cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effects of Government Payments on Agricultural Land Use
Creators: name: Si, Chengyu
name: Nadolnyak, Denis
name: Si, Chengyu
name: Nadolnyak, Denis
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: land use, government payments, Southeast, Area Base Models, Multinomial Fractional Logit

description: Land is an important resource for agriculture production and urban development. The allocation of land use influences the supply of agricultural products and environmental quality. This paper investigates the impacts of government payments on agricultural land use allocation in the Southeast. We employ the Area Base Model and Multinomial Fractional Logit Model following Hardie and Parks (1997) using county level data from Georgia, Alabama, and Florida rural counties. Preliminary results show that government payments have significant positive impacts on farmland allocation. In particular, for the land enrolled in the CRP program, the effect of government payments is positive and significant, which indicates that these payments are an efficient policy instrument and corroborated previous research. Also, distance to the Atlanta Central Business District is a significant factor in land use allocation in Georgia.
Market Power in the Dairy Alternative Beverage Industry in the United States
Creators: name: Yang, Tingyi
name: Dharmasena, Senarath
name: Yang, Tingyi
name: Dharmasena, Senarath
Publisher: name: Unknown
Year: 2018
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Dairy alternative beverages
subject: Nielsen data
subject: Hedonic metric
subject: Barten synthetic model
subject: Market power
subject: Price cost margins

description: Dairy alternative beverage market in the United States has been growing over the past decade. Although almond milk and soymilk are the fastest growing categories, there exist numerous other products such as coconut milk, rice milk, cashew nut milk, hazelnut milk, etc. There are well-known national brands as well as not-so-well-known private label and store brands that compete among dairy alternative beverages. These firms compete strategically for market share by differentiating their products by brand, price, advertising, promotion, positioning and merchandising. Using market level weekly purchase data from 2015 Nielsen scanner panel, price cost margins and market power of different brands is estimated assuming the presence of pure strategy Bertrand-Nash equilibrium in prices. Demand parameters are estimated using attribute space hedonic metric approach within the Barten synthetic demand model. Hedonic variables with regards to product attributes such as calorie, fat, protein, calcium and other nutrients are used to estimate demand elasticities using qualitative factor distances within the hedonic matrix of parameters associated with attributes. Preliminary analysis revealed own-price demand elasticities of soymilk, almond milk, and coconut milk at -1.13, -0.5, and 0.46. These are used to calculate price cost margins under various industry structures (such as in Nevo, 2000).
Optical properties of metal nanoparticles with arbitrary shapes
Creators: name: Sosa, Ivan
name: Noguez, Cecilia
name: Barrera, R. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the optical properties of metallic nanoparticles with arbitrary shape. We performed theoretical calculations of the absorption, extinction and scattering efficiencies, which can be directly compared with experiments, using the Discrete Dipole Approximation (DDA). In this work, the main features in the optical spectra have been investigated depending of the geometry and size of the nanoparticles. The origin of the optical spectra are discussed in terms of the size, shape and material properties of each nanoparticle, showing that a nanoparticle can be distinguish by its optical signature.
description: 19 pages + 8 figures
An Introduction to Sustainability and Local Food Choices for First Year Students at Place Vanier: Meet Your Farmer
Creators: name: Darden, Morgan
name: Lansdorp, Olga
name: Leung, Yi Sum Mimi
name: Park, Seulgi
name: Ren, Zoujun
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Fano-ADC(2,2) method for electronic decay rates
Creators: name: Kolorenč, Přemysl
name: Averbukh, Vitali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Fano-ADC is a family of ab initio methods for prediction of electronic decay widths in excited, singly- and doubly-ionized systems. It has been particularly successful in elucidating the geometry dependence of the inter-atomic decay widths in clusters and facilitated prediction of new electronic decay phenomena. However, the available Fano-ADC schemes are limited to the second order treatment of the initial state and fist-order treatment of the final states of the decay. This confines the applicability of the Fano-ADC approach to first-order decay processes, e.g. normal but not double Auger decay, and compromises the numerical accuracy of the schemes through the unbalanced treatment of electronic correlation. Here we introduce the ADC(2,2) approximation for singly ionized states which describes both initial and final states of the decay up to second order. We use the new scheme to construct the Fano-ADC(2,2) approximation for the decay widths and show that it provides superior accuracy for the decay widths of a series of processes. Moreover, the Fano-ADC(2,2) method provides access to second-order decay processed, such as double Auger decay, which are qualitatively beyond reach of the previously available Fano-ADC implementations.
description: 41 pages, 4 figures
Agrilus ribeiroi Curletti & Migliore 2014, sp. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus ribeiroi

description: Agrilus ribeiroi sp. nov.
— Cor bronzeada com pubescência amarela.
— Formato esbelto e alongado.
— Antenômeros apicais com lobo acuminado.
— Mentoneira levemente incisa.
— Laterotergitos pubescentes.
— Três pares de manchas elitrais das quias as duas anteriores são apenas perceptíveis.
— Unhas medianas e posteriores bífidas.
— Edeago com perfil mais estreito e alongado.
— Edeago claviforme.
— Pênis com ápice arredonadado com apófise apical acuminada.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 96, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
On self-protecting singlets in cuprate superconductors
Creators: name: Röhler, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The basal area (Cu-Cu grid) of the cuprate superconductors not only tends to shrink on hole doping, as expected from single electron quantum chemistry, but exhibits also an electronically incompressible "hump'' around optimum doping n_opt = 0.16. The hump collapses near critical doping n_crit = 0.19. We analyze the origin of the hump in terms of a classical liquid of interacting incompressible particles in a container with antiferromagnetic walls. Oxygen holes interacting with the wall form singlets, protect themselves against other holes by an incompressible "spin fence'', and thus interact also with the lattice. Occupation of the CuO_2 lattice with holes must therefore follow a non-double-occupant constraint also for the oxygen cage enclosing the copper hole. Closest packing of self-protecting singlets is found to occur around critical doping; closest packing of paired self-protecting singlets around optimum doping. These singlet-states are bosonic, but are not magnetic polarons.
description: reviewed version, 7 pages, 10 figures
KH2PO4 + Host Matrix (Alumina / SiO$_2$) Nanocomposite: Raman Scattering Insight
Creators: name: Shchur, Ya.
name: Andrushchak, A. S.
name: Strelchuk, V. V.
name: Nikolenko, A. S.
name: Adamiv, V. T.
name: Andrushchak, N. A.
name: Göring, P.
name: Huber, P.
name: Kityk, A. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the synthesis and Raman scattering characterization of composite materials based on the hostnanoporous matrices filled with nanostructured KH2PO4 (KDP) crystal. Silica (SiO2) and anodized aluminium oxide (AAO) were used as host matrices with various pore diameters, inter-pore spacing and morphology. The structure of the nanocomposites was investigated by X-ray diffraction and scanning electron microscopy. Raman scattering reveals the creation of one-dimensional nanostructured KDP inside the SiO2 matrix. We clearly observed the stretching ν1, ν3 and bending ν2 vibrations of PO4 tetrahedral groups in the Raman spectrum of SiO2 + KDP. In Raman scattering spectra of AAO + KDP nanocomposite, the broad fluorescence background of AAO matrix dominates to a great extent, hindering thus the detecting of the KDP compound spectral response.
description: 4 pages, 2 figures; 21st International Conference on Transparent Optical Networks (ICTON) 2019
Agrilus terraereginae Blackburn 1892
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus terraereginae

description: Agrilus terraereginae Blackburn, 1892
 Agrilus terraereginae Blackburn, 1892: 220.
 Material examinado: AUSTRÁLIA, Queensland, Cairns 1 ex., 02.I.52.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 98, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Search for intermediate resonances and dark gauge bosons in $J/ψ\rightarrowγπ^0η^{\prime}$
Creators: name: BESIII Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on an analysis of the decay $J/ψ\rightarrowγπ^0η^{\prime}$ using a sample of $(1310.6 \pm 7.0) \times ~10^6~ J/ψ$ events collected with the BESIII detector. We search for the CP-violating process $η_c\rightarrowπ^0η^{\prime}$ and a dark gauge boson $U'$ in $J/ψ\rightarrow U^{\prime}η^{\prime},~U^{\prime}\rightarrowγπ^0,~π^0\rightarrowγγ$. No evidence of an $η_{c}$ signal is observed in the $π^0η^{\prime}$ invariant-mass spectrum and the upper limit of the branching fraction is determined to be $7.2 \times~10^{-5}$ at the 90\% confidence level. We also find no evidence of $U'$ production and set upper limits at the 90\% confidence level on the product branching fraction $\mathcal{B}(J/ψ\rightarrow U^{\prime} η^{\prime}) \times \mathcal{B}(U^{\prime} \rightarrow π^{0} γ)$ in the range between $(0.8 - 6.5)\times 10^{-7}$ for 0.2 $\leq m_{U^{\prime}} \leq 2.1 $GeV$/c^{2}$. In addition, we study the process $J/ψ\rightarrowωη^{\prime}$ with $ω\rightarrowγπ^0$. The branching fraction of $J/ψ\rightarrowωη^{\prime}$ is found to be $(1.87\pm0.09\pm0.12) \times 10^{-4}$, where the first uncertainty is statistical and the second is systematic, with a precision that is improved by a factor of 1.4 over the previously published BESIII measurement.
Meson-baryon scattering in resummed baryon chiral perturbation theory using time-ordered perturbation theory
Creators: name: Ren, X. -L.
name: Epelbaum, E.
name: Gegelia, J.
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Integral equations for meson-baryon scattering amplitudes are obtained by utilizing time-ordered perturbation theory for a manifestly Lorentz-invariant formulation of baryon chiral perturbation theory. Effective potentials are defined as sums of two-particle irreducible contributions of time-ordered diagrams and the scattering amplitudes are obtained as solutions of integral equations. Ultraviolet renormalizability is achieved by solving integral equations for the leading order amplitude and including higher order corrections perturbatively. As an application of the developed formalism, pion-nucleon scattering is considered.
description: 15 pages, 2 figures
Fractional Lindstedt series
Creators: name: Gallavotti, Giovanni
name: Gentile, Guido
name: Giuliani, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J40, 37C55, 70K43, 70H08

description: The parametric equations of the surfaces on which highly resonant quasi-periodic motions develop (lower-dimensional tori) cannot be analytically continued, in general, in the perturbation parameter, i.e. they are not analytic functions of the perturbation parameter. However rather generally quasi-periodic motions whose frequencies satisfy only one rational relation ("resonances of order 1") admit formal perturbation expansions in terms of a fractional power of the perturbation parameter, depending on the degeneration of the resonance. We find conditions for this to happen, and in such a case we prove that the formal expansion is convergent after suitable resummation.
description: 40 pages, 6 figures
Agrilus thoracicus Gory & Laporte 1837
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus thoracicus

description: Agrilus thoracicus Gory & Laporte, 1837
 Agrilus thoracicus Gory & Laporte, 1837: 58.
 Material examinado: 4 exs., CHILE, Coquimbo, Zapallar, 21.X.1958 Dirings leg. ; Santiago, Pudahuel, 12.XI.1953, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 98, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Molecular picture for the $Ω(2012)$ revisited
Creators: name: Ikeno, Natsumi
name: Toledo, Genaro
name: Oset, Eulogio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We conduct a study of the interaction of the $\bar K Ξ^*$, $ηΩ$($s$-wave) and $\bar K Ξ$($d$-wave) channels within a coupled channel unitary approach where the transition potential between the $\bar K Ξ^*$ and $ηΩ$ channels is obtained from chiral Lagrangians. The transition potential between $\bar K Ξ^*$, $ηΩ$ and $\bar K Ξ$ is taken in terms of free parameters, which together with a cut off to regularize the meson-baryon loops are fitted to the $Ω(2012)$ data. We find that all data including the recent Belle experiment on $Γ_{Ω^* \to π\bar K Ξ}/ Γ_{Ω^* \to \bar K Ξ}$, are compatible with the molecular picture stemming from meson baryon interaction of these channels.
description: 19 pages, 4 figures, 4 tables
title: In Vitro Studies on AMPA Receptor-Mediated Motor Neuron Death: Relevance for Amyotrophic Lateral Sclerosis
Creators: name: De Paola, Massimiliano
Publisher: name: The Open University
Year: 2009

description: Amyotrophic Lateral Sclerosis (ALS) is a neurological disease mainly characterized by progressive motor neuron degeneration and muscle atrophy that lead to premature death. It is not yet fully understood in terms of etiology and, as a consequence, it is still orphan of cures. This project was aimed at studying some of the main reliable causal events leading to motor neuron degeneration in ALS, i.e. AMPA receptor (AMPAR)-dependent excitotoxicity, neuroinflammation and intracellular protein aggregation. 1) We investigated the intracellular mechanisms that are induced in motor neurons by AMPAR-mediated excitotoxicity, demonstrating that different death pathways were activated depending on the intensity of the initial stimulus to the receptor. Low AMPAR agonist concentrations induce, indeed, the typical intracellular events of the apoptotic pathway, while higher concentrations trigger to non-apoptotic motor neuron death. 2) We analysed the intracellular effect of mediators of the inflammatory signalling, i.e. TNF-α and IL-8, and their interaction with the AMPAR-dependent excitotoxic pathway. We demonstrated that IL-8-induced motor neuron death is specifically mediated by the CXCR2 chemokine receptor. TNF-α exerts both neurotoxicity and neuroprotection against AMPAR-mediated cell death. The presence of mature and active glial population is determinant in mediating TNF-α effect. 3) We studied the effect of intracellular α-synuclein accumulation in motor neurons, revealing a dual concentration-dependent effect since micromolar protein concentrations are neurotoxic, while nanomolar concentrations induce neuroprotective effect against oxidative stress. In light of such results, we tested the effectiveness of potentially neuroprotective drugs which could interfere with the intracellular death mechanisms of motor neurons. We found that Erythropoietin (EPO) and different non-erythropoietic EPO derivatives (CEPO, ASIALOEPO and HBP) have specific neuroprotective properties against the apoptotic AMPAR-dependent death pathway. Reparixin, an orally active chemokine receptor (CXCR1/2) inhibitor was successfully tested against the IL-8-dependent motor neuron death. All together these results add further useful information to define the complex ALS etiology and provide interesting pharmacological approaches which could be relevant for the treatment of the pathology.
Agrilus verutus Kerremans 1897
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus verutus

description: Agrilus verutus Kerremans, 1897
 Agrilus verutus Kerremans, 1897: 67.
 Material examinado: BRASIL, Minas Gerais, Catas Altas (Serra do Caraça), 1 ex., 27.XI-05.XII.1972, Expedição do Museu de Zoologia leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 99, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Investigating Taxonomic Diversity within Asteroid Families through ATLAS Dual-Band Photometry
Creators: name: Erasmus, N.
name: Navarro-Meza, S.
name: McNeill, A.
name: Trilling, D. E.
name: Sickafoose, A. A.
name: Denneau, L.
name: Flewelling, H.
name: Heinze, A.
name: Tonry, J. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present here the c-o colors for identified Flora, Vesta, Nysa-Polana, Themis, and Koronis family members within the historic data set (2015-2018) of the Asteroid Terrestrial-impact Last Alert System (ATLAS). The Themis and Koronis families are known to be relatively pure C- and S-type Bus-DeMeo taxonomic families, respectively, and the extracted color data from the ATLAS broadband c- and o-filters of these two families is used to demonstrate that the ATLAS c-o color is a sufficient parameter to distinguish between the C- and S-type taxonomies. The Vesta and Nysa-Polana families are known to display a mixture of taxonomies possibly due to Vesta's differentiated parent body origin and Nysa-Polana actually consisting of two nested families with differing taxonomies. Our data show that the Flora family also displays a large degree of taxonomic mixing and the data reveal a substantial H-magnitude dependence on color. We propose and exclude several interpretations for the observed taxonomic mix. Additionally, we extract rotation periods of all of the targets reported here and find good agreement with targets that have previously reported periods.
Phase transition in the modified fiber bundle model
Creators: name: Kim, Beom Jun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We extend the standard fiber bundle model (FBM) with the local load sharing in such a way that the conservation of the total load is relaxed when an isolated fiber is broken. In this modified FBM in one dimension (1D), it is revealed that the model exhibits a well-defined phase transition at a finite nonzero value of the load, which is in contrast to the standard 1D FBM. The modified FBM defined in the Watts-Strogatz network is also investigated, and found is the existences of two distinct transitions: one discontinuous and the other continuous. The effects of the long-range shortcuts are also discussed.
description: 7 pages, to appear in Europhys. Lett
Kostka-Foulkes polynomials and Macdonald spherical functions
Creators: name: Nelsen, Kendra
name: Ram, Arun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Generalized Hall-Littlewood polynomials (Macdonald spherical functions) and generalized Kostka-Foulkes polynomials ($q$-weight multiplicities) arise in many places in combinatorics, representation theory, geometry, and mathematical physics. This paper attempts to organize the different definitions of these objects and prove the fundamental combinatorial results from ``scratch'', in a presentation which, hopefully, will be accessible and useful for both the nonexpert and researchers currently working in this very active field. The combinatorics of the affine Hecke algebra plays a central role. The final section of this paper can be read independently of the rest of the paper. It presents, with proof, Lascoux and Schützenberger's positive formula for the Kostka-Foulkes poynomials in the type A case.
Thomas-Fermi-Poisson theory of screening for latterally confined and unconfined two-dimensional electron systems in strong magnetic fields
Creators: name: Siddiki, A.
name: Gerhardts, Rolf R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We examine within the self-consistent Thomas-Fermi-Poisson approach the low-temperature screening properties of a two-dimensional electron gas (2DEG) subjected to strong perpendicular magnetic fields. Numerical results for the unconfined 2DEG are compared with those for a simplified Hall bar geometry realized by two different confinement models. It is shown that in the strongly non-linear screening limit of zero temperature the total variation of the screened potential is related by simple analytical expressions to the amplitude of an applied harmonic modulation potential and to the strength of the magnetic field.
description: 12 pages, 12 figures
THE EFFECTS OF INCREASED EARNINGS FROM TRADITIONAL AGRICULTURE IN LEBOWA
The effects of increased earnings from traditional agriculture in Lebowa
Creators: name: Van Zyl, Johan
name: Machethe, Charles
name: Sartorius Von Bach, Helmke
name: Singini, Richard
name: Van Zyl, Johan
name: Machethe, Charles
name: Sartorius Von Bach, Helmke
name: Singini, Richard
Publisher: name: Unknown
Year: 1991
Subjects: Consumer/Household Economics
Labor and Human Capital

description: Effects of increased earnings from agriculture on consumption and investment on households in the Phokoane area of Lebowa are determined by utilising cross-sectional survey data. Income elasticities indicate that the demand for goods (staple food) produced by households increases less than the demand for purchased goods. A discriminant analysis of surplus versus deficit products indicates that surplus production is associated with farmers who participate in the Farmer Support Programme (FSP) (i.e., farmers using insecticides and purchase inputs on credit). Availability of labour, specifically female labour, also plays an important role in explaining the difference in production performance between surplus and deficit food-producing households
Field-Induced Effects of Anisotropic Magnetic Interactions in SrCu2(BO3)2
Creators: name: Kodama, K.
name: Miyahara, S.
name: Takigawa, M.
name: Horvatic, M.
name: Berthier, C.
name: Mila, F.
name: Kageyama, H.
name: Ueda, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We observed a field-induced staggered magnetization in the 2D frustrated dimer-singlet spin system SrCu2(BO3)2 by 11B NMR, from which the magnitudes of the intradimer Dzyaloshinsky-Moriya interaction and the staggered g-tensor were determined. These anisotropic interactions cause singlet-triplet mixing and eliminate a quantum phase transition at the expected critical field Hc for gap closing. They also provide a quantitative account for some puzzling phenomena such as the onset of a uniform magnetization below the and the persistence of the excitation gap above Hc. The gap was accurately determined from the activation energy of the nuclear relaxation rate.
description: 8 pages, 5 figures, published version
IMPLEMENTATION OF INCLUSIVE EDUCATION IN MADRASAH ALIYAH NEGERI 3 MEDAN
Creators: name: Dr. Suhendri, M.A.
name: Rijal Sabri, M.Ag
Publisher: name: figshare
Year: 2020
Subjects: Education

description: IMPLEMENTATION OF INCLUSIVE EDUCATION IN MADRASAH ALIYAH NEGERI 3 MEDAN
Using FEMLAB for Gravitational problems: numerical simulations for all
Creators: name: Cherubini, Christian
name: Filippi, Simonetta
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the possibility to solve Modern Numerical Relativity problems using finite element methods (FEM). Adopting a "user friendly" software for handling totally general systems of nonlinear partial differential equations, FEMLAB, we model and numerically solve in a short time a Gowdy vacuum spacetime, representing an inhomogeneous cosmology. Results agree perfectly with existing simulations in the recent literature based not of FEMs but on finite differences methods. Possible applications for non relativistic Astrophysics, General Relativity, elementary particle physics and more general theories of gravitation like EMDA and branes are discussed.
description: 6 pages, 18 eps figures, RevTeX style
Agrilus argentinus Kerremans 1903
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus argentinus

description: Agrilus argentinus Kerremans, 1903
 Agrilus argentinus Kerremans, 1903: 271.
 Material examinado: 1 ex., Cótipo.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 102, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
BUILDING A CONSENSUS ON LAND REFORM: AN INSTITUTIONAL APPROACH
Creators: name: Mbongwa, M.
name: Vink, N.
name: Mbongwa, M.
name: Vink, N.
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Land Economics/Use

description: This paper examines areas of convergence and divergence between the Government and the ANC on the land reform programme of the former. The purpose is to identify conditions required to build a consensus on land reform among major players in the country. The paper finds no fundamental non-negotiable issues between the two. It advances three conditions to build consensus. First, the Government should involve the ANC in land reform. Second, this land reform should be of an interim nature. Lastly, Black people should be the main beneficiaries of land reform. The paper ends by drawing conclusions that are relevant to all actors involved in the debate on land reform.
RRFT1 (Redox Responsive Transcription Factor 1) is involved in extracellular ATP-regulated gene expression in Arabidopsis thaliana seedlings
Creators: name: Xiaoxia Dong
name: Ruojia Zhu
name: Erfang Kang
name: Zhonglin Shang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: As an apoplast signal molecule, extracellular ATP (eATP) is involved in the growth regulation of Arabidopsis thaliana seedlings. Recently, RRFT1 was revealed to be involved in eATP- regulated seedling growth. To further verify the role of RRTF1 in seedlings' eATP response, expression of 20 eATP-responsive genes in wild type (Col-0) and RRTF1 null mutant (rrtf1-1) seedlings were investigated by using realtime quantitative PCR. After 0.5 mM ATP stimulation, the response of these genes' expression in rrtf1-1 seedlings was significantly different from that in Col-0 seedlings. Proteins which are encoded by these genes include transcription factors, plasma membrane receptors like kinases, ion influx/efflux transporters and hormone signaling components. The results indicated that RRTF1 may be involved in eATP regulated physiological responses via regulating the expression of some functional genes.
INFORMATION SYSTEMS IN DEVELOPING AGRICULTURE WITH SPECIAL REFERENCE TO PROJECT MANAGEMENT IN CISKEI
Inligtingstelsels in Onhvikkelende Landbou met besondere vemysing na projekbestuur in Ciskei.
Creators: name: De Waal, G. J.
name: Van Zyl, J.
name: De Waal, G. J.
name: Van Zyl, J.
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Research and Development/Tech Change/Emerging Technologies
Teaching/Communication/Extension/Profession

description: The purpose of this study was to establish how the fast-developing information technology could be used to assist management decision making in developing agriculture as this aspect was identified as one of the main constraints in a co-ordinated development approach. By means of a qualitative study it was established that information systems approaches were available that could be applied by management of agricultural development institutions to improve their managerial functions. In recent years, variations of the information systems approach have been developed. Each level of management has distinctive managerial requirements which should be met by these systems as the situation dictates. The critical success factor approach is highly recommended. Several caveats are identified and these should not be disregarded in the implementation of information systems. The study confirms that the innovative application of existing information system techniques, will enhance managerial decision making in developing agriculture.
A LAND RENTAL MARKET IN KWAZULU: IMPLICATIONS FOR FARMING EFFICIENCY
Creators: name: Thomson, D. N.
name: Lyne, M. C.
name: Thomson, D. N.
name: Lyne, M. C.
Publisher: name: Unknown
Year: 1991
Subjects: Farm Management
Land Economics/Use
Production Economics

description: This paper emphasises efficiency and equity aspects of a rental market in rural KwaZulu. Most households have little incentive to farm land intensively. Almost 22 per cent of arable land is unused. Evidence from a sample survey suggests that land rental is precluded by high transaction costs. Transaction costs are high because lessors consider renting to be risky as they could lose their right to land unless they farm it themselves. Nearly 70 per cent of households perceived that they would be dispossessed if they did not show some use of their arable land. Rental transactions were observed only where the risk was low, i.e. where the government or chief was lessor. Results of a discriminant analysis show that surplus farmers rent in more land, invest more in agriculture and make greater use of credit and extension services than do deficit producers. Area rented was the most important of these discriminating variables. Of those respondents renting, 84 per cent claimed they would increase production if they could access more land. Expansion of farm sizes through renting improves the incentive to farm by lowering unit production costs and by increasing potential gains, as returns to information, innovation and management are scale dependent. Equity improves because rental transactions are voluntary. Inefficient land use is the result of an inefficient land market. Solutions may be found in efforts to reduce transaction costs in the rental market.
THE EFFECTS OF LABOUR STRIKE ACTION ON A LARGE SCALE DAIRY ENTERPRISE
Creators: name: Antrobus, C. A.
name: Donkin, D. J.
name: Antrobus, C. A.
name: Donkin, D. J.
Publisher: name: Unknown
Year: 1991
Subjects: Labor and Human Capital
Livestock Production/Industries

description: Industrial labour practices in southern Africa are new to all those involved with agriculture. The impact of a strike on an on-going biological production process has far more serious long term implications than does a similar stoppage in a factory production line producing with inert (non-living) materials. On a large irrigated scheme in the Eastern Cape, which includes a pasture based dairy en• - terprise, a number of work stoppages have taken place over the past 18 months. The paper quantifies the immediate and longer term financial impacts of work stoppages. The immediate consequences of the stoppages are loss of milk sales and market share, and the longer term consequences include the cost of premature drying off, lost production due to lower lactation over the recovery period as well as the cost of missed heats and inseminations on extended inter-calving periods. The various work stoppages were undermining the scheme which led to the resultant involvement of a recognised trade union in the area, believed to be one of the first trade unions recognised in agriculture. The conditions of the trade union agreement are highlighted. In conclusion, the implications of strike action for agricultural managers, development planners, investors and trade unions are discussed.
LAND REFORM IN THE TRIBAL AREAS OF SOUTH AFRICA
Creators: name: Lyne, M. C.
name: Lyne, M. C.
Publisher: name: Unknown
Year: 1991
Subjects: Land Economics/Use
Livestock Production/Industries

description: Despite intense population pressure, arable land is often underutilised in tribal areas. Conversely, grazing resources are often overutilised. Supply response to price incentives in inelastic as the potential gains to farmers are limited by small farm sizes. A land rental market could improve efficiency in farming and also has equity advantages. Institutional changes are needed to encourage land rental. Overstocking occurs primarily because grazing land is a common property resource. Unlike most solutions to overstocking (e.g. cattle taxes and quotas), privatisation of grazing land would also improve the incentive to upgrade her and pasture quality. It is recommended that private access to grazing be encouraged in areas where it is more acceptable to households.
THE FINANCIAL PLANNING OF A FARM: A NEW DIRECTION
Creators: name: Rusch, A. B. F.
name: Van Rooyen, P. C.
name: Walton, I. A.
name: Wilsnach, R.
name: Rusch, A. B. F.
name: Van Rooyen, P. C.
name: Walton, I. A.
name: Wilsnach, R.
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural Finance
Farm Management
Financial Economics

description: The article first discusses the financial environment of the agricultural sector and then proceeds to a discussion of the credit assessment done by banks to ensure the viability of farming enterprises for lending purposes. Conclusions drawn are that farmers will have no other option but to keep better records to enable them to convince lending institutions of the viability of their enterprises.
Consumer Perceptions and Expectations of Service Quality: Assessment through SERVQUAL Dimensions
Creators: name: Tabassum Tamanna
Publisher: name: figshare
Year: 2020
Subjects: Economics

description: Service quality is very important to attract and retain customers in today's competitive business environment. Using the SERVQUAL model this research evaluates customers' expectations against their perceptions of the service quality in a private financial institute at Dhaka city of Bangladesh. To measure respondent's satisfaction level with the provided service quality of financial institutes. Fifty (50) clients were interviewed where the sample was selected non-randomly. The results showed that respondents' expectations and perception level markedly varied with the service provided by a financial institution. However, SERVQUAL tangible dimension indicated a small gap between expectation and perception level. The study concluded that level of customers' expectations on the service quality from any private financial service providers was higher than they perceived earlier. Customer services of private financial institutes should improve further through high quality services to achieve their optimum level of businesses.
Comparison of s- and d-wave gap symmetry in nonequilibrium superconductivity
Creators: name: Nicol, E. J.
name: Carbotte, J. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent application of ultrafast pump/probe optical techniques to superconductors has renewed interest in nonequilibrium superconductivity and the predictions that would be available for novel superconductors, such as the high-Tc cuprates. We have reexamined two of the classical models which have been used in the past to interpret nonequilibrium experiments with some success: the mu* model of Owen and Scalapino and the T* model of Parker. Predictions depend on pairing symmetry. For instance, the gap suppression due to excess quasiparticle density n in the mu* model, varies as n^{3/2} in d-wave as opposed to n for s-wave. Finally, we consider these models in the context of S-I-N tunneling and optical excitation experiments. While we confirm that recent pump/probe experiments in YBCO, as presently interpreted, are in conflict with d-wave pairing, we refute the further claim that they agree with s-wave.
description: 14 pages, 11 figures
title: Development of a Novel Ultra-Sensitive Immunoassay for the Detection of Prion Protein on Surgical Instruments
Creators: name: Murdoch, Heather
Publisher: name: The Open University
Year: 2008

description: The detection of the infectious agents responsible for prion diseases remains problematic. The unusual nature of this infectious agent means that it is not inactivated by standard decontamination and sterilisation processes and there is evidence of transmission through blood transfusion. There is an urgent requirement for an assay to provide reliable validation of novel decontamination processes and a sensitive test for screening of blood donations and diagnosis of patients.

This research project aimed to address these problems, by the development of a novel ultra-sensitive detection method based on a thermostable adenylate kinase (tAK) antibody label coupled to ATP-bioluminescence. Utilisation of thermostability of AK enabled inclusion of background reducing heat steps within the format therefore enabling detection of specific antigen within a background of proteins.

The thesis describes development of the methodology from initial model assay to identification and production of a suitable recombinant tAK. An attempt to produce sensitive anti-prion polyclonal antiserum is also described. Finally, the use of the monoclonal antibody 6H4 (Prionics) labelled with tAK via a cleavable linker to establish limits of detection of the assay is described and established as 15 pg.mL-1 of rec PrP using a fully optimised assay (670 fM). Sensitive detection of rec PrP within relevant biological substrates was also shown, along with some detection of infectious BSE (301V) MBH. There was also some evidence of detection on the surface of surgical grade stainless steel.

The use of this AK-ELISA is discussed within current scientific knowledge and specifically the continuing lack of available sensitive assay. The sensitivity achieved using this assay format was ultimately not sufficient to address this requirement, however the developed detection methodology has the flexibility to be coupled to new emerging technologies or disease specific antibodies, to provide an immediate increase in sensitivity in answer to this continuing need.
Temporal relaxation of gapped many-body quantum systems
Creators: name: Reimann, Peter
name: Balz, Ben N.
name: Richter, Jonas
name: Steinigeweg, Robin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Typicality of the orthogonal dynamics (TOD) is established as a generic feature of temporal relaxation processes in isolated many-body quantum systems. The basic idea in the simplest case is that the transient non-equilibrium behavior is mainly governed by the component of the time-evolved system state parallel to the initial state, while the orthogonal component appears as equilibrated right from the beginning. The main emphasis is laid on the largely unexplored and particularly challenging case that one energy level exhibits a much larger population than all the others. Important examples are gapped many-body systems at low energies, for instance due to a quantum quench. A general analytical prediction is derived and is found to compare very well with various numerically exact results.
description: 9 pages, 5 figures. Accepted for publication in Phys. Rev. B
Non-monotonic fluctuation spectra of membranes pinned or tethered discretely to a substrate
Creators: name: Merath, Rolf-Juergen
name: Seifert, Udo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The thermal fluctuation spectrum of a fluid membrane coupled harmonically to a solid support by an array of tethers is calculated. For strong tethers, this spectrum exhibits non-monotonic, anisotropic behavior with a relative maximum at a wavelength about twice the tether distance. The root mean square displacement is evaluated to estimate typical membrane displacements. Possible applications cover pillar-supported or polymer-tethered membranes.
description: 4 pages, 5 figures
On the Spectrum of Multi-Space Euclidean Random Matrices
Creators: name: Battista, Aldo
name: Monasson, Remi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the additive superimposition of an extensive number of independent Euclidean Random Matrices in the high-density regime. The resolvent is computed with techniques from free probability theory, as well as with the replica method of statistical physics of disordered systems. Results for the spectrum and eigenmodes are shown for a few applications relevant to computational neuroscience, and are corroborated by numerical simulations.
Agrilus ribeiroi Curletti & Migliore 2014, sp. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus ribeiroi

description: Agrilus ribeiroi sp. nov.
 (Fig. 12)
 Etimologia: a espécie é dedicada ao amigo Prof. Sérvio Pontes Ribeiro da Universidade Federal de Ouro Preto, que participou com os autores de diversas coletas.
Comprimento 13,3 mm. Fronte fortemente sulacada, deprimida, com três linhas verticais de pubescência amarela, pruinosa, na base, uma mais longa no centro e duas mais curtas ao longo dos olhos. Genas pequenas, estreitas, revestidas pela mesma pubescência. Antenas compridas, lobadas no quarto artículo; antenômeros distais com lobo acuminado. Carena pré-umeral inteira. Carenas marginais fortemente sinuosas, pouco distânciadas entre si e unidas anteriormente na base. Mentoneira com margem anterior incisa e com um tufo de pelos longos, vermelho-tijolo, na base. Processo prosternal com margem em formato romboidal pouco acentuada. Élitros com uma marcada “goteira” perisutural. Além da dupla de manchas pré-apicais pubescentes nota-se outras duas duplas pequenas e pouco visíveis de pontos pubescentes brancos, respectivamente antes do meio e entre 3/4 do comprimento elitral. Ápice fortemente denticulado, com um dente maior e mais acuminado no centro e um levemente menor ao longo da linha sutural. Laterotergitos com pubescência amarela. Lado ventral brônzeo; uma linha larga de pubescência amarela está presente na parte mediana do metasterno e do urosternito I; uma mancha pubescente da mesma cor nos lados basais do urosternito II. Urosternito I com dois pequenos tubérculos na parte médio-posterior. Pernas de colaração bronze; unhas anteriores bífidas. Metatarso mais longo que a metatíbia: artículo I mais longo do que II + III + IV + V. Edeago com lobo mediano e ápice arredondado, mas terminando com uma apófise acuminada. (Fig. 24).
 Material tipo: Holótipo ♂: BRASIL, São Paulo, Juquitiba (23°58’20”S, 47°01’24’’ W), 02.XI.2007, Curletti & P.L. Migliore leg., sobre Senna bijuga (Fabaceae) (MZUSP).
 Discussão: A. ribeiroi sp. nov. é muito semelhante a A. gracchus Obenberger, 1935 assinalado para o Estado de Minas Gerais (Mar de Espanha) e por nós encontrado na Parque Estadual do Rio Doce (Minas Gerais), em XI.2010. A tabela abaixo permite separar as duas espécies:
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 96, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297