cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Dirac -- Kerr-Newman electron
Creators: name: Burinskii, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the relation of the Kerr-Newman spinning particle to the Dirac electron and show that the Dirac equation may naturally be incorporated into Kerr-Schild formalism as a master equation controlling the Kerr-Newman geometry. As a result, the Dirac electron acquires an extended space-time structure of the Kerr-Newman geometry - singular ring of the Compton size and twistorial polarization of the gravitational and electromagnetic fields. Behavior of this Dirac -- Kerr-Newman system in the weak and slowly changed electromagnetic fields is determined by the wave function of the Dirac equation, and is indistinguishable from the behavior of the Dirac electron. The wave function of the Dirac equation plays in this model the role of an ``order parameter'' which controls dynamics, spin-polarization and twistorial structure of space-time.
description: 13 pages, 5 figures, Revtex4, close to final version, to appear in Grav.Cosmol
Large-scale alpha^2-dynamo in low-mass stars and brown dwarfs
Creators: name: Chabrier, Gilles
name: Kueker, Manfred
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop a model based on 3D mean-field MHD for the generation of large scale magnetic fields in fully convective objects like low-mass stars, brown dwarfs and possibly gaseous planets. The dynamo process is of alpha^2 type and thus differs from the shell-dynamo at work in more massive stars.The alpha^2 dynamo becomes supercritical for Rossby numbers Ro\la 10. It generates a large-scale, non-axisymmetric, steady field that is symmetric with respect to the equatorial plane. Saturation of the alpha^2-generated field at the equipartition yields strengths of several kGauss, in agreement with observations of active M dwarfs, and provides a qualitative explanation for the observed activity saturation in late M stars. For brown dwarfs with a conductive core, as occurs at the center of the most massive and oldest of these objects, we have also studied an alpha^2-Omega dynamo, i.e. the effect of differential rotation. In this case the field is predominantly toroidal, axisymmetric and oscillatory, like the solar field. The topology of the field in the fully convective objects exhibits a high order multipole character that differs from the aligned dipole field generated by the alpha-Omega dynamo. The strong reduction of the dipolar component due to the field non-axisymmetry should considerably reduce the Alfven radius and thus the efficiency of magnetic braking, providing an appealing explanation for the decreasing angular momentum loss rate observed in low-mass stars and brown dwarfs. This may have also implications for cataclysmic variables below the period gap. In spite of this large-scale field, the decreasing conductivity in the dominantly neutral atmosphere of these objects prevents the current generation necessary to support a chromosphere and thus activity. (Abridged)
description: To appear in Astronomy & Astrophysics
Relativistic aberration and null Doppler shift within the framework of superluminal and subluminal nondiffracting waves
Creators: name: Saari, Peeter
name: Besieris, Ioannis M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The relativistic aberration of a wavevector and the corresponding Doppler shift are examined in connection with superluminal and subluminal spatiotemporally localized pulsed optical waves. The requirement of a null Doppler shift is shown to give rise to a speed associated with the relativistic velocity composition law of a double (two-step) Lorentz transformation. The effects of such a transformation are examined both in terms of four-coordinates and in the spectral domain. It is established that a subluminal pulse reverses its direction. In addition to a change in direction, the propagation term of a superluminal pulse becomes negative. The aberration due to a double Lorentz transformation is examined in detail for propagation invariant superluminal waves (X wave, Bessel X wave), as well as intensity-invariant superluminal and subluminal waves. Detailed symmetry considerations are provided for the superluminal focus X wave and the subluminal MacKinnon wavepacket.
description: 15 pages, 6 figures
Non-market Valuation Biases Due to Aboriginal Cultural Characteristics in Northern Saskatchewan: The Values Structures Component
Creators: name: Murray, Eloise C.
name: Adamowicz, Wiktor L.
name: Beckley, Thomas M.
name: MacDonald, Darla Hatton
name: Just, Lesley
name: Luckert, Martin K.
name: Phillips, William
name: Murray, Eloise C.
name: Adamowicz, Wiktor L.
name: Beckley, Thomas M.
name: MacDonald, Darla Hatton
name: Just, Lesley
name: Luckert, Martin K.
name: Phillips, William
Publisher: name: Unknown
Year: 1995
Subjects: Resource /Energy Economics and Policy

description: Current non-market valuation techniques have been developed based on assumptions about values held within the Eurocentred culture. Contentions between cultures over natural resources are hypothesized to occur because of differences in held values resulting in different values being assigned to the resources in question. This study measured the held values of an Aboriginal band in Northern Saskatchewan as the first dimension of a non-market valuation study of natural resources. These held value structures are presented noting differences by age and gender and in comparison with the local Non-Aboriginal community and another Aboriginal group in northern Alberta.
Irradiated asymmetric Friedmann branes
Creators: name: Gergely, László Á.
name: Keresztes, Zoltán
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a Friedmann brane moving in a bulk impregnated by radiation. The setup is strongly asymmetric, with only one black hole in the bulk. The radiation emitted by this bulk black hole can be reflected, absorbed or transmitted through the brane. Radiation pressure accelerates the brane, behaving as dark energy. Absorption however generates a competing effect: the brane becomes heavier and gravitational attraction increases. We analyse the model numerically, assuming a total absorbtion on the brane for k=1. We conclude that due to the two competing effects, in this asymmetric scenario the Hawking radiation from the bulk black hole is not able to change the recollapsing fate of this brane-world universe. We show that for light branes and early times the radiation pressure is the dominant effect. In contrast, for heavy branes the self-gravity of the absorbed radiation is a much stronger effect. We find the critical value of the initial energy density for which these two effects roughly cancel each other.
description: 27 pages, 12 figures
Black hole entropy: inside or out?
Creators: name: Jacobson, Ted
name: Marolf, Donald
name: Rovelli, Carlo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A trialogue. Ted, Don, and Carlo consider the nature of black hole entropy. Ted and Carlo support the idea that this entropy measures in some sense ``the number of black hole microstates that can communicate with the outside world.'' Don is critical of this approach, and discussion ensues, focusing on the question of whether the first law of black hole thermodynamics can be understood from a statistical mechanics point of view.
description: 42 pages, contribution to proceedings of Peyresq 9
Hidden symmetry and tunnelling dynamics in asymmetric quantum Rabi models
Creators: name: Li, Zi-Min
name: Batchelor, Murray T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The asymmetric quantum Rabi model (AQRM) has a broken $\mathbb{Z}_2$ symmetry, with generally a non-degenerate eigenvalue spectrum. In some special cases where the asymmetric parameter is a multiple of the cavity frequency, stable level crossings typical of the $\mathbb{Z}_2$-symmetric quantum Rabi model are recovered, however, without any obvious parity-like symmetry. This unknown "symmetry" has thus been referred to as hidden symmetry in the literature. Here we show that this hidden symmetry is not limited to the AQRM, but exists in various related light-matter interaction models with an asymmetric qubit bias term. Conditions under which the hidden symmetry exists in these models are determined and discussed. By investigating tunnelling dynamics in the displaced oscillator basis, a strong connection is found between the hidden symmetry and selective tunnelling.
description: 9 pages, 6 figures
Additional file 1 of Factors determining the knowledge and prevention practice of healthcare workers towards COVID-19 in Amhara region, Ethiopia: a cross-sectional survey
Creators: name: Asemahagn, Mulusew Andualem
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Information sheet, Statement of Consent, Questionnaire.
War der Zusammenschluss dreier Taufgesinnter Gruppen im Jahre 1941 ein Modellfall für kirchliche Einigung?
Creators: name: Luckey, Hans
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 8 Nr. 4 (1959): Ökumenische Rundschau, Band 8, Heft 4
The Consequences of Switching Strategies in a Two-Player Iterated Survival Game
Creators: name: Salagnac, Olivier
name: Wakeley, John
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We consider two-player iterated survival games in which players may switch from a more cooperative behavior to a less cooperative one at some step of the game. Payoffs are survival probabilities and lone individuals have to finish the game on their own. We explore the potential of these games to support cooperation, focusing on the case in which each single step is a Prisoner's Dilemma. We find that incentives for or against cooperation depend on the number of defections at the end of the game, as opposed to the number of steps in the game. Broadly, cooperation is supported when the survival prospects of lone individuals are relatively bleak. Specifically, we find three critical values or cutoffs for the loner survival probability which, in concert with other survival parameters, determine the incentives for or against cooperation. One cutoff determines the existence of an optimal number of defections against a fully cooperative partner, one determines whether additional defections eventually become disfavored as the number of defections by the partner increases, and one determines whether additional cooperations eventually become favored as the number of defections by the partner increases. We obtain expressions for these switch-points and for optimal numbers of defections against partners with various strategies. These typically involve small numbers of defections even in very long games. We show that potentially long stretches of equilibria may exist, in which there is no incentive to defect more or cooperate more. We describe how individuals find equilibria in best-response walks among strategies, and establish that evolutionary stability requires there be just one such equilibrium. Otherwise, equilibria are not protected against invasion by strategies with fewer defections.
Gender and the Value of Trees in Mutoko Communal Area, Zimbabwe
Creators: name: Watson, Leslie C.
name: Murray, Eloise C.
name: Just, Lesley
name: Watson, Leslie C.
name: Murray, Eloise C.
name: Just, Lesley
Publisher: name: Unknown
Year: 1996
Subjects: Labor and Human Capital

description: This study examined the gender based differences in valuation of trees, as indicated by differences between men and women in the planting, care and use of tree resources. An analysis of differences in tree related behaviours between male headed households and female headed households was also undertaken. The study used a combination of quantitative and qualitative methodologies, including an interview schedule and card sort, supplemented by open-ended interviews and observations. The survey data were analysed using SPSS Windows. The study results indicate that trees were being planted and cared for in both male and female headed households and the majority of heads of households preferred multipurpose, fruit bearing tree species. There were differences in the types of tasks undertaken by men and women in both male and female headed households, the locus of decision making authority in the two types of households, and the uses of tree resources by men and women.
Relative abundance pattern along the profile of high redshift Damped Lyman-alpha systems
Creators: name: Rodriguez, E.
name: Petitjean, P.
name: Aracil, B.
name: Ledoux, C.
name: Srianand, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigated abundance ratios along the profiles of six high-redshift Damped Lyman-alpha systems, three of them associated with H2 absorption, and derived optical depths in each velocity pixel. The variations of the pixel abundance ratios were found to be remarkably small and usually smaller than a factor of two within a profile. This result holds even when considering independent sub-clumps in the same system. The depletion factor is significantly enhanced only in those components where H2 is detected. There is a strong correlation between [Fe/S] and [Si/S] abundances ratios, showing that the abundance ratio patterns are definitely related to the presence of dust. The depletion pattern is usually close to the one seen in the warm halo gas of our Galaxy.
description: 14 pages
Band Bending and Valence Band Quantization at Line Defects in MoS$_2$
Creators: name: Murray, Clifford
name: van Efferen, Camiel
name: Jolie, Wouter
name: Fischer, Jeison Antonio
name: Hall, Joshua
name: Rosch, Achim
name: Krasheninnikov, Arkady V.
name: Komsa, Hannu-Pekka
name: Michely, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The variation of the electronic structure normal to 1D defects in quasi-freestanding MoS$_2$, grown by molecular beam epitaxy, is investigated through high resolution scanning tunneling spectroscopy at $5$K. Strong upwards bending of valence and conduction bands towards the line defects is found for the 4|4E mirror twin boundary and island edges, but not for the 4|4P mirror twin boundary. Quantized energy levels in the valence band are observed wherever upwards band bending takes place. Focusing on the common 4|4E mirror twin boundary, density functional theory calculations give an estimate of its charging, which agrees well with electrostatic modeling. We show that the line charge can also be assessed from the filling of the boundary-localized electronic band, whereby we provide a measurement of the theoretically predicted quantized polarization charge at MoS$_2$ mirror twin boundaries. These calculations elucidate the origin of band bending and charging at these 1D defects in MoS$_2$. The 4|4E mirror twin boundary not only impairs charge transport of electrons and holes due to band bending, but holes are additionally subject to a potential barrier, which is inferred from the independence of the quantized energy landscape on either side of the boundary.
Arbitrary Lagrangian-Eulerian formulation for quasi-static and dynamic metal forming simulation
Creators: name: Bayoumi, Hassan N.
Publisher: name: University of British Columbia
Year: 2009

description: Many engineering problems involve large material deformation, large boundary motion and continuous changes in boundary conditions. The Arbitrary Lagrangian Eulerian (ALE) formulation has emerged in recent years as a technique that can alleviate many of the shortcomings of the traditional Lagrangian and Eulerian formulations in handling these types of problems. Using the ALE formulation the computational grid need not adhere to the material (Lagrangian) nor be fixed in space (Eulerian) but can be moved arbitrarily. Two distinct techniques are being used to implement the ALE formulation, namely the operator split approach and the fully coupled approach. A survey of the ALE literature shows that the majority of ALE implementations for quasi-static and dynamic analyses are based on the computationally convenient operator split technique. In addition, all previous dynamic ALE formulations are based on explicit time integration where no linearization is needed. This thesis presents a fully coupled implicit ALE formulation for the simulation of quasi-static and dynamic large deformation and metal forming problems. ALE virtual work equations are derived from the basic principles of continuum mechanics. A new method for the treatment of convective terms that sidesteps the computation of the spatial gradients of stresses is used in the derivation. The ALE virtual work equations are discretized using isoparametric finite elements. Full expression for the resulting ALE finite element matrices and vectors are given. A new relation that relates grid displacements with material displacements is introduced. The ALE finite element equations are implemented into a 2-D computer code for plane stress, plane strain and axisymmetric problems. The transfinite mapping method is used as the mesh motion scheme for internal nodes. A new treatment for mesh motion on material boundaries is introduced and implemented. Implicit, explicit and mixed implicitexplicit time integration schemes are implemented in the code. A line search technique is employed to accelerate the convergence of implicit calculations. Several quasi-static and dynamic large deformation applications are solved using the developed code. Experimental analysis of a simple V-bending process is conducted for comparison. Comparison of ALE predictions for deformed shapes, equivalent stress and plastic strain distributions and loading curves with analytical, numerical and experimental results are presented. ALE results are in good agreement with other methods of analysis. ALE is shown to prevent mesh distortion and eliminate the need for special contact treatments for problems with corner contact.
Scalar Field Contribution to Rotating Black Hole Entropy
Creators: name: Kenmoku, M.
name: Ishimoto, K.
name: Nandi, K. K.
name: Shigemoto, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Scalar field contribution to entropy is studied in arbitrary D dimensional one parameter rotating spacetime by semiclassical method. By introducing the zenithal angle dependent cutoff parameter, the generalized area law is derived. The non-rotating limit can be taken smoothly and it yields known results. The derived area law is then applied to the Banados-Teitelboim-Zanelli (BTZ) black hole in (2+1) dimension and the Kerr-Newman black hole in (3+1) dimension. The generalized area law is reconfirmed by the Euclidean path integral method for the quantized scalar field. The scalar field mass contribution is discussed briefly.
description: 26 pages
Assessment of bridge natural frequency as an indicator of scour using centrifuge modelling
Creators: name: Kariyawasam, KKGKD
name: Middleton, CR
name: Madabhushi, G
name: Haigh, KH
name: Talbot, JP
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: One of the most prevalent causes of bridge failure around the world is scour, the gradual erosion of soil around a bridge foundation due to fast-flowing water. A reliable technique for monitoring scour would help bridge engineers take timely countermeasures to safeguard against failure. Although vibration-based techniques for monitoring structural damage have had limited success, primarily due to insufficient sensitivity, these have tended to focus on the detection of local damage. High natural frequency sensitivity has recently been reported for scour damage. Previous experiments to investigate this have been limited as a result of the cost of full-scale testing and the fact that scaled-down soil structure models tested outside a centrifuge do not adequately simulate full-scale behaviour. This paper describes the development of what is believed to be the first-ever centrifuge-testing programme to establish the sensitivity of bridge natural frequency to scour. For the fundamental mode of vibration, these tests found up to a 40% variation in natural frequency for 30% loss of embedment. Models of three other types of foundation, which represent a shallow pad foundation, a deep pile bent and a deep monopile, were also tested in the centrifuge at different scour levels. The shallow foundation model showed lower frequency sensitivity to scour than the deep foundation models. The level of frequency sensitivity (3.1 to 44% per scour depth equivalent to 30% of embedment of scour) detected in this experiment demonstrates the potential for using natural frequency as an indicator of both local and global scour of bridges, particularly those with deep foundations.
description: 30 pages and 19 figures
Structuring Consumer Preferences with the SEM Method
Creators: name: Rosa, Franco
name: Rosa, Franco
Publisher: name: Unknown
Year: 2002
Subjects: subject: Consumer/Household Economics
subject: Demand
subject: Mean-End Chain
subject: multivariate analysis
subject: Specialty products
subject: Niche market
subject: customer satisfaction
subject: SEM

description: Structuring preferences has been developed with econometric models using functional flexible parametric form and the exploring the perceptions about expressed and latent needs using different multivariate approaches. Purpose of this research is to explore the demand for a new drink using the mean-end chain (MEC) theory and multivariate SEM procedure. The first part is dedicated to description of specialty foods for their capacity to create new niche markets. The MEC theory is introduced to explain the relations between attributes and consumers' perceptions of secondary needs revealed as benefit and values. The second part is dedicated to the empirical investigation of demand of a drink obtained from the "Olivello spinoso" a spontaneous plant. Empirical data were collected with "face to face sensorial test", and used to test the consumer perceptions for the product's attributes and preferences using the SEM approach. Conclusive remarks are in terms of suggestions about the modification of the product's attributes to increase the demand.
Fourier's Law in a Quantum Spin Chain and the Onset of Quantum Chaos
Creators: name: Mejia-Monasterio, Carlos
name: Prosen, Tomaz
name: Casati, Giulio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study heat transport in a nonequilibrium steady state of a quantum interacting spin chain. We provide clear numerical evidence of the validity of Fourier law. The regime of normal conductivity is shown to set in at the transition to quantum chaos.
description: 4 pages, 5 figures, RevTeX
Design and Evaluation of a Modular Robotic Plum Harvesting System Utilising Soft Components
Creators: name: Brown, Jasper
name: Sukkarieh, Salah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The human labour required for tree crop harvesting is a major cost component in fruit production and is increasing. To address this, many existing research works have sought to demonstrate commercially viable robotic harvesting for tree crops, though successful commercial products resulting from these have been few and far between. Systems developed for specific crops such as sweet peppers or apples have shown promise, but the vast majority of cultivar types remain unaddressed and developing a specific system for each one is inefficient. In this work a flexible and modular development platform is presented, this can be used to test specific design choices on different fruit and growing conditions. The system is evaluated in a commercial plum orchard, with no crop modifications. Some existing techniques are found to be counterproductive for plums, while soft robotics and persistent target tracking significantly improve performance. A harvest success rate of 42% was observed, with lower than expected effectiveness based on prior testing with apples. The plum type and growing style pose unique challenges which are examined in the context of system module design choices.
description: 25 pages, 12 figures, 4 tables. Experimental data available at http://data.acfr.usyd.edu.au/Agriculture/PlumHarvesting
International R&D Spillovers and Productivity Growth in the Agricultural Sector A Panel Cointegration Approach
Creators: name: Gutierrez, Luciano
name: Guiterrez, M.
name: Gutierrez, Luciano
name: Guiterrez, M.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Technology spillover
subject: agricultural productivity
subject: panel cointegration

description: This paper analyses, within the new growth theory framework and using panel cointegration techniques, the effect of agricultural international technological spillovers on total factor productivity growth for a sample of 47 countries during the period 1970-1992. The analysis shows that total factor productivity is strongly influenced by domestic as well as foreign public R&D spending in agricultural sector and geographical factors matters. Countries located in temperate zones benefit more than countries located in tropical zones from technological spillovers. Finally, the analysis shows that the rate of return to agricultural R&D spending is higher in tropical countries and this could justify new support and an even greater investment of funds for agricultural R&D for these countries.
Hypotheses of Direct Aid Modulation in Italy
Creators: name: Henke, Roberto
name: Sardone, Roberta
name: Henke, Roberto
name: Sardone, Roberta
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agribusiness
subject: CAP
subject: Direct Aids
subject: Horizontal Regulation
subject: Agri-environmental Measures
subject: RDPs

description: The paper focuses on the implementation of direct aids modulation, as provided for by Regulation 1259/99. After a critical review of the most relevant questions arisen around the effectiveness and the viability of modulation, the paper presents results about its possible application in Italy. In the first part of the paper a special attention is given to the actual distribution of direct aids in Italy, to the number of farms involved and the amount of revenues realised. In the second part four different hypotheses of modulation are tested. In order to evaluate the effectiveness of modulation revenues under the four different hypotheses are compared with the financial resources allotted in Italy to the regional Rural Development Plans (RDPs). While results of modulation are, generally speaking, quite poor in terms of re-distribution of direct aids, there is a more relevant effect in terms of additional resources destined to the RDPs. However, resources are to be destined to measures that receive the highest share of resources within the RDPs. On the contrary, other measures, more genuinely addressing Rural Development and territorial issues within the RDPs, receive a much smaller amount of resources and cannot be funded through modulation. In other words, if the main objective of the modulation is that of shifting resources from the first to the second pillar of the CAP, this is only partially realised, given the mandatory destination of financial resources on measures that are substantially financed and that do not fully address the economic diversification and the development of rural areas.
Search for nearby stars among proper motion stars selected by optical-to-infrared photometry III. Spectroscopic distances of 322 NLTT stars
Creators: name: Scholz, Ralf-Dieter
name: Meusinger, Helmut
name: Jahreiß, Hartmut
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Distance estimates based on low-resolution spectroscopy and Two Micron All Sky Survey (2MASS) J magnitudes are presented for a large sample of 322 nearby candidates from Luyten's NLTT catalogue. Mainly relatively bright (typically 7 < K_s < 11) and red high proper motion stars have been selected according to their 2MASS magnitudes and optical-to-infrared colours (+1 < R-K_s < +7). Some LHS stars previously lacking spectroscopy have also been included. We have classified the majority of the objects as early-M dwarfs (M2-M5). More than 70% of our targets turned out to lie within the 25 pc horizon of the catalogue of nearby stars, with 50 objects placed within 15 pc and 8 objects being closer than 10 pc. Three objects in the 10 pc sample have no previously published spectral type: LP 876-10 (M4), LP 870-65 (M4.5), and LP 869-26 (M5). A large fraction of the objects in our sample (57%) have independent distance estimates, mainly by the recent efforts of Reid and collaborators. Our distance determinations are generally in good agreement with theirs. 11 rather distant (d > 100 pc) objects have also been identified, including a probable halo, but relatively hot (T_eff = 13000 K) white dwarf (LHS 1200) and 10 red dwarfs with extremely large tangential velocities (250 < v_t < 1150 km/s). Altogether, there are 11 red dwarfs (including one within 70 pc) with tangential velocities larger than about 250 km/s. All these objects are suspected to be in fact subdwarfs, if so, their distances would be only about half of our original estimates. The three most extreme objects in that respect are the K and early M dwarfs LP 323-168, LHS 5343 and LP 552-21 with corrected distances between 180 pc and 400 pc and resulting tangential velocities still larger than about 400 km/s.
description: 19 pages, 14 Figures, complete Table 1 available on request from the first author, paper accepted by Astronomy and Astrophysics
Additional file 1 of Mechanisms for co-designing and co-producing health and social care: a realist synthesis
Creators: name: Masterson, Daniel
name: Lindenfalk, Bertil
name: Kjellström, Sofia
name: Robert, Glenn
name: Ockander, Marlene
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1: RAMESES publication standards checklist.
New Constructions in Local Quantum Physics
Creators: name: Schroer, Bert
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Among several ideas which arose as consequences of modular localization there are two proposals which promise to be important for the classification and construction of QFTs. One is based on the observation that wedge-localized algebras may have particle-like generators with simple properties and the second one uses the structural simplification of wedge algebras in the holographic lightfront projection. Factorizable d=1+1 models permit to analyse the interplay between particle-like aspects and chiral field properties of lightfront holography. Pacs 11.10.-z, 11.55.-m
description: 21 pages, conference report, references added
The Dark Side of Coffee Market Power in the German Market for Roasted Coffee
Creators: name: Koerner, Julia
name: Koerner, Julia
Publisher: name: Unknown
Year: 2002
Subjects: subject: Industrial Organization
subject: Market for roasted coffee
subject: Germany
subject: elasticity of conjectural variation
subject: market power
subject: simultaneous equation system
subject: GMM

description: Germany is the second important coffee market in the world, just overshadowed by the United States. Coffee is the most famous beverage in Germany - even more popular than beer. On the supply side dominate few roasters. Market structure influences the market outcome and explains the processors' ability to exercise market power. This paper aims at studying the pricing behavior in the German market for roasted coffee. Respectively, it discusses the impact of three different explanations. First, market power may be due to low price elasticity related to a high level of consumption. Second, pricing behavior may be influenced by the industry concentration. And finally, pricing behavior may be change over time due to exogenous shocks. In particular, the degree of competition has changed as a consequences of a merger. Further, cyclical demand changes induce pricing behavior. Empirical results are derived using data on the aggregate market for roasted coffee in Germany during 1992:1 to 2000:12.
Bemerkungen zu den von lutherischen und reformierten Theologen der EKD verfassten Thesen über den Sinn des Heiligen Abendmahls
Creators: name: D'Espine, Henri
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 8 Nr. 4 (1959): Ökumenische Rundschau, Band 8, Heft 4
Additional file 9 of Hybrid transcriptome sequencing approach improved assembly and gene annotation in Cynara cardunculus (L.)
Creators: name: Puglia, Giuseppe D.
name: Prjibelski, Andrey D.
name: Vitale, Domenico
name: Bushmanova, Elena
name: Schmid, Karl J.
name: Raccuia, Salvatore A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Figure S9. Hierarchical cluster analysis of differentially expressed genes across all the phenological stages (GS, YL, CC1, CC2, CC3, OC1, OC2, OC3 and OC4).
Additional file 7 of Hybrid transcriptome sequencing approach improved assembly and gene annotation in Cynara cardunculus (L.)
Creators: name: Puglia, Giuseppe D.
name: Prjibelski, Andrey D.
name: Vitale, Domenico
name: Bushmanova, Elena
name: Schmid, Karl J.
name: Raccuia, Salvatore A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Figure S7. Quantitative RT-PCR validation of differential gene expression. Relative transcript abundance of 7 differential expressed genes validated by real-time PCR analysis is shown. The fold change in all tissues/stages for each gene was calculated with respect to GS sample. GS, germinating seedling; YL, young leaf; CC1-CC3 closed capitulum stages; OC1-OC4 open inflorescence stages. The error bars represents mean ± standard deviation. Letters indicate only significantly different values according to ANOVA (p value ≤0.05).
Additional file 2 of Mechanisms for co-designing and co-producing health and social care: a realist synthesis
Creators: name: Masterson, Daniel
name: Lindenfalk, Bertil
name: Kjellström, Sofia
name: Robert, Glenn
name: Ockander, Marlene
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 2: Full search strategies for each database.
Spontaneous emission in dispersive media without point-dipole approximation
Creators: name: Scala, Giovanni
name: Pepe, Francesco V.
name: Facchi, Paolo
name: Pascazio, Saverio
name: Słowik, Karolina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a two-level quantum system embedded in a dispersive environment and coupled with the electromagnetic field. We expand the theory of light-matter interactions to include the spatial extension of the system, taken into account through its wavefunctions. This is a development beyond the point-dipole approximation. This ingredient enables us to overcome the divergence problem related to the Green tensor propagator. Hence, we can reformulate the expressions for the spontaneous emission rate and the Lamb shift. In particular, the inclusion of the spatial structure of the atomic system clarifies the role of the asymmetry of atomic states with respect to spatial inversion in these quantities.
description: 22 pages, 8 figures
Fiber orientation in a headbox
Creators: name: Zhang, Xun
Publisher: name: University of British Columbia
Year: 2009

description: The prediction of fiber orientation is a critical parameter for papermakers who wish to control the quality of their paper products. The wet end processes, especially the headbox and the drainage stage on the forming wire, play important roles in determining the fiber orientation characteristics. The current thesis is focused on the headbox flow effect on fiber orientation. It summarizes a mathematical method, which has been developed by other researchers, for predicting the orientation of rigid fibers in dilute suspensions. This method, composed of a turbulent flow simulation model and a fiber motion model, has been applied to predict fiber motion in a headbox. To validate the method, experiments have been conducted by measuring the orientation of dyed nylon fibers moving in a pilot plexiglass headbox. Comparison of experiments and the present numerical simulations of the fiber orientation shows that the simulation method proposed can predict the trend of the statistical orientation distribution of dilute suspensions in headboxes, although there exists obvious deviations between the simulations and experiments. The fibers are seen to be more strongly oriented by the predictions than is observed in the experiments. The anisotropy of the fiber orientation in the headbox flow is caused not only by the mean flow field characteristics, but also by the turbulence characteristics, and the explicit effects of the turbulence are not yet included in the predictions. The simulation method is applied to predict fiber orientations for different headbox geometry, fiber aspect ratio and flow rate. From the prediction method, using only the mean flow effects, a larger contraction ratio is found to produce more concentrated fiber orientation in the flow direction at the exit of the headbox. The channel length, the flow velocity and the fiber aspect ratio within the range of study have little influence on the fiber orientation properties.
Thermodynamic properties of interacting bosons with zero chemical potential
Creators: name: Stashko, O. S.
name: Anchishkin, D. V.
name: Savchuk, O. V.
name: Gorenstein, M. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Thermodynamics properties of an interacting system of bosons are considered at finite temperatures and zero chemical potential within the Skyrme-like mean-field model. An interplay between attractive and repulsive interactions is investigated. As a particular example an equilibrium system of pions is discussed. Several modifications of thermodynamic properties in the considered system are found with increasing a strength of attractive forces. Different types of the first order phase transition are classified. Some of these transitions exist also in the Boltzmann approximation. However, effects of the Bose statistics introduce the notable additional changes in the thermodynamic quantities due to a possibility of the Bose-Einstein condensation.
Multifunctionality: Concepts and Applications to the WTO Negotiations on Agriculture
Creators: name: Bredahl, Maury E.
name: Prestegard, Sjur Spildo
name: Nersten, Nils Kristian
name: Bredahl, Maury E.
name: Prestegard, Sjur Spildo
name: Nersten, Nils Kristian
Publisher: name: Unknown
Year: 2002
Subjects: subject: International Relations/Trade
subject: Non-trade concerns
subject: multifunctionality
subject: externalities
subject: public goods
subject: cultural landscape
subject: optimum subsidy
subject: WTO

description: The ongoing negotiations in the WTO will most certainly lead to a further liberalization of the global agricultural trade. Related to this, many national governments, including Norway, Switzerland and Japan have placed substantial emphasis on the so-called non-trade concerns. In addition to the production of food and fiber, agriculture also provides or may provide national food security, environmental benefits, and viable rural areas. The term "Multifunctional Agriculture" has been applied to describe these additional functions. In this paper, we will show how the economic concepts of "positive and negative externalities" and "public goods" can be used to analyse non-trade concerns and multifunctionality, especially with reference to agriculture's impact on the environment. We conclude the paper with suggestions for international trade rules that can allow countries to meet domestic environmental policy objectives in a minimally trade-distorting manner.
Gains from Trade Liberalization with Imperfectly Competitive World Markets. A Note.
Creators: name: Anania, Giovanni
name: Anania, Giovanni
Publisher: name: Unknown
Year: 2002
Subjects: subject: International Relations/Trade
subject: trade liberalization
subject: imperfect markets
subject: monopoly
subject: monopsony
subject: marketing board

description: The paper shows how analyses assuming perfect competition can yield a distorted estimation of the expected effects of a trade liberalization when market imperfections exist. The analytical framework adopted is very simple and three extreme imperfect market structures are considered. In the first case, the exporting country maximizes its producer and consumer surplus by intervening in the world market. The second market imperfection considered is the existence of a private firm playing the role of "pure middleman" in the world market. Then the case of a producer-owned marketing board which is granted exclusive export authority is addressed. It is shown that under all three scenarios, if perfect competition is assumed when market imperfections exist, the impact of a tariff reduction on prices and volume traded is overestimated. A ranking of the size of such distortions in the three cases analyzed is provided. Finally, it is proved that when a private firm exerts monopoly and monopsony power in the world market, both the importing and the exporting countries may well be better off if, rather than making a move towards trade liberalization, the importing country "compensates" the exporting country by means of a direct transfer.
The Near-Infrared Surface Brightness Distribution of NGC4696
Creators: name: Mur, P. Arnalte
name: Ellis, S. C.
name: Colless, Matthew
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present H-band observations of the elliptical galaxy NGC4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h^{-1}_{70} kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 +/- 1.0 h^{-1}_{70} kpc. There is no need for the extra free parameter allowed by a Sersic law. Allowing for a variation of 0.3% in the sky level, the profile obtained is compatible with data from 2MASS. The profile shows no sign of either a truncation or an extended halo.
description: Accepted for publication in PASA. 5 pages, 3 figures
Additional file 4 of Mechanisms for co-designing and co-producing health and social care: a realist synthesis
Creators: name: Masterson, Daniel
name: Lindenfalk, Bertil
name: Kjellström, Sofia
name: Robert, Glenn
name: Ockander, Marlene
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 4: Examples of four articles.
Energy-momentum balance in quantum dielectrics
Creators: name: Leonhardt, Ulf
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the energy-momentum balance in quantum dielectrics such as Bose-Einstein condensates. In agreement with the experiment [G. K. Campbell et al. Phys. Rev. Lett. 94, 170403 (2005)] variations of the Minkowski momentum are imprinted onto the phase, whereas the Abraham tensor drives the flow of the dielectric. Our analysis indicates that the Abraham-Minkowski controversy has its root in the Roentgen interaction of the electromagnetic field in dielectric media.
Stellar structure of quark stars in a modified Starobinsky gravity
Creators: name: Mathew, Arun
name: Shafeeque, Muhammed
name: Nandy, Malay K.
Publisher: name: arXiv
Year: 2020
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: We propose a form of gravity-matter interaction given by $ωRT$ in the framework of $f(R,T)$ gravity and examine the effect of such interaction in spherically symmetric compact stars. Treating the gravity-matter coupling as a perturbative term on the background of Starobinsky gravity, we develop a perturbation theory for equilibrium configurations. For illustration, we take the case of quark stars and explore their various stellar properties. We find that the gravity-matter coupling causes an increase in the stable maximal mass which is relevant for recent observations on binary pulsars.
New cosmological mass limit on thermal relic axions
Creators: name: Hannestad, S.
name: Mirizzi, A.
name: Raffelt, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of the cosmological large-scale structure provide well-established neutrino mass limits. We extend this argument to thermal relic axions. We calculate the axion thermal freeze-out temperature and thus their cosmological abundance on the basis of their interaction with pions. For hadronic axions we find a new mass limit $m_a<1.05$ eV (95% CL), corresponding to a limit on the axion decay constant of $f_a>5.7\times 10^6$ GeV. For other models this constraint is significantly weakened only if the axion-pion coupling is strongly suppressed. For comparison we note that the same approach leads to $\sum m_ν<0.65$ eV (95% CL) for neutrinos.
description: (17 pages, 12 eps figures)