943 resultados para Q. rotundifolia


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The properties and cosmological importance of a class of non-topological solitons, Q-balls, are studied. Aspects of Q-ball solutions and Q-ball cosmology discussed in the literature are reviewed. Q-balls are particularly considered in the Minimal Supersymmetric Standard Model with supersymmetry broken by a hidden sector mechanism mediated by either gravity or gauge interactions. Q-ball profiles, charge-energy relations and evaporation rates for realistic Q-ball profiles are calculated for general polynomial potentials and for the gravity mediated scenario. In all of the cases, the evaporation rates are found to increase with decreasing charge. Q-ball collisions are studied by numerical means in the two supersymmetry breaking scenarios. It is noted that the collision processes can be divided into three types: fusion, charge transfer and elastic scattering. Cross-sections are calculated for the different types of processes in the different scenarios. The formation of Q-balls from the fragmentation of the Aflieck-Dine -condensate is studied by numerical and analytical means. The charge distribution is found to depend strongly on the initial energy-charge ratio of the condensate. The final state is typically noted to consist of Q- and anti-Q-balls in a state of maximum entropy. By studying the relaxation of excited Q-balls the rate at which excess energy can be emitted is calculated in the gravity mediated scenario. The Q-ball is also found to withstand excess energy well without significant charge loss. The possible cosmological consequences of these Q-ball properties are discussed.

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Ce ms. a été donné en 1734 au chapitre de Notre-Dame de Paris par le chanoine Gagne de Périgny: "Ex dono Domini Gagne de Perigny canonici Parisiensis anno 1734" (f. 1). L'ex-libris "A l'église de Paris" (XIXe s.) figure au f. 1, suivi de la cote M9. Notre-Dame.

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O objectivo deste artigo é o de apresentar uma descrição das interrogativas-Q em Crioulo de Cabo Verde (CCV – variedade de Santiago). Mostrar-se-ão as estratégias de formação de interrogativas-Q que a língua disponibiliza, tentando avaliar o impacto da escolha de uma em detrimento de outra. A questão central deste artigo é saber se o processo de formação de interrogativas-Q em CCV envolve ou não movimento-Q, i.e., saber se numa dada posição sintáctica há Merge de uma palavra/sintagma-Q e se depois ele é movido por Attract para SpecCP para verificar, através de uma relação de Agree, os traços formais de Cº.

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An 4 page report about what happens to your IPERS during furloughs.

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The new law makes the following changes: (a) Reduces IPERS benefits not yet earned by regular members and raises contributions for them above the rate set in current law. (b) Raises the limit on how much contributions for regular members can change each year from 0.5 percentage point to 1.0 percentage point. (c) Extends a provision for restoring wage credits for mandatory unpaid time and extends it to union bumping. Other changes are limited in scope and will not affect most members; some changes are merely technical.