Annona emarginata (Schltdl.) H. Rainer 'araticum-de-terra-fria' cultivada com variação de nitrogênio: produtividade e perfil químico dos voláteis foliares

Pós-graduação em Agronomia (Horticultura) - FCA

Estudo da diversidade microbiana e níveis de endotoxinas em lesões endo-periodontais

Pós-graduação em Odontologia Restauradora - ICT

Estudo do potencial de degradação do herbicida diuron e seus metabólitos por bactérias isoladas de solo de canavial

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Produtividade em espécies de Drosophila do subgrupo saltans (grupo saltans, subgênero Sophophora): efeitos da infecção por Wolbachia em linhagens normais e introgredidas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fatores de virulência e infecção epitelial in vitro de biofilmes simples e mistos de Cndida albicans, Staphylococcus aureus sensível (MSSA) e resistente à meticilina (MRSA)

Pós-graduação em Reabilitação Oral - FOAR

Atributos microbiológicos do solo em sistemas de manejo de longa duração

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Biocontrole de nematoides com fungos

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Resposta da terceira soqueira da cana-de-açúcar à aplicação de nitrogênio na presença e ausência de silício

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Diagnóstico sorológico e molecular de agentes transmitidos por artrópodes em aves carnívoras

Pós-graduação em Medicina Veterinária - FCAV

Solubilización de fuentes de fósforo asociadas a un compuesto orgánico enriquecido con biofertilizantes

The enrichment of an organic compound with biofertilizers of microorganisms (solubilizing phosphorus bacteria, BSF) can improve the properties of phosphate fertilizers applied to soils to increase nutrient availability. The experimental design was randomized complete blocks with a factorial 4x2 +1 arrangement of treatments: 1) four sources of phosphorus: phosphate rock, natural phosphate, triple superphosphate (TSP) and Cuban phosphate rock; 2) two sources of bio-fertilizer prepared from filter cake (cane waste) enriched with microorganisms and no enrichment; 3) and an absolute control (no filter cake or fertilizer); repeated three times. Data was analyzed with ANOVA and treatment means were compared using Tukey (p <= 0.05). Assessments of available P (Bray-2 and Oniani methodology) and the quantification of total and solubilizing bacteria and fungi in the soil were performed 30, 60 and 90 d after starting the experiment. After 60 d, the population of BSF was lower in the control (p <= 0.05) and the content of P (Bray-2) was higher for SFT (p <= 0.01). The application of the bio-fertilizer increased the P content compared to the control. At 90 d P (Bray-2) increased with the SFT treatment, which also increased (p P in the soil at 60 and 90 d regardless of the presence of microorganism-enriched bio-fertilizer. The use of filter cake enriched with microorganisms associated with different sources of P, and applied to the soil with a high content of P, did not change the soil populations of total and solubilizing bacteria and fungi in the short term. TSP promoted the highest levels of P in the soil, irrespective of the presence of the organic compound enriched with P solubilizing microorganisms.

Análise estrutural de aerogéis via espalhamento de luz a baixo ângulo

The sol-gel process is a method for obtaining vitreous or vitro-ceramic materials which, are prepared a sol and by drying the liquid phase. This technique has been used extensively for the preparation of glassy gels, films, fibers and particles from the hydrolysis and polycondensation reactions of metal alkoxides. The usual methods for drying are: evaporation drying (xerogels), freeze drying (criogéis) and via supercritical CO2 extraction (aerogels). In the present work, we studied the preparation of silica gels by the sol-gel process from the hydrolysis of alkoxides tetraethylorthosilicate (TEOS) and 3-glycidoxypropyltrimethoxysilane (GPTS). The hydrolysis was promoted from GPTS and TEOS in proportion (4: 1) under acidic conditions. The hydrolysis reaction was promoted inside a Becker at room temperature. After hydrolyses the prepared sol had pH 2, and kept under mechanical agitation for a period of 1 hour. In order to accelerate the polycondensation reaction, the pH was corrected to a value near 5 by slowly adding NH4OH. Then the sols were leaked in sealed polycarbonate containers and maintained for 20 days at 40°C for gelation. Silica aerogels were prepared via supercritical CO2 extraction of the wet gel at temperature and pressure higher than 31°C and 74 atm, in an autoclave specially developed for the process. The structural characteristics were studied in the dry gel (aerogel). Aerogels were then characterized by nitrogen adsorption and small angle light scattering. The nitrogen adsorption data were analyzed for the determination of the BET specific surface (SBET), the total pore volume Vp, the pore mean size (lP=4Vp/SBET), the particle mean size (lS) and the pore size distribution (PSD). And the data from small angle light scattering were analyzed to determine the correlation function (γ'), the area per unit volume (S/V), average pore size (l ) and the average particle size...

Desempenho agronômico do milho e do trigo em função da inoculação com azospirillum brasilense e doses e fontes de nitrogênio

Pós-graduação em Agronomia - FEIS

Injeção de ar via irrigação por gotejamentos superficial e subsuperficial na cultura da alface

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Ciclagem do nitrogênio relacionada ao sistema de produção

Pós-graduação em Agronomia (Agricultura) - FCA

Transformações da matéria orgânica em latossolo vermelho tratado com esterco bovino

Pós-graduação em Agronomia (Ciência do Solo) - FCAV