Estudo da ocorrência de tetraciclinas e estrógenos em água superficial, subterrânea e esgoto tratado na cidade de Campo Grande (MS)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Alquifenóis em água superficial: estudo analítico e determinação no Ribeirão das Cruzes (Araraquara, SP)

Pós-graduação em Química - IQ

Pesticidas mais empregados na cultura de soja no município de Dourados (MS): determinação em água para consumo humano

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de metodologia qualitativa para identificação de ceftazidima

A partir deste estudo, métodos para análise qualitativa foram desenvolvidos a fim de identificar ceftazidima em matéria-prima e em formulações farmacêuticas. Esses métodos incluíram testes físico-químicos baseados em propriedades químicas por reações clássicas de coloração e testes instrumentais, tais como cromatografia em camada delgada, calorimetria e espectroscopia no ultravioleta. Os resultados foram obtidos diretamente através de identificação visual pela coloração desenvolvida e pela análise dos espectros obtidos nos testes instrumentais. Esses métodos mostraram-se reprodutíveis e rápidos para identificar ceftazidima na presença de outros antibióticos -lactâmicos, podendo ser usados rotineiramente em análises de controle de qualidade. Palavras-chave: Análise qualitativa. Controle de qualidade. Ceftazidima. ABSTRACT Qualitative methods for the identification of ceftazidime In this study, qualitative analytical methods were developed for the identification of ceftazidime in raw material and in pharmaceutical formulations. These methods included physicochemical tests based on chemical properties, performed by classical colorimetric reactions, and instrumental tests, such as thin-layer chromatography, calorimetry and ultraviolet spectroscopy. Results were obtained directly, through the visual identification of the drug by the color developed, and by analyzing the spectra obtained. These methods proved to be reproducible and fast means of identifying ceftazidime in the presence of other beta-lactam antibiotics and may be used for routine quality control tests. Keywords: Qualitative analysis. Quality control. Ceftazidime.

Platão e a matemática: uma questão de método

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Nonlinear dynamics of within-host parasite competition

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Modalities for soil preparation and gypsum application in ultisol: stem productivity of sugarcane

O trabalho foi conduzido em área de expansão de cana-de-açúcar da Usina Vale do Paraná, no município de Suzanápolis - SP, na região do noroeste paulista. Foi utilizada a variedade de cana RB92-5345, espaçamento de 1,5 m entre linhas, em ARGISSOLO VERMELHO. O trabalho objetivou avaliar a produtividade em cana-planta e 1ª cana-soca e alguns atributos químicos de solo, em função dos métodos de preparo do solo e aplicação ou não de gesso. O delineamento experimental utilizado foi o de blocos ao acaso, com seis tratamentos, fatorial 3x2, e seis repetições. Os tratamentos principais foram preparos de solo com três equipamentos: arado de aivecas, escarificador e grade pesada, e dois tratamentos secundários com aplicação de 1 t ha-1 de gesso e sem gesso. Após cada colheita da cana, o solo foi caracterizado quanto aos indicadores de fertilidade nas camadas de 0,0-0,15; 0,15-0,30 e 0,30-0,45 m. As diferenças dos atributos químicos do solo, devido aos métodos de preparo ocorridas na cana-planta, não perduraram até a colheita da 1ª cana-soca e também não influenciaram na produtividade da cultura. A gessagem proporcionou maiores valores de ATR e produtividade de TCH, para cana-planta e 1ª cana-soca, respectivamente, confirmando a hipótese inicial.

Avaliação experimental de eficiência térmica de um recuperador de calor e caldeira em um sistema de cogeração

Pós-graduação em Engenharia Mecânica - FEB

Gestão ambiental aplicada a prevenção, controle e recuperação de erosão linear acelerada no município de Ipeúna-SP

The erosion is a natural process of detachment, transport and deposition of soil and rock particles from one place to another. Human activities with no previous planning may accelerate this process, causing several damages to the environment and to society. In order to control the acceleration of these erosion processes caused by humans, prevention and improvement initiatives emerge. Regarding works which interfere directly in some of the natural resources, these initiatives must respect the intrinsic physical properties of the area of interest, if they aim to obtain effective results. Based on this scenario, this work proposes a few methods of accelerated linear erosion prevention, control and recovery in a specific area of the municipal district of Ipeúna (SP). For that matter, this study is based on a method of physiographic compartmentalization of the area, considering and integrating soil, relief, geology and the use and land cover properties of the study area. Plus, a flowchart with general orientations regarding management of eroded areas was produced, focused on the control and recovery of linear erosion. The result demonstrates the importance of careful erosion control, respecting the physical properties of each physiographic unit. The vegetative and mechanical conservationists methods, and the discipline of water flow, have found wide applicability in the study area.

Metodologia de determinação das curvas de probabilidade de falha S-N-P para uma liga de aluminio submetida a diferentes tratamentos termicos de solubilização e precipitação

The approach of the subject matter in this work relies on the fact that the reliability of methods for performance analysis of materials proves critical for the result. This work focused on the development and presentation of the methodology for lifting probability curves for fatigue test (SN) according to standard E739, this focus is justified by the fact that the results in fatigue test show considerable dispersion making it difficult to reading and interpretation of data, this dispersion arises because the phenomenon of rupture is strongly influenced by internal characteristics of the material, we can then have much data ranging from test to test. Thus we set out originally for a brief study of aluminum alloys in question, as well as the treatments to which they were subjected. We also studied the behavior of materials when subjected to cyclic loading, which configures process of fatigue failure, and even fatigue test method in question. This statistical analysis is based on the ASTM E739 standard, so its contents was studied in detail so that we could present in detail the methodology and raise SN curves for different aluminum alloy 7012 subjected to fatigue test. Data were collected from tests conducted in the department of materials from two samples of aluminum alloy 7012 solubilized and precipitated by different time intervals and assayed temperature fatigue-type traction-compression, these data were then analyzed and used to survey curves using the base as E739. After lifting the curve analyzed the characteristics of the test samples and their correlation with the test results. We confirmed the effectiveness of the method of statistical analysis by ASME E739, which allowed the reading of data without this method would be very difficult to have a reading and comparison of the results for the two types... (Complete abstract click electronic access below)

Estudo da existencia de polimorfos de diclofenacon de sódio em matérias primas provenientes de diferentes fornecedores

A qualidade dos medicamentos constitui um fator fundamental para assegurar a sua eficária terapêutica e minimizar a ocorrência de efeitos indesejados decorrentes de presença de impurezas, produtos de degradação e presença de diferentes estruturas cristalinas, também denominadas polimorfos. Este trabalho tem como objetivo avaliar a existência de polimorfos em matérias primas oferecidas por fornecedores distintos, um fármaco de uso comum no Brasil,– o diclofenaco de sódio – interpretados a partir de diferentes métodos de análise instrumentais. O polimorfismo de fármacos, um assunto bastante atual, tem grande impacto em estudos pré e pós-registro de medicamentos, do referência ao genérico, passando pelo similar. Assim, com o estudo feito em um antiinflamatório bastante popular e largamente utilizado no mercado, podemos visualizar a grandeza da importância da análise da existência de polimorfos em matérias primas

Estudo para correção dos sensores da rede de monitoramento do campo elétrico em função do campo elétrico de tempo bom

A monitoring network of atmospheric electric field covering the Vale do Paraiba region was implemented. The sensors were located on different sites with different altitude and geographic topology. The present work reports the study carried on those sensors in order to verify the necessity of using some correction factor to the measured local electric field intensity due to effects of local environment. The measurements were done in continuous 24 hours per day with the data recorded on registers in each device accumulating information during a period of four months. The relation between the electric field values by each sensor was compared to the reference located on Sao Jose dos Campos city using the same period. In a graphical analysis using the local field intensity and the reference, the data were fitted to a straight line obtained by minimum square method. Variation up to 95% was observed between the field values in some sensors. Another method was proposed, comparing the mean values of the electric field in a function of time. The variation in some sensors reached up to 133%. We conclude that the variations are due to local atmospheric conditions and no correction factor is required on the electric field sensors

Avaliação de cultivares de abacaxi submetidos a doses de npk

Pós-graduação em Agronomia (Horticultura) - FCA

Protocolos de natação em modelos experimentais com ratos

Exercise physiology has attempted to reproduce the experimental exercise in the laboratory using mainly rats. The swimming exercise has emerged as one of the leading research in these type ergometers. Thus, this research consisted of a literature review addressing the key issues which involve the exercise of swimming in the model rats. Training of aerobic and anaerobic swimming, evaluation models and models of periodization were the topics suggested in this research. In several studies, models of aerobic and anaerobic training have been proposed with the aim of studying their effect on normal and abnormal physiological parameters. However, earlier studies lacked methods of analysis aiming to determine the exercise intensity in the animal model. For this reason, in the last decade, assessment models have been adapted for humans to animals, especially rats. The maximal lactate steady state (MLSS) and lactate minimum (LM) are among the various techniques used to measure the amount of effort produced by swimming exercise in rats. Thereafter, based on biochemical parameters such as lactate, swimming exercise in rats has become the highest-rated, ie, using as reference the anaerobic threshold (AT). In another aspect, an entirely new line of research has tried to understand and promising swimming training in a periodized and its effects on some biochemical parameters. But this is an area little researched so far. Thus, the experimental model of swimming has proved an important resource of exercise physiology. From this model, it becomes possible to study the exercise, especially swimming, in more accurate, based on invasive and incisive analysis of the rat

Estudo da resistência à tração de cápsulas e troqueis metálicos cimentados, em função de alívio e retenção para o cimento

Pós-graduação em Odontologia Restauradora - ICT