Las utopías en el discurso pedagógico moderno: espacio escolar y futuros posibles

La pedagogía moderna se organizó en torno a un particular modo de vincularse con el tiempo, produciéndose unas relaciones entre pedagogía y utopía que es posible encontrar en el discurso pedagógico moderno. Se propone indagar en ese vínculo, explorando las articulaciones entre el discurso pedagógico moderno y la idea de futuro, buscando en las obras de los clásicos (Comenio en este caso) las marcas utópicas que acompañan a los presupuestos pedagógicos de la época. Se detiene particularmente en la cuestión espacial, las regulaciones que aparecen al respecto, las relaciones entre espacio, educación y utopía. Se propone explorar acerca de las relaciones entre el considerado padre de la pedagogía y los discursos utópicos de su época, focalizando en las menciones sobre el espacio destinado a las prácticas de enseñanza, en esos discursos. A su vez indagaremos sobre la cuestión del espacio escolar en la actualidad, a partir de los aportes de pensadores contemporáneos que introducen una lectura social y material a las reflexiones sobre el espacioFil: Colussi, Javier. Universidad Nacional de RosarioFil: Serra, María Florencia. Universidad Nacional de Rosari

Complaints, reviews and new perspectives: The school space according to Paulo Freire’s proposals and the contributions of expert theorists

En este ensayo nos proponemos explorar en los diálogos entre los planteos de Paulo Freire y los teóricos del espacio social, indagando en dos líneas: las relaciones entre saberes, educación y espacio, y la materialidad del espacio en el ámbito de lo escolar/educativo. Para esto indagamos enlas producciones bibliográficas del pedagogo brasileño en sus últimos años (las que se corresponden con su vida después del exilio) y los planteos de Engels y Lefebvre. Sostenemos que es posible encontrar puntos comunes en los argumentos de uno y otros en relación a la denuncia sobre la falsa neutralidad de lo espacial.In this essay we propose exploring the dialogue between Paulo Freire’s proposals and the contributions made by social space theorists, addressing two research lines: the relationships between knowledge, education, and space, and the materiality of space in the school/educational field. Bearing this in mind, we inquire into the research works published by the Brazilian pedagogue in his last years after being exiled and the approaches proposed by Engels and Lefebvre. We hold that both works share some ideas in relation to the complaint about the false neutrality of the spatial aspect.Fil: Serra, María Florencia. Universidad Nacional de Rosario. Facultad de Humanidades y Artes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto Rosario de Investigaciones en Ciencias de la Educación. Universidad Nacional de Rosario. Instituto Rosario de Investigaciones en Ciencias de la Educación; ArgentinaFil: Colussi, Javier Alejandro. Universidad Nacional de Rosario. Facultad de Humanidades y Artes; Argentin

Opposite Face Sensitivity of CeO2 in Hydrogenation and Oxidation Catalysis

The determination of structure-performance relationships of ceria in heterogeneous reactions is enabled by the control of the crystal shape and morphology. Whereas the (100) surface, predominantly exposed in nanocubes, is optimal for CO oxidation, the (111) surface, prevalent in conventional polyhedral CeO2 particles, dominates in C2H2 hydrogenation. This result is attributed to the different oxygen vacancy chemistry on these facets. In contrast to oxidations, hydrogenations on CeO2 are favored over low-vacancy surfaces owing to the key role of oxygen on the stabilization of reactive intermediates. The catalytic behavior after ageing at high temperature confirms the inverse face sensitivity of the two reaction families

Mechanism of Ethylene Oxychlorination on Ceria

ISSN:2155-543

Structure and reactivity of ceria-zirconia catalysts for bromine and chlorine production via the oxidation of hydrogen halides

The impact of zirconia on the activity and stability of ceria has been investigated in the gas-phase oxidation of HBr and HCl to the corresponding halogens. Homogeneous and non-homogeneous ceria–zirconia catalysts with a Ce:Zr ratio of 75:25 were prepared and characterized by X-ray diffraction, temperature-programmed reduction in hydrogen, transmission electron microscopy, and X-ray photoelectron spectroscopy. Catalytic tests demonstrated that ZrO₂ promotes the activity of CeO₂ independently of the metal homogeneity in the mixed oxide. Upon cycling of the temperature and feed composition, no differences with respect to chlorine formation were observed. On the other hand, a hysteresis of the reaction rate was measured in HBr oxidation, which was more pronounced over the non-homogeneous mixed oxide due to the higher extent of bromination. A moderate degree of bromination was attained in the homogeneous mixed oxide, leading to an improved long-term stability. The impact of phase homogeneity on the halogenation properties of the catalysts, and thus on the lifetime, was further rationalized by the determination of the halogen uptake by operando prompt-gamma activation analysis. While the chlorine uptake under different reaction conditions was comparable over both materials, the bromine uptake on the non-homogeneous sample was up to 50% higher compared to the homogeneous counterpart. This indicates not only that the catalysts are more prone to bromination than chlorination, but also that their robustness depends on the intermixing of the Ce and Zr phases, suggesting that the mixed oxides are more stable than supported ceria catalysts. The degree of halogenation of the homogeneous ceria–zirconia catalysts can be controlled by tuning their Ce:Zr ratio, minimizing the halogen uptake at a Zr content in the range of 70–90 mol.%

Divulgación Científica No.3

La investigación constituye en sí misma un valioso instrumento para ser empleado por la sociedad, es mucho más que un objeto —sin abandonar lo que por naturaleza le compete: garantizar procesos de calidad—, puede entregar valiosa información sobre diferentes temas de interés, para avanzar en el análisis y propiciar la creación de redes de conocimiento.Research constitutes in itself a valuable instrument to be used by society, it is much more than an object —without abandoning what by nature is its responsibility: guaranteeing quality processes—, it can provide valuable information on different topics of interest, to advance in analysis and promote the creation of knowledge networks

Derechos Humanos desde América Latina. Discusiones y estrategias actuales

Este libro es el resultado de un proyecto colectivo, iniciado a partir de las ponencias del I Congreso de Derechos Humanos desde América Latina, realizado en la Universidad Nacional de Rosario (UNR) en agosto de 2019. Participaron del trabajo los siguientes espacios institucionales: Cátedra de Pensamiento Constitucional Latinoamericano (UNR), Instituto de Cooperación Latinoamericana (UNR), Área de Derechos Humanos (UNR) y Maestría en Derechos Humanos (UASLP).Universidad Nacional de Rosari

Safety of Everolimus With Reduced Calcineurin Inhibitor Exposure in De Novo Kidney Transplants: An Analysis From the Randomized TRANSFORM Study

BACKGROUND: The safety profiles of standard therapy versus everolimus with reduced-exposure calcineurin inhibitor (CNI) therapy using contemporary protocols in de novo kidney transplant recipients have not been compared in detail. METHODS: TRANSFORM was a randomized, international trial in which de novo kidney transplant patients were randomized to everolimus with reduced-exposure CNI (N = 1014) or mycophenolic acid (MPA) with standard-exposure CNI (N = 1012), both with induction and corticosteroids. RESULTS: Within the safety population (everolimus 1014, MPA 1012), adverse events with a suspected relation to study drug occurred in 62.9% versus 59.2% of patients given everolimus or MPA, respectively (P = 0.085). Hyperlipidemia, interstitial lung disease, peripheral edema, proteinuria, stomatitis/mouth ulceration, thrombocytopenia, and wound healing complications were more frequent with everolimus, whereas diarrhea, nausea, vomiting, leukopenia, tremor, and insomnia were more frequent in the MPA group. The incidence of viral infections (17.2% versus 29.2%; P < 0.001), cytomegalovirus (CMV) infections (8.1% versus 20.1%; P < 0.001), CMV syndrome (13.6% versus 23.0%, P = 0.044), and BK virus (BKV) infections (4.3% versus 8.0%, P < 0.001) were less frequent with everolimus. CMV infection was less common with everolimus versus MPA after adjusting for prophylaxis therapy in the D+/R- subgroup (P < 0.001). Study drug was discontinued more frequently due to rejection or impaired healing with everolimus, and more often due to BKV infection or BKV nephropathy with MPA. CONCLUSIONS: De novo everolimus with reduced-exposure CNI yielded a comparable incidence, though a distinctly different pattern, of adverse events versus current standard of care. Both regimens are safe and effective, yet their distinct profiles may enable tailoring for individual kidney transplant recipients.status: publishe