Qualidade da aplicação de inseticida em amendoim (arachis hypogaea l.), com e sem adjuvantes na calda, sob chuva simulada

The present work aimed to evaluate the volumetric distribution profiles, droplet spectra, surface tension, contact angle of droplet and the spraying liquid deposition over the peanut leaves (Arachis hypogaea L.), under artificial rain, in comparison with deposition without rain, using two hydraulic nozzle models of plain fan and insecticide spraying liquids with and without adjuvants addition. It were used a patternator for volumetric distribution analysis, a laser particles analyzer to evaluate droplet spectra produced by SF 110015 and XR 110015 nozzles and tensiometer for droplet tension and contact angle. The spraying liquids evaluated were: water, lambda-cialotrina, lambda-cialotrina + nitrogen fertilizer and lambda-cialotrina + mineral oil. All experiments followed a completely randomized design. Data were submitted to variance analysis by F test and the means comparisons by Scott-Knott test at 5% of probability. According to the results, it must be considered the maximum spacing in spray boom usage of 50 and 90 cm between the nozzles SF110015 and XR110015, respectively. The adjuvants effects on droplet spectra have shown addicted to the nozzle and the product used, and the adjuvants addition to the spraying liquid affected the potential risk of drift; The Volumetric Median Diameter (VMD) of produced droplets by nozzles filled into thin class and were not influenced by the adjuvants. The nitrogen fertilizer adjuvant may be indicated to promote improvements on coverage and droplet deposition on target.

Massa de forragem, composição química do capim-massai e comportamento ingestivo de ovinos durante a fase de implantação do eucalipto em sistema silvipastoril

Pós-graduação em Zootecnia - FCAV

Horários de aplicação localizada ou em área total e uso de adjuvantes para o controle de Spodoptera frugiperda (Lepidoptera: Noctuidae) na cultura do milho

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Estudo comparativo do processo de reparo utilizando osso autógeno e beta-tricálcio fosfato em levantamento do assoalho do seio maxilar em humanos: análise tomográfica, histológica, histométrica e imunoistoquímica

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

Avaliação da estabilidade da capacidade de produção de cefamicina C por Streptomyces clavuligerus

Streptomyces clavuligerus é uma importante espécie industrial que produz múltiplos compostos de interesse clínico, destacando-se o antibiótico cefamicina C (CefC) e o ácido clavulânico (AC), um potente inibidor de b-lactamases produzidas por bactérias resistentes a penicilinas e cefalosporinas. Sabe-se que situações limite como subculturas sucessivas, forma inadequada de armazenamento das células, variações bruscas de condições de cultura, podem causar deleções de mais de 25% dos genes de Streptomyces sp que, embora muitas vezes não comprometam a sobrevivência do micro-organismo, acarretam perdas na capacidade produtiva. Neste trabalho, investigou-se a estabilidade da linhagem selvagem S. clavuligerus ATCC 27064 quanto à produção de CefC variando-se condições do inóculo utilizado nos cultivos submersos de obtenção do antibiótico. As fermentações foram realizadas em frascos agitados (28ºC, 260 rpm) e as amostras coletadas em 48 e 72 horas do caldo fermentativo foram analisadas quanto ao pH, biomassa (massa seca a 105ºC por 24 h) e CefC foi determinada por bioensaio de difusão em ágar (bactéria-teste Escherichia coli ESS 2235). Foi selecionado o micro-organismo melhor produtor por meio de screening, e o que apresentou a melhor produção de CefC e os menores desvios com relação à média foi utilizado para preparar novos lotes de células: ampolas de micélios liofilizados e criotubos contendo 108 esporos.mL-1 . Observou-se que a capacidade produtiva foi afetada quando foram utilizadas subculturas do micro-organismo original. A realização do screening mostrou-se eficiente na seleção de colônias superiores em termos de produção volumétrica, sendo recomendada a realização de tal procedimento periodicamente para manutenção de uma linhagem com maior potencial produtivo... (Resumo completo, clicar acesso eletrônico abaixo)

Estudo da contribuição do espalhamento nuclear não elástico de prótons na dose depositada em alvos com composição homogênea

Due the differences between interaction physics process with matter for protons and photons, the proton beam tomography (pCT) has some vantages to comparison with conventional tomography. Also it is confirmed that usually pCT has better dose distribution and highest contrast resolution. The pCT allow not only view the internal structure of an object without destroying it, but also directly measure of volume density of electrons. Also it is confirmed that usually pCT has better dose distribution and highest contrast resolution. At the same time, there are many scientific and technical aspects to a detailed study: the capacity and limitations of the pCT methods are not well clarified. Through computations, based on Monte Carlo Method was carried out a detailed study of the contribution of non-elastic nuclear spreading, and together was compared with an analytical model for the deflection angle and the lateral deflection of protons in the target volume. The programs used were SRIM 2006 code and MCNPX v.2.50 code

Vitrocerâmicas para blindagens balísticas

The use of ceramic materials in ballistic armor is considerable. Such materials can be very harder and lighter than metallic materials commonly used and it presents advantages to replace metallic materials when necessary toughness can be achieved. However, as SiC and Al2O3 ceramic, traditionally used for shielding, still have high manufacturing cost or low density do not have enough to shield applications such as aircraft. An alternative is the glass-ceramics, ceramics obtained by controlled crystallization of glasses, whose properties can be adjusted by choosing the chemical composition of glass, heat treatment of crystallization and special treatments such as ion exchange on the surface, resulting in increased mechanical strength . The objective of this project is to study the kinetics of crystallization of a glass composition based on cordierite (2MgO.2Al2O3.5SiO2), low density and high hardness, for the manufacture of glass-ceramics for ballistic tests. Shown in this report are results of heat treatment of crystallization and characterization by thermal analysis (DSC) glass obtained previously, indicating uneven distribution of crystals, and drying, weighing, mixing of raw materials and a new fusion of glass, the same composition

Avaliação da adição da Lactobacillus acidophilus CRL 1014 e Enterococcus faecium CRL 183 sobre a microbiota intestinal em Simulador do Ecossistema Microbiano Humano (SEMH)

Os micro-organismos probióticos são utilizados em vários produtos alimentícios ou em suplementos alimentares. Simuladores intestinais representam uma opção de realização de estudos com a microbiota intestinal. O simulador do ecossistema microbiano humano (SEMH) consiste em uma sucessão de cinco reatores conectados que representam as diferentes partes do trato gastrointestinal humano com seus respectivos valores de pH, tempo de residência e capacidade volumétrica. O SEMH foi utilizado para estudar o efeito do Enterococcus faecium CRL 183 e do Lactobacillus acidophilus CRL 1014 sobre a microbiota intestinal nativa. Inicialmente, o inóculo preparado com fezes humanas foi introduzido nos três reatores, responsáveis por simular o cólon ascendente, transverso e descendente. Após duas semanas de estabilização foi adicionado, diariamente, durante quatro semanas, E. faecium CRL 183 e L. acidophilus CRL 1014 contendo 108 UFC/mL nos três compartimentos que simulam o cólon ascendente, transverso e descendente. Após as quatro semanas de tratamento o sistema permaneceu durante duas semanas sem adição de probióticos. Durante todo o experimento, foi realizado semanalmente a composição da microbiota intestinal baseada na enumeração de bactérias aeróbias e anaeróbias totais, Enterococcus spp., Lactobacillus spp., Bifidobacterium spp., Enterobactérias e Clostridium spp. Semanalmente, também, foram realizadas análises de ácidos graxos de cadeia curta (acetato, butirato e propionato) e amônia. Através da análise microbiológica observou-se alterações significativas na composição da microbiota do SEMH no decorrer do período do experimento. Alterações significativas também foram observadas na concentração de amônia e de AGCC, podendo assim observar a influência da inoculação de probióticos na microbiota nativa e os metabólitos produzidos por ela

Análise das propriedades físicas em estrutura do tecido ósseo de eqüinos

This project has several objectives: To determine medium values and variations of the density, porosity, humidity, shrinkage volume and the coefficient of mass attenuation of gamma radiation of 59,6 keV of the radioisotope 241Am, using samples of equine radio, in growth and adult. The samples of bones were supplied by the Department of Pathology of University of Veterinary Medicine and Zootechnics - UNESP campus Botucatu. Bones of the paws front left of two males were used. Of each bone ten samples were removed. Those samples were prepared to just obtain compact bony fabric, being submitted to the rehearsal of determination of the density by the immersion method in water and determination of the coefficient attenuation lineal for the method of attenuation of the radiation of the 241Am, also obtaining your humidity content. Still, they were obtained new samples starting from the ground samples and verified the density of the particles present in that, obtaining the medium value of the coefficient of mass attenuation. The results showed the medium values and significant statistical variations of the density, porosity, humidity, shrinkage volume and coefficient of mass attenuation of gamma radiation of 59, 6 keV of the radioisotope 241Am in the samples, establishing some relationships between of the certain physical parameters with biological aspects and possible existent influences between them

Fermentação metanogênica mesofílica de melaço e termofílica de vinhaça em reatores UASB

Pós-graduação em Microbiologia Agropecuária - FCAV

Physical-chemical characterization and wet milling yield of four maize hybrids

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

Análise microestrutural e propriedades mecânicas do aço DP 600

Seeking to meet the requirements: relatively low cost of materials and wide applicability in the automotive industry. The best option was the steel Dual Phase (DP), because that is lighter, have high formability, meet the cost requirements and applicability, steel Dual Phase (DP) came to meet these requirements with its two-phase microstructure, ferrite and martensite microstructure who claim to respect and mechanical properties. In this context, the aim of this study was to correlate the microstructure revealed in metallography to the mechanical properties observed in hardness and tensile tests. The microstructure is revealed by etching in 2% nital and then captured images of the sample were processed in ImageJ software to aid in determining the volume fraction of the phases present. Therefore, the mechanical properties were evaluated with respect to volume fraction of the steel layers and analyzed DP 600 together with the mechanical properties obtained by Rockwell hardness test and tensile test. With the values of the mechanical properties calculated and tested, it was possible to describe the method of metallography, as the attack phase and counts, so that it can use this relationship tested/calculated property as a qualitative analytical tool. The method used for the correlation between the microstructure and mechanical properties confirmed the importance of the phases present in the Dual Phase steel to obtain the desired mechanical properties in the application of the steel

Comportamento das curvas de saturação da água e LNAPL em solo da formação Rio Claro

Pós-graduação em Geociências e Meio Ambiente - IGCE

Otimização do processamento de partículas lead-free para aplicação em compósitos polímero/cerâmica com propriedades piezoelétrica e fotoluminescente

Pós-graduação em Química - IQ

Treatment and complications of orbito-zygomatic fractures

The aim of the present study was to analyze the etiology, type and treatment employed in the orbito-zygomatic fractures (OZ). Also, postoperative complications are described and correlated with the type of treatment used. Fifty patients with OZ fractures were evaluated. Orbital fractures in which the zygomatic bone was not involved were excluded. Epidemiologic data and characteristics of treatment such as the type of material used for osteosynthesis, number of anatomical sites on which rigid internal fixation (RIF) was applied, surgical approaches and associated complications were recorded. The main causes of trauma were motorcycle and bicycle accidents, constituting 52% of the sample. The osteosynthesis system used was the 2.0 mm, except in four patients in whom the 1.5mm system was used for fixation at the infra-orbital rim. A total of 18% of the patients required reconstruction of the internal orbit and in all cases titanium mesh was used. 46% of the patients received RIF in three anatomical sites, most in the fronto-zygomatic suture, infra-orbital rim and zygomatic-maxillary buttress. The most frequent complication was paresthesia of the infra-orbital nerve (34 patients, 68%). Other findings were also discussed with the intent of better understanding the treatment of the OZ fractures.