Caracterização Geoquímica de Jazigos Filonianos de Pb-Zn-(Ag) através do Estudo Estatístico dos Teores em Elementos Menores em Sulfuretos

Sulfides from Portuguese Vein-type Pb-Zn-(Ag) deposits were analysed with electronic microprobe. The results obtained for several minor elements present in galena and sphalerite were then statistically studied using principal components analysis (PCA). We intend to contribute to the geochemical characterization of these deposits through their contents in the minor elements. We hope to distinguish different subtypes of vein Pb-Zn-(Ag) deposits through the statistical analysis of minor elements present in sulfide

State of art: instruments for local development in SMEs and VSEs

Innovation in small firms and local development, with special attention to peripheral regions, is the topic of the bibliographic review presented in this report. Theorists of development issues use a few theoretical approaches incorporating a base of spatial socio-economic constraints, from which a set of conditions for local endogenous development could be suggested. This is a recent question in Growth Theory or Industrial Economics that will become progressively more important, as global economies will call for similar social environments. The cohesion policy of European Union has contributed to an expansion of this debate

Estudo de Inclusões Fluidas de Jazigos de Pb-Zn-(Ag) do Centro e Nordeste de Portugal - Resultados Preliminares

Fluid Inclusion studies are being carried out in Pb-Zn-(Ag) deposits from NE and Central Portugal. In this brief abstract the preliminary results obtained for one of these deposits are presented: Ferronho deposit (Bragança district). Samples of quartz from the mineralized veins were petrographically studied and fluid inclusion assemblages defined in relation to different depositional events. Results from the microthermometric study provide the physical-chemical conditions under which the deposit was forme

Combinação de inseticida químico com Metarhizium anisopliae para o manejo de Oebalus poecilus (Heteroptera: Pentatomidae) em arroz irrigado.

Foi investigada a ação combinada de Metarhizium anisopliae (cepa CG168) com um inseticida químico (EngeoPleno®, neonicotinoide + piretroide) em concentração subletal contra adultos de Oebalus poecilus em arroz irrigado

\u3ci\u3eEimeria\u3c/i\u3e spp. in Brazilian Water Buffalo

Eimeria species are frequently found in water buffalo (Bubalus bubalis) in Brazil. Here, we report those Eimeria spp. that infect buffalos during their first year of life. Fresh fecal samples were examined from 2 groups (1 group/yr for 2 yr, 2000-2002), each with 18 water buffalo calves (both sexes), from birth through 12 months of age, in Selvíria, MS, Brazil. Five oocyst morphotypes were observed, i.e., Eimeria ellipsoidalis and Eimeria zuernii, both previously described from water buffalo, and 3 other morphotypes consistent with descriptions of known Eimeria spp. from Artiodactyla hosts, but originally described from other genera than those in which we found them (referred to here as Eimeria species 1-3). Our results showed that buffalo calves started shedding oocysts in their feces between 6-29 days of age, with the highest concentration ranging from 188-292 oocysts/g of feces. The 3 unnamed oocyst morphotypes in the calf feces resembled E. auburnensis (Eimeria sp. 3), E. cylindrica (Eimeria sp. 1), and E. subspherica (Eimeria sp. 2). The most prevalent species were Eimeria sp. 1 and E. ellipsoidalis, which dominated in the youngest animals (6 to 133 days old). Eimeria zuernii oocysts, in contrast, were found only in low numbers in the feces of older calves (208 to 283 days old). Calves were infected more frequently during the rainy season (September to January) in both years, but cows were negative for Eimeria spp., whenever feces were collected (spring, winter, autumn, or summer seasons)

\u3ci\u3eEimeria\u3c/i\u3e spp. in Brazilian Water Buffalo

Eimeria species are frequently found in water buffalo (Bubalus bubalis) in Brazil. Here, we report those Eimeria spp. that infect buffalos during their first year of life. Fresh fecal samples were examined from 2 groups (1 group/yr for 2 yr, 2000-2002), each with 18 water buffalo calves (both sexes), from birth through 12 months of age, in Selvíria, MS, Brazil. Five oocyst morphotypes were observed, i.e., Eimeria ellipsoidalis and Eimeria zuernii, both previously described from water buffalo, and 3 other morphotypes consistent with descriptions of known Eimeria spp. from Artiodactyla hosts, but originally described from other genera than those in which we found them (referred to here as Eimeria species 1-3). Our results showed that buffalo calves started shedding oocysts in their feces between 6-29 days of age, with the highest concentration ranging from 188-292 oocysts/g of feces. The 3 unnamed oocyst morphotypes in the calf feces resembled E. auburnensis (Eimeria sp. 3), E. cylindrica (Eimeria sp. 1), and E. subspherica (Eimeria sp. 2). The most prevalent species were Eimeria sp. 1 and E. ellipsoidalis, which dominated in the youngest animals (6 to 133 days old). Eimeria zuernii oocysts, in contrast, were found only in low numbers in the feces of older calves (208 to 283 days old). Calves were infected more frequently during the rainy season (September to January) in both years, but cows were negative for Eimeria spp., whenever feces were collected (spring, winter, autumn, or summer seasons)