Existence result and conservativeness for a fractional order non-autonomous fragmentation dynamics

We use the subordination principle together with an equivalent norm approach and semigroup perturbation theory to state and set conditions for a non-autonomous fragmentation system to be conservative. The model is generalized with the Caputo fractional order derivative and we assume that the renormalizable generators involved in the perturbation process are in the class of quasi-contractive semigroups, but not in the class G(1; 0) as usually assumed. This, thenceforth, allows the use of admissibility with respect to the involved operators, Hermitian conjugate, Hille- Yosida's condition and the uniform boundedness to show that the operator sum is closable, its closure generates a propagator (evolution system) and, therefore, a C0 semigroup, leading to the existence result and conservativeness of the fractional model. This work brings a contribution that may lead to the full characterization of the in nitesimal generator of a C0 semigroup for fractional non-autonomous fragmentation and coagulation dynamics which remain unsolved.http://www.tjnsa.comam2017Science, Mathematics and Technology Educatio

O cultivo do arroz e a resposta do agrossistema às alterações ambientais de temperatura e dióxido de carbono

A cultivar de arroz Ariete apresentou uma eficiência máxima de uso do N de 64% e uma produção de 8,5 t ha-1, após aplicação de 120 kg N ha-1, metade em fundo e metade ao afilhamento. Os fatores de emissão de GEEs medidos no campo foram de 136 kg CH4 ha-1 e 1,5% para o N2O. As emissões de COVs (especialmente na forma de terpenos) e NH3 foram reduzidas, mas atingiram 8 kg N-NH3 ha-1 dia-1 após a adubação de cobertura.FCT - projeto PTDC/AGR-AAM/102529/2008

Influence of high-dose gamma radiation and particle size on antioxidant properties of Maize ( Zea mays L.) flour

ABSTRACT Influence of high-dose gamma radiation and particle size on antioxidant properties of maize (Zea mays L.) flour was studied using response surface methodology. A central composite design based on three levels of each of particle size, in terms of mesh number (40, 60 and 80 meshes), and gamma radiation dose (25, 50 and 75 kGy) was constructed. A statistically significant dose-dependent decrease (p<0.05) in antioxidant properties of gamma irradiated flour was observed. However, an increase in the mesh number (decrease in particle size of flour) resulted in an increase in antioxidant properties. The optimum level of radiation dose to achieve maximum value of responses was found to be 50 kGy for Trolox equivalent total antioxidant activity (TETAOA), 25 kGy for iron chelating ability (ICA), 25 kGy for reducing power (RP) and 75 kGy for linoleic acid reduction capacity (LARC). However, the optimum level of mesh number to achieve desired levels of TETAOA, ICA, RP and LARC was found to be 80 meshes

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and other compounds of lipid metabolism, and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and other compounds of lipid metabolism, and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and other compounds of lipid metabolism, and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)

Lipidome of leaves of esca-affected grapevine

The dataset presented in this paper comprises the masses of 208 lipid species and other compounds of lipid metabolism, and their levels in leaves of vines with brown wood streaking and grapevine leaf stripe, two symptomatic expressions of Esca complex disease (ESCA)