Search results for "iOS"
showing 10 items of 8115 documents
Más allá del voto
2007
Small but Powerful, the Primary Endosymbiont of Moss Bugs, Candidatus Evansia muelleri, Holds a Reduced Genome with Large Biosynthetic Capabilities
2014
International audience; Moss bugs (Coleorrhyncha: Peloridiidae) are members of the order Hemiptera, and like many hemipterans, they have symbiotic associations with intracellular bacteria to fulfill nutritional requirements resulting from their unbalanced diet. The primary endosymbiont of the moss bugs, Candidatus Evansia muelleri, is phylogenetically related to Candidatus Carsonella ruddii and Candidatus Portiera aleyrodidarum, primary endosymbionts of psyllids and whiteflies, respectively. In this work, we report the genome of Candidatus Evansia muelleri Xc1 from Xenophyes cascus, which is the only obligate endosymbiont present in the association. This endosymbiont possesses an extremely …
Remote sensing of vegetation dynamics in agro-ecosystems using smap vegetation optical depth and optical vegetation indices
2017
The ESA's SMOS and the NASA's SMAP missions, launched in 2009 and 2015, respectively, are the first two missions having on-board L-band microwave sensors, which are very sensitive to the water content in soils and vegetation. Focusing on the vegetation signal at L-band, we have implemented an inversion approach for SMAP that allows deriving vegetation optical depth (VOD, a microwave parameter related to biomass and plant water content) alongside soil moisture, without reliance on ancillary optical information on vegetation. This work aims at using this new observational data to monitor the phenology of crops in major global agro-ecosystems and enhance present agricultural monitoring and pre…
Surface to boundary layer coupling in the urban area of Lisbon comparing different urban canopy models in WRF
2019
Abstract This work presents a sensitivity study to evaluate different Urban Canopy Models (UCM) existing within the Weather Research and Forecasting Model (WRF) in the urban area of Lisbon, Portugal. Several hind-cast simulations were carried out for a selected period in July 2010, in which synoptic conditions favoured urban heat island formation. We aim to gain knowledge on the feedback of modified urban canopy representation in WRF on local scale meteorology and the boundary-layer dynamics over the urban area, by comparing a single layer urban canopy model (SLUCM) and a more sophisticated multi-layer building effect parametrisation (BEP). We find significant differences in the characteris…
Effect of summer pruning on some fruit quality traits in Hayward kiwifruit
2013
Introduction . The aim of our study was to analyze the effect of various levels of light availability in the fruit microenvironment (induced by summer pruning) on some fruit quality traits. Materials and methods . Two levels of summer pruning were set: removal of either 30% or 60% of the canopy leaf area. These treatments were compared with the control (unpruned vines). Two canopy layers (upper and lower) were identified in each treatment and in the control vines. At harvest, yield per cane and per shoot was recorded in the two canopy layers; fruit fresh weight, flesh firmness, total soluble solid content and total titratable acidity were measured. Fruit Total Antioxidant Capacity (TAC) and…
Por qué a Deivid le gusta Madonna. Imágenes de una "star" entre clásica y moderna
2004
Este artículo es una breve meditación sobre el nacimiento y el posterior desarrollo de una de las más importantes formas de comunicación visual de finales del siglo XX, el vídeo musical pop, y su consiguiente explotación por Madonna. La cantante estadounidense ha reciclado las iconografías clásicas del siglo XX para ofrecer en sus vídeos e imágenes promocionales un envoltorio artístico a su carrera musical dirigida a la sociedad de consumo y de los grandes medios de comunicación. (A)
Changes in surface stress at the liquid/solid interface measured with a microcantilever
2000
Abstract The bending of microfabricated silicon nitride cantilevers was used to determine surface stress changes at solid–liquid interfaces. The radius of curvature of the bent cantilever is directly proportional to changes in the differential surface stress between its opposite sides. To demonstrate the possibilities and limitations of the technique, cantilevers coated on both sides with gold and densely packed monolayers of different thiols were put in a constant flow of aqueous electrolyte solution and the deflection was measured using a optical lever technique. Changes in the surface stress for the different thiol monolayers due to specific proton adsorption are presented. Possible appl…
Una propuesta sobre enseñanza de la relatividad en el bachillerato como motivación para el aprendizaje de la física
2007
Relativity is a very important part of modern physics. In this paper we analyze the teaching and learning of the theory of relativity in secondary education and we show some reasoned arguments against traditional methods to teach it. Finally, a didactic proposal for the teaching of relativity is presented; it comes as a conclusion that it is possible a suitable teaching of the principles of relative which should bring into the students a change in attitude, concepts and methodology.
Determinazione e monitoraggio della capacità antiossidante di vini rossi Siciliani provenienti da cultivar diverse e sviluppo di metodologie analitic…
2007
Puntos de encuentro musicales a las orillas del Mediterráneo: Nápoles y Valencia (ca. 1450-1550)
2000
Síntesis ponderativa de la espléndida capilla musical que el rey Alfonso el Magnánimo portó consigo a Nápoles: predominancia de cantantes hispanos y francoflamencos, sus compositores y su repertorio (deducible). El cambio de orientación impresa por el sucesor Ferrante I y la recuperación de aquélla del Duque de Calabria en Valencia.