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111.
112.
达娃  巴桑 《西藏科技》2006,(3):12-13
整体分离痕迹在案件中不常见到,也比较容易被忽视。本文仅以案件为例,简要介绍整体分离痕迹在案件侦破中的重大作用,以提高整体分离痕迹的利用率。  相似文献   
113.

Introduction

The educational program for health care personnel is important for reducing preanalytical errors and improving quality of laboratory test results. The aim of our study was to assess the level of knowledge on preanalytical phase in population of biomedicine students through a cross-sectional survey.

Materials and methods

A survey was sent to students on penultimate and final year of Faculty of Pharmacy and Biochemistry – study of medical biochemistry (FPB), Faculty of Veterinary Medicine (FVM) and School of Medicine (SM), University of Zagreb, Croatia, using the web tool SurveyMonkey. Survey was composed of demographics and 14 statements regarding the preanalytical phase of laboratory testing. Comparison of frequencies and proportions of correct answers was done with Fisher’s exact test and test of comparison of proportions, respectively.

Results

Study included 135 participants, median age 24 (23-40) years. Students from FPB had higher proportion of correct answers (86%) compared to students from other biomedical faculties 62%, P < 0.001. Students from FPB were more conscious of the importance of specimen mixing (P = 0.027), prevalence of preanalytical errors (P = 0.001), impact of hemolysis (P = 0.032) and lipemia interferences (P = 0.010), proper choice of anticoagulants (P = 0.001), transport conditions for ammonia sample (P < 0.001) and order of draw during blood specimen collection (P < 0.001), in comparison with students from SM and FVM.

Conclusions

Students from FPB are more conscious of the importance of preanalytical phase of testing in comparison with their colleagues from other biomedical faculties. No difference in knowledge between penultimate and final year of the same faculty was found.Key words: survey, education, preanalytical phase  相似文献   
114.
2005年12月16日,首都博物馆新馆试运行。从此,北京西长安街复兴门外延长线上矗立起一座气势恢弘、引人注目的文化殿堂。她凭借得天独厚的地缘优势,依靠精彩的展陈、丰富的内涵、完善的设施、先进。的技术、科学的管理和周到的服务,成为北京历史与文化的荟萃之地,成为全国人民以及海外朋友熟悉北京、了解中国、展望世界的瑰丽窗口。  相似文献   
115.
[目的/意义]表情符号是当下社交媒体信息交流中的重要元素,对其使用差异及不同语境下表情语义进行研究对非正式信息交流研究具有一定意义。[方法/过程]本文以微信群实际会话数据为数据来源,设计表情符号提取器获得微信群会话样本中表情符号使用数据,据此对用户信息交流中表情符号使用行为进行研究,重点关注不同类型微信群以及不同年龄阶段的微信用户表情符号的使用差异、表情符号在不同语境下的语义及使用规律等内容。[结果/结论]研究发现:在微信群信息交流过程中,不同类型微信群的消息类型结构存在较大差异;不同类型及不同年龄人群的表情符号使用行为存在较大差异;表情符号在不同的对话样本下呈现出不同的语义;微信群中表情符号的使用符合幂律分布规律,等等。  相似文献   
116.
[目的/意义] 从知识主体吸收知识的认知视角出发,研究科研创新网络中知识动态增长的演化规律以及影响机制,引入复杂网络理论,构建基于科研创新网络的知识增长过程模型。[方法/过程] 考虑科研创新网络中知识主体获取知识的空间结构和认知特征,基于对数透视法则将网络中实际的知识物理分布转换为知识主体自身的认知空间;在分析知识吸收过程中相关影响因素的基础上,深入理解知识动态增长的流动模式构建知识增长函数,并从效率和公平相匹配角度界定知识增长的绩效。[结果/结论] 科研创新网络中的知识增长绩效受网络结构随机化程度的影响呈现先下降后上升的趋势;知识主体具备适度的知识传播能力和吸收能力才能实现网络中最优的知识累积效应;主体获取知识的认知过程受对数法则的约束,且随着其认知半径的增大,网络的知识增长绩效越高。  相似文献   
117.
Saraç-Lesavre  Başak  Laurent  Brice 《Minerva》2019,57(2):239-260

The Fukushima accident was a crisis in Japan, and a crisis elsewhere. In Europe, the aftermath of Fukushima was a period of intense questioning, about how to ensure the safety of nuclear reactors, and how, at the same time, ensure the ability of the European Union to act as a consistent political actor in the face of potentially catastrophic risks. Using empirical material related to the post-Fukushima stress tests and the subsequent discussions about the European regulatory framework for nuclear safety, this paper shows that stress tests have provided a peculiar form of European intervention, restabilizing regulatory boundaries while extending the European gaze. It describes the overall operation thereby performed as the “normalization of the crisis” whereby the exceptional situation enters the realm of the normal functioning of the public administrations, and where the actions undertaken take the form of the legal norm.

  相似文献   
118.
超验主义自然思想以全新的视角认识和看待自然,认为自然是一个整体,具有生命、神性和价值,从而要求人发挥直觉和主动性,回归自然,融入自然,实现人与自然的和谐相处;由爱默生首倡的超验主义自然思想,经过梭罗、缪尔的继承与发展,逐渐从思想层面步入实践中,引发多次环境保护运动,直接推动了20世纪70年代美国环境史的兴起;超验主义为美国环境史的兴起提供思想渊源和社会基础,引领环境史早期的研究内容,启迪环境史研究的批判性思维;美国环境史舍弃超验主义神学自然观部分,继承其批判性思维及人与自然的思考,这一过程又反过来推动了美国环境史的发展.  相似文献   
119.
IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) serological tests have been suggested as an additional diagnostic tool in highly suspected cases with a negative molecular test and determination of seroprevalence in population. We compared the diagnostic performance of eight commercial serological assays for IgA, IgM, and IgG antibodies to the SARS-CoV-2 virus.Materials and methodsThe comparison study was performed on a total of 76 serum samples: 30 SARS-CoV-2 polymerase chain reaction (PCR)-negative and 46 SARS-CoV-2 PCR-positive patients with asymptomatic to severe disease and symptoms duration from 3-30 days. The study included: three rapid lateral flow immunochromatographic assays (LFIC), two enzyme-linked immunosorbent assays (ELISA), and three chemiluminescence immunoassays (CLIA).ResultsAgreement between IgM assays were minimal to moderate (kappa 0.26 to 0.63) and for IgG moderate to excellent (kappa 0.72 to 0.92). Sensitivities improved with > 10 days of symptoms and were: 30% to 89% for IgM; 89% to 100% for IgG; 96% for IgA; 100% for IgA/IgM combination; 96% for total antibodies. Overall specificities were: 90% to 100% for IgM; 85% to 100% for IgG; 90% for IgA; 70% for IgA/IgM combination; 100% for total antibodies. Diagnostic accuracy for IgG ELISA and CIA assays were excellent (AUC ≥ 0.90), without significant difference. IgA showed significantly better diagnostic accuracy than IgM (P < 0.001).ConclusionThere is high variability between IgM assays independently of the assay format, while IgG assays showed moderate to perfect agreement. The appropriate time for testing is crucial for the proper immunity investigation.  相似文献   
120.
Research in Higher Education - The original version of this article unfortunately contained a mistake in the acknowledgement section. Some of the vital information is missing in the published...  相似文献   
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