电视剧幕后的博士Ph.D.TV

一大批以科学技术为核心的电视剧正在席卷美国的电视屏幕，并且取得了令人瞩目的成功。它们的创造者说关键在于要尽量保证科学原理的准确性，或者至少是让它们看上去像是这样。现在就让我们来看看以数学为主题的电视连续剧《数字追凶（Numb3rs）》是如何实现这一点的。[编者按]     

What makes a productive Ph.D. student?

This paper investigates how the social environment to which a Ph.D. student is exposed during her training relates to her scientific productivity. We investigate how supervisor and peers' characteristics are associated with the student's publication quantity, quality, and co-authorship network size. Unique to our study, we cover the entire Ph.D. student population of a European country for all the STEM fields analyzing 77,143 students who graduated in France between 2000 and 2014. We find that having a productive, mid-career, low-experienced, female supervisor who benefits from a national grant is positively associated with the student's productivity. Furthermore, we find that having few productive freshman peers and at least one female peer is positively associated with the student's productivity. Interestingly, we find heterogeneity in our results when breaking down the student population by field of research.