Heavy Hadrons in Dense Matter

We study the behavior of dynamically-generated baryon resonances with heavy-quark content within a unitarized coupled-channel theory in matter that fulfills heavy-quark spin symmetry constraints. We analyze the implications for the formation of charmed mesic nuclei and the propagation of heavy mesons in heavy-ion collisions from RHIC to FAIR.Comment: 4 pages, 1 table, 2 figures, contribution to the proceedings of Strangeness in Quark Matter (SQM2015), Dubna, 6-11 July 201

Tunable correlated-electron phases in (111) LaAlO_(3)/SrTiO_(3) band insulator heterostructures

Density functional theory calculations reveal the existence of different correlated-electron ground states in (111)-oriented n-type LaAlO_(3)/SrTiO_(3) symmetric superlattices. They can be tuned by selecting the SrTiO3 thickness, and range from a trivial metal for thick SrTiO_(3) slabs to a Mott-type antiferromagnet in the ultrathin limit. An itinerant ferromagnet and a half-metal phase are also stable in the intermediate region. This remarkable property is a distinct characteristic of (111) perovskite heterostructures and originates from the combined effect of polar discontinuity at the interface, trigonal lattice symmetry, and quantum confinement. While the polar discontinuity promotes the filling of the empty d states of the SrTiO_(3) with one electron, the trigonal symmetry dictates that the wave function of the occupied bands spreads over the entire SrTiO3 slab. Thus, the electron density can be chosen by selecting the number of SrTiO_(3) layers. For high densities, symmetry breaking and on-site Coulomb interaction drive the occurrence of correlated-electron ground states. Our results show that low dimensionality can lead to unconventional behavior of oxide heterostructures formed by electronically fairly simple nonmagnetic band insulators, and can open perspectives for the use of LaAlO_(3)/SrTiO_(3) superlattices grown along the [111] direction to explore quantum phase transitions

Crisis económica y financiera. La respuesta de la UE: una evaluación de las políticas aplicadas y un análisis de las ineficiencias creadas.

VIII Premio de investigación Francisco Javier de Landaburu. Universitas 200

Una propuesta de formación e información on-line: la feria virtual "Expofood"

Se presenta la plataforma de formación on-line para profesionales www.Expofood.com desarrollada por el Aula de Productos Lácteos de la Universidad de Santiago como una respuesta ante la necesidad de llevar la formación continua a las empresas. Esta platafIt was produced like an answer of the necessity to aproximate the continuous formation to the companies. This platform was developed with the purpose to Incorporate and to adapt to the industry personnel to the new technologies of information and communi

Applying Recommendations to Align Competences, Methodology, and Assessment in Telematics, Computing, and Electronic Engineering Courses

The alignment between competences, teachinglearning methodologies, and assessment is a key element of European higher education. This paper presents the efforts carried out by six telematics, computer science and electronic engineering education teachers toward achieving this alignment in their subjects. In a joint work with pedagogues, a set of recommended actions are identified. A selection of these actions are applied and evaluated in the six subjects. The cross analysis of the results indicates that the actions allow students to better understand the methodologies and assessments planned for the subjects, facilitate (self-) regulation, and increase students’ involvement in the subjects

Enumeration and isolation of viral particles from oligotrophic marine environments by tangential flow filtration

A method for concentrating, enumerating and isolating viral particles from marine water samples was developed and evaluated. The method consists of a concentration step by a tangential flow filtration (TFF) system, ultrafiltration by centrifugal concentrator, and visualization by transmission electron microscopy (TEM). This procedure allows to reduce volumes of ca. 2 l of seawater to 10–20 μl, which can be dispensed on electron microscopy grids to count total viral particles. This method allows the recovery of small numbers of viral particles from oligotrophic seawater samples, in which viral numbers ranged from 105 to 106 viral particles/ml. The tangential flow filtration system was evaluated as quantitative technique using suspensions of two different bacteriophages (T6 and ΦX174) in autoclaved seawater. Recovery rates varied depending on both the viral morphology and flow rate; recovery percentages reached 117.4% for T6 and 60.6% for ΦX174 using low flow rate

Antiferromagnetic behavior in S=2 layered RbMnF4

Under the terms of the Creative Commons Attribution (CC BY) license to their work.The magnetic properties of layered-perovskite RbMnF4 have been investigated by neutron powder diffraction. This compound exhibits a magnetic ordering below Tc=3.7±0.2 K. The resolution of the magnetic structure at 1.5 K indicates that RbMnF4 orders as a collinear antiferromagnet. The propagation vector is k=0 and the magnetic moment of each sublattice has a value of 2.97(3) μB. The strong reduction of the observed magnetic moment should be attributed to a particularly high two-dimensional character of this compound.The research in Zaragoza has been supported by Grant No. MAT/91-681, from the Comision Interministerial deCiencia y Tecnologia.Peer Reviewe

Binap-silver-catalyzed enantioselective multicomponent 1,3-dipolar cycloaddition of azomethines ylides derived from ethyl glyoxylate

The enantioselective binap–silver catalyzed multicomponent 1,3-dipolar cycloaddition using ethyl glyoxylate, phenylalanine ethyl ester, and maleimides is described. The employment of basic silver carbonate allows the reaction to take place in the absence of an extra base giving high yields and ee. In addition, low-level calculations regarding the importance of the benzyl substituent at the α-position of the amino ester justify the expected absolute configuration of the final cycloadducts and the observed high enantiodiscrimination.Financial support was provided by the Spanish Ministerio de Ciencia e Innovación (MICINN) (projects CTQ2010-20387, and Consolider Ingenio 2010, CSD2007-00006), the Spanish Ministerio de Economía y Competitividad (MINECO) (projects CTQ2013-43446-P, and CTQ2014-51912-REDC), FEDER, the Generalitat Valenciana (PROMETEO 2009/039 and PROMETEOII/2014/017), and the University of Alicante