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Listar por palabra clave "Controlled study"

Mostrando ítems 1-20 de 53

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"PINOT": Time-Resolved Parallel Magnetic Resonance Imaging With a Reduced Dynamic Field of View

Hamilton, Lei Hou; Acebrón Fabregat, Javier; Moratal Pérez, David; Ramamurthy, Senthil; Lerakis, Stamatios; Parks, W. James; Sallee, Denver; Brummer, Marijn E. (Wiley, 2011-04)

This article introduces a novel method named "Parallel Imaging and Noquist in Tandem" (PINOT) for accelerated image acquisition of cine cardiac magnetic resonance imaging. This method combines two prior information formalisms, ...
A permeable cuticle is associated with the release of reactive oxygen species and induction of innate immunity

L'Haridon, Floriane; Besson-Bard, Angelique; Binda, Matteo; Serrano Mateo, Mario; Abou-Mansour, Eliane; Balet, Francine; Schoonbeek, Henk-Jan; Hess, Stephane; Mir Moreno, Ricardo; Leon Ramos, Jose; Lamotte, Olivier; Metraux, Jean-Pierre (Public Library of Science, 2011)

[EN] Wounded leaves of Arabidopsis thaliana show transient immunity to Botrytis cinerea, the causal agent of grey mould. Using a fluorescent probe, histological staining and a luminol assay, we now show that reactive oxygen ...
A statistical design of experiments for optimizing the MALDI-TOF-MS sample preparation of polymers. An application in the assessment of the thermo-mechanical degradation mechanisms of poly (ethylene terephthalate)

Badía Valiente, José David; Strömberg, Emma Marie; Ribes Greus, María Desamparados; Karlsson, Sigbritt (ELSEVIER SCIENCE BV, 2011)

[EN] The sample preparation procedure for MALDI-TOF MS of polymers is addressed in this study by the application of a statistical Design of Experiments (DoE). Industrial poly (ethylene terephthalate) (PET) was chosen as ...
Analysing the Spanish smoke-free legislation of 2006: A new method to quantify its impact using a dynamic model

Guerrero Cortina, Francisco; Santonja, Francisco-José; Villanueva Micó, Rafael Jacinto (Elsevier, 2011-07)

Background: There are many models that study aspects of smoking habits: the influence of price, tax, relapse time, and the effects of prohibition. There are also studies examining the effects of the Spanish smoke-free law. ...
Analysis of the prognostic value of soluble epidermal growth factor receptor plasma concentration in advanced non-small-cell lung cancer patients

Jantus Lewintre, Eloisa; Sirera Pérez, Rafael; Cabrera, Andrea; Blasco, Ana; Caballero, Cristina; Iranzo, Vega; Rosell, Rafael; Camps, Carlos (Elsevier, 2011-09)

[EN] Background: Epidermal growth factor receptor (EGFR) is overexpressed in a variety of epithelial malignancies including lung cancer. A soluble fragment of the EGFR extracellular domain (sEGFR) can be detected in the ...
Assessment of brown trout habitat suitability in the Jucar River Basin (SPAIN): Comparison of data-driven approaches with fuzzy-logic models and univariate suitability curves

Muñoz Mas, Rafael; Martinez-Capel, Francisco; Schneider, Matthias; Mouton, Ans M. (Elsevier, 2012)

The implementation of the Water Framework Directive implies the determination of an environmental flow (E-flow) in each running water body. In Spain, many of the minimum flow assessments were determined with the physical ...
Bio-Photonic Sensing Cells over transparent substrates for anti-gestrinone antibodies biosensing

Sanza, F.J.; Holgado, M.; Ortega Higueruelo, Francisco José; Casquel Del Campo, Rafael; López-Romero, D.; Bañuls Polo, Mª José; Laguna, Mari Fe; Barrios, C.A.; Puchades Pla, Rosa; Maquieira Catala, Ángel (Elsevier, 2011)

[EN] In a previous work we introduced the term Bio-Photonic Sensing Cells (BICELLs), referred to periodic networks of nano-pillar suitable for biosensing when are vertically interrogated. In this article, we demonstrate ...
Carnosic acid-rich rosemary (Rosmarinus officinalis L.) leaf extract limits weight gain and improves cholesterol levels and glycaemia in mice on a high-fat diet

Ibarra, Alvin; Cases, Julien; Roller, Marc; Chiralt, A.; Coussaert, Aurélie Coussaert; Ripoll, Christophe (Cambridge University Press, 2011)

Rosemary (Rosmarinus officinalis L.) extracts (RE) are natural antioxidants that are used in food, food supplements and cosmetic applications; exert anti-inflammatory and anti-hyperglycaemic effects; and promote weight ...
Chemometric approaches to improve PLSDA model outcome for predicting human non-alcoholic fatty liver disease using UPLC-MS as a metabolic profiling tool

Quintás, Guillermo; Portillo Poblador, Nuria; García Cañaveras, Juan Carlos; Castell, José Vicente; Ferrer, Alberto; Lahoz, Agustín (Springer Verlag (Germany), 2012-02)

An MS-based metabolomics strategy including variable selection and PLSDA analysis has been assessed as a tool to discriminate between non-steatotic and steatotic human liver profiles. Different chemometric approaches for ...
Circulating DNA is a useful prognostic factor in patients with advanced non-small cell lung cancer

Sirera Pérez, Rafael; Bremnes, Roy M.; Cabrera, Andrea; Jantus Lewintre, Eloisa; Sanmartin, Elena; Blasco, Ana; del Pozo, Nieves; Rosell, Rafael; Guijarro, Ricardo; Galbis, Jose; Sanchez, Jose Javier; Camps, Carlos (Lippincott, Williams & Wilkins, 2011-02)

Background: Circulating DNA is observed at higher concentrations in patients with lung cancer than in controls. Qualitative and quantitative analysis of circulating DNA is a promising noninvasive tool. Our aim was to ...
Classification of paroxysmal and persistent atrial fibrillation in ambulatory ECG recordings

Alcaraz, Raúl; Sandberg, Frida; Sornmo, Leif; Rieta Ibañez, José Joaquín (Institute of Electrical and Electronics Engineers (IEEE), 2011-05)

The problem of classifying short atrial fibrillatory segments in ambulatory ECG recordings as being either paroxysmal or persistent is addressed by investigating a robust approach to signal characterization. The method ...
Coating typologies and constrained swelling of hyaluronic acid gels within scaffold pores

Arnal Pastor, María Pilar; Vallés Lluch, Ana; Keicher, Matthias; Monleón Pradas, Manuel (Elsevier, 2011)

[EN] A set of elastomeric scaffolds with a well defined porous structure was prepared with a template leaching procedure and coated with hyaluronic acid solutions. Depending on the coating process parameters the hyaluronic ...
Comparative study of approximate entropy and sample entropy robustness to spikes

Molina Picó, Antonio; Cuesta Frau, David; Riobo Aboy, Pedro Mateo; Crespo Sánchez, María Cristina; Miró Martínez, Pau; Oltra Crespo, Sandra (Elsevier, 2011-10)

Objective: There is an ongoing research effort devoted to characterize the signal regularity metrics approximate entropy (ApEn) and sample entropy (SampEn) in order to better interpret their results in the context of ...
Development of a chemiluminescence-based quantitatve lateral flow immunoassay for on-field detection of 2,4,6-trinitrotoluene

Mirasoli, Mara; Buragina, Angela; Dolci, Luisa Stella; Guardigli, Massimo; Simoni, Patrizia; Montoya Baides, Ángel; Maiolini, Elisabetta; Girotti, Stefano; Roda, Aldo (ELSEVIER SCIENCE BV, 2012)

[EN] Simple, rapid and highly sensitive assays, possibly allowing on-site analysis, are required in the security and forensic fields or to obtain early signs of environmental pollution. Several bioanalytical methods and ...
Development of a dielectric spectroscopy technique for the determination of key bichemical markers of meat quality

Castro Giráldez, Marta; Dols, Laura; Toldrá Vilardell, Fidel; Fito Maupoey, Pedro (Elsevier, 2011-07-01)

[EN] Dielectric measurements of different standard solutions (nucleotides, nucleosides, lactic acid and myoglobin) were assayed simulating the concentrations of these substances in early postmortem meat. These assays were ...
Development of oligonucleotide microarrays onto si-based surfaces via thioether linkage mediated by UV irradiation

Escorihuela Fuentes, Jorge; Bañuls Polo, Mª José; Puchades Pla, Rosa; Maquieira Catala, Ángel (American Chemical Society, 2012)

Selective covalent immobilization of thiolated oligonucleotides onto an epoxy-functionalized silicon-substrate can be achieved via light radiation (365 nm). Following this approach, thiol-modified oligonucleotide probes ...
Diagnóstico etilógico de la disfunción ventricular izquierda con tomografia computerizada: comparación con coronariografía y cardiorresonancia

Estornell-Erill, Jordi; Igual-Muñoz, Begoña; Monmeneu-Menadas, Jose Vicente; Soriano-Navarro, Carlos; Valle-Muñoz, Alfonso; Vilar Herrero, Juan V.; Perez-Bosca, Leandro; Paya-Serrano, Rafael; Martínez Alzamora, Mª Nieves; Ridocci-Soriano, Francisco (Elsevier, 2012)

[EN] Introduction and objectives: To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and ...
Direct hapten-linked multiplexed immunoassays on polycarbonate surface

Tamarit López, Jesús; Morais Ezquerro, Sergi Beñat; Puchades Pla, Rosa; Maquieira Catala, Ángel (Elsevier, 2011-01-15)

Direct hapten-linked multiplexed immunoassay is developed on the polycarbonate surface of standard Digital Versatile Discs (DVDs) for six compounds of environmental concern, as proof of concept. Carboxylated haptens are ...
Effect of host species on the distribution of mutational fitness effects for an RNA virus

Lalic ., Jasna; CUEVAS, J.M; Elena Fito, Santiago Fco (Public Library of Science, 2011-10-17)

Knowledge about the distribution of mutational fitness effects (DMFE) is essential for many evolutionary models. In recent years, the properties of the DMFE have been carefully described for some microorganisms. In most ...
Effect of pH and nitrite concentration on nitrite oxidation rate

Jiménez Douglas, Emérita; Giménez García, Juan Bautista; Ruano García, María Victoria; FERRER, J.; Serralta Sevilla, Joaquín (Elsevier, 2011-07-29)

The effect of pH and nitrite concentration on the activity of the nitrite oxidizing bacteria (NOB) in an activated sludge reactor has been determined by means of laboratory batch experiments based on respirometric techniques. ...