cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PROCESSOR DEMAND AND PRICE-MARKUP FUNCTIONS FOR CATFISH: A DISAGGREGATED ANALYSIS WITH IMPLICATIONS FOR THE OFF-FLAVOR PROBLEM
Creators: name: Kinnucan, Henry W.
name: Sindelar, Scott
name: Wineholt, David
name: Hatch, L. Upton
name: Kinnucan, Henry W.
name: Sindelar, Scott
name: Wineholt, David
name: Hatch, L. Upton
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis

description: Off-flavor in catfish restricts farm marketings 10 to 45% depending on the season. The economic impact on society of this imposed supply restriction depends, in part, on the elasticity of demand for catfish. Econometric estimates based on disaggregated processing plant data indicate an elastic demand at the processor level but an inelastic demand at the farm level. Short-run social welfare gains from the elimination of off-flavor are estimated to equal 12.0% of farm revenues ($10.0 million in 1983). The inelastic demand for catfish at the farm level, however, means that most of the societal gains will accrue to individuals beyond the farm gate. Thus, an economic justification exists for public sector funding of off-flavor research.
RISK EFFICIENT PERENNIAL CROP SELECTION: A MOTAD APPROACH TO CITRUS PRODUCTION
Creators: name: Teague, Paul W.
name: Lee, John G.
name: Teague, Paul W.
name: Lee, John G.
Publisher: name: Unknown
Year: 1988
Subjects: Risk and Uncertainty

description: Numerous studies have analyzed annual crop mix decisions in light of producer risk preferences. Few studies have focused on perennial crop mix decisions. This study attempts to identify not only the optimal mix of grapefruit and oranges for various risk-aversion levels, but also optimal planting densities within each species. Experimental plot data from a grapefruit and orange spacing trial over the 1970-82 period were used in MOTAD formulation to address optimal perennial crop mix and planting density decisions under different capital constraints. An examination of results suggests crop mix and planting density diversification within and across species of citrus as a means of reducing income variability.
Le "Liber Askumae" selon le manuscrit Bodleian Bruce 93
Creators: name: Wion, Anaïs
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 93 (2009): Oriens christianus, Band 93
AN ANALYSIS OF MARKET STRUCTURE AND PRICING IN THE FLORIDA CELERY INDUSTRY
Creators: name: Taylor, Timothy G.
name: Kilmer, Richard L.
name: Taylor, Timothy G.
name: Kilmer, Richard L.
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis

description: The pricing behavior of the Florida celery industry under the current federal marketing order was examined by analyzing the implied market structure of the industry using a model proposed by Appelbaum. Point estimates of the oligopoly power index suggest that some degree of price enhancement above that which would be characterized by a perfectly competitive market may have occurred. However, the bulk of statistical evidence suggests that the departure from marginal cost pricing implied by the industry's pricing behavior is not statistically significant.
Hidden one-dimensional electronic structure and non-Fermi liquid angle resolved photoemission line shapes of $η$-Mo$_4$O$_{11}$
Creators: name: Gweon, G. -H.
name: Mo, S. -K.
name: Allen, J. W.
name: Ast, C. R.
name: Höchst, H.
name: Sarrao, J. L.
name: Fisk, Z.
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: We report angle resolved photoemission (ARPES) spectra of $η$-Mo$_4$O$_{11}$, a layered metal that undergoes two charge density wave (CDW) transitions at 109 K and 30 K. We have directly observed the ``hidden one-dimensional (hidden-1d)'' Fermi surface and an anisotropic gap opening associated with the 109 K transition, in agreement with the band theoretical description of the CDW transition. In addition, as in other hidden-1d materials such as NaMo$_6$O$_{17}$, the ARPES line shapes show certain anomalies, which we discuss in terms of non-Fermi liquid physics and possible roles of disorder.
description: 3 figures; Erratum added to include missed references
Additional file 8 of Levels of mannose-binding lectin (MBL) associates with sepsis-related in-hospital mortality in women
Creators: name: Jacobson, Sofie
name: Larsson, Peter
name: Anna-Maja Åberg
name: Johansson, Göran
name: Winsö, Ola
name: Söderberg, Stefan
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 8: Table S6. Comparison of MBL distribution in the acute phase with a cohort of Danish blood donor.
Additional file 7 of Levels of mannose-binding lectin (MBL) associates with sepsis-related in-hospital mortality in women
Creators: name: Jacobson, Sofie
name: Larsson, Peter
name: Anna-Maja Åberg
name: Johansson, Göran
name: Winsö, Ola
name: Söderberg, Stefan
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 7: Table S5. Comparison of MBL distribution at baseline with a cohort of Danish blood donor.
Fractals vs. halos: Asymptotic scaling without fractal properties
Creators: name: Bottaccio, M.
name: Montuori, M.
name: Pietronero, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Precise analyses of the statistical and scaling properties of galaxy distribution are essential to elucidate the large-scale structure of the universe. Given the ongoing debate on its statistical features, the development of statistical tools permitting to discriminate accurately different spatial patterns is highly desiderable. This is specially the case when non-fractal distributions have power law two-point correlation functions, which are usually signatures of fractal properties. Here we review some possible methods used in the literature and introduce a new variable called "scaling gradient". This tool and the conditional variance are shown to be effective in providing an unambiguous way for such a distinction. Their application is expected to be of outmost importance in the analysis of upcoming galaxy catalogues.
description: 7 pages, 3 figures
Reinforcement Learning with Uncertainty Estimation for Tactical Decision-Making in Intersections
Creators: name: Hoel, Carl-Johan
name: Tram, Tommy
name: Sjöberg, Jonas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper investigates how a Bayesian reinforcement learning method can be used to create a tactical decision-making agent for autonomous driving in an intersection scenario, where the agent can estimate the confidence of its recommended actions. An ensemble of neural networks, with additional randomized prior functions (RPF), are trained by using a bootstrapped experience replay memory. The coefficient of variation in the estimated $Q$-values of the ensemble members is used to approximate the uncertainty, and a criterion that determines if the agent is sufficiently confident to make a particular decision is introduced. The performance of the ensemble RPF method is evaluated in an intersection scenario, and compared to a standard Deep Q-Network method. It is shown that the trained ensemble RPF agent can detect cases with high uncertainty, both in situations that are far from the training distribution, and in situations that seldom occur within the training distribution. In this study, the uncertainty information is used to choose safe actions in unknown situations, which removes all collisions from within the training distribution, and most collisions outside of the distribution.
General Covariance and its Implications for Einstein's Space-Times
Creators: name: Lusanna, Luca
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This is a review of the chrono-geometrical structure of special and general relativity with a special emphasis on the role of non-inertial frames and of the conventions for the synchronization of distant clocks. ADM canonical metric and tetrad gravity are analyzed in a class of space-times suitable to incorporate particle physics by using Dirac theory of constraints, which allows to arrive at a separation of the genuine degrees of freedom of the gravitational field, the Dirac observables describing generalized tidal effects, from its gauge variables, describing generalized inertial effects. A background-independent formulation (the rest-frame instant form of tetrad gravity) emerges, since the chosen boundary conditions at spatial infinity imply the existence of an asymptotic flat metric. By switching off the Newton constant in presence of matter this description deparametrizes to the rest-frame instant form for such matter in the framework of parametrized Minkowski theories. The problem of the objectivity of the space-time point-events, implied by Einstein's Hole Argument, is analyzed.
description: Talk at the Meeting {\it La Relativita' dal 1905 al 2005: passato, presente e futuro} organized by SIGRAV and SISM, Department of Mathematics of the Torino University, June 1, 2005; at ERE2005 {\it A century of relativity physics}, XXVIII Spanish Relativity Meeting, Oviedo, September 6-10, 2005; at QG05 {\it Constrained dynamics and quantum gravity 05}, Cala Gonone (Sardinia, Italy), September 12-16, 2005 Some typo errors and some references are corrected
The Importance of Interactions for Mass Loss from Satellite Galaxies in Cold Dark Matter Haloes
Creators: name: Knebe, Alexander
name: Power, Chris
name: Gill, Stuart P. D.
name: Gibson, Brad K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the importance of interactions between dark matter substructures for the mass loss they suffer whilst orbiting within a sample of high resolution galaxy cluster mass Cold Dark Matter haloes formed in cosmological N-body simulations. We have defined a quantitative measure that gauges the degree to which interactions are responsible for mass loss from substructures. This measure indicates that interactions are more prominent in younger systems when compared to older more relaxed systems. We show that this is due to the increased number of encounters a satellite experiences and a higher mass fraction in satellites. This is in spite of the uniformity in the distributions of relative distances and velocities of encounters between substructures within the different host systems in our sample. Using a simple model to relate the net force felt by a single satellite to the mass loss it suffers, we show that interactions with other satellites account for ~30% of the total mass loss experienced over its lifetime. The relation between the age of the host and the importance of interactions increases the scatter about this mean value from ~25% for the oldest to ~45% for the youngest system we have studied. We conclude that satellite interactions play a vital role in the evolution of substructure in dark matter halos and that a significant fraction of the tidally stripped material can be attributed to these interactions.
description: accepted for publication in MNRAS, 11 pages, 10 figures
The circumstellar environment of EX Lup: the SPHERE and SINFONI views
Creators: name: Rigliaco, E.
name: Gratton, R.
name: Kospal, A.
name: Mesa, D.
name: D'Orazi, V.
name: Abraham, P.
name: Desidera, S.
name: Ginski, C.
name: van Holstein, R. G.
name: Dominik, C.
name: Garufi, A.
name: Henning, T.
name: Menard, F.
name: Zurlo, A.
name: Baruffolo, A.
name: Maurel, D.
name: Blanchard, P.
name: Weber, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: EX Lup is a well-studied T Tauri star that represents the prototype of young eruptive stars EXors. In this paper we analyze new adaptive optics imaging and spectroscopic observations of EX Lup and its circumstellar environment in near-infrared in its quiescent phase. We observed EX Lup with the high contrast imager SPHERE/IRDIS in the dual-beam polarimetric imaging mode to resolve the circumstellar environment in near-infrared scattered light. We complemented these data with earlier SINFONI spectroscopy. We resolve for the first time in scattered light a compact feature around EX Lup azimuthally extending from 280deg to 360deg, and radially extending from 0.3arcsec to 0.55arcsec in the plane of the disk. We explore two different scenarios for the detected emission. One accounting for the emission as coming from the brightened walls of the cavity excavated by the outflow whose presence was suggested by ALMA observations in the J=3-2 line of 12CO. The other accounts for the emission as coming from an inclined disk. We detect for the first time a more extended circumstellar disk in scattered light, which shows that a region between 10 and 30 au is depleted of mum-size grains. We compare the J-, H- and K-band spectra obtained with SINFONI in quiescence with the spectra taken during the outburst, showing that all the emission lines were due to the episodic accretion event. Conclusions. Based on the morphology analysis we favour the scenario in which the scattered light is coming from a circumstellar disk rather than the outflow around EX Lup. We analyze the origin of the observed feature either as coming from a continuous circumstellar disk with a cavity, or from the illuminated wall of the outer disk or from a shadowed disk. Moreover, we discuss what is the origin of the mum-size grains depleted region, exploring the possibility that a sub-stellar companion may be the cause of it.
description: Accepted for publication by A&A, 10 pages, 8 figures
Unconventional charge density wave driven by electron-phonon coupling
Creators: name: Ványolos, András
name: Dóra, Balázs
name: Virosztek, Attila
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report our study on unconventional charge density waves (UCDW) (i.e. a charge density wave with wavevector dependent gap) in pure quasi-one dimensional conductors. We develop a new possible mechanism of establishment of such a low temperature phase, in which the driving force of the phase transition is the electron-phonon interaction with coupling depending on both the momentum transfer q and the momentum of the scattered electron k. Mean field treatment is applied to obtain the excitation spectrum, correlation functions such as the density correlator and the optical conductivity, and the effective mass of the phase excitation. The fluctuation of the order parameter leads to the sliding of the UCDW as a whole. In the absence of impurities, we calculated the effect of this fluctuation on the optical properties. The inclusion of the collective mode significantly alters the optical conductivity, and leads to an effective mass which is nonmonotonic in temperature as opposed to conventional CDWs.
description: 11 figures, 13 pages, Revtex4 style
Brane Dimers and Quiver Gauge Theories
Creators: name: Franco, Sebastian
name: Hanany, Amihay
name: Kennaway, Kristian D.
name: Vegh, David
name: Wecht, Brian
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe a technique which enables one to quickly compute an infinite number of toric geometries and their dual quiver gauge theories. The central object in this construction is a ``brane tiling,'' which is a collection of D5-branes ending on an NS5-brane wrapping a holomorphic curve that can be represented as a periodic tiling of the plane. This construction solves the longstanding problem of computing superpotentials for D-branes probing a singular non-compact toric Calabi-Yau manifold, and overcomes many difficulties which were encountered in previous work. The brane tilings give the largest class of N=1 quiver gauge theories yet studied. A central feature of this work is the relation of these tilings to dimer constructions previously studied in a variety of contexts. We do many examples of computations with dimers, which give new results as well as confirm previous computations. Using our methods we explicitly derive the moduli space of the entire Y^{p,q} family of quiver theories, verifying that they correspond to the appropriate geometries. Our results may be interpreted as a generalization of the McKay correspondence to non-compact 3-dimensional toric Calabi-Yau manifolds.
description: 56 pages, 36 figures, JHEP. v2: added references, corrected figures 9, 10, some minor changes
Ferromagnetic Resonance in selected nanostructural materials designed for technological applications
Creators: name: Kurlyandskaya, G. V.
name: Bhagat, S. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: During the past ten years nanostructures have been subject of active research. Fabrication of such systems follows well developed methods. The increase in the number of materials available for research and applications requires that the methods of their characterization be even more precise then before. Thin film structures have many advantages for technological applications because of compatibility with integrated circuit design. The magnetoimpedance, MI (change of impedance of a ferromagnet on application of a field) in 3-layered structures consisting of two magnetic layers separated by a non-magnetic conductive layer has been predicted to show high MI. In many cases the experimental values of MI effect are smaller than the theoretical predictions. Therefore, more careful characterization of the samples is a must. Accordingly, the first part of the present research deals with a ferromagnetic resonance, FMR, study of thin films and multilayers containing Fe20Ni80 layered nanocomponents. The second system proposed for ferromagnetic resonance study consists of Co/GdCo multilayers prepared by rf-sputtering. It was chosen as a model system both for convenience and in view of possible applications. The third group of magnetic materials for FMR characterization consists of powders: commercial polystyrene beads (Dynabeads-480) and CoNi powders with nanoscale particle dimensions. These particles have many biomedical applications. FMR and microwave absorption in micron size powders have been studied previously. More recently new methods of small particle fabrication have been developed. Therefore their characterization by microwave methods is highly desirable.
description: 42 pages, 23 figures
ESTIMATING SOURCES OF FLUCTUATIONS IN THE AUSTRALIAN WOOL MARKET: AN APPLICATION OF VAR METHODS
Creators: name: Myers, Robert J.
name: Piggott, Roley R.
name: Tomek, William G.
name: Myers, Robert J.
name: Piggott, Roley R.
name: Tomek, William G.
Publisher: name: Unknown
Year: 1990
Subjects: Demand and Price Analysis

description: Vector autoregression (VAR) methods are used to analyse the contribution of supply, demand and policy shocks to unpredictable fluctuations in the market for Australian wool. VAR procedures are compared with conventional structural econometric models as methods for decomposing sources of instability. While each has advantages and disadvantages, VAR procedures might be viewed as preferable when the underlying market structure is complex and uncertain, as it is in the case of wool. Based on the results obtained, demand shocks are the dominant source of uncertainty in the wool market in the absence of Australian Wool Corporation intervention, but intervention has blunted their effects, reducing market uncertainty and increasing the average level of prices and revenues.
UNDERWRITING ASSISTANCE TO THE AUSTRALIAN WHEAT INDUSTRY - AN APPLICATION OF OPTION PRICING THEORY
Creators: name: Bardsley, Peter
name: Cashin, Paul
name: Bardsley, Peter
name: Cashin, Paul
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries

description: For the ten crop seasons 1979-80 to 1988-89, returns to producers in the Australian wheat industry were underwritten by a government-guaranteed price floor. Similar schemes operate in other rural industries (dairy, apples and pears, dried fruits). Although the underwriting provisions have only been triggered once (in the 1986-87 season), the provision of this scheme has acted to reduce the risk normally associated with returns to producers of wheat in all years of its operation. This reduction in risk has been granted free-of-charge by the Commonwealth Government. The guaranteed price can be viewed as a put option taken out by the Government on behalf of growers - it gives growers the option to sell to the Australian Wheat Board at this floor price. The aim of this paper is to apply to this underwriting arrangement the Black-Scholes formula for valuing options, in order to estimate the cost that growers would otherwise have had to pay to obtain cover (through put options) equivalent to the guaranteed price. We also estimate the magnitude of this form of assistance to the industry, which (until now) has not been taken into account unless the returns to growers fell below the guaranteed price.
Duty and the nature of God : a pragmatic reconstruction of Berkeley's divine command theory of moral obligation
Creators: name: Campbell, Mark
Publisher: name: University of British Columbia
Year: 2009

description: George Berkeley's moral philosophy postulates the commands of God as constitutive of moral obligation. However there are different forms that a divine command ethics can take, and the form that Berkeley's takes has not received the attention that has been paid to his metaphysical theism. The most common interpretation would have Berkeley respond to the question posed in Plato's Euthyphro by insisting that moral predicates are applicable purely on the basis of God's so deeming them, rather that by allowing that God recognises a propriety of application that would yet be proper were God not to recognise it. This interpretation is encouraged by what Berkeley says in Passive Obedience. However I challenge this interpretation, on the strength of what Berkeley has to say in Alciphron, his Essays, his Sermons, the Principles of Human Knowledge and a variety of other sources. My thesis contends that Berkeley in fact offers two, radically different theses that conclude with a version of the divine command theory of ethics. He holds that, given certain divine attributes which are empirically verifiable by people, God's commands serve an epistemological function; logically, they indicate the best possible actions people should undertake. This argument is not a success, however, because the attributes in question are not suggested by empirical investigation as Berkeley thinks; Hume's objections to Berkeley's style of argument in this area are sufficient to block it. However, while this reason to treat divine commands as prescriptively exhaustive is not compelling, Berkeley produces an alternative route to the same conclusion that is informed by a different type of reason people have for adopting beliefs. Berkeley, I argue, is a pragmatist, and is committed to the legitimacy and rationality of adopting beliefs on the basis of their conduciveness to securing certain ends, as long as minimal evidential considerations are met - that they do not tell against the proposition in question. He argues persistently that an intelligent grasp of what people wish their activities to achieve, including the activity of accepting propositional belief, will reveal the necessity of adopting the belief that our moral duty is defined by the will of God (as well as the subsidiary beliefs that this involves, such as that God exists and has a certain nature). Berkeley's pioneering pragmatism has not been adequately excavated, and my thesis makes contribution to this task.
Nuclear spin state narrowing via gate--controlled Rabi oscillations in a double quantum dot
Creators: name: Klauser, D.
name: Coish, W. A.
name: Loss, Daniel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study spin dynamics for two electrons confined to a double quantum dot under the influence of an oscillating exchange interaction. This leads to driven Rabi oscillations between the $\ket{\uparrow\downarrow}$--state and the $\ket{\downarrow\uparrow}$--state of the two--electron system. The width of the Rabi resonance is proportional to the amplitude of the oscillating exchange. A measurement of the Rabi resonance allows one to narrow the distribution of nuclear spin states and thereby to prolong the spin decoherence time. Further, we study decoherence of the two-electron states due to the hyperfine interaction and give requirements on the parameters of the system in order to initialize in the $\ket{\uparrow\downarrow}$--state and to perform a $\sqrt{\mathrm{SWAP}}$ operation with unit fidelity.
description: v1:9 pages, 1 figure; v2: 13 pages, 2 figures, added section on measurement, to appear in Phys. Rev. B
Additional file 6 of Levels of mannose-binding lectin (MBL) associates with sepsis-related in-hospital mortality in women
Creators: name: Jacobson, Sofie
name: Larsson, Peter
name: Anna-Maja Åberg
name: Johansson, Göran
name: Winsö, Ola
name: Söderberg, Stefan
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 6: Table S4. MBL at baseline and risk for future sepsis development.
AGRICULTURAL TRADE LIBERALISATION AND THE URUGUAY ROUND
Creators: name: Tanner, Carolyn
name: Tanner, Carolyn
Publisher: name: Unknown
Year: 1996
Subjects: International Relations/Trade

description: With the Punta del Este Declaration, agriculture was accorded prominence in the GATT negotiations and, for the first time, national support policies were on the agenda. In this paper, the progress of the negotiations on agriculture is reviewed in an attempt to understand the factors which shaped the final outcome and to assess the likely impact of the round on liberalising agricultural trade. Although the immediate impact is likely to be modest, the round will provide longer term benefits to agricultural trade through the extension of the GATT rules-based system to agriculture. The framework which has been laid should provide a sound basis for future negotiations. Within the multilateral framework, the pace of change is a function of the willingness of all parties to compromise and this is evident in the Uruguay Round's outcome which reflects the European Union's agricultural reform agenda.
Susanne Müller-Bechtel; Von allen Seiten anders. Die akademische Aktstudie 1650–1850
Creators: name: Muhr, Barbara
Publisher: name: Journal für Kunstgeschichte
Year: 2024

description: Rezension zu: Susanne Müller-Bechtel; Von allen Seiten anders. Die akademische Aktstudie 1650–1850 (Kunstwissenschaftliche Studien 194); Berlin/München: Deutscher Kunstverlag 2018; 504 S., 64 farb. u. 400 s/w-Abb.; ISBN 978-3-422-07422-4
description: Journal für Kunstgeschichte, Bd. 24 Nr. 3 (2020): Journal für Kunstgeschichte
THE DEMAND FOR LDC EXPORTS OF PRIMARY COMMODITIES: THE CASE OF THE PHILIPPINES
Creators: name: Warr, Peter G.
name: Wollmer, Frances
name: Warr, Peter G.
name: Wollmer, Frances
Publisher: name: Unknown
Year: 1996
Subjects: Demand and Price Analysis

description: The economic case for taxing exports rests on the elasticity of demand for the exports concerned, but the true values of these elasticities are controversial. The international demand for Philippine exports of coconut products is examined in this paper. The hypothesis that the Philippines is a 'small country' exporter of coconut products is rejected using the specification of a price-normalised demand equation and the implications of this finding are discussed.
Diverse strategic identities induce dynamical states in evolutionary games
Creators: name: Sendiña-Nadal, I.
name: Leyva, I.
name: Perc, M.
name: Papo, D.
name: Jusup, M.
name: Wang, Z.
name: Almendral, J. A.
name: Manshour, P.
name: Boccaletti, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Evolutionary games provide the theoretical backbone for many aspects of our social life: from cooperation to crime, from climate inaction to imperfect vaccination and epidemic spreading, from antibiotics overuse to biodiversity preservation. An important, and so far overlooked, aspect of reality is the diverse strategic identities of individuals. While applying the same strategy to all interaction partners may be an acceptable assumption for simpler forms of life, this fails to account} for the behavior of more complex living beings. For instance, we humans act differently around different people. Here we show that allowing individuals to adopt different strategies with different partners yields a very rich evolutionary dynamics, including time-dependent coexistence of cooperation and defection, system-wide shifts in the dominant strategy, and maturation in individual choices. Our results are robust to variations in network type and size, and strategy updating rules. Accounting for diverse strategic identities thus has far-reaching implications in the mathematical modeling of social games.
description: 9 pages, 4 figures
ON-FARM FACTORS INFLUENCING INVESTMENT IN CROP SOWING MACHINERY
Creators: name: Kingwell, Ross S.
name: Kingwell, Ross S.
Publisher: name: Unknown
Year: 1996
Subjects: Crop Production/Industries
Farm Management

description: Farmers in grain industries make important decisions about investment in crop sowing machinery. This paper shows how some on-farm factors affect profit-maximising levels of investment in crop sowing machinery. The paper examines the effect on optimal investment of discontinuities in sowing opportunities, varietal portfolios and soil portfolios.
MEASURING PRODUCTIVITY GROWTH IN AUSTRALIAN BROADACRE AGRICULTURE
Creators: name: Mullen, John D.
name: Cox, Thomas L.
name: Mullen, John D.
name: Cox, Thomas L.
Publisher: name: Unknown
Year: 1996
Subjects: Productivity Analysis

description: An important source of growth for Australian broadacre agriculture has been technical progress. We compare alternative measures of productivity growth including the traditional Tornqvist-Thiel total factor productivity index; variants of this approach that allow decreasing returns to scale; the Fisher ideal index; other nonparametric measures that do not impose particular functional forms and an econometric estimate from a translog industry cost function. The annual growth in productivity in broadacre agriculture over the period from 1953 to 1994 was in the range of 2.4 to 2.6 per cent and hence was quite robust to measurement technique.
Weak Localization in Metallic Granular Media
Creators: name: Blanter, Ya. M.
name: Vinokur, V. M.
name: Glazman, L. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the interference correction to the conductivity of a medium consisting of metallic grains connected by tunnel junctions. Tunneling conductance between the grains, $e^2g_{\rm T}/π\hbar$, is assumed to be large, $g_{\rm T}\gg 1$. We demonstrate that the weak localization correction to conductivity exhibits a crossover at temperature $T\sim g^2_{\rm T}δ$, where $δ$ is the mean level spacing in a single grain. At the crossover, the phase relaxation time determined by the electron-electron interaction becomes of the order of the dwell time of an electron in a grain. Below the crossover temperature, the granular array behaves as a continuous medium, while above the crossover the weak localization effect is largely a single-junction phenomenon. We elucidate the signatures of the granular structure in the temperature and magnetic field dependence of the weak localization correction.
description: 8 pages, 4 figures. Considerable modifications mostly related to the derivation of WL correction in granular medium
Towards a wave-extraction method for numerical relativity: IV. Testing the quasi-Kinnersley method in the Bondi-Sachs framework
Creators: name: Nerozzi, Andrea
name: Bruni, Marco
name: Re, Virginia
name: Burko, Lior M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a numerical study of the evolution of a non-linearly disturbed black hole described by the Bondi--Sachs metric, for which the outgoing gravitational waves can readily be found using the news function. We compare the gravitational wave output obtained with the use of the news function in the Bondi--Sachs framework, with that obtained from the Weyl scalars, where the latter are evaluated in a quasi-Kinnersley tetrad. The latter method has the advantage of being applicable to any formulation of Einstein's equations---including the ADM formulation and its various descendants---in addition to being robust. Using the non-linearly disturbed Bondi--Sachs black hole as a test-bed, we show that the two approaches give wave-extraction results which are in very good agreement. When wave extraction through the Weyl scalars is done in a non quasi-Kinnersley tetrad, the results are markedly different from those obtained using the news function.
description: 12 pages, 11 figures
THE AUSTRALIAN AGRICULTURAL ECONOMICS PROFESSION: AN APPRAISAL OF SOME CURRENT TRENDS
Creators: name: Ahmadi-Esfahani, Fredoun Z.
name: Bonnor, Kylie A.
name: Ahmadi-Esfahani, Fredoun Z.
name: Bonnor, Kylie A.
Publisher: name: Unknown
Year: 1996
Subjects: Teaching/Communication/Extension/Profession

description: Using the results of the first part of their 1994 membership survey, Ahmadi-Esfahani and Brakey (1996) examined the structure, conduct and performance of the Australian Agricultural and Resource Economics Society qualitatively. This paper extends that analysis by appraising some current trends in the Australian agricultural economics profession quantitatively. It concentrates on the second part of the survey to address a number of fundamental questions. A comparison of the US and Australian agricultural economics professions is made. The implications of the analysis for the product mix of the Society are explored.
On the influence of supra-thermal particle acceleration on the morphology of low-Mach, high-$β$ shocks
Creators: name: van Marle, Allard Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: J.2
subject: 70-08

description: When two galaxy clusters encounter each other, the interaction results in a collisionless shock that is characterized by a low (1-4) sonic Mach number, and a high Alfv{é}nic Mach number. Our goal is to determine if, and to what extent, such shocks can accelerate particles to sufficient velocities that they can contribute to the cosmic ray spectrum. We combine two different computational methods, magnetohydrodynamics (MHD) and particle-in-cell (PIC) into a single code that allows us to take advantage of the high computational efficiency of MHD while maintaining the ability to model the behaviour of individual non-thermal particles. Using this method, we perform a series of simulations covering the expected parameter space of galaxy cluster collision shocks. Our results show that for shocks with a sonic Mach number below 2.25 no diffusive shock acceleration can take place because of a lack of instabilities in the magnetic field, whereas for shocks with a sonic Mach number $\geq\,3$ the acceleration is efficient and can accelerate particles to relativistic speeds. In the regime between these two extremes, diffusive shock acceleration can occur but is relatively inefficient because of the time- and space-dependent nature of the instabilities. For those shocks that show efficient acceleration, the instabilities in the upstream gas increase to the point where they change the nature of the shock, which, in turn, will influence the particle injection process.
description: 12 pages, 18 figures, accepted for publication in MNRAS
Flavour Independent Searches for Hadronically Decaying Neutral Higgs Bosons
Creators: name: The DELPHI Collaboration
name: Abdallah, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper describes flavour independent searches for hadronically decaying neutral Higgs bosons in the data collected by the DELPHI experiment at LEP, at centre-of-mass energies between 189 and 209 GeV. The collected data-set corresponds to an integrated luminosity of around 610 pb^{-1}. The e+e- -> hA and e+e- -> hZ processes are considered, with direct Higgs boson decays into hadrons. No evidence for Higgs boson production is found, and cross-section limits are set as a function of the Higgs boson masses. No explicit assumptions are made on the underlying physics beyond the Standard Model, allowing interpretation of the data in a large class of models.
description: 26 pages, 10 figures
On the time delay in binary systems
Creators: name: Tartaglia, Angelo
name: Ruggiero, Matteo Luca
name: Nagar, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The aim of this paper is to study the time delay on electromagnetic signals propagating across a binary stellar system. We focus on the antisymmetric gravitomagnetic contribution due to the angular momentum of one of the stars of the pair. Considering a pulsar as the source of the signals, the effect would be manifest both in the arrival times of the pulses and in the frequency shift of their Fourier spectra. We derive the appropriate formulas and we discuss the influence of different configurations on the observability of gravitomagnetic effects. We argue that the recently discovered PSR J0737-3039 binary system does not permit the detection of the effects because of the large size of the eclipsed region.
description: 7 pages, 2 eps figures, RevTex, to appear in Physical Review D
The festal letter of the Pope Matthew the Poor
Creators: name: Yūsuf, Yūḥannā Nasīm
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 93 (2009): Oriens christianus, Band 93
Additional file 1 of Shared decision making in surgery: a scoping review of patient and surgeon preferences
Creators: name: Shinkunas, Laura A.
name: Klipowicz, Caleb J.
name: Carlisle, Erica M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Search strategies for Medline, Embase, and Cochrane databases.
RISK ATTITUDE, PLANTING CONDITIONS AND THE VALUE OF SEASONAL FORECASTS TO A DRYLAND WHEAT GROWER
Creators: name: Marshall, Graham R.
name: Parton, Kevin A.
name: Hammer, G.L.
name: Marshall, Graham R.
name: Parton, Kevin A.
name: Hammer, G.L.
Publisher: name: Unknown
Year: 1996
Subjects: Risk and Uncertainty

description: The value of a seasonal forecasting system based on phases of the Southern Oscillation was estimated for a representative dryland wheat grower in the vicinity of Goondiwindi. In particular the effects on this estimate of risk attitude and planting conditions were examined. A recursive stochastic programming approach was used to identify the grower's utility-maximising action set in the event of each of the climate patterns over the period 1894-1991 recurring in the imminent season. The approach was repeated with and without use of the forecasts. The choices examined were, at planting, nitrogen application rate and cultivar and, later in the season, choices of proceeding with or abandoning each wheat activity. The value of the forecasting system was estimated as the maximum amount the grower could afford to pay for its use without expected utility being lowered relative to its non-use.
Der palästinensische Rekonziliationsritus für Apostaten
Creators: name: Brakmann, Heinzgerd
name: Chronz, Tinatin
name: Zanetti, Ugo
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 93 (2009): Oriens christianus, Band 93
AN ECONOMIC TOOL FOR EVALUATING DISEASE MANAGEMENT IN THE JARRAH FORESTS OF WESTERN AUSTRALIA
Creators: name: Dole, David D.
name: Brennan, Paul
name: Dole, David D.
name: Brennan, Paul
Publisher: name: Unknown
Year: 1996
Subjects: Research Methods/ Statistical Methods
Risk and Uncertainty

description: A pathogenic, soil-borne fungus has been gradually spreading through the jarrah forest of Western Australia for most of this century. On some sites this fungus can cause almost total forest destruction. Infection is incurable and the effects are irreversible. This paper develops a means for evaluating disease control measures and identifying the optimal level of protection. Standard protection measures are warranted for high and moderate impact sites, over a wide range of risks. Increased expenditure on forest protection is warranted for high and moderate impact sites at especially high risk.
The importance of cytoskeleton in neutrophil-cardiomyocyte interaction
Creators: name: Davani, Ehsan Y.
Publisher: name: University of British Columbia
Year: 2009

description: Activated polymorphonuclear neutrophils (PMN) contribute to decreased myocardial contractility after ischemia-reperfusion and in models of sepsis. To determine how PMN could contribute to myocardial dysfunction, rat ventricular cardiomyocytes were isolated and incubated with TNFα 20 ng/mL, IL-1β 20 ng/mL or LPS 10 pg/mL for 3 hours. Cardiomyocytes were then washed, co-cultured with isolated rat PMN for 2 hours, and electrically stimulated to determine fractional shortening (FS) using videomicroscopy. PMN co-cultured with activated cardiomyocytes reduced fractional shortening by 30±10% (p<0.001). Fractional shortening of cardiomyocytes with adherent PMN decreased by - 2:8±0.3% per adherent PMN (p<0.001). Fixing PMN with paraformaldehyde or gluteraldehyde did not prevent PMN-mediated decreases in cardiomyocyte fractional shortening. PMN adherence and the PMN-mediated decrease in fractional shortening were prevented by anti-ICAM-1 and anti-CD18 antibodies. Reduced fractional shortening by 36 ± 3% was reproduced in the absence of PMN by ICAM-1 binding using cross-linking antibodies. To determine whether this reduction in fractional shortening could be through coupling of ICAM-1 receptors to the cardiomyocyte cytoskeleton, we disrupted F-actin filament assembly by pre-incubating cardiomyocytes for with cytochalasin D (10 μM) or latrunculin A (10 μM) respectively for 2 hours. These compounds did not prevent PMN adherence but significantly reduced the effect of adherent PMN on cardiomyocyte contractility. Latruculin A and Cytochalasin D also reduced the effects of ICAM-1 cross-linking mediated decrease in cardiomyocyte contractility. Inhibiting MEK1 using PD98059 had no effect while inhibition of RhoA using HA-1077 prevented the ICAM-1 mediated decrease in cardiomyocyte contractility. Immunofluorescent staining demonstrated that ICAM-1 cross linking increased total focal adhesion kinase (FAK) expression in the cortical cytoskeleton. Focal adhesion kinase (FAK) phosphorylation on tyrosin 397 was lower in the 3 hours ICAM-1 cross-linked group compared to control. Erk1/2 and P38 MAPK were not significantly different in the two groups. We conclude that PMN decrease cardiomyocyte contractility by binding to ICAM-1, which mediates part of the decreased contractility through RhoA and the cardiomyocyte cytoskeleton.
ECONOMIC ANALYSIS OF THE PROPOSED NORTH DAKOTA WHEAT POOL; SUMMARY
Creators: name: Koo, Won W.
name: Nganje, William E.
name: Johnson, D. Demcey
name: Park, Joon J.
name: Taylor, Richard D.
name: Koo, Won W.
name: Nganje, William E.
name: Johnson, D. Demcey
name: Park, Joon J.
name: Taylor, Richard D.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: marketing pool
subject: market power
subject: efficiency gains
subject: durum wheat
subject: hard red spring wheat
subject: pool price
subject: organizational structure
subject: operating costs

description: The ND Durum Wheat Pool may provide additional revenue to durum wheat producers by raising the domestic prices in the North American market with full cooperation from the Canadian Wheat Board. The pool also could provide additional revenue to its members by improving marketing efficiency. On the other hand, the ND Spring Wheat Pool is less likely to provide additional revenue to spring wheat producers by raising domestic prices, mainly because hard red spring and winter wheat are highly substitutable. Efficiency gains also could be smaller than for durum wheat.
Georges Lemaitre and the Foundations of Big Bang Cosmology
Creators: name: Mitton, Simon A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Georges Lemaitre was a remarkable contributor to the advancement of cosmology in the heady years following two great revolutions in theoretical physics in the last century: general relativity and quantum mechanics. In the present century, the impact of his key publications has advanced from very little to enormous. The Big Bang universe has reigned supreme in cosmology for sixty years, during which time it has acquired paradigmatic status as the most important event in the entire history of cosmology. Lemaitre was the first cosmologist to estimate the rate of expansion of the universe, later known as the Hubble constant. In 2018 the International Astronomical Union renamed the Hubble law as the Hubble-Lemaitre law in acknowledgement of his foundational contribution to the theory of the expanding universe. This biographical review examines: (a) factors that influenced his approach to the philosophy of science, particularly cosmology; (b) his engagement with the network of contemporary cosmologists; and (c) the circumstances of his withdrawal from research in cosmology and the further promotion of the fireworks universe after the early 1930s.
description: 19 pages, 8 images (photographs)