With research results showing the cumulative effects of sleep loss and its impact on productivity, doubt has been voiced about the accuracy of Steel's self-assessment.
随着研究结果显示睡眠不足的累积效应及其对生产力的影响，人们对斯蒂尔自我评估的准确性提出了质疑。
2
The loss associated with a risk is called the risk impact.
这种同风险相关联的损失被称作风险影响。
3
But General Petraeus said he needs time to assess the impact of the loss of one quarter of his U.S. combat power and that further reductions must be based on the situation at the time.