395 research outputs found
Tonalitas del Macizo de Hospitais (Zona de Ossa Morena, SO Macizo Ibérico, Portugal): I: Encuadre geológico y petrografía
The Hospitais Massif is an elliptical-shaped plutonic body, with a WNW-ESE long axis, located in the western Ossa-Morena Zone domains in Portugal. This massif, composed essentially of tonalites, is part of
an igneous association, ranging from gabbros to granites, intrusive in a gneissic-migmatitic complex, as part of the Évora High-grade Metamorphic Terrains. The tonalites present magmatic fabrics associated
with a moderately developed foliation, recording syntectonic crystallization and cooling, co-planar to steep foliations observed within the surrounding sheared gneisses and migmatites. From field and
petrographic studies, it is possible to suggest that the deformation of the tonalites and associated basic rocks was synchronous with Variscan progressive shearing of the gneisses and migmatites envelope.El Macizo de Hospitais corresponde a un plutón elíptico de orientación ONO-ESE localizado en los domínios occidentales de la Zona de Ossa Morena, en Portugal. Este macizo, constituido por una asociación ígnea
que incluye desde gabros hasta granitos y en la que son dominantes las tonalitas, está intruida en un complejo de gneises y migmatitas perteneciente a los Terrenos de Alto-grado Metamórfico de Évora. Las
tonalitas muestran fabricas magmáticas asociadas a una foliación moderadamente desarrollada durante la cristalización y enfriamiento, paralelas a la foliación subvertical observada en los gneises y migmatitas del encajante. Las evidencias de campo y los estudios petrográficos permiten sugerir que la deformación de las tonalitas y rocas básicas asociadas que afloran cerca de Montemor-o-Novo, fue contemporánea con el
progresivo cizallamiento Varisco observado en los gneises y migmatitas del encajante
Tonalitas del Macizo de Hospitais (Zona de Ossa Morena, SO Macizo Ibérico, Portugal): II: Geoquímica y petrogénesis
As described in the first part of this work (Moita et al., this volume), the Hospitais Massif belongs to a synorogenic Variscan magmatic association, intrusive in a gneissic-migmatitic complex of the Évora High-Grade Metamorphic Terrains. In this paper, geochemical data obtained on tonalites and dioritic enclaves, from the Hospitais Massif, and on gabbros, from smaller plutonic bodies in the neighbourhood of that massif, are used to constrain hypotheses on the petrogenetic processes responsible for the mentioned lithologies. Major and trace element geochemistry reveal calc-alkaline affinities and suggest that gabbros, diorites and tonalites belong to a magma suite derived dominantly by fractional crystallization. The presence of microgranular mafic enclaves, within the tonalites, could be interpreted as representing an additional process of mingling/mixing for the evolution of these rocks. According to their geochemical features, the enclaves may have resulted from an intermediate differentiation product internally mixed with the tonalite melt. A filter-pressing process can explain the amphibole-dominated cumulate REE pattern displayed by the enclaves.Como se ha descrito en la primera parte del trabajo (Moita et al. en este volumen), el Macizo de Hospitais pertenece a una serie magmática sinorogénica Varisca intruida en un complejo de gneises y migmatitas perteneciente a los Terrenos de Alto-grado Metamórfico de Évora. Se han utilizado datos geoquímicos de las tonalitas, de los enclaves dioríticos y de pequeños cuerpos, espacialmente asociados, de gabro, para
caracterizar los procesos petrogenéticos relacionados con esta serie magmática. La geoquímica de elementos mayores y traza muestra una afinidad calco-alcalina y sugiere que los gabros, dioritas y tonalitas pertenecen a una serie magmática originada mediante procesos de cristalización fraccionada. La presencia de enclaves
microgranulares máficos en tonalitas, puede ser interpretada como el resultado de un proceso adicional de “mingling/mixing” en la evolución en estas rocas. De acuerdo con sus características geoquímicas los enclaves serián el resultado de un producto intermedio de diferenciación internamente mezclado con el magma tonalítico. Un proceso de “filter-pressing” puede explicar los patrones de tierras raras de cumulados anfibólicos característicos de los enclaves estudiados
Avaliação de acessos do banco de germoplasma de mandioquinha-salsa da Embrapa Hortaliças para resistência a Meloidogyne spp. no campo.
bitstream/CNPH-2009/33235/1/bpd_23.pd
gene-expression-based diagnostics for presymptomatic diagnosis of hospital-acquired infections
Funding Information: LFM—None to declare. TES—employee of and shareholder in Inflammatix, Inc. PP—received fees for lecture from Gilead and Pfizer, consulting from MSD and Sanofi and unrestricted research grant from Abionic.publishersversionpublishe
Disease tolerance and immunity in host protection against infection
The deposited article is a pre-print version.This publication hasn't any creative commons license associated.This deposit is composed by the main article which contains attached the supplementary materials.The immune system probably evolved to limit the negative effects exerted by pathogens on host homeostasis. This defence strategy relies on the concerted action of innate and adaptive components of the immune system, which sense and target pathogens for containment, destruction or expulsion. Resistance to infection refers to these immune functions, which reduce the pathogen load of an infected host as the means to preserve homeostasis. Immune-driven resistance to infection is coupled to an additional, and arguably as important, defence strategy that limits the extent of dysfunction imposed on host parenchymal tissues during infection, without exerting a direct negative effect on pathogens. This defence strategy, known as disease tolerance, relies on tissue damage control mechanisms that prevent the deleterious effects of pathogens and that uncouples immune-driven resistance mechanisms from immunopathology and disease. In this Review, we provide a unifying view of resistance and disease tolerance in the framework of immunity to infection.Instituto Gulbenkian de Ciência; Fundação Calouste Gulbenkian; Fundação para a Ciência e Tecnologia grants: (PTDC/SAU-TOX/116627/2010, HMSP-ICT/0022/2010, PTDC/BEX-GMG/3128/2014); ERC grants: (ERC-2011-AdG 294709-DAMAGECONTROL, ERC-2014-CoG 647888-iPROTECTION).info:eu-repo/semantics/publishedVersio
Pomarinho enclave swarm (Évora granitoid): a preliminary study
No bordo SW do granitóide de Évora (junto a Pomarinho), encontra-se um enxame de encraves ígneos, máficos a intermédios. Dados de ASM, obtidos nos encraves e na rocha hospedeira, revelam uma forte coerência nas lineações magnéticas (K1), com direcção N-S e inclinação de 35º para S. Estes resultados permitem sugerir que a disposição das lineações tivesse sido controlada por factores como: i) reajustamento tectónico nas fases finais da cristalização magmática; ii) forte influência do bordo lateral da intrusão (N-S); iii) fluxo simultâneo dos magmas félsico e máfico próximo do topo da intrusão.A swarm of mafic to intermediate igneous enclaves can be observed in the SW border of the Évora granitoid, near Pomarinho. AMS measurements, on both the enclaves and the host rock are very consistent and show that magnetic lineations (K1) have a N-S trend and a plunge of 36º to the S. The attitude of the studied linear features could have been controlled by: i) the tectonic stress field, during the final stages of igneous crystallization; ii) the orientation of the wall of the intrusion; iii) the simultaneous flow of the felsic and mafic magmas close to the top of the intrusion
Analysis of the Topics of Research of Brazilian Researchers Acting in the Areas of Engineering
The production and publication of scientific works
have increased significantly in the last years, being the Internet
the main factor of access and diffusion of these. In view of this,
researchers from several areas of knowledge have carried out several
studies on scientific production data in order to analyze phenomena
and trends about science. The understanding of how research has
evolved can, for example, serve as a basis for building scientific
policies for further advances in science and stimulating research
groups to become more productive. In this context, the objective
of this work is to analyze the main research topics investigated
along the trajectory of the Brazilian science of researchers working
in the areas of engineering, in order to map scientific knowledge
and identify topics in highlights. To this end, studies are carried
out on the frequency and relationship of the keywords of the set of
scientific articles registered in the existing curricula in the Lattes
Platform of each one of the selected researchers, counting with the
aid of bibliometric analysis features
Desempenho de oito cultivares de batata-doce conduzidos em sistema orgânico no Distrito Federal.
Objetivou-se com o presente estudo avaliar o desempenho de oito cultivares de batata-doce em cultivo orgânico, utilizando mudas com alta qualidade fitossanitária, no Distrito Federal visnado identificar as cultivares mais promissoara para este tipo de cultivo.Suplemento. Edição dos Anais do 53 Congresso Brasileiro de Olericultura, jul. 2014
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