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Síntese assimétrica dos componentes do feromônio sexual da lagarta-parda, Thyrinteina arnobia (Lepidoptera: Geometridae)
(Universidade Federal de São Carlos, 2013-01-31) Paiva, Marcelo Montanha de; Corrêa, Arlene Gonçalves; https://lattes.cnpq.br/7425467156776144; https://lattes.cnpq.br/5793954287313897
The pheromones play an important role in chemical communication between alive organisms. They can be used in agriculture to pest control. The brown-caterpillar, Thyrinteina arnobia, is considered in Brazil a major pest of Eucalyptus species. The damage is caused by tree defoliation due to the attack of caterpillars. In this work the asymmetric synthesis of four stereoisomers of 3,4-epoxy-6,9-eneicosadiene, sex pheromone component of T. arnobia, was accomplished in 11 steps with an overall yield of 16 to 20%. The key step of the synthetic route involved the Sharpless asymmetric epoxidation of Z- and E-2-penten-1-ol which delivered the corresponding epoxyalcohols in 70-76% yield and 80-90% ee. Electroantennographic analysis (EAG) as well as behavioural studies in laboratory and field will be conducted to evaluate the action of these compounds in insects and possible application in monitoring and pest control.
Desenvolvimento e implementação de uma política de desbaste
(Universidade Federal de São Carlos, 2013-01-31) Veroneze, Caroline Candido; Amaral, Roniberto Morato do; https://lattes.cnpq.br/6958372164719600; https://lattes.cnpq.br/8360321229283971
If libraries refuse to provide adequate information to community needs, they probably will compromise its existence as a social organization, a situation comparable to that of bookshelves crammed with books, but without the desired content. The aim of this study was to develop a system for developing and implementing a policy of weeding. The research methods used were a literature search and document analysis, data were collected, concepts and theories of Collection Development Process, and collection activities: selection, acquisition, evaluation, conservation and weeding. As a result the proposal was prepared for the systematic development and implementation of a policy of weeding in university libraries, which comprises a set of activities and tools. We conclude that the result reached may contribute to the literature in the area of Collection Development Process, especially for weeding activity, initiating further discussions on the subject and helping information workers to perform weeding activities in university libraries, more rational and appropriate informational demands and resources in your community.