GUANGZHOU, April 18 (Xinhua) -- As a significant hub for manufacturing, trade and commerce, Guangzhou, the capital of Guangdong Province in southern China, is actively positioning itself as a center f ...

April 7 was World Health Day and this year's theme, as designated by the World Health Organization, was "Together for health. Stand with science." Whether it's rapid response against infectious diseas ...

BEIJING, April 19 (Xinhua) -- On a crisp Sunday morning, the starting gun rang out at an innovation zone on the southeastern outskirts of Beijing. More than 100 humanoid robotic runners clattered acro ...

在科研中，我们习惯于从数据中寻找关系，并且常常能得到相关关系。但问题在于，相关分析给出的，往往只是一个起点，而不是答案。从相关到因果之间，隐藏着一整套不那么显眼、却至关重要的前提：是否存在混杂？控制变量是否恰当？即使统计上再“显著”，结论也可能偏离真 ...