CP, T and CPT versus temporal asymmetries for entangled states of the B-d-system

The observables used in the K-system to characterize T and CPT violation are no longer useful for the Bd-system, since the width difference between the physical states is vanishingly small. We show that only Im(epsilon) and Re(delta) can survive if Delta Gamma=0, and build alternative CP-odd, CPT-odd, T-odd and temporal asymmetries for the (B_CP -> B0, B0bar) transitions. These quantities enable us to test T and CPT invariances of the effective Hamiltonian for the B-system. The method needs the CP eigenstates B_CP, which can be tagged unambiguously to order lambda^3 from the entangled states of a B-factory

Walking Toward the Demonumentalization of Qualitative Research: A Collaborative Autoethnography Account While Producing an Educational Podcast

This article examines how two teacher educators, as researchers and as research teachers, engaged in a collaborative interpretation of their autoethnographies about questioning an instrumentalist and positivist research culture in the field of English Language Teaching (ELT). The autoethnographies simultaneously emerged from the research activities related to the production of a bilingual podcast named “Conversing about Investigación Cualitativa.” Specifically, the authors conducted a qualitative study of autoethnographic and collaborative nature while working on their podcast. The data were individual written retrospective accounts, which were shared, discussed, and interpreted in online live meetings. The outcomes of the study were encapsulated in a major theme called Qualitative research: The path traveled from dogma to critical awareness, and three subsidiary themes named Questioning the culture of scientificity from our research experiences; Adopting a critical perspective (but still teaching by the book); and Empowering ourselves as teachers and as research teachers. Overall, this study emphasized a questioning attitude toward building a critical perspective from which examine alternatives to demonumentalize qualitative research without falling into extremes. Thus, it contributes to finding a balance between dogma and skepticism through a dialogue between local and global research agendas

Los fondos cavitarios. Su utilidad según la evidencia científica

Traballo de Fin de Grao en Odontoloxía. Curso 2019-2020.Objetivos Conocer qué bases cavitarias son clínicamente aceptadas según la evidencia científica para las restauraciones de composite en el sector posterior. Material y métodos Se realizó una búsqueda bibliográfica utilizando palabras clave en las bases de datos PubMed y The Cochrane Library. Seleccionamos artículos publicados en inglés en los últimos 39 años, sin restricciones respecto al tipo de estudio. Discusión y conclusiones Tanto el hidróxido de calcio como el óxido de zinc eugenol han demostrado carecer de las propiedades favorables que tradicionalmente se les atribuían como bases cavitarias. Los resultados de las investigaciones respecto al ionómero de vidrio y el composite fluido son contradictorios. No existe un consenso respecto a la utilización del ionómero de vidrio y composite fluido

Quality label and geographical indications as a business strategy: the case of ‘Brandy de Jerez’ from a PR perspective

La Indicación Geográfica Protegida (IGP), como label de calidad, supone una doble perspectiva: un valor añadido a la marca del producto, al tiempo que es una garantía de calidad mínima. Sirve para hacer alusión a productos de la industria agroalimentaria que se identifican por unas características diferentes y propias que se derivan de su procedencia geográfica, añadiendo percepción pública del mismo, controles y normativas estrictas de elaboración y un marco legal específico. En este sentido, las indicaciones geográficas protegidas juegan un importante papel en la gestión empresarial y, desde una óptica comunicacional, un rol fundamental en la gestión de las RR.PP. En este estudio realizamos un estudio del Consejo Regulador de la indicación geográfica protegida Brandy de Jerez a través del estudio de caso combinado con otras técnicas de investigación como son la entrevista, la observación directa y la consulta de fuentes de datos secundarios. Consideramos, pues, a partir de las veinte memorias anuales que el Consejo Regulador de la indicación geográfica protegida Brandy de Jerez emitió desde 1989 hasta 2008, la relación existente entre el label de calidad IGP y la gestión de las RR.PP. de las empresas y productos que quedan bajo el amparo esta protección.‘Indicación Geográfica Protegida’ (IGP) as quality label have a double perspective: value to the product brand and quality assurance that it is add to the product. Used to make reference to the food industry products that are identified by different characteristics and own derived from their geographical origin, adding public perception thereof, strict controls and regulations development and a specific legal framework. In this sense, geographical indications play an important role in business management from a communication perspective, a fundamental role in the management of PR in this study conducted a study of the ‘Consejo Regulador’ of the protected geographical indication ‘Brandy de Jerez’ (Sherry) through the case study combined with other investigative techniques such as interviews, direct observation and consultation of secondary data sources. We believe, therefore, from the twenty annual reports to the ‘Consejo Regulador de la indicación geográfica protegia del Brandy de Jerez’ issued from 1989 to 2008, the relationship between the IGP quality label and management of PR companies and products that fall under the umbrella protection

Design of an interactive module based on the van hiele model: case study of the Pythagorean Theorem

The recent increase in the number of mathematics museums has given rise to a need for tools with which to design and assess mathematics educational proposals in this non-formal context. This study proposes the use of the van Hiele model, a benchmark in mathematics instruction, for the design of interactive museum models focusing on mathematics content in general. By way of example, the model is characterised for application to the Pythagorean theorem. An interactive module designed around the aforementioned characterisation for teaching the theorem at the Museo Didáctico e Interactivo de Ciencias [interactive science instruction museum, MUDIC] may serve as a reference for future interactive modules and workshops in museums dealing with any manner of mathematics content

Incumplimiento esencial del contrato en la legislación civil y comercial colombianas a partir del moderno derecho de contratos

The present work has as main objective to analyze both the general and special rules to establish that in Colombian private law there is a place for the "essential breach" as a requirement for the origin of the action sought by one of the contracting parties against the breach of the other, of compliance with the regulation of the resolution action that enshrines article 1546 of the Civil Code and 870 of the Commercial Code in Colombia, focusing the analysis under study, mainly in the jurisprudence of the Supreme Court of Justice, without neglecting the doctrine and the current legislation. It is a type of dogmatic research based on national legislation, doctrine and jurisprudence and the uniform law of contracts.El presente trabajo tiene como objetivo principal analizar tanto las reglas generales como especiales para establecer que en el Derecho privado colombiano tiene cabida el "incumplimiento esencial" como requisito de procedencia de la acción resolutoria pretendida por uno de los contratantes frente al incumplimiento del otro, de conformidad con la regulación de la acción resolutoria que consagra el artículo 1546 del Código Civil y 870 del Código de Comercio en Colombia, centrando el análisis objeto de estudio, principalmente en la jurisprudencia de la Corte Suprema de Justicia, sin dejar de lado la doctrina y la legislación vigentes. Es un tipo de investigación dogmática que tiene como base la legislación, la doctrina y la jurisprudencia nacional y el derecho uniforme de contratos

Tucumanin, a β-hydroxy-γ-lactone bistetrahydrofuranic acetogenin from Annona cherimolia, is a potent inhibitor of mitochondrial complex I

A new β-hydroxy-γ-methyl-γ-lactone bistetrahydrofuranic acetogenin, tucumanin, with the infrequent symmetrical threo/trans/threo/trans/ threo relative configuration at the tetrahydrofuran rings was isolated from Annona cherimolia (Annonaceae) seeds. The inhibitory potency on the mitochondrial complex I of acetogenins with this relative configuration (tucumanin and asimicin) was compared with that shown by the corresponding pairs with an asymmetrical threo/trans/threo/trans/erythro relative configuration (laherradurin/rolliniastatin-2, and itrabin/molvizarin). All these compounds act as selective inhibitors of mitochondrial complex 1 in the 0.18 - 1.55 nM range.Fil: Barrachina, Isabel. Universidad de Valencia; EspañaFil: Neske, Adriana. Universidad Nacional de Tucumán; ArgentinaFil: Granell, Susana. Universidad de Valencia; EspañaFil: Bermejo, Almudena. Universidad de Valencia; EspañaFil: Chahboune, Nadia. Universidad de Valencia; EspañaFil: El Aouad, Noureddine. Universidad de Valencia; EspañaFil: Alvarez, Olga. Universidad Nacional de Tucumán; ArgentinaFil: Bardon, Alicia del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina. Universidad Nacional de Tucumán; ArgentinaFil: Zafra Polo, M. Carmen. Universidad de Valencia; Españ

Innovación y capital intangible, dos factores que inciden en la competitividad regional

En este documento se ha abordado la cuestión relativa a la medición de la competitividad tanto a nivel mundial como a nivel regional tomando como referencia diferentes estudios. Se realiza un recorrido teórico sobre el concepto de competitividad, la importancia de la valoración de los indicadores internacionales, abordando la competitividad de las regiones de Latinoamérica de manera general y notando los contrastes existentes dentro del continente. De la misma manera, se han puesto de manifiesto aquellos factores considerados claves y determinantes de la competitividad, junto a la complejidad de su medición como lo son la innovación tecnológica, como pilar de la competitividad, y el capital intangible, como un activo real para el crecimiento de la economía de América Latina.Incluye bibliografí

Madrid food banck: 20 years working on volunteering project in favor of needed people

The debate around Food Banks has reactivated at international level, especially in moments of economic crisis. Nevertheless, few scientific papers have focused on analysing the success factors of their management as institutions that work through projects, neither on estimating their social impacts. This paper aims to analyse the Madrid Food Bank which has more than 20 years of learning process based on the ?Working With People ?(WWP) model, which integrates experienced and expert knowledge of the project stakeholders as well as analysing various projects that have been carried out: Great Food Collection, Kilo Operations, Awareness journeys, etc. Results show success in their project management and therefore in the effects generated on the population since its foundation in 1994. During the last years, the creation of new University-Company bonds such as the Food Bank Chair has allowed the expansion of the scope of its actions and projects. The generation of trust in society, its organizational structure and its human capital are the key elements of the achievements of the Food Banks, managing to reach up to 172.400 people and 546 institutions over the past year

Bayesian Inference in Auditing with Partial Prior Information Using Maximum Entropy Priors

Problems in statistical auditing are usually one–sided. In fact, the main interest for auditors is to determine the quantiles of the total amount of error, and then to compare these quantiles with a given materiality fixed by the auditor, so that the accounting statement can be accepted or rejected. Dollar unit sampling (DUS) is a useful procedure to collect sample information, whereby items are chosen with a probability proportional to book amounts and in which the relevant error amount distribution is the distribution of the taints weighted by the book value. The likelihood induced by DUS refers to a 201–variate parameter p but the prior information is in a subparameter q linear function of p, representing the total amount of error. This means that partial prior information must be processed. In this paper, two main proposals are made: (1) to modify the likelihood, to make it compatible with prior information and thus obtain a Bayesian analysis for hypotheses to be tested; (2) to use a maximum entropy prior to incorporate limited auditor information. To achieve these goals, we obtain a modified likelihood function inspired by the induced likelihood described by Zehna (1966) and then adapt the Bayes’ theorem to this likelihood in order to derive a posterior distribution for q. This approach shows that the DUS methodology can be justified as a natural method of processing partial prior information in auditing and that a Bayesian analysis can be performed even when prior information is only available for a subparameter of the model. Finally, some numerical examples are presented.This research was partially funded by MINECO, Spain (grant number EC02017–85577–P)