Wilson Loops in the Higgs Phase of Large N Field Theories on the Conifold

We study the quark-antiquark interaction in the large N limit of the superconformal field theory on D-3branes at a Calabi-Yau conical singularity. We compute the Wilson loop in the AdS_5xT^{11} supergravity background for the SU(2N)x SU(2N) theory. We also calculate the Wilson loop for the Higgs phase where the gauge group is broken to SU(N)x SU(N)x SU_D(N). This corresponds to a two center configuration with some of the branes at the singularity and the rest of them at a smooth point. The calculation exhibits the expected Coulomb dependence for the interaction. The angular distribution of the BPS states is different than the one for a spherical horizon.Comment: Latex2e file. 19 pages. Final versio

Education for Sustainable Development: An Exploratory Survey of a Sample of Latin American Higher Education Institutions

Education for sustainable development (ESD) is defined as the knowledge and skills ‘needed to work and live in a way that safeguards environmental, social and economic wellbeing, both in the present and for future generations’. Skills for sustainable development include critical thinking, creative thinking, systems thinking and leadership. Over the last decades, there has been efforts across the world to embed ESD into the curriculum. In European Union (EU) countries, some higher education have made efforts to align education strategies with international and national ESD frameworks. A cursory review of the literature seems to indicate that dissemination and implementation of the international ESD frameworks in Latin America has been slow and sporadic. Although there are some signs to implement ESD into curricula of countries such as Brazil and Colombia, these practices have not been substantial or have not permeated higher education sustainable development strategies. This paper aims to explore the developments of ESD in Latin America. As a first step to explore these developments, it intends to survey and map the current ESD processes in eight higher education institutions of four Latin American Countries: Chile, Colombia, Mexico and Peru. The paper also aims to compare ESD developments with some leading EU higher education institutions in ESD with the view to develop a dialogue between the two regions. These will lead to strategies in which ESD processes can be adopted/adapted with benefits in both directions; it will also create, foster and develop mechanisms that will ensure a sustainable culture of ESD in higher education in both regions. Results of the exploratory survey of a sample of higher education institutions in Latin America are reported

Law of the leading digits and the ideological struggle for numbers

Benford's law states that the occurrence of significant digits in many data sets is not uniform but tends to follow a logarithmic distribution such that the smaller digits appear as first significant digits more frequently than the larger ones. We investigate here numerical data on the country-wise adherent distribution of seven major world religions i.e. Christianity, Islam, Buddhism, Hinduism, Sikhism, Judaism and Baha'ism to see if the proportion of the leading digits occurring in the distribution conforms to Benford's law. We find that the adherent data of all the religions, except Christianity, excellently does conform to Benford's law. Furthermore, unlike the adherent data on Christianity, the significant digit distribution of the three major Christian denominations i.e. Catholicism, Protestantism and Orthodoxy obeys the law. Thus in spite of their complexity general laws can be established for the evolution of the religious groups.Comment: 11 pages, 11 figures, 3 tables, title changed to "The law of the leading digits and the world religions" for journal version in publicatio

Criterios de Implementación ISO 14001 de 2015 Caso de Estudio Sector Floricultor

Mediante el análisis de un estudio de caso basado en la situación ambiental de la empresa Rosas Aguaclara SAS perteneciente al sector floricultor de Colombia, se diagnostica la posibilidad y aproximación de implementar, controlar y ejecutar el Sistema de Gestión Ambiental, basados en la aplicación de requisitos, formulación de preguntas y procesos de auditoría interna de acuerdo a lineamientos establecidos por la Norma ISO 14001:2015.Through the analysis of a case study based on the environmental situation of the company Rosas Aguaclara SAS belonging to the floricultural sector of Colombia, the possibility and approach of implementing, controlling and executing the Environmental Management System is diagnosed, based on the application of requirements , formulation of questions and internal audit processes according to guidelines established by ISO 14001: 2015

SSDSS IV MaNGA - Properties of AGN host galaxies

We present here the characterization of the main properties of a sample of 98 AGN host galaxies, both type-II and type-I, in comparison with those of about 2700 non-active galaxies observed by the MaNGA survey. We found that AGN hosts are morphologically early-type or early-spirals. For a given morphology AGN hosts are, in average, more massive, more compact, more central peaked and rather pressurethan rotational-supported systems. We confirm previous results indicating that AGN hosts are located in the intermediate/transition region between star-forming and non-star-forming galaxies (i.e., the so-called green valley), both in the ColorMagnitude and the star formation main sequence diagrams. Taking into account their relative distribution in terms of the stellar metallicity and oxygen gas abundance and a rough estimation of their molecular gas content, we consider that these galaxies are in the process of halting/quenching the star formation, in an actual transition between both groups. The analysis of the radial distributions of the starformation rate, specific star-formation rate, and molecular gas density shows that the quenching happens from inside-out involving both a decrease of the efficiency of the star formation and a deficit of molecular gas. All the intermediate data-products used to derive the results of our analysis are distributed in a database including the spatial distribution and average properties of the stellar populations and ionized gas, published as a Sloan Digital Sky Survey Value Added Catalog being part of the 14th Data Release: http://www.sdss.org/dr14/manga/manga-data/manga-pipe3d-value-added-catalog/Comment: 48 pages, 14 figures, in press in RMxA

The white dwarf binary pathways survey III: contamination from hierarchical triples containing a white dwarf

The White Dwarf Binary Pathways Survey aims at increasing the number of known detached A, F, G and K main sequence stars in close orbits with white dwarf companions (WD+AFGK binaries) to refine our understanding about compact binary evolution and the nature of Supernova Ia progenitors. These close WD+AFGK binary stars are expected to form through common envelope evolution, in which tidal forces tend to circularize the orbit. However, some of the identified WD+AFGK binary candidates show eccentric orbits, indicating that these systems are either formed through a different mechanism or perhaps they are not close WD+AFGK binaries. We observed one of these eccentric WD+AFGK binaries with SPHERE and find that the system TYC 7218-934-1 is in fact a triple system where the WD is a distant companion. The inner binary likely consists of the G-type star plus an unseen low mass companion in an eccentric orbit. Based on this finding, we estimate the fraction of triple systems that could contaminate the WD+AFGK sample. We find that less than 15 per cent of our targets with orbital periods shorter than 100 days might be hierarchical triples

First outcomes of a therapeutic platform for drug resistant epilepsy based on transcutaneous electrical vagus nerve stimulation

Aim: The aim of this paper is to discuss the main features and first outcomes of a therapeutic platform proposed to implement a public health therapeutic service for patients suffering refractory epilepsy. Methods: The proposal is a three-layer system composed by a new portable therapy device and two software applications. The therapy is transcutaneous electrical vagus nerve stimulation, known as tVNS. The primary layer is composed of tVNS devices, configured for each patient according to the instructions provided by the specialists. The middle layer is named “hospital data collector” (HDC), its main tasks are the patient enrollment, the device setup, and the database maintenance to store therapeutic parameters and session events together with the information cited previously. Each hospital center runs a HDC that is connected to a cloud application named “system cloud application (SCA)” which concentrates all the data supplied by the HDCs. Artificial intelligence methods are integrated in the SCA to predict the treatment effectiveness for every new patient based on the accumulated knowledge from the enrolled previously. Results: A version of the proposed system is running at the Institute of Neurology and Neurosurgery. The sensitivity of the therapeutic device with the proposed treatment protocol reaches 83.33% in the 18-patient pilot trial carried out. Conclusions: The proposed approach seems a useful therapeutic tool based on the pilot trial outcomes. The developed device is comfortable and suitable for the intended use. The proposed system has created the essential conditions to feed and grow a knowledge, a basic element to predict the treatment effectiveness for each new patient. It is a promising option for a refractory epilepsy therapy service

Plan estratégico de la alianza Pillsens – CVS

El aumento de la demanda de antioxidantes en Estados Unidos como parte de la creciente preocupación por un estilo de vida más saludable y las altas barreras que enfrentan los nuevos competidores, son indicios de que existen oportunidades de crecimientos para Pillsens a través de una alianza estratégica con CVS Health. En consecuencia, se plantea como objetivo general desarrollar el plan estratégico de la alianza Pillsens-CVS que permita el aumento de la participación de mercado de Pillsens en la zona suroeste de Estados Unidos. El objetivo es maximizar la rentabilidad de ambas empresas a través de la evaluación de una alianza estratégica que permita generar ventajas competitivas sostenibles en la categoría de antioxidantes. La metodología utilizada incluyó el análisis de la industria farmacéutica desde el punto de vista del retail como el del fabricante; posteriormente, se realizó el análisis interno de Pillsens y de CVS a fin de identificar los recursos y capacidades que tienen de forma individual y que pudieran contribuir al desarrollo de una alianza