Concentração s��rica de sulfato de magn��sio em gestantes com pr��-ecl��mpsia, submetidas aos esquemas de Zuspan e de Sibai

P��s-gradua����o em Ginecologia, Obstetr��cia e Mastologia - FMB

Fatores associados a qualidade do leite, higiene animal e concentração bacteriana na cama de vacas leiteiras confinadas no sistema de compostagem

P��s-gradua����o em Medicina Veterin��ria - FMVZ

Otimiza����o de procedimento para a determina����o de magan��s em amplo intervalo de concentração por espectrometria de absor����o at��mica em chama com fonte cont��nua e alta resolu����o

This work describes instrumental strategies for the determination of Mn in a wide range concentration by high-resolution continuum source flame atomic absorption spectrometry technique (HR-CS F AAS) by means of different atomic lines (primary at 279.482 nm, secondary at 403.075 nm and alternative at 209.250 nm). These lines provided complementary concentration intervals, and large sample dilutions became unnecessary. The proposed method was applied to tap water, metal alloy certified material and foliar fertilizer. Accuracy for secondary line were evaluated by tests of significance (t Student test) with reference materials from the Institute of Technological Research of S��o Paulo, and the results were in agreement at the 95% confidence level. For primary and alternative lines, recovery is were in the 84-116% range and the RSD were 6.1% for all wavelengths. Analytical curves in the 0.1 - 2.0 mg L-1 (279.482 nm), 2.0 - 25 mg L-1 (403.075 nm), 25 - 500 mg L-1 (209.250 nm) intervals were obtained with linear correlation coefficient better than 0.9991. The detection limits were 3.3x10-3 mg L-1 (279.482 nm), 7.4 x 10-3 mg L-1 (403.075 nm), 3.9 mg L- 1 (209.250 nm). The found Mn concentrations were < 3.3x10-3 mg L-1 (tap water), 1.00 �� 0.04 (% m/m) (alloy IPT 25), 7235 �� 175 mg L-1 (foliar fertilizer 1), 4990 �� 132 mg L-1 (foliar fertilizer 2). A method was developed to detect interference of Fe in the Mn primary line (279.482 nm) using the ratio of absorbances of other lines of the triplet (279.827 nm and 280,108 nm).

Caracteriza����o microestrutural e propriedades mec��nicas em pinos para transmiss��o mec��nica de a��o inoxid��vel martens��tico e pinos fus��veis de lat��o em chave de alta tensão

P��s-gradua����o em Engenharia Mec��nica - FEB

Implantes curtos do tipo cone-Morse: propor����o coroa-implante

The purpose of this study was to analyze the biomechanical interactions in bone tissue between short implants and implant-supported crowns with different heights. Two models were made using the programs InVesalius 3.0, Rhinoceros 4.0 and Solidworks 2010. The models were established from a bone block with the short implant (3.75 x 8.5 mm) with geometry Morse taper connection (MT). The height of the crown (cemented) was set at 10.0 mm and 15.00 mm. The models were processed by programs and 10 NEiNastran Femap 10.0. The force applied was 200N (vertical) and 100N (oblique). The results were plotted on maps Voltage Maximum Principal. Statistical analysis was performed using ANOVA. The results showed that the increase in crown height, increased stress concentration in the crown of 15 mm under oblique loading (p <0.001), the oblique loading has significantly expanded the area of stress concentration (p <0.001). Conclusion:the increase of the crown increased the stress concentration, being statistically significant for short implants Morse taper. The mesial and distal region had the highest concentration of stresses under oblique loading. The oblique loading was more harmful when compared with axial loading, being statistically significant.

Concentração de fl��or em ��guas envasadas: an��lise laboratorial e da legisla����o relacionada

Fluoridation of water for human consumption is a method of caries prevention that brings great social benefit, if kept at optimal levels. The increase in the production of bottled water emphasizes the need to verify whether fluoride presence in these waters occurs in sufficient quantity to prevent decay, or if it represents a significant risk of fluorosis. Objective: to compare the concentrations of fluoride present in bottled water to those declared on the labels, and to make a critical analysis of legal norms on the subject. Materials and method: this was a cross-sectional study, through which 22 samples of bottled water sold in state of Cear��, Brazil, were analyzed. Analyses were performed in duplicate by the electrometric method, and results were compared to those printed on the labels. Detailed searches by laws, resolutions, ordinances, and other official documents in force, related to the topic were performed. Results: the fluoride concentrations found ranged from 0.01 to 0.36 mgF/l. Although 72.7% of the samples were classified as fluoridated, the fluoride concentrations observed were shown to be insufficient for caries prevention. As for the rules, situations where they are not clear or even divergent were found. Conclusion: the current legislation on the subject requires updates to become more objective and to create new criteria on the use of the term ���fluoridated water���.

Avalia����o da sensibilidade �� insulina e concentração do cortisol salivar em gestantes com doen��a periodontal

P��s-gradua����o em Odontologia Preventiva e Social - FOA

Determina����o in situ de metilmerc��rio e merc��rio (II) em sistemas aqu��ticos nas proximidades de refinarias de petr��leo, utilizando a t��cnica difus��o em filmes finos por gradiente de concentração (DGT)

P��s-gradua����o em Geoci��ncias e Meio Ambiente - IGCE

An��lise das tens��es em pr��teses implantossuportadas esplintadas, variando o tipo de conex��o prot��tica e a inclina����o do implante: estudo pelo m��todo dos elementos finitos tridimensionais n��o linear

Funda����o de Amparo �� Pesquisa do Estado de S��o Paulo (FAPESP)

Propriedades de pasta e concentração de amido resistente em duas variedades de f��culas de ra��zes de mandioca em diferentes est��gios de desenvolvimento

The objective of this work was to analyze the profiles of the concentrations of resistant starch and respective properties of paste of two cassava varieties with different development stages. For the evaluation of the profile of the concentration of resistant starch and paste properties, the starches of the cassava varieties were used IAC 576/70 and F��cula Branca, which were collected with different times of cultivation (10, 11, 12, 13, 14 and 15 months), and the use of these times were according the crop of cassava variety IAC 576/70. For the analysis of paste property the apparel was used RVA and for analysis of resistant starch the enzymatic method was used. The results showed for the paste properties happened significant differences among the two varieties of cassava starch, and in some months they there wasn't differences, and as the results of resistant starch happened differences among the starches the months of July and August, and as for the different development stages only the starch of F��cula Branca that happened significant differences.

Determina����o do teor alco��lico de vodcas: uma abordagem multidisciplinar no ensino da f��sica, qu��mica e matem��tica

In this paper, it is proposed an experimental activity to be developed with high school students, addressing the concepts of density and surface tension from a multidisciplinary approach among Physics, Chemistry and Mathematics. In this proposal, students are challenged to determine the alcohol content of vodkas from intensive physical properties of liquids. Two calibration curves were obtained, one for density and another for surface tension as a function of ethanol concentration in water. The alcohol levels obtained from these properties were very close to the values given by manufacturers, due the similarity of these beverages with ethanol-water binary mixtures.

Controle flex��vel para conversores monof��sicos conectados a sistemas el��tricos distorcidos de baixa tensão

This paper presents a technique to add flexibility in the control of power electronic converters. The power converter can function as an active power filter, as a local power source interface or perform both functions i. e. mitigate current disturbances and inject power into the grid simultaneously, configuring it as a multifunctional device. The main goal is to extract the full capability of the grid connected power electronic converter to achieve maximum benefits. To achieve this goal, the orthogonal current decomposition of the Conservative Power Theory is used. Each orthogonal current component is weighted by means of different compensation factors (k_i), which are set instantaneously and independently, in any percentage by means of the load performance factors (&#955;_i), providing an online flexibility in relation to compensation objectives. Finally, to validate the effectiveness and performance the proposed approach, simulations and experimental results are presented.

Uma po��tica da tensão: as conflituosas faces na modernidade em ��lvaro de Campos

Coordena����o de Aperfei��oamento de Pessoal de N��vel Superior (CAPES)

Avalia����o de um pulverizador e volume ultra baixo e de adjuvantes em caldas fitossanit��rias na cultura dos citros

P��s-gradua����o em Agronomia (Produ����o Vegetal) - FCAV