Ratio of dual emission signals (400 nm/490 nm), which is proportional to intracellular Ca2+ concentration, was plotted against time, and the difference between maximal response after stimulation and basal value (before stimulation) was determined. Values obtained in this way were plotted as a ...
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当年朝鲜战争中,美国空军用来对付苏制米格-15的最佳机型是F-86。按照美国空军单方面吹牛,F-86对付米格-15那是相当“不含糊”。美国空军协会主办的《空军杂志》今年4月刊文称,根据美国空军在战后立刻进行的评估,在战斗中每损失一架美国空军飞机,就击落14架敌机。在进一步审查之后,该比率降至10:1。而其他研究表明,7...