The manuscript “Uncertainties in model predictions of nitrogen fluxes from agroecosystems in Europe” describes a study in which the propagation of uncertainty in input parameters and coefficients used in the model INTEGRATOR to estimates of fluxes of reactive nitrogen (N2O, NOx, NH3, leaching and runoff of N) is assessed. The authors study both the quantitative overall uncertainty of these Nr f...

13C labeling experiments in aerobic glucose limited cultures of Saccharomyces cerevisiae at four different growth rates (0.054; 0.101, 0.207, 0.307 h-1) are used for calculating fluxes that include intracellular cycles (e.g., storage carbohydrate cycles, exchange fluxes with amino acids), which are rearranged depending on the growth rate. At low growth rates the impact of the storage carbohydra...

The manuscript “Uncertainties in model predictions of nitrogen fluxes from agroecosystems in Europe” describes a study in which the propagation of uncertainty in input parameters and coefficients used in the model INTEGRATOR to estimates of fluxes of reactive nitrogen (N2O, NOx, NH3, leaching and runoff of N) is assessed. The authors study both the quantitative overall uncertainty of these Nr f...

We consider classes of T6–orientifolds, where the orientifold projection contains an inversion I9−p on 9 − p coordinates, transverse to a Dp–brane. In absence of fluxes, the massless sector of these models corresponds to diverse forms of N = 4 supergravity, with six bulk vector multiplets coupled to N = 4 Yang–Mills theory on the branes. They all differ in the choice of the duality symmetry cor...

This study reports on the occurrence and behaviour of six pesticides and one metabolite in a small stream draining a vineyard catchment. Base flow and flood events were monitored in order to assess the variability of pesticide concentrations according to the season and to evaluate the role of sampling frequency on the evaluation of fluxes estimates. Results showed that dissolved pesticide conce...

Air shower simulation programs are important tools for estimating distributions of particles of different kinds, and that can be measured experimentally. The region of interest spans many orders of magnitude in primary energy, from atmospheric fluxes measured in balloon–borne experiments up to the highest energy cosmic rays detected at the Auger Observatory, for example. The comparison of obser...

Responses of wetland carbon cycling to environmental changes, particularly changes in water table depth, which are the key determinants to control the ecological and biogeochemical functions of wetlands, are highly non-linear and complex due to the dynamic interactions of several physical and biological processes. Several field experiments have found that wetland productivities have a significa...

In this contribution, we study situations in which nanoparticles in a fluid are strongly heated, generating high heat fluxes. This situation is relevant to experiments in which a fluid is locally heated by using selective absorption of radiation by solid particles. We first study this situation for different types of molecular interactions, using models for gold particles suspended in octane an...

Comparing of different CH4 flux measurement techniques allows for the independent evaluation of the performance and reliability of those techniques. We compared three approaches, the traditional discrete Manual Static Chamber (MSC), Continuous Automated Chamber (CAC) and Eddy Covariance (EC) methods of measuring the CH4 fluxes in an alpine wetland. We found a good agreement among the three meth...

INTRODUCTION: Acetylcarnitine is a necessary intermediate in the mitochondrial oxidation of acetate, since it transports the acetyl moiety across the mitochondrial membrane [1]. It has only been observed using hyperpolarized methods [2,3] or with localized polarization transfer sequences [5]. Glutamate has been used as an indicator of citric acid cycle (TCA) fluxes following [2-C]acetate infusi...