Metabuscador

Filtrado por:

Temas

Idiomas

Inglés (22)
Más...

Año

2011 (3)
2010 (1)
2009 (8)
2008 (6)
2007 (4)
1999 (5)
Más...

Aproximadamente 22 registro(s) hasta el momento: (journal)

Mostrar 10 | 50 | 100 resultados por página

Recurso libre

High-efficiency silver-halide sensitized gelatin holograms with low absorption and scatter
Beléndez Vázquez, Augusto - Neipp López, Cristian - Flores, Marcos - Pascual Villalobos, Inmaculada

Formato:	info:eu-repo/semantics/article
Enlaces:	We report for the first time the results of a comparative performance study of silver-halide sensitized gelatin (SHSG) holograms recorded in the familiar Agfa 8E75 HD plates and the new BB-640 plates manufactured by Holographic Recording Technologies. High diffraction efficiency…
Fecha:	2009-02-03
Recurso:	RUA Docencia

Recurso libre

Organizational culture for innovation and new technological behavior
Claver Cortés, Enrique - Llopis Taverner, Juan - García Bravo, Daniel - Molina Manchón, Hipólito

Formato:	info:eu-repo/semantics/article
Enlaces:	Technological innovation requires a technical preparation in material, financial and human resources. However, without a clear corporate culture, the technical side of technological innovation will hardly develop in a satisfactory manner. In this light, we analyze the origin of a…
Fecha:	2007-09-12
Recurso:	RUA Docencia

Recurso libre

Communicating culture: a reinforcement process model
Claver Cortés, Enrique - Llopis Taverner, Juan - Gascó Gascó, José Luis

Formato:	info:eu-repo/semantics/article
Enlaces:	In this article, after laying the conceptual foundations of communication and corporate culture, we revise the disagreement on whether their role in their mutual relationship is a minor or a fundamental one. Then, we define “communication in corporate culture”, as…
Fecha:	2011-05-16
Recurso:	RUA Docencia

Recurso libre

A voltammetric and FTIR–ATR study of the electropolymerization of phenol on platinum electrodes in carbonate medium Influence of sulfide
Lapuente Aragó, Rocío - Cases Iborra, Francisco Javier - Garcés Terradillos, Pedro - Morallón Núñez, Emilia - Vázquez Picó, José Luis

Formato:	info:eu-repo/semantics/article
Enlaces:	Voltammetry and FTIR–ATR techniques have been employed to investigate polyphenol films formed on platinum surfaces by electrochemical oxidation of phenol. The media used in the electropolymerization were aqueous carbonate solutions, with and without Na2S. The polymeric films created are not…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

Effects of ultrasound on the electrodeposition of lead dioxide on glassy carbon electrodes
González García, José - Iniesta Valcárcel, Jesús - Aldaz Riera, Antonio - Montiel Leguey, Vicente

Formato:	info:eu-repo/semantics/article
Enlaces:	The electrodeposition of lead dioxide from lead(II) nitrate in an acid medium has been used as a test reaction to study the effects of an ultrasound field. The different behaviours found between platinum and glassy carbon electrodes have been compared…
Fecha:	2008-11-04
Recurso:	RUA Docencia

Recurso libre

Copying low spatial frequency holograms in silver halide emulsions: the influence of the bleach bath
Márquez Ruiz, Andrés - Pascual Villalobos, Inmaculada - Fimia Gil, Antonio - Beléndez Vázquez, Augusto - Campos Coloma, Juan - Yzuel Giménez, María Josefa

Formato:	info:eu-repo/semantics/article
Enlaces:	We present an available and low cost technique for the production of binary-phase diffractive optical elements designed by digital methods. We produce binary-amplitude holograms making use of a high-resolution graphic device. They are used as binary masks which are copied…
Fecha:	2009-05-20
Recurso:	RUA Docencia

Recurso libre

And now - the next 50 years! A new editorial team takes over
Álvarez-Dardet Díaz, Carlos - Ashton, John R.

Formato:	info:eu-repo/semantics/article
Enlaces:	Descripción completa.
Fecha:	2011-05-13
Recurso:	RUA Docencia

Recurso libre

Fresnel diffraction in a theoretical eye: a fractional Fourier transform approach
Pons Moreno, Álvaro Máximo - Lorente Velázquez, Amalia - Illueca Contri, Carlos - Mas Candela, David - Artigas Verde, José María

Formato:	info:eu-repo/semantics/article
Enlaces:	In this work, we have applied the fractional Fourier transform to obtain the Fresnel diffraction patterns in a theoretical eye. The FRT approach to Fresnel diffraction is easily implemented in a Gullstrand-Emsley theoretical eye, and it allows us to obtain…
Fecha:	2007-10-16
Recurso:	RUA Docencia

Recurso libre

Method for the characterization of hologram processing
Bányász, Istvan - Beléndez Vázquez, Augusto - Pascual Villalobos, Inmaculada - Fimia Gil, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	A novel method for the characterization of the processing of both absorption and phase holograms is proposed. Differently from the previous models, the square root of the diffraction efficiency of the processed hologram was directly related to the amplitude of…
Fecha:	2009-02-02
Recurso:	RUA Docencia

Recurso libre

10.

Comparison of nonlinear characteristics of phase holograms processed by various combinations of developers and bleaching agents
Bányász, Istvan - Beléndez Vázquez, Augusto - Pascual Villalobos, Inmaculada - Fimia Gil, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	Optical densities before bleaching and final Lin curves of planewave phase holograms recorded in Agfa—Gevaert 8E75HD emulsions were measured for various combinations of developers (AAC, Pyrogallol and Catechol) and bleaching agents (R-9 and EDTA). To characterize the processing, the square…
Fecha:	2009-02-02
Recurso:	RUA Docencia

Recurso libre

11.

High-energy sensitivity enhancement in panchromatic photopolymers for holography using a mixture of visiblelight photoinitiators
Fimia Gil, Antonio - Mateos Álvarez, Felipe - Mallavia Marín, Ricardo - Blaya Escarre, Salvador - Beléndez Vázquez, Augusto - Sastre Muñoz, Roberto - Amat Guerri, Francisco

Formato:	info:eu-repo/semantics/article
Enlaces:	A new aqueous photopolymer containing the monomers acrylamide, N,N'-methylenbisacrylamide and zinc acrylate, the initiators 4,5-diiodosuccinylfluorescein (2ISF) and methylene blue (MB), and the coinitiator sodium p-toluenesulphinate is described. This formulation exhibits a clear enhancement of the high-energy sensitivity upon irradiation with…
Fecha:	2009-02-03
Recurso:	RUA Docencia

Recurso libre

12.

Characterization of calcineurin in human neutrophils: inhibitory effect of hydrogen peroxide on its enzyme activity and on NF-κB DNA binding
Carballo Álvarez, Modesto - Márquez, Gracia - Conde, Manuel - Martín Nieto, José - Monteseirín Mateo, Javier - Conde Hernández, José - Pintado Sanjuan, Elizabeth - Sobrino Beneyto, Francisco

Formato:	info:eu-repo/semantics/article
Enlaces:	We describe here a specific calcineurin activity in neutrophil lysates, which is dependent on Ca2+, inhibited by trifluoroperazine, and insensitive to okadaic acid. Immunoblotting experiments using a specific antiserum recognized both the A and B chains of calcineurin. Neutrophils treated…
Fecha:	2009-02-23
Recurso:	RUA Docencia

Recurso libre

13.

Characterization and stability of doped SnO2 anodes
Vicent Velasco, Francisco - Morallón Núñez, Emilia - Quijada Tomás, César - Vázquez Picó, José Luis - Aldaz Riera, Antonio - Cases Iborra, Francisco Javier

Formato:	info:eu-repo/semantics/article
Enlaces:	Doped tin dioxide electrodes have been prepared by a standard spray pyrolysis technique. The electrochemical behaviour of these electrodes has been investigated by cyclic voltammetry in sulphuric acid using the Fe2+/Fe3+ redox couple system as test reaction. Oxygen evolution has…
Fecha:	2008-08-04
Recurso:	RUA Docencia

Recurso libre

14.

A new species of Fianoniella (Hymenoptera: Ichneumonidae) from the Columbretes Islands (Spain), with additional notes on F. laeviscutum
Bordera Sanjuán, Santiago

Formato:	info:eu-repo/semantics/article
Enlaces:	Fianoniella stenognatha sp. n. from the Columbretes Islands (Castellón, Spain) is described and illustrated. The new species is distinguished by its longer and narrower mandibles with parallel or divergent rims in the apical half, wider clypeus, hind ocelli more separated…
Fecha:	2009-02-13
Recurso:	RUA Docencia

Recurso libre

15.

Visualization of the UF polarized layer by holographic interferometry
Fernández Torres, María José - Ruiz Beviá, Francisco - Fernández Sempere, Julio - López Leiva, Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	The technique of holographic inte rferometly used to visualize the ultrafiltration membrane surroundings makes it possible to visualize solute retention and verifi whether or not there is cake formation on the membrane surface during the ultrafiltration of bovine serum albumin…
Fecha:	2007-11-03
Recurso:	RUA Docencia

Recurso libre

16.

Characterization of a carbon felt electrode: structural and physical properties
González García, José - Bonete Ferrández, Pedro - Expósito Rodríguez, Eduardo - Montiel Leguey, Vicente - Aldaz Riera, Antonio - Torregrosa Maciá, Rosa

Formato:	info:eu-repo/semantics/article
Enlaces:	The aim of this paper is the characterization of a carbon felt (Le Carbone Lorraine, RVC 4002) to be used as three-dimensional electrode. A wide group of very different techniques were used in the physical and structural characterization of this…
Fecha:	2008-11-03
Recurso:	RUA Docencia

Recurso libre

17.

Recovery by means of electrodialysis of an aromatic amino acid from a solution with a high concentration of sulphates and phosphates
Montiel Leguey, Vicente - García García, Vicente - González García, José - Carmona, F. - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	In the industrial obtention of D-a-p-hydroxyphenylglycine the separation of the amino acid is carried out by precipitation and during this process, a mother liquor is produced with a high salt content (phosphates and sulphates) and an amino acid concentration of…
Fecha:	2008-11-04
Recurso:	RUA Docencia

Recurso libre

18.

Life history and description of the immature stages of Eumerus purpurariae (Diptera: Syrphidae) developing in Opuntia maxima
Pérez Bañón, Celeste - Marcos García, María Ángeles

Formato:	info:eu-repo/semantics/article
Enlaces:	Eumerus purpurariae, described from the Canary Islands (Atlantic), has been reared from the stems (platyclades) of the cactus Opuntia maxima (the first know host) on Nueva Tabarca, a Mediterranean island close to the Iberian coast. The egg, larva and puparium…
Fecha:	2009-11-04
Recurso:	RUA Docencia

Recurso libre

19.

Electrochemical behaviour of amino acids on Pt(hkl): a voltammetric and in situ FTIR study. Part III. Glycine on Pt(100) and Pt(110)
Huerta Arráez, Francisco - Morallón Núñez, Emilia - Vázquez Picó, José Luis - Pérez Martínez, Juan Manuel - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	The electrochemical behaviour of glycine on well-defined Pt(100) and Pt(110) electrodes has been studied in an acid medium by means of cyclic voltammetry and in situ FTIR spectroscopy. The results presented in this paper and those reported previously for the…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

20.

Efﬁciency of T4 Gene 60 Translational Bypassing
Maldonado Caro, Rafael Diego - Herr, Alan J.

Formato:	info:eu-repo/semantics/article
Enlaces:	Ribosomes translating bacteriophage T4 gene 60 mRNA bypass 50 noncoding nucleotides from a takeoff site at codon 46 to a landing site just upstream of codon 47. A key signal for efficient bypassing is contained within the nascent peptide synthesized…
Fecha:	2007-11-30
Recurso:	RUA Docencia

Recurso libre

21.

Evaluation of a microwave desolvation system in inductively coupled plasma mass spectrometry with low acid concentration solutions
Mora Pastor, Juan - Hernandis Martínez, Vicente - Veen, Eric H. van - Loos-Vollebregt, Margaretha T.C. de

Formato:	info:eu-repo/semantics/article
Enlaces:	The behaviour of a desolvation system based on microwave heating (termed a microwave desolvation system, MWDS) with low acid concentration solutions was evaluated in inductively coupled plasma mass spectrometry. Studies included water, sulfuric acid, perchloric acid, nitric acid and hydrochloric…
Fecha:	2010-03-16
Recurso:	RUA Docencia

Recurso libre

22.

Circuitry and role of substance P-immunoreactive neurons in the primate retina
Cuenca Navarro, Nicolás - Kolb, Helga

Formato:	info:eu-repo/semantics/article
Enlaces:	In this paper, we extend our previous light microscopic (LM) study of substance P (SP)-containing amacrine and ganglion cell types of the human retina (Cuenca et al. [1995] J. Comp. Neurol. 356:491–504) to an electron microscopic (EM) and confocal-imaging study…
Fecha:	2011-03-26
Recurso:	RUA Docencia