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Aproximadamente 4624 registro(s) hasta el momento: (journal)

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Recurso libre

The role of an experimental component in the analytic classrooms of minority-language students /
Fazio, Lucy, 1947-

Formato:	Electronic Thesis or Dissertation
Enlaces:	This study, undertaken in the classrooms of minority-language students in French-language schools in Montreal, aims to test Stern's (1990, 1992) proposal for integrating analytic and experiential teaching strategies in second language pedagogy. A related objective seeks to establish the pedagogical…
Fecha:	1999
Recurso:	McGill University - MCGILL

Recurso libre

Scatter factors and peak scatter factors for cobalt-60, 6 MV, 10, and 18 MV photon beams
Abdel-Rahman, Wamied.

Formato:	Electronic Thesis or Dissertation
Enlaces:	The aim of external beam radiotherapy is to deliver a prescribed dose to a target volume accurately and uniformly while sparing the surrounding healthy tissue. In radiation dosimetry calculations, many functions are employed to achieve this goal, and the Peak…
Fecha:	1999
Recurso:	McGill University - MCGILL

Recurso libre

Silver halide sensitized gelatin holograms in Slavich PFG-01 red-sensitive emulsion
Beléndez Vázquez, Augusto - Neipp López, Cristian - Pascual Villalobos, Inmaculada

Formato:	info:eu-repo/semantics/article
Enlaces:	Silver halide sensitized gelatin (SHSG) is an interesting technique for the production of holographic optical elements. It combines the high sensitivity of photographic emulsions with the well-known low scattering and high diffraction efficiency corresponding to dichromated gelatin. In this paper…
Fecha:	2009-02-02
Recurso:	RUA Docencia

Recurso libre

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

Formato:	info:eu-repo/semantics/article
Enlaces:	The electrochemical oxidation of serine and alanine was performed at Pt(100) and Pt(110) electrodes and analysed by means of FTIR spectroscopy and cyclic voltammetry. The open circuit adsorption of both amino acids was also investigated. The oxidation of serine gives…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

Oxidation of methylamine and ethylamine on Pt single crystal electrodes in acid medium
Huerta Arráez, Francisco - Morallón Núñez, Emilia - Pérez Martínez, Juan Manuel - Vázquez Picó, José Luis - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	Cyclic voltammetry (CV) and Fourier transform infrared reflection-absorption spectroscopy (FT-IRRAS) have been combined to analyse the oxidation of methylamine and ethylamine on platinum single crystal electrodes in an acidic medium. The oxidation of both amines on Pt(hkl) electrodes gives rise…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

The adsorption of methylamine on Pt single crystal surfaces
Huerta Arráez, Francisco - Morallón Núñez, Emilia - Quijada Tomás, César - Vázquez Picó, José Luis - Pérez Martínez, Juan Manuel - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	The irreversible adsorption of methylamine at platinum single-crystal electrodes has been studied by a combination of electrochemical and in situ spectroscopic techniques. From purely electrochemical data, it has been stated that the adsorption of CH3NH2 molecules results in significant alteration…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

Influence of the gaze-stabilizing eye movements on the quality of the retinal image of the human eye
Pons Moreno, Álvaro Máximo - Lorente Velázquez, Amalia - Illueca Contri, Carlos - Artigas Verde, José María - Felipe Marcet, Adelina

Formato:	info:eu-repo/semantics/article
Enlaces:	In this work we have studied the influence of the gaze stabilizing movements of the eye on the quality of the retinal image of the human eye obtained by double pass methods. The results obtained agree with the expected differences…
Fecha:	2007-10-16
Recurso:	RUA Docencia

Recurso libre

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

Étude de viabilité d'un traitement des eaux résiduaires industrielles par voie electrochimique: un exemple réel
Montiel Leguey, Vicente - García García, Vicente - González García, José - Pérez Mallol, José Ramón - Sánchez Cano, Gaspar - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	Industrial wastewater with a high value of CDO (Chemical Demand of Oxygen e. g. - 100 000 mg.l-1) was treated by electrolysis. The pH, temperature and anode material of the electrolysis process have been optimized. It was shown that the…
Fecha:	2009-02-05
Recurso:	RUA Docencia

Recurso libre

10.

Letter from San José: The internet global summit.
Cisler, Steve

Formato:
Enlaces:	Publicado en: First Monday. Peer-Reviewed Journal on the Internet. Volume 4 Number 7 - July 5th 1999. http://www.firstmonday.org, cisler@pobox.com, Nivel monográfico
Fecha:	2006-07-26
Recurso:	Universidad de los Andes Venezuela