Removable Partial Dentures: Use of Rapid Prototyping

The CAD/CAM technology associated with rapid prototyping (RP) is already widely used in the fabrication of all-ceramic fixed prostheses and in the biomedical area; however, the use of this technology for the manufacture of metal frames for removable dentures is new. This work reports the results of a literature review conducted on the use of CAD/CAM and RP in the manufacture of removable partial dentures.

Manejo da adubação com sulfato de amônio no desempenho produtivo do milho cultivado após aveia e trigo

The time, dose and applied nutrients in corn have a direct effect on its productivity. Therefore, the objective was to study the application of N and S in corn as ammonium sulfate, in succession to wheat and oats and evaluate different forms of fertilizer management. The experiment was conducted in a randomized block design in Oxisol (Hapludox). The five treatments with N, at a dose of 120 kg ha(-1) were applied in 20 plots (5x4), according to the management of fertilizer: T1-N (120 kg ha(-1)) full at sowing, T2-N (120 kg ha(-1)) total coverage; T3-N (40 kg ha(-1)) at sowing and N (80 kg ha(-1)) in coverage; T4-N advance in wheat sowing and sowing oats (120 kg ha(-1)), T5-(control). The S doses were corresponding to their concentrations in the fertilizer. Only wheat received a dose of 24 kg N ha(-1) at sowing all plots and oats received 24 kg N ha(-1) at sowing only the portions related to treatment with anticipation of corn N (T4). We evaluated the biomass production of winter crops (oats and wheat), according to the fertilization at sowing, and also the influence of winter crops and management of ammonium sulfate, the corn yield. The oats produced more dry matter in relation to wheat, positively influencing the corn yield, regardless of fertilizer management. The anticipation of ammonium sulfate, the sowing of oats, was favorable to corn yield, equating to other forms of management of fertilizer. Rotation corn and oats, forms management, ammonium sulphate, at seeding, topdressing or applied in split were equally efficient in corn yields.

Perfil epidemiológico de parturientes submetidas à cesariana na maternidade de um hospital escola de Botucatu-SP

During the pregnancy process, the maternal organism commonly undergoes changes. Such changes follow the normal course of pregnancy; however, some maternal or fetal factors can interfere with pregnancy and adversely affect its outcomes, thus triggering what is referred to as high-risk pregnancy, which is responsible for increasing maternal, fetal or newborns’ morbimortality rates1,2. One of the obstetric alternatives for a safe resolution of this pregnancy type is the caesarean section. Nevertheless, an expressive increase in the number of caesarean sections has been observed worldwide, and they are, many times, unnecessarily indicated8. The world Health Organization (WHO) recommends that the total number of caesarean sections in relation to the total number of deliveries performed at health service should be a maximum of 15% 11, a limit that is easily surpassed in various services. To outline the epidemiological profile of pregnant women submitted to caesarean sections at a reference health care service in the city of Botucatu-SP. This is a cross-sectional, retrospective, exploratory, descriptive, quantitative study. The target population consisted of one hundred pregnant women assisted in this institution, who had been submitted to caesarean sections in 2010 and were randomly selected to compose the sample. In the analyzed period, there were 1,189 deliveries, of which 601 (50.5%) were natural deliveries, 588 (49.4%) were caesarean sections. As regards maternal age, 76% were in the age range of 19 to 36 years. A high percentage of patients (27%) had not completed elementary education and did not have a paid job; 67% were homemakers. Most of the participants were married (56%); 34% of the women were primiparas, but 19% were in their fourth or more pregnancies. Concerning prenatal care, little was found, since many of them had consultations out of the institution which were not recorded... (Complete abstract click electronic access below)

Implicações da Escola de Física CERN para a prática pedagógica de professores

Para que a inserção de conteúdos de Física Moderna e Contemporânea ocorra de maneira eficiente no ensino médio é necessária a atualização dos professores. Assim, desde 2010 a SBF realiza a Escola de Física CERN, na qual participam professores brasileiros de física. Perante isso, investigamos as contribuições desta escola para a prática pedagógica dos professores. Os resultados mostram que o ensino de partículas é realizado de maneira muito incipiente, justificado pelo fato do currículo ainda ser clássico, pela falta de tempo ou pela cobrança dos exames avaliativos. Ao mesmo tempo em que os professores mencionam abordar a física de partículas, eles relatam que assuntos de física moderna e contemporânea não fazem parte do currículo de suas escolas. Concluímos que alguns professores não ensinam a física de partículas ou o abordam mesmo que ele não faça parte da grade curricular.

Ce0.97Cu0.03O2 Nanocatalysts Synthesized via Microwave-assisted Hydrothermal Method: Characterization and CO-PROX Catalytic Efficiency

In the work presented here, Ce0.97Cu0.03O2 nanoparticles were synthesized by a microwave-assisted hydrothermal method under different synthesis temperatures. The obtained nanoparticles were tested as catalysts in preferential oxidation of CO to obtain CO-free H2 (PROX reaction). The samples were characterized by X-ray diffraction, transmission electron microscopy (TEM), electron paramagnetic resonance spectroscopy (EPR) and temperature-programmed reduction (TPR). X-ray diffraction measurements detected the presence of pure cubic CeO2 for all synthesized samples. TEM images of the Ce0.97Cu0.03O2 nanoparticles revealed that samples synthesized at 80°C are composed mainly of nanospheres with an average size of 20 nm. The formation of some nanorods with an average diameter of 8 nm and 40 nm in length, and the size reduction of the nanoparticles from 20 to approximately 15 nm is observed with increasing synthesis temperature. EPR spectra indicated that copper is found well dispersed in sample synthesized at 160°C, located predominant in surface sites of ceria. For samples synthesized at 80 and 120°C, the species are less dispersed than in the other one, resulting in the formation of Cu2+−Cu2+ dimmers at the surface of ceria. TPR profiles presented two reduction peaks, one below 400°C attributed to the reduction of different copper species and a second peak around 800°C attributed to the reduction of Ce4+→ Ce3+ species located in the volume of the nanoparticles. The peak related to the reduction of copper species shifts to lower temperatures with increasing synthesis temperature, i.e., the sample synthesized at 160°C is more easily reduced than the ones synthesized at 120 and 80°C. The nanoparticles showed active as catalysts for the CO-PROX reaction. The microwave-assisted method revealed efficient for the synthesis of Ce0.97Cu0.03O2 nanoparticles with copper species selective for the CO-PROX reaction, which reaches CO conversions up to 92% for the sample synthesized at 160°C.

Considerações sobre a não-realização da vogal epentética em corpus poético do Português Arcaico

This study has as main aim to discuss the motivation for the non-occurrence of epenthetic vowel at the beginning of the word in the context of word junction in the first hundred Cantigas de Santa Maria (CSM – Afonso X, 1221-1284). Through this work and from a non-explored corpus (especially as for linguistic themes - SNOW, 1987, p. 478-480; MASSINI-CAGLIARI, 2005, p. 24-26), we intended to contribute to reaching a deeper knowledge of Portuguese prosody history in the period of its recognition as an “independent” language in relation to Latin.

A class of cubic Rauzy fractals

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Substituição do milho pela glicerina em suplementos múltiplos para novilhos Nelore em pastejo

The objective was to evaluate the performance and production costs of Nellore steers growing on Brachiaria brizantha cv. Marandu during the dry season receiving mineral supplements with partial replacement of corn by residual glycerin. 40 Nellore steers with initial body weight of 203.12 +/- 20.10 kg and average initial age of 12 months, distributed into eight paddocks of 1.6 ha each, were used. The experimental design was completely randomized with five replicates and eight supplements. Supplements with levels of partial replacement of corn by glycerin were evaluated: 0% (G0), 10% (G10), 20% (G20), 30% (G30), 40% (G40), 50% (G50) and 60% (G60) provided on the amount of 1 kg/animal/day in the natural matter, and a mineral supplement (MS). The average daily gain (ADG) was higher (P<0.05) in animals receiving supplements G30 (0.609 kg), G40 (0.588 kg) and G60 (0.611 kg) in relation to supplements G0 (0.546 kg), G10 (0.509 kg), G50 (0.561 kg) and MS (0.223 kg). There were differences (P <0.10) in ADG in supplemented animals when compared to MS. The supplemented animals showed higher ADG (P<0.05) compared to MS. The different levels provided positive financial return. It is concluded that the supply of multiple supplements replacing the corn by glycerol in production systems of steers in the dry period provides higher productive performance levels of 30, 40 and 60% and positive financial return to levels of 60% of replacement, demonstrating thus, its potential use for intensive systems of beef production on pasture.

Nível de atividade física e qualidade de vida em aposentados residentes no município de Rio Claro - SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uma nova estratégia na determinação de macroelementos :'K', 'Ca', e 'Mg em plantas medicinais empregando espectrometria de absorção atômica com fonte contínua e alta resolução

A simple and fast method to determine Ca, K and Mg in a single aliquot of medicinal plants by HR-CS FAAS is proposed. The secondary lines for Ca (239.856 nm) and K (404.414 nm), and the alternate line measured at wing of the secondary line for Mg at (202.588 nm) allowed calibration within the 20 - 500 mg.L-1 Ca and K, and 1.0 - 80 mg.L-1 Mg. Twenty samples and three plant certified materials were analyzed. Results were in agreement at a 95% confidence level with reference values. Limits of detection were 2.4 mg.L-1 Ca, 1.9 mg.L-1 K and 0.3 mg.L-1 Mg. The RSD (n=12) were ≤ 5.1% and recoveries were between 83 and 108% for all analytes.

Nutritional and metabolic risk factors for insulin resistance in adults

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