Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid

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

The influence of temperature on oxygen consumption rates of workers of two leaf cutting ants, Atta laevigata (F. Smith, 1858) and Atta sexdens rubropilosa (Forel, 1908)

1. 1. The oxygen consumption in workers of two simpatric leaf cutting ants, Atta laevigata and Atta sexdens rubropilosa was measured at different temperatures. 2. 2. In the temperature range between 5-35°C, with 5°C increments, the respiratory rates increased with temperature, but the R-T curves of both ants showed neither a marked drop at the low end nor a break at the high end; except between 30 and 35°C. 3. 3. The respiratory rates of A. s. rubropilosa were higher than those of A. laevigata and in the midrange of temperatures, the rates of A. laevigata increased faster than those of A. s. rubropilosa. 4. 4. Q10 values did not indicate regions of compensation for temperature in both ants, but suggested that adjustments may occur at high temperatures (25-35°C), as expected for tropical ants. 5. 5. Temperature variations did not alter significantly the slope of the curve relating oxygen consumption and body weight in both species. © 1982.

Impact of obesity on autonomic modulation, heart rate and blood pressure in obese young people

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

In vivo evaluation of the antimutagenic and antigenotoxic effects of beta-glucan extracted from Saccharomyces cerevisiae in acute treatment with multiple doses

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A substituição do meio TCM pelo meio BARC, suplementado com SFB, BSA ou PVA, para maturação de oócitos bovinos in vitro, não incrementa a subsequente produção de blastocistos

This study was carried out to assess the influence of bovine embryo culture medium Beltsville Agriculture Research Center (BARC), supplemented with FCS, BSA or PVA, on the in vitro oocyte maturation, evidenced by cleavage rate and blastocysts production at different developmental stages. Three experiments were performed, as follows: exp.1: addition of FCS to BARC medium at concentrations of 0, 5 and 10%; exp. 2: addition of BSA to BARC medium at concentrations of 0, 4 and 8 mg/ml; exp. 3: addition of PVA to BARC medium at concentrations of 0, 0.5 and 1.0 mg/ml. TCM 199 supplemented with bicarbonate, pyruvate, gentamicin sulfate, FSH, LH and FCS was used as control group. Oocytes obtained from cow ovaries at slaughterhouse were selected in PBS, and then matured in BARC medium supplemented with FSH, LH and gentamicin sulfate, according to the experimental design. Percoll gradient was used for sperm selection and TALP medium for IVF. In vitro embryo culture was in SOF-m medium; a humidified atmosphere with 5% CO2, in air, at 38.7oC was used for all steps. The number of oocytes reaching blastocyst, expanded blastocyst, and hatched blastocyt stages was recorded, respectively at 72 and 168 h post-insemination. ANOVA and Bonferroni t test were used to determine differences among groups. Differences of P<0.05 were taken as significant. Higher percentage (P<0.05) of cleaved oocytes was observed in group TCM + FCS than for the other groups matured in BARC supplemented with FCS or BSA, regardless the concentration used. However, the cleavage rate was similar between groups BARC plus PVA with 1 mg/ml (85.7%) and TCM + FCS (90.8%). Significant difference was found among groups for the production of blastocysts, with the control group yielding a higher number of blastocysts (results ranging from 47.4 to 51.4%, in comparison with groups using BARC + FCS (4.1 to 19.7%), BSA (1.4 to 5.6%) and PVA (5.7 to 10.6%). In conclusion, BARC medium supplemented with different macromolecules did not promote a beneficial effect on in vitro oocyte maturation, resulting in lower rate of cleavage and blastocyst production when compared with TCM + FCS medium.

Interpretando reflexões de futuros professores de Física sobre sua prática profissional durante a formação inicial: a busca pela construção da autonomia docente

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A relação entre hospital e usuários na ótica da comunicação

This article evaluates the influence of culture and elements from organizational bonds in the perception of communicative process between a public teaching hospital and its users, and the strategies used to overcome difficulties in this dialogue. It was possible to evaluate how the dialogue is perceived in a scenario marked by organizational bonds such as identification, belonging feeling, idealization of the organization and solidarity.

Enquadramentos midiáticos e sua influência sobre a consolidação de direitos de crianças e adolescentes

This article brings a contribution to the comprehension of the path of recognizing the rights of children and adolescents in Brazil, in which there have been seen symbolic representations that often are created, modified or popularized by the media. Newspapers with the largest circulation in the state of São Paulo in a period after almost 20 year of the Statute of the Child and Adolescent (ECA) coming into force were investigated with framing analysis. Results suggest that the ECA faces obstacles to its consolidation, in the form of superficial and fragmented media coverage of events that should be contextualized in relation to public policies and their specific understanding of causes and possible solutions applicable.

Emergência de relações condicionais com sentenças afirmativas e negativas por sobreposição de palavras

A construção de sentenças envolve a produção de estruturas sintaticamente corretas e pode envolver produtividade de novas sentenças,a partir de recombinações de palavras diretamente ensinadas. O objetivo do estudo foi verificar o efeito do ensino de sequências de duas palavras com sobreposição sobre a emergência de sentenças afirmativas e negativas; posteriormente verificou o efeito do estabelecimento do controle condicional por cores sobre a leitura recombinativa generalizada de sentenças nas formas afirmativa e negativa. Participaram seis crianças com histórico de fracasso escolar, de ambos os sexos. Como estímulos foram adotadas seis sentenças de ensino (três afirmativas e três negativas) e quatro de generalização recombinativa (duas afirmativas e duas negativas), e respectivas sentenças ditadas e figuras. O procedimento consistiu nas fases de ensino de sentenças com sobreposição e testes de construção; fases de ensino de discriminações condicionais com a construção de sentenças afirmativas na presença da cor verde e negativas na presença da cor vermelha; testes de leitura recombinativa com oito novas sentenças; e testes de compreensão de leitura pela relação entre figura e sentença impressa. Nos testes de leitura recombinativa, quatro participantes construíram corretamente sete das oito novas sentenças e os demais, seis. Nos testes de compreensão I, quatro participantes obtiveram 100% e dois 80% de acerto. Nos testes de compreensão II, três crianças obtiveram desempenho de 100%, duas acima de 60% e uma 40%. Os resultados sugerem que o procedimento de ensino de sentenças por sobreposição de palavras foi eficiente no auxílio da aquisição de repertório verbal, relativo à construção de frases e leitura com compreensão de sentença nessa população.

Energy sources in the supplementation of beef cattle grazing Brachiaria brizantha cv. Xaraés

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

Capacidade de parasitismo de Trichogramma pretiosum em ovos de Trichoplusia ni em diferentes temperaturas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Hipertensão pulmonar em pacientes com doença renal crônica dialítica está associada com hipervolemia e inflação

Pós-graduação em Fisiopatologia em Clínica Médica - FMB