Non-Markovian qubit dynamics in a circuit-QED setup

We consider a circuit-QED setup that allows the induction and control of non-Markovian dynamics of a qubit. Non-Markovianity is enforced over the qubit by means of its direct coupling to a bosonic mode which is controllably coupled to other qubit-mode system. We show that this configuration can be achieved in a circuit-QED setup consisting of two initially independent superconducting circuits, each formed by one charge qubit and one transmission-line resonator, which are put in interaction by coupling the resonators to a current-biased Josephson junction. We solve this problem exactly and then proceed with a thorough investigation of the emergent non-Markovianity in the dynamics of the qubits. Our study might serve the context for a first experimental assessment of non-Markovianity in a multi-element solid-state device.Comment: 8 pages, 7 figures, slightly changed titl

Análisis bibliométrico de la revista AIEM-Avances en Investigación en Educación Matemática (2012-2016)

La Sociedad Española de Investigación en Educación Matemática (SEIEM) en el 2011 puso en marcha el proyecto de la edición de una revista, de corte científico y de interés internacional, en la que se difundan los resultados de las diferentes investigaciones que se llevan a cabo en el ámbito de la Educación Matemática, cumpliendo una doble finalidad, la de dar a conocer los diferentes avances y dificultades que afronta la educación matemática, y que esta sirva como herramienta de los investigadores para proponer y consolidar propuestas de mejora en la Educación Matemática. Así es como se concibe la revista Avances en Investigación en Educación Matemática (AIEM)

Sensemaking of Digital Transformation in Organizations - A Case Study

The increasing diffusion of digital technologies throughout industries and dimensions of life is transforming organizations. However, many organizations fail to develop a digital transformation strategy. This paper presents a theoretical sensemaking model of Digital Transformation (DT) and the preliminary outcomes of an ongoing study. The study is supported by socio-cognitive theories, including organizational sensemaking theory and its integration with technological frameworks to understand the development of DT in organizations. The findings of a pilot case study from the hotel industry provide evidence that this study could lead to a framework that could help understand DT from a socio-cognitive perspective. Additionally, the pilot case could be the basis for a broader framework, which could be used for other studies in this field, both for academics and practitioner

Pre‐historic eating patterns in Latin America and protective effects of plant‐based diets on cardiovascular risk factors

In this review, we present the contributions to nutrition science from Latin American native peoples and scientists, appreciated from a historic point of view since pre‐historic times to the modern age. Additionally, we present epidemiological and clinical studies on the area of plant‐based diets and their relation with the prevention and treatment of cardiovascular diseases conducted in recent decades, and we discuss challenges and perspectives regarding aspects of nutrition in the region

Anesthesia for Plastic Surgery Procedures

Plastic surgery is currently more popular and available with increasing frequency throughout the world. Its advances are related to progress in anesthesiology. Nowadays, it is possible to operate patients with pathologies that previously did not allow this type of surgery. The developments in perioperative monitoring, pharmacology, prevention of complications, and the wide communication between patients and physicians, as well as the development of surgical units that facilitate a prompt programming and reduce the total costs, have resulted in a logarithmic growth of plastic and reconstructive surgery procedures. Local, regional, or general anesthesia, anesthetic monitoring, or conscious sedation is used routinely, allowing to manage patients as ambulatory or short stay. Deep vein thrombosis and pulmonary embolism remain the most frequent complications, followed by postoperative pain, nausea, and vomiting

Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean

Antecedentes y Objetivos: Spigelia es un género neotropical con cerca de 90 especies distribuidas desde los Estados Unidos de América hasta Argentina. La diversidad del género presenta una separación espacial entre un grupo en Norte-Centroamérica/Caribe (NA) y otro en Sudamérica (SA), cada uno con un importante centro de diversificación. Sin embargo, el conocimiento sistemático del grupo no ha sido actualizado en los últimos 10 años, por lo que el objetivo de este trabajo es generar una sinopsis sistemática para el género distribuido en la región NA. Métodos: El trabajo se realizó a través de la búsqueda de información bibliográfica para obtener la historia taxonómica, así como trabajo de campo y revisión de material herborizado, a partir del cual se realizaron descripciones diagnósticas y mapas de distribución. Resultados clave: Se encontraron 29 especies distribuidas en la región NA, lo que representa alrededor de 30% de la diversidad del género, en las zonas tropical y subtropical. En la región NA, Mesoamérica es una de las regiones en las que se concentra la diversidad vegetal, lo que la cataloga como hotspot. El trabajo incluye información novedosa sobre la morfología del grupo, como descripciones de los caracteres polínicos y carpológicos, claves de identificación por regiones en NA y mapas de distribución en el área de estudio. Conclusiones: Este estudio representa el primer tratamiento taxonómico para el género Spigelia que incluye todas las especies de la región central y norte del continente americano. La información recopilada en este trabajo puede ser útil para ser integrada en análisis filogenéticos que ayuden a resolver las relaciones intragenéricas del grupo. Asimismo, la aplicación de herramientas de modelado de distribución potencial que permitan ubicar áreas para futuras colectas, así como el desarrollo de análisis biogeográficos que ayuden a comprender la distribución de la diversidad de Spigelia a lo largo del continente.Background and Aims: Spigelia is a Neotropical genus with about 90 species distributed from the United States of America to Argentina. The diversity of the genus presents a spatial separation with a group in North-Central America/ the Caribbean (NA) and another in South America (SA), each with an important center of diversification. However, the systematic knowledge of the group has not been updated in the last 10 years, so the objective of this work is to generate a systematic synopsis for the genus distributed in the NA region. Methods: The work was carried out through the search for bibliographic information to obtain the taxonomic history, field work and review of herbarium material, based on which diagnostic descriptions and distribution maps were made. Key results: Twenty-nine species distributed in the NA region were found, which represents about 30% of the diversity of the genus, distributed in the tropical and subtropical zones. In the NA region, Mesoamerica is one of the regions in which plant diversity is concentrated, which classifies it as a hotspot. This work includes novel information on the morphology of the group, such as descriptions of the pollen and carpological characters, identification keys for regions in NA and distribution maps in the study area. Conclusions: This study represents the first taxonomic treatment for the genus Spigelia that includes all the species of the central and northern regions of the Americas. The information collected in this work may be useful to be integrated into phylogenetic analyzes that help resolve the infrageneric relationships of the group. Likewise, the application of potential distribution modeling tools that would allow locating areas for future collection, as well as the development of biogeographic analyzes that help us understand the distribution patterns of Spigelia diversity along the continent

Shortcuts to adiabaticity in superconducting circuits for fast multi-partite state generation

Shortcuts to adiabaticity provides a flexible method to accelerate and improve a quantum control task beyond adiabatic criteria. Here we propose the reverse-engineering approach to design the longitudinal coupling between a set of qubits coupled to several field modes, for achieving a fast generation of multi-partite quantum gates in photonic or qubit-based architecture. We show that the enhancing generation time is at the nanosecond scale that does not scale with the number of system components. In addition, our protocol does not suffer noticeable detrimental effects due to the dissipative dynamics. Finally, the possible implementation is discussed with the state-of-the-art circuit quantum electrodynamics architecture.Comment: 11 pages, 8 figure