Turnover tecidual, desempenho e rendimento de carcaça em frangos de corte submetidos a diferentes níveis de metionina digestível

Pós-graduação em Zootecnia - FMVZ

Compostos de paládio(II) contendo ligantes sulfurados: síntese, caracterização e investigação da atividade biológica

This work deals with the synthesis, spectroscopic characterization of mono and polynuclear Pd(II) compounds obtained from the reaction between [PdCl2(MeCN)2] precursor and imidazolidine-2-thione (L1) and benzimidazoline-2-thione (L2). The interaction between [PdCl2(MeCN)2] and imidazolidine-2-thione, in the 1:2 molar ratio, using MeOH as solvent, yielded compound [Pd2Cl4(L1)4]Cl2 (1) whereas the complex [Pd2Br4(L1)4]Br2 (2) was obtained from the reaction between 1 and Br- ions. Binuclear compounds of general formulae [Pd2(L2)4]X23/2 MeOH {X= Cl-(3), Br-(4)} were synthesized using benzimidazoline-2-thione as ligand, employing the same procedure used in the synthesis of 1 and 2, respectively. The new complexes 1-4 are crystalline, air stable and soluble in methanol and dmso. The compounds were characterized by elemental analysis, IR spectroscopy, ESI/MS mass spectrometry and thermogravimetry. Coordination of the ligands L1 and L2 via sulphur atom was evidenced by the shift of the CS band (~499 cm-1, 1 and 2; ~620 cm-1, 3 and 4) to lower frequencies in comparison with those found in the free ligands (510 cm-1, L1; 660 cm-1, L2), indicating the weakening of the CS bom after coordination. ESI/EM mass spectra (positive mode) of the complexes 1-4 allowed atribute the molecular formulae [Pd2X4(L1)4]X2 {X= Cl-(1), Br-(2)} and [Pd2(L2)4]X2 {X= Cl-(3), Br-(4)} by the appearance of the peaks at m/z 794,61 [(1) + MeOH]+, m/z 836,77 [(2) - 2H - L1]+, m/z 810 [(3) - 2Cl]+, m/z 810 [(4) - 2Br]+. The TG-DTA curves showed that the complexes 1 and 2 are thermally stable up to 212 and 169º C, respectively, and further decompose to metallic palladium at 527º C (1, obt. 28,46 %; calcd. 27,88%) and 895º C (2, obt. 22,85 %; calcd. 22,62%). Compounds 3 and 4 exhibited an initial mass loss of ~5% between 25 -146º C related to the release of metanol molecules. The complexes 3...Fujimura Leite.

Técnicas intervencionistas de recuperação ecológica em áreas florestais e influências nas características físicas, químicas e isotópicas dos solos

Pós-graduação em Engenharia Civil e Ambiental - FEB

Efeito túnel multidimensional em reações nucleares

Pós-graduação em Física - IFT

Frangos de corte de produtores do estado de São Paulo: rastreabilidade da alimentação por δ13C e δ15N

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Atributos químicos no solo e produção de Cynodon dactylon cv. Tierra Verde sob doses de biofertilizante orgânico

The concentration of nutrients in plant is related to the soil, fertilization, climate, season, cultivar and cultural practices. Aiming to evaluate the soil chemical properties, the dry matter production of shoots and roots, nutrient content in the plant and the chemical composition of the grass Tierra Verde subjected to levels of organic biofertilizer as nitrogen source, an experiment was conducted in a greenhouse at the Faculty of Veterinary Medicine , UNESP, Araçatuba-SP, January-September 2010. Treatments were arranged in a completely randomized design with six fertilized biofertilizer doses (0, 33, 66, 132, 264, 528 m3 ha-1) and five repetitions for three cuts. We used the model split plot, with doses of biofertilizer considered as main treatments and cuts as sub-plots. We obtained a linear response in the production of dry mass of shoots and roots to the dose of 528 m3 ha-1 of organic biofertilizer. Nitrogen fertilization influenced the soil chemical properties and levels of organic matter, sulfur, boron and manganese, and in foliar levels of phosphorus, potassium and copper. The chemical composition was not altered by the influence of organic biofertilizer doses applied to the soil.

Níveis de carboidratos e lipídios em dietas para juvenis de tambaqui (Colossoma macropomum): variáveis produtivas, fisiológicas e turnover isotópico

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

Desgaste e encruamento nos aços Hadfield

O aço austenítico manganês, descoberto inicialmente por Robert Hadfield, em 1882, conhecido atualmente como aço Hadfield, continha em sua configuração inicial 12% de manganês e 1,2% de carbono. Apresentando grande resistência ao desgaste, provavelmente o maior na categoria de aciaria, ganhou rápida aceitação no mercado, sendo então propostas várias alterações em sua composição, como a introdução de vários elementos de liga, como o vanádio, molibdênio, titânio, enxofre, fósforo, cromo, níquel, entre outros. Este trabalho investigou a influência dos elementos de liga na resistência ao desgaste e no encruamento sofrido por esse material, em quatro composições que se diferenciam nos elementos de liga e em suas porcentagens. A resposta foi uma grande resistência ao desgaste da liga contendo titânio, entretanto esta não apresentou a maior profundidade de camada encruada.

Análise isotópica do gás carbônico de espumantes comercializados no Brasil

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Avaliação do estado nutricional de mudas de Gonçalo Alves (Astronium Fraxinifolium)

The planting of seedlings, the establishment and maintenance of the natural regeneration process, or the combination thereof, are methods used in the recovery of degraded or disturbed environments, however, often require the addition of soil conditioners. This study aimed to evaluate the influence of conditioners, introduced in degraded soil on growth and nutritional status of Astronium fraxinifolium seedlings. To conduct the experimentation were used as degraded soil conditioner, ash from sugarcane bagasse (CZ) and macrophytes (MC), at the doses of 0, 15, 30 and 45 t ha-1 and 0, 16 and 32 t ha-1 respectively, which combined produced 12 treatments, with three replications, and for field installation, was used the experimental randomized block design. Astronium fraxinifolium (Gonçalo Alves) seedlings, native tree species in cerrado, were introduced in the experimental area and, after 12 months, were evaluated for leaf concentration of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, copper, iron, manganese and zinc (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn, respectively). Seedlings and adult plants of A. fraxinifolium were collected in preserved cerrado reserve were also analyzed for nutrients foliar concentration to perform a comparative analysis. The leaves collection in the preserved cerrado and experimental area, was accompanied by soil sampling (0.0 - 0,20 m deep), which was analyzed for phosphorus, OM (organic matter), pH, K, Ca, Mg, Al+H (potential acidity), Al (aluminum), Cu, Fe, Mn and Zn. The results show that the applied residues contributed to raise the foliar concentration of Cu and Fe. The foliar concentration of nutrients was higher in A. fraxinifolium seedlings from preserved cerrado, except for B, which was similar between areas, besides Cu and Fe with higher levels in the seedlings from experimental area. The combined addition of residues (MC and CZ), led to increase the plants height and diameter. This...

Cinética do 15N em frangos de corte

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Compostos de paládio(II) contendo ligantes N,S-quelantes: síntese, caracterização e investigação da atividade biológica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise da fragilidade natural do sítio urbano de Piracicaba (SP)

This research aims to analyze the natural fragility of Piracicaba Urban Site, through the analysis of a letter of Fragility Potential obtained through the data crossing the geomorphological cards, Pedologic Slope and use and occupation of the land to be developed during the project. The methodology to be used is that proposed by Ross (1990, 1994) together with the guided ideas Anthropogenic geomorphology, so that the man-made conditions of modification of the relief can be inserted in the final analyzes. The results showed that the Córrego do Enxofre Basin has high fragility of values, it is not a rich area for human occupation

Monitoramento da composição isotópica e físico-química da água de chuva no município de Rio Claro (SP)

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

Turnover do δ¹³C na substituição de dietas com ingredientes de diferentes ciclos fotossintéticos em ovos de codornas japonesas (Coturnix coturnix japonica)

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