Conservative Biological Control
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Papel da biodiversidade no manejo da traça-do-tomateiro Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)
A diversificação ambiental promovida pelas espécies vegetais em agroecossistemas favorecem a estruturação de comunidades de insetos mais ricas e diversificadas que controlam a dinâmica populacional de espécies herbívoras. Dentro da abordagem agroecológica, a diversificação ambiental é um dos componentes que podem ser manejados para suprimir as po
Publicado em: 2007
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2. Influência da configuração do preparo cavitário na resistência à fratura e adaptação marginal de restaurações indiretas em cerômero
The aim of this study was to evaluate the influence of cavity preparation design on marginal adaptation and fracture resistance of indirect ceromer restorations. Ninety human mandibular molars with similar dimensions were divided into 9 groups. The teeth roots were embedded in a polystyrene resin reproducing the periodontal ligament. The control group had on
Publicado em: 2004
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3. A site-specific, conservative recombination system carried by bacteriophage P1. Mapping the recombinase gene cin and the cross-over sites cix for the inversion of the C segment.
The bacteriophage P1 genome carries an invertible C segment consisting of 3-kb unique sequences flanked by 0.6-kb inverted repeats. With insertion and deletion mutants of P1 derivatives the site-specific recombinase gene cin for C inversion) has been mapped adjacent to the C segment and the cix sites (for C inversion cross-over) have been located at the outs
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4. Opening protein pores with chaotropes enhances Fe reduction and chelation of Fe from the ferritin biomineral
Iron is concentrated in ferritin, a spherical protein with a capacious cavity for ferric nanominerals of <4,500 Fe atoms. Global ferritin structure is very stable, resisting 6 M urea and heat (85°C) at neutral pH. Eight pores, each formed by six helices from 3 of the 24 polypeptide subunits, restrict mineral access to reductant, protons, or chelators. Prote
The National Academy of Sciences.
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5. Mortality of a cohort of tin miners 1941-86.
The mortality patterns of United Kingdom tin miners were examined in relation to calendar period and duration of underground work with particular attention to lung cancer and exposure to radon. Subjects were all men who had worked for at least one year between 1941 and 1984 at one of two United Kingdom tin mines and for whom a complete work history could be