cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolutionary Algorithms with Self-adjusting Asymmetric Mutation
Creators: name: Rajabi, Amirhossein
name: Witt, Carsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Evolutionary Algorithms (EAs) and other randomized search heuristics are often considered as unbiased algorithms that are invariant with respect to different transformations of the underlying search space. However, if a certain amount of domain knowledge is available the use of biased search operators in EAs becomes viable. We consider a simple (1+1) EA for binary search spaces and analyze an asymmetric mutation operator that can treat zero- and one-bits differently. This operator extends previous work by Jansen and Sudholt (ECJ 18(1), 2010) by allowing the operator asymmetry to vary according to the success rate of the algorithm. Using a self-adjusting scheme that learns an appropriate degree of asymmetry, we show improved runtime results on the class of functions OneMax$_a$ describing the number of matching bits with a fixed target $a\in\{0,1\}^n$.
description: 16 pages. An extended abstract of this paper will be published in the proceedings of PPSN 2020
Polarizability of the Nucleon and Compton Scattering
Creators: name: Schumacher, Martin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Different approaches to describe Compton scattering and the polarizability of the nucleon have been discussed up to now. We show that the most appropriate ones are provided by non-subtracted dispersion theories of the fixed-$t$ and fixed-$θ$ types, where the properties of these two versions are complementary so that advantage can be taken from both of them. In the frame of fixed-$t$ dispersion theory it was possible to precisely reproduce experimental differential cross sections obtained for the proton in a wide angular range and for energies up to 1 GeV. At energies of the first resonance region and below, precise values for the electromagnetic polarizabilities and spin-polarizabilities have been determined for the proton and the neutron. The data show that diamagnetism is a prominent property of nucleon structure, where the underlying mechanism is a $t$-channel $σ$-meson exchange. A similar mechanism is responsible for the backward spin-polarizability where the relevant meson is the $π^0$. It is a challenge for further research to integrate the $σ$ and $π^0$ intermediate states into a consistent description of the structure of the nucleon.
Монета из Рачевского клада на страницах Норвежского Нумизматического Вестника - ОГБУК «Смоленский государственный музей-заповедник»: Alexander Petrov was mentioned as a co-author of an article submitted to NNF-Nytt 2-2020
Creators: name: Petrov, Alexander
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: 210108 Historical Archaeology (incl. Industrial Archaeology)
subject: 210105 Archaeology of Europe, the Mediterranean and the Levant
subject: Archaeology
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: 13.08.2020 "Норвежский Нумизматический Вестник" №2_2020 (Осло, Норвегия) поместил статью В. Галанова, А. Михельсона и А. Петрова, посвященную недавно обнаруженной в составе Рачевского клада из собрания Смоленского музея-заповедника монете норвежского короля Олафа Святого. Монета украсила обложку издания.
Beef Versus Wheat Production in South Central North Dakota
Creators: name: Krenz, Ronald D.
name: Danielson, Bernard G.
name: Krenz, Ronald D.
name: Danielson, Bernard G.
Publisher: name: Unknown
Year: 1975
Subjects: Production Economics

description: This project was initiated to determine what potential exists in North Dakota to expand livestock production without seriously affecting crop production. Also, there was interest in determining if various types of governmental agricultural programs would be needed or even useful in encouraging livestock production. Funding for this project was provided jointly by the Economic Research Service, U.S. Department of Agriculture, and the North Dakota Agricultural Experiment Station. This report will hopefully be useful both to producers in the study area and to public policymakers concerned with the grain and livestock economy.
Exceptional collections for Grassmannians of isotropic lines
Creators: name: Kuznetsov, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We construct a full exceptional collection of vector bundles in the derived category of coherent sheaves on the Grassmannian of isotropic two-dimensional subspaces in a symplectic vector space of dimension $2n$ and in the derived category of coherent sheaves on the Grassmannian of isotropic two-dimensional subspaces in an orthogonal vector space of dimension $2n + 1$ for all $n$.
description: 26 pages; thoroughly revised - a construction of a full exceptional collection for the orthogonal isotropic Grassmannian OGR(2,2n+1) is included
Arabische Übersetzungen von Schriften des Johannes von Damaskus, herausgegeben und eingeleitet von Eva Ambros
Creators: name: Graf, Georg
name: Ambros, Eva
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 97 (2013): Oriens christianus, Band 97
Observation of cyclotron resonance and measurement of the hole mass in optimally-doped La$_{2-x}$Sr$_{x}$CuO$_4$
Creators: name: Post, K. W.
name: Legros, A.
name: Rickel, D. G.
name: Singleton, J.
name: McDonald, R. D.
name: He, Xi
name: Bozovic, I.
name: Xu, X.
name: Shi, X.
name: Armitage, N. P.
name: Crooker, S. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using time-domain terahertz spectroscopy in pulsed magnetic fields up to 31 T, we measure the terahertz optical conductivity in an optimally-doped thin film of the high temperature superconducting cuprate La$_{1.84}$Sr$_{0.16}$CuO$_4$. We observe systematic changes in the circularly-polarized complex optical conductivity that are consistent with cyclotron absorption of p-type charge carriers characterized by a cyclotron mass of $4.9\pm 0.8$ $m_{\rm e}$, and a scattering rate that increases with magnetic field. These results open the door to studies aimed at characterizing the degree to which electron-electron interactions influence carrier masses in cuprate superconductors.
description: 6 pages, 4 figures
Profile of children with listening difficulties (Magimairaj et al., 2020)
Creators: name: Beula M. Magimairaj
name: Nagaraj, Naveen K.
name: Sergeev, Alexander V.
name: Benafield, Natalie J.
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: Language
subject: Education
subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: 209999 Language, Communication and Culture not elsewhere classified
subject: FOS: Languages and literature

description: Objectives: School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas.Design: Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined.Results: In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ.Conclusions: Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children’s functional listening problems. In addition, children’s relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children’s listening challenges.
Supplemental Material S1. Correlation table for concern.
Supplemental Material S2. Correlation table for no concern.
Supplemental Material S3. Developmental questionnaire.
Magimairaj, B. M., Nagaraj, N. K., Sergeev, A. V., & Benafield, N. J. (2020). Comparison of auditory, language, memory, and attention abilities in children with and without listening difficulties. American Journal of Audiology. Advance online publication. https://doi.org/10.1044/2020_AJA-20-00018
Noncommutative Geometry and Gravity
Creators: name: Aschieri, Paolo
name: Dimitrijevic, Marija
name: Meyer, Frank
name: Wess, Julius
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study a deformation of infinitesimal diffeomorphisms of a smooth manifold. The deformation is based on a general twist. This leads to a differential geometry on a noncommutative algebra of functions whose product is a star-product. The class of noncommutative spaces studied is very rich. Non-anticommutative superspaces are also briefly considered. The differential geometry developed is covariant under deformed diffeomorphisms and it is coordinate independent. The main target of this work is the construction of Einstein's equations for gravity on noncommutative manifolds.
description: 40pages; v2: references added
Tracing change in Northwest Coast exhibit and collection catalogues, 1949-1998
Creators: name: Goudie, Tanya
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores changing perceptions, theory, structure and policy within art exhibit and collection catalogues of First Peoples' objects from the Pacific Northwest Coast. This work looks at emerging viewpoints on material culture and its display over forty years as they present themselves in catalogue entries, textual content and labeling of Native groups and individuals. Early concepts based on salvage anthropology such as Native cultural demise and the degeneration of remaining people weakened as scholarship changed from a predominantly anthropological understanding of the objects to an aesthetic understanding based in art history. Political actions by Native groups have demanded policy changes within Canadian museum structure that includes the Native voice in curatorial decisions and textual discussions on both old and new objects. These very policy changes bring with them increased responsibility for the museum as well as new challenges of representation of the objects and their makers. The theme explored in this thesis is the changing role and responsibility of academia in the representation of the Other.
The Emerging Role of E-Agribusiness - State of the Art and Perspectives in Germany
Creators: name: Doluschitz, Reiner
name: Emmel, Markus
name: Kaiser, Fabian
name: Pape, Jens
name: Roth, Michael
name: Doluschitz, Reiner
name: Emmel, Markus
name: Kaiser, Fabian
name: Pape, Jens
name: Roth, Michael
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: E-Business
subject: E-Agribusiness
subject: Technology assessment
subject: Survey
subject: Germany

description: The aim of this paper is to describe and analyse the emerging role of electronic agribusiness and the corresponding consequences in Germany. The study was carried out as a consecutive step by step procedure, including empirical surveys in farm and agribusiness small and medium size enterprises, accompanied by case studies in agribusiness firms, and a technology assessment expert survey. The results indicate that internet penetration on farm and agribusiness enterprise levels is rather high, but currently information and communication activities clearly dominate over commercial business activities. The case studies show that the internal communication changed significantly due to the implementation of internet applications like emailing, newsgroups, periodic information sheets and video-conferencing. Additionally, external communication changes according to the availability of internet features, e.g. suppliers of parts established internet networks for co-ordinated sales activities. The technology assessment expert survey indicates a gain in importance for pre- and after-sales services and communication activities by using internet technologies. Conclusions are - among others - an increasing importance of e-agribusiness and correspondingly an acceleration of structural change, but low or no expected effects on ecological parameters and on the labour market.
Entanglement-Enhanced Optical Atomic Clock
Creators: name: Pedrozo-Peñafiel, Edwin
name: Colombo, Simone
name: Shu, Chi
name: Adiyatullin, Albert F.
name: Li, Zeyang
name: Mendez, Enrique
name: Braverman, Boris
name: Kawasaki, Akio
name: Akamatsu, Daisuke
name: Xiao, Yanhong
name: Vuletić, Vladan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: State-of-the-art atomic clocks are based on the precise detection of the energy difference between two atomic levels, measured as a quantum phase accumulated in a given time interval. Optical-lattice clocks (OLCs) now operate at or near the standard quantum limit (SQL) that arises from the quantum noise associated with discrete measurement outcomes. While performance beyond the SQL has been achieved in microwave clocks and other atomic sensors by engineering quantum correlations (entanglement) between the atoms, the generation of entanglement on an optical-clock transition and operation of such a clock beyond the SQL represent major goals in quantum metrology that have never been demonstrated. Here we report creation of a many-atom entangled state on an optical transition, and demonstrate an OLC with an Allan deviation below the SQL. We report a metrological gain of $4.4^{+0.6}_{-0.4}$ dB over the SQL using an ensemble consisting of a few hundred 171Yb atoms, allowing us to reach a given stability $2.8{\pm}0.3$ times faster than the same clock operated at the SQL. Our results should be readily applicable to other systems, thus enabling further advances in timekeeping precision and accuracy. Entanglement-enhanced OLCs will have many scientific and technological applications, including precision tests of the fundamental laws of physics, geodesy, or gravitational wave detection.
description: 4 figures, 7 pages
A systematic review on FSI based flutter analysis
Creators: name: Chandrasekhar Jinendran
Publisher: name: figshare
Year: 2020
Subjects: subject: Aerospace Engineering
subject: FOS: Mechanical engineering
subject: 90101 Aerodynamics (excl. Hypersonic Aerodynamics)

description: Here a review of the existing numerical methods of FSI is made along with the implementation strategy. Also FSI implementation in SU2 is given in appendix for reference.
Farmer Entrepreneurship in New Zealand - Some Observations from Case Studies
Creators: name: Gow, Neil G.
name: Gow, Neil G.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Farm Management
subject: Marketing
subject: FOS: Economics and business
subject: Farmer entrepreneurship
subject: case studies
subject: strategic intent
subject: marketing strategies
subject: supply chain architectures
subject: chain coordination

description: 1984 was a watershed in New Zealand agriculture which led to a flowering of entrepreneurial activity by some New Zealand farmers. A change of government and a national economic crisis lead to a complete and drastic review and subsequent restructuring of the agricultural sector. Farmers were forced to recognize that they could no longer rely on government support but had to meet the market. This paper reflects on research carried out at Lincoln University that has focused on case histories of some successful farmer entrepreneurs who grew out of this era. It attempts to link the case studies involved to concepts enunciated in the academic literature, especially those of performance and opportunity gaps, strategic intent, marketing strategies and supply chain dimensions in the creation of value.
The Effects of Multiplicative Noise in Relativistic Phase Transitions
Creators: name: Antunes, Nuno D.
name: Gandra, Pedro
name: Rivers, Ray J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Effective stochastic equations for the continuous transitions of relativistic quantum fields inevitably contain multiplicative noise. We examine the effect of such noise in a numerical simulation of a temperature quench in a 1+1 dimensional scalar theory. We look at out-of-equilibrium defect formation and compare our results with those of stochastic equations with purely additive noise.
description: 6 pages, 4 figures, submitted to PRD
136. Gaia and gravitational waves
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2023

description: I describe three areas in which Gaia is contributing to the field of gravitational wave research: in helping to identify `verification binaries' for the LISA gravitational wave space mission, in searches for the electromagnetic counterparts of gravitational wave sources, and in providing constraints on the stochastic gravitational wave background.
Multipole analysis of substrate-supported dielectric nanoresonator arrays with T-matrix method
Creators: name: Czajkowski, Krzysztof M.
name: Bancerek, Maria
name: Antosiewicz, Tomasz J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Substrates, and layered media in general, are ubiquitous, affect the properties of whatever is in their vicinity, and their influence is, in an arbitrary framework, challenging to quantify analytically, especially for large arrays which escape explicit numerical treatment due to the computational burden. In this work, we develop a versatile T-matrix based framework in which we generalize the coupled multipole model towards arbitrarily high multipole orders and substrate-supported arrays. It allows us to study substrate-supported random/amorphous arrays of high index dielectric nanoparticles which are of wide interest due to relatively low losses and a highly tunable optical response, making them promising elements for nanophotonic devices. We discuss how multipole coupling rules evolve in the presence of a substrate in amorphous arrays for three interaction mechanisms: direct coupling between particles, substrate-mediated interparticle coupling and substrate-mediated self-coupling. We show the interplay between array density, distance from the substrate and its refractive in determining the optical response of an array. As an example, we use this framework to analyze refractometric sensing with substrate-supported arrays and demonstrate that the substrate plays a crucial role in determining the array sensitivity.
Investments in Energy-Saving Systems in Dutch Horticultural Farms
Creators: name: Aramyan, Lusine H.
name: Oude Lansink, Alfons G.J.M.
name: Verstegen, Jos A.A.M.
name: Aramyan, Lusine H.
name: Oude Lansink, Alfons G.J.M.
name: Verstegen, Jos A.A.M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Farm Management
subject: investments
subject: two-stage model
subject: management theory
subject: option value
subject: adjustment costs

description: In the Netherlands the greenhouse sector is a major user of energy. It accounts for 7% of the total amount of energy used in the Netherlands and for 79% of the total amount of energy used in agriculture. In order to sustain this sector on the long term, it is important that its use of energy is lowered. One way of reducing energy use for horticultural producers is investing in energy-saving systems. The purpose of this paper is to provide a better understanding of the investment behavior of farm operators. A two-stage econometric model has been applied to analyze the factors influencing the decision of farmers to invest and the level of investments.
Origin of three-body resonances
Creators: name: Garrido, E.
name: Fedorov, D. V.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We expose the relation between the properties of the three-body continuum states and their two-body subsystems. These properties refer to their bound and virtual states and resonances, all defined as poles of the $S$-matrix. For one infinitely heavy core and two non-interacting light particles, the complex energies of the three-body poles are the sum of the two two-body complex pole-energies. These generic relations are modified by center-of-mass effects which alone can produce a Borromean system. We show how the three-body states evolve in $^6$He, $^6$Li, and $^6$Be when the nucleon-nucleon interaction is continuously switched on. The schematic model is able to reproduce the main properties in their spectra. Realistic calculations for these nuclei are shown in detail for comparison. The implications of a core with non-zero spin are investigated and illustrated for $^{17}$Ne ($^{15}$O+p+p). Dimensionless units allow predictions for systems of different scales.
description: 15 pages, 7 figures
Perpetual Integral Functionals of Multidimensional Stochastic Processes
Creators: name: Kondratiev, Yuri
name: Mishura, Yuliya
name: da Silva, José L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J25, 60J65, 60G22, 47A30

description: The paper is devoted to the existence of integral functionals $\int_0^\infty f(X(t))\,{\mathrm{d}t}$ for several classes of processes in $\mathbb{R}$ with $d\ge 3$. Some examples such as Brownian motion, fractional Brownian motion, compound Poisson process, Markov processes admitting densities of transitional probabilities are considered.
description: 11 pages
Improving accuracy and speeding up Document Image Classification through parallel systems
Creators: name: Ferrando, Javier
name: Dominguez, Juan Luis
name: Torres, Jordi
name: Garcia, Raul
name: Garcia, David
name: Garrido, Daniel
name: Cortada, Jordi
name: Valero, Mateo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper presents a study showing the benefits of the EfficientNet models compared with heavier Convolutional Neural Networks (CNNs) in the Document Classification task, essential problem in the digitalization process of institutions. We show in the RVL-CDIP dataset that we can improve previous results with a much lighter model and present its transfer learning capabilities on a smaller in-domain dataset such as Tobacco3482. Moreover, we present an ensemble pipeline which is able to boost solely image input by combining image model predictions with the ones generated by BERT model on extracted text by OCR. We also show that the batch size can be effectively increased without hindering its accuracy so that the training process can be sped up by parallelizing throughout multiple GPUs, decreasing the computational time needed. Lastly, we expose the training performance differences between PyTorch and Tensorflow Deep Learning frameworks.
Magnetic field-induced spectroscopy of forbidden optical transitions with application to lattice-based optical atomic clocks
Creators: name: Taichenachev, A. V.
name: Yudin, V. I.
name: Oates, C. W.
name: Hoyt, C. W.
name: Barber, Z. W.
name: Hollberg, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We develop a method of spectroscopy that uses a weak static magnetic field to enable direct optical excitation of forbidden electric-dipole transitions that are otherwise prohibitively weak. The power of this scheme is demonstrated using the important application of optical atomic clocks based on neutral atoms confined to an optical lattice. The simple experimental implementation of this method -- a single clock laser combined with a DC magnetic field-- relaxes stringent requirements in current lattice-based clocks (e.g., magnetic field shielding and light polarization), and could therefore expedite the realization of the extraordinary performance level predicted for these clocks. We estimate that a clock using alkaline earth-like atoms such as Yb could achieve a fractional frequency uncertainty of well below 10^-17 for the metrologically preferred even isotopes.
Characterization of Animal Leather Dust Waste from the Footwear Industry
Creators: name: Thiago Moreira Flores
name: Thalis De Simas Koller
name: Souza, José De
name: Auler, Sandro Heleno
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Leather production is carried out on a large scale in Rio Grande do Sul, mainly by companies that have activities in the shoe industry. The production of footwear and leather accessories, the large scale production as leather dust, are usually discarded in industrial landfills. Such products are classified as hazardous because of the use of chromium in the tanning process. The most common form of disposal is the construction of landfills, the environmental legislation in force requires that the landings be impermeable so that they do not contaminate the soil or sheets of water. With this in mind, the present project carries out a characterization of the residues based on tests of moisture content and analysis of data of pH, leaching, solubilization, total organic material, total rocks, total mineral and enzymatic of existing samples to designate a function compatible. The results that can be recycled can be used as the aid material with building materials such as concrete, present suitable for the cultivation of ornamental plant species are mixed with the charred rice bark and vermiculite, are a good a source of recycling for cogeneration processes such as incineration and piracy can be used in tanning and retanning of hides, with great environmental benefit and cost reduction for tanning.
The structure of the Galactic bar
Creators: name: Babusiaux, C.
name: Gilmore, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a deep near-infrared wide-angle photometric analysis of the structure of the inner Galactic bar and central disk. The presence of a triaxial structure at the centre of the Galaxy is confirmed, consistent with a bar inclined at 22+/-5.5 deg from the Sun-Galactic centre line, extending to about 2.5 kpc from the Galactic centre and with a rather small axis ratio. A feature at l=-9.8 deg not aligned with this triaxiality suggests the existence of a second structure in the inner Galaxy, a double triaxiality or an inner ring. We argue that this is likely to be the signature of the end of the Galactic bar, at about 2.5-3 kpc, which is circumscribed by an inner pseudo-ring. No thick dust lane preceding the bar is detected, and a hole in the disc's dust distribution inside the bar radius is inferred.
description: 12 pages, 8 figures. Accepted for publication in MNRAS
Монета из Рачевского клада на страницах "Норвежского Нумизматического Вестника" - ОГБУК «Смоленский государственный музей-заповедник»: Alexander Petrov was mentioned as a co-author of an article submitted to NNF-Nytt 2-2020
Creators: name: Petrov, Alexander
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: 210108 Historical Archaeology (incl. Industrial Archaeology)
subject: 210105 Archaeology of Europe, the Mediterranean and the Levant
subject: Archaeology
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: 13.08.2020 "Норвежский Нумизматический Вестник" №2_2020 (Осло, Норвегия) поместил статью В. Галанова, А. Михельсона и А. Петрова, посвященную недавно обнаруженной в составе Рачевского клада из собрания Смоленского музея-заповедника монете норвежского короля Олафа Святого. Монета украсила обложку издания.
Multi-jet production in lepton-proton scattering at next-to-leading order accuracy
Creators: name: Trocsanyi, Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I summarize the theoretical and experimental status of multijet production in DIS. I present the state of the art theoretical predictions and compare those to the corresponding experimental results obtained by analysing the data collected by the H1 and ZEUS collaborations at HERA. I also show new predictions for three-jet event-shape distributions at the NLO accuracy.
description: 11 pages, 8 figures. To appear in the proceedings of the Ringberg Workshop on "New Trends in HERA Physics 2005", Ringberg Castle, Tegernsee, Germany, 2-7 October 2005
On Z-gradations of twisted loop Lie algebras of complex simple Lie algebras
Creators: name: Nirov, Kh. S.
name: Razumov, A. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We define the twisted loop Lie algebra of a finite dimensional Lie algebra $\mathfrak g$ as the Fréchet space of all twisted periodic smooth mappings from $\mathbb R$ to $\mathfrak g$. Here the Lie algebra operation is continuous. We call such Lie algebras Fréchet Lie algebras. We introduce the notion of an integrable $\mathbb Z$-gradation of a Fréchet Lie algebra, and find all inequivalent integrable $\mathbb Z$-gradations with finite dimensional grading subspaces of twisted loop Lie algebras of complex simple Lie algebras.
description: 26 pages
Helping Farmers Adjust to Policy Reforms through Demonstration Farms: Lessons from a Project in England
Creators: name: Bailey, Alison P.
name: Garforth, Chris
name: Angell, Brian
name: Scott, Tricia
name: Beedell, Jason
name: Beechener, Sam
name: Rana, Ram
name: Bailey, Alison P.
name: Garforth, Chris
name: Angell, Brian
name: Scott, Tricia
name: Beedell, Jason
name: Beechener, Sam
name: Rana, Ram
Publisher: name: Unknown
Year: 2005
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Knowledge transfer
subject: demonstration farms

description: Market pressures and policy changes have heightened interest in knowledge and technology transfer in English agriculture. A government funded project, Forward Farming (2002-2004) established three separate pilots to test different ways of using demonstration to encourage change at farm level: a network of monitor farms covering the arable and livestock sectors; farms demonstrating integration between agriculture and the local community, landscape and markets; and a web-based virtual demonstration farm for the pig sector. This paper reports the results of a government-commissioned evaluation of the project. The methodology for the evaluation is described: quantitative and qualitative methods were used to collect information from host farmers, a wide array of stakeholders and farmers who attended and those who did not attend Forward Farming events. Data were then compared with six case studies of monitor and demonstration programmes. The evaluation found that the monitor farms were successful in attracting farm businesses that already access sources of advice and information and in stimulating ideas for change. However, while there is a strong economic argument for public funding of demonstration, this does not necessarily require a permanent network of fixed farms. Funding to support demonstration activities from a wide range of providers, and to stimulate demand for them among farmers, will provide a more flexible option for the future.
Ionized Gas in the NGC 5253 Supernebula:High Spatial and Spectral Resolution Observations with the JVLA and TEXES
Creators: name: Beck, Sara C.
name: Lacy, John
name: Turner, Jean
name: Liu, Hauyu Baobab
name: Greathouse, Thomas
name: Consiglio, S. M.
name: Ho, Paul T. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The youngest, closest and most compact embedded massive star cluster known excites the supernebula in the nearby dwarf galaxy NGC 5253. It is a crucial target and test case for studying the birth and evolution of the most massive star clusters. We present observations of the ionized gas in this source with high spatial and spectral resolution. The data includes continuum images of free-free emission with ~0.15'' resolution made with the JVLA at 15, 22 and 33 GHz, and a full data cube of the [SIV]10.5 micron fine-structure emission line with ~4.5 km/s velocity resolution and 0.3'' beam, obtained with TEXES on Gemini North. We find that 1) the ionized gas extends out from the cluster in arms or jets, and 2) the ionized gas comprises two components offset both spatially and in velocity. We discuss mechanisms that may have created the observed velocity field; possibilities include large-scale jets or a subcluster falling onto the main source.
description: Accepted for publication in MNRAS, 16 June 2020
Institutional Support for Farmers of Developing Countries: Suggested Forms and Plan of Action
Creators: name: Abdou, Amin I.
name: Abdou, Amin I.
Publisher: name: Unknown
Year: 2005
Subjects: Teaching/Communication/Extension/Profession

description: Beside financial problems, farmers of developing countries commonly suffer poor technical extension and lack of perfect marketing information. Performance of supporting governmental institutions is weakened by bureaucracy and impotent organizational practices on one hand, and on the other, low profit expectations hinder participation of the private sector. In view of these respects, the study suggests a certain channel and basis of performance to provide farmers with required both production and marketing technical support and information, principally supervised by a governmental single corps, the ministry of agriculture or a relevant institution, which would be able to retrieve a substantial proportion of expenses through sharing with farmers a percent of the excess revenue over conventional pre-extension levels. The study showed that promoting extension in production and marketing in Egypt could raise farmers' revenues by a range of 22-30%, especially for highly perishable agricultural products, such as vegetables, fruits, poultry and dairy products. A master agricultural authority or organization, most likely governmental, would act as liaison between small producers and all institutions providing production and marketing services; technical support, marketing information and financial aid. Resulted production improvement, and hence farm income increase, is shared between the go-between organization and the producers. All expenses are covered as such, beside encouraging strategic crops production, as well as carrying out plans for infrastructure development.
Science Means Never Having to Say You’re Sorry? Apologies for Scientific Misconduct
Creators: name: Hesselmann, Felicitas
name: Reinhart, Martin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: scientific misconduct
subject: retractions
subject: apologies
subject: boundary work
subject: 300 Sozialwissenschaften

description: Retractions of journal articles exclude fraudulent or erroneous research from legitimate science and perform boundary work. Analyzing retractions from different disciplines and focusing on their apologetic aspects, we find that these apologies shift between openly addressing emotional, normative, and social themes and concealing them in a more scientific style of communication. Their boundary work remains highly ambivalent: They alternate between scientific and nonscientific forms of speaking, portray unstable patterns of control and coercion, and avoid drawing a boundary between legitimate and nonlegitimate science. In line with the hypothetical nature of scientific knowledge, retractions thus leave boundary making to the future.
Drivers of Risk in New Zealand Dairy Systems
Creators: name: Pinochet-Chateau, Rene
name: Shadbolt, Nicola M.
name: Holmes, Colin
name: Lopez-Villalobos, Nicolas
name: Pinochet-Chateau, Rene
name: Shadbolt, Nicola M.
name: Holmes, Colin
name: Lopez-Villalobos, Nicolas
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural Finance

description: Much research have been focused on the importance of physical parameters on the profitability of New Zealand pastoral systems, however not many efforts have been addressed from a financial perspective. As farms get bigger, the identification of the main drivers on farm economical viability becomes more important. The objective of this study was to identify important factors affecting Return on Equity (ROE) as a measure of risk in pastoral systems. A 5-years database of owner operated New Zealand dairy farms with seasonal milk supply pattern was analysed. A logistic regression model was used to examine the effects of several variables on ROE. The analysis was undertaken between farms and within seasons to account for the effect of milk payout on risk. The Debt to Asset Ratio, Operating Profit Margin and Asset Turnover Ratio were negatively correlated with risk and significant for the whole period analyzed. The Debt Servicing Capacity was positively correlated to risk and significant for the 5 years period; it was also the most dominant variable in determining the risk. The Farm Working Expense Ratio was positively correlated with risk however its significance level varied during the period analyzed. Effective Area was positive but not consistently correlated to risk. Thus improving economic efficiency and leverage (both amount of money borrowed and interest rates) are key issues to managing risk under New Zealand conditions.
International Law and Monetary Sovereignty. The Current Problems of the International Mastery of the CFA Franc and the Crisis of Sovereign Equality.
Creators: name: Nzaou-Kongo, Aubin
name: Marceleau Biankola-Biankola
Publisher: name: figshare
Year: 2020
Subjects: subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: 140203 Economic History
subject: Sociology
subject: FOS: Sociology
subject: 140210 International Economics and International Finance
subject: 140209 Industry Economics and Industrial Organisation
subject: 180116 International Law (excl. International Trade Law)
subject: FOS: Law
subject: Law
subject: 180119 Law and Society
subject: 180117 International Trade Law

description: The CFA franc and the Comorian franc are colonial francs which derive from the split, made by the monetary reform of 26 December 1945, between the metropolitan franc and the currencies used in the French colonies. As far as the CFA franc is concerned, its history is fundamentally marked by the spectre of devaluation, the spectre of countless attempts and the spectre of numerous implementations, which are a reminder that the CFA franc carries a congenital infirmity: its birth coincides with the devaluation of the metropolitan franc. The CFA franc and the Comorian franc are the two currencies of the franc zone, a group of fifteen countries that depend on three central banks: the Central Bank of West African States (BCEAO), the Central Bank of Central African States (BEAC) and the Central Bank of the Comoros (BCC). It should be specified that the monetary unit designated by the CFA franc is different depending on whether the countries are in Central or West Africa. Originally called the franc of the French colonies in Africa, the CFA franc became in 1958 the franc of the African Financial Community in West Africa, within the framework of the West African Monetary Union (WAMU), acting within the limits of the objectives of the West African Economic and Monetary Union (WAEMU); and in parallel, the franc of the African Financial Cooperation in Central Africa, within the framework of the Central African Monetary Union (CAMU), acting within the limits of the objectives of the Central African Economic and Monetary Community (CEMAC).
Energy Dependent Contrast in Atomic-Scale Spin-Polarized Scanning Tunneling Microscopy ofMn3N2(010): Experiment and First-Principles Theory
Creators: name: Yang, Rong
name: Yang, Haiqiang
name: Smith, Arthur R.
name: Dick, Alexey
name: Neugebauer, Jorg
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The technique of spin-polarized scanning tunneling microscopy is investigated for its use in determining fine details of surface magnetic structure down to the atomic scale. As a model sample, the row-wise anti-ferromagnetic Mn3N2(010) surface is studied. It is shown that the magnetic contrast in atomic-scale images is a strong function of the bias voltage around the Fermi level. Inversion of the magnetic contrast is also demonstrated. The experimental SP-STM images and height profiles are compared with simulated SP-STM images and height profiles based on spin-polarized density functional theory. The success of different tip models in reproducing the non-magnetic and magnetic STM data is explored.
description: 15 pages, 7 figures
Comparison at Dairy Farm Level of Different Policies to Decrease Nutrient Losses to Ground and Surface Waters in the Netherlands
Creators: name: Berentsen, Paul B.M.
name: Berentsen, Paul B.M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: dairy farming
subject: nutrient losses
subject: environmental policy
subject: nitrate directive
subject: cost-effectiveness

description: This paper describes and compares two governmental policies that aim to decrease nutrient losses from farming to ground and surface waters in the Netherlands. The mineral bookkeeping system (MINAS) is the first policy. It is applied in the Netherlands since 1998 and it is based on a farm gate balance approach. This national policy was definitely rejected on October 2, 2003 by the EU Court of Justice as it was considered not to comply fully with the EU Nitrate Directive. Consequently, the Netherlands developed the Application Standards Policy (ASP) based on a soil balance approach which will replace MINAS starting 2006. Especially for dairy farming, that combines plant and animal production, nutrient input and output at soil level are hard to determine as nutrient input via manure and nutrient output via grass and forage is not measured. ASP, therefore, works with standards leaving less incentives for individual farmers to improve their nutrient use efficiency through farm management. Comparison of the policies by means of modeling at farm level shows partial removal of manure and replacement of the nutrients in this manure by fertilizer for an intensive dairy farm when changing from MINAS to ASP. This leads to a decreased cost-effectiveness as nutrient losses remain roughly the same while the farm income decreases substantially. Also the income of an extensive dairy farm decreases, but there nutrient losses also decrease. The value of this last decrease is questionable, however, as the nutrient surpluses on the extensive farm are below the surpluses that are considered acceptable given the buffering capacity of the environment. The partial removal of manure from intensive farms will definitely lead to problems on the manure market in the Netherlands as it is already difficult in the current situation to place all the surplus manure in a responsible way on arable farms.
Measurement of B(D+ -> mu+ nu) and the pseudoscalar decay constant f_D at CLEO
Creators: name: Danko, Istvan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The analysis of 60 1/pb data collected on the psi(3770) resonance with the CLEO-c detector has produced the first statistically significant signal for D+ -> mu+ nu decay and led to the measurement of the decay branching fraction B(D+ -> mu+ nu) = (3.5 +- 1.4 +- 0.6) x 10-4 and the pseudoscalar decay constant f_D = (202 +- 41 +- 17) MeV.
description: Talk presented at the 1st Meeting of the APS Topical Group on Hadronic Physics (Fermilab, Oct. 24-26, 2004). LaTeX 4 pages, 2 figures
The MUSE Hubble Ultra Deep Field Survey. XV. The mean rest-UV spectra of Ly-alpha emitters at z>3
Creators: name: Feltre, Anna
name: Maseda, Michael V.
name: Bacon, Roland
name: Pradeep, Jayadev
name: Leclercq, Floriane
name: Kusakabe, Haruka
name: Wisotzki, Lutz
name: Hashimoto, Takuya
name: Schmidt, Kasper B.
name: Blaizot, Jeremy
name: Brinchmann, Jarle
name: Boogaard, Leindert
name: Cantalupo, Sebastiano
name: Carton, David
name: Inami, Hanae
name: Kollatschny, Wolfram
name: Marino, Raffaella A.
name: Matthee, Jorryt
name: Nanayakkara, Themiya
name: Richard, Johan
name: Schaye, Joop
name: Tresse, Laurence
name: Urrutia, Tanya
name: Verhamme, Anne
name: Weilbacher, Peter M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the ultraviolet (UV) spectral properties of faint Lyman-$α$ emitters (LAEs) in the redshift range 2.93. We compute various averaged spectra of LAEs sub-sampled on the basis of their observational (e.g., Ly$α$ strength, UV magnitude and spectral slope) and physical (e.g., stellar mass and star-formation rate) properties. We search for UV spectral features other than Ly$α$, such as higher-ionization nebular emission lines and absorption features. We successfully observe the OIII]1666 and CIII]909 collisionally excited emission lines and the HeII1640 recombination feature, as well as the resonant CIV1550 doublet either in emission or P-Cygni. We compare the observed spectral properties of the different mean spectra and find the emission lines to vary with the observational and physical properties of the LAEs. In particular, the mean spectra of LAEs with larger Ly$α$ equivalent widths, fainter UV magnitudes, bluer UV spectral slopes and lower stellar masses show the strongest nebular emission. The line ratios of these lines are similar to those measured in the spectra of local metal-poor galaxies, while their equivalent widths are weaker compared to the handful of extreme values detected in individual spectra of z>2 galaxies. This suggests that weak UV features are likely ubiquitous in high z, low-mass and faint LAEs. We publicly release the stacked spectra as they can serve as empirical templates for the design of future observations, such as those with the James Webb Space Telescope and the Extremely Large Telescope.
description: 26 pages, 18 figures. Accepted for publication in A&A