cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The radiation belts of Jupiter and Saturn
Creators: name: Roussos, Elias
name: Kollmann, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The era of outer planet orbiters (Galileo, Juno and Cassini) is advancing our understanding of how the radiation belts of Jupiter and Saturn are structured, form and evolve well beyond what had been possible during the age of flyby missions and ground-based observations. The nearly two decades-long datasets of these missions, in the context of detailed and long-term observations of Earth's radiation belts, highlight which of the processes that accelerate particles to relativistic kinetic energies and limit their flux intensity can be considered more universal, and thus key for most extraterrestrial magnetospheres, and which reflect the unique aspects of each planet and its magnetospheric system. In this chapter we focus on the in-situ radiation belt observations in the context of theory, simulations and relevant measurements by Earth-based observatories. We describe both the average state and the time variations of Jupiter's and Saturn's radiation belts and associate them with specific physical processes.
description: 24 pages, 4 figures
Coupling curvature to a uniform magnetic field; an analytic and numerical study
Creators: name: Encinosa, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrodinger equation for an electron near an azimuthally symmetric curved surface $Σ$ in the presence of an arbitrary uniform magnetic field $\mathbf B$ is developed. A thin layer quantization procedure is implemented to bring the electron onto $Σ$, leading to the well known geometric potential $V_C \propto h^2-k$ and a second potential that couples $A_N$, the component of $\mathbf A$ normal to $Σ$ to mean surface curvature, as well as a term dependent on the normal derivative of $A_N$ evaluated on $Σ$. Numerical results in the form of ground state energies as a function of the applied field in several orientations are presented for a toroidal model.
description: 12 pages, 3 figures
El seguro de ingresos como instrumento de estabilizacion de las rentas de los agricultores: aplicacion al sector olivarero espanol
Creators: name: Bielza, Maria
name: Garrido, Alberto
name: Sumpsi, Jose Maria
name: Bielza, Maria
name: Garrido, Alberto
name: Sumpsi, Jose Maria
Publisher: name: Unknown
Year: 2002
Subjects: subject: Farm Management
subject: Risk and Uncertainty
subject: agricultural insurance
subject: revenue insurance
subject: agricultural policy

description: RESUMEN - En este artículo se analizan un conjunto de políticas de estabilización de los ingresos de los productores olivareros españoles, entre las que se incluyen seguros de rendimientos e ingresos. En teoría y bajo ciertos supuestos, la estabilización de los ingresos con un seguro de ingresos se puede lograr a un coste inferior al uso combinado de seguros de rendimientos y un seguro de precios. Tras revisar algunas experiencias con seguros de ingresos, se desarrolla una aplicación para comparar, desde la doble perspectiva de eficacia en el gasto público y de reducción de riesgos, distintas políticas de intervención en el sector olivarero, incluyendo las de los pagos actuales, ayuda al árbol, seguro de rendimientos actual y un seguro de ingresos. Los resultados no permiten afirmar que un seguro de ingresos sería un instrumento superior, desde ambas perspectivas pública y privada, al actual sistema de protección que combina el seguro de rendimiento y la ayuda a la producción. Se demuestra que el seguro de ingresos tiene menos necesidad de reaseguro que un seguro de rendimientos, y por tanto es relativamente menos costoso. Finalmente, el análisis provincial muestra que los resultados de cada política analizada difieren sustancialmente en base a los riesgos y potencial productivos propios de cada provincia. SUMMARY - This paper analises a set of revenue stabilisation policies for Spanish olive oil growers, including yield and revenue insurance schemes. In theory and under certain assumptions, revenue insurance provides cheaper revenue stabilisation than a combination of price and yield insurance. After reviewing several revenue insurance experiences, an application is developed to compare various policies that include the actual production aid, tree aid, yield insurance and revenue insurance. The comparison is made taking into account the efficacy of public expenditure's efficiency and the risk reduction potential. Results do not back the assertion that a revenue insurance scheme would be a superior policy than the current policy, that includes a production aid and yield insurance. It is shown that revenue insurance requires less reinsurance protection than yield insurance, making it cheaper on relative terms. Lastly, the analyses at provincial level show that the results of each studied policy are sharply different based on the risks and productivity that characterise each province.
ANALYZING TENURE ARRANGEMENTS AND CROP ROTATIONS USING FARM SIMULATION AND PROBIT ANALYSIS
Creators: name: Perry, Gregory M.
name: Rister, M. Edward
name: Richardson, James W.
name: Grant, Warren R.
name: Perry, Gregory M.
name: Rister, M. Edward
name: Richardson, James W.
name: Grant, Warren R.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries

description: Whole farm simulation analysis and econometric techniques are employed in an analysis of crop rotations and tenure arrangement strategies. The FLIPSIM model is used to analyze a representative Texas Upper Gulf Coast rice and soybean farm. Probit analysis is then used to determine the impact of net cash farm income, land tenure, and crop rotation on probability of survival. Results suggest that, although the simulation model is useful in providing information on the effect at the farm level of following the different strategies, probit results provide greater understanding into the returns and risk inherent to each strategy.
HOUSEHOLD NUTRIENT DEMAND: USE OF CHARACTERISTICS THEORY AND A COMMON ATTRIBUTE MODEL
Creators: name: Eastwood, David B.
name: Brooker, John R.
name: Terry, Danny E.
name: Eastwood, David B.
name: Brooker, John R.
name: Terry, Danny E.
Publisher: name: Unknown
Year: 1986
Subjects: Consumer/Household Economics

description: A characteristics model, which assumes goods generate a common set of attributes but no unique attribute, is described. The model yielded two equations which were estimated. One was a set of hedonic price equations in which the price paid for each food purchased was a function of imputed attribute prices. This set of equations was estimated at the household level. Nutrient demand equations were estimated across households. Imputed prices, income, and household characteristics including location, size, education, age distribution, and race affected nutrient demand levels.
Seismic risk assessment in southwestern British Columbia
Creators: name: Onur, Tuna
Publisher: name: University of British Columbia
Year: 2009

description: Southwestern British Columbia is exposed to the highest seismic risk in Canada. Estimation of the damage to structures as a consequence of a major earthquake is essential for emergency and risk management. In this thesis, first the probability and distribution of seismic damage to structural and non-structural components of buildings were calculated for three cities in southwestern BC, Vancouver, Victoria and New Westminster, using conventional damage estimation procedures. This involved estimation of the seismic hazard in the area, compilation of building databases for these cities, and the calculation and mapping of the damage distribution using Geographic Information Systems. The building classification scheme with 31 prototypes and the damage matrices relating the expected level of damage for each of these prototypes at different levels of ground shaking were available to be used in these analyses. Among the three case studies, the highest risk was observed in the City of Victoria, in which about 35% of the blocks within the study area were estimated to have damage levels between 10% and 30% of the replacement cost. The estimated damage level in Vancouver stayed generally in the 5% to 10% range, however, it went up to the 10%- 20% range in quite a few number of blocks. About half of Victoria lies on relatively soft soil that is expected to amplify the peak ground accelerations by about 1.5 (if the earthquake dominantly contains low frequencies), which in turn increases the expected damage up to higher than 30% in many blocks. Direct monetary losses due to structural and non-structural damage to buildings were also estimated following the damage assessment. Next, an alternative damage estimation method was investigated and the necessary parameters to apply this method to buildings constructed in BC were developed for three sample building types. The damage levels obtained from the two methods were compared and differences were discussed.
Anisotropic diffusion limited aggregation in three dimensions - universality and non-universality
Creators: name: Goold, Nicholas R.
name: Somfai, Ellak
name: Ball, Robin C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We explore the macroscopic consequences of lattice anisotropy for Diffusion Limited Aggregation (DLA) in three dimensions. Simple cubic and BCC lattice growths are shown to approach universal asymptotic states in a coherent fashion, and the approach is accelerated by the use of noise reduction. These states are strikingly anisotropic dendrites with a rich hierarchy of structure. For growth on an FCC lattice, our data suggest at least two stable fixed points of anisotropy, one matching the BCC case. Hexagonal growths, favouring six planar and two polar directions, appear to approach a line of asymptotic states with continuously tunable polar anisotropy. The more planar of these growths visually resemble real snowflake morphologies. Our simulations use a new and dimension-independent implementation of the Diffusion Limited Aggregation (DLA) model. The algorithm maintains a hierarchy of sphere-coverings of the growth, supporting efficient random walks onto the growth by spherical moves. Anisotropy was introduced by restricting growth to certain preferred directions.
description: 13 pages, 10 figures, corrected axis label on one figure
Nature of non-magnetic strongly-correlated state in delta-plutonium
Creators: name: Pourovskii, L. V.
name: Katsnelson, M. I.
name: Lichtenstein, A. I.
name: Havela, L.
name: Gouder, T.
name: Wastin, F.
name: Shick, A. B.
name: Drchal, V.
name: Lander, G. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ab-initio relativistic dynamical mean-field theory is applied to resolve the long-standing controversy between theory and experiment in the "simple" face-centered cubic phase of plutonium called delta-Pu. In agreement with experiment, neither static nor dynamical magnetic moments are predicted. In addition, the quasiparticle density of states reproduces not only the peak close to the Fermi level, which explains the large coefficient of electronic specific heat, but also main 5f features observed in photoelectron spectroscopy.
description: 9 pages, 3 figures
title: Mapping the Way Forward: Spatial Data Inventory and Insights for Marine Planning in Guam
Creators: name: Carlton, Jessica
name: Wilson, Rich
name: Wylie, Meagan
name: Carter, Eliza
name: Pinkard-Meier, Deanna
name: Pendleton, Frank
name: Rudolph, Rockne
name: Miller, Jennifer
name: Morris, James
Publisher: name: NOAA National Centers for Coastal Ocean Science
publisherIdentifier: https://ror.org/05ba43f71
publisherIdentifierScheme: ROR
Year: 2025

description: NOAA technical memorandum NOS NCCOS ; 353
description: NCCOS and BOEM are working to build marine spatial planning capacity in the Pacific region to inform potential leasing and planning of offshore wind energy (OSW) in Guam. Additionally, marine spatial planning, especially for island communities like Guam and the Northern Marianas, holds great promise to assist coastal managers, indigenous groups, environmental organizations, and industry with planning for future development of the blue economy.
Cooling of Akmal-Pandharipande-Ravenhall neutron star models
Creators: name: Gusakov, M. E.
name: Kaminker, A. D.
name: Yakovlev, D. G.
name: Gnedin, O. Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the cooling of superfluid neutron stars whose cores consist of nucleon matter with the Akmal-Pandharipande-Ravenhall equation of state. This equation of state opens the powerful direct Urca process of neutrino emission in the interior of most massive neutron stars. Extending our previous studies (Gusakov et al. 2004a, Kaminker et al. 2005), we employ phenomenological density-dependent critical temperatures T_{cp}(ρ) of strong singlet-state proton pairing (with the maximum T_{cp}^{max} \sim 7e9 K in the outer stellar core) and T_{cnt}(ρ) of moderate triplet-state neutron pairing (with the maximum T_{cnt}^{max} \sim 6e8 K in the inner core). Choosing properly the position of T_{cnt}^{max} we can obtain a representative class of massive neutron stars whose cooling is intermediate between the cooling enhanced by the neutrino emission due to Cooper pairing of neutrons in the absence of the direct Urca process and the very fast cooling provided by the direct Urca process non-suppressed by superfluidity.
description: 9 pages, 6 figures; accepted for publication in MNRAS
FUTURES MARKETS AND FIRM DECISIONS UNDER PRICE, PRODUCTION, AND FINANCIAL UNCERTAINTY
Creators: name: Alexander, Vickie J.
name: Musser, Wesley N.
name: Mason, George
name: Alexander, Vickie J.
name: Musser, Wesley N.
name: Mason, George
Publisher: name: Unknown
Year: 1986
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Incorporation of futures markets into the theory of the firm under uncertainty has received considerable attention in risk management. A theoretical model of optimal firm decisions in cash and futures markets considering price, production, and financial risks is presented. Production and marketing strategies for corn and soybeans in Georgia and Illinois are analyzed to determine the optimal amount of futures contracting which may be a hedge or a speculative position. A partial hedge is optimal for most situations for risk averse producers when the amount hedge is variable. With fixed quantity transactions, speculative and cash positions, but not hedging, tend to be E-V efficient.
Chiral Spin Spirals at the Surface of the van der Waals Ferromagnet Fe$_3$GeTe$_2$
Creators: name: Meijer, Mariëlle J.
name: Lucassen, Juriaan
name: Duine, Rembert A.
name: Swagten, Henk J. M.
name: Koopmans, Bert
name: Lavrijsen, Reinoud
name: Guimarães, Marcos H. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Topologically protected magnetic structures provide a robust platform for low power consumption devices for computation and data storage. Examples of these structures are skyrmions, chiral domain walls, and spin spirals. Here we use scanning electron microscopy with polarization analysis to unveil the presence of chiral counterclockwise Néel spin spirals at the surface of a bulk van der Waals ferromagnet Fe$_3$GeTe$_2$ (FGT), at zero magnetic field. These Néel spin spirals survive up to FGT's Curie temperature $T_\mathrm{C}= 220 \mathrm{~K}$, with little change in the periodicity $p=300 \mathrm{~nm}$ of the spin spiral throughout the studied temperature range. The formation of a spin spiral showing counterclockwise rotation strongly suggests the presence of a positive Dzyaloshinskii-Moriya interaction in FGT, which provides the first steps towards the understanding of the magnetic structure of FGT. Our results additionally pave the way for chiral magnetism in van der Waals materials and their heterostructures.
A MICROCOMPUTER PACKAGE TO TEACH THE SIMPLEX ALGORITHM
Creators: name: Beilock, Richard P.
name: Correal, Catherine
name: Drummond, H. Evan
name: Pheasant, Jim W.
name: Wolfe, Wayne
name: Beilock, Richard P.
name: Correal, Catherine
name: Drummond, H. Evan
name: Pheasant, Jim W.
name: Wolfe, Wayne
Publisher: name: Unknown
Year: 1986
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Basic features of a microcomputer package, BCDP, which is an auto-tutorial designed to teach the Simplex algorithm are described. The package may be used to argument lecture and text materials in introductory linear programming courses or as a review for advanced math programming courses. Preliminary evaluations of the effectiveness of the program to augment classroom instruction are very positive.
Quantum motion of a squeezed mechanical oscillator attained via a optomechanical experiment
Creators: name: Vezio, P.
name: Chowdhury, A.
name: Bonaldi, M.
name: Borrielli, A.
name: Marino, F.
name: Morana, B.
name: Prodi, G. A.
name: Sarro, P. M.
name: Serra, E.
name: Marin, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally investigate a mechanical squeezed state realized in a parametrically-modulated membrane resonator embedded in an optical cavity. We demonstrate that a quantum characteristic of the squeezed dynamics can be revealed and quantified even in a moderately warm oscillator, through the analysis of motional sidebands. We provide a theoretical framework for quantitatively interpreting the observations and present an extended comparison with the experiment. A notable result is that the spectral shape of each motional sideband provides a clear signature of a quantum mechanical squeezed state without the necessity of absolute calibrations, in particular in the regime where residual fluctuations in the squeezed quadrature are reduced below the zero-point level.
FARM LEVEL CORN ACREAGE RESPONSE ESTIMATION
Creators: name: Nutt, Perry J.
name: Reed, Michael R.
name: Skees, Jerry R.
name: Nutt, Perry J.
name: Reed, Michael R.
name: Skees, Jerry R.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries

description: This study reports results of an acreage supply equation using individual farm data and develops implications for bias introduced by use of aggregate data. The analysis shows that use of aggregate acreage response models underestimates the absolute value of price elasticities and the lagged adjustment process. Further, aggregated analyses cannot incorporate some variables found to be important in explaining from level acreage response.
Controlling orbital moment and spin orientation in CoO layers by strain
Creators: name: Csiszar, S. I.
name: Haverkort, M. W.
name: Hu, Z.
name: Tanaka, A.
name: Hsieh, H. H.
name: Lin, H. -J.
name: Chen, C. T.
name: Hibma, T.
name: Tjeng, L. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have observed that CoO films grown on different substrates show dramatic differences in their magnetic properties. Using polarization dependent x-ray absorption spectroscopy at the Co L$_{2,3}$ edges, we revealed that the magnitude and orientation of the magnetic moments strongly depend on the strain in the films induced by the substrate. We presented a quantitative model to explain how strain together with the spin-orbit interaction determine the 3d orbital occupation, the magnetic anisotropy, as well as the spin and orbital contributions to the magnetic moments. Control over the sign and direction of the strain may therefore open new opportunities for applications in the field of exchange bias in multilayered magnetic films.
A Multi-wavelength search for Black Widows and Redbacks counterparts of candidate $γ$-ray millisecond pulsars
Creators: name: Braglia, C.
name: Mignani, R. P.
name: Belfiore, A.
name: Marelli, M.
name: Israel, G. L.
name: Novara, G.
name: De Luca, A.
name: Tiengo, A.
name: Parkinson, P. M. Saz
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The wealth of detections of millisecond pulsars (MSPs) in $γ$-rays by {\em Fermi} has spurred searches for these objects among the several unidentified $γ$-ray sources. Interesting targets are a sub-class of binary MSPs, dubbed "Black Widows" (BWs) and "Redbacks" (RBs), which are in orbit with low-mass non-degenerate companions fully or partially ablated by irradiation from the MSP wind. These systems can be easily missed in radio pulsar surveys owing to the eclipse of the radio signal by the intra-binary plasma from the ablated companion star photosphere, making them better targets for multi-wavelength observations. We used optical and X-ray data from public databases to carry out a systematic investigation of all the unidentified $γ$-ray sources from the Fermi Large Area Telescope (LAT) Third Source Catalog (3FGL), which have been pre-selected as likely MSP candidates according to a machine-learning technique analysis. We tested our procedure by recovering known binary BW/RB identifications and searched for new ones, finding possible candidates. At the same time, we investigated previously proposed BW/RB identifications and we ruled out one of them based upon the updated $γ$-ray source coordinates.
description: 22 pages, 14 figures, 21 pages - This manuscript is based on the MSc Thesis work of C. Braglia, defended on April 2020 at the University of Milan, accepted for publication in MNRAS
The Distance to the Perseus Spiral Arm in the Milky Way
Creators: name: Xu, Y.
name: Reid, M. J.
name: Zheng, X. W.
name: Menten, K. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have measured the distance to the massive star-forming region W3OH in the Perseus spiral arm of the Milky Way to be 1.95 $\pm$ 0.04 kilo-parsecs ($5.86\times10^{16}$ km). This distance was determined by triangulation, with the Earth's orbit as one segment of a triangle, using the Very Long Baseline Array. This resolves a long-standing problem of a factor of two discrepancy between different techniques to determine distances. The reason for the discrepancy is that this portion of the Perseus arm has anomalous motions. The orientation of the anomalous motion agrees with spiral density-wave theory, but the magnitude is somewhat larger than most models predict.
description: 19 pages, 4 figures, Science Express December 8, 2005
MEASURING THE PRODUCTIVITY OF CAPITAL IN UNITED STATES AGRICULTURE
Creators: name: Gustafson, Cole R.
name: Gustafson, Cole R.
Publisher: name: Unknown
Year: 1986
Subjects: Agricultural Finance

description: The agricultural sector has operated in a period of high real interest rates for over half a decade. Some are concerned that this has limited capital availability and stagnated the historic capital for labor substitution occurring in the sector. This study proposes new procedures for estimating the aggregate production function of United States agriculture. Improvements include incorporation of total returns and revised measures of both durable and nondurable capital inputs. Results indicate increasing capital productivity has occurred, but encouraging further capital substitution may not benefit agricultural producers.
Additional file 3 of Dose response relationship of cumulative anticholinergic exposure with incident dementia: validation study of Korean anticholinergic burden scale
Creators: name: Yewon Suh
name: Ah, Young-Mi
name: Euna Han
name: Kwanghee Jun
name: Sunghee Hwang
name: Choi, Kyung Hee
name: Lee, Ju-Yeun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Additional file 3. List of medication with sedation as a prominent side effects.
Ménard, Jacques: De la Gnose au Manichéisme, Paris 1986
Creators: name: Gessel, Wilhelm
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 71 (1987): Oriens christianus, Band 71
Pressure induced complexity in a lithium monolayer
Creators: name: Rodriguez-Prieto, A
name: Bergara, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Light alkali metals have usually been considered as simple metals due to their monovalency and high conductivity. In these metals ionic pseudopotentials are weak and the nearly free electron model (NFE) becomes quite accurate at normal conditions. However, very recent experiments have shown that at high pressures their electronic properties deviate radically from the NFE model and even become unexpected good superconductors. In this work we present ab initio calculations to analyze the deviation from simplicity in a lithium monolayer (ML) when pressure is applied. We have seen that as a result of the increasing non-local character of the atomic pseudopotential with increasing pressure, the surprising half filling Hubbard-type nesting observed in the Fermi line can explain the interesting complex behavior in lithium ML, induced by its correlated structural, electronic and even magnetic properties.
description: 5 pages and 10 figures
An in-depth reanalysis of the alleged type Ia supernova progenitor Henize 2-428
Creators: name: Reindl, N.
name: Schaffenroth, V.
name: Bertolami, M. M. Miller
name: Geier, S.
name: Finch, N. L.
name: Barstow, M. A.
name: Casewell, S. L.
name: Taubenberger, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The nucleus of the planetary nebula Hen2-428 is a short orbital-period (4.2h), double-lined spectroscopic binary, whose status as a potential supernova type Ia progenitor has raised some controversy in the literature. With the aim of resolving this debate, we carried out an in-depth reanalysis of the system. Our approach combines a refined wavelength calibration, thorough line-identifications, improved radial-velocity measurements, non-LTE spectral modeling, as well as multi-band light-curve fitting. Our results are then discussed in view of state-of-the-art stellar evolutionary models. Besides systematic zero-point shifts in the wavelength calibration of the OSIRIS spectra which were also used in the previous analysis of the system, we found that the spectra are contaminated with diffuse interstellar bands. Our Voigt-profile radial velocity fitting method, which considers the additional absorption of these diffuse interstellar bands, reveals significantly lower masses ($M_1=0.66\pm0.11M_\odot$ and $M_2=0.42\pm0.07M_\odot$) than previously reported and a mass ratio that is clearly below unity. Our spectral and light curve analyses lead to consistent results, however, we find higher effective temperatures and smaller radii than previously reported. Moreover, we find that the red-excess that was reported before to prove to be a mere artifact of an outdated reddening law that was applied. Our work shows that blends of HeII 5412A with diffuse interstellar bands have led to an overestimation of the previously reported dynamical masses of Hen2-428. The merging event of Hen2-428 will not be recognised as a supernova type Ia, but most likely leads to the formation of a H-deficient star. We suggest that the system was formed via a first stable mass transfer episode, followed by common envelope evolution, and it is now composed of a post-early AGB star and a reheated He-core white dwarf.
description: 14 pages, published in A&A, https://www.aanda.org/articles/aa/abs/2020/06/aa38117-20/aa38117-20.html
Towards Designing Systems with Large Number of Antennas for Range Extension in Ground-to-Air Communications
Creators: name: Qureshi, Haneya Naeem
name: Imran, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Providing broadband connectivity to airborne systems using ground based cellular networks is a promising solution as it offers several advantages over satellite-based solutions. However, limited range of terrestrial base stations is a key challenge in full realization of this approach. This paper addresses this problem by proposing a mathematical framework for range extension leveraging large number of antennas at the base station. In contrast to prior works where range is not considered as a design parameter, we model the signal to noise ratio as a function of both number of antennas as well as the range in line-of-sight ground-to-air systems. This allows us to derive analytical expressions to determine the number of antennas required to increase range in different frequency bands and tracking and non tracking scenarios.
description: Published in IEEE PIMRC 2018
Traffic accident modeling : statistical issues and safety applications
Creators: name: Sawalha, Ziad A.
Publisher: name: University of British Columbia
Year: 2009

description: The success of road safety improvement programs and studies in reducing traffic accidents hinges upon the existence of reliable techniques for the estimation of road safety levels. Accident prediction models are rapidly becoming the preferred mathematical tools for estimating road safety. However, several statistical problems related to accident models need to be addressed. Additionally, there is potential for new model applications that constitute reliable methodologies for conducting certain existing safety studies that currently use earlier inaccurate techniques. The main objective of this thesis is to solve several statistical problems related to accident models and to provide new safety applications of these models. This thesis presents a detailed discussion of several statistical problems related to accident models, namely the problems of model building, identification and removal of model outliers, and recalibration and testing of transferred models. The thesis devises statistical procedures for model building and conducting outlier analysis and presents sufficient evidence in defense of the validity of these procedures. On the issue of model transferability, the thesis presents a statistical method that can be used to test whether an accident model produces reliable safety estimates when transferred for use in different time periods and different regions of space. The thesis also proposes a new procedure for recalibrating transferred models to better suit local conditions. The thesis presents three new safety applications of accident prediction models. The first is a methodology of ranking hazardous locations for priority of treatment. The thesis pinpoints effective ranking criteria and employs accident models in their measurement. The second application is a countermeasure-based procedure for identifying hazardous road locations. It calls for the use of pattern-specific accident models to identify locations that are hazardous with respect to accident patterns that can be targeted by known countermeasures. As such, it represents a cost-effective method of black spot treatment. The third application is a cross-sectional method for evaluating the safety benefits of road improvement measures prior to their implementation. This prior evaluation is necessary since alternative improvement measures are usually considered and must be economically evaluated to identify and implement the alternative possessing the highest benefit-cost ratio.
Duodepth: Static Gesture Recognition Via Dual Depth Sensors
Creators: name: Chugunov, Ilya
name: Zakhor, Avideh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Static gesture recognition is an effective non-verbal communication channel between a user and their devices; however many modern methods are sensitive to the relative pose of the user's hands with respect to the capture device, as parts of the gesture can become occluded. We present two methodologies for gesture recognition via synchronized recording from two depth cameras to alleviate this occlusion problem. One is a more classic approach using iterative closest point registration to accurately fuse point clouds and a single PointNet architecture for classification, and the other is a dual Point-Net architecture for classification without registration. On a manually collected data-set of 20,100 point clouds we show a 39.2% reduction in misclassification for the fused point cloud method, and 53.4% for the dual PointNet, when compared to a standard single camera pipeline.
description: 26th International Conference on Image Processing
Additional file 2 of Dose response relationship of cumulative anticholinergic exposure with incident dementia: validation study of Korean anticholinergic burden scale
Creators: name: Yewon Suh
name: Ah, Young-Mi
name: Euna Han
name: Kwanghee Jun
name: Sunghee Hwang
name: Choi, Kyung Hee
name: Lee, Ju-Yeun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Additional file 2. The ICD-10 codes used for analysis.
A METHODOLOGY FOR ESTIMATING INTEGRATED FORECASTING/DECISION MODEL PARAMETERS USING LINEAR PROGRAMMING
Creators: name: Trapp, James N.
name: Trapp, James N.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries

description: A linear programming algorithm is used to estimate the parameters of a wheat storage decision model. This approach allows objective functions other than minimization of error squared to be used. It is demonstrated that by using a profit maximization objective function, an improved wheat storage decision model can be developed.
The Z(2) gauge model revisited: as a possible testbed for the confinement and chiral symmetry phase transition of SU(2) lattice gauge theory
Creators: name: Hioki, Shinji
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Adopting the cooling technique to smooth the discontinuous Z(2) lattice gauge field, we found that on SU(2) gauge configurations obtained by this smoothing there exists clear discontinuity of the topological property at almost the same point as the confinement-deconfinement phase transition of the original Z(2) gauge theory. This observation suggests the possibility that Z(2) gauge model might be a testbed for analyzing the relation between the confinement and the chiral phase transition in which the topological objects are believed to play crucial roles.
description: Talk at Lattice 2006; to be published in Proceedings Of Science as POS(LAT2006)067. 7 pages; 2 figures
AN INVESTIGATION OF THE RELATIONSHIP BETWEEN CONSTRAINT OMISSION AND RISK AVERSION IN FIRM RISK PROGRAMMNG MODELS
Creators: name: Musser, Wesley N.
name: McCarl, Bruce A.
name: Smith, G. Scott
name: Musser, Wesley N.
name: McCarl, Bruce A.
name: Smith, G. Scott
Publisher: name: Unknown
Year: 1986
Subjects: Risk and Uncertainty

description: A model with omitted resource constraints is suggested as an alternative to a risk aversion model for explaining economic behavior. This paper uses two standard mathematical programming models to further explore this issue. One model is a standard profit maximization linear programming model and the other is a risk averse quadratic programming model with part of the constraints deleted. Theoretical investigation of these models demonstrates that risk aversion can substitute for omitted resource constraints. A small empirical model is then solved under both formulations. With resource constraints deleted, positive risk aversion is necessary to obtain a similar enterprise organization as under profit maximization with complete constraints. These two solutions are then interpreted with the theoretical optimality conditions.
A TARGET MOTAD ANALYSIS OF A CROP AND LIVESTOCK FARM IN JEFFERSON COUNTY, FLORIDA
Creators: name: Zimet, David J.
name: Spreen, Thomas H.
name: Zimet, David J.
name: Spreen, Thomas H.
Publisher: name: Unknown
Year: 1986
Subjects: Farm Management

description: An analysis of a typical crop and livestock farm in North Florida is presented. The analysis incorporates the potential competition and complementarity among crop and beef cattle enterprises. A Target MOTAD model is developed to account for risk in a decision framework. The results indicate that when income risk is ignored, peanuts, watermelon, and stocker cattle are the only enterprises included in the optimal solution. When income risk is heavily weighted, the optimal solution includes peanuts, watermelon, stocker cattle, cow-calf, and irrigated soybeans. The results suggest that the persistence of cow-calf production may be explained as a stabilizer of income.
An infrared study of the high-mass, multi-stage star-forming region IRAS~12272-6240
Creators: name: Tapia, Mauricio
name: Persi, Paolo
name: Roth, Miguel
name: Elia, Davide
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: IRAS 12272-6240 is a complex star forming region with a compact massive dense clump and several associated masers, located at a well-determined distance of $d=9.3$ kpc from the Sun. For this study, we obtained sub-arcsec broad- and narrow-band near-IR imaging and low-resolution spectroscopy with the Baade/Magellan telescope and its camera PANIC. Mosaics of size $2 \times 2$ square arcmin in the $JHK_s$ bands and with narrow-band filters centred in the 2.12 $μ$m H$_2$ and 2.17 $μ$m Br$γ$ lines were analysed in combination with HI-GAL/{\sl Herschel} and archive IRAC/{\sl Spitzer} and {\sl WISE} observations. We found that the compact dense clump houses two Class~I YSOs that probably form a 21 kAU-wide binary system. Its combined 1 to 1200 $μ$m SED is consistent with an O9V central star with a $10^{-2} M_\odot$ disc and a $1.3 \times 10^4 M_\odot$ dust envelope. Its total luminosity is $8.5 \times 10^4 L_\odot$. A series of shocked H$_2$ emission knots are found in its close vicinity, confirming the presence of outflows. IRAS 12272-6240 is at the centre of an embedded cluster with a mean age of 1 Myr and 2.6 pc in size that contains more than 150 stars. At its nucleus, we found a more compact and considerably younger sub-cluster containing the YSOs. We also identified and classified the O-type central stars of two dusty radio/IR HII regions flanking the protostars. Our results confirm that these elements form a single giant young complex where massive star formation processes started some 1 million years ago and is still active.
description: 14 pages, 13 figures, Accepted by MNRAS
Additional file 1 of Dose response relationship of cumulative anticholinergic exposure with incident dementia: validation study of Korean anticholinergic burden scale
Creators: name: Yewon Suh
name: Ah, Young-Mi
name: Euna Han
name: Kwanghee Jun
name: Sunghee Hwang
name: Choi, Kyung Hee
name: Lee, Ju-Yeun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Additional file 1. Anticholinergic medication list.
High-field ESR studies of the quantum spin magnet CaCu2O3
Creators: name: Goiran, M.
name: Costes, M.
name: Broto, J. M.
name: Chou, F. C.
name: Klingeler, R.
name: Arushanov, E.
name: Drechsler, S. -L.
name: Büchner, B.
name: Kataev, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report an electron spin resonance (ESR) study of the s=1/2-Heisenberg pseudo-ladder magnet CaCu2O3 in pulsed magnetic fields up to 40 T. At sub-Terahertz frequencies we observe an ESR signal originating from a small amount of uncompensated spins residing presumably at the imperfections of the strongly antiferromagnetically correlated host spin lattice. The data give evidence that these few percent of ''extra'' spin states are coupled strongly to the bulk spins and are involved in the antiferromagnetic ordering at T_N = 25 K. By mapping the frequency/resonance field diagram we have determined a small gap for magnetic excitations below T_N of the order of 0.3 - 0.8 meV. Such a small value of the gap explains the occurrence of the spin-flop transition in CaCu2O 3 at weak magnetic fields H_{sf} ~ 3 T. Qualitative changes of the ESR response with increasing the field strength give indications that strong magnetic fields reduce the antiferromagnetic correlations and may even suppress the long-range magnetic order in CaCu2O3. ESR data support scenarios with a significant role of the ''extra'' spin states for the properties of low-dimensional quantum magnets.
description: revised version, accepted for publication in the New Journal of Physics
Structure of plastically compacting granular packings
Creators: name: Uri, Lina
name: Walmann, Thomas
name: Alberts, Luc
name: Dysthe, Dag Kristian
name: Feder, Jens
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The developing structure in systems of compacting ductile grains were studied experimentally in two and three dimensions. In both dimensions, the peaks of the radial distribution function were reduced, broadened, and shifted compared with those observed in hard disk- and sphere systems. The geometrical three--grain configurations contributing to the second peak in the radial distribution function showed few but interesting differences between the initial and final stages of the two dimensional compaction. The evolution of the average coordination number as function of packing fraction is compared with other experimental and numerical results from the literature. We conclude that compaction history is important for the evolution of the structure of compacting granular systems.
description: 12 pages, 12 figures
Duality invariance of non-anticommutative N=1/2 supersymmetric U(1) gauge theory
Creators: name: Dayi, O. F.
name: Kelleyane, L. T.
name: Ulker, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A parent action is introduced to formulate (S-) dual of non-anticommutative N=1\2 supersymmetric U(1) gauge theory. Partition function for parent action in phase space is utilized to establish the equivalence of partition functions of the theories which this parent action produces. Thus, duality invariance of non-anticommutative N=1\2 supersymmetric U(1) gauge theory follows. The results which we obtained are valid at tree level or equivalently at the first order in the nonanticommutativity parameter C_{μν}.
description: 12 pages, some comments and references are added. To appear in JHEP
Population development in rural Switzerland: Do sectors matter?
Creators: name: Mann, Stefan
name: Mann, Stefan
Publisher: name: Unknown
Year: 2006
Subjects: Community/Rural/Urban Development
Industrial Organization

description: The paper approaches the question of the role of the three different sectors in rural population development. A regression with data from 1606 rural Swiss municipalities shows that activity in the farming sector enhances population growth to a greater degree than activity in the industrial sector. Employment in the service sector was not found to sustain population growth in rural municipalities, whereas commuting possibilities had a strongly stabilising impact. Other important determinants were wealth, the number of holiday homes and demographic factors. A qualitative study of four rural municipalities largely confirmed the findings of the regression, but also showed the importance of non-economic factors influencing the relative attractiveness of a rural municipality.
Cosmo-dynamics and dark energy with non-linear equation of state: a quadratic model
Creators: name: Ananda, Kishore N.
name: Bruni, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the general relativistic dynamics of Robertson-Walker models with a non-linear equation of state (EoS), focusing on the quadratic case P = P_0 + αρ+ βρ^2. This may be taken to represent the Taylor expansion of any arbitrary barotropic EoS, P(ρ). With the right combination of P_0, αand β, it serves as a simple phenomenological model for dark energy, or even unified dark matter. Indeed we show that this simple model for the EoS can produce a large variety of qualitatively different dynamical behaviors that we classify using dynamical systems theory. An almost universal feature is that accelerated expansion phases are mostly natural for these non-linear EoS's. These are often asymptotically de Sitter thanks to the appearance of an effective cosmological constant. Other interesting possibilities that arise from the quadratic EoS are closed models that can oscillate with no singularity, models that bounce between infinite contraction/expansion and models which evolve from a phantom phase, asymptotically approaching a de Sitter phase instead of evolving to a "Big Rip". In a second paper we investigate the effects of the quadratic EoS in inhomogeneous and anisotropic models, focusing in particular on singularities.
description: 25 pages, 21 figures
Robust Rhythmogenesis in the Gamma Band via Spike Timing Dependent Plasticity
Creators: name: Socolovsky, Gabi
name: Shamir, Maoz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Rhythmic activity in the gamma band (30-100Hz) has been observed in numerous animal species ranging from insects to humans, and in relation to a wide range of cognitive tasks. Various experimental and theoretical studies have investigated this rhythmic activity. The theoretical efforts have mainly been focused on the neuronal dynamics, under the assumption that network connectivity satisfies certain fine-tuning conditions required to generate gamma oscillations. However, it remains unclear how this fine tuning is achieved. Here we investigated the hypothesis that spike timing dependent plasticity (STDP) can provide the underlying mechanism for tuning synaptic connectivity to generate rhythmic activity in the gamma band. We addressed this question in a modeling study. We examined STDP dynamics in the framework of a network of excitatory and inhibitory neuronal populations that has been suggested to underlie the generation of gamma. Mean field Fokker Planck equations for the synaptic weights dynamics are derived in the limit of slow learning. We drew on this approximation to determine which types of STDP rules drive the system to exhibit gamma oscillations, and demonstrate how the parameters that characterize the plasticity rule govern the rhythmic activity. Finally, we propose a novel mechanism that can ensure the robustness of self-developing processes, in general and for rhythmogenesis in particular.
description: 9 pages with 4 figures