cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Key Experiment and Quantum Reasoning
Creators: name: Waitzmann, Moritz
name: Weber, Kim-Alessandro
name: Wessnigk, Susanne
name: Scholz, Ruediger
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: key experiment
subject: nature of science
subject: physics education
subject: quantum reasoning
subject: quantum theory
subject: scientific literacy
subject: single photon experiments
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: For around five decades, physicists have been experimenting with single quanta such as single photons. Insofar as the practised ensemble reasoning has become obsolete for the interpretation of these experiments, the non-classical intrinsic probabilistic nature of quantum theory has gained increased importance. One of the most important exclusive features of quantum physics is the undeniable existence of the superposition of states, even for single quantum objects. One known example of this effect is entanglement. In this paper, two classically contradictory phenomena are combined to one single experiment. This experiment incontestably shows that a single photon incident on an optical beam splitter can either be reflected or transmitted. The almost complete absence of coincident clicks of two photodetectors demonstrates that these two output states are incompatible. However, when combining these states using two mirrors, we can observe interference patterns in the counting rate of the single photon detector. The only explanation for this is that the two incompatible output states are prepared and kept simultaneously—a typical consequence of a quantum superposition of states. (Semi-)classical physical concepts fail here, and a full quantum concept is predestined to explain the complementary experimental outcomes for the quantum optical “non-waves” called single photons. In this paper, we intend to demonstrate that a true quantum physical key experiment (“true” in the sense that it cannot be explained by any classical physical concept), when combined with full quantum reasoning (probability, superposition and interference), influences students’ readiness to use quantum elements for interpretation.
Retail Food Price Inflation in 2020 Outpaced Historical Average by 75 Percent
Creators: name: Chelius, Carolyn
name: MacLachlan, Matthew
name: Chelius, Carolyn
name: MacLachlan, Matthew
Publisher: name: Unknown
Year: 2021
Subjects: subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Financial Economics
subject: Public Economics
subject: COVID-19
subject: Grocery stores
subject: Food prices
subject: Food-at-home
subject: Price inflation
subject: Supply chains

description: The coronavirus (COVID-19) pandemic had wide-ranging effects on U.S. consumers in 2020, including on the prices they encountered at the grocery store. Food-at-home price inflation was above average in 2020, primarily as a result of the pandemic. Grocery store food prices increased by 3.5 percent, on average, from 2019 to 2020. For context, the 20-year historical level of retail food price inflation is 2 percent per year—meaning the 2020 increase was 75 percent above average. This level of retail food price inflation was last realized in 2011, when poor weather, low commodity harvests, high fuel prices, and international trade disruptions increased global food prices.
Stellar Activity and the Stromgren Photometric Metallicity Calibration of Intermediate-Type Dwarf Stars
Creators: name: Martell, Sarah L.
name: Smith, Graeme H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the effect of stellar activity, as measured by X-ray luminosity, on metallicities of Solar-neighborhood F and G dwarfs derived from Stromgren photometry. Rocha-Pinto & Maciel found evidence that Stromgren colors systematically underpredict [Fe/H] for stars with extremely high Ca II H & K emission. We investigate whether a recent photometric metallicity calibration derived by Martell & Laughlin might be subject to this effect, and whether the amount of underprediction could reliably be expressed as a function of log (L_X/L_bol). Among those calibration stars used by Martell & Laughlin which are also in the Bright Star Catalogue and detected in the ROSAT All-Sky Survey there is no evidence for a correlation between photometric metallicity and stellar activity. However, many of the "very active stars" on which the Rocha-Pinto & Maciel result was based are members of interacting binaries or are very young in age, and are not included in the X-ray sample that we are using. Among normal dwarf stars it appears that stellar activity has little effect on the metallicity calibration of Stromgren colors.
description: 8 pages plus 10 figures, to appear in the October 2004 edition of PASP
Microtextures in the Chelyabinsk impact breccia reveal the history of Phosphorus-Olivine-Assemblages in chondrites
Creators: name: Walton, Craig R.
name: Baziotis, Ioannis
name: Černok, Ana
name: Shorttle, Oliver
name: Asimow, Paul D.
name: Ferrière, Ludovic
name: Anand, Mahesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The geochemistry and textural associations of chondritic phosphate minerals can provide insights into the geological histories of parental asteroids, but the processes governing their formation and deformation remain poorly constrained. Here, we present a quantitative assessment of phosphorus-bearing mineral textures in the three variously-shocked lithologies (light, dark, and melt) of the Chelyabinsk (LL5) ordinary chondrite using scanning electron microscope, electron microprobe, cathodoluminescence, and electron backscatter diffraction techniques. Phase associations, microtextures, and microstructures of phosphates are extremely variable within and between the differently-shocked lithologies investigated in the Chelyabinsk meteorite. We observe continuously strained as well as recrystallized, strain-free phosphate populations. Recrystallized grains (with strain-free subdomains) are present only in the more intensely shocked dark lithology, indicating that phosphate growth in Chelyabinsk predates the development of primary shock-metamorphic textures. This disruption event is also recorded by complete melting of portions of the meteorite to produce the shock-melt lithology, which contains a population of phosphorus-rich olivine grains. We interpret the textures and phase associations of Chelyabinsk to have resulted from initial phosphate growth via metasomatic olivine replacement, followed by major deformation during an early shock-melting impact and a subsequent minor shock event. This minor event appears to have generated a sub-population of phosphates that display patchy CL textures, in both the light and dark lithology. Finally, we propose a new classification scheme to describe various types of Phosphorus-Olivine-Assemblages (Type I-III POAs), which can be used to classify shock metamorphic events and define the associated physicochemical processes.
description: Accepted in Meteoritics and Planetary Science
Constraints and Strategies for the Development of the Seed System in Mozambique
Creators: name: Howard, Julie A.
name: Low, Jan W.
name: Jeje, Jose Jaime
name: Boughton, Duncan
name: Massingue, Jaquelino
name: Maredia, Mywish K.
name: Howard, Julie A.
name: Low, Jan W.
name: Jeje, Jose Jaime
name: Boughton, Duncan
name: Massingue, Jaquelino
name: Maredia, Mywish K.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Mozambique
subject: seed system

description: The purpose of this working paper is to help accelerate improvements in seed sector performance by providing a practical framework for reviewing seed sector development strategy in a market economy context. The paper is divided into three major sections. The first section defines what a seed system is and presents a generalized model of the stages of seed sector development over time, identifying the driving forces at each stage. The second part of the paper describes the current organization and performance of Mozambique’s seed sector, concluding with the constraints identified at the first national seed workshop held in Maputo in June 1999. The sector is at present primarily driven by emergency seed supply, most of which is imported.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Usabilidade da interface virtual de museus constituídos apenas no plano físico
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Ferreira, Rubens Ramos
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O artigo realiza uma análise sobre a interface virtual de museus constituídos apenas no plano físico, a partir da perspectiva dos principais elementos que configuram os sistemas de navegação de websites. A metodologia utilizada consiste em uma análise da literatura da área e das interfaces virtuais de museus constituídos apenas no plano físico, de caráter assistemático. Dentre os principais resultados, identificou-se a navegabilidade e usabilidade como premissas essenciais para museus inseridos na dinâmica do fluxo de dados e interações sociais que sustentam o Ciberespaço.
Referência eletrônica do artigo: FERREIRA, Rubens Ramos; ROCHA, Luisa Maria Gomes de Mattos. Usabilidade da interface virtual de museus constituídos apenas no plano físico. In: Encontro Nacional de Pesquisa em Ciência da Informação, n. XIX, 2018, Londrina. Anais do XIX Enancib. Londrina: Universidade Estadual de Londrina, 2018, p. 6018-6037. ISSN: 2177-3688. Disponível em: . Acesso em: [inserir data de consulta].DOI:10.6084/m9.figshare.12508784
Reading for conflict as a counseling practice : a comparison of structural, systemic, and process models
Creators: name: Leese, Jeffrey Robert
Publisher: name: University of British Columbia
Year: 2009

description: This interpretive inquiry applies three theories dealing with interpersonal conflict to a career related conversation between a father and his adolescent son. Benjamin's structural analysis (2003), Pearce and Littlejohn's systemic communications model (1997), and Mindell's process-oriented psychology (2000) each portray the dyad interaction. An action analysis of the interpretive procedure, conception of conflict, and conflict resolution intervention provides a basis for comparing the theories. The findings identified temporal parsing, metaphor and teleonomy in the pattern recognition algorithm as distinguishing features of each approach.
Comparison of alternative improved perturbative methods for nonlinear oscillations
Creators: name: Amore, Paolo
name: Fernandez, Francisco
name: Raya, Alfredo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss and compare two alternative perturbation approaches for the calculation of the period of nonlinear systems based on the Lindstedt--Poincaré technique. As illustrative examples we choose one--dimensional anharmonic oscillators and the Van der Pol equation. Our results show that each approach is better for just one type of model considered here.
description: 15 pages, 5 figures
Novos tempos Novos processos - conexões entre universos sem pontes
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O artigo tem por objetivo refletir sobre algumas das transformações ocorridas nos museus, que geraram novas funções e desafios para o campo da Museologia, notadamente nas transições do objeto autêntico para a valorização de experiências, assim como da transposição de fronteiras classificatórias para a compreensão das redes de relações sociais dos objetos em diferentes momentos. Estas transformações têm seu reflexo nos processos demusealização, em particular, na documentação, pesquisa e comunicação. A metodologia utilizada foi a pesquisa documental e bibliográfica. Os resultados apontam que nas três instâncias revelam-se processos de continuidade e transformação, presentes tanto na relação entre os conceitos transversais em paralelo a outras disciplinas, em abordagens de interdisciplinaridade ou transdisciplinaridade, quanto pela valorização de temáticas que cruzam os planos socioculturais com o propósito de superar as fronteiras do conhecimento através de novas relações de colaboração ancoradas nas redes sociais. Estas subsidiam as ações comunicacionais enriquecidas pelas curadorias participativas, colaborativas e compartilhadas.
Constrangimentos e Estratégias para o Desenvolvimento do Sistema de Sementes em Moçambique
Creators: name: Howard, Julie A.
name: Low, Jan W.
name: Jeje, Jose Jaime
name: Boughton, Duncan
name: Massingue, Jaquelino
name: Maredia, Mywish K.
name: Howard, Julie A.
name: Low, Jan W.
name: Jeje, Jose Jaime
name: Boughton, Duncan
name: Massingue, Jaquelino
name: Maredia, Mywish K.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Mozambique
subject: seed system

description: The purpose of this working paper is to help accelerate improvements in seed sector performance by providing a practical framework for reviewing seed sector development strategy in a market economy context. The paper is divided into three major sections. The first section defines what a seed system is and presents a generalized model of the stages of seed sector development over time, identifying the driving forces at each stage. The second part of the paper describes the current organization and performance of Mozambique’s seed sector, concluding with the constraints identified at the first national seed workshop held in Maputo in June 1999. The sector is at present primarily driven by emergency seed supply, most of which is imported.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Spherical and hyperspherical harmonics representation of van der Waals aggregates
Creators: name: Lombardi, Andrea
name: Palazzetti, Federico
name: Aquilanti, Vincenzo
name: Grossi, Gaia
name: Albernaz, Alessandra F.
name: Barreto, Patricia R. P.
name: Cruz, Ana Claudia P. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The representation of the potential energy surfaces of atom molecule or molecular dimers interactions should account faithfully for the symmetry properties of the systems, preserving at the same time a compact analytical form. To this aim, the choice of a proper set of coordinates is a necessary precondition. Here we illustrate a description in terms of hyperspherical coordinates and the expansion of the intermolecular interaction energy in terms of hypersherical harmonics, as a general method for building potential energy surfaces suitable for molecular dynamics simulations of van der Waals aggregates. Examples for the prototypical case diatomic molecule diatomic molecule interactions are shown.
description: 4 pages, 2 figures
Patrimônio Esportivo Imaterial. Do mundial ao municipal - o tombamento do bola pesada em Niterói
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Mitidieri, Maria Cristina De A.
name: Rocha, Luisa Maria Gomes De Mattos.
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: esta pesquisa analisa e identifica diferenças e similaridades entre os processos de patrimonialização das práticas esportivas do Hurling (UNESCO, 2018) e do Bola Pesada(Niterói, RJ, 2015). Objetiva estabelecer e ressaltar a estreita relação entre a patrimonialização dos bens imateriais do patrimônio esportivo e sua salvaguarda. Por meio de pesquisa documental e de visitas técnicas, traça um comparativo entre os processos estabelecidos pelaUNESCO e pelo município de Niterói, sob o prisma de suas motivações e da documentação apresentada frente às exigências e às diferentes metodologias adotadas por cada uma dessas instâncias. Conclui que o mero decreto de um bem como patrimônio não irá atingir o objetivo maior da patrimonialização: a salvaguarda e a transmissão futura deste patrimônio cultural.
Periódicos Científicos e Museologia no Brasil: Canais de Comunicação Científica de Docentes dos Programas de Pós-Graduação
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Chalhub, Tania
name: Benchimol, Alegria
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: A pesquisa, de caráter descritivo, é apoiada na Bibliometria (Lei de Bradford) como método, e utiliza duas técnicas para coletar e analisar os dados: pesquisas bibliográfica e documental. O objetivo foi discutir as características dos principais periódicos utilizados, entre 2012 e 2018, pelospesquisadores dos Programas de Pós-Graduação stricto sensu em Museologia do Brasil, como canais de comunicação da sua produção científica. Dos 216 periódicos utilizados como canal de publicação científica pelos 70 pesquisadores, sete (3,3%) publicaram 23% dos artigos, sendo cinco destes periódicos relacionados à Museologia ou a museus. Os periódicos estudados atendem às principais exigências da comunicação científica. Estes resultados apontam para um cenário favorável esse canal de comunicação em Museologia no Brasil. Apesar de recente e em pouco número, os periódicos da área apresentam características importantes para sua consolidação e melhor avaliação, garantindo um canal de escoamento da produção de conhecimento específica da área.
Referência eletrônica do artigo:
CHALHUB, Tania; BENCHIMOL, Alegria; ROCHA, Luisa Maria Gomes de Mattos. Periódicos científicos e Museologia no Brasil: canais de comunicação científica de docentes dos programas de pós-graduação. In: Encontro Nacional de Pesquisa em Ciência da Informação, n. XX, 2019, Florianópolis. Anais do XX Enancib. Florianópolis: Universidade Federal de Santa Catarina, 2019, p. 1-19. ISSN: 2177-3688. Disponível em: . Acesso em: [inserir data de consulta].DOI:10.6084/m9.figshare.12508646
Investment Priorities for the Development of Mozambique's Seed System
Creators: name: Rohrbach, David D.
name: Low, Jan W.
name: Pitoro, Raul
name: Cucu, Alfredo
name: Massingue, Jaquelino
name: Boughton, Duncan
name: Rafael, Guilhermina
name: Paulo, Antonio M.
name: Jocene, Domingos
name: Rohrbach, David D.
name: Low, Jan W.
name: Pitoro, Raul
name: Cucu, Alfredo
name: Massingue, Jaquelino
name: Boughton, Duncan
name: Rafael, Guilhermina
name: Paulo, Antonio M.
name: Jocene, Domingos
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Mozambique

description: This policy brief outlines a number of steps for strengthening Mozambique’s seed system based on interviews conducted in the year 2000 and a review of existing literature. These include measures to speed the distribution of new seed varieties, and to place this distribution on a more sustainable footing. Recommendations are offered for strategies to better link variety development with seed multiplication and distribution. Proposals are highlighted to improve the complementarities of public and commercial investments in the national seed system. Opportunities for improving the efficiency of seed delivery through emergency relief programs are briefly reviewed. The paper concludes with a call for greater dialogue across all elements of the national seed sector in order to speed the pursuit of a common agenda for seed system development.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Usabilidade da Interface Virtual de Museus Constituídos Apenas no Plano Físico
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Ferreira, Rubens Ramos
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O artigo realiza uma análise sobre a interface virtual de museus constituídos apenas no plano físico, a partir da perspectiva dos principais elementos que configuram os sistemas de navegação de websites. A metodologia utilizada consiste em uma análise da literatura daárea e das interfaces virtuais de museus constituídos apenas no plano físico, de caráter assistemático. Dentre os principais resultados, identificou-se a navegabilidade e usabilidade como premissas essenciais para museus inseridos na dinâmica do fluxo de dados e interaçõessociais que sustentam o Ciberespaço.
Novos tempos, novos processos: conexões entre universos sem pontes
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: O artigo tem por objetivo refletir sobre algumas das transformações ocorridas nos museus, que geraram novas funções e desafios para o campo da Museologia, notadamente nas transições do objeto autêntico para a valorização de experiências, assim como da transposição de fronteiras classificatórias para a compreensão das redes de relações sociais dos objetos em diferentes momentos. Estas transformações têm seu reflexo nos processos demusealização, em particular, na documentação, pesquisa e comunicação. A metodologia utilizada foi a pesquisa documental e bibliográfica. Os resultados apontam que nas três instâncias revelam-se processos de continuidade e transformação, presentes tanto na relação entre os conceitos transversais em paralelo a outras disciplinas, em abordagens de interdisciplinaridade ou transdisciplinaridade, quanto pela valorização de temáticas que cruzam os planos socioculturais com o propósito de superar as fronteiras do conhecimento através de novas relações de colaboração ancoradas nas redes sociais. Estas subsidiam as ações comunicacionais enriquecidas pelas curadorias participativas, colaborativas e compartilhadas.
Referência eletrônica do artigo:
ROCHA, Luisa Maria Gomes de Mattos. Novos tempos, novos processos: conexões entre universos sem pontes. Museologia e Patrimônio - Revista Eletrônica do Programa de Pós-Graduação em Museologia e Patrimônio, Unirio/MAST, vol. 12, n. 1, p. 10-35, 2019. ISSN 1984-3917. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12508910
Distinguishing step relaxation mechanisms via pair correlation functions
Creators: name: Dougherty, D. B.
name: Lyubinetsky, I.
name: Einstein, T. L.
name: Williams, E. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Theoretical predictions of coupled step motion are tested by direct STM measurement of the fluctuations of near-neighbor pairs of steps on Si(111)-root3 x root3 R30 - Al at 970K. The average magnitude of the pair-correlation function is within one standard deviation of zero, consistent with uncorrelated near-neighbor step fluctuations. The time dependence of the pair-correlation function shows no statistically significant agreement with the predicted t^1/2 growth of pair correlations via rate-limiting atomic diffusion between adjacent steps. The physical considerations governing uncorrelated step fluctuations occurring via random attachment/detachment events at the step edge are discussed.
description: 17 pages, 4 figures
Recursive construction of the operator product expansion in curved space
Creators: name: Fröb, Markus B
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I derive a formula for the coupling-constant derivative of the coefficients of the operator product expansion (Wilson OPE coefficients) in an arbitrary curved space, as the natural extension of the quantum action principle. Expanding the coefficients themselves in powers of the coupling constants, this formula allows to compute them recursively to arbitrary order. As input, only the OPE coefficients in the free theory are needed, which are easily obtained using Wick's theorem. I illustrate the method by computing the OPE of two scalars $ϕ$ in hyperbolic space (Euclidean Anti-de Sitter space) up to terms vanishing faster than the square of their separation to first order in the quartic interaction $g ϕ^4$, as well as the OPE coefficient $\mathcal{C}^{\mathbb{1}}_{ϕϕ}$ at second order in $g$.
description: 51 pages, matches published version
One-Loop Amplitudes Of Gluons In SQCD
Creators: name: Britto, Ruth
name: Buchbinder, Evgeny
name: Cachazo, Freddy
name: Feng, Bo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One-loop amplitudes of gluons in supersymmetric Yang-Mills are four-dimensional cut-constructible. This means that they can be determined from their unitarity cuts. We present a new systematic procedure to explicitly carry out any finite unitarity cut integral. The procedure naturally separates the contributions from bubble, triangle and box scalar integrals. This technique allows the systematic calculation of N=1 amplitudes of gluons. As an application we compute all next-to-MHV six-gluon amplitudes in N=1 super-Yang-Mills.
description: 49 pages, 4 figures, harvmac. v2: references added, typos fixed. v3: corrections to 3-mass-triangle coefficients, footnote 6 added, acknowledgments added. v4: a typo in formulas for the 3-mass-triangle coefficient is corrected, acknowledgments added
MPEC 2024-T288 : 2024 TY14
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TY14

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Nucleon Polarizabilities from Deuteron Compton Scattering within a Green's-Function Hybrid Approach
Creators: name: Hildebrandt, Robert P.
name: Griesshammer, Harald W.
name: Hemmert, Thomas R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We examine elastic Compton scattering from the deuteron for photon energies ranging from zero to 100 MeV, using state-of-the-art deuteron wave functions and NN-potentials. Nucleon-nucleon rescattering between emission and absorption of the two photons is treated by Green's functions in order to ensure gauge invariance and the correct Thomson limit. With this Green's-function hybrid approach, we fulfill the low-energy theorem of deuteron Compton scattering and there is no significant dependence on the deuteron wave function used. Concerning the nucleon structure, we use Chiral Effective Field Theory with explicit Δ(1232) degrees of freedom within the Small Scale Expansion up to leading-one-loop order. Agreement with available data is good at all energies. Our 2-parameter fit to all elastic $γd$ data leads to values for the static isoscalar dipole polarizabilities which are in excellent agreement with the isoscalar Baldin sum rule. Taking this value as additional input, we find α_E^s= (11.3+-0.7(stat)+-0.6(Baldin)) x 10^{-4} fm^3 and β_M^s = (3.2-+0.7(stat)+-0.6(Baldin)) x 10^{-4} fm^3 and conclude by comparison to the proton numbers that neutron and proton polarizabilities are essentially the same.
description: 47 pages LaTeX2e with 20 figures in 59 .eps files, using graphicx. Minor modifications; extended discussion of theoretical uncertainties of polarisabilities extraction. Version accepted for publication in EPJA
Prioridades de Investimento para o Desenvolvimento do Sistema de Sementes em Moçambique
Creators: name: Rohrbach, David D.
name: Low, Jan W.
name: Pitoro, Raul
name: Cucu, Alfredo
name: Massingue, Jaquelino
name: Boughton, Duncan
name: Rafael, Guilhermina
name: Paulo, Antonio M.
name: Jocene, Domingos
name: Rohrbach, David D.
name: Low, Jan W.
name: Pitoro, Raul
name: Cucu, Alfredo
name: Massingue, Jaquelino
name: Boughton, Duncan
name: Rafael, Guilhermina
name: Paulo, Antonio M.
name: Jocene, Domingos
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Mozambique

description: This policy brief outlines a number of steps for strengthening Mozambique’s seed system based on interviews conducted in the year 2000 and a review of existing literature. These include measures to speed the distribution of new seed varieties, and to place this distribution on a more sustainable footing. Recommendations are offered for strategies to better link variety development with seed multiplication and distribution. Proposals are highlighted to improve the complementarities of public and commercial investments in the national seed system. Opportunities for improving the efficiency of seed delivery through emergency relief programs are briefly reviewed. The paper concludes with a call for greater dialogue across all elements of the national seed sector in order to speed the pursuit of a common agenda for seed system development.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
On massive tensor multiplets
Creators: name: Kuzenko, S. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Massive tensor multiplets have recently been scrutinized in hep-th/0410051 and hep-th/0410149, as they appear in orientifold compactifications of type IIB string theory. Here we formulate several dually equivalent models for massive N = 1, N=2 tensor multiplets in four space-time dimensions. In the N = 2 case, we employ harmonic and projective superspace techniques.
description: 17 pages, LaTeX, no figures; V2: reference added
Patrimônio Esportivo Imaterial. Do mundial ao municipal: o tombamento do bola pesada em Niterói
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Mitidieri, Maria Cristina De A.
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: Esta pesquisa analisa e identifica diferenças e similaridades entre os processos de patrimonialização das práticas esportivas do Hurling (UNESCO, 2018) e do Bola Pesada(Niterói, RJ, 2015). Objetiva estabelecer e ressaltar a estreita relação entre a patrimonialização dos bens imateriais do patrimônio esportivo e sua salvaguarda. Por meio de pesquisa documental e de visitas técnicas, traça um comparativo entre os processos estabelecidos pelaUNESCO e pelo município de Niterói, sob o prisma de suas motivações e da documentação apresentada frente às exigências e às diferentes metodologias adotadas por cada uma dessas instâncias. Conclui que o mero decreto de um bem como patrimônio não irá atingir o objetivo maior da patrimonialização: a salvaguarda e a transmissão futura deste patrimônio cultural.
Referência eletrônica do artigo:
MITIDIERI, Maria Cristina de A.; ROCHA, Luisa Maria Gomes de Mattos. Patrimônio Esportivo Imaterial. Do mundial ao municipal: o tombamento do “bola pesada” em Niterói. Recorde, Rio de Janeiro, v. 12, n. 1, p. 1-16, 2019. ISSN: 1982-8985. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12508931
A family centered, positive behaviour support aproach to food refusal behaviour
Creators: name: Binnendyk, Lauren
Publisher: name: University of British Columbia
Year: 2009

description: Many parents of children with autism spectrum disorder (ASD) commonly report a struggle to cope with their child's food refusal behaviour. Numerous studies have demonstrated the effectiveness of interventions based on applied behaviour analysis for increasing food acceptance and decreasing mealtime problem behaviour among children with developmental disabilities; however, these studies also revealed several limitations that may affect the acceptability, meaningfulness, and durability of outcomes. These limitations have been addressed by an approach to problem behaviour closely allied with applied behaviour analysis. This approach is called Positive Behaviour Support (PBS). The purpose of this study is to evaluate the effectiveness of a parent-implemented, positive behaviour support plan that is based on a functional assessment and feeding assessment, for improving eating behaviour for a child with ASD during a home-based snack routine. The study employed a quasi-experimental, case study design with one eating routine, using a multiple probe strategy. Results showed improvements in child eating behaviour and participation within the snack routine following training and support activities. These improvements maintained six weeks after the termination of implementation support. Implementation of the positive behaviour support approach also was associated with generalization of the child's eating behaviour to new foods and to the child's father's successful implementation the snack routine. The results are discussed with reference to previous research, contributions, future directions, and implications for practitioners and researchers who are involved in behavioural feeding interventions.
Desempenho do Sector Algodoeiro ao Nível da Machamba em Nampula: Situação Actual e Perspectivas para o seu Melhoramento
Creators: name: Pitoro, Raul
name: Govene, Olivia
name: De Marrule, Higino Francisco
name: Tschirley, David L.
name: Boughton, Duncan
name: Pitoro, Raul
name: Govene, Olivia
name: De Marrule, Higino Francisco
name: Tschirley, David L.
name: Boughton, Duncan
Publisher: name: Unknown
Year: 2001
Subjects: subject: Food Security and Poverty
subject: food security
subject: food policy
subject: Mozambique

description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Comportamento dos Mercados Grossistas de Grão de Milho Branco Durante o Ano 2000
Creators: name: Abdula, Danilo Carimo
name: Abdula, Danilo Carimo
Publisher: name: Unknown
Year: 2001
Subjects: subject: Food Security and Poverty
subject: food security
subject: food policy
subject: Mozambique

description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Engineering room-temperature multiferroicity in Bi and Fe codoped BaTiO3
Creators: name: Pal, Pratap
name: Paramanik, Tapas
name: Rudrapal, Krishna
name: Majumder, Supriyo
name: Yadav, Satish
name: Mahana, Sudipta
name: Topwal, Dinesh
name: Choudhary, Ram Janay
name: Singh, Kiran
name: Chaudhuri, Ayan Roy
name: Choudhury, Debraj
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Fe doping into BaTiO3, stabilizes the paraelectric hexagonal phase in place of the ferroelectric tetragonal one [P. Pal et al. Phys. Rev. B, 101, 064409 (2020)]. We show that simultaneous doping of Bi along with Fe into BaTiO3 effectively enhances the magnetoelectric (ME) multiferroic response (both ferromagnetism and ferroelectricity) at room-temperature, through careful tuning of Fe valency along with the controlled-recovery of ferroelectric-tetragonal phase. We also report systematic increase in large dielectric constant values as well as reduction in loss tangent values with relatively moderate temperature variation of dielectric constant around room-temperature with increasing Bi doping content in Ba1-xBixTi0.9Fe0.1O3 (0
description: 16 pages, 17 figures
Patrimônio Audiovisual: do analógico ao digital
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Ferreira, Rubens Ramos
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: Propõe-se analisar a digitalização de acervos audiovisuais a partir da perspectiva de seu processo de digitalização analógico-digital. A metodologia utilizada consiste em umaanálise da literatura da área e de observação direta e participativa, com foco nos acervos de imagem e movimento. Dentre os principais resultados, foi possível constatar que a digitalização deve estar assegurada dentro de uma política institucional que devendo prever tanto as etapas de conservação e documentação das interfaces analógico-digitais, quanto de sustentabilidade e reuso do acervo digitalizado.
Referência eletrônica do artigo:
FERREIRA, Rubens Ramos; ROCHA, Luisa Maria Gomes de Mattos. Patrimônio audiovisual: do analógico ao digital. In: Encontro Nacional de Pesquisa em Ciência da Informação, n. XX, 2019, Florianópolis. Anais do XX Enancib. Florianópolis: Universidade Federal de Santa Catarina, 2019, p. 1-15. ISSN: 2177-3688. Disponível em: . Acesso em: [inserir data de consulta].DOI: 10.6084/m9.figshare.12508634
Difficulties with Recollapsing models in Closed Isotropic Loop Quantum Cosmology
Creators: name: Green, Daniel
name: Unruh, William G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The use of techniques from loop quantum gravity for cosmological models may solve some difficult problems in quantum cosmology. The solutions under a number of circumstances have been well studied. We will analyse the behaviour of solutions in the closed model, focusing on the behaviour of a universe containing a massless scalar field. The asymptotic behaviour of the solutions is examined, and is used to determine requirements of the initial conditions.
description: 10 pages, accepted to Phys. Rev. D
O Desafio Do Saláio Minimo: Considerações Teóricas E Práticas
Creators: name: Low, Jan W.
name: Boughton, Duncan
name: De Marrule, Higino Francisco
name: Mole, Paulo Nicua
name: Massingue, Jaquelino
name: Low, Jan W.
name: Boughton, Duncan
name: De Marrule, Higino Francisco
name: Mole, Paulo Nicua
name: Massingue, Jaquelino
Publisher: name: Unknown
Year: 2002
Subjects: subject: Food Security and Poverty
subject: food security
subject: food policy

description: This research paper explains the economic concepts related to minimum salary definition in an open economy, in order to create more fair policies of minimum salary definition. The effects of minimum salary on investment decisions, technology selection and employment creation are explained. In addition, it summarizes the main systems of minimum salary determination used all over the world. Furthermore, the paper brings some analysis on the policies of minimum salary determination used in Mozambique since 1987. The main findings are: 1) the major determinant of minimum salary in Mozambique is the ability of the government to pay the public workers; 2) there was an increase of real minimum salary in the last four years due to the reduction of inflation, economic growth and annual increases in the minimum salary; 3) the establishment of agricultural minimum salary must be based on specific conditions of agricultural sector, and the difference between industrial and agricultural minimum salary must be reduced gradually; 4) since the economic conditions are heterogenic, the use of only one minimum salary for whole country in not adequate.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Discussiepaper: Waarde van open voor het onderwijs
Creators: name: De Jong, Michiel
name: Post, Marijn
name: Jacobi, Ria
name: van der Woert, Nicolai
name: Schuwer, Robert
Publisher: name: Zenodo
Year: 2024

description: Er is binnen het onderwijs veel aandacht voor het maken, bewerken, publiceren en delen van open leermaterialen, ten behoeve van onderwijsvernieuwing. Wij zien dat er tot op heden echter nog te weinig aandacht is voor de toepassing van open leermaterialen en het aannemen van open waarden in het onderwijs. Ook al zijn er diverse programma’s geïnitieerdvanuit SURF en was het werken met Open Leermaterialen een strategisch doel van het ministerie van OC&W. In deze discussiepaper gaan wij daar dieper op in, aan de hand van een overzicht van de waarde van ‘open’ voor het onderwijs. Dit kan fungeren als startpunt voor een bredere discussie over de motieven voor Open Education en de strategie om het toe te kunnen passen in het onderwijsontwerp, zowel binnen het WO, het HBO, als het MBO.Dit artikel is geschreven door de experts Digitale Leermaterialen Npuls en collega’s uit de community.
Passado, Presente E Futuro Do Sistema De Informação De Mercados Agricolas (SIMA).
Creators: name: Santos, Ana Paula
name: Donovan, Cynthia
name: Abdula, Danilo Carimo
name: Tschirley, David L.
name: Arlindo, Pedro
name: Santos, Ana Paula
name: Donovan, Cynthia
name: Abdula, Danilo Carimo
name: Tschirley, David L.
name: Arlindo, Pedro
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: food policy

description: This research paper provides a brief history of agricultural market information system in Mozambique. It describes the process of agricultural market information system establishment. In addition, the paper provides a description of the whole process of agricultural market data collection, processing and publication. The paper provides some prospects and future challenges of agricultural market information system. Finally, it discusses four alternatives scenarios that could be adopted in long term in order to ensure the improvement of market access by the small-scale farmers and promote the equity in different groups of market participants, contributing for agricultural development.
description: Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
The Hot Intergalactic Medium - Galaxy Connection: Two Strong Absorbers in the Sightline Toward PG 1211+143
Creators: name: Tumlinson, Jason
name: Shull, J. Michael
name: Giroux, Mark L.
name: Stocke, John T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present HST/STIS and FUSE spectra of the QSO PG 1211+143 (z_em = 0.081) and a galaxy survey of the surrounding field. This sightline shows two strong intergalactic absorption systems at cz ~ 15,300 and 19,300. This sightline addresses the nature and origin of the OVI absorbers, and their connection to galaxies. We explore the relationship of these absorbers to the nearby galaxies and compare them to other OVI-bearing absorbers in diverse environments. At 15,300 km s^-1, we find four distinct HI components and associated CII, CIII, CIV, SiII, SiIII, SiIV, NV, and OVI, lying near a spiral-dominated galaxy group with a bright member galaxy 137 h_70^-1 kpc from the sightline. The observed ions of C, Si, and N are likely to be photoionized, but the OVI is more consistent with collisional ionization. The ion ratios in this absorber resemble the highly-ionized Galactic HVCs; it may also trace the hot intragroup medium gas or the unbound wind of an undiscovered dwarf galaxy. At 19,300 km s^-1, we find five HI components and associated CIII, SiIII, and collisionally-ionized OVI lying 146 h_70^-1 kpc from an isolated galaxy. The properties of the OVI-bearing gas are consistent with an origin in strong shocks between low-metallicity gas (>= 2 - 6 % solar) and one or more of the warm photoionized components. It is likely that these absorbers are related to the nearby galaxies, perhaps by outflows or gas stripped from unseen satellite galaxies by interactions. However, we cannot reject completely the hypothesis that they reside in the same large-scale structure in which the galaxies are embedded but are otherwise not directly related.
description: accepted by ApJ, to appear Feb 10 2005
Periódicos Científicos e Museologia no Brasil - Canais de Comunicação Científica de Docentes dos Programas de Pós-Graduação
Creators: name: Núcleo Multidimensional De Gestão Do Patrimônio E De Documentação Em Museus (NUGEP) Universidade Federal Do Estado Do Rio De Janeiro (UNIRIO)
name: Chalhub, Tania
name: Benchimol, Alegria
name: Rocha, Luisa Maria Gomes De Mattos
Publisher: name: figshare
Year: 2020
Subjects: subject: Museology
subject: 210204 Museum Studies
subject: FOS: Media and communications

description: A pesquisa, de caráter descritivo, é apoiada na Bibliometria (Lei de Bradford) como método, e utiliza duas técnicas para coletar e analisar os dados: pesquisas bibliográfica e documental. O objetivo foi discutir as características dos principais periódicos utilizados, entre 2012 e 2018, pelospesquisadores dos Programas de Pós-Graduação stricto sensu em Museologia do Brasil, como canais de comunicação da sua produção científica. Dos 216 periódicos utilizados como canal de publicação científica pelos 70 pesquisadores, sete (3,3%) publicaram 23% dos artigos, sendo cinco destes periódicos relacionados à Museologia ou a museus. Os periódicos estudados atendem às principais exigências da comunicação científica. Estes resultados apontam para um cenário favorável esse canal de comunicação em Museologia no Brasil. Apesar de recente e em pouco número, os periódicos da área apresentam características importantes para sua consolidação e melhor avaliação, garantindo um canal de escoamento da produção de conhecimento específica da área.
Disorder and electron interaction control in low-doped silicon metal-oxide-semiconductor field effect transistors
Creators: name: Ferrus, T.
name: George, R.
name: Barnes, C. H. W.
name: Pepper, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We fabricated silicon metal-oxide-semiconductor field effect transistors where an additional sodium-doped layer was incorporated into the oxide to create potential fluctuations at the Si-SiO2 interface. The amplitude of these fluctuations is controlled by both the density of ions in the oxide and their position relative to the Si-SiO2 interface. Owing to the high mobility of the ions at room temperature, it is possible to move them with the application of a suitable electric field. We show that, in this configuration, such a device can be used to control both the disorder and the electron-electron interaction strength at the Si-SiO2 interface.
description: 3 pages, 2 figures