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Cycles sédimentaires dans le système turbiditique du Congo : nature et origine ArchiMer
Picot, Marie.
Turbidite systems are huge submarine sedimentary fans located off rivers, at the foot of the continental slope. They constitute the most distal terrigeneous deposits of a fluvial system. Their internal structure, defined as a stacking of channel-levee systems, show architectural changes through time. Forcing factors of these architectural changesare still poorly understood, and the respective role of internal (related to the own functioning of the system) or external forcing factors (climate, seal-level variations, tectonics) remains debated. To better understand the role of these controlling factors, a detailed study of the Congo system architecture was carried out. This study was conducted as part of the Reprezaï research project (Ifremer/IUEM, since...
Tipo: Text Palavras-chave: Système turbiditique; Congo; Quaternaire terminal; Cycles sédimentaires; Progradation et rétrogradation; Avulsion; Lobes; Paléoclimat; Sismique; Carottes sédimentaires; Turbidite system; Congo; Quaternary; Sedimentary cycles; Progradation; Retrogradation; Avulsion; Lobes; Paleoclimate; Geophysical data; Sedimentary cores Thèse.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00312/42275/41599.pdf
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Morphological aspects of the testes of 18 species of terrestrial of Heteroptera from Northwestern São Paulo (Brazil) Biota Neotropica
Gomes,Mariana Oliveira; Castanhole,Márcia Maria Urbanin; Souza,Hederson Vinicius de; Murakami,Aline Sumitani; Firmino,Tatiani Seni de Souza; Saran,Priscila Samara; Banho,Cecilia Artico; Monteiro,Leticia da Silva; Silva,Jocielly Cristina Pereira da; Itoyama,Mary Massumi.
The Heteroptera are known for their odour, for being pests or for being disease carriers. However, they are still not extensively studied, perhaps because they form a very large group. Therefore, with the aim of enhancing the knowledge of the morphology of the testes of this insect order, we collected and analysed 18 species of terrestrial Heteroptera from the northwestern part of São Paulo. The analysis of these species revealed some differences between the testicles of these species, including their shape (elongated, oval, round or pecten), the morphology of the testicular lobes (elongated and paired side by side or united in a single region), the colours of the peritoneal sheath that surrounds the lobes (red, orange, yellow or translucent), and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Testicles; Peritoneal sheath; Lobes.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300131
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Reinterpretation of some tentacular structures in actinodendronid and thalassianthid sea anemones (Cnidaria: Actiniaria) Naturalis
Ardelean, A..
The oral disc of an actinodendronid sea anemone is drawn out into a variable number of highly branched tentacular structures that make the anemone resemble a tree. These tentacular structures have been considered either lobes or branched tentacles. The term lobe has been applied to various structures of the oral disc in sea anemones; I distinguish between temporary lobes, permanent marginal lobes, and permanent tentacular lobes. I use the number of mesenterial pairs involved in a tentacular structure as evidence that tentacular structures in Actinodendronidae should be considered tentacles, not lobes. According to this interpretation, actinodendronids have only one tentacle communicating with each intermesenterial space, both endocoels and exocoels. The...
Tipo: Article / Letter to the editor Palavras-chave: Branched tentacles; Lobes; Tentacles; Sea anemones; Terminology; Actinodendronidae; Actinodendron; Thalassianthidae; Heterodactyla; Thalassianthus; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220291
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