Insetos-praga associados à cultura do milho em Sergipe.

bitstream/CPATC-2010/20652/1/ct-56.pd

Counterions at charge-modulated substrates

We consider counterions in the presence of a single planar surface with a spatially inhomogeneous charge distribution using Monte-Carlo simulations and strong-coupling theory. For high surface charges, multivalent counterions, or pronounced substrate charge modulation the counterions are laterally correlated with the surface charges and their density profile deviates strongly from the limit of a smeared-out substrate charge distribution, in particular exhibiting a much increased laterally averaged density at the surface.Comment: 7 page

Ocorrência, danos e alternativas de controle da mosca-branca, Aleurothrixus aepim (Goeldi, 1886) na cultura da mandioca em Sergipe.

bitstream/CPATC-2009-09/20524/1/ct-42.pd

Universal reduction of pressure between charged surfaces by long-wavelength surface charge modulation

We predict theoretically that long-wavelength surface charge modulations universally reduce the pressure between the charged surfaces with counterions compared with the case of uniformly charged surfaces with the same average surface charge density. The physical origin of this effect is the fact that surface charge modulations always lead to enhanced counterion localization near the surfaces, and hence, fewer charges at the midplane. We confirm the last prediction with Monte Carlo simulations.Comment: 8 pages 1 figure, Europhys. Lett., in pres

Avaliação de genótipos de coqueiro, Cocos nucifera (L.) quanto à infestação da falsa barata, coraliomela brunnea Thunberg (1821) (Coleoptera: Chrysomelidae) no estado de Sergipe.

bitstream/CPATC-2009-09/20525/1/ct-43.pd

Canalizing Kauffman networks: non-ergodicity and its effect on their critical behavior

Boolean Networks have been used to study numerous phenomena, including gene regulation, neural networks, social interactions, and biological evolution. Here, we propose a general method for determining the critical behavior of Boolean systems built from arbitrary ensembles of Boolean functions. In particular, we solve the critical condition for systems of units operating according to canalizing functions and present strong numerical evidence that our approach correctly predicts the phase transition from order to chaos in such systems.Comment: to be published in PR

Obtenção de adultos e aspectos biológicos da broca-do-mamoeiro, Pseudopiazurus obesus (GOHEMAN, 1838) (Coleoptera: Curculionidade).

bitstream/CPATC/19910/1/bp-32.pd

Atratividade dos compostos feromonais na captura da broca-do-mamoeiro Pseudopiazurus obesus (Boheman, 1838) (Coleoptera: Curculionidae) em condições de campo.

bitstream/CPATC/19909/1/bp-31.pd

Manejo e controle das principais pragas da cultura do arroz irrigado na região do baixo São Francisco.

bitstream/item/64533/1/CPATC-DOCUMENTOS-70-MANEJO-E-CONTROLE-DAS-PRINCIPAIS-PRAGAS-DA-CULTURA-DO-ARROZ-IRRIGADO-NA-REGIA.pd