导师资源与培训后高引期刊发表轨迹：来自生物科学导师-学员网络的证据
Mentorship resources and citation-elite journal publication trajectories after training: Evidence from bioscience mentor-mentee networks
- Peking University（北京大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究利用23.9万对生物科学导师-学员数据，发现导师资源促进培训期高引发表，但毕业后持续产出更依赖于网络连续性，体现阶段依赖的资源转化过程。
AI中文摘要：
导师制为学员提供知识、合作者和声誉，但这些资源何时能在培训之外支持学术研究？利用来自学术家谱（1800-2020年）的239,931对生物科学导师-学员配对，并与OpenAlex元数据关联，我们通过学员在高引期刊上的发表情况来考察这一问题，高引期刊由三个来源级引文指标识别。我们区分培训期间的导师和同伴资源与毕业后主题和合著网络连续性。分析结合轨迹比较、三种倾向得分匹配设计、PPML、两部分模型以及非重叠里程碑，将毕业后第1-3年的连续性与第4-10年和第6-20年的发表结果相关联。导师期间的引文精英期刊发表与后续发表正相关，但相关性因职业阶段而异。密切的导师合作和更大的同伴群体规模是培训期间发表的特征，而两者均与毕业后发表概率和强度负相关。早期主题和网络连续性与里程碑分析中的后续产出正相关；在扩展的常规时间窗内，主题连续性变得不那么有利，与后期议程拓宽一致。网络连续性与发表强度表现出最稳定的正相关。研究结果表明一个阶段依赖的资源转化过程：培训资源可能促进进入高引期刊发表，而持续产出与智力和关系纽带如何保留或重构相关。
英文摘要：
Mentorship provides mentees with knowledge, collaborators, and reputation, but when do these resources support scholarship beyond training? Using 239,931 bioscience mentor-mentee pairs from the Academic Family Tree (1800-2020) linked to OpenAlex metadata, we examine this question through mentees' publication in citation-elite journals, identified by three source-level citation indicators. We distinguish training-period mentor and peer resources from post-graduation topic and coauthorship network continuity. Analyses combine trajectory comparisons, three propensity-score matching designs, PPML, two-part model and non-overlapping landmarks relating continuity in post-graduation years 1-3 to publication outcomes in years 4-10 and 6-20. Citation-elite journal publishing during mentorship is positively associated with later publishing, but correlates differ by career stage. Close mentor collaboration and larger peer group size characterize training-period publishing, whereas both are negatively associated with post-graduation publication probability and intensity. Early topic and network continuity are positively associated with later output in landmark analyses; across extended conventional windows, topic continuity becomes less favorable, consistent with later agenda broadening. Network continuity shows the most stable positive association with publication intensity. The findings suggest a stage-dependent resource-conversion process: training resources may facilitate entry into citation-elite journal publishing, whereas sustained output is associated with how intellectual and relational ties are retained or reconfigured.
