The authors selected their pottery shards from coastal, lagoon, riverside, and lakefront sites to get a range of ecological settings, and focused on shards with substantial crusted residues from foodstuffs. They also examined botanical records, where available, to get a sense of which plants were locally available at each site. After initial examination under a microscope, the most heavily crusted areas were imaged with scanning electron microscopy to better examine their fine structure. They also analyzed the lipids and bulk isotopes present in the residues.
https://doi.org/10.48550/arXiv.2603.03823
,这一点在新收录的资料中也有详细论述
The latest figures from the Ligue de Protection des Oiseaux (LPO), France's main bird protection charity, show 15,000 birds have washed up in France so far this year, 4,400 in Spain and 1,200 in Portugal. Most are puffins with significant numbers of common guillemots and little auks.。新收录的资料对此有专业解读
政策窗口打开,新模式在路上外部环境的变化,正在给这个行业注入新的确定性。
而从我们中国人的视角,我要同时研究两边的结构:美国病人什么样,中国病人什么样。中国病人是病人,非洲病人是病人,美国病人也是病人。做医疗必须有悲悯之心,要考虑到全世界的患者。