Viabilidade econômica do cultivo de shiitake em diferentes escalas de produção

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

Custos e viabilidade econômica da produção de lambari-do-rabo amarelo em Monte Castelo/SP: um estudo de caso

The aim of this study was to analyze the cost of production and economic viability of production of Lambari in Monte Castelo/SP, with the primary market for the live-bait for sport fishing of carnivorous fish. To calculate the operating cost structure was used the model proposed by the Instituto de Economia Agricola from São Paulo/Brazil. In analyzing the economic viability of investment, we determined the Internal Rate of Return (IRR) and Pay Back Period. It was noted that the inputs represented approximately 74.0% of the EOC (Effective Operating Cost). In the rentability analysis (short term), there was an operating profit of R$ 3,133.45 for a cycle, with a profitability of 18.65% for four months of production, a cost price of R$ 13.02 kg(-1). For viability of the activity (long term), the results were attractive to recovery capital from the 3(rd) year (Pay Back), with an IRR of 25.68% and 89.0% return on the producer in 5 years (BCR - benefit cost ratio). The study of costs and economic viability analysis reinforce the importance of rational management in the productive system and the importance of planning and managing the profitability of the activity.

Effect of C/N Ratio and Physicochemical Conditions on the production of Rhamnolipids by Pseudomonas Aeruginosa LBI

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Coordinate and time-dependent diffusion dynamics in protein folding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Configuration-dependent diffusion can shift the kinetic transition state and barrier height of protein folding

We show that diffusion can play an important role in protein-folding kinetics. We explicitly calculate the diffusion coefficient of protein folding in a lattice model. We found that diffusion typically is configuration- or reaction coordinate-dependent. The diffusion coefficient is found to be decreasing with respect to the progression of folding toward the native state, which is caused by the collapse to a compact state constraining the configurational space for exploration. The configuration- or position-dependent diffusion coefficient has a significant contribution to the kinetics in addition to the thermodynamic free-energy barrier. It effectively changes (increases in this case) the kinetic barrier height as well as the position of the corresponding transition state and therefore modifies the folding kinetic rates as well as the kinetic routes. The resulting folding time, by considering both kinetic diffusion and the thermodynamic folding free-energy profile, thus is slower than the estimation from the thermodynamic free-energy barrier with constant diffusion but is consistent with the results from kinetic simulations. The configuration- or coordinate-dependent diffusion is especially important with respect to fast folding, when there is a small or no free-energy barrier and kinetics is controlled by diffusion. Including the configurational dependence will challenge the transition state theory of protein folding. The classical transition state theory will have to be modified to be consistent. The more detailed folding mechanistic studies involving phi value analysis based on the classical transition state theory also will have to be modified quantitatively.

An integrated approach to identification and conservation of medicinal plants in the tropical forest - A Brazilian experience

An integrated and interdisciplinary research programme with native medicinal plants from tropical forests has been performed in order to obtain new forest products for sustainable use in regional markets vis-à-vis ecosystem conservation. For the success of this programme ethnopharmacological studies are very important with respect to (i) identification of useful plants including medicinal and aromatic species; (ii) recuperation and preservation of traditional knowledge about native plants; and (iii) identification of potential plants with economic value. The plants are selected with a view to evaluate efficacy and safety (pharmacological and toxicological studies), and phytochemical profile and quality control (phytochemical and chromatographic characterization). These studies are very important to add value to plant products and also to mitigate unscrupulous exploitation of medicinal plants by local communities, since multiple use of plants represents an excellent strategy for sustaining the tropical ecosystem through ex situ and in situ conservation. Thus, conservation of tropical resources is possible in conjunction with improvements in the quality of life of the traditional communities and production of new products with therapeutic, cosmetic and 'cosmeceutic' value. © NIAB 2005.

Rendimento e composição química do filé de prochilodus lineatus do rio mogi guaçu, Brasil

The curimbata constitutes species of fish of wide distribution in the Neotropical area and high economic value. This work focused to evaluate processing yield and the chemical composition of the fillet in the male and female migratories and residents stocks of Prochilodus lineatus. The using the plotting was completely randomized by 4x2 factorial scheme, having as factors four stocks (one resident and three migratories) and two genders (male and female) with thirty replicates, considering each fish as an experimental unit. Each individual was submitted to the manual filleted and determination of the corporal composition (texts of moisture, crude protein, lipids, ashes and energy). They following parameters of yield had been evaluated (%): visceral entire fish (RPIE %); yield of boneless fillet (RFILE %) and processing yield of fillet with bone (RFILEC %). There was a significant difference (p<0.05) between the stocks and the studied samples. The biggest yield of boneless fillet were observed for the fish of the migrator stock I (45.77%). Males and females of the migrator stock I presented biggest fillet yield (46.79% and 43.93%, respectively), while the migrator III presented smaller yield (37.29% for males and 38.44% for females). The migratories stocks I, II and III presented values significantly smaller (p<0.05) of lipids level (0.98%; 2.01% and 1.97%, respectively) and an increase in the content of corporal protein in relation to the resident stock. It concluded that the male weighing 591g on average, belonging of the stock migrator I (captured in December), presented better thread yield and the stocks migratories are fish that has low fat tenor and high protein tenor.

Avaliação da seleção para aumento de porcentagem de flores pistiladas em mamona (Ricinus communis L.)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ciclo reprodutivo e análise ultraestrutural da espermatogênese de Cichla kelberi (TeLeostei: Perciformes: Cichlidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Mercado e trabalho no ensino superior

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação econômica do aproveitamento do biogás e biofertilizante produzido por biodigestão anaeróbia: estudo de caso em unidade biointegrada

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

Interdisciplinaridade no ensino médio: a construção de um projeto coletivo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Polimorfismos no gene JY-1 e suas associações com probabilidade de prenhez precoce e características de crescimento em novilhas da raça Nelore

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

Estimativas de valores econômicos para sistemas de recria e engorda de bovinos Nelore e cruzados

Pós-graduação em Genética e Melhoramento Animal - FCAV

A teoria da dependência no pensamento socioeconômico de Fernando Henrique Cardoso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)