Orientifolds of Warped Throats from Toric Calabi-Yau Singularities

We study the complex deformations of orientifolds of D3-branes at toric CY singularities, using their description in terms of dimer diagrams. We describe orientifold quotients that have fixed lines or fixed points in the dimer, and characterize the possibilities to deform them in terms of the behaviour of zig-zag paths under the orientifold symmetry. The resulting models are holographic duals to warped throats with orientifold planes. Our systematic construction provides a general class of configurations which includes models recently appeared in the context of de Sitter uplift by nilpotent goldstino or dynamical supersymmetry breaking.Comment: 39 pages, 23 figures. v2: minor corrections don

De Sitter Uplift with Dynamical Susy Breaking

We propose the use of D-brane realizations of Dynamical Supersymmetry Breaking (DSB) gauge sectors as sources of uplift in compactifications with moduli stabilization onto de Sitter vacua. This construction is fairly different from the introduction of anti D-branes, yet allows for tunably small contributions to the vacuum energy via their embedding into warped throats. The idea is explicitly exemplified by the embedding of the 1-family $SU(5)$ DSB model in a local warped throat with fluxes, which we discuss in detail in terms of orientifolds of dimer diagrams.Comment: 26 pages, 16 figures. v3: version accepted in JHEP with minor corrections in the introduction and extra reference

On uplifts by warped anti-D3-branes

In this note we outline the arguments against the ten-dimensional consistency of the simplest types of KKLT de Sitter vacua, as given in arXiv:1707.08678. We comment on parametrization proposals within four-dimensional supergravity and express our disagreement with the recent criticism by the authors of arXiv:1808.09428.Comment: Latex, revtex, 4 pages, 1 figure, v2: references added, minor clarification

Poesía corporal/danza verbal : una lectura comparada de hnuy illa

El espectáculo Hnuy illa (2008), coproducción de Kukai-Tanttaka, se articuló en la intersección entre danza y poesía. Este espectáculo de danza está basado en el imaginario poético del escritor vasco Joseba Sarrionandia. Consideramos que esta transferencia cultural del texto poético al texto coreográfico, nos ofrece un marco interpretativo muy apropiado para poder reflexionar sobre las representaciones del cuerpo y de la voz. ¿Cómo se presenta y representa el cuerpo en el texto poético? ¿Cómo se presenta y representa la voz en el texto coreográfico? ¿Cómo se transfiere esa presencia y representación corporal a la danza?The show Hnuy illa, coproduced by the Kukai Dance Company and the Tanttaka Theater Company in 2008, is articulated in the intersection between dance and poetry. This dance show is based on the poetic imaginary of Basque writer Joseba Sarrionandia. We believe that this cultural transference, from the poetic to the choreographic text, offers a fitting interpretative framework to reflect on representations of the body and voice: it allows us to analyze instances of body and voice in the poetic text and how these are represented. Moreover, it helps to consider how these corporal presences and representations are transferred into dance

Ontological Stakeholder View: An Innovative Proposition

This article describes a theoretical way of understanding business enterprise, for what it is used the stakeholder theory as a theory of the firm. Thus, the purpose of this article is to show an innovative perspective called ontological perspective of stakeholders that relies on a phenomenological model where the subjective perspective of agents is the key, from a purely monetarist model to an economic, social and emotional value creation model, and from a deductive model of stakeholder interests to an inductive model. The main contributions are: add a new perspective to the different classifications made of stakeholder theory, avoid monetarist reductionism under the concept of value in a way that the manager takes into account all interconnected interests of stakeholders, and finally prioritize interests map instead of roles map without accepting the assumption that the role involves joint and no conflicting interests

Ethical banks: an Alternative in the Financial Crisis

This paper studies the differences between traditional financial intermediaries (commercial banks, saving banks and credit cooperatives) and ethical banks that focus on positive social and ethical values. The credit crisis calls into question the functionality and good performance of traditional banks. The full incorporation of ethical values and principles by traditional financial intermediaries might be a form to solve their misleading financial situation. We have analyzed four factors that theoretically mean ethical differences: information transparency, placement of assets, guarantees and participation. These four factors are grouped in an index called Radical Affinity Index (RAI). The paper is focused on the study of RAI using a sample of 119 European banks. The evidence shows, that transparency of information and placement of assets are factors that differentiate ethical banks and the rest of financial intermediaries. The guarantees and participation, which seemed to be useful factors to differentiate ethical aspects of banks, do not support clear evidence to the analysis. In sum, RAI is a functional and useful index to show the ethical policy of financial intermediaries

Bifid Throats for Axion Monodromy Inflation

We construct a simple explicit local geometry providing a `bifid throat' for 5-brane axion monodromy. A bifid throat is a throat that splits into two daughter throats in the IR, containing a homologous 2-cycle family reaching down into each daughter throat. Our example consists of a deformed $\mathbb{Z}_3\times\mathbb{Z}_2$ orbifold of the conifold, which provides us with an explicit holographic dual of the bifid throat including D3-branes and fractional 5-branes at the toric singularities of our setup. Having the holographic description in terms of the dual gauge theory allows us to address the effect of 5-brane-antibrane pair backreaction including the warping effects. This leads to the size of the backreaction being small and controllable after imposing proper normalization of the inflaton potential and hence the warping scales.Comment: 35 pages, 22 figures. JHEP accepted version with typos corrected and references adde

Causality problem in Economic Science

The main point of the paper is the problem of the economy to be consider like a science in the most strict term of the concept. In the first step we are going to tackle a presentation about what we understand by science to subsequently present some of the fallacies which have bring certain scepticism about the scientific character of the investigation in economy, to know: 1) The differences between hard and weak sciences -physics and social; 2) The differences between paradigm, positivist and phenomenological y 3) The differences between physic causality and historic causality. In the second step we are going to talk about two fundamental problems which are questioned: 1) the confusion between ontology and gnoseology and 2) the erroneous concept of causality that commonly is used. In the last step of the paper we are going over the recent models of «causal explanation» and we suggest the probabilistic casualty development next with a more elaborated models of causal explanation, like a way to conjugate the scientific severity with the possibility to tackle complex economic realities.Economic science, methodology, hypothetical-deductive method, causality, ontological paradigms

La Presència grega al litoral oriental de la península Ibèrica: els establiments colonials i els ritmes del comerç amb les societats ibèriques

La presència grega al litoral mediterrani de la península Ibèrica és un fenomen que podem resseguir des d'època arcaica fins al començament de l'època romana. Tot i que els primers contactes comercials grecs amb l'occident podrien datar ja del segle viii aC, no és fins al segle vi aC, amb les fundacions de Massàlia i d'Empòrion, quan les navegacions focees comencen a intensificar-se al nord-est i al llevant peninsular. Al llarg del segle v aC, els contactes comercials grecs amb el món ibèric i el paper d'Empòrion es van consolidant, fins a arribar a tenir un moment àlgid durant el segle iv, quan els productes grecs s'estenen massivament pel litoral en coincidència amb un auge del comerç púnic i una major implantació grega en el territori amb les fundacions massaliotes d'Alonis i Hemeroskopeion (conegudes només per les fonts) i de Rhode, que durant el segle iii exportarà les seves pròpies produccions ceràmiques