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Aproximadamente 30 registro(s) hasta el momento: (journal)

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Recurso libre

Electronic stopping cross sections for protons in Al2O3: an experimental and theoretical study
Behar, Moni - Fadanelli, Raúl C. - Nagamine, Luiz C.C.M. - Cantero, E.D. - Lantschner, Gerardo H. - Eckardt, Juan C. - Arista, Néstor R. - García Molina, Rafael - Abril Sánchez, Isabel

Formato:	info:eu-repo/semantics/article
Enlaces:	The electronic stopping cross section (SCS) of Al2O3 for proton beams is studied both experimentally and theoretically. The measurements are made for proton energies from 40 keV up to 1 MeV, which cover the maximum stopping region, using two experimental…
Fecha:	2012-12-03
Recurso:	RUA Docencia

Recurso libre

Impact of cumulative area-based adverse socioeconomic environment on body mass index and overweight
Regidor Poyatos, Enrique - Gutiérrez Fisac, Juan Luis - Ronda Pérez, Elena - Calle Purón, María Elisa - Martínez Hernández, David - Domínguez Rojas, Vicente

Formato:	info:eu-repo/semantics/article
Enlaces:	Objective: Although the relationship between area socioeconomic environment and obesity is known, previous research has measured area socioeconomic environment at only one point in time. This study evaluates the relationship of cumulative area-based adverse socioeconomic environment with body mass index…
Fecha:	2008-10-29
Recurso:	RUA Docencia

Recurso libre

Principles of the Olympic movement
Durántez Corral, Conrado - Pérez Turpin, José Antonio - Martínez Vidal, Aurora - Mateos Padorno, Covadonga - Martínez Patiño, María José - González Molina, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	The aim of this article is to clarify, review and reflect on the importance of the Olympic movement main principles on nowadays sporting society. For this purpose, the paper goes through the contents of the Olympic Charter, the threats to…
Fecha:	2010-01-26
Recurso:	RUA Docencia

Recurso libre

Ética en publicidad online, Ethics in online advertising
Castelló Martínez, Araceli

Formato:	info:eu-repo/semantics/article
Enlaces:	La consolidación de Internet como soporte publicitario obliga a una revisión de los principios legales y éticos aplicables a las iniciativas publicitarias en el mundo digital, teniendo en cuenta además las peculiaridades de nuevos espacios digitales como los Social Media.,…
Fecha:	2011-03-17
Recurso:	RUA Docencia

Recurso libre

Coprology of Panthera tigris altaica and Felis bengalensis euptilurus from the Russian Far East, Coprología de Panthera tigris altaica y Felis Bengalensis euptilurus del Extremo Oriente ruso
González, P. - Carbonell Baldoví, Enrique - Urios Moliner, Vicente - Rozhnov, Vyacheslav V.

Formato:	info:eu-repo/semantics/article
Enlaces:	Fecal samples from the Siberian tiger (Panthera tigris altaica) and the Amur cat (Felis bengalensis euptilurus) from Far Eastern Russia, were examined for parasites. A natural sedimentation methodology was used and a complete examination of all the sediment was performed.…
Fecha:	2008-07-26
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

Kinetics of pyrolysis and combustion of pine needles and cones
Font Montesinos, Rafael - Conesa Ferrer, Juan Antonio - Moltó Berenguer, Julia - Muñoz Fernández, María

Formato:	info:eu-repo/semantics/article
Enlaces:	A wide kinetic study has been carried out under different conditions in TG and TG–MS for each material, at different operating conditions. Runs were carried out at three different atmospheres: N2, N2:O2 4:1 and N2:O2 9:1. In addition to the…
Fecha:	2009-10-23
Recurso:	RUA Docencia

Recurso libre

Complementary resources and capabilities for an ethical and environmental management: a qual/quan study
López Gamero, María Dolores - Claver Cortés, Enrique - Molina Azorín, José Francisco

Formato:	info:eu-repo/semantics/article
Enlaces:	Managers’ commitment to contribute to sustainable development holds the key to their long-term business success and may be a source of competitive advantage. The managerial perception of business ethics is influenced by the level of moral development and personal characteristics…
Fecha:	2009-11-10
Recurso:	RUA Docencia

Recurso libre

10.

English as a foreign language in the EU: preliminary analysis of the difference in proficiency levels among the member states
Rubio Alcalá, Fernando D. - Martínez Lirola, María

Formato:	info:eu-repo/semantics/article
Enlaces:	Recent research about languages in the EU has reported that English is the most widely known language besides the mother tongue in the EU member states, and it is also the most widely spoken language at country level in sixteen…
Fecha:	2011-02-10
Recurso:	RUA Docencia

Recurso libre

11.

Role of motivation in artistic gymnastics by results of a questionnaire based international survey
Munkácsi, István - Kalmár, Zsuzsa - Hamar, Pál - Katona, Zsolt - Dancs, Henriette

Formato:	info:eu-repo/semantics/article
Enlaces:	The hardest part of coaching work is the psychological preparation of athletes and gymnasts, where the aim is to achieve higher performance. Motivation – as the driving force of our actions – has an increased role in preparing the gymnasts,…
Fecha:	2012-03-09
Recurso:	RUA Docencia

Recurso libre

12.

The examination of physical education performance with relation to the social background and nutrition
Borkovits, Margit

Formato:	info:eu-repo/semantics/article
Enlaces:	The successfulness of students at school is influenced by how the knowledge is attained. Family, media and the same age groups largely contribute to it. The recent Hungarian practice of home training is not so much attractive. A family is…
Fecha:	2013-09-04
Recurso:	RUA Docencia

Recurso libre

13.

Chemical modification of styrene –butadiene –styrene (SBS) rubber by reactive grafting with maleic anhydride
Lasalle, Verónica Leticia - Failla, Marcelo Daniel - Vallés, Enrique Marcelo - Cepeda Jiménez, Carmen María - Torregrosa Maciá, Rosa - Martín Martínez, José Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	A procedure to increase the adhesion of block styrene–butadiene–styrene (SBS) rubber consisting of the reactive grafting with maleic anhydride (MA) in the presence of an organic peroxide radical initiator is proposed. The influence of the reactive grafting on the surface…
Fecha:	2007-10-31
Recurso:	RUA Docencia

Recurso libre

14.

An MDA approach for goal-oriented requirement analysis in Web engineering
Aguilar Calderón, José Alfonso - Garrigós Fernández, Irene - Mazón López, José Norberto - Trujillo Mondéjar, Juan Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	Web designers usually ignore how to model real user expectations and goals, mainly due to the large and heterogeneous audience of the Web. This fact leads to websites which are difficult to comprehend by visitors and complex to maintain by…
Fecha:	2012-03-08
Recurso:	RUA Docencia

Recurso libre

15.

Imitation system for humanoid robotics heads
Cid Burgos, Felipe - Prado, José Augusto - Manzano Gómez, Pablo - Bustos García de Castro, Pablo - Núñez Trujillo, Pedro

Formato:	info:eu-repo/semantics/article
Enlaces:	This paper presents a new system for recognition and imitation of a set of facial expressions using the visual information acquired by the robot. Besides, the proposed system detects and imitates the interlocutor’s head pose and motion. The approach described…
Fecha:	2013-01-23
Recurso:	RUA Docencia

Recurso libre

16.

Properties of thermoplastic polyurethane adhesives containing nanosilicas with different specific surface area and silanol contentand silanol content
Vega Baudrit, José - Sibaja Ballestero, María - Vázquez, Patricia - Torregrosa Maciá, Rosa - Martín Martínez, José Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	Thermoplastic polyurethane (TPU) adhesives containing nanosilicas with different specific surface area and silanol group content were prepared and characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), thermogravimetry (TGA), X-ray diffraction, plate-plate rheology, dynamical–mechanical–thermal analysis (DMTA), transmission electron microscopy (TEM), and…
Fecha:	2007-10-31
Recurso:	RUA Docencia

Recurso libre

17.

Sensitivity analysis in linear semi-infinite programming: perturbing cost and right-hand-side coefficients
Goberna Torrent, Miguel Ángel - Gómez, Soraya - Guerra, Francisco - Todorov, Maxim I.

Formato:	info:eu-repo/semantics/article
Enlaces:	This paper analyzes the effect on the optimal value of a given linear semi-infinite programming problem of the kind of perturbations which more frequently arise in practical applications: those which affect the objective function and the right-hand-side coefficients of the…
Fecha:	2009-02-09
Recurso:	RUA Docencia

Recurso libre

18.

Imaging in white light with a thick-phase transmission holographic doublet
Beléndez Vázquez, Augusto - Pascual Villalobos, Inmaculada - Fimia Gil, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	An afocal two-element holographic imaging system is presented. This system can be used to work in white light. The holographic optical elements (holographic lenses) are made as thick phase holograms on silver halide sensitized gelatin (SHSG) and they present a…
Fecha:	2009-01-30
Recurso:	RUA Docencia

Recurso libre

19.

Disassembly planning strategies for automatic material removal
Puente Méndez, Santiago Timoteo - Torres Medina, Fernando - Reinoso García, Óscar - Payá Castelló, Luis

Formato:	info:eu-repo/semantics/article
Enlaces:	Nowadays, the material disassembly is an important issue for the industry. This paper presents an algorithm to sequence the task to be performed in the disassembly of a specific material from a product or to separate all the materials of…
Fecha:	2010-09-16
Recurso:	RUA Docencia

Recurso libre

20.

Potential modulated reflectance study of the electrooxidation of simple amino acids on Pt(111) in acidic media
Huerta Arráez, Francisco - Morallón Núñez, Emilia - Quijada Tomás, César - Vázquez Picó, José Luis - Berlouis, L.E.A.

Formato:	info:eu-repo/semantics/article
Enlaces:	The electroreflectance (ER) technique has been applied to the study of the electrooxidation of some simple amino acids (glycine, serine and alanine) on a Pt(111) surface in acid medium. A different behaviour in the (1:R)(#R:#E) response as a function of
Fecha:	2007-11-02
Recurso:	RUA Docencia

Recurso libre

21.

Propagation and phase reconstruction of ocular wavefronts with SAR techniques
Rouarch, Jessica - Espinosa Tomás, Julián - Miret Marí, Juan José - Mas Candela, David - Pérez Rodríguez, Jorge - Illueca Contri, Carlos

Formato:	info:eu-repo/semantics/preprint
Enlaces:	In this communication, we report a new method to determine the wavefront aberration function of personalized eyes. We obtain corneal surface data and axial lengths for different eyes. With these data, we construct a diffractive model of a human eye,…
Fecha:	2008-03-06
Recurso:	RUA Docencia

Recurso libre

22.

Synthesis of prolines by enantioselective 1,3-dipolar cycloaddition of azomethine ylides and alkenes catalyzed by chiral phosphoramidite-silver(I) complexes
Nájera Domingo, Carmen - Retamosa Hernández, María de Gracia - Martín Rodríguez, María - Sansano Gil, José Miguel - Cózar Ruano, Abel de - Cossío Mora, Fernando Pedro

Formato:	info:eu-repo/semantics/article
Enlaces:	The endo-diastereo- and enantioselective 1,3-dipolar cycloaddition of azomethine ylides and electrophilic alkenes is efficiently catalysed by chiral phosphoramidite-silver(I) perchlorate complexes. The reaction allows the presence of different types of substituents in the 1,3-dipole and can be applied to the synthesis…
Fecha:	2009-11-12
Recurso:	RUA Docencia

Recurso libre

23.

Higher accurate approximate solutions for the simple pendulum in terms of elementary functions
Beléndez Vázquez, Augusto - Francés Monllor, Jorge - Ortuño Sánchez, Manuel - Gallego Rico, Sergi - Bernabeu Pastor, José Guillermo

Formato:	info:eu-repo/semantics/article
Enlaces:	A closed-form approximate expression for the solution of a simple pendulum in terms of elementary functions is obtained. To do this, the exact expression for the maximum tension of the string of the pendulum is first considered and a trial…
Fecha:	2010-05-03
Recurso:	RUA Docencia

Recurso libre

24.

Hybrid ternary modulation applied to multiplexing holograms in photopolymers for data page storage
Fernández Varó, Elena - Márquez Ruiz, Andrés - Gallego Rico, Sergi - Fuentes Rosillo, Rosa - García Llopis, Celia - Pascual Villalobos, Inmaculada

Formato:	info:eu-repo/semantics/article
Enlaces:	Holographic data storage is a new optical technology, which allows an important number of bits to be stored in a recording material. In this paper, holographic data pages were stored in a polyvinyl alcohol/acrylamide (AA) photopolymer layer, using a peristrophic…
Fecha:	2011-07-18
Recurso:	RUA Docencia

Recurso libre

25.

Benjamin, BitTorrent, Bootlegs: auratic piracy cultures?
Rodríguez Ferrándiz, Raúl

Formato:	info:eu-repo/semantics/article
Enlaces:	Seventy-five years ago, Walter Benjamin showed us that the line between "production" and "reproduction" had begun to blur. Reproduction was no longer optional, consequential and degrading (the shredding of the original’s aura), but was instead being transformed into a principle…
Fecha:	2012-04-23
Recurso:	RUA Docencia

Recurso libre

26.

Invisible work, unseen hazards: the health of women immigrant household service workers in Spain
Ahonen, Emily Q. - López Jacob, María José - Vázquez, María Luisa - Porthé, Victoria - Gil González, Diana - García García, Ana María - Ruiz Frutos, Carlos - Benach de Rovira, Joan - García Benavides, Fernando

Formato:	info:eu-repo/semantics/article
Enlaces:	BACKGROUND: Household service work has been largely absent from occupational health studies. We examine the occupational hazards and health effects identified by immigrant women household service workers. METHODS: Exploratory, descriptive study of 46 documented and undocumented immigrant women in household…
Fecha:	2011-07-19
Recurso:	RUA Docencia

Recurso libre

27.

Designing secure data warehouses by using MDA and QVT
Soler, Emilio - Trujillo Mondéjar, Juan Carlos - Blanco Bueno, Carlos - Fernández Medina, Eduardo

Formato:	info:eu-repo/semantics/article
Enlaces:	The Data Warehouse (DW) design is based on multidimensional (MD) modeling which structures information into facts and dimensions. Due to the confidentiality of the data that it stores, it is crucial to specify security and audit measures from the early…
Fecha:	2012-03-08
Recurso:	RUA Docencia

Recurso libre

28.

Differences in exposure to occupational health risks in Spanish and foreign-born workers in Spain (Itsal Project)
Ronda Pérez, Elena - Agudelo Suárez, Andrés A. - García García, Ana María - López Jacob, María José - Ruiz Frutos, Carlos - García Benavides, Fernando

Formato:	info:eu-repo/semantics/article
Enlaces:	Migrant workers usually show higher rates of work-related health problems than natives. However, little information is available about their exposure to occupational risks. We describe self-reported working exposure in Spanish and foreign-born workers. A cross-sectional survey was conducted as part…
Fecha:	2012-12-11
Recurso:	RUA Docencia

Recurso libre

29.

Cooperative tasks between humans and robots in industrial environments
Corrales Ramón, Juan Antonio - García Gómez, Gabriel Jesús - Torres Medina, Fernando - Perdereau, Véronique

Formato:	info:eu-repo/semantics/article
Enlaces:	Collaborative tasks between human operators and robotic manipulators can improve the performance and flexibility of industrial environments. Nevertheless, the safety of humans should always be guaranteed and the behaviour of the robots should be modified when a risk of collision…
Fecha:	2012-10-03
Recurso:	RUA Docencia

Recurso libre

30.

Analytical approximate solutions for the cubic-quintic Duffing oscillator in terms of elementary functions
Beléndez Vázquez, Augusto - Álvarez López, Mariela Lázara - Francés Monllor, Jorge - Bleda Pérez, Sergio - Beléndez Vázquez, Tarsicio - Nájera López, Alberto - Arribas Garde, Enrique

Formato:	info:eu-repo/semantics/article
Enlaces:	Accurate approximate closed-form solutions for the cubic-quintic Duffing oscillator are obtained in terms of elementary functions. To do this, we use the previous results obtained using a cubication method in which the restoring force is expanded in Chebyshev polynomials and…
Fecha:	2012-10-15
Recurso:	RUA Docencia