cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Appendix 2 from Phylogenomics indicates Amazonia as the major source of Neotropical swarm-founding social wasp diversity
Creators: name: Rodolpho S. T. Menezes
name: Lloyd, Michael W.
name: Brady, Seán G.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy
subject: 60408 Genomics

description: Supplementary methods and references.
Updating inflation expectations
Creators: name: Lamla, Michael J.
name: Sarferaz, Samad
Publisher: name: ETH Zurich
Year: 2012
Subjects: subject: ECONOMETRICS AND ECONOMETRIC MODELS (OPERATIONS RESEARCH)
subject: Bayesian methods
subject: WIRTSCHAFTSPROGNOSEN
subject: ÖKONOMETRIE UND ÖKONOMETRISCHE MODELLE (OPERATIONS RESEARCH)
subject: MAKROÖKONOMISCHE MODELLE (OPERATIONS RESEARCH)
subject: Stochastic volatility
subject: INFLATION
subject: Disagreement
subject: Time-varying parameters
subject: MACROECONOMIC MODELS (OPERATIONS RESEARCH)
subject: ECONOMIC FORECASTS
subject: Media coverage
subject: Inflation expectation formation
subject: info:eu-repo/classification/ddc/510
subject: info:eu-repo/classification/ddc/330
subject: Mathematics
subject: FOS: Mathematics
subject: Economics

description: KOF Working Papers, 301
Discretisation effects and the influence of walking speed in cellular automata models for pedestrian dynamics
Creators: name: Kirchner, Ansgar
name: Kluepfel, Hubert
name: Nishinari, Katsuhiro
name: Schadschneider, Andreas
name: Schreckenberg, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study discretisation effects in cellular automata models for pedestrian dynamics by reducing the cell size. Then a particle occupies more than one cell which leads to subtle effects in the dynamics, e.g. non-local conflict situations. Results from computer simulations of the floor field model are compared with empirical findings. Furthermore the influence of increasing the maximal walking speed $v_{\rm max}$ is investigated by increasing the interaction range beyond nearest neighbour interactions. The extension of the model to $v_{\rm max}>1$ turns out to be a severe challenge which can be solved in different ways. Four major variants are discussed that take into account different dynamical aspects. The variation of $v_{\rm max}$ has strong influence on the shape of the flow-density relation. We show that walking speeds $v_{\rm max}>1$ lead to results which are in very good agreement with empirical data.
description: 22 pages, 15 figures, to appear in J. Stat. Mech.: Theor. Exp
Statistical Analysis of Extra-galactic Rotation Measures
Creators: name: Johnston-Hollitt, M.
name: Hollitt, C. P.
name: Ekers, R. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed a statistical analysis of a sample of 1100 extra-galactic rotation measures (RMs) obtained from the literature. Using a subsample of approximately 800 reliable RMs we compute a rotation measure sky and determine reliable large scale features for the line of sight Galactic magnetic field. We find that the influence of the Milky Way can be seen up to roughly 30 degrees on either side of the Galactic plane. Furthermore we observe an excess of RM on spatial scales between 30 degrees and 50 degrees in the region of the Galactic Plane. Additionally, the support for a bisymmetric spiral Galactic magnetic field is significantly reduced in our analysis.
description: 6 pages, 3 figures
¿SEGURIDAD E HIGIENE PARA EL TRABAJADOR AGRÍCOLA? ESCENARIO EN LOS CAMPOS TOMATEROS DE LA MESETA COMITECA
Creators: name: Gómez Carreto, Tlillalcapatl
name: López Cortez, Jesús Esperanza
name: Mena Cruz, Rosa Carmina
name: Moreno Vidal, Rocío
name: Gómez Carreto, Tlillalcapatl
name: López Cortez, Jesús Esperanza
name: Mena Cruz, Rosa Carmina
name: Moreno Vidal, Rocío
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: care
subject: health
subject: diseases
subject: agricultural
subject: tomato
subject: comiteca plateau.

description: This paper´s primary objective is to contribute to the discussions and reflections about care and health of agricultural workers. There are contexts in the Mexican countryside where those subjects are not considered in a fair dimension. Aspects of health and safety to protect the life and good health conditions of those who carry out their task of cultivating and marketing products from the field are frequently ignored. A widespread notion on the subject is that work in precarious conditions is normal and that exposure to risks is also normal. A fall, aspiration of agrochemicals, improper storage of products, use of buckets instead of stairs for pruning and other activities, are seen as part of the everyday life of the environment linked to agricultural work. Land, water and wind are elements and natural resources that are essential to achieve productive cycles but which in turn can become hazards and creators of dangers. There is a number of legal regulatory frameworks that give rise to standards implementation schemes in order to prevent diseases, loss of capacities and in an extreme case, death. Without any doubt there are places in Mexico where it is possible to apply, perhaps largely, the set of rules suggested in relation to the subject. However, in a greater proportion, it is possible to be aware of the contradictions that reality presents. A large part of the field workers do not have minimum notions of the dangers presented by several of the activities carried out and this work presents some considerations on agricultural work in the main producing region of tomato in Chiapas: the Comiteca Plateau.
Table S1. PRISMA Flowchart; Bibliography included in the meta-analysis; Description of biogeographic realms; Publication bias tests;Location of the study sites from Global determinants of prey naiveté to exotic predators
Creators: name: Anton, Andrea
name: Geraldi, Nathan R.
name: Ricciardi, Anthony
name: Dick, Jaimie T. A.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Flowchart for the publication selection process based on PRISMA (Preferred Reporting Items for Meta-Analyses) guidelines. Diagram showing the selection process followed to include publications in the meta-analysis. Chart format is based on [1]. Search terms for Web of Science search shown.;Information of the 40 studies included in the meta-analysis to investigate determinants of prey naiveté. In parentheses, number of experiments (first) and number of observations (second) from the study that were included in the meta-analysis;Table with the biogeographic realms used in this meta-analysis;Regression tests for sensitivity analyses associated to Figure 1. Treatments with ≤10 replicates were not included in the analyses and are indicated with NA.;Global map of the location of the study sites (n = 47) included in the database and used in the meta-analysis. The histogram of the latitudinal distribution of these study sites is shown in the right plot.
UNIDADES REPRESENTATIVAS DE PRODUCCIÓN BOVINA Y PORCINA. PANORAMA ECONÓMICO 2009-2014. ESTADO DE GUANAJUATO.
Creators: name: Sagarnaga Villegas, Leticia Myriam
name: Salas González, José María
name: Leos Rodríguez, Juan Antonio
name: Gómez González, Gerardo
name: Vera Villagran, María Elena
name: Sagarnaga Villegas, Leticia Myriam
name: Salas González, José María
name: Leos Rodríguez, Juan Antonio
name: Gómez González, Gerardo
name: Vera Villagran, María Elena
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: economic viability
subject: financial viability
subject: profitability
subject: production cost
subject: livestock.

description: The main goal of this analysis is to evaluate the economic viability of Representative beef and hog Farms (URP) in the Mexican State of Guanajuato, in order to support a differentiated agricultural policy enhancing process and to boost the development of the livestock sector in this Mexican state. Ten URP were located in different regions within the state and modeled under the 2009 settings, overall, under actual representative technologies and productive systems. A panel farm process was applied to obtain the information required to the financial analysis for each URP. With the information obtained from the panel discussion, the historical risk (yields) reported by farmers, the projection prices calculated by FAPRI/SAGARPA/UACh 2010 and FAPRI 2011, and under the current support programs, different scenarios for economic viability were modeled. Economic key variables were chosen for the financial analysis (2009) such as production cost and net income. For the economic analysis (2010-2014) the variables were: cash net income, ending cash reserves, nominal net worth, real net worth, economic viability, probability of negative ending cash reserves and probability of real net worth loosing. The financial and economic variables were estimated through the econometric program MexSim©. The results for the basis year analysis (2009) showed that only four URP had positive net income. Most of beef livestock URP frequently had profitability problems. Hog URP rarely had this kind of problem. Transfers are not a key determinant of profitability. In the medium run (2010-2014), only seven URP are economically viable, most of them are hog farms. Three URP need governmental support to continue working. These results might be useful to design specific policies and tools for each kind of producer.
Effects of scattering, temperature gradients, and settling on the derived dust properties of observed protoplanetary disks
Creators: name: Sierra, Anibal
name: Lizano, Susana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is known that the millimeter dust thermal emission of protoplanetary disks is affected by scattering, such that for optically thick disks the emission decreases with respect to the pure absorption case and the spectral indices can reach values below 2. The latter can also be obtained with temperature gradients. Using simple analytical models of radiative transfer in thin slabs, we quantify the effect of scattering, vertical temperature gradients, and dust settling on the emission and spectral indices of geometrically thin face-on accretion disks around young stars. We find that in vertically isothermal disks with large albedo ($ω_ν \gtrsim 0.6$), the emergent intensity can increase at optical depths between $10^{-2}$ and $10^{-1}$. We show that dust settling has important effects on the spectral indices in the optically thick regime, since the disk emission mainly traces small dust grains in the upper layers of the disk. The $λ= 870 \ μ$m emission of these small grains can hide large grains at the disk mid plane when the dust surface density is larger than $\sim$ 3.21 g cm$^{-2}$. Finally, because of the change of the shape of the spectral energy distribution, optically thick disks at 1.3 mm and grains with sizes between 300 $μ$m $< a_{\rm max}
Keeping a Finger on the Pulse of the Economy: Nowcasting Swiss GDP in Real-Time Squared
Creators: name: Siliverstovs, Boriss
Publisher: name: ETH Zurich
Year: 2012
Subjects: subject: FORECASTING BASED ON STATISTICS (MATHEMATICAL STATISTICS)
subject: ECONOMETRICS AND ECONOMETRIC MODELS (OPERATIONS RESEARCH)
subject: Real-time data
subject: SCHWEIZ (MITTELEUROPA). SCHWEIZERISCHE EIDGENOSSENSCHAFT
subject: SWITZERLAND (CENTRAL EUROPE). SWISS CONFEDERATION
subject: ÖKONOMETRIE UND ÖKONOMETRISCHE MODELLE (OPERATIONS RESEARCH)
subject: ECONOMIC DEVELOPMENT
subject: Dynamic factor model
subject: PROGNOSEN AUF STATISTISCHER BASIS (MATHEMATISCHE STATISTIK)
subject: Forecasting
subject: WIRTSCHAFTSENTWICKLUNG
subject: Business tendency surveys
subject: Nowcasting
subject: info:eu-repo/classification/ddc/330
subject: info:eu-repo/classification/ddc/510
subject: Economics
subject: Mathematics
subject: FOS: Mathematics

description: KOF Working Papers, 302
Exploring the effectiveness of a COVID-19 contact tracing app using an agent-based model
Creators: name: Almagor, Jonatan
name: Picascia, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Multiagent Systems (cs.MA)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: A contact-tracing strategy has been deemed necessary to contain the spread of COVID-19 following the relaxation of lockdown measures. Using an agent-based model, we explore one of the technology-based strategies proposed, a contact-tracing smartphone app. The model simulates the spread of COVID-19 in a population of agents on an urban scale. Agents are heterogeneous in their characteristics and are linked in a multi-layered network representing the social structure - including households, friendships, employment and schools. We explore the interplay of various adoption rates of the contact-tracing app, different levels of testing capacity, and behavioural factors to assess the impact on the epidemic. Results suggest that a contact tracing app can contribute substantially to reducing infection rates in the population when accompanied by a sufficient testing capacity or when the testing policy prioritises symptomatic cases. As user rate increases, prevalence of infection decreases. With that, when symptomatic cases are not prioritised for testing, a high rate of app users can generate an extensive increase in the demand for testing, which, if not met with adequate supply, may render the app counterproductive. This points to the crucial role of an efficient testing policy and the necessity to upscale testing capacity.
Charmed quark component of the photon wave function
Creators: name: Anisovich, V. V.
name: Dakhno, L. G.
name: Markov, V. N.
name: Nikonov, V. A.
name: Sarantsev, A. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the c-anti-c component of the photon wave function on the basis of (i) the data on the transitions e+ e- -> J/psi(3096), psi(3686), psi(4040), psi(4415), (ii) partial widths of the two-photon decays eta_{c0}(2979), chi_{c0}(3415), chi_{c2}(3556) -> gamma-gamma, and (iii) wave functions of the charmonium states obtained by solving the Bethe-Salpeter equation for the c-anti-c system. Using the obtained c-anti-c component of the photon wave function we calculate the gamma-gamma decay partial widths for radial excitation 2S state, eta_{c0}(3594) -> gamma-gamma, and 2P states chi_{c0}(3849), chi_{c2}(3950) -> gamma-gamma.
description: 20 pages, 8 figures
Do Budgetary Institutions Mitigate the Common Pool Problem?: New Empirical Evidence for the EU
Creators: name: de Haan, Jakob
name: Jong-A-Pin, Richard
name: Mierau, Jochen O.
Publisher: name: ETH Zurich
Year: 2012
Subjects: REGION OF THE EUROPEAN UNION
Size fragmentation
POLITICAL INFLUENCE (INTERNAL POLITICS)
ÖFFENTLICHE HAUSHALTE (ÖFFENTLICHE FINANZEN)
POLITISCHE EINFLUSSNAHME (INNENPOLITIK)
Political fragmentation
REGION DER EUROPÄISCHEN UNION
PUBLIC BUDGETS (PUBLIC FINANCE)
Budgetary institutions
Fiscal policy
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 303
Puzzling behavior of hydrated YBCO
Creators: name: Fetisov, A. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the influence of a close-lying non-magnetic and non-charged metal disk on the hydration reaction of YBa2Cu3O6+d (YBCO). It has been established, that at a distance in the range of 6 - 7 mm from the disk surface, the rate of the hydration is significantly reduced relative to distances out of this interval. This effect has allowed us to assume that there is an interaction between YBCO and the disk the nature of which is still unknown. Further direct measurements of the force acting between these bodies have been performed. A recorded repulsive interaction with a magnitude of 6.5*10-6 N, which is 0.04% of the sample weight, has confirmed our assumption.
description: 13 pages, 9 figures, 2 tables
Quantum fluctuations of a vortex in a dilute Bose-Einstein condensate
Creators: name: Dziarmaga, Jacek
name: Meisner, Jakub
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A vortex in a quasi two-dimensional Bose-Einstein condensate is subject to the Magnus force and can be effectively described as a planar particle in a uniform magnetic field. Quantization of this effective particle leads to the lowest Landau level where the most localized wave function is a gaussian. In this gaussian state vortex position seems to fluctuate with an average magnitude set by the magnetic width of the gaussian. We readdress this problem using the number-conserving version of the Bogoliubov theory. We find that the Bogoliubov mode that might be interpreted as a fluctuation of vortex position actually does not contribute to position fluctuation at all. The only non-zero contribution comes from phonons but it is an order of magnitude less than the simple estimate, based on the magnetic width of the effective gaussian wave packet.
description: 5 pages, 2 figures
Electrical Access to Ising Anyons in Kitaev Spin Liquids
Creators: name: Pereira, Rodrigo G.
name: Egger, Reinhold
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that spin-spin correlations in a non-Abelian Kitaev spin liquid are associated with a characteristic inhomogeneous charge density distribution in the vicinity of $\mathbb{Z}_2$ vortices. This density profile and the corresponding local electric fields are observable, e.g., by means of surface probe techniques. Conversely, by applying bias voltages to several probe tips, one can stabilize Ising anyons ($\mathbb{Z}_2$ vortices harboring a Majorana zero mode) at designated positions, where we predict a clear Majorana signature in energy absorption spectroscopy.
description: 14 pages, 5 figures
Scattering of High Speed Particles in the Kerr Gravitational Field
Creators: name: Barrabès, C.
name: Hogan, P. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the angles of deflection of high speed particles projected in an arbitrary direction into the Kerr gravitational field. This is done by first calculating the light-like boost of the Kerr gravitational field in an arbitrary direction and then using this boosted gravitational field as an approximation to the gravitational field experienced by a high speed particle. In the rest frame of the Kerr source the angles of deflection experienced by the high speed test particle can then easily be evaluated.
description: 10 pages, Latex file, accepted for publication in Phys. Rev. D
ANÁLISIS DE INVERSIÓN PARA LA PRODUCCIÓN DE OVINOS EN EL MUNICIPIO DE TZUCACAB, YUCATAN, MÉXICO
Creators: name: Hernández Cortázar, Ivonne
name: Rejón Ávila, Manuel
name: Valencia Heredia, Eduardo
name: Araujo Andrade, Luis Alberto
name: Hernández Cortázar, Ivonne
name: Rejón Ávila, Manuel
name: Valencia Heredia, Eduardo
name: Araujo Andrade, Luis Alberto
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: production of sheep
subject: investment project
subject: profitability

description: A study of investment was done with the goal of knowing the possibilities to establish a sheep unit production at the village of Tzucacab, Yucatán. Based on information collected by the technical and market research, a financial analysis was prepared using the technique of fixed investment budgets, revenues, expenses and cash flow, which served to determine the return on investment through the net present value (NPV) and internal rate of return (IRR), as well as the point of comparison of financial indicators, with the purpose of accept or reject the project, which is estimating the minimal acceptable rate of return (MARR). The results were as follows, an NPV of $50,134.00 Mexican pesos and an IRR of 21%, and a MARR of 12%. We conclude that these results were satisfactory for the project, since, the NPV has an amount greater than zero and the IRR was higher than the rate of cost of capital
Determinants of equity-based and co-operative foreign R&D and impact on the parent firm’s performance: A comparative firm-level analysis for Switzerland and Austria
Creators: name: Berger, Martin
name: Hollenstein, Heinz
Publisher: name: ETH Zurich
Year: 2012
Subjects: GLOBALISIERUNG (WIRTSCHAFT)
International R&D cooperation
OLI paradigm and R&D
MULTINATIONALE UNTERNEHMEN + KONZERNE
Foreign R&D and performance
Internationalisation of R&D
BUSINESS EFFICIENCY
FORSCHUNG UND ENTWICKLUNG
RESEARCH AND DEVELOPMENT
GLOBALIZATION (ECONOMY)
BETRIEBSEFFIZIENZ
Governance of foreign R&D
MULTINATIONAL CORPORATIONS + CORPORATE GROUP
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 305
The R-word Index for Switzerland
Creators: name: Iselin, David
name: Siliverstovs, Boriss
Publisher: name: ETH Zurich
Year: 2012
Subjects: Real-time data
GROSS NATIONAL PRODUCT
ECONOMETRICS AND ECONOMETRIC MODELS (OPERATIONS RESEARCH)
REZESSION (WIRTSCHAFT, GELD UND WÄHRUNG)
Nowcasting
Switzerland
FORECASTING BASED ON STATISTICS (MATHEMATICAL STATISTICS)
BRUTTONATIONALEINKOMMEN
SCHWEIZ (MITTELEUROPA). SCHWEIZERISCHE EIDGENOSSENSCHAFT
RECESSION (ECONOMY, MONEY AND CURRENCY)
SWITZERLAND (CENTRAL EUROPE). SWISS CONFEDERATION
ÖKONOMETRIE UND ÖKONOMETRISCHE MODELLE (OPERATIONS RESEARCH)
PROGNOSEN AUF STATISTISCHER BASIS (MATHEMATISCHE STATISTIK)
ECONOMIC GROWTH
WIRTSCHAFTSWACHSTUM
Recession
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 304
Nonlinear terahertz electro-optical responses in centrosymmetric electronic systems
Creators: name: Paul, I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent developments in terahertz spectroscopy using pump-probe setups to study correlated electronic materials, we review the field theoretical formalism to compute finite frequency nonlinear electro-optical responses in centrosymmetric systems starting from basic time dependent perturbation theory. We express the nonlinear current kernel as a sum of several causal response functions. These causal functions cannot be evaluated using perturbative field theory methods, since they are not contour ordered. Consequently, we associate each response function with a corresponding imaginary time ordered current correlation function, since the latter can be factorized using Wick's theorem. The mapping between the response functions and the correlation functions, suitably analytically continued to real frequencies, is proven exactly. We derive constraints satisfied by the nonlinear current kernel and we prove a generalized $f$-sum rule for the nonlinear conductivity, all of which are consequences of particle number conservation. The constraints guarantee that the nonlinear static responses are free from spurious divergences. We apply the theory to compute the gauge invariant nonlinear conductivity of a system of noninteracting electrons in the presence of weak disorder. As special cases of this generalized nonlinear response, we discuss its third harmonic and its instantaneous terahertz Kerr signals. The formalism can be used to compute the nonlinear conductivity in symmetry broken phases of electronic systems such as superconductors, density waves and nematic states.
description: 25 pages, 4 figures
Regional interest rate pass-through in Italy
Creators: name: Montagnoli, Alberto
name: Napolitano, Oreste
name: Siliverstovs, Boriss
Publisher: name: ETH Zurich
Year: 2012
Subjects: ITALIEN (SÜDEUROPA). REPUBLIK ITALIEN
Error correction model
BANKEN + BANKWESEN
MONETARY POLICY
ZINSSATZ
BANKS + BANKING
Interest rates pass-through
INTEREST RATE
ITALY (SOUTH EUROPE). REPUBLIC OF ITALY
GELDPOLITIK
Monetary policy
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 308
title: Particlelike states in D-shaped fibers
Creators: name: Kühmayer, Matthias
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Optische Fasern
subject: Wellenchaos
subject: Wellenfokussierung
subject: optical fibers
subject: wave chaos
subject: wavefront shaping

description: In this thesis we investigate the classical (particle) and wave dynamics in a three-dimensional fiber with a D-shaped cross section. Dependent on the placement of the cut the system shows regular, completely chaotic or mixed classical dynamics. Here, we are mainly interested in the latter two cases in which chaos can counteract the formation of so-called particlelike states, which are highly collimated beams. Regarding the classical dynamics we use Monte-Carlo methods to generate trajectory bundles that mimic initial wavefronts in order to achieve the best agreement with our wave simulations. In the framework of the Helmholtz equation, our search for particlelike wave states is focused on finding a new operator constructed from the transmission matrix which contains states with the desired beam-like behavior among its eigenstates. These states remain highly collimated rather than showing a fan-like spreading along their propagation through the system. The behavior of these wave states will be investigated in the spatial domain as well as in classical phase space by means of Husimi distributions, where we will also make a comparison with the results obtained by classical trajectory-bundle simulations.
VARIABLES QUE IMPACTAN EN LA COMPETITIVIDAD DE LAS MICRO, PEQUEÑAS Y MEDIANAS EMPRESAS AGROINDUSTRIALES DE LIMÓN EN TECOMÀN, COLIMA, MÉXICO
Creators: name: Magaña Sánchez, Pablo Adrián
name: Magaña Sánchez, Pablo Adrián
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Micro
subject: Small and Medium enterprises
subject: Competitiveness
subject: Lemon Agribusiness

description: This article refers to an investigation related to variables that affect the competitiveness of Micro, Small and Medium Mexican Lemon Agribusiness Enterprises in Tecomàn, Colima, Mexico, and also their place in competitiveness in relation to others. It was drawn up a data collection instrument using, as a theoretical framework, the studies by the World Competitiveness Yearbook supported by the International Management Development (IMD) which uses four variables to determine the level of competitiveness: economic performance, government efficiency the business efficiency and infrastructure.
Structural Change, Aggregate Demand and Employment Dynamics in the OECD, 1970– 2010
Creators: name: Hartwig, Jochen
Publisher: name: ETH Zurich
Year: 2013
Subjects: LABOUR MARKET AND EMPLOYMENT
Productivity growth
OCDE
Employment dynamics
ARBEITSMARKT UND BESCHÄFTIGUNG
OECD
Demand growth
WIRTSCHAFTSSTRUKTURÄNDERUNGEN (WIRTSCHAFTSWISSENSCHAFTEN)
OECD panel data
Structural change
ECONOMIC STRUCTURAL CHANGES (ECONOMICS)
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 343
LA SUSTENTABILIDAD AGRÍCOLA DE LAS CHINAMPAS EN EL VALLE DE MÉXICO: CASO XOCHIMILCO
Creators: name: González Carmona, Emma
name: Torres Valladares, Cynthia Itzel
name: González Carmona, Emma
name: Torres Valladares, Cynthia Itzel
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Sustainability
subject: chinampa
subject: FODA

description: The aim of this investigation is to show the sustainability features of the chinampa practice in the Valley of Mexico: Xochimilco, applying a FODA diagnosis in order to reveal the environmental transcendence of this particular agricultural model. It is possible to determine that the development of the chinampa has basically two components: the native and social. The first one constitutes the local ecosystem composed by shallow water lakes that are included in a great surface across the valley of Mexico. The second one concerns to the social aspect; which is how the work gets organized, the cultural practices and the implementation of methods and agricultural technologies that are the result of the thousand-year-old wisdom of the autochthonous groups of the chinampa zone. Which has helped to support the integration of the members of the family, as well as providing self-employment and a self sustained source of food, these features show that this system of agricultural production is sustainable in the environmental, social and economic aspects. Nevertheless the chinampa production is affected by diverse aspects as the development of modern agriculture technologies, the urban growth and pollution of the water.
DESARROLLO SUSTENTABLE EN VILLA SOLA DE VEGA, OAXACA
Creators: name: Ramos Sánchez, Otoniel Jairzhinio
name: Reyes Morales, Rafael G
name: Ramos Sánchez, Arelí Orquídea
name: Ramos Sánchez, Otoniel Jairzhinio
name: Reyes Morales, Rafael G
name: Ramos Sánchez, Arelí Orquídea
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: sustainable development
subject: government
subject: income
subject: poverty
subject: pollution.

description: The paper aims to consider sustainable development in Villa Sola de Vega and agencies. From the theoretical review highlights three perspectives, the Brundtland which is located in the current neo-liberal, ecological economics and agroecology. The neoliberal places greater emphasis on the economic area, where natural resources are considered as natural capital which have a direct influence on the lives of the population. In ecological economics the main objective is the balance of the environment. And in agroecology, environmental balance also highlights the social participation in the conservation of local species. Quantitative data were obtained by the implementation of household surveys considering the economic area all family income. In the social area, years of study, housing conditions, the situation of migration. In the environmental area fuelwood consumption, location of the maguey, pollution. We present the results sorted according to three theoretical perspectives reviewed: the neo-liberal, ecological economics and agroecology. The results showed that there is little dynamic local economy. Socially, the houses are of traditional materials in greater proportion, and with fewer long-term solid materials, and the presence of sewer services. With regard to natural resources are considered low-cost fuel to supplement the family budget and with little impact to create permanent jobs that generate financial resources, improve the living conditions of households and prevent migration.
Controlling the propagation of dipole-exchange spin waves using local inhomogeneity of the anisotropy
Creators: name: Mohseni, Morteza
name: Hillebrands, Burkard
name: Pirro, Philipp
name: Kostylev, Mikhail
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Spin waves are promising candidates to carry, transport, and process information. Controlling the propagation characteristics of spin waves in magnetic materials is an essential ingredient for designing spin-wave based computing architectures. Here, we study the influence of surface inhomogeneities on the spin-wave signals transmitted through thin films. We use micromagnetic simulations to study the spin-wave dynamics in an in-plane magnetized yttrium iron garnet thin film with a thickness in the nanometre range in the presence of surface defects in the form of locally introduced uniaxial anisotropies. These defects are used to demonstrate that the Backward Volume Magnetostatic Spin Waves (BVMSW) are more responsive to backscattering in comparison to Magnetostatic Surface Spin Waves (MSSWs). For this particular defect type, the reason for this behavior can be quantitatively related to the difference in the magnon band structures for the two types of spin waves. To demonstrate this, we develop a quasi-analytical theory for the scattering process. It shows an excellent agreement with the micromagnetic simulations, sheds light on the backscattering processes and provides a new way to analyze the spin-wave transmission rates in the presence of surface inhomogeneities in sufficiently thin films, for which the role of exchange energy in the spin-wave dynamics is significant. Our study paves the way to designing magnonic logic devices for data processing which rely on a designed control of the spin-wave transmission.
description: 6 Figures, 21 pages
Figures S1 and S2; Tables S1 and S2 from Loss of hypoxia-inducible factor 1α affects hypoxia tolerance in larval and adult zebrafish (Danio rerio)
Creators: name: Mandic, Milica
name: Best, Carol
name: Perry, Steve F.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology

description: Figure S1. O2 consumption (ṀO2) across a range of water PO2 in wild-type (A), Hif1aa-/- (B), Hif1ab-/- (C) and Hif1aa-/-ab-/- (D) 7 day post fertilization (dpf) larvae reared in normoxia, 12 kPa hypoxia from 4 to 7 dpf and 4 kPa hypoxia from 6 to 7 dpf.;Figure S2. O2 consumption (ṀO2) across a range of water PO2 in wild-type (A), Hif1aa-/- (B), Hif1ab-/- (C) and Hif1aa-/-ab-/- (D) adult zebrafish. ;Table S1. Comparison of critical O2 tension (Pcrit) calculated using broken stick regression (BSR) and as a linear function of ṀO2 measured at low PO2 (LLO) in wild- type, Hif1aa-/-, Hif1ab-/- and Hif1aa-/-ab-/- in 7 days post fertilization larval zebrafish reared under three different O2 conditions: normoxia, 12 kPa and 4 kPa.;Table S2. Comparison of critical O2 tension (Pcrit) calculated using broken stick regression (BSR) and as a linear function of ṀO2 measured at low PO2 (LLO) in wild-type, Hif1aa-/-, Hif1ab-/- and Hif1aa-/-ab-/- in adult zebrafish.
FrUITeR: A Framework for Evaluating UI Test Reuse
Creators: name: Zhao, Yixue
name: Chen, Justin
name: Sejfia, Adriana
name: Laser, Marcelo Schmitt
name: Zhang, Jie
name: Sarro, Federica
name: Harman, Mark
name: Medvidovic, Nenad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: UI testing is tedious and time-consuming due to the manual effort required. Recent research has explored opportunities for reusing existing UI tests from an app to automatically generate new tests for other apps. However, the evaluation of such techniques currently remains manual, unscalable, and unreproducible, which can waste effort and impede progress in this emerging area. We introduce FrUITeR, a framework that automatically evaluates UI test reuse in a reproducible way. We apply FrUITeR to existing test-reuse techniques on a uniform benchmark we established, resulting in 11,917 test reuse cases from 20 apps. We report several key findings aimed at improving UI test reuse that are missed by existing work.
description: ESEC/FSE 2020
Upper bounds for Steklov eigenvalues of subgraphs of polynomial growth Cayley graphs
Creators: name: Tschanz, Léonard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We study the Steklov problem on a subgraph with boundary $(Ω,B)$ of a polynomial growth Cayley graph $Γ$. We prove that for each $k \in \mathbb{N}$, the $k^{\mbox{th}}$ eigenvalue tends to $0$ proportionally to $1/|B|^{\frac{1}{d-1}}$, where $d$ represents the growth rate of $Γ$. The method consists in associating a manifold $M$ to $Γ$ and a bounded domain $N \subset M$ to a subgraph $(Ω, B)$ of $Γ$. We find upper bounds for the Steklov spectrum of $N$ and transfer these bounds to $(Ω, B)$ by discretizing $N$ and using comparison Theorems.
description: 17 pages
FACTIBILIDAD DE UN DESARROLLO AGROTURÍSTICO EN LA COMUNIDAD AGUA CALIENTE, DEL MUNICIPIO DE CACAHOATÁN, CHIAPAS.
Creators: name: Milla Sánchez, América Inna
name: Mazariegos Sánchez, Adriana
name: Martínez Chávez, Josefina
name: Arévalo Lozano, Ovidio
name: Milla Sánchez, América Inna
name: Mazariegos Sánchez, Adriana
name: Martínez Chávez, Josefina
name: Arévalo Lozano, Ovidio
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: sustainable development in tourism
subject: Rural tourism
subject: agrotourism.

description: The academic "organizational and tourism sustainable development" body analyzed methodological tool of the mesh of the logical framework, establish consistency in the phenomenon to analyze and emphasizing the object of study in this case is highlighted as a Agritouristic development. This had as a product the reality of a scene of natural areas, somewhere neglected by the authorities, the name of this place is hot water and is located in the foothills of the Tacaná volcano, it belongs to the municipality of Cacahoatán, state of Chiapas. (Abstract) theoretical dimensions of sustainability in tourism, agro-tourism were taken into account. From the field of scientific research of sustainable tourism and agro-tourism studies noted a scenario of opportunities for the development of agro-tourism with focus on regional growth in the town that it is.
title: Деятельность органов советской власти и общественных организаций по улучшению экологического состояния городов севера западной Сибири в середине 1960-х – конце 1980-х гг.
title: Activities of Soviet Authorities and Public Organizations to Improve the Ecological Condition of the Cities of the North of Western Siberia in the Mid-1960s – Late 1980 S
Creators: name: Красовитова, Эльвира Сергеевна
Publisher: name: Издательский центр СурГУ
Year: 2021

description: Охрана и улучшение окружающей среды северного базового города в рассматриваемый период стали одной из важнейших проблем, решение которой должно было осуществляться одновременно с формированием производственной и социальной инфраструктуры или даже несколько опережать ее. Специфике этого процесса на Севере Западной Сибири с акцентом на деятельность органов советской власти и общественных организаций посвящена статья.
description: The protection and improvement of the environment of the northern base city in the period under review became one of the most important problems, the solution of which had to be carried out simultaneously with the formation of production and social infrastructure or even slightly ahead of it. The specifics of this process in the North of Western Siberia with an emphasis on the activities of Soviet authorities and public organizations are devoted to the article.
Quasi-stationary states in temporal correlations for traffic systems: Cologne orbital motorway as an example
Creators: name: Wang, Shanshan
name: Gartzke, Sebastian
name: Schreckenberg, Michael
name: Guhr, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Traffic systems are complex systems that exhibit non-stationary characteristics. Therefore, the identification of temporary traffic states is significant. In contrast to the usual correlations of time series, here we study those of position series, revealing structures in time, i.e. the rich non-Markovian features of traffic. Considering the traffic system of the Cologne orbital motorway as a whole, we identify five quasi-stationary states by clustering reduced rank correlation matrices of flows using the $k$-means method. The five quasi-stationary states with nontrivial features include one holiday state, three workday states and one mixed state of holidays and workdays. In particular, the workday states and the mixed state exhibit strongly correlated time groups shown as diagonal blocks in the correlation matrices. We map the five states onto reduced-rank correlation matrices of velocities and onto traffic states where free or congested states are revealed in both space and time. Our study opens a new perspective for studying traffic systems. This contribution is meant to provide a proof of concept and a basis for further study.
Rubidium Spectroscopy at 778-780 nm with a Distributed Feedback Laser Diode
Creators: name: Kraft, S.
name: Deninger, A.
name: Truck, Ch.
name: Fortagh, J.
name: Lison, F.
name: Zimmermann, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have performed high resolution spectroscopy of rubidium with a single mode continuous wave distributed feedback (DFB) laser diode. The saturation spectrum of the D_2-line of 85Rb and 87Rb was recorded with a resolution close to the natural line width. The emission frequency was actively stabilized to Doppler-free transitions with a relative accuracy of better than 7 parts in 10^9 using commercially available servo devices only. An output power of 80 mW was sufficient to allow for two-photon spectroscopy of the 5S-5D-transition of 87Rb. Further, we report on the spectral properties of the DFB diode, its tuning range and its frequency modulation properties. The line width of the diode laser, determined with high resolution Doppler free two photon spectroscopy, was 4 MHz without applying any active stabilization techniques. For time scales below 5 us the line width drops below 2 MHz.
description: accepted by Laser Physics Letters
Wyniki ekonomiczne a nakłady inwestycyjne w indywidualnych gospodarstwach rolnych uczestniczących w polskim FADN w zależności od ich typu rolniczego
Creators: name: Mikołajczyk, Jarosław
name: Mikołajczyk, Jarosław
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Farm Management
subject: Production Economics
subject: Productivity Analysis
subject: economic results
subject: FADN
subject: individual holdings
subject: investments
subject: types of farming
subject: / FADN
subject: gospodarstwa indywidualne
subject: inwestycje
subject: typy rolnicze
subject: wyniki ekonomiczne

description: The article presents the economic performance and investment outlays recorded in the agricultural holdings participating in the Polish FADN. The aim of the paper is to evaluate and assess the differences in investment activity among the agricultural holdings of various types of farming. The findings show a strong dependence of investment expenses upon the farm revenue. The highly specialised horticultural holdings earned the highest income and had higher investment expenses. The lowest income, and hence the lowest investment expenses, were noted in non-specialised holdings. / Synopsis. W artykule zaprezentowano wyniki ekonomiczne oraz nakłady inwestycyjne realizowane w gospodarstwach rolniczych uczestniczących w polskim FADN. Celem opracowania było oszacowanie i ocena różnic w działalności inwestycyjnej pomiędzy gospodarstwami różnych typów rolniczych. Wyniki wskazują na silne uzależnienie poziomu wydatków inwestycyjnych od dochodów gospodarstw. Wysoko wyspecjalizowane gospodarstwa ogrodnicze uzyskiwały najwyższe dochody i realizowały wyższe wydatki inwestycyjne. Najniższe dochody, a co za tym idzie także wydatki inwestycyjne, odnotowano w gospodarstwach bez specjalizacji.
A hypergraph characterization of nearly complete intersections
Creators: name: Bondi, Chiara
name: Gibbons, Courtney R.
name: Ke, Yuye
name: Martin, Spencer
name: Pothagoni, Shrunal
name: Stelzer, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13C05, 13C13, 13C40, 13D02, 13A70

description: Recently, nearly complete intersection ideals were defined by Boocher and Seiner to establish lower bounds on Betti numbers for monomial ideals (arXiv:1706.09866). Stone and Miller then characterized nearly complete intersections using the theory of edge ideals (arXiv:2101.07901). We extend their work to fully characterize nearly complete intersections of arbitrary generating degrees and use this characterization to compute minimal free resolutions of nearly complete intersections from their degree 2 part.
description: This work was initiated as part of the virtual COURAGE REU in Summer 2020, supported by Clemson University's School of Mathematical and Statistical Sciences. Corresponding Author: Courtney R. Gibbons (Hamilton College). 18 pages
Szanse i bariery funkcjonowania rolniczych grup producenckich w opinii członków Lubawskiej Spółdzielni Producentów Trzody „LUB-TUCZ”
Creators: name: Pawlewicz, Adam
name: Empel, Witold
name: Pawlewicz, Adam
name: Empel, Witold
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Livestock Production/Industries
subject: agricultural market
subject: horizontal integration
subject: producer groups
subject: team entrepreneurship
subject: / rynek rolny
subject: integracja pozioma
subject: grupy producenckie
subject: przedsiębiorczość zespołowa

description: The aim of the paper was the recognize the main chances and the barriers of functioning of producer groups, based on the example of the Lubawa cooperative pig breeders producer group ‘Lub- Tucz’, located in the Lubawa commune. A group of pig breeders was surveyed. The survey was conducted in November and December 2009 among 25 owners of farms, belonging to a producer group, chosen at random. In survey, the method of interview with standardised questionnaire was used. The organization of common sale of products as well as purchase of production assets was the main task of the producer groups. The answer to the following question: what internal and the external factors influence the functioning of a producer group of manufacturers of food raw material was searched for. / Synopsis. Celem pracy było poznanie głównych szans i barier funkcjonowania grup producenckich, na przykładzie Lubawskiej Spółdzielni Producentów Trzody „LUB-TUCZ”, działającej na obszarze gminy Lubawa. Podmiotem badań była grupa producentów surowców żywnościowych. Badania były przeprowadzone na przełomie listopada i grudnia 2009 wśród 25 losowo dobranych właścicieli gospodarstw rolnych, należących do grupy producenckiej. W przeprowadzonych badaniach wykorzystano metodę wywiadu z użyciem standaryzowanego kwestionariusza. Wspólna organizacja sprzedaży produktów oraz zakupów środków do produkcji jest głównym zadaniem grupy producenckiej. W analizie próbowano odpowiedzieć na pytanie, jakie wewnętrzne i zewnętrzne czynniki wpływają na funkcjonowanie grup producentów surowców żywnościowych.
Unconventional magnetic ferroelectricity in the quadruple perovskite NaMn$_7$O$_{12}$
Creators: name: Gastaldo, Vinícius Pascotto
name: Klein, Yannick
name: Baptiste, Benoît
name: Cabassi, Riccardo
name: Gilioli, Edmondo
name: Gauzzi, Andrea
name: de Oliveira, Adilson J. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By means of magnetic, specific heat and pyroelectric measurements, we report on magnetic ferroelectricity in the quadruple perovskite \namno, characterized by a canted antiferromagnetic (AFM) CE structure. Surprisingly, ferroelectricity is concomitant to a dramatic broadening of the magnetic hysteresis loop, well below the AFM ordering temperature. This unconventional behavior shows that the formation of ferroelectric domains is induced by the symmetric exchange interaction in the local scale, e.g. at magnetic domain boundaries or defects. The value of electric polarization, $P = 0.027 μ$C cm$^{-2}$, measured in polycrystalline samples is comparatively large as compared to other magnetic multiferroics, suggesting that the above scenario is promising indeed for the rational design of practical multiferroic materials.
description: 5 pages, 4 figures