positive criteria

The positive criteria of treadmill exercise testing ( TET) mainly reflect the changes induced by myocardial ischemia in biochemical, electrophysiological and hemodynamic three aspects.

平板运动试验（TET）的阳性标准，虽有不少，但均反映心肌缺血引起的生化、电生理及心肌收缩力3个方面的变化。

On Robust Strict Positive Real Stabilization Criteria

关于鲁棒严格正实镇定准则

In order to distinguish the true and false positive criteria in exercise electrocardiogram, we performed electrocardiographic exercise test in 44 patients.

为探讨从心电图角度区别运动试验真阳性或假阳性指标的方法，本文对44例不同人群患者作心电图踏车运动试验。

Positive criteria were syncopal attack, presyncope with systolic blood pressure less than 90 mm Hg and/ or heart rate below 60/ mm.

试验阳性标准为晕厥先兆伴收缩期血压＜90mm Hg（1mm Hg＝0.133kPa）和／或心率＜60次／min。

Taking marked increase in AgNOR granule counting (> 9.26), variation in granule size and uneven distribution with lump formation as positive criteria, the positive rate of AgNOR in gastric cancer group was higher than that in CAG group ( P < 0.005).

以细胞核内AgNOR计数明显增多（＞9.26）或大小不等，呈团块状分布为阳性指标，则胃癌检出率高于CAG（P＜0.005），中、重度CAG高于轻度（P＜0.05）。

In order to establish positive diagnostic criteria, the quality control standards and reference values were determined according to statistically significant multiple test results.

为确立阳性诊断的标准，根据具有统计学意义的多次检测结果确定质控标准及参考值。

The purity of MSCs could be ascertained with the positive identification of double criteria of CD44, or CD54 and Brdu, and negative identification of CD34 and CD45 coloration.

再以CD44、CD54和Brdu双标作为MSCs阳性鉴定，CD34、CD45染色作为MSCs阴性鉴定以确定MSCs的纯度。