Antonio Correia

Learn More
A 137 m ice core drilled in 1999 from Eastern Bolivian Andes at the summit of Nevado Illimani (16 • 37 S, 67 • 46 W, 6350 m a.s.l.) was analyzed at high temporal resolution, allowing a characterization of trace elements in Andean aerosol trapped in the ice during the 20 th century. The upper 50 m of the ice core were dated by multi-proxy analysis 5 of(More)
This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Savannah-type ecosystems account for 26–30 % of global gross primary productivity GPP with water being one of the major driving factors. In Europe, savannah-type woodlands cover an area of about 1.5(More)
Two borehole climate observatories were established in Slovenia and Portugal within a joint Czech-Slovenian-Portuguese project in the years 2003-2005. Together with the older Czech observatory, which has been operating since the year 1994, they monitor air, soil and bedrock temperatures with the aim of studying air-ground coupling and the downward(More)
When one of the dimensions of a structural member is not clearly larger than the two orthogonal ones, engineers are usually compelled to simulate it with refined meshes of shell or solid finite elements that typically impose a large computational burden. The alternative use of classical beam theories, either based on Euler-Bernoulli or Timoshenko's(More)
Resumo Estruturas porticadas de betão armado (BA) sujeitas à ação sísmica apresentam frequentemente deformações localizadas nas extremidades dos seus elementos devidas ao escorregamento das armaduras em relação ao betão, nomeadamente ao longo do seu comprimento de amarração. Apesar de as mesmas poderem representar 40% da deformação lateral total de(More)
During previous studies to evaluate the phylogenetic diversity of Aeromonas from untreated waters and vegetables intended for human consumption, a group of isolates formed a unique gyrB phylogenetic cluster, separated from those of all other species described so far. A subsequent extensive phenotypic characterization, DNA–DNA hybridization, 16S rRNA gene(More)
We present a methodology to assess cell level alterations on the human retina responsible for functional changes observable in the Optical Coherence Tomography data in healthy ageing and in disease conditions, in the absence of structural alterations. The methodology is based in a 3D multilayer Monte Carlo computational model of the human retina. The(More)
This E-Nano newsletter issue contains the main outputs of the EU funded MULT.EU.SIM project i.e. the report " Multi-scale modelling for devices and circuits " and the project survey on " Status And Prospects Of Multiscale Modelling In The European Union ". MULT.EU.SIM principal aim has been to gather the simulation research community in Europe to establish(More)