cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transparency Material for "Beyond Categories: A Flow-Oriented Approach to Social Justice on Online Labour Platforms"
Creators: name: Baygi, Reza Mousavi
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Business
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Anthropology
subject: FOS: Sociology
subject: Management Information Systems
subject: Arts and Humanities
subject: Social and Behavioral Sciences
subject: Capability
subject: Correspondence
subject: Fairness
subject: Flow
subject: Gigwork
subject: MTurk
subject: Online labor platforms
subject: Opportunity
subject: Social justice
subject: Trajectory

description: This registration provides Transparency Material for the article entitled "Beyond Categories: A Flow-Oriented Approach to Social Justice on Online Labour Platforms".

Abstract of the article: Online labour platforms (OLP) are transforming long-established employment relations, raising questions for researchers and policymakers alike as to the social justice implications of this increasingly pervasive, algorithmic, and platform-mediated form of work. In investigating this issue, this paper makes a case for complementing current category-based approaches to social justice, prevalent in literature and policy on OLPs, with a flow-oriented approach that recognises the diversity of gig-work trajectories when it comes to the situated enactment of social (in)justice. Inspired by the recent work of Tim Ingold and building upon seminal work on social justice by Rawls and Sen, we develop a synthetic framework for revealing the social justice implications of OLPs, in terms of the enactment of opportunities and/or barriers, from three perspectives: access to resources, capabilities to function, and correspondences with flows. The latter perspective temporally reinterprets the former two and offers a processual flow-oriented approach to social justice. We further substantiate and showcase the value-added of our approach through an empirical investigation of different gig-working stories on the Amazon MTurk platform and discuss how our flow-oriented approach leads to revealing social justice implications not foregrounded through other approaches. Finally, we derive remedial design and policy principles that can serve to reshape dialogue about social justice on OLPs, both theoretically and practically, in a manner that is more relevant and responsive to the fluid and evolving realities faced by gig-workers.

Keywords: Online labor platforms, social justice, opportunity, fairness, capability, correspondence, flow, trajectory, MTurk
POLÍTICAS PÚBLICAS E CONFLITOS NO CAMPO DO PARÁ: O PAPEL DAS VARAS AGRÁRIAS
Creators: name: Quintans, Mariana Trotta
name: Quintans, Mariana Trotta
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Varas Agrárias
subject: Conflitos no Campo e Políticas Públicas
subject: Agricultural Varas
subject: Conflicts in the Countryside

description: O estado do Pará tem sido palco de intensos conflitos pela posse da terra, alguns estudos apontam como origens deste quadro, o modelo agrário concentracionista e excludente proposto para região. Diante desta realidade, em 2001 foram criadas varas agrárias em diferentes municípios do estado, nas regiões que apresentavam o maior número de conflitos pela posse da terra. Atualmente, existem varas agrárias em cinco municípios, Altamira, Redenção, Marabá, Santarém e Castanhal. Teremos como objetivo analisar o papel destas varas especializadas nos conflitos coletivos pela posse da terra no Pará, a partir do estudo de um caso emblemático, o conflito possessório que levou a morte a missionária americana Doroty Stang.--------------------------------------------------The state of Idaho has been the scene of intense conflict for the possession of the land, some studies suggest as sources of this framework, the model agrarian concentracionista and exclusionary proposed to region. Faced with this reality, in 2001 were created sticks land in towns of the state, in regions that had the highest number of conflicts for possession of the land. Currently, there are sticks land in five municipalities, Altamira, Redemption, Marabá, Santarém and Castanhal. We intended to examine the role of these rods specialized in conflicts by collective ownership of land in Idaho, from the study of an emblematic case, the conflict that led to the death possessório the American missionary Doroty Stang.
Brischoux_etal_Dataset from Osmoregulatory ability predicts geographical range size in marine amniotes
Creators: name: Brischoux, François
name: Lillywhite, Harvey B.
name: Shine, Richard
name: Pinaud, David
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Species that are distributed over wide geographical ranges are likely to encounter a greater diversity of environmental conditions than do narrowly distributed taxa, and thus we expect a correlation between size of geographical range and breadth of physiological tolerances to abiotic challenges. That correlation could arise either because higher physiological capacity enables range expansion, or because widely distributed taxa experience more intense (but spatially variable) selection on physiological tolerances. The invasion of oceanic habitats by amniotic vertebrates provides an ideal system with which to test the predicted correlation between range size and physiological tolerances, because all three lineages that have secondarily moved into marine habitats (mammals, birds, reptiles) exhibit morphological and physiological adaptations to excrete excess salt. Our analyses of data on 62 species (19 mammals, 18 birds, 24 reptiles) confirm that more-widely distributed taxa encounter habitats with a wider range of salinities; and that they have higher osmoregulatory ability as determined by sodium concentrations in fluids expelled from salt-excreting organs. This result remains highly significant even in models that incorporate additional explanatory variables such as metabolic mode, body size and dietary habits. Physiological data thus may help to predict potential range size and perhaps a species' vulnerability to anthropogenic disturbance.
CO observations toward HI-rich Ultra Diffuse Galaxies
Creators: name: Wang, Junzhi
name: Yang, Kai
name: Zhang, Zhi-Yu
name: Fang, Min
name: Shi, Yong
name: Liu, Shu
name: Li, Juan
name: Li, Fei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present CO observations toward a sample of six HI-rich Ultra-diffuse galaxies (UDGs) as well as one UDG (VLSB-A) in the Virgo Cluster with the IRAM 30-m telescope. CO 1-0 is marginally detected at 4sigma level in AGC122966, as the first detection of CO emission in UDGs. We estimate upper limits of molecular mass in other galaxies from the non-detection of CO lines. These upper limits and the marginal CO detection in AGC122966 indicate low mass ratios between molecular and atomic gas masses. With the star formation efficiency derived from the molecular gas, we suggest that the inefficiency of star formation in such HI-rich UDGs is likely caused by the low efficiency in converting molecules from atomic gas, instead of low efficiency in forming stars from molecular gas.
description: accepted by MNRAS letters
Magnetic resonance imaging as an instrument to assess the association between femoral neck bone geometry and strength of the proximal femur
Creators: name: Manske, Sarah Lynn
Publisher: name: University of British Columbia
Year: 2009

description: Introduction: Hip fractures are an increasing health and economic burden. Dual energy x-ray absorptiometry (DXA) is the instrument currently used to diagnose osteoporosis, however, there are limitations associated with using DXA to predict fracture risk and to measure response to therapeutic interventions. Magnetic resonance imaging (MRI) is an emerging instrument to assess bone, however the ability of MRI measurements of femoral neck geometry to predict bone strength has not been previously assessed. Objectives: To evaluate the association of femoral neck cross-sectional geometry measured with MRI with failure load in cadaveric femora, and to compare this association with DXA and Hip Structural Analysis (HSA). The secondary objective was to compare reliability of femoral neck geometry measured with 3 Tesla (T) MRI and 1.5 T MRI systems. Methods: Thirty-six human cadaveric proximal femora underwent DXA and MRI imaging. DXA images were also analyzed with HSA. Areal BMD (aBMD) was evaluated with DXA and HSA. Cross-sectional geometry (area, second area moment of inertia - Ix, and section modulus) were evaluated with MRI (femoral neck region) and HSA (narrow neck and intertrochanteric regions). Inter-analysis and inter-acquisition reliability were compared between measurements with 1.5 T and 3 T MRI systems. The femora were loaded to failure in a fall configuration. Results: Femoral neck cortical cross-sectional area and Ix, measured with MRI, were strongly associated with failure load (R² = 0.47 for both measures, p < 0.001). The predictive ability of Ix was lower than trochanteric aBMD (R² = 0.70), p = 0.10. Ix significantly contributed to the variance explained in failure load after accounting for femoral neck aBMD (R2-change = 0.14, p = 0.01), but not after accounting for trochanteric aBMD (R²-change = 0.03, p = 0.23). Crosssectional geometry, e.g. Ix, measured with MRI explained similar variance in failure load (R² = 0.47) as cross-sectional geometry estimated with HSA (R² = 0.31). Inter-acquisition and interanalysis reliability were similar for 3 T and 1.5 T MRI systems. Summary and Conclusion: Femoral neck cross-sectional geometry assessed with MRI and HSA, and aBMD by DXA were similarly associated with failure load ex vivo. MRI holds promise for the in vivo assessment of cortical bone geometry at the proximal femur, as neither DXA nor HSA are capable of measuring these parameters without major assumptions. However, a targeted program of research that aims to improve and standardize MRI image acquisition and analysis is warranted.
Convergence And Comparing Algorithms
Creators: name: Fallahi, Shirin
Publisher: name: figshare
Year: 2020
Subjects: subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: The file named "imp_sam.RData" is the data set of all samples generated in this study. The scripts here are used to compare four MC sampling algorithms (ACHR, OPTGP, CHRR and Gibbs). The data file "imp_sam.RData" is required to run all scripts for the comparison.
Electronic supplementary material: from Osmoregulatory ability predicts geographical range size in marine amniotes
Creators: name: Brischoux, François
name: Lillywhite, Harvey B.
name: Shine, Richard
name: Pinaud, David
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Appendices 1, 2 & 3
title: Analysis of small-scale power-to-ammonia (P2A) electricity storage in combination with renewable electricity
Creators: name: Mehmeti, Gzim
Publisher: name: TU Wien
Year: 2019
Subjects: subject: power-to-gas
subject: power-to-ammonia
subject: ammonia
subject: energy storage
subject: renewable energy
subject: ammonia-to-power
subject: power-to-gas
subject: power-to-ammonia
subject: ammonia
subject: energy storage
subject: renewable energy
subject: ammonia-to-power

description: The world once was 100% renewable, before the industrialization began and the use of fossil fuels. To become 100% renewable, this should be everyones goal on this earth. The share of renewable energy is increasing and so is the need for energy storages. The problem of volatile renewable energy generation can probably partly be solved by smart grids and load management, and by using other renewable sources with low volatility. But the goals for GHG emissions are set and in order to reach them, volatile energy production such as PV and wind power is necessary. The focus in this thesis was to analyse the use of Power-to-Ammonia storage technology for small-scale use. Power-to-Ammonia storage can be used as a seasonal storage with high energy capacity. A literature research beginning from renewable energy generation up to storage technologies and European energy statistics helped to have an overview of what is needed. The different types of Power-to-Ammonia storage technologies and usage of ammonia as a fuel were collected in different literature. The analyses showed, compared to other storage technologies, Power-to Ammonia has a lot of advantages, especially considering the life cycle analysis. But it also shown that in this development stage, small scale use as described in this thesis could only make sense by merging households to a large-scale plant, due to high investment and operation costs.
Influence of electron-ion collisions on Coulomb crystallization of ultracold neutral plasmas
Creators: name: Pohl, T.
name: Pattard, T.
name: Rost, J. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: While ion heating by elastic electron-ion collisions may be neglected for a description of the evolution of freely expanding ultracold neutral plasmas, the situation is different in scenarios where the ions are laser-cooled during the system evolution. We show that electron-ion collisions in laser-cooled plasmas influence the ionic temperature, decreasing the degree of correlation obtainable in such systems. However, taking into account the collisions increases the ion temperature much less than what would be estimated based on static plasma clouds neglecting the plasma expansion. The latter leads to both adiabatic cooling of the ions as well as, more importantly, a rapid decrease of the collisional heating rate.
title: 01_0911
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: 01_0660
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
TIJOLOS DE TERRA CRUA ESTABILIZADOS COM FIBRAS DE COCO VERDE: ALTERNATIVA PARA HABITAÇÃO DE INTERESSE SOCIAL
Creators: name: Soares, Raquel Nascimento
name: Silva, Adeildo Cabral
name: Pinheiro, Jose Cesar
name: Soares, Raquel Nascimento
name: Silva, Adeildo Cabral
name: Pinheiro, Jose Cesar
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: fibra de coco
subject: arquitetura de terra
subject: cadeia agroindustrial do coco
subject: coconut fiber
subject: raw earth construction
subject: agro-industrial chain of green coconut

description: Este trabalho propõe a utilização da fibra de coco verde incorporada à terra crua como material alternativo na construção de tijolos de adobe. As fibras foram cedidas a partir de uma parceria com a EMBRAPA, onde é produzido em sua Unidade de Beneficiamento da Casca do Coco Verde cerca de 530 t/a de fibra bruta. A fibra inserida ao adobe tem características de agir como um esqueleto principal devido à presença de celulose, lignina e hemicelulose atuarem conferindo uma maior coesão entre os componentes. Como base metodológica, adotou-se Battistelle (2002). Foram confeccionados 8 tijolos com fibras no traço de 10% em volume e 8 tijolos sem fibras (solo) como amostra de referência e realizou-se o ensaio de compressão simples segundo as normas brasileiras de tijolo maciço de barro cozido (NBR 6460/83 e NBR 8492/84), devido à inexistência de uma norma específica para os tijolos de terra crua. Os tijolos com a presença de fibras obtiveram aumento de 25% na resistência em relação à amostra de referência. Pode-se inferir que a utilização da fibra do coco verde incorporada ao adobe é uma alternativa viável economicamente para a construção de habitações de interesse social. ---------------------------------------------This assignment proposed the use of green coconut fiber built to land as raw material alternative to the construction of adobe bricks. The fibers were donated by EMBRAPA, thru a partnership, where it is produced in its Benefaction of the Bark of Green Coconut Unit approximately of 530 tones/year of crude fiber. The fiber inserted to adobe acts as a main structure due to the presence of cellulose, lignin and hemicellulose act giving greater cohesion between the components. As methodological basis, Battistelle (2002) was adopted. 8 bricks with fiber in 10% in volume and 8 bricks without fiber sample (soil) were manufactured as a reference and the Standart Compression test took place according with the Brazilian brick mass of baked clay Standart (NBR 6460/83 and NBR 8492/84), once there is not a specific standard to the bricks of raw land. The bricks with the presence of fiber obtained increase of 25% in the resistance comparing to the reference sample. One can infer that the use of fiber of green coconut incorporated to the adobe bricks is a viable alternative to the development of houses benefit social.
Orchestra „Folclor”: de la aspirații folclorice la angajamente identitare în modernitate
Creators: name: CHIȘELIȚĂ, Vasile
Publisher: name: figshare
Year: 2020
Subjects: subject: 190102 Art History
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Orchestra „Folclor”: de la aspirații folclorice la angajamente identitare în modernitate
Why the Canis Major overdensity is not due to the Warp: analysis of its radial profile and velocities
Creators: name: Martin, N. F.
name: Ibata, R. A.
name: Conn, B. C.
name: Lewis, G. F.
name: Bellazzini, M.
name: Irwin, M. J.
name: McConnachie, A. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In response to criticism by Momany et al. (2004), that the recently-identified Canis Major (CMa) overdensity could be simply explained by the Galactic warp, we present proof of the existence of a stellar population in the direction of CMa that cannot be explained by known Galactic components. By analyzing the radial distribution of counts of M-giant stars in this direction, we show that the Momany et al. (2004) warp model overestimates the number of stars in the Northern hemisphere, hence hiding the CMa feature in the South. The use of a better model of the warp has little influence on the morphology of the overdensity and clearly displays an excess of stars grouped at a distance of D=7.2\pm 0.3 kpc. To lend further support to the existence of a population that does not belong to the Galactic disc, we present radial velocities of M-giant stars in the centre of the CMa structure that were obtained with the 2dF spectrograph at the AAT. The extra population shows a radial velocity of vr=109\pm4 km/s, which is significantly higher than the typical velocity of the disc at the distance of CMa. This population also has a low dispersion (13\pm4 km/s). The Canis Major overdensity is therefore highly unlikely to be due to the Galactic warp, adding weight to the hypothesis that we are observing a disrupting dwarf galaxy or its remnants. This leads to questions on what part of CMa was previously identified as the Warp and how to possibly disentangle the two structures.
description: 5 pages, 4 figures, in press at MNRAS. Revised version with new data and discussion
DESIGUALDADES REGIONAIS E DESEMPENHO DIFERENCIADO DOS MUNICÍPIOS DO RIO GRANDE DO SUL: UMA ANÁLISE A PARTIR DE ELEMENTOS RURAIS
Creators: name: Waquil, Paulo Dabdab
name: Filippi, Eduardo Ernesto
name: Waquil, Paulo Dabdab
name: Filippi, Eduardo Ernesto
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Desenvolvimento regional
subject: desenvolvimento rural
subject: desigualdades regionais

description: O trabalho tem por objetivo evidenciar as dinâmicas regionais diferenciadas no Rio Grande do Sul, destacando características distintas entre três regiões do estado. São feitos testes de comparação de médias para distinguir as características nos indicadores de desempenho, nas estruturas demográfica, fundiária e produtiva, entre a Região Sul, Região Norte e o Eixo que compreende a Região Metropolitana de Porto Alegre (RMPA) e a Aglomeração de Caxias do Sul (ACS). A seguir, procura-se compreender os fatores explicativos dos processos desiguais de desenvolvimento a partir de elementos vinculados aos espaços rurais, considerando um conjunto de indicadores nas três dimensões: demográfica, fundiária e produtiva. Pode-se, com isto, identificar o efeito de cada um dos indicadores sobre o índice de desenvolvimento humano (IDH) e seus componentes. Os resultados sinalizam para a importância de uma análise dos efeitos combinados, dada a complexidade dos processos de desenvolvimento, uma vez que os efeitos individuais de cada indicador são pequenos.
Referințe verticale în cântarea religioasă de resursă bizantină
Creators: name: GALAICU, Violina
Publisher: name: figshare
Year: 2020
Subjects: subject: 190102 Art History
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Referințe verticale în cântarea religioasă de resursă bizantină
Lower-dimension vacuum defects in lattice Yang-Mills theory
Creators: name: Zakharov, V. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We overview lattice data on d=1,2,3 vacuum defects in four-dimensional gluodynamics. In all the cases defects have total volume which scales in physical units (with zero fractal dimension). In case of d=1,2 the defects are distinguished by ultraviolet divergent non-Abelian action as well. This sensitivity to the ultraviolet scale allows to derive from the continuum theory strong constraints on the properties of the defects. The constraints turn to be satisfied by the lattice data. In the SU(2) case we introduce a classification scheme of the defects which allows to (at least) visualize the defect properties in a simple and unified way. Not-yet-checked relation of the defects to the spontaneous chiral symmetry breaking is suggested by the scheme.
description: 19 pages Dedicated to Yuri A. Simonov on his 70th birthday
ANÁLISE DA VOLATILIDADE DOS PREÇOS DE BOI GORDO NO ESTADO DE SÃO PAULO: UMA APLICAÇÃO DOS MODELOS GARCH
Creators: name: Silva, Carlos Alberto Goncalves Da
name: Silva, Carlos Alberto Goncalves Da
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: boi gordo
subject: volatilidade
subject: assimetria
subject: modelos ARCH/GARCH
subject: beef cattle
subject: volatility
subject: asymmetry
subject: ARCH/GARCH models

description: O presente trabalho teve como objetivo realizar uma análise da volatilidade do retorno dos preços de boi gordo no Estado de São Paulo; examinando-se dois fatores determinantes, a persistência de choques e assimetrias na volatilidade, por meio da aplicação dos modelos ARCH/GARCH. Os resultados empíricos mostraram reações de persistência e assimetria na volatilidade, ou seja, os choques negativos e positivos têm impactos diferenciados sobre a volatilidade dos retornos dos preços do boi gordo, o que pode ser comprovado pelos modelos EGARCH e TARCH.--------------------------------------------- This paper aims to analyze the volatility process of the return the prices of beef cattle in the State of São Paulo; examining two factors determinatives, the persistence of shocks and asymmetry in the volatility, by means of the application of ARCH/GARCH models. The empirical results had shown persistence reactions and asymmetry in the volatility, that is, the negative and positive shocks have impacts differentiated on the volatility of the returns of the prices of beef cattle, what it can be proven by EGARCH and TARCH models.
EDUCAÇÃO COOPERATIVA: A EXPERIÊNCIA DO PROGRAMA DO SICREDI “A UNIÃO FAZ A VIDA”
Creators: name: Lago, Adriano
name: Lago, Adriano
Publisher: name: Unknown
Year: 2008
Subjects: subject: Labor and Human Capital
subject: cooperativismo
subject: educação cooperativa
subject: meio ambiente
subject: cooperatives
subject: education
subject: environment

description: Em se tratando do modelo cooperativista, várias são as particularidades que o diferencia dos demais modelos empresarias não cooperativos, dentre elas, uma das principais e talvez relegada a segundo plano pela maioria das cooperativas, é a educação cooperativa, mesmo sendo caracterizada por muitos autores como essencial para a sobrevivência e desenvolvimento do modelo. Neste sentido, o presente estudo busca apresentar algumas particularidades e a importância da educação cooperativa para o modelo cooperativo e para a cooperação de forma geral, para tal, toma-se algumas referências teóricas que dão suporte a metodologia utilizada na apresentação de uma experiência concreta de educação cooperativa, que é o programa “A União Faz a Vida”, o qual foi idealizado e implantado pelo SICREDI no ano de 1995, apresentando grande abrangência na atualidade, bem como, contribuições significativas segundo avaliações dos atores envolvidos. Em 2006 o programa atinge 101 municípios do Rio Grande do Sul, Mato Grosso e Paraná, envolvendo mais de 144.200 alunos, 12.000 professores capacitados em 1.150 escolas e 200 parceiros públicos e privados.--------------------------------------------As to the cooperativism model, there are many particularities which make it different from the other non-cooperative models, among them one of the most important and perhaps relegated to a second plan by most of the cooperatives, that is, the cooperative education, even though it is characterized by many authors as essential for the survival and development of the model. This study aims at showing some particularities and the importance of education for the cooperative model and for the cooperation in general. So, some theoretical references giving support to the methodology used to present a concrete experience of cooperative education, which is the program “Alliance makes Life”, which was thought and implemented by SICREDI in 1995. Nowadays, it presents a wide spectrum as well as it gives significant contributions according evaluations of the involved authors. In 2006, the Program reached 101 municipalities in Rio Grande do Sul, Mato Grosso and Paraná states, involving more than 144,200 students, 12,000 trained teachers in 1,150 schools e 200 public and private partners.
General Survey of Polarization Observables in Deuteron Electrodisintegration
Creators: name: Arenhövel, Hartmuth
name: Leidemann, Winfried
name: Tomusiak, Edward L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Polarization observables in inclusive and exclusive electrodisintegration of the deuteron using a polarized beam and an oriented target are systematically surveyed using the standard nonrelativistic framework of nuclear theory but with leading order relativistic contributions included. The structure functions and the asymmetries corresponding to the various nucleon polarization components are studied in a variety of kinematic regions with respect to their sensitivity to realistic $NN$-potential models, to subnuclear degrees of freedom in terms of meson exchange currents, isobar configurations and to relativistic effects in different kinematical regions, serving as a benchmark for a test of present standard nuclear theory with effective degrees of freedom.
description: 56 pages, 32 figures, revtex4
Protracted Kondo screening and kagome bands in heavy-fermion metal Ce$_{3}$Al
Creators: name: Huang, Li
name: Lu, Haiyan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ce$_{3}$Al is an archetypal heavy-fermion compound with multiple crystalline phases. Here, we try to investigate its electronic structures in the hexagonal phase ($α$-Ce$_{3}$Al) and cubic phase ($β$-Ce$_{3}$Al) by means of a combination of density functional theory and single-site dynamical mean-field theory. We confirm that the 4$f$ valence electrons in both phases are itinerant, accompanied with strong valence state fluctuations. Their 4$f$ band structures are heavily renormalized by electronic correlations, resulting in large effective electron masses. The Kondo screening in Ce$_{3}$Al would be protracted over a wide range of temperature since the single-impurity Kondo temperature $T_{K}$ is much higher than the coherent Kondo temperature $T^{*}_{K}$. Especially, the crystal structure of $α$-Ce$_{3}$Al forms a layered kagome lattice. We observe conspicuous kagome-derived flat bands and Dirac cones (or gaps) in its quasiparticle band structure. Therefore, it is concluded that the hexagonal phase of Ce$_{3}$Al will be a promising candidate of heavy-fermion kagome metal.
description: 8 pages, 6 figures
Production of Eta Mesons in Proton-Proton Collisions Close to Threshold
Creators: name: Czyzykiewicz, R.
name: Adam, H. -H.
name: Budzanowski, A.
name: Grzonka, D.
name: Janusz, M.
name: Jarczyk, L.
name: Kamys, B.
name: Khoukaz, A.
name: Kilian, K.
name: Klaja, P.
name: Kowina, P.
name: Moskal, P.
name: Oelert, W.
name: Piskor-Ignatowicz, C.
name: Przerwa, J.
name: Rozek, T.
name: Santo, R.
name: Sefzick, T.
name: Siemaszko, M.
name: Smyrski, J.
name: Taeschner, A.
name: Winter, P.
name: Wolke, M.
name: Wuestner, P.
name: Zipper, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A brief experimental overview on the close-to-threshold eta meson production in proton-proton interactions is presented and the available observables in measurements with unpolarized and polarized beam and target are discussed.
description: 4 pages; Presented at Meson 2004: 8th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 4-8 June 2004; Submitted to International Journal of Modern Physics A
Phase-bistability between anticipated and delayed synchronization in neuronal populations
Creators: name: Machado, Julio Nunes
name: Matias, Fernanda Selingardi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Two dynamical systems unidirectionally coupled in a sender-receiver configuration can synchronize with a nonzero phase-lag. In particular, the system can exhibit anticipated synchronization (AS), which is characterized by a negative phase-lag, if the receiver (R) also receives a delayed negative self-feedback. Recently, AS was shown to occur between cortical-like neuronal populations in which the self-feedback is mediated by inhibitory synapses. In this biologically plausible scenario, a transition from the usual delayed synchronization (DS, with positive phase-lag) to AS can be mediated by the inhibitory conductances in the receiver population. Here we show that depending on the relation between excitatory and inhibitory synaptic conductances the system can also exhibit phase-bistability between anticipated and delayed synchronization. Furthermore, we show that the amount of noise at the receiver and the synaptic conductances can mediate the transition from stable phase-locking to a bistable regime and eventually to a phase-drift (PD). We suggest that our spiking neuronal populations model could be potentially useful to study phase-bistability in cortical regions related to bistable perception.
Pre- and postsynaptic actions of pentobarbital on corticothalamic transmission
Creators: name: Ran, Israeli
Publisher: name: University of British Columbia
Year: 2009

description: This thesis examined the pre- and postsynaptic actions of an anesthetic barbiturate, pentobarbital, on neurons of the corticothalamocortical system in vitro. The in vivo system mediates conscious and sleep states. The thesis focuses on pentobarbital actions that induce network oscillations, and modify responses of single thalamocortical neurons to corticothalamic stimulus trains. The thesis addressed the following: (1) does pentobarbital induce oscillations in thalamic slices? (2) what receptors contribute to oscillations? (3) how does pentobarbital interact with modulators of excitability? (4) what are pentobarbital effects on post- and presynaptic parameters of glutamatergic transmission during short-term depression (STD)? (5) how do the effects of pentobarbital on STD compare with selective action potential blockade? (6) given the well-known actions of pentobarbital on metabolism, do its effects on STD mimic glucose deprivation? Pentobarbital at a subanesthetic concentration induced 1-15 Hz oscillations, requiring glutamatergic excitation, but not elevated temperature or low extracellular [Mg²⁺]. Glycine receptors mediated oscillations in ventrobasal nuclei, disconnected from nucleus reticularis thalami (nRT). γ-aminobutyrate (GABA) receptors mediated oscillations in isolated nRT. By acting on N-methyl-D-aspartate (NMDA) receptors, spermine modulated membrane rectification, firing threshold, and decay of excitatory postsynaptic potentials (EPSPs). These interactions occurred at the polyamine site on NMDA receptors. Pentobarbital enhanced STD of excitatory postsynaptic currents (EPSCs) by decreasing quantal size. These use-dependent effects persisted during blockade of desensitization and saturation of glutamate receptors and hence, likely were presynaptic. Pentobarbital decreased apparent quantal size and amplitude in the post-stimulus train, evoked miniature EPSCs (minEPSCs) but not ongoing, pre-train minEPSCs, reaffirming a presynaptic action. Pentobarbital eliminated EPSC facilitation early in a train, due to high extracellular [K⁺] ([K⁺][sub e]). Partial blockade of action potentials by tetrodotoxin reduced the apparent quantal size and evoked minEPSC size, without effect on pre-stimulation minEPSC. Like pentobarbital, glucose deprivation reduced quantal size and rundown of quantal contents. Glucose deprivation abolished STD and intra-train, post-gap jump in EPSC amplitude. In summary, this thesis describes several new types of synaptic modulation by pentobarbital that complement known postsynaptic mechanisms of anesthesia. The analysis techniques provide a new approach for examining the pre- and postsynaptic drug effects on transmission in the brain.
How Useful are Reviews for Recommendation? A Critical Review and Potential Improvements
Creators: name: Sachdeva, Noveen
name: McAuley, Julian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: We investigate a growing body of work that seeks to improve recommender systems through the use of review text. Generally, these papers argue that since reviews 'explain' users' opinions, they ought to be useful to infer the underlying dimensions that predict ratings or purchases. Schemes to incorporate reviews range from simple regularizers to neural network approaches. Our initial findings reveal several discrepancies in reported results, partly due to (e.g.) copying results across papers despite changes in experimental settings or data pre-processing. First, we attempt a comprehensive analysis to resolve these ambiguities. Further investigation calls for discussion on a much larger problem about the "importance" of user reviews for recommendation. Through a wide range of experiments, we observe several cases where state-of-the-art methods fail to outperform existing baselines, especially as we deviate from a few narrowly-defined settings where reviews are useful. We conclude by providing hypotheses for our observations, that seek to characterize under what conditions reviews are likely to be helpful. Through this work, we aim to evaluate the direction in which the field is progressing and encourage robust empirical evaluation.
description: 4 pages, 3 figures. Accepted for publication at SIGIR '20
Dissociation of hadrons in quark matter within finite temperature field theory approach on the light front
Creators: name: Mattiello, S.
name: Beyer, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a relativistic three-body equation to investigate the properties of nucleons in hot and dense nuclear/quark matter. Within the light front approach we utilize a zero-range interaction to study the three-body dynamics. The relativistic in-medium equation is derived within a systematic Dyson equation approach that includes the dominant medium effects due to Pauli blocking and self energy corrections. We present the in-medium nucleon mass and calculate the dissociation of the three-body system.
description: 4 pages, 2 figures. Presented by S. Mattiello at Light-Cone 2004, Amsterdam, 16 - 20 August
إعادة هندسة العمليات الإدارية في مرافق المعلومات العربية
Creators: name: خليفة, بسمة الشيشني
Publisher: name: Zenodo
Year: 2017

description: مما لا شك فيه أن إعادة هندسة العمليات الإدارية هي واحدة من التوجهات الإدارية المهمة التي تقود عملية التغيير في مرافق المعلومات العربية ، بحيث تجعلها تبدأ عملها من جديد ، وتنتهي بتقديم الخدمات للمستفيدين بالمواصفات التي تلبي إحتياجاتهم ورغباتهم وبمستوى جودة عال ، إذ تسهم إعادة هندسة العمليات الإدارية في تحفيز مرافق المعلومات على مواكبة التغيرات الحاصلة في العصر الحالي . كما يمكن إعتبار إعادة هندسة العمليات الإدارية منهجا جديدا في الفكر الإداري المعاصر الذي يقوم على التغير الجذرى وطرح الأساليب القديمة جانبا ، وحتى يتسنى لمرافق المعلومات العربية مواكبة التحديات والتطورات الحديثة والإستفادة من معطيات العصر ، لابد من اللحاق بالتوجه العالمي نحو التطورات الإدارية الحديثة بعامة ومنهج إعادة الهندسة الإدارية بخاصة . ومن هذا المنطلق أتى هذا البحث ليتناول إعادة هندسة العمليات الإدارية في مرافق المعلومات العربية ، من حيث مكوناتها وعناصرها ومتطلباتها وأهدافها وفوائدها ومبادئها ، فضلا عن أنواع مرافق المعلومات التي تحتاج إلي إعادة هندسة العمليات الإدارية بها ، كما تناول البحث القائمين على إعادة هندسة العمليات الإدارية داخل مرافق المعلومات العربية .
Supplementary Information: from The differential role of practical and emotional support in infant feeding experience in the UK
Creators: name: Myers, S.
name: Page, A. E.
name: Emmott, E. H.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Contains information regarding variable derivation, model selection, deviations from the preregistration, tables S1-S8 and figures S1–S25.
Performance of PMTs for the JSNS2 experiment
Creators: name: Park, J. S.
name: Furuta, H.
name: Maruyama, T.
name: Monjushiro, S.
name: Nishikawa, K.
name: Taira, M.
name: Jang, J. S.
name: Joo, K. K.
name: Kim, J. Y.
name: Lim, I. T.
name: Moon, D. H.
name: Seo, J. H.
name: Shin, C. D.
name: Zohaib, A.
name: Gwak, P.
name: Jang, M.
name: Ajimura, S.
name: Hiraiwa, T.
name: Nakano, T.
name: Nomachi, M.
name: Shima, T.
name: Sugaya, Y.
name: Cheoun, M. K.
name: Choi, J. H.
name: Pac, M. Y.
name: Dodo, T.
name: Hino, Y.
name: Suekane, F.
name: Ujiie, R.
name: Harada, M.
name: Hasegawa, S.
name: Kasugai, Y.
name: Meigo, S.
name: Sakai, K.
name: Sakamoto, S.
name: Suzuya, K.
name: Jordan, J. R.
name: Spitz, J.
name: Marzec, E.
name: Botran, M.
name: Kawasaki, T.
name: Konno, T.
name: Jang, H. I.
name: Kang, S. K.
name: Kim, E. J.
name: Seo, H.
name: Kim, S. Y.
name: Kim, W.
name: Niiyama, M.
name: Peeters, S. J. M.
name: Ray, H.
name: Rott, C.
name: Yu, I.
name: Jeon, H.
name: Jeon, S.
name: Jung, D. E.
name: Kim, S. B.
name: Kwon, E.
name: Lee, D. H.
name: Stancu, I.
name: Yeh, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The JSNS$^{2}$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24\,m short baseline at J-PARC. The JSNS$^{2}$ inner detector is filled with 17 tons of gadolinium-loaded liquid scintillator (LS) and both the intermediate $γ$-catcher and the optically separated outer veto are filled with un-loaded LS. Optical photons from scintillation are observed by 120 Photomultiplier Tubes (PMTs). A total of 130 PMTs for the JSNS2 experiment were both donated by other experiments and purchased from Hamamatsu. Donated PMTs were purchased around 10 years ago, therefore JSNS$^{2}$ did pre-calibration of the PMTs including the purchased PMTs. 123 PMTs demonstrated acceptable performance for the JSNS$^{2}$ experiment, and 120 PMTs were installed in the detector.
pH modulation of Ca2+-dependent afterhyperpolarizations in rat hippocampal neurons
Creators: name: Kelly, Tony
Publisher: name: University of British Columbia
Year: 2009

description: In the present study, I examined the effects of changes in extracellular pH (pH₀) on the fast, medium and slow afterhyperpolarizations (AHPs) in rat hippocampal neurons and assessed the contributions of changes in Ca²⁺ influx and intracellular pH (pH[sub i]) to the effects observed. Initially, sharp microelectrode recordings were employed to confirm previous findings that decreases and increases in pH₀ inhibit and augment, respectively, the fast, medium and slow AHPs in CA1 pyramidal neurons in hippocampal slices. Whole-cell patch-clamp recordings were then used to extend these findings and provide the first descriptions of the effects of changes in pH₀ and pH[sub i] on the currents underlying the medium AHP (m/AHP) and slow AHP •(s/[sub AHP]). The results of these experiments indicated not only that changes in pH[sub i] could modulate the AHPs independent of changes in Ca²⁺ influx but also that the relative contributions of changes in Ca²⁺ influx and pH[sub i] to the modulation of the medium and slow AHPs by changes in pH₀ were dependent on the direction of the pH₀ change. Whereas low pH₀ -induced reductions in 9-4- the AHPs and their underlying currents were dependent on decreases in Ca influx rather than decreases in pH[sub i], the augmented AHPs observed at high pH₀ in large part reflected increases in pH[sub i] rather than increases in Ca influx. The latter observations were confirmed through the use of a novel technique for the simultaneous measurement of pH[sub i], intracellular free calcium concentration ([Ca²⁺][sub i]) and membrane potential in patch-clamped cultured hippocampal neurons. The final series of experiments examined the possibility that the high pH₀-induced augmentation of the slow AHP might act to limit the increase in neuronal excitability typically observed during increases in pH₀. The sensitivity of AHPs to changes in pH₀ and pH[sub i] has a number of implications for neuronal function under physiological and pathophysiological conditions.