Nuculidae (Bivalvia) in the Cape Melville Formation, King George Island, Antarctica, with an overview of the bivalve fau...
CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
Different lead sources in an abandoned uranium mine (Urgeirica - Central Portugal) and its environment impact - isotopic...
Fundacao para a Ciencia e Tecnologia de Portugal (FCT)
Nuculidae (Bivalvia) in the Cape Melville Formation, King George Island, Antarctica, with an overview of the bivalve fau...
CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
ISOTOPE IDENTIFICATION AND SOURCE DIRECTIONAL DETERMINATION USING GAMMA RADIATION PROFILING
This thesis presents a method for evaluating gamma radiation profiles using a low power gamma radiation detector system (GRDS). This method enables multiple radioactive gamma isotopes to be identified and determine the respective vector directions of those sources relative to the GRDS location. This detection method must be accurate, implemented as...
Relative contribution of seed phosphorus reserves and exogenous phosphorus uptake to maize (Zea mays L.) nutrition durin...
Published in Plant and Soil
Adequate phosphorus (P) nutrition during early stages is critical for maize growth. Our objective was to evaluate the relative contribution of seed P reserves and exogenous P to maize nutrition during early growth stages. Seedlings were grown with labeled nutrient solution (32P). Seedlings were harvested periodically over the course of the three-we...
The 13C/12C isotopic signal of day-respired CO2 in variegated leaves of Pelargonium × hortorum.
Published in Plant, cell & environment
In leaves, although it is accepted that CO(2) evolved by dark respiration after illumination is naturally (13) C-enriched compared to organic matter or substrate sucrose, much uncertainty remains on whether day respiration produces (13) C-depleted or (13) C-enriched CO(2). Here, we applied equations described previously for mesocosm CO(2) exchange ...
Community structure and feeding preference of nematodes associated with methane seepage at the Darwin mud volcano (Gulf ...
We sampled the Darwin mud volcano (MV) for meiofaunal community and trophic structure in relation to pore-water geochemistry along a 10 m transect from a seep site on the rim of the crater towards the MV slope. Pore-water profiles indicated considerable variation in upward methane (CH4) flow among sediment cores taken along the transect, with highe...
Uso dos fenois da lignina no estudo matéria orgânica na Varzea do Lago Grande Curuai, Para e no Lago do Caço, Maranhao, ...
Diagenetic formation of gypsum and dolomite in a cold-water coral mound in the Porcupine Seabight, off Ireland
...
International audience
The universal ratio of boron to chlorinity for the North Pacific and North Atlantic oceans
We report seawater boron concentration (mg kg(-1)) and chlorinity (parts per thousand) values measured in seawater samples (n = 139) collected at various depths in the North Pacific and North Atlantic oceans and the East/Japan Sea (located in the western temperate North Pacific). Our results indicate that variations in seawater boron concentration ...
