从医学人类学看自然科学与社会科学的一体性

受二元对立思维模式的影响,自然科学与社会科学被认为存在这巨大的分歧。本文通过对交叉学科——医学人类学的研究方法、研究对象、研究者的社会化、理解与解释的方法论应用与道德命题这五个方面的探讨,力图发现两个学科的一体性与合作的可能。     

Climate change. Climate in Medieval time

Many papers have referred to a "Medieval Warm Period." But how well defined is climate in this period, and was it as warm as or warmer than it is today? In their Perspective, Bradley et al. review the evidence and conclude that although the High Medieval (1100 to 1200 A.D.) was warmer than subsequent centuries, it was not warmer than the late 20th century. Moreover, the warmest Medieval temperatures were not synchronous around the globe. Large changes in precipitation patterns are a particular characteristic of "High Medieval" time. The underlying mechanisms for such changes must be elucidated further to inform the ongoing debate on natural climate variability and anthropogenic climate change.