Evaluation of reproductive success in Senecio coincyi Rouy, a threatened species from Spain

Senecio coincyi Rouy (Asteraceae) is a threatened endemic species from the mountains of Sierra de Gredos, centraf western Spain. This species is protected by the Autonomous Community of Castile and León (Spain) and is included in the "In danger of extinction" category in the protected flora catalogue of that region. It was later catalogued as Vulnerable (VU) on the Red List of Threatened Spanish Vascular Flora (Moreno et al., 2008). In this paper, the results of a two-year investigation of S. coincyi population biology are shown. The aim of this work was to study several aspects of S. coincyi reproductive biology

Seed production and germination of the endangered species Astragalus gines-lopezii

Astragalus gines-lopeziiTalavera era/. {Fabaceae} is an endemic species from southwest Spain with a very limited area of distribution. There are only two known populations of this species, totaling less than 1000 individuals. This species was included on the Red List of Threatened Spanish Vascular Flora in 2008 in the category Endangered (EN) (Moreno 2008). The restricted area of distribution, limited number of individuals and their population structure could represent a high risk for survival of this species. Therefore, in order to detect potential threats, we have studied some key aspects of its reproductive biology. Fructification success and seed production were evaluated, and morphological and physiological seed variability were also studied

Escola secundária e formação para o trabalho na Argentina: políticas e saberes em disputa

This article aims to analyze the relationships between educational policies and work formation in secondary schools in Neuquén (Argentina), connecting regulations and didactic-pedagogical devices that are implemented in educational institutions. In order to do this, we consider policies as a dispute field, in its definition, as well as in its implementation in schools. To achieve our goal, we review regulations focalized in work formation and analyze, using qualitative methodologies, their implementation in secondary schools. After analysis, we propose that linkages between practices and regulations are diverse (sometimes educational practices anticipate regulations and other times schools give partial answers to them), and the ways of implementation may or may not contribute the democratization of student participation (and consequently an equitable distribution of knowledge), as well as conceptions about the world of work, society and subject.Este artículo tiene como objetivo analizar las relaciones entre políticas educativas y propuestas de formación para el trabajo en escuelas secundarias de Neuquén (Argentina), poniendo en diálogo normativas y dispositivos didáctico-pedagógicos que implementan las instituciones, desde una perspectiva que considera las políticas como un campo de disputas tanto en su definición, como en su puesta en acto en las escuelas. Para ello, relevamos normativas sobre propuestas pedagógicas situadas en contextos de trabajo y analizamos, desde metodologías cualitativas, su puesta en acto en escuelas secundarias centradas en la formación para el trabajo. Luego del análisis, planteamos que las vinculaciones con las normativas son diversas (a veces las prácticas educativas las anticipan y otras las escuelas dan respuestas parciales a ellas), y las formas de implementación pueden favorecer o no la democratización de la participación de estudiantes (y con ello la distribución equitativa de saberes), así como concepciones sobre mundo del trabajo, sociedad y sujeto.Este artigo tem como objetivo analisar as relações entre políticas educativas e propostas de formação para o trabalho em escolas secundárias de Neuquén (Argentina), colocando em diálogo normativas e dispositivos didático-pedagógicos que implementam as instituições, desde uma perspectiva que considera as políticas como um campo de disputas tanto em sua definição, como em sua colocação em ato nas escolas. Para isso, relevamos normativas sobre propostas pedagógicas situadas em contextos de trabalho e analisamos, desde metodologias qualitativas, sua colocação em ato em escolas secundárias centradas na formação para o trabalho. Logo da análise, propomos que as vinculações com as normativas são diversas (às vezes as práticas educativas as antecipam e outras as escolas dão respostas parciais a elas), e as formas de implementação podem favorecer ou não a democratização da participação de estudantes (e com isso a distribuição equitativa de saberes), assim como concepções sobre mundo do trabalho, sociedade e sujeito

Functional relationships between wood structure and vulnerability to xylem cavitation in races of Eucalyptus globulus differing in wood density

Wood density can be considered as a measure of the internal wood structure, and it is usually used as a proxy measure of other mechanical and functional traits. Eucalyptus is one of the most important commercial forestry genera worldwide, but the relationship between wood density and vulnerability to cavitation in this genus has been little studied. The analysis is hampered by, among other things, its anatomical complexity, so it becomes necessary to address more complex techniques and analyses to elucidate the way in which the different anatomical elements are functionally integrated. In this study, vulnerability to cavitation in two races of Eucalyptus globulus Labill. with different wood density was evaluated through Path analysis, a multivariate method that allows evaluation of descriptive models of causal relationship between variables. A model relating anatomical variables with wood properties and functional parameters was proposed and tested. We found significant differences in wood basic density and vulnerability to cavitation between races. The main exogenous variables predicting vulnerability to cavitation were vessel hydraulic diameter and fibre wall fraction. Fibre wall fraction showed a direct impact on wood basic density and the slope of vulnerability curve, and an indirect and negative effect over the pressure imposing 50% of conductivity loss (P50) through them. Hydraulic diameter showed a direct negative effect on P50, but an indirect and positive influence over this variable through wood density on one hand, and through maximum hydraulic conductivity (ks max) and slope on the other. Our results highlight the complexity of the relationship between xylem efficiency and safety in species with solitary vessels such as Eucalyptus spp., with no evident compromise at the intraspecific level.Estación Experimental Agropecuaria BarilocheFil: Barotto, Antonio José. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Monteoliva, Silvia Estela. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gyenge, Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil. Consejo Nacional de Investigaciones Cientificas y Técnicas; ArgentinaFil: Martinez Meier, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Forestales. Grupo de Ecología Forestal; ArgentinaFil: Fernandez, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil. Consejo Nacional de Investigaciones Cientificas y Técnicas; Argentin

Smart Vehicle to Grid Interface Project: Electromobility Management System Architecture and Field Test Results

This paper presents and discusses the electromobility management system developed in the context of the SMARTV2G project, enabling the automatic control of plug-in electric vehicles' (PEVs') charging processes. The paper describes the architecture and the software/hardware components of the electromobility management system. The focus is put in particular on the implementation of a centralized demand side management control algorithm, which allows remote real time control of the charging stations in the field, according to preferences and constraints expressed by all the actors involved (in particular the distribution system operator and the PEV users). The results of the field tests are reported and discussed, highlighting critical issues raised from the field experience.Comment: To appear in IEEE International Electric Vehicle Conference (IEEE IEVC 2014

Replication stress caused by low MCM expression limits fetal erythropoiesis and hematopoietic stem cell functionality

Replicative stress during embryonic development influences ageing and predisposition to disease in adults. A protective mechanism against replicative stress is provided by the licensing of thousands of origins in G1 that are not necessarily activated in the subsequent S-phase. These `dormant' origins provide a backup in the presence of stalled forks and may confer flexibility to the replication program in specific cell types during differentiation, a role that has remained unexplored. Here we show, using a mouse strain with hypomorphic expression of the origin licensing factor mini-chromosome maintenance (MCM)3 that limiting origin licensing in vivo affects the functionality of hematopoietic stem cells and the differentiation of rapidly-dividing erythrocyte precursors. Mcm3-deficient erythroblasts display aberrant DNA replication patterns and fail to complete maturation, causing lethal anemia. Our results indicate that hematopoietic progenitors are particularly sensitive to replication stress, and full origin licensing ensures their correct differentiation and functionality.We thank members of our laboratories for helpful discussions, Marcos Malumbres (CNIO) for advice on the design of the Mcm3-Lox allele, Isabel Blanco for her administrative help with mouse work and Soraya Ruiz for excellent handling of the mouse colony in J.M.'s group. Research was supported by the Spanish Ministry of Economy and Competitiveness (grants BFU2013-49153-P and Consolider-Ingenio CSD2007-00015 to J.M., SAF2011-23753 to O.F.-C., BFU2012-35892 to J.I.) and RO1 HL092471 to E.P., S.A. was the recipient of an EMBO short-term fellowship to visit E.P.'s laboratory at UCSF. We are grateful to Manuel Serrano (CNIO), Almudena Ramiro (CNIC) and Arkaitz Ibarra (The Salk Institute, USA) for useful comments on the manuscript.S

Escuela secundaria y trabajo: Un estado del arte de la investigación argentina entre 2003-2016

Este capítulo realiza el estado del arte sobre escuela secundaria y trabajo basadoen investigaciones realizadas en la Argentina entre 2003-2016.El vinculo escuela-trabajo es una construcción sociohistórica compleja que en cada contexto y período cobra nuevos significados. En este caso, el foco se centra en las definiciones queha adoptado particularmente la producción de investigaciones sobre educaciónsecundaria. El estado del arte recorre resultados de investigación queabarcan tanto problemáticas a nivel del sistema educativo sobre educaciónsecundaria y trabajo, como hallazgos a nivel institucional, y acerca de las experiencias y expectativas de los estudiantes como de sus trayectorias postescolares.En las conclusiones, se recuperan algunos de los interrogantes transversales queatraviesan este trabajo: ¿Qué temas y problemas de investigación tradicionales y nuevos abordaron las investigaciones del periodo? ¿En qué contextos depolíticas, y de discusiones conceptuales y metodológicas surgieron los nuevosaportes a nivel sistémico, institucional y de los sujetos educativos? ¿Qué nuevoshallazgos contextuados sociohistórica y geográficamente se efectuaron a tradicionales discusiones sobre las relaciones educación secundaria y trabajo? Así, seretoman reflexiones referentes a temáticas como adecuacionismo, desigualdades,tensiones y articulaciones entre el mundo de la educación y mundo del trabajo.En referencia al corpus seleccionado, se incluyen 53 trabajos. Sus aportesrespecto a los ejes estructurantes de este capítulo son recogidos en diferentespartes. Cabe aclarar que los trabajos cubren con frecuencia también otros temaso problemas, que no se discuten en este capítulo.La mayoría del material que conforma el corpus, proviene de universidades,organismos del Estado y del Conicet. A la vez, por la envergadura del estudio,se destaca el seguimiento de la educación técnico-profesional realizado porel Instituto Nacional de Educación Tecnológica (inet). En relación con eltipo de producto, se tomaron nueve tesis de posgrado, 12 artículos en revistasindexadas, 12 informes de organismos de investigación, capítulos de libros,libros y ponencias.5Atendiendo a este corpus, este escrito se organiza a partir de áreas de interéso temas que agrupan a estos estudios. En primer lugar, se presentan aquellosque estudian aspectos relativos al sistema educativo, muchos refiriéndose a lasescuelas técnicas en particular; en segundo lugar, los estudios sobre prácticaspedagógicas desde diversos abordajes; en tercer lugar, trabajos que abordan lossentidos del trabajo en las escuelas y, por último, investigaciones que se enfocanen estudios sobre transiciones laborales postescuela secundaria.Fil: Jacinto, Claudia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martinez, Silvia Marcela. Universidad Nacional del Comahue. Facultad de Ciencias de la Educación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fernandez, Natalia Noemí. Universidad Nacional del Comahue. Facultad de Ciencias de la Educación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Giampaoletti, Noelia Yanina. Universidad Nacional de Cuyo. Instituto Multidisciplinario. Instituto de Trabajo y Produccion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaFil: Ganem, María Jose. No especifíca;Fil: Pozzer, Jose. No especifíca

New 1-aryl-3-substituted propanol derivatives as antimalarial agents

This paper describes the synthesis and in vitro antimalarial activity against a P. falciparum 3D7 strain of some new 1-aryl-3-substituted propanol derivatives. Twelve of the tested compounds showed an IC50 lower than 1 μM. These compounds were also tested for cytotoxicity in murine J774 macrophages. The most active compounds were evaluated for in vivo activity against P. berghei in a 4-day suppressive test. Compound 12 inhibited more than 50% of parasite growth at a dose of 50 mg/kg/day. In addition, an FBIT test was performed to measure the ability to inhibit ferriprotoporphyrin biocrystallization. This data indicates that 1-aryl-3-substituted propanol derivatives hold promise as a new therapeutic option for the treatment of malaria

Citizen science and expert judgement: A cost-efficient combination to monitor and assess the invasiveness of non-indigenous fish escapees

Mapping the distribution and evaluating the impacts of marine non-indigenous species (NIS) are two fundamental tasks for management purposes, yet they are often time consuming and expensive. This case study focuses on the NIS gilthead seabream Sparus aurata escaped from offshore farms in Madeira Island in order to test an innovative, cost-efficient combined approach to risk assessment and georeferenced dispersal data collection. Species invasiveness was screened using the Aquatic Species Invasiveness Screening Kit (AS-ISK), and revealed a high invasion risk. Occurrences of S. aurata were assessed involving citizens in GIS participatory mapping and data from recreational fishing contests. A probability map showed that S. aurata is well dispersed around Madeira Island. This assessment proved to be a cost-efficient early warning method for detecting NIS dispersal, highlighting the urgent need for additional surveys that should search for sexually mature individuals and assess the direct and indirect impacts in the native ecosystemFundação para a Ciência e Tecnologia - FCTinfo:eu-repo/semantics/publishedVersio