力学所建成高能冲击磁控溅射装备系统并开放服务

表面工程提高材料摩擦磨损、耐腐蚀性能的同时,还赋予材料新的表面功能,为解决人类发展中遇到的资源、能源等问题起到了不可替代的重要作用.作为表面工程领域的重要分支,我国亟需提升物理气相沉积(PVD)的技术能力.在中国科学院装备研制项目的支持下,力学所先进制造工艺力学重点实验室镀层工艺力学与摩擦学

Whole transcriptome organisation in the dehydrated supraoptic nucleus

The supraoptic nucleus (SON) is part of the central osmotic circuitry that synthesises the hormone vasopressin (Avp) and transports it to terminals in the posterior lobe of the pituitary. Following osmotic stress such as dehydration, this tissue undergoes morphological, electrical and transcriptional changes to facilitate the appropriate regulation and release of Avp into the circulation where it conserves water at the level of the kidney. Here, the organisation of the whole transcriptome following dehydration is modelled to fit Zipf's law, a natural power law that holds true for all natural languages, that states if the frequency of word usage is plotted against its rank, then the log linear regression of this is -1. We have applied this model to our previously published euhydrated and dehydrated SON data to observe this trend and how it changes following dehydration. In accordance with other studies, our whole transcriptome data fit well with this model in the euhydrated SON microarrays, but interestingly, fit better in the dehydrated arrays. This trend was observed in a subset of differentially regulated genes and also following network reconstruction using a third-party database that mines public data. We make use of language as a metaphor that helps us philosophise about the role of the whole transcriptome in providing a suitable environment for the delivery of Avp following a survival threat like dehydration

The interconnections between maternal and newborn health--evidence and implications for policy

The past decade has witnessed increasing global attention and political support for maternal, newborn and child health. Despite this increased attention, actual progress has been slow and sporadic: coverage of key maternal and newborn health interventions remains low and there are wide disparities in access to care, within and across countries. Strategies for improving maternal and newborn health are closely linked, and can be delivered most effectively through a continuum of care approach. While these interventions are largely known, there is little information on which interventions have a positive health impact for both women and newborns. This supplement identifies the interventions during the preconception, pregnancy, intrapartum and postnatal periods found to have a positive, synergistic effect on maternal and neonatal outcomes. These interventions are then grouped into packages of care for delivery at the community, health center or hospital levels