论文标题
全部从博士学位上下坡？美国学术职业的典型影响轨迹
All downhill from the PhD? The typical impact trajectory of US academic careers
论文作者
论文摘要
在学术界，成熟的研究人员倾向于更高级，但是他们也倾向于写更高的影响文章吗？本文评估了长期出版（16岁以上）美国（美国）研究人员，将它们与较短的出版研究人员（1、6或10年）进行了对比。一位长期的美国研究人员被运营为恰好在2001年拥有Scopus索引期刊的第一篇文章，并在2016 - 2019年发表了一篇，美国的主要隶属关系是他们的第一篇和最后一篇文章。排除了大型团队（11多个作者）的研究人员。长期和较短的美国研究人员期刊文章的平均田野和年度标准化的引文影响相对于全国平均水平，随着时间的流逝，引文的影响逐渐减少，尤其是大量跌至最后一篇文章，这可能至少部分是由于自我引用的下降。在许多情况下，研究人员首先发布了美国平均引文影响研究，并以低于美国平均引文影响研究的方式发布。因此，研究经理不应假设高级研究人员通常会撰写最高的影响论文。
Within academia, mature researchers tend to be more senior, but do they also tend to write higher impact articles? This article assesses long-term publishing (16+ years) United States (US) researchers, contrasting them with shorter-term publishing researchers (1, 6 or 10 years). A long-term US researcher is operationalised as having a first Scopus-indexed journal article in exactly 2001 and one in 2016-2019, with US main affiliations in their first and last articles. Researchers publishing in large teams (11+ authors) were excluded. The average field and year normalised citation impact of long- and shorter-term US researchers' journal articles decreases over time relative to the national average, with especially large falls to the last articles published that may be at least partly due to a decline in self-citations. In many cases researchers start by publishing above US average citation impact research and end by publishing below US average citation impact research. Thus, research managers should not assume that senior researchers will usually write the highest impact papers.
