cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Price is (Probably) Right: Learning Market Equilibria from Samples
Creators: name: Viswanathan, Vignesh
name: Lev, Omer
name: Patel, Neel
name: Zick, Yair
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Equilibrium computation in markets usually considers settings where player valuation functions are known. We consider the setting where player valuations are unknown; using a PAC learning-theoretic framework, we analyze some classes of common valuation functions, and provide algorithms which output direct PAC equilibrium allocations, not estimates based on attempting to learn valuation functions. Since there exist trivial PAC market outcomes with an unbounded worst-case efficiency loss, we lower-bound the efficiency of our algorithms. While the efficiency loss under general distributions is rather high, we show that in some cases (e.g., unit-demand valuations), it is possible to find a PAC market equilibrium with significantly better utility.
Hemiphaedusa chichiensis Nordsieck 2005
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Clausiliidae
Hemiphaedusa
Hemiphaedusa chichiensis

description: chichiensis, Hemiphaedusa antuensis, Nordsieck, 2005
 Hemiphaedusa (Hemizaptyx) antuensis chichiensis Nordsieck, 2005a: 49–50 (pl. 3, fig. 23). Gastropoda, Clausiliidae
 Paratype: MZSP 95497.
 Locality: Taiwan, Hualien Co., W of Chi Chi (ca. 40 km S of Hualien), 23°42.726' N, 121°32.596' E (type locality), 13 Apr. 2003.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. The specimen listed above is a remainder of a 10-specimen paratype lot deposited by Nordsieck in Hemmen’s collection.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on pages 15-16, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
ANALYSIS OF BORROWER AND LENDER USE OF INTEREST ASSISTANCE ON FSA GUARANTEED FARM LOANS
Creators: name: Ahrendsen, Bruce L.
name: Koenig, Steven R.
name: Dixon, Bruce L.
name: Dodson, Charles B.
name: Settlage, Latisha A.
name: Ahrendsen, Bruce L.
name: Koenig, Steven R.
name: Dixon, Bruce L.
name: Dodson, Charles B.
name: Settlage, Latisha A.
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Agricultural Finance

description: The Farm Security and Rural Investment Act of 2002 made permanent the interest assistance program for the Farm Service Agency's guaranteed loans, authorized a significant increase in funding for the program, and targeted funding for beginning farmers and ranchers. The research presented here provides a basic descriptive analysis of past use. In particular, borrower data for Federal fiscal years 1985 through 2002 are examined in several dimensions. These dimensions include geographic, borrower type, lender type, interest rate differentials, percent guarantee, and the status of the loan as to whether a loss claim was paid or the loan remained active. Even though the program has been in existence for more than 15 years, little is known about its impact and utilization. This research is an initial step in documenting usage of the program.
SSSPM J1549$-$3544 Is Not a White Dwarf
Creators: name: Farihi, J.
name: Wood, P. R.
name: Stalder, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectroscopy and photometry demonstrate that SSSPM J1549$-$3544 is not a cool white dwarf but a high velocity metal-poor halo star.
description: 8 pages, 1 figure, 2 tables, accepted to ApJ Letters
SLOVAK FARM FINANCIAL PROBLEMS: PROFITABILITY, DEBT, LATE PAYMENT, AND LACK OF CREDIT
Creators: name: Ahrendsen, Bruce L.
name: Ahrendsen, Bruce L.
Publisher: name: Unknown
Year: 2000
Subjects: Agricultural Finance

description: The paper assesses the farm financial problems in the Slovak Republic and provides recommendations for improving the situation. Although positive changes have occurred in the financing of agriculture in the Slovak Republic since becoming an independent country in 1993, problems still remain. Many farms remain unprofitable, farms still have old debt that was issued prior to 1990 and uncollectible debt that was issued since 1990, farms are not paid promptly for the products they sell, and there continues to be difficulty in farms attracting credit. Recommendations for improving the delinquent farm liquidation decision, farm profitability, prompt payment, and credit access are provided.
Maczewski, Christoph: Die Zoi-Bewegung Griechenlands
Creators: name: Boeckler, Richard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 20 Nr. 1 (1971): Ökumenische Rundschau, Band 20, Heft 1
Effective cross-Kerr nonlinearity and robust phase gates with trapped ions
Creators: name: Semiao, F. L.
name: Vidiella-Barranco, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive an effective Hamiltonian that describes a cross-Kerr type interaction in a system involving a two-level trapped ion coupled to the quantized field inside a cavity. We assume a large detuning between the ion and field (dispersive limit) and this results in an interaction Hamiltonian involving the product of the (bosonic) ionic vibrational motion and field number operators. We also demonstrate the feasibility of operation of a phase gate based on our hamiltonian. The gate is insensitive to spontaneous emission, an important feature for the practical implementation of quantum computing.
description: Included discussion of faster gates (Lamb-Dicke regime), Corrected typos, and Added references
Quantifying the unknown impact of segmentation uncertainty on image-based simulations
Creators: name: Krygier, Michael C.
name: LaBonte, Tyler
name: Martinez, Carianne
name: Norris, Chance
name: Sharma, Krish
name: Collins, Lincoln N.
name: Mukherjee, Partha P.
name: Roberts, Scott A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Image-based simulation, the use of 3D images to calculate physical quantities, fundamentally relies on image segmentation to create the computational geometry. However, this process introduces image segmentation uncertainty because there is a variety of different segmentation tools (both manual and machine-learning-based) that will each produce a unique and valid segmentation. First, we demonstrate that these variations propagate into the physics simulations, compromising the resulting physics quantities. Second, we propose a general framework for rapidly quantifying segmentation uncertainty. Through the creation and sampling of segmentation uncertainty probability maps, we systematically and objectively create uncertainty distributions of the physics quantities. We show that physics quantity uncertainty distributions can follow a Normal distribution, but, in more complicated physics simulations, the resulting uncertainty distribution can be both nonintuitive and surprisingly nontrivial. We also establish that simply bounding the uncertainty can fail in situations that are sensitive to image segmentation. While our work does not eliminate segmentation uncertainty, it makes visible the previously unrecognized range of uncertainty currently plaguing image-based simulation, enabling more credible simulations.
Active Carbon and Oxygen Shell Burning Hydrodynamics
Creators: name: Meakin, Casey
name: Arnett, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have simulated 2.5$\times10^3$ s of the late evolution of a $23 \rm M_\odot$ star with full hydrodynamic behavior. We present the first simulations of a multiple-shell burning epoch, including the concurrent evolution and interaction of an oxygen and carbon burning shell. In addition, we have evolved a 3D model of the oxygen burning shell to sufficiently long times (300 s) to begin to assess the adequacy of the 2D approximation. We summarize striking new results: (1) strong interactions occur between active carbon and oxygen burning shells, (2) hydrodynamic wave motions in nonconvective regions, generated at the convective-radiative boundaries, are energetically important in both 2D and 3D with important consequences for compositional mixing, and (3) a spectrum of mixed p- and g-modes are unambiguously identified with corresponding adiabatic waves in these computational domains. We find that 2D convective motions are exaggerated relative to 3D because of vortex instability in 3D. We discuss the implications for supernova progenitor evolution and symmetry breaking in core collapse.
description: 5 pages, 4 figures in emulateapj format. Accepted for publication in ApJ Letters. High resolution figure version available at http://spinach.as.arizona.edu
Kinetics calculation on the shear viscosity in hot QED at finite density
Creators: name: Liu, Hui
name: Hou, Defu
name: Li, Jiarong
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The shear viscosity of QED plasma at finite temperature and density is calculated by solving Boltzmann equation with variational approach. The result shows the small chemical potential enhances the viscosity in leading-log order by adding a chemical potential quadratic term to the viscosity for the pure temperature environment.
[Brev til DKNVS]
Creators: name: Klüwer, Lorentz Diderich
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1821

description: Vedr. bl.a. Klüwers kart over slaget ved Stiklestad tegnet på oppdrag av Götiska förbundet i Sverige
On \emptyset-definable elements in a field
Creators: name: Tyszka, Apoloniusz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic (math.LO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 03C60, 12L12

description: Let K be a field and \tilde{K} denote the set of all r \in K for which there exists a finite set A(r) with {r} \subseteq A(r) \subseteq K such that each mapping f:A(r) \to K that satisfies: if 1 \in A(r) then f(1)=1, if a,b \in A(r) and a+b \in A(r) then f(a+b)=f(a)+f(b), if a,b \in A(r) and a \cdot b \in A(r) then f(a \cdot b)=f(a) \cdot f(b), satisfies also f(r)=r. We prove: \tilde{K} is a subfield of K, \tilde{K}={x \in K: {x} is existentially first-order definable in the language of rings without parameters}, if some subfield of K is algebraically closed then \tilde{K} is the prime field in K, some elements of \tilde{K} are transcendental over Q (over R, over Q_p) for a large class of fields K that are finitely generated over Q (that extend R, that extend Q_p), if K is a Pythagorean subfield of R, t is transcendental over K, and r \in K is recursively approximable, then {r} is \emptyset-definable in (K(t),+,\cdot,0,1), if a real number r is recursively approximable then {r} is existentially \emptyset-definable in (R,+,\cdot,0,1,U) for some unary predicate U which is implicitly \emptyset-definable in (R,+,\cdot,0,1).
description: 15 pages, LaTeX2e, the version which will appear in Collectanea Mathematica
Triplodon chodo Mansur & Pimpao 2008
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Unionoida
Hyriidae
Triplodon
Triplodon chodo

description: chodo, Triplodon Mansur & Pimpão, 2008
 Triplodon chodo Mansur & Pimpão, 2008: 112–115 (figs 1–6).
Bivalvia, Hyriidae
 Paratype: MZSP 86012.
 Locality: Brazil, Amazonas, Novo Aripuanã, River Aripuanã, between 06º00'42.3" S, 60º11'42.7" W and 06º00'21.7" S, 60º11'45.1" W, 9 Sep. 2004.
 Collector: D.M. Pimpão and Sotero.
 Preservation: Dry
 Remarks: Former INPA 331a.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 16, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
BENEFITS TRANSFER AND COUNT DATA TRAVEL COST MODELS: AN APPLICATION AND TEST OF A VARYING PARAMETER APPROACH WITH GUIDED WHITEWATER RAFTING
Creators: name: Bowker, James Michael
name: English, Donald B.K.
name: Bergstrom, John C.
name: Bowker, James Michael
name: English, Donald B.K.
name: Bergstrom, John C.
Publisher: name: Unknown
Year: 1997
Subjects: subject: Resource /Energy Economics and Policy
subject: benefits transfer
subject: whitewater rafting
subject: travel cost
subject: count data models
subject: varying parameters

description: We combine currently popular count data methods with earlier work by Vaughan and Russell on varying parameter travel cost models to model trip demand and calculate consumer surplus. We test and reject the hypothesis that per trip consumer surplus from guided rafting is invariant to river characteristics. We then develop and test a series of benefit transfer functions against benefits derived from individual river models. Our findings suggest that this flexible form of count data model offers considerable promise as a benefit transfer function.
Solution Independent Analysis of Black Hole Entropy in Brick Wall Model
Creators: name: Kenmoku, M.
name: Nandi, K. K.
name: Shigemoto, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the brick wall regularization of 't Hooft, the entropy of non-extreme and extreme black holes is investigated in a general static, spherically symmetric spacetime. We classify the singularity in the entropy by introducing a {\it new} index $δ$ with respect to the brick wall cut-off $ε$. The leading contribution to entropy for non-extreme case $(δ\neq 0)$ is shown to satisfy the area law with quadratic divergence with respect to the invariant cut-off $ε_{\rm inv}$ while the extreme case $(δ=0)$ exhibits logarithmic divergence or constant value with respect to $ε$. The general formula is applied to Reissner-Nordström, dilaton and brane-world black holes and we obtain consistent results.
description: 19 pages
Opisthostoma christae Maassen 2001
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Diplommatinidae
Opisthostoma
Opisthostoma christae

description: christae, Opisthostoma Maassen, 2001
 Opisthostoma (Plectostoma) christae Maassen, 2001: 52–53 (figs 3, 10–11).
Gastropoda, Diplommatinidae
 Paratype: MZSP 95472 (Fig. 2 A–B).
 Locality: Malaysia, Kelantan, rd. #8, Gua Musang to Machang, the right side of km 24.9, 04°55.022' N, 102°06.934' E.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. Locality and measurements compare fittingly with a 20-specimen paratype lot originally deposited in Hemmen’s collection (Maassen 2001).
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 16, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Norm resolvent convergence of discretized Fourier multipliers
Creators: name: Cornean, Horia
name: Garde, Henrik
name: Jensen, Arne
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 47A10, 47A58, 42B15, (47A11, 47B39)

description: We prove norm estimates for the difference of resolvents of operators and their discrete counterparts, embedded into the continuum using biorthogonal Riesz sequences. The estimates are given in the operator norm for operators on square integrable functions, and depend explicitly on the mesh size for the discrete operators. The operators are a sum of a Fourier multiplier and a multiplicative potential. The Fourier multipliers include the fractional Laplacian and the pseudo-relativistic free Hamiltonian. The potentials are real, bounded, and Hölder continuous. As a side-product, the Hausdorff distance between the spectra of the resolvents of the continuous and discrete operators decays with the same rate in the mesh size as for the norm resolvent estimates. The same result holds for the spectra of the original operators in a local Hausdorff distance.
description: 26 pages
Unqueched Kogut-Susskind quark propagator in Lattice Landau Gauge QCD
Creators: name: Furui, Sadataka
name: Nakajima, Hideo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Quark propagators of the unquenched Kogut-Susskind(KS) fermion obtained from the gauge configurations of the MILC collaboration are measured after Landau gauge fixing and using the Staple+Naik action. Presence of the $\bar q q$ condensates and $A^2$ condensates in the dynamical mass $M(q)$ and the quark wave function renormalization $Z_ψ(q^2)$ are investigated. We obtain the correlation of the renormalization factor of the running coupling taken at $μ\sim 6$GeV and that of the quark wave function renormalization $Z_ψ(q^2)$ of the Staple+Naik action. The mass function $\displaystyle M(q)$ is finite at $q=0$ and its chiral limit is $\sim 0.38$GeV. We compared the results corrected by the scale of the vertex renormalization and the tadpole renormalization with the corresponding values obtained by the Asqtad action without renormalization and observed good agreement.Implication of infrared finite $Z_2(q)=1/Z_ψ(q^2)$ to the Kugo-Ojima confinement criterion is discussed.
description: 8 pages 10 figures, typos corrected, to be published in Phys. Rev.D(2006)
Fuzzy measurements and coarse graining in quantum many-body systems
Creators: name: Pineda, Carlos
name: Davalos, David
name: Viviescas, Carlos
name: Rosado, Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the quantum map formalism, we provide a framework to construct fuzzy and coarse grained quantum states of many-body systems that account for limitations in the resolution of real measurement devices probing them. The first set of maps handles particle-indexing errors, while the second deals with the effects of detectors that can only resolve a fraction of the system constituents. We apply these maps to a spin-$1/2$ XX-chain obtaining a blurred picture of the entanglement generation and propagation in the system. By construction, both maps are simply related via a partial trace, which allow us to concentrate on the properties of the former. We fully characterize the fuzzy map, identifying its symmetries and invariants spaces. We show that the volume of the tomographically accessible states decreases at a double exponential rate in the number of particles, imposing severe bounds to the ability to read and use information of a many-body quantum system.
description: 8 pages, 4 figures
Analysis of finite-volume discrete adjoint fields for two-dimensional compressible Euler flows
Creators: name: Peter, Jacques
name: Renac, Florent
name: Labbé, Clément
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 65M12, 65M08

description: This work deals with a number of questions relative to the discrete and continuous adjoint fields associated with the compressible Euler equations and classical aerodynamic functions. The consistency of the discrete adjoint equations with the corresponding continuous adjoint partial differential equation is one of them. It is has been established or at least discussed only for a handful of numerical schemes and a contribution of this article is to give the adjoint consistency conditions for the 2D Jameson-Schmidt-Turkel scheme in cell-centred finite-volume formulation. The consistency issue is also studied here from a new heuristic point of view by discretizing the continuous adjoint equation for the discrete flow and adjoint fields. Both points of view prove to provide useful information. Besides, it has been often noted that discrete or continuous inviscid lift and drag adjoint exhibit numerical divergence close to the wall and stagnation streamline for a wide range of subsonic and transonic flow conditions. This is analyzed here using the physical source term perturbation method introduced in reference [Giles and Pierce, AIAA Paper 97-1850, 1997]. With this point of view, the fourth physical source term of appears to be the only one responsible for this behavior. It is also demonstrated that the numerical divergence of the adjoint variables corresponds to the response of the flow to the convected increment of stagnation pressure and diminution of entropy created at the source and the resulting change in lift and drag.
EMERGENCE OF U.S. ORGANIC AGRICULTURE: CAN WE COMPETE?
Creators: name: Klonsky, Karen
name: Tourte, Laura
name: Thompson, Gary D.
name: Lohr, Luanne
name: Krissoff, Barry
name: Klonsky, Karen
name: Tourte, Laura
name: Thompson, Gary D.
name: Lohr, Luanne
name: Krissoff, Barry
Publisher: name: Unknown
Year: 1998
Subjects: subject: Industrial Organization
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: production
subject: marketing
subject: industry structure
subject: international trade
subject: certification
subject: organic agriculture

description: This compilation of papers for principal papers session PP-03 at the AAEA 1998 Annual Meeting assesses the current status of the organic agriculture industry in the United States. Paper topics address production, market and certification issues faced by the industry, research challenges and emerging conditions shaping domestic and international markets.
Techniques for estimating coefficient of performance of industrial cooling systems
Creators: name: Chawathe, Amit Raman
Publisher: name: No Publisher Supplied
Year: 2020

description: Chiller plant systems often have the highest consumption of energy in a facility. Hence, it becomes essential for estimating the coefficient of performance (COP) of an industrial cooling system to ensure efficient use of resources. Various chiller plant systems have been analyzed to establish techniques or methodologies for determining the COP. Performance degradation with age and recent new technologies create an enormous range of COPs from 2 to 8 or more. After analyzing, it is found that the critical parameter for determining the COP of any type of chiller plant system is the mass flow rate. Remarkably, many industrial cooling systems do not measure mass flow rate in any part of the chilled water system and therefore cannot calculate COP. Good energy efficiency practice then requires that techniques be developed to estimate mass flow rate in industrial cooling systems in situ, without shutting down the system and installing measurement equipment. Three methodologies have been examined for measuring the mass flow rate of the condenser water loop. The first method looks at the cooling tower part of the condenser water loop to determine the mass flow rate of the condenser water by isolating some of the valves. The second method makes use of pump curves with relation to the differential pressure to calculate the flow rate of either the chilled water or the condenser water. Lastly, an ultrasonic flow meter is considered as a means to determine the flow rate in a running system. The mass flow rate is then used in the estimation of COP of the chiller cooling tower system.
Nonperturbative $O(a)$ improvement of the Wilson quark action with the RG-improved gauge action using the Schrödinger functional method
Creators: name: CP-PACS
name: Collaborations, JLQCD
name: :
name: Aoki, S.
name: Fukugita, M.
name: Hashimoto, S.
name: Ishikawa, K-I.
name: Ishizuka, N.
name: Iwasaki, Y.
name: Kanaya, K.
name: Kaneko, T.
name: Kuramashi, Y.
name: Okawa, M.
name: Takeda, S.
name: Taniguchi, Y.
name: Tsutsui, N.
name: Ukawa, A.
name: Yamada, N.
name: Yoshié, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We perform a nonperturbative determination of the $O(a)$-improvement coefficient $c_{\rm SW}$ and the critical hopping parameter $κ_c$ for $N_f$=3, 2, 0 flavor QCD with the RG-improved gauge action using the Schrödinger functional method. In order to interpolate $c_{\rm SW}$ and $κ_c$ as a function of the bare coupling, a wide range of $β$ from the weak coupling region to the moderately strong coupling points used in large-scale simulations is studied. Corrections at finite lattice size of $O(a/L)$ turned out to be large for the RG-improved gauge action, and hence we make the determination at a size fixed in physical units using a modified improvement condition. This enables us to avoid $O(a)$ scaling violations which would remain in physical observables if $c_{\rm SW}$ determined for a fixed lattice size $L/a$ is used in numerical simulations.
description: 27 pages, 5 figures. Version appearing in PRD. \beta dependence of c_sw and kappa_c in two flavor QCD is reanalyzed with a different fit form while no change is made in the quenched and three-flavor QCD
Interaction-Assisted Reversal of Thermopower with Ultracold Atoms
Creators: name: Häusler, Samuel
name: Fabritius, Philipp
name: Mohan, Jeffrey
name: Lebrat, Martin
name: Corman, Laura
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study thermoelectric currents of neutral, fermionic atoms flowing through a mesoscopic channel connecting a hot and a cold reservoir across the superfluid transition. The thermoelectric response results from a competition between density-driven diffusion from the cold to the hot reservoir and the channel favoring transport of energetic particles from hot to cold. We control the relative strength of both contributions to the thermoelectric response using an external optical potential in a nearly non-interacting and a strongly-interacting system. Without interactions, the magnitude of the particle current can be tuned over a broad range but is restricted to flow from hot to cold in our parameter regime. Strikingly, strong interparticle interactions additionally reverse the direction of the current. We quantitatively model ab initio the non-interacting observations and qualitatively explain the interaction-assisted reversal by the reduction of entropy transport due to pairing correlations. Our work paves the way to studying the coupling of spin and heat in strongly correlated matter using spin-dependent optical techniques with cold atoms.
description: 7 + 11 pages, 4 + 5 figures
Spixia coltrorum Simone 2012
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Mollusca
Gastropoda
Neogastropoda
Conidae
Spixia
Spixia coltrorum

description: coltrorum, Conasprelloides Petuch & Myers, 2014
 Conasprelloides coltrorum Petuch & Myers, 2014a: 36–37 (fig. 1A–B).
Gastropoda, Conidae
 Holotype: MZSP 116141.
 Locality: Brazil, Espírito Santo, off Vitória, 60 m depth.
 Collectors: Local fishermen.
 Preservation: Dry.
 Remarks: This species was recombined as Conus coltrorum by Puillandre et al. (2015).
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 16, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Fluvial mountain whitefish (prosopium williamsoni) in the Upper Fraser River: a morphological, behavioural, and genetic comparison of foraging forms
Creators: name: Troffe, Peter M.
Publisher: name: University of British Columbia
Year: 2009

description: Members of the family Coregonidae are notoriously plastic in their morphology and life histories, but in British Columbia there is little evidence of the kind of variation in trophic structures seen elsewhere in North America and Europe. There is, however, one exception — the mountain whitefish, Prosopium williamsoni. Museum, and field collections of fluvial mountain whitefish from the upper Peace, Columbia, and Fraser river systems commonly contain two sympatry phenotypes of fluvial mountain whitefish. One form (the most common) is characterized by a short blunt snout while, the other form has a long slightly upturned snout. I refer to this latter from as the 'pinocchio' form. Individuals with the pinocchio nose are not confined to British Columbia but are also known from isolated populations in Utah, the upper Missouri system, and the Olympic Peninsula in Washington State. The phenotypes from the Upper Fraser system differ in morphological features usually associated with trophic adaptations including gill raker counts and cranial architecture. Furthermore, the forms exhibit different foraging behaviours in sympatry, suggesting they occupy different foraging niches. A mitochondrial DNA survey reveals that pinocchio and normal mountain whitefish from Upper Fraser River tributaries have significantly different haplotype frequency distributions. The nature of the haplotype variation suggests either asymmetrical reproductive isolation — with normal males avoiding pinocchio females — or strong selection against hybrid progeny.
Mutual information--based approach to adaptive homodyne detection of quantum optical states
Creators: name: Bargatin, Igor
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: I propose an approach to adaptive homodyne detection of digitally modulated quantum optical pulses in which the phase of the local oscillator is chosen to maximize the average information gain, i.e., the mutual information, at each step of the measurement. I study the properties of this adaptive detection scheme by considering the problem of classical information content of ensembles of coherent states. Using simulations of quantum trajectories and visualizations of corresponding measurement operators, I show that the proposed measurement scheme adapts itself to the features of each ensemble. For all considered ensembles of coherent states, it consistently outperforms heterodyne detection and Wiseman's adaptive scheme for phase measurements [H.M. Wiseman, Phys. Rev. Lett. 75, 4587 (1995)].
description: Submutted to Phys. Rev. A
Causal Contextual Prediction for Learned Image Compression
Creators: name: Guo, Zongyu
name: Zhang, Zhizheng
name: Feng, Runsen
name: Chen, Zhibo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Over the past several years, we have witnessed impressive progress in the field of learned image compression. Recent learned image codecs are commonly based on autoencoders, that first encode an image into low-dimensional latent representations and then decode them for reconstruction purposes. To capture spatial dependencies in the latent space, prior works exploit hyperprior and spatial context model to build an entropy model, which estimates the bit-rate for end-to-end rate-distortion optimization. However, such an entropy model is suboptimal from two aspects: (1) It fails to capture spatially global correlations among the latents. (2) Cross-channel relationships of the latents are still underexplored. In this paper, we propose the concept of separate entropy coding to leverage a serial decoding process for causal contextual entropy prediction in the latent space. A causal context model is proposed that separates the latents across channels and makes use of cross-channel relationships to generate highly informative contexts. Furthermore, we propose a causal global prediction model, which is able to find global reference points for accurate predictions of unknown points. Both these two models facilitate entropy estimation without the transmission of overhead. In addition, we further adopt a new separate attention module to build more powerful transform networks. Experimental results demonstrate that our full image compression model outperforms standard VVC/H.266 codec on Kodak dataset in terms of both PSNR and MS-SSIM, yielding the state-of-the-art rate-distortion performance.
description: We add some descriptions for the improved quantization in the latest arxiv version
PRODUCTION AND PROFITABILITY RESPONSES TO ALTERNATIVE PROTEIN SOURCES IN BROILER RATIONS
Creators: name: Costa, Ecio De Farias
name: Miller, Bill R.
name: Houston, Jack E.
name: Pesti, Gene M.
name: Costa, Ecio De Farias
name: Miller, Bill R.
name: Houston, Jack E.
name: Pesti, Gene M.
Publisher: name: Unknown
Year: 2000
Subjects: Livestock Production/Industries

description: Profitability of using peanut meal as an alternative protein source in broiler production was investigated through the development of a two-stage mathematical program that optimizes broiler production. The concept of value of marginal product incorporated in this model allows demand adjustments before decisions on the production and processing take place.
The Anomalous Early Afterglow of GRB 050801
Creators: name: Rykoff, E. S.
name: Mangano, V.
name: Yost, S. A.
name: Sari, R.
name: Aharonian, F.
name: Akerlof, C. W.
name: Ashley, M. C. B.
name: Barthelmy, S. D.
name: Burrows, D. N.
name: Gehrels, N.
name: Gogus, E.
name: Horns, D.
name: Kiziloglu, U.
name: Krimm, H. A.
name: McKay, T. A.
name: Ozel, M.
name: Phillips, A.
name: Quimby, R. M.
name: Rowell, G.
name: Rujopakarn, W.
name: Schaefer, B. E.
name: Smith, D. A.
name: Swan, H. F.
name: Vestrand, W. T.
name: Wheeler, J. C.
name: Wren, J.
name: Yuan, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ROTSE-IIIc telescope at the H.E.S.S. site, Namibia, obtained the earliest detection of optical emission from a Gamma-Ray Burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical lightcurve does not fade or brighten significantly over the first ~250 s, after which there is an achromatic break and the lightcurve declines in typical power-law fashion. The Swift/XRT also obtained early observations starting at 69 s after the burst onset. The X-ray lightcurve shows the same features as the optical lightcurve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.
description: 5 pages, 1 figure. Accepted for publication in ApJ Letters
Approximation in the Zygmund and Hölder classes on $\mathbb{R}^n$
Creators: name: Saksman, Eero
name: Gibert, Odí Soler i
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26B35

description: We determine the distance (up to a multiplicative constant) in the Zygmund class $Λ_{\ast}(\mathbb{R}^n)$ to the subspace $\mathrm{J}(\mathbf{bmo})(\mathbb{R}^n).$ The latter space is the image under the Bessel potential $J := (1-Δ)^{-1/2}$ of the space $\mathbf{bmo}(\mathbb{R}^n),$ which is a non-homogeneous version of the classical $\mathrm{BMO}.$ Locally, $\mathrm{J}(\mathbf{bmo})(\mathbb{R}^n)$ consists of functions that together with their first derivatives are in $\mathbf{bmo}(\mathbb{R}^n).$ More generally, we consider the same question when the Zygmund class is replaced by the Hölder space $Λ_{s}(\mathbb{R}^n),$ with $0 < s \leq 1$ and the corresponding subspace is $\mathrm{J}_{s}(\mathbf{bmo})(\mathbb{R}^n),$ the image under $(1-Δ)^{-s/2}$ of $\mathbf{bmo}(\mathbb{R}^n).$ One should note here that $Λ_{1}(\mathbb{R}^n) = Λ_{\ast}(\mathbb{R}^n).$ Such results were known earlier only for $n = s = 1$ with a proof that does not extend to the general case. Our results are expressed in terms of second differences. As a byproduct of our wavelet based proof, we also obtain the distance from $f \in Λ_{s}(\mathbb{R}^n)$ to $\mathrm{J}_{s}(\mathbf{bmo})(\mathbb{R}^n)$ in terms of the wavelet coefficients of $f.$ We additionally establish a third way to express this distance in terms of the size of the hyperbolic gradient of the harmonic extension of $f$ on the upper half-space $\mathbb{R}^{n+1}_{+}.$
description: 29 pages. Several modifications following the recommendations of the referees: correction of multiple typos, moving the explanation on the proof of Theorem 2 and the proof of Theorem 3 into a new section, and other minor changes to improve clarity. Accepted manuscript at Can. J. Math
Fermion Representation Of The Rolling Tachyon Boundary Conformal Field Theory
Creators: name: Lee, Taejin
name: Semenoff, Gordon W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A free fermion representation of the rolling tachyon boundary conformal field theory is constructed. The representation is used to obtain an explicit, compact, exact expression for the boundary state. We use the boundary state to compute the disc and cylinder amplitudes for the half-S-brane.
description: 27 pages
THE IMPORTANCE OF THE CONSERVATION SECURITY ACT TO US COMPETITIVENESS IN GLOBAL ORGANIC MARKETS
Creators: name: Lohr, Luanne
name: Lohr, Luanne
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
International Relations/Trade

description: This briefing paper reviews the role that the proposed Conservation Security Act plays in improving US competitiveness in global markets for organic agriculture products. The European Union provides direct payments to organic farmers through an agri-environmental program that is considered a "Green Box policy" by the World Trade Organization and not subject to funding limits. US organic farmers are falling behind due to aggressive production conversion campaigns in the EU. The Conservation Security Act, which would pay farmers for environmentally sound practices, would counterbalance the EU subsidy program. With a level field for production support, the US organic industry could be expected to become a dominant market force in the $102 billion global organic sector.
CROSS-HEDGING COTTONSEED MEAL
Creators: name: Rahman, Shaikh Mahfuzur
name: Turner, Steven C.
name: Costa, Ecio De Farias
name: Rahman, Shaikh Mahfuzur
name: Turner, Steven C.
name: Costa, Ecio De Farias
Publisher: name: Unknown
Year: 2000
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This study examines the feasibility of cross-hedging cottonseed meal with soybean meal futures. The Bayesian tests for market efficiency on the cash and futures price data soundly rejects the presence of nonstationary root. The simple linear regression of cottonseed meal cash prices on soybean meal futures provides a direct price movement relationship. Using the estimated hedge-ratios, the net realized prices are calculated for seven different cash markets. The net realized prices exhibit risk efficiency superior to cash pricing. The empirical analyses suggest that soybean meal futures can be used as a potential cross-hedging vehicle for cottonseed meal.
MANAGING PRICE RISK IN COTTON PRODUCTION USING STRATEGIC ROLLOVER HEDGING
Creators: name: Turner, Steven C.
name: Heboyan, Vahe
name: Turner, Steven C.
name: Heboyan, Vahe
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Risk and Uncertainty

description: Research on rollover hedging for agricultural commodities has focused on the consequences of using existing contracts to substitute for missing long-term contracts. It appears that some grains are candidates for rollover hedging while livestock is not. Cotton was analyzed to evaluate the effectiveness of rollover hedging from 1982 to 1999. This paper demonstrates that strategic rollover hedging can be used as a substitute for missing long-term futures market and increase expected returns in cotton production. The estimated results reported average returns of 62.22, 65.36, 75.80, 79.09, and 69.14 cents per pound for cash sale, single-year hedge, 5, 2.5, and 1% three-year strategic rollover hedging strategies, respectively. Thus, it appears returns for three-year strategic rollover hedging were about 20% higher than under the other two strategies.
Variational quantum eigensolvers for sparse Hamiltonians
Creators: name: Kirby, William M.
name: Love, Peter J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hybrid quantum-classical variational algorithms such as the variational quantum eigensolver (VQE) and the quantum approximate optimization algorithm (QAOA) are promising applications for noisy, intermediate-scale quantum (NISQ) computers. Both VQE and QAOA variationally extremize the expectation value of a Hamiltonian. All work to date on VQE and QAOA has been limited to Pauli representations of Hamiltonians. However, many cases exist in which a sparse representation of the Hamiltonian is known but there is no efficient Pauli representation. We extend VQE to general sparse Hamiltonians. We provide a decomposition of a fermionic second-quantized Hamiltonian into a number of one-sparse, self-inverse, Hermitian terms linear in the number of ladder operator monomials in the second-quantized representation. We provide a decomposition of a general $d$-sparse Hamiltonian into $O(d^2)$ such terms. In both cases a single sample of any term can be obtained using two ansatz state preparations and at most six oracle queries. The number of samples required to estimate the expectation value to precision $ε$ scales as $ε^{-2}$ as for Pauli-based VQE. This widens the domain of applicability of VQE to systems whose Hamiltonian and other observables are most efficiently described in terms of sparse matrices.
description: published version; 12 pages, 5 figures
Conus coltrorum Simone 2012
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Conidae
Conus
Conus coltrorum

description: coltrorum, Spixia Simone, 2012
 Spixia coltrorum Simone, 2012b: 433–435 (figs 9–14).
Gastropoda, Orthalicidae
 Holotype: MZSP 103920.
 Paratype: MZSP 103921.
 Paratypes (2 spc): MZSP 103922.
 Paratypes (8 spc): MZSP 103923.
 Locality: Brazil, Bahia, Santa Maria da Vitória, ~ 13°24' S, 44°12' W, ~ 460 m altitude (type locality), Jan. 2012.
 Collector: J. Coltro.
 Preservation: Dry.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 16, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Morphological control of multifunctional melting gel coatings via electrospray deposition
Creators: name: Gamboa, Arielle Marie
Publisher: name: No Publisher Supplied
Year: 2020

description: Melting gels are a class of hybrid organic-inorganic gels prepared via the sol-gel process that have glass transition temperatures near room temperature and consolidation temperatures ~150°C. Their thermal properties allow for useful processing techniques: melting gels exhibit thermoplastic behavior below their consolidation temperatures, then undergo complete cross-linking to form organically modified silica networks upon consolidation. By appropriately tuning surface properties, these glass sprays can be used as protective coatings in electronics and anti-corrosion in metals. Electrospray deposition was used to spray dilute solutions of 1 wt% melting gels in 2-butanone onto silicon substrates. Electrospray uses high voltages to produce charged, monodisperse droplets, and because of the low solid contents used in our study, it uniformly delivers small amounts of melting gel at a continuous rate. Parameters such as the pH of melting gel synthesis, solution viscosity, and spray polarity can be varied to alter and study the effects of charge injection on the consolidation of the melting gel into hybrid glasses. Optical images, film thickness measurements, nanoindentation, FT-IR, and goniometry were used to evaluate and demonstrate the effects of these variables on both the physical morphology along with the chemical structure of the final coatings.
Derivations and 2-Cocycles of Contact Lie Algebras Related to Locally-Finite Derivations
Creators: name: Song, Guang'an
name: Su, Yucai
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B65

description: Classical contact Lie algebras are the fundamental algebraic structures on the manifolds of contact elements of configuration spaces in classical mechanics. Xu introduced a large category of contact simple Lie algebras which are related to locally finite derivations and are in general not finitely graded. The isomorphism classes of these Lie algebras were determined in a previous paper by Xu and Su. In this paper, the derivation algebras and the 2-cohomology groups of these Lie algebras are determined, and it is obtained that the 2-cohomology groups of these Lie algebras are all trivial.
description: LaTeX, 15 pages
AN ANALYSIS OF DOMESTIC AND EXPORT DEMAND FOR U.S. COTTON
Creators: name: Marseli, Oussama
name: Epperson, James E.
name: Marseli, Oussama
name: Epperson, James E.
Publisher: name: Unknown
Year: 2002
Subjects: Crop Production/Industries
Demand and Price Analysis
Industrial Organization

description: Expansion of the cotton industry depends on economic growth. Models were specified to estimate U.S. domestic and export demand with and without structural change. The results indicate that domestic demand increases with per capita GDP and decreases with rising oil prices. U.S. export demand for cotton expands with lower beginning stocks in the rest of the world and rising per capita income.