Aperfeiçoamento e avaliação de um novo sistema de digestão assistida por aquecimento condutivo em frasco fechado para preparar amostras de carne “in natura” para análise elementar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Cultivo de Haematococcus pluvialis Flotow (Chlorophyceae) em sistema fototrófico e mixotrófico a base de meio alternativo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de métodos cromatográficos para a padronização do extrato de Eugenia speciosa Cambess

The use of medicinal plants is common in many Brazil's ethnic groups, because the diversity of plant species in the country is large. But the utilization of these plants as standardized herbal doesn't occur with de same frequency, due the lack of studies related to these therapies, classified as alternatives. Due to the high cost of some synthetic medicines for the treatment of chronic diseases, phytotherapy is a low-cost alternative and efficient, since the phytomedication has proven scientific studies and its production meets strict criteria for manufacturing and quality control to ensure its safety and efficacy. Among the medicinal species used for the treatment of chronic diseases, such as pain and inflammation, is Eugenia speciosa Cambess, popularly known as the bush laranjinha. Against this context, this paper held preliminary studies and developed the chromatographic profile of the hydroalcoholic extract of the leaves of E. speciosa by High Performance Liquid Chromatography coupled to photodiode array detector (CLAE-DAD). Preliminary qualitative results and the chromatographic profile have identified some metabolites classes present and some constituent as: homogentisic acid, homorientina, isovitexin and quercetrin

Efeito das diferentes direções de aplicação de jato de fluido de corte no torneamento de um aço de difícil usinagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estado da arte do sequenciamento genômico na pecuária

There has been a lot of advance in genomics since 1975 when the possibility to determine the nucleotide sequence of a genome was described. In the 90’s the human genome sequencing was started and it was greatly favored by advances in computer technologies. In the last ten years the development of next generation sequencing technologies allowed the sequencing of millions of bases at low cost and in a shorter time compared to the previous technologies. After the conclusion of the human genome project, several initiatives to sequence the genome of domestic animal species were taken, resulting in a large amount of data that is redirecting the goals of genetic studies in domestic animals. The aim of this review was to describe the present situation of the sequencing initiatives on the main domestic animal species of economical interest as well as to list the most important tools available to access the genomic information.

Avaliação histológica e videolaparoscópica de ligaduras dos pedículos ovarianos realizados com mononáilon agulhado ou abraçadeiras auto-estáticas de náilon em cadelas submetidas à ovariossalpingohisterectomia pela técnica do gancho

A procriação excessiva de cães e gatos no ambiente urbano é um problema de saúde pública e de bem estar animal. Para se desenvolver campanhas de controle populacional necessita-se de protocolos cirúrgicos seguros, rápidos e de baixo custo. A abraçadeira auto-estática de náilon aparentemente se encaixa neste perfil. Objetivou-se avaliar por laparoscopia e histologia, a reação tecidual após a ligadura dos pedículos ovarianos com abraçadeira auto-estática ou mononáilon agulhado na ovariosalpingohisterectomia em 18 cadelas. Após 60 dias do procedimento cirúrgico não foi observada pela laparoscopia nenhuma aderência ou alteração macroscópica e a histologia dos fragmentos dos pedículos ovarianos demonstrou que a resposta tecidual não diferiu entre os métodos, revelando que a abraçadeira auto-estática pode ser usada como método de ligadura dos pedículos ovarianos de cadelas submetidas à ovariosalpingohisterectomia.

Sistema de monitoramento da temperatura e umidade em silos graneleiros via radiofrequencia

The use of Information and Communication Technology has grown in most agricultural activities. As a consequence, it has changed the way of thinking and acting of the farmer who wants to establish a more and more competitive market. However, the high costs of acquisition and maintenance of those technologies may be a factor which can inhibit its spread and acceptance, mainly to a large number of small grain Brazilian farmers. In this context, there is a need for innovative solutions that are proper for this universe of farmers. Starting from this premise, this paper presents the development of a low cost prototype to the monitoring process of temperature and humidity values of grains stored in silos, using communication based on wireless technology by radio frequency. Therefore, the economic implications of cost/benefit ratio of innovative application of wireless transmission in the process of thermometry of grains were analysed. The prototype was made of two electronic units, one of acquisition and another one of data reception, as well as computational software, which offered the farmer more precise information for the control of aeration. By means of stability, integrity and reliability tests of data transmission via radio, using low cost electronic components, the development system can be considered as potentially viable. It presented the difference regarding the wireless communication via radio in the process of grains thermometry, providing mobility, reducing cabling costs and maintenance, and also offering an easy system expansion; it was also appropriate to temperature and humidity monitoring in grain silos; and revealed operational viability, besides the low cost development when compared to similar products available in the Brazilian market.

Construção e validação de um túnel de vento para ensaios de estimativa da deriva em pulverizações agrícolas

The aim of this study was to build and validate a low cost reduced-scale wind tunnel for drift evaluation on pesticide application technology. The work was carried out at the NEMPA - Núcleo de Ensaio de Máquinas e Pneus Agroflorestais (NEMPA), FCA/UNESP, Departamento de Engenharia Rural, Botucatu/SP, Brazil. The wind tunnel main characteristics were an open circuit and a closed working section with a fan blowing air into the tunnel. Screens were fitted downstream after the fan in order to stabilize the air flow on the working section. The tunnel was built with 3.0 mm eucalyptus hardboard, with a total length of 4.8 m and a squared section of 0.56 m. The air flow was provided by a 180 W axial fan. The system was adjusted and calibrated to provide a laminar and stable flow at 2.0 m s-1. Validation studies were carried out by using a Teejet XR 8003 flat fan nozzle at 200 kPa (medium droplets) to apply a spray solutions containing water plus a food dye (Blue FDC) at 0,6% m v-1 mixed with two adjuvants: a polymer based anti drift formulation at 0,06% m v-1 and a sodium lauryl ether sulfate based surfactant at 0,2% v v-1. After a 10-second application the drift was collected on nylon strips transversally fixed along the tunnel at different distances from the nozzle and different high from the bottom part of the tunnel. Drift deposits were evaluated by spectrophotometry. The wind tunnel had low levels of turbulence and high repeatability of the data, which means that the flow was uniform and able to be used for carrying out measures to estimate drift. The validation results showed that the tunnel was effective to enable comparative drift measurements on the spray solution used in this work making possible the evaluation of drift risk potential under those spray technologies. The use of an adjuvant based on a polymer reduced the amount of drift from the nozzle compared to the surfactant.

Características Físico-Químicas, energéticas e desempenho da fibra de coco na sorção de óleo diesel e biodiesel

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

Avaliação de um sensor de resistencia eletrica e sua correlação com atributos do solo

The electrical measures of the soil have been used as variables that correlate with its characteristics. This study aimed at developing an electrical capacitance sensor of low cost, to evaluate its performance on the field and verify the correlation between the measurements of electrical capacitance with physical properties (sand, silt and clay) and chemical properties of soil (pH, MO, P resin, H + Al, K, Ca, Mg, SB, CTC and V%) and the moisture content. The data sampling was performed at the farm named "Capão da Onça" which belongs to the State University of Ponta Grossa. The samples collection was conducted in an area of approximately 13 hectares, totalizing 81 samples. In each sampling the electrical capacitance of the soil was measured. After the sensor withdrawal, soil samples were collected and sent to be analysed in the laboratory of the College of Agronomics Science of the Paulista State University. The measuring instrument used to collect data on electric capacitance of the soil a digital multimeter was used. The data were submitted to the analysis of correlation and regression. The developed system presented a low cost and it was capable to measuring variation of the electrical capacitance of the soil. The obtained measures satisfactorily correlated with the levels of clay and sand, and weakly with the moisture content. This had demonstrated the possibility to use a sensor to verify the soil texture in not homogeneous areas. The measures of the electrical capacitance of the soil obtained by the sensor had significantly correlated with the soil attributes: calcium, magnesium, pH, SB and CTC. These results had demonstrated the possibility to use a sensor for soil fertility control.

Relação ideal dos aminoácidos essenciais para mantença, crescimento e produção de aves

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

Utilização de material alternativo para a obtenção e caracterização de biomodelos, por meio da técnica de impressão 3DPRINTER

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise de junta aparafusada de biela automotiva

Pós-graduação em Engenharia Mecânica - FEG

Óxidos derivados de hidromagnesitas e hidrotalcitas modificadas como catalisadores heterogêneos na síntese de biodiesel etílico

Pós-graduação em Química - IBILCE

Obtenção de nanofibras de carbono a partir do processo de eletrofiação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)