CIRCUITO ECO TURÍSTICO MARINO COSTERO: PUERTO SALAVERRY - BAHÍA DE GUAÑAPE (LA LIBERTAD - PERÚ)

La biodiversidad de toda la región desértica se restringe a pequeños espacios relativamente aislados donde se forman cuerpos de aguas permanentes y temporales o donde la humedad es suficiente para sostener la vida. El presente trabajo es una propuesta para la apertura del circuito eco turístico marino costero: Puerto Salaverry– Bahía de Guañape (La Libertad - Perú), con la finalidad de rescatar el espacio natural y permitir un mejor uso y aprovechamiento de los recursos que ella contiene, con el  reconocimiento de los ecosistemas marino costero del ámbito del proyecto. Tiene como objetivo reconocer los ecosistemas marinos costeros del ámbito del circuito propuesto, que permita promover y propiciar el reconocimiento, el manejo racional y sostenible. Reuniendo, ordenando y verificando los elementos biofísicos del entorno de la propuesta y consoliden los objetivos puntuales de promover la conservación y promoción responsable del ambiente, la flora y fauna del circuito, propiciar el uso prudente y sostenible del circuito como recurso eco turístico, promover la protección, valoración y aprovechamiento racional de los recursos del circuito (naturales y culturales) la biodiversidad del área para la promoción turística, recreacional y los fines del desarrollo sostenible propiciando la creación de oportunidades y emprendimientos. Realizándose una prospección de referencia y en situ  de la ruta y las áreas o zonas del ámbito considerados más propicios como temática del circuito en el contexto arqueológico, histórico, biológico, etnológico. Se han identificado cuatro tipos de ecosistemas: los ribereños, los humedales, los desiertos y las lomas. Estas últimas las más extensas y las más importantes en términos de biodiversidad. Palabras Clave: Ecoturismo, recurso marino, playas, arqueología, ecología.ABSTRACTThe biodiversity of the entire desert region is restricted to relatively isolated small spaces where permanent and temporary bodies of water are formed or where humidity is sufficient to sustain life. The present work is a proposal for the opening of the coastal marine eco tourist circuit: Puerto Salaverry - Bahía de Guañape (La Libertad - Peru), with the purpose of rescuing the natural space and allowing a better use and use of the resources that it contains , with the recognition of coastal marine ecosystems within the scope of the project. Its objective is to recognize coastal marine ecosystems within the scope of the proposed circuit, in order to promote and promote recognition, rational and sustainable management. Gathering, ordering and verifying the biophysical elements of the environment of the proposal and consolidate the specific objectives of promoting the conservation and responsible promotion of the environment, the flora and fauna of the circuit, promoting the prudent and sustainable use of the circuit as an eco-tourism resource, promoting protection, valuation and rational use of the resources of the circuit (natural and cultural) the biodiversity of the area for the tourist, recreational promotion and the aims of the sustainable development propitiating the creation of opportunities and undertakings. Carrying out a reference and on-site survey of the route and the areas or areas of the area considered most favorable as a circuit theme in the archaeological, historical, biological, ethnological context. Four types of ecosystems have been identified: riparian, wetlands, deserts and hills. The latter are the most extensive and the most important in terms of biodiversity. Keywords: Ecotourism, seaside resort, beaches, archeology, ecology

Decoupling of soil nutrient cycles as a function of aridity in global drylands

18 páginas.- 10 figuras.- 72 referencias.- Online Content Any additional Methods, Extended Data display items and Source Data are available in the online version of the paper; references unique to these sections appear only in the online paper..- Puede conseguir el texto completo en el Portal de la producción científica de la Universidad Complutense de Madrid https://produccioncientifica.ucm.es/documentos/5ec78dc52999520a1d557660 .- o en lel respositorio institucional CONICET digital https://ri.conicet.gov.ar/bitstream/handle/11336/29204/CONICET_Digital_Nro.ead4e2ed-0da6-4041-814b-259e8f27bbf6_D.pdf?sequence=5&isAllowed=yThe biogeochemical cycles of carbon (C), nitrogen (N) and phosphorus (P) are interlinked by primary production, respiration and decomposition in terrestrial ecosystems1. It has been suggested that the C, N and P cycles could become uncoupled under rapid climate change because of the different degrees of control exerted on the supply of these elements by biological and geochemical processes1,2,3,4,5. Climatic controls on biogeochemical cycles are particularly relevant in arid, semi-arid and dry sub-humid ecosystems (drylands) because their biological activity is mainly driven by water availability6,7,8. The increase in aridity predicted for the twenty-first century in many drylands worldwide9,10,11 may therefore threaten the balance between these cycles, differentially affecting the availability of essential nutrients12,13,14. Here we evaluate how aridity affects the balance between C, N and P in soils collected from 224 dryland sites from all continents except Antarctica. We find a negative effect of aridity on the concentration of soil organic C and total N, but a positive effect on the concentration of inorganic P. Aridity is negatively related to plant cover, which may favour the dominance of physical processes such as rock weathering, a major source of P to ecosystems, over biological processes that provide more C and N, such as litter decomposition12,13,14. Our findings suggest that any predicted increase in aridity with climate change will probably reduce the concentrations of N and C in global drylands, but increase that of P. These changes would uncouple the C, N and P cycles in drylands and could negatively affect the provision of key services provided by these ecosystems.This research is supported by the European Research Council (ERC) under the European Community's Seventh Framework Programme (FP7/2007-2013)/ERC Grant agreement no. 242658 (BIOCOM), and by the Ministry of Science and Innovation of the Spanish Government, grant no. CGL2010-21381. CYTED funded networking activities (EPES, Acción 407AC0323). M.D.-B. was supported by a PhD fellowship from the Pablo de Olavide University.Peer reviewe

Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds

We compare the Gaia DR2 and Gaia EDR3 performances in the study of the Magellanic Clouds and show the clear improvements in precision and accuracy in the new release. We also show that the systematics still present in the data make the determination of the 3D geometry of the LMC a difficult endeavour; this is at the very limit of the usefulness of the Gaia EDR3 astrometry, but it may become feasible with the use of additional external data. We derive radial and tangential velocity maps and global profiles for the LMC for the several subsamples we defined. To our knowledge, this is the first time that the two planar components of the ordered and random motions are derived for multiple stellar evolutionary phases in a galactic disc outside the Milky Way, showing the differences between younger and older phases. We also analyse the spatial structure and motions in the central region, the bar, and the disc, providing new insights into features and kinematics. Finally, we show that the Gaia EDR3 data allows clearly resolving the Magellanic Bridge, and we trace the density and velocity flow of the stars from the SMC towards the LMC not only globally, but also separately for young and evolved populations. This allows us to confirm an evolved population in the Bridge that is slightly shift from the younger population. Additionally, we were able to study the outskirts of both Magellanic Clouds, in which we detected some well-known features and indications of new ones

Comparación empírica de la eficiencia de algunas técnicas de tratamiento de datos faltantes aplicadas al análisis de regresión lineal múltiple.

En este trabajo se caracterizan algunas de las más comunes técnicas estadísticas de tratamiento de datos faltantes y se comparan empíricamente a través de una simulación para determinar cuál es la más eficiente en la estimación de los coeficientes de regresión y de determinación de un modelo lineal de regresión múltiple con dos variables explicativas y un patrón univariado de datos faltantes sobre una de las variables. Se midieron la eficiencia relativa a través del error cuadrático medio y con base en las estimaciones por intervalos de confianza de los coeficientes de regresión a través de su cubierta y amplitud. Los resultados sugieren que análisis de casos completos, debe ser usado cuando el porcentaje de faltantes es pequeño y bajo mecanismos completamente al azar. En general, para todas las técnicas cuando el porcentaje aumenta, las estimaciones de los coeficientes de determinación y regresión se vuelven ineficientes alterando la cubierta y amplitud de los intervalos de confianza de los coeficientes de regresión. El análisis de casos disponibles y la imputación de la media no condicional y condicional no son recomendables porque producen en muchos casos estimaciones ineficientes de los coeficientes de determinación y de regresión. El algoritmo EM es una técnica eficiente y menos sensible a mecanismos que no son completamente al azar

Proyecto integrado de lenguas : mi portfolio : valorando nuestras lenguas y culturas

Seleccionado en la convocatoria: Ayudas a la innovación e investigación educativa en centros docentes de niveles no universitarios, Gobierno de Aragón 2008-09Se establece un marco común de las lenguas que coexisten en el IES Valle del Jiloca de Calamocha y se trabaja en su conocimiento lingüístico y cultural de forma coordinada. Los profesores trabajan en equipo las áreas lingüísticas y los alumnos de primero de ESO inician la elaboración individual del portfolio. La existencia de un aula de español y la presencia de ayudantes lingüísticos y de conversación de diferentes nacionalidades que motivan a los alumnos a aprender y conocer diferentes culturas ha ayudado en el desarrollo de los objetivos: fomento de un aprendizaje y una enseñanza lingüística más reflexiva; propuesta de un lenguaje común -descriptores- y adquisición de unas competencias lingüísticas identificables y reconocibles por todos; adquisición y desarrollo de actitudes y valores positivos respecto al aprendizaje de diversas lenguas y la relación con su cultura. Se han elaborado descriptores de las diferentes áreas.Gobierno de Aragón. Departamento de Educación, Cultura y DeporteAragónDirección General de Política Educativa; Avda. Gómez Laguna, 25, 2 Pl.; 50009 Zaragoza; Tel. +34976715416; Fax +34976715496ES

Mi portfolio : valorando nuestras lenguas y culturas. II

Seleccionado en la convocatoria: Ayudas a la innovación e investigación educativa en centros docentes de niveles no universitarios, Gobierno de Aragón 2009-10Segunda convocatoria de este proyecto realizado por los profesores del IES Valle del Jiloca de Calamocha que establece un marco común de las lenguas que coexisten en él y se trabaja en su conocimiento lingüístico y cultural de forma coordinada. Los profesores trabajan en equipo las áreas lingüísticas y los alumnos de segundo de ESO continúan con la elaboración del portafolio. La existencia de un aula de español y la presencia de ayudantes lingüísticos y de conversación de diferentes nacionalidades siguen ayudando en el desarrollo de los objetivos: fomento de un aprendizaje y una enseñanza lingüística más reflexiva; propuesta de un lenguaje común; adquisición de unas competencias lingüísticas identificables y reconocibles por todos; y adquisición y desarrollo de actitudes y valores positivos respecto al aprendizaje de diversas lenguas. Se han elaborado descriptores de las diferentes áreas.Gobierno de Aragón. Departamento de Educación, Cultura y DeporteAragónDirección General de Política Educativa; Avda. Gómez Laguna, 25, planta 2; 50009 Zaragoza; Tel. +34976715416; Fax +34976715496ES

Transformative Research

Decanos de la Universidad del Rosario hablan sobre la transformación de la investigación desde cada facultadDeans of the University of Rosario talk about the transformation of research from each facult

Discovering HIV related information by means of association rules and machine learning

Acquired immunodeficiency syndrome (AIDS) is still one of the main health problems worldwide. It is therefore essential to keep making progress in improving the prognosis and quality of life of affected patients. One way to advance along this pathway is to uncover connections between other disorders associated with HIV/AIDS-so that they can be anticipated and possibly mitigated. We propose to achieve this by using Association Rules (ARs). They allow us to represent the dependencies between a number of diseases and other specific diseases. However, classical techniques systematically generate every AR meeting some minimal conditions on data frequency, hence generating a vast amount of uninteresting ARs, which need to be filtered out. The lack of manually annotated ARs has favored unsupervised filtering, even though they produce limited results. In this paper, we propose a semi-supervised system, able to identify relevant ARs among HIV-related diseases with a minimal amount of annotated training data. Our system has been able to extract a good number of relationships between HIV-related diseases that have been previously detected in the literature but are scattered and are often little known. Furthermore, a number of plausible new relationships have shown up which deserve further investigation by qualified medical experts

Plant Species Richness and Ecosystem Multifunctionality in Global Drylands

Acknowledgments: The long-term data on the demography and foraging ecology of wandering albatrosses at Possession Island, Crozet Islands, were supported by the French Polar Institute IPEV (program no. 109 to H.W.), with additional funding from the Prince Albert II de Monaco Foundation. The study is a contribution to the Program ANR Biodiversité 2005-11 REMIGE. We acknowledge the modeling groups, the Program for Climate Model Diagnosis and Intercomparison (PCMDI), and the World Climate Research Programme’s (WCRP’s) Working Group on Coupled Modeling (WGCM) for their roles in making available the WCRP CMIP-3 multimodel data set. Support for data and model selection was provided by S. Jenouvrier. We thank the many field workers involved in the Crozet long-term monitoring since 1966 and in tracking programs since 1989, and D. Besson for help with the management of the demographic database. M.L. was funded by a postdoctoral contract of the Spanish Ministry of Education and Science (Ref. EX2007-1148) and Marie Curie Individual Fellowship (PIEF-GA-2008-220063). We are grateful to L. Riotte-Lambert for help with data analysis and C. Barbraud, C. A. Bost, Y. Cherel, and S. Jenouvrier for comments on the manuscript.Experiments suggest that biodiversity enhances the ability of ecosystems to maintain multiple functions, such as carbon storage, productivity, and the buildup of nutrient pools (multifunctionality). However, the relationship between biodiversity and multifunctionality has never been assessed globally in natural ecosystems. We report here on a global empirical study relating plant species richness and abiotic factors to multifunctionality in drylands, which collectively cover 41% of Earth’s land surface and support over 38% of the human population. Multifunctionality was positively and significantly related to species richness. The best-fitting models accounted for over 55% of the variation in multifunctionality and always included species richness as a predictor variable. Our results suggest that the preservation of plant biodiversity is crucial to buffer negative effects of climate change and desertification in drylands.Depto. de Biodiversidad, Ecología y EvoluciónFac. de Ciencias BiológicasTRUEpu