Adriano Camps, Jordi Font, M. Vall‐llossera, Carolina Gabarró, I. Corbella, N. Duffo, F. Torres, S. Blanch, Albert Aguasca, R. Villarino, L. Enrique, J.J. Miranda, J. Arenas, A. Julià, J. Etcheto, V. Caselles, Alain Weill, Jacqueline Boutin, Stephanie Contardo, Raquel Niclós, Raúl Eduardo Rivas, Steven C. Reising, P. Wursteisen, Michael Berger, Martin-Neira Manuel,
Soil Moisture and Ocean Salinity (SMOS) is an Earth Explorer Opportunity Mission from the European Space Agency with a launch date in 2007. Its goal is to produce global maps of soil moisture and ocean salinity variables for climatic studies using a new dual-polarization L-band (1400-1427 MHz) radiometer Microwave Imaging Radiometer by Aperture Synthesis (MIRAS). SMOS will have multiangular observation capability and can be optionally operated in full-polarimetric mode. At this frequency the sensitivity ...
Tópico(s): Arctic and Antarctic ice dynamics
2004 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Geoscience and Remote Sensing
Volodymyr Kudriashov, Martin-Neira Manuel, Itziar Barat, IGLESIAS P MARTIN, Elena Daganzo-Eusebio, Nader Alagha, Václav Valenta,
The concept for space interferometry from Polar or Equatorial Circular Medium Earth Orbits (the PECMEO concept) is a promising way to acquire the image of the "shadow" of the event horizon of Sagittarius A * with an angular resolution of circa 5 microarcseconds. The concept is intended to decrease the size of the main reflector of the instrument to about 3 m using a precise orbit reconstruction based on Global Navigation Satellite System (GNSS) navigation, inter-satellite range and range-rate measurements, ...
Tópico(s): Ionosphere and magnetosphere dynamics
2019 - Science Press | Chinese Journal of Space Science
Estrella Olmedo, Antonio Turiel, Verónica González‐Gambau, Cristina González‐Haro, Aina García-Espriu, Carolina Gabarró, Marcos Portabella, I. Corbella, Manuel Martín‐Neira, Manuel Arias, Rafael Catany, Roberto Sabia, Roger Oliva, Klaus Scipal,
Changes in the Earth's water cycle can be estimated by analyzing sea surface salinity. This variable reflects the balance between precipitation and evaporation over the ocean, since the upper layers of the ocean are the most sensitive to atmosphere-ocean interactions. In situ measurements lack spatial and temporal synopticity and are typically acquired at few meters below the surface. Satellite measurements, on the contrary, are synoptic, repetitive and acquired at the surface. Here we show that ...
Tópico(s): Arctic and Antarctic ice dynamics
2022 - Nature Portfolio | Scientific Reports
Shuanggen Jin, Adriano Camps, Yan Jia, Feng Wang, Manuel Martín‐Neira, Feixiong Huang, Qingyun Yan, Shuangcheng Zhang, Zhongyu Li, Komi Edokossi, Dongkai Yang, Zhiyu Xiao, Zhongmin Ma, Weihua Bai,
Abstract The Global Navigation Satellite Systems (GNSS), including the US’s GPS, China’s BDS, the European Union’s Galileo, and Russia’s GLONASS, offer real-time, all-weather, any-time, anywhere and high precision observations by transmitting L band signals continuously, which have been widely used for positioning, navigation and timing. With the development of GNSS technology, it has been found that GNSS-reflected signals can be used to detect Earth’s surface characteristics together with other ...
Tópico(s): Precipitation Measurement and Analysis
2024 - Springer Nature | Satellite Navigation
Emili Dı́az, R. Amézaga Menéndez, Pablo Vidal, M Gero Escapa, Borja Suberviola, Ainhoa Serrano, Pilar Marcos-Neira, Manuel Quintana‐Díaz, M. Catalán González,
La infección por el virus SARS-CoV-2, denominada COVID-19 (COronaVIrus Disease 19), fue detectada inicialmente en China en diciembre 2019, y posteriormente se ha diseminado rápidamente por todo el mundo, hasta el punto de que el 11 de marzo la Organización Mundial de la Salud declaró que el brote podría definirse como pandemia. La COVID-19 presenta un cuadro que oscila desde episodios leves seudogripales a otros graves e incluso potencialmente mortales debido, sobre todo, a insuficiencia respiratoria ...
Tópico(s): Sepsis Diagnosis and Treatment
2020 - Elsevier BV | Medicina Intensiva
Alicia Osorio, Carla Toledo‐Neira, Manuel A. Bravo,
In this work, the analytical performance of a third-order/four-way calibration is evaluated to model a highly overlapped system, where two spectral dimensions are extremely similar, and the results are then compared with the results of second-order/three-way calibration. The four-way data were obtained during the photodegradation of fluoroquinolones (ciprofloxacin, norfloxacin and flumequine) in the form of excitation-emission matrices and modeled by unfolded partial least squares coupled to residual ...
Tópico(s): Water Quality Monitoring and Analysis
2019 - Elsevier BV | Talanta
Timothy P. Cash, Guillermo Pita, Orlando Domı́nguez, María R. Alonso, Leticia T. Moreno, Consuelo Borrás, Leocadio Rodríguez‐Mañas, Catalina Santiago, Nuria Garatachea, Alejandro Lucía, Juan A. Avellana, José Viña, Anna González‐Neira, Manuel Serrano,
Summary Exceptional longevity ( EL ) is a rare phenotype that can cluster in families, and co‐segregation of genetic variation in these families may point to candidate genes that could contribute to extended lifespan. In this study, for the first time, we have sequenced a total of seven exomes from exceptionally long‐lived siblings (probands ≥ 103 years and at least one sibling ≥ 97 years) that come from three separate families. We have focused on rare functional variants ( RFV s) which have ≤ 1% minor allele ...
Tópico(s): Mitochondrial Function and Pathology
2014 - Wiley | Aging Cell
Jacobo Iglesias Neira, Manuel Pazos, Rodrigo Maestre, Josep Lluı́s Torres, Isabel Medina,
The influence of galloyl residues on the antioxidant mechanism of polyphenols to prevent hemoglobin-promoted lipid oxidation was investigated by using polyphenolic fractions with different degrees of galloylation: nongalloylated structures from pine bark (IVP), medium-galloylated from grape pomace (IVG), and high-galloylated from witch hazel bark (IVH). Hemoglobin (Hb) from the pelagic fish horse mackerel (Trachurus trachurus) was employed as a Hb standard. In vitro experiments showed an important increase ...
Tópico(s): Free Radicals and Antioxidants
2011 - American Chemical Society | Journal of Agricultural and Food Chemistry
I. Ferreiro-Neira, Manuel Calaza, Elisa Alonso‐Perez, Maurizio Marchini, R Scorza, Gian Domenico Sebastiani, Francisco J. Blanco, Ignacio Rego‐Pérez, R Pullmann, R Pullmann, Cees G. M. Kallenberg, Marc Bijl, Fotini N. Skopouli, Maria Mavromati, S. Migliaresi, Nadia Barizzone, Š Rùzicková, C Dostál, Reinhold E. Schmidt, Torsten Witte, Chryssa Papasteriades, I. Kappou-Rigatou, E. Endreffy, Attila Kovács, Josep Ordi‐Ros, Eva Balada, Patrícia Carreira, Juan J. Gómez‐Reino, Antonio González,
Tópico(s): Atherosclerosis and Cardiovascular Diseases
2007 - Springer Nature | Genes and Immunity
Tópico(s): DNA and Nucleic Acid Chemistry
1997 - Cell Press | Folding and Design
Emili Dı́az, R. Amézaga Menéndez, Pablo Vidal, M Gero Escapa, Borja Suberviola, Ainhoa Serrano, Pilar Marcos-Neira, Manuel Quintana‐Díaz, M. Catalán González,
Infection by the SARS-CoV-2 virus, known as COVID-19 (COronaVIrus Disease-19) was initially detected in China in December 2019, and has subsequently spread rapidly throughout the world, to the point that on March 11 the World Health Organization (WHO) reported that the outbreak could be defined as a pandemic. COVID-19 disease ranges from mild flu-like episodes to other serious and even life-threatening conditions, mainly due to acute respiratory failure. These patients are frequently admitted to our ...
Tópico(s): Sepsis Diagnosis and Treatment
2021 - Elsevier BV | Medicina Intensiva (English Edition)
Víctor Neira, Natália Ramos, Rodrigo Tapia, Juan Arbiza, Andrónico Neira‐Carrillo, Manuel Quezada, A Ruiz, Sergio A. Bucarey,
Porcine circovirus type 2 (PCV2) is a very small, non-enveloped and icosahedral virus, with circular single stranded DNA genome. This virus is the most ubiquitous and persistent pathogen currently affecting the swine industry worldwide. PCV2 has been implicated as the major causative agent of postweaning multisystemic wasting syndrome (PMWS), a disease which is characterized by severe immunosuppressive effects in the porcine host. Worldwide PCV2 isolates have been classified into four different genotypes, ...
Tópico(s): Viral Infections and Immunology Research
2017 - BioMed Central | Virology Journal
Francisco Javier Gracia-Aznárez, María Victoria Fernández, Guillermo Pita, Paolo Peterlongo, Orlando Domı́nguez, Miguel de la Hoya, M. Durán, Ana Osório, Leticia T. Moreno, Anna González‐Neira, Juan Manuel Rosa-Rosa, Olga M. Sinilnikova, Sylvie Mazoyer, John L. Hopper, Conchi Lazaro, Melissa C. Southey, Fabrice Odefrey, Siranoush Manoukian, Irene Catucci, Trinidad Caldés, Henry T. Lynch, Florentine Hilbers, Christi J. van Asperen, Hans F. A. Vasen, David E. Goldgar, Paolo Radice, Peter Devilee, Javier Benı́tez,
The identification of the two most prevalent susceptibility genes in breast cancer, BRCA1 and BRCA2, was the beginning of a sustained effort to uncover new genes explaining the missing heritability in this disease. Today, additional high, moderate and low penetrance genes have been identified in breast cancer, such as P53, PTEN, STK11, PALB2 or ATM, globally accounting for around 35 percent of the familial cases. In the present study we used massively parallel sequencing to analyze 7 BRCA1/BRCA2 ...
Tópico(s): Gene expression and cancer classification
2013 - Public Library of Science | PLoS ONE
Anna González‐Neira, Juan Manuel Rosa-Rosa, Ana Osório, Emilio Esteban, Melissa C. Southey, Olga M. Sinilnikova, Henry T. Lynch, Rogier A. Oldenburg, Christi J. van Asperen, Nicoline Hoogerbrugge, Guillermo Pita, Peter Devilee, David E. Goldgar, Javier Benı́tez,
The recent development of new high-throughput technologies for SNP genotyping has opened the possibility of taking a genome-wide linkage approach to the search for new candidate genes involved in heredity diseases. The two major breast cancer susceptibility genes BRCA1 and BRCA2 are involved in 30% of hereditary breast cancer cases, but the discovery of additional breast cancer predisposition genes for the non-BRCA1/2 breast cancer families has so far been unsuccessful. In order to evaluate the ...
Tópico(s): Genomic variations and chromosomal abnormalities
2007 - BioMed Central | BMC Genomics
Produção Nacional
Revisado por pares
P. Varela‐Centelles, J.L. López-Cedrún, J. Fernández Sanromán, Juan Manuel Romero, Nilce Santos de Melo, Pablo Álvarez-Nóvoa, Isabel Neira Gómez, Juan Manuel Romero,
The aim of this study was to identify key points and time intervals in the patient pathway to the diagnosis of oral cancer, from the detection of a bodily change to the start of treatment. A systematic search of three databases was performed by two researchers independently. Articles reporting original data on patients with symptomatic primary oral or oropharyngeal squamous cell carcinoma that was pathologically confirmed were included. These articles had to include an outcome variable of 'diagnostic ...
Tópico(s): Cancer Diagnosis and Treatment
2016 - Elsevier BV | International Journal of Oral and Maxillofacial Surgery
Kevin McMullan, Mike Brown, Manuel Martín‐Neira, W. Rits, S. Ekholm, Jose Manuel Martí, J. Lemanczyk,
The European Space Agency's Soil Moisture and Ocean Salinity satellite comprises a single payload instrument known as the Microwave Interferometric Radiometer with Aperture Synthesis (MIRAS) coupled to a PROTEUS platform. MIRAS synthesizes a large aperture from a reasonably sized 2-D array of passive microwave radiometers. By using interferometric techniques, the required coverage and spatial resolution can be achieved without the need for a large antenna. This paper describes the MIRAS instrument, ...
Tópico(s): Arctic and Antarctic ice dynamics
2008 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Geoscience and Remote Sensing
Fátima León-Larios, Cecilia Ruiz-Ferrón, Rocio-Marina Jalon-Neira, Juan Manuel Praena‐Fernández,
The emergency contraception pill (ECP) is a non-prescribed medication in Spain. However, there is not enough evidence of its use among young people to define sex education contents. The aims of this research were to describe the experiences of the use of the ECP in university students and analyze their knowledge, attitude, and awareness regarding the ECP. The cross-sectional, analytic study was conducted with nursing degree students at the University of Seville. A total of 478 students answered the ...
Tópico(s): Maternal and Perinatal Health Interventions
2022 - Multidisciplinary Digital Publishing Institute | Journal of Clinical Medicine
Belén Sáenz-Rico de Santiago, Laura Benítez Grobet, Juan Manuel Neira, María Rosa Sobrino Calleja, Estela D'Angelo Menéndez,
El objetivo de este artículo no es otro que el proporcionar a los profesionales de la educación, y en concreto de la enseñanza universitaria, modelos que favorezcan el aprendizaje autónomo, requisito en este nuevo milenio para todo proceso formativo en plena sociedad del conocimiento y la información y desde una dimensión sostenible del Desarrollo. El proyecto de innovación se ha realizado mediante una metodología cualitativa se inicia desde una indagación evaluativa del repertorio de estrategias ...
Tópico(s): Educational Innovations and Technology
2015 - FahrenHouse | Foro de Educación
Jacobo Guiu‐Souto, Sara Neira, Manuel Sánchez-García, Óscar López Pouso, Miguel Pombar, Juan Pardo‐Montero,
Nowadays therapies involving radioiodine (I-131) represent 84% of the total metabolic treatments in Europe, according to the last report of the European Association of Nuclear Medicine in relation to treatment planning for molecular radiotherapy. Last recommendations of the European Council, i.e. 2013/59/Euroatom, mandates that metabolic treatments should be planned according to the radiation doses delivered to individual patients, analogous to external beam radiotherapy. In this work, we present ...
Tópico(s): Radiomics and Machine Learning in Medical Imaging
2018 - IOP Publishing | Journal of Radiological Protection
Flavia Bruna, Katia Fernández, Felipe Urrejola, Jorge Touma, Myriam Navarro, Betsabet Sepúlveda, M. J. Larrazábal, Adrián Paredes, Iván Neira, Matías Ferrando, Manuel I. Osorio, Osvaldo Yáñez, Jéssica Bravo,
Chilean Laureliopsis philippiana has been used in traditional medicine by the Mapuche and their ancestors. To evaluate its pharmacological activity, Laureliopsis philippiana leaf essential oil extract (LP_EO) was chemically and biologically characterized in the present study. In vitro antioxidant potential was analyzed, and antitumor activity was evaluated in non-tumor and tumor cell culture lines. Caenorhabditis elegans was used as a model for evaluating toxicity, and the chemical composition of ...
Tópico(s): Phytochemistry and Bioactivity Studies
2022 - Elsevier BV | Arabian Journal of Chemistry
Hugo Carreño-Luengo, Adriano Camps, Christopher S. Ruf, Nicolas Floury, Manuel Martín‐Neira, Tianlin Wang, S. S. Khalsa, Maria Paola Clarizia, Jennifer Reynolds, Joel T. Johnson, Andrew O’Brien, C. Galdi, M. Di Bisceglie, Andreas Dielacher, Philip Jales, Martin Unwin, Lucinda King, Giuseppe Foti, Rashmi Shah, Daniel Pascual, B. Schreiner, Milad Asgarimehr, Jens Wickert, Serni Ribó, Estel Cardellach,
The Institute of Electrical and Electronics Engineers (IEEE) Geoscience and Remote Sensing Society (GRSS) created the GRSS "Standards for Earth Observation Technical Committee" to advance the usability of remote sensing products by experts from academia, industry, and government through the creation and promotion of standards and best practices. In February 2019, a Project Authorization Request was approved by the IEEE Standards Association (IEEE-SA) with the title "Standard for Spaceborne Global Navigation ...
Tópico(s): Precipitation Measurement and Analysis
2021 - Institute of Electrical and Electronics Engineers | IEEE Access
Francesca Scala, Gabriella Gaias, Camilla Colombo, Manuel Martín‐Neira,
This paper presents a strategy for optimal manoeuvre design of multi-satellite formation flying in low Earth orbit environment, with the aim of providing a tool for mission operation design. The proposed methodology for formation flying manoeuvres foresees a continuous low-thrust control profile, to enable the operational phases. The design is performed starting from the dynamic representation described in the relative orbital elements, including the main orbital perturbations effects. It also exploits ...
Tópico(s): Satellite Communication Systems
2021 - Elsevier BV | Advances in Space Research
José Manuel Tunqui Neira, Vazken Andréassian, Gaëlle Tallec, Jean‐Marie Mouchel,
Abstract. This technical note deals with the mathematical representation of concentration–discharge relationships. We propose a two-sided affine power scaling relationship (2S-APS) as an alternative to the classic one-sided power scaling relationship (commonly known as “power law”). We also discuss the identification of the parameters of the proposed relationship, using an appropriate numerical criterion. The application of 2S-APS to the high-frequency chemical time series of the Orgeval-ORACLE observatory ...
Tópico(s): Electrochemical Analysis and Applications
2020 - Copernicus Publications | Hydrology and earth system sciences
Serni Ribó, Juan Carlos Arco-Fernández, Estel Cardellach, Fran Fabra, Weiqiang Li, O. Nogués‐Correig, A. Rius, Manuel Martín‐Neira,
In this paper, we present the Software PARIS Interferometric Receiver (SPIR), a high-speed GNSS reflectometry recording receiver which has been designed and implemented with the primary goal of demonstrating the synoptic capabilities of the interferometric technique in GNSS Reflectrometry. Thanks to the use of large bandwidth GNSS signals, this technique is advantageous in comparison to the so-called clean-replica processing, when sea surface altimetric applications are pursued. The SPIR receiver ...
Tópico(s): Ocean Waves and Remote Sensing
2017 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Weiqiang Li, Estel Cardellach, Fran Fabra, A. Rius, Serni Ribó, Manuel Martín‐Neira,
Abstract A track of sea ice reflected Global Navigation Satellite System (GNSS) signal collected by the TechDemoSat‐1 mission is processed to perform phase altimetry over sea ice. High‐precision carrier phase measurements are extracted from coherent GNSS reflections at a high angle of elevation (>57°). The altimetric results show good consistency with a mean sea surface (MSS) model, and the root‐mean‐square difference is 4.7 cm with an along‐track sampling distance of ∼140 m and a spatial resolution ...
Tópico(s): Climate change and permafrost
2017 - American Geophysical Union | Geophysical Research Letters
Manuel Martín‐Neira, Roger Oliva, I. Corbella, F. Torres, N. Duffo, I. Durán, Juha Kainulainen, Josep Closa, Alberto Zurita, François Cabot, Ali Khazâal, Éric Anterrieu, José Barbosa, GUILHERME FERREIRA LOPES, J. Tenerelli, Raúl Díez-García, Jorge Fauste, F. Martín-Porqueras, Verónica González‐Gambau, Antonio Turiel, S. Delwart, Raffaele Crapolicchio, Martin Süess,
ESA's Soil Moisture and Ocean Salinity (SMOS) mission, launched 2-Nov-2009, has been in orbit for over 6 years, and its Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) in two dimensions keeps working well. The calibration strategy remains overall as established after the commissioning phase, with a few improvements. The data for this whole period has been reprocessed with a new fully polarimetric version of the Level-1 processor which includes a refined calibration schema for the antenna ...
Tópico(s): Cryospheric studies and observations
2016 - Elsevier BV | Remote Sensing of Environment
Manuel Martín‐Neira, Weiqiang Li, Ana Andres-Beivide, Xabier Ballesteros-Sels,
This paper presents a concept, "Cookie," for a satellite particularly suited for dense spatial sampling by future Global Navigation Satellite Systems (GNSS) remote sensing constellations. Solely based on the reception of the direct and reflected signals transmitted by the GNSS, the satellite can provide observations of the Earth useful for a wide range of scientific and operational applications. The Cookie is capable of receiving direct and reflected signals, in both right- and left-hand circular ...
Tópico(s): GNSS positioning and interference
2016 - Institute of Electrical and Electronics Engineers | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Jens Wickert, Estel Cardellach, Manuel Martín‐Neira, Jorge Bandeiras, Laurent Bertino, Ole Andersen, Adriano Camps, Nuno Catarino, Bertrand Chapron, Fran Fabra, Nicolas Floury, Giuseppe Foti, Christine Gommenginger, Jason Hatton, Per Høeg, Adrian Jäggi, Michael Kern, Tong Lee, Zhijin Li, Hyuk Park, Nazzareno Pierdicca, Gerhard Ressler, A. Rius, Josep Roselló, Jan Saynisch‐Wagner, F. Soulat, C. K. Shum, Maximilian Semmling, Ana Sousa, Jiping Xie, Cinzia Zuffada,
GEROS-ISS stands for GNSS REflectometry, radio occultation, and scatterometry onboard the International Space Station (ISS). It is a scientific experiment, successfully proposed to the European Space Agency in 2011. The experiment as the name indicates will be conducted on the ISS. The main focus of GEROS-ISS is the dedicated use of signals from the currently available Global Navigation Satellite Systems (GNSS) in L-band for remote sensing of the Earth with a focus to study climate change. Prime mission ...
Tópico(s): Precipitation Measurement and Analysis
2016 - Institute of Electrical and Electronics Engineers | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Weiqiang Li, Fran Fabra, Dongkai Yang, A. Rius, Manuel Martín‐Neira, Cong Yin, Qiang Wang, Yunchang Cao,
Sea surface-reflected signals of global navigation satellite system (GNSS) were collected during a coastal experiment to evaluate the potential use of these signals on typhoon investigation. This work focuses on processing the signals from BeiDou geostationary Earth orbit (GEO) satellites and assessing the sensitivities of waveform observables to the wind speed evolution during the typhoons. After the processing of the raw samples, both the delay- and spectral-related observables are obtained from ...
Tópico(s): Synthetic Aperture Radar (SAR) Applications and Techniques
2016 - Institute of Electrical and Electronics Engineers | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Susanne Mecklenburg, Matthias Drusch, Lars Kaleschke, Nemesio Rodríguez-Fernández, Nicolás Reul, Yann H. Kerr, Jordi Font, Manuel Martín‐Neira, Roger Oliva, Elena Daganzo-Eusebio, J.P. Grant, R. Sabia, Giovanni Macelloni, Kimmo Rautiainen, Jorge Fauste, Patricia de Rosnay, Joaquín Muñoz‐Sabater, Niko E. C. Verhoest, Hans Lievens, S. Delwart, Raffaele Crapolicchio, Antonio de la Fuente, Mariano Kornberg,
The Soil Moisture and Ocean Salinity (SMOS) mission, launched in November 2009, is the European Space Agency's (ESA) second Earth Explorer Opportunity mission. The scientific objectives of the SMOS mission directly respond to the need for global observations of soil moisture and ocean salinity, two key variables used in predictive hydrological, oceanographic and atmospheric models. SMOS observations also provide information on vegetation, in particular plant available water and water content in a ...
Tópico(s): Cryospheric studies and observations
2016 - Elsevier BV | Remote Sensing of Environment