Physico-chemical, biological and geological study of an underwater volcano in a degassing stage: Island of El Hierro

El objetivo principal del proyecto “Physico-chemical, biological and geological study of an underwater volcano in a degassing stage: Island of El Hierro”, (VULCANO-II) es estudiar, desde un punto de vista totalmente interdisciplinar, la fase de desgasificación activa del único volcán submarino monitoreado desde su nacimiento en aguas españolas. De esta forma, se pretende además, dar continuidad a los estudios multidisciplinares realizados sobre el volcán submarino de la isla de El Hierro en el contexto del proyecto del Plan Nacional VULCANO-I, (CTM2012-36317) y VULCANA (Vulcanología Canaria Submarina, IEO). Para ello, se realizará la monitorización de las propiedades físico-químicas, biológicas y geológicas del proceso eruptivo submarino de la isla de El Hierro y otros puntos sensibles, como el volcán de Enmedio entre Gran Canaria y Tenerif

Low-field magnetization process and complex permeability of FeCoBSiTa wires coated with hard magnetic CoNi layer

Biphase wires consisting of a soft magnetic amorphous nucleus surrounded by a hard magnetic CoNi layer of variable thickness were obtained by means of rotating water-quenching method and subsequent electroplating technique. Magnetization processes for all the biphase wires were resolved in terms of reversible bulging of magnetic domains and spin rotation by means of complex permeability measurements within the frequency range of 10 Hz-13 MHz. Results are interpreted in terms of CoNi layer effect on the magnetic anisotropy of the soft core. © Indian Academy of Sciences.Acknowledges the scholarship granted by DGEP-UNAM. (IB) acknowledges the financial support from Research Grant IN106808 PAPIIT-UNAM.Peer Reviewe

Identifying HLA DRB1-DQB1 alleles associated with Chlamydia trachomatis infection and in silico prediction of potentially-related peptides

Abstract HLA class II (HLA-II) genes’ polymorphism influences the immune response to Chlamydia trachomatis (Ct), it is considered a sexually transmitted infection. However, associations between HLA-II alleles and Ct-infection have been little explored in humans; this study was thus aimed at determining HLA-DRB1-DQB1 alleles/haplotypes’ effect on Ct-infection outcome in a cohort of Colombian women. Cervical sample DNA was used as template for detecting Ct by PCR and typing HLA-DRB1-DQB1 alleles/haplotypes by Illumina MiSeq sequencing. Survival models were adjusted for identifying the alleles/haplotypes’ effect on Ct-outcome; bioinformatics tools were used for predicting secreted bacterial protein T- and B-cell epitopes. Sixteen HLA-DRB1 alleles having a significant effect on Ct-outcome were identified in the 262 women analysed. DRB1*08:02:01G and DRB1*12:01:01G were related to infection-promoting events. Only the DQB1*05:03:01G allele related to clearance/persistence events was found for HLA-DQB1. HLA-DRB1 allele homozygous women were associated with events having a lower probability of clearance and/or early occurrence of persistence. Twenty-seven peptides predicted in silico were associated with protective immunity against Ct; outer membrane and polymorphic membrane protein-derived peptides had regions having dual potential for being T- or B-cell epitopes. This article describes HLA-DRB1-DQB1 alleles/haplotypes related to Ct-infection resolution and the peptides predicted in silico which might probably be involved in host immune response. The data provides base information for developing future studies leading to the development of effective prevention measures against Ct-infection

Pre- and post-Chernobyl accident levels of 129I and 137Cs in the Southern Baltic Sea by brown seaweed Fucus vesiculosus

129I is a very long-lived radionuclide (T1/2 = 15.7 × 106 years) that is present in the environment both because of natural and anthropogenic sources. In this work 129I concentration and 129I/127I ratio have been determined in seaweed Fucus vesiculosus collected in the Southern Baltic Sea during 1982 and 1986 (post-Chernobyl accident). The resulting data were evaluated in terms of 129I concentrations, 129I/127I and 129I/137Cs ratios. 129I concentrations were found to be in the order of (0.82–5.89) × 109 atoms g−1 in 1982 and (1.33–38.83) × 109 atoms g−1 in 1986. The 129I/127I ratios ranged from (22.7–87.8) × 10−10 for seaweed collected in 1982 and from (26.1–305.5) × 10-10 for seaweed collected in 1986. Also a linear relationship was established for 127I concentrations in seawater and salinity in this area, enabling the estimation of concentration factors for 127I in F. vesiculosus. The high levels of 129I and 129I/127I in the Kattegat and their gradually decreasing trend to the Baltic Sea indicates that the most important contribution to the 129I inventory in the Baltic Sea area comes from Sellafield and La Hague reprocessing plants. With respect to Chernobyl accident, 129I concentrations in samples collected in 1986 were not much higher than those expected in less contaminated samples from 1982. This supports the view that the contribution of the Chernobyl accident to 129I in the Baltic region was not significant.The authors would like to thank the Swedish Radiation Protection Authority (SSM), Spanish Ministry of Science and Technology (FIS2008-01149) and the Junta de Andalucía (EXC/2005/RNM-419) for their financial support.Peer Reviewe

Integral Management and Dynamics of Organisations

La Facultad de Ingeniería de la Universidad Católica de Colombia, conforme al factor calidad y considerando las tendencias de vanguardia en el ámbito de innovación en ingeniería, desarrollo en la tercera parte de esté congreso el tema de modelo matemático de optimización de flujo de producto, creación para un conjunto de indicadores de desempeño logístico, además de la creación de un modelo de evaluación de aprendizaje para entidades de educación superior, redes complejas para el estudio de transferencia de conocimiento, así mismo, el análisis de indicadores económicos sociales y ambientales, optimizar de incertidumbre de localización de un minorista modelo de inventarios de servicio en empresas comerciales, distribución de inventarios con ventanas de tiempo fuertes, también, asignación de aeronaves en una aerolínea en Bogotá, y para finalizar modelamiento de cadena de suministros de mango con lazo cerrado. (Redacción propia).III. Gestión Integral y Dinámica de las Organizaciones. Modelo matemático para la optimización de flujo de producto con restricciones de capacidad en un centro de distribución. Propuesta metodológica para la creación de un conjunto de indicadores para la medición del desempeño logístico. La dinámica de sistemas, una metodología que apoya la creación de un modelo de evaluación del aprendizaje para las instituciones de educación superior. Una metodología de redes complejas para el estudio de la transferencia de conocimiento. Potencial logístico de los países de América Latina y el Caribe: un análisis a partir de indicadores económicos, sociales y ambientales. Optimización bajo incertidumbre del problema de localización de un minorista. Modelo de gestión de inventarios por nivel de servicio en empresas comerciales. Gestión de sistemas de distribución de inventarios con ventanas de tiempo fuertes. Aplicación del problema de asignación de aeronaves en una aerolínea en Bogotá. Modelamiento dinámico de la cadena de suministro de mango con lazo cerrado

Marine Protected Areas and Key Biodiversity Areas of the Alboran Sea and adjacent areas

Postprin

Advances in Science No. 01

Esta publicación tiene la decidida intención de acercar la investigación que realiza la Universidad del Rosario de Bogotá, Colombia, a un gran número de lectores para mostrarles, desde el periodismo científico, el quehacer investigativo de la institución. Queremos presentarle al mundo, tal como lo dijo hace dos siglos uno de nuestros hijos más ilustres, Francisco José de Caldas, el sentido final del ejercicio de investigar: “[...] todo para bienestar de los hombres”.It is the explicit goal of this publication is to get research carried out by the Universidad del Rosario in Bogotá, Colombia to a large number of readers, showing them, through sci-ence journalism, the daily investigative work carried out at this institution. And we want the world to see it in the spirit of the ultimate meaning of the practice of research, just as it was expressed two centuries ago by one of our most illustrious sons, Francisco José de Caldas, who underlined that it is “all for the well-being of humankind.