cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anomalous Orbital Characteristics of the AQ Col (EC 05217-3914) System
Creators: name: Otani, T.
name: Lynas-Gray, A. E.
name: Kilkenny, D.
name: Koen, C.
name: von Hippel, T.
name: Uzundag, M.
name: Vuckovic, M.
name: Pennock, C. M.
name: Silvotti, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: AQ Col (EC 05217-3914) is one of the first detected pulsating subdwarf B (sdB) stars and has been considered to be a single star. Photometric monitoring of AQ Col reveals a pulsation timing variation with a period of 486 days, interpreted as time-delay due to reflex motion in a wide-binary formed with an unseen companion with expected mass larger than 1.05 $M_\odot$. The optical spectra and color-Magnitude diagram of the system suggested that the companion is not a main sequence star but a white dwarf or neutron star. The pulsation timing variation also shows that the system has an eccentricity of 0.424, which is much larger than any known sdB long period binary system. That might be due to the existence of another short period companion to the sdB star. Two optical spectra obtained on 1996 December $5^{\rm th}$ show a radial velocity change of 49.1~km/s in 46.1 minutes, which suggests the hot subdwarf in the wide-binary is itself a close-binary formed with another unseen white dwarf or neutron star companion; if further observations show this interpretation to be correct, AQ Col is an interesting triple system worthy of further study.
description: accepted to ApJ. 26 pages, 10 figures
Displacement fields of point defects in two-dimensional colloidal crystals
Creators: name: Lechner, Wolfgang
name: Schöll-Paschinger, Elisabeth
name: Dellago, Christoph
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Point defects such as interstitials, vacancies, and impurities in otherwise perfect crystals induce complex displacement fields that are of long-range nature. In the present paper we study numerically the response of a two-dimensional colloidal crystal on a triangular lattice to the introduction of an interstitial particle. While far from the defect position the resulting displacement field is accurately described by linear elasticity theory, lattice effects dominate in the vicinity of the defect. In comparing the results of particle based simulations with continuum theory, it is crucial to employ corresponding boundary conditions in both cases. For the periodic boundary condition used here, the equations of elasticity theory can be solved in a consistent way with the technique of Ewald summation familiar from the electrostatics of periodically replicated systems of charges and dipoles. Very good agreement of the displacement fields calculated in this way with those determined in particle simulations is observed for distances of more than about 10 lattice constants. Closer to the interstitial, strongly anisotropic displacement fields with exponential behavior can occur for certain defect configurations. Here we rationalize this behavior with a simple bead-spring that relates the exponential decay constant to the elastic constants of the crystal.
title: On the influence of ϰ-carbides on the low-cycle fatigue behavior of high-Mn light-weight steels
Creators: name: Wegener, Thomas
name: Haase, Christian
name: Liehr, Alexander
name: Niendorf, Thomas
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: Fe-MnAl-C
subject: light-weight steel
subject: low-cycle fatique
subject: ϰ-carbides
subject: microstructure
subject: 600
subject: 660
subject: Legierung
subject: Leichtbau
subject: Stahl
subject: Ermüdung bei niedrigen Lastspielzahlen
subject: Carbide
subject: Mikrostruktur
subject: Mechanische Eigenschaft

description: © This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Switching magnetic vortex core by a single nanosecond current pulse
Creators: name: Yamada, Keisuke
name: Kasai, Shinya
name: Nakatani, Yoshinobu
name: Kobayashi, Kensuke
name: Ono, Teruo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In a ferromagnetic nanodisk, the magnetization tends to swirl around in the plane of the disk and can point either up or down at the center of this magnetic vortex. This binary state can be useful for information storage. It is demonstrated that a single nanosecond current pulse can switch the core polarity. This method also provides the precise control of the core direction, which constitutes fundamental technology for realizing a vortex core memory.
description: 13 pages, 4 figures
The Development of the Methods in the Management in Agriculture in Russia
Creators: name: Tsaregorodtsev, Evgeny
name: Gusakova, Tatiana
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: The agriculture in Russia (Central and North Region) are characterized by the huge size of the farms, where the average arable field is about ten thousand acres and the average live-stock is about tree-four hundred head per one farm. The transition from the plan to the market economy sharply increase the requirement to quality of the management decision. The Russian agriculture economists call (compel) attention to the modern methods of the farm management. This paper presents the basic directions of the laboratory of economic forecasting at Mari State University (Central Region of Russia). Fuzzy logic, simulating and stochastic models are used in the adaptive methods in agriculture management.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Managing Transitions in the Farm Family Business
Creators: name: Errington, Andrew
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: A central objective of most farming families is to secure a viable business that can support successive generations. This paper focuses on the process of succession through which managerial control is passed from one generation to the next. A typology of succession strategies is described which lays particular emphasis on the progressive delegation of particular areas of responsibility to the farmer’s successor. Empirical evidence from England arid France is then presented which confirms the existence of a characteristic “ladder of farming succession” which may have widespread applicability.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Farmers and Daughters - Case Studies of Female Succession in New Zealand Farming
Creators: name: Gow, Neil G.
name: Rooney, Kerry
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management
Labor and Human Capital

description: Traditionally management of family farms in New Zealand has been a male preserve and inter generational transfer from father to son has been well documented. The process involving women as successors has however received little attention. This study used the qualitative method of grounded theory, in a case study format, to investigate both the characteristics of daughters as family farm successors, and the female succession process.lt was found that women as successors have a unique blend of characteristics which make the transfer process different from that of father to son. The women in this study were less concerned with total farm ownership than men and did not see it as being necessary before becoming "the farmer”, neither did they see major changes in management as being vital to their status as a farmer. The process of succession is further coloured by women's dual roles in family and farm, differences in personal priorities, and lack of opportunity.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Planning for British Columbia’s aging population : information, paradigms, and strategies
Creators: name: Campbell, Alan Glen
Publisher: name: University of British Columbia
Year: 2010

description: Planners for British Columbia's aging population are beginning to contemplate the difficult problem of ensuring the future adequacy of supportive programs for the elderly in the key areas of health, income, and housing. It now appears that these programs may well be squeezed between increased demand resulting from a rapid rise projected in the number and proportion of older people early in the next century, and lower rates of provincial and national growth foreseen by most economists. This descriptive study draws on available relevant information (much of it included in tables, figures, and appendices) to explore the problem from its origins in previous policy development to the situation at the present time. From this perspective the implications of current demographic, economic, and political/bureaucratic trends for programs for the elderly are assessed in both the national and international contexts. After a consideration of the roles of philosophy and ideology in social theory, a wide range of social gerontological theories are examined using a sociological scheme which classifies them according to four major paradigms in order to determine their abilities to describe accurately the information presented, and to prescribe useful policy alternatives. It is concluded that a theoretical approach which advocates radical change from a structural perspective is both most valid and most productive as a paradigm for planning for the aging population. A description of the relationship of planning to social change, and a systems analysis of the process of public policy making together introduce a discussion of strategies based upon the selected planning paradigm. Once the approaches used in planning for the elderly in the past are critically reviewed, the outline of a radical structural plan for the aging population is described, and then a strategy for its implementation over the next two or three decades is presented. The report concludes with a brief summary, and a number of specific recommendations for action by the appropriate public authorities, including several suggestions for enhancing the capacity for policy and program research in this field. One important recommendation is for the early establishment in British Columbia of an inter-departmental agency on aging to co-ordinate information and planning for the province's elderly.
Fast and precise mechanical characterization of ultra-thin films using fully integrated laser-induced surface acoustic wave spectroscopy (LAwave)
Creators: name: Zawischa, Martin
name: Schneider, Dieter
name: Makowski, Stefan
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2025
Subjects: LAwave
Thin film characterization
Nondestructive Testing
Quality control
Surface acoustic wave spectroscopy

description: Surface acoustic wave spectroscopy is established for the rapid and non-destructive characterization of ul-tra-thin coatings. The analysis of surface wave speed as a function of frequency enables precise information about the physical properties of coatings. A typical application is the measurement of the Young’s modulus providing information on coating production and processing, and related material properties, such as mor-phology, defects and composition. The poster introduces a fully integrated measuring system with user-friendly operating software. Such devices have been successfully installed worldwide in industry (mainly microelectronics, automotive) and in the research landscape. The measurement principle and the benefits, limitations and future developments are explained using actual examples of thin inorganic films from ALD and sputtering. Influences of pretreatment, thickness, defects and pore structure are illustrated. Finally, a comparison with nanoindentation will be presented.
The Fundamental Plane of Bulges at Intermediate Redshift
Creators: name: MacArthur, Lauren A.
name: Ellis, Richard S.
name: Treu, Tommaso
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a new study aimed at understanding the diversity and evolutionary properties of distant galactic bulges in the context of well-established trends for pure spheroidal galaxies. Bulges have been isolated for a sample of 137 spiral galaxies in the GOODS fields within the redshift range 0.1 < z < 1.2. Using proven photometric techniques we determine for each galaxy the characteristic parameters (size, surface brightness, profile shape) in the 4 GOODS-ACS imaging bands of both the disk and bulge components. Using the DEIMOS spectrograph on Keck, precision stellar velocity dispersions were secured for a sizeable fraction of the bulges. This has enabled us to compare the Fundamental Plane of our distant bulges with that of field spheroidal galaxies in a similar redshift range. Bulges in spiral galaxies with a bulge-to-total luminosity ratio (B/T) > 0.2 show very similar patterns of evolution to those seen for low luminosity spheroidals. To first order, their recent mass assembly histories are equivalent.
description: 4 pages, 2 figures. To appear in the Proceedings of the IAU Symposium 245, "Formation and Evolution of Galaxy Bulges", held at Oxford, U.K., July 2007, Eds. M. Bureau, E. Athanassoula, B. Barbuy
Machinery Costs on Danish Farms
Creators: name: Jacobsen, Brian H.
name: Poulsen, Bjarke
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: Detailed analyses of machinery costs carried out on 500 full-time farms in Denmark from 1990 to 1996 show that the average machinery costs are 2,845 DKK per hectare before labour costs and 4,125 DKK per hectare after labour costs. The farms analysed have an average acreage of 136 hectares and consist of arable-, pig- and dairy farms. Arable farms have the lowest costs and dairy farms the highest and the costs are falling with increased acreage. The paper finishes with recommendations on how farmers can make a quick estimate of their own machinery costs and improve their investment planning.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Three-Dimensional Simulations of Magnetized Thin Accretion Disks around Black Holes: Stress in the Plunging Region
Creators: name: Shafee, Rebecca
name: McKinney, Jonathan C.
name: Narayan, Ramesh
name: Tchekhovskoy, Alexander
name: Gammie, Charles F.
name: McClintock, Jeffrey E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe three-dimensional general relativistic magnetohydrodynamic simulations of a geometrically thin accretion disk around a non-spinning black hole. The disk has a thickness $h/r\sim0.05-0.1$ over the radial range $(2-20)GM/c^2$. In steady state, the specific angular momentum profile of the inflowing magnetized gas deviates by less than 2% from that of the standard thin disk model of Novikov & Thorne (1973). Also, the magnetic torque at the radius of the innermost stable circular orbit (ISCO) is only $\sim2%$ of the inward flux of angular momentum at this radius. Both results indicate that magnetic coupling across the ISCO is relatively unimportant for geometrically thin disks.
description: 4 pages, 4 figures, ApJL accepted
Supplementary Materials from Cascadia megathrust earthquake rupture model constrained by geodetic fault locking
Creators: name: Li, Duo
name: Yajing Liu
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Paleo-earthquakes along the Cascadia subduction zone inferred from offshore sediments and Japan coastal tsunami deposits approximated to M9+ and ruptured the entire margin. However, due to the lack of modern megathrust earthquake records and generally quiescence of subduction fault seismicity, the potential megathrust rupture scenario and influence of downdip limit of the seismogenic zone are still obscure. In this study, we present a numerical simulation of Cascadia subduction zone earthquake sequences in the laboratory-derived rate-and-state friction framework to investigate the potential influence of the geodetic fault locking on the megathrust sequences. We consider the rate-state friction stability parameter is constrained by geodetic fault locking models derived from decadal GPS records, tidal gauge and levelling-derived uplift rate data along the Cascadia margin. We incorporate historical coseismic subsidence inferred from coastal marine sediments to validate our coseismic rupture scenarios. Earthquake rupture pattern is strongly controlled by the downdip width of the seismogenic, velocity-weakening zone and by the earthquake nucleation zone size. In our model, along-strike heterogeneous characteristic slip distance is required to generate margin-wide ruptures that result in reasonable agreement between the synthetic and observed coastal subsidence for the AD 1700 Cascadia Mw∼9.0 megathrust rupture. Our results suggest geodetically inferred fault locking model can provide a useful constraint on earthquake rupture scenarios in subduction zones.This article is part of the theme issue ‘Fracture dynamics of solid materials: from particles to the globe’.
Risk Premia in Tractor and Combine Investments
Creators: name: Mumey, Glen
name: Unterschultz, James
Publisher: name: Unknown
Year: 1997
Subjects: Risk and Uncertainty

description: A farmer planning to use Net Present Value (NPV) analysis on machinery requires estimates of operating benefits over time, an estimate of terminal or salvage values and a risk-adjusted discount rate. Using financial market information and related Root Mean Square Errors on machinery value forecasts, risk premia for combine and tractor investments are estimated for non diversified investors. These risk premia can be added to the risk free rate in comparable maturity long term bonds to derive an appropriate discount rate for NPV analysis. Where machines are held as single-asset portfolios, risk premia identified for discounting terminal value vary between 5.5% and 8.3% for combines and between 2.4% and 3.6% for tractors, depending on age during the holding period. Where machines are held as parts of multi-asset portfolios, risk premia are usually lower, depending on machinery’s weight in the multi-asset portfolio and its covariance with the rest of the portfolio.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Bethe Ansatz for Quantum-Deformed Strings
Creators: name: Seibold, Fiona K.
name: Sfondrini, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two distinct $η$-deformations of strings on AdS$_5\times$S$^5$ can be defined; both amount to integrable quantum deformations of the string non-linear sigma model, but only one is itself a superstring background. In this paper we compare their conjectured all-loop worldsheet S matrices and derive the corresponding Bethe equations. We find that, while the S matrices are apparently different, they lead to the same Bethe equations. Moreover, in either case the eigenvalues of the transfer matrix, which encode the conserved charges of each system, also coincide. We conclude that the integrable structure underlying the two constructions is essentially the same. Finally, we write down the full Bethe-Yang equations describing the asymptotic spectrum of the superstring background.
description: 34 pages, minor changes
Effective Actions of IIB Matrix Model on S^3
Creators: name: Kaneko, Hiromichi
name: Kitazawa, Yoshihisa
name: Matsumoto, Koichiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: S^3 is a simple principle bundle which is locally S^2 \times S^1. It has been shown that such a space can be constructed in terms of matrix models. It has been also shown that such a space can be realized by a generalized compactification procedure in the S^1 direction. We investigate the effective action of supersymmetric gauge theory on S^3 with an angular momentum cutoff and that of a matrix model compactification. The both cases can be realized in a deformed IIB matrix model with a Myers Term. We find that the highly divergent contributions at the tree and one loop level are sensitive to the uv cutoff. However the two loop level contributions are universal since they are only logarithmically divergent. We expect that the higher loop contributions are insensitive to the uv cutoff since 3d gauge theory is super renormalizable.
description: 34 pages, 2 figures; added comments, corrected typos
Adoption of Risk Management and Growth Strategies to Achieve Short and Long Term Viability for the Farming Family
Creators: name: Shadbolt, Nicola M.
name: Carroll, Shane R.
Publisher: name: Unknown
Year: 1997
Subjects: Risk and Uncertainty

description: Farm ownership for many young farmers worldwide not in a position to inherit land is often seen to he an elusive target. In the past, New Zealand has encouraged new entrants into farming through a variety of government subsidized schemes. The marketplace has also developed various stepping stone ownership structures, such as share farming, which enable new entrants to accumulate capital towards the eventual purchase of land. This paper takes a case study approach, based on the farming andforestry partnerships we manage, that has seen us grow through sharefarming to land ownership with equity partners. The requirement for us to manage risk, particularly since economic deregulation, by both controlling our exposure to risk and controlling the impact of risk on the business is discussed as is the need for us to be focused on growth to ensure long term viability.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
"systematic_errors.tar.gz" of "Measurement of inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2014

description: Details of systematic errors and their correlations (unpack then view index.html)
description: CERN-LHC. Measurements of the inclusive jet and di-jet cross sections in proton-proton collisions at a centre-of-mass energy of 7 TeV. The analysis is based on the 2010 data sample with a total integrated luminosity of 37 pb^{-1}. The anti-KT algorithm is used for jet clustering with data given using both the parameters R=0.4 and R=0.6. Double-differential cross sections are given as a function of the inclusive jet PT in rapidity (y) bins and of the di-jet invariant mass in bins of half of the rapidity separation of the two jets (y*). Details of the systematic errors and their correlations are given in the link below. In the tables the first (sys) error is the correlated (in PT) systematic error and the second is the uncorrelated systematic error, both produced by combining the relevant errors in quadrature. Note added (27 JUN 2014): The cross section values reported in Tables 1-32 below should be multiplied by a factor of 1.0187 to take into account the updated value of the integrated luminosity for the ATLAS 2010 data taking period. The uncertainty on the global normalisation ("Lumi") increases slightly from 3.4% to 3.5%. See Eur.Phys.J. C73 (2013) 2518 for more details. The tables with details of systematic uncertainties should be updated as well.
"fnl1016_I1082936.tab.gz" of "Measurement of inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2014

description: Link to fastNLO v2.1 table (inclusive jets, R=0.4)
description: CERN-LHC. Measurements of the inclusive jet and di-jet cross sections in proton-proton collisions at a centre-of-mass energy of 7 TeV. The analysis is based on the 2010 data sample with a total integrated luminosity of 37 pb^{-1}. The anti-KT algorithm is used for jet clustering with data given using both the parameters R=0.4 and R=0.6. Double-differential cross sections are given as a function of the inclusive jet PT in rapidity (y) bins and of the di-jet invariant mass in bins of half of the rapidity separation of the two jets (y*). Details of the systematic errors and their correlations are given in the link below. In the tables the first (sys) error is the correlated (in PT) systematic error and the second is the uncorrelated systematic error, both produced by combining the relevant errors in quadrature. Note added (27 JUN 2014): The cross section values reported in Tables 1-32 below should be multiplied by a factor of 1.0187 to take into account the updated value of the integrated luminosity for the ATLAS 2010 data taking period. The uncertainty on the global normalisation ("Lumi") increases slightly from 3.4% to 3.5%. See Eur.Phys.J. C73 (2013) 2518 for more details. The tables with details of systematic uncertainties should be updated as well.
"fnl1015_I1082936.tab.gz" of "Measurement of inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2014

description: Link to fastNLO v2.1 table (inclusive jets, R=0.6)
description: CERN-LHC. Measurements of the inclusive jet and di-jet cross sections in proton-proton collisions at a centre-of-mass energy of 7 TeV. The analysis is based on the 2010 data sample with a total integrated luminosity of 37 pb^{-1}. The anti-KT algorithm is used for jet clustering with data given using both the parameters R=0.4 and R=0.6. Double-differential cross sections are given as a function of the inclusive jet PT in rapidity (y) bins and of the di-jet invariant mass in bins of half of the rapidity separation of the two jets (y*). Details of the systematic errors and their correlations are given in the link below. In the tables the first (sys) error is the correlated (in PT) systematic error and the second is the uncorrelated systematic error, both produced by combining the relevant errors in quadrature. Note added (27 JUN 2014): The cross section values reported in Tables 1-32 below should be multiplied by a factor of 1.0187 to take into account the updated value of the integrated luminosity for the ATLAS 2010 data taking period. The uncertainty on the global normalisation ("Lumi") increases slightly from 3.4% to 3.5%. See Eur.Phys.J. C73 (2013) 2518 for more details. The tables with details of systematic uncertainties should be updated as well.
Double optical spring enhancement for gravitational wave detectors
Creators: name: Rehbein, Henning
name: Mueller-Ebhardt, Helge
name: Somiya, Kentaro
name: Danilishin, Stefan L.
name: Schnabel, Roman
name: Danzmann, Karsten
name: Chen, Yanbei
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Currently planned second-generation gravitational-wave laser interferometers such as Advanced LIGO exploit the extensively investigated signal-recycling (SR) technique. Candidate Advanced LIGO configurations are usually designed to have two resonances within the detection band, around which the sensitivity is enhanced: a stable optical resonance and an unstable optomechanical resonance - which is upshifted from the pendulum frequency due to the so-called optical-spring effect. Alternative to a feedback control system, we propose an all-optical stabilization scheme, in which a second optical spring is employed, and the test mass is trapped by a stable ponderomotive potential well induced by two carrier light fields whose detunings have opposite signs. The double optical spring also brings additional flexibility in re-shaping the noise spectral density and optimizing toward specific gravitational-wave sources. The presented scheme can be extended easily to a multi-optical-spring system that allows further optimization.
The Assessment and Measurement of the Economic Impacts of Stocking Rates
Creators: name: Gilchrist, Graham
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural and Food Policy

description: Examining and assessing stocking rates and their economic impact on a ranch requires the knowledge and understanding of two systems. These systems are range management and production economics. Range management defines the carrying capacity, which is the maximum number of animals one can run without depleting the range resource. Production economics defines the number of animals needed to • maximize net income and net equity. Management considerations and decisions can put pressure on the stocking rate to be above the carrying capacity. The main pressures are risk discount rates and maximized short term financial gains. Unless measured, overgrazing is not seen on a financial statement. Measuring the resource and treating it as a production inventory will offset the inflated gross revenue created by over stocking. Inventory treatment is for internal reporting only.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
The Economies of Suckler Cow Farming
Creators: name: Hovland, Ivar
name: Romarheim, Hakon
Publisher: name: Unknown
Year: 1997
Subjects: Livestock Production/Industries

description: The main purpose of this paper is to clarify the economies of suckler cow farming.
The number of suckler cows in Norway has increased from 8000 in 1990 to about 23800 in 1996. According to the agricultural policy and from a governmental point of view, this interest is preferred. It is not clear, however, whether the economies in this production should justify such an increased attention.
In the first part of this paper important economic factors and results of this type of farming are identified on an empirical base. In the second part economical optimal plans for production are worked out for different farm sizes, crop yields and labour inputs.
Results to be mentioned:
• in general low income on small farms
• the profitability depends on fixed costs, labour requirements and access of extensive grassland
• more profitable than grain production at yields less than 3,8 t/ha
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Reduced Revenues Associated With Johne's Disease in US Dairy Heads
Creators: name: Ott, Stephen L.
name: Wells, Scott J.
Publisher: name: Unknown
Year: 1997
Subjects: Livestock Production/Industries

description: Johne 5 disease, or paratuberculosis, is a chronic, infectious, wasting disease that affects dairy cattle. Estimation of its economic impact on U.S. diary operations was part of the USD A National Animal Health Monitoring System’s (NAHMS) 1996 national dairy study. Herds that tested positive for the disease and reported cull cows showing clinical signs experienced reduced milk production of over 450 kg per cow, culled more cows but had lower cull cow revenues, and had greater mortality than herds that tested negative and showed no clinical signs of Johne’s disease.
These production impacts resulted in test positive clinically positive herds experiencing an economic loss of $157-$166per cow inventory. Nationally, these losses translate to a $36-$38 per cow cost which is at least a third more than previous estimates.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Supplementary Materials from Cascadia megathrust earthquake rupture model constrained by geodetic fault locking
Creators: name: Li, Duo
name: Yajing Liu
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Paleo-earthquakes along the Cascadia subduction zone inferred from offshore sediments and Japan coastal tsunami deposits approximated to M9+ and ruptured the entire margin. However, due to the lack of modern megathrust earthquake records and generally quiescence of subduction fault seismicity, the potential megathrust rupture scenario and influence of downdip limit of the seismogenic zone are still obscure. In this study, we present a numerical simulation of Cascadia subduction zone earthquake sequences in the laboratory-derived rate-and-state friction framework to investigate the potential influence of the geodetic fault locking on the megathrust sequences. We consider the rate-state friction stability parameter is constrained by geodetic fault locking models derived from decadal GPS records, tidal gauge and levelling-derived uplift rate data along the Cascadia margin. We incorporate historical coseismic subsidence inferred from coastal marine sediments to validate our coseismic rupture scenarios. Earthquake rupture pattern is strongly controlled by the downdip width of the seismogenic, velocity-weakening zone and by the earthquake nucleation zone size. In our model, along-strike heterogeneous characteristic slip distance is required to generate margin-wide ruptures that result in reasonable agreement between the synthetic and observed coastal subsidence for the AD 1700 Cascadia Mw∼9.0 megathrust rupture. Our results suggest geodetically inferred fault locking model can provide a useful constraint on earthquake rupture scenarios in subduction zones.This article is part of the theme issue ‘Fracture dynamics of solid materials: from particles to the globe’.
Manure Application Planner (MAP) Conversion and Use in Italy
Creators: name: Richardson, D. Wynn
name: Boggia, Antonia
name: Schmitt, Michael A.
name: Levins, Richard A.
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: For livestock producers, a primary environmental concern is proper manure utilization and handling. A manure application plan can be developed by livestock producers as a means of accountability for their manure management. Producers are equally concerned, however, about the financial status of their farm business. Any manure management plan must also include an economic assessment as well as traditional agronomic considerations.
The Manure Application Planner (MAP) software was developed at the University of Minnesota and has been adaptedfor use in Italy. We will discuss the process of adapting the software and show an example case farm of how it may be used in Italy.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
The Higher Order Schwarzian Derivative: Its Applications for Chaotic Behavior and New Invariant Sufficient Condition of Chaos
Creators: name: Hacibekiroglu, G.
name: Caglar, M.
name: Polatoglu, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The Schwarzian derivative of a function f(x) which is defined in the interval (a, b) having higher order derivatives is given by Sf(x)=(f''(x)/f'(x))'-1/2(f''(x)/f'(x))^2 . A sufficient condition for a function to behave chaotically is that its Schwarzian derivative is negative. In this paper, we try to find a sufficient condition for a non-linear dynamical system to behave chaotically. The solution function of this system is a higher degree polynomial. We define n-th Schwarzian derivative to examine its general properties. Our analysis shows that the sufficient condition for chaotic behavior of higher order polynomial is provided if its highest order three terms satisfy an inequality which is invariant under the degree of the polynomial and the condition is represented by Hankel determinant of order 2. Also the n-th order polynomial can be considered to be the partial sum of real variable analytic function. Let this analytic function be the solution of non-linear differential equation, then the sufficient condition for the chaotical behavior of this function is the Hankel determinant of order 2 negative, where the elements of this determinant are the coefficient of the terms of n, n-1, n-2 in Taylor expansion.
description: 8 pages
The Economics of Beef Cow-Calf Production In Alberta: Research and Extension
Creators: name: Ross, Carlyle
name: Kaliel, Dale
name: Chase, Darren
Publisher: name: Unknown
Year: 1997
Subjects: Livestock Production/Industries

description: Beef cow-calfproduction is the backbone ofAlberta’s expanding beef cattle industry. Production has grown significantly in the past four decades. The uninitiated may perceive this low margin and low return business as being uneconomical. However, careful examination of production and economic indicators suggests otherwise. The Production Economics Branch of AAFRD has been conducting research into the economics of beef cow-calfproduction over the last 10 years. This Integrated Resource Management (IRM) project examines each enterprise on the farm as well as the whole farm. Farm Management and production specialists are partners in this research and extension effort. Consequently all aspects of the farming operation are analysed and reviewed with study participants at scheduled regional seminars. The production economics research results indicate that 1994 was a profitable year for Alberta’s cow-calf producers. Moreover, between 1985 and 1994, cow-calf production was reasonably profitable. Cashflow without government support was positive every year except 1985. Most production indicators for the average and the Top 1/3 management farms were similar. However a key difference was that Top 1/3 farms were able to wean more pounds of calfper cow exposed, while keeping cost to a minimum. Continued industry success and competitiveness will hinge on annual growth (weaning weight) and low cost management. The IRM project can go a long way in providing technical support for the industry as it positions itself for the 21st century.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Weather on Other Worlds. VI. Optical Spectrophotometry of Luhman 16B Reveals Large-amplitude Variations in the Alkali Lines
Creators: name: Heinze, A. N.
name: Metchev, Stanimir
name: Kurtev, Radostin
name: Gillon, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Using a novel wide-slit, multi-object approach with the GMOS spectrograph on the 8-meter Gemini South telescope, we have obtained precise time-series spectrophotometry of the binary brown dwarf Luhman 16 at optical wavelengths over two full nights. The B component of this binary system is known to be variable in the red optical and near-infrared with a period of 5 hr and an amplitude of 5--20%. Our observations probe its spectrally-resolved variability in the 6000--10000 Angstrom range. At wavelengths affected by the extremely strong, broadened spectral lines of the neutral alkali metals (the potassium doublet centered near 7682 Angstroms and the sodium doublet at 5893 Angstroms), we see photometric variations that differ strikingly from the those of the 8000--10000 Angstrom `red continuum' that dominates our detected flux. On UT 2014 February 24, these variations are anticorrelated with the red continuum, while on Feb 25 they have a large relative phase shift. The extent to which the wavelength-dependent photometric behavior diverges from that of the red continuum appears to correlate with the strength of the alkali absorption. We consider but ultimately reject models in which our observations are explained by lightning or auroral activity. A more likely cause is cloud-correlated, altitude-dependent variations in the gas-phase abundances of sodium and potassium, which are in chemical equilibrium with their chlorides in brown dwarf atmospheres. Clouds could influence these chemical equilibria by changing the atmospheric temperature profile and/or through cloud particles acting as chemical catalysts.
description: 26 pages, 14 figures, accepted by ApJ
Improved chain mean-field theory for quasi-one-dimensional quantum magnets
Creators: name: Todo, Synge
name: Shibasaki, Akira
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A novel mean-field approximation for quasi-one-dimensional (Q1D) quantum magnets is formulated. Our new mean-field approach is based on the Bethe-type effective-field theory, where thermal and quantum fluctuations between the nearest-neighbor chains as well as those in each chain are taken into account exactly. The self-consistent equation for the critical temperature contains the boundary-field magnetic susceptibilities of a multichain cluster, which can be evaluated accurately by some analytic or numerical methods, such as the powerful quantum Monte Carlo method. We show that the accuracy of the critical temperature of Q1D magnets as a function of the strength of interchain coupling is significantly improved, compared with the conventional chain mean-field theory. It is also demonstrated that our new approximation can predict nontrivial dependence of critical temperature on the sign (i.e., ferromagnetic or antiferromagnetic) of interchain coupling as well as on the impurity concentration in randomly diluted Q1D Heisenberg antiferromagnets.
description: 9 pages, 6 figures
Bayesian nonparametric estimators derived from conditional Gibbs structures
Creators: name: Lijoi, Antonio
name: Prünster, Igor
name: Walker, Stephen G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62G05, 62F15, 60G57 (Primary)

description: We consider discrete nonparametric priors which induce Gibbs-type exchangeable random partitions and investigate their posterior behavior in detail. In particular, we deduce conditional distributions and the corresponding Bayesian nonparametric estimators, which can be readily exploited for predicting various features of additional samples. The results provide useful tools for genomic applications where prediction of future outcomes is required.
description: Published in at http://dx.doi.org/10.1214/07-AAP495 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Археология, этнография и языки Кавказа. Вып. 2: К 125-летию со дня рождения Е. Г. Пчелиной
Creators: name: Бондарь (сост.), Л. Д.
name: Застрожнова (сост.), Е. Г.
Publisher: name: Реноме
Year: 2021

description: Сборник статей приурочен к 125-летию со дня рождения известного кавказоведа, осетиноведа Евгении Георгиевны Пчелиной (1895–1972) и включает несколько тематических направлений: новые сведения к биографии Е. Г. Пчелиной, вопросы изучения рукописи Е. Г. Пчелиной о святилище Реком в Цейском ущелье, отдельные аспекты научной работы Е. Г. Пчелиной. Заключающий раздел посвящен научным биографиям ученых-кавказоведов в свете архивных материалов.
Предназначен для специалистов-кавказоведов, а также широкого круга исследователей, интересующихся культурой Осетии и историей изучения Кавказа.
Bethe--Salpeter wave functions in integrable models
Creators: name: Aoki, Sinya
name: Balog, Janos
name: Weisz, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate some properties of Bethe--Salpeter wave functions in integrable models. In particular we illustrate the application of the operator product expansion in determining the short distance behavior. The energy dependence of the potentials obtained from such wave functions is studied, and further we discuss the (limited) phenomenological significance of zero--energy potentials.
description: LaTeX, 38 pages, 9 figures
Accurate energies of transition metal atoms, ions, and monoxides using selected configuration interaction and density-based basis-set corrections
Creators: name: Yao, Yuan
name: Giner, Emmanuel
name: Anderson, Tyler A.
name: Toulouse, Julien
name: Umrigar, C. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The semistochastic heat-bath configuration interaction (SHCI) method is a selected configuration interaction plus perturbation theory method that has provided near-full configuration interaction (FCI) levels of accuracy for many systems with both single- and multi-reference character. However, obtaining accurate energies in the complete basis set limit is hindered by the slow convergence of the FCI energy with respect to basis size. Here we show that the recently developed basis-set correction method based on range-separated density-functional theory can be used to significantly speed up basis-set convergence in SHCI calculations. In particular, we study two such schemes that differ in the functional used, and apply them to transition metal atoms and monoxides to obtain total, ionization, and dissociation energies well converged to the complete-basis-set limit within chemical accuracy.
description: 5 figures, supplemental material
A Comparison of the Agronomics and Economics of Wheat Production in Saskatchewan, Canada and Kokchetev, Kazakhstan
Creators: name: Brown, William J.
Publisher: name: Unknown
Year: 1997
Subjects: Crop Production/Industries

description: Saskatchewan, Canada and Kokchetev, Kazakhstan are two of the prime wheat growing areas of the world. Their climate, topography, and soil resources are very similar. This paper compares the agronomics and economics of wheat production in the two regions and finds many similarities but also some significant differences. Saskatchewan consists of a system of independently family owned and reasonably well managed farm businesses with an average size of approximately 500 hectares. Kokchetev consists of a system of large (10,000 hectares) formally state owned, and now cooperatively owned farms. In theory the Kokchetev farms should be much more efficient but they are plagued by worn out machinery, massive under employment and too much debt. Many of these Kokchetev farms are undergoing massive restructuring whereby the ownership is being concentrated in fewer hands, new western farm machinery is being used, and former state farm workers are losing their jobs.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997
Pesticide Management at Farm Level
Creators: name: Hansen, Mariane
Publisher: name: Unknown
Year: 1997
Subjects: Farm Management

description: In this paper a simulation model is constructed whereby it is possible to evaluate economic consequences of various applications of pesticides at farm level. The estimations are based on dose response functions for pesticide use for different crops with respect to fungus, insects and weeds. The loss of each type of pesticide is added to get a total estimate of the loss at field level. Finally gross margin at crop level and farm level are estimated with respect to loss and the optimal treatment frequency index.
description: Eleventh International Farm Management Congress, University of Calgary, Canada, July 14-19, 1997