cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SIMULTANEOUS EQUATIONS BAYESIAN BOOTSTRAP
Creators: name: Heckelei, Thomas
name: Mittelhammer, Ronald C.
name: Heckelei, Thomas
name: Mittelhammer, Ronald C.
Publisher: name: Unknown
Year: 2002
Subjects: Research Methods/ Statistical Methods

description: This paper introduces a semi-parametric bootstrapping approach to Bayesian analysis of structural parameters in simultaneous equation systems that extends the single and multivariate regression approaches of Heckelei and Mittelhammer (1996, 2002) to models with endogenous regressors. Monte Carlo evidence demonstrated the considerable accuracy of the procedure in approximating posterior distributions, even for small sample sizes.
SEDIMENT MANAGEMENT IN FLOOD CONTROL DAMS
Creators: name: Pattanapanchai, Maneechit
name: Shah, Farhed A.
name: Annandale, George
name: Pattanapanchai, Maneechit
name: Shah, Farhed A.
name: Annandale, George
Publisher: name: Unknown
Year: 2002
Subjects: Resource /Energy Economics and Policy

description: Reservoir sedimentation reduces economic value and longevity of flood control dams. Periodic sediment removal allows extension of reservoir life. An optimal control model is developed to evaluate alternative sediment management strategies for flood control dams. An illustrative empirical analysis shows that sustainable management is economically desirable for a wide range of parameter values.
Existence and multiplicity of solutions for double-phase Robin problems
Creators: name: Papageorgiou, Nikolaos S.
name: Rădulescu, Vicenţiu D.
name: Repovš, Dušan D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 35J20, Secondary: 35J25, 35J60

description: We consider a double phase Robin problem with a Carathéodory nonlinearity. When the reaction is superlinear but without satisfying the Ambrosetti-Rabinowitz condition, we prove an existence theorem. When the reaction is resonant, we prove a multiplicity theorem. Our approach is Morse theoretic, using the notion of homological local linking.
Short Communication: Quinidine kinetics (A review on PK modelling)
Creators: name: Beg, Mohd Riyaz
Publisher: name: figshare
Year: 2020
Subjects: subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: This article takes you through the possible pharmacokinetic models and parameters for the antiarrhythmic drug Quinidine. The shuffle between the linear and non-linear pharmacokinetics of quinidine make it a candidate for therapeutic drug monitoring. The adverse effect in the form of QT-elongation is one of the major challenges to go for estimating good kinetics of the quinidine. The current article help in providing a wide perspective towards the available models for the quinidine's ADME and compile the information published by several authors to help you to understand the quinidine pharmacokinetic behaviour.
Geometry-induced pulse instability in microdesigned catalysts: the effect of boundary curvature
Creators: name: Qiao, L.
name: Kevrekidis, I. G.
name: Punckt, C.
name: Rotermund, H. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We explore the effect of boundary curvature on the instability of reactive pulses in the catalytic oxidation of CO on microdesigned Pt catalysts. Using ring-shaped domains of various radii, we find that the pulses disappear (decollate from the inert boundary) at a turning point bifurcation, and trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.
description: submitted to Phys. Rev. E
Perturbation Analysis of Gradient-based Adversarial Attacks
Creators: name: Ozbulak, Utku
name: Gasparyan, Manvel
name: De Neve, Wesley
name: Van Messem, Arnout
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: After the discovery of adversarial examples and their adverse effects on deep learning models, many studies focused on finding more diverse methods to generate these carefully crafted samples. Although empirical results on the effectiveness of adversarial example generation methods against defense mechanisms are discussed in detail in the literature, an in-depth study of the theoretical properties and the perturbation effectiveness of these adversarial attacks has largely been lacking. In this paper, we investigate the objective functions of three popular methods for adversarial example generation: the L-BFGS attack, the Iterative Fast Gradient Sign attack, and Carlini & Wagner's attack (CW). Specifically, we perform a comparative and formal analysis of the loss functions underlying the aforementioned attacks while laying out large-scale experimental results on ImageNet dataset. This analysis exposes (1) the faster optimization speed as well as the constrained optimization space of the cross-entropy loss, (2) the detrimental effects of using the signature of the cross-entropy loss on optimization precision as well as optimization space, and (3) the slow optimization speed of the logit loss in the context of adversariality. Our experiments reveal that the Iterative Fast Gradient Sign attack, which is thought to be fast for generating adversarial examples, is the worst attack in terms of the number of iterations required to create adversarial examples in the setting of equal perturbation. Moreover, our experiments show that the underlying loss function of CW, which is criticized for being substantially slower than other adversarial attacks, is not that much slower than other loss functions. Finally, we analyze how well neural networks can identify adversarial perturbations generated by the attacks under consideration, hereby revisiting the idea of adversarial retraining on ImageNet.
description: Accepted for publication in Pattern Recognition Letters, 2020
EVALUATING ALTERNATIVE METHODS OF DEALING WITH MISSING OBSERVATIONS - AN ECONOMIC APPLICATION
Creators: name: Onozaka, Yuko
name: Onozaka, Yuko
Publisher: name: Unknown
Year: 2002
Subjects: Research Methods/ Statistical Methods

description: This paper compares methods to remedy missing value problems in survey data. The commonly used methods to deal with this issue are to delete observations that have missing values (case-deletion), replace missing values with sample mean (mean imputation), and substitute a fitted value from auxiliary regression (regression imputation). These methods are easy to implement but have potentially serious drawbacks such as bias and inefficiency. In addition, these methods treat imputed values as known so that they ignore the uncertainty due to 'missingness', which can result in underestimating the standard errors. An alternative method is Multiple Imputation (MI). In this paper, Expectation Maximization (EM) and Data Augmentation (DA) are used to create multiple complete datasets, each with different imputed values due to random draws. EM is essentially maximum-likelihood estimation, utilizing the interdependency between missing values and model parameters. DA estimates the distribution of missing values given the observed data and the model parameters through Markov Chain Monte Carlo (MCMC). These multiple datasets are subsequently combined into a single imputation, incorporating the uncertainty due to the missingness. Results from the Monte Carlo experiment using pseudo data show that MI is superior to other methods for the problem posed here.
The Effects of Geometry on the Hyperpolarizability
Creators: name: Kuzyk, Mark G.
name: Watkins, David S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Extensive studies in the past have focused on precise calculations of the nonlinear-optical susceptibility of thousands of molecules. In this work, we use the broader approach of considering how geometry and symmetry alone play a role. We investigate the nonlinear optical response of potential energy functions that are given by a superposition of force centers (representing the nuclear charges) that lie in various planar geometrical arrangements. We find that for certain specific geometries, such as an octupolar-like molecule with donors and acceptors of varying strengths at the branches, the hyperpolarizability is near the {\em fundamental limit}. In these cases, the molecule is observed to be well approximated by a three-level model - consistent with the three-level ansatz previously used to calculate the {\em fundamental limits}. However, when the hyperpolarizability is below the {\em apparent limit} (about a factor of thirty below the {\em fundamental limit}) the system is no longer representable by a three-level model; where both two-level and a many-state models are found to be appropriate, depending on the symmetry.
description: 9 pages and 7 Figures
von Arsenlew, Nikolaus, Die geistigen Schicksale des russischen Volkes
Creators: name: Schaeder, Hildegard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 2 (1967): Ökumenische Rundschau, Band 16, Heft 2
Wizualna semiotyka społeczna: gramatyka obrazu w brandingu Airbnb. Analiza strony internetowej. (Visual social semiotics: the grammar of visual design in the branding of Airbnb. A website analysis.)
Creators: name: Lawetter, Diana
Publisher: name: figshare
Year: 2020
Subjects: subject: 120307 Visual Communication Design (incl. Graphic Design)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 150502 Marketing Communications
subject: FOS: Economics and business

description: The analysis of the Airbnb website presented below, based on the principles of social semiotics, is designed to illustrate the processes used in the creation of meanings. Drawing on Halliday's (1994) systemic functional grammar and Kress and van Leeuwen's (2006) visual grammar, the analysis was carried out on the basis of three metafunctions (representative, interpersonal and textual). The aim of the work is to check what kind of content is included in the visual message of the Airbnb website and whether it is consistent with the mission and vision of the company.
El dopaje como problema sociológico
Creators: name: Sánchez-Pato, Antonio
name: Leiva-Arcas, Alejandro
name: Martínez Castro, Sonia María
Publisher: name: Zenodo
Year: 2021
Subjects: sociology, anti-doping, education

description: El fenómeno del dopaje, tanto en el deporte como en otras esferas de la vida social, no es nuevo. Está ligado, desde el punto de vista normativo, al hecho de saltarse las reglas para ganar ventaja en una competición, sea para preservar la vida (en la guerra o en la caza), por ganar un premio, o simplemente por determinar quién es el mejor, el vencedor (en el deporte). Desde el punto de vista lógico, está supeditado al uso de las trampas para conseguir un objetivo o alcanzar una meta.
AN EXPERIMENTAL EXAMINATION OF COMMON AGENCY
Creators: name: Alevy, Jonathan E.
name: Alevy, Jonathan E.
Publisher: name: Unknown
Year: 2002
Subjects: Research Methods/ Statistical Methods

description: An equilibrium solution is developed for a common-agency game that is used to study the structure of regulatory bureaucracy. Contrary to existing results, this equilibrium maintains powerful incentives for the agent. An experiment is conducted to test the competing hypotheses. The implications of common-agency on reciprocity are also examined.
Improving utilization of poultry feedstuffs with supplemental amino acids and enzymes
Creators: name: Chong, Chen Hiung
Publisher: name: University of British Columbia
Year: 2009

description: Four studies were conducted to evaluate threonine and tryptophan requirements by poultry. A purified diet based on the ideal amino acid (AA) profile concept for 0-3 week old broilers was established in the first study. Different ratios of threonine and tryptophan to lysine were evaluated in the second study and the results indicated that dietary digestible threonine and tryptophan for 0-3 week old broilers should be targeted at 65% and 16% of digestible lysine, respectively. Studies using reduced protein (RP) diets based on practical ingredients indicated that dietary total threonine and tryptophan for 0-3 week or 3-6 week old broilers should be targeted at 0.74% (or 4.04% of crude protein (CP)) and 0.23% (or 1.22% of CP) or 0.67% (or 3.20% of CP) and 0.17% (or 0.89% of CP), respectively. The corresponding values for 42-50 week-old layers are 448 and 152 mg/hen/d, respectively. Crystalline AA supplementation of the RP diets improved the AA balance in the diet, thus improving protein utilization efficiency and resulting in reduced nitrogen in the excreta. The nutritive value of palm kernel cake (PKC) was investigated in several studies and it was found to contain low levels of metabolizable energy (ME) and moderate quantities of most nutrients. The low AA digestibility and the low ME of PKC were attributed to nutrient entrapment within the cell, lack of appropriate enzymes to break down mannan, as well as processing method. An enzyme mixture (mannanase, cc-galactosidase and protease) significantly increased the ME of PKC and improved the performance of both broilers and layers fed PKC-based diets. The results indicated that a 20% PKC diet could be used during the broiler starter or grower phase, but not during both phases unless supplemental enzymes were used. Laying hen performance was not different from controls when a 12.5% or 25% PKC-based diet was used. However, layers consumed more of the PKC diets and had poorer feed efficiency than the controls. Egg yolks were paler in birds fed the 25% PKC diets. A computerized feed formulation study showed that PKC is probably best suited for layer diets under the prevailing price situation in Malaysia.
CONCENTRATION, MARKET POWER, AND COST EFFICIENCY IN THE CORN SEED INDUSTRY
Creators: name: Fernandez-Cornejo, Jorge
name: Spielman, David J.
name: Fernandez-Cornejo, Jorge
name: Spielman, David J.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The paper presents a model developed to examine the effects of industry concentration on market power and cost efficiency in the seed industry. In addition, the paper presents preliminary measures of the relative strengths of these effects for the case of the U.S. corn seed industry over the past 3 decades. The model uses conjectural elasticities and is estimated using data collected from USDA sources. The empirical results allow us to distinguish between the market power and cost effects of concentration, and to ascertain the tradeoff between the cost efficiency and market power resulting from higher concentration in the corn seed industry.
Charge Conservation, Entropy Current, and Gravitation
Creators: name: Aoki, Sinya
name: Onogi, Tetsuya
name: Yokoyama, Shuichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new class of vector fields to construct a conserved charge in a general field theory whose energy momentum tensor is covariantly conserved. We show that there always exists such a vector field in a given field theory even without global symmetry. We also argue that the conserved current constructed from the (asymptotically) time-like vector field can be identified with the entropy current of the system. As a piece of evidence we show that the conserved charge defined therefrom satisfies the first law of thermodynamics for an isotropic system with a suitable definition of temperature. We apply our formulation to several gravitational systems such as the expanding universe, Schwarzschild and BTZ black holes, and gravitational plane waves. We confirm the conservation of the proposed entropy density under any homogeneous and isotropic expansion of the universe, the precise reproduction of the Bekenstein-Hawking entropy incorporating the first law of thermodynamics, and the existence of gravitational plane wave carrying no charge, respectively. We also comment on the energy conservation during gravitational collapse in simple models.
description: 14 pages, 2 figures, published version
Pests and Agricultural Production under Climate Change
Creators: name: Ameden, Holly A.
name: Just, David R.
name: Ameden, Holly A.
name: Just, David R.
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy

description: Although the effect of climate change on agricultural pests has been studied by biologists, thus far, large-scale assessments of climate change and agriculture have not included the impact of pests. We develop a simple theoretical model of farmer-pest interaction under climate change and explore the potential impacts on land values.
CASH MARKET OR CONTRACT? HOW TECHNOLOGY AND CONSUMER DEMAND INFLUENCE THE DECISION
Creators: name: Dimitri, Carolyn
name: Jaenicke, Edward C.
name: Dimitri, Carolyn
name: Jaenicke, Edward C.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business

description: The use of contracts for producing and marketing agricultural commodities has become nearly universal in some sectors. Two factors are most frequently cited as being responsible for the use of agricultural contracts. The first, a demand-side factor, is the development of strong consumer preferences for specific qualities. The second, a supply-side factor, is technological change. In this paper, we use a principal agent framework to model how consumer demand and technology enter into a firm's decision to use contracts or the cash market.
Dark-Energy Evolution Across the Cosmological-Constant Boundary
Creators: name: Caldwell, Robert R.
name: Doran, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the properties of dark energy models for which the equation-of-state, w, defined as the ratio of pressure to energy density, crosses the cosmological-constant boundary w = -1. We adopt an empirical approach, treating the dark energy as an uncoupled fluid or a generalized scalar field. We describe the requirements for a viable model, in terms of the equation-of-state and sound speed. A generalized scalar field cannot safely traverse w = -1, although a pair of scalars with w > -1 and w < -1 will work. A fluid description with a well-defined sound speed can also cross the boundary. Contrary to expectations, such a crossing model does not instantaneously resemble a cosmological constant at the moment w = -1 since the density and pressure perturbations do not necessarily vanish. But because a dark energy with w < -1 dominates only at very late times, and because the dark energy is not generally prone to gravitational clustering, then crossing the cosmological-constant boundary leaves no distinct imprint.
description: 6 pages, 2 figures
TRENDS IN UNIVERSITY AG-BIOTECH PATENT PRODUCTION
Creators: name: Barham, Bradford L.
name: Foltz, Jeremy D.
name: Kim, Kwansoo
name: Barham, Bradford L.
name: Foltz, Jeremy D.
name: Kim, Kwansoo
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This work exploits information on U.S. patents to identify trends in university ag-biotech patenting and citation performance. It sets forth some key issues concerning patterns of university ag-biotech patenting and then provides an empirical analysis on the evolving trends. Land Grant Universities account for most U.S. ag-biotech patents. The data show a path dependent innovation pattern, in which there also seems to be a culture of patenting that develops at certain universities. Evidence shows that ag-biotech patents are more cited than the average university patent. Inequalities across Land Grant Universities are also evident in the production of ag-biotech patents, although perhaps not to a much greater degree than underlying inequalities in funding and research qualities. The paper closes by considering how the evidence offered might be used to advance the public discussion regarding trends in agricultural biotechnology research in the U.S.
Isomorphic components in diagrams of maximum temperature, minimum temperature and COVID-19 Infection Rate in Tehran in mid-2020
Creators: name: Besharati, Mohammad Reza
Publisher: name: Zenodo
Year: 2021
Subjects: Isomorphic components, Temperature, COVID-19, SARS-Cov-2, Infection Rate, Ozone Air Pollution

description: Ozone air pollution?!
Model-driven digital thread platform for cyber-physical systems
Creators: name: Chaudhary, Hafiz Ahmad Awais
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: The latest advancements in Cyber-Physical Systems revolve around the increased adoption of cutting edge technologies, such as the Internet of Things, edge computing, artificial intelligence, machine learning and data analytics. The goal is to enhance real-time interaction between digital and physical entities and enhance their predictive capabilities. The challenge of addressing requirements related to integration and achieving interoperability within the space of Industry 4.0 requires a platform approach to address the heterogeneity in the system of systems, storage capabilities, devices and the ecosystem involved. Conventional approaches are limited in their scope covering only the individual aspects and often rely on bespoke glue code that is difficult to produce and even harder to maintain. This can result in poor code quality with an overhead of increased maintenance requirements, e.g., resources, time and cost, and reduction in agility. To overcome these challenges, a model-driven Digital Thread Platform for CPS is proposed that offers a baseline architecture and systematizes the integration methodology through a layered Domain Specific Languages approach. This approach covers the integration space domain by domain, technology by technology and platform by platform; leading towards a generalizable and highly reusable solution. Altogether, this work presents the successful integration of 19 independent technologies in two distinct Low-code development environments with the production of 26 processes and pipelines and the definition of 62 SIBs in 25 distinct DSLs. The effectiveness of the proposed approach has been demonstrated through use cases, examples, and applications across multiple domains. The proposed platform brings cohesiveness to the involved heterogeneous systems and platforms, making them easier to understand, develop, and maintain. Furthermore, it also empowers domain experts to actively participate in the development cycle. There has been a significant reduction in both the new integrations and the development efforts, and over time, the extent of reuse will continue to grow, particularly for the most standard applications.
Visual grammar in the branding of Airbnb.docx
Creators: name: Lawetter, Diana
Publisher: name: figshare
Year: 2020
Subjects: subject: 120307 Visual Communication Design (incl. Graphic Design)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 150502 Marketing Communications
subject: FOS: Economics and business

description: The analysis of the Airbnb website presented below, based on the principles of social semiotics, is designed to illustrate the processes used in the creation of meanings. Drawing on Halliday's (1994) systemic functional grammar and Kress and van Leeuwen's (2006) visual grammar, the analysis was carried out on the basis of three metafunctions (representative, interpersonal and textual). The aim of the work is to check what kind of content is included in the visual message of the Airbnb website and whether it is consistent with the mission and vision of the company.
USING REAL OPTIONS TO EVALUATE PRODUCER INVESTMENT IN NEW GENERATION COOPERATIVES
Creators: name: Sporleder, Thomas L.
name: Bailey, Michael D.
name: Sporleder, Thomas L.
name: Bailey, Michael D.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness

description: New Generation Cooperatives have emerged as a contemporary means for farmers to invest in further processing activities. This paper considers real options as the basis for evaluating producer investment in a start-up cooperative that involves technological uncertainty. The investment and risk inherent in producer membership in an NGC is analyzed using real options theory logic. Real options theory has recently been extended to technology positioning projects and how the extent of uncertainty influences the value of a technology "option". Conventional net present value formulas have been shown to be limited when the conditions of the investment require substantial commitment under uncertainty, such as investments in technology. Implications for producers are drawn from the analysis. Producers always have the alternative of not investing in the initial start-up but waiting and buying in at a later time, perhaps when less uncertainty prevails. Results indicate that producers are better able to evaluate investment in a NGC using real options.
THE VALUE OF INFORMATION FOR VARIABLE RATE NITROGEN APPLICATIONS: A COMPARISON OF SOIL TEST, TOPOGRAPHICAL, AND REMOTE SENSING INFORMATION
Creators: name: Hurley, Terrance M.
name: Kilian, Bernard
name: Malzer, Gary L.
name: Dikici, Huseyin
name: Hurley, Terrance M.
name: Kilian, Bernard
name: Malzer, Gary L.
name: Dikici, Huseyin
Publisher: name: Unknown
Year: 2001
Subjects: Crop Production/Industries

description: We explore the value of soil test, topographical, and remote sensing information for guiding variable rate fertilizer applications in corn. Results suggest combining topographical and remote sensing information is more valuable than conventional soil tests. Considered separately, topographical and remote sensing information is not always as valuable as soil tests.
On the origin of multiple ordered phases in PrFe4P12
Creators: name: Kiss, Annamaria
name: Kuramoto, Yoshio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The nature of multiple electronic orders in skutterudite PrFe_4P_{12} is discussed on the basis of a model with antiferro-quadrupole (AFQ) interaction of Γ_3 symmetry. The high-field phase can be reproduced qualitatively provided (i) ferro-type interactions are introduced between the dipoles as well as between the octupoles of localized f-electrons, and (ii) separation is vanishingly small between the Γ_1-Γ_4^{(1)} crystalline electric field (CEF) levels. The high-field phase can have either the same ordering vector q=(1,0,0) as in the low-field phase, or a different one q=0 depending on the parameters. In the latter case, distortion of the crystal perpendicular to the (111) axis is predicted. The corresponding anomaly in elastic constants should also appear. The electrical resistivity is calculated with account of scattering within the CEF quasi-quartet. It is found that the resistivity as a function of the direction of magnetic field shows a sharp maximum around the (111) axis at low temperatures because of the level crossing.
description: 16 pages, 5 figures
CT-CPP: Coverage Path Planning for 3D Terrain Reconstruction Using Dynamic Coverage Trees
Creators: name: Shen, Zongyuan
name: Song, Junnan
name: Mittal, Khushboo
name: Gupta, Shalabh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This letter addresses the 3D coverage path planning (CPP) problem for terrain reconstruction of unknown obstacle rich environments. Due to sensing limitations, the proposed method, called CT-CPP, performs layered scanning of the 3D region to collect terrain data, where the traveling sequence is optimized using the concept of a coverage tree (CT) with a TSP-inspired tree traversal strategy. The CT-CPP method is validated on a high-fidelity underwater simulator and the results are compared to an existing terrain following CPP method. The results show that CT-CPP yields significant reduction in trajectory length, energy consumption, and reconstruction error.
Stupperich, Robert (Hrsg.), Die Russische Orthodoxe Kirche in Lehre und Leben
Creators: name: Papandreu, Damaskēnos
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 2 (1967): Ökumenische Rundschau, Band 16, Heft 2
OPTIMAL REGULATION UNDER ASYMMETRIC INFORMATION AND RISK AVERSION WITH AN APPLICATION TO POLLUTION CONTROL
Creators: name: Bontems, Philippe
name: Thomas, Alban
name: Bontems, Philippe
name: Thomas, Alban
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy

description: We consider a general model of regulation for a risk-averse agent who observes her private-information parameter after the contract is signed. The latter specifies a quota for input used in production, whose decomposition among different production stages is unknown to the regulator. We characterize the optimal solution to the regulator problem, under general assumptions on net expected social surplus and the agent utility function. We apply the model to the case of pollution control by an environmental agency, where the agent is a risk-averse farmer facing production risk because of nitrogen leaching, and the private-information parameter measures the soil capacity in retaining nitrogen. The farmer sequential decision model is estimated on French crop production data and the results are then used to calibrate and simulate the optimal contract.
THE ALLOCATIVE EFFICIENCY OF LAND RENTAL MARKETS IN TRANSITION AGRICULTURE
Creators: name: Vranken, Liesbet
name: Mathijs, Erik
name: Vranken, Liesbet
name: Mathijs, Erik
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: This paper examines the functioning of the Hungarian land rental market. The allocative inefficiency of the land rental market is determined by calculating the marginal value productivity of land and using rental prices. Regional differences in allocative inefficiency are then correlated with demographic and socio-economic variables and with labor market-related factors.
Elliptic flow of thermal photons in relativistic nuclear collisions
Creators: name: Chatterjee, Rupa
name: Frodermann, Evan S.
name: Heinz, Ulrich W.
name: Srivastava, Dinesh K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We predict the transverse momentum (pT) dependence of elliptic flow of thermal photons for Au+Au collisions at the Relativistic Heavy Ion Collider. We model the system hydrodynamically, assuming formation of a thermalized quark-gluon plasma at some early time, followed by cooling through expansion, hadronization and decoupling. Photons are emitted throughout the expansion history. Contrary to hadron elliptic flow, which hydrodynamics predicts to increase monotonically with pT, the elliptic flow of thermal photons is predicted to first rise and then fall again as pT increases. Photon elliptic flow at high pT is shown to reflect the quark momentum anisotropy at early times when it is small, whereas at low pT it is controlled by the much larger pion momentum anisotropy during the late hadronic emission stage. An interesting structure is predicted at intermediate pT ~ 0.4 GeV/c where photon elliptic flow reflects the momenta and the (compared to pions) reduced v2 of heavy vector mesons in the late hadronic phase.
description: 4 pages, 4 figures. Amended Fig. 3 and corresponding discussion, with complete explanation of the low-pT structure of photon elliptic flow around pT=400 MeV/c
CROP INSURANCE CONTRACTING: MORAL HAZARD COSTS THROUGH SIMULATION
Creators: name: Weaver, Robert D.
name: Kim, Taeho
name: Weaver, Robert D.
name: Kim, Taeho
Publisher: name: Unknown
Year: 2001
Subjects: Risk and Uncertainty

description: Moral hazard costs are estimated using a new crop insurance design approach. The simulation results show that incorporation of incentive compatibility constraints into insurance design can substantially reduce moral hazard costs.
Masses of the components of SB2 binaries observed with Gaia. V. Accurate SB2 orbits for 10 binaries and masses of the components of 5 binaries
Creators: name: Halbwachs, Jean-Louis
name: Kiefer, Flavien
name: Lebreton, Yveline
name: Boffin, Henri M. J.
name: Arenou, Frédéric
name: Bouquin, Jean-Baptiste Le
name: Famaey, Benoît
name: Pourbaix, Dimitri
name: Guillout, Patrick
name: Salomon, Jean-Baptiste
name: Mazeh, Tsevi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Double-lined spectroscopic binaries (SB2s) are one of the main sources of stellar masses, as additional observations are only needed to give the inclinations of the orbital planes in order to obtain the individual masses of the components. For this reason, we are observing a selection of SB2s using the SOPHIE spectrograph at the Haute-Provence observatory in order to precisely determine their orbital elements. Our objective is to finally obtain masses with an accuracy of the order of one percent by combining our radial velocity (RV) measurements and the astrometric measurements that will come from the Gaia satellite. We present here the RVs and the re-determined orbits of 10 SB2s. In order to verify the masses we will derive from Gaia, we obtained interferometric measurements of the ESO VLTI for one of these SB2s. Adding the interferometric or speckle measurements already published by us or by others for 4 other stars, we finally obtain the masses of the components of 5 binary stars, with masses ranging from 0.51 to 2.2 solar masses, including main-sequence dwarfs and some more evolved stars whose location in the HR diagram has been estimated.
description: 16 pages, 7 figures and 10 others attached files; to be published in MNRAS
Decoherence Driven Quantum Transport
Creators: name: Kim, Sang Wook
name: Choi, Mahn-Soo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new mechanism to generate a dc current of particles at zero bias based on a noble interplay between coherence and decoherence. We show that a dc current arises if the transport process in one direction is maintained coherent while the process in the opposite direction is incoherent. We provide possible implementations of the idea using an atomic Michelson and an atomic Aharonov-Bohm interferometer.
description: 4 pages, 3 figures
U.S. - MEXICO SUGAR DISPUTE: IMPACT OF NAFTA ON THE SUGAR MARKET
Creators: name: Heboyan, Vahe
name: Ames, Glenn C.W.
name: Gunter, Lewell F.
name: Houston, Jack E.
name: Heboyan, Vahe
name: Ames, Glenn C.W.
name: Gunter, Lewell F.
name: Houston, Jack E.
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: A side agreement to the North American Free Trade Agreement (NAFTA) enables Mexico to ship more duty-free sugar to the United States than under the pre-1994 restrictive country-specific, tariff-rate quota (TRQ) policy. But U.S. and Mexican negotiators disagree over the issue of exactly how much sugar Mexico can actually export to the U.S. under the NAFTA side agreement. Disagreement focuses on which version of the NAFTA side agreement governs this issue. The U.S. argues that a 1993 side letter limits Mexican sugar exports to the U.S. to 250,000 MT. In contrast, Mexico insists it is entitled to ship all of its surplus sugar, currently 600,000 MT, to U.S. Consequently, Mexico has asked for a dispute-settlement panel to resolve the question under NAFTA. Three TRQ liberalization scenarios were simulated to show the possible policy implications. The simulation results report that, due to the sugar TRQ liberalization with Mexico, the net U.S. social welfare increases but U.S. producers lose.
The Littlest Higgs in Anti-de Sitter Space
Creators: name: Thaler, Jesse
name: Yavin, Itay
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We implement the SU(5)/SO(5) littlest Higgs theory in a slice of 5D Anti-de Sitter space bounded by a UV brane and an IR brane. In this model, there is a bulk SU(5) gauge symmetry that is broken to SO(5) on the IR brane, and the Higgs boson is contained in the Goldstones from this breaking. All of the interactions on the IR brane preserve the global symmetries that protect the Higgs mass, but a radiative potential is generated through loops that stretch to the UV brane where there are explicit SU(5) violating boundary conditions. Like the original littlest Higgs, this model exhibits collective breaking in that two interactions must be turned on in order to generate a Higgs potential. In AdS space, however, collective breaking does not appear in coupling constants directly but rather in the choice of UV brane boundary conditions. We match this AdS construction to the known low energy structure of the littlest Higgs and comment on some of the tensions inherent in the AdS construction. We calculate the 5D Coleman-Weinberg effective potential for the Higgs and find that collective breaking is manifest. In a simplified model with only the SU(2) gauge structure and the top quark, the physical Higgs mass can be of order 200 GeV with no considerable fine tuning (25%). We sketch a more realistic model involving the entire gauge and fermion structure that also implements T-parity, and we comment on the tension between T-parity and flavor structure.
description: 42 pages, 7 figures, 3 tables; v2: minor rewording, JHEP format; v3: to match JHEP version
FOOD SAFETY PERCEPTIONS AND BEHAVIOR OF CONSUMERS IN THE SOUTHERN BLACK BELT OF THE U.S.
Creators: name: Adu-Nyako, Kofi
name: Thompson, Alton
name: Adu-Nyako, Kofi
name: Thompson, Alton
Publisher: name: Unknown
Year: 1999
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: food safety
subject: risk perception
subject: ethnic

description: A new data set is used to study differences in the food safety perceptions and behavior of black and white consumers in the Southern Black Belt of the US. Analysis of general food safety risk perceptions and ethnic origin indicate no significant differences in the perceptions of blacks and whites. Further, the issue of 'misperception' by consumers of the origin of most foodborne illness is not explained by sociodemograhic factors but rather consumers information sources and awareness of foodborne pathogens.
Two-Photon Effects in Lepton-AntiLepton Pair Photoproduction from a Nucleon Target using Real Photons
Creators: name: Hoodbhoy, Pervez
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the production of a lepton-antilepton pair by real photons off a hadronic target. The interference of one and two photon exchange amplitudes leads to a charge asymmetry term that may be calculated explicitly in the large-t limit in terms of hadronic distribution amplitudes. A rather compact expression emerges for the leading order asymmetry at fixed angle in the centre-of-mass of the lepton pair. The magnitude appears sizeable and is approximately independent of the pair mass in the asymptotic limit.
description: 14 pages, 7 figures. Title changed, references added
Knowledge-Based Learning of Nonlinear Dynamics and Chaos
Creators: name: Jiahao, Tom Z.
name: Hsieh, M. Ani
name: Forgoston, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Extracting predictive models from nonlinear systems is a central task in scientific machine learning. One key problem is the reconciliation between modern data-driven approaches and first principles. Despite rapid advances in machine learning techniques, embedding domain knowledge into data-driven models remains a challenge. In this work, we present a universal learning framework for extracting predictive models from nonlinear systems based on observations. Our framework can readily incorporate first principle knowledge because it naturally models nonlinear systems as continuous-time systems. This both improves the extracted models' extrapolation power and reduces the amount of data needed for training. In addition, our framework has the advantages of robustness to observational noise and applicability to irregularly sampled data. We demonstrate the effectiveness of our scheme by learning predictive models for a wide variety of systems including a stiff Van der Pol oscillator, the Lorenz system, and the Kuramoto-Sivashinsky equation. For the Lorenz system, different types of domain knowledge are incorporated to demonstrate the strength of knowledge embedding in data-driven system identification.
description: 8 pages, 12 figures in main text, 6 figures and 8 tables in supplement
Weak lensing mass reconstructions of the ESO Distant Cluster Survey
Creators: name: Clowe, D.
name: Schneider, P.
name: Aragon-Salamanca, A.
name: Bremer, M.
name: De Lucia, G.
name: Halliday, C.
name: Jablonka, P.
name: Milvang-Jensen, B.
name: Pello, R.
name: Poggianti, B.
name: Rudnick, G.
name: Saglia, R.
name: Simard, L.
name: White, S.
name: Zaritsky, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present weak lensing mass reconstructions for the 20 high-redshift clusters i n the ESO Distant Cluster Survey. The weak lensing analysis was performed on deep, 3-color optical images taken with VLT/FORS2, using a composite galaxy catalog with separate shape estimators measured in each passband. We find that the EDisCS sample is composed primarily of clusters that are less massive than t hose in current X-ray selected samples at similar redshifts, but that all of the fields are likely to contain massive clusters rather than superpositions of low mass groups. We find that 7 of the 20 fields have additional massive structures which are not associated with the clusters and which can affect the weak lensing mass determination. We compare the mass measurements of the remaining 13 clusters with luminosity measurements from cluster galaxies selected using photometric redshifts and find evidence of a dependence of the cluster mass-to-light ratio with redshift. Finally we determine the noise level in the shear measurements for the fields as a function of exposure time and seeing and demonstrate that future ground-based surveys which plan to perform deep optical imaging for use in weak lensing measurements must achieve point-spread functions smaller than a median of 0.6" FWHM.
description: 35 pages, 24 figures, accepted to A&A, a version with better figure resolution can be found at http://www.mpa-garching.mpg.de/ediscs/papers.html
EMPIRICAL ISSUES IN CROP REINSURANCE DECISIONS
Creators: name: Nayak, Govindaray
name: Turvey, Calum G.
name: Nayak, Govindaray
name: Turvey, Calum G.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: Risk and Uncertainty
subject: Reinsurance
subject: crop insurance
subject: agricultural risks

description: This paper investigates the role of reinsurance in the managing the liquidity or reserve fund risks facing a crop insurer. Using 31 years of data, combined with Monte Carlo simulation the paper illustrates a mechanism for calculating reinsurance premiums and determining the post insurance risk profile. The insured event is over a range of loss ratios, and the focus of the paper is on reserve fund balances.
OPTIMAL AGRICULTURAL LAND PRICING POLICIES UNDER MULTIPLE EXTERNALITIES IN A GLOBAL ECONOMY
Creators: name: Peterson, Jeffrey M.
name: Peterson, Jeffrey M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: International Relations/Trade
subject: agricultural land use
subject: externalities
subject: international trade

description: Agriculture has recently been noted as a provider of non-market environmental benefits in addition to its traditional recognition as a source of negative externalities from polluting inputs. In this paper, a general equilibrium framework is used to determine optimal land subsidies and input taxes in agriculture. When agriculture generates both amenities and pollution, the optimal subsidy does not equal the net extra-market value of agricultural land. If opened to international trade, a small economy will fully correct externalities, while large economies have an incentive to set policies at non-internalizing levels to exploit terms-of-trade effects.
Symmetry energy properties of neutron-rich nuclei from the coherent density fluctuation model applied to nuclear matter calculations with Bonn potentials
Creators: name: Danchev, I. C.
name: Antonov, A. N.
name: Kadrev, D. N.
name: Gaidarov, M. K.
name: Sarriguren, P.
name: de Guerra, E. Moya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive the values of nuclear symmetry energy, its components, as well as pressure in finite nuclei at saturation density from their corresponding values in nuclear matter obtained in non-relativistic Brueckner-Hartree-Fock calculations with the realistic Bonn B and Bonn CD potentials using the coherent density fluctuation model in the framework of a self-consistent Skyrme-Hartree-Fock plus BCS method. We focus on three isotopic chains of spherical nuclei (Ni, Sn, and Pb) and compare our results with those obtained with an effective Brueckner density-dependent potential. The role of the three-body forces on the considered quantities is also studied and discussed.
Bea, Augustin Kardinal / Visser't Hooft, W.A., Friede zwischen Christen ...
Creators: name: Schulz, Otmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 2 (1967): Ökumenische Rundschau, Band 16, Heft 2
Generalized Measure of Quantum Fisher Information
Creators: name: Sone, Akira
name: Cerezo, M.
name: Beckey, Jacob L.
name: Coles, Patrick J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this work, we present a lower bound on the quantum Fisher information (QFI) which is efficiently computable on near-term quantum devices. This bound itself is of interest, as we show that it satisfies the canonical criteria of a QFI measure. Specifically, it is essentially a QFI measure for subnormalized states, and hence it generalizes the standard QFI in this sense. Our bound employs the generalized fidelity applied to a truncated state, which is constructed via the $m$ largest eigenvalues and their corresponding eigenvectors of the probe quantum state $ρ_θ$. Focusing on unitary families of exact states, we analyze the properties of our proposed lower bound, and demonstrate its utility for efficiently estimating the QFI.
description: v4: close to published version
Physics-based Modeling and Experimental Characterization of Endurance in Filamentary VCM ReRAM
Creators: name: Kopperberg, N.
name: Wiefels, Stefan
name: Hofmann, K.
name: Otterstedt, J.
name: Wouters, D. J.
name: Waser, R.
name: Menzel, Stephan
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: 2nd Neuromorphic Computing Day, Jülich, Germany, 29 Aug 2023 - 30 Aug 2023