968 resultados para Muito baixo peso


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The concern with infant mortality has been a priority in public policies, especially for Brazil to achieve the Millennium Development Goal number four: reducing child mortality by 75% by the year 2015. It is known that prematurity has an intimate relationship with mortality of children under one year and therefore it is necessary an effective intervention in risk factors linked to premature births. To evaluate the profile of mothers and newborn babies living in Botucatu-SP, in the period 2001 to 2009, focusing on prematurity. A quantitative study, retrospective, descriptive, epidemiological, from the Information System Newborn Alive. The prevalence of preterm births was 15.1%, and low birth weight 14.7%. Among infants, the Apgar score below 7 at 1 and at 5 minutes was 13.1% and 2.4% respectively. Considering the total of pregnant women studied, 20.3% were adolescents and 10.3% were aged 35 years or more and most (63.2%) had eight or more years of school approval. The profile of mothers of premature infants shows that 23.6% were teenagers, 14.1% had at least 35 years and 60.4% had at least primary education. With regard to premature deliveries, caesarean sections and 58.4% were between the total newborns, this type of delivery was achieved in 46.6% of cases. Prematurity was associated with an Apgar score below seven in the first and fifth minutes of life, presence of malformation and multiple pregnancy. Among maternal variables, prematurity was associated with extremes of maternal age, maternal education, history of stillbirth, primiparas, white and presence of the mother's partner. With regard to delivery was associated with cesarean section and outside the hospital. This study assessed maternal characteristics associated with prematurity and point out how relevant the pregnancies at the extremes of age and those that occur in women with low education level, indicating the interference... (Complete abstract click electronic access below)

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Chitosan is a natural biodegradable polymer with great potential for pharmaceutical applications due to its biocompatibility, high charge density , nontoxicity and mucoadhesion. Gel formation can be obtained by the interactions of chitosans with low molecular counterions such as polyphosphates, sulphates and crosslinking with glutaraldehyde. This gelling property of chitosan allows a wide range of applications such as coating of pharmaceuticals and food products, gel entrapment of biochemicals, whole cells, microorganisms and algae. One of its main applications is the synthesis of microspheres for coating of pharmaceuticals , magnetic particles an other substances. In such a way, we can build targeted drug delivery systems. In the present work, we applied the method of spraying and coagulation. The resulting microspheres, then, were characterized by optical microscopy

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In this work, air dielectric barrier discharge (DBD) operating at two different frequencies (60 Hz and 17 kHz) was used to improve surface properties of polypropylene (PP). The changes in surface hydrophilicity were investigated by contact angle measurements. The modifications in chemical composition of PP surface were studied by X-ray photoelectron spectroscopy (XPS) and Fourier-transformed infrared spectroscopy (FTIR). The PP roughness were analyzed before and after the DBD treatment using atomic force microscopy (AFM). In order to compare the results obtained at different frequencies, the analyses are presented as a function of the deposited energy density. The results show that both DBD treatments led to formation of low-molecular weight oxidized material (LMWOM). It tends to agglomerate into small mounts on the surface, as shown by AFM analyses. These structures are weakly bounded to the surface and can be easily removed by rinsing in polar solvents. After washing the DBD-treated samples, the PP partially recovers its original wetting characteristics. This suggests that oxidation also occurred at deeper and more permanent levels on the PP samples. Comparing both DBD treatments, the 17 kHz process was found to be more efficient in introducing oxygen groups to the PP surface

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Nowadays technological trend is based on finding materials that could support low weight with satisfactory mechanical properties and for this reason composite material became a very attractive topic in research projects all over the world. Due to its heterogenic properties, this type of material shows scatter in mechanical test results, especially in cyclic loading. Therefore it is important to predict its fatigue strength behaviour by statistic analysis, once fatigue causes approximately 90% of the failure in structural components. The present work aimed to investigate the fatigue behaviour of the Twill/Cycom 890 composite, which is carbon fiber reinforced with polymeric resin as matrix and manufactured via RTM process (Resin Transfer Molding). All samples were tested in different tensile level in triplicate in order to associate these values. The statistical analysis was conducted with Two-Parameter Weibull Distribution and then evaluated the fatigue life results for the composite. Weibull graphics were used to determine the scale and shape parameters. The S-N curve for the Twill/Cycom composite was drawn and indicated the number of cycles to occur the first damages in this material. The probability of failure was associated with material reliability, as shown in graphics for the different tensile levels and fatigue life. In addition, the laminate was evaluated by ultrasonic inspection showing a regular impregnation. The fractographic analysis conducted by SEM showed failure mechanisms for polymeric composites associated to cyclic loadings ... (Complete abstract click electronic access below)

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The weight of a vehicle has always been considered an extreme important factor, because it interferes in the performance, steering, consume, environmental impact, wear of components, among the others. Because of the new demand, consume reduction aim and gases emission increased the necessity to manufacture lighter vehicles, guaranteeing the complying with the gas emission international law. Besides the legal demand, the low weight will certainly be essential for the competitiveness for the next generation of vehicles. It is with this thinking the composite materials have been introduced in the automobilist industry, because those materials show an excellent relation of strength/weight, providing a reduction of consume and the increase of load capacity. Those factors justify the increase of interest of industry and the necessity of optimization of those materials and of their process. For this research, the field of application will be the Baja SAE Project, a project that is fully developed by engineering students, where they build a prototype single seat, off-road category, for use on hilly slopes with obstacle. This research aims to study two key components of the prototype are made of composite materials, analyzing all the processing. In addition, there is the analysis of the viability of this production parts to a Baja SAE vehicle, in order to increase their performance and reduce their weight without reducing the safety and robustness of the prototype. It was possible to achieve weight reduction of the steering subsystem with manufacturing the flywheel hybrid composite (carbon/glass) and the replacement of SAE 1010 steel by hybrid composite (carbon/aramid) in CVT box. The importance of this study is to obtain a good project for the vehicle of technical and scientific manner, contributing to the know-how to the team and providing a basis for optimization for upcoming projects

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A vaginose bacteriana (VB) é a alteração de flora vaginal mais freqüente em mulheres em idade fértil e se caracteriza pela substituição dos lactobacilos por outras espécies bacterianas. Inúmeras complicações ginecológicas e obstétricas estão associadas à VB, como a doença inflamatória pélvica, o aumento da vulnerabilidade à aquisição do HIV, a corioamnionite clínica e histológica e o baixo peso ao nascimento. Estudos recentes demonstraram que várias espécies até então raramente ou nunca isoladas em laboratório são associadas à VB. O Objetivo desse estudo foi avaliar a freqüência de isolamento de Atopobium vaginae, Leptotrichia sp. e Megasphaera sp. em gestantes com vaginose bacteriana. Foi realizado um estudo de corte transversal prospectivo. Foram incluídas no estudo 88 gestantes com diagnóstico de VB, atendidas no Centro de Saúde Escola da UNESP no período de janeiro a setembro de 2010. Durante o exame especular e utilizando-se zaragatoas estéreis, foram coletadas amostras da parede vaginal para a confecção dos esfregaços vaginais em lâminas. O exame a fresco foi utilizado para o diagnóstico de vaginite aeróbia, de acordo com os critérios descritos por Donders et al. (2002). Os esfregaços vaginais corados pelo método de Gram, foram utilizados para o diagnóstico de flora normal, intermediária e VB de acordo com os critérios de Nugent et al. (1991). Em seguida, 5 mL de solução fisiológica foi injetada com seringa estéril na parede vaginal posterior, e após homogeneização dessa solução com o auxílio de espátula, o conteúdo foi coletado. Os lavados vaginais coletados foram centrifugados e os pellets armazenados para posterior detecção de Atopobium vaginae, Leptotrichia sp. e Megasphaera sp. pela técnica de PCR em tempo real. Do total das 88 amostras de VB, 46 (52,3%) foram positivas para os 3 microrganismos pesquisados e apenas ...(Resumo completo, clicar acesso eletrônicos abaixo)

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Maternal smoking during pregnancy causes heart changes, impaired fetal growth, spontaneous abortion and low birth weight. Even in pregnant women exposed to cigarette smoke these changes can be observed. But the exercise is to answer the increased fetal weight, besides the improvement of cardiorespiratory fitness of the pregnant and the fetus. The objective of this study was to analyze the ventricular muscle of young rats subjected to passive smoking associated with aquatic exercise. For the experiments used 24 female rats were divided into: GC (control), GE (exercise protocol in the water), GF(exposed to cigarette smoke) and GEF (exercise protocol on water and exposed to cigarette smoke). On the same day was held the 1st session of the experimental phase of the protocol of exposure to cigarette smoke, which consisted of 30 minutes twice a day, six days a week for three weeks, followed by the first session of the swimming program... (Complete abstract click electronic access below)

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

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

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

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The present study emerged from discussions of the Grupo de Estudos e Pesquisas Pedagógicos em Ginástica (GEPPEGIN), from UNESP/RC, and had the intention to understand and analyze the existence and discussions on Body Image and Gymnasts in researches and publications over the last decade (2003-2013) in Brazil. Body image refers to the mental representation of the body, structured according to the world. It is known that cultural and social pressures have been imposing an ideal body model and generating consequences as body dissatisfaction. Therefore, this study aims discuss the body image of Artistic and Rhythmic gymnastics' athletes. The choice of these modalities is justified by the fact that they are directly related to body image, especially the issue of the necessity of low body weight, beyond the relationship of complex movements and the need of good body awareness (BERRY; HOWE, 2000; KERR et al., 2006). For the development of this qualitative research, a documentary survey were conducted over the last decade (2003-2013) on Body Image and Gymnasts, focusing on researches of strictosensu postgraduate programs, recognized by CAPES, and scientific papers published in journals indexed in Brazil and classified in Physical Education Qualis. For categorization of information related to the theme, was used the organization by the units of analysis proposed by Laville and Dionne (1999). Based on the studies analyzed, perceive a dissatisfaction with body image to most participants from all studies, being athlete or nonathlete. Vieira and colleagues (2009) assume that the body pattern required for performance on competitive Gymnastics is close to the aesthetics of slim body served as body pattern for girls/teenager

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB