Modulating Cerebral Blood Flow by Carbon Dioxide and Temperature to Improve Functional Recovery and Attenuate Injury via Antiapoptotic and Antiautophagic Mechanisms in a Rat Global Cerebral Ischemia/ Reperfusion Model( III )=利用大鼠全腦缺血再灌注模型探討透過二氧化碳以及溫度調控腦部血流量以改善神經學功能的可能性以及透過抗細胞凋亡和抗細胞自噬減緩腦部傷害的機制( III )