1,125 research outputs found

    Hartree-Fock-Bogoliubov theory versus local-density approximation for superfluid trapped fermionic atoms

    Full text link
    We investigate a gas of superfluid fermionic atoms trapped in two hyperfine states by a spherical harmonic potential. We propose a new regularization method to remove the ultraviolet divergence in the Hartree-Fock-Bogoliubov equations caused by the use of a zero-range atom-atom interaction. Compared with a method used in the literature, our method is simpler and has improved convergence properties. Then we compare Hartree-Fock-Bogoliubov calculations with the semiclassical local-density approximation. We observe that for systems containing a small number of atoms shell effects, which cannot be reproduced by the semiclassical calculation, are very important. For systems with a large number of atoms at zero temperature the two calculations are in quite good agreement, which, however, is deteriorated at non-zero temperature, especially near the critical temperature. In this case the different behavior can be explained within the Ginzburg-Landau theory.Comment: 12 pages, 8 figures, revtex; v2: references and clarifying remarks adde

    Production cost and profitability of soybean seeds enriched with molybdenum

    Get PDF
    The search for new technologies that reduce costs to produce seeds is very important. This study aimed to analyze the economic viability of producing soybean seeds enriched with molybdenum. The BRS Valiosa RR cultivar was used and four molybdenum doses (0 g ha-1, 200 g ha-1, 400 g ha-1 and 800 g ha-1) were applied on leaves as it follows: half in the R3 and half in the R5-4 development stages. The total operating cost, gross revenue, operating profit, profitability index, break-even yield and break-even price were estimated. The results showed that the molybdenum foliar application is an economically viable way of producing molybdenum-enriched soybean seeds

    Agronomic biofortification of cowpea with selenium: effects of selenate and selenite applications on selenium and phytate concentrations in seeds

    Get PDF
    BACKGROUNDSelenium (Se) is a nutrient for animals and humans, and is considered beneficial to higher plants. Selenium concentrations are low in most soils, which can result in a lack of Se in plants, and consequently in human diets. Phytic acid (PA) is the main storage form of phosphorus in seeds, and it is able to form insoluble complexes with essential minerals in the monogastric gut. This study aimed to establish optimal levels of Se application to cowpea, with the aim of increasing Se concentrations. The efficiency of agronomic biofortification was evaluated by the application of seven levels of Se (0, 2.5, 5, 10, 20, 40, and 60 g ha−1) from two sources (selenate and selenite) to the soil under field conditions in 2016 and 2017.RESULTSApplication of Se as selenate led to greater plant Se concentrations than application as selenite in both leaves and grains. Assuming human cowpea consumption of 54.2 g day−1, Se application of 20 g ha−1 in 2016 or 10 g ha−1 in 2017 as selenate would have provided a suitable daily intake of Se (between 20 and 55 μg day−1) for humans. Phytic acid showed no direct response to Se application.CONCLUSIONSelenate provides greater phytoavailability than selenite. The application of 10 g Se ha−1 of selenate to cowpea plants could provide sufficient seed Se to increase daily human intake by 13–14 μg d−1. © 2019 Society of Chemical Industr

    Avaliação do perfil de consumidores de whey protein na cidade de Rio Verde-GO

    Get PDF
    O objetivo deste estudo foi observar a principal fonte de indicação do Whey Protein (WP), prevalência de consume, associação com exercícios físicos, características nutricionais e objetivos de uso em praticantes de treinamento de força (TF). A pesquisa foi conduzida por meio de questionário, coletado na plataforma Google Forms, disponibilizada por meio de mídia social. Na pesquisa, participaram 106 voluntários praticantes de TF que consomem WP. O questionário aplicado foi dividido em três estágios relacionados ao perfil dos voluntários, questões acerca da prática do TF e consume do WP. Os resultados demonstraram que a maioria dos entrevistados praticam TF de 4-5 vezes semanais por 1 hora, com principal objetivo de ganho de massa muscular. Acerca do uso de WP, a maioria utiliza o concentrado apenas nos dias de treino com intuit de aumentar o consume protéico diário, mas eles não possuem conhecimento sobre a real necessidade e não sabem diferenciar os tipos de WP existentes no mercado. Para indicação de consumo, a maioria reportou já ter se consultado com nutricionista. Os praticantes de TF que utilizam o WP buscam ganhar massa muscular através do aumento do consumo diário de proteína, embora a maioria não saiba a quantidade necessária. Apesar da maioria dos entrevistados já ter consultado um nutricionista, pôde-se observar um consumo sem respaldo científico. Os praticantes de TF consomem WP apenas em dias de treino, ingerem doses superiores ao necessário e não sabem diferenciar os tipos de proteínas

    Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data

    Get PDF
    Peer reviewe

    Search for heavy gauge W ' bosons in events with an energetic lepton and large missing transverse momentum at root s=13TeV

    Get PDF
    Peer reviewe

    Search for top squark pair production in pp collisions at root s=13 TeV using single lepton events

    Get PDF
    Peer reviewe

    Search for massive resonances decaying in to WW,WZ or ZZ bosons in proton-proton collisions at root s=13 TeV

    Get PDF
    Peer reviewe
    corecore