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	Provedor de dados ArchiMer (5) BABT (2) Autor Bailly Du Bois, Pascal (3) Dumas, Franck (3) Morillon, Mehdi (2) Oms, Pierre-emmanuel (2) Solier, Luc (2) Voiseux, Claire (2) Andrello,Avacir Casanova (1) Appoloni,Carlos Roberto (1) Charmasson, Sabine (1) Cosson, Richard P. (1) Cossonnet, Catherine (1) Du Bois, Pascal Bailly (1) Garreau, Pierre (1) Guimarães,Maria de Fátima (1) Korsakissok, Irene (1) Laguionie, Philippe (1) Lazure, Pascal (1) Le Corre, Cedric (1) Le Faouder, Antoine (1) Loyen, Jeanne (1) Mais... Palavra-chave Radionuclide (7) Dispersion (2) English Channel (2) North Sea (2) Tracer (2) Antimony 125 (Sb-125) (1) Background concentration (1) Bathymodiolus (1) Bioaccumulation (1) Biscay Bay (1) Caesium 137 (1) Coastal modelling (1) Concentration (1) Data collection (1) Database (1) Dissolved substances (1) Environmental half-time (1) Fukushima accident (1) Hydrodynamic model (1) Hydrothermal vent (1) Mais... Tipo do documento Text (5) Info:eu-repo/semantics/article (2) Ano 2020 (1) 2019 (1) 2014 (1) 2011 (1) 2008 (1) 2004 (2) Mais... País France (5) Brazil (2) Idioma Inglês (6) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 7 Primeira ... 1 ... Última Imaging and therapy with radionuclide labeled magnetic nanoparticles BABT Ünak,Perihan. Magnetic nanoparticles offer exciting new opportunities including the improvement of the quality of magnetic resonance imaging (MRI), hyperthermic treatment for malignant cells, site-specific drug delivery and also the recent research interest of manipulating cell membranes. The biological applications of these nanomaterials require these nanoparticles to have high magnetization values, size smaller than 20 nm, narrow particle size distribution and a special surface coating for both avoiding toxicity and allowing the coupling of biomolecules. In this review, we focus on the feasibility of radionuclide labeled magnetic nanoparticles, as drug carriers, and summarize recent advances in this field. Tipo: Info:eu-repo/semantics/article Palavras-chave: Magnetite Nanoparticles; Radionuclide; Imaging; Therapy; Targeted drug delivery; Iron oxide. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700006 Soil erosion determination in a watershed from northern Paraná (Brazil) using 137Cs BABT Andrello,Avacir Casanova; Appoloni,Carlos Roberto; Guimarães,Maria de Fátima. The objective of this work was study the soil losses or gains in a watershed in the municipal district of Cambé, Paraná using 137Cs as marker for the determination of soil redistributions. A transect sampling was used to evaluate the influence of different tillage on soil erosion. One point, located in a forest area was sampled and analyzed to determine the reference inventory of cesium-137 deposited by fallout. The average value of the reference inventory was 292 Bq m-2. The cesium-137 inventory of the transect samples varied from 80 Bq m-2 to 403 Bq m-2. The sampling points in pasture presented soil losses. The sampling points in coffee plantation did not present losses or gains. The sampling points in soybean cultivated areas presented soil losses. Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil redistribution; Radionuclide; Red latosol. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400020 TRANSMER, un modèle hydrodynamique rapide et précis pour la simulation à moyen et long terme des transferts de radionucléides en Manche et dans le sud de la Mer du Nord ArchiMer Bailly Du Bois, Pascal; Dumas, Franck. TRANSMER hydrodynamic model simulates dispersion of dissolved substances in seawater at the scale of the English Channel and the south of the North Sea with a mesh size of one kilometre and a time step of 30 minutes. It has been qualitatively and quantitatively validated by 1400 measurement of 125Sb in seawater. This model evaluates the medium- and long-term consequences of releases of soluble pollutants in the marine ecosystem under normal or accidental conditions, at a very low computation cost (it takes less than one hour to simulate one year). Tipo: Text Palavras-chave: English Channel; North Sea; Radionuclide; Concentration; Dispersion; Dissolved substances; Seawater; Hydrodynamic model; Modèle; Sb 125; Dispersion; Mer du Nord; Manche. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/acte-563.pdf Dissolved Radiotracers and Numerical Modeling in North European Continental Shelf Dispersion Studies (1982–2016): Databases, Methods and Applications ArchiMer Bailly Du Bois, Pascal; Dumas, Franck; Voiseux, Claire; Morillon, Mehdi; Oms, Pierre-emmanuel; Solier, Luc. Significant amounts of anthropogenic radionuclides were introduced in ocean waters following nuclear atmospheric tests and development of the nuclear industry. Dispersion of artificial dissolved radionuclides has been extensively measured for decades over the North-European continental shelf. In this area, the radionuclide measurement and release fluxes databases provided here between 1982 and 2016 represent an exceptional opportunity to validate dispersion hydrodynamic models. This work gives accessibility to these data in a comprehensive database. The MARS hydrodynamic model has been applied at different scales to reproduce the measured dispersion in realistic conditions. Specific methods have been developed to obtain qualitative and quantitative results... Tipo: Text Palavras-chave: Radionuclide; Tracer; Data collection; Antimony 125 (Sb-125); Tritium (H-3); Dispersion; Modeling; English Channel; North Sea; Biscay Bay. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00633/74521/74348.pdf Comparison between modelling and measurement of marine dispersion, environmental half-time and 137Cs inventories after the Fukushima Daiichi accident ArchiMer Du Bois, Pascal Bailly; Garreau, Pierre; Laguionie, Philippe; Korsakissok, Irene. Contamination of the marine environment following the accident at the Fukushima Daiichi nuclear power plant (FDNPP) represents the most important influx of artificial radioactivity released into the sea ever recorded. The evaluation, in near real time, of the total amount of radionuclide released at sea and of the residence time in coastal waters were ones of challenges for nuclear authorities during this event. In the framework of a crisis situation, a numerical hydrodynamical model has been built and used ‘as is’. The concomitant use of this numerical model and in situ data allows the comparison of the simulated and measured environmental half-times. A tuning of the wind drag coefficient has been nevertheless necessary to reproduce the evolution of... Tipo: Text Palavras-chave: Fukushima accident; Caesium 137; Coastal modelling; Environmental half-time; Radionuclide; Pacific Ocean. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00173/28390/26719.pdf Inventory and distribution of tritium in the oceans in 2016 ArchiMer Oms, Pierre-emmanuel; Bailly Du Bois, Pascal; Dumas, Franck; Lazure, Pascal; Morillon, Mehdi; Voiseux, Claire; Le Corre, Cedric; Cossonnet, Catherine; Solier, Luc; Morin, Pascal. Tritium concentrations in oceans were compiled from the literature, online databases and original measurements in order to determine the global distribution of tritium concentrations according to latitude and depth in all oceans. The total inventory of tritium decay corrected in 2016 has been estimated using evaluation of the natural and artificial contributions in 23 spatial subdivisions of the total ocean. It is determined equal to 26.8 ± 14 kg including 3.8 kg of cosmogenic tritium. That is in agreement with the total atmospheric input of tritium from nuclear bomb tests and the natural inventory at steady-state estimated from natural production rates in the literature (27.8–29.3 kg in the Earth). We confirm the global increase in tritium according to... Tipo: Text Palavras-chave: Radionuclide; Tracer; Database; Background concentration. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00470/58157/60653.pdf Po-210 and Pb-210 in the tissues of the deep-sea hydrothermal vent mussel Bathymodiolus azoricus from the Menez Gwen field (Mid-Atlantic Ridge) ArchiMer Charmasson, Sabine; Le Faouder, Antoine; Loyen, Jeanne; Cosson, Richard P.; Sarradin, Pierre-marie. The hydrothermal deep-sea vent fauna is naturally exposed to a highly specific environment enriched in potentially toxic species such as sulfides, metals and natural radionuclides due to the convective seawater circulation inside the oceanic crust and its interaction with basaltic or ultramafic host rocks. However, data on radionuclides in biota from such environment are very limited. An investigation was carried out on tissue partitioning of Po-210 and Pb-210, two natural radionuclides within the U-238 decay chain, in Bathymodiolus azoricus specimens from the Mid-Atlantic Ridge (Menez Gwen field). These two elements showed different distributions with high Pb-210 levels in gills and high Po-210 levels in both gills and especially in the remaining parts of... Tipo: Text Palavras-chave: Po-210; Pb-210; Radionuclide; Bathymodiolus; Bioaccumulation; Hydrothermal vent. Ano: 2011 URL: http://archimer.ifremer.fr/doc/00030/14172/11864.pdf Registros recuperados: 7 Primeira ... 1 ... Última

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