Mensaje

Mensaje a los estudiantes de arquitectura del arquitecto Oscar Niemeyer, con motivo del VIII Encuentro Latinoamericano de Estudiantes de Arquitectura del cono sur: ELEA, realizado entre el 24 y el 31 de octubre de 1998, en la Facultad de Arquitectura y Urbanismo de la Universidad Nacional de La Plata.Facultad de Arquitectura y Urbanism

Mensaje

Mensaje a los estudiantes de arquitectura del arquitecto Oscar Niemeyer, con motivo del VIII Encuentro Latinoamericano de Estudiantes de Arquitectura del cono sur: ELEA, realizado entre el 24 y el 31 de octubre de 1998, en la Facultad de Arquitectura y Urbanismo de la Universidad Nacional de La Plata.Facultad de Arquitectura y Urbanism

Edificio Eiffel

Oscar Niemeyer ha resuelto este bloque de viviendas con originalidad de fachadas y acertada composición de volúmenes. Su emplazamiento, en la Plaza de la República de Río de Janeiro, ha sido felizmente aprovechado al resolver su alzado principal a ella con gran diafanidad, alternando las superficies acristaladas y paneles de piezas prefabricadas perforadas. El cuerpo central se eleva airoso sobre los laterales, más bajos, apoyándose todo el conjunto sobre una base de apariencia mas sólida —la zona comercial—, cuyo cuerpo superior, liso y blanco, está monótonamente modulado por una serie de pequeñas ventanas. El edificio se destina a viviendas. En él se distribuyen 54 apartamentos, todos ellos de tipo Duplex, con absoluta separación entre las zonas nobles y de servicio. De sus 12.800 m2 de superficie construida, sólo 9.940 m2 son de área útil

Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile

In this contribution, we present a reassessment of the Pular Formation age (Sierra de Almelda, Antofagasta) that in previous papers was attributed to either the Late Paleozoic or Triassic. At Quebrada del Medio, the Pular Formation includes a 379-meter-thick stratigraphic section formed from base to top by conglomerates, sandstones, black bituminous shales and limestones, tuffaceous sandstones and a poorly welded ignimbrite that , accumulated in fluvial and lacustrine environments. A multidisciplinary study of the flora and fauna was undertaken. The existence of diagnostic Gondwana microflora and macroflora allows attributing a Middle Triassic to early Late Triassic age to the Pular Formation.Facultad de Ciencias Naturales y Muse

INHIBITION OF ENERGY METABOLISM BY BENZOXAZOLIN-2-ONE

Abstract--l. The effects of the title compound (BOA) on energy-linked reactions in mitochondria were studied. 2. BOA inhibited electron transfer between the flavin and ubiquinone in Complex I, and ATP synthesis at the F~ moiety of the ATPase complex. 3. These results are discussed in relation to the toxicity of BOA towards a wide range of aerobic organisms

Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile

In this contribution, we present a reassessment of the Pular Formation age (Sierra de Almelda, Antofagasta) that in previous papers was attributed to either the Late Paleozoic or Triassic. At Quebrada del Medio, the Pular Formation includes a 379-meter-thick stratigraphic section formed from base to top by conglomerates, sandstones, black bituminous shales and limestones, tuffaceous sandstones and a poorly welded ignimbrite that , accumulated in fluvial and lacustrine environments. A multidisciplinary study of the flora and fauna was undertaken. The existence of diagnostic Gondwana microflora and macroflora allows attributing a Middle Triassic to early Late Triassic age to the Pular Formation.Facultad de Ciencias Naturales y Muse

HETDEX Public Source Catalog 1: 220K Sources Including Over 50K Lyman Alpha Emitters from an Untargeted Wide-area Spectroscopic Survey

We present the first publicly released catalog of sources obtained from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure the Hubble expansion parameter and angular diameter distance at 1.88<z<3.52 by using the spatial distribution of more than a million Ly-alpha-emitting galaxies over a total target area of 540 deg^2. The catalog comes from contiguous fiber spectra coverage of 25 deg^2 of sky from January 2017 through June 2020, where object detection is performed through two complementary detection methods: one designed to search for line emission and the other a search for continuum emission. The HETDEX public release catalog is dominated by emission-line galaxies and includes 51,863 Ly{\alpha}-emitting galaxy (LAE) identifications and 123,891 OII-emitting galaxies at z<0.5. Also included in the catalog are 37,916 stars, 5274 low-redshift (z<0.5) galaxies without emission lines, and 4976 active galactic nuclei. The catalog provides sky coordinates, redshifts, line identifications, classification information, line fluxes, OII and Ly-alpha line luminosities where applicable, and spectra for all identified sources processed by the HETDEX detection pipeline. Extensive testing demonstrates that HETDEX redshifts agree to within deltaz < 0.02, 96.1% of the time to those in external spectroscopic catalogs. We measure the photometric counterpart fraction in deep ancillary Hyper Suprime-Cam imaging and find that only 55.5% of the LAE sample has an r-band continuum counterpart down to a limiting magnitude of r~26.2 mag (AB) indicating that an LAE search of similar sensitivity with photometric pre-selection would miss nearly half of the HETDEX LAE catalog sample. Data access and details about the catalog can be found online at http://hetdex.org/.Comment: 38 pages, 20 figures. Data access and details about the catalog can be found online at http://hetdex.org/. A copy of the catalogs presented in this work (Version 3.2) is available to download at Zenodo doi:10.5281/zenodo.744850

Um acervo, uma coleção e três problemas: a Coleção Jacques Pilon da Biblioteca da FAUUSP

Este artigo examina a constituição do Acervo de Projetos de arquitetura da Biblioteca da Faculdade de Arquitetura e Urbanismo da Universidade de São Paulo (FAUUSP), o tratamento da Coleção Jacques Pilon e os rendimentos do projeto de arquitetura como fonte documental a partir de três questões interligadas: a constituição do campo arquitetônico no Brasil; a história de São Paulo e sua arquitetura; e a contribuição dos arquitetos estrangeiros para a construção da cidade entre 1930 e 1960. A partir da abordagem de novas e velhas fontes de pesquisa, procura-se articular a história da arquitetura com outros campos do conhecimento nem sempre a ela relacionados, mas que juntos podem contribuir para uma leitura mais complexa da produção arquitetônica e para os esforços de revisão da historiografia da arquitetura moderna no Brasil.This article examines the establishment of the Archive of Projects of the Library of the Faculty of Architecture and Urbanism of the University of Sao Paulo (FAUUSP), the treatment of the Collection Jacques Pilon and the architectural design as a documentary source from three interconnected issues: the constitution of the architectural field in Brazil; the history of São Paulo and its architecture and the contribution of foreign architects to build the city between the years 1930 and 1960. From the approach of new and old sources of research, this article seeks to articulate the History of Architecture with other fields of knowledge not always related to it, but that together it can contribute to a more complex reading of architectural production and to efforts of reviewing the historiography of modern architecture in Brazil

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| &lt; 0.03 at 95% confidence level. [Figure not available: see fulltext.