本研究以竹子S. densiflora为模型系统，量化单茎叶片面积分布不平等。通过测试正态、对数正态、Gamma和Weibull分布，发现Weibull分布拟合最佳（AIC值最低），其形状参数α与观测基尼系数G_P呈近等距关系（斜率95%CI 0.929-1.039，截距包含0）。验证了Weibull分布可有效 ...

If you're 73 years old or older as of this year, you are required to annually withdraw money from most retirement savings accounts. The size of this withdrawal varies with age and the amount of ...

You can’t make QCDs directly from your 401(k), but you can use a workaround Matt Webber is an experienced personal finance writer, researcher, and editor. He has published widely on personal finance, ...