La realidad de Sofía

Mirian N. Domínguez: Máster en Derecho Marítimo, de la Universidad APEC (Unapec); Máster en Ciencias de la Educación, mención Enseñanza de las Ciencias Jurídicas, de la Universidad de Camagüey, Cuba. Posgrado en Derecho Civil, de la Universidad Autónoma de Santo Domingo (UASD); Postgrado en Derecho del Comercio Internacional, de la Unapec. Licenciatura en Derecho, de la UASD; Licenciatura en Ciencias Políticas Estudios Internacionales, de la UASD. Estudios Superiores en Ciencias Pedagógicas, Mención Enseñanza de las Ciencias Jurídicas, Universidad de Camagüey, Cuba. Especialidad en Derecho Civil, de la UASD. En el ámbito laboral se desempeña como vicepresidente de la Oficina Jurídico-Financiera Bralpa SRL, y como consultora jurídica de algunas cooperativas; también como profesora contratada en el Decanato de Derecho de Unapec. Es autora del libro “Poemario bordados de mi vida”, inédito

Anomalous U(1)_A and Electroweak Symmetry Breaking

We suggest a new mechanism for electroweak symmetry breaking in the supersymmetric Standard Model. Our suggestion is based on the presence of an anomalous U(1)_A gauge symmetry, which naturally arises in the four dimensional superstring theory, and heavily relies on the value of the corresponding Fayet-Illiopoulos \xi-term.Comment: Latex, 11 pages, discussions and references adde

A hybrid ANN-GA model to prediction of bivariate binary responses: Application to joint prediction of occurrence of heart block and death in patients with myocardial infarction

Background: In medical studies, when the joint prediction about occurrence of two events should be anticipated, a statistical bivariate model is used. Due to the limitations of usual statistical models, other methods such as Artificial Neural Network (ANN) and hybrid models could be used. In this paper, we propose a hybrid Artificial Neural Network-Genetic Algorithm (ANN-GA) model to prediction the occurrence of heart block and death in myocardial infarction (MI) patients simultaneously. Methods: For fitting and comparing the models, 263 new patients with definite diagnosis of MI hospitalized in Cardiology Ward of Hajar Hospital, Shahrekord, Iran, from March, 2014 to March, 2016 were enrolled. Occurrence of heart block and death were employed as bivariate binary outcomes. Bivariate Logistic Regression (BLR), ANN and hybrid ANN-GA models were fitted to data. Prediction accuracy was used to compare the models. The codes were written in Matlab 2013a and Zelig package in R3.2.2. Results: The prediction accuracy of BLR, ANN and hybrid ANN-GA models was obtained 77.7%, 83.69% and 93.85% for the training and 78.48%, 84.81% and 96.2% for the test data, respectively. In both training and test data set, hybrid ANN-GA model had better accuracy. Conclusions: ANN model could be a suitable alternative for modeling and predicting bivariate binary responses when the presuppositions of statistical models are not met in actual data. In addition, using optimization methods, such as hybrid ANN-GA model, could improve precision of ANN model. © 2016, Health Hamadan University of Medical Sciences. All rights reserved

High repetition rate and coherent Free-Electron Laser in the tender X-rays based on the Echo-Enabled Harmonic Generation of an Ultra-Violet Oscillator pulse

Fine time-resolved analysis of matter - i.e. spectroscopy and photon scattering - in the linear response regime requires a fs-scale pulsed, high repetition rate, fully coherent X-ray source. A seeded Free-Electron Laser (FEL) driven by a Super-Conducting Linac, generating $10^{8}$-$10^{10}$ coherent photons at 2-5 keV with abou 0.5 MHz of repetition rate, can address this need. The seeding scheme proposed is the Echo-Enabled Harmonic Generation, alimented by a FEL Oscillator working at 13.6 nm with a cavity based on Mo-Si mirrors. The whole chain of the X-ray generation is here described by means of start-to-end simulations. Comparisons with the Self Amplified Spontaneus Emission and a fresh-bunch harmonic cascade performed with similar electron beams show the validity of this scheme

Two new species of Meropidia Hippa & Thompson, 1983 (Diptera, Syrphidae) from the Andes Mountains

Two new species of Meropidia Hippa & Thompson, 1983 (Diptera, Syrphidae) are described, Meropidia nitida Morales, sp. n. and M. flavens Hippa & Ståhls sp. n., from Bolivia and Colombia respectively. A key to all described Meropidia species is provided.Peer reviewe

El rol de parque nacionales en la estructuración del Departamento Los Lagos (Pcia. de Neuquen - Rca. Argentina) : Las normas y las contradicciones plasmadas en el territorio

Afirmamos que el Parque Nacional se está comportando como una institución que protege la naturaleza que es y será "usada" y "comercializada" como imagen. Protege y organiza al proceso productivo turístico que tiene al paisaje natural, el espacio de ocio, como su medio de producción. Por otra parte, ¿cuáles son los intereses que subyacen a estas indefiniciones y superposiciones de jurisdicciones?, ¿han cambiado los intereses a lo largo del tiempo?. Afirmamos que el "conservacionismo" inicial de PN se ha mantenido casi inalterable. Pero hoy nos preguntamos, ¿conservar para quién?.Evento también conocido bajo el nombre de "II Jornadas Platenses de Geografía"Facultad de Humanidades y Ciencias de la Educació

El rol de parque nacionales en la estructuración del Departamento Los Lagos (Pcia. de Neuquen - Rca. Argentina) : Las normas y las contradicciones plasmadas en el territorio

Afirmamos que el Parque Nacional se está comportando como una institución que protege la naturaleza que es y será "usada" y "comercializada" como imagen. Protege y organiza al proceso productivo turístico que tiene al paisaje natural, el espacio de ocio, como su medio de producción. Por otra parte, ¿cuáles son los intereses que subyacen a estas indefiniciones y superposiciones de jurisdicciones?, ¿han cambiado los intereses a lo largo del tiempo?. Afirmamos que el "conservacionismo" inicial de PN se ha mantenido casi inalterable. Pero hoy nos preguntamos, ¿conservar para quién?.Evento también conocido bajo el nombre de "II Jornadas Platenses de Geografía"Facultad de Humanidades y Ciencias de la Educació

Toxicity and sublethal effects of phthalides analogs to Rhyzopertha dominica

Phthalides and their precursors have demonstrated a large variety of biological activities. Eighteen phthalides were synthesized and tested on the stored grain pest Rhyzopertha dominica. In the screening bioassay, compounds rac‐(2R,2aS,4R,4aS,6aR,6bS,7R)‐7‐bromohexahydro‐2,4‐methano‐1,6‐dioxacyclopenta[cd]pentalen‐5(2H)‐one (15) and rac‐(3R,3aR,4R,7S,7aS)‐3‐(propan‐2‐yloxy)hexahydro‐4,7‐methano‐2‐benzofuran‐1(3H)‐one (17) showed mortality similar to the commercial insecticide, Bifenthrin® (≥90 %). The time (LT50) and dose (LD50) necessary to kill 50 % of the R. dominica population were determined for the most efficacious phthalides 15 and 17. Compound 15 presented the lowest LD50 (1.97 μg g−1), being four times more toxic than Bifenthrin® (LD50=9.11 μg g−1). Both compounds presented an LT50 value equal to 24 h. When applied at a sublethal dose, both phthalides (especially compound 15), reduced the emergence of the first progeny of R. dominica. These findings highlight the potential of phthalides 15 and 17 as precursors for the development of insecticides for R. dominica control

Higher-Spin Gauge Fields Interacting with Scalars: The Lagrangian Cubic Vertex

We apply a recently presented BRST procedure to construct the Largangian cubic vertex of higher-spin gauge field triplets interacting with massive free scalars. In flat space, the spin-s triplet propagates the series of irreducible spin-s, s-2,..,0/1 modes which couple independently to corresponding conserved currents constructed from the scalars. The simple covariantization of the flat space result is not enough in AdS, as new interaction vertices appear. We present in detail the cases of spin-2 and spin-3 triplets coupled to scalars. Restricting to a single irreducible spin-s mode we uncover previously obtained results. We also present an alternative derivation of the lower spin results based on the idea that higher-spin gauge fields arise from the gauging of higher derivative symmetries of free matter Lagrangians. Our results can be readily applied to holographic studies of higher-spin gauge theories.Comment: 26 pages, v2: references adde