Perfil del autor: Villa Alfageme, María
Datos institucionales
| Nombre | Villa Alfageme, María |
| Departamento | Física Aplicada II |
| Área de conocimiento | Física Aplicada |
| Categoría profesional | Catedrática de Universidad |
| Correo electrónico | Solicitar |
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Estadísticas
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Nº publicaciones
39
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Nº visitas
2223
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Nº descargas
3730
| Publicaciones |
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Trabajo Fin de Grado
 Puesta a punto de una nueva técnica radiométrica para la medida del par radiactivo 210Pb/210Po en el oceáno
(2023)
Nuestro trabajo ha consistido en el desarrollo de un nuevo método de medida de la pareja 210Pb/210Po en el océano a lo ... |
Artículo
Vertical imbalance in organic carbon budgets is indicative of a missing vertical transfer during a phytoplankton bloom near South Georgia (COMICS)
(Elsevier, 2023)
The biological carbon pump, driven principally by the surface production of sinking organic matter and its subsequent ... |
Artículo
Recycling Bio-BasedWastes into Road-Base Binder: Mechanical, Leaching, and Radiological Implications
(MDPI, 2023)
This work presents a physical, mechanical, durability, leaching, and radiological assay of three wastes (egg and scallop ... |
Tesis Doctoral
Optimización de métodos para la determinación de radioestroncio en muestras biológicas por radiación Cerenkov
(2022)
En este estudio se optimizan dos de los métodos para la medida de 90Sr en muestras biológicas y sedimentos, que se emplean ... |
Artículo
Revisiting five decades of 234Th data: a comprehensive global oceanic compilation
(Copernicus Publications, 2022)
We present here a global oceanic compilation of 234Th measurements that collects results from researchers and laboratories ... |
Trabajo Fin de Máster
Uso del par radioactivo 210Po-210Pb en la zona subtropical de Benguela como trazador de velocidades de hundimiento de partículas y flujos de carbono en el océano
(2022)
In this Master’s Thesis, we will briefly describe the role of the ocean in sequestering at mospheric carbon, we will apply ... |
| Trabajo Fin de Máster |
Artículo
Analysis of a major Aeolian dust input event and its impact on element fluxes and inventories at the DYFAMED site (Northwestern Mediterranean)
(Elsevier, 2020)
Continental dust can be suspended and transported by the wind, reaching seawater masses far away from its source. The ... |
Artículo
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation
(Wiley, 2020)
he attenuation coefficient bis one of the most common ways to describe how strong the carbonflux is attenuated throughout ... |
| Tesis Doctoral |
Artículo
234Th-derived particle fluxes and seasonal variability: when is the ss assumption reliable? Insights from a novel Approach for carbon flux simulation
(AGU Publications, 2018)
Th measurements are widely used to estimate the downward carbon flux of particles via the oceanic Biological Pump. Carbon ... |
Artículo
Comparison of Solvent Extraction and Extraction Chromatography Resin Techniques for Uranium Isotopic Characterization in High-Level Radioactive Waste and Barrier Materials
(Elsevier, 2018)
The development of Deep Geological Repositories (DGP) to the storage of high-level radioactive waste (HLRW) is mainly ... |
Artículo
Natural and artificial radionuclides in a marine core. First results of 236U in North Atlantic Ocean sediments
(ScienceDirect, 2018)
There are very few data available of 236U in marine sediment cores. In this study we present the results from the first ... |
Artículo
The GEOTRACES Intermediate Data Product 2017
(Elsevier, 2018)
The GEOTRACES Intermediate Data Product 2017 (IDP2017) is the second publicly available data product of the international ... |
| Artículo |
Artículo
Recent evolution of 129-I levels in the Nordic Seas and the North Atlantic Ocean
(Elsevier, 2018)
Most of the anthropogenic radionuclide 129I released to the marine environment from the nuclear fuel reprocessing plants ... |
Artículo
A sequential determination of Sr-90 and Po-210 in food samples
(ELSEVIER SCI LTD, 2017)
The latest EU Council Regulation 2016/52/Euratom updates the emergency limits on radionuclides in foods including 210Po ... |
Artículo
Geographical, seasonal, and depth variation in sinking particle speeds in the North Atlantic
(AGU Publications, 2016)
Particle sinking velocity is considered to bea controlling factor for carbon transport to the deep sea and thus carbon ... |
Artículo
Rapid determination of Pb-210 and Po-210 in water and application to marine samples
(Elsevier Science BV, 2016)
Measurement of radionuclides in marine samples, specifically radioactive pairs disequilibrium, has gained interest lately ... |
Artículo
Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
(ScienceDirect, 2015)
The performance of the 1 MV AMS system at the CNA (Centro Nacional de Aceleradores, Seville, Spain) for 236U and 239,240Pu ... |
Artículo
Uranium immobilization by FEBEX bentonite and steel barriers in hydrothermal conditions
(Elsevier, 2015)
FEBEX clay is considered a reference material in engineered barriers for safe storage of nuclear waste and uranium is a ... |
Artículo
The behaviour of I-129 released from nuclear fuel reprocessing factories in the North Atlantic Ocean and transport to the Arctic assessed from numerical modelling
(Elsevier, 2015)
A quantitative evaluation of the fate of 129I, released from the European reprocessing plants of Sellafield (UK) and La ... |
Artículo
Effect of clays and metal containers in retaining Sm3+ and ZrO2+ and the process of reversibility
(Walter de Gruyter, 2014)
Knowledge and understanding about radionuclides retention processes on the materials composing the engineered barrier (clay ... |
Artículo
Competitive effect of the metallic canister and clay barrier on the sorption of Eu3+ under subcritical conditions
(Elsevier, 2014)
An in depth knowledge and understanding of high activity radionuclide (HLRW) immobilization processes on the materials ... |
Artículo
Quantification and comparison of the reaction properties of FEBEX and MX-80 clays with saponite: Europium immobilisers under subcritical conditions
(Elsevier, 2014)
The evaluation of the retention mechanisms in FEBEX and MX-80 bentonites, selected as reference materials to construct ... |
Ponencia
Observations and modeling of slow-sinkingparticles in the twilight zone
(2013)
The biological carbon pump (BCP) transfers carbon from the surface ocean into the oceans’interior,mainly in the form of ... |
Artículo
AMS measurements of 129I in seawater around Iceland and the Irminger Sea
(ScienceDirect, 2013)
Large amounts of iodine-129 were, and still are, released into the environment from nuclear facilities, in particular from ... |
Artículo
Radionuclide activities and metal concentrations in sediments of the Sebou Estuary, NW Morocco, following a flooding event
(Springer, 2013)
This study presents metal concentrations (Fe, Mg, Mn, Co, Cu, Zn, Pb, As, Sr and V) and radionuclide activities (40K, ... |
Artículo
On the proportion of ballast versus non-ballast associated carbon export in the surface ocean
(Wiley, 2012)
The role of biominerals in driving carbon export from the surface ocean is unclear. We compiled surface particulate organic ... |
Artículo
Determination of trace element concentrations and stable lead, uranium and thorium isotope ratios by quadrupole-ICP-MS in NORM and NORM-polluted sample leachates
(Elsevier Science BV, 2012)
This works focus on the monitoring of the potential pollution in scenarios that involves NORM related industrial activities ... |
Ponencia
Geochronology of recent sediments from the Cariaco Trench (Venezuela) by Alpha Spectrometry of 210Pb (210Po)
(American Institute of Physics, 2010)
210Pb concentration in marine sediments of the Cariaco Trench (North‐East of Venezuela) was measured through the analysis ... |
Artículo
Contamination and restoration of an estuary affected by phosphogypsum releases
(Elsevier, 2009)
The Huelva Estuary in Huelva, Spain, has been one of the most studied environmental compartments in the past years from ... |
Ponencia
Time evolution of activity concentration of natural emitters in a scenario affected by previous phosphogypsum contamination
(2008)
The estuary formed by the confluence of Tinto and Odiel river-mouths is located in the South of Spain, close ... |
Ponencia
Measurement of 210Pb and its application to evaluate contamination in an area affected by NORM releases
(American Institute of Physics, 2008)
Liquid scintillation counting (LSC) is an easy and straightforward technique, and combined with its low limit of detection, ... |
Artículo
Modeling of 226Ra behavior in a Spanish estuary affected by the phosphate industry
(Springer, 2007)
The Odiel and Tinto rivers, southwest Spain, form a fully mixed estuary. An industrial area that includes a complex dedicated ... |
Artículo
A self-sufficient and general method for self-absorption correction in gamma-ray spectrometry using GEANT4
(Elsevier, 2007)
This paper presents a self-sufficient and general method for measurement of the activity of low-level gamma-emitters in ... |
Artículo
Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements: numerical simulations
(Elsevier, 2005)
A numerical model of the Odiel–Tinto estuary (Spain) has been developed to study the self-cleaning process that was evidenced ... |
Artículo
Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
(Elsevier, 2004)
The estuary of the Odiel River has been affected by both direct discharges of phosphogypsum (radium enriched industrial ... |
| Tesis Doctoral |