994 resultados para taxa de concepção
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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As taxas de infestação de dípteros ectoparasitos de Chiropteros foram estudadas em cinco regiões do Estado de São Paulo, os aspectos ecológicos da relação hospedeiro/parasitas em Chiroptera são pouco explorados em relação aos ectoparasitos e carecem de mais informações. Tendo tais aspectos em vista os objetivos desse trabalho foram: (1) listar a composição da fauna de dípteros ectoparasitos associados aos morcegos filostomídeos; e (2) examinar se houve diferenças nos valores de prevalência e incidência nas diferentes áreas de estudo (relacionando tais fatores também ao sexo e idade do hospedeiro).. No presente estudo foram coletados 378 indivíduos de dez espécies de dípteros ectoparasitas, sendo setes delas pertencentes a família Streblidae, uma a família Nycteribiidae, e ainda duas espécies de ácaros pertencentes a família dos Spinturnicidae. As espécies de ectoparasitas mais abundantes foram Pararichobius longincrus (21,9%), Trichobius joblingi (17,4%) e Megistopoda proxima (33,7%). As análises estáticas parasitológicas foram feitas as espécies mais abundantes, calculou-se o valor da prevalência, taxa média de infestação, e os diferentes valores relativos ao status reprodutivo, sexo e idade do hospedeiro., as taxas de prevalência encontradas no presente estudo foram similares a estudos anteriores feitos na região de São Paulo e no geral houve uma tendência as taxas de infestação e prevalência serem maiores em jovens e fêmeas grávidas e lactantes. Apesar de tal constatação não é possível afirmar que haja uma correlação estatística entre hospediros mais jovens e fêmeas grávidas e maiores taxas de prevalência. O estudo ajuda a elucidar a composição faunística dos ectoparasitos de Chiropteros, e a esclarecer alguns aspectos da relação ecológica entre parasita hospedeiro
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Seed dispersal is a key process in the life cycle of plant species and may determine the dynamics of their populations. The passage of the fruit from the gastrointestinal tract brings effects on energy and nutritional rewards for the bird. The retention time of the seeds is an essential factor for the dispersion, affecting the dispersal distance. Some factors determine it, as the size of the bird, degree of frugivory, chemical composition of the fruit, the number and size of seeds. The study sought to characterize the Morus nigra seed retention time in three species of thrushes and compare them with other species of birds and plants. The blackberry, exotic species with socio-economic importance in Brazil, produces aggregate fruit having up to 60 seeds. Have been kept in captivity individuals leucomelas Turdus rufiventris thrush, thrush and amaurochalinus, native and omnivorous species, important dispersers in degraded areas, inhabiting the urban and the natural environment. In 274 samples of feces was recorded about 500 mulberry seeds. The first record of seeds was in 15 minutes (n = 2) and the last to 115 minutes (n = 4) after eating the fruit. The average time of gastrointestinal transit of seed for the three species was 52 minutes and 80% were defecated to 65 minutes post ingestion. Taking into consideration the type of fruit and the species of bird, there is great variation in the retention time when compared to other species of birds, being in general slower. That way, can be increase the degree of dispersion of the seed to more distant areas of the mother plant, increasing the chances of survival of seedlings, according to the hypothesis Janzen and Connell. The Turdus It showed efficient dispersers Morus nigra seeds, and inhabits natural and urbanized environment, the possibility of exchange of these seeds between environments by the action of thrushes
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Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The theory of generalized seduction is a proposal for a new foundation to psychoanalysis that promotes a crucial metapsychological repositioning to rescue the other's role in subjectivity constituyion. The aim of this paper is to present and to discuss the concept of sublimation in this reference, working difficulties and limitations of a strict notion in which the concept appears as a mere modification of the object and the target of sexual drive. It is intended to discuss the limitations of this conception in its task of articulation between the individual subjectivity and the cultural organization, indicating the proposal of Jean Laplanche for originary sublimation and neoformation of drive, as attempts to overcome some of these theoretical and conceptual impasses. We conclude that Laplanche´s proposal is insufficient to account for the limitations in the theories of drives and culture in psychoanalysis, therefore, that it is a problem still current and relevant in this field of studies.
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With the advancement of computer technology and the availability of technology computer aided design (CAD) errors in the designs are getting smaller. To this end the project aims to assess the reliability of the machine (CNC), which was designed by students of mechanical engineering college engineering - UNESP Bauru, by designing, modeling, simulation and machining an airfoil automotive. The profile template selected for the study will be a NACA 0012 machined plates in medium density fiberboard (MDF) and will be performed with a structural analysis simulation using finite elements and a software CFD (Computational Fluid Dynamics), and test the real scale model in a wind tunnel. The results obtained in the wind tunnel and CFD software will be compared to see the error in the machining process.
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The toothbrush is identified as one of the most importants inventions in human history. Most of them are made by polypropylene, a recyclable polymer. Some are made of polypropylene and polyethylene leftovers from others industrial processes. However, the toothbrushes are discarded incorrectly and end up in landfills, which could be avoided by using a material and design suitable for the manufacture of the product. This study aimed, based on research, develop and design a toothbrush model with great features. For the conception of the prototype, was used rapid prototyping technologies. With the intention of improving the product quality, was created an ergonomic, sustainable and environmentally friendly model, seeking maximally reduce the generation of waste and environmental damages. The solution adopted was the use of "interchangeable head", which can be discarded after their useful life, keeping the rest of the body.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Zootecnia - FCAV
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The real role of renal transplantation in hepatic fi brosis progression caused by hepatitis C virus is still unpredictable. Histological evaluation of the liver is the best form to estimate fi brosis evolution, although semiquantitative analysis carries important limitations. Objective: To apply a morphometric quantitative assay on hepatic fi brosis progression in renal recipients with hepatits C. Methods: Thirty patients were initially evaluated, but only seven were included. They underwent the fi rst biopsy near the transplantation date and the second biopsy at least 4 years later. The immunosuppressant therapy adopted in all cases was azatioprine and micofenolate. Fibrosis progression rate (FPR) was calculated before and after the surgery date in each patient according to Metavir score and morphometric analysis. Results: The FPR calculated by Metavir score showed no statistical difference between pre- and post-transplantation (p=0.9). The FPR calculated by the morphometric analysis was 0.58 ± 0.78 before transplantation and 3.0 ± 3.3 after the surgery, with statistical signi- fi cance between these values (p=0.0026). Conclusion: In the sample assessed, the progression of hepatic fi brosis was documented and quantifi ed only by the morphometric analysis, which is as a promising approach to histological evaluation of these patients.
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This work aimed to evaluate the pregnancy rate and follicular diameter using EB or GnRH on the insertion of progesterone implant (D0) in lactating beef cows. Two groups were tested in two experiments. In Exp. 1 were used 61 Nelore cows divided into two groups: G-BE (n = 32) and G-GnRH (n = 29), on D0 was inserted P4 implant (CIDR ) and applied 2 mL of BE (G-BE) or 2.5 mL GnRH (G-GnRH). In D9 was performed ultrasonography (U.S.) to measure the diameter of the dominant follicle (DF) present in the ovary and the implant was removed, with concomitant administration of 2.5 mL of PGF2a and estradiol cypionate (ECP ) followed by calves removal. After 48 hours all the cows were inseminated and the calves returned. In Exp. 2 50 cows were used following the same protocol described above, but the pregnancy was assessed without performing ovarian US. There was no difference (p>0.05) in pregnancy rate between treatments, BE (55%) or GnRH (41%), but the follicular diameter was significantly higher (p<0.05) in pregnant cows treated with EB (10.7 mm vs. 8.5 mm) and in cows treated with GnRH there was no difference (p>0.05) between pregnant and no pregnant cows (11.6 mm vs. 10.2 mm). We concluded the use of GnRH on D0 did not improve the pregnancy rate in lactating beef cows and follicular diameter was greater (p <0.05) in pregnant cows compared to non-pregnant only in G-BE.