Efeito de métodos de desgaste com pontas diamantadas e da ressinterização sobre o limite de fadiga flexural de uma zircônia parcialmente estabilizada por ítria

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

Comparação entre métodos diagnósticos da tuberculose em bovinos abatidos em matadouros-frigoríficos do Estado de São Paulo

Pós-graduação em Medicina Veterinária - FCAV

Chemical control of different digitaria insularis populations and management of a glyphosate-resistant population

This study aimed to control different populations of Digitaria insularis by glyphosate herbicide, isolated and mixed, besides the combination of methods (chemical and mechanical) to manage resistant adult plants. Three experiments were conducted, one in pots which were maintained under non-controlled conditions and two under field conditions. In the experiment in pots, twelve populations of D. insularis were sprayed with isolated glyphosate (1.44 and 2.16 kg a.e. ha(-1)) and mixed (1.44 and 2.16 kg a.e. ha(-1)) with quizalofop-p tefuryl (0.12 kg i.a. ha(-1)). The treatment of 1.44 kg a.e. ha(-1) of glyphosate plus 0.12 kg a.i. ha(-1) of quizalofop was sufficient for adequate control (>95%) of all populations. Population 11 (area of grain production in Itumbiara, GO) was considered sensitive to glyphosate. Others populations were moderately sensitive or tolerant to the herbicide. In the field, the plants of D. insularis of one of the experiments were mowed and, in the other, there were not. Eight treatments with herbicides [isolated glyphosate (1.44 and 2.16 kg a.e. ha(-1)) and mixed (1.44 and 2.16 kg a.e. ha(-1)) with quizalofop-p-tefuryl at 0.12 kg a.i. ha(-1)), clethodim at 0.108 kg a.i. ha(-1)) or nicosulfuron at 0.06 kg a.i. ha(-1))] were assessed, in combination with or without sequential application of the standard treatment, sprayed 15 days after the first application. The combination of the mechanic control with the application of glyphosate (2.16 and 1.44 kg a.e. ha(-1)) plus quizalofop-p-tefuryl (0.12 kg a.i. ha(-1)) or clethodim (0.108 kg a.i. ha(-1)), associated to the sequential application, was the most effective strategy for the management of adult plants of resistant D. insularis.

Comparação entre métodos para determinar o período anterior à interferência de plantas daninhas em feijoeiros com distintos tipos de hábitos de crescimento

Beans grain productivity may be reduced by up to 80% and, therefore, knowing the proper time to control weeds becomes fundamental, his research was conducted in order to determine the period prior to interference (PPI) on bean cultivars of different types'plant growth through distinct approaches: arbitrary level of 5% productivity loss; tolerance level (TL), and the Weed Period Prior to Economic Loss (WEEPPEL). Experimental treatments were constituted of ten periods of coexistence, periods of the crop with the weeds: 0-7; 0-14; 0-21; 0-28; 0-35; 0-42; 0-49; 0-56; 0-97 (harvesting) days after emergency (DAE), and a control plot, weed free for the entire period. The experimental design was of the Random Block Design, with four replications. PPI was obtained in all of the different approaches, and the bean plant type II with indeterminate growth had the lowest times of coexistence.

Análise dos métodos de leira estática e de revolvimento manual na compostagem de resíduos orgânicos gerados em restaurante universitário

Composting is considered a process that enables adding value to organic solid waste turning them into organic fertilizer. In this process, factors such as mishandling the windrow, failed to control the temperature, aeration and moisture content will result in the quality of waste decomposition, and thus affect the quality of the final compound. Decentralized systems such as home composting, composting in restaurants, food courts and schools are one of the solutions for valuing these waste in a non expensive way and with greater quality. For this purpose, the project aims to analyze the conditions for composting of solid waste of the University Restaurant of Rio Claro- SP, through two different composting systems: manual revolving windrow and static pile. It was found that in University Restaurant (RU) on average 33% by weight of the total waste generated in the property are capable of composting. In this sense, in order to investigate the preliminary process operation parameters were mounted one manual windrow composed of 100% of the UR waste and a static pile composed of 60% of the UR waste and 40% of pruning and grass residues (PG). This study analyzed the manual revolving windrow and static pile systems for the parameters: moisture content, pH, C / N ratio and temperature. The study of the proportions of the PG and UR waste pointed to the need for pruning and grass residues addition for composting, considering that the manual revolving windrow composed by 100% of the UR waste had no satisfactory performance due to low temperatures measured during 60 days analysis. The best ratio for manual revolving windrow method analyzed in this study was 60% of the UR waste and 40% of PG waste, in dry weight. From this proportion a static pile was assembled, composed of 60% of UR waste e 40% of PG waste from the maintenance activities of the green area of the university. The biological activity in the static pile reached the maximum temperature of ...

Comparação entre dois métodos de detecção de DNA de papilomavírus humano em carcinoma epidermoide de lábio

Introdução: Recentemente o papilomavírus humano (HPV) tem sido associado à carcinogênese oral. A metodologia empregada na detecção do vírus é uma das maiores causas observadas da grande variabilidade nas taxas de detecção do HPV. Objetivo: Este estudo comparou a sensibilidade de detecção do DNA do HPV em casos de carcinoma epidermoide de lábio utilizando a amplificação do DNA viral por reação em cadeia da polimerase (PCR) ou nPCR. Material e método: Foram utilizadas 33 amostras provenientes de casos de carcinoma epidermoide de lábio. Para as extrações do DNA utilizou-se o sistema QIAamp DNA Mini Kit. Como controle interno utilizou-se o gene da b-globina. Das 33 amostras iniciais, 30 foram positivas para o gene b-globina, sendo utilizadas para detectar o DNA viral. Comparou-se a amplificação do DNA viral pelos métodos da PCR com os oligonucleotídeos MY09/MY11 e nPCR, empregando-se os pares de oligonucleotídeos iniciadores MY09/MY11 e, na segunda etapa, o par GP5+/GP6+. O controle positivo para a presença do DNA do HPV utilizado foi a linhagem de células HeLa e, como controle negativo, a mistura de amplificação sem DNA. A análise dos produtos de PCR e nPCR para HPV foi realizada por eletroforese em gel de poliacrilamida a 8%. Resultados: Utilizando-se o método da PCR, a amplificação do DNA do HPV foi constatada em dois casos. Com a nPCR foi verificada presença de DNA viral em 13 das 30 amostras. Conclusão: Com a utilização da nPCR, a detecção do HPV nos casos estudados aumentou mais de seis vezes.

Métodos de aplicação e de avaliação do residual de fungicidas no controle de mofo-branco em soja e feijão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Apresentação de métodos para implementação de plataformas colaborativas de Sistemas Automatizados de Produção

Automated Production Systems Development involves aspects concerning the integration of technological components that exist on the market, such as: Programmable Logic Controllers (PLC), robot manipulators, various sensors and actuators, image processing systems, communication networks and collaborative supervisory systems; all integrated into a single application. This paper proposes an automated platform for experimentation, implemented through typical architecture for Automated Production Systems, which integrates the technological components described above, in order to allow researchers and students to carry out practical laboratory activities. These activities will complement the theoretical knowledge acquired by the students in the classroom, thus improving their training and professional skills. A platform designed using this generic structure will allow users to work within an educational environment that reflects most aspects found in Industrial Automated Manufacturing Systems, such as technology integration, communication networks, process control and production management. In addition, this platform offers the possibility complete automated process of control and supervision via remote connection through the internet (WebLab), enabling knowledge sharing between different teaching and research groups.

Monitoramento da atenuação natural de álcool etílico hidratado combustível em escala laboratorial por meio de métodos geofísicos

Currently has few studies today concerning the behavior of the ethyl alcohol hydrated combustible in the geological environment, results of eventual spill or leaks in a wide transport chain and distribution. This work discusses the results of an experiment in laboratorial scale, that involves the monitoring of alterations in physical properties a simulate leak of alcohol in a tank with sand saturated in water, during 4920 hours. Are applied electrical resistivity, induced polarization and spontaneous potential geophysical methods. The electric resistivity is clearly correlating to the ethanol degradation pattern. The chargeability demonstrated sensibility to this pattern, while the natural electric potential revealed direct association with the oscillations of groundwater level. The variability of the physical parameters monitoring probable control for ethanol degradation process in environment study.

Desenvolvimento de procedimentos e métodos analíticos no campo forense aplicando os princípios da química verde

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

Qualidade da água no município de Lençóis Paulista-SP e Comparação entre métodos de purificação de água

The purpose of a water treatment plant (WTP) is to provide quality water to the population in the municipality where it is operate, being directly linked to the health of the community. The efficiency of a water treatment is directly related to the quality and reliability of the methods used. The analytical results of any laboratory test or calibration is a critical process for any company today. A tool used to assist in a quality management system process is ISO/IEC 17025:2005. Given the above, the objective of this study was to evaluate the performance of an ETA located in Lençóis Paulista-SP, using the analytical results obtained by physical, chemical and microbiological determinations in the period 1-30 October 2015. Such determinations are grounded in compliance with current Ordinance 2914 the Ministry of Health and the Quality Management System, which is required for all laboratories carrying out laboratory tests for control and surveillance of water quality for human consumption

Métodos de controle químicos e físicos de Marchantia polymorpha

Marchantia polymorpha develops under environmental conditions of high relative humidity and shading. As this habitat is the usually used in nurseries for the growth of seedlings of native tree species that species grows very quickly among developing tree seedlings and causes severe losses. This study was undertaken viewing more efficient either physical or chemical methods for the control of M. polymorpha. Two experiments were conducted under greenhouse conditions. In the first acetic acid (10, 20, and 40% of concentration), oxygenated water (50 and 100%) and the herbicides glyphosate (1,680 g AI ha) and fomesafen (375 g AI ha-1 ) were applied to the seedlings. In the second, the treatments consisted of soil previously submitted to a temperature of 105 °C for 48 hours, soil submitted to solarization in black plastic and in transparent plastic bags for 30 days, preemergence application of diuron (1,750 g AI ha-1 ) and trifluralina (1,575 g AI ha-1 ). The visual evaluations of the methods were performed 7, 14, 21, and 28 days after the application (DAA) and at 60 and 120 DAA, respectively, for the first and the second experiment. Only diuron and trifluralina resulted in a 100% control of M. polymorpha 120 DAA.

Comparação entre métodos para determinar o período anterior à interferência de plantas daninhas em feijoeiros com distintos tipos de hábitos de crescimento

A interferência causada pelas plantas daninhas pode reduzir em até 80% a produtividade de grãos do feijão quando não manejadas de forma correta. Portanto, a decisão sobre o momento de controlá-las é um dos principais aspectos do manejo integrado. Nesse sentido, objetivou-se com este trabalho determinar o período anterior à interferência das plantas daninhas (PAI) em cultivares de feijão com diferentes tipos de hábitos de crescimento. Adotou-se o delineamento experimental de blocos casualizados com quatro repetições. Os tratamentos experimentais foram constituídos de dez períodos de convivência da cultura com as plantas daninhas: 0-7, 0-14, 0-21, 0-28, 0-35, 0-42, 0-49, 0-56, 0-97 (colheita) dias após a emergência (DAE) e mais uma testemunha sem convívio com as plantas daninhas. O PAI foi determinado por meio de distintas abordagens: o nível arbitrário de 5% de perda na produtividade, o nível de tolerância (NT) e o de dano no rendimento econômico (PADRE). O PAI obtido foi diferente em todas as abordagens, e os feijoeiros de crescimento indeterminado tipo II apresentaram os menores tempos de convivência.

Métodos de seleção de pessoal: discussões preliminares sob o enfoque do behaviorismo radical

A seleção de pessoal visa a introduzir na organização os candidatos mais apropriados as suas necessidades. Existe uma carência de literatura behaviorista radical acerca desse tema, sendo necessário o desenvolvimento de trabalhos que orientem atuações coerentes com essa teoria. O objetivo deste estudo é discutir os métodos utilizados na seleção à luz dos pressupostos conceituais do behaviorismo radical. Os métodos de seleção existentes são analisados e discutidos em termos de aumento do controle das variáveis presentes no contexto da seleção a fim de proceder à identificação dos repertórios comportamentais dos candidatos. Propõe-se uma análise de cargo baseada nos conceitos behavioristas, discute-se a possibilidade de condução de entrevistas de seleção focadas no comportamento bem como o uso de técnicas de simulação que permitam a identificação de repertórios comportamentais. Conclui-se que é necessário desenvolver discussões teóricas e instrumentos operacionais facilitadores de uma prática psicológica vinculada aos pressupostos behavioristas radicais.