教学课程资源库 更多>>

关键词： 免疫荧光病理检验   敏感性   狼疮性肾炎  

摘要： 目的探究免疫荧光病理检查中荧光抗体的敏感性在诊断狼疮性肾炎的应用价值。方法选取我院2013年7月至2015年3月收治的112例狼疮性肾炎患者,所有患者均采用免疫荧光病理检验方法对其免疫病理进行探究。将其结果和实行光镜组织切片检查以及电镜检查的结果进行对比。同时对患者C_1q、C_3、IgG、IgM、IgA荧光抗在病理切片上的沉积状况进行观察,利用免疫荧光病理检查对狼疮性肾炎的阳性率进行诊断。结果经检验后,C_1q、C_3、IgG、IgM、IgA多数沉积在Ⅱ～Ⅴ型狼疮性肾炎的病理切片中,其沉积数量较多的常见Ⅳ型以及Ⅴ型病理切片中。将此结果和光镜组织切片以及电镜检查的结果进行对比,其阳性率经比较,以P〈0.05为差异,表示具有统计学意义。结论对狼疮性肾炎患者采用免疫荧光病理中荧光抗体敏感性进行诊断,其效果较为显著,具有临床应用价值。

关键词： Feature extraction   Bayesian   Regression   Class label   Appearance   Small sample size  

摘要： Regression techniques, such as ridge regression (RR) and logistic regression (LR), have been widely used in supervised learning for pattern classification. However, these methods mainly exploit the class label information for linear mapping function learning. They will become less effective when the number of training samples per class is small. In visual classification tasks such as face recognition, the appearance of the training sample images also conveys important discriminative information. This paper proposes a novel regression based classification model, namely Bayesian sample steered discriminative regression (BSDR), which simultaneously exploits the sample class label and the sample appearance for linear mapping function learning by virtue of the Bayesian formula. BSDR learns a linear mapping for each class to extract the image class label features, and classification can be simply done by nearest neighbor classifier. The proposed BSDR method has advantages such as small number of mappings, insensitiveness to input feature dimensionality and robustness to small sample size. Extensive experiments on several biometric databases also demonstrate the promising classification performance of our method.

关键词： 痕迹检验技术   刑事侦查技术   应用研究  

摘要： 痕迹检验技术主要是针对犯罪现场中遗留的指纹以及足迹等开展高效的提取以及分析方面的工作,使得犯罪嫌疑人的相貌等特征可以得到确认,使得刑事侦查的工作效率和工作质量都可以得到全面性的提高。文章针对痕迹检验技术在刑事侦查中的作用进行分析。

关键词： 尿液检验   尿液镜检   尿液干化学法   作用  

摘要： 目的探究尿液镜检在临床尿液检验中的应用效果和临床价值。方法选取100例尿液标本,均分别采用尿液干化学分析法检测和尿液镜检法检测,观察比较两种检测方法的检测结果。结果尿液镜检组患者白细胞阳性检出率高于尿液干化学分析组(P<0.05),红细胞检出阳性率低于尿液干化学分析组(P<0.05)。结论尿液检验中尿液镜检法和尿液干化学分析法检测结果存在一定差异性,临床尿液检测需将两种检测方法相结合,以提高检测准确率和科学性。

关键词： 国际贸易   计价货币   人民币  

摘要： 关于国际贸易计价货币一直是国际经济学研究的一个重点,本文分别从宏观层面、微观层面、金融体系层面分析影响国际贸易计价货币选择的因素,开展国际贸易计价货币研究,提出促进人民币跨境结算的配套措施,进而顺利地推进人民币国际化。

关键词： 检验检测机构   品鉴   艺术   第三方   检测认证机构   国家质检总局   质量检验   溯源体系  

摘要： 中国检验检疫学会魏传忠会长在全国政协会议上提出的艺术品鉴证质量溯源体系以“六位一体”为纲。其中，以检验检测为依托，是指以国家质检总局批准的商品质量检验检测认证机构为依托。作为我国质检体系的重要组成部分,

关键词： 信用证   合同   审证和改证   议付  

摘要： 信用证属于银行信用,是国际贸易买卖双方广泛采用的一种重要支付方式。信用证源于合同,但却独立于合同之外,信用证结算情况下,银行只按信用证处理业务。受益人应严格审证,与申请人沟通有关改证要求,确保信用证各项条款可以接受,以顺利生产出货,最终凭单证向银行交单议付,安全收款。

关键词： 质量控制   免疫学   检验分析  

摘要： 所谓质量控制,指的是利用先进的科学管理方法与高科技技术分析试验过程当中的误差,并且对有关的各个关节进行有效的控制与分析,最大化地保障实验结果的准确性与真实性。因此,我们必须充分重视质量控制对免疫学检验分析的作用,通过不同的方法加强实验室内部的质量控制。

关键词： 塔式起重机   平衡臂   功能原理   检验要求   起重量限制器  

摘要： 塔式起重机的平衡臂对塔式起重机的安全极为重要,应高度重视其检验检测,切不可粗心大意。文章对塔式起重机平衡臂的作用、功能及检验要求进行了探讨。

关键词： Oil sands reclamation   Spatial variation   Aspen   Nutrient availability   Soil microbial properties   Extracellular enzyme activity  

摘要： Examining the spatial interactions between above and belowground components of terrestrial ecosystems can give meaningful insight into the ecological processes happening at different scales. Understanding spatial dependence in these processes may help to evaluate reclamation success which is crucial for future management of such areas. The aim of this study was to measure the spatial patterns of soil biogeochemical properties in a young aspen stand reclaimed after oil sands extraction and to evaluate how the patterns were related to nutrient availability. Samples were collected from a 14-year old reclaimed site using a spatially explicit protocol with a minimum resolution of 0.5 m. Field-measured variables included forest floor depth and mass, tree cluster (canopy overlap), distance to nearest tree, and resin available nutrients. Soil microbial properties including microbial biomass C and N, basal respiration, and extracellular enzyme activity were measured during an eight-week laboratory incubation experiment. Geo-statistics were applied to examine the spatial patterns and model the space effect. A fine scale (<10 m) spatial pattern was found for the majority of stand variables, soil microbial properties, and available macronutrients (N, P, S and base cations). Macronutrients such as N, P and S availability had a fine scale cyclic spatial association with soil microbial properties, with an 8-10 m oscillation, which indicated belowground control on these nutrients. Spatial regression models also suggested a stronger microbial influence on the availability of these nutrients when compared to stand characteristics. However, stand characteristics exhibited significant control on base cations and micronutrient availability through the effect of forest floor depth and tree clustering. Although nutrient availability showed strong spatial relationships with belowground processes in the studied reclaimed site, similar relationships with aboveground properties appeared to be