Dilepton spectra are calculated within the microscopic transport model UrQMD and compared to data from the CERES experiment. The invariant mass spectra in the mass region between 300 and 600 MeV depend strongly on the mass dependence of the ρ meson decay width which is not sufficiently determined by the Vector Meson Dominance (VMD) model. A consistent explanation of both the recent Pb+Au data a...

Gravity data of Ceres returned by the National Aeronautics and Space Administration’s Dawn spacecraft is consistent with a lower density crust of variable thickness overlying a higher density mantle. Crustal thickness variations can affect the long-term, postimpact modification of impact craters on Ceres. Here we show that the unusual morphology of the 280 km diameter crater Kerwan may result f...

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Climate change considerably impacts water needs for agricultural production, particularly in paddy crops (Oryza Sativa). The crop response is uncertain and also heterogeneous due to climate change. variables rainfall temperature directly impact productivity. A precise understanding of yields required production management plan sustainable food demand the future at state level. scenario's on ric...

simulation of rough rice drying is one of the proper methods for predicting moisture distribution in the product, and throughout the process of drying. the drying process must be well understood and controlled so that design guidelines which reduce or minimize drying damage to rough rice can be established and improved. therefore, an accurate understanding and description of the drying mechanis...

Building on the experience of NAFTA, and assuming that rules of origin (RoO) negotiated under NAFTA are likely to resemble those that would be agreed upon in an FTAA, this paper discusses how different RoO criteria would affect different Southern partners in a multi-stage production setting. Next, we use a combination of parametric and non-parametric methods to estimate the costs of RoO under N...

Maize (Zea mays L.) is an important crop among Brazilian smallholder farmers,who are also responsible for 40% of the poultry and egg production in the country.Although poultry litter is considered a potential pollutant, if properly stabilized anddistributed in the field it can be used as a source of nitrogen for maize production.In this study, the response of maize to mineral fertilizer and pou...