特异性

Because of its specificity and heat-unstable, UNG is effectively used in overcoming carry-over contamination in PCR.

利用UNG对尿嘧啶的特异性识别作用和对热不稳定的特性，将它用于PCR技术中可有效地防止结转污染造成的假阳性。

On validity, comparing with MMSE, CASI C-2.0 has a better specificity, and a same sensitivity.

结果：CASI C-2.0具有良好的信度，在效度方面，其敏感性与MMSE相当；特异性高于MMSE。

Result:①CASIC-2.0 has excellent reliability and the test result of CASI C-2.0 is stable.②50 as a cut-off score,the accuracy is high.③On reliability using ICD-10 criteria as "Gold Criteria" and 50 as a cut-off score,comparing with MMSE,CASIC-2.0 has a better specificity and the same sensitivity.

结果：①CASIC-2.0具有良好的信度，测定结果稳定；②使用50分作为CASIC-2.0诊断痴呆的截断值，其准确性最高；③在效度方面，以ICD-10为金标准，使用50分为截断值，与MMSE相比，CASIC-2.0的敏感性与MMSE相当，特异性高于MMSE。

OBJECTIVES: We examined the effect of specific topical treatment of rhinosinusitis on cough in patients presenting with a chronic cough associated with a postnasal drip or 'nasal catarrh'.

目的：在患有慢性咳嗽伴鼻后滴漏或鼻部卡他症状的患者中，研究针对鼻窦炎的特异性局部治疗对咳嗽的作用。

The new model targeted on Cathepsin K was proved to be feasible and effective in the screening for antiosteoporosis drug.

初筛以抑制木瓜蛋白酶的活性为指标，经筛选从1000株真菌中得到9株具有较强抑制效应的真菌，复筛采用对纯化的组织蛋白酶K的特异性抑制效应为指标。

Total RNA was extracted from flowers of cattleya, according to the conserved acid sequence for ACC oxidase in other orchids, we designed a pair of oligo nucleotide primers. Using RT-PCR method, a cDNA fragment about 967 base pair, which encoded 321 predicted amino acid residues, was amplified.

以卡特兰花瓣为试材，提取其总RNA，并根据其他兰花的ACC氧化酶(1-aminocyclopropane-1-carboxylic acid oxidase， ACO)基因保守序列设计一对特异性引物，通过RT-PCR法克隆得到1条967bp的卡特兰ACO cDNA片断，共编码321个氨基酸残基。

Malignant pleural effusion CYFRA21-1 and CEA sensitivity of 78% and 30.6%, and specificity were 80% and 91%.

恶性胸腔积液中CYFRA21-1和CEA的敏感性分别为78%和30.6%，而特异性则分别为80%和91%。

The cell membrane of endothelial cells was isolated and subjected to SDS-PAGE electrophoresis.

因为Plasmin对内皮细胞合成tPA抗原的影响有很高的特异性。

Although the pathologic changes of ICP are similar to those of placental ischemia,these alterations influenced directly the plaˉcental blood and oxygen supply function to result in bad pregnancy.

虽然ICP时胎盘病理改变与胎盘缺血缺氧时的改变相比无特异性，但形态学改变直接影响了胎盘的供血和供氧功能，导致了不良妊娠结局。

In diagnosing centrum metastases,MRI is more sensitive and correct than WBS.

在显示骨转移瘤方面，MRI较核素骨扫描具有高的敏感性、特异性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。