The extended minimal geometric deformation of SU(NN) dark glueball condensates

The extended minimal geometric deformation (EMGD) procedure, in the holographic membrane paradigm, is employed to model stellar distributions that arise upon self-interacting scalar glueball dark matter condensation. Such scalar glueballs are SU($N$) Yang-Mills hidden sectors beyond the Standard Model. Then, corrections to the gravitational wave radiation, emitted by SU($N$) EMGD dark glueball stars mergers, are derived, and their respective spectra are studied in the EMGD framework, due to a phenomenological brane tension with finite value. The bulk Weyl fluid that drives the EMGD is then proposed to be experimentally detected by enhanced windows at the eLISA and LIGO.Comment: 9 pages, 7 figure

Extended quantum portrait of MGD black holes and information entropy

The extended minimal geometric deformation (EMGD) is employed on the fluid membrane paradigm, to describe compact stellar objects as Bose--Einstein condensates (BEC) consisting of gravitons. The black hole quantum portrait, besides deriving a preciser phenomenological bound for the fluid brane tension, is then scrutinized from the point of view of the configurational entropy. It yields a range for the critical density of the EMGD BEC, whose configurational entropy has global minima suggesting the configurational stability of the EMGD BEC.Comment: 9 pages, 7 figures, matches the published versio

Nonequilibrium scaling explorations on a 2D Z(5)-symmetric model

We have investigated the dynamic critical behavior of the two-dimensional Z(5)-symmetric spin model by using short-time Monte Carlo (MC) simulations. We have obtained estimates of some critical points in its rich phase diagram and included, among the usual critical lines the study of first-order (weak) transition by looking into the order-disorder phase transition. Besides, we also investigated the soft-disorder phase transition by considering empiric methods. A study of the behavior of $\beta /\nu z$ along the self-dual critical line has been performed and special attention has been devoted to the critical bifurcation point, or FZ (Fateev-Zamolodchikov) point. Firstly, by using a refinement method and taking into account simulations out-of-equilibrium, we were able to localize parameters of this point. In a second part of our study, we turned our attention to the behavior of the model at the early stage of its time evolution in order to find the dynamic critical exponent z as well as the static critical exponents $\beta$ and $$ of the FZ-point on square lattices. The values of the static critical exponents and parameters are in good agreement with the exact results, and the dynamic critical exponent $z\approx 2.28$ very close of the 4-state Potts model ($z\approx 2.29$).Comment: 11 pages, 7 figure

Ten Years Later: a Comparison between the Results of Early Simulation Scenarios and the Sustainability of a Small-Scale Agro-Industry Development Program

Agro-industrialization promotion is a policy option to aggregate value to a primary product and increase revenues for small farmers. However, experience has shown the vulnerability of small-scale agro-industries (SSAI) when facing a competitive environment with technological, institutional and managerial bottlenecks. A system dynamics model was built to simulate the financial behavior of agrifood processing enterprises promoted by Brazilian SSAI development programs after the mid 1990’s. Ten years after the modeling exercise, an assessment of selected enterprises supported by distinct programs largely confirmed the simulation results. Modelling suggested conditions for long-term SSAI sustainability were corroborated and the importance of the promotion programs was further evidenced

Ten Years later: A Comparison of Results of Simulation Scenarios under a Systems Dynamic Approach and the Actual Economic Performance of Small-Scale Agro-industries Supported by Brazilian Agro-industrial Development Programs

Agro-industrialization promotion is a policy option to aggregate value to a primary product and increase revenues for small farmers. However, experience has shown the vulnerability of small-scale agro-industries (SSAI) when facing a competitive environment under the constraints of several technological, institutional and managerial bottlenecks. A system dynamics model was built to simulate the financial performance of agrifood processing enterprises promoted by Brazilian SSAI development programs after the mid 1990s. Under different optimistic, conservative and pessimistic hypotheses related to SSAI operations and their business environment, model simulations allowed the identification of conditions for long-term financial sustainability. Ten years after the modeling exercise, the results of this analysis could be confirmed through a comparative assessment of the financial performance of selected enterprises supported by two of the promotion programs. The results of the original SD model could be mostly corroborated by the comparison between simulations and the observed enterprise performance. The relatively high SSAI survival rate over the ten-year period analyzed suggests the strong potential of these programs for agribusiness development promotion

Teor e acúmulo de nutrientes por plantas de feijão caupi em função do fósforo e da saturação por bases.

O feijão caupi (Vigna unguiculata L., Walp) é utilizado como uma das principais fontes proteicas da população rural na região Amazônica e da região Nordeste. O crescimento, a produtividade e o estado nutricional do feijão caupi são afetados por um grande número de fatores, destacando-se a acidez do solo e baixa disponibilidade de fósforo (P). Por outro lado, há escassez de informações sobre a nutrição mineral do feijão caupi, em relação a teores e acúmulos foliares e nos grãos. Neste contexto, o objetivo do trabalho foi avaliar o efeito da saturação por bases e da adubação fosfatada sobre os teores e acúmulos de macro e micronutrientes, na massa seca da parte aérea e nos grãos de feijão caupi. O delineamento experimental foi de blocos casualizados, em esquema fatorial 4 x 2, sendo quatro doses de P (0, 25, 50 e 100 kg ha-1 de P2O5) e duassaturações por bases (50 e 60%), com oito repetições. Os teores e acúmulos de macronutrientes do feijão caupi foram influenciados pelas doses de P e pela saturação por bases. Os maiores teores e acúmulos, de uma maneira geral, ocorreram na saturação por base de 60%. A planta de feijão caupi acumulou macronutrientes na seguinte ordem: N>K>Ca>Mg>P, enquanto os micronutrientes seguiram a ordem Fe>B>Mn>Zn>Cu. O N e o P são os nutrientes exportados em maior quantidade pelos grãos, em relação à quantidade acumulada na matéria seca da parte aérea

Soil nutrient amendment with leaves of varying quality.

Study on the impact of nitrogen and phosphorus fertilization combined with litter amendment on the microbial biomass ofa xanthic Ferralso. (0cm-5cm and 10cm-20cm). First peliminary results after 18 days of incubation showed that soil amended with P tended to have higher microbial C than soils fertilized with N or the control. This result indicates that nitrogen is probably not limiting microbial biomass growth the most , but rather P.bitstream/item/181049/1/ID-2600-2-58.pd

Levantamento da ocorrência do Moko da bananeira em Rondônia: primeira atualização

Este trabalho visa fazer uma atualização dos dados de ocorrência da doença, Moko-da-Bananeira, considerando as análises feitas entre julho de 2007 e junho de 2010.bitstream/item/46857/1/cot361-mokodobananeira.pd