Encontrados 15 documentos, a visualizar página 1 de 2
Adaptation to different salinities exposes functional specialization in the int...
Gregório, SÃlvia F.; Carvalho, Edison Samir Mascarelhas; Encarnação, Sandra; Wilson, J.; Power, Deborah; Canario, Adelino V. M.; Fuentes, J.The processing of intestinal fluid, in addition to a high drinking rate, is essential for osmoregulation in marine fish. This study analyzed the long-term response of the sea bream (Sparus aurata L.) to relevant changes of external salinity (12, 35 and 55ï€ p.p.t.), focusing on the anterior intestine and in the less-often studied rectum. Intestinal water absorption, epithelial HCO3– secretion and gene express...
Estimating submarine groundwater discharge into the Ria Formosa lagoon, Portuga...
Scholten, J.; Rocha, C.; Wilson, J.; Pham, M.; Veiga-Pires, C.; Aníbal, J.The Ria Formosa lagoon is the most important resource for the fishing, aquaculture and tourism industries of southern Portugal. The lagoon expands across an area of approximately 100 km²and about half of its area is intertidal, covered with muddy sand and saltmarshes. The lagoon is shallow (2 m average depth) with semidiurnal tides at amplitudes between 1.3 m and 3 m (during neap and spring tides respectively)...
Using Radium isotopes to evaluate the mixing timeline and relative age of water...
Rocha, C.; Scholten, J.; Wilson, J.; Veiga-Pires, C.The Ria Formosa wetland system is classified as a leaky coastal lagoon and covers approximately 100 km2 of the South of Portugal, with roughly 50% being intertidal. Its hinterland is set in an arid region and on a coastal plain subject to intensive agriculture since the 50’s. In spite of high exchange coefficients with the coastal ocean (50 and 75% at neap and spring tides, respectively) and the annual total po...
Ecosystem-level impact signals of groundwater borne continental nitrate transfe...
Rocha, C.; Veiga-Pires, C.; Wilson, J.; Aníbal, J.; Monteiro, José Paulo; Scholten, J.Recognition of the role played by SGD in the transfer of contaminants to near shore marine enviroments underscores the need for tools and aproaches that will facilitate regional assessments of its environmental impact.
Austrolebias paucisquama (Cyprinodontiformes : Rivulidae), a new species of ann...
Santos, Juliano Ferrer dos; Malabarba, Luiz Roberto; Costa, Wilson J. E. M.Austrolebias paucisquama, uma nova espécie de peixe anual é descrita da bacia do rio Vacacaí, tributário do rio Jacuí, Rio Grande do Sul, Brasil. A nova espécie pertence ao grupo Austrolebias alexandri, que apresenta duas apomorfias, pontos azuis claros e nadadeiras peitorais cinza escuro nos machos. Distingue-se das outras espécies do grupo pelo reduzido número de escamas ao redor do pedúnculo caudal (12) e pe...
The occurrence of microdiamonds in Mesoproterozoic Chapada Diamantina intrusive...
Battilani,Gislaine A.; Gomes,Newton S.; Guerra,Wilson J.The origin of diamonds from Serra do Espinhaço in Diamantina region (State of Minas Gerais) and in Chapada Diamantina, Lençóis region (State of Bahia) remains uncertain, even taking into account the ample research carried out during the last decades. The lack of typical satellite minerals in both districts makes a kimberlitic source for these diamonds uncertain. In mid 18th century the occurrence of a metamorph...
Electrochemical studies on inert filler incorporated poly (vinylidene fluoride ...
Wilson,J.; Ravi,G.; Kulandainathan,M. AnbuThe ionic conductivity, thermal stability and lithium transference number have been investigated in composite polymer electrolytes (CPE) of poly(vinylidene fluoride - hexafluoropropylene) (PVDF-HFP) incorporating nano fillers of AlO[OH]n or gammaAl2O3, with LiClO4 as salt. The compatibility of the composite polymer electrolyte with lithium metal anode has also been studied. The effect of particle size on the co...
Capacidade predatória e aspectos biológicos de Chrysoperla externa (Hagen, 1861...
Maia,Wilson J. Mello e Silva; Carvalho,César Freire; Souza,Brígida; Cruz,Ivan; Maia,Terezinha J. A. FerreiraObjetivou-se estudar alguns aspectos biológicos, a capacidade predatória e a resposta funcional de larvas de Chrysoperla externa (Hagen) alimentadas com ninfas de segundo e terceiro ínstares do pulgão Rhopalosiphum maidis (Fitch), em cinco densidades. Os ensaios foram conduzidos em câmaras climatizadas reguladas a 25 ± 1ºC, UR de 70 ± 10% e fotofase de 12 horas. Para o estudo de biologia e capacidade predatória...
Influência da temperatura no desenvolvimento de Rhopalosiphum maidis (Fitch, 18...
Maia,Wilson J. Mello e Silva; Carvalho,César Freire; Cruz,Ivan; Souza,Brígida; Maia,Terezinha J. A. FerreiraO pulgão Rhopalosiphum maidis (Fitch) tem sido encontrado em todos os estádios de desenvolvimento do milho e na maioria dos municípios do Estado de Minas Gerais, e sua importância tem aumentado principalmente nas áreas onde se cultiva o milho "safrinha". Por isso, objetivou-se estudar a influência da temperatura sobre alguns aspectos biológicos das fases de ninfa e adulta desse afídeo em diferentes temperaturas...
Practical evaluation of hold-up for passive decoupling in distillation column
Sodré,C. H.; Wilson,J. A.; Jones,WDecisions made during the steady-state design of distillation columns have a large influence on the dynamic characteristics of the operating unit. Conventionally, steady-state design is often completed before dynamics and control issues are considered. Additional complexity in the active control system must as a result be used to compensate for any resulting shortcomings in dynamic performance. Here, our aim is...
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