954 resultados para Art criticism -- History -- 20th century


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Introduction.--Quis desiderio ...?--Ramblings in Cheapside.--The aunt, the mieces and the dog.--How to make the best of life.--The sanctuary of Montrigone.--A medieval girl school.--Art in the valley of Saas.--Thought and language.--The deadlock in Darwinism.

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Mode of access: Internet.

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Highlights five influential U.S. scholars who helped shape understandings of South America in the early 20th century, showing how Latin American Studies began and how academic knowledge affected foreign policy and helped build an informal American empire. This title was made Open Access by libraries from around the world through Knowledge Unlatched.

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Photocopy.

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[Conceptual Sketch of Site Plan], untitled. Ink sketch with green and yellow marker coloring on tracing paper, 12 1/4 x 22 inches [from photographic copy by Lance Burgharrdt]

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[Conceptual Sketches of Site Plan], untitled. Blue ink sketches on graph paper, initialed, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

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[Conceptual Sketch], untitled. Ink sketch with green and yellow marker coloring on tracing paper, 12 1/4 x 25 inches [from photographic copy by Lance Burgharrdt]

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[Conceptual Sketch], untitled. Black ink sketch with yellow marker coloring on tracing paper, 12 1/4 x 22 inches [from photographic copy by Lance Burgharrdt]

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[Conceptual Sketch], untitled. Black ink sketch with yellow marker coloring on graph paper, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]

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[Schematic Design Drawing of Elevation], untitled. Black and blue ink sketch with gray and brown marker coloring on one sheet of tracing paper taped to black-line print, 12 3/4 x 36 inches [from photographic copy by Lance Burgharrdt]

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"In this autobiography, [the author] tells us the events of his life over the past fifty years. It is, too, a brief history of Los Angeles from the turn of the century--certainly, as far as the Negroes in Los Angeles are in the picture"--Preface. Jamaican-born Somerville became a Los Angeles dentist deeply involved in the NAACP.

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Mode of access: Internet.

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Both long-term environmental changes such as those driven by the glacial cycles and more recent anthropogenic impacts have had major effects on the past demography in wild organisms. Within species, these changes are reflected in the amount and distribution of neutral genetic variation. In this thesis, mitochondrial and microsatellite DNA was analysed to investigate how environmental and anthropogenic factors have affected genetic diversity and structure in four ecologically different animal species. Paper I describes the post-glacial recolonisation history of the speckled-wood butterfly (Pararge aegeria) in Northern Europe. A decrease in genetic diversity with latitude and a marked population structure were uncovered, consistent with a hypothesis of repeated founder events during the postglacial recolonisation. Moreover, Approximate Bayesian Computation analyses indicate that the univoltine populations in Scandinavia and Finland originate from recolonisations along two routes, one on each side of the Baltic. Paper II aimed to investigate how past sea-level rises affected the population history of the convict surgeonfish (Acanthurus triostegus) in the Indo-Pacific. Assessment of the species’ demographic history suggested a population expansion that occurred approximately at the end of the last glaciation. Moreover, the results demonstrated an overall lack of phylogeographic structure, probably due to the high dispersal rates associated with the species’ pelagic larval stage. Populations at the species’ eastern range margin were significantly differentiated from other populations, which likely is a consequence of their geographic isolation. In Paper III, we assessed the effect of human impact on the genetic variation of European moose (Alces alces) in Sweden. Genetic analyses revealed a spatial structure with two genetic clusters, one in northern and one in southern Sweden, which were separated by a narrow transition zone. Moreover, demographic inference suggested a recent population bottleneck. The inferred timing of this bottleneck coincided with a known reduction in population size in the 19th and early 20th century due to high hunting pressure. In Paper IV, we examined the effect of an indirect but well-described human impact, via environmental toxic chemicals (PCBs), on the genetic variation of Eurasian otters (Lutra lutra) in Sweden. Genetic clustering assignment revealed differentiation between otters in northern and southern Sweden, but also in the Stockholm region. ABC analyses indicated a decrease in effective population size in both northern and southern Sweden. Moreover, comparative analyses of historical and contemporary samples demonstrated a more severe decline in genetic diversity in southern Sweden compared to northern Sweden, in agreement with the levels of PCBs found.

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Este trabajo pretende reconstruir la genealogía de la autocrítica al interior de los sectores intelectuales de la izquierda argentina a partir del itinerario de Oscar Terán, uno de sus principales protagonistas e historiadores. Se revisa su principal obra historiográfica y sus intervenciones en revistas político-culturales a fines de delimitar rupturas y continuidades en la construcción de un relato que da cuenta del proceso de radicalización política en Argentina. Así, veremos cómo dicho relato se desplaza desde una lectura contemplativa en los años 1980 hacia una operación de clausura en los años 1990 y principios del presente siglo