A bacia sedimentar do Tacutu situa-se na fronteira Brasil com a República Cooperativa da Guiana e tem se mostrado como um importante local para estudos paleobotânicos. Este projeto objetivo desenvolver banco de dados morfoanatomia folhas angiospermas atuais fins comparação fósseis (Cenozoicas) recuperadas Bacia Tacutu, Roraima. Assim, proposta, além fornecer informações sobre flora Amazônia pré...

The current study used the Biome-Bio Geochemical Cycle (Biome-BGC) model to simulate water-use efficiency (WUE) of Piceacrassi folia (P. crassifolia) forest under four representative concentration pathway (RCP) scenarios, and investigated the responses of forest WUE to different combinations of climatic changes and CO2 concentrations in the Qilian Mountains of Northwest China. The model was val...

ABSTRACT Arterial hypertension is a worldwide public health problem and the search for new medicines one of biggest challenges treatment this pathology. Secondary metabolites plants exhibit pharmacological properties great phyto therapeutic interest. Cerrado largest biomes in Brazil research with as resources growing Our objective was to compile data regarding that already have some their activ...

Salacia crassifolia, commonly known as “bacupari do Cerrado”, is a fruit highly valued by the local population. However, limited information available in literature regarding its constituents and/or functional properties. This study aimed to determine phytochemical profile, antioxidative activity using DPPH and ABTS assays, quantify phenolic compounds, carotenoids, vitamin C freeze-dried pulp, ...

The collapse of so many AAA-rated structured ...nance products in 2007-2008 has brought renewed attention to the causes of ratings failures and the con‡icts of interest in the Credit Ratings Industry. We provide a model of competition among Credit Ratings Agencies (CRAs) in which there are three possible sources of con‡icts: 1) the CRA con‡ict of interest of understating credit risk to attract ...