三种心肺复苏方式在心脏骤停院前急救中的运用分析

目的：探讨三种心肺复苏通气方式在心脏骤停（CA）的院前急救中的运用对比，提高自主循环恢复的成功率。方法：回顾分析从2006年1月～2008年12月现场抢救心脏骤停（CA）患者87例，根据现场条件采取标准心肺复苏（CPR）气管插管通气法、气囊-面罩通气法、口对口人工通气法三种通气方法在心脏骤停（CA）的院前急救中的自主循环恢复率（ROSC）。结果：气囊-面罩通气组自主循环恢复率（ROSC）高于气管插管组和口对口人工通气组。结论：在院前抢救心脏骤停（CA）时，气囊-面罩通气法可提供良好的肺通气换气作用，而气管插管组和口对口人工呼吸组因需要中止心脏胸外按压，对自主循环的恢复弊大利小。

南朝鲜中小企业政策及鼓励措施

南朝鲜对中小企业采取的一系列鼓励政策和措施。

科技情报部门开展咨询服务的方法与途径

随着市场经济的发展,各行业为广开生产门路,以“一业为主,面向社会,开展各种经营”已成为当前的热点,伴随而来的“咨询服务”工作在各条战线上也广泛地开展起来。科技情报咨询服务工作既是图书情报工作的归宿,又是检验图书情报工作的尺度。目前如何开展咨询服务呢?我认为首先应该明确咨询工作的任务、目的,然后才能寻求完成咨询的任务和达到咨询目的的方法和途径。就咨询工作的任务而言,是以文献为根据,通过个别解答的方式有针对性地向读者提供具体的文献。

1.3 μm emitting SrF2：Nd^3＋ nanoparticles for high contrast in vivo imaging in the second biological window

Novel approaches for high contrast, deep tissue, in vivo fluorescence biomedical imaging are based on infrared-emitting nanoparticles working in the so-called second biological window （1,000-1,400 nm）. This allows for the acquisition of high resolution, deep tissue images due to the partial transparency of tissues in this particular spectral range. In addition, the optical excitation with low energy （infrared） photons also leads to a drastic reduction in the contribution of autofluorescence to the in vivo image. Nevertheless, as is demonstrated here, working solely in this biological window does not ensure a complete removal of autofluorescence as the specimens diet shows a remarkable infrared fluorescence that extends up to 1,100 nm. In this work, we show how the 1,340 nm emission band of Nd3. ions embedded in SrF2 nanoparticles can be used to produce autofluorescence free, high contrast in vivo fluorescence images. It is also dem- onstrated that the complete removal of the food-related infrared autofluorescence is imperative for the development of reliable biodistribution studies.