Nanocompósito de polpa de mamão e nanopartículas de quitosana para aplicação em embalagens

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

Efeitos da fosfatagem em pré-plantio nas condições químicas do solo e no desenvolvimento da cultura da cana-de-açúcar

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Caracterizaçãode biofilme àbase de zeína e ácido oléico adicionado de nanocarbonato

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Development of hydrophilic nanocarriers for the charged form of the local anesthetic articaine

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

Release of Cyanopyridine from a Ruthenium Complex Adsorbed on Gold: Surface-Enhanced Raman Scattering, Electrochemistry, and Density Functional Theory Analyses

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

Growth and nodulation of cowpea after 5 years of consecutive composted tannery sludge amendment

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atributos químicos do solo, reservas orgânicas e sistema radicular de pastos degradados associada à introdução de leguminosa

The aim was to study the recovery of degraded pasture with the introduction of Stylosanthes macrocephala e capitata cv. Campo Grande on Brachiaria decumbens cv. Basilisk evaluating the levels N-total in roots, biomass, area, and length, diameter and root levels of macro and micronutrients in the soil. The experiment was conducted in the municipality of Andradina, Sao Paulo State, Brazil. The experimental design was a randomized block design in a split-plot (with and without phosphorus), with four replicates, forming the following treatments: control Brachiaria decumbens (CB), partial desiccation with 1.5 L ha(-1) of glyphosate (DP), total desiccation with 3.0 L ha(-1) of glyphosate (TD); tillage (T), soil scarification (S); harrowing rome (H) and plowing + disking (PD). Treatments H and PD were sown by broadcasting and the other in the form of direct seeding. Recovery strategies of grazing signal grass showed significant differences between treatments only for the content of N-total, there were no differences in geometric characteristics of roots and root biomass. The contents of macro and micronutrients in the soil showed no significant differences between the strategies of recovery. Fertilization had a significant effect for P. The introduction of estilosantes Campo Grande accompanied by techniques such as drying and plowing + disking contributed to increases in the N-total levels in the root system. Forms of introduction of legumes did not change the soil chemical properties.

MINERAL NITROGEN SUBSTITUTION BY CHICKEN LITTER IN SUCCESSION OAT/CORN

The constant search for sustainability of production systems have driven research to find alternatives to the problems arising from the intensified use such systems. In this context the present work aimed study the effects of substitution of mineral nitrogen by chicken litter in oat and corn crop in succession and the chemical characteristics of soil. The study was conducted during the period May 2009 to March 2010 in area of Oxisol. The design was of randomized block with four replications. The six treatments were obtained by a combination of different amounts of chicken litter (0, 1500, 3000, 4500, 6000 and 7500 kg ha(-1)) applied 30 days before the sowing of oats combined with the mineral nitrogen applied in coverage in corn (311.1, 257.8, 202.2, 148.9, 95.6, 42.2 kg ha(-1) of urea), for the total supply of 140 kg ha(-1) of nitrogen (N). The application of poultry litter in oat promotes increased the production of dry matter, and content and accumulation of N. The mineral nitrogen substitution by chicken litter increases the yield of corn crop. The use of poultry litter alters the chemical properties of soil, increasing the levels of organic matter, exchangeable Al and acidity potential. However lowers the pH, K, Ca, Mg, sum of bases and base saturation.

Considerações sobre a presença e características do tema água nas Propostas Curriculares para o ensino de Química/2009, do Estado de São Paulo

This study sought to raise the water issue is addressed in the teaching of chemistry in public schools through the notebooks Curricular Proposal of the State of Sao Paulo. First we tried to do a survey of knowledge related to construction of the concept of historical perspective, the physical and chemical properties, their importance to man and the particulars of the national curriculum for this subject. The methodology used was qualitative, descriptive and documentary. We analyzed the books for the first, second and third marking periods and the three series (the 4th book had not yet been distributed). As expected the first scenario, the proposed curriculum addresses the topic in greater depth in only one of the notebooks of the second year of high school. The approaches are no longer linked to health issues and the environment, cross-cutting issues considered by the NCP and important for students to make associations between the chemical content and their daily lives. We conclude that the contract should be evaluated by teachers and that their use should be involved in drawing up a plan that takes into account the aspects that seem incomplete. We also emphasize that although the proposal is interesting from the standpoint of teaching, teachers need training to its full use in the classroom

Estudo comparativo de fornecedores de piche

This present study aimed at developing a methodology for analyzing on the feasibility of a new supplier of raw materials, industrial of aluminum production technology Soederberg. This raw material is pitch, which will be used in the manufacture of anodes for the electrolytic pot. The supplier to be analyzed is the Chemcoal of Ukrainian origin. Thereby developing techniques for a complete analysis, targeting the physical and chemical properties of pitch, economic feasibility and potential impacts on the client, potroom where these impacts may affect the production of aluminum, skimming factor, bubble noise, plasticity top anode and the anode consumption. After planning the test that was conducted on two strategies to generate greater traceability of impacts, data were collected and then it was made a statistical treatment of the data using statistical tools to generate the minitab greater reliability of results

Fibras naturais: características químicas e potenciais aplicações

This study has as objective determining the chemical properties that serve as the basis for potential scientific and technological applications of seven species of fibrous plants cultivated in Brazil, which are: Banana” (Musa spp.), “Coco” (Cocos nucifera), Curauá (Ananas erectifolius), Fique (Furcraea andina), Piteira” (Furcraea gigantea), Sisal(Agave sisalana) and “Taboa” (Typha domingensis). The tests for determining the percent dry completely, extractives soluble in cold water, in hot water, in sodium hydroxide 1% and in ethanol-toluene, and the percentages of ash, hydrophobicity, lignin, holocellulose and cellulose were performed at the Department of Environmental Sciences, Agronomy College (FCA) of UNESP – Botucatu, São Paulo State. It also presents a literature review about these fibers and their potential applications. Differences between the results obtained and those found by other authors are possibly explained by variations on the origin of plant material, the harvest season, the climate and soil where they were grown. However, the results and the methodology used, serve as a basis for further studies with natural fibers

Associação da ocorrência de formigas (Hymenoptera: Formicidae) com atributos do solo e da vegetação em um domínio do cerrado à nordeste do estado do maranhão, Brasil

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

Variabilidade espacial dos atributos físicos e químicos em um gleissolo mecânico sob três áreas no município Arari - MA

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

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

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

Amido retrogradado como excipiente de comprimidos para liberação controlada de fármacos: obtenção e caracterização

Pós-graduação em Ciências Farmacêuticas - FCFAR