Social Justice, Deferred Complicity, and the Moral Plight of the Wealthy

Faced with the facts of economic inequality, the wealthy are confronted with a particular set of moral, social, and political questions, not least of which is the question of how to preserve a sense of being a “good” human being. In the case of justifying privilege, the problem becomes how to position oneself as being uniquely able to enact a superior moral character. In this response to Swalwell’s article, we argue that her data show how being good and having moral standing is a social outcome that is premised on the unequally distributed ability to do certain things, to enact certain roles, and to mobilize particular discourses. Swalwell demonstrated the complicated ways in which privileged students understand what it means to have a commitment to social justice, and her analysis raises questions about the possibility of as well as the potential for educating students with economic privilege toward social justice commitments. In this response we highlight the important symbolic role that economically disadvantaged groups play in the imaginary of students who attend elite private schools and what this illustrates about the ways in which they are complicit in sustaining social inequality

Peralkaline and alkaline magmatism of the Ossa-Morena zone (SW Iberia): Age, source, and implications for the Paleozoic evolution of Gondwanan lithosphere

The Ossa-Morena zone in SW Iberia represents a section of the northern margin of West Gondwana that formed part of a Cordilleran-type orogenic system during the Neoproterozoic (Cadomian orogeny). The crustal section in this zone preserves the record of rifting that led to the opening of the Rheic Ocean in the early Paleozoic and the collision of Gondwana and Laurussia in the late Paleozoic (Variscan orogeny). We present U-Pb zircon data from three alkaline to peralkaline syenites that intruded Neoproterozoic and Cambrian strata and give crystallization ages ranging between ca. 490 Ma and 470 Ma. Lu/Hf isotopic data from these zircons give positive initial εHf values (0 ≤ εHf(t) ≤ +11.5) that approach the model values for the depleted mantle at the time of crystallization. This suggests that a significant proportion of the magma was derived from the mantle, with limited mixing/assimilation with crustal-derived melts. Alkaline/peralkaline magmatic suites of similar age and chemical composition intruded other sections of the northern margin of West Gondwana and along the boundaries of the continental blocks that today make up Iberia. These blocks are further characterized by the presence of high-pressure metamorphic belts that formed during accretion and subsequent collision of peri-Gondwanan domains against Laurussia during the Devonian and Carboniferous (Variscan orogeny). Our U-Pb and Lu-Hf data set indicates that during the Cambrian−Ordovician transition, lithosphere extension reached a stage of narrow intracontinental rifting, where deeply sourced magmas, probably coming from the lower crust and/or the upper mantle, intruded continental upper crust across various sections of previously stretched crust. We propose that necking of the Gondwana lithosphere into several continental microblocks with fertile mantle beneath them compartmentalized extension (multiblock model), which favored the onset of early Paleozoic peralkaline and alkaline magmas. The boundaries of microblocks represent zones of inherited crustal weakness that were later reactivated during the late Paleozoic as major accretionary faults related to the amalgamation of Pangea during the Variscan orogeny. Our dynamic model provides an explanation for the unusual spatial relationship between peralkaline and alkaline igneous provinces (usually shallow in the crust) and the occurrence of high-pressure rocks. Our observations suggest that Cordilleran-type orogens subjected to extension after long-lived subduction can develop wide continental platforms that feature multiple continental blocks. In addition, the formation of sequenced high-pressure belts in collisional orogens can be explained as the ultimate consequence of multiple necking events within continental lithosphere during previous collapse of a Cordilleran-type orogen

Genomic analyses of microdissected Hodgkin and Reed-Sternberg cells: mutations in epigenetic regulators and p53 are frequent in refractory classic Hodgkin lymphoma

This work was supported by grants from the Plan Nacional de I + D + I cofinanced by the ISCIII-Subdirección General de Evaluación and the Fondo Europeo de Desarrollo Regional (FEDER), PI12/1832, the Spanish Association for Cancer Research (AECC), and Programas para Grupos de Investigación de la Comunidad Autónoma de Madrid (Biomedicina 2017)

Miocardiopatía no compacta o espongiforme

Varónde 32 años que consulta por dos mesesde palpitaciones episódicas en los últimos dos meses. El examen físico solo reveló extra sístoles aisladas. El ecocardiograma mostró que el miocardio no era homogéneo en su contraste y definición, con diversas imágenes de trabeculación y anfractuosidades o grietas en el miocardio de las paredes del ventrículo izquierdo, engrosamiento del subendocardio a nivel del segmento no compacto: y, el eco-Doppler a color mostró la penetración sanguínea dentro de las anfractuosidades. Estos signos fueron compatibles con un miocardio no compacto o espongiforme, porlo quese revisa la literatura a propósito de esteinusual caso

Enantioselective inverse-electron demand Aza-Diels-Alder reaction: ipso,α-selectivity of silyl dienol ethers

A highly efficient enantioselective inverse-electron-demand aza-Diels-Alder reaction between aza-sulfonyl-1-aza-1,3-butadienes and silyl (di)enol ethers has been developed. The presented methodology allows the synthesis of benzofuran-fused 2-piperidinol derivatives with three contiguous stereocenters in a highly selective manner, as even the hemiaminal center is completely stereocontrolled. Density functional theory (DFT) calculations support that the hydrogen-bond donor-based bifunctional organocatalyst selectively triggers the reaction through the ipso,α-position of the dienophile, in contrast to the reactivity observed for dienolates in situ generated from β,γ-unsaturated derivatives. Moreover, the calculations have clarified the mechanism of the reaction and the ability of the hydrogen-bond donor core to hydrolyze selectively theEisomer of the dienol ether. Furthermore, to demonstrate the applicability of silyl enol ethers as nucleophiles in the asymmetric synthesis of interesting benzofuran-fused derivatives, the catalytic system has also been implemented for the highly efficient installation of an aromatic ring in the piperidine adductsFinancial support was provided by the European Research Council (ERC-CoG, contract number: 647550), Spanish Government (RTI2018-095038-B-I00), and “Comunidad de Madrid” and European Structural Funds (S2018/NMT-4367

Promoción y extensión universitaria acerca del uso racional de la energía y las energías renovables en las escuelas de nivel medio : Una experiencia en Oberá, Misiones

El presente trabajo expone el desarrollo de dos proyectos de extensión llevados a cabo dentro del Programa de Fortalecimiento a las Actividades de Extensión (PROFAE), que desempeña la Universidad Nacional de Misiones. Cabe destacar que entendemos la extensión universitaria como una relación de diálogo e interacción con el “otro”, en este caso la comunidad y que esta relación implica un mutuo aprendizaje, en donde la calidad académica y el compromiso con la sociedad son los componentes indispensables en este vínculo. En este sentido y en un marco de diálogo plural, es que sostenemos que la cooperación entre la universidad y el conjunto de la sociedad contribuye a concretar los anhelos de una educación universitaria más inclusiva y una sociedad mas justa. Así es que los proyectos fueron realizados con la finalidad de diagnosticar, transferir conocimientos e incentivar la promoción sobre temáticas referentes al uso racional de la energía y a energías renovables. Los destinatarios de ambos proyectos fueron docentes y alumnos del nivel medio de instituciones locales, siendo los alumnos los destinatarios indirectos. En ambos proyectos se proporcionaron conferencias a los docentes, abordando la temática mencionada. En las mismas hubo una elevada interacción con los asistentes, quienes aportaron experiencias y/o conocimientos personales como así también manifestaron la necesidad de abordar la temática con sus alumnos.The present study describes the development of two outreach projects undertaken within the Strengthening Extension Activities Program (PROFAE), which plays the National University of Misiones. They were made with the purpose of diagnosing, transfer knowledge and encourage the promotion on topics concerning the rational use of energy and renewable energy. The recipients of both projects were teachers and students in the average level of local institutions, students still indirect recipients. Both projects were provided conference, addressing the topic. At the same there was a high interaction with the audience, who brought experience and / or personal knowledge as well as expressed the need to address the issue with their students.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Green and blue materials for the ceramic industry from pink MgCoxNi1-xSiO4 (0 ≤ x ≤ 1) solid solutions

In this study, MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions with an olivine structure were synthetized via the chemical coprecipitation method and materials with a smaller M(II) (M = Co, Ni) amount than Co2SiO4 and Ni2SiO4 compounds were obtained. At 1200 °C, the Co(II) and Ni(II) were randomly distributed in the MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions with the olivine structure, but the occupation of Co(II) and Ni(II) ions in M1 (4a) octahedral sites was obtained at a higher level than in M2 (4c) octahedral sites. The Mg(II) ions prefer the M2 sites. This preference explains the main contribution of the M1 sites in spectra of octahedral Co(II) ions and the M1-O and M2-O distances jointly explain the pink colour of the MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions, while the colour of Co2SiO4 is blue. Spectra can be interpreted as the sum of Ni(II) and Co(II) ions in octahedral sites. When these solid solutions are enamelled, the pink colouring changes to green or blue because of the presence of tetrahedral Co(II).Funding for open access charge: CRUE-Universitat Jaume

Molybdenum-Catalyzed Synthesis of Nitrogenated Polyheterocycles from Nitroarenes and Glycols with Reuse of Waste Reduction By-product

A novel domino reduction/imine formation/intramolecular cyclization/oxidation for the efficient synthesis of pyrrolo(indolo)[1,2-a]quinoxalines and pyrrolo(indolo)[3,2-c]-quinolines from readily available nitrobenzenes and glycols is reported. The process utilizes the carbonyl byproduct of the initial dioxomolybdenum(VI)-catalyzed reduction of nitroaromatics with glycols as a reagent for the imine generation. This method represents the first sustainable domino reaction for the preparation of biologically relevant heterocycles that internally incorporates the waste formed in the first step to the final product.Junta de Castilla y León and FEDER (BU076U16) and Ministerio de Economía y Competitividad (MINECO) (CTQ2015-70371-REDT and CTQ2016-75023- C2-1-P

Diseño de un convertidor CC-CC aislado para sistemas de generación fotovoltaica

Este trabajo presenta el diseño de un convertidor CC-CC en configuración puente completo unidireccional elevador de tensión, utilizado como etapa de conversión de la energía eléctrica generada por paneles fotovoltaicos o un banco de baterías. Este convertidor opera con una tensión de entrada que va desde 105V a 120V, con una potencia de 5kW. La tensión de salida, puede ser de 350V o 600V, permitiendo la conexión de un inversor CC-CA monofásico o trifásico para alimentar directamente la carga del usuario, conectarse a la red comercial, u operar de forma autónoma en paralelo con otras fuentes de energía renovables. Se efectúa un análisis de la configuración utilizada y de la técnica de modulación de los semiconductores de potencia. Se presentan también las etapas del diseño y selección de los componentes necesarios para el armado del convertidor. Finalmente, es abordada parte de la estrategia de control propuesta, validada con resultados de simulación.This paper presents the design of a phase-shift modulated dc-to-dc full-bridge boost converter, used to convert the electric energy generated by a photovoltaic array or battery banks. This converter works with an input voltage of 105V to 120V and a 5kW output power. The output voltage can be of 350V to 600V, in order to provide an adequate dc link for a dc-to-ac single-phase or three-phase converter. This final stage, allows feed directly the user loads when the photovoltaic system operate in standalone or in parallel with other renewable energy sources, however also it is possible to connect this converter to the grid. A detailed analysis of the bridge configuration and the modulation technique is carried out. The design steps and the components selection needed to assemble the converter are presented too. Finally, part of the proposed control strategy is approached and its performance is validated with simulation results.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES