595 research outputs found

    Democracy and social utopias : a study about Albrecht Wellmer and Axel Honneth

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    This work intends to analysis the philosophy of history and to discuss the consequences of this death to the Critical Theory. The concept of reason and the devices of democracy and human rights are discussed in a revision of the historical debate about the end of history operates the life in the interior of the modern society, especially about the intellectual condition at the information society

    Magnetic, thermal and transport properties of Cd doped CeIn3_3

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    We have investigated the effect of Cd substitution on the archetypal heavy fermion antiferromagnet CeIn3_3 via magnetic susceptibility, specific heat and resistivity measurements. The suppression of the Neel temperature, TN_{N}, with Cd doping is more pronounced than with Sn. Nevertheless, a doping induced quantum critical point does not appear to be achievable in this system. The magnetic entropy at TNT_N and the temperature of the maximum in resistivity are also systematically suppressed with Cd, while the effective moment and the Curie-Weiss temperature in the paramagnetic state are not affected. These results suggest that Cd locally disrupts the AFM order on its neighboring Ce moments, without affecting the valence of Ce. Moreover, the temperature dependence of the specific heat below TNT_N is not consistent with 3D magnons in pure as well as in Cd-doped CeIn3_3, a point that has been missed in previous investigations of CeIn3_3 and that has bearing on the type of quantum criticality in this system

    Training-induced inversion of spontaneous exchange bias field on La1.5Ca0.5CoMnO6

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    In this work we report the synthesis and structural, electronic and magnetic properties of La1.5Ca0.5CoMnO6 double-perovskite. This is a re-entrant spin cluster material which exhibits a non-negligible negative exchange bias effect when it is cooled in zero magnetic field from an unmagnetized state down to low temperature. X-ray powder diffraction, X-ray photoelectron spectroscopy and magnetometry results indicate mixed valence state at Co site, leading to competing magnetic phases and uncompensated spins at the magnetic interfaces. We compare the results for this Ca-doped material with those reported for the resemblant compound La1.5Sr0.5CoMnO6, and discuss the much smaller spontaneous exchange bias effect observed for the former in terms of its structural and magnetic particularities. For La1.5Ca0.5CoMnO6, when successive magnetization loops are carried, the spontaneous exchange bias field inverts its sign from negative to positive from the first to the second measurement. We discuss this behavior based on the disorder at the magnetic interfaces, related to the presence of a glassy phase. This compound also exhibits a large conventional exchange bias, for which there is no sign inversion of the exchange bias field for consecutive cycles

    Democratic Ethos and colonial Ethos: human rights education and democracy as a way of life

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    Este artículo discute el desarrollo del ethos democrático, concepto opuesto al de ethos colonial, y que se encuentra en la raíz de los procesos sociales jerárquicos que dificultan los avances de la cultura democrática. Teniendo en cuenta el concepto de esfera pública, y su relación con el mundo de la vida, se desarrolla la relación de co-dependencia entre democracia y respeto a los derechos humanos. Ante estos desafíos, la tarea de la educación en derechos humanos pasa a ser la de desenmascarar, por un lado, y de otro lado la de promover, cultivar y fomentar valores democráticos y republicanos. Desde esta perspectiva, la educación en derechos humanos es analizada como una potente forma de cultivar la democracia y la cultura de derechos humanos.This article discusses the development of democratic ethos. This concept is the opposite of colonial ethos, and is at the root of hierarchical social processes that hinder the advancement of democratic culture. Considering the concept of the public sphere, and its relation to the world of life, the relation between democracy and the respect for human rights is developed in a realistic perspective. Faced with these challenges, the task of human rights education is to unmask, on the one hand, and on the other, to promote and cultivate democratic and republican values. human rights education is interpreted as a strong and decisive way of cultivating democracy and a human rights culture

    Ética, Cidadania e Constituição: o direito à dignidade e à condição humana

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    Em face da tarefa de interpretar o discurso constitucional e extrair a importância para a afirmação da cidadania de um Estado, apresenta-se um olhar possível, uma visão metodológica, para a averiguação do sentido e da importância do princípio da dignidade da pessoa humana para a hermenêutica constitucional

    La Ética de los Derechos Humanos

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    This article touchs the problem of the ethics of humain rights, and discuss all the questions about the principle of the discurs in the domain of the Constitution of the State under the lights of the humain dignity.This article touchs the problem of the ethics of humain rights, and discuss all the questions about the principle of the discurs in the domain of the Constitution of the State under the lights of the humain dignity.En face de la tarea de interpretar el discurso constitucional y extraer la importancia para la afirmación de ciudadanía de un Estado, se presenta una mirada posible, una visón metodológica, para la averiguación del sentido y de la importancia del principio de la dignidad de la persona humana para la hermenéutica constitucional

    Association of a green tea extract with serum immunoglobulin G status and neonatal vitality in newborn dairy calves

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    Poor vigor at birth has been associated with reduced IgG absorption from colostrum and a reduced vitality in neonatal dairy calves. Some natural compounds, such as green tea extract, may improve vitality in compromised calves. The objective of this randomized controlled trial was to evaluate the potential of supplementing a green tea extract (15 mL) to calves to improve vigor and activity behavior for the first 72 h postnatal. Also, this study aimed to investigate the influence of green tea extract supplementation on calf serum IgG concentration and the apparent efficiency of absorption (AEA) of colostral IgG. Holstein calves (n = 24) weighing 42.49 ± 1.07 kg postnatal received a complete random assignment at 3 h of one 15-mL dose of green tea extract (Calf Perk, TechMix) or distilled water orally before tube feeding colostrum replacer (Premolac Plus IgG, Zinpro) at 4 h postnatal. Two observers assessed for calving time and dystocia by live video stream to retrieve all calves within 2 h postnatal. One veterinarian performed a baseline vigor assessment based on heart rate and response to stimuli on all calves at 2.5 h, before colostrum feeding at 3.75 h, as well as at 24, 48, and 72 h postnatal. Calf blood samples were taken to assess total IgG by radial immunodiffusion assay at 2.5, 6, 12, 24, 48, and 72 h. Calf vitality was also observed continuously by video for all calves to determine whether treatment was associated with attempts to stand, lying time, and exploration of their pen environment for the first 24 h. We used an ordinal logistic model to evaluate the odds of green tea extract improving a calf\u27s vigor category from 2.5 h postnatal to 72 h of age. Vigor score was categorized as abnormal (≤4), average (5), or alert (≥6), with hour as a fixed effect. We also ran mixed linear models to evaluate the effect of extract on total IgG and AEA, with time and dystocia as fixed effects. Five dystocia calves were enrolled (2 control, 3 extract), but assistance was minor (e.g., manual assistance and all were assisted within 1 h). Baseline vigor scores and baseline total IgG were not different between groups. Vigor score category was not associated with green tea extract supplementation (odds ratio 1.17; 95% CI: 0.43–3.15) but increased with time compared with controls. We observed no association of treatment with total IgG or AEA in the calves, suggesting green tea extract does not compromise IgG absorption. Calf vitality, lying behavior, and exploratory behavior were not associated with green tea extract treatment. Our findings suggest that green tea extract supplementation does not affect AEA and serum IgG concentration in calves. Future research should evaluate whether green tea extract improves vitality in calves experiencing severe dystocia
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