Simulation of demand side participation in Spanish short term electricity markets

Demand response resources management is one of the most investigated solutions oriented to improve the efficiency in electricity markets. In this paper, the capability of customers to participate in short term markets is analyzed. An available methodology to analyze the daily and monthly energy consumptions of large customers is used to create energy offers and bids. This allows customers to participate in energy markets in order to buy, as first step, the usual electricity consumption and, additionally, to offer demand reductions in the short term electricity markets. Additionally, this paper shows the customer potential to participate in the Spanish electricity markets.Valencia Salazar, I.; Álvarez Bel, CM.; Escrivá Escrivá, G.; Alcázar Ortega, M. (2011). Simulation of demand side participation in Spanish short term electricity markets. Energy Conversion and Management. 52(7):2705-2711. doi:10.1016/j.enconman.2011.02.005S2705271152

Entomofauna asociada a las arvenses del nopal tunero (Opuntia spp.) en parcelas de manejo convencional, orgánico y zona de amortiguamiento, en Axapusco, Estado de México

Se muestreo en dos predios de nopal tunero, con manejo convencional, orgánico y zonas de amortiguamiento. Se colectaron 10,743 insectos e identificaron 115 especies de arvenses, las más abundantes fueron: Asteraceae (26), Poaceae (13) y Fabaceae (11). En las Parcelas Convencionales (PC) donde predominaron las Asteraceae se colectaron 4,932 insectos; en las Orgánicas (PO) prevalecieron las Poaceae con 2,656 ejemplares; y en las Zonas de Amortiguamiento (ZA), se colectaron 3,155 insectos. En junio se colectó la mayor cantidad de ejemplares en PC (1,282), PO (602) y ZA (565); y de mayo a octubre en PC; en invierno se colectó el mayor número de individuos en PO y ZA. Entre los Análisis de Componentes Principales y Clúster existió correspondencia, esto explica el comportamiento de Coleóptera en PC, PO y ZA; misma conducta observó Orthoptera en PC y ZA, y Díptera en PO; Hemíptera con Hymenoptera en PO; Lepidóptera en PO y ZA, parecido a Hymenoptera en PC; y Thysanoptera tuvo menor similitud en ZA, PO y PC.The collection was performed in two plots of prickly pear, with a conventional and organic management, as well as buffer zones. There were collected 10,743 insects and were identified 115 arvenses species. The most plenty were: Asteraceae (26), Poaceae (13) and Fabaceae (11). In the conventional plots (PC), where the Asteraceae predominated, 4932 insects were collected; in the organic plots (PO) the Poaceae prevailed with 2656 samples; and in the buffer zones (ZA), 3155 insects were collected. The biggest amount of samples were collected in June in PC (1282), PO (602) and ZA (565); and from May to October in PC; meanwhile, the biggest amount of insects that were collected in winter, belonged to PO and ZA. Between the Principal Component Analysis and Cluster Analysis a correspondence took place so it explains the similar behavior of Coleoptera in PC, PO and ZA; the same behavior was observed in Orthoptera in PC and ZA equivalent to Diptera in PO; as well as Hemiptera was compared with Hymenoptera in PO, Lepidoptera in PO and ZA; such as Hymenoptera in PC; however, Thysanoptera got less similarity in ZA, PO and PC.Eje A1 Sistemas de producción de base agroecológica (Trabajos científicos)Facultad de Ciencias Agrarias y Forestale

Entomofauna asociada a las arvenses del nopal tunero (Opuntia spp.) en parcelas de manejo convencional, orgánico y zona de amortiguamiento, en Axapusco, Estado de México

Se muestreo en dos predios de nopal tunero, con manejo convencional, orgánico y zonas de amortiguamiento. Se colectaron 10,743 insectos e identificaron 115 especies de arvenses, las más abundantes fueron: Asteraceae (26), Poaceae (13) y Fabaceae (11). En las Parcelas Convencionales (PC) donde predominaron las Asteraceae se colectaron 4,932 insectos; en las Orgánicas (PO) prevalecieron las Poaceae con 2,656 ejemplares; y en las Zonas de Amortiguamiento (ZA), se colectaron 3,155 insectos. En junio se colectó la mayor cantidad de ejemplares en PC (1,282), PO (602) y ZA (565); y de mayo a octubre en PC; en invierno se colectó el mayor número de individuos en PO y ZA. Entre los Análisis de Componentes Principales y Clúster existió correspondencia, esto explica el comportamiento de Coleóptera en PC, PO y ZA; misma conducta observó Orthoptera en PC y ZA, y Díptera en PO; Hemíptera con Hymenoptera en PO; Lepidóptera en PO y ZA, parecido a Hymenoptera en PC; y Thysanoptera tuvo menor similitud en ZA, PO y PC.The collection was performed in two plots of prickly pear, with a conventional and organic management, as well as buffer zones. There were collected 10,743 insects and were identified 115 arvenses species. The most plenty were: Asteraceae (26), Poaceae (13) and Fabaceae (11). In the conventional plots (PC), where the Asteraceae predominated, 4932 insects were collected; in the organic plots (PO) the Poaceae prevailed with 2656 samples; and in the buffer zones (ZA), 3155 insects were collected. The biggest amount of samples were collected in June in PC (1282), PO (602) and ZA (565); and from May to October in PC; meanwhile, the biggest amount of insects that were collected in winter, belonged to PO and ZA. Between the Principal Component Analysis and Cluster Analysis a correspondence took place so it explains the similar behavior of Coleoptera in PC, PO and ZA; the same behavior was observed in Orthoptera in PC and ZA equivalent to Diptera in PO; as well as Hemiptera was compared with Hymenoptera in PO, Lepidoptera in PO and ZA; such as Hymenoptera in PC; however, Thysanoptera got less similarity in ZA, PO and PC.Eje A1 Sistemas de producción de base agroecológica (Trabajos científicos)Facultad de Ciencias Agrarias y Forestale

Entomofauna asociada a las arvenses del nopal tunero (Opuntia spp.) en parcelas de manejo convencional, orgánico y zona de amortiguamiento, en Axapusco, Estado de México

Se muestreo en dos predios de nopal tunero, con manejo convencional, orgánico y zonas de amortiguamiento. Se colectaron 10,743 insectos e identificaron 115 especies de arvenses, las más abundantes fueron: Asteraceae (26), Poaceae (13) y Fabaceae (11). En las Parcelas Convencionales (PC) donde predominaron las Asteraceae se colectaron 4,932 insectos; en las Orgánicas (PO) prevalecieron las Poaceae con 2,656 ejemplares; y en las Zonas de Amortiguamiento (ZA), se colectaron 3,155 insectos. En junio se colectó la mayor cantidad de ejemplares en PC (1,282), PO (602) y ZA (565); y de mayo a octubre en PC; en invierno se colectó el mayor número de individuos en PO y ZA. Entre los Análisis de Componentes Principales y Clúster existió correspondencia, esto explica el comportamiento de Coleóptera en PC, PO y ZA; misma conducta observó Orthoptera en PC y ZA, y Díptera en PO; Hemíptera con Hymenoptera en PO; Lepidóptera en PO y ZA, parecido a Hymenoptera en PC; y Thysanoptera tuvo menor similitud en ZA, PO y PC.The collection was performed in two plots of prickly pear, with a conventional and organic management, as well as buffer zones. There were collected 10,743 insects and were identified 115 arvenses species. The most plenty were: Asteraceae (26), Poaceae (13) and Fabaceae (11). In the conventional plots (PC), where the Asteraceae predominated, 4932 insects were collected; in the organic plots (PO) the Poaceae prevailed with 2656 samples; and in the buffer zones (ZA), 3155 insects were collected. The biggest amount of samples were collected in June in PC (1282), PO (602) and ZA (565); and from May to October in PC; meanwhile, the biggest amount of insects that were collected in winter, belonged to PO and ZA. Between the Principal Component Analysis and Cluster Analysis a correspondence took place so it explains the similar behavior of Coleoptera in PC, PO and ZA; the same behavior was observed in Orthoptera in PC and ZA equivalent to Diptera in PO; as well as Hemiptera was compared with Hymenoptera in PO, Lepidoptera in PO and ZA; such as Hymenoptera in PC; however, Thysanoptera got less similarity in ZA, PO and PC.Eje A1 Sistemas de producción de base agroecológica (Trabajos científicos)Facultad de Ciencias Agrarias y Forestale

Environmental architecture and local sustainable development from participatory intervention models in various municipalities of Caldas, Colombia

Con base en trabajos de carácter cualitativo y con enfoque de investigación acción participación IAP, se diseñó y se pusieron en funcionamiento varias obras arquitectónicas en Manizales, Marquetalia, Pácora, Pensilvania, Samaná y Chinchiná (Caldas), no solo de beneficio urbanístico, sino ambiental y social. Se logró que las comunidades se involucraran y participaran de manera integral a través de sus familias, lo cual garantizó la pertenencia y el cuidado posterior, logrando a su vez, muy buenas relaciones entre ellos y las diferentes entidades que apoyaron el proyecto.Several architectural constructions, based on work of a qualitative nature and applying an action research approach IAP, were designed and put into operation in Manizales, Marquetalia, Pácora, Pensilvania, Samaná and Chinchiná (Caldas) not only for the urban benefit, but also for the environmental and social benefit. It was possible for communities to become involved and participate in a comprehensive manner through their families which guaranteed the sense of belonging and the subsequent care, achieving in turn very good relations between the community and the different entities that supported the project

Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.-- et al.The intimate relationship between stoichiometry and physicochemical properties in transition-metal oxides makes them appealing as tunable materials. These features become exacerbated when dealing with nanostructures. However, due to the complexity of nanoscale materials, establishing a distinct relationship between structure-morphology and functionalities is often complicated. In this regard, in the FexO/Fe3O4 system a largely unexplained broad dispersion of magnetic properties has been observed. Here we show, thanks to a comprehensive multi-technique approach, a clear correlation between the magneto-structural properties in large (45 nm) and small (9 nm) FexO/Fe3O4 core/shell nanoparticles that can explain the spread of magnetic behaviors. The results reveal that while the FexO core in the large nanoparticles is antiferromagnetic and has bulk-like stoichiometry and unit-cell parameters, the FexO core in the small particles is highly non-stoichiometric and strained, displaying no significant antiferromagnetism. These results highlight the importance of ample characterization to fully understand the properties of nanostructured metal oxides.This work was supported by the 2014-SGR-1015 and 2009-SGR-35 projects of the Generalitat de Catalunya, by the MAT2010-20616-C02, MAT2011-27380-C02-01, MAT2010-16407, MAT2013-48628-R and CSD2009-00013 projects of the Spanish Ministerio de Economía y Competitividad (MINECO), the ONDA and COEFNANO projects (no. FP7-PEOPLE-2009-IRSES-247518 and no. FP7-PEOPLE-2012-IRSES-318901) of the European Union, the Russian grants RFBR 13-02-00121, 13-02-12429 and RG 14.B25.31.0025, the Brazilian grants CNPq-304368/2010-5 and FAPEMIG-PPM 00319-11, the Argentine grants PIP 1333 (CONICET) and SECTyP 06/C404 (Univ. Nac. de Cuyo) and the Swedish Research Council (VR). Research at NCSR “D” was supported by the HSF-EU program ARISTEIA, grant COMANA/22. GSA was partially supported by the Knut and Alice Wallenberg Foundation (Project: 3DEM-NATUR). I.V.G. thanks the Generalitat de Catalunya for his sabbatical fellowship (2010 PIV 00096). M.D.B. was partially supported by an ICREA Academia award. M.E. acknowledges the Spanish Ministry of Science and Innovation through the Juan de la Cierva Program. A. G. Roca would like to thank Generalitat de Catalunya for financial support under the Beatriu de Pinós fellowship program (2011 BP_B 00209). ICN2 acknowledges support from the Severo Ochoa Program (MINECO, grant SEV-2013-0295).Peer Reviewe

TiO2:Cex onto Al Clays for Photocatalytic Solar Water Disinfection

A novel methodology was employed to prepare new nanocomposites with photocatalytic properties based on Ce-doped TiO2 nanoparticles arranged over a layered silicate. The catalysts were porous materials formed by exfoliated silicate layers surrounded by anatase nanoparticles. In this way, the anatase was doped by different amounts of Ce, yielding to catalysts with light absorption properties on the visible region. The photocatalytic behavior was tested for different reactions: adsorption and photocatalysis, showing outstanding and promising results for the removal of bacteria by using solar light as an energy source. The influence of the physicochemical properties of the catalyst and the reaction parameters will be studied in detail to manage new catalysts for the disinfection of drinking water

Global diversity and biogeography of deep-sea pelagic prokaryotes

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Diseño y desarrollo de aplicaciones de aprendizaje ubicuo

En la Universidad Nacional de Santiago del Estero se está llevando a cabo el desarrollo del proyecto de investigación titulado "Sistemas de información web personalizados, basados en ontologías, para soporte al aprendizaje ubicuo". El mismo tiene como objetivo principal desarrollar aplicaciones basadas en ontologías que den soporte al aprendizaje ubicuo. En este artículo se presentan los objetivos, los resultados alcanzados y la formación de recursos humanos concretada en el marco del proyecto.Eje: Tecnología Informática Aplicada en EducaciónRed de Universidades con Carreras en Informática (RedUNCI

Diseño y desarrollo de aplicaciones de aprendizaje ubicuo

En la Universidad Nacional de Santiago del Estero se está llevando a cabo el desarrollo del proyecto de investigación titulado "Sistemas de información web personalizados, basados en ontologías, para soporte al aprendizaje ubicuo". El mismo tiene como objetivo principal desarrollar aplicaciones basadas en ontologías que den soporte al aprendizaje ubicuo. En este artículo se presentan los objetivos, los resultados alcanzados y la formación de recursos humanos concretada en el marco del proyecto.Eje: Tecnología Informática Aplicada en EducaciónRed de Universidades con Carreras en Informática (RedUNCI