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41.
42.
《Planning》2014,(1)
以PubMed检索系统作为数据来源,采用共词聚类分析法对医院管理相关文献的主题词进行分析,旨在揭示国际医院管理研究领域的热点主题,为医院管理者制定管理策略提供依据、为国内学者和相关研究机构了解该领域的发展趋势提供参考。 相似文献
43.
Jose M. Juarez Tamara Riestra Manuel Campos Antonio Morales Jose Palma Roque Marin 《Expert systems with applications》2009,36(10):12214-12224
Medical knowledge representation and management is concerned with how to organise the often vague clinical experience of medical staff required for computable models. However, few knowledge management and acquisition tools have entered routine use, since such tools are not perceived by physicians as part of the clinical information process. An attempt to partially solve this problem, we identify two key aspects of knowledge representation and management tasks. The first is to adopt a medical knowledge standardisation to provide a consistent terminology control and to simplify the integration between knowledge management tools and the health information system. The second is to establish an effective knowledge acquisition process in specific medical fields by adapting knowledge acquisition tools. Therefore, the main goal of this work is to define computational models and to design mechanisms for the effective acquisition and management of medical knowledge in real-life hospital departments. To this end, we analyse the representation of medical knowledge (based on deep-causal models) and the development of knowledge management tools (based on ontologies), integrated within the information processing activities of the clinical user. Finally, we illustrate its applicability in the Intensive Care Unit and Pediatry scenarios. 相似文献
44.
Airworthiness certification is required when bonded repairs are made to primary composite structure in situations where damage has reduced or has the potential to reduce residual strength to below the design ultimate strength. Generally, certification of bonded primary structure poses many difficulties. As most repairs are one-off events meeting these certification requirements is especially challenging since demonstration by testing will generally not be possible or cost-effective. This paper discusses options for addressing the two key issues relating to certification: (a) how to validate initial and enduring bond strength of adhesive bonds, mainly given the inability of conventional non-destructive inspection to provide this assurance and (b) how to develop acceptable generic design allowables for bonded repairs which represent actual failure modes – especially for cyclic loading, since validation by testing of simulated repairs will generally be infeasible. It is concluded that proof testing of bonded repair coupons is a promising approach for validating bond strength and fatigue testing of representative bond joint specimen can provide generic allowables for patch design. For hidden structure or very high value repairs structural health monitoring of repairs based on a strain-transfer approach offers considerable promise. 相似文献
45.
In this paper, we propose a novel methodology to define and estimate a surrogate measure. By imposing a hypothetical disturbance to the leading vehicle, the following vehicle’s action is represented as a probabilistic causal model. After that, a tree is built to describe the eight possible conflict types under the model. The surrogate measure, named Aggregated Crash Index (ACI), is thus proposed to measure the crash risk. This index reflects the accommodability of freeway traffic state to a traffic disturbance. We further apply this measure to evaluate the crash risks in a freeway section of Pacific Motorway, Australia. The results show that the proposed indicator outperforms the three traditional crash surrogate measures (i.e., Time to Collision, Proportion of Stopping Distance, and Crash Potential Index) in representing rear-end crash risks. The applications of this measure are also discussed. 相似文献
46.
对广东省高职院校《体育与健康》课程田径类项目改革模式进行实验研究,以此了解新时期广东省高职院校《体育与健康》课程的改革现状,并对一些问题进行探讨,以期为我国高职院校《体育与健康》课程改革提供一定的参考。 相似文献
47.
48.
发酵乳的营养与保健作用 总被引:4,自引:0,他引:4
发酵乳,它是以乳或乳制品为主要原料,通过接种乳酸菌发酵后而制成.这种乳制品除含有丰富的蛋白质、糖类、矿物质及各种维生素外,还由于乳酸菌的作用,使乳中不易被人体消化吸收的乳糖变为乳酸,起到抑制肠道中有害微生物的生长繁殖、增进人体消化吸收的作用. 相似文献
49.
采用液相色谱仪—二极管阵列检测器-离子阱-飞行时间串联质谱仪(LCMS-DAD-IT-TOF)建立减肥类非法添加药物高分辨质谱数据库。样品经乙腈超声提取,提取液经QuEChERS吸附剂净化,以ZORBAX Eclipse AAA色谱柱(150mm×4.6 mm,4.5μm)分离,乙腈和0.1%乙酸为流动相梯度洗脱。筛查限为0.10~0.75 mg/kg,平均回收率在49.4%~88.1%;相对标准偏差为5.0~14.8%。该方法通过紫外光谱确定非法添加药物特征吸收波长,结合滥用药物高分辨质谱数据库,通过精确质量数的检索匹配对非法添加药物实现快速筛查,并使用保留时间、同位素丰度和多级特征碎片离子进行确证。根据多级碎片离子,推导出裂解途径。具有简便、快速、高效、准确等优点。在缺乏标准品或对照品的情况下,即可得到准确可靠的结论。适用于保健食品中非法添加药物的有效快速筛查。 相似文献
50.
随着物质生活的不断提高,人们越来越重视自己的身体健康,迫切渴望能更多地了解营养与健康的知识,传统教学方法已无法满足当今的教学要求。因此,营养与健康的教学内容需要不断补充和更新,现代教育技术运用于营养与健康的理论和实验教学,可显著地提高学生的学习效果,使学生在有限的时间内尽可能掌握更多的知识。 相似文献