893 resultados para Chase, Salmon P. (Salmon Portland), 1808-1873.


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Epitheliocystis is an infectious disease affecting gills and skin of various freshwater and marine fishes, associated with high mortality and reduced growth of survivors. Candidatus Piscichlamydia salmonis and Clavochlamydia salmonicola have recently been identified as aetiological agents of epitheliocystis in Atlantic Salmon. In addition, several other members of the Chlamydiales order have been identified in other fish species. To clarify the pathogenicity of Chlamydia-like organisms towards fishes, we investigated the permissivity of two fish cell lines, EPC-175 (Fathead Minnow) and RTG-2 (rainbow trout) to three Chlamydia-related bacteria: Waddlia chondrophila, Parachlamydia acanthamoebae and Estrella lausannensis. Quantitative PCR and immunofluorescence demonstrated that W. chondrophila and, to a lesser extent, E. lausannensis were able to replicate in the two cell lines tested. Waddlia chondrophila multiplied rapidly in its host cell and a strong cytopathic effect was observed. During E. lausannensis infection, we observed a limited replication of the bacteria not followed by host cell lysis. Very limited replication of P. acanthamoebae was observed in both cell lines tested. Given its high infectivity and cytopathic effect towards fish cell lines, W. chondrophila represents the most interesting Chlamydia-related bacteria to be used to develop an in vivo model of epitheliocystis disease in fishes.

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Photocatalytic materials can minimize atmospheric pollution by decomposing certain organic and inorganic pollutants using sunlight as an energy source. In this paper, the development of a methodology to measure the photocatalytic potential of mortar containing TiO2 nanoparticles is reported. The results indicate that up to 40% of NOx can be degraded by Portland cement mortar containing 30-50% of TiO2, which validates the method developed for evaluating the photocatalytic potential of materials.

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Kirjallisuusarvostelu

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Min forskning hör till omrÃ¥det militärhistoria. Undersökningen har en dubbel infallsvinkel, den krigförande arméns och det krigsdrabbade lokalsamhällets. Ã… ena sidan studerar jag lokalsamhället som en logistisk resurs under finska kriget 1808-09, Ã¥ andra sidan ser jag ¥ de materiella skador, krigsskador, som drabbade lokalsamhället. Den logistiska synvinkeln lyfts fram i avhandlingen. Beträffande krigsskadorna under finska kriget är det frÃ¥ga om grundforskning, eftersom det inte tidigare har undersökts hur krigsskadorna fördelade sig inom rikets östra del. Det har ocksÃ¥ saknats en uppskattning om krigsskadornas storlek. TillgÃ¥ngen till även internationellt unika källor har erbjudit möjligheten att ge en exceptionellt detaljerad bild av de förluster som kriget förorsakade lokalsamhället. Krigsskadorna har undersökts i huvudsak inom finska krigets tyngdpunktsomrÃ¥de, d.v.s. Vasa län. För en djupanalys har jag valt tvÃ¥ socknar, Kuortane och Närpes, i vilka krigsskadorna var störst inom länet. Krigsskadorna i tyngdpunktsomrÃ¥det var främst kopplade till de ryska truppernas logistik. Förutsättningarna för lokalsamhällets materiella välstÃ¥nd var i stort bundna till hur underhÃ¥llet organiserades i det resursfattiga krigsomrÃ¥det. Den näst viktigaste orsaken till krigsskadorna var de ryska truppernas hämndaktioner ¥ grund av den beväpnade folkresningen. Tidigare forskning har inte tillräckligt lyft fram det möjliga sambandet mellan krigsskadorna och befolkningskrisens uppkomst. Inom forskningen har det tidigare bristfälligt undersökts vilken betydelse underhÃ¥llets organisering hade för lokala resursfattiga omrÃ¥den under tidig modern tid, och för krigens slutresultat, och därmed även för staternas historia.

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O objetivo deste trabalho foi avaliar o efeito de cinco diferentes tipos de pré-tratamento na compatibilidade entre a madeira do Eucalyptus benthamii e o cimento Portland. A madeira foi pré-tratada com água fria, água quente, hidróxido de sódio, cloreto de cálcio ou hidróxido de cálcio. O grau de compatibilidade foi determinado através do estudo do calor de hidratação nas primeiras 24 h e pela resistência à compressão axial a³s 28 dias dos com³sitos formados por cimento e ³ de madeira na relação de peso de 13,3:1. A resistência à compressão axial a³s 28 dias também foi avaliada em com³sitos formados com cimento e partículas de madeira na relação 2,75:1. Os resultados dos testes feitos com a madeira em ³ indicaram que a adição de 3% de cloreto de cálcio é o tratamento mais eficiente para reduzir a capacidade de inibição da es©cie, enquanto o tratamento do ³ da madeira com hidróxido de cálcio afetou negativamente a compatibilidade. Entretanto, a combinação do aditivo cloreto de cálcio com partículas carbonatadas, pelo tratamento com hidróxido de cálcio, foi o que apresentou a maior resistência à compressão axial nos com³sitos feitos na relação cimento:madeira de 2,75:1. A madeira de Eucalyptus benthamii apresentou potencial para a fabricação de painéis madeira-cimento. O uso da metodologia de carbonatação das partículas em solução de hidróxido de cálcio também é viável como pré-tratamento, independentemente dos resultados apontados pelos métodos tradicionais de medição do grau de compatibilidade.

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Genetic abnormalities are critical prognostic factors for patients diagnosed with multiple myeloma (MM). This retrospective, multicenter study aimed to contribute with the genetic and clinical characterization of MM patients in a country with continental dimensions such as Brazil. Genetic abnormalities were assessed by cIg-fluorescent in situ hybridization (cIg-FISH) in a series of 152 MM patients (median age 55 years, 58.5% men). Overall, genetic abnormalities were detected in 52.7% (80/152) of patients. A 14q32 rearrangement was detected in 33.5% (n=51), including t(11;14), t(4;14) and t(14;16) in 18.4, 14.1, and 1% of cases, respectively. del(13q) was identified in 42.7% (n=65) of patients, of whom 49.2% (32/65) presented a concomitant 14q32 rearrangement. del(17p) had a frequency of 5.2% (n=8). del(13q) was associated with high plasma cell burden (≥50%, P=0.02), and del(17p) with advanced ISS stages (P=0.05) and extramedullary disease (P=0.03). t(4;14) was associated with advanced Durie-Salmon stages (P=0.008), renal insufficiency (P=0.01) and was more common in patients over 60 years old. This study reports similar frequencies of genetic abnormalities to most series worldwide, whereas the t(14;16) and del(17p), two high risk factors for newly diagnosed patients, exhibited lower frequencies. Our results expand the knowledge on the molecular features of MM in Brazil, a country where innovative therapies that could overcome a poor prognosis for some genetic abnormalities are not always available.