Evaluation of Power System Security with Petri Nets

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Deciphering the Chemical Basis of Fluorescence of a Selenium-Labeled Uracil Probe when Bound at the Bacterial Ribosomal A-Site

We unveil in this work the main factors that govern the turn-on/off fluorescence of a Se-modified uracil probe at the ribosomal RNA A-site. Whereas the constraint into an “in-plane” conformation of the two rings of the fluorophore is the main driver for the observed turn-on fluorescence emission in the presence of the antibiotic paromomycin, the electrostatics of the environment plays a minor role during the emission process. Our computational strategy clearly indicates that, in the absence of paromomycin, the probe prefers conformations that show a dark S1 electronic state with participation of nπ* electronic transition contributions between the selenium atom and the π-system of the uracil moiety

Evaluación del impacto económico de los sags de usuarios industriales en un sistema de distribución

Las industrias modernas utilizan equipos que son altamente sensibles a las fluctuaciones en la tensión de suministro, conocidas como SAGS, que causan fallas y salidas de funcionamiento de varios minutos y hasta horas. Es conveniente contar con una metodología que permita identificar, evaluar y, si es posible, penalizar a los responsables de los daños que puedan causar los SAGS dentro de la industria. Este artículo propone la utilización de redes bayesianas para la identificación, clasificación y evaluación de las pérdidas económicas ocasionadas por los SAGS en las industrias. Finalmente se presenta un caso de aplicación de la metodología a un sistema eléctrico de la industria de malta

Dry Matter Yield of Promising \u3cem\u3ePanicum maximum\u3c/em\u3e Genotypes in Response to Phosphorus and Liming on Brazilian Savannah

Soil fertility of the Brazilian savannah Cerrado is naturally poor. Extensive areas of pastures located in the central part of territory are cultivated with Brachiaria grasses which are less demanding for soil nutrients and lime (Rao et al. 1998). On the other hand, Panicum maximum cultivars such as the high yielding Mombaça grass recommended to intensive beef and dairy cattle systems (Euclides et al. 2008), must be seeded with a higher amount of fertilizer, especially phosphorus (P). Consequently there is an effort for selection of P. maximum genotypes with low P demand and high responsiveness. The objective of this study was to evaluate dry matter yield of genotypes of P. maximum in response to doses of P and lime in the Brazilian Cerrado

Evaluación del impacto económico de los sags de usuarios industriales en un sistema de distribución

Las industrias modernas utilizan equipos que son altamente sensibles a las fluctuaciones en la tensión de suministro, conocidas como SAGS, que causan fallas y salidas de funcionamiento de varios minutos y hasta horas. Es conveniente contar con una metodología que permita identificar, evaluar y, si es posible, penalizar a los responsables de los daños que puedan causar los SAGS dentro de la industria. Este artículo propone la utilización de redes bayesianas para la identificación, clasificación y evaluación de las pérdidas económicas ocasionadas por los SAGS en las industrias. Finalmente se presenta un caso de aplicación de la metodología a un sistema eléctrico de la industria de malta

BRS Sarandi: A New Andropogon Gayanus Cultivar for Tropical Pastures

BRS Sarandi is adapted to low and medium fertility soils. It has a medium-high height, with a semi-erect growth habit and a high total number of tillers. The annual productivity of dry matter is 11 t ha-1, concentrated in the rainy season (90%). Of the total DM produced, 60% are leaves. The levels of crude protein (CP), in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF) and acid detergent fiber (ADF) are, on average, 8.7, 56.5, 66.7 and 38.2%, respectively. . The average daily weight gain was 0.7 kg/head/day, the gain per was and 1.7 kg ha-1 day with no supplementation except for mineral salt. The weight gain per area (AG) reached 15 @/ha/year with an average stocking rate of 2.5 AU. BRS Sarandi was registered in the Brazilian Cultivar Registry (Registro Nacional de Cultivares - RNC/MAPA) and is protected in the National Cultivar Protection System (Sistema Nacional de Proteção de Cultivares - SNPC/MAPA)

Editorial: Obesogenic Environmental Conditions Affect Neurodevelopment and Neurodegeneration

Editorial on the Research Topic. Obesogenic Environmental Conditions Affect Neurodevelopment and Neurodegeneratio