Method evaluation of an enzymatic method for serum creatinine     

K. S. S. Saibaba  P. V. L. N. Srinivasa Rao  K. V. Dakshina Murty  M. Vijaya Bhaskar 《Indian journal of clinical biochemistry : IJCB》1997,12(2):139-141

Selecting the correct method for routine analysis by ‘method evaluation’ is an important component of quality assurance. It is a step-wise procedure that evaluates various analytical parameters like accuracy, precision etc of the given method. Finally reference intervals are established for selected population. We evaluated an enzymatic method for serum creatinine. The results show that it is an acceptable method based on the above mentioned criteria.  相似文献   

Robust estimator design with an emphasis balance between performance and robustness     

Hyeon-Cheol Lee  Don R. Halverson 《Journal of The Franklin Institute》2007,344(7):954-968

From a number of ML estimators (typically unbiased) of practical interest which include the variance for a Gaussian distribution, the standard deviation for a Laplace distribution, the variance for a Rayleigh distribution and a “spread parameter” for a Cauchy distribution, we design robust estimators according to an emphasis balance between normalized performance and normalized robustness. We measure performance with inverted MSE and robustness with a differential geometric approach.  相似文献   

鄂州市莲花山地质特征     

黄运开  吕新华  周高志  刘永耀  齐定清  刘玉珠 《人天科学研究》1995,(5)

莲花山地处淮阳山字型前弧西翼,地壳组成主要是强烈钠长石化的中细粒闪长岩和斑状斜长花岗岩。由一系列断裂、节理(或劈理)组成、以格状构造为特征的现存构造格局显然是新华夏系构造迭加而造成的,力学结构面性质、特征显示它们形成于岩体冷却之后的脆性剪切应力作用。  相似文献   

Troponin T and Heart Type Fatty Acid Binding Protein (h-Fabp) as Biomarkers in Patients Presenting with Chest Pain     

Lakshmi Lavanya Reddy  Swarup A. V. Shah  Alpa J. Dherai  Chandrashekhar K. Ponde  Tester F. Ashavaid 《Indian journal of clinical biochemistry : IJCB》2016,31(1):87-92

Acute coronary syndrome (ACS) is a term for a range of clinical signs and symptoms suggestive of myocardial ischemia. It results in functional and structural changes and ultimately releasing protein from injured cardiomyocytes. These cardiac markers play a major role in diagnosis and prognosis of ACS. This study aims to assess the efficacy of heart type fatty acid binding protein (h-FABP) as a marker for ACS along with the routinely used hs-TropT. In our observational study, plasma h-FABP (cut-off 6.32 ng/ml) and routinely done hs-Trop T (cutoff 0.1 and 0.014 ng/ml) were estimated by immunometric laboratory assays in 88 patients with acute chest pain. Based on the clinical and laboratory test findings the patients were grouped into ACS (n = 41) and non-ACS (n = 47). The diagnostic sensitivity, specificity, NPV, PPV and ROC curve at 95 % CI were determined. Sensitivity of hs-TropT (0.1 ng/ml), hs-TropT (0.014 ng/ml) and h-FABP were 53, 86 and 78 % respectively and specificity for the same were 98, 73 and 70 % respectively. Sensitivity, specificity and NPV calculated for a cut-off combination of hs-TropT 0.014 ng/ml and h-FABP was 100, 51 and 100 % respectively. These results were substantiated by ROC analysis. Measurement of plasma h-FABP and hs-TropT together on admission appears to be more precise predictor of ACS rather than either hs-Trop T or h-FABP.  相似文献   

FDI、贸易开放与CO_2排放:以山东省为例          下载免费PDF全文

徐昱东 《科研管理》2016,37(8):76-84

基于向量误差修正模型(VECM),利用山东省1995-2012年时间序列数据,实证分析了外商直接投资(FDI)和对外贸易开放水平对碳排放强度的影响,研究发现:FDI对碳排放强度具有抑制效应,对外贸易开放度对碳排放强度具有助长效应,且后者的弹性系数为前者的1.5倍。论文给出的政策建议:升级外商投资的能耗准入标准;创造良好外部条件利用外商直接投资技术溢出效应以加快山东省低碳技术发展步伐;及时淘汰内资企业中的落后产能,避免内资企业成为"污染天堂"的替罪羊;发挥山东省的示范和借鉴价值、挖掘区域经济的发展潜力,须建立和落实生态补偿制度等。  相似文献   

高职表演艺术实用型人才培养模式的研究     

李雪  王永法  马雪飞 《沧州师专学报》2011,(2):32-33

结合当前社会经济发展给高职表演艺术教育带来的机遇和挑战,以高职表演艺术实用型人才培养模式为研究对象,从就业导向、专业建设、教育模式、实训基地建设、师资队伍建设五个方面进行研究。  相似文献   

基于“两型”视野下的长株潭职教“一体化”     

石璨 《娄底师专学报》2011,(3):128-130

＂职教一体化＂是长株潭＂两型＂社会建设综合配套改革的必然选择;组建职业教育集团是实现长株潭＂职教一体化＂的基本形式;引入市场机制,推行企业化管理是长株潭＂职教一体化＂改革成功的重要举措。  相似文献   

基于跳数限制的WSNs自适应协作FEC机制     

靳勇 《常熟理工学院学报》2011,25(8):106-110

针对无线协作通信的中继选择问题和高可靠性的需求,提出了一种基于跳数限制的无线传感器网络数据传榆的自适应协作FEC差错控制机制．无线传感器网络中,在数据链路层根据FEC能效在不同数据帧长下随通信距离变化的规律,为每一个数据帧选择最佳协作跳数并建立多中继协作FEC机制;网络层根据IPv6数据包头中的跳数限制域值设定协作传输跳数并计算得到当前数据帧所经历的跳数,根据跳数自适应调整FEC参数N．数学分析表明,该机制能够自适应为每一个数据包添加较少的冗余数据同时自适应选择最佳协作传输跳数,与传统FEC相比提供了更优通信性能．  相似文献   

一类加权p-Laplace算子基本解和Hardy-Sobolev型不等式     

廖冬妮  喻泽峰 《赣南师范学院学报》2011,32(6):30-33

从另一个角度研究欧氏空间Rn上的Hardy-Sobolev不等式.通过考察一类加权p-Laplace算子基本解,得到Hardy型不等式.利用积分关系法建立Hardy-Sobolev型不等式.所得结果丰富和拓展了Rn中的已有结论.  相似文献   

功能主义翻译目的论对中国翻译教学的启示     

卞建华 《德州学院学报》2011,27(3):33-38

功能主义翻译目的论在翻译教学方面多有建树。本文在总结功能主义翻译目的论代表人物弗米尔、诺德对翻译教学相关论述基础上,探讨了中国翻译教学现状、不足以及该派理论对中国翻译教学的启示。  相似文献