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2.
翟晓敏 《情报杂志》1994,13(6):49-52
论述了相关理论在军事情报分析中的意义、相关关系的类型和应用方式,以及相关分析的优势和特点。认为相关理论是情报意识、情报思维和情报研究方法的基础,是沟通三者的桥梁,相关法特别适用于军事情报研究。  相似文献   

3.
遥感技术在我国洪涝灾害监测评估中的作用   总被引:4,自引:0,他引:4  
文章阐述了遥感技术在我国洪涝灾害监测评估中的作用,并用监测结果分析了我国洪涝灾害多发区防洪减灾存在的问题,提出了防洪减灾建议和今后应进一步研究的内容。  相似文献   

4.
一直以来,状态检修和状态监测都是电力检修管理工作中的重点内容,而对于继电保护状态检修及状态监测更是现代检修技术改革的转折点。在实际的应用过程中,其能够对设备的运行状况进行实时的检测,以此来提高检修工作的效率与质量。并且,在电网系统的运行中,继电保护中的状态检修也占据了至关重要的地位,对于整个电力系统的安全稳定运行有着关键性的影响。但是,其中还存在的一些技术难点问题还没有得到很好的解决,应当引起电力部门的高度重视。因此,笔者就对继电保护状态检修及状态监测进行了思考讨论,并总结了一些有效的改善对策。  相似文献   

5.
本文仅从地理信息系统技术即GIS在资源环境、防灾减灾等方面的应用,来阐述GIS在监测地理国情中发挥的重要作用。  相似文献   

6.
随着我国电力工程的快速发展,为了保证我国地方电网的安全稳定运行,必须要对电压监测进行有效的管理。在电网运行过程中对电压监测仪的使用和运行情况进行全面的分析,并全面分析电压监测管理在地方电网中的作用,提出相应的管理措施,以此提高电压监测管理水平,保证电网安全稳定运行。  相似文献   

7.
文章介绍了兴安盟水土流失的概况、历史及目前兴安盟水土保持监测工作的开展状况,针对存在的问题,提出了相应的解决办法,为全盟大规模的水土保持综合治理做好水土保持监测工作,指出了努力的方向。  相似文献   

8.
江春 《西藏科技》2007,(2):55-58
本文从我国环境问题的现状及原因分析生态环境综合监测和信息服务工作重大意义、建立生态环境综合监测和信息服务体系的紧迫性以及生态西藏建设的迫切要求等方面入手,指出西藏气象部门具有合理分布的观测站网、业务规范化、信息加工处理、信息传输、信息服务以及生态环境的宏观动态遥感监测等6个方面优势。结合西藏气象部门特点,较全面地论述了气象部门在西藏生态环境监测和应用服务中的作用。  相似文献   

9.
目的 探讨护理管理在门诊医院感染控制中的作用.方法 选取我院2010年9月至2011年2月的门诊患者3600例为研究对象(观察组),对该组患者加强护理管理,另选取我院2007年9月~2008年4月收治的门诊患者3600例为研究对象(对照组),实施常规管理,比较两组患者的院内感染率、护理质量满意度和医患纠纷的发生率.结果 观察组的院内感染率、医患纠纷的发生率显著低于对照组,P<0.05,护理质量满意率显著高于对照组,P<0.05.结论 加强护理管理有利于控制门诊感染,提高护理质量,确保医患安全.  相似文献   

10.
突发关键词监测是发现相对增长率突然增加的关键词,目的是为了探测主题领域中的潜在热点因素。文章提出了加权中值相关和半阈值策略的突发关键词监测方法,并将其应用于"虚拟教育社区"研究主题的突发关键词监测;最后利用统计检验法和平均准确率、满意度验证了该监测方法的有效性。  相似文献   

11.
    
The internalization of apoptotic cells by non-phagocytic cells has been observed in different tissues and could be an important mechanism for the elimination of dying cells. Here, we describe a probable event of phagocytosis of apoptotic cells mediated by urothelial cells in urinary sediment. A 90-years-old male patient was admitted unconscious to the hospital, visible signs included: pale skin and dry mucous membranes, presumptively diagnosed as dehydration. Blood test revealed anaemia (haemoglobin 130 g/L) and hyperglycaemia (glucose 7.8 mmol/L), urinalysis showed a picture of urinary tract infection (leukocyturia and bacteriuria). The microscopic analysis of urinary sediment revealed the presence of urothelial cells and leukocytes internalized in urothelial cells. Anti-CD68 (membrane marker of macrophages) was tested by immunocytochemistry and a negative result was observed. Based on the findings phagocytosis of apoptotic cells mediated by urothelial cells was identified. This phenomenon can be observed in urinary sediment and should not be confused with a neoplastic process since it is a physiological event of cell elimination.  相似文献   

12.

Introduction

Urinary tract infection (UTI) is one of the most common types of infection. Currently, diagnosis is primarily based on microbiologic culture, which is time- and labor-consuming. The aim of this study was to assess the diagnostic accuracy of urinalysis results from UriSed (77 Electronica, Budapest, Hungary), an automated microscopic image-based sediment analyzer, in predicting positive urine cultures.

Materials and methods:

We examined a total of 384 urine specimens from hospitalized patients and outpatients attending our hospital on the same day for urinalysis, dipstick tests and semi-quantitative urine culture. The urinalysis results were compared with those of conventional semi-quantitative urine culture.

Results:

Of 384 urinary specimens, 68 were positive for bacteriuria by culture, and were thus considered true positives. Comparison of these results with those obtained from the UriSed analyzer indicated that the analyzer had a specificity of 91.1%, a sensitivity of 47.0%, a positive predictive value (PPV) of 53.3% (95% confidence interval (CI) = 40.8–65.3), and a negative predictive value (NPV) of 88.8% (95% Cl = 85.0–91.8%). The accuracy was 83.3% when the urine leukocyte parameter was used, 76.8% when bacteriuria analysis of urinary sediment was used, and 85.1% when the bacteriuria and leukocyturia parameters were combined. The presence of nitrite was the best indicator of culture positivity (99.3% specificity) but had a negative likelihood ratio of 0.7, indicating that it was not a reliable clinical test.

Conclusions:

Although the specificity of the UriSed analyzer was within acceptable limits, the sensitivity value was low. Thus, UriSed urinalysis results do not accurately predict the outcome of culture.  相似文献   

13.
当前,高校学生资助在取得巨大成就的同时,也存在资助系统兼容性不高、贫困证明存在舞弊空间、资助方式缺乏人文关怀等问题与不足,直接或间接导致资助精准度不高、影响资助的公平公正;因此,如何有效精准认定、准确资助隐形贫困,如何有效核查、及时取缔虚假贫困,如何使国家高校学生资助的顶层设计精准"落地",是当前和今后一个时期做好高校学生资助工作的大逻辑。充分而恰当利用大数据技术,打造资源共享、精准认定资助新模式,构建以人为本、量身定制的差异化资助新方式,建立实时动态、及时完善的管理思路,对提高高校资助精准水平、实现高校资助公平公正具有重要意义。  相似文献   

14.
目前,农村留守儿童的教育问题是一个尚未被攻破的难题。为了更好地解决江西修水农村留守儿童教育问题,文章从精准扶贫的角度出发,考察了留守儿童的教育现状,结合心理学分析了教育问题,并从精准扶贫的角度对问题的解决提出了若干建议,以期为有效解决农村留守儿童教育问题提供参考依据。  相似文献   

15.
Lactoferrin, an iron-binding protein, has been proposed to act as an anti-infective agent and has been used as a diagnostic marker in several inflammatory disorders. A sensitive enzyme-linked immunosorbent assay developed earlier was used for lactoferrin estimation in cervical mucus. A brief study was undertaken to observe if lactoferrin is detectable in cervical mucus and to correlate its level with reproductive tract infection, if present. One hundred and twelve cervical mucus samples were collected from healthy as well as infected females. Some of these females were using CuT-200 intrauterine copper devices for contraception. Women were at different phases of their menstrual cycle. The presence of detectable amount of lactoferrin in cervical mucus was confirmed. The average level of lactoferrin in cases either with clinical symptoms of cervicitis or with proven infection by PAP smear was significantly (t=7.6, P<0.01) higher than the normal controls. CuT users have higher (P<0.01) mean level of lactoferrin than corresponding non-users.  相似文献   

16.
孟兰 《科教文汇》2021,(11):18-19
在高校资助体系中,精准资助与资助育人是实现教育公平的重要举措,二者相辅相成。精准资助是资助育人的基础保障,资助育人是精准资助的深入发展。针对当前高校精准资助育人工作在“三观”“三力”等方面的育人问题,文章以高校辅导员为出发点,提出精准资助育人工作的实施路径:一是提升专业素质,大力建设资助工作队伍;二是创新帮扶理念,积极探索长效宣传模式;三是深入社区生活,高度重视心理发展动态;四是开拓实践平台,精心打造特色服务品牌;五是统筹各方合力,着力构建多元育人体系。  相似文献   

17.
At the most mundane level, CCTV observes bodies, and as such attaches great importance to the specific features of the human body. At the same time, however, bodies tend to disappear, as they are represented electronically by the camera monitors and, in the case of image recording, by the computer systems processing data. The roles of bodies(either as targets of surveillance or as translations into flows of disembodied information), however, are not unimportant or inconsequential, but may in fact give rise to a number of tangible ethical dilemmas. Firstly, the virtual representation of the embodied actor is not a neutral, unproblematic process. Body representation techniques such as CCTV produce constructions of the subject that involve judgmental, discriminatory processes of categorisation and are based on asymmetrical relations between observers and observed. Secondly, the `data doubles' are not inconsequential: the representations of the body produced by CCTV can have palpable consequences for the embodied self and its life chances. The widespread use of CCTV could therefore give rise to individual as well as social issues, and possibly in a different manner than previous surveillance technologies. This fact signals the need for(re-)conceptualisations of moral values (such as privacy) applicable to the case of CCTV which take into account the importance of bodily protections. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

18.
A team of researchers at the Shanghai Institutes for Biological Sciences (SIBS), CAS reported Oct .19 online in Nature the successful identificationof a long sought-after type of stem cells, the multipotent mammary stem cells (MaSCs) in mouse mammary gland, through a surface marker specifically expressed by this type of stem cells. This discovery settles a raging debate on the existence of multipotent MaSCs that can differentiate into all types of mammary epithelial cells, and moreover provides an ideal target for new drugs against breast cancers, especially a subtype that responds to no existing targeted therapy.  相似文献   

19.
Serum levels of leucine amino peptidase (LAP) was studied along with bilirubin, aspartate transaminase (AST), alanine transaminase (ALT), gamma glutamyl transpeptidase (GGT), alkaline phosphatase (ALP) and the ratio of AST/ALT and GGT/AST in 25 healthy subjects and 52 patients with hepatobiliary malignancies of which 12 were with hepatocellular carcinoma, 12 with liver metastasis, 6 with obstructive jaundice, 9 with carcinoma of gall bladder, 6 with carcinoma of pancreas and 7 with periampullary carcinoma. 24 Of the 52 patients studied had jaundice and 28 were without jaundice. LAP as compared to the other enzymes AST, ALT, GGT, ALP and AST/ALT ratio and GGT/AST ratio showed 100% elevation in obstructive jaundice, carcinoma of gall bladder and pancreas and periampullary carcinoma, 91.7% elevation in hepatocellular carcinoma and 83.3% elevation in liver metastasis. On comparing the levels of these enzymes in non jaundiced and jaundiced groups, LAP was elevated in both jaundiced and non jaundiced groups in 95.8% and 92.9% cases respectively whereas the other enzymes AST showed increase from 67.9% to 100%, ALT from 21.4% to 83.3%, GGT from 71.4% to 95.4% and ALP from 82.1% to 100% in non jaundiced and jaundiced groups respectively indicating that LAP rises in hepatic dysfunction due to hepatobiliary malignancy whereas the other liver function enzymes showed increased hepatic dysfunction due to hepatobiliary malignancy with the onset of jaundice thereby indicating that LAP is a better indicator of hepatobiliary malignancy as compared to other enzymes. The quantitative methods used for determination are reliable, accurate, simple, rapid and cost effective and therefore have better application in a clinical setting.  相似文献   

20.
Urinary excretion of beta-aminoisobutyric acid (BAIB), was determined in 28 active and 12 inactive bladder cancer patients. Mean excretion of BAIB was higher in active cancer patients-187.8 mg/24 hours whereas it was 120.4 mg/24 hours in inactive cancer patients. The increased BAIB excretion in both disease groups was independent of tumour stage. BAIB appears to be a useful diagnositic aid in the assessment of bladder cancer patients.  相似文献   

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