1000 resultados para Félix de Cantalicio, Santo, m. ca. 1587
Resumo:
A remarkable new species of pulmonate land snail was found in the collection of the Senckenberg Forschungninstitut und Naturmuseum Frankfurt (Frankfurt am Main, Germany) and is described here as Leiostracus faerie sp. nov. It can be easily identified by its small and translucent shell with fine axial light brown bands and its protoconch sculpture. It was collected in the Rio Doce ("Doce River") region in EspÃrito Santo, Brazil, an area known for a high diversity and endemicity of land snails. This discovery shows how little this fauna is known and reinforces the importance of museum collections in the study of biodiversity and conservation.
Resumo:
São apresentados os resultados de investigações sobre a distribuição dos planorbÃdeos e a prevalência da xistosomose mansoni por municÃpios do Estado do EspÃrito Santo. Foram ncontradas 9 espécies de planorbÃdeos, pertencentes a 3 gêneros: Biomphalaria glabrata, B. schrammi, B. straminea e B. tenagophila; Drepanotrema anatinum, D. cimex, D. depressissimum e D. lucidum; e Plesiophysa ornata. A área endêmica, delimitada por um levantamento preliminar por microrregião homogênea (1975) e por um inquérito por bacia hidrográfica em 15% dos escolares de 7-14 anos (1978 -80), compreende pelo menos 18 municÃpios ao longo da fronteira com os Estados de Minas Gerais e da Bahia. Das espécies de planorbÃdeos, a mais freqüente foi a Biomphalaria tenagophila, encontrada em 44 dos 53 municÃpios. Em seguida vieram o Drepanotrema lucidum (25 municÃpios), a Biomphalaria glabrata (23), a B. schrammi (16), a B. straminea (120, o Drepanotrema cimex (8), o D. anatinum (6), o D. depressissimum (5) e a Plesiophysa ornata (1). A presença da B. glabrata coincide com a transmissão da xistosomose, não estando ainda bem esclarecido o papel da B. tenagophila, que parece ser a espécie vetora na área da Grande Vitória, A B. straminea ocorre somente nos municÃpios com nÃveis significativos de endemicidade, mas sua participação na transmissão ainda não foi comprovada. As áreas de maior prevalência da xistosomose estão localizadas nas microrregiões homogêneas de Colatina, Colonial Serrana EspÃrito-Santense, Alto São Mateus e Vertente Oriental do Caparaó. A comparação entre os resultados desta investigação e os de levantamento anteriores permite afirmar que, se os Ãndices de prevalência obtidos correspondem à realidade, a xistosomose mansoni expandiu-se consideravelmente no EspÃrito Santo no decurso dos últimos 30 anos.
Resumo:
Biografia del Doctor Fèlix Serratosa, quÃmic, humanista i mestre de generacions d’universitaris. Els seus treballs de sÃntesi orgà nica han estat reconeguts internacionalment.
Resumo:
Dos flebótomos atraÃdos pelo Proechimys iheringi numa área onde esse roedor foi achado naturalmente infectado por Leishmania mexicana ssp., 98,1% foram Lutzomyia gasparviannai, o que sugere que essa espécie não antropofÃlica seja o transmissor entre os roedores mas não habitualmente ao homem.
Resumo:
Em área endêmica de leishmaniose tegumentar no municÃpio de Viana, Estado do EspÃrito Santo, investigou-se a ocorrência de infecção natural por Leishmania em animais domésticos, procurando-se relacionar a presença dos animais infectados com a ocorrência da doença humana. No perÃodo de três semanas foram examinados 186 cães, dos quais 32 (17,2%) estavam parasitados. Durante um ano surgiram, entre os moradores da área, 11 casos novos de leishmaniose tegumentar. Três amostras humanas de Leishmania e 27 amostras isoladas de cães foram identificadas como L. braziliensis braziliensis. Observou-se nÃtida relação entre a presença de cães infectados e a ocorrência de novos casos humanos da doença. Supõe-se que a moléstia esteja se comportando na área como uma zoonose mantida pelos cães domésticos.
Resumo:
A Ca-stimulated ATPase activity (pH 9.5) associated with the tegumental membrane enriched (TME) fraction of Schistosoma mansoni adults was partially inhibited by NAP-taurine or by increasing concentrations of chlorpromazine; endogenous calmodulin was found associated with the TME fraction. A similar activity (pH 8.6) was histochemically visualized whithin the tegument of fixed worms on the cytoplasmic leaflet of both the doubel surface membrane and the basement membrane; this reaction was inhibited by 1 µM chloropromazine and it was also observed on the inner side of double membrane vesicles present in the TME fraction. No ATPase activity could be seen at alkaline pH with added Mg or Na/K ions. Without ATP, the addition of external Ca to the fixed worms induced the appearance of lead precipitates on the tegumental discoid bodies; this reaction was inhibited by molybdate and not by chlorpromazine. The intrategumentary regulation of calcium by the systems described and the possible use of phenothiazines against schistosimes are discussed.
Resumo:
One hundred senventy-five species of marine mollusks have been identified in the Expedition EspÃrito Santo I. Standing out the species Margarites olivaceus (Brown, 1827); Cyclostremiscus caraboboensis Weishord, 1962; Balcis gibba Folin, 1867; Triphora compsa (Dall, 1927); Henrya af. goldmani Bartsh, 1947 and Limaea subovata Jeffreys, 1876 as they have not been previously assigned to Brazil. The analysis of the geographical distribution patterns points out the dominance of the species with thermophiles affinities. This situation evidences the importance of the Brazilian Current in the maintanance of the biogeographical structure of the studied region. However, it is the analysis of the cryophiles species that shows the Cabo Frio region as an ecological filter quite more permeable to the species with thermophile affinities than to the cryophiles ones. The existence of this barrier and the endemism rate (4.27%) characterize the region that extends from the south of Cabo Frio as a transition between the two patterns cited above. Therefore they do not corroborate in malacological parameters the proposition made by Palacio (1982) for the individualization of the Paulista Province.
Resumo:
The present work is a preliminary contribution to the knowledge of the fauna, with regard to the aspect of mullusks, on the coast located in the city of Piúma (40º45' lat. L and 20º50' long. W) EspÃrito Santo State, aiming a better comprehension of the distribution and ecology of mollusks in the South Atlantic. Collections were made in planned sporadic periods (May/29 to 31 of 1984; May/04-05 and September/13-16 of 1985; March/26-28; October/30-31 and November/01-02 of 1986), in the intertidal zones in the area, in each chosen region and in presence of an 0.0 tide. The material identified by comparative analysis of the morphologic variability presented a total of 41 generic taxa (52.56%) and 44 specific taxa (52.38%) of the class Gastropoda, 36 generic taxa (46.15%) and 39 specific taxa (46.43%) of the class Bivalvia and 1 generic taxa (1,28%) and 1 specific taxa (1.19%) of the class Scaphopoda.
Resumo:
In paralel with several other epidemiologic and entomologic data of 19 Municipalities of EspÃrito Santo State, Brazil, the feeding pattern of 222 Triatoma vitticeps is studied through precipitin tests. Very high levels of natural infection with Trypanosoma cruzi are observed in adult insects, in contrast with the abscence or minimum degrees of infection among nymphs and human individuals. The precipitin tests showed the contact of the insects with multiple blood sources, chiefly human and birds, followed by rodents and marsupials. The data suggest that T. vitticeps in spite of being highly antropophilic, become infected by T. cruzi in sylvatic ambient and occasionally invade houses. The species doesn't seem to be - at least until now - a good vector in the domestic cycle of Chagas' disease. Several factors seem to be involved in this conclusion, mainly the low density of the insect in the houses, its hardness to coloniza them, its slowness concerning to suction and defecation and possibly its low susceptibility to different T. cruzi strains.