Non-decoupling effects of SUSY in the physics of Higgs bosons and their phenomenological implications

We consider a plausible scenario in the Minimal Supersymmetric Standard Model (MSSM) where all the genuine supersymmetric (SUSY) particles are heavier than the electroweak scale. In this situation, indirect searches via their radiative corrections to low energy observables are complementary to direct searches, and they can be crucial if the SUSY masses are at the TeV energy range. We summarize the most relevant heavy SUSY radiative effects in Higgs boson physics and emphasize those that manifest a non-decoupling behaviour. We focus, in particular, on the SUSY-QCD non-decoupling effects in fermionic Higgs decays, flavour changing Higgs decays and Yukawa couplings. Some of their phenomenological implications at future colliders are also studied.Comment: Invited talk given by M. J. Herrero at the X Mexican School of Particles and Fields, Playa del Carmen, Mexico, November 200

-TIME PREFERENCE AND INDIVIDUAL HEALTH PROFILES

A generalization of the QALY model for general health profiles is provided in this paper. Twonatural assumptions on inter-temporal preferences play a key role in arriving at our representation.The first one, Indifference to the future afterdeath, is uncontestable in our framework, and thesecond one, Preference Independence of future with regard to the past, is weaker than the usualAdditive Independence or Mutual Utility Independence conditions traditionally employed. Thesemi-separable structure obtained for the utility function on health profiles is very similar to thediscounted QALY, but unlike it, endogenous discount rates, depending on past states of health,now emerge.Health problems, Time preferences, Preference Independence

Fundamental aspects of HCOOH oxidation at platinum single crystal surfaces with basal orientations and modified by irreversibly adsorbed adatoms

Oxidation of formic acid at Pt(hkl) electrodes with basal orientations and modified by irreversibly adsorbed adatoms is revisited. It was shown that the adatoms of the nitrogen group enhance the electrocatalytic activity through long-range electronic effects in the case of Pt(111) substrates or through shorter third-body effects when adsorbed at Pt(100) electrodes. In both cases, it appears that free platinum sites were required. Special attention is given here to the reactivity at Pt(110) substrates. It is found that maximum electrocatalysis is observed at fully blocked surfaces. This result points out again structure sensitivity effects for this characteristic reaction. Unlike the more compact planes, in which the enhancement of the oxidation rate was explained through essentially rigid models for the adlayer, it is suggested that the resulting enhancement observed at Pt(110) substrates could be explained if some adatom mobility is considered

S-locus diversity of sweet cherry varieties from Galicia, North Western Spain (abstract)

Publishe

Synthesis and characterization of new membranes based on sulfonated polysulfone/Zn,Al-heptamolibdate LDH

New proton conducting organic/inorganic nano-hybrid polymer electrolyte membranes were synthesized by solving casting method. Inorganic nanopowders were a layered double hydroxides (LDH) with Zn,Al cations in which heptamolybdate were inserted. These nanopowders were prepared by anion exchange method from hydrotalcite (LDH) with interlayer anions (NO₃). The sulfonated polymers were prepared by an electrophilic aromatic substitution reaction between the polymer and trimethylsylil cholorosulfonate (TMSCS). The composites membranes were characterized by FTIR and TGA and water uptake was determined. Electrochemical impedance spectroscopy (EIS) was used to study the proton conductivity of the membranes. EIS measurements were performed facing the membrane to different HCl concentrations (103 ≤ c ≤101 M). It was concluded that these new composite membranes present good thermal properties and proton conductivity slightly higher than SPSU.This work has been supported by the Projects from the regional government (Comunidad de Madrid through MATERYENER3CM S2013/MIT2753) and Spanish Government, MINECO (MAT2013 46452C43R)

Situación de las poblaciones valencianas del género Marsilea: medidas para su conservación

[email protected] [email protected] [email protected] analiza la situación de las poblaciones valencianas de Marsilea batardae, M. quadrifolia y M. strigosa, así como las amenazas que actualmente pesan sobre ellas. Asimismo se comentan las medidas que se han puesto en marcha para asegurar su conservación, entre las que destacan las introducciones experimentales.The situation of Valencian populations of Marsilea batardae, M. quadrifolia and M. strigosa, as well as the threats that they suffer at present are analysed here. Likewise the measures applied to ensure their conservation, with emphasis on the experimental introductions, are commented

Role of two NtcA-binding sites in the complex ntcA gene promoter of the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120

Anabaena sp. strain PCC 7120 is a filamentous cyanobacterium that fixes N2 in specialized cells called heterocysts, which differentiate from vegetative cells in a process that requires the nitrogen control transcription factor NtcA. 2-Oxoglutarate-stimulated binding of purified NtcA to wild-type and modified versions of the ntcA gene promoter from Anabaena sp. was analyzed by mobility shift and DNase I footprinting assays, and the role of NtcA-binding sites in the expression of the ntcA gene during heterocyst differentiation was studied in vivo by using an ntcA-gfp translational fusion and primer extension analysis. Mutation of neither of the two identified NtcA-binding sites eliminated localized expression of ntcA in proheterocysts, but mutation of both sites led to very low, nonlocalized expression. Copyright © 2008, American Society for Microbiology. All Rights Reserved.Peer Reviewe

Synthesis and characterization of polysulfone/layered double hydroxides nanocomposite membranes for fuel cell application

In the present study, sulfonated polysulfone (SPSU)/layered double hydroxide (LDH) composite membranes for use in proton exchange membrane fuel cells (PEMFCs) were investigated. Polysulfone (PSU) was sulfonated with trimethylsilyl chlorosulfonate in 1,2 dichloroethane at room temperature. Composite membranes were prepared by blending different amount (0, 1, 2, and 5%) of LDH nanoparticles with SPSU in dimethylacetamide (DMAc). The membranes were prepared by the casting method and the samples obtained were characterized by XRD, FTIR spectroscopy. The thermal behavior for all samples was evaluated by thermogravimetrical analysis (TGA). Finally electrochemical impedance spectroscopy (EIS) was used to study the membranes electrical properties. The EIS measurements were carried out with the membranes in contact with HCl solutions at different concentrations (103 ≤ c ≤101). Results show a clear dependence of the membrane electrical resistance with the sulfonation degree and the amount of the LDH addedAuthors thanks financial support received from the regional government (Comunidad de Madrid through MATERYENER S2009 PPQ-1626), and Spanish Government,MICINN (MAT2010-19837-CO6)