Evaluation by Free Vibration Method of Moisture Absorption Effects in Polyamide/Carbon Fiber Laminates

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

Structural and dielectric properties of Ba0.5Sr0.5(SnxTi1-x)O-3 ceramics obtained by the soft chemical method

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Luminescence properties of Eu(3+)- and Mg(2+)-doped LiTaO(3) obtained via the polymeric precursor method

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

Synthesis of a functionalized europium complex and deposition of luminescent Langmuir-Blodgett (LB) films

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evolution of photoluminescence as a function of the structural order or disorder in CaMoO4 nanopowders

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação tardia da função renal em doentes com paracoccidioidomicose tratados com anfotericina B por meio da determinação do ritmo de filtração glomerular com EDTA Cr51

A late survey of the renal function was performed in eighteen patients with paracoccidioidomycosis treated with amphotericin B, according to the glomerular filtration rate (RFG). The method was compartment analysis by single injection using EDTA Cr51, determined by its 'half biological life' and dosages of blood urea nitrogen and creatinine. The patients were seventeen males and one female. They were from 22 to 76 years old. Ten of these patients received 2 g of amphotericin B and eight of them received 4 g. There were no expressive difference between the two groups, taking into account age, dose in mg/kg of weight/day, time of conclusion of the treatment, urea, creatinine, glomerular filtration was smaller than the normal, and average of the half biological life of the EDTA Cr51 was large than the normal. The achieved results permitted us to consider that the amphotericin B determines deficit of renal function. However, by the present study, it hasn't been possible to affirm if the modifications are definitive.

Efeito do período de fornecimento de ração semi-complexa na fase inicial, sobre o ganho de peso compensatório nas fases de crescimento e terminação

One hundred and twenty crossbred pigs (Large White x Landrace) weaned at an average age of 28 days, were used. Pigs were alloted to five dietary treatments according to weight, sex and litter as follows: T1- Simple diet (SD) during whole Starter phase (SP) (28-63 days); T2- Semi-complex diet (SCD) for the first seven days followed by a SD during 28 days of SP; T3- SCD for the first 14 days followed by SD during 21 days of SP; T4- SCD for the first 21 days followed by SD during 14 days of SP; T5- SCD during the entire SP. A completely randomized block design was used with six replications. At the end of the SP one castrated male and one female, weighing closest to the average live weight of the group, were transferred to growing-finishing pens and fed growing-finishing diets ad libitum until they reached approximately 90kg live weight. Increasing the period of feeding the semi-complex diet resulted in a linear increase in average daily feed intake and average daily gain during the first 28 days of the initial phase. However, when the entire initial phase was considered there was a linear increase only in daily feed intake. There were no differences in incidence and severity of diarrhea in SP or in the performance of pigs during the growing-finishing phases. There were was no differences in average daily gain among diets from weaning to 90 kg body weight. It was concluded that the advantage of the semi-complex starter diet tended to disappear as age increased.

Growth curves for Macrobrachium rosenbergii in semi-intensive culture in Brazil

Four 0.02-ha earthen ponds at the UNESP Aquaculture Center, Jaboticabal, São Paulo, Brazil, were stocked with newly metamorphosed Macrobrachium rosenbergii post-larvae at 1.5 animals/m2. After 8 mo, prawn density at harvest ranged from 0.3/ m2 to 0.8/m2. Growth curves were determined for each population using von Bertalanffy growth functions. Asymptotic maximum length and asymptotic maximum weight increased as final population size decreased indicating that a strong density effect on prawn growth occurs in semi-intensive culture, even when populational density varies within a small range of less than 1 animal/m2.

Exigências de energia metabolizável para frangas de postura de 1 a 18 semanas de idade

The trials were conduced to determine the energy requirements of growing pullets from 1 to 18 weeks of age,by means of the factorial method, using the comparative slaughter technique. The energy requirements for maintenance were determined utilizing the following feeding levels: ad libitum, 80% and 60% of ad libitum and sufficient for maintenance. Heat production was determined as a function of metabolizable energy intake (MEI) and the retained energy, which, when extrapolated to zero of ME intake, indicated net energy (NE) for maintenance of 63.6; 71.24 and 76.78 kcal/kg0.75/day, for the periods from 1 to 6, 7 to 12 and 13 to 18 weeks of age, respectively. ME requirements for maintenance were determined by ME intake regression as a function of the retained energy, which, when extrapolated to zero retained energy, resulted in 86.12; 98.95 and 116.24 kcal/kg0.75 per day for the periods from 1 to 6, 7 to 12 and 13 to 18 weeks of age, respectively. ME requirements for weight gain were determined through regression analysis of the energy present in the body as a function of body weight, obtained by means of weekly slaughtering during the period from 1 to 18 weeks old. The regression coefficients of energy present in the body as a function of the body weight were used for the determination of the NE requirements for gain. By taking into account the conversion efficiencies of ME to NE for gain, the requirements for weight gain were: 4.11, 5.78 and 7.32 kcal/g ME for the periods 1 to 6, 7 to 12, and 12 to 18 weeks of age, respectively.

Exigências de proteína para frangas de postura de 1 a 18 semanas de idade

The objective of this experiment was to determine the protein requirements for hen pullets from 1 to 18 weeks of age, by factorial method, using the nitrogen balance and the comparative slaughtering techniques. Protein requirements for maintenance, was obtained by the nitrogen balance technique using four diets with different protein levels (18,9, 4 and 2% of CP) aiming to obtain positive balance, next to zero and negative nitrogen balance. The endogenous nitrogen losses (0.2575 g of N/kg·75/day) was obtained by regression of nitrogen balance (NB) on ingestion nitrogen (IN). The requirements of nitrogen for maintenance was estimated by the intercept of axis X (0.3831 g of N/kg·75/day). The slope of the straight line still supplied the efficiency of N of the diet (67.21%). The regression coefficients of the equation represented the requirements of net nitrogen for weight gain. Considering the conversion efficiencies of nitrogen of the diet into nitrogen for weight gain, the requirements of nitrogen were determined for weight gain of .065, .087g and .090 g of N per gram of weight gain, for the phases 1 to 6, 7 to 12, and 13 to 18 weeks of age, respectively. Based on the results, three equations of prediction of the daily nitrogen requirements were fitted in function of live weight (LW in kg) and daily weight gain (G in g): 1 to 6 weeks N=.3831 x BW·75 + G .065, 7 to 12 weeks N=.3831 × BW·75 + G .087, and 13 to 18 weeks N=.3831 × BW·75 + G .090.

Efficacy, safety and tolerability of terbinafine for Tinea capitis in children: Brazilian multicentric study with daily oral tablets for 1, 2 and 4 weeks

Background: Tinea capitis is a common skin disease seen predominantly in children. The standard therapies for this disease are griseofulvin and ketoconazole. Nevertheless, these drugs have drawbacks in that they are only fungistatic and require treatment for at least 6 weeks. Previous studies with oral terbinafine for the treatment of Tinea capitis have shown that this agent is effective when given for 4 weeks, comparable to an 8-week regimen with griseofulvin. To date there is no data on the use of oral terbinafine in Brazilian children. Objectives: To assess the efficacy, safety and tolerability of oral terbinafine in short-term treatments (1-, 2- and 4-week treatment) of Tinea capitis in children. Patients and methods: One hundred and thirty-two children aged 1-14 years were enrolled in this study, but only 107 were considered for the final efficacy analysis. Diagnosis included clinical assessment and examination by Wood's light. Confirmation was obtained by direct microscopy and culture for fungus. Terbinafine dosage (125 or 250 mg/day) was adjusted according to patient weight. Efficacy was evaluated both by clinical and mycological assessment. Safety and tolerability variables included data on adverse reaction and clinical laboratory evaluations. Results: Mycological evaluation in the follow-up visit at week 12 showed negative direct microscopy and culture results in 48.6, 60.5 and 69.7% patients in groups 1-, 2- and 4-week, respectively (n.s.). At week 12, 84.8% patients in group 4-week achieved clinical cure with a significant difference compared to groups 1- and 2-week, 54.3 and 60.5%, respectively (P < 0.01). Adverse reactions were present in 4.8, 6.8 and 10.9% of patients in groups 1-, 2- and 4-week, respectively. Terbinafine was not associated with clinically relevant increases in liver function tests. Conclusions: Terbinafine is an effective, well tolerated and safe antifungal agent for the treatment of Tinea capitis m children. The shorter duration of treatment resulted in lower cure rates. However, it is important to note that depending on the severity of the disease, a 1-week-only treatment can also be effective in this indication.

Crescimento pré-natal do corpo e de alguns órgãos de Zebu mestiço coletados em matadouros de São Paulo

A total of 196 fetuses of crossbred Zebu between 106 to 246mm in length collected from a slaughterhouse in São Paulo, Brazil, and divided into groups of 10mm size differences intervals into 15 classes were measured and weighed. Liver, heart and lungs were also removed and weighed. In order to select the method of evaluation of growth several mathematical functions were applied. Among significant equations the monologarithmic function was selected. Furthermore, the fetuses in similar conditions of length and weight were compared with racially pure fetuses.

Investigation of New Ion Conducting Ormolytes Silica-Polypropyleneglycol

Two groups of hybrid organic-inorganic composites exhibiting ionic conduction properties, so called ORMOLYTES (organically modified electrolytes), have been prepared by the sol-gel process. The first group has been prepared from mixture of a lithium salt and 3-isocyanatopropyltriethoxysilane(IsoTrEOS),O,O′-bis(2-aminopropyl) polypropyleneglycol. These materials produce chemical bonds between the organic (polymer) and the inorganic (silica) phases. The second group has been prepared by an ultrasonic method from a mixture of tetraethoxysilane (TEOS), polypropyleneglycol and a lithium salt. The organic and inorganic phases are not chemically bonded in these samples. The Li+ ionic conductivity, σ, of all these materials has been studied by AC impedance spectroscopy up to 100°C. Values of σ up to 10-6 Ω-1·cm-1 have been found at room temperature. A systematic study of the effects of lithium concentration, polymer chain length and the polymer to silica weight ratio on σ shows that there is a strong dependence of σ on the preparation conditions. The dynamic properties of the Li+ ion and the polymer chains as a function of temperature between -100 and 120°C were studied using 7Li solid-state NMR measurements. The ionic conductivity of both families are compared and particular attention is paid to the nature of the bonds between the organic and inorganic components.

Induced variational method from supersymmetric quantum mechanics and the screened Coulomb potential

The formalism of supersymmetric quantum mechanics supplies a trial wave function to be used in the variational method. The screened Coulomb potential is analyzed within this approach. Numerical and exact results for energy eigenvalues are compared.

Is chronic hypoxemia in patients with chronic obstructive pulmonary disease associated with more marked nutritional deficiency?: A study of the fat-free mass evaluated by anthropometry and bioelectrical impedance methods

In order to determine wheter blood gases abnormalities, specially hypoxemia, are associated with more marked changes in fat-free mass in patients with chronic obstructive pulmonary disease (CPOD), nutritional assessment was performed on 16 normoxemic (PaO 2 > 55 mm Hg) and 16 hypoxemic (PaO 2 < 55 mm Hg) COPD patients in stable clinical condition. Body weight was expressed as percentage of the ideal body weight. Fat-free mass was estimated by anthropometry (FFM-Anthr) and by bioelectrical impedance (FFM- BI). Handgrip-strength was assessed as a measure of peripheral skeletal muscle strength. Patients were age-matched and presented similar degree of airway obstruction. Malnutrition, defined as body weight less than 90% of the ideal, was observed in 19% of the normoxemic patients and in 25% of the hypoxemic patients (p>0,05). FFM values in hypoxemic patients, estimated by both methods, were not different from those observed in normoxemic patients. No significant difference was observed on handgrip values between the two groups. No correlation was found between nutritional indices and pulmonary function and gases exchange parameters. FFM correlated positively with values of peripheral muscle function in normoxemic and hypoxemic patients. These data add further evidence to the hypothesis that hypoxemia is not a primary cause of the nutritional deficiency observed in COPD patients.