On the mutual effect of ion temperature gradient instabilities and impurity peaking in the reversed field pinch

The presence of impurities is considered in gyrokinetic calculations of ion temperature gradient (ITG) instabilities and turbulence in the reversed field pinch device RFX-mod. This device usually exhibits hollow Carbon/Oxygen profiles, peaked in the outer core region. We describe the role of the impurities in ITG mode destabilization, and analyze whether ITG turbulence is compatible with their experimental gradients.Comment: 19 pages, 9 figures, accepted for publication in Plasma Phys. Control. Fusio

Produção inicial de frutos num plantio de açaí em Porto Velho, Rondônia.

O objetivo deste estudo foi avaliar a produção inicial de frutos entre de um plantio de açaí BRS Pará em Rondônia

Biometria de frutos em um plantio de açaí em Porto Velho, Rondônia.

O objetivo deste trabalho foi realizar a biometria de frutos em um plantio de açaí em Porto Velho, Rondônia

Assessing antimicrobial potential of agroindustrial byproducts' extracts produced through solid state fermentation in marine fish

[Excerpt] Sustainability is definitely the 21st century word. The future global food provision is dependent on fish and on sustainable expansion of aquaculture production. For that, alternative nutritional strategies for aquaculture disease management are required, reducing the use of synthetic drugs. Agroindustrial byproducts(brewery, winery and olive oil industry) constitute a circular and ecofriendly potential source of add-value bioactive compounds. Solid state fermentation(SSF) is a biotechnological low cost process that may be applied to these byproducts to effectively increase bioavailability of their bioactive compounds and so their antimicrobial potential against fish pathogens. The aim of this study was to evaluate antibacterial properties of agroindustry(beer, wine and oil processing industries) byproducts' extracts produced through SSF with Aspergillus ibericus. [...]SPO3(ref.POCI-01-0145-FEDER-030377;FCT) & InovFeed(ref. MAR-02.01.01-FEAMP0111;Mar2020)info:eu-repo/semantics/publishedVersio

Periodic boundary conditions on the pseudosphere

We provide a framework to build periodic boundary conditions on the pseudosphere (or hyperbolic plane), the infinite two-dimensional Riemannian space of constant negative curvature. Starting from the common case of periodic boundary conditions in the Euclidean plane, we introduce all the needed mathematical notions and sketch a classification of periodic boundary conditions on the hyperbolic plane. We stress the possible applications in statistical mechanics for studying the bulk behavior of physical systems and we illustrate how to implement such periodic boundary conditions in two examples, the dynamics of particles on the pseudosphere and the study of classical spins on hyperbolic lattices.Comment: 30 pages, minor corrections, accepted to J. Phys.