Patterns of faunal change at an upper Cambrian trilobite extinction event, Nolichucky Formation, Tennessee and Virginia

During the Upper Cambrian there were three mass extinctions, each of which eliminated at least half of the trilobite families living in North American shelf seas. The Nolichucky Formation preserves the record of one of these extinction events at the base of the Steptoean Stage. Sixty-six trilobite collections were made from five sections In Tennessee and Virginia. The lower Steptoean faunas are assigned to one low diversity, Aphelaspis-dominated biofacies, which can be recognized in several other parts of North America. In Tennessee, the underlying upper Marjuman strata contain two higher diversity biofacies, the Coosella-Glaphyraspis Biofacies and the Tricrepicephalus-Norwoodiid Biofacies. At least four different biofacies are present in other parts of North America: the Crepicephalus -Lonchocephalus Biofacies, the Kingstonia Biofacies, the Cedaria Biofacies, and the Uncaspis Biofacies. A new, species-based zonation for the Nolichucky Formation imcludes five zones, three of which are new. These zones are the Crepicephalus Zone, the Coosella perplexa Zone, the Aphelaspis buttsi Zone, the A. walcotti Zone and the A. tarda Zone. The Nolichucky Formation was deposited within a shallow shelf basin and consists largely of subtidal shales with stormgenerated carbonate interbeds. A relative deepening is recorded In the Nolichucky Formation near the extinction, and is indicated In some sections by the appearance of shale-rich, distal storm deposits above a carbonate-rich, more proximal storm deposit sequence. A comparable deepening-upward sequence occurs near the extinction in the Great Basin of southwestern United States and in central Texas, and this suggests a possible eustatic control. In other parts of North America, the extinction IS recorded In a variety of environmental settings that range from near-shore to slope. In shelf environments, there is a marked decrease in diversity, and a sharp reduction in biofacies differentiation. Although extinctions do take place in slope environments, there IS no net reduction in diversity because of the immigration of several new taxa.

A Survey for Diclofop-Methyl Resistance in Italian Ryegrass from Tennessee and How To Manage Resistance in Wheat

Italian ryegrass resistance to diclofop has been documented in several countries, including the United States. The purpose of this research was to screen selected putative resistant populations of Italian ryegrass for resistance to the acetyl-CoA carboxylase (ACCase)-inhibiting herbicides diclofop and pinoxaden and the acetolactate synthase (ALS)-inhibiting herbicides imazamox, pyroxsulam, and mesosulfuron in the greenhouse and to use field experiments to develop herbicide programs for Italian ryegrass control. Resistance to diclofop was confirmed in eight populations from Tennessee. These eight populations did not show cross-resistance to pinoxaden. One additional population (R1) from Union County, North Carolina, was found to be resistant to both diclofop and pinoxaden. The level of resistance to pinoxaden of the R1 population was 15 times that of the susceptible population. No resistance was confirmed to any of the ALS-inhibiting herbicides examined in this research. Field experiments demonstrated PRE Italian ryegrass control with chlorsulfuron (71 to 94%) and flufenacet + metribuzin (84 to 96%). Italian ryegrass control with pendimethalin applied PRE or delayed preemergence (DPRE) was variable (0 to 85%). POST control of Italian ryegrass was acceptable with pinoxaden, mesosulfuron, flufenacet + metribuzin, and chlorsulfuron + flucarbazone (> 80%). Application timing and herbicide treatment had no effect on wheat yield, except for diclofop and pendimethalin treatments, in which uncontrolled Italian ryegrass reduced wheat yield.

Tennessee Williams e a censura em Portugal (1956-1972)

Colóquio Tennessee Williams, Universidade Nova de Lisboa.

Traduzir Teatro no Estado Novo: Gata em Telhado de Zinco Quente (1959), tradução de Sérgio Guimarães, do original Cat on a Hot Tin Roof (1955), de Tennessee Williams

À luz da viragem cultural dos Estudos de Tradução ocorrida nos anos 80 e tendo em conta a interdisciplinaridade abordada nos campos literário, cultural e histórico pela Manipulation School (Lefevere, Bassnett, Lambert, Hermans e Toury), na esteira de Itamar Even-Zohar com a Teoria dos Polissistemas (1979), a presente dissertação pretende analisar a tradução portuguesa da peça Cat on a Hot Tin Roof (1955), da autoria de Tennessee Williams, intitulada Gata em Telhado de Zinco Quente (1959), de Sérgio Guimarães. Este pode ser um caso representativo de como a tradução para teatro actua na cultura receptora numa perspectiva diatópica, antevendo a dimensão intercultural da tradução para o palco. É ao tradutor que cabe a tarefa de transferir a peça de um sistema linguístico e cultural para outro, conhecendo, se possível, o grau de representabilidade da mesma e o contexto cultural de chegada. Deste modo, é evidenciada a competência artístico-criativa do tradutor teatral que trabalha com o intuito de manter, fidus interpres, as intenções do autor da obra original. No período em que Cat on a Hot Tin Roof foi escrita, ensombrado pelo controlo sociopolítico do Macartismo nos E.U.A. e o contexto em que a tradução foi concretizada, sob a vigência da Ditadura de Salazar, a (auto)censura desempenha um papel fundamental ao moldar a produção literária nos dois sistemas culturais. Numa época em que, mais do que nos dias de hoje, traduzir consistia numa actividade subserviente e secundária, Vasco Morgado, detentor do monopólio de teatros em Lisboa encomendou a Sérgio Guimarães a tradução de uma peça de Tennessee Williams. Com base na teoria desenvolvida por Lawrence Venuti em The Translator’s Invisibility (1995), não é despiciente problematizar, neste estudo de caso, a invisibilidade do tradutor/mediador entre o texto e a representação, abordando simultaneamente as estratégias então necessárias para a peça ser aprovada e posta em cena.

Trilobites ordovícicos de la Puna Argentina: Taxonomía, bioestratigrafía, y paleobiogeografía

El Ordovícico en el Noroeste Argentino esta ampliamente distribuido tanto en el ámbito de Cordillera Oriental como en la Puna. Las unidades de ambos elementos morfoestructurales difieren en facies. En la Cordillera Oriental predominan los depósitos de plataforma mientras que en la Puna afloran depósitos marinos profundos. (...) Una rica fauna de trilobites del Cámbrico tardío-Ordovícico medio ha sido descrita de las unidades de Cordillera Oriental. En contraste, son pocas las referencias de trilobites para la Puna y se restringen a menciones de hallazgos sin descripciones ni ilustración del material. El reciente hallazgo de trilobites tremadocianos al oeste del Salar del Rincón y tremadocianos y arenigianos en Vega Pinato abre grandes expectativas para el estudio de estos invertebrados en esta región. El estudio taxonómico de un grupo fósil constituye la base fundamental para realizar posteriormente cualquier tipo de análisis, sea éste con respecto a aspectos biológicos como sus relaciones filogenéticas u otros de mayor interés para la geología como lo es el análisis bioestratigráficos y en muchas unidades constituyen, hasta el momento. los únicos elementos que permiten precisar sus edades y correlación. (...) Objetivos Generales: El presente plan de investigación tiene por objetivo confeccionar esquemas bioestratigráficos aplicables en la correlación de las diferentes secciones de las unidades ordovícicas de la Puna Argentina, los cuales estarán basados en un minucioso estudio taxonómico y biofacial de la fauna de trilobites. El conocimiento taxonómico y bioestratigráficos permitirá, además definir las afinidades biogeográficas de los trilobites de la Puna Argentina y establecer su relación en el contexto mundial. Los datos obtenidos serán de gran valor para efectuar comparaciones entre las distintas cuencas cambro-ordovícicas de Argentina y establecer sus relaciones paleogeográficas tanto con Gondwana como con Laurentia. El reconocimiento y delimitación de terrenos en la Puna será de fundamental importancia para proponer modelos de evolución geodinámica de Gondwana durante el Paleozoico.

New trilobites from the Maquoketa beds of Fayette county, Iowa / by Arthur Ware Slocom -- ; Oliver Cummings Farrington --

v.4:no.3(1913)

Mitologia i literatura a "Suddenly Last Summer" de Tennessee Williams: tot lluitant contra Venus i Èdip

The aim of this article is to analyze accurately the role played by two classical references, Venus and Oedipus, in Tennessee Williams¿s Suddenly Last Summer, in accordance with the usual nature of studies on Classical Tradition ¿Greek and Roman- and focusing in this case on the relationship between literature and mythology. It is thanks to Venus and Oedipus that the playwright succeeds in showing the magnitude of men¿s and women¿s tragedy, which from his point of view is simply that they have failed to see either kindness in the face of God or to feel his loving and fatherly providence.

Literature and Mythology in Tennessee Williams's "Suddenly Last Summer": Fighting against Venus and Oedipus

The aim of this article is to analyze accurately the role played by two classical references, Venus and Oedipus, in Tennessee Williams Suddenly Last Summer, in accordance with the usual nature of studies on Classical Tradition a Greek and Roman- and focusing in this case on the relationship between literature and mythology. It is thanks to Venus and Oedipus that the playwright succeeds in showing the magnitude of mens and womens tragedy, which from his point of view is simply that they have failed to see either kindness in the face of God or to feel his loving and fatherly providence.

Mitología y Literatura en "Suddenly Last Summer" de Tennessee Williams: luchando contra Venus y Edipo

The aim of this article is to analyze accurately the role played by two classical references, Venus and Oedipus, in Tennessee Williams's Suddenly Last Summer, in accordance with the usual nature of studies on Classical Tradition -Greek and Roman- and focusing in this case on the relationship between literature and mythology. It is thanks to Venus and Oedipus that the playwright succeeds in showing the magnitude of men¿s and women¿s tragedy, which from his point of view is simply that they have failed to see either kindness in the face of God or to feel his loving and fatherly providence.

Tennessee Williams's Cat on a hot tin roof or the dramatic aptitudes of the goddess Diana

The aim of this article is to show which are the dramatic "yields" of the inclusion of the reference to the goddess Diana in Tennessee Williams's Cat on a Hot tin Roof. In the author's opinion, it does not deal simply with a meaningful reference; on the contrary, the accurate analysis of Williams's text proves that it is a true nuclear and cohesive element of the whole drama.