near apoastron last longer, for a given impact parameter. If fitting for the stellar radius with the other transit parameters, this effect causes a systematic error in the resulting measurements. If the stellar radius is instead held fixed at a value measured independently, then it is possible to place a lower limit on the planet's eccentricity using photometry alone. Orbital accelerations cause a difference in the planet's ingress and egress durations that lead to an asymmetry in the transit lightcurve that could be used along with the transit velocity measurement to uniquely measure the planet's eccentricity and longitude of periapsis. However, the effect is too small to be measured with current technology. The habitability of transiting terrestrial planets found by Kepler depends on those planets' orbital eccentricities. While Kepler will be able to place lower limits on those planets' orbital eccentricity, the actual value for any given planet will likely remain unknown.
description: 8 pages, 6 figures, to appear in PASP 2007 September
Large temperature dependence of the Casimir force at the metal-insulator transition
Creators: name: Galkina, E. G.
name: Ivanov, B. A.
name: Savel'ev, Sergey E.
name: Yampol'skii, V. A.
name: Nori, Franco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dependence of the Casimir force on material properties is important for both future applications and to gain further insight on its fundamental aspects. Here we derive a general theory of the Casimir force for low-conducting compounds, or poor metals. For distances in the micrometer range, a large variety of such materials is described by universal equations containing a few parameters: the effective plasma frequency, dissipation rate of the free carriers, and electric permittivity in the infrared range. This theory can also describe inhomogeneous composite materials containing small regions with different conductivity. The Casimir force for mechanical systems involving samples made with compounds that have a metal-insulator transition shows an abrupt large temperature dependence of the Casimir force within the transition region, where metallic and dielectric phases coexist.
description: 23 pages, 9 figures
Edges and Switches, Tunnels and Bridges
Creators: name: Eppstein, David
name: van Kreveld, Marc
name: Mumford, Elena
name: Speckmann, Bettina
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: F.2.2

description: Edge casing is a well-known method to improve the readability of drawings of non-planar graphs. A cased drawing orders the edges of each edge crossing and interrupts the lower edge in an appropriate neighborhood of the crossing. Certain orders will lead to a more readable drawing than others. We formulate several optimization criteria that try to capture the concept of a "good" cased drawing. Further, we address the algorithmic question of how to turn a given drawing into an optimal cased drawing. For many of the resulting optimization problems, we either find polynomial time algorithms or NP-hardness results.
description: 15 pages, 11 figures. To appear in 10th Worksh. Algorithms and Data Structures, Halifax, Nova Scotia, 2007. This version includes three pages of appendices that will not be included in the conference proceedings version
Extracting current-induced spins: spin boundary conditions at narrow Hall contacts
Creators: name: Adagideli, I.
name: Scheid, M.
name: Wimmer, M.
name: Bauer, G. E. W.
name: Richter, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the possibility to extract spins that are generated by an electric current in a two-dimensional electron gas with Rashba-Dresselhaus spin-orbit interaction (R2DEG) in the Hall geometry. To this end, we discuss boundary conditions for the spin accumulations between a spin-orbit coupled region and contact without spin-orbit coupling, i.e. a normal two-dimensional electron gas (2DEG). We demonstrate that in contrast to contacts that extend along the whole sample, a spin accumulation can diffuse into the normal region through finite contacts and detected by e.g. ferromagnets. For an impedance-matched narrow contact the spin accumulation in the 2DEG is equal to the current induced spin accumulation in the bulk of R2DEG up to a geometry-dependent numerical factor.
description: 18 pages, 7 figures, submitted to NJP focus issue on Spintronics
Dynamical vertex approximation -- an introduction
Creators: name: Held, K.
name: Katanin, A. A.
name: Toschi, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We give an elementary introduction to a recent diagrammatic extension of dynamical mean field theory (DMFT) coined dynamical vertex approximation (D$Γ$A). This approach contains the important local correlations of DMFT, giving, among others, rise to quasiparticle renormalizations, Mott-Hubbard transitions and magnetism, but also non-local correlations beyond. The latter are at the very essence of many physical phenomena in strongly correlated elecectron systems. As correlations are treated equally on all length scales, D$Γ$A allows us to describe physical phenomena such as magnons, quantum criticality, and the interplay between antiferromagnetism and superconductivity. We review results hitherto obtained for the Hubbard model in dimensions d=3, 2, and 1.
description: An elementary introduction to dynamical vertex approximation given at the YKIS 2007 conference in Kyoto, Japan. 17 pages, 14 figures in 19 eps files
แนวทางการฟื้นฟูวัฒนธรรมดนตรีชาติพันธุ์ไทลื้อ (การขับลื้อ) ตำบลสะเมิงใต้ อำเภอสะเมิง จังหวัดเชียงใหม่
Creators: name: พรสวรรค์ จันทะวงศ์
Publisher: name: มหาวิทยาลัยราชภัฏเชียงใหม่
Year: 2019
Subjects: การฟื้นฟู
วัฒนธรรมดนตรีชาติพันธุ์ไทลื้อ
ตำบลสะเมิงใต้
อำเภอสะเมิง
จังหวัดเชียงใหม่

description: วารสารวิจัยราชภัฏเชียงใหม่, 20, 1, 41-56
Ultrasensitive optical magnetometry at the microscale
Creators: name: Forstner, Stefan
name: Sheridan, Eoin
name: Knittel, Joachim
name: Humphreys, Christopher L.
name: Brawley, George A.
name: Rubinsztein-Dunlop, Halina
name: Bowen, Warwick P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Recent advances in optical magnetometry have achieved record sensitivity at both macro- and nano-scale. Combined with high bandwidth and non-cryogenic operation, this has enabled many applications. By comparison, microscale optical magnetometers have been constrained to sensitivities five orders-of-magnitude worse than the state-of-the-art. Here, we report an ambient optical micro-magnetometer operating for the first time in the picoTesla range, a more than three order-of-magnitude advance on previous results. Unlike other ultrasensitive optical magnetometers, the device operates at earth field, achieves tens of MHz bandwidth, and is integrated and fiber coupled. Combined with 60 micrometer spatial resolution and microWatt optical power requirements, these unique capabilities open up a broad range of applications including cryogen-free and microfluidic magnetic resonance imaging, and electromagnetic interference-free investigation of spin physics in condensed matter systems such as semiconductors and ultracold atom clouds
Electronic liquid crystal state in the high-temperature superconductor YBCO(6.45)
Creators: name: Hinkov, V.
name: Haug, D.
name: Fauque, B.
name: Bourges, P.
name: Sidis, Y.
name: Ivanov, A.
name: Bernhard, C.
name: Lin, C. T.
name: Keimer, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Electronic phases with symmetry properties matching those of conventional liquid crystals have recently been discovered in transport experiments on semiconductor heterostructures and metal oxides at milli-Kelvin temperatures. We report the spontaneous onset of a onedimensional, incommensurate modulation of the spin system in the high-temperature superconductor YBa2Cu3O6.45 upon cooling below ~150 K, while static magnetic order is absent above 2 K. The evolution of this modulation with temperature and doping parallels that of the in-plane anisotropy of the resistivity, indicating an electronic nematic phase that is stable over a wide temperature range. The results suggest that soft spin fluctuations are a microscopic route towards electronic liquid crystals, and nematic order can coexist with high-temperature superconductivity in underdoped cuprates.
description: 10 pages, 4+2 figures, includes a "materials and methods" as well as a "supporting text" section
Ranking by Loops: a new approach to categorization
Creators: name: Van Kerrebroeck, Valery
name: Marinari, Enzo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We introduce Loop Ranking, a new ranking measure based on the detection of closed paths, which can be computed in an efficient way. We analyze it with respect to several ranking measures which have been proposed in the past, and are widely used to capture the relative importance of the vertices in complex networks. We argue that Loop Ranking is a very appropriate measure to quantify the role of both vertices and edges in the network traffic.
description: 4 pages, 2 figures, 1 table, corrected misprint
An Assessment of Broadband Optical Colours as Age Indicators for Star Clusters
Creators: name: Hancock, M.
name: Smith, B. J.
name: Giroux, M. L.
name: Struck, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an empirical assessment of the use of broadband optical colours as age indicators for unresolved extragalactic clusters and investigate stochastic sampling effects on integrated colours. We use the integrated properties of Galactic open clusters as models for unresolved extragalactic clusters. The population synthesis code Starburst99 (Leitherer et al. 1999) and four optical colours were used to estimate how well we can recover the ages of 62 well-studied Galactic open clusters with published ages. We provide a method for estimating the ages of unresolved clusters and for reliably determining the uncertainties in the age estimates. Our results support earlier conclusions based on comparisons to synthetic clusters, namely the (U-B) colour is critical to the estimation of the ages of star forming regions. We compare the observed optical colours with those obtained from Starburst99 using the published ages and get good agreement. The scatter in the (B-V)_observed-(B-V)_model is larger for lower luminosity clusters, perhaps due to stochastic effects.
description: 9 pages, 6 figures, 2 tables, accepted for publication in MNRAS on 7/7/08
Data and code for analyses associated with the ZAX Herbivory Trainer
Creators: name: Xirocostas, Zoe
name: Debono, Samuel
name: Slavich, Eve
name: Moles, Angela
Publisher: name: Zenodo
Year: 2021

description: This repository contains the data and R code for analyses in our paper - The ZAX Herbivory Trainer - free software for training researchers to visually estimate leaf damage.
Closing the window on WIMP Dark Matter
Creators: name: Bottaro, Salvatore
name: Buttazzo, Dario
name: Costa, Marco
name: Franceschini, Roberto
name: Panci, Paolo
name: Redigolo, Diego
name: Vittorio, Ludovico
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study scenarios where Dark Matter is a weakly interacting particle (WIMP) embedded in an ElectroWeak multiplet. In particular, we consider real SU(2) representations with zero hypercharge, that automatically avoid direct detection constraints from tree-level Z-exchange. We compute for the first time all the calculable thermal masses for scalar and fermionic WIMPs, including Sommerfeld enhancement and bound states formation at leading order in gauge boson exchange and emission. WIMP masses of few hundred TeV are shown to be compatible both with s-wave unitarity of the annihilation cross-section, and perturbativity. We also provide theory uncertainties on the masses for all multiplets, which are shown to be significant for large SU(2) multiplets. We then outline a strategy to probe these scenarios at future experiments. Electroweak 3-plets and 5-plets have masses up to about 16 TeV and can efficiently be probed at a high energy muon collider. We study various experimental signatures, such as single and double gauge boson emission with missing energy, and disappearing tracks, and determine the collider energy and luminosity required to probe the thermal Dark Matter masses. Larger multiplets are out of reach of any realistic future collider, but can be tested in future gamma ray telescopes and possibly in large-exposure liquid Xenon experiments.
description: Some clarifications and references added, conclusion unchanged. Matching published version on EPJC. 16+12 pages, 16 figures, 4 tables
Declaration of Intention of Sebastian Herrmann
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1886

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by:   Applicant age: 38 Occupation: unknownCountry of Origin:GermanyDate of Birth: unknownSailed to the US aboard the vessel:   unknownDeclaration submitted and sworn: 14 September 1886Residing in: Unknown
Higgs decays in supersymmetric models with light neutralinos
Creators: name: Yaguna, Carlos E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the Minimal Supersymmetric Standard Model, neutralinos lighter than 50 GeV are compatible with all accelerator, precision, and cosmological bounds. Such neutralinos might constitute a relevant decay channel for the Higgs boson, modifying its expected signatures at hadron colliders. We study the branching ratio h --> χχand determine the region in the supersymmetric parameter space where it is sizable. We have found that, in fact, the Higgs may dominantly decay into neutralino pairs. Besides, as a result of this new channel, the branching ratio into visible modes, such as h --> γγ, gets suppressed.
description: 9 pages, 5 figures
Declaration of Intention of Ernst Meyer
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1885

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by:   Applicant age:24Occupation: unknownCountry of Origin:GermanyDate of Birth: unknownSailed to the US aboard the vessel:   unknownDeclaration submitted and sworn: 11 September 1885Residing in: Unknown
Declaration of Intention of Nickolas Keller
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1886

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by:  Nickolas KellerApplicant age: 40Occupation:  UnknownCountry of Origin: GermanyDate of Birth: UnknownSailed to the US aboard the vessel:  UnknownDeclaration submitted and sworn: April 15, 1886Residing in: Unknown
On countably compact 0-simple topological inverse semigroups
Creators: name: Gutik, Oleg
name: Repovš, Dušan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 20M18; 22A15

description: We describe the structure of 0-simple countably compact topological inverse semigroups and the structure of congruence-free countably compact topological inverse semigroups.
Microwave Absorption of Surface-State Electrons on Liquid $^3$He
Creators: name: Isshiki, Hanako
name: Konstantinov, Denis
name: Akimoto, Hikota
name: Shirahama, Keiya
name: Kono, Kimitoshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the intersubband transitions of surface state electrons (SSE) on liquid $^3$He induced by microwave radiation at temperatures from 1.1 K down to 0.01 K. Above 0.4 K, the transition linewidth is proportional to the density of $^3$He vapor atoms. This proportionality is explained well by Ando's theory, in which the linewidth is determined by the electron - vapor atom scattering. However, the linewidth is larger than the calculation by a factor of 2.1. This discrepancy strongly suggests that the theory underestimates the electron - vapor atom scattering rate. At lower temperatures, the absorption spectrum splits into several peaks. The multiple peak structure is partly attributed to the spatial inhomogeneity of the static holding electric field perpendicular to the electron sheet.
description: 15 pages, 7 figures, submitted to J. Phys. Soc. Jpn
On linearly ordered $H$-closed topological semilattices
Creators: name: Gutik, Oleg
name: Repovš, Dušan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 06A12; 06F30; 22A15; 22A26; 54H12

description: We give a criterium when a linearly ordered topological semilattice is $H$-closed. We also prove that any linearly ordered $H$-closed topological semilattice is absolutely $H$-closed and we show that every linearly ordered semilattice is a dense subsemilattice of an $H$-closed topological semilattice.
Various Approaches for Predicting Land Cover in Mountain Areas
Creators: name: Villa, Nathalie
name: Paegelow, Martin
name: Olmedo, Maria T. Camacho
name: Cornez, Laurence
name: Ferraty, Frédéric
name: Ferré, Louis
name: Sarda, Pascal
Publisher: name: arXiv
Year: 2007
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Using former maps, geographers intend to study the evolution of the land cover in order to have a prospective approach on the future landscape; predictions of the future land cover, by the use of older maps and environmental variables, are usually done through the GIS (Geographic Information System). We propose here to confront this classical geographical approach with statistical approaches: a linear parametric model (polychotomous regression modeling) and a nonparametric one (multilayer perceptron). These methodologies have been tested on two real areas on which the land cover is known at various dates; this allows us to emphasize the benefit of these two statistical approaches compared to GIS and to discuss the way GIS could be improved by the use of statistical models.
description: 14 pages; Classifications: Information Theory; Probability Theory & Applications; Statistical Computing; Statistical Theory & Methods