cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A companion to AB Pic at the planet/brown dwarf boundary
Creators: name: Chauvin, G.
name: Lagrange, A. -M.
name: Zuckerman, B.
name: Dumas, C.
name: Mouillet, D.
name: Song, I.
name: Beuzit, J. -L.
name: Lowrance, P.
name: Bessell, M. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report deep imaging observations of the young, nearby star AB Pic, a member of the large Tucana-Horologium as sociation. We have detected a faint, red source 5.5" South of the star with JHK colors compatible with that of a young substellar L dwarf. Follow-up observations at two additional epochs confirm, with a confidence level of 4.7sigma, that the faint red object is a companion to AB Pic rather than it being a stationary background object. A low resolution K-band spectrum indicates an early-L spectral type for the companion. Finally, evolutionary model predictions based on the JHK photometry of AB Pic b indicate a mass of 13 to 14 MJup if its age is ~30Myr. Is AB Pic b a massive planet or a minimum mass brown dwarf?
description: 4 pages, 3 figures. accepted in Astronomy & Astrophysics
Second harmonic conversion enhancement in 2-D planar photonic crystals
Creators: name: Jiang, Weiyang
Publisher: name: University of British Columbia
Year: 2009

description: Two dimensional (2D) periodic texture in a thin GaAs semiconductor waveguide is used to dramatically enhance the second harmonic conversion efficiency of infrared laser radiation incident on the structure from above. A square lattice of through-holes was etched into a 140 nm thick layer of GaAs supported on a ~ 1 μm thick alumina cladding layer. The pitch of 770 nm, and hole diameter of 320 nm, were chosen so that fundamental light at a wavelength of ~ 2 μm could resonantly excite the lowest order band of leaky photonic eigenstates characteristic of the strongly textured membrane. The energy of the fundamental and second harmonic are both less than the band gap energy of the GaAs, thus avoiding any linear absorption. Used in this way, the structure acts effectively like a nonlinear cavity, where strong internal fields are generated in the GaAs waveguide core layer when the incident light excites a leaky photonic eigenstate. The 2nd order polarization excited in the GaAs can also be resonant with photonic eigenstates at twice the fundamental frequency and in-plane wavevector. Both model calculations and experimental results (obtained by J. Mondia at the University of Toronto) clearly demonstrate that the second harmonic conversion efficiency is dramatically influenced when the fundamental and/or the second harmonic fields are resonant with photonic bands. Peak enhancements of over 1000 times are observed under the "doubleresonance" condition when both the fundamental and second harmonic fields excite photonic eigenstates, and the enhancement clearly tracks the in-coming and out-going dispersion of the photonic bands.
Visualising the role of presynaptic calcium in the cerebellar cortex using a novel transgenic mouse
Creators: name: Hamad, Salem M.
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: Evidence suggests that CB1Rs and NMDARs may be expressed at PF presynaptic terminals and that these receptors may modulate synaptic transmission at synapses formed with cerebellar PCs. Presynaptic effects of receptors and signalling pathways are hard to establish because synaptic terminals are generally too small to allow direct electrical recording. We have explored the use of a transgenic mouse (SyG37) that expresses a ratiometric calcium indicator selectively in presynaptic terminals. Using a combination of fEPSP recordings, fluorescence measurements of presynaptic calcium and pharmacological manipulation, we have explored the use of SyG37 mice for measuring presynaptic activity and synaptic modulation in the cerebellar cortex. We first established that this sensor was widely expressed in the cerebellum but crucially within PF terminals. In response to different patterns of electrical stimulation, calcium dependent responses were reliably detected within ensembles and even single presynaptic boutons. The effects of changing the intensity, frequency and number of stimuli to PF terminals were studied. SyGCaMP2 responses were calcium dependent and inhibited by application of TTX. Direct activation of the GCL produced responses that propagated directly above the point of stimulation through ascending axons. Signals then bifurcated to spread in either direction along PFs. Direct activation of the ML produced responses that propagated along PFs. Activation of NMDARs reduced synaptic transmission through a direct effect on PF terminals since the effect was maintained when all excitatory and inhibitory synaptic transmission was blocked. This effect was due to a decrease in the number of presynaptic boutons that responded to stimulation. Activation of CB1Rs also produced a reduction in synaptic activity that remained when inhibitory and excitatory synaptic transmission was blocked, also suggesting a direct effect on PF terminals. In this case, both the number of boutons responding to stimulation and the amount of calcium entering single terminals was reduced.
A note on static metrics
Creators: name: Bartnik, Robert
name: Tod, Paul
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Conditions are given which, subject to a genericity condition on the Ricci tensor, are both necessary and sufficient for a 3-metric to arise from a static spacetime metric.
description: latex, 4 pages, no figures
title: Spillover Effects in Government Bond Spreads: Evidence from a GVAR Model
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Niehof, Britta
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Philipps Curve
Taylor Rule
Economics
Wirtschaft
Stochastic Differential Equations
New Keynesian Model

description: This paper analyses the main drivers of sovereign bond spreads in a globalised world. Specifically, we account for international spillovers of bond spreads by adding an additional driver, namely, financial markets, and allowing interactions across countries and markets. We contribute to the VAR literature by taking a global VAR approach, which encompasses international linkages and spillovers and also deals with the issue of identification and the large dimensionality. We find significant spillovers across countries and across markets. Moreover, we reveal that bond spreads are driven by stock markets. Furthermore, highly indebted countries react more strongely to foreign shocks than do stable economies. European bond markets are primarily driven by European shocks, whereas U.S. shocks have a higher impact on European countries that are in crisis and other non-European OECD countries. Our results demonstrate that financial market participants, central bankers, and fiscal policymakers need to be aware of global interdependencies, as bond spread volatility is driven by different factors for each country.
Atacama Compact Array Measurements of the Molecular Mass in the NGC 5044 Cooling Flow Group
Creators: name: Schellenberger, Gerrit
name: David, Laurence P.
name: Vrtilek, Jan
name: O'Sullivan, Ewan
name: Lim, Jeremy
name: Forman, William
name: Sun, Ming
name: Combes, Francoise
name: Salome, Philippe
name: Jones, Christine
name: Giacintucci, Simona
name: Edge, Alastair
name: Gastaldello, Fabio
name: Temi, Pasquale
name: Brighenti, Fabrizio
name: Bardelli, Sandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The fate of cooling gas in the centers of galaxy clusters and groups is still not well understood, as is also the case for the complex processes of triggering star formation in central dominant galaxies (CDGs), re-heating of cooled gas by AGN, and the triggering/feeding of supermassive black hole outbursts. We present CO observations of the early type galaxy NGC 5044, which resides at the center of an X-ray bright group with a moderate cooling flow. For our analysis we combine CO(2-1) data from the 7m antennae of the Atacama Compact Array (ACA), and the ACA total power array (TP). We demonstrate, using the 7m array data, that we can recover the total flux inferred from IRAM 30m single dish observations, which corresponds to a total molecular mass of about 4x10^7 Msun. Most of the recovered flux is blueshifted with respect to the galaxy rest frame and is extended on kpc-scales, suggesting low filling factor dispersed clouds. We find 8 concentrations of molecular gas out to a radius of 10 arcsec (1.5 kpc), which we identify with giant molecular clouds. The total molecular gas mass is more centrally concentrated than the X-ray emitting gas, but extended in the north-east/south-west direction beyond the IRAM 30m beam. We also compare the spatial extent of the molecular gas to the Halpha emission: The CO emission coincides with the very bright Halpha region in the center. We do not detect CO emission in the fainter Halpha regions. Furthermore, we find two CO absorption features spatially located at the center of the galaxy, within 5 pc projected distance of the AGN, infalling at 255 and 265 km/s relative to the AGN. This indicates that the two giant molecular clouds seen in absorption are most likely within the sphere of influence of the supermassive black hole.
description: 23 pages, 16 figures
title: Demographic transition and political stability: Does corruption matter?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Farzanegan, Mohammad Reza
name: Witthuhn, Stefan
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: youth population
Economics
Wirtschaft
corruption
political stability
demographic transition

description: A demographic transition resulting from an increase in the size of the young working age population can be a blessing or a curse for economic performance. We focus on the political stability effects of a larger youth population and hypothesize that corruption matters in this nexus. Using panel data covering the period of 2002–2012 for more than 150 countries, we find a negative interaction effect between the relative size of the youth population (17-25 years old) within the total working age population (15-64 years old) and corruption on political stability. This finding is robust, controlling for country and time fixed effects and a set of control variables that may affect stability. The negative interaction term between corruption and the youth population remains robust when we control for the persistency of political stability and the possible endogeneity of the main variables of interest through dynamic panel data estimations. Our findings shed more light on the political turmoil in the Arab world, with the so-called Arab Spring.
Additional file 2 of Community-based educational interventions for prevention of type II diabetes: a global systematic review and meta-analysis
Creators: name: Tayebeh Shirvani
name: Javadivala, Zeinab
name: Somayeh Azimi
name: Abdolreza Shaghaghi
name: Fathifar, Zahra
name: H. D. R. Devender Bhalla
name: Mohammadhiwa Abdekhoda
name: Nadrian, Haidar
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Supplementary Data: file 2: Characteristics of community-based educational interventions designed to prevent or delay Type 2 Diabetes.
Layered Complex Networks
Creators: name: Kurant, Maciej
name: Thiran, Patrick
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Many complex networks are only a part of larger systems, where a number of coexisting topologies interact and depend on each other. We introduce a layered model to facilitate the description and analysis of such systems. As an example of its application we study the load distribution in three real-life transportation systems, where the lower layer is the physical infrastructure and the upper layer represents the traffic flows. This layered view allows us to capture the fundamental differences between the real load and commonly used load estimators, which explains why these estimators fail to approximate the real load.
description: 5 pages, 5 figures
The localization regime in a nutshell
Creators: name: Moutal, N.
name: Grebenkov, D. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: High diffusion-sensitizing magnetic field gradients have been more and more often applied nowadays to achieve a better characterization of the microstructure. As the resulting spin-echo signal significantly deviates from the conventional Gaussian form, various models have been employed to interpret these deviations and to relate them with the microstructural properties of a sample. In this paper, we argue that the non-Gaussian behavior of the signal is a generic universal feature of the Bloch-Torrey equation. We provide a simple yet rigorous description of the localization regime emerging at high extended gradients and identify its origin as a symmetry breaking at the reflecting boundary. We compare the consequent non-Gaussian signal decay to other diffusion NMR regimes such as slow-diffusion, motional-narrowing and diffusion-diffraction regimes. We emphasize limitations of conventional perturbative techniques and advocate for non-perturbative approaches which may pave a way to new imaging modalities in this field.
Giant Planet Companion to 2MASSW J1207334-393254
Creators: name: Chauvin, G.
name: Lagrange, A. -M.
name: Dumas, C.
name: Zuckerman, B.
name: Mouillet, D.
name: Song, I.
name: Beuzit, J. -L.
name: Lowrance, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report new VLT/NACO imaging observations of the young, nearby brown dwarf 2MASSW J1207334-393254 and its suggested planetary mass companion (2M1207 b). Three epochs of VLT/NACO measurements obtained over nearly one year show that the planetary mass companion candidate shares the same proper motion and, with a high confidence level, is not a stationary background object. This result confirms the status of 2M1207 b as of planetary mass (5 times the mass of Jupiter) and the first image of a planetary mass companion in a different system than our own. This discovery offers new perspectives for our understanding of chemical and physical properties of planetary mass objects as well as their mechanisms of formation.
description: 4 pages, 2 figures. accepted in Astronomy & Astrophysics
The role of Lsr2 phosphorylation in regulation of mycobacterial growth and gene expression
Creators: name: Kawther A.H. Alqaseer
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: One-fourth of the world population is estimated to have latent tuberculosis infection associated with dormant Mycobacterium tuberculosis bacilli, which are more resistant to antimicrobial treatment and can resuscitate, resulting in the development of active tuberculosis. M. tuberculosis has a wide range of regulatory proteins that control growth, including the protein kinase B (PknB) that controls peptidoglycan biosynthesis and growth by phosphorylating several substrates. Lsr2 is one of the substrates of PknB that is highly conserved in mycobacteria. Lsr2 is DNA-binding protein that controls gene transcription and protects the nucleoid from damage.This project was focused on the investigation of Lsr2 phosphorylation and the role of Lsr2 in DNA binding, and regulation of gene expression in mycobacterial growth and dormancy.Recombinant M. tuberculosis Lsr2 and its phosphomimetic form (Lsr2T112D) were purified and used for kinase assay, DNA binding experiments, and generation of polyclonal antibodies. Mass-spectrometry confirmed that recombinant PknB phosphorylated recombinant Lsr2 in vitro at threonine 8, threonine 21, threonine 31 and threonine 112. Phosphoablative forms of Lsr2 were generated and used for complementation of lsr2 deletion mutants of Mycobacterium. smegmatis and M, tuberculosis. In M. smegmatis, none of the individual phosphoablative mutants (T8A, T22A, or T112A) complemented the defect in colony morphology. In M. tuberculosis, T8A, T22A, and T31A variants complemented the growth defect on solid medium, but T112A did not. Full-length Lsr2 showed non-specific binding to various DNA fragments, and this binding was completely abolished by PknB-mediated phosphorylation. Lsr2T112D showed reduced binding to DNA. Consequently, different DNA binding patterns in M. tuberculosis expressing Lsr2WT, and phosphoablative Lsr2T112A would result in alteration of gene expression of target genes.Finally, Lsr2 from Mycobacterium marinum was also investigated in this project. I found that M. marinum lsr2 was essential for the growth of this bacterium since the gene could be only deleted from the strain containing a second copy of lsr2. M. marinum Lsr2 is missing the terminal threonine (T112) and serine 113 was not phosphorylated by PknB in vivo or in vitro, suggesting that DNA binding by M. marinum Lsr2 is regulated by a different mechanism. These findings suggest that PknB controls mycobacterial biology by phosphorylating the global transcriptional regulator Lsr2.
Simulations of Dust in Interacting Galaxies
Creators: name: Jonsson, Patrik
name: Cox, T. J.
name: Primack, Joel R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new Monte-Carlo radiative-transfer code, Sunrise, is used to study the effects of dust in N-body/hydrodynamic simulations of interacting galaxies. Dust has a profound effect on the appearance of the simulated galaxies. At peak luminosities, about 90% of the bolometric luminosity is absorbed, and the dust obscuration scales with luminosity in such a way that the brightness at UV/visual wavelengths remains roughly constant. A general relationship between the fraction of energy absorbed and the ratio of bolometric luminosity to baryonic mass is found. Comparing to observations, the simulations are found to follow a relation similar to the observed IRX-Beta relation found by Meurer et al (1999) when similar luminosity objects are considered. The highest-luminosity simulated galaxies depart from this relation and occupy the region where local (U)LIRGs are found. This agreement is contingent on the presence of Milky-Way-like dust, while SMC-like dust results in far too red a UV continuum slope to match observations. The simulations are used to study the performance of star-formation indicators in the presence of dust. The far-infrared luminosity is found to be reliable. In contrast, the H-alpha and far-UV luminosity suffer severely from dust attenuation, and dust corrections can only partially remedy the situation.
description: 4 pages, 5 figures, to appear in the proceedings of the conference "The Spectral Energy Distribution of Gas-Rich Galaxies", eds. C.C. Popescu & R.J. Tuffs (Heidelberg, October 2004)
Additional file 4 of d-Tryptophan enhances the reproductive organ-specific expression of the amino acid transporter homolog Dr-SLC38A9 involved in the sexual induction of planarian Dugesia ryukyuensis
Creators: name: Maezawa, Takanobu
name: Ishikawa, Masaki
name: Kiyono Sekii
name: Nagamatsu, Go
name: Furukawa, Ryohei
name: Kobayashi, Kazuya
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Supplementary Table S1. Primer sets used for qRT-PCR.
Breakdown of `phase rigidity' and variations of the Fano effect in closed Aharonov-Bohm interferometers
Creators: name: Aharony, Amnon
name: Entin-Wohlman, Ora
name: Otsuka, Tomohiro
name: Katsumoto, Shingo
name: Aikawa, Hisashi
name: Kobayashi, Kensuke
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Although the conductance of a closed Aharonov-Bohm interferometer, with a quantum dot on one branch, obeys the Onsager symmetry under magnetic field reversal, it needs not be a periodic function of this field: the conductance maxima move with both the field and the gate voltage on the dot, in an apparent breakdown of `phase rigidity'. These experimental findings are explained theoretically as resulting from multiple electronic paths around the interferometer ring. Data containing several Coulomb blockade peaks, whose shapes change with the magnetic flux, are fitted to a simple model, in which each resonant level on the dot couples to a different path around the ring.
The Value of Pregnancy Testing Beef Cows
Creators: name: Cook, Billy
name: Biermacher, Jon T.
name: Childs, M. Dan
name: Cook, Billy
name: Biermacher, Jon T.
name: Childs, M. Dan
Publisher: name: Unknown
Year: 2007
Subjects: Livestock Production/Industries

description: Less than half of cow/calf producers in south-central Oklahoma and north-central Texas utilize pregnancy testing. The objective was to illustrate to beef cattle producers the effect that pregnancy testing and the subsequent adoption of an effective culling practice on first-time open cows has on net profitability of the cow/calf enterprise.
title: Lower Sanctions, Greater Antitrust Compliance? Cartel Conduct with Imperfect Information about Enforcement Risk
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Paha, Johannes
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: Economics
Wirtschaft

description: This article provides a model of two risk-neutral firms that may cooperate to achieve a goal that is potentially illegal. The model assumes enforcement risk and firms that are imperfectly informed about antitrust law enforcement. It is shown that compliance training, which educates the agents about law enforcement, may prevent hardcore cartels. Compliance training programs may also promote forms of cooperation that are beneficial for customers. The article shows that a competition authority can sometimes spur the implementation of compliance programs by imposing lower sanctions on wrongdoers.
Proben eines bedeutsamen arabischen Evangelien-Textes
Creators: name: Peters, Curt
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 33 Nr. 2 (1936): Oriens christianus, Band 33, Heft 2
Supplementary Materials from The pitfalls of inferring virus–virus interactions from co-detection prevalence data: application to influenza and SARS-CoV-2
Creators: name: Domenech de Cellès, Matthieu
name: Goult, Elizabeth
name: Casalegno, Jean-Sebastien
name: Kramer, Sarah C.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: There is growing experimental evidence that many respiratory viruses—including influenza and SARS-CoV-2—can interact, such that their epidemiological dynamics may not be independent. To assess these interactions, standard statistical tests of independence suggest that the prevalence ratio—defined as the ratio of co-infection prevalence to the product of single-infection prevalences—should equal unity for non-interacting pathogens. As a result, earlier epidemiological studies aimed to estimate the prevalence ratio from co-detection prevalence data, under the assumption that deviations from unity implied interaction. To examine the validity of this assumption, we designed a simulation study that built on a broadly applicable epidemiological model of co-circulation of two emerging or seasonal respiratory viruses. By focusing on the pair influenza–SARS-CoV-2, we first demonstrate that the prevalence ratio systematically underestimates the strength of interaction, and can even misclassify antagonistic or synergistic interactions that persist after clearance of infection. In a global sensitivity analysis, we further identify properties of viral infection—such as a high reproduction number or a short infectious period—that blur the interaction inferred from the prevalence ratio. Altogether, our results suggest that ecological or epidemiological studies based on co-detection prevalence data provide a poor guide to assess interactions among respiratory viruses.
Automated Topical Component Extraction Using Neural Network Attention Scores from Source-based Essay Scoring
Creators: name: Zhang, Haoran
name: Litman, Diane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: While automated essay scoring (AES) can reliably grade essays at scale, automated writing evaluation (AWE) additionally provides formative feedback to guide essay revision. However, a neural AES typically does not provide useful feature representations for supporting AWE. This paper presents a method for linking AWE and neural AES, by extracting Topical Components (TCs) representing evidence from a source text using the intermediate output of attention layers. We evaluate performance using a feature-based AES requiring TCs. Results show that performance is comparable whether using automatically or manually constructed TCs for 1) representing essays as rubric-based features, 2) grading essays.
description: Published in the ACL 2020
Ergodicity Breaking Transition in Finite Disordered Spin Chains
Creators: name: Šuntajs, Jan
name: Bonča, Janez
name: Prosen, Tomaž
name: Vidmar, Lev
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study disorder-induced ergodicity breaking transition in high-energy eigenstates of interacting spin-1/2 chains. Using exact diagonalization we introduce a cost function approach to quantitatively compare different scenarios for the eigenstate transition. We study ergodicity indicators such as the eigenstate entanglement entropy and the spectral level spacing ratio, and we consistently find that an (infinite-order) Kosterlitz-Thouless transition yields a lower cost function when compared to a finite-order transition. Interestingly, we observe that the transition point in finite systems exhibits nearly thermal properties, i.e., ergodicity indicators at the transition are close to the random matrix theory predictions.
Simulated Analysis of Drought's Impact on Different Cow-Calf Production Systems
Creators: name: Stockton, Matthew C.
name: Wilson, Roger K.
name: Stockton, Matthew C.
name: Wilson, Roger K.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Livestock Production/Industries
subject: Drought Mitigation
subject: Firm Level
subject: Residual Grazing
subject: Simulation
subject: Stochastic

description: Five representative firm level stochastic simulation models were constructed using historical production cost, cattle prices, weather information and scientifically collected production data from the Gundmendson Sandhills Laboratory operated by University of Nebraska. The five hundred iterative results indicate inclusion of crop residual grazing as a viable drought mitigation tool.
Sandpile behaviour in discrete water-wave turbulence
Creators: name: Nazarenko, Sergey
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We construct a sandpile model for evolution of the energy spectrum of the water surface waves in finite basins. This model take into account loss of resonant wave interactions in discrete Fourier space and restoration of these interactions at larger nonlinearity levels. For weak forcing, the waveaction spectrum takes a critical $ω^{-10}$ shape where the nonlinear resonance broadening is equal to the Fourier grid spacing. The energy cascade in this case takes form of rare weak avalanches on the critical slope background. For larger forcing, this regime is replaced by a continuous cascade and Zakharov-Filonenko $ω^{-8}$ waveaction spectrum. For intermediate forcing levels, both scalings will be seen: $ω^{-10}$ at small and $ω^{-8}$ at large frequencies. The interval between these two scaling regions is characterised by strong avalanches.
description: 7 pages
Producer-Level Hedging Effectiveness of Class III Milk Futures
Creators: name: Sanders, Dwight R.
name: Schneider, Jonathan
name: Altman, Ira J.
name: Sanders, Dwight R.
name: Schneider, Jonathan
name: Altman, Ira J.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Mailbox milk prices from a representative dairy operation in Illinois are used to gauge the farm-level hedging effectiveness of Class III milk futures. The results indicate a hedge ratio of 0.85 can reduce price risk by over 90%. The importance of seasonal basis components is highlighted.
On the dbar-dressing method applicable to heavenly equation
Creators: name: Bogdanov, L. V.
name: Konopelchenko, B. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The $\dbar$-dressing scheme based on local nonlinear vector $\dbar$-problem is developed. It is applicable to multidimensional nonlinear equations for vector fields, and, after Hamiltonian reduction, to heavenly equation. Hamiltonian reduction is described explicitely in terms of the $\dbar$-data. An analogue of Hirota bilinear identity for heavenly equation hierarchy is introduced, $τ$-function for the hierarchy is defined. Addition formulae (generating equations) for the $τ$-function are found. It is demonstrated that $τ$-function for heavenly equation hierarchy is given by the action for $\dbar$-problem evaluated on the solution of this problem.
description: 11 pages
Essays On Social And Economic Networks
Creators: name: Cortes-Corrales, Sebastian
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: My thesis consists of three chapters centred on the importance of social and economic networks in strategic decision-making processes from a theoretical and experimental perspective. The first chapter studies the “second order” effects of agents asymmetries, in terms of the ability to turn resources in winning probabilities or the value of the winning, in a network of conflicts. In the second chapter we introduce the Dirichlet Covariate Model (Campbell and Mosimann, 1987) for empirical analysis of compositional data. To illustrate the use of this method, we design and implement a novel experiment on an untested game played on weighted network to test equilibrium predictions. The third paper investigates the problem of dynamically assigning teams of workers to sets of tasks in a firm, when there is incomplete information about the workers’ productivities. The model presented in this chapter seeks to shed light on the trade-off between information acquisition and profit maximisation that firms might face in incomplete information environments.
Additional file 1 of Putting patients first: development of a patient advocate and general practitioner-informed model of patient-centred care
Creators: name: Brickley, Bryce
name: Williams, Lauren T.
name: Morgan, Mark
name: Ross, Alyson
name: Trigger, Kellie
name: Ball, Lauren
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplementary Table 1. Participant Suggestions to Improve the Model.
Fluctuation-dissipation theorem and fundamental photon commutation relations in lossy nanostructures using quasinormal modes
Creators: name: Franke, Sebastian
name: Ren, Juanjuan
name: Hughes, Stephen
name: Richter, Marten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide theory and formal insight on the Green function quantization method for absorptive and dispersive spatial-inhomogeneous media in the context of dielectric media. We show that a fundamental Green function identity, which appears, e.g., in the fundamental commutation relation of the electromagnetic fields, is also valid in the limit of non-absorbing media. We also demonstrate how the zero-point field fluctuations yields a non-vanishing surface term in configurations without absorption, when using a more formal procedure of the Green function quantization method. We then apply the presented method to a recently developed theory of photon quantization using quasinormal modes [Franke et al., Phys. Rev. Lett. 122, 213901 (2019)] for finite nanostructures embedded in a lossless background medium. We discuss the strict dielectric limit of the commutation relations of the quasinormal mode operators and present different methods to obtain them, connected to the radiative loss for non-absorptive but open resonators. We show exemplary calculations of a fully three-dimensional photonic crystal beam cavity, including the lossless limit, which supports a single quasinormal mode and discuss the limits of the commutation relation for vanishing damping (no material loss and no radiative loss).
description: 20 pages, 4 figures
Additional file 1 of The effect of silica desiccation under different storage conditions on filter-immobilized environmental DNA
Creators: name: Allison, Michael J.
name: Round, Jessica M.
name: Bergman, Lauren C.
name: Mirabzadeh, Ali
name: Allen, Heather
name: Weir, Aron
name: Helbing, Caren C.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: 60506 Virology

description: Additional file 1. Schematic of the method for creating a standard DNA slurry. Four millimeter-diameter biopsies of American Bullfrog (LICA) tail fin and a Spirulina flake were added to 1 mL TE buffer pH 8, then homogenized into a slurry. A 10−6 dilution using recirculated fresh water from the Aquatics Facility was made which was further diluted tenfold to the final working slurry. This dilution was determined to be optimal as it was the most dilute slurry to still obtain 100% detections for the target species. One liter final working slurry was filtered and the filter was stored at the indicated temperatures (n = 5 per temperature). Each 1 L experimental sample was matched by a 1 L negative control sample of bottled distilled water. A quarter of each filter was processed at each of 4 times (1–4) at 1 week, 1 month, 5 months, and 12 months.
The Economic Potential of Composting Breeder and Pullet Litter with Eggshell Waste
Creators: name: Kemper, Nathan
name: Goodwin, Harold L.
name: Hamm, Sandra J.
name: Kemper, Nathan
name: Goodwin, Harold L.
name: Hamm, Sandra J.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: composting
subject: poultry industry
subject: waste management
subject: product development

description: Expansion of the wastes coordinated by the Ozark Poultry Litter Bank is needed. This study examined a method of combining low value poultry wastes to produce compost. Analyses of four compost blends and two hypothetical production systems provide entrepreneurs with the production and financial information to make informed decisions.
Asymptotic Boundary Conditions and Square Integrability in the Partition Function of AdS Gravity
Creators: name: Acosta, Joel
name: Garbarz, Alan
name: Goya, Andres
name: Leston, Mauricio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There has been renewed interest in the path-integral computation of the partition function of AdS3 gravity, both in the metric and Chern-Simons formulations. The one-loop partition function around Euclidean AdS3 turns out to be given by the vacuum character of Virasoro group. This stems from the work of Brown and Henneaux (BH) who showed that, in AdS3 gravity with sensible asymptotic boundary conditions, an infinite group of (improper) diffeomorphisms arises which acts canonically on phase space as two independent Virasoro symmetries. The gauge group turns out to be composed of so-called ``proper'' diffeomorphisms which approach the identity at infinity fast enough. However, it is sometimes far from evident to identify where BH boundary conditions enter in the path integral, and much more difficult to see how the improper diffeomorphisms are left out of the gauge group. In particular, in the metric formulation, Giombi, Maloney and Yin obtained the one-loop partition function around thermal AdS3 resorting to the heat kernel method to compute the determinants coming from the path integral. Here we identify how BH boundary conditions follow naturally from the usual requirement of square-integrability of the metric perturbations. Also, and equally relevant, we clarify how the quotient by only proper diffeomorphisms is implemented, promoting the improper diffeomorphisms to symmetries in the path integral. Our strategy is general enough to apply to other approaches where square integrability is assumed. Finally, we show that square integrability implies that the asymptotic symmetries in higher dimensional AdS gravity are just isometries.
description: 10 pages
Post-Buyout Burley Tobacco Production and Trends in the Traditional Burley Regions of Tennessee, North Carolina and Virginia
Creators: name: Tiller, Kelly
name: Jones, Lakeya
name: Tiller, Kelly
name: Jones, Lakeya
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: tobacco
subject: quota buyout
subject: farmer survey
subject: tobacco production

description: The 2004 federal tobacco buyout ended the longstanding tobacco quota and price support programs, and also eliminated all tobacco reporting requirements. Producers are adjusting to the free market with scant information. The 2006 Burley Tobacco Survey provides an initial glimpse of post-buyout burley tobacco production, trends, challenges, and expectations.
Positioning Cotton in the Market for Quality: An Application of Market Segmentation for West Texas
Creators: name: Jung, Sangnyeol
name: Lyford, Conrad P.
name: Jung, Sangnyeol
name: Lyford, Conrad P.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: cotton economics
subject: market segmentation
subject: needs assessment
subject: West Texas cotton

description: This study provides guidance for cotton marketing efforts by determining major market segments with quality thresholds for West Texas. Given its present quality performance, great potential segments are from higher-end international segments with significant value-added. Moreover, the potential to serve these market segments is growing with improvements in production technology.
Low temperature properties of a new Kondo Lattice compound Yb$_2$Ir$_3$Sn$_5$
Creators: name: Singh, Yogesh
name: Sannabhadti, R. S.
name: Ramakrishnan, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the preparation and results of our magnetic and transport measurements on a new Yb-based ternary compound Yb$_2$Ir$_3$Sn$_5$. This compound forms in the orthorhombic Cmc21 structure. DC magnetic susceptibility between 1.8 K and 300 K reveal that Yb is in its magnetic trivalent state in this compound. Electrical resistivity measurements down to 1. 5K show a behavior typical of Kondo lattice compounds with a minimum in resistivity around 8K and a coherence peak near 3K. AC magnetic susceptibility down to 100mK reveals an anti-ferromagnetic transition below 1.35 K.
description: 3 pdf pages, 2 figures, 8references
title: Search Balance and Product and Process Innovations
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Backfisch, Martin
Publisher: name: Philipps-Universität Marburg
Year: 2014
Subjects: innovation performance
innovation
knowledge sources
Economics
Wirtschaft
innovative search
search balance
Openness

description: Firms’ search for external knowledge is one aspect of knowledge integration in the innovation process. The literature has investigated innovation and the breadth of search in different information channels. We introduce the concept of search balance reflecting the heterogeneity of a firm’s knowledge base. Results from German Community Innovation Survey data shows that search balance is positively connected to the introduction of product as well as process innovations. The connection is stronger for process innovations. The relative balance between all information sources used by firms is important for process innovations, but less so for product innovations. Product innovations rely on specific search directions where internal or market-based knowledge is found, offering an alternative to balanced search. Such an alternative does not exist for process innovations such that knowledge from specific information channels has to be accompanied by balanced search in other channels to be successfully used for process innovations.
Days Available for Harvesting Lignocellulosic Biomass
Creators: name: Hwang, Seonghuyk
name: Epplin, Francis M.
name: Hwang, Seonghuyk
name: Epplin, Francis M.
Publisher: name: Unknown
Year: 2007
Subjects: Resource /Energy Economics and Policy

description: A reasonably precise estimate of the number of harvest days is necessary to determine the investment in harvest machines required to support a lignocellulosic biorefinery. This study was undertaken to determine probability distributions for the number of suitable field work days per month for harvesting perennial grasses such as switchgrass.
Byzantinisches in den Weihnachtstexten des römischen Antiphonarius Officii
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 33 Nr. 2 (1936): Oriens christianus, Band 33, Heft 2
Inhibition of return : dissociating attentional and oculomotor components
Creators: name: Hunt, Amelia Rebecca
Publisher: name: University of British Columbia
Year: 2009

description: The term Inhibition of Return (IOR) describes a performance decrement for stimuli appearing at a recently attended location. It has been hypothesized that one, possibly two, components contribute to the IOR effect: an attentional component and a motor component. In a series of three experiments we demonstrate that both components can contribute to the IOR effect. Using the fixation offset effect (FOE), which can facilitate oculomotor response execution, as a measure of a motor contribution to the IOR effect, we show that the FOE and IOR interact, although not in the manner observed previously. Using changes in target luminance as a measure of an attentional contribution to IOR, we show that IOR and target luminance interact but only when the responses were manual. Together these data reveal two components that can each contribute to IOR. The motorbased component is present when the response is oculomotor, and the attentional component is present when the response is manual.
Bio-optical algorithm description from Bio-optical evidence for increasing Phaeocystis dominance in the Barents Sea
Creators: name: A. Orkney
name: T. Platt
name: B.E. Narayanaswamy
name: I. Kostakis
name: H.A. Bouman
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences

description: This supplement provides a detailed description of the structure and performance of the ocean-colour algorithm we use to distinguish different phytoplankton assemblages in the Barents Sea from MODIS-A ocean colour data.
Additional file 3 of The effect of silica desiccation under different storage conditions on filter-immobilized environmental DNA
Creators: name: Allison, Michael J.
name: Round, Jessica M.
name: Bergman, Lauren C.
name: Mirabzadeh, Ali
name: Allen, Heather
name: Weir, Aron
name: Helbing, Caren C.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: 60506 Virology

description: Additional file 3. Standard curves of gBlocks synthetic DNA serial dilution curves for (A) eFrog3 and (B) eLICA1 eDNA assays used to calculate copy number in Fig. 3. There is a very strong linear relationship between cycle threshold (Ct) and copies/reaction.
Modeling the Structural Change in American Frozen Catfish Fillet Demand: An Analysis of Country of Origin Labeling and the Implementation of an Import Tariff
Creators: name: Nalley, Lawton Lanier
name: Nalley, Lawton Lanier
Publisher: name: Unknown
Year: 2007
Subjects: Demand and Price Analysis

description: This paper uses the Almost Ideal Demand System (AIDS) model to analyze two issues 1) The effect of the implementation of mandatory country of origin labeling and 2) the effect of the tariff on Vietnamese basa. The data would suggest that the first effort (COOL), in 2002, of the CFA to help protect domestic production may have actually had adverse effects. That is, by mandating that Vietnamese catfish be labeled as basa, a new market was created. This new market seems to have favorably differentiated the Vietnamese product from the American product. The second attempt to protect the domestic industry was to implement a tariff on all imports in February 2003. Since the market had been segmented by the mandatory COOL (2002) before the tariff implementation (2003) it would seem as if the structural change in demand for Vietnamese and American products was dominated by the labeling effect not the tariff effect. That is, the relative magnitude of the COOL increased the demand for Vietnamese basa more than the relative magnitude of the tariff decreased the demand for basa. So, by segmenting the market through COOL and favorably differentiating the market towards the Vietnamese basa the relative magnitude of the tariff was mitigated.