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Assessing a bioremediation strategy in a shallow coastal system affected by a fish farm culture - Application of GIS and shellfish dynamic models in the Rio San Pedro, SW Spain

Silva C.; Yanez E.; Martin-Diaz M.L.; DelValls T.A. (2014-04-04)

An integrated multi-trophic aquaculture assessment for Pacific oyster (Crassostrea gigas) aquaculture as a bioremediation strategy in areas impacted by fish farm effluents in Rio San Pedro was assessed by combining geographic ...

Assessing the effects of native plants on the pollination of an exotic herb, the blueweed Echium vulgare (Boraginaceae)

Carvallo G.O.; Medel R.; Navarro L. (2014-04-04)

The impacts of exotic plants on the pollination and reproductive success of natives have been widely reported; however, in spite of its importance for the invasive process, the role of native plants in the pollination and ...

Assessing the impact of the invasive buff-tailed bumblebee (Bombus terrestris) on the pollination of the native Chilean herb Mimulus luteus

Esterio G.; Cares-Suarez R.; Gonzalez-Browne C.; Salinas P.; Carvallo G.; Medel R. (2014-04-04)

The arrival of exotic pollinators to new habitats may introduce new patterns of floral preference and foraging behavior that modify the structure of the resident plant-pollinator community. The aim of this paper is to ...

Assessing the micro-phytoplankton response to nitrate in Comau Fjord (42 S) in Patagonia (Chile), using a microcosms approach

Iriarte J.L.; Pantoja S.; Gonzalez H.E.; Silva G.; Paves H.; Labbe P.; Rebolledo L.; Van Ardelan M.; Haussermann V. (2014-04-04)

Anthropogenic (aquaculture) changes in environment nutrient concentrations may affect phytoplankton (biomass and taxa composition) in marine coastal waters off the Chilean Patagonia. The effects of adding nitrate (NO3 -) ...

Assessing the solar potential of roofs in Valparaíso (Chile)

Araya-Munoz D.; Carvajal D.; Saez-Carreno A.; Bensaid S.; Soto-Marquez E. (2014-04-04)

A computer routine was created with the aim of estimating the solar energy potential in an urban area of Valparaiso (Chile) constituting 366 houses, characterized by a high heterogeneity of roofing in terms of geometry and ...

Assessment of copper toxicity in soils using biomarkers of oxidative stress in Eisenia foetida

Gaete H.; Hidalgo M.E.; Neaman A.; Avila G. (2014-04-04)

Copper toxicity in soil was evaluated using biomarkers of oxidative stress (catalase enzyme activity, superoxide dismutase and lipid peroxidation) in the earthworm Eisenia foetida. Agricultural topsoils from mining areas ...

Assessment of the corrosion resistance of fermanal steel coated with TiC(N)/TiNb(CN) heterostructures for use as a biomaterial

Aperador W.; Caicedo J.C.; Vera R. (2014-04-04)

This study aims to assess corrosion resistance on multilayer coatings of [TiCN/TiNbCN]n in a physiological medium with 1, 50 and 150 bilayer periods deposited on silicon (100) and Fermanal steel (FeMnAl) substrates using ...

Assessment of the range of variation of Nγ from 60 estimation methods for footings on sand

Diaz-Segura E.G. (2014-04-04)

The range of variation of the bearing capacity factor, Nγ, was assessed using 60 estimation methods for rough footings on sand subjected to static vertical loading. The influence on the Nγ values of the use of correlations ...

Assessment of the reproductive potential of the mussel (Mytilus chilensis) from two natural populations subjected to different conditioning temperatures

Lagos L.; Uriarte I.; Yany G. (2014-04-04)

The reproductive cycles of Mytilus chilensis vary latitudinally. This species has reduced genetic and morphological differentiation due to its high potential for dispersal. Broodstocks from Yaldad Bay (Chiloé) and Zenteno ...

Asymptotic behavior of a scalar field with an arbitrary potential trapped on a Randall-Sundrum's braneworld: The effect of a negative dark radiation term on a Bianchi I brane

Escobar D.; Fadragas C.R.; Leon G.; Leyva Y. (2014-04-04)

In this work we present a phase space analysis of a quintessence field and a perfect fluid trapped in a Randall-Sundrum's Braneworld of type 2. We consider a homogeneous but anisotropic Bianchi I brane geometry. Moreover, ...

Asymptotic distribution of martingale estimators for a class of epidemic models

Fierro R. (2014-04-04)

This article is a contribution to the asymptotic inference on the parameters of a quite general class of stochastic models for the spread of epidemics developing in closed populations. Various epidemic models are contained ...

Asymptotically (anti-) de Sitter black holes and wormholes with a self-interacting scalar field in four dimensions

Anabalon A.; Cisterna A. (2014-04-04)

The aim of this paper is to report on the existence of a wide variety of exact solutions, ranging from black holes to wormholes, when a conformally coupled scalar field with a self-interacting potential containing a linear, ...

Asymptotically AdS3 solutions to topologically massive gravity at special values of the coupling constants

Garbarz A.; Giribet G.; Vasquez Y. (2014-04-04)

We study exact solutions to cosmological topologically massive gravity coupled to topologically massive electrodynamics at special values of the coupling constants. For the particular case of the so-called chiral point ...

Atmospheric corrosion

Rosales B.M.; Vera R.; De Rincon O.T.; Di Sarli A.; Rocha Valenzuela J.A.; Tidblad J. (2014-04-04)

[No abstract available]

Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment

Vera R.; Guerrero F.; Delgado D.; Araya R. (2014-04-04)

This study focuses on the behavior of galvanized steel in a corrosive marine environment and on the runoff process for the same material occurring in Valparaiso, Chile. The corrosion potential and corrosion rate evaluated ...

ATP and glutamate released via astroglial connexin 43 hemichannels mediate neuronal death through activation of pannexin 1 hemichannels

Orellana J.A.; Froger N.; Ezan P.; Jiang J.X.; Bennett M.V.L.; Naus C.C.; Giaume C.; Saez J.C. (2014-04-04)

Inflammation contributes to neurodegeneration in post-ischemic brain, diabetes, and Alzheimer's disease. Participants in this inflammatory response include activation of microglia and astrocytes. We studied the role of ...

ATP is required and advances cytokine-induced gap junction formation in microglia in vitro

Saez P.J.; Shoji K.F.; Retamal M.A.; Harcha P.A.; Ramirez G.; Jiang J.X.; Von Bernhardi R.; Saez J.C. (2014-04-04)

Microglia are the immune cells in the central nervous system. After injury microglia release bioactive molecules, including cytokines and ATP, which modify the functional state of hemichannels (HCs) and gap junction channels ...

The ATP required for potentiation of skeletal muscle contraction is released via pannexin hemichannels

Riquelme M.A.; Cea L.A.; Vega J.L.; Boric M.P.; Monyer H.; Bennett M.V.L.; Frank M.; Willecke K.; Saez J.C. (2014-04-04)

During repetitive stimulation of skeletal muscle, extracellular ATP levels raise, activating purinergic receptors, increasing Ca2+ influx, and enhancing contractile force, a response called potentiation. We found that ATP ...

Atrinquilinay

Esther Martinez (RCA VICTOR, 2011-11-07)

Attainable region analysis for continuous production of second generation bioethanol

Scott F.; Conejeros R.; Aroca G. (2014-04-04)

Background: Despite its semi-commercial status, ethanol production from lignocellulosics presents many complexities not yet fully solved. Since the pretreatment stage has been recognized as a complex and yield-determining ...

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