Normas relativas a la elaboración, composición, etiquetado, presentación y publicidad de los zumos de frutas y otros productos similares destinados a la alimentación humana

El 12 de octubre, el BOE publicó el Real Decreto 781/2013, de 11 de octubre, por el que se establecen normas relativas a la elaboración, composición, etiquetado, presentación y publicidad de los zumos de frutas y otros productos similares destinados a la alimentación humana. [«BOE» núm. 245, de 12 de octubre de 2013, páginas 83295 a 83303

Logotipo común para identificar a las personas que ofrecen al público medicamentos por venta a distancia

Reglamento de Ejecución (UE) nº 699/2014 de la Comisión, de 24 de junio de 2014, sobre el diseño del logotipo común para identificar a las personas que ofrecen al público medicamentos por venta a distancia y los criterios técnicos, electrónicos y criptográficos a efectos de la verificación de la autenticidad de dicho logotipo

Las prácticas comerciales desleales en la Ley 3/2014, por la que se modifica el Texto Refundido de la Ley General para la Defensa de los Consumidores y Usuarios

El presente trabajo analiza las reformas introducidas por la Ley 3/2014 en la regulación de las prácticas comerciales desleales

Real Decreto 682/2014, de 1 de agosto, por el que se modifica el Real Decreto 191/2011, de 18 de febrero, sobre registro general sanitario de empresas alimentarias y alimentos

Real Decreto 682/2014, de 1 de agosto, por el que se modifica el Real Decreto 191/2011, de 18 de febrero, sobre registro general sanitario de empresas alimentarias y alimentos, y otros cuatro reglamentos sobre esta materia. «BOE» núm. 208, de 27 de agosto de 2014, páginas 68459 a 68465

Los nuevos reglamentos de la Unión Europea sobre productos sanitarios

Comentario a la Resolución de 16 de marzo de 2017 de la Sección Tercera del Jurado de AUTOCONTROL sobre la prohibición de incluir en la publicidad de los productos alimenticios “la referencia a su uso en centros sanitarios o a su distribución a través de oficinas de farmacia”.

El titular de una red wifi no responde por las infracciones de propiedad intelectual que realicen los usuarios de dicha red

Sentencia del Tribunal de Justicia (Sala Tercera) de 15 de septiembre de 2016

Anderson localization in carbon nanotubes: defect density and temperature effects

The role of irradiation induced defects and temperature in the conducting properties of single-walled (10,10) carbon nanotubes has been analyzed by means of a first-principles approach. We find that di-vacancies modify strongly the energy dependence of the differential conductance, reducing also the number of contributing channels from two (ideal) to one. A small number of di-vacancies (5-9) brings up strong Anderson localization effects and a seemly universal curve for the resistance as a function of the number of defects. It is also shown that low temperatures, around 15-65 K, are enough to smooth out the fluctuations of the conductance without destroying the exponential dependence of the resistivity as a function of the tube length.Comment: 4 pages, 4 figure

Anderson localization in carbon nanotubes: Defect density and temperature effects

The role of irradiation induced defects and temperature in the conducting properties of single-walled (10,10) carbon nanotubes has been analyzed by means of a first-principles approach. We find that divacancies modify strongly the energy dependence of the differential conductance, reducing also the number of contributing channels from two (ideal) to one. A small number of divacancies (5-9) brings up strong Anderson localization effects and a seemly universal curve for the resistance as a function of the number of defects. It is also shown that low temperatures, about 15-65 K, are enough to smooth out the fluctuations of the conductance without destroying the exponential dependence of the resistivity as a function of the tube length. © 2005 The American Physical Society.The authors were partially supported by the Spanish MCyT under Contract No. MAT2002-01534 and the EC 6th Framework Network of Excellence NANOQUANTA (NMP4-CT-2004-500198). B. B. is indebted to MEC (Spain) for financial support.Peer Reviewe

Ab initio nanoplasmonics: The impact of atomic structure

Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).We present an ab initio study of the hybridization of localized surface plasmons in a metal nanoparticle dimer. The atomic structure, which is often neglected in theoretical studies of quantum nanoplasmonics, has a strong impact on the optical absorption properties when subnanometric gaps between the nanoparticles are considered. We demonstrate that this influences the hybridization of optical resonances of the dimer, and leads to significantly smaller electric field enhancements as compared to the standard jellium model. In addition, we show that the corrugation of the metal surface at a microscopic scale becomes as important as other well-known quantum corrections to the plasmonic response, implying that the atomic structure has to be taken into account to obtain quantitative predictions for realistic nanoplasmonic devices.This work has been funded by the European Research Council (ERC-2011-AdG Proposal No. 290981). We also acknowledge financial support from the European Research Council (ERC-2010-AdG Proposal No. 267374), Spanish Grants (No. MAT2011-28581-C02-01 and No. FIS2010-21282-C02), Grupos Consolidados UPV/EHU (IT-578-13), COST actions CM1204, MP1306, and EC project CRONOS (Grant No. 280879-2).Peer Reviewe

Effect of the A cation size disorder and synthesis conditions on the properties of an iron perovskite series

Póster presentado en The Energy and Materials Research Conference - EMR2015 celebrado en Madrid (España) entre el 25-27 de febrero de 2015Solid state chemistry thrives on a rich variety of solids that can be synthesized using a wide range of techniques. It is well known that the preparative route plays a critical role on the physical and chemical properties of the reaction products, controlling the structure, morphology, grain size and surface area of the obtained materials. This is particularly important in the area of ABO3 perovskite compounds given that they have for long been at the heart of important applications [1]. Particularly, perovskite systems such as La1-xSrxFeO3 (LSF) are now receiving researchers attention for their interesting applications [2-4] such as ceramic membranes (CMs) for oxygen separation, solid oxide fuel cells (SOFCs) electrodes for efficient power generation, catalysts for complete oxidation of CO in vehicle engines, etc. In order to develop these advanced materials, combustion methods (glycine-nitrate, urea based, and other modifications) have been proposed as one of the most promising methods for their synthesis [5,6]. This method consists of a highly exothermic self-combustion reaction between the fuel (usually glycine, urea or alanine) and the oxidant (metal nitrates), that produces enough heat to obtain the ceramic powders. The characteristics (including purity, structure and size) of the combustion synthesis oxide powders are typically determined by several synthetic parameters, such as the species of fuel and oxidizer reactants, the fuel/oxidizer ratio, and the subsequent sintering treatment after combustion process [7]. In the other hand, physical properties of these perovskite materials are very sensitive to changes in the doping level (x), the average size of the A cations (), and the effects of A cation size disorder (σ2(rA)) quantified as σ2(rA) = – 2 [8]. Our searching approach to find the optimum synthetic conditions for new materials within the LSF system has been based on the study of only one of the indicated parameters isolated from the rest. In this sense, this study is focused on the effect of the variation of the cation size disorder, calcination temperature and the fuel/oxidizer ratio of glycine/nitrate on the structural, morphological, electrical and catalytic properties of a series of Ln0.5M0.5FeO3-δ perovskites (Ln = La, Sm; M = Ba, Sr)