975 resultados para Motley, Thomas John, 1954-


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[ES] La cueva de Harregi (Aussurucq, Pays de Soule), excavada por P. Boucher entre 1954 y 1960, contiene testimonios prehistóricos del Paleolítico medio, superior y Postpaleolítico. En este artículo se analizan las evidencias de fauna e industria lítica asimiladas al Paleolítico medio. Importantes alteraciones estratigráficas postdeposicionales modificaron la original posición topográfica de la mayor parte de los depósitos musterienses. La composición global del lote industrial y de la serie faunística recuerdan intensamente a los controlados en los niveles musterienses Cj y Cjr de la muy cercana cueva de Gatzarria. Ello hace, bien plantear la posibilidad de una antigua organización estratigráfica y arqueológica de los depósitos musterienses como la de Gatzarria, lamentablemente perturbada por serios procesos hídricos erosivos, bien contemplar el hecho de una secuencia diferente, propia y, en cierta forma, contradictoria con la dinámica reconocida en Gatzarria.

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Rockfishes (Sebastes spp.) are an important component of North Pacific marine ecosystems and commercial fisheries. Because the rocky, high-relief substrate that rockfishes often inhabit is inaccessible to standard survey trawls, population abundance assessments for many rockfish species are difficult. As part of a large study to classify substrate and compare complementary sampling tools, we investigated the feasibility of using an acoustic survey in conjunction with a lowered stereo-video camera, a remotely operated vehicle, and a modified bottom trawl to estimate rockfish biomass in untrawlable habitat. The Snakehead Bank south of Kodiak Island, Alaska, was surveyed repeatedly over 4 days and nights. Dusky rockfish (S. variabilis), northern rockfish (S. polyspinis), and harlequin rockfish (S. variegatus) were the most abundant species observed on the bank. Backscatter attributed to rockfish were collected primarily near the seafloor at a mean height off the bottom of 1.5 m. Total rockfish backscatter and the height of backscatter off the bottom did not differ among survey passes or between night and day. Biomass estimates for the 41 square nautical-mile area surveyed on this small, predominantly untrawlable bank were 2350 metric tons (t) of dusky rockfish, 331 t of northern rockfish, and 137 t of harlequin rockfish. These biomass estimates are 5–60 times the density estimated for these rockfish species by a regularly conducted bottom trawl survey covering the bank and the surrounding shelf. This finding shows that bottom trawl surveys can underestimate the abundance of rockfishes in untrawlable areas and, therefore, may underestimate overall population abundance for these species.

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The variability in the supply of pink shrimp (Farfantepenaeus duorarum) postlarvae and the transport mechanisms of planktonic stages were investigated with field data and simulations of transport. Postlarvae entering the nursery grounds of Florida Bay were collected for three consecutive years at channels that connect the Bay with the Gulf of Mexico, and in channels of the Middle Florida Keys that connect the southeastern margin of the Bay with the Atlantic Ocean. The influx of postlarvae in the Middle Florida Keys was low in magnitude and varied seasonally and among years. In contrast, the greater postlarval influx occurred at the northwestern border of the Bay, where there was a strong seasonal pattern with peaks in influx from July through September each year. Planktonic stages need to travel up to 150 km eastward between spawning grounds (northeast of Dry Tortugas) and nursery grounds (western Florida Bay) in about 30 days, the estimated time of planktonic development for this species. A Lagrangian trajectory model was developed to estimate the drift of planktonic stages across the SW Florida shelf. The model simulated the maximal distance traveled by planktonic stages under various assumptions of behavior. Simulation results indicated that larvae traveling with the instantaneous current and exhibiting a diel behavior travel up to 65 km and 75% of the larvae travel only 30 km. However, the eastward distance traveled increased substantially when a larval response to tides was added to the behavioral variable (distance increased to 200 km and 85% of larvae traveled 150 km). The question is, when during larval development, and where on the shallow SW Florida shelf, does the tidal response become incorporated into the behavior of pink shrimp.

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A presente pesquisa trata da análise da fundação da Neurologia. A maioria das obras que abordam o assunto a partir de uma perspectiva histórica, sobretudo, aquelas que privilegiam uma visão positivista, para a qual a investigação caminharia em direção a um ponto estático, tendem a alcançar o médico inglês seiscentista, Thomas Willis, como o inconteste precursor dessa já estabelecida especialidade médica. Nossa proposta é a de desconstruir essa ideia. A nosso ver, a historicidade do discurso científico estaria sempre em constante expansão e também em uma contínua transformação, pois diferentemente do ideal positivista, o instaurador do que Foucault designava como cientificidade não seria o descobridor de um objeto dado desde sempre, na medida em que seria enganoso supor uma história natural de um objeto cultural o objeto da história das ciências. Resta-nos, portanto, tentar compreender o sentido em que Willis funda o que ele mesmo denominava Doutrina dos Nervos. Entendemos que Willis instituiu um novo arquivo audiovisual, ou seja, uma nova articulação entre o visível e o enunciável, no que tange aos nervos. Propomos, enfim, que no horizonte da fundação a nova imbricação entre forma de representação e forma de vida emerge no mesmo processo em que Willis se consagra como um autor médico e cientista dos nervos.

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O trabalho tem por objetivo articular uma defesa da teoria de justiça distributiva de John Rawls, considerando-se, para tal, as mudanças que o autor efetuou em sua teoria de justiça como equidade. Assim, a pesquisa tomará como base não somente o critério de justiça distributiva que se consolidou em Uma Teoria de Justiça, através do princípio da diferença, mas também avaliará de que forma este ideal continua presente nos textos posteriores do autor: O Liberalismo Político e O Direito dos Povos. Para tal, o estudo retomará as críticas cosmopolitas à proposta de internacionalização da teoria de justiça como equidade e, à luz destas, apresentará uma defesa do projeto de Rawls, evidenciando elementos do mesmo que estão alinhados ao projeto de justiça distributiva e sugerindo que sua proposta teórica é coerente com as premissas de Uma Teoria de Justiça, apesar de o princípio da diferença não estar presente entre os princípios fundamentais que devem ser estabelecidos entre os povos. Logo, trata-se também de uma proposta interpretativa que se vincula à compreensão (minoritária) de que as mudanças teóricas efetuadas por Rawls em sua teoria não a tornaram incompatível com seu projeto originário estabelecido em Uma Teoria de Justiça.

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Esta pesquisa faz parte do eixo temático Educação e Cidadania, em sua linha de pesquisa Produção Social do Conhecimento, do Mestrado em Educação da Universidade do Estado do Rio de Janeiro - UERJ. É uma pesquisa bibliográfica. Trata de um estudo sobre a educação na Modernidade. Analisa três correntes do pensamento pedagógico dos séculos XVII e XVIII, que tiveram profunda repercussão em todos os sistemas educacionais do mundo ocidental, capaz de influenciar pedagogos e filósofos da educação na elaboração de propostas para a educação Moderna. Traz uma análise do pensamento educacional dos religiosos católicos jesuítas, de John Locke e de Jean-Jacques Rousseau, apontando visões pedagógicas particulares, muitas vezes antagônicas. Esboça uma síntese dos principais ideais dessas correntes de pensamento, que, com certeza iluminaram a produção do conhecimento educacional da Modernidade e as concepções pedagógicas contemporâneas. Em síntese, busca resgatar os ideais dessas três correntes de pensamento pedagógico e a sua contribuição na elaboração do conhecimento educacional e na formação da cultura do mundo ocidental; entende ser a apropriação desse conhecimento uma das formas de se ajudar a pensar a questão da cidadania.

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John Otterbein Snyder (1867–1943) was an early student of David Starr Jordan at Stanford University and subsequently rose to become an assistant professor there. During his 34 years with the university he taught a wide variety of courses in various branches of zoology and advised numerous students. He eventually mentored 8 M.A. and 4 Ph.D. students to completion at Stanford. He also assisted in the collection of tens of thousands of fish specimens from the western Pacific, central Pacific, and the West Coast of North America, part of the time while stationed as “Naturalist” aboard the U.S. Fish Commission’s Steamer Albatross (1902–06). Although his early publications dealt mainly with fish groups and descriptions (often as a junior author with Jordan), after 1910 he became more autonomous and eventually rose to become one of the Pacific salmon, Oncorhynchus spp., experts on the West Coast. Throughout his career, he was especially esteemed by colleagues as “a stimulating teacher,” “an excellent biologist,” and “a fine man.

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Pacific hake, Merluccius productus, the most abundant groundfish in the California Current Large Marine Ecosystem (CCLME), is a species of both commercial significance, supporting a large international fishery, and ecological importance, connecting other species as both predator and prey. Coastal Pacific hake migrations are characterized by movements between northern summer feeding areas and southern winter spawning areas, with variations in annual abundance, distribution, and the extent of these movements associated with varying climate-ocean conditions. In general, warm (cool) years with enhanced (reduced) stratification and poleward (equatorward) transport are often related to good (poor) recruitment, increased (decreased) northward distribution, and reduced (enhanced) growth. However, the classic periodic pattern of annual migration and distribution may no longer be fully representative. Based on recent advances in the understanding of climate-ocean variability off the U.S. west coast, we hypothesize that the annual movements of Pacific hake are more responsive to climate-ocean variability than previously thought, and further, that changes observed in Pacific hake distributions may reflect long-term changes in climate-ocean conditions in the CCLME. Therefore, an updated model of these relations is key to effective monitoring and management of this stock, as well as to devising scenarios of future change in the CCLME as a result of climate variations. The current state of knowledge of the relationship between the Pacific hake and its environment is reviewed, highlighting emerging ideas compared to those of the past, and priorities for future research are suggested.

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John Nathan Cobb (1868–1930) became the founding Director of the College of Fisheries, University of Washington, Seattle, in 1919 without the benefit of a college education. An inquisitive and ambitious man, he began his career in the newspaper business and was introduced to commercial fisheries when he joined the U.S. Fish Commission (USFC) in 1895 as a clerk, and he was soon promoted to a “Field Agent” in the Division of Statistics, Washington, D.C. During the next 17 years, Cobb surveyed commercial fisheries from Maine to Florida, Hawaii, the Pacific Northwest, and Alaska for the USFC and its successor, the U.S. Bureau of Fisheries. In 1913, he became editor of the prominent west coast trade magazine, Pacific Fisherman, of Seattle, Wash., where he became known as a leading expert on the fisheries of the Pacific Northwest. He soon joined the campaign, led by his employer, to establish the nation’s first fisheries school at the University of Washington. After a brief interlude (1917–1918) with the Alaska Packers Association in San Francisco, Calif., he was chosen as the School’s founding director in 1919. Reflecting his experience and mindset, as well as the University’s apparent initial desire, Cobb established the College of Fisheries primarily as a training ground for those interested in applied aspects of the commercial fishing industry. Cobb attracted sufficient students, was a vigorous spokesman for the College, and had ambitions plans for expansion of the school’s faculty and facilities. He became aware that the College was not held in high esteem by his faculty colleagues or by the University administration because of the school’s failure to emphasize scholastic achievement, and he attempted to correct this deficiency. Cobb became ill with heart problems in 1929 and died on 13 January 1930. The University soon thereafter dissolved the College and dismissed all but one of its faculty. A Department of Fisheries, in the College of Science, was then established in 1930 and was led by William Francis Thompson (1888–1965), who emphasized basic science and fishery biology. The latter format continues to the present in the Department’s successor, The School of Aquatic Fisheries and Science.

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Charles Henry Gilbert (1859-1928) was a pioneering ichthyologist who made major contributions to the study of fishes of the American West. As chairman of the Department ofZoology at Leland Stanford Junior University in Palo Alto, Calif., during 1891-1925, Gilbert was extremely devoted to his work and showed little patience with those ofa different mindset. While serving as Naturalist-in-Charge of the U.S. Fish Commission Steamer Albatross during her exploratory expedition to the Hawaiian Islands in 1902, Gilbert engaged in an acrimonious feud with the ship's captain, Chauncey Thomas, Jr. (1850-1919), U.S.N., over what Gilbert perceived to be an inadequate effort by the captain. This essay focuses on the conflict between two strong figures, each operatingf rom different world views, and each vying for authority. Despite the difficulties these two men faced, the voyage of the Albatross in 1902 must be considered a success, as reflected by the extensive biological samples collected, the many new species of animals discovered, and the resulting publication of important scientific papers.

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Blue marlin, Makaira nigricans, tag and recapture data are summarized for 1954-1988. During this period, 8,447 fish have been tagged and only 30 (0.35 percent) have been returned. Results of the tagging program indicate that blue marlin not only travel considerable distances (7,OOO km from the U. S. Virgin Islands to the Ivory Coast of West Africa), but have remained at large for up to 8 years. Seasonal movements, however, are difficult to determine accurately.

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Five fishermen pulling net in Black Moss Tarn. This photo is part of a photo album that includes pictures from 1935 to 1954.

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Five men electrofishing in Gleaston Beck, Cumbria, UK. This photo is part of a photo album that includes pictures from 1935 to 1954.

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Two workers drilling on Hindburn Force, North West England, UK, making it more accesible for passing fish. This photo is part of a Photo Album that includes pictures from 1935 to 1954.