Participação das enfermeiras no processo de implantação de práticas obstétricas humanizadas na maternidade Alexander Fleming (1998-2004) Participación de las enfermeras en el proceso de implementación de prácticas de obstetricia humanizada en la maternidade Alexander Fleming (1998-2004) Participation of nurses in the process of implementation of obstetrical practices in the maternity humanized Alexander Fleming (1998-2004)

Estudo de natureza histórico-social cujo objetivo é analisar o processo de inserção das enfermeiras na assistência ao parto e as lutas dessas profissionais para implantar as práticas obstétricas humanizadas na Maternidade Alexander Fleming. Utilizou-se a história oral temática como método. As etapas da análise foram: ordenação, classificação e triangulação dos dados. Para sustentação da análise, utilizamos os conceitos de campo, habitus, poder simbólico e capital, de Pierre Bourdieu. Os resultados apontaram que a inserção das enfermeiras na assistência ao parto ocorreu mediante a lotação de recursos humanos para este projeto e de uma capacitação intensiva. Ao serem inseridas no centro obstétrico, as enfermeiras criaram um espaço próprio de atuação e elaboraram um protocolo assistencial. Concluímos que as estratégias de luta simbólica utilizadas pelas enfermeiras contribuíram para a conquista de espaços que as distinguiram no campo pelo desenvolvimento de práticas humanizadas que estavam de acordo com seu habitus.<br>Se trata de un estudio de carácter histórico y social cuya finalidad es analizar el proceso de inserción de las enfermeras en el momento de la entrega y la lucha de estos profesionales para implementar las prácticas obstétricas humanizadas en la Maternidade Alexander Fleming. El método utilizado fue la historia oral temática. Los pasos del análisis fueron: ordenación, clasificación y triangulación de los datos. Para sustentación del análisis se utilizó los conceptos de campo, habitus, poder simbólico y capital, de Pierre Bourdieu. Los resultados mostraron que la inclusión de las enfermeras en la atención del parto se produjo a través de la capacidad de recursos humanos para este proyecto y de un entrenamiento intensivo. Al ser insertado en el centro obstétrico, las enfermeras han creado su propio espacio para la acción y han desarrollado un protocolo de atención. Concluimos que las estrategias de lucha simbólica utilizadas por las enfermeras contribuyeron para la conquista de espacios que las distinguieron en el campo por el desarrollo de prácticas humanizadas que estaban en consonancia con su habitus.<br>The objective of this historical-social study is to analyze the battle strategies in the process of implementing humanized practice at the Alexander Fleming maternity. The method used was oral thematic history. The analysis was performed using data triangulation, by articulating the oral statements with the written documents. The foundations of the study are the theoretical notions of field, habitus, symbolic power, symbolic battle and capital of the sociologist Pierre Bourdieu. The results showed that the inclusion of nurses in delivery care occurred through human resource capacity for this project and an intensive training. By being inserted in the center obstetric nurses have created their own space for action and developed a protocol of care. Obstetrical nurses, by means of battle their strategies, have taken over areas and positions that distinguished them for the development of humanized practices that agree with their updated habitus

Quantifying potential benefits of drought and heat tolerance in rainy season sorghum for adapting to climate change

Maintaining high levels of productivity under climate change will require developing cultivars that are able to perform under varying drought and heat stresses and with maturities that match water availability. The CSM-CERES-Sorghum model was used to quantify the potential benefits of altering crop life cycle, enhancing yield potential traits, and incorporating drought and heat tolerance in the commonly grown cultivar types at two sites each in India (cv. CSV 15 at both Akola and Indore) and Mali (cv. CSM 335 at Samanko and cv. CSM 63E at Cinzana), West Africa. Under current climate CSV 15 on average matured in 108 days and produced 3790 kg ha−1 grain yield at Akola; whereas at Indore it matured in 115 days and produced 3540 kg ha−1 grain yield. Similarly under current climate, CSM 335 matured in 120 days and produced 2700 kg ha−1 grain yield at Samanko; whereas CSM 63E matured in 85 days at Cinzana and produced 2210 kg ha−1 grain yield. Decreasing crop life cycle duration of cultivars by 10% decreased yields at all the sites under both current and future climates. In contrast, increasing crop life cycle by 10% increased yields up to 12% at Akola, 9% at Indore, 8% at Samanko and 33% at Cinzana. Enhancing yield potential traits (radiation use efficiency, relative leaf size and partitioning of assimilates to the panicle each increased by 10%) in the longer cycle cultivars increased the yields by 11–18% at Akola, 17–19% at Indore, 10–12% at Samanko and 14–25% at Cinzana under current and future climates of the sites. Except for the Samanko site, yield gains were larger by incorporating drought tolerance than heat tolerance under the current climate. However, under future climates yield gains were higher by incorporating heat tolerance at Akola, Samanko and Cinzana, but not at Indore. Net benefits of incorporating both drought and heat tolerance increased yield up to 17% at Akola, 9% at Indore, 7% at Samanko and 16% at Cinzana under climate change. It is concluded that different combinations of traits will be needed to increase and sustain productivity of sorghum in current and future climates at these target sites and that the CSM-CERES-Sorghum model can be used to quantify benefits of incorporating certain traits

How curved membranes recruit amphipathic helices and protein anchoring motifs

Udgivelsesdato: 2009-NovLipids and several specialized proteins are thought to be able to sense the curvature of membranes (MC). Here we used quantitative fluorescence microscopy to measure curvature-selective binding of amphipathic motifs on single liposomes 50-700 nm in diameter. Our results revealed that sensing is predominantly mediated by a higher density of binding sites on curved membranes instead of higher affinity. We proposed a model based on curvature-induced defects in lipid packing that related these findings to lipid sorting and accurately predicted the existence of a new ubiquitous class of curvature sensors: membrane-anchored proteins. The fact that unrelated structural motifs such as alpha-helices and alkyl chains sense MC led us to propose that MC sensing is a generic property of curved membranes rather than a property of the anchoring molecules. We therefore anticipate that MC will promote the redistribution of proteins that are anchored in membranes through other types of hydrophobic moieties