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Now showing items 4631-4640 of 4794
Validation of an LC-ESI-MS/MS for the quantitation of phosphodiesterase-5 inhibitors and their main metabolites in rat serum and brain tissue samples.
(Elsevier, 2012-105-1)
This work proposes a liquid chromatography-electrospray ionization ion trap mass spectrometry (LC-ESI-ITMS) method, for the quantification of sildenafil (SDF), tadalafil (TDF) and vardenafil (VDF) and their metabolites ...
Where does risk lie in sexual practices? A study of young people’s social representations
(Taylor & Francis Group, 2020-07-13)
In this study we investigate the social representations of risky sexual practices.
Specifically, we analyse the circumstances in which young Spanish people consider
a sexual practice as risky, and how such ‘representations’ ...
Visual Programming Environments for Object Oriented Programming: Acceptance and Effects on Student Motivation
(IEEE, 2017-08-07)
This paper presents an experiment in which visual programming environments have been used in programming courses aiming at helping students to acquire the competencies of a course on object-oriented programming. This paper ...
AC and DC technology in microgrids: a review
(Elsevier, 2014-12-05)
Microgrids are a suitable, reliable and clean solution to integrate distributed generation into the mains grid. Microgrids can present both AC and DC distribution lines. The type of distribution conditions the performance ...
Geomorfología y restauración fluvial: seguimiento del derribo de presas en Gipuzkoa
(Universidad de La Rioja, 2014-03-06)
[ES]Se presenta la metodología diseñada para el seguimiento geomorfológico del derribo de azudes, así como los resultados obtenidos hasta el momento en dos casos concretos: las presas de Mendaraz (río Urumea) e Inturia ...
G protein-membrane interactions II: Effect of G Protein-linked Lipids on Membrane Structure and G Protein-membrane Interactions
(Elsevier, 2017-07-03)
[EN] G proteins often bear myristoyl, palmitoyl and isoprenyl moieties, which favor their
association with the membrane and their accumulation in G Protein Coupled Receptor-rich
microdomains. These lipids influence the ...
Influence of catchment processes on fluvial morphology and river habitats
(AIL, 2011)
Fluvial morphology is conditioned by three basic elements: flow regime, sediment yield and valley characteristics. These
elements are controlled by factors operating at different spatial and time scales, within and outside ...
Sociometric popularity, perceived peer support, and self-concept in adolescence
(Frontiers, 2020-11-26)
The objective of this study is to analyze the role that peer support plays in the incidence relationships between sociometric popularity and general self-concept based on sociometer theory. A total of 676 randomly selected ...
Shortcuts to adiabaticity: concepts, methods, and applications
(2019-10-24)
Shortcuts to adiabaticity (STA) are fast routes to the final results of slow, adiabatic changes of the controlling parameters of a system. The shortcuts are designed by a set of analytical and numerical methods suitable ...
Estilos de religiosidad y valores de universitarios y universitarias de Esmeraldas, Ecuador
(UNAM, 2020-03-25)
Este trabajo analiza los estilos de religiosidad de Batson y Ventis, y el sistema de valores de Schwartz con variables como sexo, autodefinición étnica y adscripción religiosa, así como las correlaciones entre los valores ...