908 resultados para Celtic literature


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Eterio Pajares, Raquel Merino y José Miguel Santamaría (eds.)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Eterio Pajares, Raquel Merino y José Miguel Santamaría (eds.)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This literature search identifies a majority of the publications in the period 1880-1980 concerned with the marine gastropod, Thais haemastomafloridmul (Conrad). The southern oyster drill is an economically important oyster predator in the western Atlantic and Gulf of Mexico littoral. Major contributions of each paper to our knowledge of the drill's biology are briefly categorized. Hitherto unpublished research by the author on the snail's biology is documented. (PDF file contains 15 pages.)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Phosphorus removal by wetlands and basins in Lake Tahoe may be improved through designing these systems to filter storm water through media having higher phosphorus removal capabilities than local parent material. Substrates rich in iron, aluminum and calcium oftentimes have enhanced phosphorus removal. These substrates can be naturally occurring, byproducts of industrial or water treatment processes, or engineered. Phosphorus removal fundamentally occurs through chemical adsorption and/or precipitation and much of the phosphorus can be irreversibly bound. In addition to these standard media, other engineered substrates are available to enhance P removal. One such substrate is locally available in Reno and uses lanthanum coated diatomaceous earth for arsenate removal. This material, which has a high positive surface charge, can also irreversibly remove phosphorus. Physical factors also affect P removal. Specifically, specific surface area and particle shape affect filtration capacity, contact area between water and the surface area, and likelihood of clogging and blinding. A number of substrates have been shown to effectively remove P in case studies. Based upon these studies, promising substrates include WTRs, blast furnace slag, steel furnace slag, OPC, calcite, marble Utelite and other LWAs, zeolite and shale. However, other nonperformance factors such as environmental considerations, application logistics, costs, and potential for cementification narrow the list of possible media for application at Tahoe. Industrial byproducts such as slags risk possible leaching of heavy metals and this potential cannot be easily predicted. Fly ash and other fine particle substrates would be more difficult to apply because they would need to be blended, making them less desirable and more costly to apply than larger diameter media. High transportation costs rule out non-local products. Finally, amorphous calcium products will eventually cementify reducing their effectiveness in filtration systems. Based upon these considerations, bauxite, LWAs and expanded shales/clays, iron-rich sands, activated alumina, marble and dolomite, and natural and lanthanum activated diatomaceous earth are the products most likely to be tested for application at Tahoe. These materials are typically iron, calcium or aluminum based; many have a high specific surface area; and all have low transportation costs. (PDF contains 21 pages)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Much of fish consumed by the poor are caught by household members and traded in local markets. These fish are rarely or poorly included in national statistics, and it is therefore difficult to estimate precisely the real contribution of fish to the rural poor households. This report is the first global overview of the role played by fish in improving nutrition. Fish consumption patterns of the poor, the nutritional value of fish, and small-scale fisheries and aquaculture activities are considered. It also highlights the gap in knowledge where more research is needed.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The need to develop techniques that can make the male grow faster in many species of fish as well as the female in some other species cannot be over-emphasized. Monosex culture of the faster growing sex can increase production if the method is reliable. The use of such techniques as manual sexing, sterilisation, hybridization, gynogenesis, androgenesis polyploidy and sex-reversal can provide solutions or partial solutions to the problems associated with sexual difference, sexual maturation and unwanted reproduction

Relevância:

20.00% 20.00%

Publicador:

Resumo:

An overview is provided of the literature of socio-economic relevance to the fisheries of Lake Victoria. It covers the following areas: marketing studies; management; changes to the structure of the fishery; and, base-line studies. The bibliography provides a guide to the more important documents on Lake Victoria's socio-economy and includes a total of 177 references

Relevância:

20.00% 20.00%

Publicador:

Resumo:

A figura da mulher ocupa significativo papel nas novelas de cavalaria do Ciclo Bretão. Emergindo como um elemento que traz liga às narrativas do lendário artúrico, constitui-se adjuvante essencial e multifacetada na construção dos episódios, numa interação constante com o masculino representado, principalmente, pelos cavaleiros. O Medievo traz à tona uma imagem matizada do feminino: a mulher socialmente vista sob clivagens diversas é refletida na literatura de cavalaria, conforme se pode verificar em A Demanda do Santo Graal. A presença feminina é importantíssima na narrativa, sobretudo na sua tensa relação com a cavalaria, agora ligada ao elemento religioso - monastizada, celibatária e ascética. O objetivo precípuo de nossos estudos é investigar de que maneira a fôrma sociocultural medieva, na qual foi moldada A Demanda do Santo Graal, se relaciona com seu substrato: as narrativas provindas da cosmovisão inerente ao imaginário céltico. Desta feita, nosso viés analítico verticaliza-se no elemento feminino presente na obra. Mais especificamente, toma-se por escopo a imagem de personagens que refletem a ideologia clerical moralístico-didatizante do século XIII, mas, sobretudo, resgata-se a imagem de personagens imbuídas de singular dualidade; ambigüidade esta que é marca não só do medievo paradoxal concernente ao feminino, mas também de personas literárias concebidas entre dois mundos, dois pólos ideológicos distintos. Em outros termos, fala-se de personagens que são seres ficcionais bifrontes: personagens localizadas entre as herdades e as identidades. Foram tomados como corpora de pesquisa os episódios em que estas damas polidimensionais aparecem e se tornam adjuvantes na ação literária, seja para cooperar, confundir ou prejudicar os cavaleiros que empreendem a sagrada, inefável e venturosa busca do Santo Cálix que dará fim às aventuras do Reino de Logres

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Arnoia, Arnoia, do escritor galego Xosé Luís Méndez Ferrín, recorre a estruturas literárias arquetípicas do Maravilhoso, ressignificando-as. O herói, diante de provações que vivencia, sai em viagem na busca de um lugar ideal, sendo acompanhado de um personagem e variados objetos mágicos. Um passeio pelas sendas de Arnoia, Arnoia obriga a reler criticamente elementos de construção literária que retomam a tradição mítica, em especial a céltica medieval, uma vez que a literatura galega tem recorrido, em muito, à cultura celta para expressar o seu imaginário. Arnoia, Arnoia traz para a contemporaneidade variados elementos próprios do Maravilhoso, valendo-se deles para construir novos sentidos. Dessa maneira, o insólito, pacificamente esperado e mesmo demandado no Maravilhoso, surpreende na narrativa ferriniana

Relevância:

20.00% 20.00%

Publicador: