cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic Field Energy Harvesting in Railway
Creators: name: Espe, Asbjørn Engmark
name: Haugan, Thomas S.
name: Mathisen, Geir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Magnetic field energy harvesting (MFEH) is a method by which a system can harness an ambient, alternating magnetic field in order to scavenge energy. Presented in this article is a novel application of the concept aimed at the magnetic fields surrounding the rail current in electrified railway. Due to its non-invasive nature, the approach has the potential to be widely deployed as part of low-cost trackside condition monitoring systems in order to increase lifetime and reduce maintenance requirements. In this work, the viability of MFEH in railway is substantiated experimentally -- two different configurations are assessed both in a controlled laboratory environment, as well as in situ along Norwegian railway. When placed near an emulated section of railway carrying 200 A in the laboratory, the power output of the system is up to 40.5 mW at 50 Hz and 4.15 mW at 16 2/3 Hz. In the field, the prototype system harvests 109 mJ from a single freight train passing by, rendering an estimated daily energy output of 1.14 J in a moderately-trafficked location. It is argued that the approach could indeed eliminate the need for battery replacements, and potentially increase the lifetime of an energy-efficient, battery-powered condition monitoring system indefinitely.
description: Accepted for publication to IEEE Transactions on Power Electronics
Evidence for current-induced phase coexistence in Ca$_{2}$RuO$_{4}$ and its influence on magnetic order
Creators: name: Jenni, K.
name: Wirth, F.
name: Dietrich, K.
name: Berger, L.
name: Sidis, Y.
name: Kunkemöller, S.
name: Grams, C. P.
name: Khomskii, D. I.
name: Hemberger, J.
name: Braden, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Combining quasistatic and time-resolved transport measurements with X-ray and neutron diffraction experiments we study the non-equilibrium states that arise in pure and in Ti substituted Ca$_2$RuO$_4$ under the application of current densities. Time-resolved studies of the current-induced switching find a slow conductance relaxation that can be identified with heating and a fast one that unambiguously proves an intrinsic mechanism. The current-induced phase transition leads to complex diffraction patterns. Separated Bragg reflections that can be associated with the metallic and insulating phases by their lattice parameters, indicate a real structure with phase coexistence that strongly varies with temperature and current strength. A third contribution with a $c$ lattice constant in between those of metallic and insulating phases appears upon cooling. At low current densities, this additional phase appears below $\sim$100 K and is accompanied by a suppression of the antiferromagnetic order that otherwise can coexist with current carrying states. A possible origin of the intermediate phase is discussed.
Public Data Repository Waterman AJP Endo - Published 2024
Creators: name: Waterman, Hannah
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310910
subject: Animal physiology - systems

description: Table and figure data for "Duration of Morning Hyperinsulinemia Determines Hepatic Glucose Uptake and Glycogen Storage Later in the Day", published in AJP Endo 2024.
COALITION DEVELOPMENT IN THE AGRICULTURAL MARKETING SYSTEM
Creators: name: Puaha, Hubertus
name: Tilley, Daniel S.
name: Puaha, Hubertus
name: Tilley, Daniel S.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The theory of agricultural coalition formation is enhanced by incorporating non-monetary benefits, risk, and fairness. Producer's expected utility and investment decisions in the agricultural cooperative are affected by their perception about non-monetary benefits, risk and fairness associate with the cooperative investment. (Revised edition added in August 2002)
Stochastic Non-Bipartite Matching Models and Order-Independent Loss Queues
Creators: name: Comte, Céline
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Performance (cs.PF)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: G.3
subject: 60K25 (Primary), 60J28 (Secondary)

description: The problem of appropriately matching items subject to compatibility constraints arises in a number of important applications. While most of the literature on matching theory focuses on a static setting with a fixed number of items, several recent works incorporated time by considering a stochastic model in which items of different classes arrive according to independent Poisson processes and assignment constraints are described by an undirected non-bipartite graph on the classes. In this paper, we prove that the Markov process associated with this model has the same transition diagram as in a product-form queueing model called an order-independent loss queue. This allows us to adapt existing results on order-independent (loss) queues to stochastic matching models and, in particular, to derive closed-form expressions for several performance metrics, like the waiting probability or the mean matching time, that can be implemented using dynamic programming. Both these formulas and the numerical results that they allow us to derive are used to gain insight into the impact of parameters on performance. In particular, we characterize performance in a so-called heavy-traffic regime in which the number of items of a subset of the classes goes to infinity while items of other classes become scarce.
description: 25 pages, 6 figures
HOUSEHOLD SIZE AND COMPOSITION IMPACTS ON MEAT DEMAND IN MEXICO: A CENSORED DEMAND SYSTEM APPROACH
Creators: name: Gould, Brian W.
name: Lee, Yoonjung
name: Dong, Diansheng
name: Villarreal, Hector J.
name: Gould, Brian W.
name: Lee, Yoonjung
name: Dong, Diansheng
name: Villarreal, Hector J.
Publisher: name: Unknown
Year: 2002
Subjects: Demand and Price Analysis

description: The proposed paper adopts the censored demand system approach of Lee and Pitt (1986) to examine the structure of Mexican food demand. This approach uses the concept of virtual prices to explain specific purchase patterns. The contribution of our selected paper is the incorporation of the endogenous equivalence scale function proposed by Phlipps (1998) within this censored system. The contribution of this analysis is not only in terms of the use of an endogenous scaling function within a censored demand system, but we also will be use simulated maximum likelihood techniques which allows for the specification and estimation of significantly larger sized demand systems without the imposition of restrictive distributional assumptions on the equation error terms. We use a Gibbs sampling techniques to evaluate higher order truncated distributions required to implement the Lee and Pitt (1986) model specification.
Geometry of Paraquaternionic Kahler manifolds with torsion
Creators: name: Zamkovoy, Simeon
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 5350, 53C25, 53C26, 53B30

description: We study the geometry of PQKT-connections. We find conditions to the existence of a PQKT-connection and prove that if it exists it is unique. We show that PQKT geometry persist in a conformal class of metrics.
description: 22 pages
Representations of quantum groups defined over commutative rings II
Creators: name: Cox, Ben L.
name: Enright, Thomas J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B67, 81R10

description: In this article we study the structure of highest weight modules for quantum groups defined over a commutative ring with particular emphasis on the structure theory for invariant bilinear forms on these modules.
Cooper pairing and superconductivity on a spherical surface
Creators: name: Tempere, J.
name: Gladilin, V. N.
name: Silvera, I. F.
name: Devreese, J. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Electrons in a multielectron bubble in helium form a spherical, two-dimensional system coupled to the ripplons at the bubble surface. The electron-ripplon coupling, known to lead to polaronic effects, is shown to give rise also to Cooper pairing. A Bardeen-Cooper-Schrieffer (BCS) Hamiltonian arises from the analysis of the electron-ripplon interaction in the bubble, and values of the coupling strength are obtained for different bubble configurations. The BCS Hamiltonian on the sphere is analysed using the Richardson method. We find that although the typical ripplon energies are smaller than the splitting between electronic levels, a redistribution of the electron density over the electronic levels is energetically favourable as pairing correlations can be enhanced. The density of states of the system with pairing correlations is derived. No gap is present, but the density of states reveals a strong step-like increase at the pair-breaking energy. This feature of the density of states should enable the unambiguous detection of the proposed state with pairing correlations in the bubble, through either capacitance spectroscopy or tunneling experiments, and allow to map out the phase diagram of the electronic system in the bubble.
description: 25 pages, 7 figures, 1 table
2004 United States Animal Health Report
Creators: name: Animal And Plant Health Inspection Service
name: Animal And Plant Health Inspection Service
Publisher: name: Unknown
Year: 2005
Subjects: International Relations/Trade
Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Excerpt from the report Foreword: This report—a national overview of domestic animal health in the United States for 2004—is a direct result of an external review of the Nation’s animal health safeguarding system. The Animal Health Safeguarding Review assessed the performance, processes, and procedures used to ensure the success of the mission of the U.S. Department of Agriculture (USDA)–Animal and Plant Health Inspection Service’s (APHIS) Veterinary Services (VS) program: to protect and to improve the health, quality, and marketability of our Nation’s animals, animal products, and veterinary biologics.
Cluster formation in complex multi-scale systems
Creators: name: Gibbon, J. D.
name: Titi, E. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Based on the competition between members of a hierarchy of length scales in complex multi-scale systems, it is shown how clustering of active quantities into concentrated sets, like bubbles in a Swiss cheese, is a generic property that dominates the intermittent structure. The halo-like surfaces of these clusters have scaling exponents lower than that of their kernels, which can be as high as the domain dimension. Examples include spots in fluid turbulence and droplets in spin-glasses.
description: 4 pages with one figure
An Empirical Analysis of Double-Blind Review in SE
Creators: name: Anonymous
Publisher: name: Zenodo
Year: 2021

description: The dataset comprises: data.csv: The csv file for all venues data analyzed, as provided by DBLP dblp-crawler.zip is a script to automatically retrieve the meta-data of all needed publications in a specified range of years. csv-analysis.zip is a script to perform the needed analysis
Revisiting the analysis of axion-like particles with the Fermi-LAT gamma-ray observation of NGC1275
Creators: name: Cheng, Ji-Gui
name: He, Ya-Jun
name: Liang, Yun-Feng
name: Lu, Rui-Jing
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this work, we re-analyze the Fermi-LAT observation of NGC 1275 to search for axion-like particle (ALP) effects and constrain ALP parameters. Instead of fitting the observed spectrum with ALP models, we adopt an alternative method for the analysis of this source which calculates the irregularity of the spectrum. With the newly used method, we find no spectral oscillation for the NGC 1275 and rule out couplings $g_{aγ}>3\times10^{-12}\,{\rm GeV^{-1}}$ around ALP mass of $m_a\sim$ 1 neV at 95\% confidence level, which is more stringent than the previous results. We also show that the constraints can be further improved by combining the observation of PKS 2155-304. We suggest that with more sources taken into account, we could obtain a much wider exclusion region.
description: Conclusion not included in the accepted version have been added in the last paragraph of Section 5
ECONOMIC GROWTH WITH LIMITED AGGLOMERATION ECONOMIES
Creators: name: Murova, Olga I.
name: Rainey, Daniel V.
name: Murova, Olga I.
name: Rainey, Daniel V.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: employment agglomeration
subject: input potentials
subject: input utilization
subject: personal income

description: This study examined how various inputs including employment agglomeration in different industries affected economic growth of Arkansas during 1986-1999. Analysis showed locations that are able to successfully substitute infrastructure, human capital, and amenities, are more likely to see increased incomes.
Exotic Critical Behavior of Weak Multiplex Percolation
Creators: name: Baxter, G. J.
name: da Costa, R. A.
name: Dorogovtsev, S. N.
name: Mendes, J. F. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We describe the critical behavior of weak multiplex percolation, a generalization of percolation to multiplex or interdependent networks. A node can determine its active or inactive status simply by referencing neighboring nodes. This is not the case for the more commonly studied generalization of percolation to multiplex networks, the mutually connected clusters, which requires an interconnecting path within each layer between any two vertices in the giant mutually connected component. We study the emergence of a giant connected component of active nodes under the weak percolation rule, finding several non-typical phenomena. In two layers, the giant component emerges with a continuos phase transition, but with quadratic growth above the critical threshold. In three or more layers, a discontinuous hybrid transition occurs, similar to that found in the giant mutually connected component. In networks with asymptotically powerlaw degree distributions, defined by the decay exponent $γ$, the discontinuity vanishes but at $γ=1.5$ in three layers, more generally at $γ= 1+ 1/(M-1)$ in $M$ layers.
description: 11 pages, 6 figures
TINKERING WITH VALUATION ESTIMATES: IS THERE A FUTURE FOR WILLINGNESS TO ACCEPT MEASURES?
Creators: name: Halstead, John M.
name: Huang, Ju-Chin
name: Stevens, Thomas H.
name: Harper, Wendy
name: Halstead, John M.
name: Huang, Ju-Chin
name: Stevens, Thomas H.
name: Harper, Wendy
Publisher: name: Unknown
Year: 2002
Subjects: Resource /Energy Economics and Policy

description: This paper examines various methods proposed in the literature to calibrate welfare measures, especially willingness to accept and willingness to pay, derived from contingent valuation surveys. Through simulation and a case study, we hope to provide guidance for empirical welfare measurement in response to the theoretical dispute regarding WTA/WTP disparities.
FARM AND NONFARM FACTORS INFLUENCING FARM SIZE
Creators: name: Atwood, Joseph A.
name: Helmers, Glenn A.
name: Shaik, Saleem
name: Atwood, Joseph A.
name: Helmers, Glenn A.
name: Shaik, Saleem
Publisher: name: Unknown
Year: 2002
Subjects: subject: Industrial Organization
subject: Farm Size
subject: Capital-Labor Substitution
subject: Nonfarm Impacts

description: The impact of the price of capital, nonfarm employment opportunities, and returns in agriculture on farm size was analyzed. A 10 region panel model using data for 1950-2000 was used. The impact of agricultural government payments was also examined. The results demonstrated the capital-labor substitution phenomenon and the importance of nonfarm employment changes.
Scaling pair count to next galaxy surveys
Creators: name: Plaszczynski, S.
name: Campagne, J. E.
name: Peloton, J.
name: Arnault, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Counting pairs of galaxies or stars according to their distance is at the core of real-space correlation analyzes performed in astrophysics and cosmology. Upcoming galaxy surveys (LSST, Euclid) will measure properties of billions of galaxies challenging our ability to perform such counting in a minute-scale time relevant for the usage of simulations. The problem is only limited by efficient access to the data, hence belongs to the big data category. We use the popular Apache Spark framework to address it and design an efficient high-throughput algorithm to deal with hundreds of millions to billions of input data. To optimize it, we revisit the question of nonhierarchical sphere pixelization based on cube symmetries and develop a new one dubbed the "Similar Radius Sphere Pixelization" (SARSPix) with very close to square pixels. It provides the most adapted indexing over the sphere for all distance-related computations. Using LSST-like fast simulations, we compute autocorrelation functions on tomographic bins containing between a hundred million to one billion data points. In each case we achieve the construction of a standard pair-distance histogram in about 2 minutes, using a simple algorithm that is shown to scale, over a moderate number of nodes (16 to 64). This illustrates the potential of this new techniques in the field of astronomy where data access is becoming the main bottleneck. They can be easily adapted to other use-cases as nearest-neighbors search, catalog cross-match or cluster finding. The software is publicly available from https://github.com/astrolabsoftware/SparkCorr.
description: published version
A MIXED INTEGER, NONLINEAR PROGRAMMING MODEL OF INNOVATIVE VARIABLE RATE PLANTING DATE WITH POLYMER SEED COATINGS
Creators: name: Dillon, Carl R.
name: Shearer, Scott A.
name: Mueller, Thomas
name: Dillon, Carl R.
name: Shearer, Scott A.
name: Mueller, Thomas
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries

description: The economic potential of innovative variable rate planting date for profitability and risk reduction is examined in a whole farm management setting. A mixed integer, quadratic programming model using a mean-variance (E-V) framework is used to represent the precision agriculture issues of varying planting date with novel polymer seed coatings.
Seasonal variation in constitutive and induced defenses of spruce (Picea spp.) hosts of the white pine weevil Pissodes strobi peck
Creators: name: Brescia, David A.
Publisher: name: University of British Columbia
Year: 2009

description: The white pine weevil, Pissodes strobi, is a major pest of regenerating spruce in British Columbia, and the damage caused by weevil attack results in a severe reduction in plantation productivity and wood quality. As a result, the planting of Sitka spruce, except in a small portion of its range, is no longer recommended in B.C. Control attempts have met with little success; however, it is believed that host resistance will be an essential part of an effective Integrated Pest Management plan for the weevil. My objective was to examine the induced resin response and the constitutive resin canal system of Sitka spruce to identify potential resistance mechanisms and to determine how those mechanisms were affected by seasonal growth and development of the tree. Histological examination of cross-sections of laterals taken at different times during the season were used to compare the extent of components of the constitutive resin canal system between resistant and susceptible families of Sitka spruce. Similar methods were used to compare the capacity of resistant and susceptible trees to produce a traumatic resin response. Weekly measurements of leader apical bud phenology and radial growth were used to determine if differences in leader growth and development existed between resistant and susceptible trees which could affect resin canal density in the leader. Artificial wounding of tree leaders at different times of the season and at different densities of wounding was used to determine if there was a seasonal effect on the production of traumatic resin and if the response level was related to the wounding level. Compared to susceptible trees, resistant trees tended to have larger inner resin canals and thinner bark, and thus, a greater percentage of bark occupied by inner resin canals. Furthermore, both resistant and susceptible trees showed an increase in resin canal size and a decrease in resin canal density through the season. The level of the traumatic response produced by artificially wounded trees was significantly higher in resistant trees than in susceptible trees and was also found to be highest in early flushing trees. No difference in rate of leader radial growth was observed between resistant and susceptible trees, but buds on resistant trees flushed earlier than those on susceptible trees. The traumatic response was found to be lowest in trees wounded early in the season, and was also found to increase in a density dependent manner with the wounding level. Although several traits were present to a greater degree in resistant trees than susceptible trees, no single trait was emphasized in every resistant individual, suggesting that effective resistance is based on a combination of traits. Furthermore, the variability of these traits through the season reinforces the importance of host-insect phenology in the success or failure of an attack.
MAXIMUM LIKELIHOOD ESTIMATION OF A RANDOM COEFFICIENT MEAT DEMAND SYSTEM
Creators: name: Hahn, William F.
name: Hahn, William F.
Publisher: name: Unknown
Year: 2001
Subjects: Demand and Price Analysis

description: The paper demonstrates that random coefficient models can be estimated by maximum likelihood if they are specified as generalized least squares models. The paper uses maximum likelihood estimation on a random-coefficient, meat-demand system. Statistical tests show that price elasticities are random, but expenditure elasticities are not. The statistical tests allow one to count the number of factors that cause randomness without requiring one to know what they are. There appear to be only two factors that make the price elasticities random.
Determination of Calibration Parameters of Cantilevers of Arbitrary Shape by Finite Elements Analysis
Creators: name: Rodriguez-Ramos, Jorge
name: Rico, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The use of atomic force microscopy on nanomechanical measurements requires accurate calibration of the cantilever's spring constant ($k_c$) and the optical lever sensitivity ($OLS$). The thermal method, based on the cantilever's thermal fluctuations in fluid, allows estimating $k_c$ in a fast, non-invasive mode. However, differences in the cantilever geometry and mounting angle require the knowledge of three correction factors to get a good estimation of $k_c$: the contribution of the oscillation mode to the total amplitude, the shape difference between the free and the end-loaded configurations, and the tilt of the cantilever respect to the measured surface. While the correction factors for traditional rectangular and V-shaped cantilevers geometries have been reported, they must be determined for cantilevers with non-traditional geometries and large tips. Here, we develop a method based on finite element analysis to estimate the correction factors of cantilevers with arbitrary geometry and tip dimensions. The method relies on the numerical computation of the effective cantilever mass. The use of the correction factor for rectangular geometries on our model cantilever (PFQNM-LC) will lead to values underestimated by 16%. In contrast, experiments using pre-calibrated cantilevers revealed a maximum uncertainty below 5% in the estimation of the $OLS$, verifying our approach.
description: 8 pages, 4 figures, 2 tables; corrected missing ^2 in Eq 16
OPTIMAL PESTICIDE USAGE WITH RESISTANCE AND ENDOGENOUS TECHNOLOGICAL CHANGE
Creators: name: Secchi, Silvia
name: Babcock, Bruce A.
name: Secchi, Silvia
name: Babcock, Bruce A.
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries

description: This paper develops a model analyzing the first best policy for a social planner when pesticide use causes resistance, the level of pest infestation is heterogeneous among farmers, and the development of a backstop technology is an endogenous and uncertain process which depends on the cumulative amount of R&D effort.
Affine actions of a free semigroup on the real line
Creators: name: Bergelson, Vitaly
name: Misiurewicz, Michal
name: Senti, Samuel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A30, 37H99

description: We consider actions of the free semigroup with two generators on the real line, where the generators act as affine maps, one contracting and one expanding, with distinct fixed points. Then every orbit is dense in a half-line, which leads to the question whether it is, in some sense, uniformly distributed. We present answers to this question for various interpretations of the phrase ``uniformly distributed''.
Plasmonic antenna coupling to hyperbolic phonon-polaritons for sensitive and fast mid-infrared photodetection with graphene
Creators: name: Castilla, Sebastián
name: Vangelidis, Ioannis
name: Pusapati, Varun-Varma
name: Goldstein, Jordan
name: Autore, Marta
name: Slipchenko, Tetiana
name: Rajendran, Khannan
name: Kim, Seyoon
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Martín-Moreno, Luis
name: Englund, Dirk
name: Tielrooij, Klaas-Jan
name: Hillenbrand, Rainer
name: Lidorikis, Elefterios
name: Koppens, Frank H. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Integrating and manipulating the nano-optoelectronic properties of Van der Waals heterostructures can enable unprecedented platforms for photodetection and sensing. The main challenge of infrared photodetectors is to funnel the light into a small nanoscale active area and efficiently convert it into an electrical signal. Here, we overcome all of those challenges in one device, by efficient coupling of a plasmonic antenna to hyperbolic phonon-polaritons in hexagonal-BN to highly concentrate mid-infrared light into a graphene pn-junction. We balance the interplay of the absorption, electrical and thermal conductivity of graphene via the device geometry. This novel approach yields remarkable device performance featuring room temperature high sensitivity (NEP of 82 pW-per-square-root-Hz) and fast rise time of 17 nanoseconds (setup-limited), among others, hence achieving a combination currently not present in the state-of-the-art graphene and commercial mid-infrared detectors. We also develop a multiphysics model that shows excellent quantitative agreement with our experimental results and reveals the different contributions to our photoresponse, thus paving the way for further improvement of these types of photodetectors even beyond mid-infrared range.
Advantages and Distinguishing Features of Focus Point Supersymmetry
Creators: name: Feng, Jonathan L.
name: Wilczek, Frank
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Diverse experimental constraints now motivate models of supersymmetry breaking in which some superpartners have masses well above the weak scale. Three alternatives are focus point supersymmetry and inverted hierarchy models, which embody a naturalness constraint, and the more recent framework of split supersymmetry, which relaxes that constraint. Many aspects of their phenomenology are very similar. They can be distinguished, however, through detailed study of superoblique parameters, the Higgs potential and other observables.
description: 9 pages, published version
On the quantification of the effect of model error on groundwater model predictions and risk assessments
Creators: name: Gaganis, Petros
Publisher: name: University of British Columbia
Year: 2009

description: Errors arising from an imperfect model structure (model error) may significantly degrade the usefulness of model calibration in predictive modeling and result in misleading uncertainty and risk analyses. Model error is not random but systematic. Its effect on model predictions varies in space and time and differs for the flow and solute transport components of a groundwater model. Model error does not necessarily have any probabilistic properties that can be easily exploited in the construction of a single-objective model performance criterion. The effect of model error on the solution of the inverse problem is evaluated in the parameter space using a per-datum approach to model calibration where a model is calibrated at each data point separately. For each dependent variable, the location of each per-datum parameter estimate in the parameter space is a function of the magnitude of model error at the given sampling location and time. These parameter estimates are translated into a probabilistic description of model output that represents the level of confidence in model performance evaluated in terms of each model prediction. This approach provides useful information regarding the strengths and limitations of a model as well as the performance of classical calibration procedures. The quantification of model error in the presence of parameter uncertainty is also evaluated within the Bayesian framework. Insight gained in updating the prior information on the parameter values is used to assess the correctness of the model structure, which is defined relative to the required accuracy by model predictions. Model error is evaluated in terms of each measurement of the dependent variable through an examination of the correctness of the model structure for different accuracy levels. The spatial and temporal variability of estimated model error can be used in identifying its possible causes, as well as in discriminating among models in terms of model structure correctness. Application of perdatum calibration and the Bayesian model error quantification to a groundwater contamination problem at the Chernobyl site in the Ukraine indicates that evaluating the effect of model error on estimated risks in hydrogeologic decision analysis offers an attractive alternative to adopting a bias towards conservative values.
ARE BASIC SCIENCE AND BIOTECHNOLOGY COMPLEMENTARY ACTIVITIES?
Creators: name: Xia, Yin
name: Buccola, Steven T.
name: Xia, Yin
name: Buccola, Steven T.
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Enhancing agricultural productivity depends greatly on the management of information flows between basic and applied research. A framework is developed to examine the mutual relationship between molecular biological research and agricultural biotechnology innovations. Preliminary results provide a basis for university decision-making in both the short and long run.
Price and Exchange Rate Transmission in Russian Food Markets
Creators: name: Osborne, Stefan
name: Liefert, William M.
name: Osborne, Stefan
name: Liefert, William M.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The paper estimates price and exchange rate elasticities in Russia during 1994-2000 for the country's major agricultural traded goods. The calculations not only can be used for trade forecasting, but also serve as indicators of the degree to which Russia is integrated into world agricultural markets. The results show that the transmission of changes in world trade prices and the exchange rate to changes in Russian domestic food prices is generally low, though highest for Moscow and St. Petersburg.
Silicon carbide stacking-order-induced doping variation in epitaxial graphene
Creators: name: Pakdehi, Davood Momeni
name: Schädlich, Philip
name: Nguyen, T. T. Nhung
name: Zakharov, Alexei A.
name: Wundrack, Stefan
name: Speck, Florian
name: Pierz, Klaus
name: Seyller, Thomas
name: Tegenkamp, Christoph
name: Schumacher, Hans. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Generally, it is supposed that the Fermi level in epitaxial graphene is controlled by two effects: p-type polarization doping induced by the bulk of the hexagonal SiC(0001) substrate and overcompensation by donor-like states related to the buffer layer. In this work, we evidence that this effect is also related to the specific underlying SiC terrace. We fabricated a periodic sequence of non-identical SiC terraces, which are unambiguously attributed to specific SiC surface terminations. A clear correlation between the SiC termination and the electronic graphene properties is experimentally observed and confirmed by various complementary surface-sensitive methods. We attribute this correlation to a proximity effect of the SiC termination-dependent polarization doping on the overlying graphene layer. Our findings open a new approach for a nano-scale doping-engineering by self-patterning of epitaxial graphene and other 2D layers on dielectric polar substrates.
Feral/Wild Pigs: Potential Problems for Farmers and Hunters
Creators: name: Animal And Plant Health Inspection Service
name: Animal And Plant Health Inspection Service
Publisher: name: Unknown
Year: 2005
Subjects: Livestock Production/Industries

description: Free-ranging populations of wild pigs (also called feral swine) exist in at least 39 States in this country. Some experts estimate their numbers at over 4 million, with the largest populations located in California, Florida, Hawaii, and Texas. Hunters, farmers, and landowners need to be aware of the extensive damage wild pigs can cause to their property and livestock. The rooting and wallowing activities of wild pigs cause serious erosion to river banks and areas along streams. These destructive animals have been known to tear through livestock and game fences and consume animal feed, minerals, and protein supplements. Not only do wild pigs feast on field crops such as corn, milo, rice, watermelon, peanuts, hay, turf and wheat, but they are also efficient predators and—when given the opportunity—will prey upon young livestock and other small animals.
Fractional charge in the noise of Luttinger liquid systems
Creators: name: Trauzettel, B.
name: Safi, I.
name: Dolcini, F.
name: Grabert, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The current noise of a voltage biased interacting quantum wire adiabatically connected to metallic leads is computed in presence of an impurity in the wire. We find that in the weak backscattering limit the Fano factor characterizing the ratio between shot noise and backscattering current crucially depends on the noise frequency relative to the ballistic frequency v_F/gL, where v_F is the Fermi velocity, g the Luttinger liquid interaction parameter, and L the length of the wire. In contrast to chiral Luttinger liquids, the noise is not only due to the Poissonian backscattering of fractionally charged quasiparticles at the impurity, but also depends on Andreev-type reflections of plasmons at the contacts, so that the frequency dependence of the noise needs to be analyzed to extract the fractional charge e*=e g of the bulk excitations. We show that the frequencies needed to see interaction effects in the Fano factor are within experimental reach.
description: 9 pages, 4 figures, conference proceedings of Fluctuations and Noise 2005, Austin, Texas
AGRICULTURE AND CLIMATE CHANGE IN THE EU: GREENHOUSE GAS EMISSIONS AND ABATEMENT COSTS
Creators: name: De Cara, Stephane
name: Jayet, Pierre-Alain
name: De Cara, Stephane
name: Jayet, Pierre-Alain
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy

description: This paper addresses the assessment of greenhouse gas emissions from agriculture in the European Union. We first estimate and compare net emissions from agricultural activities in twelve EU countries. These estimates are based on a set of farm-unit linear-programming models. We then use these models to derive marginal and total abatement costs associated with different levels of reduction targets (dual approach) and different values of carbon-equivalent emissions (primal approach). Finally, we explore the possibility of allowing afforestation on set-aside land. This paper highlights the discrepancies between countries regarding abatement costs and their sensitiveness to the accounting for carbon sequestration.
THE IMPACT OF FOOD SCARES ON BEEF AND INTER-RELATED MARKETS
Creators: name: Lloyd, Tim A.
name: McCorriston, Steve
name: Morgan, C. Wyn
name: Rayner, Anthony J.
name: Lloyd, Tim A.
name: McCorriston, Steve
name: Morgan, C. Wyn
name: Rayner, Anthony J.
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: In this paper we investigate the impacts of food scares in the UK on the prices and spreads of beef, pork and lamb using a decade of monthly price data (1990-99). Results underline the importance of food scares on prices and price spreads and the strong inter-relationships between meats, typically ignored in such studies.
Soft Gluon Logarithmic Resummation and Hadron Mass Effects in Single Hadron Inclusive Production
Creators: name: Albino, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We define a general scheme for the evolution of fragmentation functions which resums soft gluon logarithms in a manner consistent with fixed order evolution. We present an explicit example of our approach in which double logarithms are resummed using the Double Logarithmic Approximation. We show that this scheme reproduces the Modified Leading Logarithm Approximation in certain limits, and find that after using it to fit quark and gluon fragmentation functions to experimental data,a good description of the data from the largest x values to the peak region in ln (1/x) is obtained. In addition, we develop a treatment of hadron mass effects which gives additional improvements at small x.
description: Prepared for Ringberg Workshop: New Trends in HERA Physics 2005, October 2 - 7, 2005
Batrachichnus salamandroides Geinitz 1861
Creators: name: Moreau, Jean-David
name: Gand, Georges
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Batrachichnus
Batrachichnus salamandroides

description: Batrachichnus salamandroides Geinitz, 1861 (Fig. 5)
Material examined. — Six tracks; four tracks preserved as concave epireliefs and convex hyporeliefs on slabs M486_ 2022.1.6 A and M486_ 2022.1.6 B, respectively; two tracks preserved as concave epireliefs on slab M486_ 2022.1.7.
DESCRIPTION
The tracks are small, plantigrade to semi-plantigrade. Pes imprints are pentadactyl and longer (PL = 1.5-4.0 mm) than wide (PW = 1.3-3.8 mm; Fig. 5 A-E) to as long as wide. The ratio PL/PW varies from 1.0-1.2. Digit imprints are straight and end in an enlarged, rounded tip (Fig. 5 C-E). The divarication angle of digits I-V is up 85°. Pes tracks show a large rounded and well-marked sole (Fig. 5 C-E). Manus imprints are tetradactyl, smaller than pes tracks and as long (ML= 1.3-2.3 mm) as wide (MW= 1.3-2.8 mm) to slightly wider than long. The ML/MW ratio varies from 0.8 to1.0. Digit imprints are straight and end in an enlarged, rounded tip. The divarication angle of digits I-IV varies from 46° to 73°. Manus tracks show a short and large sole with a concave proximal margin (Fig. 5A, B).
REMARKS
The presence of the tetradactyl manus imprints as well as the rounded digit apex are characteristic of the ichnogenera Batrachichnus Woodworth, 1900 and Limnopus Marsh, 1894. The two ichnogenera are distinguished based on their sizes. Manus imprints of Batrachichnus are less than 40 mm in length whereas tracks of Limnopus are larger (up to 200 mm in length; Voigt & Lucas 2018). Regionally, the ichnospecies Batrachichnus salamandroides was reported from the Saint-Affrique Basin (Gand 1987, 1993b; Gand & Haubold 1984), the Lodève Basin (Ellenberger 1983b; Gand & Durand 2006) and the Rodez Basin (Gand 1987). The ichnospecies Batrachichnus salamandroides was also reported from southeastern France, in the Estérel Basin (Provence; Gand & Durand 2006). This ichnospecies is for the first time reported from Le Bousquet.
description: Published as part of Moreau, Jean-David & Gand, Georges, 2022, New data on the Permian ecosystem of the Rodez Basin: ichnofauna (traces of protostomians, tetrapods and fishes), jellyfishes and plants from Banassac-Canilhac (Lozère, southern France), pp. 975-987 in Geodiversitas 44 (31) on page 980, DOI: 10.5252/geodiversitas2022v44a31, http://zenodo.org/record/7342122
Experimental Quantum Generative Adversarial Networks for Image Generation
Creators: name: Huang, He-Liang
name: Du, Yuxuan
name: Gong, Ming
name: Zhao, Youwei
name: Wu, Yulin
name: Wang, Chaoyue
name: Li, Shaowei
name: Liang, Futian
name: Lin, Jin
name: Xu, Yu
name: Yang, Rui
name: Liu, Tongliang
name: Hsieh, Min-Hsiu
name: Deng, Hui
name: Rong, Hao
name: Peng, Cheng-Zhi
name: Lu, Chao-Yang
name: Chen, Yu-Ao
name: Tao, Dacheng
name: Zhu, Xiaobo
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum machine learning is expected to be one of the first practical applications of near-term quantum devices. Pioneer theoretical works suggest that quantum generative adversarial networks (GANs) may exhibit a potential exponential advantage over classical GANs, thus attracting widespread attention. However, it remains elusive whether quantum GANs implemented on near-term quantum devices can actually solve real-world learning tasks. Here, we devise a flexible quantum GAN scheme to narrow this knowledge gap, which could accomplish image generation with arbitrarily high-dimensional features, and could also take advantage of quantum superposition to train multiple examples in parallel. For the first time, we experimentally achieve the learning and generation of real-world hand-written digit images on a superconducting quantum processor. Moreover, we utilize a gray-scale bar dataset to exhibit the competitive performance between quantum GANs and the classical GANs based on multilayer perceptron and convolutional neural network architectures, respectively, benchmarked by the Fréchet Distance score. Our work provides guidance for developing advanced quantum generative models on near-term quantum devices and opens up an avenue for exploring quantum advantages in various GAN-related learning tasks.
description: This work was completed in 2019, and the first version of manuscript was submitted to the journal in January 2020
Identifying the fingerprints of topological states by tuning magnetoresistance in a semimetal: the case of topological half-Heusler Pt1-xAuxLuSb
Creators: name: Chatterjee, Shouvik
name: de Lima, Felipe Crasto
name: Logan, John A.
name: Fang, Yuan
name: Inbar, Hadass
name: Goswami, Aranya
name: Dempsey, Connor
name: Khalid, Shoaib
name: Brown-Heft, Tobias
name: Chang, Yu-Hao
name: Guo, Taozhi
name: Pennacchio, Daniel
name: Wilson, Nathaniel
name: Dong, Jason
name: Chikara, Shalinee
name: Suslov, Alexey
name: Fedorov, Alexei V.
name: Read, Dan
name: Cano, Jennifer
name: Janotti, Anderson
name: Palmstrom, Christopher J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological materials often exhibit remarkably linear, non-saturating magnetoresistance (LMR), which is both of scientific and technological importance. However, the role of topologically non-trivial states in the emergence of such a behaviour has eluded clear demonstration in experiments. Here, by reducing the coupling between the topological surface states (TSS) and the bulk carriers we controllably tune the LMR behavior in Pt1-xAuxLuSb into distinct plateaus in Hall resistance, which we show arise from a quantum Hall phase. This allowed us to reveal how smearing of the Landau levels, which otherwise give rise to a quantum Hall phase, results in an LMR behavior due to strong interaction between the TSS with a positive g-factor and the bulk carriers. We establish that controlling the coupling strength between the surface and the bulk carriers in topological materials can bring about dramatic changes in their magnetotransport behavior. In addition, our work outlines a strategy to reveal macroscopic physical observables of TSS in compounds with a semi-metallic bulk band structure, as is the case in multi-functional Heusler compounds, thereby opening up opportunities for their utilization in hybrid quantum structures.
description: 11 pages, 5 figures. Supplementary Material contains 6 sections and 16 figures
Quantum high-frequency conductivity oscillations in graphene multilayers and nodal semimetals in a tilted magnetic field
Creators: name: Pantoja, Juan C. Medina
name: Sotelo-Campos, Juan
name: Kozlov, Igor V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A new type of angular oscillations of the high-frequency conductivity for conductors with a band-contact line has been predicted. The effect is caused by groups of charge carriers near the self-intersection points of the Fermi surface, where the electron energy spectrum is near-linear and can be described by anisotropic Dirac cone model. The amplitude of the resonance peaks satisfies the simple sum rule. The ease in changing the degree of anisotropy of the Dirac cone due to the angle of inclination of the magnetic field makes the considered type of oscillations attractive for experimental observation of relativistic effects
description: 7 pages, 3 figures, 28 refs